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Windshield wiper control method and system and automobile data recorder

A control method and technology for a control system, which are applied in vehicle maintenance, vehicle cleaning, transportation and packaging, etc., can solve problems such as affecting the driver's front view, unable to scrape off obstructions or rain, and driver distraction, etc. The effect of multi-functionalization, enhanced driving safety, and reduced vehicle cost

Pending Publication Date: 2022-04-12
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the opening and closing of the wiper often requires manual adjustment by the driver, which is likely to cause driver distraction
In addition, the operating frequency of the wiper is judged and adjusted by the rain sensor. Only when the windshield in front of the rain sensor is covered by dirt and obstructions, the wipers can swing to remove the dirt, which may lead to a When it is within the range of the rain sensor, the wiper cannot scrape off the shelter or rainwater, thus affecting the driver's front vision, and there is a great potential safety hazard

Method used

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  • Windshield wiper control method and system and automobile data recorder
  • Windshield wiper control method and system and automobile data recorder
  • Windshield wiper control method and system and automobile data recorder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 It is a flow chart of a wiper control method provided by Embodiment 1 of the present invention. This method can be used to control the wiper of the vehicle when there is rain or other obstructions on the front windshield of the vehicle, so as to improve the intelligence of the wiper operation. The method includes:

[0024] S110. Collect video images of the front windshield of the vehicle through the front camera of the driving recorder.

[0025] During the driving process of the vehicle, the camera of the driving recorder is collecting the front image all the time. In the embodiment of the present invention, the front camera of the driving recorder is not only collecting the driving environment image in front of the vehicle, but also the front windshield of the vehicle. Real-time video images are collected, and the collected images are sent to the image analysis module to determine whether there is an obstruction on the front windshield of the vehicle.

[002...

Embodiment 2

[0052] figure 2 It is a flow chart of a wiper control method provided in Embodiment 2 of the present invention. This method is further refined on the basis of the wiper control method provided in the above embodiment, as follows:

[0053] S210. Collect video images of the front windshield of the vehicle through the front camera of the driving recorder.

[0054] S220. Acquire the area of ​​the occluder by performing image analysis on the video image.

[0055] S230. Determine whether the area of ​​the occluder is greater than the first area threshold, if yes, execute S240, and then execute S250; if not, execute S260.

[0056] S240. Trigger and execute an emergency event recording operation, wherein the emergency event recording operation is to intercept video images within a first time period before the trigger moment of the emergency event recording operation and a second time period after the trigger moment.

[0057] Specifically, the image analysis module analyzes the capt...

Embodiment 3

[0068] image 3 It is a flow chart of a wiper control method provided in Embodiment 3 of the present invention. This method is further refined on the basis of the wiper control method provided in the above embodiment, as follows:

[0069] S310. Collect video images of the front windshield of the vehicle through the front camera of the driving recorder.

[0070] S320. Acquire the area of ​​the occluder by performing image analysis on the video image.

[0071] S330. Obtain the swing frequency of the wiper required for removing the block according to the area of ​​the block; control the drive motor of the wiper to control the swing of the wiper at the swing frequency of the wiper.

[0072] S340 , judging whether the wiper swings to remove the obstruction after the first preset time period; if not, execute S350 and then execute S360 ; if yes, return to S320 .

[0073] S350. Trigger and execute an emergency event recording operation, wherein the emergency event recording operatio...

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PUM

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Abstract

The invention discloses a windshield wiper control method and system and an automobile data recorder. The method comprises the following steps: collecting a video image of a front windshield of a vehicle through a front camera of the automobile data recorder; performing image analysis on the video image to obtain the area of a shelter; according to the shielding object area, the windshield wiper swing frequency needed for removing the shielding object is obtained; and controlling the windshield wiper driving motor to swing the windshield wiper at the windshield wiper swing frequency. The limitation that in the prior art, the windshield wiper is controlled to work only according to rainfall sensed by a rainfall sensor is solved, the windshield wiper control system is integrated in an existing automobile data recorder, the rainfall sensor in an existing automobile can be omitted, and the cost of the whole automobile is saved. And moreover, the windshield wiper is automatically controlled to swing at the proper frequency according to the area of the sheltering object, the windshield wiper control intelligence can be improved, a driver does not need to manually select the working frequency, the driving safety is enhanced, and the use experience of a user is improved.

Description

technical field [0001] The invention relates to the field of automobile control, in particular to a wiper control method and system, and a driving recorder. Background technique [0002] As a basic component of a car, wipers can scrape off water stains and dirt on the windshield, providing drivers with a clean and bright view. At present, the opening and closing of the wiper often requires manual adjustment by the driver, which easily causes the driver to be distracted. In addition, the operating frequency of the wiper is judged and adjusted by the rain sensor. Only when the windshield in front of the rain sensor is covered by dirt and obstructions, the wipers can swing to remove the dirt, which may lead to a When it is within the range of the rain sensor, the wiper cannot scrape off the shelter or rainwater, thus affecting the driver's front vision, and there is a great potential safety hazard. Contents of the invention [0003] Embodiments of the present invention prov...

Claims

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Application Information

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IPC IPC(8): B60S1/08
Inventor 陈晓愚武浩远王杨佟宇琪许恒孟俊峰
Owner CHINA FIRST AUTOMOBILE