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The Journal of The Korea Institute of Intelligent Transport Systems Vol.6 No.3 pp.174-182
단거리전용통신 노변기지국의 예비부품수 및 교체시기 산정
The Estimation of the Number of Spare Parts and the Changing Time about DSRC Road Side Equipment
Abstract
There are not many studies on the maintenance and replacement for the ITS equipments. Most of ITS center has no comprehensive regulation on the equipment replacement. This study was focusing on estimation of equipment replacement period and the number of spare parts in stock using the actual failure data of Road Side Equipment (RSE) by Dedicated Short Range Communication (DSRC). The failure data showed a type of bath-tub curves. The data, however, did not fit to any probability distribution curve, which means that the preventive replacement cannot be strongly applied for the RSE. In the aspect of practical strategy, this study suggest that repairing cost and failure frequency be used for decision of replacement of RSE after the 1 or 2 year warrant period. The future study needs to include more RSE failure data as well as other equipments of the ITS.
