A method and system for defogging a front cover of a vehicle camera

Abstract

The application discloses a kind of vehicle camera front cover defogging method and system, belong to vehicle intelligent driving control technical field, the method, comprising: when obtaining auxiliary driving opening instruction, obtaining vehicle camera front cover image;Vehicle camera front cover image is identified, to determine whether there is water mist on vehicle camera front cover;When determining that there is no water mist on vehicle camera front cover, control auxiliary driving function is opened;When determining that there is water mist on vehicle camera front cover, vehicle camera front cover is heated, until there is no water mist on vehicle camera front cover, control auxiliary driving function is opened.The safe operation of vehicle auxiliary driving function after being opened is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent vehicle control, in particular to a method and system for removing fog from a cover in front of a vehicle camera. BACKGROUND

[0002] Due to the rapid development of the automotive industry, automatic driving technology is becoming more mature, and more and more automatic driving assistance functions are applied to the automotive field. Controllers or sensors that realize these functions are distributed in various places of the vehicle. If one of the components is affected by the environment, there is a high probability that the controller or sensor at that location will malfunction, thereby affecting the use of the automatic driving function, and more seriously, causing accidents.

[0003] Since the auxiliary driving of the vehicle relies on the vehicle camera, some cameras are installed at the cover behind the rearview mirror of the vehicle. Therefore, when there is water mist at the cover in front of the camera, the camera is blocked, which affects the safe operation of the vehicle auxiliary driving.

[0004] In related technologies, when the auxiliary driving mode is started, whether there is water mist at the cover is not determined. When there is water mist at the cover, the auxiliary driving is started, which affects the safe operation of the auxiliary driving. In addition, there is currently a heating wire added to the windshield of the vehicle, which removes the water mist on the cover and the windshield by heating the heating wire or the air conditioning in the vehicle. However, the heating wire is used for heating when there is water mist on the entire glass, and because the heating range is large, the water mist removal time is very long, the water mist cannot be removed in the short term, the air conditioner is not easy to blow into this cover area, and the time required to disperse the water mist in this area by relying only on the air conditioner is long, which affects the safe operation of the auxiliary driving. SUMMARY

[0005] The present application provides a method and system for removing fog from a cover in front of a vehicle camera, which ensures the safe operation of the vehicle auxiliary driving function after it is started. The technical solution of the present application is as follows.

[0006] In a first aspect, a method for removing fog from a cover in front of a vehicle camera is provided, comprising:

[0007] When an auxiliary driving start instruction is obtained, an image of the cover in front of the vehicle camera is obtained;

[0008] The image of the cover in front of the vehicle camera is identified to determine whether there is water mist on the cover in front of the vehicle camera;

[0009] When it is determined that there is no water mist on the cover in front of the vehicle camera, the auxiliary driving function is started;

[0010] When it is determined that there is water mist on the front cover of the vehicle-mounted camera, the front cover of the vehicle-mounted camera is heated until there is no water mist on the front cover of the vehicle-mounted camera, and the auxiliary driving function is controlled to be turned on.

[0011] Optionally, when it is determined that there is water mist on the front cover of the vehicle-mounted camera, the proportion of the water mist area in the image of the front cover of the vehicle-mounted camera is also determined, the front cover of the vehicle-mounted camera is heated at a low power when the proportion is less than a proportion threshold, and the front cover of the vehicle-mounted camera is heated at a high power when the proportion is greater than or equal to the proportion threshold.

[0012] Optionally, after the vehicle starts the auxiliary driving function, an inside-outside temperature difference value of the vehicle is obtained.

[0013] When the inside-outside temperature difference value of the vehicle is greater than or equal to a temperature difference threshold, the front cover of the vehicle-mounted camera is heated until the inside-outside temperature difference value of the vehicle is less than the temperature difference threshold.

[0014] Optionally, when the inside-outside temperature difference value of the vehicle is greater than or equal to the temperature difference threshold, an error between the inside-outside temperature difference value of the vehicle and the temperature difference threshold is also calculated, the front cover of the vehicle-mounted camera is heated at a low power when the error is less than a set temperature error threshold, and the front cover of the vehicle-mounted camera is heated at a high power when the error is greater than or equal to the set temperature error threshold.

[0015] In a second aspect, a front cover de-fogging system of a vehicle-mounted camera is provided, which comprises:

[0016] a heating module configured to heat the front cover of the vehicle-mounted camera;

[0017] an image acquisition unit configured to acquire an image of the front cover of the vehicle-mounted camera when an auxiliary driving start instruction is acquired;

[0018] an image recognition unit configured to recognize the image of the front cover of the vehicle-mounted camera to determine whether there is water mist on the front cover of the vehicle-mounted camera;

[0019] a control unit configured to control the auxiliary driving function to be turned on when it is determined that there is no water mist on the front cover of the vehicle-mounted camera, and heat the front cover of the vehicle-mounted camera until there is no water mist on the front cover of the vehicle-mounted camera, and control the auxiliary driving function to be turned on when it is determined that there is water mist on the front cover of the vehicle-mounted camera.

[0020] Optionally, the system further comprises a temperature difference sensor.

[0021] The temperature difference sensor is configured to obtain an inside-outside temperature difference value of the vehicle.

[0022] The control unit is further configured to, after the vehicle starts the auxiliary driving function, control the heating module to heat the front cover of the vehicle-mounted camera when the temperature difference between the inside and outside of the vehicle is greater than or equal to the temperature difference threshold value, until the temperature difference between the inside and outside of the vehicle is less than the temperature difference threshold value.

[0023] Optionally, the heating module is installed at a transparent area of the front cover of the vehicle-mounted camera.

[0024] Optionally, the temperature difference sensor is installed on the front cover of the vehicle-mounted camera.

[0025] Optionally, the heating module has a high-power heating gear and a low-power heating gear.

[0026] In a third aspect, a computer device is provided, and the device comprises:

[0027] a processor adapted to execute a computer program;

[0028] a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is executed by the processor to implement the method for defogging the front cover of the vehicle-mounted camera according to the first aspect.

[0029] The technical scheme provided by the present application has the following beneficial effects:

[0030] The method for defogging the front cover of the vehicle-mounted camera provided by the present application comprises the following steps: after receiving a start instruction of an auxiliary driving function, it is determined whether water mist exists on the front cover of the vehicle-mounted camera; when it is determined that water mist exists on the front cover of the vehicle-mounted camera, the front cover of the vehicle-mounted camera is heated until no water mist exists on the front cover of the vehicle-mounted camera; and then the auxiliary driving function is started, so that the safe operation of the vehicle after the auxiliary driving function is started is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0032] Figure 1 The auxiliary function starting flowchart of the method for defogging the front cover of the vehicle-mounted camera disclosed by the embodiments;

[0033] Figure 2 The flowchart of the method for defogging the front cover of the vehicle-mounted camera disclosed by the embodiments.

[0034] The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application. DETAILED DESCRIPTION

[0035] To make the objects, technical solutions and advantages of the present application clearer, the following further describes the present application in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0036] Before the vehicle-mounted camera front cover defogging method is described, the application scenario of the vehicle-mounted camera front cover defogging method is introduced.

[0037] The vehicle-mounted camera front cover defogging method is applied when the auxiliary driving function of the vehicle is started and during the driving of the vehicle.

[0038] Due to the rapid development of the automobile industry, the automatic driving technology is more and more mature, and more and more automatic driving auxiliary functions are applied to the automobile field. The controllers or sensors for realizing these functions are distributed in various places of the automobile. If one of the components is affected by the environment, there is a high probability that the controller or sensor at the place will be affected, thereby affecting the use of the automatic driving function, and more seriously, causing an accident.

[0039] Since the auxiliary driving of the vehicle depends on the vehicle camera, some cameras are installed at the cover behind the rearview mirror of the vehicle. Therefore, when there is water mist in front of the cover of the camera, the camera is blocked, which affects the safe operation of the auxiliary driving of the vehicle.

[0040] In the related art, when the auxiliary driving mode is started, whether there is water mist in the cover is not determined. When there is water mist in the cover, the auxiliary driving is started, which affects the safe operation of the auxiliary driving. In addition, there is currently a heating wire added in the windshield of the vehicle. The cover and the windshield are defogged by heating the heating wire or the air conditioner in the vehicle. However, the heating wire is used for heating when there is water mist on the whole glass. Because the heating range is large, the water mist removal time is long, the water mist in the cover cannot be removed in a short period of time, the air conditioner blowing is not easy to enter the cover area, and the time required for dispersing the water mist in the area by the air conditioner alone is long, which affects the safe operation of the auxiliary driving.

[0041] The vehicle-mounted camera front cover defogging method provided by the present application is applied to a vehicle with an auxiliary driving function. The vehicle comprises an image acquisition unit, a heating module, an image recognition unit, a temperature difference sensor and a control unit.

[0042] a heating module, configured to heat the front cover of the vehicle-mounted camera;

[0043] an image acquisition unit, configured to acquire the image of the front cover of the vehicle-mounted camera after acquiring the instruction of starting the auxiliary driving;

[0044] an image recognition unit, configured to recognize the image of the front cover of the vehicle-mounted camera and determine whether there is water mist on the front cover of the vehicle-mounted camera;

[0045] a temperature difference sensor, configured to acquire the temperature difference value between the inside and outside of the vehicle;

[0046] a control unit, configured to control the heating module to heat the front cover of the vehicle-mounted camera until there is no water mist on the front cover of the vehicle-mounted camera and the auxiliary driving function is started when it is determined that there is water mist on the front cover of the vehicle-mounted camera, and control the heating module to heat the front cover of the vehicle-mounted camera until the temperature difference value between the inside and outside of the vehicle is less than the temperature difference threshold when the temperature difference value between the inside and outside of the vehicle is greater than or equal to the temperature difference threshold after the vehicle starts the auxiliary driving function.

[0047] Those skilled in the art shall understand that the application scenarios and modules in the vehicle described above are only examples, and other existing or future application scenarios and modules, such as those applicable to the embodiments of the present application, shall also be included in the protection scope of the embodiments of the present application and are hereby incorporated by reference.

[0048] It should be noted that the business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems as new business scenarios appear.

[0049] Next, a vehicle-mounted camera front cover defogging method provided by the present application will be explained in detail. Figure 1 is a flowchart of starting the auxiliary driving of a vehicle-mounted camera front cover defogging method provided by the present application, Figure 2 is a flowchart of determining whether to heat the cover to defog a vehicle-mounted camera front cover defogging method provided by the present application; reference Figure 1 、 Figure 2 The vehicle-mounted camera front cover defogging method provided by the present application comprises the following steps.

[0050] acquiring the image of the front cover of the vehicle-mounted camera after acquiring the instruction of starting the auxiliary driving;

[0051] recognizing the image of the front cover of the vehicle-mounted camera and determining whether there is water mist on the front cover of the vehicle-mounted camera;

[0052] when it is determined that there is no water mist on the front cover of the vehicle-mounted camera, the auxiliary driving function is controlled to be turned on;

[0053] when it is determined that there is water mist on the front cover of the vehicle-mounted camera, the front cover of the vehicle-mounted camera is heated until there is no water mist on the front cover of the vehicle-mounted camera, and the auxiliary driving function is controlled to be turned on.

[0054] Therefore, the de-fogging method for the front cover of the vehicle-mounted camera provided in the application first determines whether there is water mist on the front cover of the vehicle-mounted camera after receiving the start instruction of the auxiliary driving function, heats the front cover of the vehicle-mounted camera when it is determined that there is water mist on the front cover of the vehicle-mounted camera, until there is no water mist on the front cover of the vehicle-mounted camera, and then controls the auxiliary driving function to be turned on, thereby ensuring the safe operation of the vehicle after the auxiliary driving function is started.

[0055] In the application, whether the auxiliary driving function is turned on in the stationary state of the vehicle or in the driving state of the vehicle, after the start instruction of the auxiliary driving function is obtained, it is first determined whether there is water mist on the front cover of the vehicle-mounted camera, and only when there is no water mist on the front cover of the vehicle-mounted camera, the auxiliary driving function is directly controlled to be turned on; when it is determined that there is water mist, the front cover of the vehicle-mounted camera needs to be heated to remove the water mist, and only when the water mist on the front cover of the vehicle-mounted camera is completely removed, the auxiliary driving function is controlled to be turned on.

[0056] In order to improve the efficiency of removing water mist from the front cover of the vehicle-mounted camera, the application limits that when it is determined that there is water mist on the front cover of the vehicle-mounted camera, the proportion of the water mist area in the image of the front cover of the vehicle-mounted camera is also determined, the front cover of the vehicle-mounted camera is heated at low power when the proportion is less than a proportion threshold, and the front cover of the vehicle-mounted camera is heated at high power when the proportion is greater than or equal to the proportion threshold.

[0057] Specifically, the image recognition unit is used to determine whether there is water mist on the front cover of the vehicle-mounted camera, and determine the proportion of the water mist area in the image of the front cover of the vehicle-mounted camera, and output different state signals 1x according to different proportions, x is 0 or 1; when the image recognition unit determines that there is water mist on the front cover of the vehicle-mounted camera, and the proportion of the water mist area in the image of the front cover of the vehicle-mounted camera is less than a proportion threshold, the state signal output is 10, and the control unit controls the heating module to heat the front cover of the vehicle-mounted camera at low power through a gear to remove the water mist; when the image recognition unit determines that there is water mist on the front cover of the vehicle-mounted camera, and the proportion of the water mist area in the image of the front cover of the vehicle-mounted camera is greater than or equal to the proportion threshold, the state signal output is 11, and the control unit controls the heating module to heat the front cover of the vehicle-mounted camera at high power through a gear to remove the water mist.

[0058] The image recognition unit obtains the image of the front cover of the vehicle-mounted camera in real time, so that whether the water mist on the front cover of the vehicle-mounted camera is completely removed can be determined in the first time. When it is determined that the water mist on the front cover of the vehicle-mounted camera is completely removed, a state signal 00 is output. According to the signal, the control unit controls the heating module to stop working, so that the heating of the front cover of the vehicle-mounted camera is stopped, and the auxiliary driving function is started at the same time.

[0059] Preferably, the proportion threshold is 1 / 2.

[0060] Since the temperature of the vehicle changes continuously due to weather or rain and snow during driving, water mist gradually forms on the front cover of the vehicle-mounted camera. In order to prevent the water mist on the front cover of the vehicle-mounted camera from affecting the auxiliary driving function, the vehicle internal-external temperature difference value is obtained after the auxiliary driving function is started.

[0061] When the vehicle internal-external temperature difference value is greater than or equal to the temperature difference threshold, the front cover of the vehicle-mounted camera is heated until the vehicle internal-external temperature difference value is less than the temperature difference threshold.

[0062] By monitoring the vehicle internal-external temperature difference after the auxiliary driving function is started, and then controlling whether the heating module heats the front cover of the vehicle-mounted camera, the water mist on the front cover of the vehicle-mounted camera can be effectively prevented, so that the safe operation of the vehicle after the auxiliary driving function is started is ensured.

[0063] The application also limits that when the vehicle internal-external temperature difference value is greater than or equal to the temperature difference threshold, the error between the vehicle internal-external temperature difference value and the temperature difference threshold is calculated. When the error is less than the set temperature error threshold, the front cover of the vehicle-mounted camera is heated at low power. When the error is greater than or equal to the set temperature error threshold, the front cover of the vehicle-mounted camera is heated at high power.

[0064] Specifically, the temperature difference sensor is used to obtain the vehicle internal-external temperature difference. When the vehicle internal-external temperature difference value is greater than or equal to the temperature difference threshold, the error between the vehicle internal-external temperature difference value and the temperature difference threshold is calculated. When the error is less than the set temperature error threshold, a state signal 10 is output. According to the signal, the control unit controls the heating module to heat the front cover of the vehicle-mounted camera at low power through a gear to remove the water mist. When the error is greater than or equal to the set temperature error threshold, a state signal 11 is output. According to the signal, the control unit controls the heating module to heat the front cover of the vehicle-mounted camera at high power through a gear to remove the water mist.

[0065] The temperature difference sensor acquires the temperature difference between the inside and outside of the vehicle at all times, so it can determine in the first instance whether the water mist on the cover in front of the vehicle camera has been completely removed, and when it determines that the water mist on the cover in front of the vehicle camera has been completely removed, it outputs a state signal 00, and the control unit controls the heating module to stop working according to the signal, so as to stop heating the cover in front of the vehicle camera.

[0066] The two heating modes are not independent and are associated with each other, that is, when the temperature difference between the inside and outside of the vehicle is greater than or equal to the temperature difference threshold value, or when it is determined according to the image of the cover in front of the vehicle camera that there is water mist on the cover in front of the vehicle camera, the heating module is controlled to heat the cover in front of the vehicle camera. Only when the temperature difference between the inside and outside of the vehicle is less than the temperature difference threshold value, and it is determined according to the image of the cover in front of the vehicle camera that there is no water mist on the cover in front of the vehicle camera, the heating function of the heating module for the cover in front of the vehicle camera is turned off.

[0067] Preferably, the set temperature error threshold is 5℃.

[0068] The low power is 10W and the high power is 20W.

[0069] In summary, the method for removing water mist from the cover in front of the vehicle camera provided in the present application first determines whether there is water mist on the cover in front of the vehicle camera before the auxiliary driving function is turned on, heats the cover in front of the vehicle camera when it is determined that there is water mist on the cover in front of the vehicle camera, and controls the auxiliary driving function to be turned on only when there is no water mist on the cover in front of the vehicle camera. After the auxiliary driving function is turned on, the cover in front of the vehicle camera is heated in a timely manner according to the temperature difference between the inside and outside of the vehicle, so as to prevent the formation of water mist on the cover in front of the vehicle camera and ensure the safe operation of the vehicle after the auxiliary driving function is turned on.

[0070] The present application also provides a system for removing water mist from the cover in front of the vehicle camera, comprising:

[0071] a heating module for heating the cover in front of the vehicle camera;

[0072] an image acquisition unit for acquiring an image of the cover in front of the vehicle camera after an auxiliary driving instruction is acquired;

[0073] an image recognition unit for recognizing the image of the cover in front of the vehicle camera and determining whether there is water mist on the cover in front of the vehicle camera;

[0074] a control unit for controlling the auxiliary driving function to be turned on when it is determined that there is no water mist on the cover in front of the vehicle camera, and heating the cover in front of the vehicle camera when it is determined that there is water mist on the cover in front of the vehicle camera, until there is no water mist on the cover in front of the vehicle camera, and then controlling the auxiliary driving function to be turned on.

[0075] Optionally, a temperature difference sensor is further included;

[0076] a temperature difference sensor, configured to acquire a temperature difference value between inside and outside of the vehicle;

[0077] The control unit is further configured to, after the vehicle starts the auxiliary driving function, control the heating module to heat the front cover of the vehicle-mounted camera when the temperature difference value between inside and outside of the vehicle is greater than or equal to the temperature difference threshold value, until the temperature difference value between inside and outside of the vehicle is less than the temperature difference threshold value.

[0078] Optionally, the heating module is installed at a transparent area of the front cover of the vehicle-mounted camera.

[0079] Optionally, the temperature difference sensor is installed on the front cover of the vehicle-mounted camera.

[0080] Optionally, the heating module has a high-power heating gear and a low-power heating gear.

[0081] It should be noted that the above-mentioned embodiment provides a vehicle-mounted camera front cover defogging system. In the defogging control of the front cover of the vehicle-mounted camera, only the above-mentioned division of each functional module is exemplified. In actual application, the above-mentioned functions can be distributed by different functional modules according to needs, that is, the internal structure of the system is divided into different functional modules to complete all or part of the functions described above. In addition, the vehicle-mounted camera front cover defogging system and the vehicle-mounted camera front cover defogging method provided by the above-mentioned embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0082] The application further discloses a computer device, which comprises:

[0083] a processor adapted to execute a computer program;

[0084] a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is executed by the processor to realize the vehicle-mounted camera front cover defogging method.

[0085] The application further discloses a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program is adapted to be loaded and executed by the processor to realize the vehicle-mounted camera front cover defogging method.

[0086] The application further discloses a computer program product, wherein the computer program product comprises a computer program, and the computer program is executed by the processor to realize the vehicle-mounted camera front cover defogging method.

[0087] The method can be directly embodied by a hardware processor or a combination of hardware and software modules in the processor. The software modules can be located in a storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, a register, or the like. The storage medium is located in a memory, and a processor reads information in the memory and combines hardware to complete the steps of the above method. To avoid repetition, no further detailed description is given here.

[0088] Those skilled in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0089] Although the specific embodiments of the present application are described above in combination with the drawings, the description is not a limitation on the scope of protection of the present application. Those skilled in the art should understand that various modifications or changes made by those skilled in the art on the basis of the technical solutions of the present application without creative labor are still within the scope of protection of the present application.

Claims

1. A method for defogging a front cover of a vehicle-mounted camera, characterized in that, include: After receiving the assisted driving activation command, the image of the cover in front of the vehicle camera is acquired; The image of the front cover of the vehicle camera is identified to determine whether there is water vapor on the front cover of the vehicle camera; When it is determined that there is no water vapor on the front cover of the vehicle camera, the driver assistance function is activated. When it is determined that there is water vapor on the front cover of the vehicle camera, the front cover of the vehicle camera is heated until there is no water vapor on the front cover of the vehicle camera, and the driver assistance function is activated. When it is determined that there is water mist on the front cover of the vehicle camera, the proportion of the water mist area in the image of the front cover of the vehicle camera is also determined. When the proportion is less than the proportion threshold, the front cover of the vehicle camera is heated with low power; when the proportion is greater than or equal to the proportion threshold, the front cover of the vehicle camera is heated with high power. After the vehicle's driver assistance function is activated, the temperature difference between the inside and outside of the vehicle is obtained; When the temperature difference between the inside and outside of the vehicle is greater than or equal to the critical temperature difference value, the front cover of the vehicle camera is heated until the temperature difference between the inside and outside of the vehicle is less than the critical temperature difference value.

2. The method for defogging a front cover of a vehicle-mounted camera as described in claim 1, characterized in that, When the temperature difference between the inside and outside of the vehicle is greater than or equal to the temperature difference threshold, the error between the temperature difference between the inside and outside of the vehicle and the temperature difference threshold is also calculated; when the error is less than the set temperature error threshold, the front cover of the vehicle camera is heated with low power; when the error is greater than or equal to the set temperature error threshold, the front cover of the vehicle camera is heated with high power.

3. A defogging system for a vehicle-mounted camera front cover, implementing the defogging method for a vehicle-mounted camera front cover as described in any one of claims 1-2, characterized in that, include: A heating module is used to heat the front cover of the vehicle camera; The image acquisition unit is used to acquire the image of the cover in front of the vehicle camera after receiving the assisted driving activation command; The image recognition unit is used to recognize the image of the front cover of the vehicle camera and determine whether there is water mist on the front cover of the vehicle camera; The control unit is used to activate the driver assistance function when it is determined that there is no water vapor on the front cover of the vehicle camera; When it is determined that there is water vapor on the front cover of the vehicle camera, the front cover of the vehicle camera is heated until there is no water vapor on the front cover of the vehicle camera, and then the driver assistance function is activated.

4. A vehicle-mounted camera front cover defogging system as described in claim 3, characterized in that, It also includes a temperature difference sensor; Temperature difference sensor, used to obtain the temperature difference value between the inside and outside of the vehicle; The control unit is also used to control the heating module to heat the front cover of the vehicle camera when the temperature difference between the inside and outside of the vehicle is greater than or equal to the temperature difference threshold after the vehicle's driver assistance function is activated, until the temperature difference between the inside and outside of the vehicle is less than the temperature difference threshold.

5. A vehicle-mounted camera front cover defogging system as described in claim 4, characterized in that, The temperature difference sensor is mounted on the front cover of the vehicle camera.

6. A vehicle-mounted camera front cover defogging system as described in claim 3, characterized in that, The heating module is installed in the transparent area of ​​the front cover of the vehicle camera.

7. A vehicle-mounted camera front cover defogging system as described in claim 3, characterized in that, The heating module has both high-power and low-power heating settings.

8. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements a method for defogging a front cover of a vehicle-mounted camera as described in any one of claims 1-2.

Images