基于熱釋電無(wú)線傳感網(wǎng)絡(luò)的人體目標(biāo)識(shí)別系統(tǒng)
[Abstract]:Target detection is an important part of human motion recognition. Human motion recognition is a key technology in advanced man-machine interface, human motion analysis and intelligent monitoring. Pyroelectric infrared sensor is sensitive to infrared radiation at specific wavelengths, which makes it suitable for human target recognition. This paper mainly studies how to use infrared sensor to design a human body target recognition system based on wireless sensor network. The main research contents and methods can be summarized as follows: firstly, the structure, principle and characteristics of pyroelectric infrared sensor are introduced, and the original human body target recognition method based on pyroelectric infrared sensor is introduced. A new human body recognition method is proposed in which the three pyroelectric infrared sensor nodes are placed at the three vertices of the triangle, and all the sensing regions are divided into multiple sub-regions according to the three nodes' intersecting induction regions. The data of the human body target of the node are collected. Secondly, Zigbee wireless technology is introduced, including technical parameters, network architecture and network topology. According to the characteristics of Zigbee wireless technology, the monitoring terminal is designed to realize the transmission of wireless network. Thirdly, the hardware and software of human target recognition system are designed. At least three sensor nodes are needed in the hardware part of human target recognition system. Each sensor node is composed of motherboard, sensor module and Zigbee module. In the software part, the protocol gateway and monitor terminal are designed, through which the data transmission and monitoring are realized. Finally, the human motion information collected by pyroelectric sensor is analyzed and processed by BP neural network, and the recognition rate of human target recognition system is calculated.
【學(xué)位授予單位】:哈爾濱理工大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:TN92;TP212.9
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