Large van and semitrailer steering meniscus display prompter

Abstract

The invention relates to a large van and semitrailer steering meniscus display prompter. The prompter is composed of a camera, a display, a steering gear box steering sensor, a vehicle speed sensor and a signal processor; a vehicle driving exterior scene image shot by the camera is transmitted through the signal processor so as to be displayed by the display; left and right steering signals generated by the steering gear box steering sensor are analyzed and calculated through the signal processor, so that left or right meniscus graphic signals which correspond to a steering angle and a steering direction and are matched with an exterior scene are superposed and displayed on the display; and the signal processor can generate complete meniscus graphic signals. The number and installation positions of cameras are determined and generated according to vehicle type characteristics, and the optimal scheme of the number and installation positions of the cameras is obtained through an experiment; and the shape of a meniscus area graph is determined and generated on the basis of a vehicle type (a semitrailer or not), the number of axles, and the relation between the turning angle and turning radius difference of an axle distance through an experiment and the algorithm of the signal processor.

Description

Technical field: [0001] The invention relates to the fields of transportation and electronic information technology Background technique: [0002] For semi-trailers and other passenger and trucks with long bodies, due to the long front and rear axles and wheelbases of the vehicle, there is a large turning radius difference between the front and rear wheels when the vehicle is turning. meniscus area. Especially for semi-trailers, because the relative positions of the front and rear hanging parts are not fixed, when the vehicle turns, the observation angle of the rearview mirror of the front will change, and the meniscus area cannot be observed, and the meniscus area becomes a visual blind spot. The lunar area is also known as the "death meniscus area". Every year, there are a lot of traffic accidents caused by semi-trailers and other long-bodied passenger and trucks in my country, and this type of accidents mostly occurs when the vehicle is driving at low speed and turning ...

AI Technical Summary

Problems solved by technology

Every year, there are a lot of traffic accidents caused by semi-trailers and other long-bodied passenger and trucks in my country, and this type of accidents mostly occurs when the vehicle is driving at low speed and turning at a large angle. At this time, the turning radius of the front and rear wheels is different. Larger, the "death meniscus area" has a large area and is highly dangerous. Most of these situations are located at densely populated intersections in urban areas, causing serious losses to people's lives and property

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