An expressway traffic speed warning device and method for automatically adapting to fog and haze

Abstract

The invention discloses a haze-auto-adaptive expressway traveling speed early-warning device and method. The device comprises a CCD camera module, a microprocessor, an output module and a power supply; the CCD camera module is used for shooting scenery in front of a traveling vehicle and sending shot image information to the microprocessor; the microprocessor is used for processing the image information from the CCD camera module to determine a visible observation distance under real-time road conditions and determine safe traveling speed limit data according to the visible observation distance; meanwhile, the speed limit data is sent to the output module; the output module sends out the safe traveling speed limit data to let a driver know; the power supply is connected with all the components to supply working voltage to all the components. All-weather and high-efficiency passage with a safety guarantee on an expressway can be realized.

Description

technical field [0001] The invention relates to a system installed in road vehicles that can give speed limit instructions, in particular to a speed warning device and method for expressway traffic that is automatically adapted to fog and haze. Background technique [0002] As highway mileage and car ownership both increase, people rely more and more on cars for quick travel. However, with the aggravation of environmental pollution, the impact of smog on the safety and convenience of highway car travel cannot be ignored. Although the domestic expressway management department has established a series of linkage mechanisms such as weather monitoring, road inspection, fog light induction, information prompts, entrance restrictions, and accident rescue, it is still unable to respond to sudden and uneven weather changes in a timely and effective manner. sex. [0003] On the one hand, the existing regulatory system cannot promptly notify the driver of control instructions such a...

AI Technical Summary

Problems solved by technology

Although the domestic expressway management department has established a series of linkage mechanisms such as weather monitoring, road inspection, fog light induction, information prompts, entrance restrictions, and accident rescue, it is still unable to respond to sudden and uneven weather changes in a timely and effective manner. sex

[0003] On the one hand, the existing regulatory system cannot promptly notify the driver of control instructions such as the speed limit value anytime and anywhere. In dense fog, timely and precise control instructions cannot be formed, and serious traffic accidents caused by this are not uncommon, resulting in heavy losses

At present, the closed means of expressways that are often used are waste food for fear of choking, because although the occurrence of expressway accidents has been avoided in this way, the traffic efficiency has been seriously affected, and it has also brought great traffic pressure to ordinary roads. , the protection level is low, and the road conditions are complex, which will inevitably lead to an increase in the accident rate of ordinary roads

In addition, even if the speed limit value is determined in advance according to the weather conditions, usually the value is set low, so on the one hand, there is a problem that it is difficult to implement, and on the other hand, the traffic efficiency will be greatly reduced.

[0004] In addition, due to the limited supervision points on the expressway, it is also difficult to use supervision methods to deal with smog and speeding to ensure driving safety.

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