Tunnel lighting intelligent dimming method

Abstract

The invention provides a tunnel lighting intelligent dimming method which includes the steps: acquiring brightness information, color temperature information and meteorological information outside a tunnel and traffic volume parameters inside the tunnel; determining brightness reduction coefficient of a tunnel entrance according to the traffic volume parameters, the meteorological information andthe color temperature information entering the tunnel; calculating the object brightness of the tunnel entrance according to the brightness information acquired outside the tunnel and the brightness reduction coefficient of the entrance; determining the object color temperature of the tunnel entrance according to the meteorological information and the color temperature information; adjusting the brightness and the color temperature of the tunnel entrance according to the object brightness and the object color temperature of the tunnel entrance. The tunnel lighting intelligent dimming method changes the shortcoming that time-phased and seasonal constant brightness is simply adopted without taking color temperature and weather effect into consideration in the prior art, the brightness information, the meteorological information and the color temperature information outside the tunnel are comprehensively considered, the color temperature and driving visual demands of a driver are successfully introduced into a tunnel dimming strategy, adaptability and the requirement of tunnel dimming for human eye vision are effectively improved, and tunnel driving safety can be improved.

Description

technical field

[0001] The invention relates to the technical field of tunnel lighting, in particular to an intelligent dimming method for tunnel lighting. Background technique

[0002] The rapid growth of China's economy has enabled the vigorous development of road traffic construction. Highway tunnels are widely used in highway traffic construction due to their advantages of overcoming height difference, reducing slope, shortening mileage, saving land, and protecting the environment. The total number of highway tunnel construction and the number of mileage opened to traffic in my country have been increasing year by year, especially in the past five years, the growth rate has been particularly fast. By the end of 2016, there were 15,181 highway tunnels nationwide, an increase of 1,175 compared with the end of the previous year. The mileage opened to traffic reached 14.0397 million meters, an increase of 1.3558 million meters over the end of the previous year. Among them...

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