A method for dynamically adjusting goods warehousing sequence based on RGV

Abstract

The application provides a method for dynamically adjusting the storage sequence of goods based on an RGV, and belongs to the field of intelligent warehouse storage management, and comprises the following steps: S1, a production line produces goods in a production sequence, and a stacking machine codes the goods produced in the production sequence into stacks on pallets according to the quantity or weight; S2, a robot or a worker carries the pallets to a conveying line; the pallets are scanned, and the storage task is generated; S3, the storage task is perfected to obtain a storage task; S4, the storage task is sent to the conveying line, and the conveying line conveys the pallets placed on the conveying line in step S2 to a transfer area; S5, an RGV car reads the storage task of the transfer area in real time; S6, the RGV car executes the task of conveying the pallets in the transfer area according to the task in the task execution table in step S5 in sequence, and conveys the pallets to the conveying line where the stacking machine storage port is located. The application utilizes the equipment flexibly to call the RGV to perform the goods delivery, and the manual participation is also used to distinguish, so that the warehouse goods delivery efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of intelligent warehouse inbound management, specifically to a method for dynamically adjusting the order of goods entering the warehouse based on RGV. Background Technology

[0002] With the rapid development of science and technology, the modern logistics industry is constantly moving towards intelligentization. RGV (Automated Guided Vehicle) is an indispensable part of the intelligent logistics system, mainly used in various high-density storage warehouses. RGV can automatically handle goods, transporting materials according to plans and instructions without manual operation, greatly improving the efficiency of transportation and warehousing. Currently, there are two methods for calling RGV: one is stacking and sorting, and the other is specifying materials on a particular conveyor line.

[0003] An RGV is a rail-mounted transport vehicle primarily used to carry goods from a conveyor line and transport them to the loading port of a stacker crane, where the stacker crane and its conveyor line are responsible for subsequent warehousing.

[0004] The above two methods of calling RGV have the following drawbacks:

[0005] 1. In stack sorting, goods can only be delivered in a specific order, lacking flexibility and unable to adjust the order of goods entering the warehouse according to market or production capacity requirements;

[0006] 2. When a certain type of goods urgently needs to be put into storage, the existing system cannot realize the emergency storage of the goods. Summary of the Invention

[0007] To address the two drawbacks of existing technologies, this invention proposes a method for dynamically adjusting the order of goods entering the warehouse based on RGV, comprising the following steps:

[0008] S1, the production line produces goods, and the palletizer stacks the goods produced in the production sequence onto pallets according to quantity or weight.

[0009] The goods ID includes the goods' name, specifications, attribute parameters, and production date;

[0010] The tray ID is a unique code for the tray;

[0011] S2, the pallet is moved to the conveyor line by a robot or a person; the robot or a person scans the pallet ID and the inlet ID to generate an inbound task to be completed.

[0012] The inlet ID is the pallet's origin ID;

[0013] S3, complete the tasks to be completed before entry into the warehouse, and obtain the entry tasks;

[0014] The WCS warehouse management system completes the inbound tasks, assigning priority and destination values ​​to each task to generate inbound tasks.

[0015] The WCS warehouse management system is an existing system. This invention does not innovate the working principle and mechanism of the WCS warehouse management system, but only uses the function of assigning priority and destination values ​​to the inbound tasks that need to be completed.

[0016] S4, the warehousing task is sent to the conveyor line, and the conveyor line transports the pallet placed on the conveyor line by the robot or man in step S2 to the transfer area, which is a conveyor unit at the front end of the RGV trolley;

[0017] The conveyor line consists of X lines, where X ≥ 2;

[0018] The conveyor line consists of Y conveyor units, where Y ≥ 1;

[0019] The conveyor line includes a conveyor line operating system, which is an existing system on the market. This invention does not innovate the conveyor line operating system, but only uses the functions and data of the conveyor line operating system. The functional principles of the conveyor line operating system will not be elaborated here.

[0020] The warehousing task flows through the conveyor unit as the pallet is transported. After the pallet arrives at the transfer area, the warehousing task also arrives at a conveyor unit at the front of the RGV trolley.

[0021] S5, the RGV trolley reads the inbound tasks in the transfer area in real time and determines whether the pallets in the transfer area have arrived;

[0022] The RGV cart determines whether a pallet has arrived by reading the inbound task in the transfer area. Compared with the RGV cart's identification of pallet arrival through images, radio frequency, and ultrasound, it has the advantages of speed, low cost, and high accuracy. Compared with the calculation of the WCS warehouse management system or ERP system to obtain the pallet arrival status, it reduces the consumption of server computing and storage resources.

[0023] When an inbound task is read, the RGV vehicle can identify the pallets that have arrived in the transfer area;

[0024] S6, the RGV trolley executes the tasks of the pallets in the transport transfer area sequentially according to the tasks in the handling task execution table obtained in step S5, transporting the pallets to the stacker crane's inlet.

[0025] The conveyor line is in operation.

[0026] Beneficial effects:

[0027] The method of this invention allows for flexible use of RGV (Regional Transport Vehicle) for shipment, making full use of equipment while also allowing for manual judgment. Under effective management, it achieves maximum efficiency and reduces the time spent waiting for goods. This improves the flexibility of warehouse shipments and increases overall warehouse shipment efficiency.

[0028] On the other hand, the method of the present invention solves the problem of not being able to adjust the order of goods entering the warehouse according to market or production capacity demand by using the priority level, serial number, and RGV trolley handling task execution table for the warehousing task, thus providing high flexibility.

[0029] Third, the method of the present invention can avoid the problem of excessive waiting time for shipment tasks in the transit area, which leads to blockage of the back-end conveyor line, by automatically modifying the level of the inbound task in the transit area by the transit area conveyor line.

[0030] Fourth, the method of the present invention solves the problem of emergency warehousing of urgent goods by setting a special level for the warehousing task. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the method for dynamically adjusting the order of goods entering the warehouse based on RGV according to the present invention. Detailed Implementation

[0032] To provide a better understanding of the purpose, structure, features and functions of the present invention, detailed descriptions are provided below with reference to specific embodiments.

[0033] Example 1

[0034] like Figure 1 As shown, this invention proposes a method for dynamically adjusting the order of goods entering the warehouse based on RGV (Regional Storage Vehicle), the method comprising:

[0035] S1, the production line produces goods, and the palletizer stacks the goods produced in the production sequence onto pallets according to quantity or weight.

[0036] The name, specifications, attribute parameters, and production date of the goods being produced are manually entered into the palletizer to generate a goods ID;

[0037] The palletizer records the binding relationship between the cargo ID and the pallet ID, and generates a cargo ID and pallet ID relationship table.

[0038] S2, the pallet is moved to the conveyor line by a robot or a person; the robot or a person scans the pallet ID and the inlet ID to generate an inbound task to be completed.

[0039] The inbound task includes the task number, pallet ID, and inbound port ID;

[0040] The task number is the task's serial number, which increments as the number of new tasks is added.

[0041] The task serial number range is 1-N. When the serial number reaches N, the task serial number cycles back to 1. For example, if the task serial number range is 1-99, when the pipeline reaches 99, the task serial number cycles back to 1.

[0042] S3, complete the tasks to be completed before entry into the warehouse, and obtain the entry tasks;

[0043] Inbound tasks include task number, priority level, destination, and pallet ID;

[0044] The priority level is the priority level for goods entering the warehouse;

[0045] Furthermore, the priority levels are 1-M; 1 is the lowest priority level and M is the highest priority level; for example, if the priority levels are 1-99, then 1 is the lowest priority level and 99 is the highest priority level.

[0046] The destination is the last conveyor line to which the goods are transferred, specifically the stacker crane's inlet.

[0047] The conveyor line it is located on.

[0048] S4. The warehousing task is sent to the conveyor line, which will then transport the robot or human from step S2.

[0049] The pallets placed on the conveyor line are transported to the transfer area, which is the area in front of the RGV trolley.

[0050] One section of the conveyor unit at the end;

[0051] The conveyor line operating system is interconnected with the WCS warehouse management system. The conveyor line operating system can display the flow of inbound tasks and can also modify inbound tasks.

[0052] S5, the RGV trolley reads the inbound tasks in the transfer area in real time and determines whether the pallets in the transfer area have arrived;

[0053] The RGV vehicle reads the inbound tasks in the transfer area, obtains the priority level, task number and destination of the inbound tasks, and generates a handling task execution table. The handling task execution table is sorted according to the two conditions of priority level and task number.

[0054] First, the data is automatically sorted according to priority, with the highest priority data in the first position and the lowest priority data in the second position.

[0055] The lowest one is ranked last;

[0056] Secondly, sort the tasks in descending order of their task numbers. For tasks with the same priority level, sort them in descending order of their task numbers.

[0057] S6, the RGV trolley executes the tasks of the transport transfer area pallet in sequence according to the tasks in the handling task execution table obtained in step S5, and transports the pallet to the conveyor line where the stacker crane's warehouse entrance is located.

[0058] Example 2

[0059] like Figure 1 As shown, when goods are transported according to steps S1-S6, and the waiting time for pallets in the transit area reaches a set time threshold, the transit area conveyor line modifies the inbound task, upgrading the priority level of the inbound task to the highest level; the RGV trolley reads the inbound task of the transit area and synchronously updates the task order in the handling task execution table; the task of transporting pallets in the transit area is executed according to the updated handling task execution table, and the pallets are transported to the conveyor line where the stacker crane's inbound port is located;

[0060] In actual logistics, because AGVs perform handling tasks based on the priority level and task number of the inbound tasks in the transit area, there may be a phenomenon where the waiting time for outbound tasks in the transit area is too long. When this happens, it will block the back-end conveyor line. By automatically modifying the inbound task level of the transit area conveyor line, the problem of excessive waiting time for outbound tasks in the transit area leading to blockage of the back-end conveyor line can be avoided.

[0061] When it is necessary to urgently put certain goods or goods on a pallet into the warehouse or to urgently transport goods on a pallet;

[0062] On the operation interface of the conveyor system, the warehousing task corresponding to the pallet is modified, and the level of the warehousing task is changed to special level;

[0063] Synchronously, the conveyor line will change the grade of the inbound tasks that were previously on the conveyor line to the special grade.

[0064] The special grade is a non-standard grade that is higher than the highest grade.

[0065] When the inbound task in the RGV cart handling task execution table is of the special level, the RGV cart will optimally execute the handling task of the special level inbound task;

[0066] This invention solves the problem of urgent warehousing of goods by setting a special level for warehousing tasks.

[0067] The present invention has been described by the above-described embodiments; however, these embodiments are merely within the scope of implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any modifications and refinements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A method for dynamically adjusting the order of goods entering the warehouse based on RGV, characterized in that: include S1: The production line produces goods, and the palletizer stacks the goods produced in the production sequence onto pallets according to quantity or weight. S2: Pallets are moved to the conveyor line by robots or manual labor; robots or manual labor scan the pallet ID and inlet ID to generate an inbound task to be completed. The inlet ID is the pallet's origin ID; The inbound task includes the task number, pallet ID, and inbound port ID; The task number is the task's serial number, which increments as the number of new tasks is added. The serial number of the task is in the range of 1-N. When the serial number reaches N, the serial number of the task cycles back to 1. S3: Complete the tasks to be completed before entering the warehouse, and obtain the tasks to be entered into the warehouse; S4: Send the warehousing task to the conveyor line. The conveyor line will transport the pallet placed on the conveyor line by the robot or man in step S2 to the transfer area. The transfer area is a conveyor unit at the front end of the RGV trolley. S5: The RGV vehicle reads the inbound tasks in the transfer area in real time and determines whether the pallets in the transfer area have arrived. The RGV vehicle reads the inbound tasks in the transfer area, obtains the priority level, task number, and destination of the inbound tasks, and generates a transport task execution table. The transport task execution table is sorted according to two conditions: priority level and task number. According to the priority level, the highest priority is placed first and the lowest priority is placed last. According to the task number, the task is sorted in descending order. For tasks with the same priority level, the task number is sorted in descending order. S6: The RGV trolley executes the pallet transport task in the transport transfer area sequentially according to the tasks in the handling task execution table obtained in step S5, transporting the pallet to the stacker crane's inlet. The conveyor line; According to steps S1-S6, when the waiting time for pallets in the transit area reaches the set time threshold, the conveyor line in the transit area modifies the warehousing task and upgrades the priority level of the warehousing task to the highest level; the RGV trolley reads the warehousing task in the transit area and synchronously updates the task order in the handling task execution table; the task of transporting pallets in the transit area is executed according to the updated handling task execution table, and the pallets are transported to the conveyor line where the stacker crane's warehousing port is located.

2. The method for dynamically adjusting the order of goods entering the warehouse based on RGV as described in claim 1, characterized in that: In step S1, the name, specifications, attribute parameters, and production date of the goods being produced are manually entered into the palletizer to generate a goods ID; The palletizer records the binding relationship between the cargo ID and the pallet ID, and generates a cargo ID and pallet ID relationship table.

3. The method for dynamically adjusting the order of goods entering the warehouse based on RGV as described in claim 1, characterized in that: In step S3, the WCS warehouse management system completes the inbound task, assigning priority and destination values ​​to each task to generate the inbound task. Inbound tasks include task number, priority level, destination, and pallet ID; The priority level is the priority level for goods entering the warehouse; Priority levels range from 1 to M; 1 is the lowest priority and M is the highest priority. The destination is the last conveyor line to which the goods are transferred, specifically the stacker crane's inlet. The conveyor line it is located on.

4. The method for dynamically adjusting the order of goods entering the warehouse based on RGV as described in claim 1, characterized in that: In step S4, the conveyor lines include X lines, where X ≥ 2; The conveyor line consists of Y conveyor units, where Y ≥ 1; The conveyor line includes a conveyor line operating system, which is interconnected with the WCS warehouse management system. The conveyor line operating system displays the flow of inbound tasks and allows modification of inbound tasks. The warehousing task flows through the conveyor unit along with the pallet. After the pallet arrives at the transfer area, the warehousing task also arrives at a conveyor unit at the front of the RGV trolley.

5. The method for dynamically adjusting the order of goods entering the warehouse based on RGV as described in claim 1, characterized in that: In step S5, the RGV vehicle determines whether the pallet has arrived by reading the inbound task in the transfer area. When the inbound task is read, the RGV vehicle can identify that the pallet has arrived in the transfer area.

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