Cargo size measuring device
By designing an automated device for cargo size measurement, using lidar and three-dimensional detection technology, the problems of low efficiency and poor accuracy of manual measurement in the prior art are solved, and accurate measurement of large or special-shaped cargoes are achieved and automatic data acquisition is achieved.
Patent Information
- Application Number
- CN202421638149.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The existing cargo size measurement methods rely on manual operations, which leads to inconvenience and inaccuracy when measuring large or special-shaped goods. The input and confirmation of measurement data also require manual participation, which is prone to errors.
A cargo size measurement device is designed, using lidar and three-dimensional shape detection mechanism to guide cargo into the measurement area through conveying lines and door-shaped frames, and using sliding bases and driving mechanisms to scan the lidar from both sides and top of the cargo, realizing automatic measurement and data acquisition.
Automatic and accurate measurement of cargo size is realized, especially suitable for large or special-shaped cargo, reducing the errors and complexity of manual operations and improving measurement efficiency and accuracy.
Smart Images

Figure CN222881951U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transportation devices, in particular to a cargo size measuring device. Background Art
[0002] In logistics transportation, such as air transportation of goods, in order to improve loading efficiency and save shipping costs, the shipper packs small packages of goods together to form a large package. Before shipping, the weight and size of the goods need to be measured in order to estimate the shipping cost.
[0003] The current method of measuring the external dimensions of goods is manual measurement, using a tape measure to measure the size of large packages.
[0004] This results in the following problems: when the size of the goods is too large, manual operation is inconvenient; for special-shaped goods, especially those with protruding corners, manual measurement cannot accurately measure the size of the goods; the measured size data of the goods needs to be manually entered into the system for storage, which is prone to errors, and the correspondence between the goods and the measured size needs to be manually confirmed. Utility Model Content
[0005] The utility model designs a cargo size measuring device to solve the problem of low efficiency in current aviation cargo size measuring work.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cargo size measuring device, comprising a conveyor line for conveying cargo, the gate-shaped frame spanning the conveyor line, the three-dimensional shape detection mechanism comprising rail beams fixed to the middle position of the top and the two sides of the gate-shaped frame along the extension direction of the conveyor line, a sliding base axially slidably mounted on the rail beam, a laser radar fixed on the sliding base, and a driving mechanism for driving the sliding base to slide back and forth along the rail beam.
[0007] Preferably, the rail beam is externally covered with a protective cover shell, and the protective cover shell is provided with a side opening along the axial direction at a position corresponding to the sliding base.
[0008] Preferably, the rail beam comprises a profile beam body fixed on the door-shaped frame, a fixing plate fixed on the profile beam body, and guide rails fixed in pairs on the fixing plate along the axial direction, and the sliding base is slidably mounted on the guide rails.
[0009] Preferably, the fixing plate is respectively fixed with limiting plates at positions corresponding to both ends of the guide rail.
[0010] Preferably, the driving mechanism includes a power component and a transmission component, the power component includes an L-shaped support plate 1 fixed to one end of the fixed plate, a servo motor fixed on the L-shaped support plate 1, and a driving wheel fixedly mounted on the power output shaft of the servo motor, the transmission component includes an L-shaped support plate 2 fixed to the other end of the fixed plate and a driven wheel rotatably mounted on the L-shaped support plate 2, the driving wheel and the driven wheel are connected by a transmission belt, and the sliding base is fixed on the transmission belt.
[0011] Preferably, the profile beam body and the fixing plate are made of aluminum alloy.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model relates to a cargo size measuring device which realizes automatic measurement of cargo size, reduces manual participation and is easy to operate; it accurately provides cargo size through laser radar scanning technology, and especially provides accurate shape and volume data for cargo with irregular shapes, which is convenient for real-time corresponding archiving of contours and shape dimensions, reduces the workload of manual input and archiving, and is convenient for manual identification and confirmation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0015] Figure 2 It is a three-dimensional structural schematic diagram of the three-dimensional shape detection mechanism of the utility model;
[0016] Figure 3 It is a three-dimensional structural schematic diagram of the rail beam of the utility model;
[0017] Figure 4 It is a three-dimensional structural schematic diagram of the power assembly of the utility model;
[0018] Figure 5 It is a three-dimensional structural schematic diagram of the transmission assembly of the utility model.
[0019] In the figure: 1- conveyor line;
[0020] 2- Door-shaped frame;
[0021] 3-three-dimensional shape detection mechanism; 31-rail beam; 311-profile beam body; 312-fixed plate; 313-guide rail; 314-limiting plate; 32-power assembly; 321-L-shaped support plate 1; 322-servo motor; 323-driving wheel; 33-transmission assembly; 331-L-shaped support plate 2; 332-driven wheel; 34-sliding base; 35-laser radar; 36-protective cover shell; 361-side opening. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-2 The utility model provides a technical solution, a cargo size measuring device, comprising a conveyor line 1 for conveying cargo, a door-shaped frame 2 spanning the conveyor line 1, a three-dimensional shape detection mechanism 3 comprising a rail beam 31 fixed to both sides and the middle position of the top of the door-shaped frame 2 along the extending direction of the conveyor line 1, a sliding base 34 axially slidably mounted on the rail beam 31, a laser radar 35 fixed on the sliding base 34, and a driving mechanism for driving the sliding base 34 to slide back and forth along the rail beam 31.
[0024] In summary, the conveyor line 1 conveys the goods to the corresponding position of the inner cavity of the door-shaped frame 2; the driving mechanism drives the sliding base 34 to slide back and forth along the rail beam 31, so that the laser radar 35 scans the goods from both sides and the top to obtain the three-dimensional contour and size of the goods. In order to obtain the photo information of the goods, a camera can also be installed on the top of the door-shaped frame 2; in order to obtain the weight information of the goods, a weighing device can also be integrated and installed on the conveyor line 1. After each measurement of the size of the goods, the camera records the photo of the goods and archives it corresponding to the size, volume, weight data of the goods, etc., so as to facilitate the identification and confirmation of the goods at a later time.
[0025] Among them, the laser radar 35 can process, store and build models of the data after scanning the goods, and can adopt technologies similar to a modeling method based on massive laser radar grid point cloud data (CN102306180B). Since laser scanning and its three-dimensional modeling technology and data processing and storage technology are all existing technologies, they are not described here. The laser radar 35 can adopt a model device such as SICK laser radar scanner LMS511-20100.
[0026] See also Figure 2 The rail beam 31 is covered with a protective cover 36 on the outside. The protective cover 36 is provided with a side opening 361 in the axial direction corresponding to the position of the sliding base 34. The protective cover 36 is convenient for protecting the driving mechanism and the laser radar 35.
[0027] See also Figure 3The rail beam 31 includes a profile beam body 311 fixed on the door-shaped frame 2, a fixing plate 312 fixed on the profile beam body 311, and guide rails 313 fixed to the fixing plate 312 in pairs along the axial direction, and the sliding base 34 is slidably mounted on the guide rails 313. The fixing plate 312 is respectively fixed with limit plates 314 at positions corresponding to the two ends of the guide rail 313. When the sliding base 34 reciprocates along the guide rail 313, the limit plates 314 at the two ends limit the sliding base 34 to prevent the sliding base 34 from derailing.
[0028] See also Figure 4-5 The driving mechanism includes a power assembly 32 and a transmission assembly 33. The power assembly 32 includes an L-shaped support plate 1 321 fixed to one end of the fixed plate 312, a servo motor 322 fixed to the L-shaped support plate 1 321, and a driving wheel 323 fixedly mounted on the power output shaft of the servo motor 322. The transmission assembly 33 includes an L-shaped support plate 2 331 fixed to the other end of the fixed plate 312 and a driven wheel 332 rotatably mounted on the L-shaped support plate 2 331. The driving wheel 323 and the driven wheel 332 are connected by a transmission belt, and the sliding base 34 is fixed on the transmission belt. The servo motor 322 drives the driving wheel 323 to rotate, and the transmission mechanism composed of the driving wheel 323, the driven wheel 332 and the transmission belt drives the sliding base 34 to slide along the guide rail 313. Among them, the driving wheel 323 and the driven wheel 332 can be gears, and the transmission belt is a toothed belt meshed with them.
[0029] The profile beam body 311 and the fixing plate 312 are made of aluminum alloy.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A cargo size measuring device, comprising a conveyor line (1) for conveying cargo, characterized in that: Also includes: A door-shaped frame (2), the door-shaped frame (2) spanning the conveying line (1); as well as A three-dimensional shape detection mechanism (3), the three-dimensional shape detection mechanism (3) comprising a rail beam (31) fixed to the middle position of both sides and the top of the door-shaped frame (2) along the extension direction of the conveyor line (1), a sliding base (34) axially slidably mounted on the rail beam (31), a laser radar (35) fixed on the sliding base (34), and a driving mechanism for driving the sliding base (34) to slide back and forth along the rail beam (31).
2. A cargo size measuring device according to claim 1, characterized in that: The rail beam (31) is covered with a protective cover shell (36) on the outside, and the protective cover shell (36) is provided with a side opening (361) along the axial direction at a position corresponding to the sliding base (34).
3. A cargo size measuring device according to claim 1, characterized in that: The rail beam (31) comprises a profile beam body (311) fixed on the door-shaped frame (2), a fixing plate (312) fixed on the profile beam body (311), and guide rails (313) fixed in pairs on the fixing plate (312) along the axial direction, and the sliding base (34) is slidably mounted on the guide rails (313).
4. A cargo size measuring device according to claim 3, characterized in that: The fixing plate (312) is respectively fixed with limiting plates (314) at positions corresponding to the two ends of the guide rail (313).
5. The cargo size measuring device according to claim 3, characterized in that: The driving mechanism comprises a power assembly (32) and a transmission assembly (33); the power assembly (32) comprises an L-shaped support plate (321) fixed to one end of the fixed plate (312), a servo motor (322) fixed to the L-shaped support plate (321), and a driving wheel (323) fixedly mounted on a power output shaft of the servo motor (322); the transmission assembly (33) comprises an L-shaped support plate (331) fixed to the other end of the fixed plate (312) and a driven wheel (332) rotatably mounted on the L-shaped support plate (331); the driving wheel (323) and the driven wheel (332) are connected to each other by a transmission belt, and the sliding base (34) is fixed on the transmission belt.
6. A cargo size measuring device according to claim 3, characterized in that: The profile beam body (311) and the fixing plate (312) are made of aluminum alloy.
Citation Information
Patent Citations
Modeling method based on mass laser radar grid point cloud data
CN102306180B