交通运输系统工程与信息

交通运输系统工程与信息 ›› 2012, Vol. 12 ›› Issue (增1): 20-24.

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一种ETC芯片的集成化设计与实现

孙卫真*,1,马磊1，潘海军2   

  1. 1.首都师范大学 信息工程学院，北京100048；2.北京逸海京通科技有限公司 北京100070
  • 收稿日期:2011-12-12 修回日期:2012-02-13 出版日期:2012-12-28 发布日期:2012-06-06
  • 作者简介:孙卫真（1963-），男，上海金川人，硕士导师.

Design and Implementation of ETC Integrated Chip

SUN Wei-zhen 1, MA Lei 1, PAN Hai-jun 2   

  1. 1.School of Information Engineering, Capital Normal University, Beijing 100048, China;2. Beijing Ezcomm Technology Co., Ltd, Beijing 100070, China
  • Received:2011-12-12 Revised:2012-02-13 Online:2012-12-28 Published:2012-06-06

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摘要： 中国电子不停车收费（ETC）行业目前所使用的OBU，由于分离元器件搭建所产生的频点漂移现象导致系统性能不稳定，采用二极管峰值检波技术导致OBU产品成本增加.本文通过对国内外所采用ETC车载设备（OBU）的研究，以及对国标的分析，设计出一种系统集成化方案.采用系统集成化方法将原本由分离器件搭建的各个电路模块集成于一个芯片，从而解决目前国内所采用的ETC车载设备（OBU）系统不稳定、设备成本高、返修率高等一系列问题.并最终通过系统仿真和实际路测，证实该设计的正确性、可行性和可推广性.该设计申请了多项国家专利.

关键词: 智能交通, 电子不停车收费, 车载电子标签, 微波集成电路, 射频

Abstract: For the current used OBU in Chinese ETC industry, the discrete components structure always leads to system instability, and the diode peak detecting technology increase the cost. This paper studies the OBUs both at home and abroad and analyzes the National Standard, and then proposes a system integration solution. Instead of building the system with discrete components, system integration solution integrates every submodule into one single chip. It solves a series of problems such as system instability, high BOM cost and high repairing rate. The design is proven to be correction, feasibility for the by system simulation based on filed test. The design has applied several patents in China.

Key words: intelligent transportation, ETC, OBU, MMIC；RF

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