A wireless meter reading system is designed, which consists of ZigBee ad hoc network, GPRS network and meter reading center. ZigBee ad hoc network has three parts: data collector, data transceiver and concentrator. The ZigBee node consists of the CC2430 module, sensor, antenna, power supply and power amplifier. The concentrator applies ARM as main processor and GPRS module to achieve remote data transmission via ZigBee network. The main task of concentrator software is to monitor all ZigBee nodes and meter reading center. The ...