Design and Implementation of Monitoring Network System for Strong Motion Seismograph Based on Internet
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摘要: 密集布设的MEMS强震仪台网获取的准实时强震观测数据，可以为震后灾情快速判断和平时地震学基础研究提供科学依据。本文阐述了利用3G/4G无线通信和L2TP（Layer Two Tunneling Protocol，第二层通道协议）VPN（Virtual Private Network，虚拟专用网络）技术，基于互联网组建MEMS（Micro Electromechanical System，微机电系统）强震仪监测网络的主要步骤和实现过程，实现了MEMS数据的实时传输。提供了一种简单的组网模式，为建立灵活、实用、覆盖面广，并具有一定安全性的密集监测网络提供参考。Abstract: The quasi-real-time strong motion observation obtained by the dense MEMS seismic seismograph network can provide efficient data for the rapid judgment of the post-earthquake disaster. This paper described the main steps and implementation process of MEMS accelerograph monitoring network system based on Internet, by using 3G/4G wireless communication and L2TP VPN technology, to realize the real-time transmission of MEMS data. Taking a simple networking model as an example, the results will help to provide a reference for establishing a flexible, practical, wide coverage intensive monitoring network with a certain security.
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Key words:
- MEMS /
- Monitoring network /
- L2TP
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表 1 VPN技术与OSI协议层关系
Table 1. Relationship between VPN technology and OSI protocol layer
OSI层次 VPN技术 应用层 SSL VPN 网络层 IPSec VPN 数据链路层 PPTP、L2TP 
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