这是我给一个做射频卡的公司做的小程序，主要是将数据同时写入PRR8031芯片和数据库，包括一些数据类型转换、生成序列号等内容-This is what I do for a radio card companies do small procedures, the data is also written into the PRR8031 chips, and databases, including some data type conversion, such as serial numbe

通过RS232操作Inside公司的M-2102G读卡头，读写标签卡，更改标签卡密码。比MX3.0更操作简单。-Operationing Inside s M-2102G through the RS232 card reader, reading and writing tags, and change the password. MX3.0 more simple than that.

控制蓝牙读卡器可以通过usb或者蓝牙串口控制读卡器主动读取RFID标签的ID号。到后台的数据库去查询对应的产品信息。-Bluetooth reader controller.