1198 lines
56 KiB
Python
1198 lines
56 KiB
Python
import serial
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import threading
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import time
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import logging
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import os
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import json
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from typing import Dict, Optional, Callable
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from utils.config_loader import ConfigLoader
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from utils.keyboard_listener import KeyboardListener
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from pynput.keyboard import Key
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import re
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import platform
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class SerialManager:
|
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"""串口管理器，单例模式"""
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_instance = None
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_lock = threading.Lock()
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def __new__(cls):
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with cls._lock:
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if cls._instance is None:
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cls._instance = super(SerialManager, cls).__new__(cls)
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cls._instance._initialized = False
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return cls._instance
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||
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def __init__(self):
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if self._initialized:
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return
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||
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self._initialized = True
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||
self.serial_ports: Dict[str, serial.Serial] = {} # 存储打开的串口对象
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self.read_threads: Dict[str, threading.Thread] = {} # 存储读取线程
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self.running_flags: Dict[str, bool] = {} # 存储线程运行标志
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self.callbacks: Dict[str, Callable] = {} # 存储数据回调函数
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# 添加文件操作暂停控制
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self._file_operations_suspended = False
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self._file_operations_lock = threading.Lock()
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||
|
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# 添加称重稳定性检测变量
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self.last_weight = 0
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self.stable_count = 0
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self.weight_written = False # 初始化为False，确保首次称重能够正确处理
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||
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# 添加抗抖动变量
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||
self.last_weights = [0] * 3 # 存储最近3个重量值
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self.weight_changed_time = time.time() # 上次重量变化的时间
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self.last_write_time = 0 # 最后写入时间
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||
|
||
# 稳定性时间跟踪
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self.stability_start_time = 0 # 开始检测稳定性的时间
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||
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||
# 数据存储
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||
self.data = {
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||
'mdz': 0,
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||
'xj': 0, # 添加线径数据
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||
'cz': 0,
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||
'scanner': '' # 添加扫码器数据
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||
}
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||
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||
# 是否自动查询米电阻数据，默认为False，只通过PageUp键触发
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self.auto_query_mdz = False
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logging.info("初始化 SerialManager")
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# 加载配置
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self._load_config()
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||
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# 检查是否启用键盘监听功能
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enable_keyboard_listener = self.config.get_value('app.features.enable_keyboard_listener', False)
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if enable_keyboard_listener:
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try:
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# 初始化键盘监听器
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self.keyboard_listener = KeyboardListener()
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# 从配置中获取触发键
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trigger_key = self.config.get_value('serial.keyboard.trigger_key', 'Key.page_up')
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# 注册触发键回调
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self.keyboard_listener.register_callback(trigger_key, self.trigger_resistance_query)
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logging.info(f"已注册{trigger_key}按键回调用于触发米电阻查询")
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# 注意：不在这里启动键盘监听器，而是在点击"开始"按钮时启动
|
||
except Exception as e:
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||
logging.error(f"初始化键盘监听器失败: {e}")
|
||
# 创建一个空的键盘监听器对象，以避免后续代码出现NoneType错误
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self.keyboard_listener = None
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else:
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logging.info("键盘监听功能已在配置中禁用，跳过初始化键盘监听器")
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self.keyboard_listener = None
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def _load_config(self):
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"""加载配置"""
|
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try:
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config_loader = ConfigLoader.get_instance() # Renamed for clarity
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self.config = config_loader # Assign the whole config object
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# 获取数据文件路径
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self.data_file = self.config.get_value('serial.data_file', 'data.txt')
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# 确保是绝对路径
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if not os.path.isabs(self.data_file):
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self.data_file = os.path.abspath(self.data_file)
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logging.info(f"最终确定的 data_file 绝对路径: {self.data_file}")
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# 获取串口配置
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self.mdz_config = self.config.get_config('mdz')
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self.cz_config = self.config.get_config('cz')
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self.xj_config = self.config.get_config('xj') # 添加线径配置
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self.scanner_config = self.config.get_config('scanner') # 添加扫码器配置
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# 检查操作系统类型，在macOS上处理COM端口名称问题
|
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os_type = platform.system()
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||
if os_type == "Darwin":
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||
# 检查是否需要自动检测macOS上的串口
|
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macos_autodetect = self.config.get_value('serial.os_config.macos_autodetect', False)
|
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if macos_autodetect:
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logging.info("在macOS上启用了串口自动检测")
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||
self._detect_macos_ports()
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||
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# 获取默认的稳定阈值
|
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self.stable_threshold = self.cz_config.get('stable_threshold', 10) if self.cz_config else 10
|
||
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# 检查是否自动查询米电阻数据
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self.auto_query_mdz = self.config.get_value('serial.keyboard.auto_query', False)
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logging.info(f"已加载串口配置：mdz={self.mdz_config}, xj={self.xj_config}, cz={self.cz_config}, scanner={self.scanner_config}, data_file={self.data_file}")
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logging.info(f"米电阻自动查询: {'开启' if self.auto_query_mdz else '关闭'}")
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except Exception as e:
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logging.error(f"加载配置出错: {e}")
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# 设置默认值
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self.data_file = os.path.abspath('data.txt')
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self.mdz_config = {'port': 9600, 'ser': 'COM5'}
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self.cz_config = {'port': 9600, 'ser': 'COM2', 'stable_threshold': 10}
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self.xj_config = {'port': 9600, 'ser': 'COM3'}
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self.scanner_config = {'port': 9600, 'ser': 'COM4'}
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self.stable_threshold = 10
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self.auto_query_mdz = False
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logging.info(f"使用默认配置，数据文件: {self.data_file}")
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||
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def _detect_macos_ports(self):
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"""在macOS上检测可用的串口"""
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try:
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if platform.system() != "Darwin":
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logging.info("不是macOS系统，跳过串口检测")
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||
return
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logging.info("正在检测macOS可用串口...")
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||
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||
# 检查/dev目录下的tty.*和cu.*设备
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import glob
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tty_ports = glob.glob('/dev/tty.*')
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cu_ports = glob.glob('/dev/cu.*')
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all_ports = tty_ports + cu_ports
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||
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if not all_ports:
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logging.warning("未检测到macOS上的串口设备")
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return
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||
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||
logging.info(f"检测到以下串口设备: {all_ports}")
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# 如果mdz_config中的串口是COM格式，尝试替换为检测到的第一个串口
|
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if self.mdz_config and 'ser' in self.mdz_config and self.mdz_config['ser'].startswith('COM'):
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# 优先选择包含"usb"的设备
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usb_ports = [port for port in all_ports if 'usb' in port.lower()]
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if usb_ports:
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||
self.mdz_config['ser'] = usb_ports[0]
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logging.info(f"自动将米电阻串口从COM格式替换为: {usb_ports[0]}")
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elif all_ports:
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self.mdz_config['ser'] = all_ports[0]
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logging.info(f"自动将米电阻串口从COM格式替换为: {all_ports[0]}")
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||
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# 如果cz_config中的串口是COM格式，尝试替换为检测到的第二个串口
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if self.cz_config and 'ser' in self.cz_config and self.cz_config['ser'].startswith('COM'):
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# 优先选择包含"usb"的设备，并且不是已分配给mdz的设备
|
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usb_ports = [port for port in all_ports if 'usb' in port.lower()
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and (not self.mdz_config or port != self.mdz_config.get('ser'))]
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if usb_ports:
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self.cz_config['ser'] = usb_ports[0]
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logging.info(f"自动将线径串口从COM格式替换为: {usb_ports[0]}")
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elif len(all_ports) > 1:
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# 选择不是mdz_config已使用的第一个端口
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||
for port in all_ports:
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if not self.mdz_config or port != self.mdz_config.get('ser'):
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self.cz_config['ser'] = port
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||
logging.info(f"自动将线径串口从COM格式替换为: {port}")
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break
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elif all_ports and (not self.mdz_config or all_ports[0] != self.mdz_config.get('ser')):
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self.cz_config['ser'] = all_ports[0]
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logging.info(f"自动将线径串口从COM格式替换为: {all_ports[0]}")
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except Exception as e:
|
||
logging.error(f"检测macOS串口时发生错误: {e}")
|
||
logging.info("将继续使用配置文件中的串口设置")
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||
|
||
def open_port(self, port_name: str, port_type: str, baud_rate: Optional[int] = None,
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||
data_bits: int = 8, stop_bits: int = 1,
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parity: str = 'N', timeout: float = 1.0,
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||
callback: Optional[Callable] = None) -> bool:
|
||
"""
|
||
打开串口
|
||
|
||
Args:
|
||
port_name: 串口名称，如COM1
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||
port_type: 串口类型，'cz'表示称重，'mdz'表示米电阻, 'xj'表示线径, 'scanner'表示扫码器
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||
baud_rate: 波特率，如果为None则从配置文件读取
|
||
data_bits: 数据位
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||
stop_bits: 停止位
|
||
parity: 校验位，'N'表示无校验，'O'表示奇校验，'E'表示偶校验
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timeout: 超时时间，单位秒
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callback: 回调函数，接收(port_name, data)作为参数
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Returns:
|
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bool: 成功返回True，失败返回False
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"""
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||
# 如果串口已经打开，先关闭
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if port_name in self.serial_ports and self.serial_ports[port_name]:
|
||
try:
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self.close_port(port_name)
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||
except Exception as e:
|
||
logging.error(f"关闭已打开的串口失败: {e}")
|
||
|
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# 配置串口参数
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try:
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# 从配置读取波特率（如果未提供）
|
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if baud_rate is None:
|
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if port_type == 'cz' and self.cz_config:
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baud_rate = self.cz_config.get('port', 9600)
|
||
elif port_type == 'mdz' and self.mdz_config:
|
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baud_rate = self.mdz_config.get('port', 9600)
|
||
elif port_type == 'xj' and self.xj_config:
|
||
baud_rate = self.xj_config.get('port', 9600)
|
||
elif port_type == 'scanner' and self.scanner_config:
|
||
baud_rate = self.scanner_config.get('port', 9600)
|
||
else:
|
||
baud_rate = 9600 # 默认波特率
|
||
|
||
# 转换校验位为PySerial常量
|
||
if parity.upper() == 'N':
|
||
parity_constant = serial.PARITY_NONE
|
||
elif parity.upper() == 'O':
|
||
parity_constant = serial.PARITY_ODD
|
||
elif parity.upper() == 'E':
|
||
parity_constant = serial.PARITY_EVEN
|
||
else:
|
||
parity_constant = serial.PARITY_NONE
|
||
|
||
# 打开串口
|
||
self.serial_ports[port_name] = serial.Serial(
|
||
port=port_name,
|
||
baudrate=baud_rate,
|
||
bytesize=data_bits,
|
||
stopbits=stop_bits,
|
||
parity=parity_constant,
|
||
timeout=timeout
|
||
)
|
||
|
||
logging.info(f"打开串口成功: {port_name}, 类型: {port_type}, 波特率: {baud_rate}")
|
||
|
||
# 设置回调
|
||
if callback:
|
||
self.callbacks[port_name] = callback
|
||
|
||
# 创建并启动读取线程
|
||
self.running_flags[port_name] = True
|
||
|
||
if port_type == 'cz':
|
||
# 称重数据需要特殊处理
|
||
thread = threading.Thread(target=self._read_weight_thread, args=(port_name, self.stable_threshold))
|
||
elif port_type == 'mdz':
|
||
# 米电阻数据需要特殊处理
|
||
thread = threading.Thread(target=self._read_resistance_thread, args=(port_name,))
|
||
elif port_type == 'xj':
|
||
# 线径数据需要特殊处理
|
||
thread = threading.Thread(target=self._read_diameter_thread, args=(port_name,))
|
||
thread.daemon = True
|
||
thread.start()
|
||
self.read_threads[port_name] = thread
|
||
elif port_type == 'scanner':
|
||
# 扫码器数据需要特殊处理
|
||
thread = threading.Thread(target=self._read_scanner_thread, args=(port_name,))
|
||
else:
|
||
# 其他类型使用通用处理
|
||
thread = threading.Thread(target=self._read_thread, args=(port_name,))
|
||
|
||
thread.daemon = True
|
||
thread.start()
|
||
self.read_threads[port_name] = thread
|
||
|
||
return True
|
||
|
||
except Exception as e:
|
||
logging.error(f"打开串口失败: {port_name}, 错误: {e}")
|
||
# 确保清理好资源
|
||
if port_name in self.serial_ports:
|
||
try:
|
||
self.serial_ports[port_name].close()
|
||
except:
|
||
pass
|
||
self.serial_ports.pop(port_name, None)
|
||
|
||
# 停止相关线程
|
||
self.running_flags[port_name] = False
|
||
if port_name in self.read_threads:
|
||
self.read_threads.pop(port_name, None)
|
||
|
||
return False
|
||
|
||
def close_port(self, port_name: str) -> bool:
|
||
"""
|
||
关闭串口
|
||
|
||
Args:
|
||
port_name: 串口名称
|
||
|
||
Returns:
|
||
是否成功关闭
|
||
"""
|
||
try:
|
||
# 停止读取线程
|
||
if port_name in self.running_flags:
|
||
self.running_flags[port_name] = False
|
||
|
||
# 等待线程结束
|
||
if port_name in self.read_threads:
|
||
if self.read_threads[port_name].is_alive():
|
||
self.read_threads[port_name].join(1.0) # 最多等待1秒
|
||
del self.read_threads[port_name]
|
||
|
||
# 关闭串口
|
||
if port_name in self.serial_ports:
|
||
if self.serial_ports[port_name].is_open:
|
||
self.serial_ports[port_name].close()
|
||
del self.serial_ports[port_name]
|
||
logging.info(f"串行对象 for {port_name} 从 self.serial_ports 中删除. 当前活跃端口: {list(self.serial_ports.keys())}")
|
||
|
||
# 删除回调
|
||
if port_name in self.callbacks:
|
||
del self.callbacks[port_name]
|
||
|
||
logging.info(f"串口 {port_name} 已关闭")
|
||
return True
|
||
|
||
except Exception as e:
|
||
logging.error(f"关闭串口 {port_name} 失败: {str(e)}")
|
||
return False
|
||
|
||
def is_port_open(self, port_name: str) -> bool:
|
||
"""
|
||
检查串口是否打开
|
||
|
||
Args:
|
||
port_name: 串口名称
|
||
|
||
Returns:
|
||
是否打开
|
||
"""
|
||
return port_name in self.serial_ports and self.serial_ports[port_name].is_open
|
||
|
||
def write_data(self, port_name: str, data: bytes) -> bool:
|
||
"""
|
||
向串口写入数据
|
||
|
||
Args:
|
||
port_name: 串口名称
|
||
data: 要写入的数据
|
||
|
||
Returns:
|
||
是否成功写入
|
||
"""
|
||
try:
|
||
if not self.is_port_open(port_name):
|
||
return False
|
||
|
||
self.serial_ports[port_name].write(data)
|
||
return True
|
||
|
||
except Exception as e:
|
||
logging.error(f"向串口 {port_name} 写入数据失败: {str(e)}")
|
||
return False
|
||
|
||
def read_data(self, port_name: str, size: int = None) -> bytes:
|
||
"""
|
||
从串口读取数据
|
||
|
||
Args:
|
||
port_name: 串口名称
|
||
size: 要读取的字节数，如果为None则读取所有可用数据
|
||
|
||
Returns:
|
||
读取的数据，如果失败则返回空字节
|
||
"""
|
||
try:
|
||
if not self.is_port_open(port_name):
|
||
logging.error(f"尝试从未打开的串口 {port_name} 读取数据")
|
||
return b''
|
||
|
||
if size is None:
|
||
# 读取所有可用数据
|
||
if self.serial_ports[port_name].in_waiting > 0:
|
||
return self.serial_ports[port_name].read(self.serial_ports[port_name].in_waiting)
|
||
return b''
|
||
else:
|
||
# 读取指定数量的字节
|
||
return self.serial_ports[port_name].read(size)
|
||
|
||
except Exception as e:
|
||
logging.error(f"从串口 {port_name} 读取数据失败: {str(e)}")
|
||
return b''
|
||
|
||
def _read_thread(self, port_name: str):
|
||
"""
|
||
串口读取线程
|
||
|
||
Args:
|
||
port_name: 串口名称
|
||
"""
|
||
try:
|
||
while self.running_flags.get(port_name, False):
|
||
if not self.is_port_open(port_name):
|
||
time.sleep(0.1)
|
||
continue
|
||
|
||
# 读取数据
|
||
if self.serial_ports[port_name].in_waiting:
|
||
data = self.serial_ports[port_name].readline()
|
||
|
||
# 调用回调函数
|
||
if port_name in self.callbacks and data:
|
||
try:
|
||
self.callbacks[port_name](port_name, data)
|
||
except Exception as e:
|
||
logging.error(f"调用串口 {port_name} 回调函数失败: {str(e)}")
|
||
|
||
time.sleep(0.01) # 短暂休眠，避免CPU占用过高
|
||
|
||
except Exception as e:
|
||
logging.error(f"串口 {port_name} 读取线程异常: {str(e)}")
|
||
|
||
def _read_weight_thread(self, port_name: str, stable_threshold: int = 10):
|
||
logging.info(f"[{port_name}] 称重线程启动")
|
||
# 重置状态变量，确保线程重启时能正确处理称重数据
|
||
self.weight_written = False
|
||
self.stable_count = 0
|
||
self.last_weight = 0
|
||
self.last_weights = [0] * 3
|
||
self.weight_changed_time = time.time()
|
||
self.last_write_time = 0 # 添加一个变量来跟踪最后一次写入时间
|
||
self.stability_start_time = 0 # 重置稳定性检测开始时间
|
||
|
||
def _process_weight_data(self, data_bytes):
|
||
"""
|
||
Args:
|
||
data_bytes: 原始字节数据
|
||
|
||
Returns:
|
||
解析后的重量值或None
|
||
"""
|
||
try:
|
||
# 尝试多种编码方式解析
|
||
weight = None
|
||
|
||
# 记录原始数据以便调试
|
||
logging.debug(f"称重原始数据: {data_bytes.hex()}")
|
||
|
||
# 方法1: 尝试ASCII解码
|
||
try:
|
||
ascii_str = data_bytes.decode('ascii', errors='replace')
|
||
# 仅提取数字部分
|
||
import re
|
||
numbers = re.findall(r'\d+', ascii_str)
|
||
if numbers:
|
||
weight = float(numbers[0]) / 10.0
|
||
logging.debug(f"ASCII解码成功: {weight}")
|
||
except Exception as e:
|
||
logging.debug(f"ASCII解码失败: {e}")
|
||
|
||
# 方法2: 尝试直接从二进制解析 (根据具体协议)
|
||
if weight is None and len(data_bytes) >= 8:
|
||
try:
|
||
# 假设重量在特定位置，具体需根据实际协议调整
|
||
weight_bytes = data_bytes[2:6]
|
||
weight = int.from_bytes(weight_bytes, byteorder='big') / 10.0
|
||
logging.debug(f"二进制解码成功: {weight}")
|
||
except Exception as e:
|
||
logging.debug(f"二进制解码失败: {e}")
|
||
|
||
return weight
|
||
except Exception as e:
|
||
logging.error(f"处理称重数据失败: {e}")
|
||
return None
|
||
|
||
def _read_resistance_thread(self, port_name: str):
|
||
"""
|
||
米电阻串口读取线程
|
||
|
||
Args:
|
||
port_name: 串口名称
|
||
"""
|
||
try:
|
||
while self.running_flags.get(port_name, False):
|
||
if not self.is_port_open(port_name):
|
||
time.sleep(0.1)
|
||
continue
|
||
|
||
# 如果不是自动查询模式，则只监听串口数据而不主动发送查询
|
||
if not self.auto_query_mdz:
|
||
# 检查是否有数据可读
|
||
if self.serial_ports[port_name].in_waiting > 0:
|
||
response = self.serial_ports[port_name].read(self.serial_ports[port_name].in_waiting)
|
||
self._process_mdz_response(port_name, response)
|
||
|
||
time.sleep(0.1)
|
||
continue
|
||
|
||
# 以下代码只在自动查询模式下执行
|
||
try:
|
||
# 发送查询指令
|
||
hex_data = '01 03 00 01 00 07 55 C8'
|
||
byte_data = bytes.fromhex(hex_data.replace(' ', ''))
|
||
self.serial_ports[port_name].write(byte_data)
|
||
|
||
# 等待响应
|
||
time.sleep(1)
|
||
|
||
if self.serial_ports[port_name].in_waiting > 0:
|
||
response = self.serial_ports[port_name].read(self.serial_ports[port_name].in_waiting)
|
||
self._process_mdz_response(port_name, response)
|
||
|
||
except Exception as e:
|
||
logging.error(f"米电阻数据处理异常: {e}")
|
||
|
||
# 每5秒查询一次
|
||
for i in range(50):
|
||
if not self.running_flags.get(port_name, False):
|
||
break
|
||
time.sleep(0.1)
|
||
|
||
except Exception as e:
|
||
logging.error(f"米电阻串口 {port_name} 读取线程异常: {e}")
|
||
|
||
def _process_mdz_response(self, port_name, response_bytes: bytes):
|
||
"""处理米电阻响应数据"""
|
||
try:
|
||
if response_bytes: # 确保有响应数据
|
||
try:
|
||
# 转换为字符串用于日志记录
|
||
response_str = str(response_bytes)
|
||
logging.warning(f"[{port_name}] 米电阻数据: {response_str}")
|
||
|
||
# 使用正则表达式直接提取数字
|
||
# 查找格式为11.58201这样的浮点数
|
||
match = re.search(r'(\d+\.\d+)', response_str)
|
||
if match:
|
||
number_str = match.group(1)
|
||
try:
|
||
# 转换为浮点数
|
||
mdz_value = float(number_str)
|
||
logging.info(f"米电阻数据: {mdz_value}")
|
||
|
||
# 更新数据
|
||
self.data['mdz'] = mdz_value
|
||
self._write_data_to_file()
|
||
self._notify_callbacks('mdz_data', {"type": "mdz", "value": self.data['mdz'], "source": f"serial ({port_name})"})
|
||
return True
|
||
except ValueError:
|
||
logging.warning(f"米电阻数据字符串 '{number_str}' 无法转换为浮点数")
|
||
else:
|
||
logging.warning(f"米电阻数据中未找到有效的浮点数")
|
||
except Exception as e:
|
||
logging.error(f"处理米电阻数据异常: {e}")
|
||
else:
|
||
logging.warning("米电阻响应数据为空")
|
||
|
||
# 如果无法解析，则不再使用模拟数据，直接返回失败
|
||
return False
|
||
|
||
except Exception as e:
|
||
logging.error(f"米电阻数据处理关键异常: {e}")
|
||
return False
|
||
|
||
def _write_data_to_file(self):
|
||
"""将数据写入文件"""
|
||
try:
|
||
# 检查文件操作是否已暂停
|
||
with self._file_operations_lock:
|
||
if self._file_operations_suspended:
|
||
logging.info("文件操作已暂停，跳过写入")
|
||
return
|
||
|
||
# 构建数据字符串
|
||
data_str = f"mdz:{self.data['mdz']}|cz:{self.data['cz']}|scanner:{self.data['scanner']}|"
|
||
|
||
# 确保目录存在
|
||
data_dir = os.path.dirname(self.data_file)
|
||
if data_dir and not os.path.exists(data_dir):
|
||
logging.info(f"创建目录: {data_dir}")
|
||
os.makedirs(data_dir, exist_ok=True)
|
||
|
||
# 写入文件 - 使用临时文件写入然后重命名，避免文件锁定问题
|
||
# 创建临时文件
|
||
temp_file = f"{self.data_file}.tmp"
|
||
try:
|
||
with open(temp_file, 'w', encoding='utf-8') as f:
|
||
f.write(data_str)
|
||
f.flush()
|
||
os.fsync(f.fileno()) # 确保数据写入磁盘
|
||
|
||
# 再次检查文件操作是否已暂停
|
||
with self._file_operations_lock:
|
||
if self._file_operations_suspended:
|
||
logging.info("文件操作已暂停，已写入临时文件但取消重命名操作")
|
||
return
|
||
|
||
# 原子性地重命名文件，替换原有文件（在大多数操作系统上是原子操作）
|
||
if os.path.exists(self.data_file):
|
||
try:
|
||
os.remove(self.data_file)
|
||
except Exception as e:
|
||
logging.warning(f"无法删除旧数据文件: {e}, 尝试直接覆盖")
|
||
|
||
os.rename(temp_file, self.data_file)
|
||
logging.info(f"数据已写入文件: {self.data_file}")
|
||
except Exception as e:
|
||
logging.error(f"写入临时文件失败: {e}")
|
||
# 清理临时文件
|
||
if os.path.exists(temp_file):
|
||
try:
|
||
os.remove(temp_file)
|
||
except:
|
||
pass
|
||
raise # 重新抛出异常
|
||
|
||
except Exception as e:
|
||
logging.error(f"写入数据文件失败: {e}, 文件路径: {self.data_file}")
|
||
|
||
def get_current_data(self):
|
||
"""获取当前数据"""
|
||
return self.data.copy()
|
||
|
||
def close_all_ports(self):
|
||
"""关闭所有串口"""
|
||
port_names = list(self.serial_ports.keys())
|
||
for port_name in port_names:
|
||
self.close_port(port_name)
|
||
|
||
def reload_config(self):
|
||
"""重新加载配置"""
|
||
self._load_config()
|
||
logging.info("已重新加载串口配置")
|
||
|
||
def start_keyboard_listener(self):
|
||
"""启动键盘监听"""
|
||
try:
|
||
# 检查是否启用键盘监听功能
|
||
enable_keyboard_listener = self.config.get_value('app.features.enable_keyboard_listener', False)
|
||
if not enable_keyboard_listener:
|
||
logging.info("键盘监听功能已在配置中禁用，跳过启动键盘监听")
|
||
return False
|
||
|
||
# 检查键盘监听器是否已初始化
|
||
if self.keyboard_listener is None:
|
||
logging.warning("键盘监听器未初始化，无法启动")
|
||
return False
|
||
|
||
# 从配置中获取触发键
|
||
config = ConfigLoader.get_instance()
|
||
trigger_key = config.get_value('serial.keyboard.trigger_key', 'Key.page_up')
|
||
|
||
# 确保已注册触发键回调
|
||
if trigger_key not in self.keyboard_listener.callbacks:
|
||
self.keyboard_listener.register_callback(trigger_key, self.trigger_resistance_query)
|
||
logging.info(f"已注册{trigger_key}按键回调用于触发米电阻数据查询")
|
||
|
||
# 启动键盘监听
|
||
result = self.keyboard_listener.start()
|
||
if result:
|
||
logging.info(f"已启动键盘监听，按 {trigger_key} 键可触发米电阻数据查询")
|
||
|
||
# 检查监听器状态
|
||
if self.keyboard_listener.is_active():
|
||
logging.info("键盘监听器处于活动状态")
|
||
else:
|
||
logging.warning("键盘监听器启动完成，但状态检查显示不活动")
|
||
else:
|
||
logging.error("启动键盘监听失败")
|
||
return result
|
||
except Exception as e:
|
||
logging.error(f"启动键盘监听失败: {e}")
|
||
return False
|
||
|
||
def stop_keyboard_listener(self, join_thread=False):
|
||
"""停止键盘监听
|
||
|
||
Args:
|
||
join_thread: 是否等待键盘监听线程结束
|
||
"""
|
||
try:
|
||
# 检查键盘监听器是否已初始化
|
||
if self.keyboard_listener is None:
|
||
logging.info("键盘监听器未初始化，无需停止")
|
||
return
|
||
|
||
self.keyboard_listener.stop()
|
||
logging.info("已停止键盘监听")
|
||
|
||
# 如果需要等待线程结束
|
||
if join_thread:
|
||
try:
|
||
self.keyboard_listener.join(timeout=1.0) # 最多等待1秒
|
||
except Exception as e:
|
||
logging.error(f"等待键盘监听线程结束时出错: {e}")
|
||
except Exception as e:
|
||
logging.error(f"停止键盘监听失败: {e}")
|
||
|
||
def register_callback(self, key, callback):
|
||
"""
|
||
注册数据回调函数
|
||
|
||
Args:
|
||
key: 回调标识，如 'mdz_data'
|
||
callback: 回调函数，参数为 (port_name, data)
|
||
"""
|
||
try:
|
||
if key in self.callbacks:
|
||
logging.warning(f"覆盖已存在的回调函数: {key}")
|
||
self.callbacks[key] = callback
|
||
logging.info(f"已注册回调函数: {key}")
|
||
except Exception as e:
|
||
logging.error(f"注册回调失败: {e}")
|
||
|
||
def trigger_resistance_query(self):
|
||
"""触发米电阻数据查询，如果串口未打开，则尝试临时打开并查询"""
|
||
# 直接打印到控制台，确保可见
|
||
print("\n[米电阻查询] PageUp键被按下，正在触发米电阻数据查询...\n")
|
||
|
||
# 检查是否启用串口功能
|
||
enable_serial_ports = self.config.get_value('app.features.enable_serial_ports', False)
|
||
if not enable_serial_ports:
|
||
logging.info("串口功能已在配置中禁用，跳过米电阻数据查询")
|
||
print("\n[米电阻查询] 串口功能已禁用，无法查询\n")
|
||
return
|
||
|
||
# 检查是否启用键盘监听功能 - 如果这个按键是通过键盘触发的,应该尊重键盘监听器配置
|
||
enable_keyboard_listener = self.config.get_value('app.features.enable_keyboard_listener', False)
|
||
if not enable_keyboard_listener:
|
||
logging.info("键盘监听功能已在配置中禁用，但收到了Page Up触发，检查是否为其他来源的调用")
|
||
print("\n[米电阻查询] 键盘监听功能已禁用，但收到了触发\n")
|
||
# 这里我们仍然继续执行，因为该方法可能由其他非键盘源调用
|
||
|
||
# 从配置中获取触发键
|
||
config = ConfigLoader.get_instance()
|
||
trigger_key = config.get_value('serial.keyboard.trigger_key', 'Key.page_up')
|
||
logging.info(f"[SerialManager] {trigger_key}键按下，正在触发米电阻数据查询...")
|
||
print(f"\n[米电阻查询] {trigger_key}键按下，正在处理...\n")
|
||
|
||
if not self.mdz_config:
|
||
logging.error("[SerialManager] 米电阻配置 (mdz_config) 未加载，无法查询。")
|
||
print("\n[米电阻查询] 配置未加载，无法查询\n")
|
||
return
|
||
|
||
mdz_port_name = self.mdz_config.get('ser')
|
||
query_cmd_hex = self.mdz_config.get('query_cmd', '01030001000755C8')
|
||
baud_rate = self.mdz_config.get('port', 9600)
|
||
timeout = self.mdz_config.get('timeout', 1.0)
|
||
data_bits = self.mdz_config.get('data_bits', 8)
|
||
stop_bits = self.mdz_config.get('stop_bits', 1)
|
||
parity_char = self.mdz_config.get('parity', 'N')
|
||
parity = parity_char # Use the character directly ('N', 'E', or 'O')
|
||
logging.info(f"[SerialManager] 使用校验位设置: {parity}")
|
||
print(f"\n[米电阻查询] 串口配置: {mdz_port_name}, {baud_rate}, {data_bits}, {stop_bits}, {parity}\n")
|
||
|
||
temp_ser = None
|
||
try:
|
||
byte_data = bytes.fromhex(query_cmd_hex.replace(' ', ''))
|
||
logging.info(f"[SerialManager] 准备发送米电阻查询指令: {byte_data.hex(' ').upper()} 到端口 {mdz_port_name}")
|
||
print(f"\n[米电阻查询] 准备发送查询指令: {byte_data.hex(' ').upper()}\n")
|
||
|
||
# 检查 SerialManager 是否已管理此端口且已打开
|
||
if self.is_port_open(mdz_port_name):
|
||
logging.info(f"[SerialManager] 米电阻串口 {mdz_port_name} 已由 SerialManager 管理并打开，直接发送指令。")
|
||
print(f"\n[米电阻查询] 串口 {mdz_port_name} 已打开，直接发送指令\n")
|
||
if self.write_data(mdz_port_name, byte_data):
|
||
logging.info(f"[SerialManager] 指令已发送到 {mdz_port_name} (通过已打开的串口)。响应将由读取线程处理。")
|
||
print("\n[米电阻查询] 指令发送成功，等待响应\n")
|
||
# 当串口已打开时，指令发送后，响应会由 _read_resistance_thread 捕获并处理。
|
||
# _read_resistance_thread 内部的 _process_mdz_response 会负责更新 self.data,
|
||
# 调用 _write_data_to_file 和 _notify_callbacks。
|
||
# 因此，这里不需要再显式地 sleep 后调用 _write_data_to_file 和 _notify_callbacks，
|
||
# 以避免数据竞争或重复通知。
|
||
return # 指令已发送，等待线程处理
|
||
else:
|
||
logging.warning(f"[SerialManager] 向已打开的串口 {mdz_port_name} 发送指令失败。将尝试临时打开。")
|
||
print("\n[米电阻查询] 指令发送失败，尝试临时打开串口\n")
|
||
|
||
# 如果串口未被 SerialManager 管理或发送失败，则尝试临时打开
|
||
logging.info(f"[SerialManager] 米电阻串口 {mdz_port_name} 未打开或发送失败。尝试临时打开并查询...")
|
||
print(f"\n[米电阻查询] 串口 {mdz_port_name} 未打开，尝试临时打开\n")
|
||
temp_ser = serial.Serial(
|
||
port=mdz_port_name,
|
||
baudrate=baud_rate,
|
||
bytesize=data_bits,
|
||
stopbits=stop_bits,
|
||
parity=parity,
|
||
timeout=timeout
|
||
)
|
||
if not temp_ser.is_open:
|
||
temp_ser.open()
|
||
|
||
temp_ser.write(byte_data)
|
||
logging.info(f"[SerialManager] 指令已通过临时串口发送到 {mdz_port_name}。等待响应...")
|
||
print("\n[米电阻查询] 指令已通过临时串口发送，等待响应\n")
|
||
time.sleep(0.1) # 等待设备响应
|
||
response_bytes = b''
|
||
if temp_ser.in_waiting > 0:
|
||
response_bytes = temp_ser.read(temp_ser.in_waiting)
|
||
|
||
if response_bytes:
|
||
logging.info(f"[SerialManager] 收到来自 {mdz_port_name} (临时串口) 的响应: {response_bytes.hex(' ').upper()}")
|
||
print(f"\n[米电阻查询] 收到响应: {response_bytes.hex(' ').upper()}\n")
|
||
|
||
# 将响应交给标准的处理函数
|
||
parse_success = self._process_mdz_response(mdz_port_name, response_bytes)
|
||
if not parse_success:
|
||
logging.warning(f"[SerialManager] _process_mdz_response未能成功处理来自临时串口{mdz_port_name}的响应。将依赖其内部的mock/old data逻辑。")
|
||
print("\n[米电阻查询] 响应解析失败\n")
|
||
# _process_mdz_response 内部在失败时会处理 mock/old data 及文件写入和通知，这里无需额外操作。
|
||
else:
|
||
logging.warning(f"[SerialManager] 未收到来自 {mdz_port_name} (临时串口) 的响应。")
|
||
print("\n[米电阻查询] 未收到响应\n")
|
||
except serial.SerialException as se:
|
||
logging.error(f"[SerialManager] 临时打开或操作串口 {mdz_port_name} 失败: {se}")
|
||
print(f"\n[米电阻查询] 串口操作失败: {se}\n")
|
||
except ValueError as ve:
|
||
logging.error(f"[SerialManager] 指令转换错误或响应解析错误 (临时查询): {ve}")
|
||
print(f"\n[米电阻查询] 指令转换或响应解析错误: {ve}\n")
|
||
except Exception as e:
|
||
logging.error(f"[SerialManager] 触发米电阻查询时发生未知错误 (临时查询): {e}", exc_info=True)
|
||
print(f"\n[米电阻查询] 未知错误: {e}\n")
|
||
finally:
|
||
if temp_ser and temp_ser.is_open:
|
||
temp_ser.close()
|
||
logging.info("[SerialManager] 米电阻数据查询流程结束。")
|
||
print("\n[米电阻查询] 查询流程结束\n")
|
||
|
||
def _notify_callbacks(self, port_name, value):
|
||
"""通知所有相关回调函数"""
|
||
try:
|
||
# 端口特定回调 (通常用于原始串口数据)
|
||
if port_name in self.callbacks and port_name not in ['mdz_data', 'xj_data', 'scanner_data']: # 避免重复处理
|
||
try:
|
||
# 假设这种回调期望原始的 value (可能是字节串，也可能是其他类型)
|
||
self.callbacks[port_name](port_name, value)
|
||
logging.debug(f"Notified port-specific callback for {port_name}")
|
||
except Exception as e:
|
||
logging.error(f"调用端口回调 {port_name} 失败: {e}")
|
||
|
||
# 全局回调, 特别处理 'mdz_data'
|
||
if 'mdz_data' in self.callbacks and port_name == 'mdz_data':
|
||
actual_mdz_numeric_value = None
|
||
source_info = "unknown"
|
||
|
||
if isinstance(value, dict):
|
||
actual_mdz_numeric_value = value.get('value')
|
||
source_info = value.get('source', source_info)
|
||
elif isinstance(value, (str, float, int)):
|
||
# 如果直接传递了数值 (例如来自旧的 _use_mock_data)
|
||
actual_mdz_numeric_value = str(value)
|
||
else:
|
||
# 尝试从可能是字节串的value中解码 (不太可能走到这里了，因为上游会处理好)
|
||
try:
|
||
decoded_value = value.decode('utf-8')
|
||
if "米电阻数据:" in decoded_value:
|
||
actual_mdz_numeric_value = decoded_value.split("米电阻数据:")[1].strip()
|
||
else:
|
||
actual_mdz_numeric_value = decoded_value # best guess
|
||
except: # noqa
|
||
pass # 无法解码或解析，保持 None
|
||
|
||
if actual_mdz_numeric_value is not None:
|
||
# 构建 PackageInboundDialog.on_mdz_data_received 期望的格式
|
||
callback_data_str = f"米电阻数据: {actual_mdz_numeric_value}"
|
||
try:
|
||
# port_name 对于 mdz_data 回调，可以传递触发源的串口名，或者一个通用标识
|
||
# trigger_resistance_query 知道 mdz_port_name，它应该作为 port_name 传给 _notify_callbacks
|
||
# 如果是从模拟数据来，port_name 可能是 'mdz' 或 'mock'
|
||
triggering_port = port_name if port_name not in ['mdz_data', 'mdz'] else self.mdz_config.get('ser', 'N/A') if self.mdz_config else 'N/A'
|
||
if source_info.startswith("mock"): # 如果源是模拟数据
|
||
triggering_port = f"mock_{port_name}" # e.g. mock_mdz
|
||
|
||
self.callbacks['mdz_data'](triggering_port, callback_data_str.encode('utf-8'))
|
||
logging.info(f"通知 'mdz_data' 回调. 值: {actual_mdz_numeric_value}, 源: {source_info}, 触发源端口: {triggering_port}")
|
||
except Exception as e:
|
||
logging.error(f"调用全局回调 'mdz_data' 失败: {e}", exc_info=True)
|
||
else:
|
||
logging.warning(f"回调失败: mdz_data 中 实际值为None. 初始 value: {value}")
|
||
|
||
# 全局回调, 特别处理 'xj_data'
|
||
if 'xj_data' in self.callbacks and port_name == 'xj_data':
|
||
actual_xj_numeric_value = None
|
||
source_info = "unknown"
|
||
|
||
if isinstance(value, dict):
|
||
actual_xj_numeric_value = value.get('value')
|
||
source_info = value.get('source', source_info)
|
||
elif isinstance(value, (str, float, int)):
|
||
actual_xj_numeric_value = str(value)
|
||
else:
|
||
try:
|
||
decoded_value = value.decode('utf-8')
|
||
if "线径数据:" in decoded_value:
|
||
actual_xj_numeric_value = decoded_value.split("线径数据:")[1].strip()
|
||
else:
|
||
actual_xj_numeric_value = decoded_value # best guess
|
||
except: # noqa
|
||
pass # 无法解码或解析，保持 None
|
||
|
||
if actual_xj_numeric_value is not None:
|
||
callback_data_str = f"线径数据: {actual_xj_numeric_value}"
|
||
try:
|
||
triggering_port = port_name if port_name not in ['xj_data', 'xj'] else self.xj_config.get('ser', 'N/A') if self.xj_config else 'N/A'
|
||
if source_info.startswith("mock"):
|
||
triggering_port = f"mock_{port_name}"
|
||
|
||
self.callbacks['xj_data'](triggering_port, callback_data_str.encode('utf-8'))
|
||
logging.info(f"通知 'xj_data' 回调. 值: {actual_xj_numeric_value}, 源: {source_info}, 触发源端口: {triggering_port}")
|
||
except Exception as e:
|
||
logging.error(f"调用全局回调 'xj_data' 失败: {e}", exc_info=True)
|
||
else:
|
||
logging.warning(f"回调失败: xj_data 中实际值为None. 初始 value: {value}")
|
||
|
||
# 全局回调, 特别处理 'scanner_data'
|
||
if 'scanner_data' in self.callbacks and port_name == 'scanner_data':
|
||
actual_scanner_value = None
|
||
source_info = "unknown"
|
||
|
||
if isinstance(value, dict):
|
||
actual_scanner_value = value.get('value')
|
||
source_info = value.get('source', source_info)
|
||
elif isinstance(value, (str, bytes)):
|
||
if isinstance(value, bytes):
|
||
try:
|
||
actual_scanner_value = value.decode('utf-8').strip()
|
||
except:
|
||
actual_scanner_value = str(value)
|
||
else:
|
||
actual_scanner_value = value
|
||
|
||
if actual_scanner_value is not None:
|
||
callback_data_str = f"扫码数据: {actual_scanner_value}"
|
||
try:
|
||
triggering_port = port_name if port_name not in ['scanner_data', 'scanner'] else self.scanner_config.get('ser', 'N/A') if self.scanner_config else 'N/A'
|
||
if source_info.startswith("mock"):
|
||
triggering_port = f"mock_{port_name}"
|
||
|
||
self.callbacks['scanner_data'](triggering_port, callback_data_str.encode('utf-8'))
|
||
logging.info(f"通知 'scanner_data' 回调. 值: {actual_scanner_value}, 源: {source_info}, 触发源端口: {triggering_port}")
|
||
except Exception as e:
|
||
logging.error(f"调用全局回调 'scanner_data' 失败: {e}", exc_info=True)
|
||
else:
|
||
logging.warning(f"回调失败: scanner_data 中实际值为None. 初始 value: {value}")
|
||
|
||
except Exception as e:
|
||
logging.error(f"通知回调失败: {e}", exc_info=True)
|
||
|
||
def auto_open_configured_ports(self):
|
||
"""自动打开已配置的串口"""
|
||
logging.info("尝试自动打开已配置的串口...")
|
||
|
||
# 首先检查是否启用串口功能
|
||
enable_serial_ports = self.config.get_value('app.features.enable_serial_ports', False)
|
||
if not enable_serial_ports:
|
||
logging.info("串口功能已在配置中禁用，跳过自动打开串口")
|
||
return False
|
||
|
||
success = True
|
||
|
||
# 检查操作系统类型并提供合适的警告
|
||
os_type = platform.system()
|
||
if os_type == "Darwin" and (
|
||
(self.mdz_config and 'ser' in self.mdz_config and self.mdz_config['ser'] and self.mdz_config['ser'].startswith('COM')) or
|
||
(self.cz_config and 'ser' in self.cz_config and self.cz_config['ser'] and self.cz_config['ser'].startswith('COM')) or
|
||
(self.scanner_config and 'ser' in self.scanner_config and self.scanner_config['ser'] and self.scanner_config['ser'].startswith('COM'))
|
||
):
|
||
logging.warning("检测到在macOS系统上配置了Windows格式的COM端口，这些端口将无法正常打开")
|
||
logging.warning("macOS上的串口通常是/dev/tty.*或/dev/cu.*格式")
|
||
# 继续尝试打开，但不影响程序流程
|
||
|
||
# 尝试打开线径串口
|
||
if self.cz_config and 'ser' in self.cz_config and self.cz_config['ser'] and self.cz_config['ser'].strip():
|
||
port_name = self.cz_config['ser']
|
||
baud_rate = self.cz_config.get('port', 2400)
|
||
|
||
if not self.is_port_open(port_name):
|
||
try:
|
||
if self.open_port(port_name, 'cz', baud_rate):
|
||
logging.info(f"自动打开线径串口 {port_name} 成功")
|
||
else:
|
||
logging.error(f"自动打开线径串口 {port_name} 失败")
|
||
success = False
|
||
except Exception as e:
|
||
logging.error(f"自动打开线径串口 {port_name} 时发生异常: {e}")
|
||
success = False
|
||
else:
|
||
logging.info(f"线径串口 {port_name} 已经打开，无需重新打开")
|
||
else:
|
||
logging.warning("线径串口未配置或设置为不使用，跳过自动打开")
|
||
|
||
# 尝试打开米电阻串口
|
||
if self.mdz_config and 'ser' in self.mdz_config and self.mdz_config['ser'] and self.mdz_config['ser'].strip():
|
||
port_name = self.mdz_config['ser']
|
||
baud_rate = self.mdz_config.get('port', 9600)
|
||
|
||
if not self.is_port_open(port_name):
|
||
try:
|
||
if self.open_port(port_name, 'mdz', baud_rate):
|
||
logging.info(f"自动打开米电阻串口 {port_name} 成功")
|
||
else:
|
||
logging.error(f"自动打开米电阻串口 {port_name} 失败")
|
||
success = False
|
||
except Exception as e:
|
||
logging.error(f"自动打开米电阻串口 {port_name} 时发生异常: {e}")
|
||
success = False
|
||
else:
|
||
logging.info(f"米电阻串口 {port_name} 已经打开，无需重新打开")
|
||
else:
|
||
logging.warning("米电阻串口未配置或设置为不使用，跳过自动打开")
|
||
|
||
# 尝试打开扫码器串口
|
||
if self.scanner_config and 'ser' in self.scanner_config and self.scanner_config['ser'] and self.scanner_config['ser'].strip():
|
||
port_name = self.scanner_config['ser']
|
||
baud_rate = self.scanner_config.get('port', 9600)
|
||
|
||
if not self.is_port_open(port_name):
|
||
try:
|
||
if self.open_port(port_name, 'scanner', baud_rate):
|
||
logging.info(f"自动打开扫码器串口 {port_name} 成功")
|
||
else:
|
||
logging.error(f"自动打开扫码器串口 {port_name} 失败")
|
||
success = False
|
||
except Exception as e:
|
||
logging.error(f"自动打开扫码器串口 {port_name} 时发生异常: {e}")
|
||
success = False
|
||
else:
|
||
logging.info(f"扫码器串口 {port_name} 已经打开，无需重新打开")
|
||
else:
|
||
logging.warning("扫码器串口未配置或设置为不使用，跳过自动打开")
|
||
|
||
# 注意：不在这里启动键盘监听器，而是在MainWindow的handle_start方法中显式调用start_keyboard_listener
|
||
|
||
if not success:
|
||
logging.warning("部分串口自动打开失败，请检查设备连接或在参数配置中手动打开")
|
||
|
||
return True # 总是返回True，防止应用程序因串口问题而终止
|
||
|
||
def suspend_file_operations(self, suspend: bool):
|
||
"""暂停或恢复文件操作
|
||
|
||
Args:
|
||
suspend: True表示暂停，False表示恢复
|
||
"""
|
||
with self._file_operations_lock:
|
||
old_state = self._file_operations_suspended
|
||
self._file_operations_suspended = suspend
|
||
|
||
if old_state != suspend:
|
||
if suspend:
|
||
logging.info("已暂停SerialManager文件操作")
|
||
else:
|
||
logging.info("已恢复SerialManager文件操作")
|
||
|
||
def _read_diameter_thread(self, port_name: str):
|
||
"""
|
||
线径串口读取线程
|
||
|
||
Args:
|
||
port_name: 串口名称
|
||
"""
|
||
try:
|
||
while self.running_flags.get(port_name, False):
|
||
if not self.is_port_open(port_name):
|
||
time.sleep(0.1)
|
||
continue
|
||
|
||
# 检查是否有数据可读
|
||
if self.serial_ports[port_name].in_waiting > 0:
|
||
response = self.serial_ports[port_name].read(self.serial_ports[port_name].in_waiting)
|
||
self._process_diameter_response(port_name, response)
|
||
|
||
time.sleep(0.1)
|
||
|
||
except Exception as e:
|
||
logging.error(f"线径串口 {port_name} 读取线程异常: {e}")
|
||
|
||
def _process_diameter_response(self, port_name, response_bytes: bytes):
|
||
"""处理线径响应数据"""
|
||
try:
|
||
if response_bytes: # 确保有响应数据
|
||
try:
|
||
# 转换为字符串用于日志记录
|
||
response_str = str(response_bytes)
|
||
logging.warning(f"[{port_name}] 线径数据: {response_str}")
|
||
|
||
# 使用正则表达式直接提取数字
|
||
# 查找格式为20.15这样的浮点数
|
||
match = re.search(r'(\d+\.?\d*)', response_str)
|
||
if match:
|
||
number_str = match.group(1)
|
||
try:
|
||
# 转换为浮点数
|
||
xj_value = float(number_str)
|
||
logging.info(f"线径数据: {xj_value}")
|
||
|
||
# 更新数据
|
||
self.data['xj'] = xj_value
|
||
self._write_data_to_file()
|
||
self._notify_callbacks('xj_data', {"type": "xj", "value": self.data['xj'], "source": f"serial ({port_name})"})
|
||
return True
|
||
except ValueError:
|
||
logging.warning(f"线径数据字符串 '{number_str}' 无法转换为浮点数")
|
||
else:
|
||
logging.warning(f"线径数据中未找到有效的浮点数")
|
||
except Exception as e:
|
||
logging.error(f"处理线径数据异常: {e}")
|
||
else:
|
||
logging.warning("线径响应数据为空")
|
||
|
||
# 如果无法解析，则直接返回失败
|
||
return False
|
||
except Exception as e:
|
||
logging.error(f"处理线径数据总体异常: {e}")
|
||
return False
|
||
|
||
def _read_scanner_thread(self, port_name: str):
|
||
"""
|
||
扫码器串口读取线程
|
||
|
||
Args:
|
||
port_name: 串口名称
|
||
"""
|
||
try:
|
||
while self.running_flags.get(port_name, False):
|
||
if not self.is_port_open(port_name):
|
||
time.sleep(0.1)
|
||
continue
|
||
|
||
# 检查是否有数据可读
|
||
if self.serial_ports[port_name].in_waiting > 0:
|
||
response = self.serial_ports[port_name].read(self.serial_ports[port_name].in_waiting)
|
||
self._process_scanner_response(port_name, response)
|
||
|
||
time.sleep(0.1)
|
||
|
||
except Exception as e:
|
||
logging.error(f"扫码器串口 {port_name} 读取线程异常: {e}")
|
||
|
||
def _process_scanner_response(self, port_name, response_bytes: bytes):
|
||
"""处理扫码器响应数据"""
|
||
try:
|
||
if response_bytes: # 确保有响应数据
|
||
try:
|
||
# 尝试解码为字符串
|
||
scanner_value = response_bytes.decode('utf-8').strip()
|
||
|
||
# 记录日志
|
||
logging.info(f"[{port_name}] 扫码数据: {scanner_value}")
|
||
|
||
# 更新数据
|
||
self.data['scanner'] = scanner_value
|
||
|
||
# 写入文件并通知回调
|
||
self._write_data_to_file()
|
||
# 使用"扫码数据: xxx"格式通知回调
|
||
callback_data = f"扫码数据: {scanner_value}".encode('utf-8')
|
||
if 'scanner_data' in self.callbacks:
|
||
self.callbacks['scanner_data'](port_name, callback_data)
|
||
return True
|
||
except Exception as e:
|
||
logging.error(f"处理扫码数据异常: {e}")
|
||
# 解码失败，尝试直接使用字节数据
|
||
# 记录日志（十六进制字符串）
|
||
hex_str = ' '.join(f'{b:02X}' for b in response_bytes)
|
||
logging.warning(f"[{port_name}] 扫码数据(十六进制): {hex_str}")
|
||
|
||
# 更新数据（使用十六进制字符串）
|
||
self.data['scanner'] = hex_str
|
||
|
||
# 写入文件并通知回调
|
||
self._write_data_to_file()
|
||
# 使用"扫码数据: xxx"格式通知回调
|
||
callback_data = f"扫码数据: {hex_str}".encode('utf-8')
|
||
if 'scanner_data' in self.callbacks:
|
||
self.callbacks['scanner_data'](port_name, callback_data)
|
||
return True
|
||
else:
|
||
logging.warning("扫码响应数据为空")
|
||
|
||
# 如果无法解析，则直接返回失败
|
||
return False
|
||
except Exception as e:
|
||
logging.error(f"处理扫码数据总体异常: {e}")
|
||
return False |