通过串口下面连接读卡器读取卡号，上面通过UDP服务连接PC端，将读取到的卡号上报给PC端，同时PC端也可以给程序下发配置文件-Read the card reader is connected through the serial port is connected below, PC end of the UDP services, will be submitted to read to the number to the PC terminal, PC terminal can also