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CN-116614601-B - Image transmission method and system for vehicle projection display and vehicle with image transmission method and system

CN116614601BCN 116614601 BCN116614601 BCN 116614601BCN-116614601-B

Abstract

The invention relates to the technical field of vehicle projection, in particular to an image transmission method and system for vehicle projection display and a vehicle thereof. The image transmission method comprises the steps that a vehicle body controller obtains continuous image information, the image information is identified according to an obtaining priority order, flag bits of each image information are added according to an identification result, an image acquisition module acquires and transmits current image information and the flag bits of the current image information, an MCU module obtains the current image information and the flag bits of the current image information, the MCU module analyzes the flag bits of the current image information, the current image information is transmitted to a corresponding buffer area based on an analysis result, the image information is transmitted to the corresponding buffer area, the buffer area storing the previous image information transmits the previous image information, and the previous image information is transmitted to a projection display module for display. The invention improves the definition and fluency of projection display during image projection, and has good user experience.

Inventors

  • Tang jinteng
  • YANG BO
  • CAO JINGHENG
  • TANG RONGQI

Assignees

  • 常州星宇车灯股份有限公司

Dates

Publication Date
20260508
Application Date
20230517

Claims (9)

  1. 1. An image transmission method for a vehicle projection display is characterized by comprising the following steps: S1, a vehicle body controller (100) acquires continuous image information, identifies the image information according to the acquisition priority order, and adds a zone bit to each piece of image information according to the identification result; s2, an image acquisition module (200) acquires and transmits current image information and a zone bit of the current image information; S3, the MCU module (400) acquires the current image information and the zone bit of the current image information, the MCU module (400) comprises two buffer areas, namely a first buffer area (410) and a second buffer area (420), the MCU module (400) analyzes the zone bit of the current image information, and the current image information is transmitted to the corresponding buffer area based on an analysis result; s4, transmitting the image information to a corresponding buffer area, transmitting the previous frame of image information by a buffer area for storing the previous frame of image information, and transmitting the previous frame of image information to a projection display module (500) for display; in step S3, transmitting the current image information to the corresponding buffer area based on the analysis result specifically includes: If the image information of the previous frame is stored in the first buffer (410), the MCU module (400) analyzes the flag bit of the current image information and the flag bit of the image information of the previous frame; If flag= DiffPicture, storing the current image information in the second buffer (420) for cyclic transmission; if flag= TotalPicture, the current image information is stored in the first buffer (410), and the current image information is stored in the second buffer (420) until the Flag of the current image information is different from the Flag of the previous frame of image information.
  2. 2. The image transmission method for vehicle projection display according to claim 1, wherein in step S1, similarity recognition is performed on two adjacent frames of image information, and Flag addition is performed by setting a Flag field, comprising: If the similarity of the two adjacent frames of image information is larger than a preset value, adding a flag= DiffPicture into the current image information; If the similarity of the two adjacent frames of image information is smaller than or equal to a preset value, the Flag bit flag= TotalPicture is added to the current image information.
  3. 3. The image transmission method for vehicle projection display according to claim 1, characterized in that in step S4, the previous frame of image information is transmitted to the projection display module (500) for display by the DMA controller inside the MCU module (400).
  4. 4. The image transmission method for a vehicle projection display of claim 1, wherein the image acquisition module transmits the image information to the MCU module (400) through an ethernet communication protocol.
  5. 5. A transmission system employing the image transmission method for vehicle projection display according to any one of claims 1 to 4, characterized by comprising: the vehicle body controller (100), the vehicle body controller (100) obtains the continuous image information, the image information is identified according to the order of the obtaining priority, and the addition of the zone bit is carried out on each piece of the image information according to the identification result; the image acquisition module (200) is connected with the vehicle body controller (100), and the image acquisition module (200) acquires and transmits the current image information and the zone bit of the current image information; the image transmission module (300) is connected with the image acquisition module and is used for receiving the current image information and the zone bit of the current image information; The MCU module (400) is connected with the image transmission module (300), the MCU module (400) comprises two buffer areas, namely a first buffer area (410) and a second buffer area (420), the MCU module (400) acquires the current image information and the zone bit of the current image information, the MCU module (400) analyzes the zone bit of the current image information and transmits the current image information to the corresponding buffer area based on an analysis result, the image information is transmitted to the corresponding buffer area, the buffer area for storing the previous frame of image information transmits the previous frame of image information, and the previous frame of image information is transmitted to the projection display module (500) for display; and the projection display module (500) is connected with the MCU module (400) and is used for projecting and displaying the image information of the previous frame.
  6. 6. The image transmission system for a vehicle projection display of claim 5, wherein the image transmission module (300) is an ethernet module.
  7. 7. The image transmission system for a vehicle projection display of claim 5, wherein the projection display module (500) is a device with a display screen or a vehicle projection lamp.
  8. 8. The image transmission system for a vehicle projection display of claim 7, wherein the light source of the vehicle projection lamp is a light emitting diode, and the light emitting diode is a micro LED.
  9. 9. A vehicle comprising an image transmission system for a projection display of a vehicle according to any one of claims 5 to 8.

Description

Image transmission method and system for vehicle projection display and vehicle with image transmission method and system Technical Field The invention relates to the technical field of vehicle projection, in particular to an image transmission method and system for vehicle projection display and a vehicle thereof. Background The floor projection technology is capable of displaying any image within the same module, which remodels the consumer's perception of external lighting by providing entirely new innovative lighting functions. According to the technology, the vehicle body controller is used for carrying out self-defined image or video transmission and then projecting the image or video on the ground, the vehicle interaction function is enhanced through the image or video, the humanized atmosphere is improved, the automobile starts to become more intelligent, but the problems of image blocking, flickering or screen breakage and the like can occur in the conventional image transmission, so that the image is unclear or unsmooth in the projection process, and the user experience is influenced. Disclosure of Invention The invention aims to solve the technical problems that an image of a vehicle projection display is unclear or unsmooth in the prior art, and provides an image transmission method for the vehicle projection display, which can avoid the problems of image blocking, flickering or screen breakage and the like in the image transmission process, and improves the definition and fluency of the projection display during image projection, and has good user experience. The technical scheme adopted by the invention for solving the technical problems is that the image transmission method for vehicle projection display comprises the following steps: s1, a vehicle body controller acquires continuous image information, identifies the image information according to the acquisition priority order, and adds a zone bit to each piece of image information according to an identification result; s2, an image acquisition module acquires and transmits current image information and a zone bit of the current image information; S3, the MCU module acquires the current image information and the zone bit of the current image information, the MCU module comprises two buffer areas, namely a first buffer area and a second buffer area, the MCU module analyzes the zone bit of the current image information, and the current image information is transmitted to the corresponding buffer area based on an analysis result; And S4, transmitting the image information to a corresponding buffer area, transmitting the previous frame of image information by the buffer area for storing the previous frame of image information, and transmitting the previous frame of image information to a projection display module for display. Further, specifically, in step S3, transmitting the current image information to the corresponding buffer based on the processing result specifically includes: If the image information of the previous frame is stored in the first buffer area, the MCU module analyzes the zone bit of the current image information and the zone bit of the image information of the previous frame; If flag= DiffPicture, storing the current image information in the second buffer area for cyclic transmission; if flag= TotalPicture, storing the current image information in the first buffer until the Flag of the current image information is different from the Flag of the previous frame of image information, and storing the current image information in the second buffer. Further specifically, in step S1, similarity recognition is performed on two adjacent frames of image information, and Flag bit addition is performed by setting a Flag field, including: if the similarity of the two adjacent frames of image information is larger than a preset value, adding a flag= DiffPicture into the current image information; if the similarity of the two adjacent frames of image information is smaller than or equal to a preset value, the Flag bit flag= TotalPicture is added to the current image information. Further, specifically, in step S4, the previous frame of image information is transmitted to the projection display module for display by the DMA controller inside the MCU module. Further, specifically, the image acquisition module transmits the image information to the MCU module through an Ethernet communication protocol. A transmission system employing the image transmission method for vehicle projection display as described above, comprising: The vehicle body controller acquires continuous image information, identifies the image information according to the acquisition priority order, and adds a zone bit to each piece of image information according to the identification result; The image acquisition module is connected with the vehicle body controller and is used for acquiring and transmitting the current image information and the zone bit of the current image