Image processing as an integration tool between a dam safety system and smart grids

Author(s): Alex Lopes de Oliveiraa, Luiz Carlos Magrinia, Hae Yong Kimb, Edvaldo Fábio Carneiroc, Júlio César Pinfaric
aFDTE, R.Cap.Otávio Machado-525, SaoPaulo, 04718-000, Brazil
bEscola Politécnica da USP, Av. Prof. Luciano Gualberto, tr. 3, 158 , SaoPaulo, 05508-900, Brazil
cCESP, Av. Nossa Senhora do Sabará, 5312, Sao Paulo, 04447-011, Brazil
International Journal of Smart Grid and Clean Energy, vol. 4, no. 3, July 2015: pp. 209-215
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.4.3.209-215

Abstract: A widely used configuration to monitor minor displacements in concrete dams of hydroelectric power plants is based on the joint use of direct and inverted pendulums. By measuring the degree of inclination of the pendulum wire in both the X and Y axis, it is possible to measure the amount of displacement. In this work, a system capable of performing automated readings of the pendulum wires inclination, through the image processing technique, is presented. A processing methodology combining the calculation of the x component, the gradient signal and the Hough transform, was adopted for this purpose.

Keywords: Smart grid, dams monitoring, image processing, hough transform

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