Research On Remote Meter Reading System Based On Zigbee Technology

ZigBee is a new short-range, low-power, low-cost wireless communication technology. It can achieve mutual coordination in the thousands of micro sensors based on IEEE802.15.4 wireless standard. ZigBee technology has wide market space in the smart home-building automation, industrial control, medical testing and etc, for its protocol simple, low-cost, feature-rich, network easily etch. Through comparison of the advantages and disadvantages of the traditional manual meter, IC card prepaid table, wired and remote meter reading meter system, the remote meter reading technology based on ZigBee will be one of the trends of remote meter reading system in the future, for its advanced technology, easy implement, high reliability, and easy-to-universal etc.The remote meter reading system has very strict criterion of the system power and anti-jamming performance. Therefore, the ZigBee technology, for its low-power , low-complexity and high anti-jamming ability, has been selected to build a new network model based on ZigBee in residential areas. The communication and energy-consumption are researched aimed at the model. The details are as follows:(1)To overcome the problem of high energy consumption and low reliability in the meter reading system, taking into account the practical application environment of meter reading networks in residential area, a new model of the meter reading system is designed according to the star and tree topology network model based on ZigBee in the paper. By analyzing each device functions and working principle of this network model, the design methods of the network layer is proposed in the paper, and the working process and data transmission between the various devices are described in detail.(2)To reduce the redundancy of the remote meter reading network and to improve success rate and accuracy of communication in network, based on the basic theories of node communication in the wireless sensor network, a new network model is proposed by marking use of star and Tree topology, and communications, anti-interference and energy- consumption of experiment aimed at the model have been tested. Its result indicates: Although it is only confirmed in the laboratory, it is also ensured that the high success ratio and the accuracy have the guarantee in the short distance scope.(3) In order to reduce the energy consumption of meter-reading nodes, in the processes of building the platform of remote meter reading network based on ZigBee, A new remote meter reading node which uses low-power Atmega88 microcontroller and remote transceiver CC1100 is designed. This research further enriches research field of remote reading meter technology base on ZigBee technology, establishes basis of cost reduction for remote reading meter system, and offers bases and methods for other research fields of ZigBee technology.