| 摘要 |
The present invention relates to a time marking system for an earthquake recorder and a control method thereof which enables precise time marking of sampling data transmitted to a remote server from the earthquake recorder and the error verification of the result of the time marking. [Reference numerals] (12) GPS receiver;(20) Analog signal processing unit;(26) A/D converter;(32) Sampling control unit;(34) 1PPM generator;(36) Master clock creator;(44) Data display unit;(46) Data memory;(48) MCDFIR filter;(50) Earthquake sensor;(AA) Buffer memory |
