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Long-distance data communication based on wireless communication technology

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4 Author(s)
Cheng Zhang ; Coll. of Eng., South China Agric. Univ., Guangzhou, China ; Canxi Li ; Shuran Song ; Tiansheng Hong

Aimed at control automation and unmanned manage systems which are located in open country, field and orchard have difficult in putting wire, a wireless data communication system was designed. Wireless radio frequency technology was used as transmission interface in this system, STC89C52 micro control unit(MCU) was used as major controller and logic processer, wireless radio frequency chip CC1101 was used as data transfer, system was wired with computer by Universal Asynchronous Receiver/Transmitter. When master's data was received by MCU, it would control CC1101 to send data, CC1101 would finish handling frame, modulating signal and sending data automatically. Signal demodulation was finished by receiver when it detected signal, data was sent to computer by MCU, and then wireless data transit was achieved. Through tests, the system's communication distance could achieve 131m with the low power module CC1101 and 633m with the high power module CC1101 in opened environment. In the occluded environment, the distance would be decreased to 366m with the high power module CC1101. The system's communication distance also could achieve 289m at the orchard environment with the middle power module CC1101. At the frame lost rate of two points which apart 100m was 17.8%.

Published in:

Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on

Date of Conference:

8-10 Aug. 2011