Automatic intelligent detection diagnostic instrument for motor vehicle lighting system

By designing an automatic and intelligent motor vehicle lighting system detection and diagnostic instrument, using laser correction and motor-driven slider displacement, automatic alignment and multi-dimensional data acquisition is achieved, solving the problems of complex operation, insufficient accuracy and limitations of detection range in the prior art, and improving detection efficiency and accuracy.

CN119984768AInactive Publication Date: 2025-05-13LIAONING PROVINCIAL COLLEGE OF COMM
View PDF 9 Cites 0 Cited by

Patent Information

Application Number
CN202510174499.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-05-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing motor vehicle lighting system inspection equipment is complex in operation, insufficient accuracy and limited detection range, and cannot effectively solve the differences in lighting parameters and illumination angles of different models, making it difficult for the detection results to reflect the actual situation of vehicle lighting performance.

Method used

Design an automatic intelligent detection and diagnostic instrument for the lighting system of a motor vehicle, including a calibration device and a calibration device. By laser correction of the slide displacement driven by the transmitter and motor, automatic alignment and multi-dimensional data acquisition are realized, dynamically adjust the position of the detection device and the vehicle to ensure detection accuracy.

Benefits of technology

It realizes automated inspection, simplifies the operation process, improves detection efficiency and accuracy, adapts to the lighting inspection needs of various models, and solves the problems of complex operation, insufficient accuracy and limitations in the existing technology.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119984768A_ABST
    Figure CN119984768A_ABST
Patent Text Reader

Abstract

The invention discloses an automatic intelligent detection diagnostic instrument for a motor vehicle lighting system, which comprises a calibration device and a correction device, a base is assembled at the bottom of the calibration device, and the base and a symmetrical and flat mounting position of a to-be-detected vehicle are clamped and fixed; according to the automatic intelligent detection diagnostic apparatus for correcting the vehicle light irradiation range, when the automatic intelligent detection diagnostic apparatus is used, the left and right positions of the calibration device and the vehicle are mutually symmetrical, and after correction is completed, the calibration device and the correction device are connected with the vehicle to be detected, and the vehicle to be detected and the calibration device are connected with the vehicle to be detected. The lamplight of the to-be-detected vehicle is started, the lamplight receiver receives the lamplight, the lamplight detection result of the to-be-detected vehicle is detected according to the irradiation intensity and range of the lamplight, adjustment of the lamplight range of the vehicle is guided, and the problems that when an existing motor vehicle illumination system is corrected, the adjustment position is not accurate enough due to the fact that comparison equipment needs to be manually adjusted for measurement, and the adjustment precision is poor are effectively solved. And the calibration mode is troublesome to operate.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the field of motor vehicle lighting system correction, and in particular to an automatic intelligent detection and diagnosis instrument for motor vehicle lighting systems. Background Art

[0002] With the rapid growth of the number of motor vehicles, the performance of motor vehicle lighting systems is directly related to driving safety and road traffic management. Whether the illumination range and brightness of the headlights meet the requirements has become an important part of vehicle inspection. However, the existing motor vehicle lighting system inspection equipment has obvious shortcomings, especially in the calibration and inspection process.

[0003] Traditional motor vehicle lighting system inspection equipment usually relies on manual centering and fixed detection distances to meet inspection conditions during operation. This method requires the operator to gradually adjust the position and angle of the inspection device according to the vehicle width, light position and equipment detection range. First, the operator needs to use manual tools to measure the width of the vehicle and the specific position of the light, and then gradually move the inspection device to a suitable position, and manually adjust the horizontal and vertical directions of the equipment to ensure that the inspection device is aligned with the light axis of the car. This centering and fixing process is not only time-consuming and labor-intensive, but also prone to measurement and installation errors due to the operator's lack of experience, which directly affects the accuracy of the lighting detection results. In addition, since the manual adjustment process requires a high level of technical proficiency, the equipment operation is complex and highly dependent on the environment, and the detection efficiency and reliability are difficult to guarantee.

[0004] The existing technology generally uses a fixed distance for testing, but the parameters and illumination angles of the lights of different models are different, and the fixed distance testing method cannot fully consider these differences. Therefore, the test results are difficult to fully reflect the actual status of the vehicle's lighting performance and cannot provide sufficient data support for the precise adjustment of the lights.

[0005] In view of the above problems, there is an urgent need for an intelligent device that can automatically complete the precise calibration and detection of the vehicle lighting system, so as to simplify the operation process, improve the detection efficiency and accuracy, and meet the lighting detection needs of various models. This device should be able to automatically adjust the relative position of the vehicle and the device, dynamically obtain multi-dimensional data of the vehicle lighting, and guide the lighting adjustment according to the detection results, so as to effectively solve the problems of complex operation, insufficient accuracy and limited detection range in the existing technology. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system, comprising a calibration device and a correction device, wherein the bottom of the calibration device is equipped with a base, the base is clamped and fixed between a symmetrical and flat installation position of a vehicle to be tested, and the correction device is horizontally arranged on the bottom surface of the vehicle to be tested and the calibration device in the vehicle head direction; The base comprises a fixed clamp and a movable clamp, and the inner sides of the fixed clamp and the movable clamp are clamped at a symmetrical and fixable position of the vehicle to be tested; A fixed plate is mounted on the top of the fixed jaw, a movable plate is movably mounted on the top of the fixed plate, and three sets of adjustment mechanisms are mounted between the fixed plate and the movable plate; The calibration device comprises a guide rail, a slider 1 is installed inside the guide rail, a slider 2 is installed on the top of the slider 1, a slide bar is slidably installed at the center of the slider 2, sleeve frames are installed on both sides of the slide bar, and a laser correction transmitter is installed on the top of the slider 2; The correction device includes a track one symmetrically installed on both sides, a horizontal guide rail two is installed on the top of the two symmetrically arranged tracks one, a vertical guide rail three is installed on the top of the guide rail two, a guide rail four that can be raised and lowered is installed at the front end of the guide rail three, two sets of light receivers that can move left and right are installed on both sides of the guide rail four, and the light receivers are used to receive the light emitted by the vehicle to be tested, and a laser receiver is installed on the top of the end of the track two, and the laser receiver is used to receive the laser of the laser correction transmitter.

[0008] Preferably, the bracket includes a fixed tube, which is fixedly installed between the fixed tube and the fixed clamping jaw, an adjusting screw is threaded at the center of the fixed tube, the adjusting screw passes through the fixed tube, and the end of the adjusting screw is rotatably assembled inside the movable clamping jaw.

[0009] Preferably, a guide strip is welded to the proximal end of the movable clamping jaw, a groove is provided to the proximal end of the fixed clamping jaw, and the guide sleeve slides within the groove in a limited manner.

[0010] Preferably, a spherical notch is provided at the top of the fixed plate and the bottom of the movable plate, and the adjustment mechanism includes a sliding ball shaft, a ball shaft screw, a spring and a threaded button, the interior of the spherical notch is sleeved on the exterior of the sliding ball shaft, the ball shaft screw is assembled inside the spherical notch at the bottom of the movable plate, an annular baffle is welded at one end of the ball shaft screw close to the ball shaft, the spring is assembled between the bottom end of the annular baffle and the sliding ball shaft, and the end of the ball shaft screw passes through the sliding ball shaft and is threadedly connected to the interior of the threaded button.

[0011] Preferably, a connecting seat is welded to the bottom end of the fixing plate, the connecting seat is sleeved on the outside of the fixing tube, and a top screw is screwed to the bottom end of the connecting seat, and the top of the top screw is in close contact with the outer wall of the fixing tube.

[0012] Preferably, a motor 1 is mounted on the outer side of the guide rail, and the output shaft of the motor 1 drives a slider 1 to move. A guide groove perpendicular to the output shaft of the motor 1 is opened on the top of the slider 1, and a slide rail is installed at a position parallel to the top of the guide rail and the guide groove. A slider 3 is mounted on the outside of the slide rail, and the top of the slider 3 is fixed to the two ends of the slide rod, and the outer side of the slider 3 is fixed to the inner side of the sleeve frame.

[0013] Preferably, gear bars are welded on both sides of the sleeve frame, a second motor is mounted on the top right side of the movable plate, a gear is mounted on the output end of the second motor, and the gear and the gear bar are meshed for transmission.

[0014] Preferably, a leveling bead is mounted on the top edge of the movable plate.

[0015] Preferably, a fixing bar is installed at the bottom of the track one, a sliding member driven by a driving mechanism is installed inside the track one, and the sliding member is fixedly installed at the bottom of both ends of the track two.

[0016] Preferably, the interior of the track two is equipped with a slider four, the track three is equipped on the top of the slider four, the two sides of the guide rail four are symmetrically equipped with motor three, the output end of the motor three passes through the transmission assembly between the guide rail four and the slider five, and the light receiver is on the top of the slider five.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides an automatic intelligent detection and diagnostic instrument for correcting the illumination range of vehicle lights. When in use, the calibration device is first symmetrically assembled and fixed to a symmetrical and flat position of the vehicle to be tested through a bracket. After the fixing is completed, the automatic alignment program is started. After starting, the laser correction transmitter emits a laser, and the motor starts the slider to move left and right, driving the laser correction transmitter to move left and right, so that the laser beam is irradiated parallel to the left and right, and is laterally aligned on the outside of the laser receiver. The driver at the bottom of the correction device drives the entire correction device to move left and right to ensure that the left and right positions of the correction device and the vehicle are symmetrical to each other. After the correction is completed, the lights of the vehicle to be tested are started, the light receiver receives the lights, and the illumination intensity and range of the lights are detected, and finally the light detection results of the vehicle to be tested are obtained to guide the adjustment of the vehicle light range, effectively solving the problems of the existing motor vehicle lighting system that the adjustment position is not accurate enough when the comparison equipment needs to be measured and manually adjusted during correction, and the calibration method is cumbersome to operate, and also solves the problem of detection range limitation in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The detection state of the present invention is shown in FIG. Figure 1 ; Figure 2 The detection state of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a left view of the detection state of the present invention; Figure 4 It is the front view of the detection state of the present invention; Figure 5 It is a schematic diagram of the structure of the calibration device of the present invention; Figure 6 It is a schematic diagram of the explosion of the bracket of the present invention; Figure 7 A top view of the calibration device of the present invention; Figure 8 for Figure 7 Schematic diagram of the cross section at AA; Fig. 9 It is an exploded schematic diagram of the calibration device of the present invention; Fig.10 It is a schematic diagram of the structure of the correction device of the present invention; Fig.11 for Fig.10 A schematic diagram of the structure enlarged in the middle a; Fig.12 for Fig.10 The enlarged schematic diagram of the structure at b in the middle; Fig.13 It is a virtual schematic diagram of the light detection state parameters of the present invention; Fig.14 It is a schematic diagram of the virtual projection surface of light of the present invention; Fig.15 This is the background correction virtual data ratio diagram of the present invention.

[0019] In the figure: 1. bracket, 11. fixed tube, 12. adjusting screw, 13. fixed jaw, 14. movable jaw, 15. fixed plate, 16. movable plate, 17. sliding ball shaft, 18. ball shaft screw, 19. spring, 110. screw button, 111. connecting seat, 2. calibration device, 21. guide rail, 22. slider one, 23. motor one, 24. slide rail, 25. slider two, 26. motor two, 27. gear, 28. sleeve frame, 29. gear bar, 210. slider three, 211. laser correction transmitter, 3. correction device, 31. fixed bar, 32. track one, 33. track two, 34. slider four, 35. track three, 36. track four, 37. laser receiver, 38. laser receiving sensor, 39. motor three, 310. light receiver, 311. slider five, 4. vehicle to be tested. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-12 The present invention provides a technical solution: an automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system, comprising a calibration device 2 and a correction device 3, wherein the bottom of the calibration device 2 is equipped with a base 1, and the base 1 is clamped and fixed between a symmetrical and flat installation position of a vehicle to be tested 4, and the correction device 3 is horizontally arranged on the bottom surface of the vehicle to be tested 4 and the calibration device 2 in the vehicle head direction; The base 1 comprises a fixed clamping jaw 13 and a movable clamping jaw 14, and the inner sides of the fixed clamping jaw 13 and the movable clamping jaw 14 are clamped at a symmetrical and fixable position of the vehicle to be tested 4; A fixed plate 15 is mounted on the top of the fixed jaw 13, a movable plate 16 is movably mounted on the top of the fixed plate 15, and three sets of adjustment mechanisms are mounted between the fixed plate 15 and the movable plate 16; The calibration device 2 comprises a guide rail 21, a slider 22 is mounted inside the guide rail 21, a slider 25 is mounted on the top of the slider 22, a slide bar is slidably mounted at the center of the slider 25, sleeve frames 28 are mounted on both sides of the slide bar, and a laser correction transmitter 211 is mounted on the top of the slider 25; The correction device 3 includes a track 1 32 symmetrically installed on both sides, and the tops of the two symmetrically arranged tracks 1 32 are equipped with a horizontal guide rail 2 33, and the tops of the guide rail 2 33 are equipped with a vertical guide rail 3 35. The front end of the guide rail 3 35 is equipped with a guide rail 4 36 that can be raised and lowered, and the two sides of the guide rail 4 36 are equipped with two sets of light receivers 310 that can move left and right, and the light receivers 310 are used to receive the light emitted by the vehicle 4 to be tested. The top of the end of the track 2 33 is equipped with a laser receiver 37, and the laser receiver 37 is used to receive the laser of the laser correction transmitter 211.

[0022] The present invention provides an automatic intelligent detection and diagnosis instrument for correcting the illumination range of vehicle lights. When in use, the calibration device 2 is first symmetrically assembled and fixed to a symmetrical and flat position of a vehicle to be tested 4 through a bracket 1. After the fixing is completed, the automatic alignment program is started. After starting, the laser correction transmitter 211 emits a laser, and a motor 23 starts a slider 22 to move left and right, driving the laser correction transmitter 211 to move left and right, thereby irradiating the laser beam left and right in parallel, and aligning it laterally on the outside of a laser receiver 310. The driver at the bottom of the correction device 3 drives the entire correction device 3 to move left and right to ensure that the left and right positions of the correction device 3 and the vehicle are symmetrical. After the correction is completed, the light of the vehicle to be tested 4 is started, and the light receiver 310 receives the light, and the illumination intensity and range of the light are detected, and finally the light detection result of the vehicle to be tested 4 is obtained to guide the adjustment of the vehicle light range, effectively solving the problem that the adjustment position is not accurate enough when the comparison equipment needs to be measured and manually adjusted during correction of the existing motor vehicle lighting system, and the calibration method is cumbersome to operate.

[0023] Specifically, the bracket 1 includes a fixed tube 11, which is fixedly installed between the fixed tube 11 and the fixed clamp 13. An adjusting screw 12 is threaded at the center of the fixed tube 11. The adjusting screw 12 passes through the fixed tube 11, and the end of the adjusting screw 12 is rotatably assembled inside the movable clamp 14.

[0024] Specifically, a guide strip is welded to the proximal end of the movable clamping jaw 14 , a groove is formed at the proximal end of the fixed clamping jaw 13 , and the guide sleeve slides within the groove in a limited manner.

[0025] After the bracket 1 is fixed between the outer knob and the adjusting screw 12 as a whole, the knob is turned during use to drive the rotation of the adjusting screw 12, and the adjusting screw 12 is threadedly displaced inside the fixed tube 11, thereby driving the movable jaw 14 to displace relative to the fixed jaw 13 to achieve the clamping effect, and the rotation of the movable jaw 14 is limited by the groove on the outer side of the fixed jaw 13, so that the purpose of linear displacement clamping is achieved through the rotation of the movable jaw 14 and the end of the adjusting screw 12 and the limitation of the rotation of the movable jaw 14.

[0026] The mounting position of the bracket 1 needs to be installed symmetrically with the vehicle to be tested 4. The most ideal mounting position is the rear wheel brake disc. It can also be installed but not limited to the A-pillar and B-pillar light positions. It can also be installed at the edge of the bottom beam of the bottom chassis of the bottom vehicle. Through the correction positions on both sides, the ultimate purpose of selecting these mounting positions is to utilize the symmetrical positions that have been determined for different vehicles for installation, so that the width of the vehicle to be tested 4 and the position of the correction device 3 are automatically and accurately aligned by limiting the positions on both sides, which has a more accurate effect compared to manual alignment.

[0027] Specifically, a spherical groove is provided at the top of the fixed plate 15 and the bottom of the movable plate 16, and the adjustment mechanism includes a sliding ball shaft 17, a ball shaft screw 18, a spring 19 and a screw button 110. The interior of the spherical groove is sleeved on the exterior of the sliding ball shaft 17, and the ball shaft screw 18 is assembled inside the spherical groove at the bottom of the movable plate 16. An annular baffle is welded at one end of the ball shaft screw 18 close to the ball shaft, and the spring is assembled between the bottom end of the annular baffle and the sliding ball shaft 17. The end of the ball shaft screw 18 passes through the sliding ball shaft 17 and is screwed to the inside of the screw button 110.

[0028] After the bottom of the bracket 1 is fixed, by observing the horizontal bead located on the top of the movable plate 16, with the assistance of adjusting the three sets of adjustment devices supported in a triangular shape, the screw button 110 is rotated to screw on the outside of the ball shaft screw 18, so as to adjust the distance between the screw button 110 and the ball shaft screw 18, and through the close contact between the screw button 110 and the sliding ball shaft 17 and the stress released by the spring 19 outside the sliding ball shaft 17, the ball shaft screw 18 is pushed outward, so as to adjust the support angle and the distance position between the movable plate 15 and the fixed plate 15, and then the influence of the bottom installation position can be ignored, and the movable plate 16 can be adjusted to a horizontal state alone. The horizontal bead is a commonly used level adjustment indicator for water drop bubble alignment.

[0029] Specifically, a connecting seat 111 is welded to the bottom end of the fixing plate 15, and the connecting seat 111 is sleeved on the outside of the fixing tube 11, and a top screw is screwed on the bottom end of the connecting seat 111, and the top of the top screw is in close contact with the outer wall of the fixing tube 11. Through the fixing effect between the connecting seat 111 and the fixing tube 11, the initial angle of the fixing plate 15 relative to the bottom surface can be adjusted after the fixing tube 11 is fixed. When adjusting, the above functions can be achieved by simply loosening the top screw and rotating it.

[0030] Specifically, a motor 23 is installed on the outer side of the guide rail 21, and the output shaft of the motor 23 drives the slider 22 to move. A guide groove perpendicular to the output shaft of the motor 23 is opened on the top of the slider 22, and a slide rail 24 is installed at a position parallel to the top of the guide rail 21 and the guide groove. A slider 3 210 is installed on the outside of the slide rail 24, and the top of the slider 3 210 is fixed to the two ends of the slide rod, and the outer side of the slider 3 210 is fixed to the inner side of the sleeve frame 28.

[0031] Gear bars 29 are welded on both sides of the sleeve frame 28 , a second motor 26 is mounted on the top right side of the movable plate 16 , a gear 27 is mounted on the output end of the second motor 26 , and the gear 27 is meshed with the gear bar 29 for transmission.

[0032] The top edge of the movable plate 16 is equipped with a leveling bead.

[0033] The bottom of the track 1 32 is equipped with a fixing bar 31 , and the interior of the track 1 32 is equipped with a sliding member driven by a driving mechanism, and the sliding member is fixedly assembled with the bottoms of both ends of the track 2 33 .

[0034] The inside of the track two 33 is equipped with a slider four 34, the track three 35 is equipped on the top of the slider four 34, the two sides of the guide rail four 36 are symmetrically equipped with motor three 39, the output end of the motor three 39 passes through the transmission assembly between the guide rail four 36 and the slider five 311, and the light receiver 310 is on the top of the slider five 311.

[0035] The driver installed at the bottom of the fixed bar 31 is a driving structure for driving the overall left-right displacement. It can specifically be composed of two sets of transversely arranged transmission structures, which can drive the fixed width fixed bar 31, track 1 32 and the entire top structure to move left-right.

[0036] During correction, first fix the bottom of the bracket 1, then adjust the tightness of the top screw and rotate the fixing plate 15 to a preliminary horizontal state; Then, according to the bubble position of the level bead, the horizontal position of the movable plate 16 is adjusted by rotating the tightness of the three sets of adjustment devices. After the adjustment is completed, the laser correction transmitter 211 is started to emit laser; Then, the motor 1 23 starts the slider 1 22 to move left and right through the rotation and the corresponding driving structure (preferably a screw transmission structure), thereby driving the slider 2 25 and the laser correction transmitter 211 to move left and right outside the sliding rod and the driving structure of the motor 1 23. During the displacement process, the laser moves at a uniform speed in a horizontal linear path, such as Fig.15As shown, point B is a schematic diagram of the installation position of the bracket 11, line A is the total stroke of the slider 22, and point M is the center point of the slider 22, that is, the calibration point. During the displacement process, after the laser optical fiber irradiates the laser receiver 37, the laser receiving sensor 38 inside the laser receiver 37 will receive lasers of different intensities when the laser beam approaches, irradiates, and moves away, thereby converting lasers of different intensities into electrical signals of different intensities. The background control system converts the virtual path length position just displayed by the system for the motor 23 into a time parameter or a distance parameter, and combines the position with the strongest laser, that is, the position with the strongest electrical signal to determine the correct alignment position, and then outputs the strongest position of the displacement position on both sides as a spatial virtual signal (point C). The signal is a virtual path parallel to the track 33. The path has a length (D line), and the length of the path is the setting width of the two sets of laser receivers 37. The strongest points of the lasers on both sides are compared with the coincidence point of the path to the center position of the slider 22 (point M). The value (dQ) is the deviation distance of the whole set of correction devices 3. Then the driver drives the whole set of correction devices 3 to perform displacement alignment. After the alignment is completed (the left position of the D line corresponds to the position of the point M), the distance between the laser correction transmitter 211 and the laser receiving sensor 38 can also be calculated according to the receiving time difference between the laser correction transmitter 211 and the laser receiving sensor 38, and determined as the distance of the whole set of correction devices 3 relative to the vehicle. According to the distance information, the specific parameters of the headlights are set to select the projection figure of the range in which the fan illuminated by the headlights should be distributed under the numerical plane of the distance. After the alignment is completed, the detailed parameters of the car are input into the background, and the width of the vehicle and the position of the headlights can be known. The transmission mechanism built into the track 2 33 drives the slider 4 34 to move, and then drives the track 3 35 and the track 4 36 to move left and right to adjust to the detection position of the headlights. Then, the headlights are turned on, and the light generated by the headlights will be received by the light receiver 310. Based on the analysis of the lighting intensity of the light and the shape of the projection plane figure that the headlights should form on the vertical plane at the position of the correction device 3, the normal lighting range and the geometric figure of the light projection received by the light receiver 310 at that position are determined for comparison. The center point of the strongest light position after detection is compared with the position of the strongest light center point, and converted into the xy axis distance of the vertical plane. The deviation of the horizontal plane and the vertical plane is calculated by the distance of the headlight light projection, and the deviation of the light in the pitch angle and the left and right horizontal angle can be obtained. In addition to the deviation calculation of the strongest light point, in order to better correct it, sampling and comparison can be performed based on the points in the same part of the light distribution arc to assist in correction verification, and the angle that needs to be adjusted for the deflection position is reversely calculated. In combination with the adjustment methods of different models, specific adjustment steps are provided, such as the number of times a button is pressed or the specific angle of control of light adjustment.

[0037] like Fig.13 As shown, point P is the virtual lighting point, line G is the strongest simulated line of virtual lighting, point S is the strongest virtual receiving point of light, and the dark blue dz virtual line, green dy virtual line and red dx virtual line are the schematic diagrams of the calculation of the strongest position of received light in the background system; And the plane formed by the brown wireframe in the figure is the virtual vertical plane from the light source to the entire calibration device 3, and the distance from the light source to the virtual vertical plane is the length of the blue line, that is, the length of dz; Among them, the angle between the projection line of line G on the ZY plane and the projection line of the two planes ZY plane and the line connecting the projection position (point O) of the light on the virtual vertical plane in the initial state of the vehicle and the light source point P on the ZY plane and the projection line of the two planes ZY plane is the pitch angle and horizontal angle that need to be adjusted.

[0038] like Fig.14 As shown, Fig.14 is a virtual vertical plane (it should be noted that the virtual vertical plane is Fig.13 For example, it should be a comparison of the light projection shape graphics under the plane that coincides with the virtual representative line of the position of the correction device 3 in the XY direction), where the solid line area is the actual measured light projection shape, the dotted line area is the initial state of the vehicle, that is, the projection shape that needs to be adjusted, and the position of point O and point S are indicated. By calculating the angle between the two points and the line connecting the light source point and point P in three-dimensional space in the ZY plane and the projection line under the ZY plane, the pitch and left and right angles of the light that need to be adjusted can be finally obtained. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system, comprising a calibration device (2) and a correction device (3), characterized in that: The bottom of the calibration device (2) is equipped with a base (1), the base (1) is clamped and fixed between a symmetrical and flat installation position of the vehicle to be tested (4), and a correction device (3) is horizontally arranged on the bottom surface of the vehicle to be tested (4) and the calibration device (2) in the vehicle head direction; The base (1) comprises a fixed clamping jaw (13) and a movable clamping jaw (14), wherein the inner sides of the fixed clamping jaw (13) and the movable clamping jaw (14) are clamped at a symmetrical and fixable position of the vehicle to be tested (4); A fixed plate (15) is mounted on the top of the fixed clamping jaw (13), a movable plate (16) is movably mounted on the top of the fixed plate (15), and three sets of adjustment mechanisms are mounted between the fixed plate (15) and the movable plate (16); The calibration device (2) comprises a guide rail (21), a slider 1 (22) is mounted inside the guide rail (21), a slider 2 (25) is mounted on the top of the slider 1 (22), a slide bar is slidably mounted at the center of the slider 2 (25), sleeve frames (28) are mounted on both sides of the slide bar, and a laser correction transmitter (211) is mounted on the top of the slider 2 (25); The correction device (3) comprises a track one (32) symmetrically installed on both sides, the bottom of the two symmetrically arranged tracks one (32) is equipped with a driver capable of driving the entire correction device (3) to move left and right, the top of the two symmetrically arranged tracks one (32) is equipped with a horizontal guide rail two (33), the top of the guide rail two (33) is equipped with a vertical guide rail three (35), the front end of the guide rail three (35) is equipped with a guide rail four (36) that can be raised and lowered, and two sets of light receivers (310) that can move left and right are equipped on both sides of the guide rail four (36), and the light receivers (310) are used to receive light emitted by the vehicle to be tested (4), and the top of the end of the track two (33) is equipped with a laser receiver (37), and the laser receiver (37) is used to receive laser light from a laser correction transmitter (211).

2. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 1, characterized in that: The bracket (1) comprises a fixed tube (11), the fixed tube (11) being fixedly mounted between a fixed clamping jaw (13), an adjusting screw (12) being threadedly connected at the center of the fixed tube (11), the adjusting screw (12) passing through the fixed tube (11), and the end of the adjusting screw (12) being rotatably mounted inside a movable clamping jaw (14).

3. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 2, characterized in that: A guide strip is welded to the proximal end of the movable clamping jaw (14), a groove is provided at the proximal end of the fixed clamping jaw (13), and the guide sleeve slides within the groove in a limited manner.

4. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 2, characterized in that: The top of the fixed plate (15) and the bottom of the movable plate (16) are provided with spherical notches. The adjustment mechanism comprises a sliding ball shaft (17), a ball shaft screw (18), a spring (19) and a screw-connecting button (110). The interior of the spherical notch is sleeved on the exterior of the sliding ball shaft (17). The ball shaft screw (18) is assembled inside the spherical notch at the bottom of the movable plate (16). An annular baffle is welded at one end of the ball shaft screw (18) close to the ball shaft. The spring is assembled between the bottom end of the annular baffle and the sliding ball shaft (17). The end of the ball shaft screw (18) passes through the sliding ball shaft (17) and is screw-connected to the interior of the screw-connecting button (110).

5. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 4, characterized in that: A connecting seat (111) is welded to the bottom end of the fixing plate (15), the connecting seat (111) is sleeved on the outside of the fixing tube (11), and a top screw is screwed to the bottom end of the connecting seat (111), the top of the top screw is in close contact with the outer wall of the fixing tube (11).

6. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 1, characterized in that: The outer side of the guide rail (21) is equipped with a motor 1 (23), the output shaft of the motor 1 (23) drives the slider 1 (22) to move, the top of the slider 1 (22) is provided with a guide groove perpendicular to the output shaft of the motor 1 (23), and a slide rail (24) is installed at a position where the top of the guide rail (21) and the guide groove are parallel to each other, and the outside of the slide rail (24) is equipped with a slider 3 (210), the top of the slider 3 (210) is fixed to the two ends of the slide rod, and the outer side of the slider 3 (210) is fixed to the inner side of the sleeve frame (28).

7. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 4, characterized in that: Gear bars (29) are welded on both sides of the sleeve frame (28), a second motor (26) is mounted on the top right side of the movable plate (16), a gear (27) is mounted on the output end of the second motor (26), and the gear (27) and the gear bar (29) are meshed for transmission.

8. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 1, characterized in that: The top edge of the movable plate (16) is equipped with a leveling bead.

9. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 1, characterized in that: The bottom of the track one (32) is equipped with a fixing strip (31), and the interior of the track one (32) is equipped with a sliding member driven by a driving mechanism, and the sliding member is fixedly assembled with the bottoms of both ends of the track two (33).

10. The automatic intelligent detection and diagnosis instrument for a motor vehicle lighting system according to claim 1, characterized in that: The track two (33) is internally mounted with a slider four (34), the track three (35) is mounted on the top of the slider four (34), the two sides of the guide rail four (36) are symmetrically mounted with motor three (39), the output end of the motor three (39) passes through the transmission assembly between the guide rail four (36) and the slider five (311), and the light receiver (310) is mounted on the top of the slider five (311).

Citation Information

Patent Citations

  • Device and method for straightening calibration equipment

    CN111442745A

  • High-precision agricultural machinery headlamp detector

    CN113358333A

  • Visual calibrator for calibrating motor vehicle headlamp detector and calibration method

    CN118776833A

  • Sensor installation position calibration device of intelligent driving vehicle

    CN213579166U

  • Photoelectric orientation experiment device

    CN221687098U