Vehicle-mounted camera control method and vehicle-mounted camera

Abstract

The invention discloses a control method of a vehicle-mounted camera and the vehicle-mounted camera, and the method comprises the steps: providing the vehicle-mounted camera which comprises a camera module, a control module and a transverse linear motor module, and the camera module and the transverse linear motor module are electrically connected with the control module; the camera module is used for obtaining a current first advancing picture, the control module is used for obtaining the definition of the first advancing picture, and the definition is compared with a specified threshold value; if yes, continuing to advance, and if not, determining whether to start a transverse linear motor module to vibrate the camera or not according to the user input information according to the user input information; and after the vibration is finished, obtaining the second advancing picture again, and performing definition judgment again until the definition is greater than the specified threshold value. The transverse linear motor module can perform vibration removal only after user confirmation, and is more energy-saving and efficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle-mounted camera stain removal, and particularly relates to a control method of a vehicle-mounted camera and the vehicle-mounted camera. BACKGROUND

[0002] Nowadays, vehicle-mounted cameras have been widely applied to various vehicles and are important equipment for assisting drivers to observe the environment around the vehicle and to determine whether it is safe. For example, in an advanced driver assistance system (ADAS), the image collected by the camera is used to perceive the surrounding road environment, to realize special functions such as road sign recognition, lane line sensing, pedestrian recognition, vehicle recognition, etc.

[0003] However, the camera installed outside the vehicle is easily affected by mud, rain, condensation and other environments, and the lens surface is easily contaminated, which causes the light to be partially or completely blocked, thereby affecting the field of view. When there is a lot of dust on the lens surface of the camera or water droplets in the rain, the light sensing and image distortion problems will be caused, thereby seriously affecting the processing result of computer vision, resulting in unclear camera module images, which cannot meet the user's use demand. SUMMARY

[0004] In the prior art, the camera module of the vehicle is easily affected by pollution or water droplets, which easily causes the camera module image to be unclear, which cannot meet the user's use demand.

[0005] In view of the above problems, a control method of a vehicle-mounted camera and the vehicle-mounted camera are provided, wherein the transverse linear motor module is integrated on the base shell of the vehicle-mounted camera, and the transverse linear motor module in the present application can be vibrated only after the user confirms, which is more energy-saving and efficient.

[0006] In a first aspect, a control method of a vehicle-mounted camera is provided, comprising: Step 100, providing a vehicle-mounted camera, comprising a camera module, a control module and a transverse linear motor module, wherein the camera module and the transverse linear motor module are electrically connected to the control module; Step 200, acquiring a current first travel picture by using the camera module, acquiring the definition of the first travel picture by using the control module, and comparing the definition with a specified threshold value; Step 300, if the definition is greater than the specified threshold value, continuing to travel, and if the definition is less than the specified threshold value, determining whether to start the transverse linear motor module to vibrate the camera according to user input information; Step 400, acquiring a second travel picture again after the vibration ends, and performing definition judgment again; Step 500, repeating steps 200-400 until the definition is greater than the specified threshold value.

[0007] In combination with the control method of the vehicle-mounted camera according to the first aspect of the present application, in a first possible implementation, the step 100 comprises: In step 110, the camera module is obtained and assembled at the front end of the fixed base of the camera. In step 120, at least one lateral linear motor module is arranged in the transverse axis direction / longitudinal axis direction of the fixed base.

[0008] In combination with the first possible implementation of the first aspect of the present application, in a second possible implementation, the step 200 comprises: In step 210, the first traveling image is converted into a gray value to obtain a first gray image, and a Gaussian filtering algorithm is used to filter out the noise of the first gray image to obtain a second gray image. In step 220, the gradient value of the second gray image is obtained by using a Sobel algorithm. In step 230, the gradient value is normalized to obtain the definition of the first traveling image.

[0009] In combination with the first possible implementation of the first aspect of the present application, in a third possible implementation, the step 300 comprises: In step 310, if the definition is less than a specified threshold, a reminder information is sent to the user. In step 320, the user determines whether there is a removable contaminant on the vehicle-mounted camera according to the reminder information, and if there is the removable contaminant, the lateral linear motor module is started by the control module to vibrate the vehicle-mounted camera to remove the removable contaminant.

[0010] In combination with the third possible implementation of the first aspect of the present application, in a fourth possible implementation, the step 320 comprises: In step 321, the first lateral linear motor module located in the transverse axis direction is started at a specified frequency. In step 322, the second lateral linear motor module located in the longitudinal axis direction is started at a specified frequency.

[0011] Secondly, a vehicle-mounted camera adopts the control method of the vehicle-mounted camera according to the first aspect of the present application, comprising The vehicle-mounted camera comprises a camera module, a control module, and a lateral linear motor module. The camera module and the lateral linear motor module are electrically connected to the control module. The camera module is used to obtain a vehicle traveling picture. The control module is configured to acquire the definition of the first advancing image, compare the definition with a specified threshold, if the definition is greater than the specified threshold, continue to advance, if the definition is less than the specified threshold, determine whether to start the lateral linear motor module to vibrate the camera according to user input information, acquire a second advancing image again after the vibration ends, and perform definition judgment again until the definition is greater than the specified threshold.

[0012] In combination with the control method of the vehicle-mounted camera according to the first aspect of the present application, in a first possible implementation manner, the camera further comprises: a fixed base; The camera module is assembled at the front end of the fixed base of the camera. At least one lateral linear motor module is arranged in the transverse axis direction / longitudinal axis direction of the fixed base.

[0013] In combination with the first possible implementation manner of the second aspect of the present application, in a second possible implementation manner, the control module is further configured to: perform gray value conversion on the acquired first advancing image to acquire a first gray image, filter out noise of the first gray image by using a Gaussian filtering algorithm to acquire a second gray image, acquire gradient values of the second gray image by using a Sobel algorithm, and perform normalization processing on the gradient values to acquire the definition of the first advancing image.

[0014] In combination with the first possible implementation manner of the second aspect of the present application, in a third possible implementation manner, the control module is further configured to: if the definition is less than a specified threshold, send a prompt information to a user, and the user determines whether there is a removable contaminant on the vehicle-mounted camera according to the prompt information, and if there is the removable contaminant, start the lateral linear motor module to vibrate the vehicle-mounted camera to remove the removable contaminant through the control module.

[0015] In combination with the third possible implementation manner of the second aspect of the present application, in a fourth possible implementation manner, the control module is further configured to: start a first lateral linear motor module located in the transverse axis direction according to a specified frequency, and start a second lateral linear motor module located in the longitudinal axis direction according to a specified frequency.

[0016] The control method of the vehicle-mounted camera and the vehicle-mounted camera according to the present application are implemented, the lateral linear motor module is integrated on the base shell of the vehicle-mounted camera, the lateral linear motor module in the present application can be vibrated to remove only after being confirmed by a user, and the present application is more energy-saving and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0018] Figure 1 is a specific embodiment flowchart of the control method of the vehicle-mounted camera in the present application; Figure 2 is Figure 1 is a specific embodiment flowchart of step 100 in the present application; Figure 3 is Figure 1 is a specific embodiment flowchart of step 200 in the present application; Figure 4 is Figure 1 is a specific embodiment flowchart of step 300 in the present application; Figure 5 is Figure 4 is a specific embodiment flowchart of step 320 in the present application; Figure 6 is a specific embodiment schematic diagram of the vehicle-mounted camera in the present application; Figure 7 is another specific embodiment schematic diagram of the vehicle-mounted camera in the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the present application will be described clearly and completely in the following with reference to the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the singular forms "a", "an" and "the" include plural references unless the context clearly dictates otherwise.

[0021] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are used only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified.

[0024] In the prior art, the camera module 601 of the vehicle is easily affected by pollution or water droplets, which can cause the camera module 601 image to be unclear and cannot meet the user's use requirements.

[0025] To solve the above problems, a control method for a vehicle-mounted camera module 601 and a vehicle-mounted camera are provided.

[0026] In a first aspect, a control method for a vehicle-mounted camera, such as Figure 1 , Figure 1 is a specific embodiment flowchart of the control method for the vehicle-mounted camera in the present application; comprising: Step 100, providing a vehicle-mounted camera, comprising a camera module 601, a control module 602 and a transverse linear motor module 603, the camera module 601 and the transverse linear motor module 603 are respectively electrically connected with the control module 602.

[0027] In one possible embodiment, such as Figure 2 , Figure 2 is Figure 1 a specific embodiment flowchart of step 100 in the present application; step 100 comprises: step 110, acquiring a camera module 601, and assembling the camera module 601 at the front end of the fixed base of the camera; step 120, at least one transverse linear motor module 603 is arranged in the transverse axis direction / longitudinal axis direction of the fixed base.

[0028] In the present embodiment, the base can be a square structure, two transverse linear motor modules 603 can be arranged in the transverse axis direction (X direction) thereof, or two transverse linear motor modules 603 can be arranged in the longitudinal axis direction (Y direction) thereof.

[0029] In one application scenario, for example, the horizontal and vertical directions of the reverse image camera module shell are increased with a horizontal linear motor. When the system detects that the picture is blurred and there is a water droplet on the lens surface, the driver is reminded to start the motor vibration function. The motor vibrates along the horizontal and vertical axes of the camera to drive the camera to vibrate, remove the water droplet on the lens surface, and restore the performance of the camera to normal.

[0030] Step 200, using the camera module 601 to obtain the current first traveling picture, using the control module 602 to obtain the definition of the first traveling picture, and comparing the definition with the specified threshold. In one possible embodiment, as shown in Figure 3 , Figure 3 is Figure 1 a specific embodiment flowchart of step 200 in

[0031] In this embodiment, first, gray scale conversion is performed: the color image is converted to a gray scale image to reduce the calculation complexity (if the original image is a gray scale image, it can be skipped), and noise removal processing is performed: Gaussian filtering and other methods are used to remove image noise to avoid noise interference with the definition calculation. Then, the gradient method (based on edge information) is used to calculate the gradient amplitude: the Sobel convolution kernel is used to perform edge detection on the image, and the gradient amplitude of each pixel is calculated (reflecting the pixel change rate, the greater the gradient, the clearer the edge), the gradient value is counted: the sum or mean of the gradient amplitudes of the entire image is calculated, the greater the value, the higher the image definition, and finally the gradient calculation result is normalized: the calculation result is normalized to [0, 1] or a specific range, which facilitates the definition comparison between different images, and the image definition is determined according to the normalized value: the greater the value, the higher the definition; the smaller the value, the more blurred the image.

[0032] Step 300, if greater than the specified threshold, continue to travel, if less than the specified threshold, determine whether to start the horizontal linear motor module 603 to vibrate the camera according to the user input information.

[0033] In one possible embodiment, as shown in Figure 4 , Figure 4 is Figure 1A specific embodiment flowchart of step 300 is shown in FIG. 3. Step 300 includes: step 310, if the clarity is less than a specified threshold, sending a reminder to the user; and step 320, the user determines whether there is removable contamination on the vehicle-mounted camera according to the reminder information, and if there is removable contamination, starting the horizontal linear motor module 603 to vibrate the vehicle-mounted camera to remove the removable contamination through the control module 602.

[0034] In one possible embodiment, as shown in FIG. 2, the vehicle-mounted camera 100 includes a camera body 101, a horizontal linear motor module 603, a control module 602, and a camera lens 102. Figure 5 Figure 5 is Figure 4 A specific embodiment flowchart of step 320 is shown in FIG. 3. Step 320 includes: step 321, starting the first horizontal linear motor module 603 in the horizontal direction at a specified frequency; and step 322, starting the second horizontal linear motor module 603 in the vertical direction at a specified frequency.

[0035] In one application scenario, the camera takes a picture to obtain a current picture, calculates the clarity of the current picture, and if the clarity is not less than a specified threshold, continues to reverse. If the clarity is less than the specified threshold, the driver is reminded to confirm whether to start the horizontal linear motor. The driver confirms whether the low clarity of the picture is caused by water droplets or the like, and if not, the motor function can not be started, and the reversing continues. If so, the motor vibration function can be started, and the motor starts to vibrate the lens together along the horizontal and vertical axes of the camera, and the water droplets will also fall off. After the vibration ends, the camera takes a picture to obtain a current picture again, calculates the clarity of the current picture, and makes a judgment again. This cycle continues until the clarity of the picture meets the specified threshold, and the driver is no longer reminded to start the motor vibration function.

[0036] Step 400, a second travel picture is obtained again after the vibration ends, and the clarity is judged again.

[0037] Step 500, steps 200-400 are repeated until the clarity is greater than the specified threshold.

[0038] In the embodiments of the present application, the horizontal linear motor module 603 is integrated on the base shell of the vehicle-mounted camera, and the horizontal linear motor module 603 in the present application can be vibrated to remove after the user confirms, which is more energy-saving and efficient.

[0039] In a second aspect, a vehicle-mounted camera includes a camera body, a horizontal linear motor module, a control module, and a camera lens. Figure 6 Figure 6 ​​is a specific embodiment schematic diagram of the vehicle-mounted camera in the present application; the control method of the vehicle-mounted camera of the first aspect comprises a camera module 601, a control module 602 and a transverse linear motor module 603; the camera module 601 and the transverse linear motor module 603 are electrically connected with the control module 602 respectively; the camera module 601 is used for acquiring a vehicle traveling picture; the control module 602 is used for acquiring the definition of the first traveling picture, and comparing the definition with a specified threshold value, if the definition is greater than the specified threshold value, the vehicle continues to travel, if the definition is less than the specified threshold value, it is determined according to user input information whether to start the transverse linear motor module 603 to vibrate the camera, after the vibration ends, a second traveling picture is acquired again, and the definition is judged again until the definition is greater than the specified threshold value.

[0040] As Figure 7 , Figure 7 is another specific embodiment schematic diagram of the vehicle-mounted camera in the present application. The camera further comprises a fixed base 604; the camera module 601 is assembled at the front end of the fixed base of the camera; at least one transverse linear motor module 603 is arranged in the transverse axis direction / longitudinal axis direction of the fixed base respectively.

[0041] The control module 602 is further used for: carrying out gray value conversion on the acquired first traveling image, acquiring a first gray image, filtering out the noise of the first gray image by using a Gaussian filtering algorithm, acquiring a second gray image, acquiring the gradient value of the second gray image by using a Sobel algorithm, carrying out normalization processing on the gradient value, and acquiring the definition of the first traveling image.

[0042] The control module 602 is further used for: if the definition is less than the specified threshold value, sending a prompt information to the user, and determining whether there is removable contamination on the vehicle-mounted camera according to the prompt information, if there is removable contamination, starting the transverse linear motor module 603 by the control module 602 to vibrate the vehicle-mounted camera, so as to remove the removable contamination.

[0043] The control module 602 is further used for: starting the first transverse linear motor module 603 located in the transverse axis direction according to a specified frequency, and starting the second transverse linear motor module 603 located in the longitudinal axis direction according to a specified frequency.

[0044] The control method of the vehicle-mounted camera and the vehicle-mounted camera of the present application are integrated with the transverse linear motor module on the base shell of the vehicle-mounted camera, the transverse linear motor module in the present application can be vibrated to remove after being confirmed by the user, and are more energy-saving and efficient.

[0045] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for controlling a car camera, characterized by, Comprising: Step 100, providing a vehicle-mounted camera, comprising a camera module, a control module and a transverse linear motor module, the camera module, the transverse linear motor module are respectively electrically connected with the control module; Step 200, using the camera module to obtain the current first travel picture, using the control module to obtain the definition of the first travel picture, and comparing the definition with the specified threshold value; Step 300, if greater than the specified threshold value, continue to travel, if less than the specified threshold value, determine whether to start the transverse linear motor module to vibrate the camera according to the user input information; Step 400, after vibration, obtain the second travel picture again, and judge the definition again; Step 500, repeat steps 200-400 until the definition is greater than the specified threshold value.

2. The control method of the vehicle-mounted camera according to claim 1, characterized by, The step 100 comprises: Step 110, obtaining the camera module, assembling the camera module at the front end of the fixed base of the camera; Step 120, at least one transverse linear motor module is arranged in the transverse axis direction and the longitudinal axis direction of the fixed base respectively.

3. The control method of the vehicle-mounted camera according to claim 2, characterized by, The step 200 comprises: Step 210, converting the obtained first travel image into a gray value, obtaining a first gray image, and filtering out the noise of the first gray image by using a Gaussian filtering algorithm to obtain a second gray image; Step 220, using a Sobel algorithm to obtain the gradient value of the second gray image; Step 230, normalizing the gradient value to obtain the definition of the first travel image.

4. The control method of the vehicle-mounted camera according to claim 2, characterized by, The step 300 comprises: Step 310, if the definition is less than the specified threshold value, send a reminder information to the user; Step 320, the user determines whether there is a removable contaminant on the vehicle-mounted camera according to the reminder information, if there is the removable contaminant, start the transverse linear motor module through the control module to vibrate the vehicle-mounted camera to remove the removable contaminant.

5. The control method of the vehicle-mounted camera according to claim 4, characterized by, The step 320 comprises: Step 321, starting the first transverse linear motor module located in the transverse axis direction according to the specified frequency; Step 322, starting the second transverse linear motor module located in the longitudinal axis direction according to the specified frequency.

6. A vehicle camera, characterized by comprising: The control method of the vehicle-mounted camera according to any one of claims 1-5, comprising Comprising a camera module, a control module and a transverse linear motor module; The camera module, the transverse linear motor module are respectively electrically connected with the control module; The camera module is used to obtain the vehicle travel picture; The control module is used to obtain the definition of the first travel picture, and compare the definition with the specified threshold value, if greater than the specified threshold value, continue to travel, if less than the specified threshold value, determine whether to start the transverse linear motor module to vibrate the camera according to the user input information, obtain the second travel picture again after vibration, and judge the definition again, until the definition is greater than the specified threshold value.

7. The vehicle camera according to claim 6, characterized by, The camera further comprises: Fixed base; The camera module is assembled at the front end of the fixed base of the camera; At least one lateral linear motor module is arranged in the lateral direction / longitudinal direction of the fixed base respectively.

8. The vehicle camera according to claim 6, characterized in that, The control module is further configured to: perform gray value conversion on the acquired first travel image to obtain a first gray image, filter out noise of the first gray image by using a Gaussian filtering algorithm to obtain a second gray image, obtain gradient values of the second gray image by using a Sobel algorithm, and perform normalization processing on the gradient values to obtain the definition of the first travel image.

9. The vehicle camera of claim 6, wherein, The control module is further configured to: if the definition is less than a specified threshold, send a reminder information to a user, and determine whether there is a removable contaminant on the vehicle-mounted camera according to the reminder information; and if there is the removable contaminant, start the lateral linear motor module by using the control module to vibrate the vehicle-mounted camera to remove the removable contaminant.

10. The vehicle camera according to claim 9, characterized in that, The control module is further configured to: start the first lateral linear motor module in the lateral direction according to a specified frequency, and start the second lateral linear motor module in the longitudinal direction according to the specified frequency.

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