摘要
瞬时故障是导致定位系统出现故障的主要表现形式,采用传统故障恢复方法受到噪音影响,存在恢复效果较差的问题,提出嵌入式车载导航双定位系统瞬时故障恢复方法研究.根据双定位系统架构分析结果,采用基于时间冗余故障恢复方法,结合静态调度原理,降低系统对时间冗余的需求,同时减少调度表中用于重新执行时隙数,使用周期性修复技术进行故障恢复.根据移动设备移动速度和位置重新配置定时器,由此完成对嵌入式车载导航双定位系统瞬时故障恢复.通过实验对比结果可知,该方法瞬时故障恢复时间较短,且最高恢复效果可达到95%,为车载导航系统安全控制研究奠定了基础.
Instantaneous fault is the main manifestation of the fault of the positioning system in vehicle navigation systems. The traditional fanlt recovery method is affected by noise, and the recovery effect is poor. Research of the instantaneous fault recovery method of the embedded vehicle navigation dual positioning system is proposed. According to the analysis results of the dual positioning system architecture, the time redundancy method based on time redundancy and the principle of static scheduling were used to reduce the system＇s time redundancy demand and the number of time slot in the scheduling table, and use periodic repair technology to recover the fault. The timer was reconfigured according to the speed and location of the mobile device, thus completing the transient fault recovery of the embedded vehicle navigation dual positioning system. The experimental results show that the instantaneous fault recovery time is shorter and the maximum recovery effect can reach 95%, which lays the foundation for the research on the safety control of the vehicle navigation system.
作者
朱荣军
ZHU Rong-jun(Anhui Technical College of Industry and Economy,Hefei 230051,China)
出处
《内蒙古民族大学学报（自然科学版）》
2018年第6期485-488,共4页
Journal of Inner Mongolia Minzu University：Natural Sciences
基金
2015年安徽省质量工程项目(2015zy113)
关键词
嵌入式导航
车载导航
双定位系统
瞬时故障
故障
恢复
Embedded navigation
Vehicle navigation
Dual location system
Transient fault
Failure
Recovery
