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Reliability Assessment Criteria of Module for the LED traffic signal  

Kim, Jin-Sheon (Reliability Assessment Center, Korea Institute of Lighting Technology)
Park, Chang-Kyu (Reliability Assessment Center, Korea Institute of Lighting Technology)
Kim, Dae-Kyung (Dept. of Statistics, Chonbuk National Univ.)
Jeong, Hai-Sung (Dept. of Multimedia Engineering, Seowon Univ.)
Publication Information
Journal of Applied Reliability / v.10, no.4, 2010 , pp. 265-278 More about this Journal
Abstract
Module of the LED traffic signal is the core component for the care of driver and walker. Also it is important one to control the traffic. If it is against the criteria of brightness, it is the source of the people's death and traffic congestion. Therefore, it is a list of articles desired the security of stability. However, there is not the analysis of failure and not preserve the uniformity of quality. Therefore, it is necessary to establish the criteria of appreciation for the module of the LED traffic signal to analysis the data of failure. In this paper, we investigate the performance test, environment field test and test of reliability appreciation to improve the reliability. We also set up the criteria of success decision using the real measurement data.
Keywords
LED a traffic signal; performance test; environment test; life test; Weibull distribution;
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