CN113639170B

CN113639170B - Calibration equipment

Info

Publication number: CN113639170B
Application number: CN202110892689.3A
Authority: CN
Inventors: 张函
Original assignee: Autel Intelligent Technology Corp Ltd
Current assignee: Autel Intelligent Technology Corp Ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2023-03-28
Anticipated expiration: 2041-08-04
Also published as: CN113639170A

Abstract

The invention relates to the technical field of automobile detection, and discloses calibration equipment which comprises a display screen, an installation support, a projector and a vertical adjusting piece. The mounting bracket supports the display screen, the projector is used for projecting images of calibration patterns to the display screen, in the vertical adjusting pieces above three groups, each group of vertical adjusting pieces is connected with the projector through a fastening piece, the upper end of each group of vertical adjusting pieces is movably connected with the mounting seat, at least three groups of vertical adjusting pieces are distributed at three corners of a triangle, the lower ends of the three groups of vertical adjusting pieces are all in contact with the mounting surface of the projector, the position of the projector can be determined, after each group of vertical adjusting pieces vertically move for a corresponding distance, the lower ends of the three groups of vertical adjusting pieces are in contact with the mounting surface of the projector, the position of the projector can be re-determined, the angles of the front and rear projectors are re-determined to be different, and the problems that the images projected to the screen by the projector are prone to inclination and distortion are solved.

Description

Calibration equipment

Technical Field

The invention relates to the technical field of automobile detection, in particular to calibration equipment.

Background

Along with the development of science and technology and the improvement of living standard, the quantity of automobile reserves of residents is rapidly increased, and the automobiles become the most favored transportation tools of the residents. After an automobile is driven for a long time and a long distance, a sensor on an Advanced Driver Assistance System (ADAS) may be subjected to position deviation or performance degradation relative to factory shipment, and currently, calibration detection is performed on the sensor in the ADAS through an automobile calibration device to reasonably calibrate the sensor in the ADAS, so that an owner can be ensured to drive safely.

Generally, a camera of a vehicle is calibrated through a pattern plate with a calibration pattern, a new technology exists, an image of the calibration pattern is projected to a screen through a projector, the camera of the vehicle is calibrated, and the phenomenon that ink at the edge of the set pattern is easy to diffuse outwards can be effectively avoided.

However, in the actual use process, due to the errors of material processing, the problems of material stress deformation and the like, the problems of inclination, distortion and the like are easy to occur when the projector projects the image on the screen.

Disclosure of Invention

The embodiment of the invention aims to provide a calibration device to solve the problem that an image projected to a screen by a projector is easy to incline and distort.

The embodiment of the invention adopts the following technical scheme for solving the technical problems: there is provided a calibration apparatus including:

a display screen;

the mounting support supports the display screen;

the projector is used for projecting an image of the calibration pattern to the display screen; and

the projector comprises more than three groups of vertical adjusting pieces, wherein at least three groups of vertical adjusting pieces are arranged at three corners of a triangle respectively, each group of vertical adjusting pieces are connected with the projector through fasteners, the upper end of each group of vertical adjusting pieces is movably connected with the mounting support, each group of vertical adjusting pieces can vertically move, and the lower end of each group of vertical adjusting pieces is used for contacting with the mounting surface of the projector.

In some embodiments, the calibration apparatus comprises four sets of the vertical adjustment;

the positions of two groups of vertical adjusting pieces are symmetrical to the positions of the other two groups of vertical adjusting pieces in the transverse direction, and/or the positions of two groups of vertical adjusting pieces are symmetrical to the positions of the other two groups of vertical adjusting pieces in the longitudinal direction.

In some embodiments, each set of vertical adjusters includes an adjustment screw having an upper end threadedly coupled to the mounting block, the adjustment screw being helically movable about a vertical axis to cause vertical movement of the vertical adjusters.

In some embodiments, a locking nut is threaded onto the adjustment screw and is disposed between the mounting block and the projector to lock the adjustment screw to the mounting block when tightened against a lower surface of the mounting block.

In some embodiments, the fastener comprises a fixing bolt, and each set of the vertical adjustment members is connected to the projector through the fixing bolt.

In some embodiments, each set of the vertical adjusting pieces is provided with a vertically arranged fixing hole, the lower end of the fixing hole penetrates through the lower end of the vertical adjusting piece, the fixing bolt penetrates through the fixing hole and the mounting surface of the projector, the projector is locked on the vertical adjusting piece when being screwed down, and the lower end of the vertical adjusting piece is kept in contact with the mounting surface of the projector.

In some embodiments, the fixing hole and the fixing bolt are clearance-fitted.

In some embodiments, the mounting support comprises a vertical moving seat, a longitudinal moving seat and a transverse moving seat;

the vertical moving seat can vertically move so as to drive the projector to vertically move;

the longitudinal moving seat can move longitudinally to drive the projector to move longitudinally;

the transverse moving seat can move transversely to drive the projector to move transversely.

In some embodiments, the mounting support further comprises a base, a vertical locking mechanism, a longitudinal locking mechanism, and a transverse locking mechanism;

the upper end of each group of vertical adjusting pieces is movably connected to the transverse moving seat;

the transverse locking mechanism locks the transverse moving seat on the longitudinal moving seat, and allows the transverse moving seat to transversely move when unlocked;

the longitudinal locking mechanism locks the longitudinal moving seat on the vertical moving seat, and allows the longitudinal moving seat to move longitudinally when the longitudinal moving seat is unlocked;

the vertical moving seat is locked on the base by the vertical locking mechanism, and is allowed to vertically move when unlocked.

In some embodiments, the vertical locking mechanism comprises a first bolt penetrating through the base and the vertical moving seat, and when the first bolt is screwed down, the vertical moving seat is pressed on the base, and when the first bolt is unscrewed, the vertical moving seat is loosened; and/or the presence of a gas in the atmosphere,

the longitudinal locking mechanism comprises a second bolt, the second bolt penetrates through the longitudinal moving seat and the vertical moving seat, the longitudinal moving seat is tightly pressed on the vertical moving seat when the second bolt is screwed down, and the longitudinal moving seat is loosened when the second bolt is unscrewed; and/or the presence of a gas in the gas,

the transverse locking mechanism comprises a third bolt, the third bolt penetrates through the transverse moving seat and the longitudinal moving seat, the transverse moving seat is pressed on the longitudinal moving seat when the third bolt is screwed down, and the transverse moving seat is loosened when the third bolt is unscrewed.

In some embodiments, a vertical waist hole is formed in the base, the first bolt penetrates through the vertical waist hole to penetrate through the base, and the vertical moving seat drives the first bolt to move between two ends of the vertical waist hole when moving vertically; and/or the presence of a gas in the gas,

a longitudinal waist hole is formed in the vertical moving seat, the second bolt penetrates through the longitudinal waist hole to penetrate through the vertical moving seat, and the second bolt is driven to move between two ends of the longitudinal waist hole when the vertical moving seat moves longitudinally; and/or the presence of a gas in the gas,

the longitudinal moving seat is provided with a transverse waist hole, the third bolt penetrates through the transverse waist hole to penetrate through the longitudinal moving seat, and the transverse moving seat drives the third bolt to move between two ends of the transverse waist hole when moving transversely.

In some embodiments, the base comprises a first vertical sleeving part, the vertical moving seat comprises a second vertical sleeving part, and the first and second vertical sleeving parts are sleeved to guide the vertical moving seat to move vertically; and/or the presence of a gas in the gas,

the vertical moving seat comprises a first longitudinal sleeving part, the vertical moving seat comprises a second longitudinal sleeving part, and the first and second longitudinal sleeving parts are sleeved with each other to guide the vertical moving seat to move longitudinally.

In some embodiments, further comprising a stand assembly comprising a lift assembly;

the mounting support is connected with the vertical frame assembly, and the lifting assembly is used for driving the display screen and the projector to move vertically.

In some embodiments, the calibration apparatus further comprises a cross beam;

the crossbeam is fixedly connected with the mounting support, and vertically moves together when the display screen and the projector vertically move, and rotates around a vertical axis when the display screen and the projector rotate around the vertical axis;

the crossbeam is used for mounting calibration elements, or can be transversely moved to mount calibration elements through hanging plates.

In some embodiments, the stand assembly further comprises an upright and the support rod assembly;

the lower end of the supporting rod assembly is connected with the upright post through the lifting assembly, the cross beam is fixed to the lower end of the supporting rod assembly, one part of the mounting support is fixed to the cross beam, and the other part of the mounting support is fixed to the upper end of the supporting rod assembly.

In some embodiments, the mounting bracket comprises two vertical rods and a transverse rod;

the two vertical rods are spaced in the transverse direction, two ends of each transverse rod are connected to the upper ends of the two vertical rods respectively, the part between the two ends of each transverse beam rod is fixed to the upper end of the corresponding supporting rod component, and the lower ends of the two vertical rods are fixed to the transverse beam.

In some embodiments, four supporting portions are disposed on the two vertical rods, two of the supporting portions are disposed on the lower ends of the two vertical rods respectively and are used for supporting the lower portion of the display screen together, and the other two supporting portions are disposed on the upper ends of the two vertical rods respectively and are used for supporting the upper portion of the display screen together.

Compared with the prior art, the embodiment of the invention provides calibration equipment which comprises more than three groups of vertical adjusting pieces, wherein at least three groups of vertical adjusting pieces are distributed at three corners of a triangle respectively, the lower ends of the three groups of vertical adjusting pieces are all in contact with the mounting surface of a projector, the position of the projector can be determined, after each group of vertical adjusting pieces vertically move for a corresponding distance, the lower ends of the three groups of vertical adjusting pieces are in contact with the mounting surface of the projector, the position of the projector can be re-determined, the angles of the front projector and the rear projector are re-determined to be different, and therefore the position of the projector relative to a display screen is adjusted, images projected on the screen by the projector are adjusted, and the problem that the images projected on the screen by the projector are prone to inclination and distortion is solved.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings which correspond to and are not to be construed as limiting the embodiments, in which elements having the same reference numeral designations represent like elements throughout, and in which the drawings are not to be construed as limiting in scale unless otherwise specified.

Fig. 1 is a schematic structural diagram of a calibration apparatus according to an embodiment of the present invention;

FIG. 2 is a disassembled schematic view of the calibration apparatus shown in FIG. 1;

FIG. 3 is a disassembled schematic view of the support of the calibration apparatus shown in FIG. 2;

FIG. 4 is a disassembled schematic view of the stand assembly of the stand shown in FIG. 3;

FIG. 5 is a disassembled schematic view of the bracket assembly of the bracket shown in FIG. 3, wherein the beam mounting base and part of the column structure of the bracket assembly are transparentized;

FIG. 6 is a schematic structural view of a beam assembly of the bracket shown in FIG. 4;

FIG. 7 is a schematic view of the cross-beam assembly shown in FIG. 6 at another angle;

FIG. 8 is a partial schematic view of the support shown in FIG. 3, illustrating primarily the connection between the base, riser assembly, and cross members of the support;

FIG. 9 is a disassembled schematic view of a projector assembly of the calibration apparatus shown in FIG. 2;

fig. 10 is a disassembled schematic view of a partial structure of the projector assembly shown in fig. 9;

FIG. 11 is a schematic view of the projector assembly of FIG. 9 rotated about a longitudinal axis, with the state prior to rotation of the projector shown in phantom;

FIG. 12 is a schematic view of the projector assembly shown in FIG. 9 rotated about a transverse axis, wherein the state of the projector prior to rotation is shown in phantom;

FIG. 13 is an enlarged view of a cross-section of the projector assembly shown in FIG. 9;

FIG. 14 is a schematic diagram of the structure of the bracket and projector assembly of the calibration apparatus shown in FIG. 2;

fig. 15 is a schematic structural diagram of the calibration device shown in fig. 1 at another angle, wherein a display screen of the calibration device is transparent.

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "connected" to another element, it can be directly on the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "upper", "lower", "top" and "bottom" used in the present specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, an embodiment of the invention provides a calibration bracket 100, which includes a bracket 10, a display screen 20, and a projector assembly 30. The stand 10 is used to support the display screen 20 and the projector assembly 30.

Referring to fig. 3, the support frame 10 includes a base 12, a stand assembly 14, and a beam assembly 16. The beam assembly 16 is mounted to the base 12 by the riser assembly 14.

The base 12 includes a base body 120, a traveling wheel 122, and a support 124. The traveling wheels 122 and the support 124 may alternately support the base body 120. When the travelling wheels 122 support the base main body 120, the base 12 can move on the ground, which is beneficial to carrying; when the support 124 supports the base body 120, the base 12 is fixed on the ground.

The supporting member 124 can be raised or lowered relative to the base body 120, wherein the traveling wheel 122 bears weight when raised to bear weight, and the traveling wheel 122 bears weight when lowered to bear weight, so that the traveling wheel 122 and the supporting member 124 alternately support the base body 120.

The support 124 is screw-coupled with the base body 120, and the support 124 is spirally movable with respect to the base body 120 to be raised or lowered with respect to the base body 120.

The base 12 includes three supports 124. The three supporting members 124 are respectively disposed at three corners of a triangular region to form a three-point supporting structure, and each supporting member 124 can be raised or lowered with respect to the base body 120 to adjust the tilt angle of the base body 120, thereby facilitating use on uneven ground. For example, when used on a horizontal ground, the lengths of the parts of the three supporting members for supporting are adjusted to be uniform, so as to ensure that the base main body 120 is horizontal; for example, when the base is used on uneven ground, the length of the supporting part for supporting the supporting part on the concave surface is longer, and the length of the supporting part for supporting the supporting part on the convex surface is shorter, so that the base body is ensured to be horizontal.

The base body 120 is used to support the stand assembly 14.

Referring to fig. 4 and 5, the stand assembly 14 includes a column 140, a lifting assembly 142, and a support rod assembly 144. A lift assembly 142 is mounted on the column 140 and is connected to the support rod assembly 144, the lift assembly 142 for driving the support rod assembly 144 to move vertically relative to the column 140.

The column 140 is hollow and internally receives a lifting assembly 142. The two opposite side walls of the upright column 140 are respectively provided with an avoiding groove 1400 for allowing a part of the lifting assembly 142 to extend from the inside of the upright column 140 for installing the supporting rod assembly 144. A vertical bushing 1402 is installed at the top end of the upright column 140 for sleeving the support rod assembly 144 and guiding the support rod assembly 144 to move vertically.

The lifting assembly 142 includes a motor 1420, a vertical lead screw 1422, a lead screw support 1424, a vertical guide 1426, and a lifting bracket 1428. The motor 1420 is installed on the bottom wall of the upright column 140, the lower end of the vertical screw 1422 is fixed on the rotating shaft of the motor 1420, the upper end of the vertical screw 1422 is installed on the sidewall of the upright column 140 through the screw support 1424, the vertical guide 1426 is fixed on the sidewall of the upright column 140, a nut for matching with the vertical screw 1422 and a slider for matching with the vertical guide 1426 are installed on one part of the lifting support 1428, and the other part of the lifting support 1428 extends out of the upright column 140 through the avoiding groove 1400 for fixing the support rod assembly 144. When the motor 1420 works, the vertical screw 1422 is driven to rotate around its own axis, and the vertical screw 1422 drives the lifting support 1428 to vertically move along the vertical guide rail 1426, so as to drive the support rod assembly 144 to vertically move together.

The lower end of the support rod assembly 144 is connected to the upright column 140 through the lifting assembly 142, and the portion of the support rod assembly 144 between the upper end and the lower end thereof is sleeved in the vertical shaft sleeve 1402.

Support rod assembly 144 includes a support rod 1440, a pivot mount 1442, and a cross-beam mount 1444. The lower end of the supporting rod 1440 is rotatably connected with a rotating shaft mounting seat 1442, and a beam mounting seat 1444 is fixed at the lower end of the supporting rod 1440. The supporting rod 1440 can rotate around its own axis, so as to drive the beam mounting seat 1444 to rotate around the axis of the supporting rod 1440.

The rotating shaft mounting seat 142 is fixed on the lifting support 1428, the lifting support 1428 drives the whole supporting rod assembly 144 to vertically move together when vertically moving, the supporting rod 1440 is sleeved in the vertical shaft sleeve 1402, and the vertical shaft sleeve 1402 is further used for guiding the supporting rod 1440 to rotate around the axis of the vertical shaft sleeve 1402.

The support bar 1440 may also be fixed to the pivot mount 1442, i.e., it does not have a pivoting function.

Referring to fig. 6 and 7, the beam assembly 16 includes a beam 160, a hanging plate 161, two sets of calibration cameras 162, a range camera 163 and a range target 164.

The beam 160 is used to support the hanging plate 161, the two sets of calibration cameras 162, the range finding camera 163 and the range finding target 164. A cross rail 1600 is provided on one face of the cross beam 160.

The hanging plate 161 is installed at a position between both ends of the cross member 160, and is used to mount a calibration element, such as a radar reflector for calibrating a Lane Departure Warning System (LDWS), a Night Vision device for calibrating a Night Vision system (Night Vision system), and the like. The hanging plate 161 can move along the transverse guide 1600 to adjust the transverse position of the indexing element. It will be appreciated that depending on the actual requirements, peg board 161 may be omitted, for example, with the indexing elements mounted directly on cross-beam 160.

Two sets of calibration cameras 162 are respectively installed at two ends of the beam 160 and are respectively used for calibrating targets on the left and right wheels of the vehicle to be measured so as to perform four-wheel positioning. The two sets of calibration cameras 162 can move along the transverse guide rail 1600 respectively to adapt to vehicles to be tested with different left and right wheel tracks.

The distance measuring camera 163 and the distance measuring target 164 are respectively fixed on the two sets of calibration cameras 162, and the distance measuring camera 163 is used for measuring the distance between the distance measuring camera 163 and the distance measuring target 164 to obtain the distance between the two sets of calibration cameras 162 for four-wheel positioning.

It will be appreciated that the calibration elements may also be mounted directly on the cross beam 160, depending on the actual requirements.

Referring to fig. 8, the lower end of the upright 140 is fixed to the base body 120 to mount the stand assembly 14 on the base 12. The cross member 160 is secured at a location between its ends to the cross member mount 1444 to enable the cross member assembly 16 to be mounted to the riser assembly 14. When the cross beam mounting seat 1444 vertically moves, the cross beam assembly 16 is driven to vertically move together, so that the calibration element mounted on the cross beam assembly 16 vertically moves, and the calibration of the sensors with different heights is facilitated. When the cross beam mounting seat 1444 rotates around the vertical axis, the cross beam assembly 16 is driven to rotate around the vertical axis, so that the orientation of the calibration element mounted on the cross beam assembly 16 is adjusted, the angle of the base 12 does not need to be adjusted, the adjustment time is shortened, and the adjustment difficulty is reduced.

Referring to fig. 9 and 10, the projector assembly 20 includes a mounting bracket, a projector 28, and an angle adjustment mechanism 29. The mounting support comprises a base 21, a vertical moving seat 22, a vertical locking mechanism 23, a longitudinal moving seat 24, a longitudinal locking mechanism 25, a transverse moving seat 26, a transverse locking mechanism 27, a projector 28 and an angle adjusting mechanism 29. The projector 28 is mounted on the transverse moving seat 26 through an angle adjusting mechanism 29, and the angle adjusting mechanism 29 is used for adjusting the angle of the projector 28; the transverse locking mechanism 27 locks the transverse moving seat 26 on the longitudinal moving seat 24, and when the transverse moving seat 26 is unlocked, the transverse moving seat 26 can transversely move to drive the projector 28 to transversely move; the longitudinal locking mechanism 25 locks the longitudinal moving seat 24 on the vertical moving seat 22, and when the longitudinal moving seat 24 is unlocked, the longitudinal moving seat 24 can move longitudinally to drive the projector 28 to move longitudinally; the vertically movable base 22 is locked to the base 21 by a vertical locking mechanism 23, and when unlocked, the vertically movable base 22 can move vertically to drive the projector 28 to move vertically together.

The base 21 includes two vertical rods 210, a transverse rod 212, and a first vertical socket 214. The two vertical rods 210 are spaced apart in the transverse direction, both ends of the transverse rod 212 are fixed to the upper ends of the two vertical rods 210, respectively, and the first vertical sheathing part 214 is fixed above the transverse rod 212. The first vertical engaging portion 214 is used for engaging the vertical movable base 22. A vertical waist hole 216 is formed in the first vertical sleeving part 214 for installing the vertical locking mechanism 23.

The vertical movable mount 22 includes a second vertical socket 220 and a first longitudinal socket 222. The upper end of the second vertical sleeving part 220 is fixedly connected with one end of the first longitudinal sleeving part 222. The second vertical socket 220 is sleeved on the first vertical socket 214. The first longitudinal engaging portion 222 is adapted to engage the longitudinal movable base 24. The first longitudinal engaging portion 222 is provided with a longitudinal waist hole 224 for installing the longitudinal locking mechanism 25.

The vertical locking mechanism 23 comprises a first bolt. First vertical portion 214 and the vertical portion 222 of cup jointing of second are worn to establish by first bolt, when screwing up, compress tightly the vertical portion 222 of cup jointing of second on first vertical portion 214 of cup jointing to realize vertical locking mechanism 23's locking function, when unscrewing, loosen the vertical portion 222 of cup jointing of second, in order to realize vertical locking mechanism 23's unblock function.

Vertical waist hole 216 is worn to establish by first bolt, in order to wear to establish first vertical portion of cup jointing portion 214, when vertical removal seat 22 vertical migration, drive first bolt and remove between the both ends of vertical waist hole 216, through setting up vertical waist hole 216, when vertical locking mechanism 23 unblock, need not pull down first bolt, only need with first bolt unscrew can, in addition, vertical removal seat 22 is when vertical removal is located the one end department of vertical waist hole 216 to first bolt, can prevent vertical removal seat 22 to continue vertical migration, has spacing function.

The longitudinal shift block 24 includes a second longitudinal socket portion 240 and a mounting portion 242. The mount part 242 is disposed at one side of the second longitudinal socket part 240 in the longitudinal direction. The second longitudinal socket 240 is fitted over the first longitudinal socket 222. The mounting portion 242 is used to mount the angle adjusting mechanism 29. A transverse waist hole 244 is formed in the mounting portion 242 for mounting the transverse locking mechanism 27.

The longitudinal locking mechanism 25 comprises a second bolt. The second bolt penetrates through the first longitudinal sleeving part 222 and the second longitudinal sleeving part 240, when the second bolt is screwed down, the second longitudinal sleeving part 240 is pressed on the first longitudinal sleeving part 222 to achieve the locking function of the longitudinal locking mechanism 25, and when the second bolt is unscrewed, the second longitudinal sleeving part 240 is loosened to achieve the unlocking function of the longitudinal locking mechanism 25.

The second bolt wears to establish vertical waist hole 224 to wear to establish first vertical portion 222 of cup jointing, when longitudinal movement seat 24 longitudinal movement, drive the second bolt and remove between the both ends of vertical waist hole 224, through setting up vertical waist hole 224, when vertical locking mechanism 25 unblock, need not pull down the second bolt, only need unscrew the second bolt can, in addition, longitudinal movement seat 24 is when longitudinal movement reaches the second bolt and is located the one end department of vertical waist hole 224, can prevent longitudinal movement seat 24 to continue longitudinal movement, has spacing function.

The lateral transfer housing 26 includes two lateral links 260. The two transverse links 260 are longitudinally spaced apart, and the two transverse links 260 are coupled together with the projector 28 via the angle adjustment mechanism 29 to secure the two transverse links 260 together.

Four adjusting screw holes 262 are opened on the lateral moving base 26 for mounting the angle adjusting mechanism 29. Two of the adjusting screw holes 262 are respectively provided at both ends of one of the lateral connecting members 260, and the other two adjusting screw holes 262 are respectively provided at both ends of the other lateral connecting member 260.

The lateral locking mechanism 27 comprises a third bolt. The third bolt penetrates through the mounting portion 242 and the transverse moving seat 26, when the third bolt is screwed down, the transverse moving seat 26 is pressed on the mounting portion 242 to achieve the locking function of the transverse locking mechanism 27, and when the third bolt is unscrewed, the transverse moving seat 26 is loosened to achieve the unlocking function of the transverse locking mechanism 27.

The third bolt wears to establish horizontal waist hole 244 to wear to establish installation department 242, when lateral shifting seat 26 lateral shifting, drive the third bolt and remove between the both ends of horizontal waist hole 244, through setting up horizontal waist hole 244, can cooperate with the third bolt, with guide lateral shifting seat 26 lateral shifting, in addition, lateral shifting seat 26 can prevent lateral shifting seat 26 to continue lateral shifting when lateral shifting is located the one end department of horizontal waist hole 244 to the third bolt, has spacing function.

Projector 28 is generally rectangular in shape and includes opposing upper surface 280 and lower surface 282. The upper surface 280 of the projector 28 includes a mounting surface for contacting the angle adjustment mechanism 29. The upper surface 280 of the projector 28 is an uneven surface, and includes a planar portion 2800 and four raised portions 2802, each raised portion protruding out of the planar portion 2800, and mounting surfaces are provided on the four raised portions 2802.

Four fixing screw holes 284 are formed in the upper surface 280 of the projector 28 for mounting the angle adjusting mechanism 29. Four fixing screw holes 284 are provided on the four raised portions 2802, respectively.

The lens of the projector 28 is provided on the lower surface 282 of the projector 28, and the projector 28 projects an image through the lens.

The angle adjustment mechanism 29 includes a vertical adjustment member 290, a fastening member 292, and a locking member 294. The four groups of vertical adjusting pieces 290 are respectively arranged at four top corners of a rectangular area, wherein the positions of the two groups of vertical adjusting pieces 290 are symmetrical to the positions of the other two groups of vertical adjusting pieces 290 in the transverse direction, and the positions of the two groups of vertical adjusting pieces 290 are symmetrical to the positions of the other two groups of vertical adjusting pieces 290 in the longitudinal direction.

The upper end of each set of vertical adjustment members 290 is movably connected to the lateral movable base 26, and the lower end of each set of vertical adjustment members 290 is used for contacting the mounting surface of the projector 28. A plane can be determined based on at least three points that are not collinear, and when the lower ends of the four sets of vertical adjustment members 290 collectively contact the mounting surface of projector 28, and thus the position of projector 28, can be determined.

Each set of vertical adjustment members 290 is vertically movable, the position of the projector 28 can be re-determined after each set of vertical adjustment members 290 is vertically moved by a corresponding distance, and the angle of the re-determined position is different from the angle of the position before re-determination. For example, when the two vertical adjustment members 290 located at one lateral side are vertically moved by the same distance, the projector is rotated about the longitudinal axis, as shown in fig. 11. For example, two vertical adjustment members 290 on one longitudinal side are moved vertically, and the projector 28 is rotated about the lateral axis, as shown in fig. 12.

It is understood that the number of the vertical adjusting members 290 is not limited to four, and the number of the vertical adjusting members 290 may be three, four, five, six or more, according to actual requirements, as long as the number of the vertical adjusting members 290 is at least three, and there are at least three sets of the vertical adjusting members 290 respectively disposed at three corners of one triangular region.

Referring to fig. 13, each set of vertical adjustment members 290 is an adjustment bolt, which includes an adjustment screw head and an adjustment screw rod. The adjusting screw rod is vertically arranged, and the upper end of the adjusting screw rod is connected with an adjusting screw head. The adjusting screw heads of each group of vertical adjusting pieces 290 are arranged on the upper side of the transverse moving seat 26, the upper end of the adjusting screw rod of each group of vertical adjusting pieces 290 is in threaded connection with the adjusting screw hole 262 of the transverse moving seat 26, and the lower end of the adjusting screw rod of each group of vertical adjusting pieces 290 is used for contacting the mounting surface of the projector 28. Each set of vertical adjustment members 290 is helically movable about the axis of its adjustment screw to move vertically, wherein upon helical movement in the screwing-in direction, it moves vertically downwards, and upon helical movement in the screwing-out direction, it moves vertically upwards.

Each set of vertical adjustment members 290 is provided with a fastening hole 2900 for mounting a fastener 292. The fixing hole 2900 is vertically arranged, the upper end of the fixing hole 2900 penetrates through the adjusting screw head, and the lower end of the fixing hole 2900 penetrates through the lower end of the adjusting screw rod.

The fastener 292 is a fixing bolt. A fastener 292 is inserted through the fixing hole 2900 and the mounting surface of the projector 28, and when tightened, locks the projector 28 to the vertical adjustment member 290, and keeps the lower end of the vertical screw of the vertical adjustment member 290 in contact with the mounting surface of the projector 28.

The fixing holes 2900 are light holes, the fastening member 292 is inserted through the fixing screw hole 284 to be inserted through the mounting surface of the projector 28, and the fastening member 292 is screwed with the fixing screw hole 284.

When the angle of the position of projector 28 after the redetermination is different from the angle of the position before the redetermination, fastener 292 rotates in the vertical plane as projector 28 rotates, and fixing hole 2900 is in clearance fit with fastener 292 to allow fastener 292 to rotate in the vertical plane.

The locking member 294 is a fastening nut. A locking member 294 is threaded on the adjustment screw of the vertical adjustment member 290 and is disposed between the laterally movable seat 26 and the projector 28, and locks the vertical adjustment member 290 to the laterally movable seat 26 when screwed down against the lower surface of the laterally movable seat 26, the vertical adjustment member 290 being incapable of screwing around the axis of its adjustment screw, and the vertical adjustment member 290 being capable of screwing around the axis of its adjustment screw when unscrewed off the lower surface of the laterally movable seat 26.

It is understood that fastener 294 may be omitted, as desired.

Referring to fig. 14, a cross member 160 is fixed to the lower end of the support rod assembly 144, and a portion of the mounting bracket is fixed to the cross member 160 and another portion is fixed to the upper end of the support rod assembly 144 to mount the projector assembly 20 to the stand 10.

Specifically, the lower ends of the two vertical bars 210 are fixed to the cross beam 160, and the horizontal bar 212 is fixed to the upper end of the supporting bar 1440 to mount the projector assembly 20 on the stand 10. When the supporting rod 1440 rotates around its own axis, the projector assembly 20 is driven to rotate around the axis of the supporting rod 1440.

Referring to fig. 15, four supporting portions 218 are disposed on the two vertical rods 210, two of the supporting portions are disposed on the lower ends of the two vertical rods 210 respectively and are used for supporting the lower portion of the display screen 30, and the other two supporting portions are disposed on the upper ends of the two vertical rods 210 respectively and are used for supporting the upper portion of the display screen 30, so that the mounting support supports the display screen 30, and the support 10 supports the display screen 30 through the projector assembly 20.

The projector 28 is configured to project an image of a target pattern onto the display screen 30 to calibrate a camera of an Adaptive Cruise Control (ACC) of the vehicle to be measured. By enabling the projector 28 to move transversely, move longitudinally, move vertically, rotate around a transverse axis and rotate around a longitudinal axis, images projected on the display screen 30 by the projector 28 can be adjusted to improve the imaging precision of the target patterns and further improve the calibration accuracy.

The display screen 30 can move vertically along with the projector assembly 20 to adapt to vehicles to be measured with cameras at different heights. Display screen 30 can rotate around vertical axis along with projecting apparatus subassembly 20 together to change display screen 30's orientation, need not carry the angle of base 12, do benefit to and reduce adjustment time, reduce the adjustment degree of difficulty.

Compared with the prior art, the embodiment of the invention provides calibration equipment, which comprises more than three groups of vertical adjusting pieces, wherein at least three groups of vertical adjusting pieces are distributed at three corners of a triangle respectively, the lower ends of the three groups of vertical adjusting pieces are all in contact with the mounting surface of a projector, the position of the projector can be determined, after each group of vertical adjusting pieces vertically move for a corresponding distance, the lower ends of the three groups of vertical adjusting pieces are in contact with the mounting surface of the projector, the position of the projector can be re-determined, the angles of the front projector and the rear projector are re-determined to be different, and therefore the position of the projector relative to a display screen is adjusted, an image projected on the screen by the projector is adjusted, and the problem that the image projected on the screen by the projector is prone to inclination and distortion is solved.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; while the invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A calibration apparatus, comprising:

a display screen;

the mounting support supports the display screen;

more than three groups of vertical adjusting pieces, wherein at least three groups of vertical adjusting pieces are respectively distributed at three corners of a triangle, each group of vertical adjusting pieces are connected with the projector through fasteners, the upper end of each group of vertical adjusting pieces is movably connected with the mounting support, each group of vertical adjusting pieces can vertically move, and the lower end of each group of vertical adjusting pieces is used for contacting with the mounting surface of the projector;

each group of vertical adjusting pieces comprises an adjusting screw rod, the upper end of the adjusting screw rod is in threaded connection with the mounting support, and the adjusting screw rod can perform spiral motion around a vertical axis so as to enable the vertical adjusting pieces to vertically move.

2. The calibration device according to claim 1, characterized by comprising four sets of the vertical adjustment members;

wherein the positions of two groups of the vertical adjusting pieces are symmetrical with the positions of the other two groups of the vertical adjusting pieces in the transverse direction, and/or the positions of two groups of the vertical adjusting pieces are symmetrical with the positions of the other two groups of the vertical adjusting pieces in the longitudinal direction.

3. The calibration apparatus according to claim 1, wherein a lock nut is screwed on the adjusting screw, and is disposed between the mounting support and the projector, and when screwed against a lower surface of the mounting support, the adjusting screw is locked on the mounting support.

4. The calibration device according to any one of claims 1 to 3, wherein the fastener comprises a fixing bolt, and each set of the vertical adjustment pieces is connected with the projector through the fixing bolt.

5. The calibration device according to claim 4, wherein each set of the vertical adjustment members is provided with a vertically arranged fixing hole, the lower end of the fixing hole penetrates through the lower end of the vertical adjustment member, the fixing bolt penetrates through the fixing hole and the mounting surface of the projector, and when the fixing bolt is tightened, the projector is locked on the vertical adjustment member, and the lower end of the vertical adjustment member is kept in contact with the mounting surface of the projector.

6. The calibration device according to claim 5, wherein the fixing hole and the fixing bolt are in clearance fit.

7. The calibration device according to any one of claims 1 to 3, wherein the mounting support comprises a vertical moving seat, a longitudinal moving seat and a transverse moving seat;

the transverse moving seat can transversely move to drive the projector to transversely move.

8. The calibration equipment as recited in claim 7, wherein the mounting support further comprises a base, a vertical locking mechanism, a longitudinal locking mechanism, and a transverse locking mechanism;

9. Calibration arrangement according to claim 8,

the vertical locking mechanism comprises a first bolt, the first bolt penetrates through the base and the vertical moving seat, the vertical moving seat is tightly pressed on the base when the first bolt is screwed down, and the vertical moving seat is loosened when the first bolt is unscrewed; and/or the presence of a gas in the gas,

10. Calibration arrangement according to claim 9,

the base is provided with a vertical waist hole, the first bolt penetrates through the vertical waist hole to penetrate through the base, and the vertical moving seat drives the first bolt to move between two ends of the vertical waist hole when moving vertically; and/or the presence of a gas in the gas,

11. Calibration arrangement according to claim 8,

the base comprises a first vertical sleeving part, the vertical moving seat comprises a second vertical sleeving part, and the first vertical sleeving part and the second vertical sleeving part are sleeved to guide the vertical moving seat to move vertically; and/or the presence of a gas in the gas,

12. The calibration device according to any one of claims 1 to 3, further comprising a stand assembly, wherein the stand assembly comprises a lifting assembly;

13. The calibration device according to claim 12, further comprising a cross beam;

the crossbeam is used for mounting the calibration element or the calibration element is mounted through a hanging plate capable of moving transversely.

14. The calibration apparatus as set forth in claim 13, wherein the stand assembly further comprises a stand column and a support rod assembly;

the lower end of the support rod assembly is connected with the upright post through the lifting assembly, the cross beam is fixed on the lower end of the support rod assembly, one part of the mounting support is fixed on the cross beam, and the other part of the mounting support is fixed on the upper end of the support rod assembly.

15. The calibration device according to claim 14, wherein the mounting support comprises two vertical rods and a transverse rod;

16. The calibration apparatus according to claim 15, wherein four supporting portions are provided on the two vertical rods, two of the supporting portions are provided on the lower ends of the two vertical rods, respectively, and are used for supporting the lower portion of the display screen, and the other two supporting portions are provided on the upper ends of the two vertical rods, respectively, and are used for supporting the upper portion of the display screen.