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HUD front windshield detection device and method

A front windshield and detection equipment technology, which is applied in the direction of measuring devices, optical instrument testing, optical performance testing, etc., can solve the problems of mass production product quality inspection and other problems, and achieve the effect of eliminating the influence

Pending Publication Date: 2018-07-31
FUYAO GRP SHANGHAI AUTOMOBILE GLASS CO LTD
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Problems solved by technology

[0004] The embodiment of the present invention provides a HUD front windshield detection equipment and method to solve the influence of the quality of the preferred sealed sample product on the quality detection of mass-produced products in the prior art

Method used

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  • HUD front windshield detection device and method
  • HUD front windshield detection device and method
  • HUD front windshield detection device and method

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Experimental program
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Embodiment 1

[0025] figure 1 It is a schematic structural diagram of a HUD windshield inspection device 100 provided in Embodiment 1 of the present invention, including a glass positioning system 110 , a projector system 120 , a camera inspection system 130 , an image calibration system 140 , and a computing system 150 .

[0026] Wherein, the glass positioning system 110 is used for fixing the reflective component and the front windshield of the HUD to be tested based on the vehicle loading positioning method. Specifically, the installation and fixing method of the front windshield in a real car is simulated, and the reflection component and the front windshield of the HUD to be tested are fixed. The reflection component is used to separate the virtual image so as to measure the geometric size of the main image. Wherein, the reflective component can be a reflective surface part consistent with the inner surface of the HUD glass to be tested, such as a reflector, or a front glass with the ...

Embodiment 2

[0034] figure 2 It is a schematic flowchart of a method for detecting a HUD windshield provided by Embodiment 2 of the present invention. This embodiment is applicable to the situation of detecting the quality of the HUD front windshield, and the method may be performed by a HUD front windshield detection device, which specifically includes the following steps:

[0035] Step 210, acquire a first HUD image acquired by the camera detection system, wherein the first HUD image is an image formed by reflecting a projected image through a reflective component.

[0036]The reflection component is fixed on the inspection fixture based on the glass positioning system, so as to reflect the projected image to form the first HUD image. The first HUD image is used to calculate the geometric dimensions of the main image, and depending on the selection of the reflective component, the first HUD image can be a single main image or an image in which the main image is separated from the virtu...

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Abstract

The invention discloses an HUD front windshield detection device and method. The device comprises a glass positioning system used for fixing a reflection part and a to-be-detected HUD front windshieldon the basis of a vehicle-mounted positioning mode; a projector system used for generating a projection image needed for detecting the HUD front windshield; a camera detection system used for acquiring a first HUD image and a second HUD image formed by the projection image after being reflected by the reflection part and the to-be-detected HUD front windshield; an image calibration system used for periodically calibrating the size of the pixel; a computing system used for calculating the geometric size of the main image in the first HUD image and the geometric size of the mixed image of the main image and the virtual image in the second HUD image based on the size of the calibration pixel, and calculating the ghost image value according to the geometric size of the main image and the geometric size of the mixed image. According to the invention, the quality of the to-be-detected HUD front windshield is determined according to the calculated ghost image value, and the influence of thesample sealing product quality on the quality detection of the products for mass production is eliminated.

Description

technical field [0001] The invention relates to the technical field of glass detection, in particular to a HUD front glass detection device and method. Background technique [0002] The Head Up Display (HUD) used in the car uses the principle of optical reflection to project important car-related information on the front windshield through the projector, and the height is roughly at the level of the driver's eyes. See relevant information without looking down. This puts forward higher requirements on the quality of automobile windshields, which also makes the quality inspection of automobile windshields particularly important. [0003] In the prior art, the quality inspection of automobile windshield mainly screens the high-quality HUD front windshield glass as the sealed sample product through testing equipment, and compares the image of the detected mass-produced product (HUD front windshield glass to be tested) with the sealed sample. Compare the images of sample produc...

Claims

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Application Information

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IPC IPC(8): G01M11/02
CPCG01M11/00
Inventor 肖小敏刘德萍林永安王佳宇
Owner FUYAO GRP SHANGHAI AUTOMOBILE GLASS CO LTD
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