Integrated terminal with three types of video output for collision mitigation system

Abstract

The utility model discloses an integrated terminal with three types of video output for a collision mitigation system, which comprises an integrated main control board, and a main control chip, a first video processing chip, a second video processing chip, an HDMI external interface, a VGA external interface and a CVBS external interface are integrated on the integrated main control board. The main control chip outputs a first video signal to be connected with the first video processing chip, and the first video processing chip outputs a second video signal to be connected with the second video processing chip; the first video processing chip outputs a first HDMI signal to the HDMI external interface and a VGA signal to the VGA external interface, and the second video processing chip outputs a CVBS signal to the CVBS external interface. According to the integrated terminal, the application scene is widened, the use convenience is improved, the use difficulty and development difficulty are reduced, the integrated terminal is not only suitable for new vehicles, but also suitable for upgrading and reconstruction of old vehicles, a control circuit for three-way video output is reduced, and the hardware cost is reduced.

Description

TECHNICAL FIELD

[0001] The application provides an integrated terminal with three types of video output for a collision mitigation system, and relates to the field of automobile active safety technology. BACKGROUND

[0002] The collision mitigation system, also known as the collision mitigation braking system, is a safety technology system for predicting and actively preventing collisions for automobiles. The traditional collision mitigation system is mainly composed of millimeter wave radar, single camera, braking system and alarm system, and mainly makes decisions based on whether there is a collision danger in front of the vehicle.

[0003] For the application scenario of applying the collision mitigation system to vehicle upgrading, due to the different communication protocols of the existing vehicle screens, the screen display cannot be adapted, and the alarm system can only take sound and light alarm, and cannot realize real-time display of related videos (including lane line recognition, vehicle recognition and real-time distance display of forward objects). CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the application is how to adapt various types of screens when the collision mitigation system is applied to vehicles.

[0005] In order to solve the above technical problems, the technical scheme of the application is to provide an integrated terminal with three types of video output for a collision mitigation system, which comprises an integrated main control board, wherein the integrated main control board is integrally provided with a main control chip, a first video processing chip, a second video processing chip, an HDMI external interface, a VGA external interface and a CVBS external interface; the main control chip outputs a first video signal connected to the first video processing chip, and the first video processing chip outputs a second video signal connected to the second video processing chip; the first video processing chip outputs a first HDMI signal to the HDMI external interface and a VGA signal to the VGA external interface, and the second video processing chip outputs a CVBS signal to the CVBS external interface.

[0006] Preferably, the first video signal is a DP signal, the main control chip is provided with a DP signal output port, the first video processing chip is provided with a DP signal input port, and the DP signal output port of the main control chip is connected to the DP signal input port of the first video processing chip through a DP signal.

[0007] Preferably, the second video signal is an HDMI signal, the first video processing chip is provided with a second HDMI signal output port, the second video processing chip is provided with an HDMI signal input port, and the second HDMI output interface of the first video processing chip is connected to the HDMI input interface of the second video processing chip through an HDMI signal.

[0008] Preferably, the HDMI external interface is connected to the vehicle-mounted HDMI display externally, and / or the VGA external interface is connected to the vehicle-mounted VGA display externally, and / or the CVBS external interface is connected to the vehicle-mounted CVBS display externally.

[0009] Preferably, a 5V power module powered by an external power supply is further included, and the 5V power module outputs two 5V power supply lines connected to the HDMI external interface and the VGA external interface respectively.

[0010] Further, the first video processing chip is set as an LT8712EXI model video processing chip, and the second video processing chip is set as an MS1836S model video processing chip.

[0011] Further, the 5V power module is connected with a three-way synchronous step-down converter.

[0012] Further, the three-way synchronous step-down converter is provided with a 3.3V power supply output, a 1.8V power supply output and a 1.2V power supply output for connecting the first video processing chip and the second video processing chip.

[0013] Preferably, the master control chip is set as an XCZU3EG model master control chip.

[0014] The integrated terminal with three types of video output for a collision mitigation system provided in the application is characterized in that a master control chip, a first video processing chip for externally providing an HDMI signal and a VGA signal, and a second video processing chip for externally providing a CVBS signal are integrated on a master control board, thereby widening the applicable scenarios, improving the convenience of use, reducing the difficulty of use and development, being suitable for new cars and old car upgrades, reducing the control circuit of three-way video output, and reducing the hardware cost. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The circuit principle schematic diagram of the integrated terminal with three types of video output for a collision mitigation system provided in the application is shown. DETAILED DESCRIPTION

[0016] In order to make the application more obvious and easy to understand, various example embodiments will be introduced below. These examples are non-limiting, and it should be understood that they are used to illustrate the broader application of the device, system and method. These embodiments can be varied and replaced by equivalents without departing from the essential content and scope of the application. In addition, various changes can be made to adapt to special conditions, materials, material components, processing types, processing actions or steps to adapt to the purpose, content or scope of the application. All these changes will be within the scope of protection of the application.

[0017] For any material, dimensions, amounts, etc. recited in the Summary or Detailed Description, these should be taken as examples of specific embodiments and not as limitations on the scope of the subject application. Furthermore, the various embodiments described herein should be considered in a sense to be complementary, rather than purely alternative, unless otherwise stated. In other words, embodiments from one embodiment can be freely combined with embodiments from other embodiments, as would be readily apparent to one of ordinary skill in the art, unless the embodiments are stated to be mutually exclusive.

[0018] In the description of the present application, it should be noted that the terms "inner", "outer" and the like indicate the positional or location relationship based on the positional or location relationship shown in the drawings, or the positional or location relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] The embodiment of the present application provides an integrated terminal with three types of video output for a collision mitigation system, which is applied to alarm of the collision mitigation system, and receives related early warning display video information (for example, video information such as lane line recognition, human-vehicle recognition and real-time distance display of forward objects, and warning effect) generated by the collision mitigation system through a main control chip. According to the type of the vehicle-mounted display, the video signal of the corresponding protocol is output, HDMI, VGA and CVBS three types of displays can be connected at the same time, 3 different video protocol pictures are output, and the application surface is wider.

[0021] Specifically, referring to Figure 1 , which comprises an integrated main control board, the integrated main control board is integrally provided with a main control chip, a first video processing chip, a second video processing chip, an HDMI external interface, a VGA external interface and a CVBS external interface; the main control chip outputs a first video signal connected to the first video processing chip, and the first video processing chip outputs a second video signal connected to the second video processing chip; the first video processing chip outputs a first HDMI signal to the HDMI external interface, and a VGA signal to the VGA external interface, and the second video processing chip outputs a CVBS signal to the CVBS external interface.

[0022] The integrated terminal with three types of video output for a collision mitigation system provided by the embodiment of the application is suitable for new cars and old car modification by integrating the main control chip, the first video processing chip for providing HDMI signal and VGA signal externally, and the second video processing chip for providing CVBS signal externally on a main control board, thereby reducing the control circuit of three video outputs and reducing the hardware cost.

[0023] In a further embodiment, the first video signal is set as a DP signal, the main control chip is provided with a DP signal output port, the first video processing chip is provided with a DP signal input port, and the DP signal output port of the main control chip is connected to the DP signal input port of the first video processing chip through a DP signal. The second video signal is set as an HDMI signal, the first video processing chip is provided with a second HDMI signal output port, the second video processing chip is provided with an HDMI signal input port, and the second HDMI output interface of the first video processing chip is connected to the HDMI input interface of the second video processing chip through an HDMI signal.

[0024] Specifically, the three video external interfaces can be used simultaneously, output the same picture or different pictures, or partially used. For example, the HDMI external interface is connected to the vehicle-mounted HDMI display, the VGA external interface is connected to the vehicle-mounted VGA display, and the CVBS external interface is connected to the vehicle-mounted CVBS display. When the vehicle-mounted display is sufficient, the three video external interfaces can be used simultaneously, and when only part of the vehicle-mounted display is available, the corresponding video external interface supported can be partially used.

[0025] In a further embodiment, the integrated terminal with three types of video output for a collision mitigation system provided by the embodiment of the application further comprises a 5V power module powered by an external power supply, which is generally powered by a vehicle-mounted 24V power supply, converted to a 12V power supply output as a 5V power supply output, and connected to the HDMI external interface and the VGA external interface through two 5V power supplies to provide 5V power supply for the HDMI external interface and the VGA external interface. Further, the 5V power module is connected with three synchronous step-down converters, wherein the three synchronous step-down converters are provided with 3.3V power supply output, 1.8V power supply output and 1.2V power supply output for connecting the first video processing chip and the second video processing chip, respectively, for main power supply, digital circuit power supply and IO power supply.

[0026] Specifically, the first video processing chip is set as an LT8712EXI type video processing chip; the second video processing chip is set as an MS1836S type video processing chip; and the main control chip is set as an XCZU3EG type main control chip; all of which are existing commercially available components.

[0027] It can be understood that each component used in the embodiments of the present application is a related component that can be purchased, and the technical solution content of the present application does not involve improvement of the related component itself.

[0028] The above is only a preferred embodiment of the present application, not any form and substantial limitation of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the present application, some improvements and supplements can be made, which should also be regarded as the protection scope of the present application. For those skilled in the art, without departing from the content and scope of the present application, some changes, modifications and equivalent changes of the above disclosed technical content can be made, which are equivalent embodiments of the present application; at the same time, any equivalent change, modification and evolution of the above-mentioned embodiments according to the essential technology of the present application are still within the scope of the technical solution of the present application.

Claims

1. An integrated terminal with three types of video output for a collision mitigation system, characterized in that, The system includes an integrated main control board, which integrates a main control chip, a first video processing chip, a second video processing chip, an HDMI external interface, a VGA external interface, and a CVBS external interface. The main control chip outputs a first video signal and connects to the first video processing chip, and the first video processing chip outputs a second video signal and connects to the second video processing chip. The first video processing chip outputs a first HDMI signal to the HDMI external interface, a VGA signal to the VGA external interface, and the second video processing chip outputs a CVBS signal to the CVBS external interface.

2. An integrated terminal with three types of video output for a collision mitigation system according to claim 1, characterized in that, The first video signal is set as a DP signal, the main control chip is provided with a DP signal output port, the first video processing chip is provided with a DP signal input port, and the DP signal output port of the main control chip is connected to the DP signal input port of the first video processing chip through a DP signal.

3. An integrated terminal with three types of video output for a collision mitigation system according to claim 1, characterized in that, The second video signal is set as an HDMI signal. The first video processing chip has a second HDMI signal output port, and the second video processing chip has an HDMI signal input port. The second HDMI output interface of the first video processing chip is connected to the HDMI input interface of the second video processing chip through the HDMI signal.

4. An integrated terminal with three types of video output for a collision mitigation system according to claim 1, characterized in that, The HDMI external interface is connected to an in-vehicle HDMI display, and / or the VGA external interface is connected to an in-vehicle VGA display, and / or the CVBS external interface is connected to an in-vehicle CVBS display.

5. An integrated terminal with three types of video output for a collision mitigation system according to claim 1, characterized in that, It also includes a 5V power module that is powered by an external power supply. The 5V power module outputs two 5V power supplies, which are respectively connected to the HDMI external interface and the VGA external interface.

6. An integrated terminal with three types of video output for a collision mitigation system according to claim 5, characterized in that, The first video processing chip is set to the LT8712EXI model; the second video processing chip is set to the MS1836S model.

7. An integrated terminal with three types of video output for a collision mitigation system according to claim 6, characterized in that, The 5V power module is connected to a three-channel synchronous buck converter.

8. An integrated terminal with three types of video output for a collision mitigation system according to claim 7, characterized in that, The three-channel synchronous buck converter is equipped with a 3.3V power supply output, a 1.8V power supply output, and a 1.2V power supply output for connecting the first video processing chip and the second video processing chip.

9. An integrated terminal with three types of video output for a collision mitigation system according to claim 1, characterized in that, The main control chip is set to the XCZU3EG model.

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