[1] Wu Jianfeng, Yu Zhongzhou, Li Jianqing, Wang Lei, et al. Transmission cable fault detectorbased on waveform reconstruction [J]. Journal of Southeast University (English Edition), 2013, 29 (1): 48-51. [doi:10.3969/j.issn.1003-7985.2013.01.010]

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Transmission cable fault detectorbased on waveform reconstruction()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

29

Issue:

2013 1

Page:

48-51

Research Field:

Automation

Publishing date:

2013-03-20

Info

Title:

Transmission cable fault detectorbased on waveform reconstruction

Author(s):

Wu Jianfeng¹;  Yu Zhongzhou¹;  Li Jianqing¹;  Wang Lei²;  Li Xiaoming¹

¹ School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China
² School of Automation, Nanjing Institute of Technology, Nanjing 210013, China

Keywords:

cable fault test;  waveform reconstruction;  fault position location;  time-domain pulse reflection

PACS:

TP216

DOI:

10.3969/j.issn.1003-7985.2013.01.010

Abstract:

In order to improve the accuracy of cable fault position location at a low cost and make the testing results intuitive, a cable fault detector based on waveform reconstruction is designed. In this detector, the cable fault position is located based on the time-domain pulse reflection(TDR)principle. A pulse waveform is injected in the tested cable, and a high-speed comparator with changeable reference voltages is used to binarize the test pulse waveform to a binary sequence on a certain voltage. Through scanning the reference voltage in a full voltage range, multi-sequences are acquired to reconstruct the pulse waveform transmission in the cable, and then the pulse attenuation feature, electrical open circuit fault, electrical short circuit fault, and the fault position of the cable are diagnosed. Experimental results show that the designed cable fault detector can determine the fault type and its position of the cable being tested, and the testing results are intuitive.

References:

[1] Xu Binggeng, Li Shengxiang, Chen Zongjun. Communication cable line fault testing techniques [M]. Beijing: Beijing University of Posts and Telecommunications Press, 2000.(in Chinese)
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[10] Wu Jianfeng, Li Jianqing, Wang Yinan, et al. A wired sensor network nodes ranging method[J]. Instrument Technique and Sensor, 2012(2):71-73.(in Chinese)
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Memo

Memo:

Biography: Wu Jianfeng(1975—), male, doctor, lecturer, wjf@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.61240032), the Natural Science Foundation of Jiangsu Province(No.BK2012560), the College Scientific and Technological Achievements Transformation Promotion Project of Jiangsu Province(No.JH-05), the Science and Technology Support Program of Jiangsu Province(No.BE2012740).
Citation: Wu Jianfeng, Yu Zhongzhou, Li Jianqing, et al.Transmission cable fault detector based on waveform reconstruction[J].Journal of Southeast University(English Edition), 2013, 29(1):48-51.[doi:10.3969/j.issn.1003-7985.2013.01.010]

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