| Lead-acid battery is the main variety of second power, it is widely used in electric power, communications, transportation and many other fields now. In practice, the life of lead-acid batteries is often less than the life of design cycle. There are two reasons, on the one hand, the use of charging and discharging process is unreasonable, on the other hand, the quality control measures of battery production process is not sufficiently reasonable, which is an important reason. Based on the analysis of lead-acid battery's performance characteristics, testing parameters and the advantages and disadvantages of commonly used monitoring system at present, this paper introduced the design of monitoring the parameters of lead-acid battery using wireless sensor networks.First of all, after the study of the principle of lead-acid battery and its charging characteristics, the main factors which affected chemical quality were pointed out. The paper figured out the method of monitoring battery parameters based on ZigBee. Then, the ZigBee wireless network technology is studied in detail. After comparing ZigBee with several current short-range wireless communication technology standards, the paper demonstrated the feasibility of use ZigBee technology in monitoring system design for storage battery. The ZigBee stack is probed in depth, especially its key concepts and principal methods of routing. The overall program of ZigBee sensor network nodes is designed.Finally, the design of hardware and software based on CC2430 chip and MSSTATE_LRWPAN protocol for ZigBee nodes was completed, which achieved the real-time detection and network transmission of lead-acid battery parameters including voltage, current and temperature during charge and discharge process. The performance of the network nodes was tested also. A preliminary PC software design was presented, which supplying a new data input channel to further study and design on intelligent charge-discharge control system.
|
PDF Full Text Request