Electrified material warehouse management system and management method thereof

Abstract

The invention relates to an electrified material warehouse management system and a management method thereof. The electrified material warehouse management system comprises a WMS warehouse management system, a PDA handheld terminal and a WCS warehouse control system. And the WMS warehouse management system issues an allocation list to the WCS warehouse control system, and the WCS warehouse control system controls carrying equipment in the warehouse to carry out material container carrying operation according to the allocation list. By integrating the WMS system, the MES system, the WCS system and the PDA handheld terminal, warehouse-out and warehouse-in tasks of materials are automatically planned and executed according to real-time requirements of a production line, and automation and precision of logistics distribution are achieved. According to the invention, the problems of insufficient information automation, unclear material demand and distribution planning, disordered warehouse management and low operation efficiency in the existing warehouse management system are solved, automation and optimization of warehouse management are realized, and rapid and accurate management requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics management, and in particular to an electrified material warehouse management system and a management method thereof. Background Art

[0002] Warehouse is a general term for buildings and places for keeping and storing goods. Warehouse management is the management of warehouses and the materials stored in them, and the storage and safekeeping of goods through warehouses. At present, the function of warehouse management in logistics has developed from traditional material storage and safekeeping to multiple functions such as receiving, classifying, measuring, packaging, sorting, distribution, and storage of materials. In recent years, with the development of warehouse management technology, the level of the overall logistics industry has been improved.

[0003] At present, the informatization construction of warehouses in many enterprises lags behind, resulting in a low level of informatization in warehouse management, which cannot meet the needs of fast and accurate management. In addition, the warehouse management of many enterprises is chaotic, lacking a clear overall plan from material demand to inbound and outbound management, resulting in excess inventory or out-of-stock phenomenon. Summary of the invention

[0004] In view of this, it is necessary to provide an electrified material warehouse management system and a management method thereof to solve the above-mentioned problems in the prior art.

[0005] In order to solve the above problems, in the first aspect, the present invention provides an electrified material warehouse management system and a management method thereof, including a WMS warehouse management system, a PDA handheld terminal and a WCS warehouse control system;

[0006] The WMS warehouse management system is used to obtain material demand information from the upstream MES production execution system, create a warehouse entry or warehouse delivery order according to the material demand information, and issue a warehouse entry task or a warehouse delivery task;

[0007] The PDA handheld terminal is in communication connection with the WMS warehouse management system. The PDA handheld terminal is used to execute the warehousing task or the outbound task, complete the warehousing and outbound operation of the material and the inventory count by scanning the material barcode and the container barcode, and transmit the warehousing and outbound information and inventory information of the material to the WMS warehouse management system;

[0008] The WCS warehouse control system is communicatively connected to the WMS warehouse management system; the WMS warehouse management system is also used to issue transfer orders to the WCS warehouse control system during the execution of outbound tasks or inbound tasks, and the WCS warehouse control system is used to control the handling equipment in the warehouse to carry out material container handling operations according to the transfer orders.

[0009] Preferably, the WMS warehouse management system includes:

[0010] The entry order management module is used to create, delete, modify, query, review, print labels and issue entry orders;

[0011] The outbound order management module is used to create, delete, modify, query, review and issue outbound orders;

[0012] The transfer order management module is used to add, delete, modify, query and review transfer orders;

[0013] The inventory management module is used to update the inventory information of materials in real time after the inventory count of materials is completed on the PDA handheld terminal.

[0014] The MES production execution system is used to predict material demand information by moving sliding window average method, the formula is:

[0015]

[0016] Where P' n is the forecast production quantity on day n, P n-i It is the predicted production quantity on the nith day in the moving window average method, where i is the number of days in the moving window relative to the nth day, and size is the set moving window size.

[0017] Preferably, the WMS warehouse management system is also used for:

[0018] After obtaining the material demand information, the WMS warehouse management system uses genetic algorithms to calculate the optimal storage combination of cargo locations based on the material demand information, tallying and handling time, and final delivery time.

[0019] Assumption C i is the number of the material box, P i is the number of the cargo location, and the specific arrangement of the material box storage is represented by a bijective function P = f(X), and f original represents the storage combination of cargo locations; the transportation time from a specific cargo location to the line warehouse is expressed by the function t out (P) indicates that the cargo position P i Arrival location P′ i The time between swap (P i ,P′ i ), λ is the weight coefficient, the number of goods that need to be transported to the line warehouse is m, then the storage combination of the cargo space is:

[0020]

[0021] In the formula, f optimalA function that represents the optimal storage combination of cargo locations. It is calculated using a genetic algorithm and aims to minimize the weighted sum of the handling time and the cargo exchange time.

[0022] Preferably, the PDA handheld terminal is specifically used for:

[0023] Scan the material barcode to receive the material;

[0024] Scan material barcodes and container barcodes to perform material in and out operations, and transmit material in and out information to the WMS warehouse management system;

[0025] Scan material barcodes and container barcodes to perform inventory counting of materials, and transmit the inventory information of materials to the WMS warehouse management system;

[0026] The material barcode is an identification code on the product, and the container barcode is a pallet identification code or a material box identification code.

[0027] Preferably, the warehouse includes a pallet storage area and a material box storage area; the pallet storage area is provided with a plurality of pallet shelves, and the material box storage area is provided with a plurality of material box shelves;

[0028] The WMS warehouse management system also includes: a cargo location management module, which is used to manage the cargo locations of the pallet racks and the container racks.

[0029] Preferably, the handling equipment includes a forklift AGV, a material box AGV and a roller line, and the forklift AGV, the material box AGV and the roller line are all connected to the WCS warehouse control system;

[0030] The forklift AGV is used to perform pallet handling tasks or pallet return tasks under the control of the WCS warehouse control system;

[0031] The material box AGV and roller line are used to perform material box handling tasks or material box return tasks under the control of the WCS warehouse control system.

[0032] In a second aspect, the present invention further provides a storage management method of the electrified material warehouse management system as described in the first aspect, comprising:

[0033] The WMS warehouse management system obtains material demand information from the upstream MES production execution system, creates a warehouse entry or warehouse delivery order based on the material demand information, and issues a warehouse entry task or a warehouse delivery task.

[0034] The PDA handheld terminal executes the warehousing task or outbound task, completes the material warehousing and outbound operation and inventory counting by scanning the material barcode and container barcode, and transmits the material warehousing and outbound information and inventory information to the WMS warehouse management system;

[0035] The WMS warehouse management system issues a transfer order to the WCS warehouse control system during the execution of an outbound task or an inbound task; wherein the transfer order includes a pallet handling task, a pallet return task, a material box handling task, and a material box return task;

[0036] The WCS warehouse control system controls the handling equipment in the warehouse to carry out material container handling operations according to the transfer order; wherein the warehouse includes a pallet storage area and a material box storage area.

[0037] Preferably, after the WMS warehouse management system creates a warehouse entry or a warehouse exit order, the warehouse management method further includes:

[0038] The inbound / outbound process of the pallet warehouse area or the inbound / outbound process of the material box warehouse area is executed through the WMS warehouse management system, PDA handheld terminal and WCS warehouse control system.

[0039] Preferably, the warehousing process of the pallet storage area includes:

[0040] The WMS warehouse management system creates a pallet storage area entry order and issues a pallet storage area entry task, where the materials to be entered are placed at the material entry point;

[0041] If the material has been placed on the pallet in advance, the PDA handheld terminal scans the material barcode and pallet identification code to complete the warehouse entry form; if the material has not been placed on the pallet in advance, the PDA handheld terminal calls for the empty pallet to be stacked and put into the warehouse. At this time, the WMS warehouse management system sends the pallet transportation task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to transport the empty pallet in the warehouse to the material entry point, and transports the material to the pallet. The PDA handheld terminal scans the material barcode and pallet identification code to complete the warehouse entry form;

[0042] After completing the incoming order, the WMS warehouse management system sends the pallet return task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to move the pallet containing materials to the pallet shelf. At this time, the WMS warehouse management system updates the incoming order information, and updates the inventory information of the pallet warehouse area and the storage location information of the pallet shelf.

[0043] Preferably, the outbound process of the pallet storage area includes:

[0044] The WMS warehouse management system creates a pallet warehouse outbound order and issues a pallet warehouse outbound task;

[0045] The PDA handheld terminal selects the pallet warehouse area delivery order and executes the pallet warehouse area delivery task;

[0046] The WMS warehouse management system sends the pallet handling task to the WCS warehouse control system, which dispatches the forklift AGV to transport the material pallets in the warehouse to the material outbound point;

[0047] After taking the materials from the pallet, the PDA handheld terminal scans the material barcode and pallet identification code to complete the outbound delivery order;

[0048] After completing the incoming order, the WMS warehouse management system sends the pallet return task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to move the pallet containing materials to the pallet shelf. At this time, the WMS warehouse management system updates the outgoing order information, and updates the inventory information of the pallet warehouse area and the storage location information of the pallet shelf.

[0049] The beneficial effects of adopting the above scheme are:

[0050] The electrified material warehouse management system and management method provided by the present invention realizes automatic planning and execution of material inbound and outbound tasks according to the real-time needs of the production line by integrating the WMS warehouse management system, the MES production execution system, the WCS warehouse control system and the PDA handheld terminal, and realizes the automation and precision of logistics distribution. The present invention solves the problems of insufficient information automation, unclear material demand and distribution planning, chaotic warehouse management and low operating efficiency in the existing warehouse management system, realizes the automation and optimization of warehouse management, and meets the needs of fast and accurate management. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic diagram of the structure of the electrified material warehouse management system provided by the present invention;

[0052] Figure 2 The structural block diagram of the WMS warehouse management system provided by the present invention;

[0053] Figure 3 A flow chart of the storage management method of the electrified material warehouse management system provided by the present invention;

[0054] Figure 4 A warehousing flow chart of the pallet storage area provided by the present invention;

[0055] Figure 5 A flow chart of the outbound delivery of the pallet storage area provided by the present invention;

[0056] Figure 6 A flow chart of warehousing in the material box storage area provided by the present invention;

[0057] Figure 7 This is a flow chart for the outbound delivery of the material box storage area provided by the present invention. DETAILED DESCRIPTION

[0058] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0059] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0060] At present, the informatization construction of warehouses in many enterprises lags behind, resulting in a low level of informatization in warehouse management, which cannot meet the needs of fast and accurate management. In addition, the warehouse management of many enterprises is chaotic, lacking a clear overall plan from material demand to inbound and outbound management, resulting in excess inventory or out-of-stock phenomenon.

[0061] In view of this, the present invention provides an electrified material warehouse management system, which integrates the WMS warehouse management system, the MES production execution system, the WCS warehouse control system and the PDA handheld terminal to automatically plan and execute the material inbound and outbound tasks according to the real-time needs of the production line, and realize the automation and precision of logistics distribution. The following will be explained and introduced through multiple embodiments.

[0062] An electrified material warehouse refers to a warehouse that uses electrification technology and automated equipment for management and operation in logistics, manufacturing or other related fields. Compared with traditional material warehouses, it has a higher degree of automation and intelligence, and can achieve more efficient and accurate material management and flow.

[0063] Figure 1 This is a schematic diagram of the structure of an electrified material warehouse management system provided by the present invention. Figure 1 As shown, the electrified material warehouse management system includes at least a WMS (Warehouse Management System) warehouse management system, a PDA (Personal Digital Assistant) handheld terminal and a WCS (Warehouse Control System) warehouse control system.

[0064] The WMS warehouse management system is connected to the MES (Manufacturing Execution System) production execution system to complete the automated logistics distribution of production line requirements. Specifically, the WMS warehouse management system is used to obtain material demand information from the upstream MES production execution system, create a warehouse entry or warehouse exit order based on the material demand information, and issue a warehouse entry task or a warehouse exit task. In this embodiment, the WMS warehouse management system is connected to the upstream MES production execution system to automatically plan the material warehouse entry and exit tasks according to the real-time needs of the production line. The application scenarios of this embodiment include production areas and warehouse areas, and materials in the warehouse area can be transported to the production area based on the material demand information of the upstream MES production execution system.

[0065] In this embodiment, the MES production execution system is used to predict material demand information by moving sliding window average method, and the formula is:

[0066]

[0067] Where P' n is the forecast production quantity on day n, P n-i It is the predicted production quantity on the nith day in the moving window average method, where i is the number of days in the moving window relative to the nth day, and size is the set moving window size.

[0068] The WMS system can optimize logistics distribution plans based on the demand forecast information provided by the MES system, thereby improving production efficiency and reducing logistics costs.

[0069] In a preferred embodiment, in an electrified material warehouse, there are differences in operations during busy hours and idle hours. The WMS warehouse management system provided in this embodiment can perform automatic tallying operations during idle hours. The purpose of tallying operations is to improve the handling efficiency during busy hours and shorten the average handling distance and time as much as possible. After obtaining material demand information from the MES production execution system, the WMS warehouse management system uses a genetic algorithm to calculate the optimal cargo storage combination based on the material demand information, tallying handling time (i.e., the time to move from the current location to the material outbound point) and the final outbound time;

[0070] Assumption C i is the number of the material box, P i is the number of the cargo location, and the specific arrangement of the material box storage is represented by a bijective function P = f(X), and f original represents the storage combination of cargo locations; the transportation time from a specific cargo location to the line warehouse is expressed by the function t out (P) indicates that the cargo position P i Arrival location P′ i The time between swap (Pi ,P′ i ), λ is the weight coefficient, the number of goods that need to be transported to the line warehouse is m, then the storage combination of the cargo space is:

[0071]

[0072] In the formula, f optimal A function that represents the optimal storage combination of cargo locations. It is calculated using a genetic algorithm and aims to minimize the weighted sum of the handling time and the cargo exchange time.

[0073] WMS sends the optimized material storage plan to the WCS warehouse control system, which generates specific handling instructions and path planning. During off-peak hours, automated equipment automatically tallies materials according to the handling plan generated by WCS. Frequently shipped materials are sorted to a location close to the shipping area to reduce the handling distance and time during busy hours.

[0074] The PDA handheld terminal is in communication connection with the WMS warehouse management system. In this embodiment, the warehouse operator can use the PDA handheld terminal to perform the warehousing task or the outbound task, complete the material warehousing and outbound operation and inventory count by scanning the material barcode and the container barcode, and transmit the material warehousing and outbound information and inventory information to the WMS warehouse management system, and perform inventory management and cargo location management through the WMS warehouse management system.

[0075] In this embodiment, the PDA handheld terminal is specifically used for: scanning material barcodes to receive materials; scanning material barcodes and container barcodes to enter and exit materials, and transmitting the entry and exit information of materials to the WMS warehouse management system; scanning material barcodes and container barcodes to take inventory of materials, and transmitting the inventory information of materials to the WMS warehouse management system; wherein the material barcode is the identification code on the product, and the container barcode is the pallet identification code or the material box identification code.

[0076] The WCS warehouse control system is communicatively connected to the WMS warehouse management system; the WMS warehouse management system is also used to issue transfer orders to the WCS warehouse control system during the execution of outbound tasks or inbound tasks, and the WCS warehouse control system is used to control the handling equipment in the warehouse to carry out material container handling operations according to the transfer orders.

[0077] Specifically, the handling equipment in the warehouse includes forklift AGV (Automated Guided Vehicle), material box AGV and roller line, and the forklift AGV, material box AGV and roller line are all connected to the WCS warehouse control system. The forklift AGV is used to perform pallet handling tasks or pallet return tasks under the control of the WCS warehouse control system; the material box AGV and roller line are used to perform material box handling tasks or material box return tasks under the control of the WCS warehouse control system. The WCS warehouse control system can also display traffic maps near the warehouse area and report the status of forklift AGV, material box AGV and roller line.

[0078] In the actual operation process, the present invention optimizes the material handling tasks that the WCS warehouse control system is responsible for, and breaks down the handling tasks into more detailed parts. The vehicles that perform the handling include forklift AGV and material box AGV. The present invention makes full use of the backpack of the vehicle, and the designed handling process includes: 1. Move the material container to the backpack of the vehicle, and reserve an empty backpack position on the vehicle; 2. The vehicle drives to the line side warehouse; 3. The vehicle takes an empty container from the line side warehouse to the empty backpack, and then puts a material container into the line side warehouse, and then puts an empty container from the line side warehouse into the empty backpack, and keeps circulating until the vehicle is full of empty containers; 4. The vehicle returns to the warehouse with the empty container; 5. The vehicle puts the empty container on the shelf in the warehouse. Such a process can save half of the handling distance (approximately equal to the time), and only two trips are required.

[0079] The electrified material warehouse management system provided by the present invention realizes automatic planning and execution of material inbound and outbound tasks according to the real-time needs of the production line by integrating the WMS warehouse management system, the MES production execution system, the WCS warehouse control system and the PDA handheld terminal, and realizes the automation and precision of logistics distribution. The present invention solves the problems of insufficient information automation, unclear material demand and distribution planning, chaotic warehouse management and low operating efficiency in the existing warehouse management system, realizes the automation and optimization of warehouse management, and meets the needs of fast and accurate management.

[0080] In a preferred embodiment of the present invention, the process of linkage between the MES system, the WMS system and the WCS system of the present invention includes:

[0081] The loading device in the production area is integrated with an industrial camera. The industrial camera uses a machine vision algorithm to count the number of remaining materials in the production area. If the number of remaining materials is lower than the preset quantity threshold, the handling equipment will send a signal of material shortage to the MES production execution system. The MES production execution system will convert this signal into a signal to call the WMS warehouse management system for materials and send it to the WMS warehouse management system. The WMS warehouse management system will generate a delivery task for the WCS warehouse control system to dispatch vehicles based on the real-time situation of the material inventory and cargo location. The WCS warehouse control system dispatches forklift AGVs to transport the materials in the warehouse area to the designated storage location. After the vehicle operation is completed, the WCS warehouse control system will notify the WMS warehouse management system through a callback API, and the WMS warehouse management system will in turn notify the MES production execution system, which will coordinate the sending of corresponding instructions to the loading device and the production platform. Then the robot of the loading device will cooperate with the production platform to clamp, move, and load the replenished materials. This process will be repeated continuously.

[0082] In a preferred embodiment of the present invention, the MES system, the WMS system and the WCS system implement the automatic supply of materials through the following steps:

[0083] A) The camera on the production line monitors the material silo of the production line. When the machine vision algorithm determines that there is insufficient material in the silo, it will send a material shortage signal to the MES system via the MODBUS protocol, indicating that materials need to be replenished.

[0084] B) After receiving the signal, the MES system sends a request to the WMS system through the HTTP protocol to query the inventory details of the required materials, including quantity and storage location.

[0085] C) After the WMS system obtains material demand information from the MES production execution system, it calculates the optimal material storage plan through a genetic algorithm based on the transportation target location, demand quantity, inventory quantity and inventory location of the corresponding materials.

[0086] D) The WMS system sends the transport task to the WCS system via the HTTP protocol and waits for the WCS system to call back.

[0087] E) The WCS system is responsible for coordinating the handling tasks of different robots in the warehouse. When the robot arrives at the loading port, the WCS system applies to the MES system for unloading through the HTTP protocol.

[0088] F) MES controls the unloading robot arm of the production line to unload materials from the handling robot. After unloading is completed, the HTTP protocol is used to notify the WCS system that unloading is complete.

[0089] G) After receiving the notification of unloading completion, the WCS system coordinates the robot to return to the inventory location. After the robot completes the task, the WCS system returns the task execution result (such as success, failure, exception, etc.) to the WMS system through the HTTP protocol.

[0090] H) The WMS system updates inventory records based on feedback from the WCS to ensure the accuracy of inventory data.

[0091] Figure 2 The structural block diagram of the WMS warehouse management system provided by the present invention is shown in FIG. Figure 2 , the WMS warehouse management system includes:

[0092] The incoming order management module is used to create, delete, modify, query, review, print labels and issue incoming orders.

[0093] The outbound order management module is used to create, delete, modify, query, review and issue outbound orders.

[0094] The transfer order management module is used to add, delete, modify, query and review transfer orders.

[0095] The inventory management module is used to update the inventory information of materials in real time after the inventory count of materials is completed on the PDA handheld terminal.

[0096] Specifically, through the inventory management module, operations such as adding, deleting, modifying, querying, reviewing, and rechecking inventory information can be performed.

[0097] In a preferred embodiment of the present invention, the warehouse managed by the electrified material warehouse management system includes a pallet storage area and a material box storage area; the pallet storage area is provided with a plurality of pallet shelves, and the material box storage area is provided with a plurality of material box shelves.

[0098] Among them, the material box storage area is equipped with one entry and exit point, and the warehouse operators at the entry and exit point of the material box storage area use the PDA handheld management terminal to realize the entry and exit operations of the material box storage area. The pallet storage area is equipped with one entry point and one exit point, and the warehouse operators at the entry and exit points of the pallet storage area use the PDA handheld management terminal to realize the entry and exit operations of the pallet storage area.

[0099] Reference Figure 2 The WMS warehouse management system also includes: a cargo location management module, which is used to manage the cargo locations of the pallet racks and the box racks.

[0100] Figure 3 The flowchart of the storage management method of the electrified material warehouse management system provided by the present invention is shown in FIG. Figure 3 , the method comprising:

[0101] The WMS warehouse management system obtains material demand information from the upstream MES production execution system, creates a warehouse entry or warehouse delivery order based on the material demand information, and issues a warehouse entry task or a warehouse delivery task.

[0102] The PDA handheld terminal executes the warehousing task or outbound task, completes the material warehousing and outbound operation and inventory counting by scanning the material barcode and container barcode, and transmits the material warehousing and outbound information and inventory information to the WMS warehouse management system;

[0103] The WMS warehouse management system issues a transfer order to the WCS warehouse control system during the execution of an outbound task or an inbound task; wherein the transfer order includes a pallet handling task, a pallet return task, a material box handling task, and a material box return task;

[0104] The WCS warehouse control system controls the handling equipment in the warehouse to carry out material container handling operations according to the transfer order; wherein the warehouse includes a pallet storage area and a material box storage area.

[0105] The electrified material warehouse management method provided by the present invention realizes automatic planning and execution of material warehousing and inbound tasks according to the real-time needs of the production line by integrating the WMS warehouse management system, the MES production execution system, the WCS warehouse control system and the PDA handheld terminal, and realizes the automation and precision of logistics distribution.

[0106] In a preferred embodiment of the present invention, after the WMS warehouse management system creates a warehouse entry order or a warehouse exit order, the warehouse management method further includes:

[0107] The inbound / outbound process of the pallet warehouse area or the inbound / outbound process of the material box warehouse area is executed through the WMS warehouse management system, PDA handheld terminal and WCS warehouse control system.

[0108] Figure 4 The warehousing flow chart of the pallet storage area provided by the present invention is shown in FIG. Figure 4 The warehousing process of the pallet storage area includes:

[0109] The WMS warehouse management system creates a pallet storage area entry order and issues a pallet storage area entry task, where the materials to be entered are placed at the material entry point;

[0110] If the material has been placed on the pallet in advance, the warehouse operator scans the material barcode and pallet identification code through the PDA handheld terminal to complete the warehouse entry form; if the material has not been placed on the pallet in advance, the warehouse operator calls the empty pallet for palletizing and warehousing through the PDA handheld terminal. At this time, the WMS warehouse management system sends the pallet transportation task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to transport the empty pallet in the warehouse to the material entry point, and transports the material to the pallet. The PDA handheld terminal scans the material barcode and pallet identification code to complete the warehouse entry form;

[0111] After completing the incoming order, the WMS warehouse management system sends the pallet return task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to move the pallet containing materials to the pallet shelf. At this time, the WMS warehouse management system updates the incoming order information, and updates the inventory information of the pallet warehouse area and the storage location information of the pallet shelf.

[0112] Figure 5 The outbound flow chart of the pallet storage area provided by the present invention is shown in FIG. Figure 5 , the outbound process of the pallet warehouse area includes:

[0113] The WMS warehouse management system creates a pallet warehouse outbound order and issues a pallet warehouse outbound task;

[0114] The warehouse operator selects the pallet warehouse outbound order and executes the pallet warehouse outbound task through the PDA handheld terminal;

[0115] The WMS warehouse management system sends the pallet handling task to the WCS warehouse control system, which dispatches the forklift AGV to transport the material pallets in the warehouse to the material outbound point;

[0116] After taking the materials from the pallet, the warehouse operator scans the material barcode and pallet identification code through the PDA handheld terminal to complete the outbound delivery order;

[0117] After completing the incoming order, the WMS warehouse management system sends the pallet return task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to move the pallet containing materials to the pallet shelf. At this time, the WMS warehouse management system updates the outgoing order information, and updates the inventory information of the pallet warehouse area and the storage location information of the pallet shelf.

[0118] Figure 6 The warehousing flow chart of the material box storage area provided by the present invention is shown in FIG. Figure 6 The warehousing process of the material box storage area includes:

[0119] The MES production execution system issues the material box storage area entry order to the WMS warehouse management system, and the WMS warehouse management system issues the material box storage area entry task;

[0120] Warehouse operators use PDA handheld terminals to select the material box storage area entry order and execute the material box storage area entry task;

[0121] The WMS warehouse management system sends the material box handling task to the WCS warehouse control system. The WCS warehouse control system dispatches the material box AGV to carry the empty material boxes in the warehouse to the roller line workstation. Then, the WCS warehouse control system controls the operation of the roller line to transport the material boxes to the material entry point through the roller line and load the materials into the material boxes.

[0122] The warehouse operator completes the bin storage area entry form by scanning the material barcode and bin identification code through the PDA handheld terminal. After completing the entry form, the WMS warehouse management system updates the bin storage area entry form information and updates the inventory information of the bin storage area. At the same time, the WMS warehouse management system sends the bin return task to the WCS warehouse control system, and the WCS warehouse control system dispatches the bin AGV to move the bin containing the material to the bin shelf, and the WMS warehouse management system updates the bin shelf's cargo location information.

[0123] Figure 7 The outbound flow chart of the material box storage area provided by the present invention is shown in FIG. Figure 7 , the outbound process of the material box storage area includes:

[0124] The WMS warehouse management system creates a material box warehouse area delivery order based on the material demand information of the MES production execution system and issues the material box warehouse area delivery task to the WCS warehouse control system;

[0125] The WCS warehouse control system dispatches the material box AGV to move the material box containing materials to the designated material outbound point, and the WMS warehouse management system updates the storage location. The line workers in the material box storage area complete the collection according to the electronic tag (material box identification code) on the material box, put the material box back to the original storage location after collection, and turn off the electronic tag of the material box.

[0126] After the material outbound and pickup of the bin storage area is completed, the WMS warehouse management system updates the outbound order information of the bin storage area and updates the inventory information of the bin storage area. At the same time, the WMS warehouse management system sends the bin return task to the WCS warehouse control system, and the WCS warehouse control system dispatches the bin AGV to move the bin to the bin shelf, and the WMS warehouse management system updates the cargo location information of the bin shelf.

[0127] In summary, the present invention provides an electrified material warehouse management system and a management method thereof, which realizes automatic planning and execution of material inbound and outbound tasks according to the real-time needs of the production line by integrating the WMS warehouse management system, the MES production execution system, the WCS warehouse control system and the PDA handheld terminal, and realizes the automation and precision of logistics distribution. The present invention solves the problems of insufficient information automation, unclear material demand and distribution planning, chaotic warehouse management and low operating efficiency in the existing warehouse management system, realizes the automation and optimization of warehouse management, and meets the needs of fast and accurate management.

[0128] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0129] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrified material warehouse management system, characterized in that: Including WMS warehouse management system, PDA handheld terminal and WCS warehouse control system; The WMS warehouse management system is used to obtain material demand information from the upstream MES production execution system, create a warehouse entry or warehouse delivery order according to the material demand information, and issue a warehouse entry task or a warehouse delivery task; The PDA handheld terminal is in communication connection with the WMS warehouse management system. The PDA handheld terminal is used to execute the warehousing task or the outbound task, complete the warehousing and outbound operation of the material and the inventory count by scanning the material barcode and the container barcode, and transmit the warehousing and outbound information and inventory information of the material to the WMS warehouse management system; The WCS warehouse control system is communicatively connected to the WMS warehouse management system; the WMS warehouse management system is also used to issue transfer orders to the WCS warehouse control system during the execution of outbound tasks or inbound tasks, and the WCS warehouse control system is used to control the handling equipment in the warehouse to carry out material container handling operations according to the transfer orders.

2. The electrified material warehouse management system according to claim 1, characterized in that: The WMS warehouse management system includes: The entry order management module is used to create, delete, modify, query, review, print labels and issue entry orders; The outbound order management module is used to create, delete, modify, query, review and issue outbound orders; The transfer order management module is used to add, delete, modify, query and review transfer orders; The inventory management module is used to update the inventory information of materials in real time after the inventory count of materials is completed on the PDA handheld terminal.

3. The electrified material warehouse management system according to claim 1, characterized in that: The MES production execution system is used to predict material demand information by moving sliding window average method, the formula is: In the formula, P′ n is the forecast production quantity on day n, P n-i It is the predicted production quantity on the nith day in the moving window average method, where i is the number of days in the moving window relative to the nth day, and size is the set moving window size.

4. The electrified material warehouse management system according to claim 3 is characterized in that: The WMS warehouse management system is also used for: After obtaining the material demand information, the WMS warehouse management system uses genetic algorithms to calculate the storage combination of cargo locations based on the material demand information, tallying and handling time, and final outbound time; Assumption C i is the number of the material box, P i is the number of the cargo location, and the specific arrangement of the material box storage is represented by a bijective function P = f(X), and f original represents the storage combination of cargo locations; the transportation time from a specific cargo location to the line warehouse is expressed by the function t out (P) indicates that the cargo position P i Arrival location P' i The time between swap (P i , P i ), λ is the weight coefficient, the number of goods that need to be transported to the line warehouse is m, then the storage combination of the cargo space is:

5. The electrified material warehouse management system according to claim 1, characterized in that: The PDA handheld terminal is specifically used for: Scan the material barcode to receive the material; Scan material barcodes and container barcodes to perform material in and out operations, and transmit material in and out information to the WMS warehouse management system; Scan material barcodes and container barcodes to perform inventory counting of materials, and transmit the inventory information of materials to the WMS warehouse management system; The material barcode is an identification code on the product, and the container barcode is a pallet identification code or a material box identification code.

6. The electrified material warehouse management system according to claim 1, characterized in that: The warehouse includes a pallet storage area and a material box storage area; the pallet storage area is provided with a plurality of pallet shelves, and the material box storage area is provided with a plurality of material box shelves; The WMS warehouse management system also includes: a cargo location management module, which is used to manage the cargo locations of the pallet racks and the container racks.

7. The electrified material warehouse management system according to claim 6, characterized in that: The handling equipment includes a forklift AGV, a material box AGV and a roller line, and the forklift AGV, the material box AGV and the roller line are all connected to the WCS warehouse control system; The forklift AGV is used to perform pallet handling tasks under the control of the WCS warehouse control system; The material box AGV and roller line are used to perform material box handling tasks under the control of the WCS warehouse control system.

8. An electrified material warehouse management method according to any one of claims 1 to 7, characterized in that: include: The WMS warehouse management system obtains material demand information from the upstream MES production execution system, creates a warehouse entry or warehouse delivery order based on the material demand information, and issues a warehouse entry task or a warehouse delivery task. The PDA handheld terminal executes the warehousing task or outbound task, completes the material warehousing and outbound operation and inventory counting by scanning the material barcode and container barcode, and transmits the material warehousing and outbound information and inventory information to the WMS warehouse management system; The WMS warehouse management system issues a transfer order to the WCS warehouse control system during the execution of an outbound task or an inbound task; wherein the transfer order includes a pallet handling task, a pallet return task, a material box handling task, and a material box return task; The WCS warehouse control system controls the handling equipment in the warehouse to carry out material container handling operations according to the transfer order; wherein the warehouse includes a pallet storage area and a material box storage area.

9. The electrified material warehouse management method according to claim 8, characterized in that: After creating a warehouse entry or warehouse delivery order in the WMS warehouse management system, the method further includes: Execute the inbound / outbound process of the pallet warehouse area or the inbound / outbound process of the material box warehouse area through the WMS warehouse management system, PDA handheld terminal and WCS warehouse control system; The warehousing process of the pallet storage area includes: The WMS warehouse management system creates a pallet storage area entry order and issues a pallet storage area entry task, where the materials to be entered are placed at the material entry point; If the material has been placed on the pallet in advance, the PDA handheld terminal scans the material barcode and pallet identification code to complete the warehouse entry form; if the material has not been placed on the pallet in advance, the PDA handheld terminal calls for the empty pallet to be stacked and put into the warehouse. At this time, the WMS warehouse management system sends the pallet transportation task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to transport the empty pallet in the warehouse to the material entry point, and transports the material to the pallet. The PDA handheld terminal scans the material barcode and pallet identification code to complete the warehouse entry form; After completing the incoming order, the WMS warehouse management system sends the pallet return task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to move the pallet containing materials to the pallet shelf. At this time, the WMS warehouse management system updates the incoming order information, and updates the inventory information of the pallet warehouse area and the storage location information of the pallet shelf.

10. The electrified material warehouse management method according to claim 9, characterized in that: The outbound process of the pallet storage area includes: The WMS warehouse management system creates a pallet warehouse outbound order and issues a pallet warehouse outbound task; The PDA handheld terminal selects the pallet warehouse area delivery order and executes the pallet warehouse area delivery task; The WMS warehouse management system sends the pallet handling task to the WCS warehouse control system, which dispatches the forklift AGV to transport the material pallets in the warehouse to the material outbound point; After taking the materials from the pallet, the PDA handheld terminal scans the material barcode and pallet identification code to complete the outbound delivery order; After completing the incoming order, the WMS warehouse management system sends the pallet return task to the WCS warehouse control system. The WCS warehouse control system dispatches the forklift AGV to move the pallet containing materials to the pallet shelf. At this time, the WMS warehouse management system updates the outgoing order information, and updates the inventory information of the pallet warehouse area and the storage location information of the pallet shelf.

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