Alarm device and alarm method for occupant dangerous state in vehicle

Abstract

The invention discloses an alarm device and an alarm method for occupants in a vehicle in a dangerous state. The device includes a microprocessor, a plurality of left infrared sensors and a plurality of right infrared sensors for obtaining whether the occupant's limbs extend out of the window, a left camera and a right camera for collecting images of the occupant's limbs and obstacles, and It is a signal light for alarming according to the alarm signal sent by the microprocessor; through the infrared sensor installed on the outer upper edge of the window to obtain whether the occupant has a limb sticking out of the window, if there is an occupant's limb sticking out of the window, it is installed on the vehicle The camera on the rearview mirror captures the image behind the vehicle, and the microprocessor processes the image through image processing technology to identify the gap between the occupant's limbs extending out of the window and the obstacle, and evaluate the safety of the occupant's state , the evaluation results are divided into three types: dangerous, relatively dangerous and safe, and the evaluation results are prompted to the driver through signal lights of different colors.

Description

technical field [0001] The invention relates to the field of occupant protection in a vehicle, in particular to an alarm device and an alarm method for the dangerous state of an occupant in a vehicle. Background technique [0002] At present, the number of motor vehicles is increasing rapidly, and in the case of limited road resources, congestion is becoming more and more common. In order to alleviate congestion and achieve the purpose of fast passage, vehicles often have congestion or multiple vehicles in a lane; however, the safety awareness of the occupants is not high, and there are often dangerous behaviors where the occupants' heads or limbs stick out of the window ; In cities, especially in areas with city gates, bridge piers and three-dimensional traffic, if the above-mentioned vehicles are blocked or there are multiple vehicles in parallel in the same lane, the distance between vehicles, city gates, bridge piers and other vehicles and other obstacles If the occupan...

AI Technical Summary

Problems solved by technology

During driving, the rearview mirror is used to obtain information such as whether the occupant is sticking out the window, but the field of view of the rearview mirror is limited, and the driver's gaze point is only one at a time, and too much observation of the rearview mirror will cause the driver to be confused. The reduction in the acquisition of traffic information ahead is not conducive to driving safety. Under such circumstances, the development of a system that automatically recognizes whether the occupant's limbs are sticking out of the window and prompts the driver has practical application value

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