河北大学学报(自然科学版) ›› 2015, Vol. 35 ›› Issue (2): 210-216.DOI: 10.3969/j.issn.1000-1565.2015.02.018

• 电子工程与计算机科学 • 上一篇    下一篇

基于CPU卡的燃气表控制系统设计

马涛1,高宇康2,杨术明1   

  1. 1.宁夏大学,机械工程学院,银川 750021;2.银川天佳能源科技股份有限公司,技术研发中心,银川,750200
  • 收稿日期:2014-10-09 修回日期:2014-12-09 出版日期:2015-03-25 发布日期:2015-03-25
  • 通讯作者: 马涛
  • 作者简介:杨术明 (1974-),男,宁夏吴忠人,回族,宁夏大学副教授,博士,主要从事智能化检测与监控技术和精细农业的研究.
  • 基金资助:
    宁夏回族自治区科技支撑项目(4130196)

Design of a CPU-card-based Gas meter?

MA Tao1,GAO Yukang 2,YANG Shuming1   

  1. 1.School of Mechanical Engineering,Ningxia University,Yinchuan 750021;2. Technology R & D Center,Yinchuan Tianjia?Energy Technology Co., Ltd., Yinchuan 750200
  • Received:2014-10-09 Revised:2014-12-09 Online:2015-03-25 Published:2015-03-25
  • Contact: MA Tao

摘要: 本文针对采用逻辑加密卡的燃气表安全保护措施缺乏,加密性差等问题,采用模块化的设计方法,进行基于CPU卡的燃气表系统设计,完成CPU卡接口模块,ESAM模块,显示模块的硬件电路设计及CPU卡的内部认证,外部认证等系统软件的开发,实现智能燃气表与CPU卡的信息交换、液晶显示、阀门关断、流量检测、燃气费用计算以及预付费等功能,提高了燃气表用户数据的安全性

关键词: 燃气表, CPU卡, ESAM 模块, 认证

Abstract: In this paper, aiming at the problem that the gas meter, equipped with logic encryption cards, lacked safety protection measures and poor encryption, a CPU-card-based gas meter was designed with the help of modular design method. The hardware included CPU card interface circuit, ESAM module circuit and LCD display circuit. The software mainly included internal authentication and external authentication. The whole system realized the information exchanging between gas meter and CPU card , information display with LCD ,valve control,gas flow checking, gas costs calculation and prepayment. User data of the gas meter was well improved.

Key words: gas meter, CPU card, ESAM module, certification

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