Method for detecting electronic rearview mirror of automobile

Abstract

The invention discloses a method for detecting an electronic rearview mirror of an automobile, which comprises the following steps of: respectively mounting a laser transmitter and a laser receiver of which the bottom surfaces are provided with flexible film pressure sensors on a screen of the electronic rearview mirror of the automobile and detection equipment, and monitoring whether the laser transmitter and the laser receiver are completely attached or not through a control system; then, according to the visual angle of watching the screen specified by an automobile electronic rearview mirror manufacturer, the emission angle of the laser emission instrument is adjusted, then the position of the detection equipment is adjusted until the laser receiving instrument on the detection equipment receives the laser emitted by the laser emission instrument, and then the automobile electronic rearview mirror is detected at the position. According to the invention, the laser emitter and the laser receiver are ingeniously utilized, so that the positioning of the detection equipment is quickly and accurately completed, and the follow-up detection of the automobile electronic rearview mirror in a laboratory is facilitated.

Description

Technical Field

[0001] The invention belongs to the field of automobile electronic rearview mirrors, and in particular relates to a method for detecting automobile electronic rearview mirrors. Background Art

[0002] Automotive electronic rearview mirrors are a recent development. They use a camera and monitor system to capture a specific field of view. The monitor is installed in the cab. People of different heights view the monitor screen from different angles, resulting in differences in brightness and contrast. Testing of automotive electronic rearview mirrors requires detecting these differences. While existing technology includes devices capable of performing screen brightness and contrast measurements, no technology has been disclosed for detecting the brightness and contrast reproduction of automotive electronic rearview mirrors for people of different heights. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for detecting an automobile electronic rearview mirror, which is particularly suitable for detecting items such as screen brightness and contrast reproduction.

[0004] The object of the present invention is achieved through the following technical solution: A method for detecting an automotive electronic rearview mirror comprises the following steps:

[0005] 1) Mounting a laser transmitter having a flexible film pressure sensor mounted on its bottom surface on the screen of the monitor of the automotive electronic rearview mirror, and monitoring the measured value of the pressure sensor through a control system to ensure that the bottom surface of the laser transmitter is completely in contact with the screen;

[0006] 2) Mounting a laser receiver having a flexible film pressure sensor mounted on its bottom surface on a detection device, and similarly monitoring the measurement value of the pressure sensor through the control system to ensure that the bottom surface of the laser receiver is completely in contact with the detection device;

[0007] 3) adjusting the emission angle of the laser emitter through the control system according to the viewing angle of the screen specified by the manufacturer of the automotive electronic rearview mirror;

[0008] 4) Adjusting the position of the detection device until the laser receiver thereon receives the laser emitted by the laser transmitter, and then detecting the automobile electronic rearview mirror at this position using the detection device.

[0009] Beneficial effects:

[0010] Manufacturers specify viewing angles for people of different heights when viewing the monitor screen of an electronic rearview mirror. Based on these regulations, the present invention cleverly utilizes laser transmitters and receivers to quickly and accurately position the testing equipment, facilitating subsequent testing of electronic rearview mirrors in laboratories. The present invention is applicable to testing different types of electronic rearview mirrors. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A flow chart of a preferred embodiment of the method of the present invention;

[0012] Figure 2 Schematic diagram of the structure of a preferred laser transmitter;

[0013] Figure 3 Schematic diagram of the structure of a preferred laser receiver;

[0014] Figure 4 Schematic diagram of the positioning principle of the present invention. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] like Figure 1 As shown, this embodiment provides a method for detecting an automotive electronic rearview mirror, comprising the following steps:

[0017] Step 1) Install a laser transmitter with a flexible film pressure sensor on the bottom surface on the monitor screen of the automotive electronic rearview mirror, monitor the measured value of the pressure sensor through the control system to ensure that the bottom surface of the laser transmitter is completely in contact with the screen. At this time, the laser emitted by the laser transmitter is along the normal direction of the screen, such as Figure 4 As shown in the normal N in .

[0018] The pressure sensor can upload data to the control system via WiFi. The control system displays relevant data and a pressure cloud map. The user can determine whether the bottom surface of the laser transmitter is completely in contact with the screen based on the pressure cloud map.

[0019] The preferred laser transmitter is as follows Figure 2 shown.

[0020] Step 2) Install the laser receiver with a flexible film pressure sensor on the bottom surface on the detection device, and similarly monitor the measurement value of the pressure sensor through the control system to ensure that the bottom surface of the laser receiver is completely in contact with the detection device, using the same monitoring method as above.

[0021] The preferred laser receiver is as follows Figure 2 shown.

[0022] Step 3) Input the viewing angle of the screen specified by the manufacturer of the electronic rearview mirror into the control system software, and the control system adjusts the emission angle of the laser transmitter according to the viewing angle, such as Figure 4 As shown in θ and Φ.

[0023] Step 4) Adjust the position of the detection device until the laser receiver on it receives the laser emitted by the laser transmitter, such as Figure 4 As shown at point P in the figure, the automobile electronic rearview mirror is then inspected at this position by the inspection equipment.

[0024] Based on the viewing angle requirements of automotive electronic rearview mirror manufacturers, this method cleverly utilizes a laser transmitter and receiver to quickly and accurately position the testing equipment, facilitating subsequent testing of automotive electronic rearview mirrors in laboratories. The method is applicable to testing all types of commercially available automotive electronic rearview mirrors and offers significant application value, including simple operation, minimal error due to laser alignment, and intuitive viewing of the viewing direction line through laser display.

Claims

1. A method for detecting an automotive electronic rearview mirror, characterized in that: The steps include: 1) Installing a laser transmitter with a flexible film pressure sensor mounted on the bottom surface on the screen of the monitor of the automotive electronic rearview mirror, and monitoring the measured value of the pressure sensor through a control system to ensure that the bottom surface of the laser transmitter is completely in contact with the screen; 2) installing a laser receiver having a flexible film pressure sensor mounted on the bottom surface on the detection device, and also monitoring the measured value of the pressure sensor through the control system to ensure that the bottom surface of the laser receiver is completely in contact with the detection device; 3) adjusting the emission angle of the laser transmitter through the control system according to the viewing angle of the screen specified by the manufacturer of the automotive electronic rearview mirror; 4) Adjust the position of the detection device until the laser receiver on it receives the laser emitted by the laser transmitter, and then detect the automobile electronic rearview mirror at this position through the detection device.

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