A method for positive and negative picking and outbound of a three-dimensional warehouse

Abstract

The present application discloses a method for picking and outbound of a three-dimensional warehouse in both forward and reverse directions, belonging to the technical field of logistics transportation. When picking goods for outbound, by increasing the comparison of the quantity of the goods required for outbound and the remaining goods, if it is compared that the quantity of the goods required for outbound is greater than the quantity of the remaining goods, the goods are selected in reverse to pick out a small amount of the remaining goods, and then the goods required for outbound are taken out of the warehouse. Otherwise, the goods required for outbound are picked out in the forward direction. By the method of reverse selection, the quantity of the picked goods can be reduced, the picking time can be shortened, and the outbound efficiency can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of logistics transportation, and particularly relates to a method for positive and negative picking and outbound of a stereoscopic warehouse. Background Art

[0002] Currently, due to the limited storage space of the stereoscopic warehouse, when storing goods in the stereoscopic warehouse, it is often necessary to place multiple different types of goods on the same pallet and then store them in a storage location. Therefore, it is often necessary to pick the goods when they are out of the warehouse. Specifically, generally, the goods specified by the outbound task are directly picked and taken out of the warehouse. However, when the quantity of goods to be out of the warehouse is much larger than the quantity of the remaining goods, the picking process takes a lot of time, resulting in low outbound efficiency. Summary of the Invention

[0003] (I) Objects of the Invention

[0004] In order to overcome the above deficiencies, the object of the present invention is to provide a method for positive and negative picking and outbound of a stereoscopic warehouse, so as to solve the technical problem that when the quantity of goods to be out of the warehouse is much larger than the quantity of the remaining goods, it takes a lot of time to pick the goods to be out of the warehouse, resulting in low outbound efficiency.

[0005] (II) Technical Solutions

[0006] To achieve the above object, the technical solutions provided by the present application are as follows:

[0007] A method for positive and negative picking and outbound of a stereoscopic warehouse, comprising:

[0008] Obtaining an outbound task;

[0009] Comparing the quantity of the goods to be out of the warehouse and the remaining goods included in the specified outbound storage location in the outbound task;

[0010] If it is compared that the quantity of the goods to be out of the warehouse is greater than the quantity of the remaining goods, pick out the remaining goods, take out the goods to be out of the warehouse, and transfer the remaining goods back to the stereoscopic warehouse;

[0011] If it is compared that the quantity of the goods to be out of the warehouse is less than the quantity of the remaining goods, pick out the goods to be out of the warehouse, take out the goods to be out of the warehouse, and transfer the remaining goods back to the stereoscopic warehouse;

[0012] When picking the goods out of the warehouse in the present application, by adding a comparison of the quantity of the goods to be out of the warehouse and the quantity of the remaining goods, if it is compared that the quantity of the goods to be out of the warehouse is greater than the quantity of the remaining goods, the goods are picked in reverse, a small amount of the remaining goods are picked out, and then the remaining goods to be out of the warehouse are taken out. In this way, the quantity of the picked goods can be reduced, the picking time can be shortened, and the outbound efficiency can be improved.

[0013] In some embodiments, it further includes: Transferring the remaining goods back to the automated storage and retrieval system includes:

[0014] Determine the types of goods included in all the remaining goods;

[0015] If it is determined that the remaining goods only contain one type of goods, determine whether the maximum historical outbound quantity of this type of goods per single time exceeds a first predetermined value;

[0016] If it is determined that the maximum historical outbound quantity of this type of goods per single time exceeds the first predetermined value;

[0017] Transfer the remaining goods to a storage location that only stores this type of goods and is not full;

[0018] By judging the maximum historical outbound quantity of the remaining goods of a single type, if the maximum historical outbound quantity of this type of goods per single time exceeds the first predetermined value, it indicates that the outbound quantity of this type of goods is large. Therefore, placing the remaining goods of this type into the storage location for this type of goods can supplement the quantity of this type of goods. Next time when outbound, all the goods of this type on this storage location can be directly outbond, avoiding the need to pick and combine from other storage locations due to insufficient quantity of the corresponding type of goods on this storage location. In this embodiment, the goods can be sorted out during outbound, which is convenient for next outbound use, and this embodiment can improve the outbound efficiency.

[0019] In some embodiments, transferring the remaining goods back to the automated storage and retrieval system includes:

[0020] Determine the types of goods included in the remaining goods;

[0021] If it is determined that the remaining goods only contain one type of goods, determine whether the maximum historical outbound quantity of this type of goods per single time exceeds the first predetermined value;

[0022] If it is determined that the maximum historical outbound quantity of this type of goods per single time does not exceed the first predetermined value;

[0023] Determine whether the outbound frequency of this type of goods within a predetermined time period exceeds a second predetermined value;

[0024] If it is determined that it exceeds the second predetermined value, transfer the remaining goods to an empty storage location near the outbound port;

[0025] Otherwise, transfer the remaining goods back to the original storage location;

[0026] When it is determined that the current remaining goods are goods with a small outbound quantity, then by judging the outbound frequency of the remaining goods, if the outbound frequency is higher than the second predetermined value, it indicates that this good is frequently outbond. At this time, transfer the remaining goods to be stored in an empty storage location near the outbound port, which can shorten the path length of the four-way transport cart when picking up goods next time and improve the outbound efficiency.

[0027] In some embodiments, transferring the remaining goods back to the automated storage and retrieval system (AS / RS) includes:

[0028] Determining the types of goods included in the remaining goods;

[0029] If it is determined that the remaining goods contain multiple types of goods simultaneously;

[0030] Determining whether the quantity difference between various types of goods exceeds a third predetermined value;

[0031] If it is determined that the difference exceeds the third predetermined value, determining whether the maximum historical single - time outbound quantity of the type of goods with the largest quantity exceeds a first predetermined value;

[0032] If it exceeds, transferring the remaining goods to a storage location that only stores the type of goods with the largest quantity and is not full;

[0033] Otherwise, transferring the remaining goods back to the original storage location.

[0034] When the remaining goods contain multiple types of goods simultaneously, by judging the quantity difference between the goods, if the quantity difference exceeds the third predetermined value, it indicates that the quantity of a certain type of goods is large and the quantity of other goods is small. Then, by judging whether the maximum historical single - time outbound quantity of the type of goods with the largest quantity exceeds the predetermined value, if it exceeds, it indicates that the outbound quantity of this type of goods is large. Therefore, placing the remaining goods in the storage location of the type of goods with the largest quantity to supplement the quantity of this type of goods. Next time when outbound, only a small amount of sorting of other types of goods is required to ship the required outbound goods, which can improve the outbound efficiency.

[0035] In some embodiments, the outbound quantity and the number of outbound times of each type of goods are recorded after each outbound. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a flowchart of a method for outbound selection of an automated storage and retrieval system (AS / RS) of the present invention;

[0037] Figure 2 is a flowchart of a preferred embodiment of a method for outbound selection of an automated storage and retrieval system (AS / RS) of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well - known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0039] A method for picking and shipping in and out of a three-dimensional warehouse provided by the present invention includes:

[0040] Obtain a shipping task;

[0041] Compare the quantity of the goods to be shipped out and the remaining goods contained in the designated shipping location in the shipping task;

[0042] If it is compared that the quantity of the goods to be shipped out is greater than the quantity of the remaining goods, synchronously move out the goods to be shipped out and the remaining goods in the shipping location, pick out the remaining goods, ship out the goods to be shipped out, and transfer the remaining goods back to the three-dimensional warehouse;

[0043] If it is compared that the quantity of the goods to be shipped out is less than the quantity of the remaining goods, synchronously move out the goods to be shipped out and the remaining goods in the shipping location, pick out the goods to be shipped out, ship out the goods to be shipped out, and transfer the remaining goods back to the three-dimensional warehouse;

[0044] Specifically, the types and quantities of goods stored in each location are recorded in the system background.

[0045] Specifically, the shipping task includes: shipping out XXX pieces of XXX goods.

[0046] Specifically, the goods to be shipped out in this application refer to the goods that need to be shipped out as specified in the shipping task, and the remaining goods are the goods placed on the same pallet but not required to be shipped.

[0047] Specifically, the goods in each storage location are loaded on pallets. When shipping out, if sorting is required, the goods on the entire pallet are transported to the tally area at the same time, and the goods are sorted in the tally area. This application optimizes the sorting steps. When it is necessary to sort and ship out the goods in a certain storage location, compare the quantity of the goods to be shipped out and the remaining goods contained in the designated shipping location in the shipping task. If it is compared that the quantity of the goods to be shipped out is greater than the quantity of the remaining goods, pick out the remaining goods, then ship out the goods to be shipped out, and transfer the remaining goods back to the three-dimensional warehouse.

[0048] The following uses an example to illustrate the above steps in detail:

[0049] It is necessary to ship out 70 pieces of product A in the target storage location. At this time, there are 70 pieces of product A and 30 pieces of product B stored on pallet ① placed in the target storage location, a total of 100 pieces of goods;

[0050] When picking normally, 70 pieces of product A need to be picked onto pallet ②, and 30 pieces of product B will remain on pallet ① and be returned to the warehouse;

[0051] This application performs reverse picking on the goods on pallet ①, that is, 30 pieces of B goods are selected from pallet ① and placed on pallet ③, and the attributes of pallet ① are changed to pallet ③. At this time, pallet ③ is a pallet with goods. Pallet ③ and the remaining B goods are transferred back to the warehouse, and the goods to be shipped out remaining on pallet ① are shipped out;

[0052] Shipping out according to the reverse picking method can reduce 40 picking steps, thus saving picking time and improving shipping efficiency.

[0053] Specifically, after each shipment, the shipment quantity and shipment times of each type of goods are recorded to form a shipment history record form.

[0054] Specifically, the remaining goods may contain only one type of goods or multiple types of goods at the same time.

[0055] Preferably, during the process of transferring the remaining goods back to the automated storage and retrieval system, preferably, the following steps are added in this application:

[0056] Judge the types of goods included in all the remaining goods;

[0057] If it is judged that all the remaining goods contain only one type of goods (such as only B goods), judge whether the maximum single - history shipment quantity of this type of goods (queried from the history record form) exceeds the first predetermined value (which can be adjusted according to the actual situation);

[0058] If it is judged that the maximum single - history shipment quantity of this type of goods exceeds the first predetermined value;

[0059] Transfer the remaining goods (B goods) to the storage location that only stores this type of goods and is not full (the storage location that only stores B goods and is not full);

[0060] If it is judged that the maximum single - history shipment quantity of this type of goods does not exceed the first predetermined value;

[0061] Judge whether the shipment frequency of this type of goods within a predetermined time period (queried from the history record form) exceeds the second predetermined value (judge whether the shipment frequency of B goods exceeds the second predetermined value);

[0062] If it exceeds, transfer the remaining goods (B goods) to the empty storage location near the shipping outlet;

[0063] Otherwise, transfer the remaining goods (B goods) back to the original storage location (if there is no empty storage location in the empty storage location near the shipping outlet, transfer the remaining goods (B goods) back to the original storage location);

[0064] If it is judged that the remaining goods contain multiple types of goods at the same time (such as containing B goods and C goods at the same time);

[0065] Determine whether the quantity difference between various types of goods (the difference between the total quantity of Goods B and the total quantity of Goods C) exceeds a third predetermined value (which can be adjusted according to the actual situation);

[0066] If it exceeds, determine whether the maximum single historical outbound quantity of the type of goods with the largest quantity exceeds a first predetermined value (if the total quantity of Goods B is greater than the total quantity of Goods C, determine whether the total quantity of Goods B is greater than the first predetermined value);

[0067] If it exceeds, move the remaining goods (Goods B and Goods C) to the storage location that only stores the type of goods with the largest quantity and is not full (the storage location that only stores Goods B and is not full);

[0068] Otherwise, move the remaining goods back to the original storage location.

[0069] It should be understood that the above specific embodiments of the present invention are only for illustrative or explanatory purposes of the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A method for picking and shipping in and out of a three-dimensional warehouse, characterized in that, Including: Obtain a warehouse-out task; Compare the quantity of the required goods to be shipped out and the remaining goods contained in the specified warehouse-out location in the warehouse-out task; If it is compared that the quantity of the required goods to be shipped out is greater than the quantity of the remaining goods, pick out the remaining goods, ship out the required goods to be shipped out, and transfer the remaining goods back to the automated storage and retrieval system; If it is compared that the quantity of the required goods to be shipped out is less than the quantity of the remaining goods, pick out the goods to be shipped out, ship out the required goods to be shipped out, and transfer the remaining goods back to the automated storage and retrieval system; Transferring the remaining goods back to the automated storage and retrieval system includes: Judge the types of goods contained in the remaining goods; If it is judged that the remaining goods only contain one type of goods, judge whether the maximum single historical outbound quantity of this type of goods exceeds a first predetermined value; If it is judged that the maximum single historical outbound quantity of this type of goods exceeds the first predetermined value; Transfer the remaining goods to a location that only stores this type of goods and is not full.

2. The method for picking and shipping in and out of the three-dimensional warehouse in both positive and negative directions according to claim 1, wherein Transferring the remaining goods back to the automated storage and retrieval system includes: Judge the types of goods contained in the remaining goods; If it is judged that the remaining goods only contain one type of goods, judge whether the maximum single historical outbound quantity of this type of goods exceeds a first predetermined value; If it is judged that the maximum single historical outbound quantity of this type of goods does not exceed the first predetermined value; Judge whether the outbound frequency of this type of goods within a predetermined time period exceeds a second predetermined value; If it is judged to exceed the second predetermined value, transfer the remaining goods to an empty location near the outbound port; Otherwise, transfer the remaining goods back to the original location.

3. The method for picking and shipping in and out of the three-dimensional warehouse according to claim 1 is characterized in that, Transferring the remaining goods back to the automated storage and retrieval system includes: Judge the types of goods contained in the remaining goods; If it is judged that the remaining goods contain multiple types of goods at the same time; Judge whether the quantity difference between various types of goods exceeds a third predetermined value; If it exceeds, judge whether the maximum single historical outbound quantity of the type of goods with the largest quantity exceeds the first predetermined value; If it exceeds, transfer the remaining goods to a location that only stores the type of goods with the largest quantity and is not full; Otherwise, transfer the remaining goods back to the original location.

4. The method for positive and negative picking and outbound of the three-dimensional warehouse according to any one of claims 1-3, characterized in that, Record the outbound quantity and outbound times of each type of goods after each outbound.

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