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A method and system for determining the center of a dashboard based on pointer capture

A technology for determining methods and dashboards, applied in instruments, calculations, character and pattern recognition, etc., can solve problems such as errors that are prone to occur, and achieve the effect of reducing errors

Active Publication Date: 2022-07-15
AEROSPACE HI TECH HLDG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing method of using the pointer to determine the center of the instrument is prone to errors, and now provides a method and system for determining the center of the instrument panel based on pointer capture

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  • A method and system for determining the center of a dashboard based on pointer capture

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specific Embodiment approach 1

[0027] Specific implementation mode 1: refer to figure 1 Specifically describing this embodiment, a method for determining the center of an instrument panel based on pointer capture described in this embodiment includes the following steps:

[0028] Step 1: Start the meter, at this time, the pointer of the meter starts to perform self-checking scanning. After a delay of 3s, ensure that the pointer points to the 0 scale line stably. At this time, take a picture of the instrument panel when the pointer indicates the 0 scale of the meter.

[0029] Judgment step 1: Judging whether there is green in the instrument panel photo obtained in step 1, and the brightness is 600cd / m 2 ~800cd / m 2 , if yes, go to step 2, otherwise go back to step 1,

[0030] Step 2: Select the green color in the dashboard photo, and the brightness is at 600cd / m 2 ~800cd / m 2 The center point of the area is used as the first feature point,

[0031] Step 3: Intercept the pointer part in the photo of the in...

specific Embodiment approach 2

[0042] Embodiment 2: A system for determining the center of a dashboard based on pointer capture described in this embodiment includes the following modules:

[0043] Picture shooting module: start the instrument, after a delay of 3s, take a picture of the first instrument panel when the pointer indicates the 0 scale of the instrument,

[0044] Drive the pointer to swing to any non-0 scale, and the scale does not include the red area, after a delay of 1s, take a photo of the second instrument panel;

[0045] Feature point selection module: select the green in the first instrument panel photo, and the brightness is 600cd / m 2 ~800cd / m 2 The center point of the area is used as the first feature point,

[0046] Select the green in the second instrument panel photo, and the brightness is at 600cd / m 2 ~800cd / m 2 The center point of the area is used as the second feature point;

[0047] Picture interception module: intercept the pointer part in the photo of the first instrument ...

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Abstract

A method and system for determining the center of an instrument panel based on pointer capture relate to the field of automobile instrument detection. The present invention is to solve the problem that errors are prone to occur in the existing method for determining the center of the meter by using a pointer. The method and system for determining the center of an instrument panel based on pointer capture according to the present invention accurately extract the pointer by taking the images of the pointer at different positions in the actual dial, accurately locate the position of the pointer on the dial, and then calculate the dial The actual center point coordinates reduce the error caused by the traditional theoretical value calculation method.

Description

technical field [0001] The invention belongs to the field of automobile instrument detection, in particular to the positioning detection of the center point of the instrument panel. Background technique [0002] When the existing visual system captures the pointer, it only uses the static pointer for operation, and obtains the center coordinate of the dial according to the theoretical value. With the increasing enthusiasm of users for special-shaped hands or dials, it is difficult to ensure the accuracy of the center of the dial with the existing pointer capture methods. The special-shaped pointer will cause the pointer indication to deviate, thereby affecting the key characteristics of the instrument. At the same time, due to the stretching of the dial and other reasons, each set of dials has deviations from each other. If the detection is carried out according to the existing fixed theoretical value, it will also lead to the problem of error in the detection. SUMMARY OF...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V10/12G06V30/14G06V10/25G06V10/56G06V10/74G06K9/62
CPCG06V10/22G06V10/25G06V10/56G06V10/751G06V2201/02
Inventor 卜家洛李占双金佳鑫刘刚
Owner AEROSPACE HI TECH HLDG GROUP
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