Open AccessDesign of Beidou timing module
Author(s) -
Quanyu Sun
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/508/1/012207
Subject(s) - computer science , real time computing , filter (signal processing) , satellite , clock drift , beidou navigation satellite system , global positioning system , gnss applications , telecommunications , synchronization (alternating current) , clock synchronization , computer vision , channel (broadcasting) , engineering , aerospace engineering
The Beidou timing module receives the Beidou Satellite Information, calculates the time and positioning information, transmits the time and timing information through various external interfaces, and has the function of short message forwarding. This paper presents a system design scheme for the Beidou time-keeping module, which uses adaptive filter switching technology to achieve accurate and stable time-keeping results, by automatically switching synchronous clock source (Beidou, IRIG-B (DC), internal high-stability crystal Oscillator) to complete time service, Beidou module with seamless switching, short-circuit protection, fault detection and diagnosis, health management and other functions.