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Design and Implementation of A 2.4GHz Communication Module for Wireless Sensor Network Node

Author: SunZhiYuan
Tutor: ZhouDongXiang
School: National University of Defense Science and Technology
Course: Electronics and Communication Engineering
Keywords: Wireless sensor networks Wireless communication 2.4GHz nRF24L01 Anti-jamming Frequency agility
CLC: TN929.5
Type: Master's thesis
Year: 2010
Downloads: 281
Quote: 1
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Abstract


Wireless sensor network (WSN) is a hot research direction of the current field of information technology , it is a combination of sensor technology , embedded computing technology , distributed information processing technology and wireless communication technology , is a new information acquisition, processing and transmission technology has broad application prospects and great value in the field of military , industrial , and people's daily life . Sensor node is the foundation to build a wireless sensor network platform , micro embedded system is a signal acquisition , data processing , and wireless communication functions . To achieve data transmission between wireless sensor network node based on the single-chip wireless transceiver communication module is an ideal solution . Communication module based on single-chip wireless transceiver design and realization of the problem , do the following work: in the full study, based on the current development of industry- related fields , the paper proposes a 2.4GHz single-chip wireless transceiver nRF24L01 2.4GHz RF power amplifier the UP2206 sensor node communication module design . The program includes the overall framework of the system design , the interconnection between the various functional modules design , as well as various functional modules . The PCB is designed on this basis , the completion of the welding of each device and function modules , and the preparation procedures used for the point - to - point transmission of data between two modules . Tested communication module performance parameters , and quantitative analysis . The test results show that the the module working transmission distance reaches a certain level , to some extent, to extend the coverage of wireless sensor networks . Work in the 2.4GHz band wireless devices may cause interference , anti-interference performance of the communication module , a preliminary study , the nRF24L01 chip multi-channel characteristics to design a simple frequency agility protocol . The nRF24L01 chip , the protocol utilizes automatic answering and automatic retransmission function , the packet loss rate of the communication module in the data transfer process can reduce the reliability of communication , in less demanding applications in the data transfer rate can be improved .

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