118 lines
3.7 KiB
Python
118 lines
3.7 KiB
Python
"""
|
||
设备B示例 - 接收端
|
||
模拟第二台设备，接收站点数据（用户名、线路名称、站点编号）并应答
|
||
"""
|
||
|
||
from serial_protocol import SerialProtocol, Command
|
||
from data_models import StationData, ResponseData
|
||
import time
|
||
import subprocess
|
||
|
||
|
||
def on_receive(cmd: int, data: bytes):
|
||
"""接收数据回调函数"""
|
||
print("\n" + "="*60)
|
||
print("[设备B] 收到数据")
|
||
print("="*60)
|
||
cmd_name = (Command(cmd).name if cmd in Command._value2member_map_
|
||
else 'UNKNOWN')
|
||
print(f"命令类型: 0x{cmd:02X} ({cmd_name})")
|
||
|
||
# 根据不同命令进行处理
|
||
if cmd == Command.HEARTBEAT:
|
||
print(">>> 收到心跳包")
|
||
# 可以回复ACK
|
||
device.send_ack()
|
||
print("<<< 已发送ACK应答\n")
|
||
|
||
elif cmd == Command.DATA_RESPONSE:
|
||
# 尝试解析站点数据
|
||
station_data = StationData.from_bytes(data)
|
||
if station_data:
|
||
print("\n📍 站点数据详情:")
|
||
print(f" 用户名称: {station_data.username}")
|
||
print(f" 线路名称: {station_data.line_name}")
|
||
print(f" 站点编号: 第{station_data.station_no}站")
|
||
|
||
# 根据站点编号执行不同逻辑
|
||
if station_data.station_no == 0:
|
||
print("\n🚀 站点编号为0，启动 actions.py")
|
||
# 启动 actions.py
|
||
|
||
subprocess.Popen(["python", "actions.py"], cwd="d:\\Projects\\cjgc_data")
|
||
|
||
if station_data.station_no > 0:
|
||
print(f"\n🚀 站点编号为{station_data.station_no}，启动 check_station.py")
|
||
# 启动 check_station.py
|
||
|
||
subprocess.Popen(["python", "check_station.py"], cwd="d:\\Projects\\cjgc_data")
|
||
|
||
# 创建统一格式的响应字典 {1:"xxx", 2:"xxx", 3:"xxx", ...}
|
||
response_dict = ResponseData.create_response(station_data)
|
||
print("\n📤 设备B统一响应格式:")
|
||
for key, value in response_dict.items():
|
||
print(f" {key}: \"{value}\"")
|
||
|
||
# 发送响应
|
||
device.send_data(ResponseData.to_bytes(response_dict))
|
||
print("\n<<< 已发送响应字典\n")
|
||
else:
|
||
# 如果不是站点数据，按普通消息处理
|
||
message = data.decode('utf-8', errors='ignore')
|
||
print(f">>> 收到普通消息: {message}")
|
||
device.send_ack()
|
||
print("<<< 已发送ACK\n")
|
||
|
||
elif cmd == Command.CONTROL:
|
||
if len(data) >= 1:
|
||
control_code = data[0]
|
||
params = data[1:]
|
||
print(f">>> 收到控制命令: 0x{control_code:02X}, "
|
||
f"参数: {params.hex()}")
|
||
# 执行控制逻辑...
|
||
device.send_ack()
|
||
print("<<< 已发送ACK\n")
|
||
|
||
|
||
# 全局变量，用于在回调中访问
|
||
device = None
|
||
|
||
|
||
def main():
|
||
global device
|
||
|
||
# 创建串口协议实例
|
||
# 注意: 设备B应该使用另一个串口，或者通过虚拟串口对连接
|
||
# Windows: 'COM2', Linux: '/dev/ttyUSB1'
|
||
device = SerialProtocol(port='COM2', baudrate=115200)
|
||
|
||
print("=" * 60)
|
||
print("设备B - 接收端")
|
||
print("=" * 60)
|
||
|
||
# 打开串口
|
||
if not device.open():
|
||
print("❌ 无法打开串口")
|
||
return
|
||
|
||
print(f"✓ 串口已打开: {device.port} @ {device.baudrate}")
|
||
|
||
# 启动接收线程
|
||
device.start_receive(on_receive)
|
||
print("✓ 接收线程已启动，等待接收数据...")
|
||
|
||
try:
|
||
# 保持运行
|
||
while True:
|
||
time.sleep(1)
|
||
|
||
except KeyboardInterrupt:
|
||
print("\n\n用户中断")
|
||
finally:
|
||
device.close()
|
||
print("串口已关闭")
|
||
|
||
|
||
if __name__ == '__main__':
|
||
main()
|