一种基于导航接收机的星历参数在FLASH中动态更新存储方法
By adopting a shared FLASH storage sector for every four satellites and a dynamic update mechanism in the navigation receiver, the problem of rapid positioning recovery in abnormal situations is solved, which alleviates storage space shortage, reduces the number of erase and write cycles, and extends the life of the FLASH chip.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SPACE STAR TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing navigation receivers cannot quickly restore positioning after abnormal power loss or reset and restart, resulting in longer positioning time and possible errors. Furthermore, insufficient FLASH storage space and excessive number of erase and write cycles affect the service life.
By adopting a method where every four satellites share one FLASH storage sector, combined with the dynamic update mechanism of RAM and FLASH, and through periodic overall relocation and validity judgment, the storage and update of ephemeris parameters are optimized to ensure rapid recovery of positioning and extend the life of FLASH chips.
This technology enables navigation receivers to quickly restore positioning in abnormal situations, alleviates the problem of insufficient storage space, reduces the number of times the FLASH chip needs to be erased and rewritten, and extends its service life.
Smart Images
Figure CN120872239B_ABST