1、Program plan

2、Program Description
　　Described here is based mainly on the wireless radio program. In actual use, but also could be considered GPRS, wireless LAN and other programs. The advantages of radio is an investment, no operating expenses, the demerit is that the lower rate, but also the need to address the issue of frequency.
　　Wireless radio means of communication used by the upper bit of the server machine from time to time polling data. Because of the relationship between the shared communication channels, the general non-use of digital initiatives under way on the delivery.

GPRS communication
　　
1、Program plan

2、Program Description
　　This program, TPC and the Internet using GPRS connection to connect the IP address when it is not fixed. Server using a fixed IP to connect to the Internet, it can be connected using the line. In the establishment of connections, you can send real-time data, historical data and alarm data.
　　TPC of the program used regular dial GPRS, on the way to send data. Can not be collected by the host computer on demand. Upon completion of data transmission, TPC is responsible for GPRS connection to hang up.