Dangerous overtaking early warning device based on multi-sensor data fusion and early warning method thereof

Abstract

The invention relates to a dangerous overtaking early warning device based on multi-sensor data fusion. The dangerous overtaking early warning device based on multi-sensor data fusion comprises a DSP, wherein the input end of the DSP is connected with a video signal acquisition module, the output end of the DSP is connected with a video signal display module, the input-and-output end of the DSP is connected with a laser radar communication module and an MCU microprocessor through a serial port communication module, the input-and-output end of the MCU microprocessor is connected with a workshop communication module, a steering wheel turning angle detecting module and a speed measurement module, and the output end of the MCU microprocessor is connected with an LED module and a sound prompting module. The invention further discloses a dangerous overtaking early warning method based on multi-sensor data fusion. According to the dangerous overtaking early warning device based on multi-sensor data fusion and the dangerous overtaking early warning method based on multi-sensor data fusion, rear-end collision caused by misjudgement of the speeds of vehicles of both sides and the distance between the two sides during overtaking of a driver can be effectively avoided, collision accidents occurring due to the fact that the driver neglects a vehicle behind during overtaking can be effectively avoided, other road accidents caused by overtaking can also be avoided, the initiative is high, and the safety performance is high.

Description

technical field [0001] The invention relates to the technical field of automobile active safety, in particular to a multi-sensor data fusion dangerous overtaking warning device and a warning method thereof. Background technique [0002] With the increase in the number of cars in the world, traffic accidents have become a major killer affecting human safety. Especially in illegal accidents such as speeding, drunk driving, and dangerous overtaking, the accident rate of drivers with less than one year of driving experience is obviously high. Therefore, using technical means to collect information such as lane lines and the status of surrounding vehicles, when the vehicle deviates from the lane line or the distance between vehicles is too close, or when overtaking does not meet the overtaking conditions, timely active warning is given to the driver, which is the key to reducing road traffic accidents. effective technical measures. [0003] The research on dangerous overtaking a...

AI Technical Summary

Problems solved by technology

So far, there are a lot of overtaking devices in China, and some of them realize the purpose of overtaking through interactive communication between the front and rear vehicles through single-chip microcomputer, wireless transceiver, LED, keyboard, etc., but the communication is only to remind the vehicles in front purpose, does not return any data ahead; some detect the vehicle ahead through the distance measuring sensor, steering switch and light sensor combined with the fuzzy control unit, and at the same time, the patent adds a corresponding prompt function, which can effectively prompt its own overtaking intention to the front vehicles, so as to achieve safe overtaking, but if the vehicle in front does not respond to the prompt, the danger of the overtaking behavior will be greatly increased

At the same time, the judgments of the above two devices on the safe distance and relative speed in overtaking behavior are all determined by the driver's subjective experience, and there is no scientific basis. Once the driver makes a wrong judgment, unavoidable losses may occur

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