【作者】 谢刚；

【导师】 刘正熙；

【作者基本信息】 四川大学 ， 计算机应用技术， 2006， 硕士

【摘要】 本文主要研究的是TTS系统(旅行时间系统)测试及其测速模块算法的改进。TTS系统是某市97个路口建设具有先进水平的交通旅行时间采集、分析、处理和发布系统。软件测试是TTS系统软件开发中的不可或缺的一环,软件测试能避免错误的产生和消除已经产生的错误,使程序中的错误达到尽可能低的程度。对保证按时将高质量、高性能的系统交付给用户有重要的意义。本文主要工作有四个,一是TTS系统视频采集部分测试,二是TTS系统测速模块测试,三是TTS系统用户界面测试,四是TTS系统测速模块算法的改进。TTS系统视频采集部分是指安装在路口的前端设备中的视频采集模块,能检测车道上的机动车辆并自动识别其车牌号。前端设备将采集的车牌号、车道流量等信息传给中心系统,中心系统对这些信息进行处理并发布。作者主要对TTS系统视频采集部分的摄像机控制、防护罩等进行了测试。TTS系统测速模块是运行在通信设备上的核心模块,测速模块的作用是判断车辆是否超速,若车辆超速,则将车辆列入黑名单报警。作者主要对测速模块的识别、测速、摄像机调整等功能进行了测试。TTS系统用户界面测试主要是测试TTS系统的用户界面是否符合标准和规范,如直观性、一致性、灵活性、舒适性、正确性、实用性等。测速模块算法的改进主要是用虚拟线圈来代替实际感应线圈,通过设定阈值,来判断车辆是否通过,车辆先后通过前后两线圈后,通过车辆行驶时间、距离等来计算车辆的速度。由于改进前的算法的检测设备为实际感应线圈,其维护和安装都要花费大量的成本。特别是当雷雨天气时,实际感应线圈容易损坏,系统维护十分困难。而采用虚拟线圈不存在这些缺点,因此在两者更多还原

【Abstract】 The main research of the paper is the test and detect speed module algorithm improvement of TTS system. TTS system is a advanced level system of 97 intersections to collect、analyze、manage and issue traffic travel time in some city. Software test is a important loop in TTS system’s software development. Software test can avoid producing of error and eliminate error which was produced. It can make the error of program to low grade. It ensure consign high-quality and high-powered system to users.There were four works in the paper. One is test of TTS system video collection part, the second is test of TTS system detect speed module, the third is test of TTS system user interface, the forth is detect speed module algorithm improvement.Video collection part of TTS system is video collection module of forward equipment which is installed in the intersection. It can inspect automobile in the roadway and capture their vehicle-plate. Forward equipment will send the information of vehicle-plate and vehicle stream to the center system. Author tested camera control、shields and so on. Detect speed module of TTS system is a kernel module which used in communication equipment. Detect speed module can estimate if vehicle run in excessive speed. If vehicle run in excessive speed, the information of vehicle will enter blacklist police. TTS system user interface test is mainly test user interface whether according with criterion,such as intuitional, consistency、agility、easiness、correctness、practicability. The improvement of detect speed module algorithm mainly is using virtual loop instead of practical inductive loop,though setting a threshold, we can verdict whether vehicle passed the loop or not. After vehicle passed the front loop and the back loop, we can use vehicle’s run-time and distance calculating vehicle’s speed. Because detect equipment is practical inductive loop before algorithm improvement, its maintenance and installation更多还原