(For USM Staff/Student Only)

EngLib USM > Ω School of Electrical & Electronic Engineering >

Monitoring and fault diagnosis of electrical Installation using thermal imaging

Monitoring and fault diagnosis of electrical Installation using thermal imaging / Tiong King Hock
Kerosakan elektrik merupakan arus elektrik yang tidak normal melencong beban biasa. Kamera termal telah digunakan secara meluas bertahun-tahun untuk memantau dan memeriksa kerosakan termal peralatan elektrik dengan mengesan titik panas. Walau bagaimanapun, analisis manual imej inframerah untuk mengesan kerosakan dan mengklasifikasikan status peralatan mengambil masa yang panjang dan usaha, dan juga menyebabkan keputusan diagnosis yang salah. Untuk menangani masalah ini, teknik pemprosesan imej diperkenalkan untuk menganalisia kerosakan elektrik yang mungkin secara automatik dari imej inframerah. Dalam projek ini, kaedah Otsu, penyaringan Wiener dan penyamaan histogram dilaksanakan dalam menganalisis kerosakan elektrik. MATLAB dipilih sebagai platform untuk membangunkan algoritma untuk memproses imej inframerah. Pada peringkat pertama, imej inframerah akan dimuat naik ke komputer untuk menganalisis bahagian intensiti tinggi imej kerana bahagian-bahagian ini mewakili suhu panas yang lebih tinggi. Seterusnya, bahagian ini akan dipangkas dan kualiti imej-imej ini akan dipertingkatkan dengan penyamaan histogram dan penyaring Weiner. Kemudian, perbandingan antara arus aliran elektrik dalam keadaan yang normal dan keadaan yang rosak akan dijalankan. Selepas perbandingan, system akan memberi amaran kepada pengguna jika terdapat kemungkinan rosak arus aliran elektrik. Kesimpulannya, teknik diagnosis automatic dapat mengurangkan tenaga manusia yang banyak, masa dan kesilapan manusia dalam diagnosis kerosakan elektrik. _______________________________________________________________________________________________________ Electrical fault is any abnormal electric current bypass the normal load. Thermal camera has been widely used for many years to monitor and inspect thermal defects of electrical equipment by detecting the hot-spot. However, manual analysis of infrared images for detecting defects and classifying the status of the equipment may consume a lot of time and efforts, and may also lead to incorrect diagnosis. In order to tackle this problem, image processing technique is introduced to analyze the possible electrical fault automatically from infrared images. In this project, Otsu’s method, Wiener filter and histogram equalization are implemented in analyzing the electrical fault. MATLAB is chosen as a platform to develop the algorithm to process the infrared image. In the first stage, the infrared images will be uploaded to the computer to analyze the high intensity parts of the image because these parts represent higher temperature hot-spot. Next, the hot-spot regions of the image will be cropped and the quality of these images will be enhanced by histogram equalization and Weiner filter. Then, comparison between the image of normal current condition and image of possible fault region will be carried out. After the comparison, it will alert the users if there is any possible fault. In this project, the ordinary Otsu’s method is modified so that it is suitable to be used to segment and analyse the electrical fault. If a fault is found on the system, a message will be generated by the system to alert the user. In conclusion, the automatic diagnosis technique can reduce a lot of manpower, time and prevent human error in electrical fault diagnosis.
Contributor(s):
Tiong King Hock - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007654
Language:
English
Subject Keywords:
Electrical fault; Thermal camera; thermal defects
First presented to the public:
6/1/2018
Original Publication Date:
8/7/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 93
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-08-07 11:45:48.59
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

All Versions

Thumbnail Name Version Created Date
Monitoring and fault diagnosis of electrical Installation using thermal imaging1 2018-08-07 11:45:48.59