VxWorks在ATP车载设备中的应用

主要研究实时操作系统VxWorks在列车超速防护（ATP）系统车载设备软件设计中的应用。为了提升系统性能，研究一种新的软件设计方法从而对各种资源进行有效管理很有必要。基于VxWorks的ATP车载设备软件设计利用嵌入式实时操作系统的优势，简化了系统资源管理，在保证系统实时性、安全性的前提下，有效地降低了软件设计的复杂度，并使得软件具有良好的层次性和可移植性。作者首先简单介绍实时操作系统VxWorks，其次描述了ATP车载设备的功能以及硬件实现方法，重点研究了基于实时操作系统VxWorks下三模冗余结构的ATP车载设备的软件实现方法，最后探讨了VxWorks在应用开发过程中的优势。

The Application of VxWorks in ATP On-board Device

The author studied the application of VxWorks in ATP on-board device software design. It is necessary to introduce a new kind of method to design the software in order to enhance the system performance. The method that is used to design software of ATP on-board devices takes advantage of the real-time operating system. On the premise of guaranteeing the safety, reliability and real-time of the system, it simplifies the management of system resources, reduces the complexity of software design and improves the transplant and hiberarchy of the software. This paper introduces the real-time operating system VxWorks briefly. The function of the ATP on-board devices and the software implementation method are described. The software design based on RTOS VxWorks in ATP on-board devices with the triple modular redundancy structure is explored. The advantages of VxWorks in appeared during the development and application are discussed.