CN112070425B - Dispatching method of stock system based on multi-layer shuttle and double-speed chain - Google Patents
Dispatching method of stock system based on multi-layer shuttle and double-speed chain Download PDFInfo
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Abstract
The invention discloses a dispatching method of a stock system based on a multi-layer shuttle and a double-speed chain, which comprises the following steps: s1, the stock system supplements the stock to the sorting line, and according to the sorting order, a stock system pre-supplements the stock queue to the sorting line is generated. S2, a storage strategy of the stock system is formulated, order analysis is achieved, sales volume changes of brands in orders can be analyzed according to annual sales volume and monthly sales volume, the first n brands with large sales volume and stability are stored by a double-speed chain preferentially, other brands are stored in a multi-pass mode, the brand layout of the multi-pass and double-speed chain is planned, the priority of the multi-pass goods positions is planned based on SKU analysis, and single brand storage is achieved. And S3, the overhead warehouse supplements the stock to the stock system, and the real-time pre-replenishment queue according to the sorting line is realized according to the calculation result of the S1. The invention can effectively ensure the sequential replenishment of downstream sorting lines in time, reasonably allocate the storage strategy in the stock system, ensure the maximization of stock capacity utilization and system redundancy, and reduce the influence of the stock system on the upstream three-dimensional overhead warehouse.
Description
Technical Field
The invention relates to a dispatching method of a stock system based on a multi-layer shuttle and a double-speed chain, which is used for stock between storage and sorting in a cigarette distribution center and belongs to the technical field of tobacco distribution.
Background
In the tobacco industry of China, according to the requirements of national specialty laws, commercial distribution of cigarettes is the only way of cigarettes from factories to retailers. With the continued integration and optimization of tobacco industry sales, cigarette distribution centers have become an important part of the tobacco supply chain. Cigarette distribution centers are generally comprised of three important components, namely, warehousing, stocking, and sorting. The storage is to process the whole tray of cigarettes, the sorting is to process scattered cigarettes, and the stock preparation is an important conversion part between the tray and the box, so that the conversion between the tray and the box is realized, and meanwhile, the stock supplementing requirement of the downstream production link is met.
At present, in a cigarette distribution center, various stock modes exist, including a gravity type, a power type, a miniload type and the like. The stock mode based on the multi-layer shuttle and the double-speed chain is a main stock mode in future middle and large-sized distribution center design due to small occupied area and high processing capacity. However, since the stock mode based on the multi-layer shuttle and the double-speed chain involves more equipment, and meanwhile, the downstream sorting line has higher requirements on the tobacco of the delivered goods, the tobacco can be delivered in time, strict sorting is required, and in addition, the system also needs to have certain redundancy, so that the mode system is more complex.
In view of the foregoing, it is necessary to provide a scheduling method capable of effectively solving the above-mentioned requirements, and improving the access efficiency based on the multi-layer shuttle and the double-speed chain stock mode, and simultaneously meeting the sorting and redundancy requirements of the downstream sorting line on the cigarettes.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a dispatching method of a stock system based on a multi-layer shuttle and a double-speed chain, which solves the problem of improving the access efficiency of the stock mode based on the multi-layer shuttle and the double-speed chain and simultaneously meets the sorting and redundancy requirements of downstream sorting lines on cigarettes.
In order to solve the technical problems, the invention adopts the following technical scheme: a dispatching method of a stock system based on a multi-layer shuttle and a double-speed chain comprises the following steps:
step S1, a stock system supplements goods to a sorting line, namely, a multi-layer logic structure of the sorting line is defined in an abstract mode, the sorting line requests for a replenishment area, sorting is conducted to basic information such as replenishment limiting information, storage areas of physical areas of the sorting line and the like, and a stock queue of the stock system to the sorting line is generated according to a sorting order and a composite multi-layer logic replenishment strategy;
step S2, a storage strategy of the stock system is formulated, so that order analysis is realized, sales change of brands in the order can be analyzed according to annual sales and monthly sales, the first n brands with large sales and stability are stored by adopting a double-speed chain preferentially, the other brands adopt multi-pass storage, the brand layout of multi-pass and double-speed chains is planned, and after SKU analysis, the priority of multi-pass goods positions and single-brand storage are planned;
step S3, the overhead warehouse supplements the stock system with the stock: according to the calculation result of the step S1, realizing real-time pre-replenishment queue according to sorting lines, combining brand stock, goods space service condition, warehouse-in and warehouse-out flow of a stock system, and calculating pre-replenishment queue from an overhead warehouse to the stock system
According to a further technical scheme, the step S1 comprises the following steps:
step S11, defining a sorting line area logic relationship, and can be multi-layer logic. The PA1 is a first sorting line main replenishment line and belongs to a main logic area; the PA1_1 and the PA1_2 are the logic areas of the replenishment line; PA11, PA12, PA13, PA14 are the physical areas of the restocking line, which are associated with the actual sorting sub-lines, sorting units.
In step S12, upper request areas of the respective restocking areas are defined, and one restocking area may correspond to a plurality of request areas.
Step S13, defining the replenishment limiting information of the sorting channel, such as setting brands, setting upper and lower limits of the channel and setting replenishment numbers of the channel.
Step S14, calibrating brand inventory information of each storage area of the sorting line.
Step S15, generating a pre-replenishment queue (HrgvOutQueue) from the multi-layer shuttle to the sorting line according to a strategy.
Step S16, returning to the replenishment request queue of the sorting line [ HrgvOutQueue ].
According to a further technical scheme, the step S2 comprises the following steps:
step S21, according to the turnover information of the order SKU (the SKU (stock keeping unit) stock quantity unit refers to the stock in-out metering unit, and SKU is a necessary method for logistics management of a large chain supermarket (distribution center)), the storage brands of the double-speed chain and the multiple-penetration goods space are reasonably set and the goods preparation frequency is set.
Step S22, combining SKU turnover information such as brand delivery amount, brand delivery frequency, reasonably planning a storage structure of the multi-penetrating goods places, and determining the delivery priority level of the multi-penetrating goods places. According to the SKU turnover information ABC classification (so-called ABC classification is classified as popular and high-inventory turnover rate brands are classified as class A, and the stagnant and low-inventory turnover rate brands are classified as class C, and the intermediate brands are class B products). The cargo space priority relationship of fig. 6 is obtained, and the cargo space plan under ABC classification.
Step S23, determining a delivery position according to the multi-pass sorting line pre-replenishment queue and the multi-pass position delivery priority set in the step S22, and generating task information of multi-pass sorting line replenishment
Step S24, according to the pre-replenishment queue of the overhead warehouse to the stock system, the warehouse entry position is determined according to the set warehouse entry priority of the stock system, and task information of replenishing the overhead warehouse to the stock system is generated.
According to a further technical scheme, the step S3 comprises the following steps:
step S31, presetting a corresponding relation between the sorting line and the stock system. The system can be set to a mode that a stock system corresponds to a plurality of sorting lines at the same time, and can also be set to a mode that one sorting line corresponds to one roadway of the stock system.
Step S32, setting upper and lower limits of stock of each brand of the stock system through order analysis in advance, and supplementing the stock quantity for a single time. The brand sales were the first 20 brands, the upper limit was set to 60, the lower limit was set to 30, and the single replenishment amount was set to 30.
Step S33, calculating the queue (HrgvInquese) of the overhead warehouse for replenishing the stock system according to the pre-replenishment queue (HrgvOuquese) of the stock system for the sorting line and the available cargo space quantity of the stock system in combination with the corresponding relation between the sorting line and the stock system
And step S34, driving the elevated warehouse to generate a warehouse-out task according to a queue (HrgvInquese) for replenishing the stock system by the elevated warehouse. The flow control is needed for the delivery of the overhead warehouse, the delivery task realizes the roadway equipartition of the trays at the delivery station and the destacking station in the roadway, the flow of the delivery destacking tray is controlled, and when the delivery tray exceeds a limiting threshold value, the delivery of the new delivery destacking task is stopped. The stock system consists of a plurality of roadways, and the tasks of replenishing goods from an overhead warehouse to a cache realize brand equipartition in the roadways and task equipartition; and brand sharing and task sharing are also realized between the same layers in the same roadway.
Compared with the prior art, the dispatching method of the stock system based on the multi-layer shuttle and the double-speed chain can effectively ensure the sequential replenishment of downstream sorting lines, reasonably allocate the storage strategy in the stock system, ensure the maximization of stock capacity utilization and system redundancy, and reduce the influence of the stock system on an upstream three-dimensional overhead warehouse.
Drawings
FIG. 1 is a general flow of the stock system of the present invention.
Fig. 2 is a schematic diagram of a restocking system of the present invention supplying a restocking line with a restocking process.
FIG. 3 is a schematic diagram of a storage strategy flow of the stock system of the present invention.
FIG. 4 is a schematic diagram of the process of replenishing a stock system with a three-dimensional overhead warehouse according to the present invention.
Fig. 5 is a schematic diagram of a sorting and replenishment line multi-layer logic structure according to the present invention.
Fig. 6 is a schematic diagram of a cargo space allocation of the stock system of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1, in this embodiment, a dispatching method of a stock system based on a multi-layer shuttle and a double-speed chain is used for reasonably utilizing the storage positions of the stock system and meeting the real-time sequential replenishment needs of downstream sorting lines.
The dispatching method of the stock system based on the multi-layer shuttle and the double-speed chain comprises the following steps of:
and S1, the stock system supplements the sorting line. The method realizes the description of the replenishment algorithm of order sorting, and the original sorting line multilayer logic structure mode can effectively solve the replenishment strategy under various sorting line layout modes, can furthest improve the utilization rate of sorting replenishment conveying equipment, and simultaneously furthest reduce the problem of mutual congestion among intersections of the replenishment equipment. And the flow of the replenishment to the sorting line can be flexibly controlled.
Step S2, the stock system stores the strategy. The method realizes order analysis, reasonably plans the brand layout of the multi-pass and double-speed chains, and reasonably plans the priority of the multi-pass goods space, single brand storage amount and the like based on SKU analysis. The ex-warehouse efficiency of the stock system can be improved to the greatest extent.
And S3, supplementing the stock to the stock system by the three-dimensional overhead warehouse. The real-time pre-replenishment queue of the stock system is calculated according to the sorting line and the brand stock, the warehouse-in and warehouse-out flow of the stock system. The system can be split into a stock mode of a tunnel to a sorting line, so that the flexibility of the stock system is greatly improved, the influence degree of equipment faults of the stock system on the whole sorting system is reduced, and the condition of reduced stock supplementing efficiency caused by smoke shortage is minimized.
Referring to fig. 2, specifically, the step S1 includes the following steps:
step S11, defining a sorting line area logic relationship, wherein multi-layer logic is shown in FIG. 5; the sorting and replenishing area is defined as a sorting line and a main logic area (PA 1, PA2 …), wherein the main logic area is divided into two sub-logic areas (PA 1_1, PA 1-2), and the sub-logic areas are divided into four physical replenishing areas (PA 11, PA12, PA13, PA 14);
in step S12, upper request areas of each restocking area are defined, and one restocking area may correspond to a plurality of request areas, as shown in table 1.
TABLE 1 correspondence table between sorting and replenishing areas and upper request areas
| Source region | Source region storage area | Request area | Request area storage area | Service type |
| L0000WS | L0000WS | BH_Hrgv | BH_Hrgv | Warehouse restocking to high-pass system |
| BH_Hrgv | BH_Store | PA11 | PA11 | High-penetration sorting line goods supplementing |
| BH_Hrgv | BH_Store | PA12 | PA12 | High-penetration sorting line goods supplementing |
| BH_Hrgv | BH_Store | PA13 | PA13 | High-penetration sorting line goods supplementing |
| BH_Hrgv | BH_Store | PA14 | PA14 | High-penetration sorting line goods supplementing |
| BH_Hrgv | BH_Store | PA21 | PA21 | High-penetration sorting line goods supplementing |
| BH_Hrgv | BH_Store | PA22 | PA22 | High-penetration sorting line goods supplementing |
| BH_Hrgv | BH_Store | PA23 | PA23 | High-penetration sorting line goods supplementing |
| BH_Hrgv | BH_Store | PA24 | PA24 | High-penetration sorting line goods supplementing |
In table 1: the table defines the relationship between the source and the request regions and the type of traffic used between the two regions. L000WS represents the overhead warehouse area and the overhead warehouse area, and bh_hrgv represents the stock area. Bh_store represents stock storage, PA11 represents sort line one sub-line storage, and PA21 represents sort line two sub-line storage.
For example: the source area [ L0000WS ], the request area [ BH_Hrgv ] represents that the stock area [ BH_Hrgv ] is a region requiring replenishment, and the region requests replenishment from the elevated stock area [ L000WS ].
Step S13, defining the replenishment limiting information of the sorting channel, such as setting brands, setting upper and lower limits of the channel and setting replenishment numbers of the channel.
Step S14, calibrating brand inventory information of each storage area of the sorting line. The method comprises the steps of processing replenishment tasks for replenishing the respective physical areas, completing task states, and adding the inventory to the corresponding physical storage areas. The sorting line is processed to complete sorting tasks without deducting inventory, and the inventory is deducted from a corresponding physical storage area. With each main line [ PA1] as a root node, recursively calibrating the current inventory of each brand of each region according to the incomplete request. For example: PA11 available inventory = upper lane limit-current inventory of PA11 + PA11 outstanding incoming sort line restocking requests.
Step S15, generating a pre-replenishment queue (HrgvOutQueue) from the multi-layer shuttle to the sorting line according to a strategy. Comprises obtaining the unfinished sorting task list UnFinishTaskList of the sorting line and sorting according to the ascending sorting sequence number as shown in the table 2.
Table 2 unfinished sort task list
| Task number | Sorting sub-line | Sorting main line | Sequence number | Brand coding | Sorting quantity | Region(s) | Sorting unit |
| 201907110001 | Sortline14 | Sortline10 | 1 | 530246 | 1 | PA14 | U14_01_007 |
| 201907110001 | Sortline14 | Sortline10 | 1 | 440237 | 2 | PA14 | U14_01_008 |
| 201907110001 | Sortline13 | Sortline10 | 1 | 420114 | 3 | PA13 | U13_01_001 |
| 201907110001 | Sortline13 | Sortline10 | 1 | 530232 | 2 | PA13 | U13_01_005 |
| 201907110001 | Sortline12 | Sortline10 | 1 | 440266 | 1 | PA12 | U12_01_008 |
| 201907110001 | Sortline12 | Sortline10 | 1 | 530208 | 1 | PA12 | U12_01_009 |
| 201907110001 | Sortline11 | Sortline10 | 1 | 440242 | 3 | PA11 | U11_01_003 |
| 201907110001 | Sortline11 | Sortline10 | 1 | 530133 | 1 | PA11 | U11_01_006 |
| 201907110002 | Sortline14 | Sortline10 | 2 | 530246 | 1 | PA14 | U14_01_007 |
| 201907110002 | Sortline14 | Sortline10 | 2 | 440237 | 2 | PA14 | U14_01_008 |
| 201907110002 | Sortline13 | Sortline10 | 2 | 420114 | 3 | PA13 | U13_01_001 |
| 201907110002 | Sortline13 | Sortline10 | 2 | 530232 | 2 | PA13 | U13_01_005 |
| 201907110002 | Sortline12 | Sortline10 | 2 | 440266 | 1 | PA12 | U12_01_008 |
| 201907110002 | Sortline12 | Sortline10 | 2 | 530208 | 1 | PA12 | U12_01_009 |
| 201907110002 | Sortline11 | Sortline10 | 2 | 440242 | 3 | PA11 | U11_01_003 |
| 201907110002 | Sortline11 | Sortline10 | 2 | 530133 | 1 | PA11 | U11_01_006 |
In table 2: to complete the sorting task column, the sorting queue of sorting tasks for which each sub-line of each sorting line is not sorted to completion is described in detail. The replenishment strategy calculates a prerequisite input condition for the sorting line pre-replenishment queue.
If 201907110001 is sorting task number, sortline10 is main sorting line number, sortline14 is sub-sorting line number, serial numbers 1 and 2 are the order of sorting task execution, and the areas PA14 and PA13 represent storage areas of sorting lines and correspond to the request storage areas of table 1. The sorting unit u14_01_007 represents cigarette outlet channels of the corresponding brands of the task and is used for representing the cigarette outlet sequence of the brands in the task.
And (3) circulating a sorting task list UnfirishTaskList, taking a first sorting task, acquiring available inventory ITEM1STORE of a replenishment area corresponding to a brand [ ITEM1] in the sorting task, calculating whether the replenishment ITEM1 STORE=ITEM 1 STORE+sorting quantity (parts) is needed, rounding down the ITEM1STORE to obtain ITEMFILL1, and adding a replenishment request of the brand corresponding to the sorting task into a replenishment queue [ HrgvOutQuue ] if the ITEMFILL1>0, and circulating all the brands corresponding to the sorting task. If ITEMFILL1< =0, no restocking queue is added. And continuing to calculate the next sorting task until all brands of all sorting tasks are processed. The upper restocking area of each request is determined by looping through S152 the restocking queue for each physical area [ hrgv out queue ] that has been acquired. And returning the [ HrgvOutQuue ] to the upper logic region for processing through the acquired replenishment queues [ HrgvOutQuue ] of the physical regions at S153, initializing the [ HrgvOutQuue ] queue sequence according to the logic structure defined in the basic data, filling each logic branch in sequence, and filling the logic region into each replenishment request of the [ HrgvOutQuue ].
Step S16, returning to the replenishment request queue of the sorting line [ HrgvOutQueue ].
Referring to fig. 3, specifically, the step S2 includes the following steps:
and S21, reasonably setting and distributing storage brands of the double-speed chain and the multiple-penetration goods positions according to the turnover information of the order SKUs, and preparing the goods frequency. Order SKU turnover information is acquired first and analyzed. The ABC classification of brands and the brand sales ratio are obtained. And setting the upper storage limit and the lower storage limit of brands in the stock system according to the ABC class and the sales volume ratio. The order sales analysis summary is shown in table 3.
In table 3: the method is characterized in that the method is based on a certain day order, and the obtained cigarette brand A\B\C classification result, the brand delivery amount, the delivery frequency and the brand upper and lower limit reasonable setting values are analyzed.
From table 3, it is known that the first n brands with the largest sales are stored on the speed chain, and the rest of the brands are stored in multiple passes. If the single brand sales exceeds 20%, the brand may be set as a double speed chain dual channel, with the corresponding last brand moved to multi-pass storage.
TABLE 3 order sales analysis summary table
| Sequence number | Brand coding | Brand name | Total sales | ABC classification | Take up the proportion of orders | Upper limit of | Lower limit of |
| 1 | 440234 | Double happiness (Soft classical) | 24499 | A | 0.141 | 60 | 30 |
| 2 | 440242 | Double happiness (classical hard) | 9710 | A | 0.056 | 60 | 30 |
| 3 | 430201 | Cottonrose hibiscus king (hard) | 9616 | A | 0.055 | 60 | 30 |
| 4 | 440237 | Double happiness (hard) | 9512 | A | 0.055 | 60 | 30 |
| 5 | 420114 | Yellow crane tower (Soft) | 4831 | A | 0.028 | 50 | 30 |
| 6 | 530208 | Red plum (Soft yellow) | 4345 | A | 0.025 | 50 | 30 |
| 7 | 530246 | Hongtaishan (hard) | 3986 | B | 0.023 | 50 | 30 |
| 8 | 530133 | Cloud tobacco (purple) | 3923 | B | 0.023 | 50 | 30 |
| 9 | 530232 | Yuxi (Soft) | 3882 | B | 0.022 | 50 | 30 |
| 10 | 530245 | Hongtaishan (Soft) | 3753 | B | 0.022 | 50 | 30 |
| 11 | 440237 | Double happiness (Soft blue) | 3626 | B | 0.021 | 50 | 30 |
| 12 | 350111 | Seven wolves (Haoqing) | 3506 | B | 0.020 | 50 | 30 |
| … | … | … | … | … | … | … | … |
| 40 | 510109 | Jiaozi (a kind of Chinese character) | 954 | C | 0.005 | 35 | 30 |
| 41 | 450323 | Real dragon (beautiful) | 835 | C | 0.005 | 35 | 30 |
| 42 | 340175 | Huangshan (bumblebee) | 798 | C | 0.005 | 35 | 30 |
| 43 | 110111 | Middle and south sea (5 m) | 797 | C | 0.005 | 35 | 30 |
| 44 | 511228 | Prosperity brought by the dragon and the phoenix | 796 | C | 0.005 | 35 | 30 |
| 45 | 350103 | Seven wolves (Red) | 749 | C | 0.04 | 35 | 30 |
| 46 | 320107 | Nanjing (Red) | 728 | C | 0.04 | 35 | 30 |
| … | … | … | … | … | … | … | … |
Step S22, combining SKU turnover information (shown in Table 3), such as: the brand delivery amount, the brand delivery frequency, the storage structure of the multi-penetrating goods places is reasonably planned, and the delivery priority level of the multi-penetrating goods places is determined. The cargo space priority assignment is combined with the ABC classification according to the SKU turnover information ABC already analyzed in S21. And obtaining a cargo space priority relation and cargo space planning under ABC classification.
Step S23, according to the pre-replenishment queue of the stock system to the sorting line, the delivery position is determined according to the multi-penetration position delivery priority set in the step S22, and the task information of multi-penetration replenishment to the sorting line is generated. And obtaining the out-of-stock brand, if the brand is a double-speed chain storage and only one double-speed chain channel is allocated, directly generating the out-of-stock task from the double-speed chain. If the brand speed-doubling chain is distributed with two channels, the channel with the least amount of delivery tasks and the most stock is delivered first. And if the brands are stored in the multi-pass way, summarizing the total number of the delivery tasks of each roadway, equally dividing the tasks on the roadway layer, and determining the roadway most suitable for delivery. After the tunnel is determined, the total number of the delivery tasks of each layer in the tunnel is summarized, and the tasks are equally divided in the layer number. The layer most suitable for ex-warehouse is determined. If the relation between the stock system lane and the sorting line is 1 to 1, only the corresponding lane can be found, and the step S232 is skipped. And after the tunnel and the layer are determined, determining the warehouse outlet position according to the priority determined in the step S22.
And step S24, determining a warehouse entry position according to the preset multi-pass position warehouse entry and exit priority and generating task information of the overhead warehouse for supplementing the stock to the stock system according to the pre-supplementing queue of the overhead warehouse for the stock system. And obtaining an outgoing brand, and if the brand is a double-speed chain storage and only one double-speed chain channel is allocated, directly generating a task of entering the double-speed chain library. If the brand speed-doubling chain is assigned two channels, the amount assigned to each channel is calculated per channel capacity. And if the brands are stored in the multi-pass way, firstly summarizing the total number of the warehouse-in tasks of each roadway, carrying out equally dividing on the brands and equally dividing on the tasks on the roadway according to the capacity proportion of the brands among the roadways, and determining the roadway most suitable for warehouse-in. After the tunnel is determined, summarizing the total number of the warehouse-in tasks of each layer in the tunnel, carrying out brand equally dividing and task equally dividing on the layer number according to the capacity proportion of brands in each layer in the tunnel. The layer most suitable for ex-warehouse is determined. If the relation between the lanes of the stock system and the sorting line is 1 to 1, the brand warehouse entry distributes the quantity of each lane to the corresponding lane according to the request calculated in the step S3. After the warehouse-in quantity of each roadway is determined, brand sharing and task sharing are carried out on the layer. And after the tunnel and the layer are determined, determining the warehouse entry cargo space according to the priority determined in the step S22.
Referring to fig. 4, specifically, the step S3 includes the following steps:
step S31, presetting a corresponding relation between the sorting line and the stock system. The system can be set to a mode that a stock system corresponds to a plurality of sorting lines at the same time, and can also be set to a mode that one sorting line corresponds to one roadway of the stock system.
Step S32, setting upper and lower limits of stock of each brand of the stock system through order analysis in advance, and supplementing the stock quantity for a single time. The brand sales were the first 20 brands, the upper limit was set to 60, the lower limit was set to 30, and the single replenishment amount was set to 30.
Step S33, calculating a queue (HrgvInqueue) for replenishing the overhead warehouse to the stock system according to the stock system to pre-replenish the stock queue (HrgvOuequence) to the sorting line and the corresponding relation between the sorting line and the stock system by combining the available cargo space quantity. Brand inventory information for the multiple penetration cargo area is calibrated. The multi-pass inventory Store is identified by BH Store. Acquiring a restocking system, and adding an inventory to a corresponding multiprocessing stock storage area (BH_store) after the restocking task (denoted by Instore) is executed; acquiring a restocking system, and performing a restocking task (represented by [ OutStore ]), wherein the inventory is deducted from a corresponding multiprocessing stock storage area [ BH_Store ]; acquiring an executing request (represented by [ InReqStore ]) without restocking multi-threading, and adding inventory to a corresponding multi-threading stock storage area [ BH_Store ]; acquiring an executing request (represented by [ OutReqStore ]) without restocking out multiple wears, and deducting inventory from a corresponding multiple-wear stock storage area [ BH_Store ]; calculate the real inventory of the multipass stock area [ bh_store ] =currstore+instore+inreqstore-OutStore-OutReqStore. And calculating the current allocable warehousing flow [ Inslow ] = system rated warehousing flow-current warehousing task amount-request amount of the non-generated warehousing task. When the allocable warehousing flow rate [ Inlow ] >0, the method proceeds to step S11 to allocate spare goods according to the needs of the sorting line, and when the allocable warehousing flow rate < = 0, the method proceeds to step S13.
Initializing pre-replenishment queue information, traversing the delivery request information of the delivery task which is not generated in the stock area at present in sequence, and continuously traversing the next delivery task request information when the actual stock-1 of the stock area is=0 (lower limit of stock storage according to the requirement). When the stock area actual stock= -1, the stock area actual stock=0 (stock on demand lower limit), the allocable stock flow=allocable stock flow-1, and when the allocable stock flow <0, the process goes to step S334. When the allocable warehouse-in flow > =0, checking whether the pre-replenishment information of the brand exists in the pre-replenishment queue, and if not, adding a row of pre-replenishment information with the brand pre-replenishment number of 1 at the tail end of the pre-replenishment queue. If yes, the last piece of pre-compensation information of the brand in the pre-compensation queue is found, and the pre-compensation quantity of the pre-compensation information is compared with the single maximum compensation quantity of the brand. When the precharge number < the single maximum precharge number, the precharge number=precharge number+1, the next shipment request information is continuously processed. When the pre-compensation number > = the single maximum pre-compensation number, adding one piece of pre-compensation information of information at the tail end of the pre-compensation queue, wherein the pre-compensation number is 1. Continuing to process the next outgoing request information. When all the outbound request information of the non-generated tasks are processed, the process goes to step S334. In addition, the lower limit of the stock warehouse according to the requirement can be different lower limits according to the frequency of the requirement after ABC class classification is carried out according to the total brand amount of the sorting order on the same day.
Initializing the replenishment queue information, reinitializing the distributable warehousing flow information, traversing the pre-replenishment queue information, correcting the pre-replenishment information, and recording the pre-replenishment quantity=the single replenishment lower limit-the pre-replenishment quantity and the single replenishment lower limit when the pre-replenishment quantity in the pre-replenishment queue information is smaller than the single replenishment lower limit of the brand. Traversing the corrected pre-replenishment queue, when the allocable warehousing flow rate-pre-replenishment quantity > = 0, allocating the warehousing flow rate = allocable warehousing flow rate-pre-replenishment quantity, adding the row of pre-replenishment information into the replenishment queue, correcting the brand actual stock to be = actual stock + super-replenishment quantity, and when the allocable warehousing flow rate-pre-replenishment quantity <0, allocating the warehousing flow rate = 0, and jumping to step S335. When the pre-replenishment queue is traversed, the process jumps to step S335.
The sorting line prepares the stock conventionally, and when the allocable warehouse entry flow < =0, jumps to step S3334. When the allocable warehousing flow is more than 0, the actual inventory and the upper and lower limits of the brand are related according to the brand, the data are traversed according to the brand coding sequence, the actual inventory > =the lower limits of the inventory, the brand is skipped, the conventional stock is not carried out, and the conventional stock of the sorting line is started according to the actual inventory < the lower limits of the inventory. When the inventory lower limit-actual inventory < = single restocking lower limit, the pre-restocking quantity = single restocking lower limit. When the inventory lower limit-actual inventory > single restocking lower limit and when the inventory lower limit-actual inventory < = single restocking upper limit, the pre-restocking quantity = single restocking upper limit. When the inventory lower limit-actual inventory > single restocking upper limit, the restocking number = (inventory lower limit-actual inventory)/single restocking upper limit, restocking quantity = single restocking upper limit. Allocable binning flow = allocable binning flow-pre-replenishment number, when allocable number >0, adding pre-replenishment information to the end of replenishment queue. When the allocable number <0, step S336 is skipped. When all brands are traversed, a replenishment request queue [ HrgvInqueue ] is returned.
And step S34, driving the elevated warehouse to generate a warehouse-out task according to a queue (HrgvInquese) for replenishing the stock system by the elevated warehouse. The flow control is needed for the delivery of the overhead warehouse, the delivery task realizes the roadway equipartition of the trays at the delivery station and the destacking station in the roadway, the flow of the delivery destacking tray is controlled, and when the delivery tray exceeds a limiting threshold value, the delivery of the new delivery destacking task is stopped. The stock system consists of a plurality of roadways, and the tasks of replenishing goods from an overhead warehouse to a cache realize brand equipartition in the roadways and task equipartition; and brand sharing and task sharing are also realized between the same layers in the same roadway. The method comprises the steps that an overhead warehouse obtains a cache replenishment request queue [ HrgvInqueue ], a first request is obtained from the replenishment request queue, the inventory of the overhead warehouse is judged, and if the inventory exists, a warehouse-out task of the overhead warehouse is generated. If the stock is not available, the replenishment request is automatically canceled. If the stock exists, an overhead stock delivery task is generated, the overhead stock is equally divided in an overhead stock roadway, and the overhead stock is equally divided on an overhead stock unstacking platform. If the warehouse-out tray is not completely disassembled, the task is controlled to be generated to a destacking station capable of returning to the warehouse. The warehouse-out tray arrives at a station, and destacking information [ brand, tray number, destacking number, stack number ] is issued to the equipment; and simultaneously generating a request for entering the stock system, wherein the request type is InHrgvRequest. And the stock system generates a stock supplementing task of the overhead warehouse to the stock system according to the request of entering the stock system generated in the step S344 and the strategy formulation in the step S2, and determines the target position of the cigarette.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; while the invention has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the techniques described in the foregoing embodiments, or equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (3)
1. The dispatching method of the stock system based on the multi-layer shuttle and the double-speed chain is characterized by comprising the following steps of:
step S1, a stock system supplements goods to a sorting line, a multi-layer logic structure of the sorting line is defined in an abstract mode, sorting channels supplement goods limiting information is requested by the sorting line, stock area basic information of each physical area of the sorting line is used for generating a pre-supplement queue of the stock system to the sorting line according to a sorting order and a composite multi-layer logic supplement strategy; the method specifically comprises the following steps:
step S11, defining a sorting line area logic relationship as multi-layer logic; PA1 is a sorting line main replenishment line, belonging to a main logic area; the PA1_1 and the PA1_2 are the logic areas of the replenishment line; PA11, PA12, PA13, and PA14 are restocking line physical areas that are associated with actual sorting sub-lines, sorting units;
step S12, defining upper layer request areas of each replenishment area, wherein one replenishment area can correspond to a plurality of request areas;
step S13, defining replenishment limiting information of a sorting channel, wherein the replenishment limiting information comprises a brand setting, upper and lower limit setting and replenishment number setting of the channel;
step S14, calibrating brand inventory information of each storage area of the sorting line;
step S15, generating a pre-replenishment queue HrgvOuequence from the multi-layer shuttle to the sorting line according to a strategy;
step S16, returning to a pre-replenishment queue HrgvOuquoue of the sorting line;
step S2, a storage strategy of a stock preparation system is formulated, sales volume changes of brands in orders are analyzed according to the order volume and the month sales volume, the first n brands with large sales volume and stability are stored by adopting a double-speed chain preferentially, other brands are stored by adopting a multi-pass storage, the brand layout of the multi-pass and double-speed chain is planned, and after SKU analysis, the priority of the multi-pass goods positions and the single-brand storage are planned;
and S3, the overhead warehouse supplements the goods to the goods preparation system, and according to the calculation result of the step S1, the real-time pre-supplement queue according to the sorting line is realized, and the pre-supplement queue of the overhead warehouse to the goods preparation system is calculated by combining the brand stock of the goods preparation system, the use condition of the goods space, the in-out warehouse flow.
2. The method for dispatching a stock system based on a multi-layer shuttle and a double speed chain according to claim 1, wherein the step S2 comprises the steps of:
step S21, according to order SKU turnover information, storage brands of double-speed chains and multiple penetrating goods positions are reasonably set and distributed, and the goods preparation frequency is set;
step S22, combining SKU turnover information, including brand delivery amount and brand delivery frequency, reasonably planning a storage structure of multiple penetrating goods places, and determining the delivery priority level of the multiple penetrating goods places; classifying according to the SKU turnover information ABC analyzed in the step S21, and combining the cargo space priority allocation with the ABC classification; acquiring a cargo space priority relation and cargo space planning under ABC classification;
step S23, determining a delivery position according to the multi-pass sorting line pre-replenishment queue and the multi-pass position delivery priority set in the step S22, and generating task information of multi-pass sorting line replenishment;
and step S24, determining a warehouse entry position according to the preset multi-pass position warehouse entry and exit priority and generating task information of the overhead warehouse for supplementing the stock to the stock system according to the pre-supplementing queue of the overhead warehouse for the stock system.
3. The method for dispatching a stock system based on a multi-layer shuttle and a double speed chain according to claim 1, wherein the step S3 comprises the steps of:
step S31, presetting a corresponding relation between a sorting line and a stock system; setting a stock system to simultaneously correspond to a plurality of sorting lines, or setting a mode that one sorting line corresponds to one roadway of the stock system;
step S32, setting the upper and lower limits of the stock of each brand and the single replenishment quantity in the multi-pass freight zone through order analysis in advance; the brand sales volume is the brand of the front 20, the upper limit is set to be 60, the lower limit is set to be 30, and the single goods supplementing volume is set to be 30;
step S33, calculating a replenishment request queue HrgvInequence for replenishing the stock of the overhead warehouse to the stock system according to the corresponding relation between the stock system and the sorting line and the relation between the sorting line and the stock system;
step S34, driving the elevated warehouse to generate a warehouse-out task according to a replenishment request queue HrgvInquese for replenishing cargoes to a stock system by the elevated warehouse; the method comprises the steps that flow control is needed for the delivery of an overhead warehouse, the delivery task is divided equally in a roadway and an unstacking station tray, the delivery unstacking tray flow is controlled, and when the delivery tray exceeds a limiting threshold value, the delivery unstacking task is suspended; the stock system consists of a plurality of roadways, and the tasks of replenishing goods from the overhead warehouse to the cache realize brand equipartition and task equipartition in the roadways; and brand sharing and task sharing are also realized between the same layers in the same roadway.
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