CN-117183940-B - System and method for rear-mounted equipment to access vehicle central control screen

CN117183940BCN 117183940 BCN117183940 BCN 117183940BCN-117183940-B

Abstract

A system and a method for enabling a back-mounted device to access a central control screen of a vehicle are provided, wherein the central control host is used for outputting video signals of the central control of the vehicle, each functional unit of the central control display screen is configured, the central control display screen is used for analyzing video signals in signals sent by the central control host, an access end is connected with the central control host and used for analyzing the video signals and control signals sent by the central control host, an output end is communicated with the central control display screen and used for receiving video signals generated by the back-mounted device and transmitting communication signals between the central control host and the central control display screen, the back-mounted device can analyze video signal content in the signals sent by the central control host and generates a new video signal together with display content of the back-mounted device, whether the video content of the central control host is displayed or not is determined by the back-mounted device according to requirements, and the synthesized video signal is displayed on the central control display screen through the output end.

Inventors

TANG ZHONGLIN
GONG XINGQI

Assignees

深圳市天双科技有限公司

Dates

Publication Date: 20260508
Application Date: 20230920

Claims (8)

1. A system for accessing a rear-mounted device to a central control screen of a vehicle is characterized by comprising a central control host, a central control display screen, an access terminal, an output terminal and rear-mounted devices, wherein, The central control host is used for outputting a video signal of the central control of the vehicle, configuring each functional unit of the central control display screen and making corresponding control according to the state of the central control display screen; the central control display screen is used for analyzing video signals in signals sent by the central control host computer and reporting the state information of the central control display screen to the central control host computer; The access terminal is connected with the central control host, and is used for analyzing video signals and control signals sent by the central control host and transmitting signals sent by the central control display screen transmitted by the output terminal; The output end is connected with the central control display screen and transmits other signals except the video signals, which are received by the access end, from the central control host to the central control display screen, the central control display screen transmits control signals to the central control host, and the access end and the output end transmit the control signals to the central control host and transmit the control signals to the after-mounting equipment in addition to the transmission of the control signals between the central control host and the central control display screen; the back-mounted equipment can analyze the video signal content in the signal sent by the central control host computer transmitted by the access terminal, and generates a new video signal together with the display content of the back-mounted equipment, the back-mounted equipment determines whether to display the video content of the central control host computer according to the requirement, and the synthesized video signal is displayed on the central control display screen through the output terminal.
2. The system for accessing a vehicle center control screen by a back-mounted device of claim 1, wherein the center control host is further configured to query touch data of the center control display screen when needed.
3. The system for accessing the rear-mounted equipment to the vehicle central control screen according to claim 1, wherein the access terminal adopts a serializer of the central control host.
4. The system for accessing the rear-mounted equipment to the vehicle central control screen according to claim 1, wherein the output end adopts a deserializer of the central control display screen.
5. A method for accessing a vehicle center control screen by using the system for accessing a vehicle center control screen by a back-up device according to any one of claims 1 to 4, comprising: Step S1, after the access terminal and the central control host establish communication connection, the central control host transmits a control signal of a central control display screen to the access terminal, and simultaneously transmits a video signal during starting; Step S2, when the access terminal and the central control host are connected, the output terminal is also connected with the central control display screen, the output terminal transmits various state control signals of the central control display screen to the central control host through the access terminal at the moment, and receives various signals transmitted by the central control host through the access terminal and then transmits the signals to the central control display screen; Step S3, after the transmission of the initial control signal is completed, the central control host starts to transmit video signals, the access terminal transfers the video signals to the post-installation equipment, the post-installation equipment analyzes the video signal content of the central control host, then, the self display content is added, one path of video signals are recombined, and the video signals are displayed on the central control display screen through the output terminal; And S4, after the central control host computer in the initial stage configures the central control display screen, the central control host computer queries data information according to the state of the central control display screen.
6. The method for accessing the rear-mounted equipment to the vehicle central control screen of claim 5, wherein after the central control host determines that the primary connection is successful, all functional modules of the central control display screen are started, and otherwise, only part of the modules of the central control display screen work.
7. The method for accessing a vehicle center control screen by a back-end device according to claim 5, wherein said back-end device determines when to display the contents of the center control host and when to display its own contents according to the requirements.
8. The method for accessing a vehicle center control screen by a back-end device of claim 5, wherein the access terminal and the output terminal are capable of controlling communication between the center control host and the center control display screen when they are in communication.

Description

System and method for rear-mounted equipment to access vehicle central control screen Technical Field The invention discloses an access method, in particular to a system and a method for accessing a rear-mounted device to a central control screen of a vehicle. Background Currently, most of central control screens and central control hosts of automobiles transmit video signals through serializers and deserializers. The back-up equipment (such as a refitted reversing image, a 360-degree panoramic automobile data recorder and the like) has the requirement of displaying the working state through a central control screen of the automobile. Currently, aiming at an automobile using a serializer and a deserializer, after-loading equipment is provided with a set of control switch on a connecting line of the serializer and the deserializer, and the purpose of displaying videos of the after-loading equipment on the automobile central control screen is achieved by controlling a video signal source received by the central control screen. In the prior art, a certain problem exists in the method of determining the source of the video signal received by the automobile central control screen by controlling the switch. First, the control switch may have a significant screen abnormality when performing display switching, and may trigger an abnormal state of the center control screen on a part of the vehicle. Moreover, when the automobile central control screen displays the content from the rear-mounted equipment, the communication of the central control host computer is completely cut off, and the abnormal processing state of the central control host computer is triggered on part of the vehicles. Disclosure of Invention Aiming at the problem that the control switch is adopted when the rear-mounted equipment in the prior art is connected with the vehicle central control screen, and the abnormality is easy to occur, the invention provides a method and a system for connecting the rear-mounted equipment with the vehicle central control screen, which adopt an access end and an output end as switching, can solve the problem that the images of the prior art are abnormal when the display is switched, and seek a better switching effect. The problem of abnormal states that a central control screen can be triggered on part of vehicles is solved. The problem of the abnormal processing state that can trigger the central control host computer on some vehicles is solved. The technical proposal adopted by the invention for solving the technical problems is that the system for accessing the rear-mounted equipment to the central control screen of the vehicle comprises a central control host, a central control display screen, an access terminal, an output terminal and rear-mounted equipment, wherein, The central control host is used for outputting a video signal of the central control of the vehicle, configuring each functional unit of the central control display screen and making corresponding control according to the state of the central control display screen; the central control display screen is used for analyzing video signals in signals sent by the central control host computer and reporting the state information of the central control display screen to the central control host computer; The access terminal is connected with the central control host, and is used for analyzing video signals and control signals sent by the central control host and transmitting signals sent by the central control display screen transmitted by the output terminal; the output end establishes communication with the central control display screen, and is used for receiving video signals generated by the back-mounted equipment and transmitting communication signals between the central control host and the central control display screen; the back-mounted equipment can analyze the video signal content in the signal sent by the central control host computer transmitted by the access terminal, and generates a new video signal together with the display content of the back-mounted equipment, the back-mounted equipment determines whether to display the video content of the central control host computer according to the requirement, and the synthesized video signal is displayed on the central control display screen through the output terminal. A method of accessing a vehicle center control screen using a system for accessing a vehicle center control screen using a back-up device as described above, the method comprising: Step S1, after the access terminal and the central control host establish communication connection, the central control host transmits a control signal of a central control display screen to the access terminal, and simultaneously transmits a video signal during starting; Step S2, when the access terminal and the central control host are connected, the output terminal is also connected with the central control display screen, the output terminal transmi