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A Wireless Environmental Temperature Monitoring System

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3 Author(s)
Dong JunHong ; Electron. Coll. Of Eng., Naval Univ. of Eng., Wuhan, China ; Yin Ming ; Xie Feng

This system is a wireless environmental temperature monitoring device within 10m, which includes a monitoring terminal and a maximum of 255 nodes. Monitoring terminal and each node communicate by the ways of the UART asynchronous communication. In the transmitter, the control information and data packaged by the two top-down protocols is send to the transmitter modulation input in the form of a standard serial data. Then the signal is modulated by FSK modulation, lastly FSK signal amplified is send out by the antenna; In the receiver, the weak signal is amplified and demodulated by the phase-locked loop techniques. Then the data is sent to the microcontroller's serial port and processed. As a simple circuit structure of this system, and fewer low-power device, the system is stability and energy.

Published in:

Internet Technology and Applications, 2010 International Conference on

Date of Conference:

20-22 Aug. 2010