PC-MEMS Ground Motion Data Acquisition And Intensity Quick Report System

In recent years,with the development of Micro-Electro-Mechanical System(MEMS)technology,it has became possible to use MEMS to deploy the ground motion parameter rapid report station to improve the timeliness and reliability of the rapid report.The research and development of a new technology system for earthquake early warning in my country is in its infancy.According to the technical requirements of the PC-side MEMS ground motion data acquisition and quick report system,combined with the C/S software architecture,with edge computing as the technical idea,this paper moves the calculation of ground motion parameters to The client,greatly improving the timeliness and reliability of the system during a major earthquake.This article focuses on the key technical issues required for using MEMS as ground motion data acquisition,reception,and quick report,and conducts research on site classification,software algorithms,software structure,network communication,and software system parameters.The main work is as follows:1.Research on the method of large-scale site classification,and proposed a method of site classification based on BP neural network.The final classification result of Chinese strong motion station is that the classification accuracy rates of I,II and III are 28.2%,87.6% and 71.9% respectively.And compared with the venue data of the capital area,the classification accuracy rates of the capital area I,II and III venues are8.7%,70.7%,and 79.6%,respectively.It is proved that the regional limitation of the classification of venues using this method is not big,and it can be used for the classification of venues nationwide.2.This paper put forward the system structure,function structure and design of the MEMS earth shaking data collection and rapid reporting system on the PC side,which guaranteed the stability of the software in the process of use,as well as the time and reliability of the information in the transmission process.This paper also designs and implements the network communication protocol,which ensures that no ambiguity and reliability of parameter transfer occur during ground motion data transmission.The paper designs and implements the communication protocol between MEMS and system devices to ensure the accuracy of ground motion data collection,analysis and transmission.3.This paper analyzed and discussed the technical parameters of the PC-side MEMS ground motion data acquisition and quick report software,put forward the technical parameters for evaluating the entire software system,and next the paper analyzed the parameters of the entire system using different center terminals and MEMS terminals.The paper obtained the parameter transmission delay in the case of different centers and MEMS ends,analyzed and discussed the results.