Discrimination device for vehicle distance and vehicle speed

Abstract

The invention discloses a vehicle distance and vehicle speed discrimination device, aiming to provide a vehicle distance and vehicle speed discrimination device capable of reminding drivers to drive safely, preventing vehicle rear-end collisions, and reducing the incidence of traffic accidents. The identification device includes a rearview mirror (1), a warning sign (2), and an adjustment frame (3), the adjustment frame (3) is fixedly arranged on the rearview mirror (1), and the warning sign (2) ) is arranged laterally on the adjustment frame (3), the position of the warning sign (2) on the rearview mirror (1) corresponds to the rear end of the vehicle, and the warning sign (2) can also be set according to Need to slide on the adjustment frame (3), corresponding to the rear end of the vehicle or the rear of the vehicle rear end, the driver judges the distance and speed between the rear vehicle and the vehicle according to the warning sign (2), and will not easily To perform the operation of overtaking, changing lanes or driving back to the original lane, greatly improving the accuracy of the driver's judgment and achieving the purpose of safe driving.

Description

technical field [0001] The invention relates to a device for distinguishing vehicle distance and vehicle speed. Background technique [0002] At present, car drivers know that before overtaking, changing lanes, or driving back to the original lane, they need to observe the distribution of vehicles around them. Only when safety is ensured can they perform corresponding operations such as overtaking, changing lanes, and driving back to the original lane. In this process, it is relatively easy and convenient for the driver to observe whether there are cars in front and on both sides, but it is more difficult to distinguish the speed of the rear vehicle and the distance between the rear vehicle and his own vehicle through the rearview mirror. Especially when the distance between the vehicle behind and the vehicle is relatively close, and the speed of the vehicle behind and the driving speed of the vehicle should also be considered to see if the speed of the vehicle behind is fas...

AI Technical Summary

Problems solved by technology

[0002] At present, car drivers know that before overtaking, changing lanes, or driving back to the original lane, they need to observe the distribution of vehicles around them. Only when safety is ensured can they perform corresponding operations such as overtaking, changing lanes, and driving back to the original lane. In this process, it is relatively easy and convenient for the driver to observe whether there are cars in front and on both sides, but it is more difficult to distinguish the speed of the rear vehicle and the distance between the rear vehicle and his own vehicle through the rearview mirror. Especially when the distance between the vehicle behind and the vehicle is relatively close, and the speed of the vehicle behind and the driving speed of the vehicle should also be considered to see if the speed of the vehicle behind is faster than the speed of the vehicle, especially when driving at night. All vehicles turn on the headlights. Under the illumination of the lights, it is more difficult to judge the position of the rear vehicle, the distance from the vehicle, and the speed of the two vehicles. This often leads to traffic accidents due to inaccurate judgments, which has caused a lot of damage to the society. big hazard

[0003] The applicant of this scheme is inspired by the reflection of the car. When the sun shines on the car body from an oblique upper side, a shadow will appear on one side of the car. The length of the shadow is very close to the length of the car. The end point of the rear of the car is the starting point of the shadow. The driver sits on the seat and looks at the rearview mirror, and can see the shadow from the rearview mirror. The driver can observe the situation of the rear vehicle according to the position of the shadow in the rearview mirror, and judge the distance between the rear vehicle and the vehicle and the distance between the vehicle and the vehicle. The speed of the vehicle will not easily perform the operation of overtaking, changing lanes or driving back to the original lane, which greatly improves the accuracy of the driver's judgment and achieves the purpose of driving safely. However, this method is affected by the weather and must be available during the day. When it is sunny, the position of the shadow must be flush with the rear end of the vehicle. Otherwise, the judgment is also inaccurate, which makes the driver's utilization rate relatively low, and cannot provide evidence for the driver for a long time. There is also some inconvenience.

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