一种基于三套1553B总线同步的前置主机测试方法
By using a front-end host test method based on three sets of 1553B buses, the problem of time asynchrony between three redundant single machines in launch vehicle testing was solved, achieving precise bus time synchronization and integrated rocket-ground testing, thus improving the reliability and efficiency of testing.
CN116049076BActive Publication Date: 2026-07-17SHANGHAI AEROSPACE CONTROL TECH INST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI AEROSPACE CONTROL TECH INST
- Filing Date
- 2022-12-29
- Publication Date
- 2026-07-17
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Figure CN116049076B_ABST
Abstract
本发明公开了一种基于三套1553B总线同步的前置主机测试方法，包括S1前置主机三路1553B总线板卡同时启动，进入总线测试项目所需的总线板卡工作模式；S2前置主机以首个总线测试项目总线板卡启动的系统时间作为初始零时刻，通过总线板卡时钟进行计时；S3前置主机获取三路1553B总线时间，对三路1553B总线时间进行周期性的冗余表决，得到表决后的总线时间；S4利用表决后的总线时间周期性的同步更新三路1553B总线时间；S5前置主机通过各路1553B总线周期性获取各总线单机消息，根据各总线单机消息判断三路1553B总线时间的同步性能。本发明保证了总线时间基准的精准性和同步性。
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