摘要
介绍了一种红外式电费预付费系统的工作原理和设计方法,给出了主要硬件电路及电度表控制板、红外卡和收费器,同时给出了应用程序的流程图和设计思想.经实际运行证明,该系统抗干扰能力强、成本低、使用方便,适于推广应用.
Abstract: This paper presents the working principle and design method of the prepayment system for Watthour Meter by IR that is of our trial product. The main hardware circuit is given including control board of Watthour Meter, IR card and charge unit. The working flowchart and design thought are presented also. It is proved that the system is of high resisting interference, low cost, and simple to use. So it will be easy for it to spread.
出处
《哈尔滨理工大学学报》
CAS
2002年第5期66-69,共4页
Journal of Harbin University of Science and Technology
