67 lines
2.0 KiB
Python
67 lines
2.0 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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模拟ESP32发送16宫格热成像数据响应
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用于测试APP端的UDP接收功能
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"""
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import socket
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import json
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import time
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import threading
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def create_mock_thermal_data():
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"""创建模拟的16宫格热成像数据"""
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import random
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grid = []
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for i in range(16):
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# 生成25-45度的随机温度
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temp = round(25 + random.random() * 20, 1)
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grid.append(temp)
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return {
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"type": "thermal_grid",
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"timestamp": int(time.time() * 1000),
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"grid": grid
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}
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def udp_server():
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"""UDP服务器，监听APP请求并响应"""
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server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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server_socket.bind(('0.0.0.0', 8899)) # 监听8899端口
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print("模拟ESP32 UDP服务器启动，监听端口8899...")
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print("等待APP端连接...")
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while True:
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try:
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# 接收请求
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data, addr = server_socket.recvfrom(1024)
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command = data.decode('utf-8').strip()
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print(f"收到来自 {addr} 的命令: {command}")
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if command == "GET_THERMAL_GRID":
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# 创建模拟数据
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thermal_data = create_mock_thermal_data()
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response = json.dumps(thermal_data)
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# 发送响应
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server_socket.sendto(response.encode('utf-8'), addr)
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print(f"已发送16宫格数据到 {addr}: {len(response)} 字节")
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print(f"数据预览: {thermal_data['grid'][:4]}...")
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else:
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# 其他命令的简单响应
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response = f"OK:{command}"
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server_socket.sendto(response.encode('utf-8'), addr)
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print(f"已响应: {response}")
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except Exception as e:
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print(f"服务器错误: {e}")
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if __name__ == "__main__":
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try:
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udp_server()
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except KeyboardInterrupt:
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print("\n服务器已停止")
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