Inner rear-view mirror integrated with monitoring system

Abstract

The utility model discloses an inside rear-view mirror integrated with a monitoring system, which belongs to the technical field of inside rear-view mirrors, and is characterized by comprising a shell and a lens, a camera module is arranged in the shell, the camera module is positioned behind the lens, the camera module comprises a DMS camera and an OMS camera, and the DMS camera and the OMS camera are arranged in the shell. The DMS camera and the OMS camera respectively collect images of a driver and passengers in the vehicle through the lenses; the automobile interior rearview mirror has the advantages that the camera module is integrated in the interior rearview mirror, so that a hole is prevented from being formed in an interior trim, the structure in an automobile does not need to be damaged, and meanwhile, the shooting angle is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of interior rearview mirrors, and more specifically to an interior rearview mirror with an integrated monitoring system. Background Art

[0002] DMS (Driver Monitor System) is a driver monitoring system that ensures that the driver remains alert during driving by monitoring the driver's posture, eyes, facial expressions, etc.; OMS (Occupant Monitoring System) is an occupant monitoring system that is mainly used to monitor passenger behavior, ensure the driver's safe driving, and prevent people from being left behind in the vehicle.

[0003] At present, most mainstream car companies' products on the market are equipped with DMS / OMS. DMS / OMS has become an important safety technology. However, the layout location of DMS / OMS cameras on mainstream models is basically located on the A-pillar or the ceiling directly above the driver, which has damaged the consistency of the entire vehicle interior. At the same time, the above two methods will also weaken the strength of the A-pillar or the upper sheet metal through openings, affecting driving safety. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an interior rearview mirror with an integrated monitoring system, which has the advantages of using a hidden camera to avoid opening holes in the interior and destroying the interior structure of the vehicle, while also providing a wider shooting angle.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An interior rearview mirror with an integrated monitoring system comprises a shell and a lens. A camera module is arranged in the shell and located behind the lens. The camera module comprises DMS and OMS cameras. The DMS and OMS cameras respectively collect images of a driver and passengers in a vehicle through the lens.

[0007] The utility model is further configured as follows: the lens is an EC lens, a control module is arranged in the housing, and the control module applies voltage to the lens to switch between a high-brightness mode and a dark anti-glare mode.

[0008] The utility model is further configured as follows: the camera module has an AGC function, the camera module communicates the lens status with the control unit in real time, and when the lens is in a dark anti-glare mode, the camera module turns on the AGC function to improve the imaging effects of RGB images and IR images.

[0009] The utility model is further configured as follows: a CCD sensor, a CMOS sensor and a BSI sensor are arranged in the camera module; when the AGC function of the camera module is turned on, the signals output by the CCD sensor, the CMOS sensor and the BSI sensor are amplified, thereby improving the imaging effects of the RGB image and the IR image.

[0010] The utility model is further configured as follows: RGB and IR inks are added to the ITO layer of the lens to improve the transmittance of visible light and the transmittance of infrared light in the high-brightness mode.

[0011] The utility model is further configured as follows: at least two layers of anti-reflection films are arranged on the lens.

[0012] The utility model is further configured as follows: a photosensitive sensor is arranged on the control module, a monitoring hole is opened on the shell, and the photosensitive sensor monitors changes in external light intensity through the monitoring hole.

[0013] The utility model is further configured as follows: the DMS and OMS cameras both use wide-angle lenses.

[0014] Compared with the prior art, the utility model has at least the following advantages:

[0015] 1. The camera module is placed behind the lens. The camera can collect images of the driver and passengers in the car through the lens. The camera module is integrated inside the rearview mirror to avoid opening holes in the interior and causing inconsistent interior decoration. There is no need to destroy the structure inside the car, which improves driving safety. At the same time, the shooting angle is wider and it is easier to capture the passengers clearly.

[0016] 2. The camera module is equipped with the AGC function. When the lens changes brightness, it can make adaptive adjustments to keep the captured image clear under different reflectivity conditions of the lens.

[0017] 3. By optimizing the lens coating and adding anti-reflection film, the light transmittance of the lens is improved to meet the camera imaging quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of this embodiment;

[0019] Figure 2 is an exploded schematic diagram of this embodiment;

[0020] Figure 3 It is a schematic diagram showing the back side of the housing.

[0021] Description of reference numerals:

[0022] 1. Shell; 2. Lens; 3. Camera module; 4. Control module; 5. Monitoring hole; 6. Heat dissipation hole. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] An interior rearview mirror with an integrated monitoring system, such as Figure 1 and Figure 2 As shown, it includes a shell 1 and a lens 2. The lens 2 is installed on the front side of the shell 1. A camera module 3 is arranged in the shell 1. The camera module 3 is located behind the lens 2. The camera module 3 includes DMS and OMS cameras. The DMS and OMS cameras respectively collect images of the driver and passengers in the car through the lens 2.

[0025] The lens 2 is specifically an EC lens, i.e., an electrochromic lens, which is composed of two parallel conductive glasses with a certain gap and an electrochromic material filled in the gap. A control module 4 is arranged in the shell 1. The control module 4 applies voltage to the lens 2, so that the electrochromic material undergoes electrochemical action to change color, thereby switching between a high-brightness mode and a dark anti-glare mode. When the rear vehicle turns on the high beam to illuminate the rearview mirror, the driver can have a good driving vision even in a glare environment, thereby increasing driving safety. The camera module 3 and the control module 4 are both fixed to the inside of the shell 1 with a number of screws.

[0026] The camera module 3 has an AGC function, i.e., an automatic gain control function. The camera module 3 and the control module 4 are connected by a wire through the communication port to communicate the status of the lens 2 in real time. When the lens 2 is in a dark anti-glare mode, the camera module 3 receives the anti-glare signal and turns on the AGC function to improve the imaging effects of the RGB image and the IR image.

[0027] The camera module 3 is provided with a CCD sensor, a CMOS sensor and a BSI sensor. When the AGC function of the camera module 3 is turned on, the signals output by the CCD sensor, the CMOS sensor and the BSI sensor are amplified, thereby improving the imaging effects of the RGB image and the IR image.

[0028] In this embodiment, the film layer of lens 2 is optimized and designed, and RGB and IR inks are added to the ITO layer of lens 2 to improve the transmittance of visible light and infrared light in high-brightness mode, so that the transmittance of visible light with a wavelength of 400nm-700nm in high-brightness mode reaches more than 35%, and the transmittance of infrared light with a wavelength of 940nm reaches more than 70%.

[0029] At the same time, in order to solve the problem of low transmittance of lens 2 in dark anti-glare mode, two or more layers of anti-reflection films are provided on lens 2 to increase the transmittance of 400nm-700nm wavelength to more than 35% and the transmittance of infrared light 940nm wavelength to more than 70% in dark anti-glare mode, thereby meeting the imaging quality of the camera in dark anti-glare mode of lens 2.

[0030] like Figure 2 and Figure 3 As shown, a photosensor is provided on the control module 4, a monitoring hole 5 is opened on the shell 1, and the photosensor is aligned to the monitoring hole 5. The photosensor monitors the change of external light intensity through the monitoring hole 5. The control module 4 can adjust the state of the lens 2 according to the external light intensity, and also communicate with the camera module 3 in real time to notify the camera module 3 of the state of the lens 2.

[0031] The monitoring hole 5 is opened on the back of the shell 1. Since the back of the shell 1 faces the front windshield, the photosensor can monitor the ambient light outside the vehicle. The back of the shell 1 is also provided with a heat dissipation hole 6 for dissipating heat from the electronic components in the shell 1.

[0032] In order to meet the legal field of view requirements and full coverage of vehicle occupant identification, the DMS and OMS cameras in the camera module 3 of this embodiment both use wide-angle lenses. At the same time, the interior rearview mirror itself has a certain angle adjustment function. In view of the left / right drive situation in different regions, by adjusting the FOV angle of the camera module 3 arranged in the interior rearview mirror and the driver's seat field of view verification, it is compatible with left / right drive vehicles, meets the needs of different vehicle models, and ensures that all occupants in the vehicle can be identified.

[0033] The working process of the utility model is as follows:

[0034] The DMS and OMS cameras in the camera module 3 collect images of the driver and passengers in the vehicle through the lens 2. The control module 4 adjusts the state of the lens 2 according to the change in light intensity. At the same time, the camera module 3 and the control module 4 communicate the state of the lens 2 in real time. The camera module 3 can turn on the AGC function according to the state of the lens 2 to improve the imaging effects of the RGB image and the IR image in the dark anti-glare mode.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. An interior rearview mirror with an integrated monitoring system, comprising a housing (1) and a lens (2), characterized in that: A camera module (3) is arranged in the housing (1), and the camera module (3) is located behind the lens (2). The camera module (3) comprises a DMS camera and an OMS camera, and the DMS camera and the OMS camera respectively collect images of the driver and passengers in the vehicle through the lens (2).

2. The interior rearview mirror with integrated monitoring system according to claim 1, characterized in that: The lens (2) is an EC lens, and a control module (4) is arranged in the housing (1). The control module (4) applies voltage to the lens (2) to switch it between a high-brightness mode and a dark anti-glare mode.

3. The interior rearview mirror with integrated monitoring system according to claim 2, characterized in that: The camera module (3) has an AGC function, and the camera module (3) communicates with the control unit in real time about the state of the lens (2). When the lens (2) is in a dark anti-glare mode, the camera module (3) turns on the AGC function to improve the imaging effects of RGB images and IR images.

4. The interior rearview mirror with integrated monitoring system according to claim 3, characterized in that: The camera module (3) is provided with a CCD sensor, a CMOS sensor and a BSI sensor. When the AGC function of the camera module (3) is turned on, the signals output by the CCD sensor, the CMOS sensor and the BSI sensor are amplified, thereby improving the imaging effects of the RGB image and the IR image.

5. The interior rearview mirror with integrated monitoring system according to claim 2, characterized in that: The ITO layer of the lens (2) is added with RGB and IR inks, so as to improve the transmittance of visible light and infrared light in high brightness mode.

6. The interior rearview mirror with integrated monitoring system according to claim 1, characterized in that: At least two layers of anti-reflection films are arranged on the lens (2).

7. The interior rearview mirror with integrated monitoring system according to claim 2, characterized in that: The control module (4) is provided with a photosensitive sensor, the housing (1) is provided with a monitoring hole (5), and the photosensitive sensor monitors changes in external light intensity through the monitoring hole (5).

8. The interior rearview mirror with integrated monitoring system according to claim 1, characterized in that: Both the DMS and OMS cameras use wide-angle lenses.

Images