Intelligent calibrator and calibration method for headlamp detector calibration

Abstract

The present application relates to a kind of intelligent calibrators and calibration methods for headlamp detector calibration, belong to detection and instrument calibration technical field, solve the technical problems of complex structure, poor light axis calibration accuracy, image recognition difficulty, small application scope of prior art headlamp detector calibration device.The calibrator includes by upper to lower sequentially arranged: lamp holder mechanism, lamp holder rotating mechanism, lamp holder moving mechanism, comprehensive adjustment mechanism;It also includes: intelligent control system.The intelligent calibrators for headlamp detector calibration of the present application, by displacement sensor mechanism, makes displacement sensor rotate scanning, realizes the light axis center of headlamp and the light axis center of headlamp detector coincidence, under the condition of not using visual recognition sensor, also realize light axis center coincidence;Compared with prior art, avoid the error of light axis center coincidence caused by outer screen deformation, improve calibration accuracy;And it can be applicable to the headlamp detector of light axis center in different positions.

Description

Technical Field

[0001] This invention relates to the field of testing and instrument calibration technology, and in particular to an intelligent calibrator and calibration method for calibrating headlight testers. Background Technology

[0002] Currently, with the rapid development and increased production of new energy vehicles globally, traffic safety has become a global focus. To ensure safe driving at night and effectively prevent traffic accidents caused by insufficient visibility, countries have implemented a series of strict technical requirements and laws and regulations regarding the beams of motor vehicle headlights. Headlights not only play a crucial role in illuminating the road ahead for drivers, but the brightness, color temperature, and directionality of their beams directly affect the driver's visual comfort and driving safety.

[0003] Therefore, headlight testing has become an indispensable part of vehicle annual inspections, quality supervision, and vehicle maintenance. As the core equipment in this testing process, the accuracy and reliability of the headlight tester are crucial. It can quickly and accurately assess the performance of vehicle headlights, ensuring that vehicles provide sufficient, uniform, and appropriate illumination at night or in low visibility conditions, thereby reducing driver eye fatigue and enhancing nighttime driving safety.

[0004] Chinese patent document CN118424100A discloses an automatic contour recognition and center alignment device and method for calibrating a headlight detector. This device mainly includes a lamp holder, a lamp base, a standard light source, a linear motion mechanism, an angle adjustment mechanism, a pitch motor, a pitch adjustment shaft, a laser displacement sensor, and a visual recognition sensor. This device primarily utilizes the visual recognition sensor to identify the size of the light-receiving surface of the headlight detector. After calculating the center coordinates through the control unit, the standard light source is moved to the center coordinates to achieve alignment between the standard light source and the optical axis center of the headlight detector. However, in actual calibration, this device encounters the following problems: 1. Due to the performance limitations of the visual recognition sensor, such as weak glass reflectivity, the visual recognition sensor cannot accurately identify the size of the light-receiving surface of the headlight detector; 2. When the frame of the headlight detector is deformed, the center coordinates calculated by the visual recognition sensor are inaccurate; 3. The structure is complex, making maintenance difficult. Summary of the Invention

[0005] This invention aims to solve the technical problems of existing headlight tester calibration devices, such as complex structure, poor optical axis calibration accuracy, difficulty in image recognition, and limited applicability. It provides an intelligent calibrator and calibration method for headlight tester calibration.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0007] An intelligent calibrator for calibrating a headlight tester includes, from top to bottom, a lamp holder mechanism, a lamp holder rotation mechanism, a lamp holder moving mechanism, and a comprehensive adjustment mechanism; it also includes an intelligent control system.

[0008] in:

[0009] The lamp holder rotating mechanism is connected to the lamp holder mechanism and is used to control the lamp holder mechanism to rotate horizontally; the lamp holder moving mechanism is connected to the lamp holder rotating mechanism and is used to control the lamp holder mechanism to move horizontally and vertically; the integrated adjustment mechanism is connected to the lamp holder moving mechanism and is used to control the lamp holder mechanism to move horizontally, forward and backward, and tilt; the intelligent control system is electrically connected to the lamp holder mechanism, the lamp holder rotating mechanism, the lamp holder moving mechanism, and the integrated adjustment mechanism respectively, and is used to control the movement of the lamp holder mechanism, the lamp holder rotating mechanism, the lamp holder moving mechanism, and the integrated adjustment mechanism respectively.

[0010] In the above technical solution, the lamp holder mechanism includes: a headlight, a headlight moving mechanism, and at least one displacement sensor mechanism. The headlight moving mechanism is connected to the headlight and is used to control the headlight to move forward, backward, left, and right. Each displacement sensor mechanism is located on the horizontal centerline and / or vertical center of the optical axis of the headlight.

[0011] In the above technical solution, each displacement sensor mechanism includes: a driving mechanism, a rotating mechanism, and a displacement sensor; the driving mechanism is used to rotate the displacement sensor through the rotating mechanism.

[0012] In the above technical solution, the headlight moving mechanism includes, from bottom to top, a first hydraulic device and a headlight up-down moving device; above the headlight up-down moving device, from left to right, a second hydraulic device and a headlight left-right moving device are arranged in sequence; the headlight left-right moving device is provided with a headlight fixing device.

[0013] The first hydraulic device is used to move the headlight up and down via the headlight up-and-down moving device; the second hydraulic device is used to move the headlight left and right via the headlight left-and-right moving device.

[0014] In the above technical solution, the integrated adjustment mechanism includes: a first hydraulic lifting foot, a second hydraulic lifting foot, a third hydraulic lifting foot, a fourth hydraulic lifting foot, a first electric wheel, a second electric wheel, a third electric wheel, a fourth electric wheel, and a gyroscope;

[0015] The first, second, third, and fourth hydraulic lifting feet, along with the first, second, third, and fourth electric wheels, are evenly distributed on the bottom surface of the calibrator. The gyroscope is located inside the device and is parallel to the bottom surface. The first, second, third, and fourth electric wheels control the lamp holder mechanism to move forward, backward, left, and right. The first, second, third, and fourth hydraulic lifting feet control the lamp holder mechanism to move up and down and tilt.

[0016] In the above technical solution, the lamp holder mechanism is a first lamp holder mechanism, which includes: a headlight and a first displacement sensor mechanism, a second displacement sensor mechanism, a third displacement sensor mechanism, and a fourth displacement sensor mechanism respectively disposed above, to the right, below, and to the left of the headlight; a headlight moving mechanism is installed on the headlight;

[0017] The first displacement sensor mechanism includes, from top to bottom, a first drive mechanism, a first rotation mechanism, and a first displacement sensor; the first drive mechanism is used to rotate the first displacement sensor via the first rotation mechanism.

[0018] The second displacement sensor mechanism includes, from top to bottom, the following components arranged sequentially: a second drive mechanism, a second rotation mechanism, and a second displacement sensor; the second drive mechanism is used to rotate the second displacement sensor via the second rotation mechanism.

[0019] The third displacement sensor mechanism includes, from top to bottom, the following components arranged in sequence: a third drive mechanism, a third rotation mechanism, and a third displacement sensor; the third drive mechanism is used to rotate the third displacement sensor via the third rotation mechanism.

[0020] The fourth displacement sensor mechanism includes: a fourth drive mechanism, a fourth rotation mechanism, and a fourth displacement sensor; the fourth drive mechanism is used to rotate the fourth displacement sensor via the fourth rotation mechanism.

[0021] The first and third displacement sensors rotate at the same frequency and angle; the second and fourth displacement sensors rotate at the same frequency and angle.

[0022] In the above technical solution, the lamp holder mechanism is a second lamp holder mechanism, which includes: a fifth displacement sensor mechanism, a circular sawtooth track, a second headlight, a headlight moving mechanism, a rotating mechanism, and a sawtooth rolling device.

[0023] The rotating mechanism is connected to the circular sawtooth track via sawtooths and is used to control the rotation of the circular sawtooth track; the headlight moving mechanism is mechanically connected to the second headlight and is used to adjust the optical axis center of the second headlight; the circular sawtooth track is connected to the sawtooth rolling device and is used to control the rotation and movement path of the fifth displacement sensor mechanism; the optical axis center of the second headlight is located at the center of the circular sawtooth track; the fifth displacement sensor mechanism is fixed inside the sawtooth rolling device.

[0024] In the above technical solution, the lamp holder rotation mechanism includes a fifth drive mechanism and a rotary transmission mechanism. The fifth drive mechanism causes the lamp holder mechanism to rotate left and right in the horizontal direction through the rotary transmission mechanism.

[0025] In the above technical solution, the lamp holder moving mechanism includes: a vertical moving mechanism, a third hydraulic device, a front-back moving mechanism, a fourth hydraulic device, a left-right moving mechanism, and a fifth hydraulic device; the third hydraulic device is connected to the front-back moving mechanism, the fourth hydraulic device is connected to the left-right moving mechanism and is located on the front-back moving mechanism, the vertical moving mechanism is located above the left-right moving mechanism, the third hydraulic device moves the lamp holder mechanism back and forth through the front-back moving mechanism, the fourth hydraulic device moves the lamp holder mechanism left and right through the left-right moving mechanism, and the vertical moving mechanism moves the lamp holder mechanism up and down.

[0026] An intelligent calibration method for headlight tester calibration, applicable to the aforementioned intelligent calibrator for headlight tester calibration, includes the following steps:

[0027] The first step is to align the optical axis center of the headlight with the center of the first lamp holder mechanism;

[0028] The second step is to preheat the equipment and restore the equipment settings to their initial positions.

[0029] Third step: The center line of the plane where the headlight is located is parallel to the plane where the headlight test instrument is located;

[0030] Fourth step: The bottom surface of the calibrator is parallel to the ground;

[0031] Fifth step: The plane where the headlights are located is parallel to the plane where the headlight testing instrument is located;

[0032] Step 6: The displacement sensor rotates and scans to align the center of the optical axis of the headlight with the center of the optical axis of the headlight detector in the vertical direction.

[0033] Step 7: The displacement sensor rotates and scans to align the center of the optical axis of the headlight with the center of the optical axis of the headlight detector in the horizontal direction.

[0034] Step 8: Calibrate the headlight test instrument.

[0035] The present invention has the following beneficial effects:

[0036] The intelligent calibrator for headlight testing instrument calibration of the present invention uses a displacement sensor mechanism to rotate and scan, thereby aligning the optical axis center of the headlight with that of the headlight testing instrument. This alignment can be achieved without using a visual recognition sensor. Compared with the prior art, this avoids optical axis center alignment errors caused by external screen deformation, thus improving calibration accuracy. Furthermore, it is applicable to headlight testing instruments with optical axis centers located at different positions.

[0037] The intelligent calibrator for headlight testing instrument calibration of the present invention achieves headlight pitch movement by using a lifting foot through a comprehensive adjustment mechanism, eliminating the need for a separate pitch adjustment mechanism and simplifying the structure compared to existing technologies; it uses electric wheels to achieve automatic distance adjustment, reducing operation time compared to manual adjustment in existing technologies; and it uses the lifting foot and gyroscope to achieve horizontal adjustment of the calibrator, making it suitable for different ground conditions. Attached Figure Description

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0039] Figure 1 This is a schematic diagram of the overall structure of the intelligent calibrator for headlight tester calibration provided by the present invention.

[0040] Figure 2 This is a schematic diagram of the lamp holder mechanism in the intelligent calibrator for headlight testing instrument calibration provided by the present invention.

[0041] Figure 3 This is a schematic diagram of the displacement sensor mechanism in the intelligent calibrator for headlight tester calibration provided by the present invention.

[0042] Figure 4 This is a schematic diagram of the headlight moving mechanism in the intelligent calibrator for headlight tester calibration provided by the present invention.

[0043] Figure 5 This is a schematic diagram of the lamp holder moving mechanism in the intelligent calibrator for headlight tester calibration provided by the present invention.

[0044] Figure 6 This is a schematic diagram of the integrated adjustment mechanism in the intelligent calibrator for headlight tester calibration provided by the present invention.

[0045] Figure 7 This is a schematic diagram showing the optical axis alignment of the intelligent calibrator for headlight tester calibration provided by the present invention.

[0046] Figure 8 This is a schematic diagram of the pitch motion of the intelligent calibrator for headlight tester calibration provided by the present invention.

[0047] Figure 9 This is another schematic diagram showing optical axis alignment for the intelligent calibrator used for headlight tester calibration provided by the present invention.

[0048] Figure 10 This is another schematic diagram of the lamp holder mechanism in the intelligent calibrator for headlight tester calibration provided by the present invention.

[0049] Figure 11 This is a schematic diagram of another structure of the displacement sensor mechanism in the intelligent calibrator for headlight tester calibration provided by the present invention.

[0050] The reference numerals in the figure are:

[0051] 1-First lamp holder mechanism; 2-Lamp holder rotation mechanism; 3-Lamp holder moving mechanism; 4-Comprehensive adjustment mechanism; 5-Intelligent control system;

[0052] 110 - First displacement sensor mechanism; 111 - First drive mechanism; 112 - First rotation mechanism; 113 - First displacement sensor;

[0053] 120 - Second displacement sensor mechanism; 121 - Second drive mechanism; 122 - Second rotation mechanism; 123 - Second displacement sensor;

[0054] 130 - Third displacement sensor mechanism; 131 - Third drive mechanism; 132 - Third rotation mechanism; 133 - Third displacement sensor;

[0055] 140 - Fourth displacement sensor mechanism; 141 - Fourth drive mechanism; 142 - Fourth rotation mechanism; 143 - Fourth displacement sensor;

[0056] 150-Headlight;

[0057] 160 - Headlight moving mechanism; 161 - First hydraulic device; 162 - Headlight up-down moving device; 163 - Second hydraulic device; 164 - Headlight left-right moving device; 165 - Headlight fixing device;

[0058] 170 - Headlight tester; 171 - Headlight tester frame; 181 - Headlight tester glass screen;

[0059] 210 - Fifth drive mechanism; 220 - Rotary transmission mechanism;

[0060] 310 - Up-down moving mechanism; 322 - Left-right moving mechanism; 332 - Forward-backward moving mechanism; 311 - Fifth hydraulic device; 321 - Fourth hydraulic device; 331 - Third hydraulic device;

[0061] 21-Second lamp holder mechanism; 214-Fifth displacement sensor mechanism; 211-Sixth hydraulic device; 212-Fifth rotating mechanism; 213-Fifth displacement sensor; 215-Circular sawtooth track; 250-Second headlight; 260-Rotating mechanism; 270-Sawtooth rolling device;

[0062] 411-First hydraulic lifting foot; 412-Second hydraulic lifting foot; 413-Third hydraulic lifting foot; 414-Fourth hydraulic lifting foot; 421-First electric wheel; 422-Second electric wheel; 423-Third electric wheel; 424-Fourth electric wheel; 430-Gyroscope. Detailed Implementation

[0063] The present invention provides an intelligent calibrator and calibration method for headlight tester calibration, which integrates multiple technologies such as optoelectronic technology, image processing technology, and computer technology.

[0064] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0065] Example 1

[0066] like Figure 1 As shown, the intelligent calibrator for headlight testing includes, from top to bottom: a first lamp holder mechanism 1, a lamp holder rotation mechanism 2, a lamp holder moving mechanism 3, and a comprehensive adjustment mechanism 4; it also includes: an intelligent control system 5. Wherein:

[0067] The lamp holder rotating mechanism 2 is mechanically connected to the first lamp holder mechanism 1 and is used to control the first lamp holder mechanism 1 to rotate in the horizontal direction.

[0068] The lamp holder moving mechanism 3 is mechanically connected to the lamp holder rotating mechanism 2 and is used to control the first lamp holder mechanism 1 to move in the horizontal and vertical directions.

[0069] The integrated adjustment mechanism 4 is mechanically connected to the lamp holder moving mechanism 3, and is used to control the first lamp holder mechanism 1 to move in the horizontal and forward and backward directions.

[0070] The intelligent control system 5 is electrically connected to the first lamp holder mechanism 1, the lamp holder rotation mechanism 2, the lamp holder moving mechanism 3, and the comprehensive adjustment mechanism 4, and is used to control the movement of all mechanisms.

[0071] like Figure 2As shown, the first lamp holder mechanism 1 includes: a headlight 150 and a first displacement sensor mechanism 110, a second displacement sensor mechanism 120, a third displacement sensor mechanism 130, and a fourth displacement sensor mechanism 140 respectively disposed above, to the right, below, and to the left of the headlight 150; a headlight moving mechanism 160 is mounted on the headlight 150; the first displacement sensor mechanism 110 and the third displacement sensor mechanism 130 are located on the upper and lower sides of the headlight 150. The second displacement sensor mechanism 120 and the fourth displacement sensor mechanism 140 are located on the left and right sides of the headlight 150.

[0072] like Figure 3 As shown, the first displacement sensor mechanism 110 includes, from top to bottom, the following components arranged in sequence: a first drive mechanism 111, a first rotation mechanism 112, and a first displacement sensor 113; the first drive mechanism 111 is mechanically connected to the first rotation mechanism 112, and the first displacement sensor 113 is fixed on the first rotation mechanism 112; the first drive mechanism 111 is used to rotate the first displacement sensor 113 through the first rotation mechanism 112.

[0073] The second displacement sensor mechanism 120 includes, from top to bottom, a second drive mechanism 121, a second rotation mechanism 122, and a second displacement sensor 123; the second drive mechanism 121 is used to rotate the second displacement sensor 123 through the second rotation mechanism 122.

[0074] The third displacement sensor mechanism 130 includes, from top to bottom, a third drive mechanism 131, a third rotation mechanism 132, and a third displacement sensor 133; the third drive mechanism 131 rotates the third displacement sensor 133 via the third rotation mechanism 132.

[0075] The fourth displacement sensor mechanism 140 includes: a fourth drive mechanism 141, a fourth rotation mechanism 142, and a fourth displacement sensor 143; the fourth drive mechanism 141 causes the fourth displacement sensor 143 to rotate through the fourth rotation mechanism 142.

[0076] The first displacement sensor 113 and the third displacement sensor 133 rotate at the same frequency and angle; the second displacement sensor 123 and the fourth displacement sensor 143 rotate at the same frequency and angle.

[0077] Specifically, the first drive mechanism 111, the second drive mechanism 121, the third drive mechanism 131 and the fourth drive mechanism 141 are all motor devices.

[0078] like Figure 4As shown, the headlight moving mechanism 160 includes, from bottom to top, a first hydraulic device 161 and a headlight up-down moving device 162; above the headlight up-down moving device 162, from left to right, a second hydraulic device 163 and a headlight left-right moving device 164 are arranged in sequence; a headlight fixing device 165 is provided on the headlight left-right moving device 164.

[0079] The first hydraulic device 161 is fixed below the headlight up-down moving device 162, the second hydraulic device 163 is connected to the headlight left-right moving device 164 and fixed above the headlight up-down moving device 162, and the headlight fixing device 165 is located on the headlight left-right moving device 164.

[0080] The first hydraulic device 161 is used to move the headlight 150 up and down via the headlight up and down moving device 162; the second hydraulic device 163 is used to move the headlight 150 left and right via the headlight left and right moving device 164.

[0081] like Figure 2 As shown, when the first displacement sensor mechanism 110 and the third displacement sensor mechanism 130 are in the initial state, the first displacement sensor 113 and the third displacement sensor 133 are located on the vertical center line h of the plane where the first lamp holder mechanism 1 is located, and the first displacement sensor 113 and the third displacement sensor 133 are equidistant from the center point P of the first lamp holder mechanism 1. The first displacement sensor 113 and the third displacement sensor 133 are perpendicular to the plane where the first lamp holder mechanism 1 is located, and rotate at the same frequency and angle on the vertical center line h.

[0082] When the second displacement sensor mechanism 120 and the fourth displacement sensor mechanism 140 are in their initial state, the second displacement sensor 123 and the fourth displacement sensor 143 are located on the horizontal center line S of the plane where the first lamp holder mechanism 1 is located, and the second displacement sensor 123 and the fourth displacement sensor 143 are equidistant from the center point P of the first lamp holder mechanism 1. The second displacement sensor 123 and the fourth displacement sensor 143 are perpendicular to the plane where the first lamp holder mechanism 1 is located, and rotate at the same frequency and angle on the horizontal center line S.

[0083] like Figure 5 As shown, the lamp holder rotation mechanism 2 includes a fifth drive mechanism 210 and a rotation transmission mechanism 220. The fifth drive mechanism 210 rotates the first lamp holder mechanism 1 left and right in the horizontal direction through the rotation transmission mechanism 220. The fifth drive mechanism 210 is a motor device.

[0084] like Figure 5As shown, the lamp holder moving mechanism 3 includes: a vertical moving mechanism 310, a third hydraulic device 331, a front-back moving mechanism 332, a fourth hydraulic device 321, a left-right moving mechanism 322, and a fifth hydraulic device 311; the third hydraulic device 331 is connected to the front-back moving mechanism 332, the fourth hydraulic device 321 is connected to the left-right moving mechanism 322 and is located on the front-back moving mechanism 332, the vertical moving mechanism 310 is located above the left-right moving mechanism 322, the third hydraulic device 331 causes the first lamp holder mechanism 1 to move back and forth through the front-back moving mechanism 332, the fourth hydraulic device 321 causes the first lamp holder mechanism 1 to move left and right through the left-right moving mechanism 322, and the vertical moving mechanism 310 causes the first lamp holder mechanism 1 to move up and down.

[0085] like Figure 5-6 As shown, the integrated adjustment mechanism 4 includes: a first hydraulic lifting foot 411, a second hydraulic lifting foot 412, a third hydraulic lifting foot 413, a fourth hydraulic lifting foot 414, a first electric wheel 421, a second electric wheel 422, a third electric wheel 423, a fourth electric wheel 424, and a gyroscope 430.

[0086] The first hydraulic lifting foot 411, the second hydraulic lifting foot 412, the third hydraulic lifting foot 413, the fourth hydraulic lifting foot 414, the first electric wheel 421, the second electric wheel 422, the third electric wheel 423, and the fourth electric wheel 424 are evenly distributed on the bottom surface of the calibrator. The gyroscope 430 is located inside the device and is parallel to the bottom surface. The first electric wheel 421, the second electric wheel 422, the third electric wheel 423, and the fourth electric wheel 424 control the forward, backward, left, and right movement of the first lamp holder mechanism 1; the first hydraulic lifting foot 411, the second hydraulic lifting foot 412, the third hydraulic lifting foot 413, and the fourth hydraulic lifting foot 414 control the up-down movement and pitch movement of the first lamp holder mechanism 1.

[0087] Example 2

[0088] A calibration method for an intelligent calibrator suitable for headlight tester calibration as shown in Embodiment 1 includes the following steps:

[0089] The first step is to align the optical axis center of the headlight 150 with the center of the first lamp holder mechanism 1;

[0090] The headlight moving mechanism 160 makes the optical axis center of the headlight 150 coincide with the center point P of the first lamp holder mechanism 1.

[0091] The second step is to preheat the equipment and restore the equipment settings to their initial positions.

[0092] When the device is started, the intelligent control system 5 sets the four displacement sensor mechanisms (first displacement sensor mechanism 110, second displacement sensor mechanism 120, third displacement sensor mechanism 130, and fourth displacement sensor mechanism 140) to their initial state, that is, the optical axis centers of the four displacement sensors (first displacement sensor 113, second displacement sensor 123, third displacement sensor 133, and fourth displacement sensor 143) are parallel to the optical axis center of the headlight 150, and the distances from the optical axis center of the headlight 150 are equal.

[0093] Third step: The center line of the plane where the headlight 150 is located is parallel to the plane where the headlight detector 170 is located;

[0094] The intelligent control system 5 sets the second displacement sensor 123 and the fourth displacement sensor 143 located on the left and right sides of the headlight 150 to 1 meter. The intelligent control system 5 controls the first electric wheel 421, the second electric wheel 422, the third electric wheel 423 and the fourth electric wheel 424 to move forward, backward and left and right until the second displacement sensor 123 and the fourth displacement sensor 143 are both 1 meter away from the plane where the headlight detector 170 is located. At this time, the horizontal center line of the plane where the headlight 150 is located is parallel to the plane where the headlight detector 170 is located.

[0095] Fourth step: The bottom surface of the calibrator is parallel to the ground;

[0096] The intelligent control system 5 controls the first hydraulic lifting foot 411, the second hydraulic lifting foot 412, the third hydraulic lifting foot 413, and the fourth hydraulic lifting foot 414 to move upward to support the equipment. Based on the feedback information from the gyroscope 430, the intelligent control system 5 controls the first hydraulic lifting foot 411, the second hydraulic lifting foot 412, the third hydraulic lifting foot 413, and the fourth hydraulic lifting foot 414 to move up and down until the bottom surface of the equipment is parallel to the ground. The intelligent control system 5 records the up and down movement data of the four hydraulic lifting feet and names them as the initial position of the lifting feet.

[0097] Fifth step: The plane containing the headlight 150 is parallel to the plane containing the headlight detector 170;

[0098] The intelligent control system 5 checks whether the first displacement sensor 113 and the third displacement sensor 133 are set to 1 meter. If both are 1 meter, the plane where the headlight 150 is located is parallel to the plane where the headlight detector 170 is located. If not, it means that the headlight detector 170 is not parallel to the bottom surface. The intelligent control system 5 controls the first hydraulic lifting foot 411, the second hydraulic lifting foot 412, the third hydraulic lifting foot 413, and the fourth hydraulic lifting foot 414 to move up and down until the distance between the first displacement sensor 113 and the third displacement sensor 133 and the plane where the headlight detector 170 is located is 1 meter. The system records the data of the four lifting feet (first hydraulic lifting foot 411, second hydraulic lifting foot 412, third hydraulic lifting foot 413, and fourth hydraulic lifting foot 414) at this time and names it the initial parallel position. At this time, the plane where the headlight 150 is located is parallel to the plane where the headlight detector 170 is located.

[0099] Step 6: The displacement sensor rotates and scans to align the optical axis center of the headlight 150 with the optical axis center of the headlight detector 170 in the vertical direction.

[0100] The intelligent control system 5 first controls the second displacement sensor 123 and the fourth displacement sensor 143 to rotate to a certain angle. Then, the intelligent control system 5 controls the lamp holder moving mechanism 3 to move repeatedly in the left and right directions. The intelligent control system 5 records and calculates whether the distances fed back by the second displacement sensor 123 and the fourth displacement sensor 143 are equal. If they are not equal, the intelligent control system 5 controls the second displacement sensor 123 and the fourth displacement sensor 143 to rotate inward by 1 degree. Then, the intelligent control system 5 controls the lamp holder moving mechanism 3 to move repeatedly in the left and right directions. The intelligent control system 5 records and calculates whether the distances fed back by the second displacement sensor 123 and the fourth displacement sensor 143 are equal. If they are not equal, the second displacement sensor 123 and the fourth displacement sensor 143 continue to rotate inward until the distances fed back by the second displacement sensor 123 and the fourth displacement sensor 143 are equal.

[0101] like Figure 7 As shown, the angle between the second displacement sensor 123 and the optical axis center of the headlight 150 is θ, and the distance between the second displacement sensor 123 and the left side A of the headlight detector frame 171 is L2; ​​the angle between the fourth displacement sensor 143 and the optical axis center of the headlight 150 is α, and the distance between the fourth displacement sensor 143 and the right side B of the headlight detector frame 171 is L1. When θ=α and L1=L2, in the vertical direction, the optical axis center point P of the headlight 150 is aligned with the optical axis center O of the headlight detector 170, and the center coordinate x of the first lamp holder mechanism 1 in the horizontal direction is recorded.

[0102] Because the second displacement sensor 123 and the fourth displacement sensor 143 are located on the horizontal center line S of the plane where the first lamp holder mechanism 1 is located, and are equidistant from the center point P of the first lamp holder mechanism 1, and rotate at the same frequency and angle on the horizontal center line S; and because the optical axis center of the headlight 150 coincides with the center point P of the first lamp holder mechanism 1, that is, when the second displacement sensor 123 and the fourth displacement sensor 143 rotate and scan, the optical axis center of the headlight 150 is always located at the center of the two sensors. Under the premise that the plane where the headlight 150 is located is parallel to the plane where the headlight detector 170 is located, when the angle of the second displacement sensor 123 and the fourth displacement sensor 143 and the distance from the two sides of the plane where the headlight detector 170 is located are equal, the optical axis center point P of the headlight 150 can be made to coincide with the optical axis center O of the headlight detector 170 in the vertical direction.

[0103] The intelligent control system 5 controls the lamp holder moving mechanism 3 to move upward a certain distance, repeats the above steps, and finds the horizontal center coordinate x1 of the first lamp holder mechanism 1 again. When x = x1, the horizontal center coordinate of the first lamp holder mechanism 1 is determined to be x. When x ≠ x1, all the above steps are repeated until x = x2 or x2 = x1, at which point the horizontal center coordinate is determined to be x or x1.

[0104] The center coordinate of the first lamp holder mechanism 1 in the horizontal direction is determined by repeatedly searching and confirming it to be x. This is to avoid errors caused by the side deformation of the headlight detector 170.

[0105] Step 7: The displacement sensor rotates and scans to align the optical axis center of the headlight 150 with the optical axis center of the headlight detector 170 in the horizontal direction.

[0106] Similarly, the intelligent control system 5 controls the lamp holder moving mechanism 3 to move repeatedly along the up and down direction. The first displacement sensor 113 and the third displacement sensor 133 rotate and scan at the same angle from a certain angle to the minimum angle. When the first displacement sensor 113 and the third displacement sensor 133 rotate at the same angle and are equidistant from the upper and lower edges of the headlight detector 170, the optical axis center point P of the headlight 150 is aligned with the optical axis center O of the headlight detector 170 in the horizontal direction. The center coordinate y of the first lamp holder mechanism 1 in the vertical direction is recorded. The center coordinate y in the vertical direction is also found multiple times to avoid errors caused by the side deformation of the headlight detector 170.

[0107] At this time, in the vertical direction, the optical axis center point P of the headlight 150 is aligned with the optical axis center O of the headlight detector 170, and in the horizontal direction, the optical axis center point P of the headlight 150 is aligned with the optical axis center O of the headlight detector 170, that is, the optical axis center of the calibrator coincides with the optical axis center of the headlight detector 170.

[0108] Step 8: Calibrate the 170-sided headlight tester;

[0109] The operator adjusts the brightness and color temperature parameters of the headlight 150 through the intelligent control system 5 to calibrate the high beam and low beam intensity parameters; the intelligent control system 5 uses the lamp holder rotation mechanism 2 to make the headlight 150 complete a 2° left and right rotation movement to calibrate the beam intensity of the headlight detector 170 at different angles; the intelligent control system 5 controls the first hydraulic lifting foot 411 and the fourth hydraulic lifting foot 414 to move upward simultaneously through the integrated adjustment mechanism 4, such as... Figure 8 As shown, the headlight is tilted 2° up and down by 150° to calibrate the beam intensity of the headlight detector at different angles (up and down) by 170°. β is the angle between the bottom surface of the calibrator and the horizontal plane.

[0110] Example 3

[0111] Since the optical axis center of the headlight detector 170 is not entirely located at the center of the headlight detector frame 171, and the optical axis center of part of the headlight detector 170 is located at the center of the headlight detector glass outer screen 181 within the headlight detector frame 171, this embodiment 3 provides a calibration method for locating the optical axis center of the headlight detector 170 within the headlight detector glass outer screen 181, including the following steps:

[0112] The first step is that the optical axis center of the headlight 150 coincides with the center of the first lamp holder mechanism 1, which is the same as in embodiment 2;

[0113] The second step is to preheat the equipment and restore it to its initial position, which is the same as in Example 2.

[0114] Third step: The center line of the plane where the headlight 150 is located is parallel to the plane where the headlight detector 170 is located, the same as in Example 2;

[0115] Fourth step: The bottom surface of the calibrator is parallel to the ground, the same as in Example 2;

[0116] Fifth step: The plane where the headlight 150 is located is parallel to the plane where the headlight detector 170 is located, the same as in Example 2;

[0117] Step 6: The displacement sensor rotates and scans to align the optical axis center of the headlight 150 with the optical axis center of the headlight detector 170 in the vertical direction.

[0118] While the intelligent control system 5 controls the lamp holder moving mechanism 3 to move repeatedly along the left and right directions, the intelligent control system 5 also controls the second displacement sensor 123 and the fourth displacement sensor 143 to scan inward along the horizontal center line S. That is, for every left and right movement of the lamp holder moving mechanism 3, the angle of the second displacement sensor 123 and the fourth displacement sensor 143 decreases by one degree, and the distance fed back by the two sensors is recorded. When the first data of the same angle and the same distance are obtained, such as... Figure 6 As shown, θ=α, L1=L2, at this time the optical axis center point P of the headlight 150 is aligned with the center O of the headlight detector frame 171; continue scanning until the second data with the same angle and the same distance is obtained, as shown. Figure 9 As shown, the angle between the second displacement sensor 123 and the center of the optical axis of the headlight 150 is θ', and the distance between the second displacement sensor 123 and the left side A' of the headlight detector frame 171 is L4; the angle between the fourth displacement sensor 143 and the center of the optical axis of the headlight 150 is α', and the distance between the fourth displacement sensor 143 and the right side B' of the headlight detector frame 171 is L3. θ'=α', L3=L4, at this time the center point P of the optical axis of the headlight 150 is aligned with the center O' of the headlight detector glass outer screen 181, and the center coordinate x of the first lamp holder mechanism 1 in the horizontal direction is recorded.

[0119] Step 7: The displacement sensor rotates and scans to align the optical axis center of the headlight 150 with the optical axis center of the headlight detector 170 in the horizontal direction.

[0120] Similarly, the intelligent control system 5 controls the lamp holder moving mechanism 3 to move repeatedly along the up and down direction. The first displacement sensor 113 and the third displacement sensor 133 scan from a certain angle to the smallest angle. When the first angle and distance data are the same, the scanning continues until the second angle and distance data are the same. Then the scanning stops and the center coordinate y of the first lamp holder mechanism 1 in the vertical direction is recorded.

[0121] At this point, align the optical axis center of the calibrator with the optical axis center of the headlight detector 170.

[0122] Step 8: Calibrate the 170-sided headlight tester, the same as in Example 2.

[0123] Example 4

[0124] The difference between Example 4 and Example 1 lies in the lamp holder mechanism.

[0125] The overall structure of the intelligent calibrator for headlight tester calibration in this embodiment includes: a second lamp holder structure 21, a lamp holder rotation mechanism 2, a lamp holder moving mechanism 3, a comprehensive adjustment mechanism 4, and an intelligent control system 5.

[0126] like Figure 10 and 11 As shown, the second lamp holder mechanism 21 includes: a fifth displacement sensor mechanism 214, a circular sawtooth track 215, a second headlight 250, a headlight moving mechanism 160, a rotating mechanism 260, and a sawtooth rolling device 270. The structure of the headlight moving mechanism 160 is the same as in Embodiment 1, and will not be described again here.

[0127] The rotating mechanism 260 is connected to the circular sawtooth track 215 via sawtooths and is used to control the rotation of the circular sawtooth track 215; the headlight moving mechanism 160 is mechanically connected to the second headlight 250 and is used to adjust the optical axis center of the second headlight 250; the circular sawtooth track 215 is connected to the sawtooth rolling device 270 and is used to control the rotation and movement path of the fifth displacement sensor mechanism 214; the optical axis center of the second headlight 250 is located at the center of the circular sawtooth track 215; the fifth displacement sensor mechanism 214 is fixed inside the sawtooth rolling device 270.

[0128] like Figure 11 As shown, the fifth displacement sensor mechanism 214 includes a sixth hydraulic device 211 connected to a fifth rotating mechanism 212, and a fifth displacement sensor 213 located on the fifth rotating mechanism 212. The sixth hydraulic device 211 is a drive mechanism.

[0129] The rotating mechanism 260 uses a circular sawtooth track 215 to make the fifth displacement sensor 213 stop at points A, B, C, and D on the center line of the second lamp holder mechanism 21, and the fifth displacement sensor 213 can rotate along the center line.

[0130] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An intelligent calibrator for headlamp detector calibration, characterized in that, It comprises, from top to bottom, a lamp holder mechanism, a lamp holder rotating mechanism (2), a lamp holder moving mechanism (3), and a comprehensive adjusting mechanism (4); it also comprises an intelligent control system (5); Wherein: The lamp holder rotating mechanism (2) is connected with the lamp holder mechanism, for controlling the lamp holder mechanism to rotate in the horizontal direction; the lamp holder moving mechanism (3) is connected with the lamp holder rotating mechanism (2), for controlling the lamp holder mechanism to move in the horizontal and vertical directions; the comprehensive adjusting mechanism (4) is connected with the lamp holder moving mechanism (3), for controlling the lamp holder mechanism to move in the horizontal direction, the front-back direction, and the pitching direction; the intelligent control system (5) is electrically connected with the lamp holder mechanism, the lamp holder rotating mechanism (2), the lamp holder moving mechanism (3), and the comprehensive adjusting mechanism (4) respectively, for controlling the movement of the lamp holder mechanism, the lamp holder rotating mechanism (2), the lamp holder moving mechanism (3), and the comprehensive adjusting mechanism (4) respectively; The lamp holder mechanism comprises a headlamp (150), a headlamp moving mechanism (160), and at least one displacement sensor mechanism; the headlamp moving mechanism (160) is connected with the headlamp (150), for controlling the headlamp (150) to move forward, backward, left, and right; each displacement sensor mechanism is on the horizontal middle line and / or the vertical center of the optical axis center of the headlamp (150); Each displacement sensor mechanism comprises a driving mechanism, a rotating mechanism, and a displacement sensor; the driving mechanism is used to rotate the displacement sensor through the rotating mechanism; The comprehensive adjusting mechanism (4) comprises a first hydraulic lifting foot (411), a second hydraulic lifting foot (412), a third hydraulic lifting foot (413), a fourth hydraulic lifting foot (414), a first electric wheel (421), a second electric wheel (422), a third electric wheel (423), a fourth electric wheel (424), and a gyroscope (430); The first hydraulic lifting foot (411), the second hydraulic lifting foot (412), the third hydraulic lifting foot (413), the fourth hydraulic lifting foot (414), the first electric wheel (421), the second electric wheel (422), the third electric wheel (423), and the fourth electric wheel (424) are evenly distributed on the bottom surface of the calibrator; the gyroscope (430) is located inside the device and is parallel to the bottom surface; the first electric wheel (421), the second electric wheel (422), the third electric wheel (423), and the fourth electric wheel (424) control the lamp holder mechanism to move forward, backward, left, and right; the first hydraulic lifting foot (411), the second hydraulic lifting foot (412), the third hydraulic lifting foot (413), and the fourth hydraulic lifting foot (414) control the lamp holder mechanism to move up and down and pitch.

2. The intelligent calibrator for headlamp detector calibration of claim 1, wherein, The headlamp moving mechanism (160) comprises, from bottom to top, a first hydraulic device (161) and a headlamp up-down moving device (162); above the headlamp up-down moving device (162), from left to right, there are a second hydraulic device (163) and a headlamp left-right moving device (164) in sequence; the headlamp left-right moving device (164) is provided with a headlamp fixing device (165); The first hydraulic device (161) is used to move the headlamp (150) up and down by the headlamp up and down moving device (162); the second hydraulic device (163) is used to move the headlamp (150) left and right by the headlamp left and right moving device (164).

3. The intelligent calibrator for headlamp detector calibration of claim 1, wherein, The lamp holder mechanism is a first lamp holder mechanism (1), which comprises a headlamp (150), and first, second, third and fourth displacement sensor mechanisms (110, 120, 130 and 140) arranged above, right, below and left of the headlamp (150) respectively; the headlamp (150) is provided with a headlamp moving mechanism (160); The first displacement sensor mechanism (110) comprises, from top to bottom, a first driving mechanism (111), a first rotating mechanism (112) and a first displacement sensor (113); the first driving mechanism (111) is used to rotate the first displacement sensor (113) through the first rotating mechanism (112); The second displacement sensor mechanism (120) comprises, from top to bottom, a second driving mechanism (121), a second rotating mechanism (122) and a second displacement sensor (123); the second driving mechanism (121) is used to rotate the second displacement sensor (123) through the second rotating mechanism (122); The third displacement sensor mechanism (130) comprises, from top to bottom, a third driving mechanism (131), a third rotating mechanism (132) and a third displacement sensor (133); the third driving mechanism (131) is used to rotate the third displacement sensor (133) through the third rotating mechanism (132); The fourth displacement sensor mechanism (140) comprises a fourth driving mechanism (141), a fourth rotating mechanism (142) and a fourth displacement sensor (143); the fourth driving mechanism (141) is used to rotate the fourth displacement sensor (143) through the fourth rotating mechanism (142); The first displacement sensor (113) and the third displacement sensor (133) rotate at the same frequency and angle; the second displacement sensor (123) and the fourth displacement sensor (143) rotate at the same frequency and angle.

4. The intelligent calibrator for headlamp detector calibration of claim 1, wherein, The lamp holder mechanism is a second lamp holder mechanism (21), which comprises a fifth displacement sensor mechanism (214), a circular sawtooth track (215), a second headlamp (250), a headlamp moving mechanism (160), a rotating mechanism (260) and a sawtooth rolling device (270); The rotating mechanism (260) is connected with the circular sawtooth track (215) through a sawtooth for controlling the rotation of the circular sawtooth track (215); the headlamp moving mechanism (160) is mechanically connected with the second headlamp (250) for adjusting the optical axis center of the second headlamp (250); the circular sawtooth track (215) is connected with the sawtooth rolling device (270) for controlling the moving path of the fifth displacement sensor mechanism (214); the optical axis center of the second headlamp (250) is located at the center of the circular sawtooth track (215); and the fifth displacement sensor mechanism (214) is fixed in the sawtooth rolling device (270).

5. The intelligent calibrator for headlamp detector calibration of claim 1, wherein, The lamp holder rotating mechanism (2) comprises a fifth driving mechanism (210) and a rotating transmission mechanism (220), and the fifth driving mechanism (210) rotates the lamp holder mechanism left and right in the horizontal direction through the rotating transmission mechanism (220).

6. The intelligent calibrator for headlamp detector calibration of claim 1, wherein, The lamp holder moving mechanism (3) comprises an up-down moving mechanism (310), a third hydraulic device (331), a front-back moving mechanism (332), a fourth hydraulic device (321), a left-right moving mechanism (322) and a fifth hydraulic device (311); the third hydraulic device (331) is connected with the front-back moving mechanism (332), the fourth hydraulic device (321) is connected with the left-right moving mechanism (322) and is located on the front-back moving mechanism (332), the up-down moving mechanism (310) is located above the left-right moving mechanism (322), the third hydraulic device (331) moves the lamp holder mechanism forward and backward through the front-back moving mechanism (332), the fourth hydraulic device (321) moves the lamp holder mechanism left and right through the left-right moving mechanism (322), and the up-down moving mechanism (310) moves the lamp holder mechanism up and down.

7. An intelligent calibration method for headlamp detector calibration, which is suitable for the intelligent calibrator for headlamp detector calibration according to claim 2, characterized in that, The method comprises the following steps: In the first step, the optical axis center of the headlamp (150) is coincided with the center of the first lamp holder mechanism (1); In the second step, the equipment is preheated, and the equipment is set to return to the initial position; In the third step, the center line of the plane where the headlamp (150) is located is parallel to the plane where the headlamp detector (170) is located; In the fourth step, the bottom surface of the calibrator is parallel to the ground; In the fifth step, the plane where the headlamp (150) is located is parallel to the plane where the headlamp detector (170) is located; In the sixth step, the displacement sensor is rotated and scanned, so that the optical axis center of the headlamp (150) is vertically aligned with the optical axis center of the headlamp detector (170); In the seventh step, the displacement sensor is rotated and scanned, so that the optical axis center of the headlamp (150) is horizontally aligned with the optical axis center of the headlamp detector (170); In the eighth step, the surface of the headlamp detector (170) is calibrated.

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