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Open AccessArticle

External Breaking Vibration Identification Method of Transmission Line Tower Based on Solar-Powered RFID Sensor and CNN

1
School of Electrical and Automation Engineering, East China Jiaotong University, Nanchang 330013, China
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School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China
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Authors to whom correspondence should be addressed.
Electronics 2020, 9(3), 519; https://doi.org/10.3390/electronics9030519
Received: 9 February 2020 / Revised: 19 March 2020 / Accepted: 19 March 2020 / Published: 21 March 2020
(This article belongs to the Section Microwave and Wireless Communications)
This paper proposes an external breaking vibration identification method of transmission line tower based on a radio frequency identification (RFID) sensor and deep learning. The RFID sensor is designed to obtain the vibration signal of the transmission line tower. In order to achieve long-time monitoring and longer working distance, the proposed RFID sensor tag employs a photovoltaic cell combined with a super capacitor as the power management module. convolution neural network (CNN) is adopted to extract the characteristics of vibration signals and relevance vector machine (RVM) is then employed to achieve vibration pattern identification. Furthermore, the Softmax classifier and gradient descent method are used to adjust the weights and thresholds of CNN, so as to obtain a high-precision identification structure. The experiment results show that the minimum sensitivity of the proposed solar-powered RFID sensor tag is −29 dBm and the discharge duration of the super capacitor is 63.35 h when the query frequencies are 5/min. The optimum batch size of CNN is 5, and the optimum number of convolution cores in the first layer and the second layer are 2 and 4, respectively. The maximum number of iterations is 10 times. The vibration identification accuracy of the proposed method is over 99% under three different conditions. View Full-Text
Keywords: Tower vibration identification; RFID sensor; Convolutional neural network; Relevance vector machine Tower vibration identification; RFID sensor; Convolutional neural network; Relevance vector machine
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MDPI and ACS Style

Deng, F.; Wen, K.; Xie, Z.; Liu, H.; Tong, J. External Breaking Vibration Identification Method of Transmission Line Tower Based on Solar-Powered RFID Sensor and CNN. Electronics 2020, 9, 519.

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