Design of Ladder-Type and Multi-rate Power Meter Based on ZigBee

A ladder-type and multi-rate pricing meter based on ZigBee is designed in order to carry out the policy of saving energy and cutting emissions and to take into account a power company´s measure of the peak-valley time-of-use tariff. This design can achieve the purpose of improving energy efficiency and intelligentizing electricity supervision. The energy meter uses low-power micro-controller MSP430FE427 to implement ladder-type and time-of-use pricing and to realize wireless meter reading through low-power chip CC2430 in 2.4GHz radio frequency system. The anti-electricity-stolen function is realized by using the energy metering module ESP430CE1 which is embedded in MSP430FE427. After the architecture of ZigBee protocol stack and the work flow of operating system abstraction layer (OSAL) are analyzed, the program design of electricity metering is presented. As the terminal nodes of wireless meter reading system, the multi-function meter can easily implement wireless transmission of data, and can improve the accuracy and efficiency of the meter reading.