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首页> 外文会议>International Symposium on Certification of GNSS Systems Services >The new European Satellite Navigation System Galileo as a kernel for a Railway Collision Avoidance System
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The new European Satellite Navigation System Galileo as a kernel for a Railway Collision Avoidance System

机译：新的欧洲卫星导航系统伽利略作为铁路碰撞避免系统的内核

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The GALILEO programme is Europe's initiative to develop a civil global navigation satellite system that provides highly accurate and reliable positioning, navigation and timing services. The satellite navigation system GALILEO will provide instantaneous positioning services at the metre level as a result of improved orbits, better clocks, dual frequency and enhanced navigation algorithms as well as integrity information. For safety of life applications, local elements can be integrated to provide more accurate positioning, communication and/or information services. For example, GALILEO Local Elements will be developed and adapted to meet specific requirements in rail transportation. This allows also for a modernization of automatic train control technology. This is advisable because of the still enormous amount of collisions between trains or other kinds of obstacles (construction vehicles, construction workers, pedestrians), even if comprehensive and complex technology is extensively deployed in the infrastructure which should help to avoid such collisions. Experiences from the aeronautical Traffic Alert and Collision Avoidance System (TCAS) as well as the maritime Automatic Identification System (AIS) have shown that the probability of collisions can be significantly reduced with collision avoidance support systems, which do hardly require infrastructure components. In this article, we introduce our "RCAS" approach consisting only of mobile ad-hoc components, i.e. without the necessity of extensions of the railway infrastructure. Each train determines its position, direction and speed using the satellite navigation system GALILEO and broadcasts this information, complemented with other important information such as dangerous goods classifications in the region of its current location. This information can be received and evaluated by other trains, which may - if a potential collision is detected - lead to traffic alerts and resolution advisories up to direct interventions (usually applying the brakes).
机译：伽利略计划是欧洲倡议开发民间导航卫星系统，提供高度准确可靠的定位，导航和定时服务。卫星导航系统伽利略将在仪表级别提供瞬时定位服务，这是改进的轨道，更好的时钟，双频和增强的导航算法以及完整性信息。为了安全应用，可以集成本地元素以提供更准确的定位，通信和/或信息服务。例如，将开发伽利略局部元素，适用于符合铁路运输的特定要求。这也可以实现自动列车控制技术的现代化。这是可取的，因为列车或其他类型的障碍物（建筑车辆，建筑工程，行人）之间的仍然巨大碰撞，即使在基础设施中广泛部署了全面和复杂的技术，这应该有助于避免这种碰撞。航空交通警报和碰撞避免系统（TCA）以及海上自动识别系统（AIS）的经验表明，通过碰撞避免支持系统可以显着降低冲突的可能性，这几乎不需要基础设施组件。在本文中，我们介绍了我们的“RCA”方法，这些方法仅包括移动ad-hoc组件，即，无需铁路基础设施的扩展。每列火车使用卫星导航系统伽利略的位置，方向和速度来广播这些信息，与其他重要信息相辅相成，如当前位置的区域中的危险品分类。可以通过其他列车接收和评估该信息，其中可能 - 如果检测到潜在的碰撞 - 导致交通警报和解决方案，直到直接干预措施（通常申请制动器）。

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