A Method for Dynamic Evaluation of Road Lighting Glare Using Imaging Photometer

Abstract

The present invention provides a method for performing dynamic evaluation on lighting glare of a road by using an imaging brightness meter. When a measurement vehicle drives to an initial measurement position, an imaging brightness meter disposed in a vehicle-mounted system of the measurement vehicle is controlled to rapidly shoot a to-be-measured region according to a measurement step length, so as to acquire image data comprising original brightness data of a road and lamp glare data. Therefore, not only brightness or illuminance of a center point of a glare source can be measured, but also brightness or illuminance of the entire glare source can be subjected to integral computation; an accurate glare threshold value increment TI close to the visual sensitivity of a driver can be obtained; the operation is simple and convenient; measurement difficulties and costs are greatly reduced; and measurement accuracy is improved.

Description

technical field [0001] The invention relates to a method for dynamically evaluating road lighting glare by using an imaging luminance meter. Background technique [0002] "CJJ45-2006 Urban Road Lighting Design Standards" stipulates the glare threshold increment TI requirements for road lighting, but due to the difficulty of on-site measurement of glare, there are many limitations in practical application, and the calculation is cumbersome. If the direct alignment measurement method is used, each glare source needs to be measured one by one, and the brightness, vertical illuminance and θ angle of each glare source must be measured. The labor cost is large and the accuracy is not high. Only glare can be measured. The luminance or illuminance of the center point of the source cannot be integrally calculated for the luminance or illuminance of the entire glare source, and an accurate glare threshold increment TI close to the driver's visual perception cannot be obtained. Conte...

AI Technical Summary

Problems solved by technology

[0002] "CJJ45-2006 Urban Road Lighting Design Standards" stipulates the glare threshold increment TI requirements for road lighting, but due to the difficulty of on-site measurement of glare, there are many limitations in practical application, and the calculation is cumbersome

If the direct alignment measurement method is used, each glare source needs to be measured one by one, and the brightness, vertical illuminance and θ angle of each glare source must be measured. The labor cost is large and the accuracy is not high. Only glare can be measured. The brightness or illuminance of the center point of the source cannot be integrally calculated for the brightness or illuminance of the entire glare source, and the accurate glare threshold increment TI close to the driver's visual perception cannot be obtained