High-speed bright distinction measurement equipment null of illumination

摘要

PROBLEM TO BE SOLVED: To more efficiently and quickly perform a maintenance measuring work such as disconnection inspection of illuminating lamps, illuminance measurement of various lighting equipments, or the like by loading a lighting detecting photosensor, position detecting optical sensor, and an axle sensor on a measuring. ;SOLUTION: A lighting detecting photosensor 3, a position detecting optical sensor 4, and an axle sensor 5 are loaded on a measuring vehicle 2. The lighting detecting photosensor 3 measures and automatically judges, from the brightness measurement of various illuminating lamps 1 set within a tunnel, the disconnection position and lamp kind of illuminating lamp, and the lamp life and replacing time thereof. The position detecting sensor 4 projects a light from the measuring vehicle 2 to a polarized reflector 6 stuck to the tunnel inner wall to optically detect the measuring position at high speed with high precision by use of a detecting system applying a reflection type photoelectric switch. The axle sensor 5 detects the rotating speed of the axle of the measuring vehicle 2 and measures the rough distance from the pulse number. Thus, the lighting in the tunnel can be precisely inspected even by a high-speed measurement.;COPYRIGHT: (C)1998,JPO