Intelligent goods shelf system based on Internet of Things technology

Abstract

The invention relates to the field of warehouse management, in particular to an intelligent goods shelf system based on the Internet of Things technology, which comprises a cabinet body, a plurality of supporting plates are horizontally arranged in the cabinet body along the vertical direction, and a plurality of groups of movable trays are horizontally arranged at the top ends of the supporting plates along the length direction of the supporting plates; a conveying module for driving the tray to move is fixedly arranged on the supporting plate, a detection unit for detecting the position of the tray is arranged on the supporting plate, a lifting unit for driving the tray to ascend and descend is fixedly arranged on the side portion of the cabinet body, and a control panel is fixedly arranged on the side portion of the cabinet body. Space can be fully utilized, full-automatic accurate control is carried out when goods are stored and taken, manual intervention is reduced, meanwhile, data can be uploaded to a cloud database, an inventory management strategy is optimized, the position and state of the tray can be monitored in real time, goods can be conveniently operated, and the working efficiency is improved. And remote monitoring and management can be realized through Internet connection, so that the intelligent level of the system is improved.

Description

Technical Field

[0001] The present invention relates to the field of warehouse management, and more specifically, to an intelligent shelf system based on Internet of Things technology. Background Art

[0002] Traditional warehousing management systems rely on manual operations and have many drawbacks, such as low space utilization, frequent manual intervention, and opaque data management. These problems lead to low operational efficiency and frequent errors. Specifically, traditional shelves do not fully utilize vertical space, resulting in low storage density; the access of goods mainly depends on manual labor, which is not only inefficient but also prone to losses due to human errors. In addition, the lack of real-time data collection and analysis means makes the update of inventory status lag, and it is difficult for managers to obtain accurate inventory information, thus affecting the effectiveness of inventory management strategies.

[0003] Although there are some automated shelf systems in the market that attempt to solve these problems, the automation level of these systems is limited, the data analysis ability is insufficient, and the lack of real-time monitoring function still cannot fully meet the needs of modern warehousing management.

[0004] The Chinese patent with the application number 202211470293.0 discloses a three-dimensional intelligent shelf device, which includes a plurality of roller conveyors arranged in parallel. The roller conveyor includes an inner frame and an outer frame; through the cooperation of the roller conveyor, connecting seat one, connecting seat two, connecting seat three, and fixed seat set in the present invention, a three-dimensional flow-type shelf can be used to replace the traditional fixed shelf, so that when loading or unloading goods, the goods on the same layer of the shelf can be moved and circulated, and the storage situation and condition of each good can be clearly seen, which is convenient for staff to manage, and at the same time, the flexibility of loading or unloading goods is also increased.

[0005] The Chinese patent with the application number 202410534820.2 discloses a logistics warehousing intelligent shelf, which includes a shelf body, a goods pusher, a pusher layer-changing mechanism, a goods lifting platform, and a control module. The pusher layer-changing mechanism drives the track docking seat to move to the designated storage board layer and be flush with the track according to the instruction of the control module; the goods pusher includes a main body, a folding arm, and walking wheels, and an optoelectronic alignment module is arranged between two goods pushers; the goods lifting platform is located at the end of the shelf body; a number of addressing points are arranged at equal intervals on the track, and an addresser is arranged on the goods pusher. The present invention has relatively low cost and is flexible to use, and can realize intelligent picking and placing of goods for scattered orders.

[0006] However, the following problems still exist in practical applications, specifically:

[0007] 1. Limited automation: Although both patents achieve a certain degree of automation, a significant amount of manual intervention is still required during the storage and retrieval of goods, and full-automatic precise control has not been achieved.

[0008] 2. Insufficient data analysis capabilities: Most existing automated storage rack systems fail to fully utilize big data analysis technology to generate detailed inventory reports and prediction models for optimizing inventory management strategies.

[0009] 3. Lack of real-time monitoring function: Neither of the two patents provides a comprehensive real-time monitoring function, making it impossible to dynamically track the position and status of pallets, increasing the risk of misoperation.

[0010] 4. Weak remote monitoring and management capabilities: Although existing systems have a certain degree of Internet connection function, the support for remote monitoring and management is relatively limited, making it difficult to meet complex warehousing requirements.

[0011] Therefore, how to overcome the above-mentioned technical problems and defects has become the key issue to be solved. Summary of the Invention

[0012] The object of the present invention is to overcome the defects described in the background technology, so as to realize an intelligent storage rack system based on Internet of Things technology. This system can make full use of space, improve storage density, and perform full-automatic precise control during the storage and retrieval of goods, making the storage and retrieval of goods more efficient, reducing manual intervention. At the same time, it can upload data to the cloud database, use big data analysis technology to generate detailed inventory reports and prediction models, optimize inventory management strategies, and can also real-time monitor the position and status of pallets for easy operation of goods, and can achieve remote monitoring and management through Internet connection to improve the intelligent level of the system.

[0013] To achieve the above object of the invention, the technical solution of the present invention is: An intelligent storage rack system based on Internet of Things technology, including a cabinet body. Inside the cabinet body, a plurality of trays are horizontally arranged in the vertical direction. Along the length direction of the top of the tray, a plurality of groups of movable pallets are horizontally arranged. A conveying module for driving the movement of the pallet is fixedly arranged on the tray. A detection unit for detecting the position of the pallet is arranged on the tray. A lifting unit for driving the lifting of the pallet is fixedly arranged on the side of the cabinet body. A control panel is fixedly arranged on the side of the cabinet body.

[0014] In the above intelligent storage rack system based on Internet of Things technology, the cabinet body is made of transparent material. The cabinet body includes side plates and a top plate. There are three side plates which are fixedly connected to form a rectangular structure. At the four corners inside the cabinet body, vertical columns are fixedly arranged.

[0015] In the above intelligent shelf system based on Internet of Things technology, the tray is a rectangular box body with an open top. A pressure sensor is horizontally and fixedly arranged inside the tray, and an isolation gasket is arranged at the top end of the pressure sensor.

[0016] In the above intelligent shelf system based on Internet of Things technology, the conveying module includes a pushing unit. The pushing unit includes pushing grooves vertically opened along the width direction on the supporting plates on both sides of the tray, and the pushing grooves penetrate through the supporting plates up and down.

[0017] A plurality of pushing frames are horizontally arranged at the top end of the supporting plate. The pushing frames are of U-shaped structures, and their opening parts are located on both sides of the corresponding trays. Both ends of the pushing frames slide in the corresponding pushing grooves. A first lead screw is horizontally and rotatably arranged at the bottom end of the supporting plate along its width direction. The first lead screw penetrates through the bottom end of the corresponding pushing frame and is threadedly connected with the pushing frame. A first bidirectional motor for driving the first lead screw to rotate is fixedly arranged at the side part of the supporting plate.

[0018] First electric push rods are fixedly arranged at both ends of the pushing frame, and the telescopic parts of the first electric push rods are arranged oppositely.

[0019] A first stop bar is fixedly arranged at the top end of the supporting plate on the opposite side of the first bidirectional motor along the length direction of the supporting plate. A first magnet corresponding to the position of the tray is fixedly arranged on the first stop bar, and a second magnet adapted to the first magnet is fixedly arranged on the side part of the tray facing the first stop bar.

[0020] In the above intelligent shelf system based on Internet of Things technology, the conveying module includes a conveying unit. The conveying unit includes a conveying groove opened along the length direction of the supporting plate on the side part of the first stop bar, and the conveying groove penetrates through the supporting plate up and down. A second lead screw is rotatably arranged at the bottom end of the supporting plate below the conveying groove. A second bidirectional motor for driving the second lead screw to rotate is fixedly arranged at the end part of the supporting plate.

[0021] A conveying plate is arranged at the top end of the supporting plate along its width direction. The bottom end of the conveying plate is sleeved on the second lead screw and is threadedly connected with the second lead screw. A limiting groove adapted to the conveying plate is horizontally opened at the bottom end of the tray.

[0022] A conveying plate is arranged at the top end of the supporting plate along its width direction. The bottom end of the conveying plate is sleeved on the second lead screw and is threadedly connected with the second lead screw. A limiting groove adapted to the conveying plate is horizontally opened at the bottom end of the tray.

[0023] A first position sensor is fixedly arranged at the side part of the conveying plate. A first position receiver corresponding to the position of the pushing frame is fixedly arranged on the first stop bar, and each first position receiver is adapted to the first position sensor.

[0024] A second baffle for blocking the movement of the tray is fixedly arranged at the front top end of the pallet. The second baffle corresponds to the position of the conveying groove, and a second position sensor is fixedly arranged on the second baffle.

[0025] In the above intelligent shelf system based on Internet of Things technology, the conveying module includes a moving unit. The moving unit includes a moving groove vertically opened on the pallet between the first baffle and the conveying groove. The conveying groove is perpendicular to the moving groove and the moving groove runs through the pallet up and down.

[0026] A third lead screw located below the moving groove is rotatably arranged at the bottom end of the pallet, and a third bidirectional motor for driving the rotation of the third lead screw is fixedly arranged at the end of the pallet.

[0027] A moving plate is arranged at the top end of the pallet along its length direction. The bottom end of the moving plate is sleeved on the third lead screw and is threadedly connected with the third lead screw.

[0028] A third magnet adapted to the first magnet is fixedly arranged at one end of the moving plate facing the tray. A displacement plate is horizontally arranged in the middle of the end of the moving plate facing the tray, and a second electric push rod for driving the displacement plate to move is horizontally and fixedly arranged in the middle of the moving plate along the width direction of the pallet.

[0029] A guide rail is horizontally and fixedly arranged at the top end of the pallet behind the second stop bar along the width direction of the pallet. A guide groove adapted to the guide rail is horizontally opened in the vertical direction along the width direction of the pallet at the bottom end of the tray.

[0030] In the above intelligent shelf system based on Internet of Things technology, the conveying module includes a transfer unit. The transfer unit includes a conveyor belt rotatably arranged along the length direction of the front side of the pallet. The conveyor belt is located at the end of the guide rail, and a fourth bidirectional motor for driving the rotation of the conveyor belt is fixedly arranged at the side of the pallet.

[0031] A third stop bar is fixedly arranged at the top end of the pallet on the side of the conveyor belt, and a plurality of pulleys are vertically and rotatably arranged on the third stop bar.

[0032] A fourth lead screw is horizontally rotatably arranged at the top end of the tail of the conveyor belt along the width direction of the pallet. A fifth bidirectional motor for driving the rotation of the fourth lead screw is fixedly arranged at the side of the pallet. A transfer plate sleeved on the fourth lead screw and threadedly connected with the fourth lead screw is horizontally slidably arranged at the top end of the third stop bar along the length direction of the pallet.

[0033] In the above intelligent shelf system based on Internet of Things technology, the detection unit includes an induction area fixedly arranged on the pallet at the opening of the pushing frame. A plurality of detection heads adapted to the corresponding induction areas are arranged at the top end of the third stop bar.

[0034] In the above intelligent shelf system based on Internet of Things technology, the lifting unit includes a storage board horizontally arranged on the outer side of the cabinet body on the front side of the conveyor belt. A guide rod and a fifth lead screw vertically penetrating the side part of the storage board are arranged on the front side of the cabinet body, and a sixth bidirectional motor for driving the fifth lead screw to rotate is fixedly arranged at the front end of the top plate.

[0035] A third position sensor is fixedly arranged on the side part of the storage board, and a second position receiver adapted to the third position sensor is fixedly arranged at the front end of each pallet.

[0036] A third electric push rod is horizontally and fixedly arranged along the length direction of the pallet at the front side of the top end of the pallet. The telescopic end of the third electric push rod faces the conveyor belt direction, and a return plate is horizontally and fixedly arranged at its end.

[0037] Compared with the prior art, the intelligent shelf system based on Internet of Things technology of the present invention has at least the following beneficial effects:

[0038] 1. In the intelligent shelf system based on Internet of Things technology of the present invention, a closed space is formed by the arranged cabinet body to protect the stored items from environmental factors such as dust, moisture and other possible contaminations. The multi-layer pallet design allows multiple trays to be placed on each pallet, making full use of the space and increasing the storage density. The trays can move horizontally on the pallets and are precisely controlled by the conveying module, making the access of goods more efficient, reducing manual intervention. At the same time, data can be uploaded to the cloud database, and detailed inventory reports and prediction models are generated using big data analysis technology to optimize the inventory management strategy.

[0039] 2. In the intelligent shelf system based on Internet of Things technology of the present invention, a pressure sensor and an isolation gasket are arranged inside each tray, which can monitor the weight of the goods in the tray in real time to ensure the accurate tracking of the goods status. A detection unit including an induction area and a detection head is arranged on the pallet for real-time monitoring of the position and status of the tray to prevent misoperation or loss, and it is convenient to operate through the control panel when accessing goods.

[0040] 3. In the intelligent shelf system based on Internet of Things technology of the present invention, the pushing unit and the conveying unit realize the automatic pushing and conveying of the trays through components such as lead screws, motors and electric push rods, reducing the need for manual handling and improving work efficiency. A lifting unit is arranged outside the cabinet body, which can automatically adjust the height position of the tray according to requirements, facilitating the access and handling of goods.

[0041] 4. In the intelligent shelf system based on Internet of Things technology of the present invention, a control panel is arranged on the side of the cabinet body, and remote monitoring and management can be realized through Internet connection, improving the intelligent level of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is the overall structural schematic diagram of the present invention;

[0043] Figure 2 is the internal structural schematic diagram of the present invention;

[0044] Figure 3 is the structural schematic diagram of the lifting unit of the present invention;

[0045] Figure 4 is the structural schematic diagram of the transfer unit of the present invention;

[0046] Figure 5 is the structural schematic diagram of the moving unit of the present invention;

[0047] Figure 6 is the structural schematic diagram of the tray of the present invention;

[0048] Figure 7 is the structural schematic diagram of the conveying module of the present invention;

[0049] Figure 8 is the schematic diagram of the position of the first lead screw of the present invention.

[0050] In the figure: 1, cabinet body; 101, side plate; 102, top plate; 103, column;

[0051] 2, supporting plate; 3, tray;

[0052] 4, conveying module; 41, pushing unit; 411, pushing groove; 412, pushing frame; 413, first lead screw; 414, first bidirectional motor; 415, first electric push rod; 416, first stop bar; 417, first magnet; 418, second magnet;

[0053] 42, conveying unit; 421, conveying groove; 422, second lead screw; 423, second bidirectional motor; 424, conveying plate; 425, limiting groove; 426, first position sensor; 427, first position receiver; 428, second baffle; 429, second position sensor;

[0054] 43, moving unit; 431, moving groove; 432, third lead screw; 433, third bidirectional motor; 434, moving plate; 435, third magnet; 436, displacement plate; 437, second electric push rod; 438, guide rail; 439, guiding groove;

[0055] 44, transfer unit; 441, conveyor belt; 442, fourth bidirectional motor; 443, third stop bar; 444, pulley; 445, fourth lead screw; 446, fifth bidirectional motor; 447, transfer plate;

[0056] 5, detection unit; 51, induction area; 52, detection head;

[0057] 6. Lifting unit; 61. Placing board; 62. Guide rod; 63. Fifth lead screw; 64. Sixth bidirectional motor; 65. Third position sensor; 66. Second position receiver; 67. Third electric push rod; 68. Return plate;

[0058] 7. Control panel; 8. Pressure sensor; 9. Isolation gasket. Specific implementation manner

[0059] The intelligent shelf system based on the Internet of Things technology of the present invention will be described in more detail below in conjunction with the accompanying drawings and through specific implementation manners.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0061] See Figures 1-8 , an intelligent shelf system based on the Internet of Things technology in this embodiment can make full use of space, improve the storage density, and perform full-automatic and precise control during the access of goods, making the access of goods more efficient, reducing manual intervention. At the same time, it can upload data to the cloud database, generate detailed inventory reports and prediction models by using big data analysis technology, optimize the inventory management strategy, and can also monitor the position and status of the tray 3 in real time, facilitating the operation of goods, and can achieve remote monitoring and management through Internet connection, improving the intelligent level of the system.

[0062] In this embodiment, it mainly includes a cabinet body 1, which is made of transparent material. The cabinet body 1 includes side plates 101 and a top plate 102. There are three side plates 101 which are fixedly connected to form a rectangular structure. The cabinet body 1 formed by the side plates 101 and the top plate 102 forms a closed space to protect the stored items from environmental factors such as dust, moisture and other possible contaminations. At the four corners inside the cabinet body 1, there are vertically and fixedly arranged columns 103 for support. Horizontally arranged along the up and down direction inside the cabinet body 1 are a plurality of trays 2. Along the length direction of the top end of the tray 2, there are multiple groups of movable pallets 3 horizontally arranged. This makes full use of the space and improves the storage density. The pallet 3 is a rectangular box body with an open top. Inside the pallet 3, there is horizontally and fixedly arranged a pressure sensor 8. At the top end of the pressure sensor 8, there is an isolation gasket 9. Goods are placed on the isolation gasket 9. Through the pressure sensor 8 and the isolation gasket 9, the weight of the goods inside the pallet 3 can be monitored in real time to ensure the precise tracking of the goods status. Fixedly arranged on the side part of the cabinet body 1 is a control panel 7. Through the control panel 7, the electrical components inside the cabinet body 1 are controlled, and the process and time of the control are transmitted to the data cloud, so as to generate a detailed inventory report and a prediction model by using big data analysis technology, optimize the inventory management strategy, and be able to monitor the position and status of the pallet 3 in real time.

[0063] To achieve the automatic movement of goods, refer to Figures 3-8 , in this embodiment, on the tray 2, there is fixedly arranged a transmission module 4 for driving the pallet 3 to move. The transmission module 4 includes a pushing unit 41. The pushing unit 41 includes pushing grooves 411 vertically opened along the width direction on the tray 2 on both sides of the pallet 3. The pushing grooves 411 penetrate through the tray 2 up and down. Horizontally arranged at the top end of the tray 2 are a plurality of pushing frames 412. The pushing frames 412 are U-shaped structures and their opening parts are located on both sides of the corresponding pallet 3. Both ends of the pushing frames 412 slide in the corresponding pushing grooves 411. Horizontally rotatably arranged along the width direction at the bottom end of the tray 2 is a first lead screw 413. The first lead screw 413 penetrates through the bottom end of the corresponding pushing frame 412 and is threadedly connected to the pushing frame 412. Fixedly arranged on the side part of the tray 2 is a first bidirectional motor 414 for driving the first lead screw 413 to rotate. Fixedly arranged at both ends of the pushing frame 412 are first electric push rods 415. The telescopic parts of the first electric push rods 415 are arranged oppositely. Along the length direction of the tray 2, fixedly arranged at the top end of the tray 2 on the opposite side of the first bidirectional motor 414 is a first stop bar 416. Fixedly arranged on the first stop bar 416 are first magnets 417 corresponding to the positions of the pallets 3. Fixedly arranged on the side part of the pallet 3 facing the first stop bar 416 are second magnets 418 which can be adapted to the first magnets 417.

[0064] Control the operation of the first electric push rod 415 through the control panel 7. At this time, the two first electric push rods 415 squeeze the tray 3, thereby limiting the tray 3. Then, control the first bidirectional motor 414 through the control panel 7 to drive the first lead screw 413 to rotate, so that the pushing frame 412 drives the tray 3 to move along the first lead screw 413 on the pushing groove 411 until the first magnet 417 abuts against the second magnet 418. Then control the first electric push rod 415 to contract to release the limit on the tray 3, and then control the first bidirectional motor 414 to reverse to return the pushing frame 412 to its original position. When it is necessary to return the tray 3 to its initial position, control the pushing frame 412 to move to the position of the tray 3 on the pushing groove 411, then control the first electric push rod 415 to operate to limit the tray 3, and then drive the tray 3 to return to its original position through the pushing frame 412 to realize the picking and placing of goods.

[0065] The conveying module 4 includes a conveying unit 42. The conveying unit 42 includes a conveying groove 421 formed along the length direction of the pallet 2 on the side of the first retaining strip on the pallet 2. The conveying groove 421 penetrates through the pallet 2 up and down. A second lead screw 422 is rotatably arranged at the bottom end of the pallet 2 below the conveying groove 421, and a second bidirectional motor 423 for driving the second lead screw 422 to rotate is fixedly arranged at the end of the pallet 2. A conveying plate 424 is arranged at the top end of the pallet 2 along its width direction. The bottom end of the conveying plate 424 is sleeved on the second lead screw 422 and is threadedly connected to the second lead screw 422. A limiting groove 425 adapted to the conveying plate 424 is horizontally formed at the bottom end of the tray 3. A first position sensor 426 is fixedly arranged on the side of the conveying plate 424, and a first position receiver 427 corresponding to the position of the pushing frame 412 is fixedly arranged on the first retaining strip 416. Each first position receiver 427 is adapted to the first position sensor 426. The position receiver and the position sensor are both mature existing technologies and will not be described in detail here. A conveying plate 424 is arranged at the top end of the pallet 2 along its width direction. The bottom end of the conveying plate 424 is sleeved on the second lead screw 422 and is threadedly connected to the second lead screw 422. A limiting groove 425 adapted to the conveying plate 424 is horizontally formed at the bottom end of the tray 3. A second baffle 428 for blocking the movement of the tray 3 is fixedly arranged at the front top end of the pallet 2. The second baffle 428 corresponds to the position of the conveying groove 421, and a second position sensor 429 is fixedly arranged on the second baffle 428.

[0066] Before the tray 3 moves on the pushing groove 411, the control panel 7 is used to control the operation of the second bidirectional motor 423 to drive the rotation of the second lead screw 422, so that the transfer plate 424 moves along the limiting groove 425 through the second lead screw 422. During this process, when the first position sensor 426 detects that the transfer plate 424 moves to the position of the predetermined first position receiver 427, the movement of the transfer plate 424 is controlled to stop. During the movement of the tray 3 on the pushing groove 411, the limiting groove 425 moves above the transfer plate 424. When the corresponding first magnet 417 and the second magnet 418 are in contact, the movement of the transfer plate 424 is controlled until the second position sensor 429 detects that the tray 3 abuts against the first baffle.

[0067] The transfer module 4 includes a moving unit 43. The moving unit 43 includes a moving groove 431 vertically formed on the tray 2 between the first baffle and the transfer groove 421. The transfer groove 421 is perpendicular to the moving groove 431 and the moving groove 431 penetrates the tray 2 up and down. A third lead screw 432 is rotatably provided at the bottom end of the tray 2 and is located below the moving groove 431. A third bidirectional motor 433 for driving the rotation of the third lead screw 432 is fixedly provided at the end of the tray 2. A moving plate 434 is arranged at the top end of the tray 2 along its length direction. The bottom end of the moving plate 434 is sleeved on the third lead screw 432 and is threadedly connected to the third lead screw 432. A third magnet 435 adapted to the first magnet 417 is fixedly provided at one end of the moving plate 434 facing the tray 3. A displacement plate 436 is horizontally arranged in the middle of one end of the moving plate 434 facing the tray 3. A second electric push rod 437 for driving the displacement plate 436 to move is horizontally and fixedly arranged in the middle of the moving plate 434 along the width direction of the tray 2. A guide rail 438 is horizontally and fixedly arranged at the top end of the tray 2 behind the second stop bar along the width direction of the tray 2. A guide groove 439 adapted to the guide rail 438 is horizontally formed in the vertical direction along the width direction of the tray 2 at the bottom end of the tray 3.

[0068] After the tray 3 abuts against the first baffle, at this time, the second magnet 418 and the third magnet 435 are in contact. The control panel 7 is used to control the operation of the third bidirectional motor 433 to drive the rotation of the third lead screw 432, so that the moving plate 434 pushes the tray 3 to move along the moving groove 431. When it moves to the end, the control panel 7 is used to control the operation of the second electric push rod 437, and the tray 3 is continuously pushed by the displacement plate 436. During this process, guiding is carried out through the guide rail 438 and the guide groove 439. Then the second electric push rod 437 is controlled to contract.

[0069] The transfer module 4 includes a transfer unit 44. The transfer unit 44 includes a conveyor belt 441 rotatably arranged along the length direction of the front side of the pallet 2. The conveyor belt 441 is located at the end of the guide rail 438. A fourth bidirectional motor 442 for driving the rotation of the conveyor belt 441 is fixedly arranged on the side of the pallet 2. At the top of the pallet 2 on the side of the conveyor belt 441, a third stop bar 443 is fixedly arranged. A plurality of pulleys 444 are vertically rotatably arranged on the third stop bar 443. The frictional resistance is reduced by the pulleys 444. At the top end of the tail of the conveyor belt 441, a fourth lead screw 445 is horizontally rotatably arranged along the width direction of the pallet 2. A fifth bidirectional motor 446 for driving the rotation of the fourth lead screw 445 is fixedly arranged on the side of the pallet 2. A transfer plate 447 sleeved on the fourth lead screw 445 and threadedly connected to the fourth lead screw 445 is horizontally slidably arranged along the length direction of the pallet 2 at the top end of the third stop bar 443.

[0070] The displacement plate 436 pushes the tray 3 onto the conveyor belt 441 and abuts the tray 3 against the pulleys 444. Then, the fourth bidirectional motor 442 is controlled to work through the control panel 7, so as to drive the conveyor belt 441 to work and move the tray 3 to the outside of the pallet 2.

[0071] When it is necessary to return the tray 3, the fourth bidirectional motor 442 is controlled to reverse through the control panel 7, and the tray 3 is moved backward through the conveyor belt 441 until it moves to the farthest position. At this time, the fifth bidirectional motor 446 is controlled to work, driving the fourth lead screw 445 to rotate, so as to move the tray 3 towards the third bidirectional motor 433 through the transfer plate 424. During this process, guiding is carried out through the guide rail 438 and the guide groove 439 until the second magnet 418 abuts against the third magnet 435, and the third motor is controlled to reverse, so as to drive the tray 3 to abut against the first stop bar 416 through magnetic force. During this process, the limit groove 425 moves above the transfer plate 424. And the second bidirectional motor 423 is controlled to reverse, so as to drive the tray 3 to return through the transfer plate 424 and the limit groove 425.

[0072] In order to detect the state of the shelf, in this embodiment, refer to Figure 2 and Figure 7 , a detection unit 5 for detecting the position of the tray 3 is arranged on the pallet 2. The detection unit 5 includes an induction area 51 fixedly arranged on the pallet 2 at the opening of the pushing frame 412. A plurality of detection heads 52 adapted to the corresponding induction areas 51 are arranged at the top end of the third stop bar. The detection heads 52 can adopt infrared detectors. When the tray 3 moves on the pallet 2, the detection heads 52 detect the existence of the induction area 51, and thus feed back signals to the control panel 7, facilitating operation through the control panel 7. At the same time, in cooperation with each motor and electric push rod, the position and state of the tray 3 are monitored in real time to prevent misoperation or loss.

[0073] To achieve the picking and placing of goods, specifically refer to Figures 1-3 A lifting unit 6 for driving the tray 3 to lift is fixedly arranged on the side of the cabinet body 1. The lifting unit 6 includes a placement plate 61 horizontally arranged outside the cabinet body 1 on the front side of the conveyor belt 441. A guide rod 62 and a fifth lead screw 63 vertically penetrating the side of the placement plate 61 are arranged on the front side of the cabinet body 1. A sixth bidirectional motor 64 for driving the fifth lead screw 63 to rotate is fixedly arranged at the front end of the top plate 102. A third position sensor 65 is fixedly arranged on the side of the placement plate 61. A second position receiver 66 adapted to the third position sensor 65 is fixedly arranged at the front end of each pallet 2. A third electric push rod 67 is horizontally fixedly arranged along the length direction of the pallet 2 at the front side of the top end of the pallet 2. The telescopic end of the third electric push rod 67 faces the conveyor belt 441 direction, and a return plate 68 is horizontally fixedly arranged at its end.

[0074] The sixth bidirectional motor 64 is controlled to work through the control panel 7 to drive the fifth lead screw 63 to work, thereby driving the placement plate 61 to lift. The placement plate 61 is moved to the corresponding position through the cooperation of the second position receiver 66 and the third position sensor 65, so as to receive the tray 3 pushed out from the conveyor belt 441. Then, the placement plate 61 is controlled to lift to a suitable height to facilitate the picking and placing of goods thereon. When the tray 3 needs to be returned, the placement plate 61 is controlled to return to the corresponding height, and then the third electric push rod 67 is controlled to work through the control panel 7, so as to push the tray 3 back onto the conveyor belt 441 through the return plate 68. The above steps can be operated in a one-key full-automatic manner through the control panel 7, and only the tray 3 to be moved needs to be determined, without the need to click back and forth.

[0075] The usage method of the intelligent shelf system based on the Internet of Things technology of the present invention: First, a closed space is formed by the cabinet body 1 formed by the side plate 101 and the top plate 102 to protect the stored items from environmental factors such as dust, moisture, and other possible contaminations.

[0076] The second bidirectional motor 423 is controlled by the control panel 7 to operate, driving the second lead screw 422 to rotate, so that the transfer plate 424 moves along the limit slot 425 through the second lead screw 422. During this process, when the transfer plate 424 is detected by the first position sensor 426 to move to the position of the predetermined first position receiver 427, the movement of the transfer plate 424 is controlled to stop. The first electric push rod 415 is controlled by the control panel 7 to operate. At this time, the two first electric push rods 415 squeeze the tray 3, thereby limiting the tray 3. Then the first bidirectional motor 414 is controlled by the control panel 7 to drive the first lead screw 413 to rotate, so that the pushing frame 412 drives the tray 3 to move along the first lead screw 413 on the pushing slot 411 until the first magnet 417 abuts against the second magnet 418. After that, the first electric push rod 415 is controlled to contract to release the limit on the tray 3, and then the first bidirectional motor 414 is controlled to reverse to return the pushing frame 412 to its original position. During the movement of the tray 3 on the pushing slot 411, the limit slot 425 moves above the transfer plate 424. When the corresponding first magnet 417 and second magnet 418 abut, the transfer plate 424 is controlled to move until the second position sensor 429 detects that the tray 3 abuts against the first baffle.

[0077] After the tray 3 abuts against the first baffle, at this time, the second magnet 418 abuts against the third magnet 435. The third bidirectional motor 433 is controlled by the control panel 7 to operate, driving the third lead screw 432 to rotate, so that the moving plate 434 pushes the tray 3 to move along the moving slot 431. When it moves to the end, the second electric push rod 437 is controlled by the control panel 7 to operate, and the tray 3 is continuously pushed to move through the displacement plate 436. During this process, guiding is carried out through the guide rail 438 and the guide slot 439. Then the second electric push rod 437 is controlled to contract. The displacement plate 436 pushes the tray 3 onto the conveyor belt 441 and abuts the tray 3 against the pulley 444. Then the fourth bidirectional motor 442 is controlled by the control panel 7 to operate, thereby driving the conveyor belt 441 to operate to move the tray 3 to the outside of the pallet 2. The sixth bidirectional motor 64 is controlled by the control panel 7 to operate, driving the fifth lead screw 63 to operate, so as to drive the storage plate 61 to lift and lower. The storage plate 61 is moved to the corresponding position through the cooperation of the second position receiver 66 and the third position sensor 65, so as to receive the tray 3 pushed out from the conveyor belt 441. Then the storage plate 61 is controlled to lift and lower to a suitable height to facilitate the picking and placing of goods on it.

[0078] When it is necessary to return the tray 3 to its original position, the control board 61 is controlled to return to the corresponding height, and then the third electric push rod 67 is controlled to work through the control panel 7, so that the tray 3 is pushed back onto the conveyor belt 441 through the return board 68. The fourth bidirectional motor 442 is controlled to reverse through the control panel 7, and the tray 3 is moved backward through the conveyor belt 441 until it reaches the farthest position. At this time, the fifth bidirectional motor 446 is controlled to work, driving the fourth lead screw 445 to rotate, so that the tray 3 is moved in the direction of the third bidirectional motor 433 through the transfer board 424. During this process, it is guided through the guide rail 438 and the guide groove 439 until the second magnet 418 abuts against the third magnet 435, and the third motor is controlled to reverse, so that the tray 3 is driven by magnetic force to abut against the first stop strip 416. During this process, the limit groove 425 moves above the transfer board 424. And by controlling the second bidirectional motor 423 to reverse, the tray 3 is driven to return to its original position through the transfer board 424 and the limit groove 425. The pushing frame 412 is controlled to move to the position of the tray 3 on the pushing groove 411, and then the first electric push rod 415 is controlled to work to limit the tray 3, and then the tray 3 is driven to return to its original position through the pushing frame 412, realizing the picking and placing of goods.

[0079] When the tray 3 moves on the pallet 2, the detection head 52 detects the existence of the induction area 51, and thus feeds back a signal to the control panel 7 for easy operation through the control panel 7. At the same time, it cooperates with each motor and electric push rod to monitor the position and state of the tray 3 in real time, preventing misoperation or loss.

[0080] During this process, the goods are placed on the isolation gasket 9, and the weight of the goods in the tray 3 can be monitored in real time through the pressure sensor 8 and the isolation gasket 9 to ensure the accurate tracking of the goods state. The electrical components inside the cabinet 1 are controlled through the control panel 7, and the control process, time, etc. are transmitted to the data cloud, so as to generate a detailed inventory report and prediction model by using big data analysis technology, optimize the inventory management strategy, and can monitor the position and state of the tray 3 in real time.

[0081] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meaning understood by those of ordinary skill in the art to which this invention belongs. As used in the specification and claims of this application, words such as "a" or "an" do not necessarily indicate a limitation in quantity. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0082] The exemplary embodiments of the present invention have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present invention, various modifications and variations can be made to the above specific embodiments, and various combinations of the technical features and structures proposed by the present invention can be made without exceeding the protection scope of the present invention.

Claims

1. An intelligent shelf system based on Internet of Things technology, characterized by: The invention comprises a cabinet (1), wherein a plurality of pallets (2) are horizontally arranged inside the cabinet (1) along the vertical direction, a plurality of groups of movable trays (3) are horizontally arranged at the top of the pallet (2) along its length direction, a conveying module (4) for driving the tray (3) to move is fixedly arranged on the pallet (2), a detection unit (5) for detecting the position of the tray (3) is arranged on the pallet (2), a lifting unit (6) for driving the tray (3) to rise and fall is fixedly arranged on the side of the cabinet (1), and a control panel (7) is fixedly arranged on the side of the cabinet (1).

2. According to claim 1, the smart shelf system based on Internet of Things technology is characterized by: The cabinet (1) is made of a transparent material, and comprises a side panel (101) and a top panel (102). The side panels (101) are provided with three and are fixedly connected to form a rectangular structure. Vertical columns (103) are fixedly provided at the four inner corners of the cabinet (1).

3. According to claim 1, the smart shelf system based on Internet of Things technology is characterized by: The tray (3) is a rectangular box body with an open top. A pressure sensor (8) is fixedly arranged horizontally inside the tray (3), and an isolation gasket (9) is arranged at the top of the pressure sensor (8).

4. The smart shelf system based on Internet of Things technology according to claim 3 is characterized in that: The conveying module (4) comprises a pushing unit (41), the pushing unit (41) comprising pushing grooves (411) vertically opened along the width direction of the supporting plates (2) on both sides of the tray (3), and the pushing grooves (411) penetrate the supporting plates (2) from top to bottom; A plurality of pushing racks (412) are horizontally arranged at the top end of the support plate (2), the pushing racks (412) are U-shaped structures and their openings are located on both sides of the corresponding tray (3), both ends of the pushing racks (412) slide in the corresponding pushing grooves (411), the bottom end of the support plate (2) is horizontally rotated along its width direction with a first lead screw (413), the first lead screw (413) passes through the bottom end of the corresponding pushing rack (412) and is threadedly connected to the pushing rack (412), and a first bidirectional motor (414) for driving the first lead screw (413) to rotate is fixedly arranged on the side of the support plate (2); First electric push rods (415) are fixedly arranged at both ends of the pushing frame (412), and the telescopic parts of the first electric push rods (415) are arranged opposite to each other; A first baffle (416) is fixedly arranged at the top end of the support plate (2) on the opposite side of the first bidirectional motor (414) along the length direction of the support plate (2); a first magnet (417) corresponding to the position of the tray (3) is fixedly arranged on the first baffle (416); and a second magnet (418) compatible with the first magnet (417) is fixedly arranged on the side of the tray (3) facing the first baffle (416).

5. The smart shelf system based on Internet of Things technology according to claim 4 is characterized in that: The conveying module (4) comprises a conveying unit (42), wherein the conveying unit (42) comprises a conveying groove (421) provided on a support plate (2) at the side of the first gear bar along the length direction of the support plate (2), wherein the conveying groove (421) passes through the support plate (2) from top to bottom, a second lead screw (422) located below the conveying groove (421) is rotatably provided at the bottom end of the support plate (2), and a second bidirectional motor (423) for driving the second lead screw (422) to rotate is fixedly provided at the end of the support plate (2); A conveying plate (424) is provided at the top end of the support plate (2) along its width direction, the bottom end of the conveying plate (424) is sleeved on the second lead screw (422) and is threadedly connected to the second lead screw (422), and a limiting groove (425) adapted to the conveying plate (424) is horizontally opened at the bottom end of the tray (3); A first position sensor (426) is fixedly arranged on the side of the transmission plate (424), a first position receiver (427) corresponding to the position of the pushing rack (412) is fixedly arranged on the first blocking bar (416), and each of the first position receivers (427) is adapted to the first position sensor (426); A second baffle (428) is fixedly provided at the front top end of the support plate (2) for blocking the movement of the tray (3); the second baffle (428) corresponds to the position of the conveying slot (421); and a second position sensor (429) is fixedly provided on the second baffle (428).

6. The smart shelf system based on Internet of Things technology according to claim 5 is characterized in that: The conveying module (4) comprises a moving unit (43), the moving unit (43) comprising a moving groove (431) vertically opened on the support plate (2) between the first baffle plate and the conveying groove (421), the conveying groove (421) and the moving groove (431) are vertically arranged, and the moving groove (431) passes through the support plate (2) from top to bottom; A third lead screw (432) located below the movable groove (431) is rotatably provided at the bottom end of the support plate (2), and a third bidirectional motor (433) for driving the third lead screw (432) to rotate is fixedly provided at the end of the support plate (2); A movable plate (434) is provided at the top end of the support plate (2) along its length direction, and the bottom end of the movable plate (434) is sleeved on the third lead screw (432) and is threadedly connected to the third lead screw (432); A third magnet (435) adapted to the first magnet (417) is fixedly arranged at one end of the movable plate (434) facing the tray (3), a displacement plate (436) is horizontally arranged at the middle of one end of the movable plate (434) facing the tray (3), and a second electric push rod (437) for driving the displacement plate (436) to move is fixedly arranged horizontally at the middle of the movable plate (434) along the width direction of the support plate (2); A guide rail (438) is fixedly arranged horizontally on the top of the support plate (2) at the rear side of the second baffle plate along the width direction of the support plate (2), and a guide groove (439) adapted to the guide rail (438) is vertically opened horizontally along the width direction of the support plate (2) at the bottom end of the tray (3).

7. The smart shelf system based on Internet of Things technology according to claim 6 is characterized in that: The conveying module (4) comprises a transfer unit (44), the transfer unit (44) comprises a conveyor belt (441) rotatably arranged on the front side of the pallet (2) along the length direction of the pallet (2), the conveyor belt (441) is located at the end of the guide rail (438), and a fourth bidirectional motor (442) for driving the conveyor belt (441) to rotate is fixedly arranged on the side of the pallet (2); A third stop bar (443) is fixedly provided at the top end of the support plate (2) on the side of the conveyor belt (441), and a plurality of pulleys (444) are vertically rotatably provided on the third stop bar (443); A fourth lead screw (445) is provided at the top end of the tail of the conveyor belt (441) so as to rotate horizontally along the width direction of the support plate (2); a fifth bidirectional motor (446) is fixedly provided on the side of the support plate (2) for driving the fourth lead screw (445) to rotate; a transfer plate (447) is provided at the top end of the third baffle bar (443) so as to slide horizontally along the length direction of the support plate (2) and is sleeved on the fourth lead screw (445) and threadedly connected to the fourth lead screw (445).

8. The smart shelf system based on Internet of Things technology according to claim 7 is characterized in that: The detection unit (5) comprises a sensing area (51) fixedly arranged on a support plate (2) at an opening of a pushing frame (412), and a plurality of detection heads (52) adapted to the corresponding sensing areas (51) are arranged at the top end of the third gear bar.

9. The smart shelf system based on Internet of Things technology according to claim 7 is characterized in that: The lifting unit (6) comprises a storage plate (61) horizontally arranged on the outer side of the cabinet (1) in front of the conveyor belt (441); a guide rod (62) and a fifth lead screw (63) vertically penetrating the side of the storage plate (61) are arranged on the front side of the cabinet (1); and a sixth bidirectional motor (64) for driving the fifth lead screw (63) to rotate is fixedly arranged at the front end of the top plate (102); A third position sensor (65) is fixedly provided on the side of the storage plate (61), and a second position receiver (66) adapted to the third position sensor (65) is fixedly provided on the front end of each of the support plates (2); A third electric push rod (67) is fixedly arranged horizontally on the front side of the top end of the support plate (2) along the length direction of the support plate (2); the telescopic end of the third electric push rod (67) faces the direction of the conveyor belt (441) and a return plate (68) is fixedly arranged horizontally on its end.

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