EN50128在铁路信号安全软件测试中的应用研究

随着列车的不断提速,铁路信号系统作为保障机车车辆安全有序作业的重要安全设备,其软件的可靠性和安全性直接影响列车的运行安全,对铁路信号安全软件的测试就显得至关重要。通过借鉴欧洲铁路的安全相关技术,以铁路控制和防护系统软件标准EN50128为指导,重点论述了标准中软件测试各阶段的活动情况及独立性的体现,并对此标准在铁路信号安全软件测试过程中的应用进行了分析和研究。

Application Research of EN50128 in Safety-critical Software Test for Railway Signaling Systems

With the increase of train speed,the reliability and safety of the software of the signaling systems could directly affect the operation safety of locomotives and trains.It is essential to test safety-critical software for railway signaling system which protects orderly operation of rolling stock as safety-critical equipment.Through using the experience of European railway in safety technology for reference and adopting software standard EN50128 as a guide,we focused the discussion on the activities in all the stages of software testing and the independence of each stage according to this standard,and analyzed and studied the application of this standard in test the safety-critical software of railway signaling systems.