基于信息纽扣的预付费电度表的设计

Design of Prepayment Watt-hour Meter Based on iButton

数字式预付费电度表目前主要采用IC卡,在性能方面存在一些不足。该设计所采用的智能卡是美国达拉斯半导体公司推出的一种智能化信息载体信息纽扣iButton。介绍利用信息纽扣组成预付费电度表的设计方法,重点描述信息纽扣的特点和使用方法,阐述相关的硬件和软件的设计方法。采用这种方案相对IC卡系统具有操作方便、稳定性高、便于携带、使用寿命长等特点。

At present, prepayment Watt- hour meter mainly uses IC,there are some shortages in the performance. The intelligent card used in this design is iButton,iButton is launched by Dallas Semiconductor （Dallas Semiconductor Corporation） . The design method of the prepayment Watt- hour meter by using iButton is introduced in this paper, characteristic and operation guide of iButton are emphasized. Method of hardware and software designing are discussed. Compared to IC system, this method has characteristics as easy operation, high stability, portability, long life and so on.