冗余性LKJ屏幕显示器的可靠性设计与实施  

Reliability Design and Implementation of Redundant LKJ Screen Display

作　　者：崔少军 CUI Shaojun(Science and Technology Equipment Center,Maintenance Branch,National Energy Xinshuo Railway Co.,Ltd.,Jungar Banner 010300,China)

机构地区：[1]国能新朔铁路有限责任公司机务分公司科技装备中心,内蒙古准格尔旗010300

出　　处：《通信电源技术》2020年第21期45-48,共4页Telecom Power Technology

摘　　要：LKJ屏幕显示器是人机的交互终端,主要帮助司乘人员完成使用操作和用户数据输入,并实时显示各种数据信息、状态信息以及各种语音提示信息,是实现LKJ系统与司乘人员交互的纽带。但是,目前LKJ屏幕显示器依旧为单机系统,LKJ主机的热备冗余设计和工作机制在架构上存在天然不足。LKJ显示器任何一个模块出现故障,都将无法提供操作和观察功能,意味着LKJ系统工作失效,只能依靠乘务员操纵列车以较低的速度运行至前方车站等待救援或维护人员抢修,大大影响了铁路运输效率,且存在行车风险。为了进一步提高LKJ屏幕显示器的可靠性和应急处理能力以保证行车安全,在屏幕显示器故障失效的情况下使列车运行监控装置能够继续正常工作,重点对LKJ屏幕显示器进行了冗余性开发,以提高整个运行监控装置记录系统设备运行的可靠性。LKJ screen display is the interactive terminal of man-machine,mainly to help the crew to complete the operation,user data input,real-time display of a variety of data information,status information and a variety of voice prompt information.It is the link to realize the interaction between LKJ system and drivers.However,at present,LKJ screen display is still a stand-alone system,and compared with the thermal redundancy design and working mechanism of LKJ host,there is a natural deficiency in architecture.When any module of LKJ display fails,the function of operation and observation cannot be provided,which means the LKJ system fails to work.At this point,the train can only rely on the stewards to operate at a low speed to the front of the station to wait for rescue or maintenance personnel rush repair.It not only greatly affects the efficiency of railway transportation but also threatens the safety of driving.To further improve the reliability of LKJ screen display and emergency handling capacity,to ensure driving safety.In the case of the failure of the screen display,the train operation monitoring device can continue to work normally.It is particularly urgent to develop the redundancy of LKJ screen display and improve the reliability of the whole operation monitoring device recording system.

关 键 词：冗余性 可靠性 行车安全 功能失效 

分 类 号：U28[交通运输工程—交通信息工程及控制]