平板式汽车制动智能检测系统的开发 2

摘     要

汽车行使安全问题是日益引起国家、社会关注的重大社会经济问题之1。我国的汽车保有量正在急剧上升，今后若干年中汽车行驶安全问题将会更加尖锐。而汽车制动系统故障又是引发行车事故的主要原因。随着汽车数量的增多和好行驶速度的提高，汽车制动性对保障交通安全尤为重要。为减少道路交通事故，我国有关法规明确规定对在用汽车必须经过定期检测合格后才允许上路行驶，在汽车定期检测中，制动性能被作为判定车辆安全技术状况的主要因素。
因此，利用现代检测技术和先进的技术产品，尽快研制出具有现代先进水平的汽车制动性能检测系统对保障交通安全、保护人民生命财产安全具有重要的意义。
本文介绍了我们设计的基于PC机和单片机技术的汽车制动性能检测系统设计。我们系统地研究了汽车制动系统的设计理论、设计方法，依据汽车制动性能检测相关法规，研究并开发出平板式汽车制动智能检测系统。该系统采用分布式管理方式，主控机采用PC机，数据采集系统采用AT89C51为中央处理器的单片机系统，主控机与数据采集系统之间通信联系采用RS-232串行口进行通信。
文中详细讨论了采用这些技术设计的汽车制动性能检测系统的设计方法。包括检测系统的总体设备配置、硬件布局、工位分配、接口驱动等硬件设计方法；通讯系统设计、控制软件结构、人机界面等软件设计。系统软件共分PC机与单片机两大块，其中：单片机部分软件采用MCS-51汇编语言编写，PC部分采用Microsoft公司的 Microsoft Visual Basic 6.0应用程序开发工具设计的。针对检测数据的实时存储要求，文中也讨论了数据库的设计以及检测软件与数据库的接口设计。 （科教作文网 zw.nseac.com整理）
关键词：汽车；制动；检测；PC机；单片机；数据库

Abstract

Safety of automobile driving is an increasingly serious economic problem that society puts emphasis on. The present quantity of automobile in our country is increasing rapidly, which makes safety of automobile driving an even more urgent problem. According to statistic, among the traffic accidents caused by automobile breakdown, braking breakdown causes most. Automobile braking performance has become more important while the present quantity and the speed of automobile are increasing. In order to reduce traffic accidents, some rules of law have definitely stated that automobiles must get regular test before their driving. And during the regular test automotive braking performance is one of the key factors that determine automobile safety technical condition.
Therefore, it is of great importance to design and research advanced automobile brake performance test system by the application of technical of the research of modern test system and advanced product.
This article introduces us to an test system design on automobile brake performance inspection based on PC and SCM （Single Chip Micyoco）technology. Systematical study about the theory and methods of design automobile’s brake system. According to the correlative statute of the automobile’s brake performance tests, we developed a type of system software for the intelligent tabulate automobile’s brake intellective test system. The system adopts distributive management, PC is used as the master-control, and data collection system adopts AT89C51 as the CPU of the SCM. Using RS-232 to implement the communication between master-control and data collection system.
 Including hardware design methods such as the equipment of the whole test system, the layout of hardware, sections allocation, signal amplifier. Software design methods such as communication system, control software architecture, the interface between people and machines, etc. In the system, the part of SCM is compiled with the language of MCS-51, and the software for master-control is compiled with the application tool, Microsoft Visual Basic 6.0 of Microsoft Company. According to the real-time save requirement of data, the design of database and the interface design of the database and the inspection software are also discussed. 您可以访问中国科教评价网（www.NsEac.com）查看更多相关的文章。
Key words:  automobile;  brake;  test;  PC;  SCM;  database

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