Illuminating device brightness and chromaticity accurate detection and evaluation system
By designing the luminance chromaticity accuracy detection and evaluation system of lighting devices, and using the motor to drive the coordination of the bidirectional screw and the bump groove, the precise detection of the car lights in the motion state is achieved, solving the problem of low detection efficiency and inability to detect multiple lights at the same time in the prior art, significantly improving the detection accuracy and efficiency.
Patent Information
- Application Number
- CN202411844484.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2044-12-16
AI Technical Summary
The existing automotive headlight brightness detection device cannot effectively detect the light intensity of different areas of the headlights in the motion state, and the detection efficiency is low, so multiple headlights cannot be detected at the same time.
A lighting device brightness chromaticity accuracy detection and evaluation system is designed, including a system detection framework and simulation detection module. The motor drives the bidirectional screw to rotate, so that the moving seat moves horizontally, and drives the lamp to be detected on the mount to move simultaneously; the angle of the mount is changed by the coordination of bumps and grooves, and the lighting angle of the lamp is changed; the setting of multiple detection boxes allows multiple lamps to be detected simultaneously.
Accurate detection of the light intensity of different areas of car headlights in motion is achieved, the detection efficiency is improved, multiple lamps can be detected simultaneously, and the detection accuracy and efficiency are significantly improved.
Smart Images

Figure CN119666330A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of lighting device detection, and in particular to a system for accurately detecting and evaluating brightness and chromaticity of a lighting device. Background Art
[0002] Lighting devices are key components that realize efficient, comfortable and beautiful lighting environment by redistributing the light flux emitted by light sources according to people's requirements for lighting quality. They usually include light sources, optical devices that control the direction of light, components necessary for fixing and protecting bulbs and connecting power supplies, as well as parts for decoration, adjustment and installation. Lighting devices can be classified according to different standards. For example, they can be divided into LED lighting devices and fluorescent lighting devices according to the type of light source; they can be divided into lighting fixtures, dimmers, switches, etc. according to their functions. Commonly used ones include car lights and bulbs.
[0003] Automobile lights are used to ensure that the requirements for the lighting intensity of the illuminated area can be met during nighttime driving of the automobile. Therefore, it is necessary to perform brightness detection on the produced lights. In the prior art, the automobile light brightness detection device detects the brightness of the light emitted by the light through a photosensitive detection device. A moving device is provided on the upper end of the photosensitive detection device, and the photosensitive detection device is driven by the moving device to detect the light intensity of the light at different positions. However, this technology is not suitable for increasing the detection range of the light brightness by moving the photosensitive detection device, because the light is in motion when working. Only by detecting the light intensity of different areas in the motion state of the light can the detection result of the light be guaranteed. Moreover, only a single light can be detected at the same time, and its detection efficiency is low. Therefore, we propose a precise detection and evaluation system for the brightness and chromaticity of lighting devices. Summary of the invention
[0004] The object of the present invention is to provide a system for accurately detecting and evaluating the brightness and chromaticity of a lighting device.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lighting device brightness and chromaticity precision detection system, comprising a system detection frame and a simulation detection module, the system detection frame comprising a base, a middle plate is fixedly connected to the middle of the top side of the base, a plurality of fixed plates are fixedly connected to the front and rear sides of the middle plate, a moving seat is slidably connected to the inner middle side of the fixed plate and the middle plate, a mounting seat is rotatably connected to the front and rear sides of the moving seat, the simulation detection module comprises a displacement mechanism, a fixing mechanism and an adjustment mechanism, the displacement mechanism is arranged on the front and rear sides of the middle plate, the fixing mechanism is arranged on the left and right sides of the mounting seat, and the adjustment mechanism is arranged on the upper and lower sides of the mounting seat;
[0006] The adjustment mechanism in the analog detection module includes two connecting blocks, both of which are located on the top side of the analog detection module, and the ends of the two connecting blocks that are close to each other are fixedly connected to the middle parts of the upper and lower sides of the mounting seat, and the ends of the two connecting blocks that are separated are rotatably connected to a rotating shaft, and one end of an adjusting rod is fixedly connected to the middle side of the outer wall of the rotating shaft, and the other end of the adjusting rod is fixedly connected to limiting blocks on the upper and lower sides, and two empty slots are provided on one side of the fixed plate, and the two empty slots are respectively located on the upper and lower sides of the mounting seat, and the other ends of the two adjusting rods slide inside the two empty slots, and limiting slots are provided on the upper and lower sides of the two empty slots, and the multiple limiting blocks are respectively arranged in a one-to-one correspondence with the multiple limiting slots.
[0007] As a further solution of the present invention: the adjustment mechanism in the simulation detection module also includes a plurality of protrusions and a plurality of grooves, and the plurality of protrusions and the plurality of grooves are respectively arranged on the front and rear sides of the simulation detection module, the two front protrusions are respectively fixedly connected to one side of the interior of the two front empty grooves, the two protrusions are cross-arranged, the two grooves are respectively arranged on the other side of the interior of the two empty grooves, and the two grooves and the two protrusions are cross-arranged with each other.
[0008] As a further solution of the present invention: the adjustment mechanism in the simulation detection module also includes multiple bidirectional screw rods, both ends of the multiple bidirectional screw rods are rotatably connected to the inner middle side of the system detection frame, the multiple bidirectional screw rods are respectively inserted into the interior of multiple movable seats, and the multiple bidirectional screw rods are fixed to each other. The left end of the bidirectional screw rod on the far left is rotatably connected to the inner wall of the middle plate, and the right end of the bidirectional screw rod on the far right is fixedly connected to the driving end of motor 1, and motor 1 is fixedly connected to the right side wall of the middle plate.
[0009] As a further solution of the present invention: the fixing mechanism in the simulation detection module includes a plurality of clamping members 1, and the plurality of clamping members 1 are respectively arranged on the front and rear sides of the system detection frame, one end of the clamping member 1 is fixedly connected to one side of the outer wall of the mounting seat, and the other side of the outer wall of the mounting seat is slidably connected with a clamping member 2, one end of the clamping member 2 is fixedly connected to a moving rod, and the top outer wall of the moving rod is threadedly connected with a fastening nut, and the fastening nut is located on the top side of the mounting seat.
[0010] As a further solution of the present invention: the displacement mechanism in the simulation detection module includes a plurality of sliders, and the plurality of sliders are respectively slidably connected to the front and rear ends of the bottom side of the system detection frame, a sliding rod is slidably connected between the two sliders on the left and right sides, a bidirectional threaded rod is arranged between the two sliders on the middle side, one end of the bidirectional threaded rod is fixedly connected to the driving end of motor 2, the motor 2 is fixedly connected to the inner wall of the middle plate, the top sides of the plurality of sliders are fixedly connected to a fixing frame, and a detection box is arranged inside the fixing frame.
[0011] As a further solution of the present invention: the displacement mechanism in the simulation detection module also includes a plurality of auxiliary lights, and the plurality of auxiliary lights are respectively fixedly connected to the left and right sides of the inside of the detection box, and a warning light is fixedly connected to one side of the top of the detection box.
[0012] As a further solution of the present invention: a plurality of slide grooves are provided on the inner top side of the middle plate, the plurality of slide grooves are arranged correspondingly to the plurality of sliders, and rubber pads are arranged around one side of the plurality of fixed plates close to the detection box.
[0013] In addition, the present invention also provides an evaluation system for accurate detection of brightness and chromaticity of lighting devices, including:
[0014] Power supply unit: provides power for accurate detection of the brightness and chromaticity of lamps;
[0015] Brightness detection unit: used to collect the lighting brightness of the lamp, convert the light signal into an electrical signal, and send it to the control unit after processing;
[0016] Chroma detection unit: used to collect the lighting chromaticity of the lamp, convert the light signal into an electrical signal, and send it to the control unit after processing;
[0017] Control unit: receives the signals output by the brightness detection unit and the chromaticity detection unit, performs algorithms and logic operations, and sends the results to the display unit;
[0018] Display unit: receives the final result sent by the control unit and displays the final result.
[0019] As a further solution of the present invention: the brightness detection unit includes a brightness detection probe, a signal converter, a signal processing circuit, and a communication interface. The brightness detection probe is used to detect and collect light signals. The signal converter is used to convert the collected light signals into electrical signals. The signal processing circuit is used to amplify, filter and convert the electrical signals output by the signal converter, and transmit them to the control unit. The chromaticity detection unit includes a photoelectric detection probe, a spectrum analyzer, and an analog-to-digital converter 2. The photoelectric detection probe is used to detect and collect light signals and convert them into electrical signals. The spectrum analyzer is used to analyze the electrical signals output by the photoelectric detection probe. The analog-to-digital converter 2 is used to convert the analog signals output by the spectrum analyzer into digital signals and transmit them to the control unit. The display unit includes a liquid crystal display screen, and the liquid crystal display screen is used to display the final detection results.
[0020] As a further solution of the present invention: the signal processing circuit includes an amplifier, a filter, and an analog-to-digital converter. The amplifier is used to amplify the electrical signal output by the signal converter, the filter is used to filter the electrical signal, and the analog-to-digital converter is used to convert the analog signal output by the signal processing circuit into a digital signal and transmit it to the control unit.
[0021] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:
[0022] 1. The present invention drives multiple bidirectional screws to rotate by starting a motor, so that the corresponding moving seat can move horizontally. Since the moving seat is connected to two mounting seats, and the mounting seats are provided with fixed lamps to be detected, when the corresponding moving seat moves, the lamps to be detected are driven to move horizontally synchronously, so that the brightness and chromaticity detection of different positions of the lamps can be realized, which is closer to the actual application scene of the lamps, and the brightness and chromaticity detection accuracy is high;
[0023] 2. The present invention adopts the matching arrangement of the corresponding protrusions and the grooves, so that the mounting seat changes the outward extension length of the corresponding adjustment rod while the mounting seat moves horizontally, so that the angle of the connecting block and the mounting seat connected thereto changes, thereby changing the lighting angle of the lamp to be detected on the mounting seat, further approaching the actual application scene of the lamp, and effectively improving the accuracy of brightness and chromaticity detection;
[0024] 3. The present invention provides multiple detection boxes so that the device can detect multiple lamps at the same time, effectively improving the detection efficiency of the device. The corresponding fixing frames can be disassembled and assembled by bolts so that the corresponding detection boxes can be removed separately, which can facilitate the maintenance and replacement of a single detection box.
[0025] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is an overall schematic diagram of an embodiment of the present invention;
[0027] Figure 2 It is a schematic side view of the whole embodiment of the present invention;
[0028] Figure 3 Schematic diagram of the position of the bidirectional threaded rod in an embodiment of the present invention;
[0029] Figure 4 This is a schematic diagram of the position of the auxiliary lamp in an embodiment of the present invention;
[0030] Figure 5Schematic diagram of the position of the bidirectional screw rod in an embodiment of the present invention;
[0031] Figure 6 This is a schematic diagram of the position of the empty slot in an embodiment of the present invention;
[0032] Figure 7 for Figure 6 The enlarged schematic diagram of point A in the middle;
[0033] Figure 8 This is a schematic diagram of the position of the limit block in an embodiment of the present invention;
[0034] Fig. 9 This is a schematic diagram of the overall system architecture in an embodiment of the present invention;
[0035] Fig.10 Schematic diagram of the brightness detection unit structure in an embodiment of the present invention;
[0036] Fig.11 A schematic diagram of a signal processing circuit architecture in an embodiment of the present invention;
[0037] Fig.12 Schematic diagram of the chromaticity detection unit architecture in an embodiment of the present invention;
[0038] Fig.13 FIG. 1 is a schematic diagram of a display unit structure in an embodiment of the present invention.
[0039] In the figure: 1. base; 2. middle plate; 3. fixed plate; 4. movable seat; 5. mounting seat; 6. connecting block; 7. rotating shaft; 8. adjusting rod; 9. limiting block; 10. limiting groove; 11. empty groove; 12. protrusion; 13. groove; 14. bidirectional screw rod; 15. motor 1; 16. rubber pad; 17. clamping part 1; 18. clamping part 2; 19. movable rod; 20. fastening nut; 21. slider; 22. slide rod; 23. bidirectional threaded rod; 24. motor 2; 25. fixing bracket; 26. detection box; 27. auxiliary light; 28. brightness detection probe; 29. photoelectric detection probe; 30. warning light; 31. slide groove. DETAILED DESCRIPTION
[0040] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.
[0041] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0042] Please refer to the attached Figure 1 -Attached Figure 8The present invention provides a precise detection system for brightness and chromaticity of a lighting device, including a system detection framework and a simulation detection module. The system detection framework includes a base 1, a middle plate 2 is fixedly connected to the middle of the top side of the base 1, and a plurality of fixed plates 3 are fixedly connected to the front and rear sides of the middle plate 2. A moving seat 4 is slidably connected to the fixed plate 3 and the inner middle side of the middle plate 2, and a mounting seat 5 is rotatably connected to the front and rear sides of the moving seat 4. The simulation detection module includes a displacement mechanism, a fixing mechanism and an adjustment mechanism. The displacement mechanism is arranged on the front and rear sides of the middle plate 2, the fixing mechanism is arranged on the left and right sides of the mounting seat 5, and the adjustment mechanism is arranged on the upper and lower sides of the mounting seat 5.
[0043] The adjustment mechanism in the analog detection module includes two connecting blocks 6, both of which are located on the top side of the analog detection module, and the adjacent ends of the two connecting blocks 6 are respectively fixedly connected to the middle of the upper and lower sides of the mounting seat 5, and the separated ends of the two connecting blocks 6 are rotatably connected to the rotating shaft 7, and one end of the adjusting rod 8 is fixedly connected to the middle side of the outer wall of the rotating shaft 7, and the other end of the adjusting rod 8 is fixedly connected to the limiting blocks 9 on the upper and lower sides. Two empty grooves 11 are provided on one side of the fixed plate 3, and the two empty grooves 11 are respectively located on the upper and lower sides of the mounting seat 5, and the other ends of the two adjusting rods 8 slide inside the two empty grooves 11 respectively, and limiting grooves 10 are provided on the upper and lower sides of the two empty grooves 11, and multiple limiting blocks 9 are respectively arranged in a one-to-one correspondence with multiple limiting grooves 10.
[0044] In the first embodiment, the adjustment mechanism in the simulation detection module also includes a plurality of protrusions 12 and a plurality of grooves 13, and the plurality of protrusions 12 and the plurality of grooves 13 are respectively arranged on the front and rear sides of the simulation detection module, and the two front protrusions 12 are respectively fixedly connected to one side of the inside of the two front empty grooves 11, and the two protrusions 12 are cross-arranged, and the two grooves 13 are respectively arranged on the other side of the inside of the two empty grooves 11, and the two grooves 13 and the two protrusions 12 are cross-arranged with each other, and the adjustment mechanism in the simulation detection module also includes a plurality of bidirectional screw rods 14, and both ends of the plurality of bidirectional screw rods 14 are rotatably connected. Connected to the inner middle side of the system detection frame, multiple bidirectional screw rods 14 are respectively arranged inside the multiple moving seats 4, and the multiple bidirectional screw rods 14 are fixed to each other. The left end of the leftmost bidirectional screw rod 14 is rotatably connected to the inner wall of the middle plate 2, and the right end of the rightmost bidirectional screw rod 14 is fixedly connected to the driving end of the motor 15, and the motor 15 is fixedly connected to the right side wall of the middle plate 2. A plurality of slide grooves 31 are opened on the inner top side of the middle plate 2, and the plurality of slide grooves 31 are correspondingly arranged with the plurality of sliders 21. A rubber pad 16 is arranged around one side of the plurality of fixed plates 3 close to the detection box 26;
[0045] Specifically, by starting the motor 15 to drive the multiple bidirectional screw rods 14 to rotate, the lamp to be detected fixed on the mounting seat 5 is made to move back and forth synchronously. During the movement, the two groups of protrusions 12 and grooves 13 arranged in the empty slot 11 are used to change the outward extension length of the corresponding adjustment rod 8, so that the angle of the mounting seat 5 connected thereto is changed, and then the lighting angle and position of the lamp to be detected are changed synchronously, which is convenient for detection.
[0046] In the second embodiment, the fixing mechanism in the simulation detection module includes a plurality of clamping members 17, which are respectively arranged on the front and rear sides of the system detection frame, one end of the clamping member 17 is fixedly connected to one side of the outer wall of the mounting seat 5, and the other side of the outer wall of the mounting seat 5 is slidably connected with a clamping member 2 18, one end of the clamping member 2 18 is fixedly connected with a moving rod 19, and the top outer wall of the moving rod 19 is threadedly connected with a fastening nut 20, and the fastening nut 20 is located on the top side of the mounting seat 5;
[0047] Specifically, multiple lamps to be tested are placed between the clamping piece 17 and the clamping piece 2 18 on the corresponding mounting seat 5, and the clamping piece 2 18 is disengaged from the surface of the mounting seat 5 by rotating the fastening nut 20. Then, the clamping piece 2 18 is moved to fix the lamps to be tested, and the fastening nut 20 is rotated in the opposite direction to make it fit with the surface of the mounting seat 5 to complete the fixation.
[0048] Embodiment 3: The displacement mechanism in the simulation detection module includes a plurality of sliders 21, which are respectively slidably connected to the front and rear ends of the bottom side of the system detection frame, and a slide bar 22 is slidably connected between the two sliders 21 on the left and right sides, and a bidirectional threaded rod 23 is provided between the two sliders 21 on the middle side, and one end of the bidirectional threaded rod 23 is fixedly connected to the driving end of the second motor 24, and the second motor 24 is fixedly connected to the inner wall of the middle plate 2, and the top sides of the plurality of sliders 21 are fixedly connected to a fixing frame 25, and a detection box 26 is provided inside the fixing frame 25. The displacement mechanism in the simulation detection module also includes a plurality of auxiliary lights 27, and the plurality of auxiliary lights 27 are respectively fixedly connected to the left and right sides of the inside of the detection box 26, and a warning light 30 is fixedly connected to one side of the top of the detection box 26;
[0049] Specifically, by starting the second motor 24 to drive the bidirectional threaded rod 23 to rotate, the two sliders 21 on its surface move toward each other. Since the slider 21 is connected to the fixed frame 25, and the fixed frame 25 is connected to the detection box 26, the slider 21 drives the detection box 26 to move synchronously while moving, so that the corresponding detection box 26 moves toward the corresponding mounting seat 5.
[0050] The present invention also provides an evaluation system for accurate detection of brightness and chromaticity of lighting devices, comprising:
[0051] Power supply unit: provides power for accurate detection of the brightness and chromaticity of lamps;
[0052] Brightness detection unit: used to collect the lighting brightness of the lamp, convert the light signal into an electrical signal, and send it to the control unit after processing;
[0053] Chroma detection unit: used to collect the lighting chromaticity of the lamp, convert the light signal into an electrical signal, and send it to the control unit after processing;
[0054] Control unit: receives the signals output by the brightness detection unit and the chromaticity detection unit, performs algorithms and logic operations, and sends the results to the display unit;
[0055] Display unit: receives the final result sent by the control unit and displays the final result.
[0056] Example 4, please refer to the attached Fig. 9 -Attached Fig.13 The brightness detection unit includes a brightness detection probe 28, a signal converter, a signal processing circuit, and a communication interface. The brightness detection probe 28 is used to detect and collect light signals. The signal converter is used to convert the collected light signals into electrical signals. The signal processing circuit is used to amplify, filter and convert the electrical signals output by the signal converter, and transmit them to the control unit. The chromaticity detection unit includes a photoelectric detection probe 29, a spectrum analyzer, and an analog-to-digital converter 2. The photoelectric detection probe 29 is used to detect and collect light signals and convert them into electrical signals. The spectrum analyzer is used to analyze the electrical signals output by the photoelectric detection probe 29. The analog-to-digital converter 2 is used to convert the analog signals output by the spectrum analyzer into digital signals and transmit them to the control unit. The display unit includes a liquid crystal display screen, and the liquid crystal display screen is used to display the final detection results. The signal processing circuit includes an amplifier, a filter, and an analog-to-digital converter 1. The amplifier is used to amplify the electrical signals output by the signal converter. The filter is used to filter the electrical signals. The analog-to-digital converter 1 is used to convert the analog signals output by the signal processing circuit into digital signals and transmit them to the control unit.
[0057] Specifically, the brightness detection probe 28 and the photoelectric detection probe 29 are used to detect the illumination brightness and chromaticity of the lamp to be detected, and the control unit determines whether it is qualified and displays the result on the liquid crystal display screen.
[0058] Working principle:
[0059] First, multiple lamps to be tested are placed between the clamping piece 17 and the clamping piece 2 18 on the corresponding mounting seat 5, and the clamping piece 2 18 is separated from the surface of the mounting seat 5 by rotating the fastening nut 20, and then the clamping piece 2 18 is moved to fix the lamps to be tested, and the fastening nut 20 is rotated in the opposite direction to make it fit with the surface of the mounting seat 5 to complete the fixation;
[0060] By starting the second motor 24, the bidirectional threaded rod 23 is driven to rotate, so that the two sliders 21 on the surface thereof move toward each other. Since the slider 21 is connected to the fixing frame 25, and the fixing frame 25 is connected to the detection box 26, the slider 21 drives the detection box 26 to move synchronously while moving, so that the corresponding detection box 26 moves toward the corresponding mounting seat 5 until it is pressed and fitted with the rubber pad 16. At this time, there is no light in the detection box 26. At this time, the auxiliary lamp 27 is started, and the absorption calibration is performed on it and the output change is monitored. After it is turned off, the power supply unit is used to provide power to the lamp to be detected, and the detection begins;
[0061] By starting the motor 15, the multiple bidirectional screw rods 14 are driven to rotate. Since the multiple bidirectional screw rods 14 are each provided with a corresponding moving seat 4, and both ends of the moving seat 4 are provided with a mounting seat 5, when the bidirectional screw rod 14 rotates, it drives the corresponding moving seat 4 to move back and forth horizontally, so that the lamp to be detected fixed on the mounting seat 5 moves back and forth synchronously. In the process of movement, since the upper and lower sides of the mounting seat 5 are provided with connecting blocks 6, and the connecting blocks 6 are connected to the adjusting rod 8 through the rotating shaft 7, when the mounting seat 5 moves, the adjusting rod 8 is driven to move back and forth along the empty slot 11. The two groups of protrusions 12 and grooves 13 arranged in the empty slot 11 change the outward extension length of the corresponding adjustment rod 8, that is, when the upper adjustment rod 8 passes through the surface of the protrusion 12, the upper adjustment rod 8 protrudes outward due to the outward arc-shaped setting of the surface of the protrusion 12, and when the lower adjustment rod 8 passes through the surface of the groove 13, the lower adjustment rod 8 is recessed inward due to the inward arc-shaped setting of the surface of the groove 13. The upper and lower adjustment rods 8 cooperate to change the angle of the mounting seat 5 connected thereto, thereby changing the lighting angle and position of the lamp to be detected synchronously, which is convenient for detection;
[0062] When the lamp to be detected is moving, the brightness detection probe 28 and the photoelectric detection probe 29 are used to detect the illumination brightness and chromaticity of the lamp to be detected; the brightness detection is detected by the brightness detection probe 28, and the detected light signal is transmitted to the signal converter, and the signal converter converts the light signal into an electrical signal, which is transmitted to the signal processing circuit, and the electrical signal output by the signal converter is amplified, filtered and converted by an amplifier, a filter and an analog-to-digital converter, and the analog signal output by the signal processing circuit is converted into a digital signal and transmitted to the control unit, and the control unit performs corresponding algorithms and logic operations to achieve accurate measurement and control of the brightness of the headlights, and finally displays the measurement results and related information of the brightness of the headlights on the LCD screen; the chromaticity detection is detected by the photoelectric detection probe 29, and the detected The optical signal is converted into an electrical signal and then transmitted to the spectrum analyzer. The spectrum analyzer analyzes the electrical signal output by the photoelectric detection probe 29 to obtain the spectrum composition of the light emitted by the headlight. By measuring the light intensity at different wavelengths, the spectrum distribution curve is obtained, and then the color wavelength and other parameters are determined. The analog signal output by the spectrum analyzer is converted into a digital signal by the analog-to-digital converter 2 and transmitted to the control unit. The control unit performs the algorithm and logic operation to determine whether the chromaticity of the headlight meets the specified standard, and outputs the corresponding test results to be displayed on the liquid crystal display. The color of the prompt light 30 on the detection box 26 is different according to the different results. If the result is qualified, the prompt light 30 is a permanent green light. If the result is unqualified, the prompt light 30 is a flashing red light, which is convenient for the staff to mark the unqualified lamps to avoid confusion.
[0063] After the detection is completed, start the motor 24 to rotate in the opposite direction, so that the multiple detection boxes 26 on both sides move toward each other and away from the mounting seat 5, so that the lamp to be detected leaks out. At this time, loosen the corresponding clamping piece 2 18 to remove the corresponding lamp to be detected for next use. At this point, the entire workflow ends.
[0064] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.
[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.
[0066] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.
[0067] It is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the changes still fall within the protection scope of the invention.
Claims
1. A lighting device brightness and chromaticity precision detection system, comprising a system detection framework and a simulation detection module, wherein the system detection framework comprises a base (1), characterized in that: A middle plate (2) is fixedly connected to the middle of the top side of the base (1); a plurality of fixed plates (3) are fixedly connected to the front and rear sides of the middle plate (2); a movable seat (4) is slidably connected to the inner middle side of the fixed plate (3) and the middle plate (2); a mounting seat (5) is rotatably connected to the front and rear sides of the movable seat (4); the analog detection module comprises a displacement mechanism, a fixing mechanism and an adjustment mechanism; the displacement mechanism is arranged on the front and rear sides of the middle plate (2); the fixing mechanism is arranged on the left and right sides of the mounting seat (5); and the adjustment mechanism is arranged on the upper and lower sides of the mounting seat (5); The adjustment mechanism in the simulation detection module comprises two connecting blocks (6), the two connecting blocks (6) are both located on the top side of the simulation detection module, the adjacent ends of the two connecting blocks (6) are respectively fixedly connected to the middle of the upper and lower sides of the mounting seat (5), the separated ends of the two connecting blocks (6) are rotatably connected to a rotating shaft (7), one end of an adjusting rod (8) is fixedly connected to the middle side of the outer wall of the rotating shaft (7), the other end of the adjusting rod (8) is fixedly connected to a limiting block (9) on both the upper and lower sides, one side of the fixing plate (3) is provided with two empty slots (11), the two empty slots (11) are respectively located on the upper and lower sides of the mounting seat (5), the other ends of the two adjusting rods (8) slide inside the two empty slots (11), the upper and lower sides of the two empty slots (11) are provided with limiting slots (10), and the plurality of limiting blocks (9) are respectively arranged in a one-to-one correspondence with the plurality of limiting slots (10).
2. The lighting device brightness and chromaticity accurate detection system according to claim 1, characterized in that: The adjustment mechanism in the simulation detection module further comprises a plurality of protrusions (12) and a plurality of grooves (13), wherein the plurality of protrusions (12) and the plurality of grooves (13) are respectively arranged on the front and rear sides of the simulation detection module, wherein the two protrusions (12) on the front side are respectively fixedly connected to one side of the interior of the two empty grooves (11) on the front side, wherein the two protrusions (12) are cross-arranged, and the two grooves (13) are respectively arranged on the other side of the interior of the two empty grooves (11), and the two grooves (13) and the two protrusions (12) are cross-arranged with each other.
3. The lighting device brightness and chromaticity accurate detection system according to claim 1, characterized in that: The adjustment mechanism in the simulation detection module also includes a plurality of bidirectional screw rods (14), both ends of which are rotatably connected to the inner middle side of the system detection frame, and the plurality of bidirectional screw rods (14) are respectively inserted into the interior of a plurality of movable seats (4). The plurality of bidirectional screw rods (14) are fixed to each other, the left end of the leftmost bidirectional screw rod (14) is rotatably connected to the inner wall of the middle plate (2), and the right end of the rightmost bidirectional screw rod (14) is fixedly connected to the driving end of motor one (15), and the motor one (15) is fixedly connected to the right side wall of the middle plate (2).
4. The lighting device brightness and chromaticity accurate detection system according to claim 1, characterized in that: The fixing mechanism in the simulation detection module includes a plurality of clamping members (17), and the plurality of clamping members (17) are respectively arranged on the front and rear sides of the system detection frame, one end of the clamping member (17) is fixedly connected to one side of the outer wall of the mounting seat (5), and the other side of the outer wall of the mounting seat (5) is slidably connected with a clamping member (18), one end of the clamping member (18) is fixedly connected with a moving rod (19), and the top outer wall of the moving rod (19) is threadedly connected with a fastening nut (20), and the fastening nut (20) is located on the top side of the mounting seat (5).
5. The lighting device brightness and chromaticity accurate detection system according to claim 1, characterized in that: The displacement mechanism in the simulation detection module comprises a plurality of sliders (21), the plurality of sliders (21) are respectively slidably connected to the front and rear ends of the bottom side of the system detection frame, a sliding rod (22) is slidably connected between the two sliders (21) on the left and right sides, a bidirectional threaded rod (23) is provided between the two sliders (21) on the middle side, one end of the bidirectional threaded rod (23) is fixedly connected to the driving end of motor 2 (24), the motor 2 (24) is fixedly connected to the inner side wall of the middle plate (2), the top sides of the plurality of sliders (21) are fixedly connected to a fixing frame (25), and a detection box (26) is provided inside the fixing frame (25).
6. The lighting device brightness and chromaticity accurate detection system according to claim 5, characterized in that: The displacement mechanism in the simulation detection module further comprises a plurality of auxiliary lights (27), wherein the plurality of auxiliary lights (27) are respectively fixedly connected to the left and right sides of the inside of the detection box (26), and a warning light (30) is fixedly connected to one side of the top of the detection box (26).
7. The lighting device brightness and chromaticity accurate detection system according to claim 1, characterized in that: A plurality of slide grooves (31) are provided on the inner top side of the middle plate (2), and the plurality of slide grooves (31) are arranged corresponding to the plurality of sliders (21). Rubber pads (16) are arranged around one side of the plurality of fixed plates (3) close to the detection box (26).
8. An evaluation system applicable to the lighting device brightness and chromaticity precision detection system according to any one of claims 1 to 7, characterized in that: include: Power supply unit: provides power for accurate detection of the brightness and chromaticity of lamps; Brightness detection unit: used to collect the lighting brightness of the lamp, convert the light signal into an electrical signal, and send it to the control unit after processing; Chroma detection unit: used to collect the lighting chromaticity of the lamp, convert the light signal into an electrical signal, and send it to the control unit after processing; Control unit: receives the signals output by the brightness detection unit and the chromaticity detection unit, performs algorithms and logic operations, and sends the results to the display unit; Display unit: receives the final result sent by the control unit and displays the final result.
9. The evaluation system for accurate detection of brightness and chromaticity of lighting devices according to claim 8, characterized in that: The brightness detection unit comprises a brightness detection probe (28), a signal converter, a signal processing circuit, and a communication interface. The brightness detection probe (28) is used to detect and collect light signals. The signal converter is used to convert the collected light signals into electrical signals. The signal processing circuit is used to amplify, filter and convert the electrical signals output by the signal converter, and transmit them to the control unit. The chromaticity detection unit comprises a photoelectric detection probe (29), a spectrum analyzer, and a second analog-to-digital converter. The photoelectric detection probe (29) is used to detect and collect light signals and convert them into electrical signals. The spectrum analyzer is used to analyze the electrical signals output by the photoelectric detection probe (29). The second analog-to-digital converter is used to convert the analog signals output by the spectrum analyzer into digital signals, and transmit them to the control unit. The display unit comprises a liquid crystal display screen, and the liquid crystal display screen is used to display the final detection result.
10. The evaluation system for accurate detection of brightness and chromaticity of lighting devices according to claim 9, characterized in that: The signal processing circuit includes an amplifier, a filter, and an analog-to-digital converter. The amplifier is used to amplify the electrical signal output by the signal converter, the filter is used to filter the electrical signal, and the analog-to-digital converter is used to convert the analog signal output by the signal processing circuit into a digital signal and transmit it to the control unit.
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