Research on Distributed Synchronous Acquisition System for Seabed Terrain Deformation Monitoring

Natural gas is an important green (low carbon) energy source, and natural gas hydrate is another molecular form of natural gas (aqueous). Natural gas hydrate is a clathrate hydrate formed by methane (CH4) and free water under certain conditions. Under normal temperature and normal pressure, natural gas hydrate is easily decomposed into methane and water, and its solid phase requires low temperature and high pressure conditions, especially low temperature. The decomposition of natural gas hydrate will destroy the engineering mechanical structure of sediments, causing land subsidence, and can also cause geological disasters such as subsidence of seabed, landslides and even earthquakes, threatening the exploration and exploitation of hydrates. This paper studies the data synchronization acquisition problem of seabed terrain deformation monitoring, and discusses how to realize fast and correct data acquisition, and how to solve the time synchronization of the internal data of the system when the independent high-precision time reference source common on the land cannot be used.