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| cd0f51057a | 
							
								
								
									
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								.gitignore
									
									
									
									
										vendored
									
									
								
							
							
						
						
									
										3
									
								
								.gitignore
									
									
									
									
										vendored
									
									
								
							@@ -174,3 +174,6 @@ cython_debug/
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# PyPI configuration file
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		||||
.pypirc
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		||||
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		||||
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		||||
.idea
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		||||
.vscode
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		||||
 
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		||||
							
								
								
									
										8
									
								
								.idea/.gitignore
									
									
									
										generated
									
									
										vendored
									
									
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										8
									
								
								.idea/.gitignore
									
									
									
										generated
									
									
										vendored
									
									
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							@@ -0,0 +1,8 @@
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# 默认忽略的文件
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		||||
/shelf/
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		||||
/workspace.xml
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		||||
# 基于编辑器的 HTTP 客户端请求
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		||||
/httpRequests/
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		||||
# Datasource local storage ignored files
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		||||
/dataSources/
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/dataSources.local.xml
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										43
									
								
								README.md
									
									
									
									
									
								
							
							
						
						
									
										43
									
								
								README.md
									
									
									
									
									
								
							@@ -1,3 +1,44 @@
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# pig-house-controller
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		||||
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		||||
猪舍主控节点,根据上位机的指令控制当前猪舍内所有设备(传感器,阀门,电机等),并汇聚当前猪舍传感器数据统一上报
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		||||
## LoRa通信协议约定
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		||||
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		||||
本项目中的LoRa通信采用自定义的帧格式,以支持精确寻址和大数据包的自动分片与重组。所有数据包均由主控节点主动发起。
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		||||
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		||||
### 1. 物理帧结构
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		||||
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		||||
每个通过LoRa UART模块发送的物理数据包都遵循以下结构:
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		||||
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		||||
| 字段                       | 长度 (字节) | 值 (Hex)          | 描述                            |
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		||||
|:-------------------------| :------------ | :---------------- |:------------------------------|
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		||||
| **帧头 (Header)**          | 1             | `0xED`            | 固定值,表示一个数据包的开始。               |
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		||||
| **数据长度 (Length)**        | 1             | `0x00`-`0xFF`     | 从`总包数`字段到`数据块`末尾的总字节数,不包含源地址。 |
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		||||
| **目标地址 (DestAddr)**      | 2             | `0x0000`-`0xFFFF` | 接收该数据包的设备地址。                  |
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		||||
| **总包数 (TotalChunks)**    | 1             | `0x01`-`0xFF`     | 表示当前消息被分成了几个包。`0x01`代表这是唯一的包。 |
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| **当前包序号 (CurrentChunk)** | 1             | `0x00`-`0xFE`     | 当前是第几个数据包(从0开始计数)。            |
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| **数据块 (ChunkData)**      | N             | -                 | 实际传输的数据片段。                    |
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| **源地址 (SourceAddr)**      | 2             | `0x0000`-`0xFFFF` | 发送该数据包的设备地址,由硬件自动拼接。          |
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		||||
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		||||
**示例:**
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发送一个数据为 `[0x01, 0x02, 0x03]` 的单包消息到地址 `0x1234`,发送方地址为 `0x5678`:
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`ED 05 12 34 01 00 01 02 03 56 78`
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- `ED`: 帧头
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- `05`: 后续长度 (1+1+3 = 5)
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- `12 34`: 目标地址
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		||||
- `01`: 总包数 (共1包)
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		||||
- `00`: 当前包序号 (第0包)
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		||||
- `01 02 03`: 数据块
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		||||
- `56 78`: 源地址
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		||||
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		||||
### 2. 数据分片 (Fragmentation)
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		||||
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		||||
- LoRa模块的物理层限制单次发送的数据部分**最大为240字节**。
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- 根据项目约定,为自定义协议头(总包数、当前包序号)预留2字节,地址由模块处理。
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		||||
- 因此,每个物理包中 **`数据块 (ChunkData)` 的最大长度为 `238` 字节**。
 | 
			
		||||
- `send_packet` 方法会自动处理分片逻辑。
 | 
			
		||||
 | 
			
		||||
### 3. 数据重组 (Reassembly)
 | 
			
		||||
 | 
			
		||||
- `receive_packet` 方法会缓存收到的分片。
 | 
			
		||||
- 当一个设备的所有分片都接收完毕后,`receive_packet` 会将它们自动重组成一个完整的消息,并向上层返回。
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		||||
- 由于通信是单向的(仅主控发送),接收端无需管理多个源地址的重组缓冲区。
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		||||
							
								
								
									
										0
									
								
								app/bus/__init__.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										0
									
								
								app/bus/__init__.py
									
									
									
									
									
										Normal file
									
								
							
							
								
								
									
										47
									
								
								app/bus/bus_interface.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										47
									
								
								app/bus/bus_interface.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,47 @@
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
 | 
			
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 | 
			
		||||
"""
 | 
			
		||||
总线通信模块的抽象接口定义 (契约)
 | 
			
		||||
 | 
			
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此接口定义了面向业务操作的方法,将所有实现细节(包括解析)完全封装。
 | 
			
		||||
"""
 | 
			
		||||
 | 
			
		||||
from abc import ABC, abstractmethod
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 | 
			
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class IBusManager(ABC):
 | 
			
		||||
    """
 | 
			
		||||
    总线管理器接口。
 | 
			
		||||
    调用方只关心业务,不关心实现。
 | 
			
		||||
    """
 | 
			
		||||
 | 
			
		||||
    @abstractmethod
 | 
			
		||||
    def execute_raw_command(self, bus_id: int, command: bytes) -> None:
 | 
			
		||||
        """
 | 
			
		||||
        【契约】执行一个“发后不理”的原始指令。
 | 
			
		||||
        
 | 
			
		||||
        Args:
 | 
			
		||||
            bus_id (int): 目标总线的编号。
 | 
			
		||||
            command (bytes): 要发送的原始命令字节。
 | 
			
		||||
        """
 | 
			
		||||
        pass
 | 
			
		||||
 | 
			
		||||
    @abstractmethod
 | 
			
		||||
    def execute_collect_task(self, task: dict) -> float | None:
 | 
			
		||||
        """
 | 
			
		||||
        【契约】执行一个完整的采集任务,并直接返回最终的数值。
 | 
			
		||||
 | 
			
		||||
        一个符合本接口的实现必须自己处理所有细节:
 | 
			
		||||
        - 从task字典中解析出 bus_id, command, parser_type。
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		||||
        - 发送指令。
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		||||
        - 接收响应。
 | 
			
		||||
        - 根据parser_type选择正确的内部解析器进行解析。
 | 
			
		||||
        - 返回最终的float数值,或在任何失败情况下返回None。
 | 
			
		||||
 | 
			
		||||
        Args:
 | 
			
		||||
            task (dict): 从Protobuf解码出的单个CollectTask消息字典。
 | 
			
		||||
 | 
			
		||||
        Returns:
 | 
			
		||||
            float | None: 成功解析则返回数值,否则返回None。
 | 
			
		||||
        """
 | 
			
		||||
        pass
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										300
									
								
								app/bus/rs485_manager.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										300
									
								
								app/bus/rs485_manager.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,300 @@
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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RS485 总线管理器实现
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此模块实现了 IBusManager 接口,用于管理 RS485 总线通信。
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"""
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from ..logs.logger import log
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# 导入 MicroPython 的 UART 和 Pin 库
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from machine import UART, Pin
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import time  # 用于添加延时,确保RS485方向切换
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import _thread  # 用于线程同步
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import struct  # 用于浮点数转换
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class RS485Manager:
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    """
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		||||
    RS485 总线管理器。
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		||||
    负责 RS485 设备的指令发送、响应接收和数据解析。
 | 
			
		||||
    """
 | 
			
		||||
 | 
			
		||||
    def __init__(self, bus_config, default_timeouts):
 | 
			
		||||
        """
 | 
			
		||||
        构造函数,注入配置。
 | 
			
		||||
        根据传入的配置初始化 RS485 总线对应的 UART 管理器。
 | 
			
		||||
 | 
			
		||||
        Args:
 | 
			
		||||
            bus_config: 包含所有总线配置的字典。
 | 
			
		||||
                                                    键是总线ID,值是该总线的详细配置。
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		||||
            default_timeouts: 包含各种默认超时设置的字典。
 | 
			
		||||
        """
 | 
			
		||||
        self.bus_config = bus_config
 | 
			
		||||
        self.default_timeouts = default_timeouts
 | 
			
		||||
        # 存储以总线号为key的UART管理器实例、RTS引脚和锁
 | 
			
		||||
        self.bus_ports = {}
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        log("RS485Manager 已使用配置初始化。")
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        log(f"总线配置: {self.bus_config}")
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        log(f"默认超时设置: {self.default_timeouts}")
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		||||
 | 
			
		||||
        # 遍历 bus_config,初始化 RS485 端口
 | 
			
		||||
        for bus_id, config in bus_config.items():
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            if config.get('protocol') == 'RS485':
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                try:
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                    uart_id = config['uart_id']
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		||||
                    baudrate = config['baudrate']
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                    pins = config['pins']
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                    tx_pin_num = pins['tx']
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                    rx_pin_num = pins['rx']
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                    rts_pin_num = pins['rts']  # RS485 的 DE/RE 方向控制引脚
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                    # 初始化 Pin 对象
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                    rts_pin = Pin(rts_pin_num, Pin.OUT)  # RTS 引脚设置为输出模式
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		||||
                    rts_pin.value(0)  # 默认设置为接收模式
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		||||
 | 
			
		||||
                    # 初始化 UART 对象
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		||||
                    # 注意:MicroPython 的 UART 构造函数可能不支持直接传入 Pin 对象,而是 Pin 编号
 | 
			
		||||
                    # 并且 rts 参数通常用于硬件流控制,RS485 的 DE/RE 需要手动控制
 | 
			
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                    uart = UART(uart_id, baudrate=baudrate, tx=tx_pin_num, rx=rx_pin_num,
 | 
			
		||||
                                timeout=self.default_timeouts.get('rs485_response', 500))
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		||||
 | 
			
		||||
                    self.bus_ports[bus_id] = {
 | 
			
		||||
                        'uart': uart,
 | 
			
		||||
                        'rts_pin': rts_pin,
 | 
			
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                        'lock': _thread.allocate_lock()
 | 
			
		||||
                    }
 | 
			
		||||
                    log(f"总线 {bus_id} (RS485) 的 UART 管理器初始化成功。UART ID: {uart_id}, 波特率: {baudrate}, TX: {tx_pin_num}, RX: {rx_pin_num}, RTS(DE/RE): {rts_pin_num}")
 | 
			
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                except KeyError as e:
 | 
			
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                    log(f"错误: 总线 {bus_id} 的 RS485 配置缺少关键参数: {e}")
 | 
			
		||||
                except Exception as e:
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                    log(f"错误: 初始化总线 {bus_id} 的 RS485 管理器失败: {e}")
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            else:
 | 
			
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                log(f"总线 {bus_id} 的协议不是 RS485,跳过初始化。")
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		||||
 | 
			
		||||
    @staticmethod
 | 
			
		||||
    def _calculate_crc16_modbus(data):
 | 
			
		||||
        """
 | 
			
		||||
        计算 Modbus RTU 的 CRC16 校验码。
 | 
			
		||||
        """
 | 
			
		||||
        crc = 0xFFFF
 | 
			
		||||
        for byte in data:
 | 
			
		||||
            crc ^= byte
 | 
			
		||||
            for _ in range(8):
 | 
			
		||||
                if crc & 0x0001:
 | 
			
		||||
                    crc >>= 1
 | 
			
		||||
                    crc ^= 0xA001
 | 
			
		||||
                else:
 | 
			
		||||
                    crc >>= 1
 | 
			
		||||
        return crc
 | 
			
		||||
 | 
			
		||||
    def execute_raw_command(self, bus_id, command):
 | 
			
		||||
        """
 | 
			
		||||
        【契约】执行一个“发后不理”的原始指令。
 | 
			
		||||
 | 
			
		||||
        Args:
 | 
			
		||||
            bus_id (int): 目标总线的编号。
 | 
			
		||||
            command (bytes): 要发送的原始命令字节。
 | 
			
		||||
        """
 | 
			
		||||
        if bus_id not in self.bus_ports:
 | 
			
		||||
            log(f"错误: 未找到总线 {bus_id} 的 RS485 配置。")
 | 
			
		||||
            return
 | 
			
		||||
 | 
			
		||||
        port_info = self.bus_ports[bus_id]
 | 
			
		||||
        uart = port_info['uart']
 | 
			
		||||
        rts_pin = port_info['rts_pin']
 | 
			
		||||
        lock = port_info['lock']
 | 
			
		||||
        with lock:
 | 
			
		||||
            try:
 | 
			
		||||
                rts_pin.value(1)  # 设置为发送模式 (DE/RE = HIGH)
 | 
			
		||||
                time.sleep_us(100)  # 短暂延时,确保方向切换完成
 | 
			
		||||
                uart.write(command)
 | 
			
		||||
                # 等待所有数据发送完毕
 | 
			
		||||
                uart.flush()
 | 
			
		||||
                time.sleep_us(100)  # 短暂延时,确保数据完全发出
 | 
			
		||||
                rts_pin.value(0)  # 切换回接收模式 (DE/RE = LOW)
 | 
			
		||||
                log(f"总线 {bus_id} 原始命令发送成功: {command.hex()}")
 | 
			
		||||
            except Exception as e:
 | 
			
		||||
                log(f"错误: 在总线 {bus_id} 上执行原始命令失败: {e}")
 | 
			
		||||
 | 
			
		||||
    def execute_collect_task(self, task):
 | 
			
		||||
        """
 | 
			
		||||
        【契约】执行一个完整的采集任务,并直接返回最终的数值。
 | 
			
		||||
 | 
			
		||||
        一个符合本接口的实现必须自己处理所有细节:
 | 
			
		||||
        - 从task字典中解析出 bus_id, command, parser_type。
 | 
			
		||||
        - 发送指令。
 | 
			
		||||
        - 接收响应。
 | 
			
		||||
        - 根据parser_type选择正确的内部解析器进行解析。
 | 
			
		||||
        - 返回最终的float数值,或在任何失败情况下返回None。
 | 
			
		||||
 | 
			
		||||
        Args:
 | 
			
		||||
            task: 从Protobuf解码出的单个CollectTask消息字典。
 | 
			
		||||
                         期望结构: {"command": {"bus_number": int, "command_bytes": bytes}}
 | 
			
		||||
 | 
			
		||||
        Returns:
 | 
			
		||||
            成功解析则返回数值,否则返回None。
 | 
			
		||||
        """
 | 
			
		||||
        # I. 任务参数解析与初步验证
 | 
			
		||||
        try:
 | 
			
		||||
            command_info = task.get("command")
 | 
			
		||||
            if not command_info:
 | 
			
		||||
                log("错误: CollectTask 缺少 'command' 字段。")
 | 
			
		||||
                return None
 | 
			
		||||
 | 
			
		||||
            bus_id = command_info.get("bus_number")
 | 
			
		||||
            command_bytes = command_info.get("command_bytes")
 | 
			
		||||
 | 
			
		||||
            # 增加对命令有效性的检查
 | 
			
		||||
            if bus_id is None or not command_bytes or len(command_bytes) < 2:
 | 
			
		||||
                log(f"错误: CollectTask 的 'command' 字段无效。bus_id: {bus_id}, command_bytes: {command_bytes}")
 | 
			
		||||
                return None
 | 
			
		||||
 | 
			
		||||
        except Exception as e:
 | 
			
		||||
            log(f"错误: 解析CollectTask失败: {e}. 任务: {task}")
 | 
			
		||||
            return None
 | 
			
		||||
 | 
			
		||||
        if bus_id not in self.bus_ports:
 | 
			
		||||
            log(f"错误: 未找到总线 {bus_id} 的 RS485 配置。")
 | 
			
		||||
            return None
 | 
			
		||||
 | 
			
		||||
        port_info = self.bus_ports[bus_id]
 | 
			
		||||
        uart = port_info['uart']
 | 
			
		||||
        rts_pin = port_info['rts_pin']
 | 
			
		||||
        lock = port_info['lock']
 | 
			
		||||
 | 
			
		||||
        response_bytes = None  # 在锁外部初始化,确保其作用域
 | 
			
		||||
        response_buffer = bytearray()
 | 
			
		||||
        with lock:
 | 
			
		||||
            try:
 | 
			
		||||
                # II. 线程安全与指令发送
 | 
			
		||||
                rts_pin.value(1)
 | 
			
		||||
                time.sleep_us(100)
 | 
			
		||||
                uart.write(command_bytes)
 | 
			
		||||
                uart.flush()
 | 
			
		||||
                time.sleep_us(100)
 | 
			
		||||
                rts_pin.value(0)
 | 
			
		||||
                log(f"总线 {bus_id} 原始命令发送成功: {command_bytes.hex()}")
 | 
			
		||||
 | 
			
		||||
                # III. 接收响应
 | 
			
		||||
                start_time = time.ticks_ms()
 | 
			
		||||
                response_timeout = self.default_timeouts.get('rs485_response', 500)
 | 
			
		||||
                while time.ticks_diff(time.ticks_ms(), start_time) < response_timeout:
 | 
			
		||||
                    if uart.any():
 | 
			
		||||
                        chunk = uart.read(32)
 | 
			
		||||
                        if chunk:
 | 
			
		||||
                            response_buffer.extend(chunk)
 | 
			
		||||
                            start_time = time.ticks_ms()  # 收到数据就重置超时
 | 
			
		||||
                    time.sleep_ms(5)
 | 
			
		||||
 | 
			
		||||
                if response_buffer:
 | 
			
		||||
                    # 动态地从请求命令中获取预期的从站ID和功能码
 | 
			
		||||
                    expected_slave_id = command_bytes[0]
 | 
			
		||||
                    expected_func_code = command_bytes[1]
 | 
			
		||||
                    
 | 
			
		||||
                    found_frame = self._find_modbus_frame(response_buffer, expected_slave_id, expected_func_code)
 | 
			
		||||
                    if found_frame:
 | 
			
		||||
                        log(f"总线 {bus_id} 收到有效响应: {found_frame.hex()}")
 | 
			
		||||
                        response_bytes = found_frame  # 将找到的帧赋值给外部变量
 | 
			
		||||
                    else:
 | 
			
		||||
                        log(f"警告: 总线 {bus_id} 响应中无有效帧。收到响应: {response_buffer.hex()}")
 | 
			
		||||
                else:
 | 
			
		||||
                    log(f"警告: 总线 {bus_id} 未收到响应。")
 | 
			
		||||
 | 
			
		||||
            except Exception as e:
 | 
			
		||||
                log(f"错误: 在总线 {bus_id} 上执行采集命令失败: {e}")
 | 
			
		||||
        
 | 
			
		||||
        # IV. 统一处理和解析
 | 
			
		||||
        # 无论是因为超时、未找到有效帧还是发生异常,只要 response_bytes 仍为 None,就任务失败
 | 
			
		||||
        if response_bytes is None:
 | 
			
		||||
            return None
 | 
			
		||||
 | 
			
		||||
        # 使用找到的有效帧进行解析
 | 
			
		||||
        parsed_value = RS485Manager._parse_modbus_rtu_default(response_bytes)
 | 
			
		||||
 | 
			
		||||
        return parsed_value
 | 
			
		||||
 | 
			
		||||
    def _find_modbus_frame(self, buffer: bytearray, expected_slave: int, func_code: int) -> bytes | None:
 | 
			
		||||
        """
 | 
			
		||||
        修复版:加调试;优先头检查;CRC 字节序标准 Modbus (低字节在前)。
 | 
			
		||||
        """
 | 
			
		||||
        log(f"搜索帧: buffer 长度 {len(buffer)}, hex {buffer.hex()}")
 | 
			
		||||
        i = 0
 | 
			
		||||
        while i < len(buffer) - 6:  # 最小 7 字节,-6 安全
 | 
			
		||||
            if buffer[i] == expected_slave and buffer[i + 1] == func_code:
 | 
			
		||||
                byte_count = buffer[i + 2]
 | 
			
		||||
                frame_len = 3 + byte_count + 2
 | 
			
		||||
                if len(buffer) - i >= frame_len:
 | 
			
		||||
                    frame = bytes(buffer[i:i + frame_len])
 | 
			
		||||
                    # CRC 预校验(标准 Modbus:CRC 低字节在前)
 | 
			
		||||
                    core = frame[:-2]
 | 
			
		||||
                    calc_crc = self._calculate_crc16_modbus(core)
 | 
			
		||||
                    low_crc = frame[-2]
 | 
			
		||||
                    high_crc = frame[-1]
 | 
			
		||||
                    recv_crc = (high_crc << 8) | low_crc  # 高<<8 | 低
 | 
			
		||||
                    log(f"候选帧 at {i}: {frame.hex()}, calc CRC {calc_crc:04X}, recv {recv_crc:04X}")
 | 
			
		||||
                    if calc_crc == recv_crc:
 | 
			
		||||
                        log(f"找到有效帧: {frame.hex()}")
 | 
			
		||||
                        return frame
 | 
			
		||||
                    else:
 | 
			
		||||
                        log(f"CRC 不匹配,跳过 (calc {calc_crc:04X} != recv {recv_crc:04X})")
 | 
			
		||||
            i += 1
 | 
			
		||||
        log("无有效帧")
 | 
			
		||||
        return None
 | 
			
		||||
 | 
			
		||||
    @staticmethod
 | 
			
		||||
    def _parse_modbus_rtu_default(response_bytes):  # 改名,支持整数/浮点
 | 
			
		||||
        """
 | 
			
		||||
        修复版:动态数据长;CRC 只用核心。
 | 
			
		||||
        """
 | 
			
		||||
        if not response_bytes or len(response_bytes) < 7:
 | 
			
		||||
            log(f"警告: 响应过短。响应: {response_bytes.hex() if response_bytes else 'None'}")
 | 
			
		||||
            return None
 | 
			
		||||
 | 
			
		||||
        # CRC 校验(只核心)
 | 
			
		||||
        data_for_crc = response_bytes[:-2]
 | 
			
		||||
        received_crc = (response_bytes[-1] << 8) | response_bytes[-2]
 | 
			
		||||
 | 
			
		||||
        calculated_crc = RS485Manager._calculate_crc16_modbus(data_for_crc)
 | 
			
		||||
        if calculated_crc != received_crc:
 | 
			
		||||
            log(f"错误: CRC失败。接收: {received_crc:04X}, 计算: {calculated_crc:04X}. 响应: {response_bytes.hex()}")
 | 
			
		||||
            return None
 | 
			
		||||
 | 
			
		||||
        function_code = response_bytes[1]
 | 
			
		||||
        byte_count = response_bytes[2]
 | 
			
		||||
        data_bytes = response_bytes[3:3 + byte_count]
 | 
			
		||||
 | 
			
		||||
        if function_code not in [0x03, 0x04]:
 | 
			
		||||
            log(f"警告: 功能码 {function_code:02X} 不符。")
 | 
			
		||||
            return None
 | 
			
		||||
 | 
			
		||||
        if len(data_bytes) != byte_count:
 | 
			
		||||
            log(f"错误: 数据长 {len(data_bytes)} != {byte_count}")
 | 
			
		||||
            return None
 | 
			
		||||
 | 
			
		||||
        # 动态解析
 | 
			
		||||
        if byte_count == 2:
 | 
			
		||||
            # 整数 (e.g., 温度)
 | 
			
		||||
            try:
 | 
			
		||||
                value = int.from_bytes(data_bytes, 'big')  # 或 signed '>h'
 | 
			
		||||
                parsed_value = value
 | 
			
		||||
                log(f"成功解析整数: {parsed_value}")
 | 
			
		||||
                return parsed_value
 | 
			
		||||
            except Exception as e:
 | 
			
		||||
                log(f"整数解析失败: {e}")
 | 
			
		||||
                return None
 | 
			
		||||
        elif byte_count == 4:
 | 
			
		||||
            # 浮点
 | 
			
		||||
            try:
 | 
			
		||||
                parsed_value = struct.unpack('>f', data_bytes)[0]
 | 
			
		||||
                log(f"成功解析浮点: {parsed_value}")
 | 
			
		||||
                return parsed_value
 | 
			
		||||
            except Exception as e:
 | 
			
		||||
                log(f"浮点失败: {e}")
 | 
			
		||||
                return None
 | 
			
		||||
        else:
 | 
			
		||||
            log(f"警告: 未知字节数 {byte_count}")
 | 
			
		||||
            return None
 | 
			
		||||
							
								
								
									
										99
									
								
								app/config/config.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										99
									
								
								app/config/config.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,99 @@
 | 
			
		||||
#!/usr/bin/env python
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
项目全局配置文件
 | 
			
		||||
 | 
			
		||||
集中管理所有硬件引脚、通信参数和软件配置,
 | 
			
		||||
便于统一修改和适配不同的硬件版本。
 | 
			
		||||
"""
 | 
			
		||||
 | 
			
		||||
# --- LoRa 模块配置 ---
 | 
			
		||||
# 假设LoRa模块使用独立的UART进行通信
 | 
			
		||||
LORA_CONFIG = {
 | 
			
		||||
    # 平台LoRa地址
 | 
			
		||||
    'master_address': 0x01,
 | 
			
		||||
 | 
			
		||||
    # LoRa模块连接的UART总线ID (0, 1, or 2 on ESP32)
 | 
			
		||||
    'uart_id': 2,
 | 
			
		||||
 | 
			
		||||
    # LoRa模块的通信波特率
 | 
			
		||||
    'baudrate': 9600,
 | 
			
		||||
 | 
			
		||||
    # LoRa模块连接的GPIO引脚
 | 
			
		||||
    'pins': {
 | 
			
		||||
        'tx': 5,  # UART TX
 | 
			
		||||
        'rx': 4,  # UART RX
 | 
			
		||||
    },
 | 
			
		||||
 | 
			
		||||
    # LoRa Mesh 模块发送模式(EC: 透传; ED: 完整数据包)
 | 
			
		||||
    # e.g.
 | 
			
		||||
    #   EC: 接收端只会接收到消息, 不会接收到请求头
 | 
			
		||||
    #       e.g. 发送: EC 05 02 01 48 65 6c 6c 6f
 | 
			
		||||
    #            (EC + 05(消息长度) + 0201(地址) + "Hello"(消息本体))
 | 
			
		||||
    #            接收: 48 65 6c 6c 6f ("Hello")
 | 
			
		||||
    #   ED: 接收端会接收完整数据包,包含自定义协议头和地址信息。
 | 
			
		||||
    #       e.g. 发送: ED 05 12 34 01 00 01 02 03
 | 
			
		||||
    #            (ED(帧头) + 05(Length, 即 1(总包数)+1(当前包序号)+3(数据块)) + 12 34(目标地址) + 01(总包数) + 00(当前包序号) + 01 02 03(数据块))
 | 
			
		||||
    #            接收: ED 05 12 34 01 00 01 02 03 56 78(56 78 是发送方地址,会自动拼接到消息末尾)
 | 
			
		||||
    'lora_mesh_mode': 'ED',
 | 
			
		||||
 | 
			
		||||
    # 单包最大用户数据数据长度, 模块限制240, 去掉两位自定义包头, 还剩238
 | 
			
		||||
    'max_chunk_size': 238
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
# --- 总线配置 ---
 | 
			
		||||
# 使用字典来定义项目中的所有通信总线
 | 
			
		||||
# key是总线ID (bus_id),value是该总线的详细配置字典。
 | 
			
		||||
# 这种结构使得 command_processor 可以通过 bus_id 动态获取其配置。
 | 
			
		||||
BUS_CONFIG = {
 | 
			
		||||
    # --- 总线 1 ---
 | 
			
		||||
    1: {
 | 
			
		||||
        # 总线协议类型,用于程序动态选择不同的处理逻辑
 | 
			
		||||
        'protocol': 'RS485',
 | 
			
		||||
 | 
			
		||||
        # 该总线使用的硬件UART ID
 | 
			
		||||
        'uart_id': 1,
 | 
			
		||||
 | 
			
		||||
        # 该总线的通信波特率
 | 
			
		||||
        'baudrate': 9600,
 | 
			
		||||
 | 
			
		||||
        # 该总线使用的GPIO引脚
 | 
			
		||||
        'pins': {
 | 
			
		||||
            'tx': 16,  # RS485 TX
 | 
			
		||||
            'rx': 17,  # RS485 RX
 | 
			
		||||
            'rts': 15,  # RS485 DE/RE 方向控制引脚
 | 
			
		||||
        }
 | 
			
		||||
    },
 | 
			
		||||
 | 
			
		||||
    # 如果未来有第二条总线,或不同协议的总线,可以直接在这里添加
 | 
			
		||||
    # 2: {
 | 
			
		||||
    #     'protocol': 'RS485',
 | 
			
		||||
    #     'uart_id': 0,
 | 
			
		||||
    #     'baudrate': 19200,  # 这条总线可以有不同的波特率
 | 
			
		||||
    #     'pins': {
 | 
			
		||||
    #         'tx': 25,
 | 
			
		||||
    #         'rx': 26,
 | 
			
		||||
    #         'rts': 27,
 | 
			
		||||
    #     }
 | 
			
		||||
    # },
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
# --- 全局超时设置 (毫秒) ---
 | 
			
		||||
DEFAULT_TIMEOUTS = {
 | 
			
		||||
    'rs485_response': 500,  # 等待RS485设备响应的默认超时时间
 | 
			
		||||
    'lora_at_command': 300,  # 等待LoRa模块AT指令响应的超时时间
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
# --- 系统参数配置 ---
 | 
			
		||||
SYSTEM_PARAMS = {
 | 
			
		||||
    # 任务队列的最大长度。用于主线程和工作线程之间的缓冲。
 | 
			
		||||
    # 如果LoRa指令瞬间并发量大,可以适当调高此值。
 | 
			
		||||
    # 如果内存紧张,可以适当调低。
 | 
			
		||||
    'task_queue_max_size': 10,
 | 
			
		||||
 | 
			
		||||
    # 全局调试日志开关
 | 
			
		||||
    # True:  所有 logger.log() 的信息都会被打印到串口。
 | 
			
		||||
    # False: logger.log() 将不执行任何操作,用于发布产品。
 | 
			
		||||
    'debug_enabled': True,
 | 
			
		||||
}
 | 
			
		||||
							
								
								
									
										0
									
								
								app/logs/__init__.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										0
									
								
								app/logs/__init__.py
									
									
									
									
									
										Normal file
									
								
							
							
								
								
									
										28
									
								
								app/logs/logger.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										28
									
								
								app/logs/logger.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,28 @@
 | 
			
		||||
#!/usr/bin/env python
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
一个简单的、可配置的日志记录器模块。
 | 
			
		||||
"""
 | 
			
		||||
import _thread
 | 
			
		||||
from app.config.config import *
 | 
			
		||||
 | 
			
		||||
# 创建一个锁,用于在多线程环境中同步对print的调用
 | 
			
		||||
log_lock = _thread.allocate_lock()
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def log(message: str):
 | 
			
		||||
    """
 | 
			
		||||
    打印一条日志消息,是否实际输出取决于配置文件。
 | 
			
		||||
    使用锁来确保多线程环境下的输出不会混乱。
 | 
			
		||||
 | 
			
		||||
    Args:
 | 
			
		||||
        message (str): 要打印的日志消息。
 | 
			
		||||
    """
 | 
			
		||||
    # 从配置文件中获取调试开关的状态
 | 
			
		||||
    # .get()方法可以安全地获取值,如果键不存在,则返回默认值False
 | 
			
		||||
    if SYSTEM_PARAMS.get('debug_enabled', False):
 | 
			
		||||
        with log_lock:
 | 
			
		||||
            print(message)
 | 
			
		||||
 | 
			
		||||
    # 如果开关为False,此函数会立即返回,不执行任何操作。
 | 
			
		||||
							
								
								
									
										0
									
								
								app/lora/__init__.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										0
									
								
								app/lora/__init__.py
									
									
									
									
									
										Normal file
									
								
							
							
								
								
									
										53
									
								
								app/lora/lora_interface.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										53
									
								
								app/lora/lora_interface.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,53 @@
 | 
			
		||||
#!/usr/bin/env python
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
LoRa通信模块的抽象接口定义 (契约)
 | 
			
		||||
 | 
			
		||||
这个文件定义了一个LoRa处理器应该具备哪些功能,
 | 
			
		||||
但不包含任何具体的实现代码。任何具体的LoRa处理器,
 | 
			
		||||
无论是UART的还是SPI的,都必须实现这里定义的所有方法。
 | 
			
		||||
"""
 | 
			
		||||
 | 
			
		||||
# abc (Abstract Base Class) 是Python定义接口的标准方式
 | 
			
		||||
from abc import ABC, abstractmethod
 | 
			
		||||
 | 
			
		||||
class ILoraManager(ABC):
 | 
			
		||||
    """
 | 
			
		||||
    LoRa处理器接口。
 | 
			
		||||
    它规定了所有LoRa处理器实现类必须提供的功能。
 | 
			
		||||
    """
 | 
			
		||||
 | 
			
		||||
    @abstractmethod
 | 
			
		||||
    def receive_packet(self):
 | 
			
		||||
        """
 | 
			
		||||
        【契约】非阻塞地检查并接收一个数据包。
 | 
			
		||||
        
 | 
			
		||||
        一个符合本接口的实现必须:
 | 
			
		||||
        - 检查是否有新的数据包。
 | 
			
		||||
        - 如果有,读取、解析并返回负载数据。
 | 
			
		||||
        - 如果没有,必须立刻返回None,不得阻塞。
 | 
			
		||||
 | 
			
		||||
        Returns:
 | 
			
		||||
            bytes: 如果成功接收到一个数据包,返回该数据包的字节。
 | 
			
		||||
            None:  如果当前没有可读的数据包。
 | 
			
		||||
        """
 | 
			
		||||
        pass
 | 
			
		||||
 | 
			
		||||
    @abstractmethod
 | 
			
		||||
    def send_packet(self, data_bytes: bytes) -> bool:
 | 
			
		||||
        """
 | 
			
		||||
        【契约】发送一个数据包。
 | 
			
		||||
 | 
			
		||||
        一个符合本接口的实现必须:
 | 
			
		||||
        - 接收一个bytes类型的参数。
 | 
			
		||||
        - 将这些数据通过LoRa模块发送出去。
 | 
			
		||||
        - 返回一个布尔值表示发送指令是否成功提交。
 | 
			
		||||
        
 | 
			
		||||
        Args:
 | 
			
		||||
            data_bytes (bytes): 需要发送的字节数据。
 | 
			
		||||
        
 | 
			
		||||
        Returns:
 | 
			
		||||
            bool: True表示发送指令已成功提交,False表示因任何原因失败。
 | 
			
		||||
        """
 | 
			
		||||
        pass
 | 
			
		||||
							
								
								
									
										203
									
								
								app/lora/lora_mesh_uart_passthrough_manager.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										203
									
								
								app/lora/lora_mesh_uart_passthrough_manager.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,203 @@
 | 
			
		||||
#!/usr/bin/env python
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
LoRa模块的具体实现 (UART Passthrough for LoRa Mesh)
 | 
			
		||||
 | 
			
		||||
负责与LoRa模块进行底层通信,并向上层提供标准化的数据包收发接口。
 | 
			
		||||
这个实现针对的是通过UART进行透传的LoRa Mesh模块。
 | 
			
		||||
"""
 | 
			
		||||
 | 
			
		||||
from ..logs.logger import log
 | 
			
		||||
from machine import UART
 | 
			
		||||
import time
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
class LoRaMeshUartPassthroughManager:
 | 
			
		||||
    """
 | 
			
		||||
    通过UART与LoRa Mesh模块通信的处理器实现 (ED模式)。
 | 
			
		||||
    实现了自动分片与重组逻辑。
 | 
			
		||||
    """
 | 
			
		||||
 | 
			
		||||
    def __init__(self, lora_config: dict):
 | 
			
		||||
        """
 | 
			
		||||
        初始化LoRa处理器。
 | 
			
		||||
 | 
			
		||||
        Args:
 | 
			
		||||
            lora_config (dict): 来自全局配置文件的LoRa配置字典。
 | 
			
		||||
        """
 | 
			
		||||
        log("LoRaMeshUartPassthroughManager: 初始化...")
 | 
			
		||||
 | 
			
		||||
        # --- 配置注入 ---
 | 
			
		||||
        self.master_address = lora_config.get('master_address')
 | 
			
		||||
        self.uart_id = lora_config.get('uart_id')
 | 
			
		||||
        self.baudrate = lora_config.get('baudrate')
 | 
			
		||||
        self.pins = lora_config.get('pins')
 | 
			
		||||
        self.max_chunk_size = lora_config.get('max_chunk_size')
 | 
			
		||||
        self.lora_mesh_mode = b'\xed'
 | 
			
		||||
        # TODO 目前这个配置没用, 完全按ED处理的
 | 
			
		||||
        if lora_config.get('lora_mesh_mode') == 'EC':
 | 
			
		||||
            self.lora_mesh_mode = b'\xec'
 | 
			
		||||
 | 
			
		||||
        # --- 硬件初始化 ---
 | 
			
		||||
        self.uart = UART(self.uart_id, self.baudrate, tx=self.pins['tx'], rx=self.pins['rx'])
 | 
			
		||||
 | 
			
		||||
        # --- 内部状态变量 ---
 | 
			
		||||
        self._rx_buffer = bytearray()  # UART接收缓冲区
 | 
			
		||||
        self._reassembly_cache = {}  # 分片重组缓冲区 { chunk_index: chunk_data }
 | 
			
		||||
        self._expected_chunks = 0  # 当前会话期望的总分片数
 | 
			
		||||
 | 
			
		||||
        log(f"LoRaMeshUartPassthroughManager: 配置加载完成. UART ID: {self.uart_id}, Baudrate: {self.baudrate}, 针脚: {self.pins}")
 | 
			
		||||
 | 
			
		||||
    def send_packet(self, payload: bytes) -> bool:
 | 
			
		||||
        """
 | 
			
		||||
        【实现】发送一个数据包,自动处理分片。
 | 
			
		||||
 | 
			
		||||
        Args:
 | 
			
		||||
            payload (bytes): 需要发送的完整业务数据。
 | 
			
		||||
 | 
			
		||||
        Returns:
 | 
			
		||||
            bool: True表示所有分片都已成功提交发送,False表示失败。
 | 
			
		||||
        """
 | 
			
		||||
        max_chunk_size = self.max_chunk_size
 | 
			
		||||
        if not payload:
 | 
			
		||||
            total_chunks = 1
 | 
			
		||||
        else:
 | 
			
		||||
            total_chunks = (len(payload) + max_chunk_size - 1) // max_chunk_size
 | 
			
		||||
 | 
			
		||||
        try:
 | 
			
		||||
            for i in range(total_chunks):
 | 
			
		||||
                chunk_index = i
 | 
			
		||||
                start = i * max_chunk_size
 | 
			
		||||
                end = start + max_chunk_size
 | 
			
		||||
                chunk_data = payload[start:end]
 | 
			
		||||
 | 
			
		||||
                # --- 组装物理包 ---
 | 
			
		||||
                header = b'\xed'
 | 
			
		||||
                dest_addr_bytes = self.master_address.to_bytes(2, 'big')
 | 
			
		||||
                total_chunks_bytes = total_chunks.to_bytes(1, 'big')
 | 
			
		||||
                current_chunk_bytes = chunk_index.to_bytes(1, 'big')
 | 
			
		||||
 | 
			
		||||
                # 计算后续长度(总包数和当前包序号是自定义包头, 各占一位, 标准包头算在长度内)
 | 
			
		||||
                length_val = 2 + len(chunk_data)
 | 
			
		||||
                length_bytes = length_val.to_bytes(1, 'big')
 | 
			
		||||
 | 
			
		||||
                # 拼接成最终的数据包
 | 
			
		||||
                packet_to_send = header + length_bytes + dest_addr_bytes + total_chunks_bytes + current_chunk_bytes + chunk_data
 | 
			
		||||
 | 
			
		||||
                self.uart.write(packet_to_send)
 | 
			
		||||
                log(f"LoRa: 发送分片 {chunk_index + 1}/{total_chunks} 到地址 {self.master_address}")
 | 
			
		||||
 | 
			
		||||
                # 让出CPU, 模块将缓存区的数据发出去本身也需要时间
 | 
			
		||||
                time.sleep_ms(10)
 | 
			
		||||
 | 
			
		||||
            return True
 | 
			
		||||
 | 
			
		||||
        except Exception as e:
 | 
			
		||||
            log(f"LoRa: 发送数据包失败: {e}")
 | 
			
		||||
            return False
 | 
			
		||||
 | 
			
		||||
    def receive_packet(self) -> bytes | None:
 | 
			
		||||
        """
 | 
			
		||||
        【实现】非阻塞地检查、解析并重组一个完整的数据包。
 | 
			
		||||
        """
 | 
			
		||||
        # 1. 从硬件读取数据到缓冲区
 | 
			
		||||
        if self.uart.any():
 | 
			
		||||
            new_data = self.uart.read()
 | 
			
		||||
            if new_data:
 | 
			
		||||
                log(f"LoRa: UART收到原始数据 (长度 {len(new_data)}): {new_data.hex()}")
 | 
			
		||||
                self._rx_buffer.extend(new_data)
 | 
			
		||||
 | 
			
		||||
        # 如果缓冲区为空,没有必要继续处理
 | 
			
		||||
        if not self._rx_buffer:
 | 
			
		||||
            return None
 | 
			
		||||
 | 
			
		||||
        # 2. 只要缓冲区有数据就持续尝试从缓冲区解析包
 | 
			
		||||
        while len(self._rx_buffer) > 0:
 | 
			
		||||
            log(f"LoRa: --- 开始新一轮解析, 缓冲区 (长度 {len(self._rx_buffer)}): {self._rx_buffer.hex()} ---")
 | 
			
		||||
 | 
			
		||||
            # 2.1 检查头部和长度字段是否存在
 | 
			
		||||
            if len(self._rx_buffer) < 2:
 | 
			
		||||
                log("LoRa: 缓冲区数据不足 (小于2字节),无法读取包头。等待更多数据...")
 | 
			
		||||
                return None  # 数据不足,无法读取长度
 | 
			
		||||
 | 
			
		||||
            # 2.2 检查帧头是否正确
 | 
			
		||||
            if self._rx_buffer[0] != 0xED:
 | 
			
		||||
                log(f"LoRa: 接收到错误帧头: {hex(self._rx_buffer[0])},正在寻找下一个ED...")
 | 
			
		||||
                next_ed = self._rx_buffer.find(b'\xed', 1)
 | 
			
		||||
                if next_ed == -1:
 | 
			
		||||
                    log("LoRa: 缓冲区无有效帧头,已清空。")
 | 
			
		||||
                    self._rx_buffer[:] = b''
 | 
			
		||||
                    return None  # 清空后没有数据了, 直接返回
 | 
			
		||||
                else:
 | 
			
		||||
                    log(f"LoRa: 在位置 {next_ed} 找到下一个有效帧头,丢弃之前的数据。")
 | 
			
		||||
                    self._rx_buffer = self._rx_buffer[next_ed:]
 | 
			
		||||
                    continue  # 继续循环,用新的缓冲区数据重新开始解析
 | 
			
		||||
 | 
			
		||||
            # 2.3 检查包是否完整
 | 
			
		||||
            payload_len = self._rx_buffer[1]
 | 
			
		||||
            # 物理层在末尾又加了2字节的源地址,所以完整包长需要+2。
 | 
			
		||||
            total_packet_len = 1 + 1 + payload_len + 2
 | 
			
		||||
            log(f"LoRa: 帧头正确(ED)。声明的后续包长(payload_len): {payload_len}。计算出的总包长: {total_packet_len}。")
 | 
			
		||||
 | 
			
		||||
            if len(self._rx_buffer) < total_packet_len:
 | 
			
		||||
                log(f"LoRa: '半包'情况,需要 {total_packet_len} 字节,但缓冲区只有 {len(self._rx_buffer)} 字节。等待更多数据...")
 | 
			
		||||
                return None  # "半包"情况,等待更多数据
 | 
			
		||||
 | 
			
		||||
            # 3. 提取和解析一个完整的物理包
 | 
			
		||||
            log(f"LoRa: 发现完整物理包 (长度 {total_packet_len}),正在提取...")
 | 
			
		||||
            packet = self._rx_buffer[:total_packet_len]
 | 
			
		||||
            self._rx_buffer = self._rx_buffer[total_packet_len:]
 | 
			
		||||
            log(f"LoRa: 提取的包: {packet.hex()}。剩余缓冲区 (长度 {len(self._rx_buffer)}): {self._rx_buffer.hex()}")
 | 
			
		||||
 | 
			
		||||
            # --- 包结构解析 ---
 | 
			
		||||
            if len(packet) < 8:
 | 
			
		||||
                log(f"LoRa: 包长度 {len(packet)} 小于协议最小长度8, 判定为坏包,已丢弃。")
 | 
			
		||||
                continue
 | 
			
		||||
 | 
			
		||||
            addr = int.from_bytes(packet[2:4], 'big')
 | 
			
		||||
            total_chunks = packet[4]
 | 
			
		||||
            current_chunk = packet[5]
 | 
			
		||||
            # 提取数据块
 | 
			
		||||
            chunk_data = packet[6:]
 | 
			
		||||
            source_addr = int.from_bytes(packet[-2:], 'big')
 | 
			
		||||
            log(f"LoRa: 解析包: 源地址={source_addr}, 目标地址={addr}, 总分片={total_chunks}, 当前分片={current_chunk}, 数据块长度={len(chunk_data)}")
 | 
			
		||||
 | 
			
		||||
            # 4. 重组逻辑
 | 
			
		||||
            if total_chunks == 1:
 | 
			
		||||
                log(f"LoRa: 收到单包消息,来自地址 {source_addr},长度 {len(chunk_data)}")
 | 
			
		||||
                self._reassembly_cache.clear()
 | 
			
		||||
                self._expected_chunks = 0
 | 
			
		||||
                return chunk_data
 | 
			
		||||
 | 
			
		||||
            # 对于多包消息,只有当收到第一个分片时才清空缓存并设置期望分片数
 | 
			
		||||
            if current_chunk == 0:
 | 
			
		||||
                log(f"LoRa: 开始接收新的多包会话 ({total_chunks}个分片) from {source_addr}...")
 | 
			
		||||
                self._reassembly_cache.clear()
 | 
			
		||||
                self._expected_chunks = total_chunks
 | 
			
		||||
            elif not self._reassembly_cache and self._expected_chunks == 0:
 | 
			
		||||
                # 如果不是第一个分片,但缓存是空的,说明错过了第一个分片,丢弃当前分片
 | 
			
		||||
                log(f"LoRa: 收到非首个分片 {current_chunk} from {source_addr},但未检测到会话开始,已丢弃。")
 | 
			
		||||
                continue
 | 
			
		||||
 | 
			
		||||
            self._reassembly_cache[current_chunk] = chunk_data
 | 
			
		||||
            log(f"LoRa: 收到分片 {current_chunk + 1}/{self._expected_chunks} from {source_addr},已缓存 {len(self._reassembly_cache)} 个")
 | 
			
		||||
 | 
			
		||||
            if len(self._reassembly_cache) == self._expected_chunks:
 | 
			
		||||
                log(f"LoRa: 所有分片已集齐 (from {source_addr}),正在重组...")
 | 
			
		||||
                full_payload = bytearray()
 | 
			
		||||
                for i in range(self._expected_chunks):
 | 
			
		||||
                    if i not in self._reassembly_cache:
 | 
			
		||||
                        log(f"LoRa: 重组失败!缺少分片 {i}。")
 | 
			
		||||
                        self._reassembly_cache.clear()
 | 
			
		||||
                        self._expected_chunks = 0
 | 
			
		||||
                        return None
 | 
			
		||||
                    full_payload.extend(self._reassembly_cache[i])
 | 
			
		||||
 | 
			
		||||
                log(f"LoRa: 重组完成,总长度 {len(full_payload)}")
 | 
			
		||||
                self._reassembly_cache.clear()
 | 
			
		||||
                self._expected_chunks = 0
 | 
			
		||||
                return bytes(full_payload)
 | 
			
		||||
 | 
			
		||||
        # while 循环结束,意味着缓冲区被处理完毕但没有返回一个完整的包
 | 
			
		||||
        return None
 | 
			
		||||
							
								
								
									
										117
									
								
								app/processor.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										117
									
								
								app/processor.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,117 @@
 | 
			
		||||
#!/usr/bin/env python
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
核心业务逻辑处理器 (V3 - 面向业务接口)
 | 
			
		||||
 | 
			
		||||
职责:
 | 
			
		||||
- 编排业务流程:解码指令,并将业务任务分发给相应的管理器。
 | 
			
		||||
- 完全不关心总线通信和数据解析的技术实现细节。
 | 
			
		||||
"""
 | 
			
		||||
from app.lora.lora_mesh_uart_passthrough_manager import LoRaMeshUartPassthroughManager
 | 
			
		||||
from app.bus.rs485_manager import RS485Manager
 | 
			
		||||
# 导入Protobuf解析代码
 | 
			
		||||
from app.proto import client_pb
 | 
			
		||||
 | 
			
		||||
from app.logs.logger import log
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
class Processor:
 | 
			
		||||
    """
 | 
			
		||||
    命令处理器类,项目的“大脑”。
 | 
			
		||||
    它依赖于抽象的、面向业务的接口。
 | 
			
		||||
    """
 | 
			
		||||
 | 
			
		||||
    def __init__(self, lora_handler: LoRaMeshUartPassthroughManager, bus_manager: RS485Manager):
 | 
			
		||||
        """
 | 
			
		||||
        构造函数 (依赖注入)。
 | 
			
		||||
        
 | 
			
		||||
        Args:
 | 
			
		||||
            lora_handler (ILoraManager): 一个实现了LoRa接口的对象。
 | 
			
		||||
            bus_manager (IBusManager): 一个实现了总线接口的对象。
 | 
			
		||||
        """
 | 
			
		||||
        self.lora = lora_handler
 | 
			
		||||
        self.bus = bus_manager
 | 
			
		||||
        log("业务处理器已初始化,准备就绪。")
 | 
			
		||||
 | 
			
		||||
    def handle_packet(self, packet_bytes: bytes):
 | 
			
		||||
        """
 | 
			
		||||
        处理单个LoRa数据包的入口函数。
 | 
			
		||||
        """
 | 
			
		||||
        log(f"收到待处理数据包: {packet_bytes.hex()}")
 | 
			
		||||
 | 
			
		||||
        try:
 | 
			
		||||
            instruction = client_pb.decode_instruction(packet_bytes)
 | 
			
		||||
            log(f"解析指令成功: {instruction}")
 | 
			
		||||
        except Exception as e:
 | 
			
		||||
            log(f"错误:解码指令失败: {e}")
 | 
			
		||||
            return
 | 
			
		||||
 | 
			
		||||
        # 根据指令类型,分发到不同的业务处理方法
 | 
			
		||||
        if 'raw_485_command' in instruction:
 | 
			
		||||
            cmd = instruction['raw_485_command']
 | 
			
		||||
            if cmd:
 | 
			
		||||
                self._process_exec_command(cmd)
 | 
			
		||||
            else:
 | 
			
		||||
                log("警告:'raw_485_command' 指令内容为空。")
 | 
			
		||||
 | 
			
		||||
        elif 'batch_collect_command' in instruction:
 | 
			
		||||
            cmd = instruction['batch_collect_command']
 | 
			
		||||
            if cmd:
 | 
			
		||||
                self._process_collect_command(cmd)
 | 
			
		||||
            else:
 | 
			
		||||
                log("警告:'batch_collect_command' 指令内容为空。")
 | 
			
		||||
 | 
			
		||||
        else:
 | 
			
		||||
            log(f"警告:收到未知或不适用于此设备的指令类型: {instruction}")
 | 
			
		||||
 | 
			
		||||
    def _process_exec_command(self, cmd: dict):
 | 
			
		||||
        """
 | 
			
		||||
        处理“执行命令”业务。
 | 
			
		||||
        """
 | 
			
		||||
        bus_id = cmd['bus_number']
 | 
			
		||||
        command_bytes = cmd['command_bytes']
 | 
			
		||||
        log(f"处理[执行命令]业务:向总线 {bus_id} 下发指令。")
 | 
			
		||||
 | 
			
		||||
        # 直接调用总线接口的业务方法,不关心实现
 | 
			
		||||
        self.bus.execute_raw_command(bus_id, command_bytes)
 | 
			
		||||
        log("执行指令已下发。")
 | 
			
		||||
 | 
			
		||||
    def _process_collect_command(self, cmd: dict):
 | 
			
		||||
        """
 | 
			
		||||
        处理“采集命令”业务。
 | 
			
		||||
        """
 | 
			
		||||
        correlation_id = cmd['correlation_id']
 | 
			
		||||
        tasks = cmd['tasks']
 | 
			
		||||
        log(f"处理[采集命令]业务 (ID: {correlation_id}):共 {len(tasks)} 个任务。")
 | 
			
		||||
 | 
			
		||||
        sensor_values = []
 | 
			
		||||
        for i, task in enumerate(tasks):
 | 
			
		||||
            log(f"  - 执行任务 {i + 1}...")
 | 
			
		||||
 | 
			
		||||
            # 调用总线接口的业务方法,直接获取最终结果
 | 
			
		||||
            # 我们不再关心task的具体内容,也不关心解析过程
 | 
			
		||||
            value = self.bus.execute_collect_task(task)
 | 
			
		||||
 | 
			
		||||
            if value is not None:
 | 
			
		||||
                sensor_values.append(value)
 | 
			
		||||
                log(f"    => 成功,获取值为: {value}")
 | 
			
		||||
            else:
 | 
			
		||||
                # 如果返回None,表示任务失败(超时或解析错误)
 | 
			
		||||
                sensor_values.append(float('nan'))  # 使用NaN表示无效值
 | 
			
		||||
                log("    => 失败,任务未返回有效值。")
 | 
			
		||||
 | 
			
		||||
        # 所有任务执行完毕,构建并发送响应
 | 
			
		||||
        log(f"所有采集任务完成,准备发送响应。采集到的值: {sensor_values}")
 | 
			
		||||
        try:
 | 
			
		||||
            response_payload = {
 | 
			
		||||
                'correlation_id': correlation_id,
 | 
			
		||||
                'values': sensor_values
 | 
			
		||||
            }
 | 
			
		||||
            response_packet = client_pb.encode_instruction('collect_result', response_payload)
 | 
			
		||||
 | 
			
		||||
            # 通过LoRa接口发送出去
 | 
			
		||||
            self.lora.send_packet(response_packet)
 | 
			
		||||
            log("采集结果已通过LoRa发送。")
 | 
			
		||||
        except Exception as e:
 | 
			
		||||
            log(f"错误:编码或发送采集结果失败: {e}")
 | 
			
		||||
							
								
								
									
										51
									
								
								app/proto/client.proto
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										51
									
								
								app/proto/client.proto
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,51 @@
 | 
			
		||||
syntax = "proto3";
 | 
			
		||||
 | 
			
		||||
package device;
 | 
			
		||||
 | 
			
		||||
// import "google/protobuf/any.proto"; // REMOVED: Not suitable for embedded systems.
 | 
			
		||||
 | 
			
		||||
option go_package = "internal/domain/device/proto";
 | 
			
		||||
 | 
			
		||||
// --- Concrete Command & Data Structures ---
 | 
			
		||||
 | 
			
		||||
// 平台生成的原始485指令,单片机直接发送到总线
 | 
			
		||||
message Raw485Command {
 | 
			
		||||
    int32 bus_number = 1;    // 总线号,用于指示单片机将指令发送到哪个总线
 | 
			
		||||
    bytes command_bytes = 2; // 原始485指令的字节数组
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// BatchCollectCommand
 | 
			
		||||
// 一个完整的、包含所有元数据的批量采集任务。
 | 
			
		||||
message BatchCollectCommand {
 | 
			
		||||
  string correlation_id = 1;        // 用于关联请求和响应的唯一ID
 | 
			
		||||
  repeated CollectTask tasks = 2;   // 采集任务列表
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// CollectTask
 | 
			
		||||
// 定义了单个采集任务的“意图”。
 | 
			
		||||
message CollectTask {
 | 
			
		||||
    Raw485Command command = 1; // 平台生成的原始485指令
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// CollectResult
 | 
			
		||||
// 这是设备响应的、极致精简的数据包。
 | 
			
		||||
message CollectResult {
 | 
			
		||||
    string correlation_id = 1;   // 从下行指令中原样返回的关联ID
 | 
			
		||||
    repeated float values = 2;   // 按预定顺序排列的采集值
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
// --- Main Downlink Instruction Wrapper ---
 | 
			
		||||
 | 
			
		||||
// 指令 (所有从平台下发到设备的数据都应该被包装在这里面)
 | 
			
		||||
// 使用 oneof 来替代 google.protobuf.Any,这是嵌入式环境下的标准做法。
 | 
			
		||||
// 它高效、类型安全,且只解码一次。
 | 
			
		||||
message Instruction {
 | 
			
		||||
    oneof payload {
 | 
			
		||||
        Raw485Command raw_485_command = 1;
 | 
			
		||||
        BatchCollectCommand batch_collect_command = 2;
 | 
			
		||||
        CollectResult collect_result = 3; // ADDED:用于上行数据
 | 
			
		||||
    // 如果未来有其他指令类型,比如开关控制,可以直接在这里添加
 | 
			
		||||
    // SwitchCommand switch_command = 3;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
							
								
								
									
										305
									
								
								app/proto/client_pb.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										305
									
								
								app/proto/client_pb.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,305 @@
 | 
			
		||||
#!/usr/bin/env python
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
根据client.proto生成的解析代码 (V2 - 已修复解码逻辑)
 | 
			
		||||
适用于ESP32 MicroPython环境
 | 
			
		||||
"""
 | 
			
		||||
 | 
			
		||||
import struct
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
# --- Protobuf基础类型辅助函数 ---
 | 
			
		||||
 | 
			
		||||
def encode_varint(value):
 | 
			
		||||
    buf = bytearray()
 | 
			
		||||
    while value >= 0x80:
 | 
			
		||||
        buf.append((value & 0x7F) | 0x80)
 | 
			
		||||
        value >>= 7
 | 
			
		||||
    buf.append(value & 0x7F)
 | 
			
		||||
    return buf
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def decode_varint(buf, pos=0):
 | 
			
		||||
    result = 0
 | 
			
		||||
    shift = 0
 | 
			
		||||
    while pos < len(buf):
 | 
			
		||||
        byte = buf[pos]
 | 
			
		||||
        pos += 1
 | 
			
		||||
        result |= (byte & 0x7F) << shift
 | 
			
		||||
        if not (byte & 0x80):
 | 
			
		||||
            break
 | 
			
		||||
        shift += 7
 | 
			
		||||
    return result, pos
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def encode_string(value):
 | 
			
		||||
    value_bytes = value.encode('utf-8')
 | 
			
		||||
    length = encode_varint(len(value_bytes))
 | 
			
		||||
    return length + value_bytes
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def decode_string(buf, pos=0):
 | 
			
		||||
    """解码字符串 (已修复)"""
 | 
			
		||||
    length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
    end_pos = pos_after_len + length
 | 
			
		||||
    value = buf[pos_after_len:end_pos].decode('utf-8')
 | 
			
		||||
    return value, end_pos
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
# --- 消息编码/解码函数 ---
 | 
			
		||||
 | 
			
		||||
def encode_raw_485_command(bus_number, command_bytes):
 | 
			
		||||
    result = bytearray()
 | 
			
		||||
    result.extend(encode_varint((1 << 3) | 0))
 | 
			
		||||
    result.extend(encode_varint(bus_number))
 | 
			
		||||
    result.extend(encode_varint((2 << 3) | 2))
 | 
			
		||||
    result.extend(encode_varint(len(command_bytes)))
 | 
			
		||||
    result.extend(command_bytes)
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def decode_raw_485_command(buf):
 | 
			
		||||
    """解码Raw485Command消息 (已修复)"""
 | 
			
		||||
    result = {}
 | 
			
		||||
    pos = 0
 | 
			
		||||
    while pos < len(buf):
 | 
			
		||||
        tag, pos = decode_varint(buf, pos)
 | 
			
		||||
        field_number = tag >> 3
 | 
			
		||||
        wire_type = tag & 0x07
 | 
			
		||||
 | 
			
		||||
        if field_number == 1:  # bus_number
 | 
			
		||||
            value, pos = decode_varint(buf, pos)
 | 
			
		||||
            result['bus_number'] = value
 | 
			
		||||
        elif field_number == 2:  # command_bytes
 | 
			
		||||
            length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
            end_pos = pos_after_len + length
 | 
			
		||||
            result['command_bytes'] = buf[pos_after_len:end_pos]
 | 
			
		||||
            pos = end_pos
 | 
			
		||||
        else:
 | 
			
		||||
            # 跳过未知字段
 | 
			
		||||
            if wire_type == 0:
 | 
			
		||||
                _, pos = decode_varint(buf, pos)
 | 
			
		||||
            elif wire_type == 2:
 | 
			
		||||
                length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
                pos = pos_after_len + length
 | 
			
		||||
            elif wire_type == 5:
 | 
			
		||||
                pos += 4
 | 
			
		||||
            else:
 | 
			
		||||
                pos += 1
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def encode_collect_task(command_msg):
 | 
			
		||||
    result = bytearray()
 | 
			
		||||
    encoded_command = encode_raw_485_command(command_msg['bus_number'], command_msg['command_bytes'])
 | 
			
		||||
    result.extend(encode_varint((1 << 3) | 2))
 | 
			
		||||
    result.extend(encode_varint(len(encoded_command)))
 | 
			
		||||
    result.extend(encoded_command)
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def decode_collect_task(buf):
 | 
			
		||||
    """解码CollectTask消息 (已修复)"""
 | 
			
		||||
    result = {}
 | 
			
		||||
    pos = 0
 | 
			
		||||
    while pos < len(buf):
 | 
			
		||||
        tag, pos = decode_varint(buf, pos)
 | 
			
		||||
        field_number = tag >> 3
 | 
			
		||||
        wire_type = tag & 0x07
 | 
			
		||||
 | 
			
		||||
        if field_number == 1:  # command
 | 
			
		||||
            length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
            end_pos = pos_after_len + length
 | 
			
		||||
            value_buf = buf[pos_after_len:end_pos]
 | 
			
		||||
            result['command'] = decode_raw_485_command(value_buf)
 | 
			
		||||
            pos = end_pos
 | 
			
		||||
        else:
 | 
			
		||||
            if wire_type == 0:
 | 
			
		||||
                _, pos = decode_varint(buf, pos)
 | 
			
		||||
            elif wire_type == 2:
 | 
			
		||||
                length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
                pos = pos_after_len + length
 | 
			
		||||
            elif wire_type == 5:
 | 
			
		||||
                pos += 4
 | 
			
		||||
            else:
 | 
			
		||||
                pos += 1
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def encode_batch_collect_command(correlation_id, tasks):
 | 
			
		||||
    result = bytearray()
 | 
			
		||||
    result.extend(encode_varint((1 << 3) | 2))
 | 
			
		||||
    result.extend(encode_string(correlation_id))
 | 
			
		||||
    for task in tasks:
 | 
			
		||||
        encoded_task = encode_collect_task(task['command'])
 | 
			
		||||
        result.extend(encode_varint((2 << 3) | 2))
 | 
			
		||||
        result.extend(encode_varint(len(encoded_task)))
 | 
			
		||||
        result.extend(encoded_task)
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def decode_batch_collect_command(buf):
 | 
			
		||||
    """解码BatchCollectCommand消息 (已修复)"""
 | 
			
		||||
    result = {'tasks': []}
 | 
			
		||||
    pos = 0
 | 
			
		||||
    while pos < len(buf):
 | 
			
		||||
        tag, pos = decode_varint(buf, pos)
 | 
			
		||||
        field_number = tag >> 3
 | 
			
		||||
        wire_type = tag & 0x07
 | 
			
		||||
 | 
			
		||||
        if field_number == 1:  # correlation_id
 | 
			
		||||
            value, pos = decode_string(buf, pos)
 | 
			
		||||
            result['correlation_id'] = value
 | 
			
		||||
        elif field_number == 2:  # tasks (repeated)
 | 
			
		||||
            length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
            end_pos = pos_after_len + length
 | 
			
		||||
            value_buf = buf[pos_after_len:end_pos]
 | 
			
		||||
            result['tasks'].append(decode_collect_task(value_buf))
 | 
			
		||||
            pos = end_pos
 | 
			
		||||
        else:
 | 
			
		||||
            if wire_type == 0:
 | 
			
		||||
                _, pos = decode_varint(buf, pos)
 | 
			
		||||
            elif wire_type == 2:
 | 
			
		||||
                length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
                pos = pos_after_len + length
 | 
			
		||||
            elif wire_type == 5:
 | 
			
		||||
                pos += 4
 | 
			
		||||
            else:
 | 
			
		||||
                pos += 1
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def encode_collect_result(correlation_id, values):
 | 
			
		||||
    result = bytearray()
 | 
			
		||||
    result.extend(encode_varint((1 << 3) | 2))
 | 
			
		||||
    result.extend(encode_string(correlation_id))
 | 
			
		||||
    for value in values:
 | 
			
		||||
        result.extend(encode_varint((2 << 3) | 5))
 | 
			
		||||
        result.extend(struct.pack('<f', value))
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def decode_collect_result(buf):
 | 
			
		||||
    """解码CollectResult消息 (已修复)"""
 | 
			
		||||
    result = {'values': []}
 | 
			
		||||
    pos = 0
 | 
			
		||||
    while pos < len(buf):
 | 
			
		||||
        tag, pos = decode_varint(buf, pos)
 | 
			
		||||
        field_number = tag >> 3
 | 
			
		||||
        wire_type = tag & 0x07
 | 
			
		||||
 | 
			
		||||
        if field_number == 1:  # correlation_id
 | 
			
		||||
            value, pos = decode_string(buf, pos)
 | 
			
		||||
            result['correlation_id'] = value
 | 
			
		||||
        elif field_number == 2:  # values (repeated)
 | 
			
		||||
            if wire_type == 5:  # fixed32
 | 
			
		||||
                value = struct.unpack('<f', buf[pos:pos + 4])[0]
 | 
			
		||||
                pos += 4
 | 
			
		||||
                result['values'].append(value)
 | 
			
		||||
        else:
 | 
			
		||||
            if wire_type == 0:
 | 
			
		||||
                _, pos = decode_varint(buf, pos)
 | 
			
		||||
            elif wire_type == 2:
 | 
			
		||||
                length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
                pos = pos_after_len + length
 | 
			
		||||
            elif wire_type == 5:
 | 
			
		||||
                pos += 4
 | 
			
		||||
            else:
 | 
			
		||||
                pos += 1
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def encode_instruction(payload_type, payload_data):
 | 
			
		||||
    result = bytearray()
 | 
			
		||||
    encoded_payload = bytearray()
 | 
			
		||||
 | 
			
		||||
    if payload_type == 'raw_485_command':
 | 
			
		||||
        encoded_payload = encode_raw_485_command(payload_data['bus_number'], payload_data['command_bytes'])
 | 
			
		||||
        result.extend(encode_varint((1 << 3) | 2))
 | 
			
		||||
    elif payload_type == 'batch_collect_command':
 | 
			
		||||
        encoded_payload = encode_batch_collect_command(payload_data['correlation_id'], payload_data['tasks'])
 | 
			
		||||
        result.extend(encode_varint((2 << 3) | 2))
 | 
			
		||||
    elif payload_type == 'collect_result':
 | 
			
		||||
        encoded_payload = encode_collect_result(payload_data['correlation_id'], payload_data['values'])
 | 
			
		||||
        result.extend(encode_varint((3 << 3) | 2))
 | 
			
		||||
    else:
 | 
			
		||||
        raise ValueError("未知的指令负载类型")
 | 
			
		||||
 | 
			
		||||
    result.extend(encode_varint(len(encoded_payload)))
 | 
			
		||||
    result.extend(encoded_payload)
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def decode_instruction(buf):
 | 
			
		||||
    """解码Instruction消息 (已修复)"""
 | 
			
		||||
    result = {}
 | 
			
		||||
    pos = 0
 | 
			
		||||
    while pos < len(buf):
 | 
			
		||||
        tag, pos = decode_varint(buf, pos)
 | 
			
		||||
        field_number = tag >> 3
 | 
			
		||||
        wire_type = tag & 0x07
 | 
			
		||||
 | 
			
		||||
        if wire_type == 2:
 | 
			
		||||
            length, pos_after_len = decode_varint(buf, pos)
 | 
			
		||||
            end_pos = pos_after_len + length
 | 
			
		||||
            value_buf = buf[pos_after_len:end_pos]
 | 
			
		||||
 | 
			
		||||
            if field_number == 1:
 | 
			
		||||
                result['raw_485_command'] = decode_raw_485_command(value_buf)
 | 
			
		||||
            elif field_number == 2:
 | 
			
		||||
                result['batch_collect_command'] = decode_batch_collect_command(value_buf)
 | 
			
		||||
            elif field_number == 3:
 | 
			
		||||
                result['collect_result'] = decode_collect_result(value_buf)
 | 
			
		||||
            
 | 
			
		||||
            pos = end_pos
 | 
			
		||||
        else:
 | 
			
		||||
            if wire_type == 0:
 | 
			
		||||
                _, pos = decode_varint(buf, pos)
 | 
			
		||||
            elif wire_type == 5:
 | 
			
		||||
                pos += 4
 | 
			
		||||
            else:
 | 
			
		||||
                pos += 1
 | 
			
		||||
    return result
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
# --- 单元测试与使用范例 ---
 | 
			
		||||
if __name__ == "__main__":
 | 
			
		||||
    print("--- 测试 Raw485Command ---")
 | 
			
		||||
    raw_cmd_data = {'bus_number': 1, 'command_bytes': b'\x01\x03\x00\x00\x00\x02\xc4\x0b'}
 | 
			
		||||
    encoded_raw_cmd = encode_raw_485_command(raw_cmd_data['bus_number'], raw_cmd_data['command_bytes'])
 | 
			
		||||
    decoded_raw_cmd = decode_raw_485_command(encoded_raw_cmd)
 | 
			
		||||
    assert decoded_raw_cmd == raw_cmd_data, f"Expected {raw_cmd_data}, got {decoded_raw_cmd}"
 | 
			
		||||
 | 
			
		||||
    print("\n--- 测试 CollectTask ---")
 | 
			
		||||
    collect_task_data = {'command': raw_cmd_data}
 | 
			
		||||
    encoded_collect_task = encode_collect_task(collect_task_data['command'])
 | 
			
		||||
    decoded_collect_task = decode_collect_task(encoded_collect_task)
 | 
			
		||||
    assert decoded_collect_task == collect_task_data, f"Expected {collect_task_data}, got {decoded_collect_task}"
 | 
			
		||||
 | 
			
		||||
    print("\n--- 测试 BatchCollectCommand ---")
 | 
			
		||||
    batch_collect_data = {
 | 
			
		||||
        'correlation_id': 'abc-123',
 | 
			
		||||
        'tasks': [
 | 
			
		||||
            {'command': {'bus_number': 1, 'command_bytes': b'\x01\x04\x00\x01\x00\x01\x60\x0a'}},
 | 
			
		||||
            {'command': {'bus_number': 2, 'command_bytes': b'\x02\x03\x00\x01\x00\x01\xd5\xfa'}}
 | 
			
		||||
        ]
 | 
			
		||||
    }
 | 
			
		||||
    encoded_batch_collect = encode_batch_collect_command(batch_collect_data['correlation_id'], batch_collect_data['tasks'])
 | 
			
		||||
    decoded_batch_collect = decode_batch_collect_command(encoded_batch_collect)
 | 
			
		||||
    assert decoded_batch_collect == batch_collect_data, f"Expected {batch_collect_data}, got {decoded_batch_collect}"
 | 
			
		||||
 | 
			
		||||
    print("\n--- 测试 CollectResult ---")
 | 
			
		||||
    collect_result_data = {'correlation_id': 'res-456', 'values': [12.34, 56.78]}
 | 
			
		||||
    encoded_collect_result = encode_collect_result(collect_result_data['correlation_id'], collect_result_data['values'])
 | 
			
		||||
    decoded_collect_result = decode_collect_result(encoded_collect_result)
 | 
			
		||||
    assert decoded_collect_result['correlation_id'] == collect_result_data['correlation_id']
 | 
			
		||||
    for i in range(len(collect_result_data['values'])):
 | 
			
		||||
        assert abs(decoded_collect_result['values'][i] - collect_result_data['values'][i]) < 1e-5
 | 
			
		||||
 | 
			
		||||
    print("\n--- 测试 Instruction (内含BatchCollectCommand) ---")
 | 
			
		||||
    instruction_batch_collect = encode_instruction('batch_collect_command', batch_collect_data)
 | 
			
		||||
    decoded_instruction_batch_collect = decode_instruction(instruction_batch_collect)
 | 
			
		||||
    assert decoded_instruction_batch_collect == {'batch_collect_command': batch_collect_data}
 | 
			
		||||
 | 
			
		||||
    print("\n所有测试均已通过!")
 | 
			
		||||
							
								
								
									
										81
									
								
								app/uqueue.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										81
									
								
								app/uqueue.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,81 @@
 | 
			
		||||
#!/usr/bin/env python
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
一个适用于MicroPython的、简单的线程安全队列实现。
 | 
			
		||||
 | 
			
		||||
这个模块提供了一个与标准库 `queue.Queue` 类似的类,
 | 
			
		||||
确保在多线程环境下的数据操作是安全的。
 | 
			
		||||
"""
 | 
			
		||||
 | 
			
		||||
import _thread
 | 
			
		||||
from collections import deque
 | 
			
		||||
 | 
			
		||||
class Queue:
 | 
			
		||||
    """一个简单的、线程安全的队列。"""
 | 
			
		||||
 | 
			
		||||
    def __init__(self, maxsize=0):
 | 
			
		||||
        self.maxsize = maxsize
 | 
			
		||||
        self._lock = _thread.allocate_lock()
 | 
			
		||||
        # 使用deque可以实现更高效的头部弹出操作 (O(1))
 | 
			
		||||
        self._items = deque((), maxsize if maxsize > 0 else 1024)
 | 
			
		||||
 | 
			
		||||
    def qsize(self):
 | 
			
		||||
        """返回队列中的项目数。"""
 | 
			
		||||
        with self._lock:
 | 
			
		||||
            return len(self._items)
 | 
			
		||||
 | 
			
		||||
    def empty(self):
 | 
			
		||||
        """如果队列为空,返回True,否则返回False。"""
 | 
			
		||||
        return self.qsize() == 0
 | 
			
		||||
 | 
			
		||||
    def full(self):
 | 
			
		||||
        """如果队列已满,返回True,否则返回False。"""
 | 
			
		||||
        if self.maxsize <= 0:
 | 
			
		||||
            return False
 | 
			
		||||
        return self.qsize() >= self.maxsize
 | 
			
		||||
 | 
			
		||||
    def put(self, item, block=True, timeout=None):
 | 
			
		||||
        """将一个项目放入队列。"""
 | 
			
		||||
        if not block:
 | 
			
		||||
            return self.put_nowait(item)
 | 
			
		||||
        
 | 
			
		||||
        # 阻塞式put的简单实现 (在实际应用中更复杂的实现会使用信号量)
 | 
			
		||||
        while True:
 | 
			
		||||
            with self._lock:
 | 
			
		||||
                if not self.full():
 | 
			
		||||
                    self._items.append(item)
 | 
			
		||||
                    return
 | 
			
		||||
            # 如果队列是满的,短暂休眠后重试
 | 
			
		||||
            import time
 | 
			
		||||
            time.sleep_ms(5)
 | 
			
		||||
 | 
			
		||||
    def put_nowait(self, item):
 | 
			
		||||
        """等同于 put(item, block=False)。"""
 | 
			
		||||
        if self.full():
 | 
			
		||||
            raise OSError("Queue full")
 | 
			
		||||
        
 | 
			
		||||
        with self._lock:
 | 
			
		||||
            self._items.append(item)
 | 
			
		||||
 | 
			
		||||
    def get(self, block=True, timeout=None):
 | 
			
		||||
        """从队列中移除并返回一个项目。"""
 | 
			
		||||
        if not block:
 | 
			
		||||
            return self.get_nowait()
 | 
			
		||||
 | 
			
		||||
        # 阻塞式get的简单实现
 | 
			
		||||
        while True:
 | 
			
		||||
            with self._lock:
 | 
			
		||||
                if self._items:
 | 
			
		||||
                    return self._items.popleft()
 | 
			
		||||
            # 如果队列是空的,短暂休眠后重试
 | 
			
		||||
            import time
 | 
			
		||||
            time.sleep_ms(5)
 | 
			
		||||
 | 
			
		||||
    def get_nowait(self):
 | 
			
		||||
        """等同于 get(item, block=False)。"""
 | 
			
		||||
        if self.empty():
 | 
			
		||||
            raise OSError("Queue empty")
 | 
			
		||||
            
 | 
			
		||||
        with self._lock:
 | 
			
		||||
            return self._items.popleft()
 | 
			
		||||
							
								
								
									
										44
									
								
								app/worker.py
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										44
									
								
								app/worker.py
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,44 @@
 | 
			
		||||
#!/usr/bin/env python
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
工作线程模块
 | 
			
		||||
 | 
			
		||||
职责:
 | 
			
		||||
- 作为一个独立的线程运行。
 | 
			
		||||
- 阻塞式地等待任务队列。
 | 
			
		||||
- 从队列中取出任务,并交给Processor进行耗时处理。
 | 
			
		||||
"""
 | 
			
		||||
 | 
			
		||||
from app.uqueue import Queue
 | 
			
		||||
from app.processor import Processor
 | 
			
		||||
from app.logs.logger import log
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def worker_task(task_queue: Queue, processor: Processor):
 | 
			
		||||
    """
 | 
			
		||||
    工作线程的主函数。
 | 
			
		||||
    
 | 
			
		||||
    Args:
 | 
			
		||||
        task_queue (uqueue.Queue): 共享的任务队列。
 | 
			
		||||
        processor (Processor): 业务处理器实例。
 | 
			
		||||
    """
 | 
			
		||||
    log("工作线程已启动,等待任务...")
 | 
			
		||||
 | 
			
		||||
    while True:
 | 
			
		||||
        try:
 | 
			
		||||
            # 1. 阻塞式地从队列中获取任务
 | 
			
		||||
            # 如果队列为空,程序会在这里自动挂起,不消耗CPU
 | 
			
		||||
            # get()方法是线程安全的
 | 
			
		||||
            packet_bytes = task_queue.get()
 | 
			
		||||
 | 
			
		||||
            log(f"工作线程:收到新任务,开始处理... 数据: {packet_bytes.hex()}")
 | 
			
		||||
 | 
			
		||||
            # 2. 调用processor进行耗时的、阻塞式的处理
 | 
			
		||||
            # 这个处理过程不会影响主线程的LoRa监听
 | 
			
		||||
            processor.handle_packet(packet_bytes)
 | 
			
		||||
 | 
			
		||||
            log("工作线程:任务处理完毕,继续等待下一个任务。")
 | 
			
		||||
 | 
			
		||||
        except Exception as e:
 | 
			
		||||
            log(f"错误:工作线程在处理任务时发生异常: {e}")
 | 
			
		||||
							
								
								
									
										85
									
								
								main.py
									
									
									
									
									
								
							
							
						
						
									
										85
									
								
								main.py
									
									
									
									
									
								
							@@ -2,5 +2,88 @@
 | 
			
		||||
# -*- coding: utf-8 -*-
 | 
			
		||||
 | 
			
		||||
"""
 | 
			
		||||
猪舍主控系统主程序入口
 | 
			
		||||
程序主入口 (双线程生产者-消费者模型)
 | 
			
		||||
 | 
			
		||||
主线程 (生产者):
 | 
			
		||||
- 职责:以最高优先级不间断监听LoRa数据,并将数据包放入任务队列。
 | 
			
		||||
- 特点:永远不执行耗时操作,保证LoRa数据接收的实时性。
 | 
			
		||||
 | 
			
		||||
工作线程 (消费者):
 | 
			
		||||
- 职责:从任务队列中取出数据包,并进行耗时的业务处理。
 | 
			
		||||
- 特点:可能会长时间阻塞,但不影响主线程的数据接收。
 | 
			
		||||
"""
 | 
			
		||||
 | 
			
		||||
import time
 | 
			
		||||
import _thread
 | 
			
		||||
from app.config import config
 | 
			
		||||
from app.uqueue import Queue  # 导入我们自己创建的本地uqueue模块
 | 
			
		||||
 | 
			
		||||
# 导入接口和实现
 | 
			
		||||
from app.lora.lora_mesh_uart_passthrough_manager import LoRaMeshUartPassthroughManager
 | 
			
		||||
from app.bus.rs485_manager import RS485Manager
 | 
			
		||||
from app.processor import Processor
 | 
			
		||||
 | 
			
		||||
# 导入工作线程的执行函数
 | 
			
		||||
from app.worker import worker_task
 | 
			
		||||
from app.logs.logger import log
 | 
			
		||||
 | 
			
		||||
# --- 模块级变量定义 (带有类型提示) ---
 | 
			
		||||
lora_manager: LoRaMeshUartPassthroughManager | None = None
 | 
			
		||||
bus_manager: RS485Manager | None = None
 | 
			
		||||
processor: Processor | None = None
 | 
			
		||||
task_queue: Queue | None = None
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def setup():
 | 
			
		||||
    """
 | 
			
		||||
    初始化函数,负责创建所有对象实例、共享队列,并启动工作线程。
 | 
			
		||||
    """
 | 
			
		||||
    global lora_manager, bus_manager, processor, task_queue
 | 
			
		||||
 | 
			
		||||
    log("--- 系统初始化开始 ---")
 | 
			
		||||
 | 
			
		||||
    # 1. 初始化硬件驱动和业务处理器
 | 
			
		||||
    lora_manager = LoRaMeshUartPassthroughManager(config.LORA_CONFIG)
 | 
			
		||||
    bus_manager = RS485Manager(config.BUS_CONFIG, config.DEFAULT_TIMEOUTS)
 | 
			
		||||
 | 
			
		||||
    processor = Processor(lora_handler=lora_manager, bus_manager=bus_manager)
 | 
			
		||||
 | 
			
		||||
    # 2. 从配置文件读取队列长度,并创建线程安全的队列
 | 
			
		||||
    queue_size = config.SYSTEM_PARAMS.get('task_queue_max_size', 10)
 | 
			
		||||
    task_queue = Queue(maxsize=queue_size)
 | 
			
		||||
    log(f"任务队列已创建,最大容量: {queue_size}")
 | 
			
		||||
 | 
			
		||||
    # 3. 启动工作线程
 | 
			
		||||
    _thread.start_new_thread(worker_task, (task_queue, processor))
 | 
			
		||||
 | 
			
		||||
    log("--- 系统初始化完成 ---")
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
def loop():
 | 
			
		||||
    """
 | 
			
		||||
    主线程循环函数 (生产者)。
 | 
			
		||||
    只负责监听LoRa,并将数据放入队列。
 | 
			
		||||
    """
 | 
			
		||||
    packet = lora_manager.receive_packet()
 | 
			
		||||
    if packet:
 | 
			
		||||
        log(f"主线程:收到新LoRa数据包: {packet.hex()}")
 | 
			
		||||
        if task_queue.full():
 | 
			
		||||
            log("警告:任务队列已满,新的LoRa数据包被丢弃!")
 | 
			
		||||
            return
 | 
			
		||||
 | 
			
		||||
        try:
 | 
			
		||||
            task_queue.put_nowait(packet)
 | 
			
		||||
            log(f"主线程:新LoRa数据包已入队。当前队列大小: {task_queue.qsize()}")
 | 
			
		||||
        except Exception as e:
 | 
			
		||||
            log(f"错误:数据包入队失败: {e}")
 | 
			
		||||
 | 
			
		||||
    time.sleep_ms(10)
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
# --- 程序主执行区 ---
 | 
			
		||||
if __name__ == "__main__":
 | 
			
		||||
    setup()
 | 
			
		||||
 | 
			
		||||
    log("--- 主线程进入循环 (LoRa监听) ---")
 | 
			
		||||
    while True:
 | 
			
		||||
        loop()
 | 
			
		||||
 
 | 
			
		||||
		Reference in New Issue
	
	Block a user