Integration of hydrological observations into a Spatial Data Infrastructure under a Sensor Web environment

作     者：Zhong Zheng Nengcheng Chen Pengfei Li Wei Wang 

作者机构：State Key Lab for Information Engineering in SurveyingMapping and Remote SensingWuhan UniversityWuhan 430079China 

出 版 物：《International Journal of Digital Earth》 (国际数字地球学报（英文）)

年 卷 期：2013年第6卷第S02期

页      面：22-40页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：This work has been supported in part by the National Basic Research Program of China(973 Program)under Grant 2011CB707101 by the National Natural Science Foundation of China under Grant 41023001,41171315,and 41021061 by the program for New Century Excellent Talents in University under Grant NCET-11-0394 by National High Technology Research and Development Program of China(863 Program)under Grant 2012AA121401 

主　　题：Sensor Web data management service middleware Sensor Observation Service Web Feature Service 

摘      要：Various sensors connected to the World Wide Web are used to obtain real-time hydrological ***,real-time management and utilization of such distributed in situ observations in the cyber-physical environment becomes possible.A Sensor Observation Service(SOS)chaining Web Feature Service(WFS)method is proposed to integrate geographical reference observation data collected by a hydrological Sensor Web into a virtual *** method hides the complexity of a series of information and service models in the Sensor Web realm to enable the integration of heterogeneous distributed hydrological data sources into a Spatial Data Infrastructure(SDI).The core components-a dynamic schema transformer and automatic information extractor-were designed and *** SOS schema is matched to WFS schema that uses the schema transformer *** information extractor extracts and serves features automatically,conforming to standard SOS operations for observation retrieval and *** experiments conducted on the Jinsha River tested this proposed *** show that the proposed approach allows the integration of SOS servers into legacy applications that have a higher degree of availability within many ***,this is accompanied with the drawback that only a limited part of the SOS functionality is available to clients.