Short Distance Wireless Technology Used In Automatic Reading System

Along with the rapid development of national economy, various industrial and public meters are getting an extensive application day by day, and scatter in a large area. The way of traditional metering mode not only expends a great deal of manpower and material resources, but also can cause many other problems, for example cann't get the correct data in time. But the Automatic Meter Reading system, using the computer and communication technologies, can solve the problems. It can get more exact datas in time, reduce the manpower, and overcome many other shortcomings. Because the complicate circumstance of the electric power system, only using one method can not satisfy actual request. So according to the actual situation and using the suitable ways of communication, the system can work stability and suit the request, therefore communication is the key of the Automatic Meter Reading system.In recent years, along with the development of communication and computer technologies and other related technologies, the short distance wireless communication becomes used more and more. Wireless Local Area Net(WLAN),Bluetooth,ZigBee,Ad Hoc and wireless mesh network(WMN) technologies have made great progress. Automatic Meter Reading system using this wireless technology, can overcome many difficulties, for example short circuit, line break and so on, also can maintain the system easily.This text tells some ways of communication used in Automatic Meter Reading system, and uses wireless communication and other communications to make up the system. This way can make the system more flexible and solve some shortcomings of the traditional system. The text also tells the hardware structure of the terminal and communication protocols and so on.The system uses C8051F310 as processor and CC1100 wireless chip as a wireless transceiver to make up the wireless correspondence mold piece, and write corresponding software, to complete the wireless transceiver task. According to the characteristics of short distance wireless and draw lessons from the popular communication techniques, design a suitable routing protocol for the wireless system. The system using the methods of automatic routing and self-organization network to collect the datas in a particular district, and then through data concentration and GPRS or other methods collect datas in a large area to complete automatically meter reading task.The practice shows that the Automatic Meter Reading system using short distance wireless is running stably and reliably, reaches the design request. It is of great significance to improving the safety and economical operating level of distribution network and enhancing the energy management and power supply quality.