Vehicle rearview mirror device, control method and vehicle

Abstract

The embodiment of the invention discloses a vehicle rearview mirror device, a control method and a vehicle. The vehicle rearview mirror device comprises an EC mirror module, a CMS module and a control module, and the EC mirror module and the CMS module are in signal connection with the control module. The EC mirror module comprises an EC mirror and a programmable power supply assembly for supplying power to the EC mirror; the EC mirror module further comprises a heating assembly. The heating assembly is used for detecting the temperature of the EC mirror and heating the EC mirror. The CMS module is used for capturing and displaying an image behind the side of the vehicle in real time; and the control module is used for obtaining quality data of the image based on the image captured by the CMS module, and controlling the programmable power supply assembly to change the output voltage so as to reduce the transmittance of the EC mirror when judging that the quality data of the image does not meet a preset requirement, so that the EC mirror reflects the image behind the side of the vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of automobile components, and in particular to a vehicle rearview mirror device, a control method and a vehicle. Background Art

[0002] With the continuous development of automobile technology, electronic rearview mirrors (CMS-camera monitoring system), as a new type of driving assistance equipment, tend to gradually replace traditional optical rearview mirrors because of their low wind resistance, wider field of view and ability to adapt to different driving scenarios.

[0003] The current mainstream electronic rearview mirror uses an external camera in the place of the original optical rearview mirror, and a display screen is placed inside the cockpit to display the rear image in real time. The whole relies on the electronic rearview mirror to realize video acquisition and display. However, there is a potential risk of failure of the electronic rearview mirror. If the camera itself fails, it will immediately lead to the loss of the rear view function, seriously affecting driving safety. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a vehicle rearview mirror device, a control method and a vehicle to solve the problem that the current electronic rearview mirror has a risk of failure, and when it fails, the vehicle loses the rear view function, which seriously affects driving safety.

[0005] In a first aspect, the present application provides a vehicle rearview mirror device, comprising: an EC mirror module, a CMS module and a control module, wherein the EC mirror module and the CMS module are respectively connected to the control module by signal;

[0006] The EC mirror module includes an EC mirror and a programmable power supply component for powering the EC mirror;

[0007] The EC mirror module further includes a heating component, which is used to detect the temperature of the EC mirror and heat the EC mirror; the CMS module is used to capture and display the image of the side and rear of the vehicle in real time;

[0008] The control module is used to obtain the image quality captured by the CMS module, and when it is determined that the image quality transmitted by the CMS module does not meet the preset requirements, control the programmable power supply component to change the output voltage to reduce the transmittance of the EC mirror, so as to reflect the image of the rear side of the vehicle when the CMS module fails.

[0009] The vehicle rearview mirror device provided by the present application has a CMS module that captures and displays images from the side and rear of the vehicle in real time. When the image quality captured by the CMS module is poor, the control module reduces the transmittance and increases the reflectivity of the EC mirror by changing the output voltage of the programmable power supply component, thereby making the EC mirror a rearview mirror, thereby avoiding the problem that the vehicle loses its rear view function when the CMS module fails, which seriously affects driving safety.

[0010] In some embodiments, the control module obtains image quality data based on the image captured by the CMS module, including:

[0011] Obtaining peak signal-to-noise ratio, mean square error and signal-to-noise ratio of an image based on the image captured by the CMS module;

[0012] The quality data of the image is obtained based on the peak signal-to-noise ratio, mean square error and signal-to-noise ratio of the image.

[0013] In some embodiments, the heating assembly includes a temperature sensor and a heating element;

[0014] The temperature sensor is installed on the surface of the EC mirror, the heating element is installed in the EC mirror, and both the temperature sensor and the heating element are connected to the control module signal;

[0015] The temperature sensor is configured to: detect the mirror surface temperature of the EC mirror in real time to obtain temperature signal data, and transmit the temperature signal data to the control module;

[0016] The heating element is configured to be controlled by the control module to adjust the heating temperature.

[0017] A temperature sensor is set on the EC mirror surface to monitor the mirror temperature of the EC mirror in real time. The control module adjusts the heating of the EC mirror according to the mirror temperature of the EC mirror. This can prevent frost or water mist on the EC mirror surface from affecting the line of sight in cold and humid environments, so that the EC mirror surface serving as a rearview mirror always remains clear.

[0018] In some embodiments, the EC mirror module further comprises a light detection component disposed on the surface of the EC mirror, the light detection component comprises at least one light sensor, and the at least one light sensor is signal-connected to the control module;

[0019] The light sensor is configured to: monitor the light outside the vehicle in real time to obtain light signal data, and transmit the light signal data to the control module so that the control module can adjust the output voltage of the programmable power supply component according to the light signal data.

[0020] By setting a light sensor on the surface of the EC mirror to detect the light outside the vehicle to obtain light signal data, the control module adjusts the transmittance of the EC mirror according to the light signal data. It can adjust the reflectivity of the EC mirror when there is strong light around the vehicle when driving at night, avoiding the image transmitted by the CMS module from being affected by strong light and causing visual interference to the driver, thereby improving driving safety.

[0021] In some embodiments, the CMS module includes at least two cameras and at least one display screen, wherein the at least two cameras are distributed on both sides of the vehicle, and the display screen is disposed inside the vehicle;

[0022] The camera is configured to capture an image of the rear side of the vehicle, and the display screen is configured to display the image of the rear side of the vehicle captured by the camera.

[0023] The camera captures images of the side and rear of the vehicle, which are processed by the control module and transmitted to the vehicle display screen in real time for display. It has a wider field of view and can adapt to different driving scenarios.

[0024] In some embodiments, the EC mirror is installed within the shooting field of view of the camera.

[0025] The EC mirror is installed within the camera's field of view and can reflect and display the rear view of the vehicle captured by the original camera when the camera fails.

[0026] In some embodiments, the device further comprises a hollow mounting base, wherein the mounting base is mounted on a side of the vehicle;

[0027] The camera is installed in the mounting base, the EC mirror is installed at the end of the mounting base and the camera is arranged toward the EC mirror;

[0028] The control module and the programmable power supply assembly are both installed inside the vehicle;

[0029] The control module is connected to the heating component and the camera respectively through a first circuit, and the programmable power supply component is connected to the EC mirror through a second circuit. The first circuit and the second circuit are both arranged in the installation base.

[0030] The control module and the programmable power supply assembly are installed in the vehicle, and the camera and the EC mirror are installed in a mounting base on the outside of the vehicle. This can prevent the redundant and large components outside the vehicle from affecting the normal driving state of the vehicle, and it is safer to set the programmable power supply assembly and the control module in the vehicle.

[0031] In some embodiments, the control module includes a first control component and a second control component;

[0032] The first control component is signal-connected to the CMS module, the second control component is signal-connected to the programmable power component, and the first control component is signal-connected to the second control component;

[0033] The first control component is configured to: receive the vehicle side rear image captured by the CMS module, and determine whether the quality data of the image meets the preset requirements; the second control component is configured to: obtain the judgment result of the first control component on the vehicle side rear image, and adjust the power output voltage of the programmable power supply component when the quality data of the image does not meet the preset requirements.

[0034] The CMS module and EC mirror module are controlled by different control components respectively. The redundant safety design can improve the safety of the overall device and avoid the failure of the CMS module and EC mirror module at the same time.

[0035] In a second aspect, the present application provides a vehicle rearview mirror control method, which is applied to a vehicle rearview mirror device, wherein the vehicle rearview mirror device includes an EC mirror module and a CMS module, wherein: the EC mirror module includes an EC mirror and a programmable power supply component for powering the EC mirror; the CMS module includes at least two cameras, characterized in that the method includes:

[0036] Obtaining a rear side image of the vehicle captured by an external camera of the vehicle;

[0037] Obtaining image quality data based on the image transmitted by the CMS module;

[0038] Determining whether the quality data of the image meets preset requirements;

[0039] If not, the programmable power supply component is controlled to change the output voltage to reduce the transmittance of the EC mirror, so that the EC mirror reflects the image behind the side of the vehicle. In a third aspect, the present application provides a vehicle, comprising a vehicle rearview mirror device as described in any one of the first aspects.

[0040] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The disclosure of the present application will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. In addition, similar numbers in the drawings are used to represent similar components, among which:

[0042] Figure 1 is a schematic diagram of the structure of a vehicle rearview mirror device provided in an embodiment of the present application;

[0043] Figure 2 is a schematic diagram of the overall structure of the vehicle rearview mirror device provided in an embodiment of the present application;

[0044] Figure 3 is a schematic diagram of the structural decomposition of a vehicle rearview mirror device provided in an embodiment of the present application;

[0045] Figure 4 is a schematic diagram of an assembly method of a vehicle rearview mirror device provided in an embodiment of the present application;

[0046] Figure 5 is a three-dimensional diagram of a vehicle rearview mirror device provided in an embodiment of the present application;

[0047] Figure 6 yes Figure 5 A cross-sectional view taken along AA;

[0048] Figure 7 It is a flow chart of the vehicle control method provided in an embodiment of the present application.

[0049] Among them: 1. EC mirror; 2. Programmable power supply component; 3. Transparent glass component; 4. Camera; 5. Display screen; 6. Mounting base; 7. First circuit; 8. Second circuit; 9. First control component; 10. Second control component. DETAILED DESCRIPTION

[0050] Some embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0051] As described in the background technology, currently, automobiles are gradually adopting external electronic rearview mirrors to replace traditional rearview mirrors as driving assistance equipment. External electronic rearview mirrors are widely promoted because of their low wind resistance, wider field of view and ability to adapt to different driving scenarios. However, electronic equipment components have potential failure risks. If the camera itself fails, it will immediately lead to the loss of the rear view function, seriously affecting driving safety.

[0052] The CMS module is an electronic rearview mirror, a camera-monitor system, referred to as CMS, which consists of a camera and a display screen.

[0053] EC mirror is an electrochromic mirror. EC mirror can change its reflectivity in an instant by controlling the circuit voltage. In order to solve the above problems, the present application creatively proposes a vehicle rearview mirror device, a control method and a vehicle, wherein an EC mirror module is connected to the outside of the CMS module, and the EC mirror module is enabled when the control module detects a CMS module failure, and the output voltage of the programmable power supply component in the EC mirror module is changed to reduce the transmittance of the EC mirror in the EC mirror module, so as to reflect the image of the side and rear of the vehicle when the CMS module fails.

[0054] The present application will be described in detail below through specific embodiments.

[0055] Specifically, the embodiment of the present application provides a vehicle rearview mirror device, referring to Figure 1 and Figure 2 As shown, an EC mirror module, a CMS module and a control module, wherein the EC mirror module and the CMS module are respectively connected to the control module by signal;

[0056] The EC mirror module includes an EC mirror 1 and a programmable power supply component 2 for powering the EC mirror 1; the EC mirror module also includes a heating component, which is used to detect the temperature of the EC mirror 1 and heat the EC mirror 1; the CMS module is used to capture and display the image of the side and rear of the vehicle in real time;

[0057] The control module is used to obtain image quality data based on the image captured by the CMS module, and when it is determined that the image quality data does not meet the preset requirements, control the programmable power supply component to change the output voltage to reduce the transmittance of the EC mirror 1, so that the EC mirror reflects the image of the rear side of the vehicle.

[0058] Transmittance refers to the transmittance of light. EC mirror 1, or electrochromic mirror, is a mirror with five thin film layers sandwiched between two substrates, namely a transparent conductive layer, an electrochromic layer, an electrolyte layer, an ion storage layer, and another transparent conductive layer. Its working principle is that a voltage is applied to the electrodes at both ends of the electrochromic layer element. Under the action of the electric field of the applied voltage, ions migrate into (or out of) the electrochromic layer, causing the valence of the electrochromic material to decrease (or increase). Before reaching equilibrium, the electrochromic material changes color; after reaching equilibrium, the color change of the electrochromic material reaches stability, and it has the characteristics of changing reflectivity and transmittance according to voltage or current. The voltage at both ends can be controlled to achieve a change in transmittance from nearly 0.5% to 99% (reflectivity is the opposite). When the electronic exterior rearview mirror, i.e., the CMS module, works normally, the EC mirror 1 is in a high transmittance state. When the electronic exterior rearview mirror is abnormal, the control module detects a CMS module failure and changes the voltage of the EC mirror 1, thereby changing the transmittance of the EC mirror 1, so that the EC mirror 1 changes from high transmittance to nearly 0 transmittance, thereby maximizing the reflectivity of the EC mirror 1, so that the EC mirror can reflect the image. For example: after the voltage is changed, the electrochromic layer of the EC mirror 1 changes from a transmittance of 99% to a transmittance of nearly 0, and from a transparent state to an opaque state, and is combined with the transparent conductive layer on the surface of the EC mirror to form an optical rearview mirror.

[0059] The size of the EC mirror 1 in the EC mirror module is not specifically limited in this application, depending on the specific application scenario of the vehicle, the available space of the vehicle, the design requirements, and the installation position of the EC mirror 1. For example only, taking common compact and mid-sized passenger cars as an example, the lens area of ​​the EC mirror is about 50 to 80 square centimeters. They can usually provide a horizontal field of view of about 100° to 150°, and a vertical field of view of about 70° to 90°. This range can support the side and rear field of view required by most drivers during normal travel, and meet the driver's temporary observation needs for side and rear traffic conditions without the support of the CMS module.

[0060] The vehicle rearview mirror device provided by the present application has a CMS module that captures and displays images from the side and rear of the vehicle in real time. When the CMS module fails, the control module enables the EC mirror module, and changes the reflectivity of the EC mirror 1 by changing the transmittance of the EC mirror, thereby making the EC mirror 1 a rearview mirror, thereby avoiding the problem that the vehicle loses its rear view function when the CMS module fails, which seriously affects driving safety.

[0061] In some embodiments, the control module obtains image quality data based on the image captured by the CMS module, including:

[0062] Obtaining peak signal-to-noise ratio, mean square error and signal-to-noise ratio of an image based on the image captured by the CMS module;

[0063] The quality data of the image is obtained based on the peak signal-to-noise ratio, mean square error and signal-to-noise ratio of the image.

[0064] In some embodiments, reference Figure 2 As shown, the EC mirror module further includes a transparent glass member 3 , which is bonded to the mirror surface of the EC mirror 1 and is located on the side of the EC mirror to which the driver's line of sight is directed.

[0065] Since the transmittance of the EC mirror 1 can change from 0.5% to 99% with the change of the voltage at both ends, but does not reach 0 transmittance, the transparent glass piece 3 is attached to the front side of the EC mirror 1 to further improve the reflection effect of the EC mirror 1. The transparent glass piece 3 is attached to the mirror surface of the EC mirror 1, and the combination with the EC mirror 1 with nearly 0 transmittance can form an optical rearview mirror with better reflection effect.

[0066] The transparent glass piece 3 can be a transparent glass sheet or a transparent glass block or any other shape, as long as it can be combined with the EC mirror 1 to act as a rearview mirror when the transmittance of the EC mirror 1 decreases. The present application does not impose any specific limitation on this.

[0067] In some embodiments, the heating assembly includes a temperature sensor and a heating element (not shown);

[0068] The temperature sensor is installed on the mirror surface of the EC mirror 1, and the heating element is installed in the EC mirror 1. Both the temperature sensor and the heating element are connected to the control module signal; the temperature sensor can be set between the EC mirror 1 and the transparent glass piece 3, on the surface of the EC mirror 1 facing the transparent glass piece 3, or on the surface of the transparent glass piece 3 away from the EC mirror 1. In addition, the temperature sensor can be transparent or opaque. When the temperature sensor is opaque, the temperature sensor is set at the edge of the EC mirror 1 or the transparent glass piece 3.

[0069] The temperature sensor is configured to: detect the mirror surface temperature of the EC mirror 1 in real time to obtain temperature signal data, and transmit the temperature signal data to the control module;

[0070] The heating element is configured to adjust the heating temperature under the control of the control module. Specifically, when the control module determines that the current temperature is less than the first preset temperature value based on the temperature signal data transmitted by the received temperature sensor, the heating element is started to heat to the second preset temperature value. The first preset temperature value can be a temperature value set according to actual needs, for example, a temperature that makes the mirror surface easily condense water mist or frost, thereby causing the rearview mirror device to be unable to clearly display an image.

[0071] The EC mirror 1 is a multi-layer structure, and the heating element is arranged between the structural layers of the EC mirror 1. By arranging a temperature sensor on the surface of the EC mirror 1 to monitor the surface temperature of the EC mirror 1 in real time, the control module adjusts and heats the EC mirror 1 according to the surface temperature of the EC mirror 1, which can prevent the frost or water mist on the surface of the EC mirror 1 from affecting the vision in a cold and humid environment, so that the surface of the EC mirror 1, which acts as a rearview mirror, always remains clear.

[0072] In some embodiments, the EC mirror module further comprises a light detection component (not shown) disposed on the mirror surface of the EC mirror 1, the light detection component comprises at least one light sensor, and the at least one light sensor is signal-connected to the control module;

[0073] The light sensor is configured to: monitor the light outside the vehicle in real time to obtain light signal data, and transmit the light signal data to the control module so that the control module can adjust the output voltage of the programmable power supply component according to the light signal data. The light sensor can be a photodiode, a photoresistor or other component that can sensitively sense light energy and convert light energy into electrical signals. The light sensor can be transparent or opaque. When the light sensor is transparent, there is no limit on the specific position of the light sensor on the EC mirror surface. When the light sensor is opaque, the light sensor is set at the edge of the EC mirror surface.

[0074] By setting a light sensor on the surface of the EC mirror 1 to detect the light outside the vehicle to obtain light signal data, the control module adjusts the reflectivity of the EC mirror 1 according to the light signal data. The reflectivity of the EC mirror 1 can be adjusted when strong light appears around the vehicle at night, so as to avoid the image transmitted by the CMS module being affected by the strong light and causing visual interference to the driver, thereby improving driving safety. The light sensor can be set between the EC mirror 1 and the transparent glass piece 3, or it can be set on the surface of the transparent glass piece 3 away from the EC mirror 1. In addition, the light sensor can be transparent or opaque. When the light sensor is opaque, the light sensor is set at the edge of the EC mirror 1 or the transparent glass piece 3.

[0075] In some embodiments, reference Figure 2 As shown, the CMS module includes at least two cameras 4 and at least one display screen 5, wherein the at least two cameras 4 are distributed on both sides of the vehicle, and the display screen 5 is arranged inside the vehicle;

[0076] The camera 4 is configured to capture an image of the rear side of the vehicle, and the display screen 5 is configured to display the image of the rear side of the vehicle captured by the camera 4 .

[0077] The camera 4 captures the image of the rear side of the vehicle, which is processed by the control module and transmitted to the vehicle display screen 5 for display in real time. It has a wider field of view and can adapt to different driving scenarios.

[0078] In addition, the camera 4 can also be arranged at the rearview mirror inside the vehicle, and the EC mirror module is connected and fixed to the side of the camera 4.

[0079] In some embodiments, the EC mirror 1 is installed within the shooting field of view of the camera 4 .

[0080] The EC mirror 1 is installed in the shooting field of view of the camera 4, and can reflect and display the rear view of the vehicle originally shot by the camera 4 when the camera 4 fails.

[0081] In some embodiments, reference Figures 3 to 6 As shown, the device further comprises a hollow mounting base 6, and the mounting base 6 is mounted on the side of the vehicle; the rear side is the position of the trunk of the vehicle, and the front side is the position of the headlight of the vehicle, and one mounting base 6 is respectively arranged on the left and right sides of the vehicle;

[0082] The camera 4 is installed in the mounting base 6, the EC mirror 1 is installed at the end of the mounting base 6 and the camera 4 is arranged toward the EC mirror 1; the display surface of the EC mirror is the front surface, the surface opposite to the front surface is the back surface, and the shooting end of the camera 4 is arranged toward the back surface of the EC mirror;

[0083] The transparent glass piece 3 is mounted on the end of the mounting base 6, and the transparent glass piece 3 is in contact with the mirror surface of the EC mirror 1 away from the camera 4;

[0084] The control module and the programmable power supply assembly 2 are both installed inside the vehicle;

[0085] The control module is connected to the heating component and the camera 4 respectively through the first line 7, and the programmable power supply component 2 is connected to the EC mirror 1 through the second line 8 to power the EC mirror 1, and the first line 7 and the second line 8 are both arranged in the mounting base 6.

[0086] The control module and the programmable power supply assembly 2 are installed in the vehicle, and the camera 4, the EC mirror 1, and the transparent glass component 3 are installed in the mounting base 6 on the outside of the vehicle. This can prevent the components outside the vehicle from being too complicated and large and affecting the normal driving state of the vehicle, and it is safer to set the programmable power supply assembly 2 and the control module in the vehicle.

[0087] In some embodiments, reference Figure 2 As shown, the control module includes a first control component 9 and a second control component 10;

[0088] The first control component 9 is signal-connected to the CMS module, the second control component 10 is signal-connected to the programmable power supply component 2, and the first control component 9 is signal-connected to the second control component 10;

[0089] The first control component 9 is configured to: receive the vehicle side rear image captured by the CMS module, and determine whether the quality data of the image meets the preset requirements;

[0090] The second control component 10 is configured to: obtain the judgment result of the first control component 9 on the side rear image of the vehicle, and adjust the power output voltage of the programmable power supply component 2 when the quality data of the image does not meet the preset requirements.

[0091] The first control component and the second control component can be any unit module with control function such as CPU, MCU, etc. Exemplarily, the second control component is an MCU control module.

[0092] Regarding the specific setting position of the first control component, it can be independently set inside or outside the vehicle, or it can be integrated in the CMS module, or it can be integrated in an independently set control module together with the second control component. The specific setting position of the second control component can be independently set inside or outside the vehicle, or it can be integrated in the EC mirror module, or it can be integrated in an independently set control module together with the first control component. Exemplarily, the first control component is integrated in the CMS module, and the second control component is integrated in the EC mirror module, and they are specifically set in the mounting base 6, and the spatial layout is more compact. Preferably, the first control component and the second control component are both set in the vehicle to avoid environmental damage in bad weather that affects the service life.

[0093] The CMS module and EC mirror module are controlled by different control components respectively. The redundant safety design can improve the safety of the overall device and avoid the failure of the CMS module and EC mirror module at the same time.

[0094] The present application also provides a vehicle rearview mirror control method, which is applied to the vehicle rearview mirror device provided in any one of the above embodiments, and the method includes:

[0095] S1. Obtain a rear side image of a vehicle captured by an external camera of the vehicle.

[0096] S2. Obtain image quality data based on the image captured by the CMS module.

[0097] S3: Determine whether the image quality data meets the preset requirements. If not, proceed to S4.

[0098] S4, controlling the programmable power supply component to change the output voltage to reduce the transmittance of the EC mirror, so that the EC mirror reflects the image of the rear side of the vehicle.

[0099] In some embodiments, the method further comprises:

[0100] Obtaining peak signal-to-noise ratio, mean square error and signal-to-noise ratio of an image based on the image captured by the CMS module;

[0101] The quality data of the image is obtained based on the peak signal-to-noise ratio, mean square error and signal-to-noise ratio of the image.

[0102] In some embodiments, the method further comprises:

[0103] The temperature signal data transmitted by the temperature sensor installed on the EC mirror is obtained to determine whether the temperature signal data is within a first preset range. If so, the heating element in the EC mirror is adjusted to increase the temperature to heat the EC mirror.

[0104] In some embodiments, the method further comprises:

[0105] The optical signal data transmitted by the optical sensor outside the vehicle is obtained to determine whether the optical signal data is within a second preset range. If so, the transmittance of the EC mirror is adjusted to increase to prevent the driver from dizziness caused by excessive reflection of light from the EC mirror.

[0106] An embodiment of the present application also provides a vehicle, which includes the vehicle rearview mirror device provided by any one of the above embodiments.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0108] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0109] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A vehicle rearview mirror device, characterized in that: include: EC mirror module, CMS module and control module, wherein the EC mirror module and the CMS module are respectively connected to the control module by signal; The EC mirror module includes an EC mirror and a programmable power supply component for powering the EC mirror; the EC mirror module also includes a heating component, the heating component is used to detect the temperature of the EC mirror and heat the EC mirror; the CMS module is used to capture and display the image of the side and rear of the vehicle in real time; The control module is used to obtain image quality data based on the image captured by the CMS module, and when it is determined that the image quality data does not meet preset requirements, control the programmable power supply component to change the output voltage to reduce the transmittance of the EC mirror, so that the EC mirror reflects the image of the rear side of the vehicle.

2. The vehicle rearview mirror device according to claim 1, characterized in that: The control module obtains image quality data based on the image captured by the CMS module, including: Obtaining peak signal-to-noise ratio, mean square error and signal-to-noise ratio of an image based on the image captured by the CMS module; The quality data of the image is obtained based on the peak signal-to-noise ratio, mean square error and signal-to-noise ratio of the image.

3. The vehicle rearview mirror device according to claim 1, characterized in that: The heating assembly includes a temperature sensor and a heating element; The temperature sensor is installed on the surface of the EC mirror, the heating element is installed in the EC mirror, and both the temperature sensor and the heating element are connected to the control module signal; The temperature sensor is configured to: detect the mirror surface temperature of the EC mirror in real time to obtain temperature signal data, and transmit the temperature signal data to the control module; The heating element is configured to be controlled by the control module to adjust the heating temperature.

4. The vehicle rearview mirror device according to claim 1, characterized in that: The EC mirror module further comprises a light detection component disposed on the surface of the EC mirror, wherein the light detection component comprises at least one light sensor, and the at least one light sensor is connected to the control module by signal; The light sensor is configured to: monitor the light outside the vehicle in real time to obtain light signal data, and transmit the light signal data to the control module so that the control module can adjust the output voltage of the programmable power supply component according to the light signal data.

5. The vehicle rearview mirror device according to claim 1, characterized in that: The CMS module includes at least two cameras and at least one display screen, wherein the at least two cameras are distributed on both sides of the vehicle, and the display screen is arranged inside the vehicle; The camera is configured to capture an image of the rear side of the vehicle, and the display screen is configured to display the image of the rear side of the vehicle captured by the camera.

6. The vehicle rearview mirror device according to claim 5, characterized in that: The EC mirror is installed in the shooting field of view of the camera.

7. The vehicle rearview mirror device according to claim 5, characterized in that: The device also includes a hollow mounting base, which is mounted on the side of the vehicle; The camera is installed in the mounting base, the EC mirror is installed at the end of the mounting base and the camera is arranged toward the EC mirror; the control module and the programmable power supply component are both installed inside the vehicle; The control module is connected to the heating component and the camera respectively through a first circuit, and the programmable power supply component is connected to the EC mirror through a second circuit. The first circuit and the second circuit are both arranged in the installation base.

8. The vehicle rearview mirror device according to any one of claims 1 to 7, characterized in that: The control module includes a first control component and a second control component; The first control component is signal-connected to the CMS module, the second control component is signal-connected to the programmable power component, and the first control component is signal-connected to the second control component; The first control component is configured to: receive an image of the rear side of the vehicle captured by the CMS module, and determine whether the quality data of the image meets the preset requirements; The second control component is configured to: obtain the judgment result of the first control component on the side rear image of the vehicle, and adjust the power output voltage of the programmable power supply component when the quality data of the image does not meet the preset requirements.

9. A vehicle rearview mirror control method, applied to a vehicle rearview mirror device, the vehicle rearview mirror device comprising an EC mirror module and a CMS module, wherein: The EC mirror module includes an EC mirror and a programmable power supply component for powering the EC mirror; The CMS module includes at least two cameras, and the method includes: Obtaining a rear side image of the vehicle captured by an external camera of the vehicle; Obtaining image quality data based on the image captured by the CMS module; Determining whether the quality data of the image meets preset requirements; If not, the programmable power supply component is controlled to change the output voltage to reduce the transmittance of the EC mirror, so that the EC mirror reflects the image of the rear side of the vehicle.

10. A vehicle, characterized in that: The vehicle comprises the vehicle rearview mirror device according to any one of claims 1-8.

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