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Method and data monitoring module for checking validity of image data

A technology of image data and data monitoring, applied in the direction of electrical digital data processing, error detection/correction, response to error generation, etc., can solve non-safety-critical and other problems

Active Publication Date: 2021-12-28
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, errors can also occur in the transmission and display of the image data of the warning report, which do not cause or only cause barely visible changes in the safety-relevant parts of the image data and are therefore classified as non-safety-critical.

Method used

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  • Method and data monitoring module for checking validity of image data

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Embodiment Construction

[0026] figure 1 An embodiment of a method 500 according to the invention is shown in the form of a flowchart. In a first step 501, image data generated in a graphics processor is received by a data monitoring module of a display device. In this case, the same image data can be received at periodic time intervals as image data packets, which are also referred to as image frames. The image data include, for example, information for displaying a warning symbol in a display of the display device. In this case, the image data are assigned to pixels of a picture point of the display, wherein the pixels comprise sub-pixels divided according to the primary colors red, green and blue. For example, each pixel includes sub-pixels for each primary color for additive color mixing. The image data thus contain information on the intensity with which the assigned sub-pixels in the corresponding primary color are to emit light, wherein this intensity is typically coded as a value in the for...

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PUM

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Abstract

The invention relates to a method (500) for checking the validity of image data assigned to pixels of an image point of a display device (100), wherein the selection (502) of the pixels is respectively considered At least one image data per pixel is used for check value formation (504), wherein the formed check value is compared with the stored check value (505), and wherein only if the calculated and stored The validity of the image data is determined only when the check values ​​are consistent, wherein at least one image data of at least one of the selected pixels is not considered (503) for all of the check values The description is formed (504).

Description

technical field [0001] The invention relates to a method for checking the validity of image data assigned to pixels of image points of a display device. The invention also relates to a data monitoring module for a display device, wherein the display device has pixels comprising pixels. Background technique [0002] In order to meet the safety requirements according to ISO standard 26262, display devices in motor vehicles usually contain one or more monitoring modules, which perform calculations and perform checks on warning reports shown in the display of the display device value comparison. In the event of the occurrence of a safety-critical error in the display of the warning report, which was determined by comparison of the check value, the display is deactivated. DE 10 2007 048 608 A1 describes a method for checking the validity of a display signal, for example for checking the validity of image data of a warning message. [0003] However, errors can also occur in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/00G09G5/00G06F11/08
CPCG09G3/006G09G5/003G09G2330/08G09G2330/12G09G2360/16G09G2370/10G09G2380/10G06F11/1004G06F11/08
Inventor I.卡特桑M.林德尔
Owner ROBERT BOSCH GMBH
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