Pre-warning method and device of vehicle wading

Abstract

The invention provides a pre-warning method and device of vehicle wading. The pre-warning method includes measuring the depth of accumulated water at a position, with a preset distance, in front of a vehicle according to measurement results of a roof laser range finder, a vehicle bottom laser range finder, an ultrasonic range finder and a gyroscopic sensor; judging whether the depth of the accumulated water is larger than the safety depth of the vehicle or not; giving out a pre-warning prompt message if the depth of the accumulated water is larger than the safety depth of the vehicle. Compared with the technical scheme that the detection of the depth of the accumulated water and the pre-warning are performed after the vehicle wades in the prior art, the pre-warning method and device have the advantages that the depth of accumulated water at a position, with a preset distance, in front of the vehicle can be detected before the vehicle wades, the pre-warning can be given out when the depth of the accumulated water is larger than the safety depth of the vehicle, the vehicle wading pre-warning efficiency can be improved, and real vehicle wading pre-warning can be achieved.

Description

【Technical Field】 [0001] The present invention relates to the technical field of vehicle safety, in particular to an early warning method and device for vehicle wading. 【Background technique】 [0002] Under normal circumstances, after heavy rain, the drainage equipment fails to drain the accumulated water in time, resulting in a large amount of accumulated water in the concave road section. When a car passes through a concave section, if the depth of the accumulated water is too deep, it will cause the car to stall, resulting in the car being trapped in the water and causing certain property losses. What's more serious is that when the car is turned off and the door cannot be opened, it is more likely to cause the driver's life to be in danger. Therefore, the vehicle's early warning plan for wading becomes particularly important. [0003] Existing vehicle wading warning schemes usually perform detection and warning after the vehicle is wading, and if the depth of the water accumul...

AI Technical Summary

Problems solved by technology

[0002] Usually, after the heavy rain, the drainage equipment fails to discharge the accumulated water in time, resulting in a large amount of accumulated water in the concave road section

When a car passes through a concave road section, if the water depth is too deep, the car will stall, causing the car to be trapped in the water, resulting in certain property losses

What's more serious is that when the car is turned off and the door cannot be opened, it is more likely to cause the driver's life to be in danger, so the vehicle's early warning scheme for wading becomes particularly important

[0003] The existing vehicle wading early warning scheme usually detects and warns after the vehicle is wading. At this time, if the depth of the accumulated water is too deep and the vehicle has not been warned in time, it may cause the vehicle to stall and be trapped in the water.

Therefore, the existing vehicle wading early warning schemes have poor early warning efficiency and cannot provide real early warning.

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