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首页> 外文会议>International Conference on Computers in Railways; 2004; Dresden; DE >ATP/ATC subsystem testing and validation using a HIL test rig
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ATP/ATC subsystem testing and validation using a HIL test rig

机译：使用HIL测试台进行ATP / ATC子系统测试和验证

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Automatic Train Protection (ATP) systems ensure that trains comply with speed restrictions and prevents them passing red signals. They are designed in order to automatically act to slow or stop the train where trains exceed speed limits or pass signals at danger. Their safety and reliability is then crucial for the safety and efficiency of the whole railway system. A correct estimation of distance to target and actual velocity is fundamental to evaluate residual braking resources, in terms of available deceleration, in order to reach the targets at the required speeds. The so-called odometry algorithm is the ATP subsystem devoted to train speed and travelled distance evaluation: it is composed by a series of sensors and a software procedure that acquires and manages the information from the sensors. Odometry estimation accuracy has a great influence on the whole ATP system behavior and then has to be carefully designed and verified. The validation of such devices could be performed with test runs, but this procedure has some disadvantages, for example, it is expensive and presents management difficulties (since these test activities have to be integrated with the normal rail traffic), testing conditions are not completely controllable etc. In order to overcome all these problems, Trenitalia S.p.A. and the Energetics Department of Florence University has designed and realized a HIL (Hardware In the Loop) test rig for the type approval of odometry devices. In this work the main features of the odometry device developed for the Italian ATP system (named SCMT) will be shown, the criteria used to design the tests will be resumed, then the architecture of the test rig will be presented. The final part of the work will summarize the results obtained from the testing activities and an estimation of the odometry subsystem performance (in terms of speed and travelled distance accuracy).
机译：自动列车保护（ATP）系统可确保列车符合速度限制，并防止列车通过红色信号。它们的设计是为了在列车超过速度限制或在危险情况下通过信号时自动采取行动使列车减速或停止。因此，它们的安全性和可靠性对于整个铁路系统的安全性和效率至关重要。正确估计到目标速度和实际速度的距离，对于评估可用的减速度下的剩余制动资源，以便以所需速度达到目标，是至关重要的。所谓的里程计算法是专用于训练速度和行进距离评估的ATP子系统：它由一系列传感器和从传感器获取和管理信息的软件程序组成。里程表估算精度对整个ATP系统行为有很大的影响，因此必须仔细设计和验证。可以通过测试运行来对此类设备进行验证，但是此过程存在一些缺点，例如，它昂贵且存在管理困难（因为这些测试活动必须与正常的轨道交通集成在一起），因此测试条件并不完全为了克服所有这些问题，Trenitalia SpA和佛罗伦萨大学能源学系设计并实现了HIL（硬件在环）测试装置，用于里程计设备的型式认可。在这项工作中，将展示为意大利ATP系统开发的里程计设备的主要功能（命名为SCMT），将恢复用于设计测试的标准，然后将介绍测试装置的体系结构。工作的最后一部分将总结从测试活动中获得的结果以及里程计子系统性能的评估（就速度和行进距离精度而言）。

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