Title
Experimental Research on Data Synchronous Acquisition Method of Subsidence Monitoring in Submarine Gas Hydrate Mining Area.
Abstract
The data synchronous acquisition is crucial to the seafloor subsidence monitoring system for gas hydrate mining areas based on microelectromechanical sensors (MEMS). Because the independent and high-precision time reference sources on land cannot be used on the seafloor, especially in the deep sea, a relative time synchronization method based on input/output (I/O) and controller area network (CAN) bus was proposed to realize the internal time synchronization of the system. To demonstrate the feasibility of the proposed method, tests including the deformation test of the MEMS sensor array under high pressure, synchronous accuracy test, and landslide and collapse simulation tests were carried out. The synchronization method was performed once every 24 h, and the time drift was reduced to 0.38 ms from more than 30 ms, demonstrating that method can achieve consistent internal time of the system. The method does not require additional hardware devices and has adjustable accuracy.
Year
DOI
Venue
2019
10.3390/s19194319
SENSORS
Keywords
Field
DocType
data acquisition,time synchronization,subsidence monitoring,submarine gas hydrate mining area
CAN bus,Synchronization,Clathrate hydrate,Microelectromechanical systems,Data acquisition,Submarine,Electronic engineering,Subsidence,Real-time computing,Landslide,Engineering
Journal
Volume
Issue
ISSN
19
19.0
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
8
Name
Order
Citations
PageRank
Jiawang Chen193.87
Chen Cao259118.03
Yongqiang Ge311.38
Huangchao Zhu400.34
Chunying Xu500.34
Yan Sheng600.34
Lieyu Tian700.34
Hanquan Zhang800.34