Electronic rearview mirror and control method, vehicle, storage medium, and program product

Abstract

The present disclosure relates to an electronic rearview mirror and a control method, a vehicle, a storage medium, and a program product, and relates to the field of electronic technology. The electronic rearview mirror includes a camera device, a light-transmitting lens, and a heating module. A closed space is formed between the lens in the camera device and the light-transmitting lens, and the closed space is filled with a medium; the heating module is used to heat the medium in the closed space to remove the fog on the light-transmitting lens and / or the lens in the camera device through the heated medium. The fog on the lens and / or the light-transmitting lens in the camera device is removed by heating the medium by the heating module. Compared with the method of directly heating and defogging the lens or the light-transmitting lens in the related art, direct heating of the lens and / or the light-transmitting lens can be avoided, thereby reducing damage to the lens and / or the light-transmitting lens, while also improving the defog efficiency and preventing the lens or the light-transmitting lens from being scratched.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic technology, and in particular, to an electronic rearview mirror and a control method, a vehicle, a storage medium, and a program product. Background Art

[0002] An electronic rearview mirror is an electronic device that captures real-time images of the rear of the vehicle through a camera and displays the real-time images on an LCD screen inside the vehicle, so that the driver can observe the traffic conditions behind the vehicle. However, during the driving process, the lens or light-transmitting lens of the camera in the electronic rearview mirror may fog up, resulting in inaccurate images. In the related art, the fog on the lens or light-transmitting lens is removed by heating the lens or physically erasing the lens, but it is easy to damage the lens or light-transmitting lens. Summary of the invention

[0003] The purpose of the present disclosure is to provide an electronic rearview mirror and a control method, a vehicle, a storage medium, and a program product to solve the technical problems existing in the related technologies.

[0004] In order to achieve the above-mentioned object, in a first aspect, the present disclosure provides an electronic rearview mirror, comprising a camera device, a light-transmitting lens and a heating module, wherein a closed space is formed between a lens in the camera device and the light-transmitting lens, and a medium is filled in the closed space;

[0005] The heating module is used to heat the medium in the enclosed space, so as to remove fog on the light-transmitting lens and / or the lens in the camera device through the heated medium.

[0006] Optionally, the heating module comprises a heating resistor and a circuit board, the circuit board is arranged at a target position of the enclosed space, and the heating resistor is arranged on the circuit board;

[0007] The heating module is used to heat the medium in the enclosed space through the heating resistor.

[0008] Optionally, the medium is an inert gas medium, and the inert gas medium includes helium and argon.

[0009] Optionally, the electronic rearview mirror further comprises a control unit, a temperature sensor and / or a humidity sensor, wherein the output end of the temperature sensor is connected to the input end of the control unit, the output end of the humidity sensor is connected to the input end of the control unit, and the output end of the control unit is connected to the heating module;

[0010] The temperature sensor is used to detect the temperature value of the medium in the enclosed space and transmit the temperature value to the control unit;

[0011] The humidity sensor is used to detect the humidity value outside the light-transmitting lens and transmit the humidity value to the control unit;

[0012] The control unit is used to control the working state of the heating module according to the temperature value and / or the humidity value.

[0013] Optionally, the control unit is used to:

[0014] When the temperature value is less than the preset temperature value and the humidity value is greater than the preset humidity value, the heating module is controlled to be in a heating state, the preset temperature value is the temperature value of the electronic rearview mirror in a fog-free state, and the preset humidity value is the humidity value of the electronic rearview mirror in a fog-free state.

[0015] Optionally, the control unit is used to:

[0016] After the heating module is controlled to be in a heating state, when the temperature value is greater than the preset temperature value, and / or the humidity value is less than the preset humidity value, the heating module is controlled to be in a heating stop state.

[0017] Optionally, the humidity sensor is arranged outside the light-transmitting lens, and / or

[0018] The temperature sensor is disposed in the medium in the closed space.

[0019] Optionally, the control unit is further used for:

[0020] Acquire meteorological environment data of the environment where the electronic rearview mirror is located, and determine the preset temperature value and the preset humidity value according to the meteorological environment data.

[0021] Optionally, the control unit includes a first controller and a second controller, the input end of the first controller is respectively connected to the output end of the temperature sensor and / or the output end of the humidity sensor, the output end of the first controller is connected to the input end of the second controller, and the output end of the second controller is connected to the heating module;

[0022] The first controller is used to receive the temperature value and / or the humidity value, generate a control signal according to the temperature value and / or the humidity value, and input the control signal to the second controller;

[0023] The second controller is used to control the working state of the heating module according to the control signal.

[0024] Optionally, the heating module is arranged at a target position in the enclosed space, and the target position is a position that does not block the lens and the light-transmitting lens.

[0025] Optionally, the target position is a side wall of the enclosed space.

[0026] In a second aspect, the present disclosure provides a control method for an electronic rearview mirror, wherein the electronic rearview mirror comprises a camera device, a light-transmitting lens, and a heating module, wherein a closed space is formed between a lens of the camera device and the light-transmitting lens, and a medium is filled in the closed space, and the control method comprises:

[0027] The heating module is controlled to heat the medium in the enclosed space, so as to remove fog on the light-transmitting lens and / or the lens in the camera device through the heated medium.

[0028] In a third aspect, the present disclosure provides a vehicle, comprising any electronic rearview mirror provided in the first aspect of the present disclosure.

[0029] In a fourth aspect, the present disclosure provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method provided in the second aspect of the present disclosure.

[0030] In a fifth aspect, the present disclosure provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the method provided in the second aspect of the present disclosure.

[0031] Through the above technical solution, a medium is filled in the enclosed space formed between the lens and the light-transmitting lens of the camera device, and the fog on the lens and / or the light-transmitting lens in the camera device is removed by heating the medium through a heating module. Compared with the method of directly heating the lens or the light-transmitting lens for defogger in the related art, direct heating of the lens and / or the light-transmitting lens can be avoided, thereby reducing damage to the lens and / or the light-transmitting lens, and at the same time improving the defogger efficiency and preventing the lens and / or the light-transmitting lens from being scratched.

[0032] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0034] Figure 1 It is a schematic diagram of a vehicle-mounted camera in the first related technology.

[0035] Figure 2 It is a schematic diagram of a vehicle-mounted camera in the second related technology.

[0036] Figure 3is a schematic diagram showing an electronic rearview mirror according to an exemplary embodiment of the present disclosure.

[0037] Figure 4 is a schematic diagram showing a heating module according to an exemplary embodiment of the present disclosure.

[0038] Figure 5 The figure is a schematic diagram showing a heating module for controlling an electronic rearview mirror according to an exemplary embodiment of the present disclosure.

[0039] Figure 6 is a schematic diagram showing a method for controlling an electronic rearview mirror according to an exemplary embodiment of the present disclosure.

[0040] Figure 7 The figure is a flow chart showing a method for controlling an electronic rearview mirror according to an exemplary embodiment of the present disclosure.

[0041] Figure 8 is a block diagram of a vehicle according to an exemplary embodiment.

[0042] Description of Reference Numerals

[0043] 1. Rear housing; 2. Front housing; 3. Lens housing; 4. Lens cover; 5. Plug connector; 6. Camera lens; 7. PCB board; 8. Photosensitive chip; 10. Heating element; 11. Mounting block; 110. Lens module; 120. Heating ring; 130. Heating control module; 140. Temperature protection module; 150. Current detection auxiliary module; 160. Current limiting protection module; 301. Humidity sensor; 302. Temperature sensor; 303. Transparent lens; 304. Heating module; 305. Lens; 306 , image sensor; 307, camera interface; 308, second controller; 309, display; 310, first controller; 311, memory; 312, power supply; 401, transparent lens mounting position; 402, lens mounting position; 403, heating resistor; 404, circuit board; 800, vehicle; 810, infotainment system; 820, perception system; 830, decision control system; 840, drive system; 850, computing platform; 851, processor; 852, memory; 853, instructions. DETAILED DESCRIPTION

[0044] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0045] Based on the development and progress of related electronic imaging technology and vehicle intelligence, car rearview mirrors have also ushered in intelligent changes. At present, most electronic exterior rearview mirrors have a defogger function, which mainly uses lens heating or physical wiping to defog and defrost.

[0046] In the first related art, Figure 1 As shown, the defogging vehicle camera includes: a lens module 110; a heating ring 120, which is inserted into the lens module 110, and the heating ring 120 is used to heat the lens module 110. A heating control module 130 is electrically connected to the heating ring 120, and the heating control module 130 is used to control the output power of the heating ring 120. A temperature protection module 140 is electrically connected to the heating ring 120 and the heating control module 130, and the temperature protection module 140 is used to check the ambient temperature value of the heating ring 120, and when the ambient temperature value exceeds the preset temperature value, the heating control module 130 sends a heating interruption instruction. A current detection auxiliary module 150 is electrically connected to the heating ring 120, and the current detection auxiliary module 150 is used to detect the heating current of the heating ring 120. A current limiting protection module 160 is electrically connected to the current detection auxiliary module 150 and the heating control module 130, and when the heating current exceeds the preset current value, the heating control module 130 is subjected to current limiting control.

[0047] In the second related art, Figure 2 As shown, the front shell 2 is fixedly connected to the rear shell 1, and a PCB board 7 is fixedly installed in the front shell 2, and a photosensitive chip 8 is arranged on the PCB board 7. A plug connector 5 for electrically connecting to a vehicle body is fixedly connected to the rear shell 1. A lens shell 3 is fixedly connected to the front shell 2, and a mounting block 11 is fixedly connected to the lens shell 3. A camera lens 6 is fixedly connected in the middle of the mounting block 11, and the camera lens 6 is directly facing the photosensitive chip 8. A slidable protective lens is arranged on the mounting block 11. A lens cover body 4 is fixedly connected to the lens shell 3, and a through hole matched with the camera lens 6 is arranged on the lens cover body 4. The protective lens is in the shape of an elongated strip, and the inner side of the protective lens is connected to the camera lens 6, and the outer side of the protective lens is connected to the lens cover body 4. A driving mechanism for driving the protective lens to slide is arranged on the mounting block 11, and heating elements 10 corresponding to the protective lenses are also fixedly connected to both sides of the camera lens 6 on the mounting block 11. The defogging method includes: a heating module on the side of the camera lens 6, and a protective lens driving mechanism. The driving mechanism drives the long strip of protective lens to slide, thereby moving the fogged or frosted part, and the non-fogged or frosted part is located within the relative range of the through hole. This method has a certain degree of anti-fogging effect.

[0048] The inventor found that in the first related technology, the defogger vehicle camera heats the lens surface longitudinally, and the defrosting and defoggering efficiency is slow. Long-term heating can easily cause damage to the lens. And the defogger detection method based on image detection is prone to false triggering of the defogger heating instruction due to blurred imaging when the camera is focused. In the second related technology, since the front lens is movable, the sealing between the camera lens 6 and the light-transmitting lens is poor, which can easily cause fogging inside the camera lens 6 and make it impossible to defog; and the movable lens is prone to scratching the lens, thereby affecting the camera imaging.

[0049] In view of this, the present disclosure provides an electronic rearview mirror and a control method, a vehicle, a storage medium, and a program product to solve the technical problems existing in the above-mentioned related technologies.

[0050] like Figure 3 As shown, Figure 3 is a schematic diagram showing an electronic rearview mirror according to an exemplary embodiment of the present disclosure, with reference to Figure 3 , comprising a camera device, a light-transmitting lens 303 and a heating module 304, wherein a closed space is formed between a lens 305 in the camera device and the light-transmitting lens 303, and the closed space is filled with a medium;

[0051] The heating module 304 is used to heat the medium in the enclosed space, so as to remove fog on the light-transmitting lens 303 and / or the lens 305 in the camera device through the heated medium.

[0052] Through the above technical solution, a medium is filled in the enclosed space formed between the lens 305 and the transparent lens 303 of the camera device, and the fog on the lens 305 and / or the transparent lens 303 in the camera device is removed by heating the medium through the heating module 304. Compared with the method of directly heating and defogging the lens 305 and / or the transparent lens 303 in the related art, direct heating of the lens 305 and / or the transparent lens 303 can be avoided, thereby reducing damage to the lens 305 and / or the transparent lens 303, and at the same time, the defogging efficiency can be improved, and the lens 305 and / or the transparent lens 303 can be prevented from being scratched.

[0053] In order to enable those skilled in the art to better understand the electronic rearview mirror provided by the present invention, the above modules are described in detail with examples below.

[0054] For example, Figure 3 As shown, the camera device may include a lens 305, an image sensor 306, a camera interface 307, a first controller 310, and an in-vehicle display 309. The camera interface 307 connects the output end of the image sensor 306 to the input end of the first controller 310, and the output end of the first controller 310 is connected to the display screen.

[0055] Among them, the lens 305 can be composed of a reflector, a transmission mirror, and a prism in a certain way, and can present the light image of the observed target on the target surface of the camera device, and finally form an image on the display 309. The image sensor 306 can be a photosensitive element, and can convert the image transmitted by the lens 305 into an electrical signal according to the corresponding proportional relationship on the photosensitive surface, and transmit it to the display 309 via the first controller 310. The first controller 310 can be used to comprehensively process the reference data collected by each sensor, receive the reference data and fuse it, and can transmit data and control instructions to the camera device, the second controller 308, the memory 311 and the display 309. The camera interface 307 can be used to connect the image sensor 306 and the first controller 310. The first controller 310 can power the image sensor 306 through the camera interface 307, and the image sensor 306 can transmit the detected real-time image to the first controller 310 through the camera interface 307. The first controller 310 can also transmit other control sub-signals to the camera interface 307, and this embodiment of the present disclosure is not specifically limited. The display 309 can be placed in the vehicle or on a terminal device to display the image transmitted by the image sensor 306 so that the driver or passengers can observe the road conditions. The terminal device can be a mobile phone, a tablet, a computer, and other devices.

[0056] The light-transmitting lens 303 may be a high-definition lens, which is used to enable the camera device to collect image information of the surrounding environment through the light-transmitting lens 303, and at the same time, it can play the role of waterproofing and dustproofing and preventing overexposure for the lens 305, ensuring that the field of view of the lens 305 is clear and stable. In the electronic rearview mirror, the lens 305 of the camera device can be used to capture and focus light, and the light-transmitting lens 303 can ensure that the light passes through the lens 305 to reach the image sensor 306 as losslessly as possible. The heating module 304 can be used to heat the medium in the enclosed space. Among them, the heating module 304 can be a heating resistor 403, a heating wire and a heater, which is not specifically limited in the embodiments of the present disclosure. The electronic rearview mirror can be an electronic exterior rearview mirror, which is not specifically limited in the embodiments of the present disclosure.

[0057] Using electronic rearview mirrors to replace traditional mirror rearview mirrors and utilizing the imaging advantages of camera devices to reduce the blind spots of the rearview mirrors can improve driving safety. At the same time, after removing the traditional rearview mirrors, the windward area of ​​the vehicle can be reduced, thereby reducing wind resistance and reducing vehicle fuel and power consumption.

[0058] In this embodiment, a closed space is formed between the lens 305 of the camera device and the light-transmitting lens 303, and the closed space is filled with a medium. The medium may be a gas medium or a liquid medium, which is not specifically limited in this embodiment of the disclosure. Figure 4As shown, the filled medium is located between the lens mounting position 402 and the light-transmitting lens mounting position 401 .

[0059] Afterwards, the medium can be heated by the heating module 304, and the heated medium can be used to remove the fog on the lens 305 and / or the light-transmitting lens 303. By removing the fog on the lens 305 and / or the light-transmitting lens 303 by heating the medium by the heating module 304, a defogging effect can be achieved, and direct heating of the lens 305 and / or the light-transmitting lens 303 can be avoided, thereby reducing the damage to the lens 305 and / or the light-transmitting lens 303 and reducing the scratches on the lens 305 and / or the light-transmitting lens 303.

[0060] In a possible manner, the heating module 304 is disposed at a target position in the enclosed space, and the target position is a position that does not block the lens 305 and the light-transmitting lens 303 .

[0061] For example, the target position may be a side wall of the enclosed space or the outside of the enclosed space. When the target position is the side wall of the enclosed space, the medium in the enclosed space may be directly heated by the heating module 304. When the target position is the outside of the enclosed space, the heated medium may be input into the enclosed space by the heating module 304 to defog the lens 305 and / or the light-transmitting lens 303. Thus, by arranging the heating module 304 at the target position to heat the medium, the obstruction of the field of view of the lens 305 and / or the light-transmitting lens 303 may be avoided.

[0062] In a possible manner, the heating module 304 includes a heating resistor 403 and a circuit board 404 , and the heating resistor 403 is disposed on the circuit board 404 ;

[0063] The heating module 304 is used to heat the medium in the enclosed space through the heating resistor 403 .

[0064] It should be understood that the heating resistor 403 may be a conductor that generates heat when powered. The circuit board 404 may be an aluminum substrate, which is not specifically limited in the embodiments of the present disclosure. The aluminum substrate may be a metal-based copper-clad plate with good heat dissipation function.

[0065] like Figure 4As shown, the heating module 304 includes a heating resistor 403 and a circuit board 404, and the heating resistor 403 is arranged on the circuit board 404. The heating resistor 403 can be set to one or more. When the heating resistor 403 is set to more than one, the heating resistor 403 can be arranged in sequence on the circuit board 404. The circuit board 404 can be set at a target position in the enclosed space, thereby avoiding blocking the light of the lens 305 and the light-transmitting lens 303.

[0066] In a possible manner, the medium is an inert gas medium, and the inert gas medium includes helium and argon.

[0067] It should be understood that when the medium is a gas medium, the gas medium may be an inert gas medium. Among them, the inert gas medium may include helium and argon, which is not specifically limited in the embodiments of the present disclosure. Helium is an inert gas lighter than air, with a boiling point of -268.93°C, and has the characteristics of a lower boiling point and can be quickly heated and penetrate a small space. Argon is an inert gas heavier than air, with a boiling point of -185.85°C, and has the characteristics of a higher boiling point, and the gas can provide uniform heat distribution, so it can be used in scenes that require a larger heating area. At the same time, helium and argon also have good insulation properties, which can help prevent heat loss. That is to say, when helium and argon are filled in a confined space, the helium and argon filled in the confined space can be quickly and evenly heated by the heating module 304, thereby improving the defog rate and uniformity of the lens 305 and / or the light-transmitting lens 303.

[0068] By heating the medium through the heating module 304 to remove fog on the lens 305 and / or the transparent lens 303 in the camera device, compared with the method of directly defogging the lens 305 or the transparent lens 303 in the related art, direct heating of the lens 305 and / or the transparent lens 303 can be avoided, thereby reducing damage to the lens 305 and / or the transparent lens 303, and at the same time preventing the lens 305 and / or the transparent lens 303 from being scratched.

[0069] In a possible manner, the electronic rearview mirror further includes a control unit, a temperature sensor 302 and / or a humidity sensor 301, the output end of the temperature sensor 302 is connected to the input end of the control unit, the output end of the humidity sensor 301 is connected to the input end of the control unit, and the output end of the control unit is connected to the heating module 304;

[0070] The temperature sensor 302 is used to detect the temperature value of the medium in the enclosed space and transmit the temperature value to the control unit;

[0071] The humidity sensor 301 is used to detect the humidity value outside the light-transmitting lens 303 and transmit the humidity value to the control unit;

[0072] The control unit is used to control the working state of the heating module 304 according to the temperature value and / or the humidity value.

[0073] It should be understood that the temperature sensor 302 may be a sensor that converts a temperature variable into a transmittable standardized output signal. The humidity sensor 301 may be a sensor that converts a humidity variable into a transmittable standardized output signal. The control unit may be a device for controlling the working state of the heating module 304.

[0074] In this embodiment, the temperature value in the medium can be collected by the temperature sensor 302, and the temperature value is transmitted to the control unit. The humidity value outside the light-transmitting lens 303 is collected by the humidity sensor 301, and the humidity value is transmitted to the control unit. The control unit can control the working state of the heating module 304 according to the temperature value and / or the humidity value. For example, the control unit can control whether the heating module 304 enters the heating state according to the temperature value and the humidity value. Or the control unit can control whether the heating module 304 is in the stop heating state according to the temperature value and / or the humidity value, and this is not specifically limited in the embodiment of the present disclosure.

[0075] When the control unit controls the working state of the heating module 304 according to the temperature value and / or humidity value, the start and stop timing of the heating module 304 can be determined according to the temperature value and the humidity value, thereby improving the accuracy of controlling the working state of the heating module 304, thereby improving the defog efficiency and reducing losses.

[0076] In a possible manner, the humidity sensor 301 is disposed outside the light-transmitting lens 303, and / or

[0077] The temperature sensor 302 is disposed in the medium in the closed space.

[0078] It should be understood that when the temperature of the medium in the enclosed space is measured by the temperature sensor 302, the temperature sensor 302 can be set on the side wall in the enclosed space, and the embodiment of the present disclosure does not make specific limitations on this. When the humidity value of the environment in which the electronic rearview mirror is located is measured by the humidity sensor 301, the humidity sensor 301 can be set outside the light-transmitting lens 303, and the embodiment of the present disclosure does not make specific limitations on this.

[0079] By setting the temperature sensor 302 in a confined space to measure the temperature value of the medium in the confined space, and setting the humidity sensor 301 on the outside of the transparent lens 303 to measure the humidity value of the environment in which the electronic rearview mirror is located, the working state of the heating module 304 can be controlled according to the temperature value and / or humidity value, thereby improving the defog efficiency and reducing the loss.

[0080] In a possible embodiment, the control unit is used to:

[0081] When the temperature value is less than the preset temperature value and the humidity value is greater than the preset humidity value, the heating module 304 is controlled to be in a heating state, the preset temperature value is the temperature value of the electronic rearview mirror in a fog-free state, and the preset humidity value is the humidity value of the electronic rearview mirror in a fog-free state.

[0082] It should be understood that the preset temperature value may be a temperature value when there is no fog in the enclosed space formed between the lens 305 and the light-transmitting lens 303 in the environment where the vehicle is located. The preset humidity value may be a humidity value when there is no fog in the enclosed space formed between the lens 305 and the light-transmitting lens 303. When the temperature value is less than the preset temperature value and the humidity value is greater than the preset humidity value, it may represent that fog has formed in the enclosed space formed between the lens 305 and the light-transmitting lens 303 and that defogger is required in time. In this case, the heating module 304 may be controlled to be in a heating state, and then the medium in the enclosed space may be heated by the heating module 304, and the fog on the lens 305 and / or the light-transmitting lens 303 may be removed by the heated medium.

[0083] By setting a preset temperature value and a preset humidity value, and controlling the heating state of the heating module 304 according to the temperature value, the preset temperature value, the humidity value, and the preset humidity value, the sensitivity and accuracy of the demisting of the heating module 304 can be improved.

[0084] In a possible embodiment, the control unit is used to:

[0085] After the heating module 304 is controlled to be in the heating state, when the temperature value is greater than the preset temperature value, and / or the humidity value is less than the preset humidity value, the heating module 304 is controlled to be in the stopping heating state.

[0086] It should be understood that when the working state of the heating module 304 is the heating state, the temperature value in the medium and the humidity value outside the light-transmitting lens 303 can continue to be collected, and then the heating module 304 can be controlled to stop heating according to the temperature value and / or humidity value. For example, when the temperature value is greater than the preset temperature value, or the humidity value is less than the preset humidity value, or the temperature value is greater than the preset temperature value and the humidity value is less than the preset humidity value, the heating module 304 can be controlled to stop heating.

[0087] By continuously collecting temperature values ​​and / or humidity values, and comparing the temperature values ​​with preset temperature values, and / or comparing the humidity values ​​with preset humidity values, the heating module 304 is controlled to stop heating, so as to prevent the heating module 304 from being damaged by overheating.

[0088] In a possible embodiment, the control unit is further configured to:

[0089] Acquire meteorological environment data of the environment where the electronic rearview mirror is located, and determine the preset temperature value and the preset humidity value according to the meteorological environment data.

[0090] It should be understood that the preset temperature value and the preset humidity value can be determined based on the meteorological environment data of the environment in which the vehicle is located. For example, when the vehicle travels from place A to place B, and the meteorological environment data of places A and B are different, the preset temperature value and the preset humidity value of places A and B are also different. By determining the preset temperature value and the preset humidity value through the meteorological environment data of the environment in which the vehicle is located, the preset temperature value and the preset humidity value can be adaptively updated, and then the start and stop timing of the heating module 304 can be determined based on the preset temperature value and the preset humidity value, which can improve the accuracy of defogger, and can improve the defogger efficiency and reduce losses.

[0091] In a possible manner, the control unit includes a first controller 310 and a second controller 308, the input end of the first controller 310 is respectively connected to the output end of the temperature sensor 302 and / or the output end of the humidity sensor 301, the output end of the first controller 310 is connected to the input end of the second controller 308, and the output end of the second controller 308 is connected to the heating module 304;

[0092] The first controller 310 is used to receive the temperature value and / or the humidity value, generate a control signal according to the temperature value and / or the humidity value, and input the control signal to the second controller 308;

[0093] The second controller 308 is used to control the working state of the heating module 304 according to the control signal.

[0094] It should be understood that the second controller 308 may be a heating controller, which may be used to receive a control signal sent by the first controller 310, and then control the working state of the heating module 304 according to the control signal. For example, when the temperature value exceeds a preset temperature value, the heating module 304 is controlled to stop heating, so as to achieve over-temperature protection.

[0095] The control signal may be a defog command, a stop heating command, or the like. After receiving the control signal, the second controller 308 may control the working state of the heating module 304 according to the control signal. Figure 5 As shown, when the first controller 310 determines that the temperature value is less than the preset temperature value and the humidity value is greater than the preset humidity value, the generated control signal may be a defog command, and the defog command is sent to the second controller 308. After receiving the defog command, the second controller 308 controls the heating module 304 to enter the heating state, thereby defogging the lens 305 and / or the light-transmitting lens 303 through the heating medium. When the first controller 310 determines that the temperature value is greater than the preset temperature value, and / or the humidity value is less than the preset humidity value, the generated control signal may be a stop heating command, and the stop heating command is sent to the second controller 308. After receiving the stop heating command, the second controller 308 may control the heating module 304 to stop heating state, thereby achieving over-temperature protection.

[0096] like Figure 3 As shown, the electronic rearview mirror further includes a power supply 312 and a memory 311, and the output end of the power supply 312 can be connected to the first controller 310, the memory 311, the display 309 and the second controller 308 of the electronic rearview mirror, and is used to supply power to the first controller 310, the memory 311, the display 309 and the second controller 308. The memory 311 can be used to store the data of each sensor received by the first controller 310 and the data information displayed on the display 309.

[0097] Based on the same concept, this embodiment also discloses a control method of an electronic rearview mirror, wherein the electronic rearview mirror comprises a camera device, a light-transmitting lens 303 and a heating module 304, wherein a closed space is formed between the lens 305 of the camera device and the light-transmitting lens 303, and the closed space is filled with a medium. Figure 6 As shown, Figure 6 is a schematic diagram showing a control method of an electronic rearview mirror according to an exemplary embodiment of the present disclosure, with reference to Figure 6 , the control method comprises:

[0098] S601: Control the heating module 304 to heat the medium in the enclosed space, so as to remove fog on the light-transmitting lens 303 and / or the lens 305 in the camera device through the heated medium.

[0099] For example, when controlling the heating module 304 to heat the medium in the enclosed space, the control may be performed by the control unit, which is not specifically limited in the embodiments of the present disclosure.

[0100] Optionally, the control method further includes:

[0101] Detect the humidity value outside the light-transmitting lens 303 and / or the temperature value of the medium in the enclosed space.

[0102] The working state of the heating module 304 is controlled according to the temperature value and / or the humidity value.

[0103] Optionally, according to the temperature value and the humidity value, the working state of the heating module 304 is controlled, including:

[0104] When the temperature value is less than the preset temperature value and the humidity value is greater than the preset humidity value, the heating module 304 is controlled to be in a heating state. The preset temperature value is the temperature value of the electronic rearview mirror in a fog-free state, and the preset humidity value is the humidity value of the electronic rearview mirror in a fog-free state.

[0105] Optionally, controlling the working state of the heating module 304 according to the temperature value and / or the humidity value includes:

[0106] After the heating module 304 is controlled to be in the heating state, when the temperature value is greater than the preset temperature value, and / or the humidity value is less than the preset humidity value, the heating module 304 is controlled to be in the stopping heating state.

[0107] The control method further comprises:

[0108] Acquiring meteorological environment data of the environment where the electronic rearview mirror is located;

[0109] The preset temperature value and the preset humidity value are determined according to the meteorological environment data.

[0110] Reference Figure 7 , Figure 7 FIG. 1 is a flow chart showing a method for controlling an electronic rearview mirror according to an exemplary embodiment of the present disclosure. Figure 7 As shown, the process of the control method of the electronic rearview mirror includes the following steps.

[0111] S701 : The vehicle is started, and the electronic rearview mirror can obtain the temperature value in the enclosed space through the temperature sensor 302 , and obtain the humidity value outside the light-transmitting lens 303 through the humidity sensor 301 .

[0112] S702: Generate a preset temperature value and a preset humidity value according to current meteorological environment data through the first controller 310.

[0113] S703: The first controller 310 fuses the temperature value, the preset temperature value, the humidity value and the preset humidity value, and generates a control signal for a defogger command when the temperature value is lower than the preset temperature value and the humidity value is greater than the preset humidity value.

[0114] S704: After receiving the control signal, the heating controller controls the current to be input into the heating module 304, so that the heating module 304 enters a heating state, and then the medium in the closed space between the camera lens 305 and / or the light-transmitting lens 303 is heated by the heating module 304, so as to achieve defogging of the lens 305 and the light-transmitting lens 303;

[0115] S705: When the heating module 304 continues to heat, the temperature sensor 302 continues to collect temperature values, and the humidity sensor 301 continues to collect humidity values. When the temperature value is greater than the preset temperature value, and / or the humidity value is less than the preset humidity value, the first controller 310 generates a control signal for stopping the heating instruction. After receiving the control signal, the heating controller controls the heating module 304 to stop heating to prevent damage to the heating device due to overheating.

[0116] The specific implementation methods of the above-mentioned process steps have been described in detail above and will not be repeated here. In addition, it should be understood that for the above-mentioned method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present disclosure is not limited to the order of actions described above. Secondly, those skilled in the art should also know that the embodiments described above belong to preferred embodiments, and the steps involved are not necessarily required by the present disclosure.

[0117] Through the above technical solution, a medium is filled in the closed space formed by the lens 305 and the light-transmitting lens 303 of the camera device, and the mist on the lens 305 and / or the light-transmitting lens 303 of the camera device is removed by heating the medium by the heating module 304. Compared with the method of directly heating and defogging the lens 305 or the light-transmitting lens 303 in the related art, direct heating of the lens 305 and / or the light-transmitting lens 303 can be avoided, thereby reducing damage to the lens 305 and / or the light-transmitting lens 303, and at the same time, the defogging efficiency can be improved, and the lens 305 and / or the light-transmitting lens 303 can be prevented from being scratched. At the same time, by controlling the heating of the heating module 304 by comparing the temperature value with the preset temperature value and the humidity value with the preset humidity value, the sensitivity and accuracy of the heating module 304 in removing the mist on the lens 305 and / or the light-transmitting lens 303 can be improved.

[0118] Based on the same concept, this embodiment also discloses a vehicle, including the electronic rearview mirror disclosed in this embodiment.

[0119] Figure 8800 is a block diagram of a vehicle 800 according to an exemplary embodiment. For example, the vehicle 800 may be a hybrid vehicle, a non-hybrid vehicle, an electric vehicle, a fuel cell vehicle, or other types of vehicles. The vehicle 800 may be an autonomous vehicle or a semi-autonomous vehicle.

[0120] Reference Figure 8 , the vehicle 800 may include various subsystems, for example, an infotainment system 810, a perception system 820, a decision control system 830, a drive system 840, and a computing platform 850. The vehicle 800 may also include more or fewer subsystems, and each subsystem may include multiple components. In addition, each subsystem and each component of the vehicle 800 may be interconnected by wire or wireless means.

[0121] In some embodiments, the infotainment system 810 may include a communication system, an entertainment system, and a navigation system, etc.

[0122] The perception system 820 may include several sensors for sensing information about the environment around the vehicle 800. For example, the perception system 820 may include a global positioning system (the global positioning system may be a GPS system, or a Beidou system or other positioning systems), an inertial measurement unit (IMU), a laser radar, a millimeter wave radar, an ultrasonic radar, and a camera.

[0123] The decision control system 830 may include a computing system, a vehicle controller, a steering system, a throttle, and a braking system.

[0124] The drive system 840 may include components that provide powered motion for the vehicle 800. In one embodiment, the drive system 840 may include an engine, an energy source, a transmission system, and wheels. The engine may be one or a combination of an internal combustion engine, an electric motor, and an air compression engine. The engine is capable of converting energy provided by the energy source into mechanical energy.

[0125] Some or all functions of the vehicle 800 are controlled by a computing platform 850. The computing platform 850 may include at least one processor 851 and a memory 852, and the processor 851 may execute instructions 853 stored in the memory 852.

[0126] The processor 851 may be any conventional processor, such as a commercially available CPU. The processor may also include a graphics processor (Graphic Process Unit, GPU), a field programmable gate array (Field Programmable Gate Array, FPGA), a system on chip (System on Chip, SOC), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC) or a combination thereof.

[0127] The memory 852 may be implemented by any type of volatile or nonvolatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0128] In addition to instructions 853 , memory 852 may also store data, such as road maps, route information, vehicle location, direction, speed, etc. The data stored in memory 852 may be used by computing platform 850 .

[0129] In the embodiment of the present disclosure, the processor 851 can execute instruction 853 to complete all or part of the steps of the above-mentioned method for controlling the electronic rearview mirror.

[0130] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the control method of the electronic rearview mirror described above are implemented. For example, the computer-readable storage medium can be the memory 852 including the program instructions, and the program instructions can be executed by the processor 851 of the vehicle 800 to complete the control method of the electronic rearview mirror described above. In another exemplary embodiment, a computer program product is also provided, which includes a computer program that can be executed by a programmable device, and the computer program has a code portion for executing the control method of the electronic rearview mirror described above when executed by the programmable device.

[0131] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0132] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0133] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An electronic rearview mirror, characterized in that: The device comprises a camera device, a light-transmitting lens (303), a heating module (304), a control unit, a temperature sensor (302) and / or a humidity sensor (301), wherein the output end of the temperature sensor (302) is connected to the input end of the control unit, the output end of the humidity sensor (301) is connected to the input end of the control unit, the output end of the control unit is connected to the heating module (304), and a closed space is formed between a lens (305) in the camera device and the light-transmitting lens (303), and the closed space is filled with a medium; The heating module (304) is used to uniformly heat the medium in the enclosed space, so as to remove fog on the light-transmitting lens (303) and / or the lens (305) in the camera device through the heated medium; The medium is an inert gas medium, and the inert gas medium includes helium and argon; The temperature sensor (302) is used to detect the temperature value of the medium in the closed space and transmit the temperature value to the control unit; The humidity sensor (301) is used to detect the humidity value outside the light-transmitting lens (303) and transmit the humidity value to the control unit; The control unit is used to control the heating module (304) to be in a heating state when the temperature value is less than a preset temperature value and the humidity value is greater than a preset humidity value, and after controlling the heating module (304) to be in a heating state, when the temperature value is greater than the preset temperature value and / or the humidity value is less than the preset humidity value, control the heating module (304) to stop heating, wherein the preset temperature value is the temperature value of the electronic rearview mirror in a non-fog state, and the preset humidity value is the humidity value of the electronic rearview mirror in a non-fog state.

2. The electronic rearview mirror according to claim 1, characterized in that: The heating module (304) comprises a heating resistor (403) and a circuit board (404), and the heating resistor (403) is arranged on the circuit board (404); The heating module (304) is used to heat the medium in the closed space through the heating resistor (403).

3. The electronic rearview mirror according to claim 1, characterized in that: The humidity sensor (301) is arranged outside the light-transmitting lens (303), and / or The temperature sensor (302) is arranged in the medium in the closed space.

4. The electronic rearview mirror according to claim 1, characterized in that: The control unit is also used for: Acquire meteorological environment data of the environment where the electronic rearview mirror is located, and determine the preset temperature value and the preset humidity value according to the meteorological environment data.

5. The electronic rearview mirror according to claim 1, characterized in that: The control unit comprises a first controller (310) and a second controller (308), the input end of the first controller (310) being respectively connected to the output end of the temperature sensor (302) and / or the output end of the humidity sensor (301), the output end of the first controller (310) being connected to the input end of the second controller (308), and the output end of the second controller (308) being connected to the heating module (304); The first controller (310) is used to receive the temperature value and / or the humidity value, generate a control signal according to the temperature value and / or the humidity value, and input the control signal to the second controller (308); The second controller (308) is used to control the working state of the heating module (304) according to the control signal.

6. The electronic rearview mirror according to claim 1, characterized in that: The heating module (304) is arranged at a target position in the enclosed space, and the target position is a position that does not block the lens (305) and the light-transmitting lens (303).

7. The electronic rearview mirror according to claim 6, characterized in that: The target position is a side wall of the enclosed space.

8. A method for controlling an electronic rearview mirror, characterized in that: The electronic rearview mirror comprises a camera device, a light-transmitting lens (303), a heating module (304), a control unit, a temperature sensor (302) and / or a humidity sensor (301), wherein the output end of the temperature sensor (302) is connected to the input end of the control unit, the output end of the humidity sensor (301) is connected to the input end of the control unit, the output end of the control unit is connected to the heating module (304), a closed space is formed between the lens (305) of the camera device and the light-transmitting lens (303), and the closed space is filled with a medium, wherein the medium is an inert gas medium, and the inert gas medium comprises helium and argon. The control method comprises: Controlling the heating module (304) to uniformly heat the medium in the enclosed space, so as to remove fog on the light-transmitting lens (303) and / or the lens (305) in the camera device through the heated medium; Detecting the humidity value outside the light-transmitting lens (303) by means of the humidity sensor (301), and / or detecting the temperature value of the medium in the enclosed space by means of the temperature sensor (302); When the temperature value is less than a preset temperature value, and the humidity value is greater than a preset humidity value, the heating module (304) is controlled to be in a heating state. After the heating module (304) is controlled to be in a heating state, when the temperature value is greater than the preset temperature value, and / or the humidity value is less than the preset humidity value, the heating module (304) is controlled to stop heating. The preset temperature value is the temperature value of the electronic rearview mirror in a non-fog state, and the preset humidity value is the humidity value of the electronic rearview mirror in a non-fog state.

9. A vehicle, characterized in that: The electronic rearview mirror comprises the electronic rearview mirror as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to claim 8 are implemented.

11. A computer program product, characterized in that The invention comprises a computer program which, when executed by a processor, implements the steps of the method according to claim 8.

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