NDLI: Distributed data acquisition unit based on GPS and ZigBee for electromagnetic exploration

Content Provider	IEEE Xplore Digital Library
Author	Rujun Chen He Zhangxiang Qiu Jieting He Lanfang Cai Zixing
Copyright Year	2010
Description	Author affiliation: School of Information Science and Technology, Central South University, Changsha, China (Cai Zixing) \|\| Non-seismic Survey, Bureau of Geophysical Prospecting, China National Petroleum Corporation, Zhuozhou, China (Rujun Chen; He Zhangxiang; Qiu Jieting; He Lanfang)
Abstract	The design and implementation of the distributed data acquisition unit (DDAU), which is based on GPS synchronization and ZigBee, are described. The DDAU is used in three-dimensional electromagnetic exploration targeted for oil and gas (hydrocarbon) detection. It is composed of data acquisition and DSP module, embedded control module, GPS sync and timing module, and power supply module. The data acquisition and DSP module, which owns 4 signal channels, amplifies, converts, and processes weak signals from electric field and magnetic field sensors. The embedded control module, which includes ZigBee OEM board, temperature sensor, 10M bps Ethernet, 4 UARTs, 4 SPIs, 2 SSCs, 8 GB NAND flash and 8 MB NOR flash, is based on AT91RM9200 and Linux 2.6. The GPS sync and timing module, which ensures precise synchronized data acquisition in field, generates sync signal and precise clock for A/D convertor and digital signal processing. A large-scale distributed data acquisition system can be built by combining large amount of DDAUs to a wireless sensor network based on ZigBee. The testing result showed that the RMS noise of each analog channel was less than 0.63 uV, and the THD is less than −111 dB.
Starting Page	981
Ending Page	985
File Size	847160
Page Count	5
File Format	PDF
ISBN	9781424428328
ISSN	10915281
DOI	10.1109/IMTC.2010.5488223
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Data acquisition Global Positioning System ZigBee Digital signal processing Signal processing Synchronization Timing Magnetic sensors Petroleum Hydrocarbons signal conditioning distributed data acquisition unit (DDAU) electromagnetic exploration GPS synchronization data acquisition
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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