Intelligent rainfall sensing method and device based on image recognition

Abstract

The invention discloses an intelligent rainfall sensing method and device based on image recognition, and aims to search for a more effective windscreen wiper control implementation scheme, and the method comprises the following steps: detecting a single-frame image to obtain a rainfall scene category, and recognizing a raindrop bounding box of each raindrop; obtaining rainfall categories of the Nframes of single-frame images according to a preset time sequence, and generating rainfall scene tracking information based on the rainfall category with the largest number; obtaining stable raindroptracking information in combination with raindrop identification results between front and back continuous frames; and generating a windscreen wiper control instruction based on the rainfall scene tracking information and the stable raindrop tracking information so as to control the action of the windscreen wiper. By combining the rainfall scene category and raindrop tracking, compared with a traditional vehicle-mounted rainfall electronic sensor, the windscreen wiper can be started in time at the beginning of raining, the windscreen wiper speed is automatically controlled according to the recognized rainfall, and the automatic control performance of the windscreen wiper is enhanced to a certain extent.

Description

technical field [0001] The present invention relates to the field of intelligent driving, in particular, the present invention relates to an image recognition-based intelligent rainfall sensing method and device. Background technique [0002] In the existing automatic wiper control technology, a rain sensor is generally used to adjust the action of the wiper. The rain sensor is an electronic sensor, which uses light-emitting diodes to send far-infrared rays and photodiodes to adjust the amount of light reflected by the glass surface to adjust the action of the wiper. Specifically, when the glass surface is dry, almost all light is reflected back. , so that the photodiode can receive a large amount of reflected light; when there is more rain on the glass, the less light is reflected back, and the result is that the wiper moves faster. Therefore, the rain sensor can adjust the action of the wiper according to the amount of rain falling on the glass when there is rain in the c...

AI Technical Summary

Problems solved by technology

[0003] However, the coverage area of ​​the far infrared rays of the rain sensor is limited, and it cannot act on the entire front glass surface of the car.

Therefore, when the rain falls on the area not covered by the rain sensor, the wiper cannot be controlled in time, resulting in the delay of the wiper action, which will affect driving safety to a certain extent.

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