Image processing display circuit for vehicle-mounted streaming media rearview mirror

Abstract

The utility model provides an image processing display circuit for a vehicle-mounted streaming media rearview mirror, which comprises a power supply, a data control circuit, a vehicle-mounted motion circuit and a display screen circuit, the power supply is connected with the input end of the data control circuit, and the output end of the data control circuit is connected with the input end of the display screen circuit. The output end of the vehicle-mounted motion circuit is connected with the input end of the display screen circuit, a multi-axis motion sensor chip U9 is arranged in the vehicle-mounted motion circuit, and the multi-axis motion sensor chip U9 can send detected vehicle multi-axis coordinate change signals to the data control circuit. And the data control circuit can carry out picture compensation according to the vehicle multi-axis coordinate change signal. The beneficial effects of the utility model are that the multi-axis motion sensor chip U9 carries out real-time detection, and when the shake of a vehicle exceeds the maximum range, ghost image compensation processing is not carried out, so that the problem of display errors is avoided, and the use requirements of users and the competitiveness of products are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle-mounted product technical field, concretely relates to an image processing display circuit for vehicle-mounted streaming media rearview mirror. BACKGROUND

[0002] With the development of the automobile industry, streaming media rearview mirrors (including interior rearview mirrors and exterior rearview mirrors) are playing an increasingly important role. Compared with traditional rearview mirrors, streaming media rearview mirrors can directly capture the image of the rear of the vehicle through a camera, providing a wider field of view and a more intuitive image. This greatly reduces the visual blind area. At night, the strong night vision capability of the streaming media camera can play a huge role, allowing the driver to clearly observe the traffic situation behind the vehicle at night. Moreover, the streaming media exterior rearview mirror can reduce wind resistance and wind noise, improve aerodynamic performance, and also improve fuel economy.

[0003] In the vehicle-mounted camera system of the streaming media rearview mirror, ghosting is a common optical phenomenon usually caused by internal reflection and scattering of the lens. When the camera captures a high-intensity point light source (such as the headlights of an oncoming vehicle or streetlights), it may produce unrealistic ghosting or virtual images in the image. These virtual images are commonly referred to as "ghosting".

[0004] To solve the problem of ghosting affecting image information, exposure parameters or dynamic range can be adjusted to effectively reduce the generation of ghosting when the vehicle-mounted camera processes high-intensity point light sources. For example, the patent "Control method and device for vehicle-mounted camera and vehicle-mounted image capture system" (application number 201910244126.6) discloses a control method and device for a vehicle-mounted camera and a vehicle-mounted image capture system. The method includes obtaining the light intensity when multiple cameras arranged at different positions of the vehicle capture images; determining the illumination difference between the light intensities of any two cameras; and in response to the illumination difference exceeding a predetermined threshold, outputting a control signal to control at least the camera with a high light intensity to adjust the image acquisition parameters to capture images. The invention also provides a control device and an image capture system to implement the above control method. According to the invention, images containing dark details can be captured in backlight environments, thereby improving driving safety and ensuring accurate display of image information.

[0005] Although the existing scheme can adjust the correct picture information by adjusting the shutter speed, ISO sensitivity, aperture and other parameters, reduce the influence of ghost image on the image, but due to the use of the scene on the car, the vehicle will shake during operation, when a large shake occurs, the vehicle image processing system will still calculate and compensate the ghost image of the picture, and display the compensated picture on the display screen, but due to the large shake, the compensation error is large, and even the picture information is displayed incorrectly, which cannot meet the user's use requirement, and is not conducive to improving the product's competitiveness. Practical new type content

[0006] In order to solve the problems in the prior art, the utility model provides an image processing display circuit for vehicle-mounted streaming media rearview mirror.

[0007] The utility model discloses an image processing display circuit for vehicle-mounted streaming media rearview mirror, including power supply, data control circuit, vehicle-mounted motion circuit and display screen circuit, and the input of power supply is connected with data control circuit, and the input of display screen circuit is connected with the output of data control circuit, and the input of display screen circuit is connected with the output of vehicle-mounted motion circuit, and the multi -axis motion sensor chip U9 is arranged in vehicle-mounted motion circuit, and multi -axis motion sensor chip U9 can send the vehicle multi -axis coordinate change signal detected to data control circuit, and data control circuit can according to whether vehicle multi -axis coordinate change signal carries out picture compensation.

[0008] The utility model makes further improvement, and data control circuit includes data control chip U1, is provided with power access pin, camera information connection pin, display screen connection pin and vehicle-mounted sensing connection pin on data control chip U1, and power supply is connected with power access pin, and camera information connection pin is used for connecting vehicle-mounted camera, and display screen circuit is connected with display screen connection pin, and multi -axis motion sensor chip U9 is connected with vehicle-mounted sensing connection pin.

[0009] The utility model makes further improvement, and is provided with sensing data pin, sensing ground pin and power supply pin on multi -axis motion sensor chip U9, sensing data pin is connected with vehicle-mounted sensing connection pin, sensing ground pin is grounded, and power supply pin is connected with constant voltage power supply VCC.

[0010] The utility model makes further improvement, and is also provided with clock interface pin on data control chip U1, and data control chip U1 can obtain time information through clock interface pin.

[0011] The utility model discloses further improve still including video receiving circuit, and video receiving circuit can carry out data conversion to the information of vehicle -mounted camera transmission, and video receiving circuit includes the demodulation chip U5 and is provided with configuration interface output pin, camera feedback output pin, data output pin and data access pin, and data control chip U1 is also provided with configuration interface input pin and camera feedback input pin, and configuration interface output pin is connected with configuration interface input pin, and camera feedback output pin is connected with camera feedback input pin, and data output pin is connected with camera information connection pin, and data access pin is connected with vehicle -mounted camera.

[0012] The utility model discloses further improve still including power control circuit, and power control circuit includes power control chip U10, and power control chip U10 is provided with 4 pins, and the 3rd pin of power control chip U10 is connected with power supply, and the 2nd pin of power control chip U10 is connected with power access pin.

[0013] The utility model discloses further improve still including vehicle -mounted bus circuit, and data control chip U1 is provided with vehicle -mounted bus connection pin, and vehicle -mounted bus circuit includes vehicle -mounted bus conversion chip U8, and vehicle -mounted bus conversion chip U8 is provided with vehicle -mounted bus output pin and vehicle -mounted bus input pin, and vehicle -mounted bus input pin is connected with vehicle -mounted bus, and vehicle -mounted bus output pin is connected with vehicle -mounted bus connection pin.

[0014] The utility model discloses further improve, and data control chip U1 is also provided with sensor multiplexing output pin, and data control chip U1 can transmit the vehicle multi -axis coordinate change signal received to other circuit use.

[0015] Compared with the prior art, the utility model discloses the beneficial effects are: adopt this scheme, can effectively solve the existing vehicle -mounted streaming media rear -view mirror, when the vehicle appears larger swing, there is ghost image image compensation error, even the problem of picture information display error, through using this technical scheme, the setting of multi -axis motion sensor chip U9 can effectively improve the accuracy of vehicle -mounted streaming media rear -view mirror display picture, and multi -axis motion sensor chip U9 detects in real time, and continuously sends vehicle multi -axis coordinate change signal to data control circuit, and data control circuit compares the vehicle multi -axis coordinate change signal obtained with the maximum shaking range coordinate of predetermining, when the vehicle shakes more than the maximum range, judges that the current vehicle exists larger jolt and shakes, and the image information sent to the vehicle camera is not handled with ghost image compensation, so that the image information photographed by the vehicle camera is directly displayed on the vehicle-mounted streaming media rear-view mirror, avoids the problem of big image error or picture information display error in data control circuit compensation, improves the use demand of user and the competitiveness of product. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the scheme of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0017] Figure 1 The principle block diagram of the image processing display circuit of the vehicle-mounted streaming media rearview mirror of the present application;

[0018] Figure 2 The circuit diagram of the image processing display circuit of the vehicle-mounted streaming media rearview mirror of the present application. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the specification, claims and above-described drawing of the present application The terms "include" and "have" and any variations thereof in the description and "first", "second" and the like in the specification and claims are intended to cover non-exclusive inclusion. The specification and claims of the present application or the above-described drawing The terms "first", "second" and the like in the description are used to distinguish different objects, not to describe a specific order.

[0020] In the present application, "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it independent or alternative to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments.

[0021] In order to enable those skilled in the art to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings.

[0022] As Figure 1 and Figure 2The utility model discloses a kind of image processing display circuit for vehicle-mounted streaming media rearview mirror, including power supply, data control circuit, vehicle-mounted motion circuit and display screen circuit, the input end of power supply is connected with data control circuit, the input end of display screen circuit is connected with the output end of data control circuit, the input end of display screen circuit is connected with the output end of vehicle-mounted motion circuit, multi-axis motion sensor chip U9 is provided in vehicle-mounted motion circuit, multi-axis motion sensor chip U9 can send the vehicle multi-axis coordinate change signal detected to data control circuit, data control circuit can according to whether vehicle multi-axis coordinate change signal is carried out picture compensation.

[0023] Through the setting of multi-axis motion sensor chip U9, the accuracy of vehicle-mounted streaming media rearview mirror display picture can be effectively improved, multi-axis motion sensor chip U9 detects in real time, continuously sends vehicle multi-axis coordinate change signal to data control circuit, data control circuit compares vehicle multi-axis coordinate change signal obtained with preset maximum jitter range coordinate, when vehicle shaking exceeds maximum range, it is judged that current vehicle exists large bump and jitter, image information sent by vehicle-mounted camera is not processed by ghost image compensation, so that image information photographed by vehicle-mounted camera is directly displayed on vehicle-mounted streaming media rearview mirror, avoid the problem that image error is large or picture information display error occurs in data control circuit compensation, improve the use demand of user and the competitiveness of product.

[0024] Data control circuit includes data control chip U1, power access pin, camera information connection pin, display screen connection pin and vehicle-mounted sensing connection pin are provided on data control chip U1, power supply is connected with power access pin, camera information connection pin is used to connect vehicle-mounted camera, display screen circuit is connected with display screen connection pin, multi-axis motion sensor chip U9 is connected with vehicle-mounted sensing connection pin.

[0025] Through the setting of data control chip U1, each data information can be accessed for operation processing, and picture information generated by vehicle-mounted camera is processed by ghost image compensation.

[0026] The model of data control chip U1 is XCAU15P.

[0027] Sensing data pin, sensing ground pin and power supply pin are provided on multi-axis motion sensor chip U9, sensing data pin is connected with vehicle-mounted sensing connection pin, sensing ground pin is grounded, power supply pin is connected with constant voltage power supply VCC.

[0028] Through multi-axis motion sensor chip U9, vehicle multi-axis coordinate change signal is transmitted to data control chip U1 efficiently.

[0029] The multi-axis motion sensor chip U9 is a chip in a three-axis vehicle motion sensor. The model of the multi-axis motion sensor chip U9 is BMI323 of Bosch.

[0030] The multi-axis motion sensor chip U9 is provided with 14 pins. The sensing data pins are the 4th, 9th, 1st and 14th pins of the multi-axis motion sensor chip U9. The sensing ground pins are the 7th and 6th pins of the multi-axis motion sensor chip U9. The power supply pins are the 8th and 5th pins of the multi-axis motion sensor chip U9. The vehicle sensing connection pins are the V22, W22, V20 and AA20 pins of the data control chip U1.

[0031] The data control chip U1 is also provided with a clock interface pin. The data control chip U1 can obtain time information through the clock interface pin.

[0032] Through the setting of the clock interface pin, a clock source can be connected, and the power supply is connected to the data control chip U1 to form a global clock control. The power supply connected to the data control chip U1 is an auxiliary power supply ACC. When the auxiliary power supply ACC is pulled low (the car is turned off), the clock source controls the ghost image compensation module in the data control chip U1 to stop working, achieving energy saving effect.

[0033] The clock interface pin is the L20 pin of the data control chip U1.

[0034] The image processing and display circuit for the vehicle-mounted streaming rearview mirror further includes a video receiving circuit. The video receiving circuit can convert the information sent by the vehicle-mounted camera into data. The video receiving circuit includes the demodulation chip U5 provided with a configuration interface output pin, a camera feedback output pin, a data output pin and a data access pin. The data control chip U1 is further provided with a configuration interface input pin and a camera feedback input pin. The configuration interface output pin is connected to the configuration interface input pin. The camera feedback output pin is connected to the camera feedback input pin. The data output pin is connected to the camera information connection pin. The data access pin is connected to the vehicle-mounted camera.

[0035] Through the video receiving circuit, the video signal obtained by the vehicle-mounted camera can be deserialized into a signal that can be received by the data control chip U1, such as MIPI or LVDS, etc.

[0036] The model of the demodulation chip U5 is MAX96752, 56 pins are arranged on the demodulation chip U5, the configuration interface output pin is specifically the 8th pin of the demodulation chip U5, the camera feedback output pin is specifically the 9th pin of the demodulation chip U5, the data output pin is specifically the 34th-39th pin of the demodulation chip U5, the data access pin is specifically the 21st pin and the 22nd pin of the demodulation chip U5, the configuration interface input pin is specifically the J22 pin of the data control chip U1, the camera feedback input pin is specifically the J21 pin of the data control chip U1, and the camera information connection pin is specifically the F17, G17, H17, H16, J16 and K16 pins of the data control chip U1.

[0037] The vehicle-mounted camera is provided with a camera chip U7.

[0038] The image processing and display circuit for the vehicle-mounted streaming rearview mirror further comprises a power supply control circuit, the power supply control circuit comprises a power supply control chip U10, 4 pins are arranged on the power supply control chip U10, the 3rd pin of the power supply control chip U10 is connected with the power supply, and the 2nd pin of the power supply control chip U10 is connected with the power supply access pin.

[0039] The model of the power supply control chip U10 is LM1117S, and the power supply access pin is specifically the R18 pin of the data control chip U1.

[0040] The image processing and display circuit for the vehicle-mounted streaming rearview mirror further comprises a vehicle-mounted bus circuit, the data control chip U1 is provided with a vehicle-mounted bus connection pin, the vehicle-mounted bus circuit comprises a vehicle-mounted bus conversion chip U8, the vehicle-mounted bus conversion chip U8 is provided with a vehicle-mounted bus output pin and a vehicle-mounted bus input pin, the vehicle-mounted bus input pin is connected with the vehicle-mounted bus, and the vehicle-mounted bus output pin is connected with the vehicle-mounted bus connection pin.

[0041] The model of the vehicle-mounted bus conversion chip U8 is ATA6562, 8 pins are arranged on the vehicle-mounted bus conversion chip U8, the vehicle-mounted bus input pin is specifically the 7th pin and the 6th pin of the vehicle-mounted bus conversion chip U8, the vehicle-mounted bus output pin is specifically the 1st pin and the 4th pin of the vehicle-mounted bus conversion chip U8, and the vehicle-mounted bus connection pin is specifically the W16 pin and the Y16 pin of the data control chip U1.

[0042] The data control chip U1 is further provided with a sensor multiplexing output pin, the sensor multiplexing output pin is specifically the AA21, AA22, AB20 and AB21 pins of the data control chip U1, the number of the sensor multiplexing output pin is same as that of a data interface output by different vehicle-mounted motion sensors, and the data control chip U1 can transmit a received vehicle multi-axis coordinate change signal to other circuits for use.

[0043] The sensor multiplexing output pin can realize effective expansion, and facilitates the application of other circuits to the vehicle multi-axis coordinate change signal.

[0044] The display screen circuit comprises a display screen driving chip U6, 12 pins are arranged on the display screen driving chip U6, the second pin and the third pin on the display screen driving chip U6 are used for controlling in cooperation with a clock source, the second pin and the third pin on the display screen driving chip U6 are connected with the U14 pin and the U15 pin of the data control chip U1 respectively, the fourth to eleventh pins on the display screen driving chip U6 are used for receiving video image data and are connected with the T15, U15, U17, V17, T17, T18, U18 and U19 pins of the data control chip U1 respectively, and the twelfth pin and the thirteenth pin on the display screen driving chip U6 are used for realizing transmission of a display screen backlight control signal and are connected with the AA13 pin and the AB13 pin of the data control chip U1 respectively.

[0045] In conclusion, the image processing display circuit for the vehicle-mounted streaming media rearview mirror can effectively solve the problem that the existing vehicle-mounted streaming media rearview mirror has a large ghost image compensation error when the vehicle shakes greatly, and even has a display error of picture information, the multi-axis motion sensor chip U9 can effectively improve the accuracy of the display picture of the vehicle-mounted streaming media rearview mirror, the multi-axis motion sensor chip U9 detects in real time and continuously sends the vehicle multi-axis coordinate change signal to the data control circuit, the data control circuit compares the obtained vehicle multi-axis coordinate change signal with the preset maximum shaking range coordinate, when the vehicle shakes beyond the maximum range, it is judged that the current vehicle has large bumping and shaking, and the image information sent by the vehicle-mounted camera is not subjected to ghost image compensation processing, so that the image information captured by the vehicle-mounted camera is directly displayed on the vehicle-mounted streaming media rearview mirror, avoiding the problem that the data control circuit compensation has a large image error or a display error of picture information, and improving the use demand of users and the competitiveness of products.

[0046] The above specific embodiments are preferred embodiments of the utility model, and the specific implementation range of the utility model is not limited by the above specific embodiments, the range of the utility model includes but is not limited to the above specific embodiments, and equivalent changes made according to the utility model are within the protection range of the utility model.

Claims

1. An image processing display circuit for a streaming rearview mirror, for displaying a picture taken by a vehicle camera on a streaming rearview mirror, characterized in that: Including power supply, data control circuit, vehicle motion circuit and display screen circuit, the power supply is connected with the input end of the data control circuit, the output end of the data control circuit is connected with the input end of the display screen circuit, the output end of the vehicle motion circuit is connected with the input end of the display screen circuit, the multi-axis motion sensor chip U9 is arranged in the vehicle motion circuit, the multi-axis motion sensor chip U9 can send the detected vehicle multi-axis coordinate change signal to the data control circuit, and the data control circuit can carry out picture compensation according to whether the vehicle multi-axis coordinate change signal is carried out.

2. The image processing display circuit for a streaming rearview mirror for vehicles according to claim 1, characterized in that: The data control circuit includes a data control chip U1, the data control chip U1 is provided with a power supply access pin, a camera information connection pin, a display screen connection pin and a vehicle sensing connection pin, the power supply is connected with the power supply access pin, the camera information connection pin is used for connecting a vehicle camera, the display screen circuit is connected with the display screen connection pin, and the multi-axis motion sensor chip U9 is connected with the vehicle sensing connection pin.

3. The image processing display circuit for a streaming rearview mirror for vehicles according to claim 2, characterized in that: The multi-axis motion sensor chip U9 is provided with a sensing data pin, a sensing ground pin and a power supply pin, the sensing data pin is connected with the vehicle sensing connection pin, the sensing ground pin is grounded, and the power supply pin is connected with a constant voltage power supply VCC.

4. The image processing display circuit for a streaming rearview mirror for vehicles according to claim 2, characterized in that: The data control chip U1 is also provided with a clock interface pin, and the data control chip U1 can obtain time information through the clock interface pin.

5. The image processing display circuit for a streaming rearview mirror for vehicles of claim 2, wherein: It also includes a video receiving circuit, which can convert the information sent by the vehicle camera into data, and the video receiving circuit includes a demodulation chip U5 provided with a configuration interface output pin, a camera feedback output pin, a data output pin and a data access pin, the data control chip U1 is also provided with a configuration interface input pin and a camera feedback input pin, the configuration interface output pin is connected with the configuration interface input pin, the camera feedback output pin is connected with the camera feedback input pin, the data output pin is connected with the camera information connection pin, and the data access pin is connected with the vehicle camera.

6. The image processing display circuit for a streaming rearview mirror for vehicles of claim 2, wherein: It also includes a power supply control circuit, which includes a power supply control chip U10, the power supply control chip U10 is provided with four pins, the third pin of the power supply control chip U10 is connected with the power supply, and the second pin of the power supply control chip U10 is connected with the power supply access pin.

7. The image processing display circuit for a streaming rearview mirror for vehicles of claim 2, wherein: It also includes a vehicle bus circuit, and the data control chip U1 is provided with a vehicle bus connection pin, the vehicle bus circuit includes a vehicle bus conversion chip U8, the vehicle bus conversion chip U8 is provided with a vehicle bus output pin and a vehicle bus input pin, the vehicle bus input pin is connected with the vehicle bus, and the vehicle bus output pin is connected with the vehicle bus connection pin.

8. The image processing display circuit for a streaming rearview mirror for vehicles of claim 2, wherein: The data control chip U1 is also provided with a sensor multiplexing output pin, and the data control chip U1 can transmit the received vehicle multi-axis coordinate change signal to other circuits.

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