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A low-cost PDGNSS-based sensor network for landslide monitoringchallenges,possibilities,and prospects 被引量:1
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作者 Jessica Glabsch Otto Heunecke Stefan Schuhbäck 《International Journal of Digital Earth》 SCIE 2010年第4期365-383,共19页
Simple navigation receivers can be used for positioning with sub-centimeter accuracy in a wireless sensor network if the read-out of the carrier phase(CP)data is possible and all data are permanently broadcast to a ce... Simple navigation receivers can be used for positioning with sub-centimeter accuracy in a wireless sensor network if the read-out of the carrier phase(CP)data is possible and all data are permanently broadcast to a central processing computer.At this base station an automated near real-time processing takes place and a precise differential GNSS-based positioning of the involved sensor nodes is computed.The paper describes the technical principles of such a system with its essential demands for the sensing,the communication,and the computing components.First experiences in a research project related to landslide monitoring are depicted.Of course the developed system can also be embedded for location finding in a widespread multifunctional geo sensor network.The quality of the obtained result is restricted due to the fact that the CP measurements must be recorded over a certain time span,usually a few minutes for every independent position solution.As far as possible a modular structure with commercial off-theshelf components,e.g.standard wireless local area network for communication,and in cooperation of existing proofed and powerful program tools is chosen.Open interfaces are used as far as possible. 展开更多
关键词 low-cost precise differential GNSS(LC PDGNSS) near real-time processing(NRTP) wireless sensor networks(WSNs) geo sensor networks(GSNs) landslide monitoring data acquisition 1.Introduction Geodetic monitoring of building structures and
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