Study And Implementation Of Data Wireless Transmitting System Based On GPRS In A Monitoring System

With the development of communication technology, more and more wireless communication systems are used as data transmission in industries. In order to make it more flexible, real-time and economical, a remote GPRS (General Packet Radio Service)monitoring system is developed in this thesis. By using existing GPRS network resources, taking the advantage of wide covering, good transmitting characteristics, a convenient wireless data transmission method has been put forward for present data collecting system.Firstly, the background of this project and GPRS basic theories are introduced in this thesis, secondly, the design of a GPRS-DTU (Data Terminal Unit) is put forward in detail that is made of a MCU and a BENQ M22 module. The whole design of hardware and software of the DTU is described. This kind of GPRS Terminal supports transparent data transmission and data can be deposited in a RAM. GPRS-DTU can dial automatically and minitoring whether the net is working or not working. At...