JPS595906A - System for judging and displaying gap at vehicle door - Google Patents

Abstract

PURPOSE:To perform highly accurate measurement, by judging and displaying the gap at a door part by such a means, by which controlled data is recorded by a printer through a judgment display panel, a speaker, or a personal computer. CONSTITUTION:When a photoelectric switch 3 is actuated, light is irradiated on the side surface of a vehicle 1 from a line sensor camera 2, which is provided at the side of the vehicle 1. The reflected light from the vehicle 1 is received by the line sensor camera 2 again and sent to a data processor 4. Said data signal is controlled by a system computer 5. A gap 10a at a door part 10 is judged and displayed by such a means, by which the controlled data is recorded by a printer 9 through a judgement display panel 6, a speaker 7, or personal computer 8. Since an image brightness pattern is compared with a reference value and whether it is correct or not is judged, highly accurate measurement can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle door gap determination/display system that determines and displays whether or not the door gap is within specified dimensions in a quality control process on an automobile assembly line.

In general, quality control workers on the final assembly line of automobiles
In order to judge the gap between doors, a scale or gauge is applied to perform a visual quality inspection, but this method has the drawbacks of poor workability and easy measurement errors as it is done manually by the inspector. be.

This invention was made in view of the above-mentioned circumstances, and it is designed to use a line sensor camera, etc., to optically measure the gaps in ()'a, to measure the brightness/darkness and turn of the entire data processing device using images. The present invention provides a nine-vehicle door gap determination/display system that is configured to compare with a standard value and display it via a system computer.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a schematic configuration diagram of the system according to this invention69,
A two-in sensor camera 2 is installed on the side of the running line of the vehicle 1, and when a photoelectric switch 3 is activated, light from the line sensor camera 2 is irradiated onto the side of the vehicle 1. The reflected light from the vehicle 1 is again received by the line sensor camera 2 and sent as a video signal to the data processing unit @4, and the output signal processed here is sent to the system computer 5 for control. The numerical value is digitally displayed on the judgment display board 6, the quality status and down payment are announced through the audio speaker 7, or the data is processed by the computer 8, displayed on the cathode ray tube, and recorded by the printer 9 as necessary. It is meant to be taken out after being sipped.

Here, as shown in FIG. 2, the line sensor camera 2
The light source emitted from the door 10 shines brightly at the door 10 of the vehicle 1, but it is too dark to reflect light at the gap 10a, creating a light and dark pattern corresponding to the thickness of the gap 10a as shown in FIG.

In addition, the light source should be white or daylight colored and as bright as possible.For example, we used a 500W light source with daylight color so that the image of the light source would appear on the measurement site, so it would be easy to use even if the car body is black. can be measured.

FIG. 4 is a front view of the judgment display board 6 that digitally displays numerical values, and is an example in which the signals from the system computer 5 are displayed using LEDs (separately 7 segments on the left and right sides of the vehicle 1). If a gap larger than a predetermined set value is detected, an NG display is performed.

Note that the line sensor camera 2 according to the present invention is installed on both the left and right sides of the vehicle 1, and detects the gap between each door.
This is what is displayed, and vehicle 1 is a 2-door type,
Even if it is a 4-door type, the installation of the line sensor camera 2 corresponds to each one.

As described in detail above, the vehicle door gap determination display system according to the present invention is configured to optically measure the door gap without using a scale or r-gear as in the conventional example. There is no measurement error and highly accurate measurement is possible because the brightness and darkness pattern from the video is compared with all standard values to determine whether it is correct or not.

Therefore, labor can be reduced, such as by automating the quality control process on the automobile assembly line.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of a system according to the present invention, and FIG.
FIG. 3 is an explanatory diagram showing an example of displaying a bright and dark pattern according to the invention, and FIG. 4 is an explanatory diagram showing an example of data display according to the invention. l... Vehicle, 2... Line sensor camera, 3...
Photoelectric switch, 4... Data processing device, 5... System computer, 6... Judgment display board, 7... Audio speaker, 8... Personal computer, 9... Glinter, 10
...Door part, 1oa...gap. Patent applicant Mitsubishi Motors Corporation Sub-agent Patent attorney Hide Sato 5-

Claims (1)

[Claims] In the quality control process of determining the door gap of a car, light is emitted from a line sensor camera installed on the side of the vehicle, and the reflected light from the vehicle is received again by the line sensor camera and sent to a data processing device. The vehicle door is configured to determine and display the door gap by means such as controlling the entire signal system via a computer and recording it on a printer via a determination display board, an audio speaker, or a computer. Gap judgment/display system.