Goods shelf accessory taking identification system

Abstract

The goods shelf accessory taking identification system comprises an open goods shelf, the open goods shelf is provided with a plurality of goods storage bins used for storing fasteners, the goods storage bins correspond to independent storage areas and are exposed in open space, and the open ends of the goods storage bins are provided with limiting bosses; the recognition module is used for recognizing whether the user grabs the fasteners in the warehouse or not; the stock calculation systems are assembled in the stock warehouses in a one-to-one correspondence mode, the stock calculation systems and the stock warehouses are detachably assembled, and the stock calculation systems are integrated with gravity sensing units, data processing units and wireless transmission units; according to the goods shelf accessory taking identification system, accurate statistics and data real-time synchronization of fastener inventory can be achieved, and the material management efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of parts management system technology, and in particular to a shelf parts picking and identification system. Background Technology

[0002] In industrial production, equipment maintenance, and assembly workshops, fasteners such as bolts, nuts, and screws are commonly used basic components and are typically stored using open shelving combined with multi-compartment storage units for quick access by workers. However, traditional open shelving fastener management lacks effective monitoring during the material retrieval process and cannot obtain real-time information on the remaining material levels in the storage units. Often, insufficient inventory is only discovered when materials are depleted or production runs out, leading to production stoppages due to material shortages and impacting overall production efficiency. Summary of the Invention

[0003] Therefore, the purpose of this invention is to provide an efficient shelf accessory picking and identification system.

[0004] The present invention adopts the following technical solution:

[0005] A shelf accessory retrieval and identification system includes an open shelf with several storage compartments for fasteners. Each storage compartment corresponds to an independent storage area and is exposed to open space. Each storage compartment has a limiting boss at its opening. An identification module is used to identify whether a user is picking up fasteners within a storage compartment. An inventory calculation system is installed in each of the storage compartments and is detachably mounted to them. The inventory calculation system integrates a gravity sensing unit, a data processing unit, and a wireless transmission unit. The inventory calculation system senses the grabbing action of a worker in the corresponding storage compartment and uses the gravity sensing unit to detect the change in gravity within the storage compartment before and after the grabbing action. Combining this with the standard weight of a single fastener and a weight error compensation value, the data processing unit calculates the quantity of remaining fasteners in the corresponding storage compartment. The wireless transmission unit synchronizes the remaining quantity data in real time.

[0006] Furthermore, the identification module is installed in the open space of the open shelf and is used to identify the fastener grasping behavior of the staff at each of the storage warehouse locations and the corresponding location information of the storage warehouse. The identification module is detachably connected to the open shelf and has an action recognition threshold determination unit inside it to distinguish between valid grasping actions and invalid touching actions. The invalid touching actions include the behavior of briefly swiping the hand across the opening of the storage warehouse and unintentionally touching the fastener but not grasping it.

[0007] Furthermore, the open shelving also includes beams, uprights, and a base. The base is equipped with lockable casters. Bolts connect the beams and uprights, allowing for detachable connection. The identification module includes a visual recognition unit and an RFID identification unit. The visual recognition unit comprises multiple cameras installed at the bottom of the beams and / or the inner side of the uprights on each layer of the open shelving. The camera lenses face the corresponding storage area, and the lenses are protected by anti-fog and dustproof covers to capture images of workers' hand movements. The visual recognition unit also includes a built-in image preprocessing module. An RFID identification unit is located at the edge of the warehouse opening. The RFID identification unit is equipped with a high-frequency RFID reader / writer, which is used to read RFID tags on staff badges or operating tools to assist in identity recognition and correlation with work trajectories. The inventory calculation system also includes an infrared sensing unit installed on the warehouse to detect whether a staff member's hand is inserted into the warehouse area. The infrared sensing unit is signal-connected to the visual recognition unit and the gravity sensing unit. When the infrared sensing unit detects a hand inserted, it simultaneously triggers the visual recognition unit to focus and take a picture, and the gravity sensing unit to enter real-time detection mode.

[0008] Furthermore, each of the storage compartments is equipped with an adjustable partition, which is slidably connected along the length of the storage compartment. The bottom of the partition is equipped with an elastic locking buckle, which is used to divide a single storage compartment into multiple sub-areas and is compatible with small fasteners of different sizes. The bottom of the storage compartment is equipped with an anti-slip cushioning pad, and the surface of the anti-slip cushioning pad is provided with anti-slip texture. The side wall of the storage compartment is equipped with a transparent observation window, and the opening of the storage compartment is equipped with a removable dust cover.

[0009] Furthermore, the recognition module comprises several cameras installed on the open shelf, with at least two cameras installed on each layer of the open shelf, respectively located at both ends of the open shelf; the cameras are used for image acquisition and analysis, processing the acquired hand movement images in real time to identify the hand movements of the staff and the corresponding location of the grasped inventory warehouse; the cameras have built-in storage modules.

[0010] Furthermore, the gravity sensing unit is a pressure sensor installed on the bottom wall of each of the storage compartments, and the pressure sensor is a piezoelectric pressure sensor; the inventory calculation system is equipped with a temperature compensation module, which is used to automatically correct the detection data of the pressure sensor according to changes in ambient temperature; the inner wall side of each of the storage compartments is provided with an anti-slip buffer layer; the opening of the storage compartment is provided with a limiting stop, which is an arc-shaped structure, and is used to prevent workers from accidentally touching the pressure sensor by extending their hands excessively into the storage compartment when grabbing fasteners; the bottom of the pressure sensor is provided with an elastic buffer seat.

[0011] Furthermore, the shelf accessory picking and identification system also includes a material management system, which is signal-connected to the identification module and the inventory calculation system; the material management system is used to receive the remaining fastener quantity data of each of the inventory warehouses transmitted by the inventory calculation system; the material management system is equipped with a data encryption module for encrypting the transmitted inventory data and operation data.

[0012] Furthermore, the material management system includes a data storage unit, a threshold setting unit, an alert unit, a data statistical analysis unit, and a terminal interaction unit. The threshold setting unit is used to set replenishment thresholds for the inventory warehouses of different specifications of fasteners. The replenishment thresholds include an initial threshold, a warning threshold, and an emergency threshold. The alert unit is equipped with at least one of the following methods to issue replenishment alerts: an audible and visual alarm device installed on the top of the open shelf, and the terminal message push synchronously connecting to at least one of a mobile APP, a computer client, and an industrial tablet. The data statistical analysis unit is used to perform real-time statistical analysis on inventory data and operational data.

[0013] Furthermore, the open shelving has a multi-layer structure, with at least one identification module on each layer, and the inventory calculation system on each layer is independently connected to the material management system; each layer of the open shelving has an independent power module; each layer of the open shelving has a status indicator light to display the working status of the identification module and the inventory calculation system on that layer.

[0014] Furthermore, the identification module is also used to identify the identity information of the staff. The identification module is equipped with a face recognition unit and an RFID identification unit. The face recognition unit is integrated into the action recognition threshold determination unit and is used to collect the facial images of the staff for identity comparison. The material management system is also used to record the time, quantity, and specifications of fasteners grabbed by different staff members in each of the storage warehouses, and at the same time record the staff member's identity information, operation time, and operation trajectory to form a complete operation traceability file. The material management system has a built-in permission management unit, which is used to manage the staff's positions and responsibilities and set different operation permissions.

[0015] The beneficial effects of this invention are as follows: The shelf parts picking and identification system involved in this invention can realize accurate statistics and real-time data synchronization of fastener inventory, effectively improving the efficiency of material management. Attached Figure Description

[0016] Figure 1 This is a block diagram of a shelf accessory picking and identification system according to an embodiment of the present invention; Figure 2 for Figure 1 A 3D diagram of a shelf accessory picking and identification system.

[0017] Attached reference numerals: 10, Open shelving; 11, Storage warehouse; 12, Beam; 13, Upright; 14, Base; 15, Casters; 30, Identification module; 40, Material management system. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Please see Figure 1 and Figure 2 This invention discloses an open shelf 10 accessory retrieval and identification system, comprising an open shelf 10 with several storage compartments 11 for storing fasteners. Each storage compartment 11 corresponds to an independent storage area and is exposed to open space. Each storage compartment 11 has a limiting boss at its opening end. An identification module 30 is used to identify whether a user is grabbing fasteners within a storage compartment. An inventory calculation system is detachably assembled into each storage compartment 11. The inventory calculation system integrates a gravity sensing unit, a data processing unit, and a wireless transmission unit. The inventory calculation system senses the grabbing action of a worker corresponding to a fastener within a storage compartment 11, and uses the gravity sensing unit to detect the change in gravity within the storage compartment 11 before and after the grabbing action in real time. Combining the standard weight of a single fastener and a weight error compensation value, the data processing unit calculates the remaining quantity of fasteners within the corresponding storage compartment 11. The wireless transmission unit synchronizes the remaining quantity data in real time. Specifically, the fasteners are screws.

[0022] The working principle of the open shelf 10 accessory picking and identification system of the present invention is as follows: the storage compartments 11 of the open shelf 10 realize the convenient storage and picking of fasteners, and the limiting bosses limit the fasteners; the identification module 30 first identifies the user's grabbing action of fasteners in the storage compartments 11, and the detachable inventory calculation system matched with each storage compartment 11 then starts to work. The gravity sensing unit detects the change in gravity of the fasteners in the compartment before and after grabbing, and the data processing unit calculates the number of remaining fasteners in the compartment by combining the standard weight of a single fastener and the weight error compensation value. Finally, the remaining quantity data is synchronized in real time through the wireless transmission unit. At the same time, the inventory calculation system can accurately complete the data collection and calculation for each storage compartment 11.

[0023] Compared to existing technologies, the open shelving 10 accessory picking and identification system of this invention can achieve accurate statistics and real-time data synchronization of fastener inventory, effectively improving the efficiency of material management; the storage warehouse 11 equipped with limiting bosses enables convenient storage and retrieval of fasteners; relying on the independent detachable inventory calculation system of each warehouse, combined with gravity sensing and weight error compensation, the remaining fastener quantity can be accurately calculated; with the addition of grabbing identification and wireless real-time synchronization functions, dynamic and intelligent monitoring of fastener inventory can be achieved, while making system assembly and maintenance more flexible.

[0024] Please refer to Figure 1 and Figure 2 In embodiment 1, the open shelving 10 further includes a beam 12, an upright 13, and a base 14. The base 14 has lockable casters 15 at its bottom. Bolts are provided between the beam 12 and the upright 13, allowing for detachable connection. The identification module 30 includes a visual identification unit and an RFID identification unit. The visual identification unit consists of multiple cameras, installed at the bottom of the beam 12 and / or the inside of the upright 13 on each layer of the open shelving 10. The camera lenses face the corresponding storage area 11, and the lenses are protected by anti-fog and dustproof covers to capture images of workers' hand movements. The system includes a built-in image preprocessing module; the RFID identification unit is located at the edge of the opening of the storage warehouse 11, and the RFID identification unit is equipped with a high-frequency RFID reader / writer. The high-frequency RFID reader / writer is used to read RFID tags on staff badges or operating tools to assist in identity recognition and correlation with work trajectories; the inventory calculation system also includes an infrared sensing unit installed on the storage warehouse 11, used to detect whether a staff member's hand has entered the storage warehouse 11 area. The infrared sensing unit is signal-connected to the visual recognition unit and the gravity sensing unit. When the infrared sensing unit detects a hand entering, it simultaneously triggers the visual recognition unit to focus and take a picture, and the gravity sensing unit to enter real-time detection mode. Specifically, the infrared sensing unit is a diffuse reflection infrared sensor. The open shelving unit 10 uses lockable casters 15 for flexible movement, and the beams 12 and uprights 13 are detachably connected by bolts to improve disassembly and assembly adaptability. The combination of vision + RFID dual identification modules 30 not only enables accurate capture of hand picking actions and effective association with worker identity and work trajectory, but also ensures stable operation of the vision recognition unit in the working environment by protecting the camera from fog and dust. The signal linkage between the infrared sensing unit, vision sensing unit, and gravity sensing unit can accurately trigger vision focusing and shooting and real-time gravity detection when picking actions are detected, avoiding invalid system operation, and further improving the timeliness of picking identification and the accuracy of inventory weight detection, thus optimizing the efficiency of system collaborative operation.

[0025] Each of the storage compartments 11 is equipped with an adjustable partition, which is slidably connected along the length of the storage compartment 11. The bottom of the partition is equipped with an elastic locking buckle, which is used to divide a single storage compartment 11 into multiple sub-areas and is adapted to small fasteners of different specifications. The bottom of the storage compartment 11 is equipped with an anti-slip cushioning pad, and the surface of the anti-slip cushioning pad is provided with anti-slip texture. The side wall of the storage compartment 11 is equipped with a transparent observation window, and the opening of the storage compartment 11 is equipped with a removable dust cover. The adjustable dividers inside the storage compartment 11, combined with elastic locking buckles, can flexibly divide a single storage compartment 11 into multiple sub-areas, adapting to the storage needs of small fasteners of different sizes, greatly improving the space utilization and size adaptability of the storage compartment 11; the anti-slip cushioning pad at the bottom of the storage compartment 11 can prevent fasteners from sliding and bumping, the transparent observation window on the side wall allows for a direct view of the inventory inside the compartment, and the removable dust cover at the opening can effectively prevent dust from entering and protecting the fasteners, while not affecting storage and retrieval operations, comprehensively improving the usability and protection of the storage compartment 11 for fasteners.

[0026] In Example 2, the identification module 30 consists of several cameras installed on the open shelving unit 10. At least two cameras are installed on each layer of the open shelving unit 10, respectively positioned at both ends of the open shelving unit 10. The cameras are used for image acquisition and analysis, processing the acquired hand gesture images in real time to identify the worker's hand gestures and the corresponding location of the storage compartment 11 being grasped. Each camera has a built-in storage module. The identification module 30, with at least two cameras per layer and positioned at both ends of the open shelving unit 10, enables comprehensive image acquisition of the corresponding storage compartment 11 area. Combined with real-time hand gesture and storage compartment 11 location recognition, it significantly improves the comprehensiveness of material handling action recognition and the accuracy of compartment location. The built-in storage module in the cameras synchronously stores image data of material handling actions and corresponding compartment locations, providing a reliable basis for subsequent operation traceability and data verification. It also integrates acquisition, analysis, and storage functions into the identification module 30, simplifying the overall system structure.

[0027] The gravity sensing unit is a pressure sensor installed on the bottom wall of each of the storage compartments 11. The pressure sensor is a piezoelectric pressure sensor. The inventory calculation system is equipped with a temperature compensation module, which is used to automatically correct the detection data of the pressure sensor according to changes in ambient temperature. The inner wall side of each of the storage compartments 11 is provided with an anti-slip buffer layer. The opening of each storage compartment 11 is provided with a limiting stop, which is an arc-shaped structure. The limiting stop is used to prevent workers from accidentally touching the pressure sensor by extending their hands too far into the storage compartment 11 when grabbing fasteners. The bottom of the pressure sensor is provided with an elastic buffer seat. Using a piezoelectric pressure sensor as the gravity sensing unit, coupled with a temperature compensation module, the detection data can be automatically corrected according to changes in ambient temperature, effectively offsetting the influence of temperature on the sensor and significantly improving the accuracy of fastener gravity detection, providing a reliable data basis for inventory quantity calculation. The inner wall of the storage compartment 11 is equipped with an anti-slip buffer layer to protect the fasteners, and the arc-shaped limiting edge can prevent hands from excessively reaching in and accidentally touching the pressure sensor when picking up materials. The elastic buffer seat at the bottom of the pressure sensor can also buffer external impact. Multiple designs not only ensure the stable operation and service life of the sensor, but also improve the safety of using the storage compartment 11.

[0028] The open shelving 10 parts picking and identification system also includes a material management system 40, which is signal-connected to the identification module 30 and the inventory calculation system. The material management system 40 receives data on the remaining fastener quantities in each of the storage warehouses 11 transmitted by the inventory calculation system. The material management system 40 has a built-in data encryption module for encrypting the transmitted inventory and operational data. The material management system 40, in signal linkage with the identification module 30 and the inventory calculation system, receives data on the remaining fastener quantities in each storage warehouse 11, achieving centralized aggregation and unified management of fastener inventory data for the open shelving 10, significantly improving the convenience and coordination of overall inventory control. The built-in data encryption module in the material management system 40 encrypts the transmitted inventory and operational data, effectively mitigating the risk of leakage during data transmission and storage, and significantly enhancing the overall data security protection capability of the system.

[0029] The material management system 40 includes a data storage unit, a threshold setting unit, an alert unit, a data statistical analysis unit, and a terminal interaction unit. The threshold setting unit is used to set replenishment thresholds for the inventory warehouse 11 for different specifications of fasteners. The replenishment thresholds include an initial threshold, a warning threshold, and an emergency threshold. The alert unit is equipped with at least one of the following methods to issue replenishment alerts: an audible and visual alarm device, a terminal message push, and a terminal message push. The audible and visual alarm device is installed on the top of the open shelf 10. The terminal message push is simultaneously connected to at least one of the following methods: a mobile APP, a computer client, and an industrial tablet. The data statistical analysis unit is used to perform real-time statistical analysis on inventory data and operational data. The threshold setting unit of the material management system 40 can set three levels of replenishment thresholds for the inventory warehouse 11 of fasteners of different specifications. The reminder unit sends replenishment reminders through at least one method, such as the audible and visual alarm on the top of the open shelf 10 and message push from multiple terminals, accurately triggering replenishment warnings of different levels, ensuring the targeted and timely replenishment. The material management system 40 integrates a multi-functional unit, which can realize the storage, real-time statistical analysis and terminal interaction of inventory and operation data, providing scientific data support for the material coordination and operation optimization of fasteners, and further improving the intelligence and refinement of the system's material management.

[0030] The open shelving 10 has a multi-layer structure, with at least one identification module 30 on each layer. The inventory calculation system on each layer is independently signal-connected to the material management system 40. Each layer of the open shelving 10 has an independent power module and a status indicator light to display the working status of the identification module 30 and the inventory calculation system on that layer. The multi-layer open shelving 10, with each layer equipped with an independent identification module 30 and each layer's inventory calculation system independently signal-connected to the material management system 40, and each layer having an independent power module, enables independent operation and data transmission for each layer's systems. This avoids single-layer equipment failures affecting the overall system operation, significantly improving system stability and fault tolerance. The status indicator lights on each layer of the open shelving 10 visually display the working status of the identification module 30 and the inventory calculation system on that layer, facilitating quick troubleshooting and real-time monitoring of system operation on each layer, effectively improving system maintenance efficiency and ease of operation.

[0031] The identification module 30 is also used to identify the identity information of the staff. The identification module 30 is equipped with a face recognition unit and an RFID identification unit. The face recognition unit is integrated into the action recognition threshold determination unit and is used to collect the facial images of the staff for identity comparison. The material management system 40 is also used to record the time, quantity, and specifications of fasteners grabbed by different staff members in each of the storage warehouses 11, and at the same time record the staff member's identity information, operation time, and operation trajectory to form a complete operation traceability file. The material management system 40 has a built-in permission management unit, which is used to manage the staff's positions and responsibilities and set different operation permissions. The identification module 30 integrates facial recognition and RFID identification units to achieve accurate verification of staff identity. The material management system 40 can comprehensively record the fastener grabbing information and all-dimensional data of the operation and form a traceability file, realizing full traceability of the operation process and effectively standardizing the operation process. The permission management unit of the material management system 40 can set operation permissions according to the differences in the staff's positions and responsibilities, realizing refined permission control of fastener access, which not only avoids the risk of unauthorized operation and ensures the security of material and system data, but also adapts to the actual operation needs of different positions.

[0032] The above description merely illustrates preferred technical solutions of the present invention, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and the present invention also intends to include these modifications and variations.

Claims

1. A shelf accessory picking and identification system, characterized in that, The system includes an open shelving unit with several storage compartments for storing fasteners. Each storage compartment corresponds to an independent storage area and is exposed to open space. Each storage compartment has a limiting boss at its opening end. The identification module is used to identify whether a user is picking up fasteners inside the warehouse; An inventory calculation system is installed in each of the aforementioned storage warehouses and is detachably assembled with each warehouse. The inventory calculation system integrates a gravity sensing unit, a data processing unit, and a wireless transmission unit. The inventory calculation system is used to sense the grasping action of the staff in the corresponding storage warehouse, and to detect the change in gravity in the storage warehouse before and after the grasping action in real time through the gravity sensing unit. Combined with the standard weight of a single fastener and the weight error compensation value, the data processing unit calculates the quantity of the remaining fasteners in the corresponding storage warehouse, and the wireless transmission unit is used to synchronize the remaining quantity data in real time.

2. The shelf accessory picking and identification system according to claim 1, characterized in that, The identification module is installed in the open space of the open shelf and is used to identify the fastener grasping behavior of the staff in each of the storage warehouses and the location information of the corresponding storage warehouse. The identification module is detachably connected to the open shelf. The identification module is equipped with an action recognition threshold determination unit to distinguish between valid grasping actions and invalid touching actions. Invalid touching actions include the action of briefly swiping the hand across the opening of the storage warehouse and unintentionally touching the fastener but not grasping it.

3. The shelf accessory picking and identification system according to claim 1, characterized in that, The open shelving also includes beams, uprights, and a base. The base has lockable casters at the bottom. Bolts connect the beams and uprights, allowing for detachable connection. The identification module includes a visual recognition unit and an RFID identification unit. The visual recognition unit consists of multiple cameras installed at the bottom of the beams and / or the inside of the uprights on each layer of the open shelving. The camera lenses face the corresponding storage area, and the lenses are protected by anti-fog and dustproof covers to capture images of workers' hand movements. The visual recognition unit also has a built-in image preprocessing module. The RFID... The RFID identification unit is located at the edge of the warehouse opening. The RFID identification unit is equipped with a high-frequency RFID reader / writer, which is used to read RFID tags on staff badges or operating tools to assist in identity recognition and correlation with work trajectories. The inventory calculation system also includes an infrared sensing unit installed on the warehouse to detect whether a staff member's hand is inserted into the warehouse area. The infrared sensing unit is signal-connected to the visual recognition unit and the gravity sensing unit. When the infrared sensing unit detects a hand inserted, it simultaneously triggers the visual recognition unit to focus and take a picture, and the gravity sensing unit to enter real-time detection mode.

4. The shelf accessory picking and identification system according to claim 1, characterized in that, Each of the aforementioned storage compartments is equipped with an adjustable partition, which is slidably connected along the length of the storage compartment. The bottom of the partition is equipped with an elastic locking buckle, which is used to divide a single storage compartment into multiple sub-areas and is compatible with small fasteners of different sizes. The bottom of the storage compartment is equipped with an anti-slip cushioning pad, and the surface of the anti-slip cushioning pad is provided with anti-slip texture. The side wall of the storage compartment is equipped with a transparent observation window, and the opening of the storage compartment is equipped with a removable dust cover.

5. The shelf accessory picking and identification system according to claim 1, characterized in that, Example 2: The recognition module consists of several cameras installed on the open shelf, with at least two cameras installed on each layer of the open shelf, respectively located at both ends of the open shelf; the cameras are used for image acquisition and analysis, processing the acquired hand movement images in real time, and recognizing the hand movements of the staff and the corresponding location of the grasped inventory warehouse; the cameras have built-in storage modules.

6. The shelf accessory picking and identification system according to claim 1, characterized in that, The gravity sensing unit is a pressure sensor installed on the bottom wall of each of the storage compartments. The pressure sensor is a piezoelectric pressure sensor. The inventory calculation system is equipped with a temperature compensation module to automatically correct the detection data of the pressure sensor according to changes in ambient temperature. The inner wall of each storage compartment is provided with an anti-slip buffer layer. The opening of each storage compartment is provided with a limiting stop, which is an arc-shaped structure. The limiting stop is used to prevent workers from accidentally touching the pressure sensor by extending their hands excessively into the storage compartment when grabbing fasteners. The bottom of the pressure sensor is provided with an elastic buffer seat.

7. The shelf accessory picking and identification system according to claim 2, characterized in that, The shelf parts picking and identification system also includes a material management system, which is signal-connected to the identification module and the inventory calculation system; the material management system is used to receive the remaining fastener quantity data of each of the inventory warehouses transmitted by the inventory calculation system; The material management system is equipped with a data encryption module for encrypting transmitted inventory and operational data.

8. The shelf accessory picking and identification system according to claim 7, characterized in that, The material management system includes a data storage unit, a threshold setting unit, an alert unit, a data statistical analysis unit, and a terminal interaction unit. The threshold setting unit is used to set replenishment thresholds for the inventory warehouses of different specifications of fasteners. The replenishment thresholds include an initial threshold, a warning threshold, and an emergency threshold. The alert unit is equipped with at least one of the following methods to issue replenishment alerts: an audible and visual alarm device installed on the top of the open shelving, and a terminal message push that is simultaneously connected to at least one of a mobile APP, a computer client, and an industrial tablet. The data statistical analysis unit is used to perform real-time statistical analysis of inventory data and operational data.

9. The shelf accessory picking and identification system according to claim 7, characterized in that, The open shelving has a multi-layer structure, with at least one identification module on each layer. The inventory calculation system on each layer is independently connected to the material management system. Each layer of the open shelving has an independent power module. Each layer of the open shelving has a status indicator light to display the working status of the identification module and the inventory calculation system on that layer.

10. The shelf accessory picking and identification system according to claim 7, characterized in that, The identification module is also used to identify the identity information of the staff. The identification module is equipped with a face recognition unit and an RFID identification unit. The face recognition unit is integrated into the action recognition threshold determination unit and is used to collect the facial images of the staff for identity comparison. The material management system is also used to record the time, quantity, and specifications of fasteners grabbed by different staff in each of the storage warehouses, and at the same time record the staff's identity information, operation time, and operation trajectory to form a complete operation traceability file. The material management system has a built-in permission management unit, which is used to manage the staff's positions and responsibilities and set different operation permissions.

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