2003 年 87 巻 11 号 p. 885-889
The ability to locate the position of light sources can be applied to the diagnosis of partial discharges in gas-insulated switchgears (GIS) as an indication of a fault. We propose a method using a database and illuminance meters. In this method, the positions of the illuminance meters affect the accuracy of locating a light source and there are lots of combinations of position of illuminance meters. We describe a method that uses genetic algorithm (GA) to optimize the positions of illuminance meters for locating light sources. A cubic room with six illuminance meters, with each surface having a sensor, is assumed for the optimizing calculation. The accuracy improves from 23.3%, for the configuration with each sensor centered in the surface, to 41.0% for the optimized one. In expanding the detected space to a neighborhood space, . the accuracy reaches 92.9%. We also consider optimization of rooms with one or two shading surfaces.