KR-20260067833-A - SYSTEM FOR MEASURING DISPLACEMENT

Abstract

The present specification relates to an embodiment of a measurement system comprising: a shooting unit positioned perpendicular to a measurement target and photographing said measurement target; a reflecting unit positioned below the shooting unit and reflecting incident measurement light onto said measurement target; an irradiating unit positioned horizontally to the reflecting unit and irradiating said measurement light onto said reflecting unit; and a driving unit positioned on one side of the irradiating unit and moving the position of said irradiating unit along one or more axes orthogonal to the irradiating axis through which the measurement light is irradiated.

Inventors

• 박종찬
• 강창우
• 여인택

Assignees

• 엘지전자 주식회사

Dates

Publication Date

20260513

Application Date

20241106

Claims (12)

1. A shooting unit provided at a position perpendicular to the measurement target and capable of photographing the measurement target; A reflector provided at the lower part of the above-mentioned imaging unit for reflecting incident measurement light to the measurement target; An irradiation unit provided at a horizontal position to the reflection unit and irradiating the measurement light onto the reflection unit; A driving unit provided on one side of the above-mentioned irradiation unit and moving the position of the above-mentioned irradiation unit along one or more axes orthogonal to the irradiation axis where the measurement light is irradiated; and A measurement system characterized by including a control unit that generates a measurement result for the measurement target based on the shooting result of the above-mentioned shooting unit.
2. In Article 1, The above-mentioned reflective part is, A measurement system characterized by including a reflector positioned at a certain angle to a horizontal axis horizontal to the measurement target or a vertical axis perpendicular to the measurement target.
3. In Article 2, The above constant angle is, A measurement system characterized by an angle within the range of 40 to 50 degrees.
4. In Article 1, The above investigation department, A measurement system characterized by irradiating the measurement light vertically onto the reflection portion.
5. In Article 1, The above investigation department, A measurement system characterized by irradiating the measurement light onto the reflection unit while the position is moved by the driving unit.
6. In Article 1, The above driving unit is, A first driving unit that moves the position of the above-mentioned irradiation unit to a first axis orthogonal to the irradiation axis; and A measurement system characterized by including one or more of a second driving unit that moves the position of the above-mentioned investigation unit to a second axis orthogonal to the above-mentioned investigation axis and the first axis.
7. In Article 6, The above driving unit is, A measurement system characterized by moving the position of the above-mentioned investigation unit within a range from one side to the other side of each of the first driving unit and the second driving unit.
8. In Article 1, The above driving unit is, A measurement system characterized by moving the position of the irradiation unit while the irradiation unit irradiates the measurement light.
9. In Article 1, The above control unit is, A measurement system characterized by generating vision recognition results and displacement measurement results of the measurement target based on the above shooting results.
10. In Article 9, The above control unit is, A measurement system characterized by generating the vision recognition result based on the shooting result before or after the measurement light is irradiated.
11. In Article 9, The above control unit is, A measurement system characterized by controlling the irradiation unit and the driving unit so that the measurement light is reflected from the reflection unit and irradiated from one side to the other side of one or more axes of the measurement target, and generating the displacement measurement result based on the shooting result while the measurement light is irradiated.
12. In Article 1, The above control unit is, A measurement system characterized by measuring the amount of variation of a measurement target based on the measurement result before performing a specific process and the measurement result after performing the specific process.

Description

Measurement System {SYSTEM FOR MEASURING DISPLACEMENT} The present invention relates to a technology for measuring the displacement of a recognition object. High-precision measurement of early displays, LCDs, OLEDs, and module equipment was mostly achieved by measuring planes on a coordinate system through vision image analysis using optical systems; recently, however, the only measure required is to configure a separate unit that measures height using a laser displacement sensor to verify deviations in supplied materials. FIG. 1 illustrates an example of such prior art, showing a measuring device that analyzes a vision image by additionally providing an optical system (C) for capturing an image to a laser displacement sensor (L) for measuring displacement. These conventional measuring devices require separate configurations for the optical system section requiring vision recognition and the laser displacement sensor at the location requiring height measurement. Consequently, it was inevitably difficult to accurately determine the position due to difficulties in configuration caused by space constraints as well as limitations in verifying the measurement position of the laser displacement sensor. Furthermore, as the optical system was provided as an auxiliary component, it was impossible to change the vision recognition optical system in accordance with the diversification of materials, making it inevitably difficult to measure various types of materials. FIG. 1 is an illustrative diagram showing an example of a conventional measuring device. FIG. 2 is a configuration diagram of a measurement system according to an embodiment. FIG. 3 is a perspective view of a measuring device according to an embodiment. FIG. 4 is an exemplary diagram illustrating the concept of irradiation of measurement light of a measuring device according to an embodiment. FIG. 5 is an exemplary diagram illustrating the concept of irradiation of measurement light of a measuring device according to an embodiment. Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings; however, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of related known technology may obscure the essence of the embodiments disclosed in this specification, such detailed description will be omitted. In addition, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that all modifications, equivalents, and substitutions included within the concept and technical scope of the present invention are included. A measurement system (100) according to an embodiment includes a shooting unit (10), a reflection unit (20), an irradiation unit (30), a driving unit (40), and a control unit (50), as shown in FIG. 2. In the above-mentioned measurement system (100), the shooting unit (10), the reflection unit (20), the irradiation unit (30), and the driving unit (40) correspond to a measurement device for vision recognition and displacement measurement of a measurement target (T), and the control unit (50) corresponds to a control device for controlling the measurement device. The specific structure of the above-mentioned measuring device may be as shown in FIG. 3. In the above measurement system (100), the imaging unit (10) photographs the measurement target (T). The above-mentioned imaging unit (10) is provided at a position perpendicular to the measurement target (T) and images the measurement target (T). The above-mentioned imaging unit (10) includes a camera (11) and a lens (12) and can photograph the measurement target (T). The above-mentioned shooting unit (10) can photograph the measurement target (T) under the control of the control unit (50) when the measurement target (T) is positioned on the measurement stand. The above-mentioned shooting unit (10) can take a picture of the measurement target (T) and transmit the shooting result to the above-mentioned control unit (50). In the above measurement system (100), the reflector (20) reflects incident light to the measurement target (T). The above-mentioned reflector (20) is provided at the bottom of the above-mentioned shooting unit (10) and reflects the incident measurement light to the measurement target (T). Here, the measurement light may be a laser light irradiated from the irradiation unit (30) to measure the displacement of the measurement target (T). The above-mentioned reflector (20) may include a reflector (21) positioned at a certain angle to a horizontal axis horizontal to the measurement target (T) or a vertical axis perpendicular to the measurement target (T). The above reflector (21) can be positioned in the direction in which the measurement light is incident and in the direction toward the measure