JP4838663B2 - Headlamp center point detection method and apparatus for mechanical facing - Google Patents

Description

The present invention relates to a method and apparatus for detecting a headlamp center point for mechanical alignment, and in particular, a mechanical alignment head capable of automatically detecting a reference point of a headlight image of a vehicle under test received by a headlight tester. The present invention relates to a lamp center point detection method and apparatus.

In order to inspect and adjust the optical axis and luminosity of the headlight (headlight) of the vehicle under test using the headlight tester, first, align the headlight tester with the headlight of the vehicle under test (mechanical It is necessary to perform (facing). Conventionally, this mechanical alignment is performed by generally aligning the headlight of the vehicle under test with the headlight tester, turning on the headlight of the vehicle under test, and displaying the headlight image of the vehicle under test as the headlight tester. A reference point corresponding to a reference point provided on the headlight of the vehicle under test on the headlight image received on the front-facing screen (hereinafter referred to as a mechanical front-facing screen) . Find the headlamp center point) and move the headlight tester up / down / left / right so that the headlamp center point for mechanical alignment on this image matches the center point on the screen for alignment. Had gone by. As such a headlight tester, there is a conventional one disclosed in Patent Document 1.
JP 2005-255004 A

However, it takes time to find the center point of the headlamp for mechanical facing on the headlight image received on the facing screen for all the vehicles under test. Therefore, the headlight image received on the facing screen of the headlight tester is read by the CCD camera, the headlamp center point for mechanical facing is calculated from the read image, and the calculated mechanical facing is calculated . Although the headlight tester can be moved based on the center point of the headlamp for the headlight, the contour shape of the headlight image changes depending on the light and dark threshold values used to determine the contour shape of the headlight image. In addition, the headlight image cover and the actual headlight contour shape 22 as shown in FIG. Unlike the headlight image contour 23, therefore headlamp for actual mechanical positive pairs on the headlight image And the center point 24 and the headlamp center point 25 for the computed mechanical positive pair has a drawback that may be different.

  The present invention eliminates the above-mentioned drawbacks.

The headlamp center point detection device for mechanical alignment according to the present invention includes the shape information of the headlight of one or a plurality of reference vehicles and the mechanical correctness on the shape information corresponding to the reference point of the headlight of the reference vehicle. From the storage unit that stores the pair of headlamp center points for pairing, the camera that detects the shape information of the headlight of the vehicle under test, and the shape information of the headlight of the reference vehicle stored in the storage unit, A headlight of a reference vehicle that matches or resembles the headlamp center point for mechanical alignment of the vehicle under test is detected by detecting the same or similar shape information of the headlight of the vehicle under test detected by the camera. And a means for setting the shape information to be equal to the center point of the headlamp for mechanical facing stored in pairs.

The headlamp center point detection device for mechanical alignment according to the present invention includes the shape information of the headlight of one or a plurality of reference vehicles and the mechanical correctness on the shape information corresponding to the reference point of the headlight of the reference vehicle. A storage unit that stores a pair of headlamp center points for use and vehicle type information of the reference vehicle as a set, and a vehicle that matches the vehicle type information of the vehicle under test is detected from the vehicle type information of the reference vehicle stored in the storage unit. Vehicle type information detecting means, a camera for detecting the shape information of the headlight of the vehicle under test, and the shape information of the headlight of the reference vehicle stored in combination with the vehicle type information detected by the vehicle type information detecting means, detecting a match or similar to the shape information of the headlight of the trial vehicle detected by the camera, the target attempts vehicle mechanical positive versus headlamp center point above matching or similar based on for Characterized in that the more the means allowed to set as equal to the headlamp center point for mechanical positive pairs allowed stored in the shape information and a set of headlights of the vehicle.

The headlamp center point detection method for mechanical alignment according to the present invention is a mechanical alignment corresponding to the reference point of the headlight of the reference vehicle corresponding to the shape information of the headlight of one or more reference vehicles serving as a reference . A first step of memorizing a headlamp center point for a pair, a second step of detecting shape information of the headlight of the vehicle under test by a camera, and a shape of the headlight memorized in the first step A third step of detecting information matching or similar to the shape information of the headlight detected in the second step from the information, and a mechanical stored in pairs with the shape information of the matching or similar headlight the headlamp center point for confronting characterized by comprising further a fourth step allowed to set as equal to the headlamp center point for mechanical positive said pair of the trial vehicle.

The headlamp center point detection method for mechanical alignment according to the present invention is a mechanical alignment corresponding to the reference point of the headlight of the reference vehicle corresponding to the shape information of the headlight of one or more reference vehicles serving as a reference . A first step of storing the headlamp center point for the vehicle and the vehicle type information of the reference vehicle in pairs, a second step of detecting the headlight shape information of the vehicle under test by a camera, and the stored reference vehicle The vehicle type information that matches the vehicle type information of the vehicle under test is detected, and the shape information of the headlight of the reference vehicle stored in combination with the detected vehicle type information is detected in the second step. the third step and, the identical or similar mechanically directly facing the target attempts the headlamp center point for storing shape information of the headlight and set in detecting a match or similar to the headlight shape information Wherein the more becomes possible a fourth step allowed to set as equal to the headlamp center point for both the mechanical positive pairs.

  The shape information of the vehicle headlight is a contour shape of the headlight.

  A light facing screen for receiving the light of the vehicle headlight is further provided, and the vehicle headlight light on the light facing screen is detected by the camera from the shape information of the vehicle headlight. It is a contour shape of a headlight image set from light reception.

  A light facing screen for receiving the light of the vehicle headlight is further provided, and the vehicle headlight light on the light facing screen is detected by the camera from the shape information of the vehicle headlight. It is an illuminance pattern within a contour shape of a headlight image set from light reception.

The headlamp center point detection device for mechanical alignment according to the present invention is a temporary mechanical calculation calculated based on the shape information of the headlight of one or a plurality of reference vehicles and the shape information of the headlights of the reference vehicle. A storage unit that stores in pairs a displacement amount between the headlamp center point for direct facing and the headlamp center point for true mechanical facing on the shape information corresponding to the reference point of the headlight of the reference vehicle And a camera for detecting the shape information of the headlight of the test vehicle, and from the shape information of the headlight of the reference vehicle stored in the storage unit, the shape information of the headlight of the test vehicle detected by the camera means for detecting a match or similar, calculates the headlamp center point for the mechanical positive-to provisional from the shape information of the headlight of the target attempts vehicle detected by the camera, the mechanical positive tentative In that the headlamp center point of use, moved by a displacement amount of the headlamp center point for mechanical positive pair of reference vehicle stored in the shape information and pair of headlights of the identical or similar to the reference vehicle and the movement Is set to be equal to the true center point of the headlamp for true mechanical facing of the headlight of the vehicle under test.

The headlamp center point detection device for mechanical alignment according to the present invention is a temporary mechanical calculation calculated based on the shape information of the headlight of one or a plurality of reference vehicles and the shape information of the headlights of the reference vehicle. and displacement of the headlamp center point for true mechanical positive pairs on the shape information headlamp center point and corresponding to the reference point of the headlight of the reference vehicle for confronting, vehicle type information of the reference vehicle And a vehicle type information detecting means for detecting a vehicle type information of the reference vehicle stored in the storage unit that matches the vehicle type information of the vehicle under test, and a headlight of the vehicle under test. The shape of the headlight of the vehicle under test detected by the camera from the shape information of the headlight of the reference vehicle stored in combination with the camera type information detected by the vehicle type information detecting means and the vehicle type information detecting means. Calculating means for detecting a match or similar to the information, the headlamp center point for temporary mechanical positive pairs from the shape information of the headlight of the target attempts vehicle detected by the camera, the mechanical of the temporary The headlamp center point for the right-facing head is moved by the amount of displacement of the headlight center point for the head-to-head mechanical reference of the reference vehicle stored in combination with the shape information of the headlight of the reference vehicle that is the same as or similar to that of the reference vehicle. And a means for setting the calculated point to be equal to the center point of the headlamp for true mechanical facing of the headlight of the vehicle under test.

The headlamp center point detecting device for mechanical facing according to the present invention is for temporary mechanical facing calculated based on the vehicle type information of one or more reference vehicles and the shape information of the headlights of the reference vehicles . a storage unit for storing a displacement amount between the headlamp center point for true mechanical positive pairs on the shape information headlamp center point and corresponding to the reference point of the headlight of the reference vehicle by a pair of said A vehicle type information detecting means for detecting a vehicle type information of the reference vehicle stored in the storage unit that matches the vehicle information of the vehicle under test, a camera for detecting shape information of a headlight of the vehicle under test, and the camera A headlamp center point for temporary mechanical alignment is calculated from the detected headlight shape information of the vehicle under test, and this temporary mechanical alignment headlamp center point is calculated by the vehicle type information detection means. Detected vehicle type Moved by a displacement amount of the headlamp center point for mechanical positive pair of reference vehicle stored in broadcast paired headlamp center for true mechanical positive pairs of points that the mobile headlights above the trial vehicle It is characterized by comprising means for setting as equal to a point.

  The shape information of the vehicle headlight is a contour shape of the headlight.

  The vehicle headlight shape information is a contour shape of a headlight image detected by a camera.

  The vehicle headlight shape information is an illuminance pattern within a contour shape of a headlight image detected by a camera.

The temporary mechanical facing headlamp center point is an area center point calculated from the contour shape.

The temporary mechanical facing headlamp center point is an illuminance barycentric point calculated from an illuminance pattern in the contour shape of the headlight image.

According to the method and apparatus for detecting the headlamp center point for mechanical alignment of the present invention, it is possible to automatically detect the headlamp center point for mechanical alignment on the headlight image of various shaped headlights. Therefore, the burden on the inspector can be reduced, and the inspection and adjustment time can be shortened. Further, as the calculated mechanical positive to reference the headlamp center point for mechanical positive pairs with accurate than headlamp center point for, since it is possible to perform the optical axis, light intensity inspection and adjustment of the headlight, There is a great advantage that the accuracy of optical axis / luminosity inspection and adjustment can be improved.

  Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 3, the headlamp center point detection device for mechanical alignment according to the present invention includes a housing 1 having a video reading mechanism unit 1 a and an arithmetic processing unit 1 b, and the housing 1. The casing 1 is provided on a support column 3 so as to be movable up and down, and the support column 3 is provided on a cart 4 that can be moved left and right with respect to the floor surface. ing.

  As shown in FIG. 2, the video reading mechanism 1a includes a condensing lens 5 such as a Fresnel lens provided on the front surface of the housing 1 for condensing light from the headlight of the vehicle under test. The half mirror 6 provided at an inclination in the inner intermediate portion of the housing 1, the condensing lens portion 7 for facing provided in the upper intermediate portion of the housing 1, and the headlight reflected in the half mirror 6 A light facing screen 8 that receives a headlight image through the condenser lens unit 7 and a CMOS camera or a CCD camera that detects an image on the light facing screen 8 through a reflecting mirror 9. A counter camera 10, an optical axis light intensity inspection / adjustment screen 17 for receiving the light converged from the condenser lens 5, provided in the rear of the housing 1, and the interior of the housing 1 Above the middle upper part The more the light distribution camera 18, such as a CMOS camera or CCD camera allowed to detect the receiving of the light the screen 17.

Further, as shown in FIG. 3, the arithmetic unit 1b performs an image arithmetic process including an image reading unit 11 for taking in an output from the facing camera 10 as a file, and a CPU and a main memory. An arithmetic processing unit 12, a storage unit 13 for storing the read video, and the like, a headlight video contour shape is set from the headlight video, and the headlight video is determined from the set contour shape and the illumination pattern of the headlight video. The program unit 14 for calculating the center point of the headlamp for mechanical alignment above, the program unit 15 for collation by the pattern matching processing of the illuminance pattern of the contour shape and the headlight image, and the display control unit 16 of the display unit 2 An image reading unit 19 for capturing the output from the light distribution camera 18 as a file, optical axis inspection, A program portion 20, such as body movement, the more an operation switch section 21.

  The storage unit 13 includes a memory such as a RAM and a ROM, and the program units 14, 15, and 20, which are software, include a floppy (registered trademark) disk and a CD-ROM, and the program units 14, 15, and 20 include arithmetic processing. The arithmetic processing unit is configured by a DRAM, a hard disk or the like, and the memory of the storage unit 13 functions as a branch of the main memory.

In the mechanically facing headlamp center point detection device of the present invention, first, a reference vehicle (not shown) is stopped at a predetermined position in front of the housing 1, and the headlight of the test vehicle is turned on. The headlight image received on the light facing screen 8 is taken into the image reading unit 11 by the facing camera 10, and the headlight image is input to the display unit via the arithmetic processing unit 12 and the display control unit 16. 2, and the housing 1 is moved up, down, left, and right so that the headlight image is displayed almost at the center of the display unit 2 by a manual or automatic tracking mechanism (not shown).

Next, the contour shape of the headlight image is set by the arithmetic processing unit 12 using the program unit 14 based on the video read by the facing camera 10, and, for example, the area center of the set contour shape is set. The point is calculated as a headlamp center point for temporary mechanical alignment on the headlight image, and the calculated headlamp center point for temporary mechanical alignment is displayed on the display unit 2 together with the headlight image. Display.

Instead of calculating the area center point of the contour shape of the headlight image as the headlamp center point for temporary mechanical alignment, the illuminance barycentric point of the illuminance pattern in the contour shape of the headlight image is temporarily calculated. It may be calculated as the center point of the headlamp for mechanical alignment.

Examiner, such as by finding the actual headlamp center point for true mechanical positive pairs on the headlight image displayed on the display unit 2 visually the actual true mechanical positive pairs for headlamp It is determined whether or not the center point and the calculated headlamp center point for temporary mechanical alignment match, and if they match, the headlamp center point for temporary mechanical alignment is determined. It is set to be equal to the actual true mechanical headlamp center point, and is stored in the storage unit 13 together with the headlight image contour shape corresponding to the true mechanical headlamp center point. If it does not match, for example, by touching the display unit 2 with a touch pen or the like, the actual true mechanical headlamp center point is stored in the storage unit 13 and the contour of the headlight image is displayed. shape Both allowed to memory. Thereafter, the housing 1 is moved up, down, left and right so that the center point of the true mechanical headlamp stored in the storage unit 13 and the center of the display unit 2 coincide with each other. Then, the next step is the headlight optical axis / luminosity inspection and adjustment.

A headlight image corresponding to the center point of the actual mechanical headlamp on the image may be stored in the storage unit 13.

Further, without moving the housing 1 up and down and left and right so that the center point of the true mechanical headlamp stored in the storage unit 13 and the center point of the display unit 2 coincide with each other, You may make it perform the optical axis and luminous intensity test | inspection and adjustment which are the following processes on the basis of the memorize | stored true mechanical headlamp center point.

Furthermore, omitting to the operation of the headlamp center point for mechanical positive pairs provisional examiner actual mechanical positive pairs for the headlamp center point and the calculated mechanical positive pairs for headlamp Instead of determining whether or not the center points coincide with each other, the actual true mechanical headlamp center point may be stored in the storage unit 13 together with the outline shape of the headlight image.

Further, in addition to indicating the center point of the headlamp for mechanical alignment on the image with a touch pen, the coordinates on the display unit 2 may be directly input to the storage unit 13 and visually stored.

Next, in the first test vehicle, the contour shape of the headlight image of the first test vehicle is set in the same manner as described above, and the contour shape of the set headlight image is set by the program 15. The contour shape of the headlight image that has already been stored in the storage unit 13 is collated by the pattern matching process in the arithmetic processing unit 12, and if the degree of matching is higher than a certain level, the headlamp center point for mechanical positive pairs stored in the contour shape and a pair of headlights image that has been the storage, the first head for mechanical positive pairs on the headlight image of the trial vehicle For example, it is determined that it is the same as the lamp center point.For example, the stored contour shape of the headlight image and the contour shape of the headlight image of the vehicle under test are most closely matched. When superposed in the stomach condition, point above the the on the contour shape of the headlight image of the object to be trial vehicles overlapping the headlamp center point for mechanical positive pairs on the contour of the headlight image which has been the storage and Heddora pump center point for mechanical positive pairs on the headlight image of trial vehicles, allowed Show headlamp center point for the mechanical face an display unit 2, based on the center point, in a subsequent step The optical axis / luminance adjustment and inspection of a certain headlight are performed.

The area center point calculated from the contour shape of the stored headlight image and the area center point calculated from the contour shape of the headlight image of the vehicle under test are made to coincide with each other. When the contour shape of the headlight image and the contour shape of the headlight image of the vehicle under test are superimposed, the headlamp center point for mechanical alignment on the contour shape of the stored headlight image a point on the contour of the headlight image of the object to be trial vehicle may Heddora amplifier central point for mechanical positive pairs on the headlight image of the object to be trial vehicles overlapping the.

Further, an illuminance barycentric point calculated from the illuminance pattern in the contour shape of the stored headlight image and an illuminance barycentric point calculated from the illuminance pattern in the contour shape of the headlight image of the vehicle under test are stored. When the contour shape of the stored headlight image is overlapped with the contour shape of the headlight image of the vehicle under test, the mechanical shape on the stored contour shape of the headlight image is superimposed. headlamp overlaps the center point of the headlight image of the object to be trial vehicle a point on the contour shape may be Heddora amplifier central point for mechanical positive pairs on the headlight image of the object to be trial vehicle for confronting.

If the degree of coincidence does not reach a certain level as a result of collation, for example, the fact is displayed on the display unit 2 and the inspector is instructed to input the center point of the headlamp for mechanical alignment. finds the actual headlamp center point for mechanical positive pairs in the same manner as described above to the display unit 2, the contour of the actual mechanical positive headlamp center point for pair in the storage unit 13 the headlight image It is memorized together with the shape, and the headlight optical axis / luminosity adjustment and inspection, which are the next steps, are performed on the basis of the mechanically facing headlamp center point. A headlight image corresponding to the center point of the actual mechanical headlamp on the image may be stored in the storage unit 13.

  The first test vehicle is a reference vehicle for the second and subsequent test vehicles.

Further, in the second and subsequent test vehicles, the pattern matching between the contour shape of the headlight image of the test vehicle and the contour shape of each headlight already stored in the storage unit 13 is performed in the same manner as described above. If the degree of coincidence is higher than a certain level as a result of the collation, the headlamp center point for mechanical alignment that is stored in a pair with the contour shape of the stored headlight image is used as the target. Determine the headlamp center point for mechanical alignment on the headlight image of the test vehicle, for example, the stored contour shape of the headlight image and the contour shape of the headlight image of the test vehicle. most when the degree of coincidence superposed in a high state, the stored overlapping the headlamp center point for mechanical positive pairs on the contour of the headlight image had headlights above the trial vehicle A point on the image of the contour and Heddora pump center point for mechanical positive pairs on the headlight image of the object to be trial vehicle, based on this center point, the optical axis, light intensity adjustment of the headlight which is a later step And do inspections.

As described above, the area center point calculated from the contour shape of the stored headlight image is matched with the area center point calculated from the contour shape of the headlight image of the test vehicle, and When the contour shape of the stored headlight image and the contour shape of the headlight image of the vehicle under test are superimposed , the head for mechanical alignment on the contour shape of the stored headlight image a point overlapping with the lamp center point of the headlight image of the object to be trial vehicle on the contour shape may be Heddora amplifier central point for mechanical positive pairs on the headlight image of the object to be trial vehicle.

Further, an illuminance barycentric point calculated from the illuminance pattern in the contour shape of the stored headlight image and an illuminance barycentric point calculated from the illuminance pattern in the contour shape of the headlight image of the vehicle under test are stored. When the contour shape of the stored headlight image is overlapped with the contour shape of the headlight image of the vehicle under test, the mechanical shape on the stored contour shape of the headlight image is superimposed. headlamp overlaps the center point of the headlight image of the object to be trial vehicle a point on the contour shape may be Heddora amplifier central point for mechanical positive pairs on the headlight image of the object to be trial vehicle for confronting.

If the degree of matching does not reach a certain level as a result of the collation, for example, the fact is displayed on the display unit 2 in the same manner as described above, and the headlamp center point for mechanical alignment is displayed to the inspector. issues an input instruction, the examiner above and find the actual headlamp center point for mechanical positive pairs on the display unit 2 in the same manner, the storage unit headlamp center point for the actual mechanical positive pairs 13 is stored together with the outline shape of the headlight image, and the headlight optical axis / luminance adjustment and inspection, which are the next steps, are performed on the basis of the mechanically facing headlamp center point. A headlight image corresponding to the center point of the actual mechanical headlamp on the image may be stored in the storage unit 13.

  Similarly to the above, in this case, the second and subsequent test vehicles are the reference vehicles for the subsequent test vehicles.

  The display unit 2 is divided into two parts, one of the display units displays the headlight images of the first, second,... Other test vehicles, and the other display unit has the high degree of coincidence. A headlight image corresponding to the contour shape of the light image may be displayed.

  In addition, the storage unit 13 stores the name of the vehicle model in which the headlight corresponding to the headlight image is normally mounted together with the contour shape of the headlight image, and the contour shape of the headlight image having a high degree of coincidence is stored in the other display unit 2. One or more vehicle model names corresponding to may be displayed.

In addition, the headlight contour shape described in advance in the storage unit 13 in the specifications of the headlight of the reference vehicle, and the headlamp center point for mechanical alignment on the contour shape of the headlight of the reference vehicle Of the headlight image of the vehicle under test, the contour shape of the headlight image already stored in the storage unit 13, the contour shape of the headlight, etc. Information may be collated by pattern matching processing.

Further, the storage unit 13 previously stores headlight shape information including an illuminance pattern within the contour shape of the headlight image of the reference vehicle, and a headlamp for mechanical facing on the contour shape of the headlight of the reference vehicle. The center point is stored as a pair, and the headlight shape information including the illuminance pattern in the contour shape of the headlight image of the vehicle under test and the headlight shape information already stored in the storage unit 13 are patterned. You may collate by a matching process.

In addition to the headlight shape information of the reference vehicle in the storage unit 13, for example, for temporary mechanical facing calculated from the shape information of the headlight of the reference vehicle as an area center point or an illuminance barycentric point Heddora pump center point and allowed actual storage amount of displacement of the Heddora pump center point for true mechanical positive pair, when setting the contour of the headlight image of the trial vehicle, an area center point from the contour Alternatively, the illuminance barycentric point is also calculated from the illuminance pattern in the contour shape of the headlight image, and this area center point or illuminance barycentric point is set as the headlamp center point for temporary mechanical alignment of the test vehicle. the headlamp center point for the temporary mechanical positive pair, the shape information and a pair of headlights results match degree of checking by the pattern matching processing has been stored above a certain higher the storage unit 13 Only the stored displacement moved, may be allowed to set the point where the movement thereof as equal to true headlamp center point for mechanical positive pair of headlights of the subject trial vehicle.

According to the headlamp center point detecting method and apparatus for mechanically positive pairs of the present invention, automatic headlamp center point for mechanical positive pairs on the headlight image of the headlights of a variety of shapes of the trial vehicle Since it can be detected, the burden on the inspector can be reduced, and the inspection and adjustment time can be shortened. Further, as the calculated mechanical positive to reference the headlamp center point for mechanical positive pairs with accurate than headlamp center point for, since it is possible to perform the optical axis, light intensity inspection and adjustment of the headlight, There is a great advantage that the accuracy of optical axis / luminosity inspection and adjustment can be improved.

Along with the headlamp center point for mechanical alignment, vehicle type information such as the manufacturer name, model name, and model year of the corresponding car is also stored in the storage unit 13 as a set. A vehicle type information detection program for detecting vehicle type information that matches the vehicle type information of the test vehicle is provided, and in addition to the verification of the pattern matching process, the vehicle type information of the test vehicle and the stored vehicle type information are It may also be determined whether or not they match, and the accuracy of the headlamp center point detection for mechanical alignment on the headlight image may be increased.

Further, the items described in the vehicle verification of the test vehicle to be inspected are stored in the storage unit 13 in advance, and the headlamp center point for mechanical alignment on the headlight image of the test vehicle is obtained. At this time, the number plate of the vehicle under test is read with, for example, an automatic reading device, the vehicle type information of the vehicle under test is obtained, and whether or not the vehicle type information of the vehicle under test and the stored vehicle type information match. May be judged.

  Further, the information may be displayed on the display unit 12.

  Before performing the pattern matching process, the vehicle type information detection program first detects the vehicle type information stored in the storage unit 13 that matches the vehicle type information of the vehicle under test. Even if the contour shape of the headlight image of the vehicle under test and the vehicle headlight shape information stored in combination with the vehicle type information detected by the program are collated by the pattern matching process in the arithmetic processing unit 12 Good. In this case, since it is not necessary to collate with the shape information of the headlights of all the vehicles stored in the storage unit 13, the calculation process can be speeded up.

If the reference vehicle having the headlight that matches the headlight of the test vehicle can be identified from the reference vehicles stored in the storage unit 13 only by the vehicle type information of the test vehicle, the pattern matching process is performed. The vehicle type information detection program detects the vehicle type information stored in the storage unit 13 that matches the vehicle type information of the vehicle under test, and detects the headlight image of the vehicle under test. An illuminance centroid point is calculated from the contour shape from the illuminance pattern within the contour shape of the headlight image or from the contour shape of the headlight image . set the Heddora pump center point, the Heddora pump center point for mechanical positive pair of the temporary, and moved by a displacement amount stored in vehicle type information and said pair of reference vehicle, and the movement The may be allowed to set the headlamp center point for true mechanical positive said pair of the trial vehicle.

It is a front view of the headlamp center point detection device for mechanical facing according to the present invention. It is a vertical side view of the housing | casing of the headlamp center point detection apparatus for mechanical facing of this invention. It is a system configuration diagram of an arithmetic processing system of the headlamp center point detecting device for mechanical facing according to the present invention. It is explanatory drawing of the contour shape of the headlight of a vehicle, and the contour shape of the headlight image | video for a calculation.

DESCRIPTION OF SYMBOLS 1 Case 1a Image | video reading mechanism part 1b Arithmetic processing part 2 Display part 3 Support | pillar 4 Cart 5 Condensing lens 6 Half mirror 7 Condensing lens part 8 Light facing screen 9 Reflecting mirror 10 Direct facing camera 11 Image reading part 12 Arithmetic processing unit 13 Storage unit 14 Program unit 15 Program unit 16 Display control unit 17 Light distribution screen 18 Light distribution camera 19 Image reading unit 20 Program unit 21 Operation switch unit 22 Headlight contour shape 23 Headlight video contour shape 24 Headlamp center point for actual mechanical alignment 25 Headlamp center point for calculated mechanical alignment

Claims (18)

A storage unit that stores a pair of headlight shape information on the shape information corresponding to the shape information of the headlight of one or more reference vehicles and the shape information corresponding to the reference point of the headlight of the reference vehicle;
A camera that detects the shape information of the headlight of the vehicle under test;
From the shape information of the headlights of the reference vehicle stored in the storage unit, the same as or similar to the shape information of the headlights of the vehicle under test detected by the camera is detected, and the mechanical correctness of the vehicle under test is detected. And a means for setting the headlamp center point for pairing to be equal to the headlamp center point for mechanical facing stored in pairs with the headlight shape information of the reference vehicle that matches or is similar to the above. Headlamp center point detection device for mechanical facing . The headlight shape information of one or a plurality of reference vehicles, the headlamp center point for mechanical alignment on the shape information corresponding to the reference point of the headlight of the reference vehicle, and the vehicle type information of the reference vehicle are combined. Storage unit stored in
Vehicle type information detecting means for detecting the vehicle type information of the reference vehicle stored in the storage unit, which matches the vehicle type information of the vehicle under test;
A camera for detecting the shape information of the headlight of the vehicle under test;
From the shape information of the headlights of the reference vehicle stored in combination with the vehicle type information detected by the vehicle type information detection means, the one that matches or is similar to the shape information of the headlights of the vehicle under test detected by the camera is detected. It is assumed that the headlamp center point for mechanical facing of the vehicle under test is equal to the headlamp center point for mechanical facing stored in combination with the headlight shape information of the matching or similar reference vehicle. A headlamp center point detecting device for mechanical facing, characterized by comprising means for setting. 3. The headlamp center point detecting device for mechanical facing according to claim 1, wherein the shape information of the headlight of the vehicle is a contour shape of the headlight. A light facing screen for receiving the light of the vehicle headlight is further provided, and the vehicle headlight light on the light facing screen is detected by the camera from the shape information of the vehicle headlight. 3. A headlamp center point detecting device for mechanical facing according to claim 1 or 2, wherein the headlight image contour shape is set from a light receiving image. A light facing screen for receiving the light of the vehicle headlight is further provided, and the vehicle headlight light on the light facing screen is detected by the camera from the shape information of the vehicle headlight. 3. The headlamp center point detecting device for mechanical facing according to claim 1 or 2 , wherein the headlight center point detecting device is a illuminance pattern within a contour shape of a headlight image set from light reception. A first step of storing a pair of the headlight center point for mechanical facing corresponding to the reference point of the headlight of the reference vehicle corresponding to the reference information of the headlight of the reference vehicle corresponding to one or more reference vehicles as a reference; ,
A second step of detecting shape information of the headlight of the vehicle under test by a camera;
A third step of detecting what matches or resembles the shape information of the headlight detected in the second step from the shape information of the headlight stored in the first step;
A fourth headlamp center point stored for the coincidence or similar headlight shape information and stored as a pair is set equal to the headlamp center point for the mechanical front of the vehicle under test. A headlamp center point detecting method for mechanical facing, characterized by comprising the steps of : A combination of headlight center information corresponding to the headlight reference point of the reference vehicle corresponding to the reference information of the headlight of one or more reference vehicles serving as a reference and the vehicle type information of the reference vehicle The first step to remember,
A second step of detecting shape information of the headlight of the vehicle under test by a camera;
From the stored vehicle type information of the reference vehicle, one that matches the vehicle type information of the vehicle under test is detected, and from the shape information of the headlight of the reference vehicle stored in combination with the detected vehicle type information, the second A third step of detecting a match or similar to the headlight shape information detected in the step;
Storing said identical or similar to the headlight shape information and set a mechanical positive-to headlamp center point of the object to be trial vehicle mechanical positive pairs for the fourth to allowed to set as equal to the headlamp center point of the A headlamp center point detecting method for mechanical facing, characterized by comprising the steps of : 8. The headlamp center point detecting method for mechanical facing according to claim 6, wherein the shape information of the headlight of the vehicle is a contour shape of the headlight. The shape information of the headlight of the vehicle is an outline shape of a headlight image set from an image of the light of the headlight of the vehicle on the light facing screen detected by the camera. Item 8. The headlamp center point detection method for mechanical facing according to Item 6 or 7. The shape information of the vehicle headlight is an illuminance pattern within the contour shape of the headlight image set from the light reception image of the headlight of the vehicle on the light facing screen detected by the camera. 8. The method of detecting a headlamp center point for mechanical facing according to claim 6 or 7. Headlight shape information of one or a plurality of reference vehicles, a headlamp center point for temporary mechanical alignment calculated based on the shape information of the headlights of the reference vehicle, and a headlight reference of the reference vehicle A storage unit that stores the displacement amount of the headlamp center point for true mechanical alignment on the shape information corresponding to the point in pairs;
A camera that detects the shape information of the headlight of the vehicle under test;
Means for detecting, from the shape information of the headlight of the reference vehicle stored in the storage unit, the same or similar to the shape information of the headlight of the vehicle under test detected by the camera;
It calculates the headlamp center point for temporary mechanical positive pairs from the shape information of the headlight of the target attempts vehicle detected by the camera, the headlamp center point for mechanical positive pair of the temporary, the match or Move the headlight center point displacement for the reference vehicle stored in pairs with the shape information of the headlight of the similar reference vehicle, and move the moved point to the true headlight of the vehicle under test. A headlamp center point detecting device for mechanical facing, characterized in that the headlamp center point is set equal to the headlamp center point for mechanical facing. Headlight shape information of one or a plurality of reference vehicles, a headlamp center point for temporary mechanical alignment calculated based on the shape information of the headlights of the reference vehicle, and a headlight reference of the reference vehicle A storage unit that stores a displacement amount of a headlamp center point for true mechanical alignment on the shape information corresponding to a point and vehicle type information of the reference vehicle,
Vehicle type information detecting means for detecting the vehicle type information of the reference vehicle stored in the storage unit, which matches the vehicle type information of the vehicle under test;
A camera for detecting the shape information of the headlight of the vehicle under test;
From the vehicle type information detected by the vehicle type information detecting means and the shape information of the headlight of the reference vehicle stored in combination, the information that matches or is similar to the shape information of the headlight of the vehicle under test detected by the camera is detected. Means,
It calculates the headlamp center point for temporary mechanical positive pairs from the shape information of the headlight of the target attempts vehicle detected by the camera, the headlamp center point for mechanical positive pair of the temporary, the match or Move the displacement of the center point of the headlight for mechanical reference of the reference vehicle stored in combination with the shape information of the headlight of the similar reference vehicle, and move the moved point to the true value of the headlight of the vehicle under test. A headlamp center point detecting device for mechanical facing, characterized in that the headlamp center point is set equal to the headlamp center point for mechanical facing. Corresponds to vehicle type information of one or more reference vehicles, headlamp center point for temporary mechanical alignment calculated based on headlight shape information of the reference vehicle, and reference point of the headlight of the reference vehicle A storage unit that stores a pair of displacements with the center point of the headlamp for true mechanical alignment on the shape information;
Vehicle type information detecting means for detecting the vehicle type information of the test vehicle from the vehicle type information of the reference vehicle stored in the storage unit;
A camera that detects the shape information of the headlight of the vehicle under test;
Calculates the headlamp center point for temporary mechanical positive pairs from the shape information of the headlight of the target attempts vehicle detected by the camera, the headlamp center point for mechanical positive pair of the temporary, the vehicle type information The vehicle type information detected by the detection means is moved by the displacement amount of the center point of the headlamp for the mechanical alignment of the reference vehicle stored in a pair, and the moved point is the true mechanical alignment of the headlight of the vehicle under test. A headlamp center point detecting device for mechanical facing, characterized by comprising: means for setting the center point of the headlamp as a pair equal to the center point. 14. The headlamp center point detecting device for mechanical facing according to claim 11, wherein the shape information of the headlight of the vehicle is a contour shape of the headlight. 14. The headlamp center point detecting device for mechanical facing according to claim 11, wherein the shape information of the headlight of the vehicle is a contour shape of a headlight image detected by a camera. 14. The headlamp center inspection for mechanical alignment according to claim 11, wherein the shape information of the headlight of the vehicle is an illuminance pattern within a contour shape of a headlight image detected by a camera. Out device. 17. The headlamp center inspection for mechanical alignment according to claim 14, 15 or 16, wherein the temporary mechanical alignment headlamp center point is an area center point calculated from the contour shape. Out device. Headlamp center point for mechanical positive said pair of provisional, mechanical of claim 14, 15 or 16, wherein the a illuminance center of gravity calculated from the illuminance pattern contour in the shape of the headlight image Headlamp center point detection device for direct facing .

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