CN221121495U - Multi-camera and multi-camera adjusting device - Google Patents

Abstract

The utility model provides a multi-camera and a multi-camera adjusting device, wherein the multi-camera comprises a plurality of cameras; the bracket is provided with a plurality of mounting holes, and a plurality of cameras are respectively inserted into the mounting holes; and the elastic structural members are respectively arranged between the camera and the bracket. Above-mentioned multi-view camera when the equipment, this elastic structure spare can take place to warp, and this camera can be rotated or remove to this camera marks, and after the mark is accomplished, this camera and the structure of this support are fixed, can not produce subsequent creep and lead to the mark inefficacy.

Description

Multi-camera and multi-camera adjusting device

Technical Field

The utility model relates to the technical field of camera modules, in particular to a multi-camera and a multi-camera adjusting device.

Background

Along with the development of vision technology, an intelligent auxiliary driving scheme (ADAS) based on the vision technology is designed and developed, and the intelligent auxiliary driving scheme has the capabilities of ranging, identifying and the like, and can realize functions such as blind area detection, collision early warning, automatic driving and the like by being matched with a camera mounted on an automobile. The vehicle-mounted front-view camera is the camera with the highest use frequency at present, the main stream of the vehicle-mounted front-view camera is provided with a monocular camera and a multi-eye camera, the field of view range of the monocular camera is smaller, the ranging precision is lower, the field of view range of the multi-eye camera is larger, the ranging precision is higher, but the calibration of the multi-eye camera is complex, the requirements on equipment and personnel are higher, and the cost is higher.

When the traditional multi-view camera is calibrated, as each camera is limited and fixed by adopting a screw or other structures in advance, the front-back displacement, the deflection angle and the inclination angle of one camera cannot be independently adjusted. When the algorithm is fixed for complex calibration, the difference of the relative position relation between cameras is easy to exist, so that the calibration of the external parameters of the module at the client is difficult, even failed, and the automatic driving algorithm of the subsequent whole vehicle is influenced.

Disclosure of utility model

Based on this, it is necessary to provide a multi-camera for solving the problem that the calibration is difficult due to the difficulty in adjusting the existing multi-camera after the structure is fixed.

A multi-view camera, comprising:

a plurality of cameras;

The bracket is provided with a plurality of mounting holes, and a plurality of cameras are respectively inserted into the mounting holes; and

The elastic structural members are respectively arranged between the camera and the bracket.

Above-mentioned multi-view camera when the equipment, this elastic structure spare can take place to warp, and this camera can be rotated or remove to this camera marks, and after the mark is accomplished, this camera and the structure of this support are fixed, can not produce subsequent creep and lead to the mark inefficacy.

In one embodiment, the support comprises a support body, a plurality of fixing blocks protruding from the support body, the fixing blocks are respectively and correspondingly arranged on two sides of the mounting hole, the camera comprises a camera body inserted into the mounting hole and a camera support lug protruding from two sides of the camera, and the camera support lug is fixedly arranged on the fixing blocks so as to fixedly arrange the camera body on the support body.

In one embodiment, the fixing block is provided with a limiting groove, and the camera support lug is fixedly arranged in the limiting groove.

In one embodiment, the width of the camera lug is smaller than the width of the limit groove.

In one embodiment, the elastic structural member is a square elastic block, and the elastic block is disposed in the limiting groove to support the camera support lug.

In one embodiment, the camera lugs have positioning holes.

Further, the present utility model provides a multi-camera adjusting device for adjusting any one of the above multi-camera, including:

The target plate is provided with a calibration mark corresponding to the mounting hole of the bracket of the multi-purpose camera;

the bearing assembly is used for bearing the bracket so that the bracket is positioned above the target; and

The adjusting jig is arranged above the bearing assembly and used for grabbing and driving the camera of the multi-camera to rotate or move so that a calibration cursor imaged after the camera is electrified is aligned with the calibration mark.

The multi-camera adjusting device can calibrate the multi-camera when the multi-camera is assembled, so that the calibration steps of the multi-camera are simplified, and the calibration difficulty of the multi-camera is reduced.

In one embodiment, the adjusting jig comprises a handle and a limiting claw, wherein the limiting claw comprises a connecting arm fixedly arranged on the handle and a pair of positioning columns fixedly arranged at two ends of the connecting arm, and the positioning columns are used for being inserted into positioning holes of camera lugs of the camera.

In one embodiment, the limiting jaw further comprises a positioning block protruding from the outer surface of the positioning column, and the positioning block is used for abutting against the camera lug.

In one embodiment, the bearing assembly comprises a pair of bearing arms, a bearing platform fixedly arranged on the bearing arms and a target platform slidably connected to the bearing arms, the bearing platform is used for bearing the support, and the target is mounted on the target platform.

Drawings

Fig. 1 is a schematic perspective view of a multi-camera according to an embodiment of the present application;

fig. 2 is a schematic perspective view of a multi-camera adjustment device according to an embodiment of the present application;

FIG. 3 is an exploded view of a multi-camera according to one embodiment of the present application;

Fig. 4 is a schematic perspective view of an adjusting jig of a multi-camera adjusting device according to an embodiment of the present application when grabbing a multi-camera;

Fig. 5 is a schematic side view of an adjusting jig of a multi-camera adjusting device according to an embodiment of the present application when grabbing a multi-camera;

Fig. 6 is a schematic cross-sectional view of an adjusting jig of a multi-camera adjusting device according to an embodiment of the present application when grabbing a multi-camera;

FIG. 7 is a schematic top view of a calibration cursor of a multi-camera and a calibration mark of a target plate of a multi-camera adjustment device before alignment according to an embodiment of the present application;

Fig. 8 is a schematic top view of a calibration cursor of a multi-camera and a calibration mark of a target plate of a multi-camera adjusting device after alignment according to an embodiment of the present application.

Reference numerals: 10. a multi-view camera; 11. a camera; 111. calibrating a cursor; 112. a camera body; 113. a camera support lug; 1131. positioning holes; 12. a bracket; 121. a mounting hole; 122. a holder main body; 123. a fixed block; 1231. a limit groove; 13. an elastic structural member; 20. a multi-camera adjusting device; 21. a target; 211. calibrating the mark; 22. a carrier assembly; 221. a load-bearing arm; 222. a load-bearing platform; 223. a target platform; 23. adjusting the jig; 231. a handle; 232. limiting clamping jaws; 2321. a connecting arm; 2322. positioning columns; 2323. and (5) positioning blocks.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Specifically, referring to fig. 1 and 3, the present application provides a multi-camera 10, where the multi-camera 10 may include a plurality of cameras 11, a bracket 12, and a plurality of elastic structural members 13. After the camera 11 is electrified, an imaging center of the camera 11 can be calculated through software according to pixel points of an imaging picture of the camera 11, a calibration cursor 111 is formed in the imaging center of the camera 11, the support 12 is provided with a plurality of mounting holes 121, the number of the mounting holes 121 corresponds to that of the camera 11, the plurality of the cameras 11 are respectively inserted into the mounting holes 121, and the elastic structural members 13 are respectively arranged between the camera 11 and the support 12. It will be appreciated that the camera 11 may be moved or rotated to calibrate the camera 11 prior to securing the camera 11. The elastic structure 13 is capable of deforming to support the camera 11 during movement or rotation of the camera 11. After the calibration of the camera 11 is completed, the camera 11 is fixedly connected with the bracket 12. In this way, the camera 11 is calibrated before being fixed on the bracket 12, and after calibration is completed, the camera 11 and the bracket 12 are structurally fixed, so that subsequent creep cannot occur to cause calibration failure.

More specifically, as shown in fig. 3, in one embodiment, the bracket 12 includes a bracket main body 122, a plurality of fixing blocks 123 protruding from the bracket main body 122, the fixing blocks 123 are respectively disposed on two sides of the mounting hole 121 correspondingly, the camera 11 includes a camera main body 112 inserted into the mounting hole 121 and camera lugs 113 protruding from two sides of the camera 11, and the camera lugs 113 are fixedly disposed on the fixing blocks 123, so as to fix the camera main body 112 on the bracket main body 122. So set up, when this camera journal stirrup 113 of the both sides of this camera main part 112 is snatched simultaneously, this camera journal stirrup 113 uses this camera main part 112 as the center, can drive this camera main part 112 steadily and remove or rotate, be convenient for the assembly personnel mark this camera main part 112 fast. The fixing blocks 123 are respectively disposed on two sides of the mounting hole 121 corresponding to the camera lugs 113, and after the calibration of the camera main body 112 is completed, a certain offset exists between the camera main body 112 and the bracket main body 122, so that the camera main body 112 cannot be fixed on the bracket main body 122 in a conventional manner, and the problem that the camera 11 cannot be fixed can be avoided by fixing the camera lugs 113 on the fixing blocks 123. The elastic structure 13 may be disposed between the camera body 112 and the stand body 122 to support the camera body 112 when the camera body 112 is calibrated; may also be disposed between the fixed block 123 and the camera lug 113 to support the camera lug 113 when the camera body 112 is calibrated.

Alternatively, as shown in fig. 3, in one embodiment, the fixing block 123 has a limiting groove 1231, and the camera support 113 is fixed in the limiting groove 1231. So set up, on the one hand this spacing groove 1231 can restrict the removal and the rotation range of this camera journal stirrup 113 and preliminary location this camera main part 112's position, makes this camera main part 112 only need through slightly adjusting can mark, on the other hand after this camera main part 112 marks, the cell wall of this spacing groove 1231 can be used for with this camera journal stirrup 113 fixed connection.

It will be appreciated that in order to enable the camera lug 113 to move or rotate within the limiting slot 1231, as shown in fig. 6, in one embodiment, the width of the camera lug 113 is less than the width of the limiting slot 1231. That is, the camera support 113 and the slot wall support 12 of the limiting slot 1231 have gaps, and when the camera body 112 is calibrated, the camera support 113 can move or rotate through the gaps. After the camera body 112 is calibrated, the gap can be filled by welding rods during welding, so that the camera support lug 113 and the groove wall of the limiting groove 1231 are tightly connected.

Preferably, as shown in fig. 3 and 6, in one embodiment, the elastic structural member 13 is a square elastic block, and the elastic block is disposed in the limiting groove 1231 to support the camera support lug 113. So set up, when this camera main part 112 is standard, this camera journal stirrup 113 will extrude this elastic block when rotating, and this elastic block warp in order to fill the tank bottom of this spacing groove 1231 and the angle change between this camera journal stirrup 113, after this camera main part 112 is standard, this camera journal stirrup 113 and this spacing groove 1231 fixed connection, this elastic block keeps the state after the deformation to be fixed in this spacing groove 1231 to support this camera journal stirrup 113.

More preferably, as shown in fig. 4, in one embodiment, the camera lugs 113 have positioning holes 1131. The positioning hole 1131 is used to cooperate with a calibration tool to drive the camera support 113 to rotate or move through the positioning hole 1131.

Further, referring to fig. 2, 7 and 8, in order to calibrate the multi-camera 10 described above, the present utility model provides a multi-camera adjusting device 20, wherein the multi-camera adjusting device 20 includes a target 21, a bearing assembly 22 and an adjusting jig 23. The target 21 has a calibration mark 211 for corresponding to the mounting hole 121 of the bracket 12 of the multi-camera 10, i.e. the position of the calibration mark 211 is the calibration position of the multi-camera 10. The target 21 is mounted to the carrier assembly 22, and the carrier assembly 22 is used for carrying the support 12 such that the support 12 is above the target 21. The adjusting tool 23 is disposed above the carrying component 22, and is used for grabbing and driving the camera 11 of the multi-camera 10 to rotate or move, so that the calibration cursor 111 of the camera 11 is aligned with the calibration mark 211. In other words, when assembling the multi-camera 10, the bracket 12 is first disposed on the carrier assembly 22, so that the mounting hole 121 of the bracket 12 corresponds to the calibration mark 211; then the camera 11 is inserted into the mounting hole 121 and electrified, after the camera 11 images, software calculates an imaging center of the camera 11 according to the pixel size, and forms a calibration cursor 111 at the imaging center of the camera 11, and meanwhile, the camera 11 shoots the calibration mark 211 on the target plate so as to have a position difference compared with the calibration cursor 111; then the camera 11 is grabbed by the adjusting jig 23, and the camera 11 is driven to rotate or move by the adjusting jig 23, so that a calibration cursor 111 formed by the imaging center of the camera 11 is overlapped with a calibration mark 211 aligned to the target 21; finally, the camera 11 is fixedly connected with the bracket 12. So set up, assembly personnel can mark this multi-mesh camera 10 through this multi-mesh camera adjusting device 20 when this multi-mesh camera 10 is assembled to because this mounting hole 121 corresponds with this demarcation sign 211 in advance, consequently only need adjust this camera 11 slightly can make this positioning cursor coincide with this demarcation sign 211, can simplify the demarcation step of multi-mesh camera 10, reduce the demarcation degree of difficulty of multi-mesh camera 10.

Optionally, as shown in fig. 3 and 4, in one embodiment, the adjusting tool 23 includes a handle 231 and a limiting jaw 232, the limiting jaw 232 includes a connecting arm 2321 fixed on the handle 231 and a pair of positioning posts 2322 fixed on two ends of the connecting arm 2321, and the positioning posts 2322 are used for being inserted into positioning holes 1131 of the camera support lugs 113 of the camera 11. In other words, the handle 231 may be disposed in the middle of the connecting arm 2321, two positioning columns 2322 may be disposed at two ends of the connecting arm 2321, the handle 231 and the positioning columns 2322 are disposed at two sides of the connecting arm 2321, and when the positioning columns 2322 are inserted into the positioning holes 1131 of the camera lugs 113, an assembler can drive the camera lugs 113 to rotate or move through the handle 231, so that the operation is simple and labor-saving. The limiting jaw 232 may be implemented as other structures capable of grabbing the camera 11 to rotate or move the camera 11.

Preferably, as shown in fig. 4 and 5, in one embodiment, the limiting jaw 232 further includes a positioning block 2323 protruding from an outer surface of the positioning post 2322, where the positioning block 2323 is configured to abut against the camera support lug 113. So set up, assembly personnel can extrude this camera journal stirrup 113 through this locating piece 2323 when driving this camera journal stirrup 113 through this regulation tool 23 and rotate to make this elastic block warp, thereby strengthen the ability of snatching of this spacing jack catch 232 to this camera 11, avoid this reference column 2322 to loosen from this locating hole 1131.

In particular, as shown in fig. 2, in one embodiment, the carrying assembly 22 includes a pair of carrying arms 221, a carrying platform 222 fixedly arranged on the carrying arms 221, and a target platform 223 slidably connected to the carrying arms 221, wherein the carrying platform 222 is used for carrying the support 12, and the target 21 is mounted on the target platform 223. So configured, the target platform 223 can slide along the load-bearing wall away from or towards the load-bearing platform 222 to accommodate multiple cameras 10 of various angles or profiles.

It is noted that in one embodiment, as shown in fig. 7 and 8, the calibration mark 211 and the calibration cursor 111 are cross-shaped to more accurately align the calibration cursor 111 to the calibration mark 211 at the assembler.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A multi-view camera, comprising:

a plurality of cameras;

The bracket is provided with a plurality of mounting holes, and a plurality of cameras are respectively inserted into the mounting holes; and

The elastic structural members are respectively arranged between the camera and the bracket.

2. The multi-camera according to claim 1, wherein the bracket comprises a bracket body, a plurality of fixing blocks protruding from the bracket body, the fixing blocks are respectively and correspondingly arranged on two sides of the mounting hole, the camera comprises a camera body inserted into the mounting hole and a camera support lug protruding from two sides of the camera, and the camera support lug is fixedly arranged on the fixing blocks so as to fixedly arrange the camera body on the bracket body.

3. The multi-view camera of claim 2, wherein the fixed block has a limiting groove, and the camera lugs are fixedly arranged in the limiting groove.

4. A multi-view camera as recited in claim 3, wherein the width of the camera lugs is less than the width of the limit slot.

5. A multi-camera according to claim 3, wherein the elastic structural member is a square elastic block, and the elastic block is disposed in the limiting groove to support the camera support lugs.

6. The multi-view camera of claim 2, wherein the camera lugs have locating holes.

7. A multi-camera adjustment device for calibrating a multi-camera according to any one of claims 1 to 6, comprising:

The target plate is provided with a calibration mark corresponding to the mounting hole of the bracket of the multi-purpose camera;

the bearing assembly is used for bearing the bracket so that the bracket is positioned above the target; and

The adjusting jig is arranged above the bearing assembly and used for grabbing and driving the camera of the multi-camera to rotate or move so that a calibration cursor imaged after the camera is electrified is aligned with the calibration mark.

8. The device of claim 7, wherein the adjusting jig comprises a handle and a limiting jaw, the limiting jaw comprises a connecting arm fixedly arranged on the handle and a pair of positioning posts fixedly arranged at two ends of the connecting arm, and the positioning posts are used for being inserted into positioning holes of camera lugs of the camera.

9. The device of claim 8, wherein the limiting jaw further comprises a positioning block protruding from an outer surface of the positioning post, the positioning block being configured to abut against the camera lug.

10. The device of claim 7, wherein the carrier assembly comprises a pair of carrier arms, a carrier platform fixedly mounted to the carrier arms and a target platform slidably coupled to the carrier arms, the carrier platform being configured to carry the support, the target being mounted to the target platform.