Vehicle distance anti-collision early warning device and method based on internet of vehicles

Abstract

The invention discloses a vehicle distance anti-collision early warning device and a method based on the internet of vehicles. The vehicle distance anti-collision early warning device comprises an information acquisition unit, an alarm unit, a data processing unit and a power supply circuit. The distance between the current vehicle and a nearest vehicle ahead is acquired through setting a directional antenna, and acceleration, speed and direction information of the vehicle is transmitted and received through wireless transmitting and receiving terminals. The whole device is simple in structure, the directional antenna is integrated ingeniously, a reading range is limited, and data transmission between vehicles is enabled to be accurate and fast. The early warning method is characterized in that safe vehicle distance judgment is carried out through the data processing unit according to the driving direction of the vehicle, and the alarm unit is triggered to give out alarm signals if the distance between the current vehicle and the nearest vehicle ahead is less than the minimum safe vehicle distance between two vehicles. The vehicle distance anti-collision early warning device is additionally provided with the directional antenna and the wireless receiving terminal, and enables distance measurement to be more accurate by being combined with an installation position of the wireless transmitting terminal. A defect that the existing anti-collision early warning device is affected by the external environment is effectively avoided.

Description

technical field [0001] The invention belongs to the field of automobile control, and relates to a vehicle distance anti-collision warning device and method based on the Internet of Vehicles. Background technique [0002] Nowadays, the number of automobiles in my country shows a rapid growth trend, followed by traffic congestion and frequent traffic accidents. By installing a vehicle distance warning system for vehicles, a safe distance between vehicles can be maintained, which can effectively reduce traffic accidents. [0003] With the vigorous development of the transportation industry, the Internet of Vehicles technology will be widely used in the field of transportation. [0004] Most of the existing vehicle distance avoidance warning systems use camera systems, ultrasonic, laser, infrared and other ranging methods, and these ranging methods are easily affected by the external environment. For example, the camera system is easily affected by light, and laser ranging requ...

AI Technical Summary

Problems solved by technology

[0008] The present invention proposes a car distance anti-collision warning device and method based on the Internet of Vehicles, and its purpose is to overcome the problem in the prior art that when the front car brakes in an emergency, the rear car cannot be automatically sensed to realize automatic warning control

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