Time-delay Analysis of the Releasing on Earthquake Early Warning Information in Sichuan Area
By analyzing the delay of earthquake warning information release in the Sichuan region,we found that there were differences in the delay of warning information release through different channels:(1)the minimum delay of warning information released by earthquake early warning touch terminal can reach 0.002 seconds;(2)the release time-delay related to the earthquake warning APP is 0.065 seconds;(3)the time-delay of the earthquake warning emergency broadcasting terminal can be controlled within 1.5 seconds,reaching the second level release standard;(4)the delay of TV warning channels is affected by the number of pushed users.Specifically,the delay will exceed 1 second when the total number of users exceeds 500 000.Similarly,the delay will exceed 2 seconds when the total number of users exceeds 1 000 000.Therefore,we suggest that deploying earthquake warning touch terminals and emergency broadcasting terminals at the locations with strong network signals can reduce time-delay and increase the number of servers to share the transmission,push and distribution pressure of the television earthquake warning pre-security system,and achieve the goal of reduce the time-delay in release warning information through television channels.
earthquake early warningearthquake early warning terminaltime-delay of the releasing information
NETL
NSTL
万方数据
