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Method and device for starting reverse image

A reversing image and reverse gear technology, which is applied in transportation and packaging, optical observation devices, vehicle parts, etc., can solve the problems of slow start speed, poor user experience, and long time to see the image, so as to achieve convenient reversing and start speed fast effect

Inactive Publication Date: 2016-01-27
CHANGSUO SOFTWARE TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The startup speed of this process is slow, and the user takes a very long time from booting up to seeing the image, about ten seconds, and the user experience is poor.

Method used

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  • Method and device for starting reverse image
  • Method and device for starting reverse image
  • Method and device for starting reverse image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] figure 1 It is a schematic flow chart of starting the reversing image provided by Embodiment 1 of the present invention. The method can be executed by a reversing imaging device configured in the vehicle. The device can be implemented by software and / or hardware, and is generally configured in the vehicle's vehicle control equipment as a part of the vehicle control system. Such as figure 1 As shown, the method for starting the reversing image provided by this embodiment specifically includes the following steps:

[0022] S110. When a system boot command is detected, perform a system boot operation, and instruct the underlying driver of the reversing camera to start to detect a reverse gear signal;

[0023] For the on-board control system, it usually interacts with the underlying driver software of each actuator, and can call and control its work. The actuator is, for example, a reversing camera or the like.

[0024] In practical applications, the user may first need...

Embodiment 2

[0035] figure 2 It is a schematic flowchart of a method for activating a reversing image provided by Embodiment 2 of the present invention. This embodiment optimizes the foregoing embodiments, such as figure 2 As shown, the method for starting the reversing image provided by this embodiment includes the following steps:

[0036] S210. When the system boot command is detected, execute the system boot operation, and instruct the bottom layer driver of the reversing camera to start to detect the reverse gear signal;

[0037] S220. Apply for a first video cache interface and a second video cache interface of the display device when a system startup command is detected, the first video cache interface is located on the upper layer of the second video cache interface, and the The first video cache interface is a transparent interface;

[0038] When the vehicle control system is turned on, two video buffer interfaces are set. The first video buffer interface is mainly used to di...

Embodiment 3

[0047] image 3 It is a flow chart of a method for activating a reversing image provided by Embodiment 3 of the present invention. Such as image 3 As shown, the method includes the following steps:

[0048] S301. When a power-on command is detected, load and start the underlying driver of the reversing camera;

[0049] S302. Apply for two framebuffer devices fb0 and fb1, and initialize fb0 and fb1;

[0050] Among them, the framebuffer uses a video output device to drive a video display device from a memory buffer containing complete frame data, and the initialization process includes setting fb0 to be located at the upper layer and fb1 to be located at the lower layer.

[0051] S303, whether there is a reverse gear signal is detected by the underlying driver of the camera; when the reverse gear signal is detected, then execute S304, otherwise execute S312;

[0052] S304, initialize the reversing camera;

[0053] S305. Send the image data collected by the camera to fb1, a...

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PUM

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Abstract

The embodiment of the invention discloses a method and a device for starting a reverse image. The method comprises the following steps: when a system startup instruction is monitored, executing a system startup operation, and instructing a bottom driver of a rear view camera to be started in order to detect a reverse gear signal; when the bottom driver of the rear view camera detects the reverse gear signal, outputting image data acquired by the rear view camera to display equipment to display the image data, and instructing a reverse application to be started; and when the reverse application is started, controlling the rear view camera through the reverse application, and overlapping a reverse image interface and the image data acquired by the rear view camera to the display equipment to display the overlapped reverse image interface and image data. Through the technical scheme provided by the embodiment of the invention, the reverse image can be started rapidly and displayed, so that a user can view a rear situation of a vehicle within a short time, and the reversing experience of the user is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of reversing images, in particular to a method and device for activating a reversing image. Background technique [0002] The reversing image is also called the parking assist system, or the reversing visual system. The reversing image in the car system is a function that users are very concerned about. When the vehicle is in reverse gear, the reversing image system will automatically connect to the high-definition reversing camera at the rear of the car, and clearly display the situation behind the car on the reversing LCD screen. superior. [0003] At present, the activation process of the reversing image function in the vehicle-mounted system on the market is as follows: the system is turned on and enters the main interface of the system. When a reverse gear signal is detected, the application program controls to turn on the reversing camera and displays the image to the user. The ...

Claims

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Application Information

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IPC IPC(8): H04N7/18B60R1/00
Inventor 陈树勇张战友陈文煜
Owner CHANGSUO SOFTWARE TECH SHANGHAI CO LTD