Journal of Hebei University(Natural Science Edition) >

2015 , Vol. 35 >Issue 2: 210 - 216

DOI: https://doi.org/10.3969/j.issn.1000-1565.2015.02.018

Design of a CPU-card-based Gas meter?

  • MA Tao ,
  • GAO Yukang ,
  • YANG Shuming
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  • 1.School of Mechanical Engineering，Ningxia University，Yinchuan 750021;2. Technology R & D Center，Yinchuan Tianjia?Energy Technology Co., Ltd., Yinchuan 750200

Received date: 2014-10-09

  Revised date: 2014-12-09

  Online published: 2015-03-25

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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

Cite this article

MA Tao , GAO Yukang , YANG Shuming . Design of a CPU-card-based Gas meter?[J]. Journal of Hebei University(Natural Science Edition), 2015 , 35(2) : 210 -216 . DOI: 10.3969/j.issn.1000-1565.2015.02.018

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