CN112070425A - Dispatching method of stock system based on multilayer shuttle and double-speed chain - Google Patents
Dispatching method of stock system based on multilayer 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 multilayer shuttle and a double-speed chain, which comprises the following steps: and S1, the stock system replenishes the sorting line, and according to the sorting orders, a stock system pre-replenishment queue to the sorting line is generated. S2, a stock system storage strategy is formulated, order analysis is achieved, the sales volume change of the brands in the order can be analyzed according to annual sales volume and monthly sales volume, the former n brands with large and stable sales volume are stored preferentially by adopting a speed doubling chain, the rest brands are stored by adopting a multi-pass mode, the brand layout of the multi-pass and speed doubling chains is planned, and the priority of the multi-pass positions and the storage volume of the single-brand are planned based on SKU analysis. And S3, the elevated warehouse replenishes the stock system, and the real-time pre-replenishment queue according to the sorting line is realized according to the calculation result of S1. The invention can effectively ensure timely and sequential replenishment to a downstream sorting line, reasonably allocate storage strategies in the stock system, ensure maximization of storage capacity utilization and system redundancy, and reduce the influence of the stock system on an upstream three-dimensional elevated warehouse.
Description
Technical Field
The invention relates to a dispatching method of a stock system based on a multilayer shuttle and a double-speed chain, which is used for stock between warehousing 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 the national monopoly, commercial distribution of cigarettes is the only way for cigarettes from factories to retail stores. 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 generally consist of three important parts, namely warehousing, stocking and sorting. The storage is to process the whole tray of the cigarettes, the sorting is to process the bulk cigarettes, and the stock is an important conversion part between the tray and the part box, so that the conversion between the tray and the part box is realized, and the replenishment requirement of a downstream production link is met.
At present, in a cigarette distribution center, a plurality of 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 mainstream stock mode in the future design of medium and large distribution centers due to small floor area and high processing capacity. However, the stock preparation mode based on the multilayer shuttle and the double-speed chain involves more equipment, and meanwhile, the downstream sorting line has higher requirement on ex-warehouse cigarette pieces, so that ex-warehouse can be timely carried out, strict sequencing is required, and the system also needs to have certain redundancy, so that the mode system is more complex.
In view of the above, there is a need for a dispatching method that can effectively solve the above-mentioned requirements, and can improve the access efficiency based on the multi-layer shuttle and the double-speed chain stock mode, and simultaneously satisfy the requirements of sorting and redundancy of cigarette pieces for the downstream sorting line.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a dispatching method of a stock system based on a multilayer shuttle and a double-speed chain, which solves the problem of improving the access efficiency based on a stock mode of the multilayer shuttle and the double-speed chain and simultaneously meets the requirements of sorting and redundancy of cigarette pieces by a downstream sorting line.
In order to solve the technical problems, the invention adopts the following technical scheme: a dispatching method of a stock system based on a multilayer shuttle and a double-speed chain comprises the following steps:
s1, the stock system replenishes to the sorting line, wherein the multilayer logic structure of the sorting line is abstractly defined, the sorting line requests for replenishing areas, the sorting is communicated with replenishing limit information, the stock areas of each physical area of the sorting line and other basic information generate a stock system pre-replenishing queue to the sorting line according to a composite multilayer logic replenishing strategy according to sorting orders;
step S2, preparing a stock system storage strategy, namely formulating the stock system storage strategy to realize analysis according to an order, analyzing the sales volume change of brands in the order according to annual sales volume and monthly sales volume, preferentially adopting a double-speed chain for storage, preferentially adopting multi-penetration storage for other brands, planning the brand layout of the multi-penetration and double-speed chain, and planning the priority of a plurality of penetration positions and the storage amount of single brands after SKU analysis;
step S3, the elevated warehouse replenishes the stock system: according to the calculation result of the step S1, the real-time pre-replenishment queue according to the sorting line is realized, and the pre-replenishment queue from the overhead warehouse to the stock system is calculated by combining the brand stock of the stock system, the use condition of the goods space and the flow of entering and leaving the warehouse
In a further technical scheme, the step S1 includes the following steps:
and step S11, defining the logic relation of sorting line areas, and realizing multi-layer logic. PA1 main replenishment line of the first sorting line, belonging to the main logic area; PA1_1 and PA1_2 are replenishing line logic areas; PA11, PA12, PA13 and PA14 are physical areas of the replenishment line, and the areas are related to the actual sorting sub-line and sorting machine set.
In step S12, upper layer request areas of each replenishment area are defined, and one replenishment area may correspond to a plurality of request areas.
And step S13, defining the replenishment limit information of the sorting channel, such as setting brand, setting upper and lower limits of the channel, and setting replenishment number of the channel.
And step S14, calibrating brand inventory information of each storage area of the sorting line.
Step S15, generate a pre-replenishment queue (HrgvOutQueue) of the multi-layer shuttle to sort line according to the policy.
Step S16, return the replenishment request queue [ HrgvOutQueue ] of the sorting line.
In a further technical scheme, the step S2 includes the following steps:
step S21, reasonably setting storage brands and stock frequencies for distributing double-speed chains and multiple goods passing locations according to turnover information of order SKU (so-called SKU (stock keeping unit) stock quantity unit, which is a necessary method for logistics management of large-scale chain supermarkets (distribution centers).
And step S22, reasonably planning the storage structure of the multiple goods passing positions by combining SKU turnover information such as brand ex-warehouse quantity and brand ex-warehouse frequency, and determining the in-warehouse and out-warehouse priority level of the multiple goods passing positions. And (2) carrying out ABC classification according to SKU turnover information analyzed by S21 (the ABC classification is classified into a brand with high stock turnover rate and high sale rate, a brand with low stock turnover rate and low sale rate is classified into a C class, and a brand with a B class is classified between the two. The cargo space priority relationship of FIG. 6 and the cargo space plan under ABC classification are obtained.
Step S23, according to the pre-replenishing queue of the multi-pass sorting line, according to the priority of the multi-pass goods entering and exiting the warehouse set in the step S22, the goods exiting position is determined, and the task information of replenishing the goods of the multi-pass sorting line is generated
And step S24, according to the pre-replenishing queue of the elevated warehouse to the stock system, according to the set priority of the stock system for the stock position to enter and exit, determining the stock position of the warehouse, and generating the task information of the elevated warehouse for replenishing the stock system.
Further technical solution, the step S3 includes the following steps:
and step S31, presetting the corresponding relation between the sorting line and the stock system. The system can be set to a mode that the 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.
And step S32, setting the upper and lower inventory limits and single replenishment quantity of each brand of the stock system in advance through order analysis. The brand sales were for the top 20 brands, with an upper limit of 60, a lower limit of 30, and a single replenishment quantity of 30.
Step S33, according to the pre-replenishing queue (HrgvOutqueue) of the stock system to the sorting line, combining the corresponding relation of the sorting line and the stock system, the available stock level of the stock system calculates the queue (HrgvInqueue) of the stock system replenished from the elevated warehouse
And step S34, driving the elevated library to generate an ex-warehouse task according to the queue (HrgvInqueue) of the elevated library for replenishing the stock system. Flow control is needed when the elevated warehouse is delivered, the delivery task is equally divided in a roadway and on the destacking station tray, the flow of the destacking tray is controlled, and when the delivery tray exceeds a limited threshold value, a new delivery destacking task is temporarily generated. The stock system consists of a plurality of roadways, and the task from the elevated warehouse to the cache replenishment realizes brand sharing and task sharing in the roadways; 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 multilayer shuttle and the double-speed chain can effectively ensure timely and sequential replenishment of a downstream sorting line, reasonably allocate the storage strategy in the stock system, ensure maximization of storage utilization and system redundancy and reduce the influence of the stock system on an upstream three-dimensional elevated warehouse.
Drawings
Fig. 1 is the general flow of the stock system of the present invention.
Fig. 2 is a schematic diagram of the replenishment process of the stock system to the sorting line according to the present invention.
Fig. 3 is a schematic diagram of the stock system storage strategy flow of the present invention.
Fig. 4 is a schematic diagram of the replenishment process from the three-dimensional elevated warehouse to the stock preparation system.
Fig. 5 is a schematic diagram of a multi-level logic structure of the sorting replenishment line of the invention.
FIG. 6 is a schematic diagram of the stock system cargo space allocation of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Referring to fig. 1, in this embodiment, the scheduling method of the stock system based on the multi-layer shuttle and the double-speed chain is used for reasonably utilizing the storage location of the stock system and meeting the real-time sequential replenishment requirement of the downstream sorting line.
The dispatching method of the stock system based on the multilayer shuttle and the double-speed chain comprises the following steps:
step S1, the stock system replenishes the sortation line. The replenishment algorithm description for order sorting is realized, the unique sorting line multilayer logic structure mode can effectively solve the replenishment strategy under various sorting line layout modes, the utilization rate of sorting replenishment conveying equipment can be improved to the maximum extent, and the problem of mutual congestion among replenishment equipment intersections is reduced to the maximum extent. And the flow rate of replenishing goods to the sorting line can be flexibly controlled.
Step S2, the stock system stores the policy. The brand layout of the multi-threading and double-speed chain is reasonably planned according to order analysis, and the priority of the multi-threading positions, the storage capacity of the single-brand and the like are reasonably planned after SKU analysis. The delivery efficiency of the stock system can be improved to the maximum extent.
And step S3, the three-dimensional elevated warehouse replenishes the stock system. The method realizes the real-time pre-replenishment queue according to the sorting line, and calculates the pre-replenishment queue of the stock system by combining the brand stock of the stock system and the flow of entering and leaving the warehouse. The goods preparation mode of a detachable tunnel to a sorting line greatly improves the flexibility of the goods preparation system, reduces the influence degree of equipment failure of the goods preparation system on the whole sorting system, and reduces the condition of reduced goods supplement efficiency caused by the problem of lack of cigarettes to the minimum.
In conjunction with fig. 2, specifically, the step S1 includes the following steps:
step S11, defining a sorting line region logic relationship, which may be a multi-layer logic as shown in fig. 5; the sorting and replenishment area is defined as a sorting line, namely a main logic area (PA1, PA2 …), the main logic area is divided into two sub logic areas (PA1_1, PA1-2), and the sub logic areas are divided into four physical replenishment areas (PA11, PA12, PA13 and PA 14);
in step S12, upper layer request areas of each replenishment area are defined, and one replenishment area may correspond to a plurality of request areas, as shown in table 1.
Table 1 sorting replenishment area and upper layer request area corresponding relation table
| Source region | Source region storage area | Request region | Request area storage area | Type of service |
| L0000WS | L0000WS | BH_Hrgv | BH_Hrgv | Warehouse is to high system replenishment of wearing |
| BH_Hrgv | BH_Store | PA11 | PA11 | High-penetration sorting line replenishment |
| BH_Hrgv | BH_Store | PA12 | PA12 | High direction of penetrationSorting line replenishment |
| BH_Hrgv | BH_Store | PA13 | PA13 | High-penetration sorting line replenishment |
| BH_Hrgv | BH_Store | PA14 | PA14 | High-penetration sorting line replenishment |
| BH_Hrgv | BH_Store | PA21 | PA21 | High-penetration sorting line replenishment |
| BH_Hrgv | BH_Store | PA22 | PA22 | High-penetration sorting line replenishment |
| BH_Hrgv | BH_Store | PA23 | PA23 | High-penetration sorting line replenishment |
| BH_Hrgv | BH_Store | PA24 | PA24 | High-penetration sorting line replenishment |
In table 1: the table defines the relationship between the source locale and the request locale, as well as the type of traffic used between the two locales. L000WS represents an elevated pool area and an elevated pool storage area, and BH _ Hrgv represents a stock area. BH _ Store represents stock storage area, PA11 represents sorting line No. one sub-line storage area, and PA21 represents sorting line No. two sub-line storage area.
For example: the source area [ L0000WS ], the request area [ BH _ Hrgv ] indicates that the stock area [ BH _ Hrgv ] is a region needing replenishment, and the region requests replenishment from the elevated library area [ L000WS ].
And step S13, defining the replenishment limit information of the sorting channel, such as setting brand, setting upper and lower limits of the channel, and setting replenishment number of the channel.
And step S14, calibrating brand inventory information of each storage area of the sorting line. The method comprises the steps of processing replenishment tasks of replenishment to each physical area, and adding stocks to corresponding physical storage areas when the task state is complete. The sorting task is processed with the sorting line completed but without deduction of inventory, which is deducted from the corresponding physical storage area. With each mainline [ PA1] as a root node, recursively calibrate the current inventory of each brand for each region according to outstanding requests. For example: PA11 available stock + current stock of PA11 on aisle ceiling-PA 11 outstanding incoming sort line replenishment requests.
Step S15, generate a pre-replenishment queue (HrgvOutQueue) of the multi-layer shuttle to sort line according to the policy. Including obtaining the unfinished sort task list of the sort line, uinneishtastlist, and sorting in ascending order of sort order number, as shown in table 2.
TABLE 2 list of outstanding sort tasks
| Task number | Sorting sub-line | Sorting main line | Serial number | Brand code | 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: for the incomplete sorting job column, the sequencing queue of the unsorted completed sorting jobs for each sub-line of each sorting line is described in detail. And the replenishment strategy calculates the prerequisite input conditions of the pre-replenishment queue of the sorting line.
For example, 201907110001 is the sorting task number, Sortline10 is the main sorting line number, Sortline14 is the sub-sorting line number, sequence numbers 1 and 2 are the order of sorting task execution, sorted in ascending order, and areas PA14 and PA13 represent the storage areas of the sorting lines, corresponding to the request storage areas of table 1. The sorting unit U14_01_007 represents smoke outlet channels of corresponding brands of the tasks and is used for representing the smoke outlet sequence of the brands in the tasks.
And circulating a sorting task list UnfinishTaskList, taking a first sorting task, acquiring available inventory ITEM1STORE in a replenishment area corresponding to a brand [ ITEM1] in the sorting task, calculating whether replenishment is needed, namely ITEM1STORE + sorting quantity (piece), rounding down the ITEM1STORE to obtain ITEMFILL1, and if ITEMFILL1>0, adding a sorting replenishment request of the brand corresponding to the sorting task in a replenishment queue [ HrgvOutQueue ], and circulating all brands corresponding to the sorting tasks. If ITEMFILL1< ═ 0, then no replenishment queue is added. And continuously calculating the next sorting task until all brands of all sorting tasks are processed. And through S152, acquiring a replenishment queue [ HrgvOutQueue ] of each physical area, circulating each request, and determining an upper layer replenishment area of the request. And obtaining the replenishment queue [ HrgvOutQueue ] of each physical area through S153, returning the [ HrgvOutQueue ] to an upper layer logic area for processing, initializing the sequence of the [ HrgvOutQueue ] queue according to a logic structure defined in basic data, filling each logic branch in sequence, and filling the logic area into each replenishment request of the [ HrgvOutQueue ].
Step S16, return the replenishment request queue [ HrgvOutQueue ] of the sorting line.
In conjunction with fig. 3, specifically, the step S2 includes the following steps:
and step S21, reasonably setting storage brands and stock frequencies of the distribution double-speed chain and the multiple goods passing positions according to the circulation information of the order SKU. First, acquiring and analyzing order SKU turnover information. And obtaining ABC classification and brand sales ratio of the brand. And setting the upper limit and the lower limit of the brand in the stock system according to the ABC class and the sales volume ratio. The order sales analysis is summarized in table 3.
In table 3: the reasonable setting values of the division results of cigarette brand A \ B \ C categories, the ex-warehouse quantity of the brand, the ex-warehouse frequency and the brand upper and lower limits are obtained by analysis according to a certain day order.
According to table 3, the first n brands with the largest sales are that the n brands can be set on the double-speed chain for storage, and the rest brands are set as multi-pass storage. If the single-brand sales rate exceeds 20%, the brand can be set as double-speed chain double-channel, and the corresponding last brand is moved to multi-pass storage.
Table 3 order sales analysis summary table
| Serial number | Brand code | Brand name | Total sales volume | ABC classification | In order proportion | Upper limit of | Lower limit of |
| 1 | 440234 | Double happiness (Soft classic) | 24499 | A | 0.141 | 60 | 30 |
| 2 | 440242 | Double happiness (hard classic) | 9710 | A | 0.056 | 60 | 30 |
| 3 | 430201 | Lotus 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 | Hongta mountain (hard) | 3986 | B | 0.023 | 50 | 30 |
| 8 | 530133 | Yunyan (purple) | 3923 | B | 0.023 | 50 | 30 |
| 9 | 530232 | Yuxi (Soft) | 3882 | B | 0.022 | 50 | 30 |
| 10 | 530245 | Hongta mountain (Soft) | 3753 | B | 0.022 | 50 | 30 |
| 11 | 440237 | Double happiness (Soft blue) | 3626 | B | 0.021 | 50 | 30 |
| 12 | 350111 | Seven wolf (lofty sentiments) | 3506 | B | 0.020 | 50 | 30 |
| …. | …. | …. | …. | …. | …. | …. | …. |
| 40 | 510109 | Jiaozi (Jiaozi) | 954 | C | 0.005 | 35 | 30 |
| 41 | 450323 | Real dragon (Splendid) | 835 | C | 0.005 | 35 | 30 |
| 42 | 340175 | Huangshan (humblebee) | 798 | C | 0.005 | 35 | 30 |
| 43 | 110111 | South China sea (5m) | 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 wolf (Red) | 749 | C | 0.04 | 35 | 30 |
| 46 | 320107 | Nanjing (Red) | 728 | C | 0.04 | 35 | 30 |
| …. | …. | …. | …. | …. | … | …. | …. |
Step S22, combining the SKU turnaround information (as shown in table 3), such as: the method comprises the steps of determining the ex-warehouse priority level of a plurality of goods-passing positions, determining the ex-warehouse quantity of brands, determining the ex-warehouse frequency of brands, and reasonably planning the storage structure of the plurality of goods-passing positions. And according to the analyzed ABC classification of the SKU turnover information S21, the allocation of the priority of the goods space is combined with the ABC classification. And obtaining the priority relation of the cargo space and the cargo space planning under the ABC classification.
And step S23, according to the pre-replenishment queue of the stock system to the sorting line, determining the delivery goods location according to the multi-pass goods location delivery and delivery priority set in the step S22, and generating task information of replenishment of the multi-pass sorting line. And (4) acquiring the ex-warehouse brand, and if the brand is stored in a speed chain and only one speed chain channel is allocated, directly generating the task of ex-warehouse from the speed chain. If the brand double-speed chain is distributed with two channels, the first-out principle is adopted according to the channel with the least warehouse-out task amount and the most warehouse. And if the brand is stored in a multi-pass mode, summarizing the total number of ex-warehouse tasks of all the roadways, equally dividing the tasks on a roadway layer, and determining the roadway which is most suitable for ex-warehouse. And after the roadway is determined, summarizing the total number of ex-warehouse tasks of each layer in the roadway, and performing task equal division on the layer number. And determining the layer which is most suitable for ex-warehouse. If the spare system roadway and the sorting line are in a 1-to-1 relationship, only the corresponding roadway can be found, and the step S232 is skipped. And after the roadway and the floor are determined, determining the delivery position according to the priority determined in the step S22.
And step S24, according to the pre-replenishing queue of the elevated warehouse to the stock system, according to the set priority of the multi-pass cargo entering and exiting, determining the warehousing cargo space, and generating the task information of the elevated warehouse for replenishing the stock to the stock system. And (4) acquiring the ex-warehouse brand, and if the brand is stored in a speed chain and only one speed chain channel is allocated, directly generating a task of entering the speed chain warehouse. If two channels are allocated to the brand double speed chain, the amount allocated to each channel is calculated according to the capacity of each channel. And (4) storing the brands in a multi-pass mode, firstly summarizing the total number of warehousing tasks of each roadway and the capacity proportion of the brands among the roadways, carrying out brand sharing and task sharing on the roadways, and determining the roadway most suitable for warehousing. After the roadway is determined, the total number of warehousing tasks of each layer in the roadway is collected, the capacity proportion of the brand in each layer in the roadway is collected, and the brand and task are equally divided in the number of layers. And determining the layer which is most suitable for ex-warehouse. If the stock system lanes are in a1 to 1 relationship with the sort line, brand warehousing allocates the amount of each lane to the corresponding lane on the request calculated at S3. After the warehousing quantity of each roadway is determined, brand sharing and task sharing are carried out on the layer. And after the roadway and the layer are determined, determining the warehousing goods space according to the priority determined in the step S22.
In conjunction with fig. 4, specifically, the step S3 includes the following steps:
and step S31, presetting the corresponding relation between the sorting line and the stock system. The system can be set to a mode that the 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.
And step S32, setting the upper and lower inventory limits and single replenishment quantity of each brand of the stock system in advance through order analysis. The brand sales were for the top 20 brands, with an upper limit of 60, a lower limit of 30, and a single replenishment quantity of 30.
And step S33, calculating a queue (HrgvInqueue) for replenishing goods from the elevated warehouse to the stock system according to the stock system to the sorting line pre-replenishing queue (HrgvOutqueue) and the corresponding relation between the sorting line and the stock system and the amount of the available goods by passing through. And calibrating brand inventory information of the multi-penetration spare area. The multi-pass inventory Store is identified by [ BH _ Store ]. Acquiring replenishment, loading into a stock system, and adding the stock into a corresponding multi-pass stock storage region [ BH _ Store ] after the replenishment task (represented by [ Instore ]) is executed; acquiring a replenishment shipment system, and deducting inventory from a corresponding multi-pass stocking memory area [ BH _ Store ] by using a completed replenishment task (represented by [ OutStore ]); acquiring an executing request (represented by [ InReqStore ]) of no replenishment and multi-pass, and adding the stock to a corresponding multi-pass stock storage area [ BH _ Store ]; acquiring a non-replenishment-shipment multi-pass executing request (represented by [ OutReqStore ]), and deducting the stock from a corresponding multi-pass stock storage region [ BH _ Store ]; and calculating the actual stock [ BH _ Store ] of the multi-pass stock area, namely CurrStore + InStore + InReqStore-OutStore-OutReqStore. And calculating the current allocable warehousing flow [ Inflow ] ═ system rated warehousing flow-current warehousing task amount-request amount without generating warehousing tasks. When the allocable warehousing traffic [ Inflow ] >0, the process proceeds to step S11 to perform sorting line to allocate stock items as needed, and when the allocable warehousing traffic [ Inflow ] >0, the process proceeds to step S13.
Initializing the pre-replenishment queue information, traversing the ex-warehouse request information of the ex-warehouse task which is not generated in the stock area at present according to the sequence, and when the actual stock-1 of the stock area is equal to 0 (the lower limit of the stock according to the requirement), the actual stock of the stock area is equal to the actual stock-1 of the stock area, and continuously traversing the next ex-warehouse task request information. When the stock area actual stock is equal to-1, the stock area actual stock is equal to 0 (lower limit of stock on demand), the allocable stock entry flow is equal to allocable stock entry flow-1, and when the allocable stock entry flow is less than 0, the process goes to step S334. And when the distributable warehousing flow rate > is 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 quantity of 1 at the tail end of the pre-replenishment queue. If yes, finding the last piece of pre-supplement information of the brand in the pre-supplement queue, and comparing the pre-supplement quantity of the pre-supplement information with the single maximum supplement quantity of the brand. And when the pre-compensation quantity is less than the single maximum pre-compensation quantity, the pre-compensation quantity is equal to the pre-compensation quantity +1, and the next ex-warehouse request information is continuously processed. And when the pre-compensation number > is the single maximum pre-compensation number, adding pre-compensation information of one piece of information at the tail end of the pre-compensation queue, wherein the pre-compensation number is 1. And continuing to process the next row of ex-warehouse request information. And when the processing of the ex-warehouse request information of all the tasks which are not generated is finished, jumping to the step 334. In addition, the lower limit of stock can be sorted according to the current day, and after ABC classification is carried out on all brands of the order according to the total quantity ratio of the order, different lower limit values are provided according to the demand frequency.
Initializing replenishment queue information, reinitializing distributable warehousing flow information, traversing the replenishment queue information, correcting the replenishment information, and recording the replenishment quantity of the replenishment as the single replenishment lower limit of the brand when the replenishment quantity in the replenishment queue information is less than the single replenishment lower limit of the brand, wherein the replenishment quantity is the single replenishment lower limit-replenishment quantity, and the replenishment quantity is the single replenishment lower limit. Traversing the corrected pre-supplement queue, when the distributable warehousing flow-pre-supplement quantity > is equal to 0, adding the row of pre-supplement information into the supplement queue, correcting the brand actual inventory into actual inventory + super-supplement quantity, when the distributable warehousing flow-pre-supplement quantity is less than 0, the distributable warehousing flow is equal to 0, and jumping to step S335. And when the pre-replenishment queue is traversed, jumping to the step S335.
And (4) the sorting line is normally stocked, and when the distributable warehousing flow is less than 0, the step S3334 is skipped. And when the distributable warehousing flow is greater than 0, correlating the actual inventory with the upper and lower limits of the brand according to the brand, traversing the data according to the brand coding sequence, skipping the brand when the actual inventory > is the lower limit of the inventory, not carrying out conventional stock keeping, and starting carrying out conventional stock keeping of a sorting line when the actual inventory < the lower limit of the inventory. When the lower limit of the stock-the actual stock is less than the lower limit of the single replenishment, the pre-replenishment quantity is less than the lower limit of the single replenishment. When the inventory lower limit-actual inventory > the single replenishment lower limit and the inventory lower limit-actual inventory < the single replenishment upper limit, the pre-replenishment quantity is equal to the single replenishment upper limit. When the inventory lower limit-actual inventory > the single replenishment upper limit, the replenishment frequency is (inventory lower limit-actual inventory)/single replenishment upper limit, and the replenishment quantity is (single replenishment upper limit). And when the distributable quantity is greater than 0, adding the pre-supplement information to the end of the replenishment queue. When the allocable number is <0, it jumps to step S336. When all brands are traversed, a replenishment request queue is returned [ HrgvInqueue ].
And step S34, driving the elevated library to generate an ex-warehouse task according to the queue (HrgvInqueue) of the elevated library for replenishing the stock system. Flow control is needed when the elevated warehouse is delivered, the delivery task is equally divided in a roadway and on the destacking station tray, the flow of the destacking tray is controlled, and when the delivery tray exceeds a limited threshold value, a new delivery destacking task is temporarily generated. The stock system consists of a plurality of roadways, and the task from the elevated warehouse to the cache replenishment realizes brand sharing and task sharing in the roadways; and brand sharing and task sharing are also realized between the same layers in the same roadway. The elevated library acquires a cache replenishment request queue [ HrgvInqueue ], acquires a first request from the replenishment queue, judges the inventory of the elevated library, and generates an ex-warehouse task of the elevated library if the inventory exists. And if the stock is not available, automatically canceling the replenishment request. And if the stock exists, generating an elevated warehouse ex-warehouse task, equally dividing the task in the roadway of the elevated warehouse and equally dividing the task on the unstacking platform of the elevated warehouse. If the ex-warehouse tray is not completely disassembled, the task is controlled to be generated to the unstacking station capable of returning to the warehouse. When the ex-warehouse pallet arrives at a station, destacking information (brand, pallet number, destacking number and stack type) is sent to equipment; and simultaneously generating a request for entering the stock system, wherein the request type is InHrgvRequest. And the stock system generates a replenishment task from the elevated warehouse to the stock system according to the request of entering the stock system generated in the step S344 and the strategy formulation of the step S2, and determines the target goods space of the cigarette carton.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (4)
1. A dispatching method of a stock system based on a multilayer shuttle and a double-speed chain is characterized by comprising the following steps:
step S1, the stock system replenishes the sorting line, abstractly defines the multilayer logic structure of the sorting line, requests the replenishment area by the sorting line, sorts and leads to the replenishment limited information, and generates a pre-replenishment queue of the stock system to the sorting line according to the sorting order and the composite multilayer logic replenishment strategy based on the basic information such as the inventory area of each physical area of the sorting line;
step S2, a stock system storage strategy is formulated to realize order analysis, the sales volume change of the brands in the order can be analyzed according to annual sales volume and monthly sales volume, the former n brands with large and stable sales volume are preferentially stored by adopting a speed doubling chain, the rest brands are stored by adopting multi-penetration, the brand layout of the multi-penetration and speed doubling chains is planned, and the priority of the multi-penetration positions and the storage volume of the single-brand are planned after SKU analysis;
and step S3, the elevated warehouse replenishes the stock system, realizes the real-time pre-replenishment queue according to the sorting line according to the calculation result of the step S1, and calculates the pre-replenishment queue from the elevated warehouse to the stock system by combining the brand stock of the stock system, the use condition of the goods level and the flow rate of entering and leaving the warehouse.
2. The method for dispatching a stocking system based on multi-layer shuttle and double speed chain as claimed in claim 1, wherein said step S1 comprises the steps of:
step S11, defining the logic relation of sorting line area, which can be multi-layer logic; PA1 is a main replenishment line of the sorting line and belongs to a main logic area; PA1_1 and PA1_2 are replenishment line logic areas; PA11, PA12, PA13 and PA14 are physical areas of the replenishment line, and the areas are related to the actual sorting sub-line and sorting machine set;
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 the replenishment limiting information of the sorting channel, such as setting brand, setting upper and lower limits of the channel, and setting replenishment number of the channel;
step S14, brand inventory information of each storage area of the sorting line is calibrated;
step S15, generating a pre-replenishment queue HrgvOutQueue from the multi-layer shuttle to the sorting line according to a strategy;
step S16, returning the replenishment request queue HrgvOutQueue of the sorting line.
3. The dispatching method of the stocking system based on the multi-layer shuttle and the double-speed chain as claimed in claim 1 or 2, wherein said step S2 comprises the steps of:
s21, reasonably setting storage brands and stock frequencies for distributing the speed multiplication chains and the multiple goods passing positions according to the circulation information of the order SKU;
step S22, reasonably planning the storage structure of multiple goods-passing positions and determining the priority level of the goods-passing positions to enter and exit the warehouse by combining the circulation information of the SKU, such as the quantity of the goods-passing brands and the frequency of the goods-passing brands; classifying according to the analyzed SKU turnover information ABC of S21, and allocating the priority of the goods space in combination with the ABC classification; obtaining the priority relation of the goods space of the next drawing and the goods space planning under the ABC classification;
step S23, according to the pre-replenishment queue of the multi-pass sorting line, according to the priority of the multi-pass goods entering and exiting the warehouse set in the step S22, the goods exiting position is determined, and task information of replenishment of the multi-pass sorting line is generated;
and step S24, according to the pre-replenishing queue of the elevated warehouse to the stock system, according to the set priority of the multi-pass cargo entering and exiting, determining the warehousing cargo space, and generating the task information of the elevated warehouse for replenishing the stock to the stock system.
4. The dispatching method of the stocking system based on the multi-layer shuttle and the double-speed chain as claimed in claim 1 or 2, wherein said step S3 comprises the steps of:
step S31, presetting the corresponding relation between the sorting line and the stock system; the system can be set to a mode that the 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 the upper and lower stock limits and single replenishment quantity of each brand of the multi-pass stocking area in advance through order analysis; the brand sale amount is the brand of the top 20, the upper limit is set to be 60, the lower limit is set to be 30, and the single replenishment amount is 30;
step S33, calculating a queue HrgvInqueue for replenishing goods from the elevated warehouse to the stock system according to the stock system to the pre-replenishing queue HrgvOutqueue of the sorting line and the corresponding relation between the sorting line and the stock system and the amount of the available goods by passing through;
step S34, driving the elevated warehouse to generate an ex-warehouse task according to a queue HrgvInqueue for replenishing goods to a stock system by the elevated warehouse; flow control is needed when the elevated warehouse is delivered, the delivery task is divided equally in a roadway and on a destacking station tray, the flow of the destacking tray delivered from the warehouse is controlled, and when the delivery tray exceeds a limited threshold value, a new delivery destacking task is suspended; the stock system consists of a plurality of roadways, and the tasks from the elevated warehouse to the cache replenishment realize brand sharing and task sharing in the roadways; and brand sharing and task sharing are also realized between the same layers in the same roadway.
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