CN118293824A - Acceptance device for improving size measurement accuracy of air freight beating plate - Google Patents

Abstract

The application relates to the technical field of size acceptance of air freight threshing plates, and particularly discloses an acceptance device for improving size measurement accuracy of air freight threshing plates. According to the scheme, at least one 3D vision device is arranged near a flat plate loaded with the air freight to be tested, particularly between the inclined side surface of the air freight to be tested and the flat plate of the trolley, so that more accurate point cloud data information of the air freight to be tested and the flat plate of the trolley can be obtained, the air freight to be tested and the flat plate of the trolley can be scanned more comprehensively, finally, the measured outline size of the air freight to be tested is more accurate, the size acceptance accuracy of the air freight printing plate is improved, and the loss of air freight cost is avoided.

Description

Acceptance device for improving size measurement accuracy of air freight beating plate

Technical Field

The application relates to the technical field of size acceptance of air freight transportation beating plates, in particular to a device for placing an air freight transportation piece on a trolley and measuring the size of the air freight transportation piece with high precision.

Background

In the air freight industry, the freight to be transported is generally required to be packed into a whole large piece (the process is called as a board beating process), and then the whole large piece is loaded into an air freight bin, if the packing is too large, the whole large piece cannot be loaded into the air freight bin, and needs to be repacked, however, the residence time of the freight aircraft is limited, the whole large piece is repacked for quite long time, basically, the freight aircraft flies away, and the whole large piece is not completely repacked, so when the whole large piece is packed too large, the waste of the air freight bin is caused due to the fact that the plug is not loaded into the air freight bin, and further, the loss of freight cost is caused, therefore, the size of the air freight bin needs to be checked in advance, the outline size of the packed freight piece is measured in advance, and then whether the freight piece can be loaded into the air freight bin is judged.

In the prior art, the air freight to be measured is usually loaded on a trolley flat plate (e.g. 300 in fig. 1), and then transported to a measurement area by a trolley, when calculating the outer contour size of the air freight to be measured, the height of the trolley flat plate from the ground is usually calculated, for example, 20 cm, then the surface 20 cm from the ground is taken as an interface, or the surface (default surface) of the trolley flat plate on which goods are loaded is taken as an interface, and the size of the part below the interface is not calculated in the size calculation of the air freight to be measured, so that the size of the trolley can be removed, and the actual outer contour size of the air freight to be measured is obtained. In the conventional acceptance device with 3D vision, the 3D vision devices are generally only arranged at four corners or above the vicinity of four sides of the air freight piece to be tested to perform three-dimensional scanning, and because the 3D vision devices are far away from the trolley flat plate, the obtained point cloud data information is not accurate enough, and in addition, the problem that the trolley flat plate on which the air freight piece to be tested is loaded is difficult to scan comprehensively, finally, the dimension measurement is not accurate enough, and because the trolley flat plate cannot always be horizontal, sometimes the trolley flat plate can incline, and an error exists between the real height of the trolley flat plate from the ground and a set fixed value (for example, 20 cm) is likely to exist, if the obtained point cloud data is not accurate enough, the position of the interface is likely to be confirmed, so that the measured outline size of the air freight piece is not accurate enough, and in addition, as shown in fig. 1, the two sides of the air freight piece to be tested, which are close to the bottom of the air freight piece to be tested are not completely vertical, the conventional air freight piece is likely to be tested, and the error is likely to be formed into the shape, and the error is likely to be formed in the shape of the bottom of the aircraft, and the error can not be obtained, and the error can result in the error in the acceptance of the conventional technology, and the error can not be obtained, and the information is likely to be the accurate in the position of the bottom of the air freight piece to be well-shaped, and the error is likely to be well inclined, and the error in the position and the freight piece is far accurate.

Disclosure of Invention

In view of the above problems, the present application aims to provide an acceptance device for improving the dimensional measurement accuracy of an air freight transportation pallet, so as to solve the problem that the outer contour dimension of an air freight transportation member measured in the existing acceptance device is not accurate.

In order to achieve the above purpose, the present application adopts the following technical scheme: an acceptance device for improving the dimensional measurement precision of an air freight beater comprises a plurality of 3D vision devices, wherein at least one 3D vision device is arranged near the bottom of an air freight piece to be measured.

Further, the vicinity of the bottom of the air freight piece to be tested specifically refers to the vicinity of a flat plate loaded with the air freight piece to be tested.

Further, the air cargo piece to be tested has at least one inclined side surface, which is close to the bottom of the air cargo piece to be tested, and the vicinity of the bottom of the air cargo piece to be tested specifically means between the inclined side surface and the flat plate.

Further, the acceptance device at least comprises two 3D vision devices arranged up and down, the 3D vision devices positioned below are arranged between the inclined side face and the flat plate, the 3D vision devices are line laser rotary scanning 3D vision devices, the two line laser rotary scanning 3D vision devices arranged up and down are recorded as a group of rotary measurement modules, the acceptance device at least comprises four groups of rotary measurement modules, and the four groups of rotary measurement modules are respectively arranged near four corners of the to-be-tested air freight piece.

The beneficial effects are that: the acceptance device provided by the application comprises a plurality of 3D vision devices, wherein at least one 3D vision device is arranged near a flat plate loaded with the to-be-tested air freight piece, and particularly is arranged between the inclined side surface of the to-be-tested air freight piece and the flat plate of the trolley, so that more accurate point cloud data information of the to-be-tested air freight piece and the flat plate of the trolley can be obtained, the scanning is more comprehensive, the measured outline size of the to-be-tested air freight piece is more accurate, the size acceptance accuracy of the air freight is increased, and the loss of air freight cost is finally avoided.

Drawings

Fig. 1 is a schematic structural diagram of an acceptance device for improving the dimensional measurement accuracy of an air freight hit plate according to an embodiment of the present application;

FIG. 2 is a schematic view of the 3D vision apparatus in the inspection apparatus for improving the dimensional accuracy of an air cargo pallet according to FIG. 1;

FIG. 3 is a schematic view of an aircraft cargo that may be stowed into an aircraft cargo space;

fig. 4 is a schematic view of an air cargo not being stowed into an aircraft cargo space.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.

It should be explained that, the air freight pallet specifically means that the air freight to be transported is packaged into a whole large piece and then is mounted on a pallet or in a container for convenient loading, transportation and unloading, and the packaged air freight piece is required to be subjected to size acceptance after being pallet-mounted and then is reloaded into an air freight space. The size acceptance of the air freight flighting means that whether the freight piece can be loaded into the air freight space or not is judged according to the preset air freight space and the size of the cabin door, and when the freight piece can pass through the preset air cabin door and be loaded into the air freight space, the acceptance is qualified; and when the freight piece cannot pass through a preset aircraft cabin door and/or cannot be loaded into an aircraft cabin, checking is not qualified. If the acceptance is not acceptable, the representative is packed too large, and it is necessary to repackage the cargo aircraft before it comes to avoid loss of freight cost.

It should be noted that, referring to fig. 1, the air cargo piece X to be tested is generally shaped like a cuboid as a whole, and includes four corners ABCD, where AB is one diagonal, and CD is the other diagonal; in addition to the bottom and top surfaces, the air cargo piece X to be tested generally includes four side surfaces disposed in pairs, some of the side surfaces of the air cargo piece X to be tested are not completely vertical, and some of the side surfaces are inclined inward at a portion near the bottom of the air cargo piece X to be tested, such as inclined side surface X1.

It should be noted that, referring to fig. 2, the 3D vision device at least includes one camera 110 and one laser 120, and of course, in other embodiments, the number of the cameras 110 and/or the lasers 120 in the 3D vision device 100 may be 2 or more, and the number of the two may be arbitrarily matched and combined according to the requirement. Preferably, the 3D vision device may be: the monocular line laser scanning 3D camera may also be: binocular line laser scanning 3D cameras. While the laser 120 scans (rotational scan or linear scan) the air cargo piece X to be tested, the camera 110 synchronously photographs the air cargo piece X to be tested, and then a three-dimensional model (point cloud image) of the air cargo piece X to be tested can be generated, so that the size information of the outline of the air cargo piece X to be tested can be obtained according to the data information in the point cloud image.

In view of the problems existing in the prior art, the present application provides an acceptance device for improving the dimensional measurement accuracy of an air freight beater, so as to solve the problems, and the following description is specific with reference to the accompanying drawings. The acceptance device comprises a plurality of 3D vision devices, wherein at least one 3D vision device is arranged near the bottom of the air freight piece X to be tested, specifically, near the plate 300 loaded with the air freight piece X to be tested, preferably, the plate 300 of the trolley, of course, the plate 300 can also be a fixed plate, the air freight piece X to be tested is placed on the plate 300 during measurement, and the plate 300 contacts with the bottom surface of the air freight piece X to be tested during measurement, so that if a more accurate size is required, the point cloud data information of the plate 300 needs to be obtained, and the 3D vision device needs to be separately arranged near the bottom of the air freight piece X to be tested (specifically, near the plate 300), so that the distance is closer to be scanned more accurately, so that the interface is more accurately determined. For the air cargo X to be measured, which is inclined on the side near the bottom, in order to obtain high-precision measurement, more accurate point cloud data information needs to be obtained, and more specifically, a 3D vision device is disposed between the inclined side X1 and the plane 300. The acceptance device comprises at least two 3D vision devices arranged up and down, the lower 3D vision device being arranged near the trolley slab 300, further the lower 3D vision device being arranged between the inclined side X1 and the slab 300. Preferably, at least near one corner and/or near one side of the air cargo X to be tested is provided with a plurality of sets of 3D vision devices arranged up and down, and the air cargo X to be tested is scanned and/or photographed through the plurality of sets of 3D vision devices arranged up and down.

First embodiment: referring to fig. 1 to 2, the 3D vision device is a line laser rotation scanning 3D vision device 100, the acceptance device at least includes two line laser rotation scanning 3D vision devices 100 arranged up and down, the two line laser rotation scanning 3D vision devices 100 arranged up and down are recorded as a group of rotation measurement modules, the acceptance device at least includes four groups of rotation measurement modules, and the four groups of rotation measurement modules are respectively arranged near four corners of an air freight part X to be tested. Specifically, the acceptance device includes a first line laser rotary scanning 3D vision device 101, a second line laser rotary scanning 3D vision device (not shown in fig. 1 for view angle reasons), a third line laser rotary scanning 3D vision device 103, a fourth line laser rotary scanning 3D vision device 104, a fifth line laser rotary scanning 3D vision device 105, a sixth line laser rotary scanning 3D vision device 106, a seventh line laser rotary scanning 3D vision device 107, an eighth line laser rotary scanning 3D vision device 108, the first line laser rotary scanning 3D vision device 101 and the second line laser rotary scanning 3D vision device are denoted as a first group of rotary measurement modules, the first line laser rotary scanning 3D vision device 101 is located above the second line laser rotary scanning 3D vision device, the third line laser rotary scanning 3D vision device 103 and the fourth line laser rotary scanning 3D vision device 104 are denoted as a second group of rotary measurement modules, the third line laser rotary scanning 3D vision device 103 is located above the fourth line laser rotary scanning 3D vision device 104, the fifth line laser rotary scanning 3D vision device 105 and the sixth line laser rotary scanning 3D vision device 108 are located above the fourth line laser rotary scanning 3D vision device 106, and the seventh line laser rotary scanning 3D vision device 108 is denoted as a fourth group of rotary measurement modules, and the fifth line laser rotary scanning 3D vision device 108 is located above the fourth line laser rotary scanning 3D vision device 106. The first set of rotation measuring modules and the second set of rotation measuring modules are respectively arranged near the opposite corners (AB) of the air freight piece X to be measured, and the third set of rotation measuring modules and the fourth set of rotation measuring modules are respectively arranged near the other opposite Corners (CD) of the air freight piece X to be measured.

Further, a first way of implementing a rotational scan may be: the acceptance device provided in this embodiment further includes a lens, the lens is mounted on a scanning path (specifically, a path of laser emission) of the laser 120, and a rotation scanning mode of the laser 120 is as follows: the laser light is irradiated onto the rotationally scanned mirror so that the laser 120 can rotationally scan. The laser 120 may be fixed on the mounting plate 130, the lens may be driven by a motor to perform a rotational movement, and the motor may be fixedly mounted on the mounting plate 130, so that when the laser light emitted by the laser 120 irradiates the lens, the lens reflects the laser light onto the air cargo piece X to be tested through the rotational movement, so that the laser light emitted by the line laser rotational scanning 3D vision device 100 may scan the air cargo piece X to be tested, and the 3D vision device 100 may implement the rotational scanning of the air cargo piece X to be tested. Preferably, the mirror is a mirror; more preferably, the laser 120 may also perform a rotational scan by vibrating a mirror.

Further, a second way of implementing a rotational scan may be: the line laser rotary scanning 3D vision apparatus 100 includes a laser 120 and a rotation mechanism, where the laser 120 is mounted on the rotation mechanism, and this is implemented by directly driving the laser 120 to rotate by using the rotation mechanism, specifically, the rotation mechanism includes a motor, where the motor may be fixed on a mounting board 130, and an output end of the motor is fixed to one end of the laser 120 through a mounting block, so that the laser 120 as a whole may perform a rotary motion under the driving of the motor, and thus implementing the rotary scanning.

Specific embodiment II: the acceptance device further comprises a linear motion mechanism, the 3D vision device is arranged on the linear motion mechanism and forms a measuring module, the 3D vision device is driven to conduct linear motion through the linear motion mechanism, three-dimensional scanning of the air freight piece X to be tested is completed, and the acceptance device at least comprises two measuring modules which are arranged up and down. Preferably, the two measuring modules arranged up and down are marked as a group of linear measuring modules, and the acceptance device at least comprises four groups of linear measuring modules which are respectively arranged near four sides of the air freight piece X to be tested. Preferably, the measuring module located below is arranged between the aforementioned inclined side X1 and the plate 300.

By installing a plurality of 3D vision devices near four corners and/or four sides of the air freight piece to be tested to perform rotational three-dimensional scanning or linear three-dimensional scanning, especially at least one (preferably four) 3D vision device is near the bottom of the air freight piece to be tested (near the trolley flat plate or between the inclined sides X1 and the flat plate 300), the trolley flat plate 300 loaded with the air freight piece to be tested and the inclined sides X1 can be scanned more comprehensively, and a more accurate three-dimensional model (point cloud data information) of the air freight piece to be tested and the trolley flat plate 300 can be obtained, so that the measured outline size of the air freight piece to be tested is more accurate, the size acceptance accuracy of the air freight is increased, and the loss of air freight cost is avoided. After the measurement is finished, accurate length, width, height and other size information of the freight piece is obtained, whether the freight piece can be loaded into an aircraft freight space or not is judged according to the preset aircraft space and the size of a door, as shown in fig. 3, the freight piece can pass through the preset aircraft door and be loaded into the aircraft space, at the moment, the size of an air freight pallet is accepted and accepted without repacking, as shown in fig. 4, when the freight piece is packed too high or too wide, the freight piece cannot pass through the preset aircraft door and cannot be loaded into the preset aircraft space, at the moment, the size of the air freight pallet is accepted disqualified, and repacking is needed. Therefore, before the freight aircraft arrives, whether the packed air freight piece can be loaded into the aircraft freight space or not can be accurately judged, whether repacking is needed or not is judged in advance, and the loss of air freight cost caused by inaccurate measurement is avoided.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. It is further to be understood that the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, as the term would be understood to one of ordinary skill in the art, in view of the detailed description of the application, unless explicitly stated or defined otherwise.

Finally, it should be noted that: the above examples are only specific embodiments of the present application, and are not intended to limit the scope of the present application, but it should be understood by those skilled in the art that the present application is not limited thereto, and that the present application is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the corresponding technical solutions. Are intended to be encompassed within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (4)

1. An acceptance device for improving the dimensional measurement accuracy of an air freight beater, characterized in that it comprises a plurality of 3D vision devices, at least one of which is arranged near the bottom of an air freight piece (X) to be measured.

2. Acceptance device for increasing the dimensional accuracy of air freight pallets according to claim 1, characterised in that the vicinity of the bottom of the air freight piece (X) to be tested refers in particular to the vicinity of the flat plate (300) on which the air freight piece (X) to be tested is mounted.

3. An acceptance device for increasing the dimensional accuracy of air freight pallets according to claim 2, characterised in that said air freight piece (X) to be tested has at least one inclined side (X1), the inclined side (X1) being close to the bottom of said air freight piece (X) to be tested, in particular between the inclined side (X1) and said flat plate (300).

4. A checking and accepting device for improving the dimensional measurement precision of an air freight transportation and beating plate according to claim 3, wherein the checking and accepting device at least comprises two 3D vision devices arranged up and down, the lower 3D vision device is arranged between the inclined side surface (X1) and the flat plate (300), the 3D vision device is a line laser rotary scanning 3D vision device (100), the two line laser rotary scanning 3D vision devices (100) arranged up and down are marked as a group of rotary measurement modules, the checking and accepting device at least comprises four groups of rotary measurement modules, and the four groups of rotary measurement modules are respectively arranged near four corners of an air freight transportation and beating plate (X) to be tested.