Electric vehicle instrument cluster

A combination instrument and electric vehicle technology, applied to instruments, vehicle parts, calculations, etc., can solve the problems of decreased calculation accuracy, detection pointers are easily interfered by light, etc., and achieve the effects of improving stability, solving detection accuracy reduction, and improving efficiency

A combination instrument and electric vehicle technology, applied to instruments, vehicle parts, calculations, etc., can solve the problems of decreased calculation accuracy, detection pointers are easily interfered by light, etc., and achieve the effects of improving stability, solving detection accuracy reduction, and improving efficiency

CN109866617BActive Publication Date: 2021-05-04武汉格瑞恩电子仪表有限公司
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  • Electric vehicle instrument cluster
  • Electric vehicle instrument cluster
  • Electric vehicle instrument cluster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 , shown in 2, a kind of combined instrument of electric vehicle is provided with the control unit in instrument, tachometer, speedometer and display unit, and tachometer, speedometer and display unit are connected with the control unit in instrument respectively; Also be provided with pointer reading calculation Module, the pointer reading calculation module is connected with the tachometer and the speedometer, the pointer reading calculation module is connected with the control unit in the instrument; the pointer reading calculation module is used to perform the following process:

[0052] S1: Collect the original image of the dial area and grayscale it, then binarize the acquired grayscale image, and extract the scale;

[0053] S2: Calculate pointer reading,

[0054]

[0055] a i Indicates the point on the tick mark closest to the left of the straight line of the pointer, b i Indicates the point on the tick mark closest to the left of the straig...

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Abstract

The invention discloses an electric vehicle combination meter, which comprises a control unit in the meter, a tachometer, a speedometer and a display unit, and the tachometer, speedometer and display unit are respectively connected with the control unit in the meter; it also includes a pointer reading calculation module , the pointer reading calculation module is connected with the tachometer and the speedometer, and the pointer reading calculation module is connected with the control unit in the instrument. The invention solves the problem that the reading of the pointer is easily interfered by light, which leads to the decrease of the detection accuracy, reduces the detection error of the pointer of the electric vehicle, and improves the accuracy of the pointer detection and calculation.

Description

technical field [0001] The present invention relates to the technical field of instruments and meters, and more specifically relates to an electric vehicle combination instrument. Background technique [0002] At home and abroad, a lot of research has been carried out on the image processing and recognition of pointer instruments. Due to the differences between electric vehicle instruments and other pointer instruments, and the pointers and scales of electric vehicle instruments generally use light guide plates, the brightness is low, and the reading The process is easily affected by the interference of light changes in the environment, so conventional pointer detection algorithms, such as the Hough method, angle method, and distance method, are no longer applicable. In recent years, some improved algorithms have been produced, but they cannot meet the needs of the automobile inspection industry in terms of detection accuracy, efficiency and stability. Contents of the inve...

Claims

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Application Information

Patent Timeline
04 May 2021
Publication
CN109866617B
IPC
B60K35/00; G06K9/00
Inventors
汪利来