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With the rapid developments of mobile device and wireless communication, it brings a new challenge for acquiring the
spatial information. A mobile mapping system based on differential global position system (DGPS) integrated with
embedded geographic information system (EGIS) is designed. A mobile terminal adapts to various GPS differential
environments such as single base mode and network GPS mode like Virtual Reference Station (VRS) and Master-
Auxiliary Concept (MAC) by the mobile communication technology. The spatial information collected through DGPS is
organized in an EGIS running in the embedded device. A set of mobile terminal in real-time DGPS based on GPRS
adopting multithreading technique of serial port in manner of simulating overlapped I/O operating is developed, further
more, the GPS message analysis and checkout based on Strategy Pattern for various receivers are included in the process
of development. A mobile terminal accesses to the GPS network successfully by NTRIP (Networked Transport of
RTCM via Internet Protocol) compliance. Finally, the accuracy and reliability of the mobile mapping system are proved
by a lot of testing in 9 provinces all over the country.
Ling Pei,Qing Wang, andJuan Gu
"A mobile mapping system for spatial information based on DGPS/EGIS", Proc. SPIE 6795, Second International Conference on Space Information Technology, 67956O (10 November 2007); https://doi.org/10.1117/12.775319
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Ling Pei, Qing Wang, Juan Gu, "A mobile mapping system for spatial information based on DGPS/EGIS," Proc. SPIE 6795, Second International Conference on Space Information Technology, 67956O (10 November 2007); https://doi.org/10.1117/12.775319