An anti-fouling device, control method and vehicle for a vehicle rearview camera

Abstract

The present application relates to the technical field of automobiles, and provides an anti-fouling device for an automobile reverse camera, a control method and an automobile. The device includes: a cleaning chamber, which has an open cavity and is arranged close to the reverse camera, and a liquid spraying port and a blowing port are arranged in the cavity; two lenses, which are connected side by side along a plane and rotatably connected to the cleaning chamber, and the two lenses are respectively located in front of the reverse camera and in the cavity; a rotary motor, which drives the two lenses to rotate; a soft door, which is arranged on the opening of the cleaning chamber and has a door slit; a cleaning member, which is arranged on the inner wall of the cavity; a liquid sprayer is communicated with the liquid spraying port and can spray liquid into the cavity through the liquid spraying port; a hair dryer is communicated with the blowing port and can blow air into the cavity through the blowing port; a controller, which is respectively connected to the rotary motor, the liquid sprayer and the hair dryer. The present application has the effect of automatically cleaning the front lens of the reverse camera, ensuring the normal use of the reverse camera, and improving the safety of automobile driving.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to an anti-fouling device for an automobile reversing camera, a control method and an automobile. Background Art

[0002] With the rapid development of the automobile industry, more and more cars are equipped with reversing cameras to sense the surrounding environment and assist the driver in driving. However, when driving, especially when driving off-road vehicles in the wild, the reversing camera is easily stained with rain or mud, which affects the camera's work and ultimately affects the driver's judgment of the external environment and driving safety.

[0003] In order to overcome the above problems, some existing cars use retractable reversing cameras. When reversing is required, the reversing camera is extended, and at other times, the reversing camera is retracted to prevent contamination. However, this structure still has the problem of the camera being contaminated during the reversing process, and once the camera is contaminated, it will also affect the use of the reversing camera in the whole car. Therefore, how to prevent the reversing camera from being contaminated and affecting normal reversing is a technical problem encountered in the use of cars, which needs to be improved. Summary of the invention

[0004] In view of this, the embodiments of the present application provide a vehicle reversing camera anti-fouling device, a control method and a vehicle to solve the problem of how to prevent the reversing camera from being contaminated and affecting normal reversing.

[0005] In a first aspect of an embodiment of the present application, there is provided an anti-fouling device for a vehicle reversing camera, comprising: a cleaning chamber, embedded in a position near the rear of a vehicle near the reversing camera, the cleaning chamber having a cavity with an opening, the inner wall of the cavity being provided with at least one liquid spraying port and an air blowing port; two lenses, the two lenses being connected side by side along a plane, the two lenses being rotatably connected to the cleaning chamber, and when one of the lenses is rotated to the front of the reversing camera, the other lens is located in the cavity of the cleaning chamber; a rotary motor, fixed to the cleaning chamber and rotatably connected to the connection position of the two lenses; a soft chamber door, arranged on the opening of the cleaning chamber, and having a door gap extending along the opening direction; a cleaning member, arranged on the inner wall of the cavity opposite to the two sides of the lens; a liquid sprayer, arranged on the cleaning chamber or the vehicle, the liquid sprayer being connected to the at least one liquid spraying port and capable of spraying liquid into the cavity through the liquid spraying port; a hair dryer, arranged on the cleaning chamber or the vehicle, the hair dryer being connected to the at least one air blowing port and capable of blowing air into the cavity through the air blowing port; and a controller, respectively connected to the rotary motor, the liquid sprayer and the hair dryer.

[0006] In the second aspect of the embodiments of the present application, a control method is provided for controlling the above-mentioned anti-fouling device of the vehicle rearview camera, which includes: when receiving an instruction that the lens in front of the rearview camera is contaminated, monitoring whether the vehicle is in a reverse state; if so, controlling the rotation motor to rotate 180°; rotating the lens located in the cavity of the cleaning chamber in front of the rearview camera; if not, controlling the rotation motor to rotate for a first preset duration, and simultaneously controlling the sprayer to spray liquid into the cavity of the cleaning chamber, when the first preset duration expires, controlling the rotation motor to stop rotating and the sprayer to stop spraying liquid, and then controlling the blower to blow air into the cavity of the cleaning chamber.

[0007] In the third aspect of the embodiments of the present application, another control method is provided for controlling the above-mentioned anti-fouling device of the vehicle rearview camera, which includes: based on the vehicle head unit of the vehicle, controlling the rearview camera to collect at least one image; using an image recognition algorithm to identify the image to determine whether the lens in front of the rearview camera is contaminated; when the lens is contaminated, sending an instruction that the lens in front of the rearview camera is contaminated to the controller of the vehicle rearview camera anti-fouling device; the controller of the vehicle rearview camera anti-fouling device receives the instruction that the lens in front of the rearview camera is contaminated, and monitors whether the vehicle is in a reverse state; if so, controlling the rotation motor to rotate 180°; rotating the lens located in the cavity of the cleaning chamber in front of the rearview camera; if not, controlling the rotation motor to rotate for a first preset duration, and simultaneously controlling the sprayer to spray liquid into the cavity of the cleaning chamber, when the first preset duration expires, controlling the rotation motor to stop rotating and the sprayer to stop spraying liquid, and then controlling the blower to blow air into the cavity of the cleaning chamber.

[0008] In the fourth aspect of the embodiments of the present application, a vehicle is provided, which at least includes a vehicle head unit, a rearview camera, and the above-mentioned anti-fouling device of the vehicle rearview camera. The vehicle head unit is respectively connected to the controller of the rearview camera and the anti-fouling device of the vehicle rearview camera; the controller includes a first memory, a first processor, and a first computer program stored in the first memory and executable on the first processor. When the first processor executes the first computer program, the steps of the above-mentioned method are implemented; the vehicle head unit includes a second memory, a second processor, and a second computer program stored in the second memory and executable on the second processor. When the second processor executes the second computer program, the steps of the above-mentioned another method are implemented.

[0009] The beneficial effects of the embodiments of this application compared with the prior art are as follows: Since the above-mentioned anti-fouling device for a vehicle rearview camera includes: a cleaning chamber embedded in the rear of the vehicle near the rearview camera, the cleaning chamber has a cavity with an opening, and at least one liquid spraying port and a blowing port are provided on the inner wall of the cavity; there are two lenses, the two lenses are connected side by side along a plane, and the two lenses are rotatably connected to the cleaning chamber. When one of the lenses rotates in front of the rearview camera, the other lens is located in the cavity of the cleaning chamber; a rotary motor is fixed on the cleaning chamber and rotatably connected to the connection position of the two lenses; a soft door is arranged on the opening of the cleaning chamber and has a door slit extending along the opening direction; a cleaning member is arranged on the inner wall of the cavity opposite to the two sides of the lens; a liquid sprayer is arranged on the cleaning chamber or the vehicle, the liquid sprayer is communicated with the at least one liquid spraying port and can spray liquid into the cavity through the liquid spraying port; a hair dryer is arranged on the cleaning chamber or the vehicle, the hair dryer is communicated with the at least one blowing port and can blow air into the cavity through the blowing port; a controller is respectively connected to the rotary motor, the liquid sprayer and the hair dryer. Therefore, when the lens in front of the rearview camera is contaminated, the clean lens in the cleaning chamber can be timely switched in front of the rearview camera, the contaminated lens can be made to enter the cleaning chamber, and the contaminated lens can be cleaned through the cleaning chamber, so as to achieve the effect of timely and automatically cleaning the lens in front of the rearview camera, ensure the normal use of the rearview camera, and further improve the safety of vehicle driving. Description of the Drawings

[0010] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of an anti-fouling device for a vehicle rearview camera provided by an embodiment of this application on a vehicle;

[0012] Figure 2 It is a front structural diagram of an anti-fouling device for a vehicle rearview camera and a rearview camera provided by an embodiment of this application;

[0013] Figure 3 It is a schematic side structural diagram of a cleaning chamber provided by an embodiment of this application;

[0014] Figure 4 It is a schematic control principle diagram of an anti-fouling device for a vehicle rearview camera provided by an embodiment of this application;

[0015] Figure 5 It is a schematic structural diagram of a first bracket provided by an embodiment of this application;

[0016] Figure 6 It is a front structural schematic diagram of the second bracket provided by an embodiment of the present application;

[0017] Figure 7 It is a structural schematic diagram of an arc-shaped clamping member in the second bracket provided by an embodiment of the present application;

[0018] Figure 8 It is a flowchart schematic diagram of a control method provided by an embodiment of the present application;

[0019] Figure 9 It is a flowchart schematic diagram of another control method provided by an embodiment of the present application;

[0020] Figure 10 It is a structural schematic diagram of an automobile provided by an embodiment of the present application;

[0021] Figure 11 It is a structural schematic diagram of a vehicle-mounted computer of an automobile provided by an embodiment of the present application;

[0022] Figure 12 It is a structural schematic diagram of a controller of an anti-fouling device for an automobile reverse camera provided by an embodiment of the present application.

[0023] Explanation of reference numerals:

[0024] 1. Anti-fouling device for automobile reverse camera; 11. Cleaning chamber; 111. Liquid spraying port; 112. Air blowing port; 12. Lens; 13. Rotating motor; 14. Soft storage door; 141. Sealing strip; 142. Door gap; 15. Cleaning member; 16. Liquid sprayer; 17. Hair dryer; 18. Controller; 181. Second processor; 182. Second memory; 183. Second computer program; 19A. First bracket; 19B. Second bracket; 191. Circular frame; 192. Connecting member; 193. Arc-shaped clamping member; 194. Clamping groove; 2. Automobile; 21. Vehicle-mounted computer; 211. First processor; 212. First memory; 213. First computer program; 22. Reverse camera. Detailed implementation manners

[0025] In the following description, specific details such as specific system architectures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0026] Please refer to Figures 1-4, an anti-fouling device 1 for an automotive reverse camera provided by an embodiment of the present application. The anti-fouling device 1 for an automotive reverse camera can be applied to an automobile equipped with a reverse camera, such as Figure 1 As shown, the anti-fouling device 1 for an automotive reverse camera includes:

[0027] A cleaning chamber 11, embedded in a position near the reverse camera at the rear of the vehicle. The cleaning chamber 11 has a cavity with an opening. At least one liquid spraying port 111 and a blowing port 112 are provided on the inner wall of the cavity; there are two lenses 12. The two lenses 12 are connected side by side along a plane. The two lenses 12 are rotatably connected to the cleaning chamber 11. When one of the lenses 12 rotates in front of the reverse camera, the other lens 12 is located in the cavity of the cleaning chamber 11; a rotary motor 13, fixed on the cleaning chamber 11 and rotatably connected to the connection position of the two lenses 12; a soft chamber door 14, arranged on the opening of the cleaning chamber 11 and having a door slit 142 extending along the opening direction; a cleaning member 15, arranged on the inner wall of the cavity opposite to the two sides of the lens 12; a liquid sprayer 16, arranged on the cleaning chamber 11 or the vehicle. The liquid sprayer 16 is communicated with the at least one liquid spraying port 111 and can spray liquid into the cavity through the liquid spraying port 111; a hair dryer 17, arranged on the cleaning chamber 11 or the vehicle. The hair dryer 17 is communicated with the at least one blowing port 112 and can blow air into the cavity through the blowing port 112; a controller 18, respectively connected to the rotary motor 13, the liquid sprayer 16 and the hair dryer 17.

[0028] The working principle of the above anti-fouling device 1 for an automotive reverse camera is as follows: The positions of the two lenses 12 are respectively located in the cleaning chamber 11 and in front of the reverse camera. Since the lens 12 is connected to the rotary motor 13, the rotary motor 13 can drive the lens 12 to rotate. When the lens 12 in front of the reverse camera is contaminated, the controller 18 can be used to control the rotary motor 13 to drive the lens 12 to rotate, so that the lens 12 located in the cleaning chamber 11 rotates in front of the reverse camera, and the lens 12 in front of the reverse camera rotates into the cleaning chamber 11. By this way of timely replacing the lens 12, the cleanliness of the lens 12 in front of the reverse camera can be quickly restored; at the same time, the cleaning member 15, the liquid sprayer 16 and the hair dryer 17 in the cleaning chamber 11, etc. will cooperate to clean the contaminated lens 12 to make it clean again and prepare for the next switching to a clean state.

[0029] It can be seen that according to the above-mentioned anti-fouling device 1 for a vehicle reversing camera, when the lens 12 in front of the reversing camera is contaminated, the clean lens 12 in the cleaning chamber 11 can be timely switched in front of the reversing camera, so that the contaminated lens 12 enters the cleaning chamber 11, and the cleaning chamber 11 cleans the contaminated lens 12, thereby being able to automatically clean the lens 12 in front of the reversing camera in a timely manner, ensuring the normal use of the reversing camera, and further improving the safety of vehicle driving.

[0030] The outer shape of the cleaning chamber 11 is preferably a cube. For example, in combination Figure 3 speaking, the cleaning chamber 11 is a cuboid or a cube, and the opening of the cleaning chamber 11 is provided on three adjacent side surfaces in the lateral direction of the cuboid or cube, so that the lens 12 can be transferred into or out of the cavity of the cleaning chamber 11 through the opening. In addition, the liquid spraying port 111 and the air blowing port 112 can be provided on the fourth side surface in the lateral direction of the cuboid or cube, or the liquid spraying port 111 and the air blowing port 112 can be provided on the end surfaces in the up and down directions of the cuboid or cube, and the liquid spraying port 111 and the air blowing port 112 can be adjacent to each other or separated from each other, and the present application does not limit this.

[0031] Among them, the number of the liquid spraying port 111 and the air blowing port 112 is at least one. Specifically, the liquid spraying port 111 and the air blowing port 112 can also be a through hole, that is, there is only one through hole on the liquid spraying port 111 that penetrates the cleaning chamber 11 and communicates with the inner cavity, and this one through hole can be respectively connected to the hair dryer 17 and the liquid sprayer 16 through a double-pass joint. In addition, the liquid spraying port 111 and the air blowing port 112 can be two independent through holes, that is, there are at least two through holes on the liquid spraying port 111 that penetrate the cleaning chamber 11 and communicate with the inner cavity. One of the through holes is used as the liquid spraying port 111 and is connected to the liquid sprayer 16, and the other through hole is used as the air blowing port 112 and is connected to the hair dryer 17. It can be understood that two or more through holes can also be provided on the cleaning chamber 11 as the liquid spraying port 111 or the air blowing port 112, and the present application does not limit this.

[0032] The shape of the lens 12 is preferably a circular lens 12, and the specific implementation manner of connecting two lenses 12 side by side is not unique.

[0033] For example, in one embodiment, two lenses 12 are connected side by side through the first bracket 19A. Specifically, please refer to Figure 5, the first bracket 19A includes two circular frames 191 and a connecting member 192. The two circular frames 191 are in the same plane. The connecting member 192 is disposed in the middle of the two circular frames 191 and fixedly connected to the edge of each circular frame 191. The connecting member 192 is connected to the output shaft of the rotating motor 13. The two lenses 12 are correspondingly fixedly connected within the two circular frames 191 and fixedly connected to the circular frames 191. The ways of fixed connection include but are not limited to snap connection and adhesive fixation.

[0034] For another example, in one embodiment, the two lenses 12 are connected side by side through a second bracket 19B. Specifically, please refer to Figure 6 and Figure 7 , the second bracket 19B includes two arc-shaped clamping members 193 and a connecting member 192. The arc-shaped clamping member 193 has a clamping groove 194. The two arc-shaped clamping members 193 are connected to the connecting member 192 back to back and symmetrically. The connecting member 192 is connected to the output shaft of the rotating motor 13. The edges of the two lenses 12 are correspondingly fixedly connected within the clamping grooves 194 of the two arc-shaped clamping members 193 and fixedly connected to the clamping grooves 194. The ways of fixed connection include but are not limited to snap connection and adhesive fixation.

[0035] Specifically, the connecting member 192 can be specifically implemented as structures such as a spherical ball, a sleeve or a rotating shaft, etc. For example, as Figure 5 and Figure 6 shown, the connecting member 192 is preferably a spherical ball, and the spherical ball can be fixedly welded to the output shaft of the rotating motor 13.

[0036] The rotating motor 13 is a kind of electric motor that provides power in a rotating manner. Specifically, the rotating motor 13 uses electricity or other energy sources to convert energy into mechanical motion. The principle of the rotating motor 13 is to generate force and rotation through the interaction between the magnetic field and the current. Among them, the structure of the rotating motor 13 includes a stator and a rotor. The stator is the fixed part, and the rotor can rotate, that is, the above-mentioned output shaft. Since the output shaft of the rotating motor 13 is connected to the connecting member 192, when the rotating motor 13 rotates, it can drive the two lenses 12 to rotate.

[0037] In this embodiment, the rotating motor 13 is preferably a stepper motor, that is, it can control the motor to rotate a fixed angle according to a signal. For example, the rotating motor 13 takes a 180° rotation as one rotation unit. In this way, no matter how the rotating motor 13 rotates, it can ensure that the lenses 12 are divided into being in front of the reversing camera and in the cleaning bin 11 after rotating with the rotating motor 13, thus avoiding the situation that the lenses 12 are not or not completely covering in front of the reversing camera after the rotating motor 13 drives the lenses 12 to rotate, and preventing the position of the lenses 12 from being misaligned.

[0038] The main function of the flexible chamber door 14 is to seal the opening on the cleaning chamber 11, prevent dust from entering the cavity and contaminating the lens 12, and at the same time allow the lens 12 to pass through. Among them, the specific implementation method of the flexible chamber door 14 in actual application is not unique.

[0039] For example, in one embodiment, in combination with Figure 3 it is said that the flexible chamber door 14 includes two sealing strips 141. One of the sealing strips 141 is fixed on one side of the opening of the cleaning chamber 11, and the other sealing strip 141 is fixed on the other side of the opening of the cleaning chamber 11. And the two sealing strips 141 are butt-jointed to form a door slit 142 that can close the opening. When the lens 12 rotates past the opening, the lens 12 passes through the door slit 142 and contacts the two sealing strips 141.

[0040] Specifically, the door slit 142 formed by the butt-joint of the two sealing strips 141 is separable. Since the flexible chamber door 14 is of a flexible structure, when the lens 12 rotates past the flexible chamber door 14, the lens 12 will squeeze the two sealing strips 141 along the rotation direction, thereby expanding the door slit 142, so that the lens 12 can pass through the flexible chamber door 14 from the door slit 142 into or out of the inner cavity. And the edge of the sealing strip 141 will also play a role in scraping the lens 12 when contacting the lens 12, which is beneficial to scrape off the pollutants on the lens 12.

[0041] Preferably, the sealing strip 141 includes any one of a silica gel strip, a rubber sealing strip, a PVC strip, a foaming sealing strip, and an ethylene propylene diene monomer (EPDM) sealing strip.

[0042] The cleaning member 15 is fixed on the inner wall of the cavity opposite to the two sides in the thickness direction of the lens 12 and contacts the lens 12. In this way, when the lens 12 rotates, through the contact friction between the cleaning member 15 and the lens 12, the pollutants on the lens 12 can be quickly cleaned off.

[0043] Specifically, the specific implementation structure of the cleaning member 15 is not unique. For example, the cleaning member 15 includes a cleaning cloth, a cleaning foam, or a cleaning brush. Of course, in actual application, the cleaning member 15 can also adopt other structures, and this application does not limit this.

[0044] The liquid sprayer 16 is an automatic liquid spraying device for automatically spraying liquid. For example, the liquid sprayer 16 can be implemented as a water pump, or it can also be implemented as other structures, and this application does not limit this.

[0045] The hair dryer 17 is a blowing device for blowing cold air or hot air into the cavity. The specific implementation structure of the hair dryer 17 can adopt existing products or devices with the same working principle as existing products. Its specific implementation method is not unique, and this application does not limit the specific implementation structure of the hair dryer 17.

[0046] The controller 18 can be a microcomputer system. For example, the controller 18 is a single-chip microcomputer and can control the hair dryer 17, the liquid sprayer 16, and the rotary motor 13. Alternatively, the controller 18 can also be a control module, that is, an integrated control chip module, for connecting to and controlling the hair dryer 17, the liquid sprayer 16, and the rotary motor 13. Specifically, for the specific structure of the controller 18, reference can be made to the vehicle embodiment below, which will not be elaborated here.

[0047] Please refer to Figure 8 , the embodiment of the present application provides a control method, which is used to control the anti-fouling device of the vehicle rearview camera, such as Figure 8 shown, the control method includes:

[0048] S801, when receiving an instruction that the lens in front of the rearview camera is contaminated, monitor whether the vehicle is in a reverse state;

[0049] S802, if so, control the rotary motor to rotate 180°; rotate the lens located in the cavity of the cleaning chamber to in front of the rearview camera;

[0050] S803, if not, control the rotary motor to rotate for a first preset duration, and at the same time control the liquid sprayer to spray liquid into the cavity of the cleaning chamber. When the first preset duration expires, control the rotary motor to stop rotating and the liquid sprayer to stop spraying, and then control the hair dryer to blow air into the cavity of the cleaning chamber.

[0051] Specifically, in combination with Figures 1 to 7 it, the rotary motor 13 preferably takes a 180° rotation as a rotation unit. In this way, no matter how the rotary motor 13 rotates, after stopping, one of the lenses 12 always remains in the cleaning chamber 11, and the other lens 12 is in front of the rearview camera, without misalignment.

[0052] Specifically, the vehicle can be divided into a reverse state and a non-reverse state. In the reverse state, if a command that the lens 12 in front of the vehicle camera is contaminated is received, the rotation motor 13 is controlled to rotate 180° to rotate the clean lens 12 in the cavity of the cleaning chamber 11 in front of the reverse camera, replacing the contaminated lens 12 so that the reverse camera can be used normally. However, since the cleaning chamber 11 needs to rotate the lens 12 multiple times to clean the contaminated lens 12 more thoroughly, after the clean lens 12 is switched in front of the reverse camera, continue to return to monitor whether the vehicle is in the reverse state. If the vehicle completes reversing and returns to the non-reverse state, at this time, since the reverse rearview mirror is not used, the rotation motor 13 is controlled to rotate for a first preset duration to keep the lens 12 rotating all the time. At the same time, a cleaning liquid is sprayed into the cavity of the cleaning chamber 11 to clean the lens 12. Then, the rotation motor 13 and the liquid spraying are stopped, and then the hair dryer 17 is used to blow air into the cavity of the cleaning chamber 11 to dry the moisture in the lens 12 and the cleaning chamber 11, keeping the lens 12 and the cleaning chamber 11 clean and preparing for switching the lens 12 next time.

[0053] Specifically, the working durations of the rotation motor 13, the liquid sprayer 16, and the hair dryer 17 are controllable. In this embodiment, the first preset duration can be a duration threshold set according to user experience or experimental data, or a new duration threshold obtained by adjusting the duration threshold according to user settings. This application does not limit this.

[0054] Preferably, in this embodiment Figure 8 The above method for controlling the anti-fouling device of the vehicle reverse camera can be applied to a vehicle and is executed by the controller 18 of the vehicle reverse camera anti-fouling device.

[0055] According to the above Figure 8 According to the provided control method, when a command that the lens 12 in front of the reverse camera is contaminated is received, it is monitored whether the vehicle is in the reverse state; if so, the rotation motor 13 is controlled to rotate 180°; the lens 12 in the cavity of the cleaning chamber 11 is rotated in front of the reverse camera; if not, the rotation motor 13 is controlled to rotate for a first preset duration, and at the same time, the liquid sprayer 16 is controlled to spray liquid into the cavity of the cleaning chamber 11. When the first preset duration expires, the rotation of the rotation motor 13 and the liquid spraying of the liquid sprayer 16 are stopped, and then the hair dryer 17 is controlled to blow air into the cavity of the cleaning chamber 11. In this way, whether the vehicle is in reverse or other scenarios, as long as the lens 12 in front of the reverse camera is contaminated, the clean lens 12 in the cleaning chamber 11 can be switched in front of the reverse camera, and the contaminated lens 12 can be cleaned in the cleaning chamber 11, so that the normal use of the reverse camera can be ensured at all times, improving the safety of vehicle driving.

[0056] Please refer to Figure 9 , this embodiment of the present application also provides another control method, which is used to control the anti-fouling device of the vehicle rearview camera, as Figure 9 shown. This control method includes:

[0057] S901, based on the vehicle head unit of the vehicle, control the rearview camera to collect at least one image;

[0058] S902, use an image recognition algorithm to recognize the at least one image, and determine whether the lens in front of the rearview camera is contaminated;

[0059] S903, when the lens is contaminated, send an instruction that the lens in front of the vehicle rearview camera is contaminated to the controller of the vehicle rearview camera anti-fouling device;

[0060] S904, the controller of the vehicle rearview camera anti-fouling device receives the instruction that the lens in front of the rearview camera is contaminated, and monitors whether the vehicle is in a reverse state;

[0061] S905, if so, control the rotary motor to rotate 180°; rotate the lens located in the cavity of the cleaning chamber to in front of the rearview camera;

[0062] S906, if not, control the rotary motor to rotate for a first preset duration, and at the same time control the sprayer to spray liquid into the cavity of the cleaning chamber. When the first preset duration expires, control the rotary motor to stop rotating and the sprayer to stop spraying, and then control the blower to blow air into the cavity of the cleaning chamber.

[0063] Among them, combined with Figures 1 to 8 speaking, the difference between this embodiment and the above Figure 8 method embodiment is that: an identification step for whether the lens 12 in front of the rearview camera is contaminated is added, and the steps of this method are executed by at least two execution entities. More specifically, the above steps S901 - S903 are executed by the vehicle head unit of the vehicle, and the steps S904 - S906 are executed by the controller 18 of the vehicle rearview camera anti-fouling device.

[0064] Specifically, in the above step S902, the specific implementation of using an image recognition algorithm to recognize the at least one image to determine whether the lens 12 in front of the reverse camera is contaminated is not unique. For example, images of various contaminated and uncontaminated reverse cameras can be collected as samples, and the machine learning module can be trained using these samples to obtain a target recognition model that can automatically recognize images to determine whether the reverse camera is contaminated. Then, the target recognition model can be arranged in the in-vehicle computer of the vehicle to automatically recognize the images collected by the reverse camera, so as to obtain the recognition result of whether the lens 12 in front of the reverse camera is contaminated, that is, the recognition result includes two results: the lens 12 is contaminated and not contaminated. If it is the case of not being contaminated, then return to S901 to continue monitoring; if it is the case of being contaminated, then send an instruction to the controller 18 of the anti-fouling device of the vehicle reverse camera, so as to execute the above steps S904 - S906 to switch the contaminated lens 12 to a clean lens 12 and clean the contaminated lens 12.

[0065] It is understandable that in actual use, other implementation methods can also be adopted to recognize the at least one image to determine whether the lens 12 in front of the reverse camera is contaminated, and it is not limited to the above implementation method, and this application does not make any restrictions in this regard.

[0066] In addition, please refer to Figure 10 , this embodiment of the application also provides a vehicle 2, as Figure 10 shown, the vehicle 2 at least includes an in-vehicle computer 21, a reverse camera 22, and the above anti-fouling device for the vehicle reverse camera 22. The in-vehicle computer 21 is respectively connected to the reverse camera 22 and the controller 18 of the anti-fouling device for the vehicle reverse camera 22.

[0067] Specifically, please refer to Figure 11 , the in-vehicle computer 21 of the vehicle 2 includes: a first processor 211, a first memory 212, and a first computer program 213 stored in the first memory 212 and executable on the first processor 211. When the first processor 211 executes the first computer program 213, the steps S901 - S903 in the method embodiment described above are implemented. Figure 9

[0068] Specifically, please refer to Figure 12 , the controller 18 of the anti-fouling device for the vehicle reverse camera 22 includes: a second processor 181, a second memory 182, and a second computer program 183 stored in the second memory 182 and executable on the second processor 181. When the second processor 181 executes the second computer program 183, the steps in each method embodiment described above are implemented. Or, when the second processor 181 executes the second computer program 183, the above Figure 8 ​Figure 9 Steps S904 - S906 of the method

[0069] The in - vehicle computer 21 of the vehicle 2 can be an electronic device such as a body computer, an in - vehicle host, a vehicle main control device, etc. The controller 18 can be a customized integrated control module, or it can also be a microcomputer such as a single - chip microcomputer. Among them, the in - vehicle computer 21 can include but is not limited to a first processor 211 and a first memory 212; similarly, the controller 18 includes but is not limited to a second processor 181 and a second memory 182. Those skilled in the art can understand that Figure 11 It is only an example of the in - vehicle computer 21 and does not constitute a limitation on the in - vehicle computer 21. It can include more or fewer components than shown in the figure, or different components.

[0070] The first processor 211 and the second processor 181 can be a Central Processing Unit (CPU), or other general - purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field - Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0071] The first memory 212 and the second memory can respectively be the internal storage units of the in - vehicle computer 21 and the controller 18. For example, the hard disk or memory of the in - vehicle computer 21 or the controller 18. The first memory 212 and the second memory can also be external storage devices of the in - vehicle computer 21 and the controller 18. For example, a plug - in hard disk equipped on the in - vehicle computer 21, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc. The first memory 212 and the second memory can also include both the internal storage units of the in - vehicle computer 21 and the controller 18 and external storage devices. The first memory 212 and the second memory are used to store computer programs and other programs and data required by the in - vehicle computer 21 and the controller 18.

[0072] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the above-mentioned division of each functional unit and module is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiments can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0073] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, to implement all or part of the processes in the above-mentioned embodiment methods of this application, it can also be completed by instructing relevant hardware through the first computer program 213 and the second computer program 183. The computer program can be stored in a computer-readable storage medium. When the first computer program 213 is executed by the first processor 211, or the second computer program 183 is executed by the second processor 181, the corresponding steps of the above-mentioned various method embodiments can be implemented. The first computer program 213 and the second computer program 183 can include computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device that can carry computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0074] The above embodiments are only used to illustrate the technical solutions of this application, rather than to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of this application, and should all be included in the protection scope of this application.

Claims

1. An anti-fouling device for a car reverse camera, characterized in that, Comprising: A cleaning bin, embedded in the tail of the vehicle near the reversing camera. The cleaning bin has a cavity with an opening, and at least one liquid spraying port and a blowing port are provided on the inner wall of the cavity; Lenses, two in number. The two lenses are connected side by side along a plane and are rotatably connected to the cleaning bin. When one lens rotates in front of the reversing camera, the other lens is located inside the cavity of the cleaning bin; A rotary motor, fixed on the cleaning bin and rotatably connected to the connection position of the two lenses; A soft bin door, arranged on the opening of the cleaning bin and having a door slit extending along the opening direction; A cleaning member, arranged on the inner wall of the cavity opposite to both sides of the lens; A liquid sprayer, arranged on the cleaning bin or the vehicle. The liquid sprayer is communicated with the at least one liquid spraying port and can spray liquid into the cavity through the liquid spraying port; A hair dryer, arranged on the cleaning bin or the vehicle. The hair dryer is communicated with the at least one blowing port and can blow air into the cavity through the blowing port; A controller, respectively connected to the rotary motor, the liquid sprayer and the hair dryer; The control method includes: When receiving an instruction that the lens in front of the reversing camera is contaminated, monitoring whether the vehicle is in a reversing state; If so, controlling the rotary motor to rotate 180°; rotating the lens located inside the cavity of the cleaning bin in front of the reversing camera; If not, controlling the rotary motor to rotate for a first preset duration, and simultaneously controlling the liquid sprayer to spray liquid into the cavity of the cleaning bin. When the first preset duration expires, controlling the rotary motor to stop rotating and the liquid sprayer to stop spraying liquid, and then controlling the hair dryer to blow air into the cavity of the cleaning bin.

2. The anti-fouling device for a vehicle rearview camera according to claim 1, characterized in that, The soft bin door includes two sealing strips. One sealing strip is fixed on one side of the opening of the cleaning bin, and the other sealing strip is fixed on the other side of the opening of the cleaning bin. And the two sealing strips are butted against each other to form a door slit capable of closing the opening. When the lens rotates through the opening, the lens passes through the door slit and contacts the two sealing strips.

3. The anti-fouling device for a vehicle rearview camera according to claim 2, characterized in that, The sealing strip includes a silicone rubber strip or a PVC rubber strip.

4. The anti-fouling device for a vehicle rearview camera according to claim 1, characterized in that, The cleaning member contacts both sides of the lens in the cavity in the thickness direction, and the cleaning member includes a cleaning cloth, a cleaning foam or a cleaning brush.

5. The anti-fouling device for a vehicle rearview camera according to claim 1, characterized in that, The lens is a circular lens, and the two lenses are connected side by side through a first bracket; The first bracket includes two circular frames and a connecting member. The two circular frames are in the same plane. The connecting member is arranged in the middle of the two circular frames and is fixedly connected to the edge of each circular frame. The connecting member is connected to the output shaft of the rotary motor, and the two lenses are correspondingly fixedly connected inside the two circular frames.

6. The anti-fouling device for a motor vehicle reversing camera according to claim 1, characterized in that, The lens is a circular lens, and the two lenses are connected side by side through a second bracket; The second bracket includes two arc-shaped clamping members and a connecting member. The arc-shaped clamping member has a clamping groove. The two arc-shaped clamping members are connected to the connecting member back to back and symmetrically. The connecting member is connected to the output shaft of the rotary motor, and the edges of the two lenses are correspondingly fixedly connected inside the clamping grooves of the two arc-shaped clamping members.

7. The anti-fouling device for a vehicle reverse camera according to claim 5 or 6, characterized in that, The connecting member includes a spherical ball, a sleeve or a rotating shaft.

8. A control method for controlling the anti-fouling device of an automotive reverse camera according to any one of claims 1-7, characterized in that, The method includes: Based on the vehicle's in-vehicle computer, controlling the reversing camera to collect at least one image; Use an image recognition algorithm to recognize the image and determine whether the lens in front of the reverse camera is contaminated; When the lens is contaminated, send an instruction that the lens in front of the reverse camera is contaminated to the controller of the anti-fouling device for the car reverse camera; The controller of the anti-fouling device for the car reverse camera receives the instruction that the lens in front of the reverse camera is contaminated and monitors whether the vehicle is in a reverse state; If so, control the rotary motor to rotate 180°; rotate the lens located in the cavity of the cleaning chamber in front of the reverse camera; If not, control the rotary motor to rotate for a first preset duration, and at the same time control the sprayer to spray liquid into the cavity of the cleaning chamber. When the first preset duration expires, control the rotary motor to stop rotating and the sprayer to stop spraying, and then control the blower to blow air into the cavity of the cleaning chamber.

9. A vehicle, characterized in that, It includes at least a car radio, a reverse camera, and the anti-fouling device for the car reverse camera according to any one of claims 1-7, and the car radio is respectively connected to the reverse camera and the controller of the anti-fouling device for the car reverse camera; The controller includes a first memory, a first processor, and a first computer program stored in the first memory and executable on the first processor. When the first processor executes the first computer program, it implements the steps of the control method according to claim 1; The car radio includes a second memory, a second processor, and a second computer program stored in the second memory and executable on the second processor. When the second processor executes the second computer program, it implements the steps of the control method according to claim 8.

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