CN109960826A - Supply chain simulation method and apparatus - Google Patents
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Abstract
The invention discloses a kind of supply chain simulation method and apparatus, are related to field of computer technology.Wherein, which comprises generate multiple article demand events；Shipping room is determined for each article demand event；Judge whether to trigger the shipping events of the shipping room and the event that replenishes；The shipping events are being triggered, and/or, in the case where the event that replenishes, update the inventory data of the shipping room.By above method, can the dynamic operation situation to supply chain simulate, be particularly suitable for the supply chain simulation with electric business enterprises characteristics.Based on the supply chain simulation method, supply chain can efficiently and accurately be assessed, and then help enterprise to find efficient inventory strategy parameter and realize that rational inventory is horizontal.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of supply chain simulation method and apparatus.
Background technique
For electric business enterprise, the position in warehouse and inventory level are extremely important.Unreasonable warehouse location and
Inventory level can seriously reduce the operational efficiency of supply chain, influence enterprise income, and bring unnecessary loss.Therefore, how
Guarantee that supply chain efficient operation is the important process of enterprise.
For the efficient operation for guaranteeing supply chain, the method for generalling use analogue simulation assesses supply chain, and provides
Decision support.Existing supply chain simulation technology is mostly based on discrete event dynamic system, usually based on mathematical model, with
It asks numerical solution to be characterized, is modeled using various business simulation softwares.
In realizing process of the present invention, at least there are the following problems in the prior art: existing business simulation for inventor's discovery
The scene of software is directed to traditional supply chain mostly, not be suitble to electric business enterprises characteristics simulation model, and then lead to not efficiently,
Accurately supply chain is assessed.In addition the purchase of business software, maintenance cost are very high.In addition, existing business simulation software
Different simulation parameters need to be set by hand, and click operation by hand, the degree of automation is low, it is difficult to realize extensive mass fortune
Row.
Summary of the invention
It, being capable of dynamic operation shape to supply chain in view of this, the present invention provides a kind of supply chain simulation method and apparatus
Condition is simulated, and the supply chain simulation with electric business enterprises characteristics is particularly suitable for.It, can be right based on the supply chain simulation method
Supply chain is efficiently and accurately assessed, and then is helped enterprise to find efficient inventory strategy parameter and realized rational inventory
It is horizontal.
To achieve the above object, according to an aspect of the invention, there is provided a kind of supply chain simulation method.
Supply chain simulation method of the invention includes: to generate multiple article demand events；For each article demand event
Determine shipping room；Judge whether the shipping events for triggering the shipping room and the benefit for whether triggering the shipping room
Goods event；The shipping events are being triggered, and/or, in the case where triggering and completing the event that replenishes, update the issuing bay
The inventory data in library.
Optionally, the article demand event includes: the position of requirement of main body；It is described true for each article demand event
The step of determining shipping room include: calculate each warehouse to the distribution cost between the position of the requirement of main body, and will dispatching at
This minimum warehouse is as shipping room.
Optionally, described to calculate each warehouse to the step of distribution cost between the position of the requirement of main body and include:
The manhatton distance between each warehouse and the requirement of main body is calculated according to the following formula；
di,j=| xi-xj|+|yi-yj|
Each warehouse is calculated according to the following formula to the distribution cost between the position of the requirement of main body；
Ci,j=wi,j*di,j
Wherein, di,jFor the manhatton distance between j-th of warehouse and i-th of requirement of main body, xiAnd yiFor i-th of demand master
The position coordinates of body, xjAnd yjFor the position coordinates in j-th of warehouse, Ci,jFor j-th of warehouse to the position of i-th of requirement of main body it
Between distribution cost, wi,jTransportation cost weight between j-th of warehouse and i-th of requirement of main body.
Optionally, the article demand event includes: the article demand of requirement of main body；It is described to judge whether described in triggering
The step of shipping events of shipping room includes: by the article in the article demand of the requirement of main body and the shipping room
Current quantity in stock be compared；If the article demand of the requirement of main body is less than or equal to the article in the shipping room
Current quantity in stock then triggers the shipping events of the shipping room；Otherwise, the shipping events of the shipping room are not triggered.
Optionally, it is described judge whether to trigger the shipping room replenish event the step of include: by the issuing bay
First inventory's threshold value s in library in the inventory strategy (s, S) of the current quantity in stock of the article and the article is compared；If described
The current quantity in stock of the article is less than s in shipping room, then triggers the event that replenishes of the shipping room, and according to the second inventory
The current quantity in stock of threshold value S and the article determines replenishment quantity, and is generated and replenished delay time based on random function simulation；Otherwise,
The event that replenishes of the shipping room is not triggered.
Optionally, the step of generation multiple article demand events include: to generate requirement of main body according to random function
The article demand of position coordinates and the requirement of main body.
Optionally, the method also includes: preset parameterized template is read, to initialize each simulation parameter；The emulation
Parameter includes: the parameter for the random function that emulation is related to.
Optionally, the method also includes: the simulation result of the preset time period is exported；The simulation result packet
It includes: the quantity in stock of shipping room and total distribution cost of shipping room.
To achieve the above object, according to another aspect of the present invention, a kind of supply chain simulation device is provided.
Supply chain simulation device of the invention includes: generation module, for generating multiple article demand events；Determine mould
Block, for determining shipping room for each article demand event；Judgment module triggers the shipping room for judging whether
Shipping events and whether trigger the event that replenishes of the shipping room；Update module, for triggering the delivery thing
Part, and/or, in the case where triggering and completing the event that replenishes, update the inventory data of the shipping room.
Optionally, the article demand event includes: the position of requirement of main body；The determining module is needed for each article
Ask event determine shipping room include: the determining module calculate each warehouse to the dispatching between the position of the requirement of main body at
This, and using the minimum warehouse of distribution cost as shipping room.
Optionally, the determining module calculates each warehouse to the distribution cost between the position of the requirement of main body and includes:
The determining module calculates the manhatton distance between each warehouse and the requirement of main body according to the following formula；
di,j=| xi-xj|+|yi-yj|
The determining module calculates each warehouse to the distribution cost between the position of the requirement of main body according to the following formula；
Ci,j=wi,j*di,j
Wherein, di,jFor the manhatton distance between j-th of warehouse and i-th of requirement of main body, xiAnd yiFor i-th of demand master
The position coordinates of body, xjAnd yjFor the position coordinates in j-th of warehouse, Ci,jFor j-th of warehouse to the position of i-th of requirement of main body it
Between distribution cost, wi,jTransportation cost weight between j-th of warehouse and i-th of requirement of main body.
Optionally, the article demand event includes: the article demand of requirement of main body；The judgment module judges whether
The shipping events for triggering the shipping room include: the judgment module by the article demand of the requirement of main body and the hair
The current quantity in stock of the article is compared in freight house library；If the article demand of the requirement of main body is less than or equal to the delivery
The current quantity in stock of the article, then trigger the shipping events of the shipping room in warehouse；Otherwise, the shipping room is not triggered
Shipping events.
Optionally, the judgment module judges whether that the event of replenishing for triggering the shipping room includes: the judgement mould
Block is by first inventory's threshold value s in the inventory strategy (s, S) of the current quantity in stock of the article in the shipping room and the article
It is compared；If the current quantity in stock of the article is less than s in the shipping room, the thing that replenishes of the shipping room is triggered
Part, and replenishment quantity is determined according to the current quantity in stock of second inventory's threshold value S and the article, and replenish and prolong based on random function generation
The slow time；Otherwise, the event that replenishes of the shipping room is not triggered.
Optionally, described device further include: read module, for reading preset parameterized template, to initialize each emulation
Parameter；The simulation parameter includes: the parameter for the random function that emulation is related to.
To achieve the above object, according to a further aspect of the invention, a kind of server is provided.
Server of the invention, comprising: one or more processors；And storage device, for storing one or more
Program；When one or more of programs are executed by one or more of processors, so that one or more of processors
Realize supply chain simulation method of the invention.
To achieve the above object, according to a further aspect of the invention, a kind of computer-readable medium is provided.
Computer-readable medium of the invention is stored thereon with computer program, real when described program is executed by processor
Existing supply chain simulation method of the invention.
One embodiment in foregoing invention has the following advantages that or the utility model has the advantages that the supply chain in the embodiment of the present invention is imitative
In true method, pass through the delivery thing for generating article demand event, determining shipping room, judging whether to trigger the shipping room
Part, replenish event, and update the inventory data of the shipping room and etc., realize the dynamic operation situation to supply chain
Simulation, be particularly suitable for the supply chain simulation with electric business enterprises characteristics.It, can be to supply based on the supply chain simulation method
Chain is efficiently and accurately assessed, and then is helped enterprise to find efficient inventory strategy parameter and realized rational inventory water
It is flat.
Further effect possessed by above-mentioned non-usual optional way adds hereinafter in conjunction with specific embodiment
With explanation.
Detailed description of the invention
Attached drawing for a better understanding of the present invention, does not constitute an undue limitation on the present invention.Wherein:
Fig. 1 is the key step schematic diagram of supply chain simulation method according to an embodiment of the invention；
Fig. 2 is the key step schematic diagram of supply chain simulation method according to another embodiment of the present invention；
Fig. 3 is the main modular schematic diagram of supply chain simulation device according to an embodiment of the invention；
Fig. 4 is the main modular schematic diagram of supply chain simulation device according to another embodiment of the present invention；
Fig. 5 is that the embodiment of the present invention can be applied to exemplary system architecture figure therein；
Fig. 6 is adapted for the structural schematic diagram for the computer system for realizing the server of the embodiment of the present invention.
Specific embodiment
Below in conjunction with attached drawing, an exemplary embodiment of the present invention will be described, including the various of the embodiment of the present invention
Details should think them only exemplary to help understanding.Therefore, those of ordinary skill in the art should recognize
It arrives, it can be with various changes and modifications are made to the embodiments described herein, without departing from scope and spirit of the present invention.Together
Sample, for clarity and conciseness, descriptions of well-known functions and structures are omitted from the following description.
It should be pointed out that in the absence of conflict, the feature in embodiment and embodiment in the present invention can be with
It is combined with each other.
Fig. 1 is the key step schematic diagram of supply chain simulation method according to an embodiment of the invention.The present invention is implemented
The supply chain simulation method of example is realized based on discrete events simulation mechanism, is developed according to the time of origin of discrete event and is advanced.This
The supply chain simulation method of inventive embodiments is used to simulate the dynamic operation shape of preset time period (such as 100 days) interior supply chain
Condition, and (for example, iteration cycle is set as one day) executes step shown in Fig. 1 in each iteration cycle, comprising:
Step S101, multiple article demand events are generated.
Wherein, the article demand event includes: position and the article demand of requirement of main body.It illustratively, can basis
Random function generates the position coordinates of requirement of main body and the article demand of the requirement of main body.
Step S102, shipping room is determined for each article demand event.Wherein, the shipping room can be level-one
Warehouse is also possible to second level warehouse.Level-one warehouse, the i.e. warehouse of higher level, warehouse are larger；Second level warehouse, i.e., compared with
The warehouse of low level, warehouse scale are smaller.
Step S103, judge whether to trigger the shipping events of the shipping room and whether trigger the shipping room
The event that replenishes.
Step S104, the shipping events are being triggered, and/or, in the case where triggering and completing the event that replenishes, update
The inventory data of the shipping room.
Wherein, the triggering and complete the event of replenishing and refer to: determination replenishes, and when by certain delay
Between after, replenish and reach the shipping room.When it is implemented, the delay time can be simulated by being uniformly distributed random function
It arrives.In addition, the event to replenish from suppliers can be triggered when shipping room is level-one warehouse；When shipping room is
When second level warehouse, it can trigger from level-one warehouse, and/or, the event that suppliers replenish.
In embodiments of the present invention, by generating article demand event, determining shipping room, judge whether to trigger the hair
The shipping events in freight house library, replenish event, and update the inventory data of the shipping room and etc., it realizes to supply chain
Dynamic operation situation simulation, be particularly suitable for the supply chain simulation with electric business enterprises characteristics.Based on the supply chain simulation
Method can efficiently and accurately assess supply chain, so help enterprise find efficient inventory strategy parameter and
Realize that rational inventory is horizontal.
Fig. 2 is the key step schematic diagram of supply chain simulation method according to another embodiment of the present invention.The present invention is implemented
The supply chain simulation method of example realizes that the dynamic for simulating supply chain in preset time period is transported based on discrete events simulation mechanism
Row situation.As shown in Fig. 2, the supply chain simulation method of the embodiment of the present invention includes:
Step S201, preset parameterized template is read, to initialize each simulation parameter.
In the specific implementation, the parameterized template can be stored in an excel file on local disk.Pass through fortune
The parameterized template is read into memory by row simulator, to realize the initialization of each simulation parameter.
Wherein, the parameterized template can include: simulation cycle (for example, total number of days of supply chain dynamic operation), warehouse position
First inventory's threshold value s and second in the beginning inventories of the goods categories, warehouse that set, are stored in warehouse, inventory strategy (s, S)
The parameter for the random function that the maximum inventory limitation of every kind of article and emulation are related in inventory's threshold value S, warehouse.
For example, corresponding parameter has mean value and standard when generating article demand by normal distribution random function
Difference；When by be uniformly distributed random function generation replenish delay time when, corresponding parameter has maximum delay time value, minimum
Two parameters of delay time value.In addition, the parameter value for emulating the random function being related to can also for different goods categories
It can be different.For example, the demand function of liquid detergent is (i.e. for generating article for liquid detergent and television set both articles
The random function of demand) in mean value may be to be tens of thousands of, the mean value in the demand function of television set may be several hundred.
Further, the warehouse on the parameterized template may include level-one warehouse, second level warehouse, can store in each warehouse more
The other article of type, and each warehouse can deliver to requirement of main body.In addition, the parameterized template may also include that mould
Quasi- regional scope, the parameters such as length and width of number of grid and each grid that simulated domain is divided into.The simulated domain model
It encloses, i.e. regional scope involved in supply chain simulation.For example, can the supply chain operating condition to north China Region domain emulate, can
Nationwide supply chain operating condition emulate, etc..
In embodiments of the present invention, it by presetting multiple parameters template, eliminates and " emulation is manually set on interface
The troublesome operation of parameter " can support the mass of multiple simulation models to run, Jin Erti by reading multiple parameters template
The high gentle execution efficiency of Automated water of supply chain simulation.
Step S202, multiple article demand events are generated.
Wherein, the article demand event includes: position and the article demand of requirement of main body.Illustratively, it can be based on
Random function generates the position coordinates of requirement of main body and the article demand of the requirement of main body.
For example, it is assumed that the simulated domain gross area is set as by 2500 sq-kms by parameterized template, length and width be 50 kms,
And by the simulated domain be divided into 10000 grids, each grid area be 0.25 sq-km, then can be based on random letter
Number selects 100 grids from this 10000 grids at random, and using the centre coordinate of this 100 grids as requirement of main body
Position coordinates.In addition, this respective article demand of 100 requirement of main body can be simulated by normal distribution random function.
Step S203, shipping room is determined for each article demand event.
Illustratively, which includes: to calculate each warehouse to the distribution cost between the position of the requirement of main body, and will
The minimum warehouse of distribution cost is as shipping room.Such as, it is assumed that share four warehouse storage1, storage2,
Storage3, storage4, for a requirement of main body, the distribution cost of warehouse storage1 to the requirement of main body is most
It is small, then warehouse storage1 is determined as to the shipping room of the requirement of main body.For example, for another requirement of main body, warehouse
The distribution cost of storage3 to the requirement of main body is minimum, then warehouse storage3 is determined as to the issuing bay of the requirement of main body
Library.
Further, in this example, described to calculate each warehouse to the distribution cost between the position of the requirement of main body
Step can include:
The manhatton distance between each warehouse and the requirement of main body is calculated according to the following formula；
di,j=| xi-xj|+|yi-yj|
Each warehouse is calculated according to the following formula to the distribution cost between the position of the requirement of main body；
Ci,j=wi,j*di,j
Wherein, di,jFor the manhatton distance between j-th of warehouse and i-th of requirement of main body, xiAnd yiFor i-th of demand master
The position coordinates of body, xjAnd yjFor the position coordinates in j-th of warehouse, Ci,jFor j-th of warehouse to the position of i-th of requirement of main body it
Between distribution cost, wi,jTransportation cost weight between j-th of warehouse and i-th of requirement of main body.In the specific implementation, may be used
According to dispatching route jam situation, transportation cost weight is set.For example, the transportation cost weight of the dispatching route of congestion can be set
It is 1.2, the transportation cost weight of the dispatching route of non-congestion is set as 1.0.
In embodiments of the present invention, shipping room is determined based on minimum distribution cost principle, and when calculating distribution cost
Path length, the setting transportation cost weight etc. between warehouse and requirement of main body are indicated using manhatton distance, are more met true
The characteristics of business scenario, helps to improve the reliability of simulation result.
Step S204, judge whether to trigger the shipping events of the shipping room and whether trigger the shipping room
The event that replenishes.
Illustratively, in this step, the shipping events for judging whether to trigger the shipping room can include: by institute
The article demand for stating requirement of main body is compared with the current quantity in stock of the article in the shipping room；If the demand master
The article demand of body is less than or equal to the current quantity in stock of the article in the shipping room, then triggers the hair of the shipping room
Goods event；Otherwise, the shipping events of the shipping room are not triggered.
Illustratively, in this step, the event that replenishes for judging whether to trigger the shipping room can include: by institute
First inventory's threshold value s in shipping room in the inventory strategy (s, S) of the current quantity in stock of the article and the article is stated to compare
Compared with；If the current quantity in stock of the article is less than s in the shipping room, the event that replenishes of the shipping room, and root are triggered
Determine replenishment quantity according to the current quantity in stock of second inventory's threshold value S and the article, and based on random function (for example, be uniformly distributed with
Machine function) simulation generate replenish delay time；Otherwise, the event that replenishes of the shipping room is not triggered.In addition, being embodied
When, when shipping room is level-one warehouse, the event of replenishing of triggering can be the event to replenish from suppliers；Work as delivery
When warehouse is second level warehouse, the event of replenishing of triggering can for from level-one warehouse, and/or, the event that suppliers replenish.
Step S205, the shipping events are being triggered, and/or, in the case where triggering and completing the event that replenishes, update
The inventory data of the shipping room.
Wherein, the triggering and complete the event of replenishing and refer to: determination replenishes, and when by certain delay
Between after, replenish and reach the shipping room.When it is implemented, the delay time can be simulated by being uniformly distributed random function
It arrives.The inventory data can include: article inventory amount, the article inventory state of shipping room.Wherein, the article inventory state
Can be divided into again can delivery state, can not delivery state.In addition, in the specific implementation, for the object generated in the delay time
Product demand event can carry out unified delivery processing in warehouse when replenishing and reaching and meet the condition for triggering shipping events.
Step S206, judge whether to reach specified simulation cycle.
For example, it is assumed that the simulation cycle specified in parameterized template is 100 days, iteration cycle is 1 day, then process shown in Fig. 2
It needs iteration 100 times.If reaching specified simulation cycle, S207 is thened follow the steps；If not up to specified simulation cycle, again
Step S202 to step S206 is executed, that is, enters next iteration.
Step S207, the simulation result in simulation cycle is exported.
Wherein, the simulation result can include: the total dispatching of the daily quantity in stock in shipping room and shipping room daily
Cost.In the specific implementation, user can carry out the emulation of big batch by the way that multiple parameters template is arranged, and be sought according to simulation result
Ask optimal inventory strategy parameter or optimal warehouse location.
In embodiments of the present invention, the simulation to the dynamic operation situation of supply chain can be realized by above step, especially
It is suitable for the supply chain simulations with electric business enterprises characteristics.Based on the supply chain simulation method, supply chain can be carried out high
Effect is accurately assessed, and then is helped enterprise to find efficient inventory strategy parameter and realized that rational inventory is horizontal.
Fig. 3 is the main modular schematic diagram of supply chain simulation device according to an embodiment of the invention.The present invention is implemented
The supply chain simulation device 300 of example is realized based on discrete events simulation mechanism, is developed according to the time of origin of discrete event and is advanced.
The supply chain simulation device 300 of the embodiment of the present invention is used to simulate the dynamic fortune of preset time period (such as 100 days) interior supply chain
Row situation, comprising: generation module 301, determining module 302, judgment module 303, update module 304.Also, this four modules can
Following operation is executed in each iteration cycle:
Generation module 301, for generating multiple article demand events.
Wherein, the article demand event includes: position and the article demand of requirement of main body.Illustratively, mould is generated
Block 301 can generate the position coordinates of requirement of main body and the article demand of the requirement of main body according to random function.
Determining module 302, for determining shipping room for each article demand event.Wherein, the shipping room can
To be level-one warehouse, it is also possible to second level warehouse.
Judgment module 303, for judging whether to trigger the shipping events of the shipping room and whether triggering the hair
The event that replenishes in freight house library.
Update module 304, for triggering the shipping events, and/or, trigger and complete it is described replenish event the case where
Under, update the inventory data of the shipping room.
Wherein, the triggering and complete the event of replenishing and refer to: determination replenishes, and when by certain delay
Between after, replenish and reach the shipping room.When it is implemented, the delay time can be simulated by being uniformly distributed random function
It arrives.In addition, the event to replenish from suppliers can be triggered when shipping room is level-one warehouse；When shipping room is
When second level warehouse, it can trigger from level-one warehouse, and/or, the event that suppliers replenish.
In embodiments of the present invention, article demand event generated by generation module 301, determined by determining module 302
Shipping room judges whether to trigger that the shipping events of the shipping room, replenish event, and passes through by judgment module 303
Update module 304 updates the inventory data of the shipping room, realizes the simulation to the dynamic operation situation of supply chain, especially
Suitable for the supply chain simulation with electric business enterprises characteristics.The supply chain simulation device of the embodiment of the present invention, can be to supply chain
It is efficiently and accurately assessed, and then helps enterprise to find efficient inventory strategy parameter and realize that rational inventory is horizontal.
Fig. 4 is the main modular schematic diagram of supply chain simulation device according to another embodiment of the present invention.The present invention is implemented
The supply chain simulation device 400 of example is based on discrete events simulation mechanism and realizes, for simulating moving for supply chain in preset time period
State operation conditions, comprising: read module 401, generation module 402, determining module 403, judgment module 404, update module 405,
Output module 406.
Read module 401, for reading preset parameterized template, to initialize each simulation parameter.
In the specific implementation, the parameterized template can be stored in an excel file on local disk.Read mould
The parameterized template can be read into memory by block 401, to realize the initialization of each simulation parameter.
Wherein, the parameterized template can include: simulation cycle (for example, total number of days of supply chain dynamic operation), warehouse position
First inventory's threshold value s and second in the beginning inventories of the goods categories, warehouse that set, are stored in warehouse, inventory strategy (s, S)
The parameter for the random function that the maximum inventory limitation of every kind of article and emulation are related in inventory's threshold value S, warehouse.For example, when logical
When crossing normal distribution random function generation article demand, corresponding parameter has mean value and standard deviation；When by being uniformly distributed
Random function generation replenish delay time when, corresponding parameter have maximum delay time value, minimum delay time value two ginseng
Number.In addition, the parameter value for emulating the random function being related to may also be different for different goods categories.For example, for
For liquid detergent and television set both articles, the demand function of liquid detergent (i.e. for generating the random function of article demand)
In mean value may be to be tens of thousands of, the mean value in the demand function of television set may be several hundred.
Further, the warehouse on the parameterized template may include level-one warehouse, second level warehouse, can store in each warehouse more
The other article of type, and each warehouse can deliver to requirement of main body.In addition, the parameterized template may also include that mould
Quasi- regional scope, the parameters such as length and width of number of grid and each grid that simulated domain is divided into.The simulated domain model
It encloses, i.e. regional scope involved in supply chain simulation.For example, can the supply chain operating condition to north China Region domain emulate, can
Nationwide supply chain operating condition emulate, etc..
In embodiments of the present invention, it by presetting multiple parameters template, eliminates and " emulation is manually set on interface
The troublesome operation of parameter " reads multiple parameters template by read module 401, can support the mass of multiple simulation models
Operation, and then the gentle execution efficiency of Automated water for improving supply chain simulation.
After realizing simulation parameter initialization by read module 401, generation module 402, determining module can be called
403, judgment module 404 and update module 405, to execute following operation in each iteration cycle:
Generation module 402, for generating multiple article demand events.
Wherein, the article demand event includes: position and the article demand of requirement of main body.Illustratively, mould is generated
Block 402 can within the scope of simulated domain by random function generate requirement of main body position coordinates and the requirement of main body
Article demand.
Determining module 403, for determining shipping room for each article demand event.
Illustratively, determining module 403 can calculate each warehouse to the distribution cost between the position of the requirement of main body, and
Using the minimum warehouse of distribution cost as shipping room.Further, in this example, determining module 403 calculates each warehouse to institute
State the distribution cost between the position of requirement of main body can include:
Determining module 403 calculates the manhatton distance between each warehouse and the requirement of main body according to the following formula；
di,j=| xi-xj|+|yi-yj|
Determining module 403 calculates each warehouse to the distribution cost between the position of the requirement of main body according to the following formula；
Ci,j=wi,j*di,j
Wherein, di,jFor the manhatton distance between j-th of warehouse and i-th of requirement of main body, xiAnd yiFor i-th of demand master
The position coordinates of body, xjAnd yjFor the position coordinates in j-th of warehouse, Ci,jFor j-th of warehouse to the position of i-th of requirement of main body it
Between distribution cost, wi,jTransportation cost weight between j-th of warehouse and i-th of requirement of main body.In the specific implementation, may be used
According to dispatching route jam situation, transportation cost weight is set.For example, the transportation cost weight of the dispatching route of congestion can be set
It is 1.2, the transportation cost weight of the dispatching route of non-congestion is set as 1.0.
In embodiments of the present invention, determining module 403 determines shipping room based on minimum distribution cost principle, also, really
Cover half block 403 is when calculating distribution cost using the path length between manhatton distance expression warehouse and requirement of main body, setting
Transportation cost weight etc., helps to improve the reliability of simulation result at the characteristics of more meeting actual services scene.
Judgment module 404, for judging whether to trigger the shipping events of the shipping room and whether triggering the hair
The event that replenishes in freight house library.
Illustratively, judgment module 404 judges whether to trigger the shipping events of the shipping room can include: judgment module
404 are compared the article demand of the requirement of main body with the current quantity in stock of the article in the shipping room；If institute
The article demand for stating requirement of main body is less than or equal to the current quantity in stock of the article in the shipping room, then triggers the delivery
The shipping events in warehouse；Otherwise, the shipping events of the shipping room are not triggered.
Illustratively, judgment module 404 judges whether to trigger the event that replenishes of the shipping room can include: judgment module
404 by first inventory's threshold value s in the inventory strategy (s, S) of the current quantity in stock of the article in the shipping room and the article
It is compared；If the current quantity in stock of the article is less than s in the shipping room, the thing that replenishes of the shipping room is triggered
Part, and replenishment quantity is determined according to the current quantity in stock of second inventory's threshold value S and the article, and based on random function (for example, uniformly
Distribution random function) simulation generate replenish delay time；Otherwise, the event that replenishes of the shipping room is not triggered.
Update module 405, for triggering the shipping events, and/or, trigger and complete it is described replenish event the case where
Under, update the inventory data of the shipping room.
Wherein, the triggering and complete the event of replenishing and refer to: determination replenishes, and when by certain delay
Between after, replenish and reach the shipping room.When it is implemented, the delay time can be simulated by being uniformly distributed random function
It arrives.The inventory data can include: article inventory amount, the article inventory state of shipping room.Wherein, the article inventory state
Can be divided into again can delivery state, can not delivery state.
Output module 406, for when reaching specified simulation cycle, the simulation result in simulation cycle to be exported, and
It is visualized.In addition, if the simulation cycle not up to specified, can call generation module 402, determining module again
403, judgment module 404 and update module 405 enter next iteration.
Wherein, the simulation result can include: the total dispatching of the daily quantity in stock in shipping room and shipping room daily
Cost.In the specific implementation, user can carry out the emulation of big batch by the way that multiple parameters template is arranged, and according to output module
The simulation result of 406 outputs seeks optimal inventory strategy parameter or optimal warehouse location.
The device of the embodiment of the present invention can be realized the simulation to the dynamic operation situation of supply chain, be particularly suitable for having
The supply chain simulation of electric business enterprises characteristics.Based on the supply chain simulation device, supply chain can efficiently and accurately be commented
Estimate, and then helps enterprise to find efficient inventory strategy parameter and realize that rational inventory is horizontal.
Fig. 5 shows the exemplary of the supply chain simulation method or supply chain simulation device that can apply the embodiment of the present invention
System architecture 500.
As shown in figure 5, system architecture 500 may include terminal device 501,502,503, network 504 and server 505.
Network 504 between terminal device 501,502,503 and server 505 to provide the medium of communication link.Network 504 can be with
Including various connection types, such as wired, wireless communication link or fiber optic cables etc..
User can be used terminal device 501,502,503 and be interacted by network 504 with server 505, to receive or send out
Send message etc..It can be the various electronic equipments with display screen and supported web page browsing on terminal device 501,502,503,
Including but not limited to smart phone, tablet computer, pocket computer on knee and desktop computer etc..
Server 505 can be to provide the server of various services, such as utilize terminal device 501,502,503 to user
Transmitted request provides the back-stage management server supported.Back-stage management server can analyze the request received
Deng processing, and processing result (such as simulation result of supply chain) is fed back into terminal device.
It should be noted that supply chain simulation method provided by the embodiment of the present invention is generally executed by server 505, phase
Ying Di, supply chain simulation device are generally positioned in server 505.
It should be understood that the number of terminal device, network and server in Fig. 5 is only schematical.According to realization need
It wants, can have any number of terminal device, network and server.
In addition, in some cases it may be filled using the supply chain simulation method or supply chain simulation of the embodiment of the present invention
The exemplary system architecture set can not also include terminal device 501,502,503 and network 504, that is, only include server 505.
It should be understood that in these cases, server 505 can be the various electronics with display screen and support program operation and set
It is standby.
Fig. 6 shows the structural schematic diagram for being suitable for the computer system 600 for the server for being used to realize the embodiment of the present invention.
Computer system shown in Fig. 6 is only an example, should not function to the embodiment of the present invention and use scope bring it is any
Limitation.
As shown in fig. 6, computer system 600 includes central processing unit (CPU) 601, it can be read-only according to being stored in
Program in memory (ROM) 602 or be loaded into the program in random access storage device (RAM) 603 from storage section 608 and
Execute various movements appropriate and processing.In RAM 603, also it is stored with system 600 and operates required various programs and data.
CPU 601, ROM 602 and RAM 603 are connected with each other by bus 604.Input/output (I/O) interface 605 is also connected to always
Line 604.
I/O interface 605 is connected to lower component: the importation 606 including keyboard, mouse etc.；It is penetrated including such as cathode
The output par, c 607 of spool (CRT), liquid crystal display (LCD) etc. and loudspeaker etc.；Storage section 608 including hard disk etc.；
And the communications portion 609 of the network interface card including LAN card, modem etc..Communications portion 609 via such as because
The network of spy's net executes communication process.Driver 610 is also connected to I/O interface 605 as needed.Detachable media 611, such as
Disk, CD, magneto-optic disk, semiconductor memory etc. are mounted on as needed on driver 610, in order to read from thereon
Computer program be mounted into storage section 608 as needed.
Particularly, disclosed embodiment, the process described above with reference to flow chart may be implemented as counting according to the present invention
Calculation machine software program.For example, embodiment disclosed by the invention includes a kind of computer program product comprising be carried on computer
Computer program on readable medium, the computer program include the program code for method shown in execution flow chart.?
In such embodiment, which can be downloaded and installed from network by communications portion 609, and/or from can
Medium 611 is dismantled to be mounted.When the computer program is executed by central processing unit (CPU) 601, system of the invention is executed
The above-mentioned function of middle restriction.
It should be noted that computer-readable medium shown in the present invention can be computer-readable signal media or meter
Calculation machine readable storage medium storing program for executing either the two any combination.Computer readable storage medium for example can be --- but not
Be limited to --- electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor system, device or device, or any above combination.Meter
The more specific example of calculation machine readable storage medium storing program for executing can include but is not limited to: have the electrical connection, just of one or more conducting wires
Taking formula computer disk, hard disk, random access storage device (RAM), read-only memory (ROM), erasable type may be programmed read-only storage
Device (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), light storage device, magnetic memory device,
Or above-mentioned any appropriate combination.In the present invention, computer readable storage medium can be it is any include or storage journey
The tangible medium of sequence, the program can be commanded execution system, device or device use or in connection.And at this
In invention, computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal,
Wherein carry computer-readable program code.The data-signal of this propagation can take various forms, including but unlimited
In electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be that computer can
Any computer-readable medium other than storage medium is read, which can send, propagates or transmit and be used for
By the use of instruction execution system, device or device or program in connection.Include on computer-readable medium
Program code can transmit with any suitable medium, including but not limited to: wireless, electric wire, optical cable, RF etc. are above-mentioned
Any appropriate combination.
Flow chart and block diagram in attached drawing are illustrated according to the system of various embodiments of the invention, method and computer journey
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, program segment or code of table, a part of above-mentioned module, program segment or code include one or more
Executable instruction for implementing the specified logical function.It should also be noted that in some implementations as replacements, institute in box
The function of mark can also occur in a different order than that indicated in the drawings.For example, two boxes succeedingly indicated are practical
On can be basically executed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.Also it wants
It is noted that the combination of each box in block diagram or flow chart and the box in block diagram or flow chart, can use and execute rule
The dedicated hardware based systems of fixed functions or operations is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
Being described in module involved in the embodiment of the present invention can be realized by way of software, can also be by hard
The mode of part is realized.Described module also can be set in the processor, for example, can be described as: a kind of processor packet
Include generation module, determining module, judgment module, update module.Wherein, the title of these modules is not constituted under certain conditions
Restriction to the module itself, for example, generation module is also described as " generating the module of multiple article demand events ".
As on the other hand, the present invention also provides a kind of computer-readable medium, which be can be
Included in equipment described in above-described embodiment；It is also possible to individualism, and without in the supplying equipment.Above-mentioned calculating
Machine readable medium carries one or more program, when said one or multiple programs are executed by the equipment, makes
It obtains the equipment and executes following below scheme: generating multiple article demand events；Shipping room is determined for each article demand event；Sentence
It is disconnected whether to trigger the shipping events of the shipping room and whether trigger the event that replenishes of the shipping room；In triggering institute
Shipping events are stated, and/or, in the case where triggering and completing the event that replenishes, update the inventory data of the shipping room.
Above-mentioned specific embodiment, does not constitute a limitation on the scope of protection of the present invention.Those skilled in the art should be bright
It is white, design requirement and other factors are depended on, various modifications, combination, sub-portfolio and substitution can occur.It is any
Made modifications, equivalent substitutions and improvements etc. within the spirit and principles in the present invention, should be included in the scope of the present invention
Within.
Claims (16)
1. a kind of supply chain simulation method characterized by comprising
Generate multiple article demand events；
Shipping room is determined for each article demand event；
Judge whether the shipping events for triggering the shipping room and the event that replenishes for whether triggering the shipping room；
The shipping events are being triggered, and/or, in the case where triggering and completing the event that replenishes, update the shipping room
Inventory data.
2. the method according to claim 1, wherein the article demand event includes: the position of requirement of main body；
Described the step of determining shipping room for each article demand event includes: to calculate each warehouse to the requirement of main body
Distribution cost between position, and using the minimum warehouse of distribution cost as shipping room.
3. according to the method described in claim 2, it is characterized in that, it is described calculate each warehouse to the position of the requirement of main body it
Between distribution cost the step of include:
The manhatton distance between each warehouse and the requirement of main body is calculated according to the following formula；
di,j=| xi-xj|+|yi-yj|
Each warehouse is calculated according to the following formula to the distribution cost between the position of the requirement of main body；
Ci,j=wi,j*di,j
Wherein, di,jFor the manhatton distance between j-th of warehouse and i-th of requirement of main body, xiAnd yiFor i-th requirement of main body
Position coordinates, xjAnd yjFor the position coordinates in j-th of warehouse, Ci,jIt is j-th of warehouse between the position of i-th of requirement of main body
Distribution cost, wi,jTransportation cost weight between j-th of warehouse and i-th of requirement of main body.
4. the method according to claim 1, wherein the article demand event includes: the article of requirement of main body
Demand；
It is described to judge whether that the step of triggering the shipping events of the shipping room includes: by the article demand of the requirement of main body
Amount is compared with the current quantity in stock of the article in the shipping room；If the article demand of the requirement of main body be less than etc.
The current quantity in stock of the article, then trigger the shipping events of the shipping room in the shipping room；Otherwise, institute is not triggered
State the shipping events of shipping room.
5. the method according to claim 1, wherein the thing that replenishes for judging whether to trigger the shipping room
The step of part includes:
By first inventory's threshold value in the inventory strategy (s, S) of the current quantity in stock of the article in the shipping room and the article
S is compared；If the current quantity in stock of the article is less than s in the shipping room, the thing that replenishes of the shipping room is triggered
Part, and replenishment quantity is determined according to the current quantity in stock of second inventory's threshold value S and the article, and generate and mend based on random function simulation
Goods delay time；Otherwise, the event that replenishes of the shipping room is not triggered.
6. the method according to claim 1, wherein the step of generation multiple article demand events, includes:
The position coordinates of requirement of main body and the article demand of the requirement of main body are generated according to random function.
7. according to the method described in claim 6, it is characterized in that, the method also includes:
Preset parameterized template is read, to initialize each simulation parameter；The simulation parameter includes: the random function that emulation is related to
Parameter.
8. the method according to claim 1, wherein the method also includes:
The simulation result of the preset time period is exported；The simulation result includes: quantity in stock and the delivery of shipping room
Total distribution cost in warehouse.
9. a kind of supply chain simulation device, which is characterized in that described device includes:
Generation module, for generating multiple article demand events；
Determining module, for determining shipping room for each article demand event；
Judgment module, for judging whether to trigger the shipping events of the shipping room and whether triggering the shipping room
The event that replenishes；
Update module is used to trigger the shipping events, and/or, in the case where triggering and completing the event that replenishes, update
The inventory data of the shipping room.
10. device according to claim 9, which is characterized in that the article demand event includes: the position of requirement of main body
It sets；
The determining module determines that shipping room includes: that the determining module calculates each warehouse extremely for each article demand event
Distribution cost between the position of the requirement of main body, and using the minimum warehouse of distribution cost as shipping room.
11. device according to claim 10, which is characterized in that the determining module calculates each warehouse and the demand master
Distribution cost between body includes:
The determining module calculates the manhatton distance between each warehouse and the requirement of main body according to the following formula；
di,j=| xi-xj|+|yi-yj|
The determining module calculates each warehouse to the distribution cost between the position of the requirement of main body according to the following formula；
Ci,j=wi,j*di,j
Wherein, di,jFor the manhatton distance between j-th of warehouse and i-th of requirement of main body, xiAnd yiFor i-th requirement of main body
Position coordinates, xjAnd yjFor the position coordinates in j-th of warehouse, Ci,jIt is j-th of warehouse between the position of i-th of requirement of main body
Distribution cost, wi,jTransportation cost weight between j-th of warehouse and i-th of requirement of main body.
12. device according to claim 9, which is characterized in that the article demand event includes: the article of requirement of main body
Demand；
The judgment module judges whether that the shipping events for triggering the shipping room include: the judgment module by the demand
The article demand of main body is compared with the current quantity in stock of the article in the shipping room；If the object of the requirement of main body
Product demand is less than or equal to the current quantity in stock of the article in the shipping room, then triggers the delivery thing of the shipping room
Part；Otherwise, the shipping events of the shipping room are not triggered.
13. device according to claim 9, which is characterized in that the judgment module judges whether to trigger the issuing bay
The event of replenishing in library includes:
The judgment module will be in the inventory strategy (s, S) of the current quantity in stock of the article in the shipping room and the article
First inventory's threshold value s is compared；If the current quantity in stock of the article is less than s in the shipping room, the delivery is triggered
The event that replenishes in warehouse, and replenishment quantity is determined according to the current quantity in stock of second inventory's threshold value S and the article, and be based on random letter
Number is generated and is replenished delay time；Otherwise, the event that replenishes of the shipping room is not triggered.
14. device according to claim 9, which is characterized in that described device further include:
Read module, for reading preset parameterized template, to initialize each simulation parameter；The simulation parameter includes: emulation
The parameter for the random function being related to.
15. a kind of server characterized by comprising
One or more processors；
Storage device, for storing one or more programs,
When one or more of programs are executed by one or more of processors, so that one or more of processors are real
The now method as described in any in claim 1 to 8.
16. a kind of computer-readable medium, is stored thereon with computer program, which is characterized in that described program is held by processor
The method as described in any in claim 1 to 8 is realized when row.
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| CN111597176A (en) * | 2020-05-09 | 2020-08-28 | 山东财经大学 | Teaching simulation training method and system for delaying supply chain generation |
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| US11948163B2 (en) | 2020-04-24 | 2024-04-02 | Target Brands, Inc. | User interface for visualizing output from supply chain replenishment simulation |
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