基于P89LPC922的Mifare卡预付费智能水表的设计与实现  

The Design and Realization of Prepayment Mifare Card Intelligent Water Meter Based on P89LPC922

作　　者：徐亚芳[1] 王志刚[1] 王晓玲[1] 甘静军[1] 

机构地区：[1]河北工业大学信息工程学院,天津300401

出　　处：《电子科技》2007年第7期75-78,共4页Electronic Science and Technology

摘　　要：介绍了一种低功耗智能水表的设计方案。该水表以Philips公司的低功耗单片机P89LPC922为控制芯片,配有电源电路、阀门驱动电路、计量电路、Mifare卡的读写电路、液晶显示等部分。根据该方案设计的水表已投入市场。The design of an intelligent low - power water meter is introduced in this paper. It is based on the microcontroller P89LPC922 produced by Philips. The system consists of power circuit, valve - drive circuit, measure circuit, Mifare card reader- writer, and LCD display. The water meter based on this design is now commercially available on the market.

关 键 词：P89LPC922 MIFARE卡 预付费 

分 类 号：TN709[电子电信—电路与系统]