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Study of Data Access System Based on Wireless Sensor Network

Author: FanKui
Tutor: SongLiangTu
School: University of Science and Technology of China
Course: Pattern Recognition and Intelligent Systems
Keywords: Wireless sensor networks ZigBee Low - power power supply design
CLC: TN929.5
Type: Master's thesis
Year: 2010
Downloads: 162
Quote: 1
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Abstract


Wireless sensor network is a large number of perception , self- organization of computing power and communication capabilities of the tiny sensor nodes , the distributed network system . Wireless sensor networks to obtain the data transmission via GPRS terminal to a remote host computer , enabling remote monitoring of field data acquisition . Anhui agricultural scientific and technological achievements into capital projects - agriculture real - time access to information and management system digitization pilot ( 2007GB24910458 ) support , the paper focuses on the study based wireless sensor network remote data acquisition system design . In this paper, do the following work : wireless sensor network - based data acquisition system hardware design , detailed design of the system 's power supply module , power rectifier , filtering , and anti-jamming technology ; design a unified sensor interface module , for example : the standard current -to-voltage module , voltage conversion accuracy . Brief Zigbee protocol stack , and then the actual needs of the project on the basis of the protocol stack for secondary development to meet the needs of the project . In the present system, the use of the cluster-tree network topology to effectively expand the wireless network coverage area , the final trial developed by the secondary system software, application good . 3 design a wireless sensor network - based data access platform . Through the software platform for the remote monitoring of the operation of wireless sensor networks deployed in monitoring the scene , send commands and data reception , display and record, and provide the alarm function will not set the threshold range sensor data record and give the alarm , and for managers to make timely decisions .

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