Design And Realize Of Wireless Networking System Of Heat Meat Reading

The charging system of heat-supplying in our north area has always been very nonstandard right now, and a series of problems which is caused by it have already restricted further development of city focus heat-supplying. It's necessary to make some reforms on the charging system of heat-supplying for using the heat resource reasonably. Heat meter is the key device for implementing reforms on heat-supplying system in city and carrying out charging on heat-supplying. With the development of techniques, using wireless sensor network technique for meter reading, charging management and controlling will become the trend of future. There are massive kinds of wireless Radio Frequency chip on sale, and there are many differences between them, therefore it's important for us to pick up one which has reasonable price and better quality from them.This design, which use the method of wireless sensor technique for data transmission, constitute and realize the wireless networking system of heat meter reading. According to the needs of system, Each of these wireless heat meters use P89LPC938 as control core, and use the radio frequency chip CC1100 of Chipcon as key module of wireless data transmission. First of all, This article elaborates systematically hardware circuit design and software program of the entire system of wireless heat meter; Then it designs the wireless communication protocol during the procedure of building up the wireless meter reading network, also constitute the wireless meter reading network by researching on the algorithm of wireless multi-hop which is based on minimum energy consumption; it analyzes precision and power consumption of the system at last.Applying wireless sensor network technique into the system of heat-meter reading, which is the innovation point of this topic, result in constituting the wireless networking system of heat meter reading. It's proved by experiment that the wireless heat meter controlled by P89LPC938 have a lot of advantages, such as small volume, low power, high precision. Also this heat meter will be on good sale and popular because of low price. Most importantly, the wireless network system of heat-meter reading, which is constituted by CC1100 wireless module, can transmit the data of every heat meter to remote control center punctually, effectively and accurately. So it will accelerate the process of meter reading in inhabitant plot.