CN112801569A - Article sorting method and device - Google Patents
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Abstract
The invention discloses an article sorting method and device, and relates to the technical field of warehouse logistics. One embodiment of the method comprises: matching the picking tasks with picking grooves of the workstations, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items; and conveying the corresponding central warehouse delivery items in the picking task to a picking groove corresponding to the picking task, conveying the corresponding inventory items in the picking task to the picking groove corresponding to the picking task through conveying equipment, and finishing the picking of the items in the picking task at the picking groove. The embodiment can save human resources, reduce the picking cost, coordinate the picking operation of inventory items and central warehouse delivery items, and remarkably improve the picking efficiency of the items in the picking task.
Description
Technical Field
The invention relates to the technical field of warehouse logistics, in particular to an article sorting method and device.
Background
The logistics center finishes the delivery, picking, packing and transportation of goods every day according to the picking task of the store. The corresponding goods in the order received by the logistics center are partially met by the stock of the warehouse (called partA), partially provided by the center bin (called partB), and only if all the goods contained in the order are picked, the packaging can be completed for subsequent distribution. At present, for the goods with parts of partA and partB in an order, the goods need to be picked respectively, the packing is completed after all the goods are picked, human resources and warehouse resources are consumed, the picking efficiency is low, particularly under the condition of a plurality of orders, the picking operation of warehouse inventory and the goods delivered by a central warehouse is asynchronous, and the goods delivered out of the warehouse are easy to accumulate.
Disclosure of Invention
In view of this, embodiments of the present invention provide an article picking method and apparatus, which can save human resources, reduce picking cost, coordinate picking operations of inventory articles and central warehouse delivered articles, and significantly improve the picking efficiency of articles in picking tasks.
To achieve the above object, according to a first aspect of embodiments of the present invention, there is provided an item picking method including:
matching the picking tasks with picking grooves of the workstations, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items;
and conveying the corresponding central warehouse delivery items in the picking task to a picking groove corresponding to the picking task, conveying the corresponding inventory items in the picking task to the picking groove corresponding to the picking task through conveying equipment, and finishing the picking of the items in the picking task at the picking groove.
Further, the step of transporting the corresponding central bin delivered items in the picking order to the picking slot corresponding to the picking order comprises: after receiving the articles transferred by the central bin, the logistics center judges whether the articles transferred by the central bin are the corresponding central bin delivered articles in the picking task, if so, the corresponding central bin delivered articles in the articles transferred by the central bin are transported to the picking groove corresponding to the picking task; if not, storing the articles transferred to the central bin into a warehouse.
Furthermore, the transportation equipment is a multilayer shuttle, and the warehouse is a stereoscopic warehouse; the step of transporting the corresponding inventory item in the picking order to the picking slot corresponding to the picking order by the transporting device includes:
determining the picking sequence of the inventory items according to the type and the quantity of the corresponding inventory items in the picking task, the storage position positions of the inventory items in the stereoscopic warehouse and the current position of the multi-layer shuttle vehicle;
and according to the picking sequence, transporting the corresponding inventory items in the picking tasks to the picking grooves corresponding to the picking tasks through the multi-layer shuttle car for picking.
Further, the step of matching the picking order with the picking chutes of the workstations includes:
mapping the plurality of picking tasks into feature vectors according to item types of the plurality of picking tasks;
clustering the plurality of picking tasks into clusters according to the characteristic vectors, wherein the number of the clusters is consistent with that of the workstations;
judging whether the number of picking tasks in the cluster is less than or equal to the number of picking slots of the workstation corresponding to the cluster;
and if so, respectively matching the picking tasks in the cluster with the picking grooves.
Further, prior to the step of mapping the plurality of picking tasks to feature vectors according to item types of the plurality of picking tasks, the item picking method further comprises: according to the hierarchical distribution of the workstations and the item types of the picking tasks, the picking tasks are clustered into a plurality of collection sheets, wherein the number of the collection sheets is consistent with the number of the hierarchical levels of the workstations, and each collection sheet comprises a plurality of picking tasks.
Further, if not, after the picking slots of the workstations corresponding to the clusters are respectively matched with one in-cluster picking task, placing the remaining in-cluster picking tasks into the pool to be distributed.
And further judging whether an empty picking slot exists, and if so, determining that the target picking task is matched with the empty picking slot from the pool to be distributed according to the association degree of the item types, wherein the association degree of the item types refers to the association degree of the item types of the picking tasks in the pool to be distributed and the item types of the picking tasks in the clusters corresponding to the workstations with the empty picking slot.
According to a second aspect of embodiments of the present invention there is provided an item picking apparatus comprising:
the matching module is used for matching the picking tasks with the picking grooves of the workstations, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items;
the picking module is used for transporting the corresponding central warehouse delivery articles in the picking task to a picking groove corresponding to the picking task, transporting the corresponding inventory articles in the picking task to the picking groove corresponding to the picking task through the transporting equipment, and finishing picking of the articles in the picking task at the picking groove.
According to a third aspect of the embodiments of the present invention, there is provided a terminal, including:
one or more processors;
a storage device for storing one or more programs,
when executed by one or more processors, cause the one or more processors to implement any of the item picking methods described above.
According to a fourth aspect of embodiments of the present invention there is provided a computer readable medium having stored thereon a computer program which, when executed by a processor, carries out any of the article picking methods described above.
One embodiment of the above invention has the following advantages or benefits: the picking tasks are matched with the picking grooves of the workstations, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items; the method comprises the steps of conveying corresponding central bin delivered articles in a picking task to a picking groove corresponding to the picking task, conveying corresponding inventory articles in the picking task to the picking groove corresponding to the picking task through conveying equipment, and finishing the technical means of picking the articles in the picking task at the picking groove, so that the technical problems of human resource consumption, high picking cost and low picking efficiency in the prior art are solved, human resources are saved, the picking cost is reduced, the picking operation of the inventory articles and the central bin delivered articles is coordinated, and the technical effect of remarkably improving the picking efficiency of the articles in the picking task is improved.
Further effects of the above-mentioned non-conventional alternatives will be described below in connection with the embodiments.
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The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:
fig. 1 is a schematic view of a main flow of an item picking method provided according to a first embodiment of the present invention;
fig. 2 is a schematic view of a main flow of an item picking method provided according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of the main modules of an item picking apparatus provided in accordance with an embodiment of the present invention;
FIG. 4 is an exemplary system architecture diagram in which embodiments of the present invention may be employed;
fig. 5 is a schematic block diagram of a computer system suitable for use in implementing a terminal device or server of an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present invention are described below with reference to the accompanying drawings, in which various details of embodiments of the invention are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Fig. 1 is a schematic diagram of a main flow of an item picking method according to a first embodiment of the present invention, and as shown in fig. 1, the item picking method according to the embodiment of the present invention mainly includes:
step S101, matching a picking task with a picking slot of a workstation, wherein the types of the items of the picking task are stock items and central warehouse delivery items.
The inventory item refers to an item stocked in a warehouse of the logistics center, namely an item capable of meeting the requirement of a picking task through the warehouse of the logistics center; the central warehouse for delivering the articles refers to the articles which are not available in the logistics center or cannot meet the requirement of the picking task due to insufficient quantity and need to be delivered through the central warehouse.
According to an embodiment of the invention, the step of matching the picking tasks with the picking slots of the workstation comprises: mapping the plurality of picking tasks into feature vectors according to item types of the plurality of picking tasks; clustering the plurality of picking tasks into clusters according to the characteristic vectors, wherein the number of the clusters is consistent with that of the workstations; judging whether the number of picking tasks in the cluster is less than or equal to the number of picking slots of the workstation corresponding to the cluster; and if so, respectively matching the picking tasks in the cluster with the picking grooves.
Through the arrangement, sorting tasks are divided and clustered, the sorting tasks with high relevance are concentrated on the same workstation for sorting operation, and the sorting tasks are distributed in a balanced manner, so that the load of each workstation is balanced, and the sorting efficiency is obviously improved.
Further, according to an embodiment of the present invention, before the step of mapping the plurality of picking tasks to feature vectors according to their item types, the item picking method further comprises: according to the hierarchical distribution of the workstations and the item types of the picking tasks, the picking tasks are clustered into a plurality of collection sheets, wherein the number of the collection sheets is consistent with the number of the hierarchical levels of the workstations, and each collection sheet comprises a plurality of picking tasks.
The item type refers to a category classified based on the attribute of the item (mainly, the name of the item, such as the name of a book).
In actual operation, a plurality of workstations are used for picking and packing operations in a warehouse, and in order to improve the picking efficiency, the workstations are generally dispersed in different levels of the warehouse.
Further, according to the embodiment of the present invention, if not, that is, the number of picking tasks in a cluster is greater than the number of picking slots of the workstation corresponding to the cluster, after the picking slots of the workstations corresponding to the cluster are respectively matched with one picking task in a cluster, the remaining picking tasks in a cluster are placed into the pool to be allocated.
Further, according to a specific implementation manner of the embodiment of the present invention, whether an empty picking slot exists is determined, and if yes, the target picking task is determined from the pool to be allocated to match the empty picking slot according to a degree of association of an item type, where the degree of association of the item type refers to a degree of association between the item type of the picking task in the pool to be allocated and an item type of the picking task in a cluster corresponding to the workstation where the empty picking slot exists.
For the picking tasks in the pool to be distributed, the state of the vacant picking slot is judged in real time, the vacant picking slot is matched with the picking task with higher relevance degree, the utilization rate of the picking slot is improved, and meanwhile the picking efficiency is also improved.
Step S102, transporting the corresponding central warehouse delivery articles in the picking tasks to the picking grooves corresponding to the picking tasks, transporting the corresponding inventory articles in the picking tasks to the picking grooves corresponding to the picking tasks through transporting equipment, and finishing picking of the articles in the picking tasks at the picking grooves.
Through the arrangement, for the picking operation of two types of articles to be picked (inventory articles and central bin delivered articles) in the picking tasks, the articles corresponding to the picking tasks are automatically transported to the picking grooves corresponding to the picking tasks through judging and identifying the central bin delivered articles, and the rest articles are transported to the warehouse; the sorting of the inventory items is completed in the warehouse through the conveying equipment, so that the automatic operation of sorting the items in the sorting task in the logistics center is realized, the human resources are saved, the utilization rate of the warehouse is improved, and the sorting efficiency is improved.
According to an embodiment of the present invention, the step of transporting the items delivered by the central warehouse corresponding to the picking task to the picking slot corresponding to the picking task includes: after receiving the articles transferred by the central bin, the logistics center judges whether the articles transferred by the central bin are the corresponding central bin delivered articles in the picking task, if so, the corresponding central bin delivered articles in the articles transferred by the central bin are transported to the picking groove corresponding to the picking task; if not, storing the articles transferred to the central bin into a warehouse.
Through the arrangement, whether the article is indicated in the picking task or not is preferentially judged for the article transferred to the logistics center by the center bin, if yes, the corresponding article is directly conveyed to the picking groove corresponding to the picking task to pick the article delivered to the center bin in the picking task, and if not, the article delivered to the logistics center by the center bin is conveyed to the warehouse to be stored. The problem that in the prior art, articles transferred to the logistics center from the center bin are independently stored on the partition shelf and the center bin required for delivering the articles in the picking task is manually picked is avoided, so that manpower resources are saved, and the utilization rate of the stereoscopic warehouse is improved.
Further, according to the embodiment of the invention, the transportation equipment is a multi-layer shuttle, and the warehouse is a stereoscopic warehouse; the step of transporting the corresponding inventory item in the picking order to the picking slot corresponding to the picking order by the transporting device includes:
determining the picking sequence of the inventory items according to the type and the quantity of the corresponding inventory items in the picking task, the storage position positions of the inventory items in the stereoscopic warehouse and the current position of the multi-layer shuttle vehicle;
and according to the picking sequence, transporting the corresponding inventory items in the picking tasks to the picking grooves corresponding to the picking tasks through the multi-layer shuttle car for picking.
Multilayer shuttle (shunt): the device is applied to a stereoscopic warehouse (a warehouse with a multi-layer goods shelf), and a trolley which runs on a fixed track in a reciprocating or returning mode transports articles to a specified place or a connecting device.
The inventory items are stored in containers on warehouse shelves, a transportation device (such as a multi-layer shuttle) transports the containers loaded with the inventory items corresponding to the picking task on the shelves to a workstation, and a picker picks the corresponding inventory items from the containers and places the corresponding inventory items in the containers in a picking groove to complete picking of the inventory items in the picking task.
The method comprises the steps of weighting the items in the picking tasks needing picking operation in the same workstation to obtain the types of the items needing picking from the stereoscopic warehouse and the total number corresponding to the items, and then combining the storage position positions of the corresponding items and the current position of the shuttle car to realize batch and quick picking operation, so that the picking efficiency of the shuttle car is improved on one hand, and the picking cost is reduced on the other hand.
Further, according to the embodiment of the present invention, for the same workstation, in the case where the number of kinds of inventory items picked up to the workstation is larger than the threshold number, the picking operation of the multi-deck shuttle corresponding to the workstation is stopped.
The above setting mainly considers the accommodating capacity of the workstation and the carrying route occupation condition of the multi-layer shuttle, and for any workstation, if the number of turnover boxes (i.e. the number of types of inventory items) going to the workstation is higher than the threshold number, the task overstock of the shutdown and the elevator is increased sharply, the carrying route of the shutdown is easy to be blocked, and the picking efficiency is limited.
According to the technical scheme of the embodiment of the invention, the picking tasks are matched with the picking grooves of the workstation, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items; the method comprises the steps of conveying corresponding central bin delivered articles in a picking task to a picking groove corresponding to the picking task, conveying corresponding inventory articles in the picking task to the picking groove corresponding to the picking task through conveying equipment, and finishing the technical means of picking the articles in the picking task at the picking groove, so that the technical problems of human resource consumption, high picking cost and low picking efficiency in the prior art are solved, human resources are saved, the picking cost is reduced, the picking operation of the inventory articles and the central bin delivered articles is coordinated, and the technical effect of remarkably improving the picking efficiency of the articles in the picking task is improved.
Fig. 2 is a schematic view of a main flow of an item picking method provided according to a second embodiment of the present invention; as shown in fig. 2, the method for picking items according to the embodiment of the present invention mainly includes:
step S201, according to the level distribution of the workstations and the item types of the picking tasks, clustering the picking tasks into a plurality of collection sheets, wherein the number of the collection sheets is consistent with the level number of the workstations, and each collection sheet comprises a plurality of picking tasks.
One application scenario of the invention is a book logistics center which receives picking tasks of book stores in the district, and a central warehouse (namely, a publishing company supplies books to the book logistics center to serve as a stock) which is arranged at the vertical position of the book logistics centerThe warehouse has 16 work stations, which are distributed on two layers of the stereoscopic warehouse, and each layer has 8 work stations. Thereby clustering the sorting tasks of stores as Set1、Set2The picking tasks of any two library stores in each set have high relevance, so that the bin for loading the same kind of books can only serve one layer of work stations as far as possible, namely, the picking tasks needing the same or similar picking tasks in the library are concentrated on the work stations in the same layer for picking, and the picking efficiency of transportation equipment (such as a multi-layer shuttle) is maximized.
Step S202, the multiple picking tasks are mapped into feature vectors according to the article types of the multiple picking tasks, and the article types are inventory articles and central warehouse delivery articles.
The feature vector corresponding to the picking task of each library store comprises all SKUs (stock keeping units including SKU) in the logistics center1～skunN types of books), the vector element is 0/1 variable, i.e. if there is a single item sku in the picking task1The element sku in the feature vector corresponding to the picking task1Is 1, if not, the element sku in the feature vector corresponding to the picking task is1The value of (d) is 0.
And step S203, clustering a plurality of picking tasks into clusters according to the characteristic vectors, wherein the number of the clusters is consistent with that of the workstations.
According to an embodiment of the present invention, Set is individually paired1、Set2And performing spectral clustering on all the shop picking tasks in the two sets to obtain a plurality of clusters, wherein the number of the clusters is equal to that of the workstations in the layer. For Set1The aggregate sheet obtains 8 clusters, rho1、….、ρ8And the book types corresponding to the picking tasks in each cluster have higher relevance.
Step S204, judging whether the number of picking tasks in the cluster is less than or equal to the number of picking slots of the workstation corresponding to the cluster. If so, i.e., the number of picking tasks within a cluster is less than or equal to the number of picking slots of the workstation corresponding to the cluster, step S205 is performed, and if not, the number of picking tasks within a cluster is greater than the number of picking slots of the workstation corresponding to the cluster, step S208 is passed to.
Cluster ρiIs L, represents a cluster ρiThe number of picking tasks in (1) is L; and cluster ρiThe number n of picking pockets in the corresponding workstation. If L is less than or equal to n, the corresponding workstation in the cluster can synchronously complete the picking of all picking tasks in the cluster, and the picking tasks in the cluster are respectively matched with one picking slot in the workstation.
And S205, matching the picking tasks in the cluster with the picking grooves respectively, and transporting the corresponding central warehouse delivery articles in the picking tasks to the picking grooves corresponding to the picking tasks.
Specifically, for the items delivered to the logistics center by the center bin, whether the items are indicated in the picking tasks or not is preferentially judged, if yes, the corresponding items are directly delivered to the picking slots corresponding to the picking tasks to pick the items delivered to the center bin in the picking tasks, and if not, the items delivered to the logistics center by the center bin are delivered to the warehouse to be stored.
Through the arrangement, for the articles transferred to the logistics center from the center bin, the corresponding articles are directly conveyed to the picking groove corresponding to the picking task through judgment and identification to pick the articles delivered by the center bin in the picking task, and the rest articles are conveyed to the warehouse to be stored. The problem that in the prior art, articles transferred to the logistics center from the center bin are independently stored on the partition shelf and the center bin required for delivering the articles in the corresponding picking task is manually picked is avoided, so that manpower resources are saved, and the utilization rate of a warehouse is improved.
Step S206, determining the picking sequence of the inventory items according to the type and the quantity of the corresponding inventory items in the picking task, the storage position of the inventory items in the stereoscopic warehouse and the current position of the multi-layer shuttle.
Specifically, for the same workstation, in the case where the number of types of stock items picked up to the workstation is greater than the threshold number, the picking operation of the multi-deck shuttle corresponding to the workstation is stopped.
The above setting mainly considers the accommodating capacity of the workstation and the carrying route occupation condition of the multi-layer shuttle, and for any workstation, if the number of turnover boxes (i.e. the number of types of inventory items) going to the workstation is higher than the threshold number, the task overstock of the shutdown and the elevator is increased sharply, the carrying route of the shutdown is easy to be blocked, and the picking efficiency is limited.
According to a specific implementation mode of the embodiment of the invention, if a bin of a corresponding book of the device needs to be taken out of a warehouse for sorting, in the process of sorting through a multilayer shuttle vehicle, a storage position with the depth of 1 at the approach lane port is preferentially selected; if the bin does not need to be taken out of the warehouse for sorting, the storage position with the depth of 2 at the road junction is preferably selected.
Specifically, the multi-layer shuttle cars in the stereoscopic warehouse can be set as a combination of the shuttle cars and the corresponding layer-changing elevators, and can also be set as a shuttle car configured for each layer of goods shelves of the stereoscopic warehouse, so that the sorting efficiency is further improved.
And step S207, picking the corresponding inventory items in the picking tasks to the picking grooves corresponding to the picking tasks through the multi-layer shuttle vehicle according to the picking sequence.
According to the embodiment of the invention, the book demand of the picking tasks in the corresponding clusters of the workstation is weighted; and according to the weighting result, comprehensively considering the corresponding storage position of the bin of the book to be picked in the stereoscopic warehouse, and determining the picking sequence of the books to be picked at each workstation by combining the current position of the multilayer shuttle. Through the setting, the corresponding picking sequence is determined according to each constraint condition, the picking task balance of the workstation is favorably improved, and the picking efficiency is improved.
And step S208, after the picking slots of the workstations corresponding to the clusters are respectively matched with one in-cluster picking task, putting the remaining in-cluster picking tasks into the pool to be distributed.
If L > n, the corresponding workstation in the cluster can not synchronously complete the picking of all the picking tasks in the cluster, only one picking task is matched with each picking slot preferentially, and then the picking tasks in the rest clusters are placed into the pool to be allocated.
In step S209, it is determined whether or not there is a vacant sorting slot.
Step S210, determining a target picking task from the pool to be distributed to be matched with the vacant picking slot according to the relevance of the item type. And after the matching is completed, the step S205 is carried out to carry out the corresponding picking operation.
And if so, matching the picking task with the highest relevance with the vacant picking slot according to the relevance between the picking task in the cluster corresponding to the vacant picking slot and the item type corresponding to the picking task in the pool to be allocated, thereby improving the utilization rate of the workstations.
According to the technical scheme of the embodiment of the invention, the picking tasks are matched with the picking grooves of the workstation, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items; the method comprises the steps of conveying corresponding central bin delivered articles in a picking task to a picking groove corresponding to the picking task, conveying corresponding inventory articles in the picking task to the picking groove corresponding to the picking task through conveying equipment, and finishing the technical means of picking the articles in the picking task at the picking groove, so that the technical problems of human resource consumption, high picking cost and low picking efficiency in the prior art are solved, human resources are saved, the picking cost is reduced, the picking operation of the inventory articles and the central bin delivered articles is coordinated, and the technical effect of remarkably improving the picking efficiency of the articles in the picking task is improved.
FIG. 3 is a schematic diagram of the main modules of an item picking apparatus provided in accordance with an embodiment of the present invention; as shown in fig. 3, an article picking apparatus 300 according to an embodiment of the present invention mainly includes:
a matching module 301, configured to match a picking order with a picking slot of a workstation, where the item types of the picking order are inventory items and central warehouse delivery items.
The inventory item refers to an item stocked in a warehouse of the logistics center, namely an item capable of meeting the requirement of a picking task through the warehouse of the logistics center; the central warehouse for delivering the articles refers to the articles which are not available in the logistics center or cannot meet the requirement of the picking task due to insufficient quantity and need to be delivered through the central warehouse.
According to an embodiment of the present invention, the matching module 301 is further configured to: mapping the plurality of picking tasks into feature vectors according to item types of the plurality of picking tasks; clustering the plurality of picking tasks into clusters according to the characteristic vectors, wherein the number of the clusters is consistent with that of the workstations; judging whether the number of picking tasks in the cluster is less than or equal to the number of picking slots of the workstation corresponding to the cluster; and if so, respectively matching the picking tasks in the cluster with the picking grooves.
Through the arrangement, sorting tasks are divided and clustered, the sorting tasks with high relevance are concentrated on the same workstation for sorting operation, and the sorting tasks are distributed in a balanced manner, so that the load of each workstation is balanced, and the sorting efficiency is obviously improved.
Further, according to an embodiment of the present invention, the item picking apparatus 300 further comprises an aggregation sheet module for clustering the picking tasks into a plurality of aggregation sheets according to the hierarchical distribution of the workstations and the item types of the picking tasks, wherein the number of the aggregation sheets is consistent with the hierarchical number of the workstations, and each aggregation sheet comprises a plurality of picking tasks, before the step of mapping the plurality of picking tasks into the feature vectors according to the item types of the plurality of picking tasks.
In actual operation, a plurality of workstations are used for picking and packing operations in a warehouse, and in order to improve the picking efficiency, the workstations are generally dispersed in different levels of the warehouse.
According to the embodiment of the present invention, in the case that the number of picking tasks in a cluster is greater than the number of picking slots of the workstation corresponding to the cluster, the matching module 301 is further configured to place the picking tasks in the remaining clusters into the pool to be allocated after matching the picking slots of the workstations corresponding to the cluster with one picking task in a cluster, respectively.
Further, after placing the remaining intra-cluster picking tasks into the pool to be allocated, the matching module 301 is further configured to determine whether there is an empty picking slot, and if so, determine that the target picking task is matched with the empty picking slot from the pool to be allocated according to the association degree of the item type, where the association degree of the item type refers to the association degree between the item type of the picking task in the pool to be allocated and the item type of the intra-cluster picking task corresponding to the workstation where the empty picking slot exists.
For the picking tasks in the pool to be distributed, the state of the vacant picking slot is judged in real time, the vacant picking slot is matched with the picking task with higher relevance degree, the utilization rate of the picking slot is improved, and meanwhile the picking efficiency is also improved.
A picking module 302, configured to transport the corresponding central warehouse delivered items in the picking task to a picking slot corresponding to the picking task, transport the corresponding inventory items in the picking task to the picking slot corresponding to the picking task through a transport device, and complete picking of the items in the picking task at the picking slot.
Through the arrangement, for the picking operation of two types of articles to be picked (inventory articles and central bin delivered articles) in the picking tasks, the articles corresponding to the picking tasks are automatically transported to the picking grooves corresponding to the picking tasks through judging and identifying the central bin delivered articles, and the rest articles are transported to the warehouse; the sorting of the inventory items is completed in the warehouse through the conveying equipment, so that the automatic operation of sorting the items in the sorting task in the logistics center is realized, the human resources are saved, the utilization rate of the warehouse is improved, and the sorting efficiency is improved.
According to the embodiment of the present invention, after the logistics center receives the items transferred to the center bin, the picking module 302 is further configured to determine whether the items transferred to the center bin are the items delivered to the center bin corresponding to the picking task, and if yes, transport the items delivered to the center bin corresponding to the items transferred to the center bin to the picking slot corresponding to the picking task; if not, storing the articles transferred to the central bin into a warehouse.
Through the arrangement, whether the article is indicated in the picking task or not is preferentially judged for the article transferred to the logistics center by the center bin, if yes, the corresponding article is directly conveyed to the picking groove corresponding to the picking task to pick the article delivered to the center bin in the picking task, and if not, the article delivered to the logistics center by the center bin is conveyed to the warehouse to be stored. The problem that in the prior art, articles transferred to the logistics center from the center bin are independently stored on the partition shelf and the center bin required for delivering the articles in the picking task is manually picked is avoided, so that manpower resources are saved, and the utilization rate of the stereoscopic warehouse is improved.
Further, according to the embodiment of the invention, the transportation equipment is a multi-layer shuttle, and the warehouse is a stereoscopic warehouse; the pick module 302 is also to:
determining the picking sequence of the inventory items according to the type and the quantity of the corresponding inventory items in the picking task, the storage position positions of the inventory items in the stereoscopic warehouse and the current position of the multi-layer shuttle vehicle;
and according to the picking sequence, transporting the corresponding inventory items in the picking tasks to the picking grooves corresponding to the picking tasks through the multi-layer shuttle car for picking.
Multilayer shuttle (shunt): the device is applied to a stereoscopic warehouse (a warehouse with a multi-layer goods shelf), and a trolley which runs on a fixed track in a reciprocating or returning mode transports articles to a specified place or a connecting device.
The method comprises the steps of weighting the items in the picking tasks needing picking operation in the same workstation to obtain the types of the items needing picking from the stereoscopic warehouse and the total number corresponding to the items, and then combining the storage position positions of the corresponding items and the current position of the shuttle car to realize batch and quick picking operation, so that the picking efficiency of the shuttle car is improved on one hand, and the picking cost is reduced on the other hand.
Further, according to the embodiment of the present invention, for the same workstation, in the case where the number of kinds of inventory items picked up to the workstation is larger than the threshold number, the picking operation of the multi-deck shuttle corresponding to the workstation is stopped.
The above setting mainly considers the accommodating capacity of the workstation and the carrying route occupation condition of the multi-layer shuttle, and for any workstation, if the number of turnover boxes (i.e. the number of types of inventory items) going to the workstation is higher than the threshold number, the task overstock of the shutdown and the elevator is increased sharply, the carrying route of the shutdown is easy to be blocked, and the picking efficiency is limited.
According to the technical scheme of the embodiment of the invention, the picking tasks are matched with the picking grooves of the workstation, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items; the method comprises the steps of conveying corresponding central bin delivered articles in a picking task to a picking groove corresponding to the picking task, conveying corresponding inventory articles in the picking task to the picking groove corresponding to the picking task through conveying equipment, and finishing the technical means of picking the articles in the picking task at the picking groove, so that the technical problems of human resource consumption, high picking cost and low picking efficiency in the prior art are solved, human resources are saved, the picking cost is reduced, the picking operation of the inventory articles and the central bin delivered articles is coordinated, and the technical effect of remarkably improving the picking efficiency of the articles in the picking task is improved.
It can be understood that, since the method embodiment and the apparatus embodiment are different presentation forms of the same technical concept, the content of the method embodiment portion in the present application should be synchronously adapted to the apparatus embodiment portion, and is not described herein again.
Fig. 4 illustrates an exemplary system architecture 400 for an item picking method or an item picking apparatus to which embodiments of the present invention may be applied.
As shown in fig. 4, the system architecture 400 may include terminal devices 401, 402, 403, a network 404, and a server 405. The network 404 serves as a medium for providing communication links between the terminal devices 401, 402, 403 and the server 405. Network 404 may include various types of connections, such as wire, wireless communication links, or fiber optic cables, to name a few.
A user may use terminal devices 401, 402, 403 to interact with a server 405 over a network 404 to receive or send messages or the like. The terminal devices 401, 402, 403 may have installed thereon various communication client applications, such as shopping-like applications, web browser applications, search-like applications, instant messaging tools, mailbox clients, social platform software, etc. (by way of example only).
The terminal devices 401, 402, 403 may be various electronic devices having a display screen and supporting web browsing, including but not limited to smart phones, tablet computers, laptop portable computers, desktop computers, and the like.
The server 405 may be a server providing various services, such as a background management server (for example only) providing support for shopping websites browsed by users using the terminal devices 401, 402, 403. The background management server may analyze and otherwise process the received data such as matching and picking, and feed back a processing result (for example, matching a picking task with a picking slot of a workstation, transporting a corresponding central warehouse delivery item in the picking task to the picking slot corresponding to the picking task, and transporting a corresponding inventory item in the picking task to the picking slot corresponding to the picking task through a transportation device, which is merely an example) to the terminal device.
It should be noted that the item picking method provided by the embodiment of the present invention is generally executed by the server 405, and accordingly, the item picking apparatus is generally disposed in the server 405.
It should be understood that the number of terminal devices, networks, and servers in fig. 4 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation.
Referring now to FIG. 5, shown is a block diagram of a computer system 500 suitable for use with a terminal device implementing an embodiment of the present invention. The terminal device shown in fig. 5 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 5, the computer system 500 includes a Central Processing Unit (CPU)501 that can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM)502 or a program loaded from a storage section 508 into a Random Access Memory (RAM) 503. In the RAM 503, various programs and data necessary for the operation of the system 500 are also stored. The CPU 501, ROM 502, and RAM 503 are connected to each other via a bus 504. An input/output (I/O) interface 505 is also connected to bus 504.
The following components are connected to the I/O interface 505: an input portion 506 including a keyboard, a mouse, and the like; an output portion 507 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage portion 508 including a hard disk and the like; and a communication section 509 including a network interface card such as a LAN card, a modem, or the like. The communication section 509 performs communication processing via a network such as the internet. The driver 510 is also connected to the I/O interface 505 as necessary. A removable medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 510 as necessary, so that a computer program read out therefrom is mounted into the storage section 508 as necessary.
In particular, according to the embodiments of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 509, and/or installed from the removable medium 511. The computer program performs the above-described functions defined in the system of the present invention when executed by the Central Processing Unit (CPU) 501.
It should be noted that the computer readable medium shown in the present invention can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The modules described in the embodiments of the present invention may be implemented by software or hardware. The described modules may also be provided in a processor, which may be described as: a processor includes a matching module, a sorting module. Where the names of these modules do not in some cases constitute a limitation on the module itself, for example, a matching module may also be described as a "module that matches picking tasks with picking chutes of a workstation".
As another aspect, the present invention also provides a computer-readable medium that may be contained in the apparatus described in the above embodiments; or may be separate and not incorporated into the device. The computer readable medium carries one or more programs which, when executed by a device, cause the device to comprise: matching the picking tasks with picking grooves of the workstations, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items; and conveying the corresponding central warehouse delivery items in the picking task to a picking groove corresponding to the picking task, conveying the corresponding inventory items in the picking task to the picking groove corresponding to the picking task through conveying equipment, and finishing the picking of the items in the picking task at the picking groove.
According to the technical scheme of the embodiment of the invention, the picking tasks are matched with the picking grooves of the workstation, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items; the method comprises the steps of conveying corresponding central bin delivered articles in a picking task to a picking groove corresponding to the picking task, conveying corresponding inventory articles in the picking task to the picking groove corresponding to the picking task through conveying equipment, and finishing the technical means of picking the articles in the picking task at the picking groove, so that the technical problems of human resource consumption, high picking cost and low picking efficiency in the prior art are solved, human resources are saved, the picking cost is reduced, the picking operation of the inventory articles and the central bin delivered articles is coordinated, and the technical effect of remarkably improving the picking efficiency of the articles in the picking task is improved.
The above-described embodiments should not be construed as limiting the scope of the invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of sorting items, comprising:
matching the picking tasks with picking grooves of the workstations, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items;
and transporting the corresponding central warehouse delivery items in the picking task to a picking groove corresponding to the picking task, transporting the corresponding inventory items in the picking task to the picking groove corresponding to the picking task through transportation equipment, and finishing the picking of the items in the picking task at the picking groove.
2. The method of item picking as recited in claim 1, wherein the step of transporting the corresponding center bin delivered item in the picking order to the picking chute corresponding to the picking order comprises: after receiving the articles transferred by the central bin, the logistics center judges whether the articles transferred by the central bin are the corresponding central bin delivered articles in the picking task, if so, the corresponding central bin delivered articles in the articles transferred by the central bin are transported to the picking slot corresponding to the picking task; and if not, storing the articles transferred to the central bin to a warehouse.
3. The method of sorting items as in claim 1, wherein the transportation device is a multi-level shuttle and the warehouse is a stereoscopic warehouse; the step of transporting the corresponding inventory item in the picking order to the picking slot corresponding to the picking order by the transporting device comprises:
determining the picking sequence of the inventory items according to the type and the quantity of the corresponding inventory items in the picking task, the storage position positions of the inventory items in the stereoscopic warehouse and the current position of the multi-layer shuttle vehicle;
and according to the picking sequence, transporting the corresponding inventory items in the picking tasks to the picking grooves corresponding to the picking tasks through the multi-layer shuttle car for picking.
4. The method of item picking as recited in claim 1, wherein the step of matching picking orders with picking slots of a workstation comprises:
mapping a plurality of picking tasks into feature vectors according to their item types;
clustering the plurality of picking tasks into clusters according to the feature vectors, wherein the number of the clusters is consistent with that of the workstations;
judging whether the number of picking tasks in the cluster is less than or equal to the number of picking slots of the workstation corresponding to the cluster;
and if so, respectively matching the picking tasks in the cluster with the picking grooves.
5. The item picking method according to claim 4, wherein prior to the step of mapping the plurality of picking tasks to feature vectors according to their item types, the item picking method further comprises: according to the hierarchical distribution of the workstations and the item types of the picking tasks, the picking tasks are clustered into a plurality of collection sheets, wherein the number of the collection sheets is consistent with the number of the hierarchical levels of the workstations, and each collection sheet comprises a plurality of picking tasks.
6. The item picking method according to claim 4, characterized in that after the picking slots of the workstations corresponding to the clusters are respectively matched with one intra-cluster picking task, the remaining intra-cluster picking tasks are placed into the pool to be allocated.
7. The item picking method according to claim 6, wherein whether an empty picking slot exists is judged, and if yes, the target picking task is determined to be matched with the empty picking slot from the pool to be allocated according to the degree of association of the item type, wherein the degree of association of the item type refers to the degree of association between the item type of the picking task in the pool to be allocated and the item type of the picking task in the cluster corresponding to the workstation where the empty picking slot exists.
8. An item picking device, comprising:
the matching module is used for matching the picking tasks with the picking grooves of the workstations, wherein the types of the items of the picking tasks are stock items and central warehouse delivery items;
the picking module is used for transporting the corresponding central warehouse delivery items in the picking task to a picking groove corresponding to the picking task, transporting the corresponding inventory items in the picking task to the picking groove corresponding to the picking task through the transporting equipment, and finishing picking of the items in the picking task at the picking groove.
9. A terminal, comprising:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 1-7.
10. A computer-readable medium, on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 1-7.
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