Design of Lighting System for Tunnel Pavement Detection
In order to ensure the high detection accuracy of the tunnel pavement detection system,this study designed a dual-light source lighting system suitable for automatic pavement detection systems to achieve uniform illumination of the measured pavement.The system uses a 9 × 7 rectangular LED array with a rectangular compound parabolic concentrator for tilted illumination of the 5 m × 2.2 m road surface.The distance between the two light sources is 1.3 m,with tilts of 13° and 26° towards the rear and outer side of the vehicle,respectively.After continuous optimization,at an illumination height of 1.8 m,the system achieves an illuminance uniformity of 84.24％,an average illuminance of 21 135 lx on the measured road surface,and a light energy utilization rate of 58.5％.Compared to existing illumination systems for tunnel pavement detection,the system designed in this paper has the advantages of good stability,high illumination,and a large illumination range.The tolerance requirements generally meet modern manufacturing standards,and it has the advantages of low cost,long lifespan,compact structure,and easy installation and adjustment.This system is capable of meeting the illumination needs for tunnel pavement detection.
lighting system designtunnel pavement detectionLED arraydual light source lightingparabolic condenser
万方数据
维普
