update

tcpserver.js

@@ -7,7 +7,7 @@ let mongourl = `mongodb://root:letian2024.@172.16.0.16:27017/letian?authSource=a
 
 const server = net.createServer((socket) => {
     socket.on('data', (data) => {
-        if((data)) {
+        if(isHeartbeat(data)) {
             let dataString = data.toString("hex");
             console.log(dataString, "----");
             socket.write(Buffer.from([0xD0, 0x00]));
@@ -59,9 +59,12 @@ server.listen(3001, () => {
     console.log(`tcp server启动，监听端口3001`);
 })
 
-function isHex(str) {
-  return /^[0-9A-Fa-f]+$/.test(str) && str.length  % 2 === 0;
-}
+const isHeartbeat = (buffer) => {
+  // 检查长度和内容是否匹配 0xC0 0x00
+  return buffer.length  === 2 && 
+         buffer[0] === 0xC0 && 
+         buffer[1] === 0x00;
+};
 
 
 function genInsertObj(gbkString, deviceNumber) {