基于线阵CCD的汽车测速系统研究

2009 IITA International Conference on Control, Automation and Systems Engineering (case 2009) Pub Date : 2009-07-11 DOI:10.1109/CASE.2009.64

Yu Guangping, Xie Yangen

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引用次数: 4

摘要

摘要:设计了一种基于线阵CCD的汽车速度测量系统。采用线阵CCD作为前端检测器件，单片机利用边缘识别算法对CCD输出信号进行处理，实现瞬间对汽车的精确定位。通过这种方法，可以准确地测量汽车在斜坡上的速度。本文详细阐述了CCD的结构和工作原理，介绍了一种基于EPM7128 CPLD芯片的线阵CCD时序驱动设计方法，并介绍了测速系统的原理和组成。通过实验，该系统的测速范围为5m/h~160km/h，误差小于0.5km/h。目前，该系统已经成功地用于驾驶员在坡道上驾驶的检查系统。实验证明，该方法准确，反应灵敏。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Research of Automobile Speed Measuring System Based on Linear CCD

Abstract—One automobile speed measuring system based on linear CCD is designed. The linear CCD is the front detecting device, and the MCU processed the CCD output signal using the edge identification arithmetic to achieve automobile accurate localizing on one moment. In this way, the automobile speed can be measured accurately on slope. In this article, the architecture and principle of CCD have been elaborated in detail, one timing sequence driving design method of linear CCD based on the CPLD chip of EPM7128 is described, while the principle and composition of the speed measuring system are introduced as well. Through experiments, the speed measuring range of the system is 5m/h~160km/h and the error is less than 0.5km/h. Right now this system has already been successfully used as an examine system for drivers driving with a ramp. It has been proved that it is accurate with sensitive responsiveness.

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2009 IITA International Conference on Control, Automation and Systems Engineering (case 2009)

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