HOV lanes have been used in some Chinese cities since 2016. HOV lane, also known as multi-occupant lane, provides that buses, cars or trains with more than 2 people can be applicable to this lane, mainly for the purpose of improving road use efficiency, easing traffic congestion, promoting traffic energy conservation and emission reduction. But many drivers in order to deal with the traffic police inspection, often put dolls and other "fake" Numbers on the car, so how to deal with the traffic management department?

At this time, the infrared thermal camera will play its important role.

Any object whose temperature is higher than absolute zero (-273℃) will emit infrared radiation. The infrared thermal camera passively receives the infrared radiation of the object, and converts the invisible infrared radiation into visible and clear infrared thermal camera of the human eye through systematic processing. Different colors on the graph represent different temperatures.

How to use infrared thermal cameray to identify the number of vehicles on the HOV lane?

Currently, Wuxi, Jinan, Shenzhen and Chengdu have opened HOV lanes in China, but only Chengdu has adopted infrared thermal imaging technology. The road traffic equipment for HOV lane in Chengdu has the following significant characteristics: firstly, the color is yellow, and the general monitoring equipment is silver gray; Second, there are four independent equipment boxes, while ordinary equipment only has one. Third, it has more than one set of equipment to ensure vehicle-by-vehicle detection. For the vehicle with only the driver and no other passengers in the vehicle, the corresponding picture information formed by the infrared thermal camera will be transmitted back to the background system, as one of the basis for illegal determination.

Compared with other monitoring methods, the advantages of infrared thermal imaging technology are that it does not rely on visible light, has a long detection distance, and has a variety of display methods. However, cars are high-speed moving objects in the process of driving, and ordinary infrared thermal camera is prone to drag shadows in the picture during shooting. Yoseen high-speed infrared thermal camera can solve this problem. The thermal response time is short, only 2ms, and it is specially used for shooting high-speed moving objects with clear images.