CN110516842A - A kind of the two stages coordination and optimized configuring method of Large Steel Roll Sushi stream - Google Patents
A kind of the two stages coordination and optimized configuring method of Large Steel Roll Sushi stream Download PDFInfo
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Abstract
A kind of the two stages coordination and optimized configuring method of Large Steel Roll Sushi stream, belong to logistics transportation field.This method is unreasonable to the vehicle and goods matching for solving to generate in large-scale steel coil transportation, the not high problem of vehicle load utilization rate.This method judges whether to need using two stages logistic pattern after obtaining logistics order information using global Logistical coordination unit, if it is a stage feasible logistics scheme in warehouse for finished product to region library and the two-stage feasible logistics scheme of region library to destination are generated, and according to the logistics scheme in two stages of objective optimization, then loading optimization unit in region carries out coil of strip loading optimization according to target, until all vehicles load factor be greater than 80%, form final optimization logistics scheme.This method comprehensively considers logistics cost and vehicle load utilization rate, fully considers the utilization rate in vehicle goods yard, maximally utilizes vehicle load, buffers logistics peak pressure, vehicle load factor is improved, to reduce whole logistics cost.
Description
Technical field
The present invention relates to the coordination of the two stages of coil of strip logistics and optimized configuring methods, are related to passing through in large-scale steel coil transportation
The coil of strip material-flow method of two stages coordination optimization is realized in global coordination and the optimization of region vehicle load.
Background technique
The problems such as transport of large-scale coil of strip, it is remote that there are transportation ranges, and the average turn-round rate of rolling stock is low, and vehicle load factor is not high.Due to
The transport of certain large size coil of strips, is different from coal and other items, it is necessary to entire volume transport is unable to unpacking, and every single-item weight compared with
Greatly, if matching without vehicle and cargo, it is easy to the phenomenon that insufficient vehicle loading or overload occur.The owner of cargo and acknowledgement of consignment
Tonnage is settled accounts by weight when quotient settles accounts, and can't be considered the utilization rate or non-full load conditions of vehicle, be thereby resulted in vehicle load
It is commonplace using unreasonable situation；Simultaneously for large-scale group, manufacturing enterprise, there are multiple finished product libraries to be distributed in different
Place, client is also geographically distributed in different places, therefore considers logistics cost and vehicle utilization efficiency, passes through foundation
Warehouse for finished product-region middle database two-stage logistics system improves vehicle load factor, to reduce object to buffer logistics peak pressure
Flow cost.
Summary of the invention
The present invention is directed to the Complicated Steel Roll Sushi streaming system of large-scale steel production group, provides a kind of two stages and coordinates and optimization
Stowage method.Particular content includes:
Step 1: global Logistical coordination unit obtains logistics order information from ordering system, comprising: O/No., product board
Number, weight, warehouse for finished product number, customer number, destination；
Step 2: global Logistical coordination unit judges order whether from single warehouse for finished product to single goal, if it is,
Logistics is distributed to the distance between destination information according to the weight and quantity and warehouse for finished product of coil of strip by logistics vehicles allocation unit
Vehicle, if it is possible to distribute enough long-distance logistics vehicles, then according to the vehicle of distribution and order information, warehouse for finished product, destination
Information generates transport project；It is carried out if it cannot distribute enough coachs according to step 3；
Step 3: global Logistical coordination unit inquires all region libraries for covering destination according to destination, according to order
Information inquires all warehouse for finished products that the order is related to, and then generates a stage feasible logistics scheme and the area in warehouse for finished product to region library
The two-stage of domain library to destination feasible logistics scheme, each stage have more than one feasible program；
Step 4: the warehouse for finished product and region library and coil of strip that logistics vehicles allocation unit is related to according to some feasible program
Weight, quantity information distribute first stage logistics vehicles；
Step 5: the distance of the information of vehicles and warehouse for finished product that logistics cost computing unit is distributed according to previous step to region library
Information, coil of strip quantity, coil of strip weight calculate first stage logistics cost；
Step 6: region library and destination that logistics vehicles allocation unit is related to according to some feasible program and coil of strip weight,
Quantity information distributes vehicle by logistics vehicles allocation unit；
Step 7: the information of vehicles and region library distance to destination that logistics cost computing unit is distributed according to previous step
Information, coil of strip weight, quantity information calculate two-stage logistics cost；
Step 8: global Logistical coordination unit calculates total flow according to a stage logistics cost and two-stage logistics cost
Cost；
Step 9: global Logistical coordination unit according to's
Target (wherein, N1For a stage vehicle number, N2For two-stage vehicle number, β1、β2The cost system in a respectively stage and two-stage
Number), solve logistics scheme of the minimum logistics scheme of overall cost as the order；
Step 10: whether there is vehicle of the vehicle load factor less than 80% in the loading optimization unit judges scheme of region, if
Have then according to targetCoil of strip loading optimization is carried out, then by global Logistical coordination unit
According to the execution logistics schemes generation transport project in each stage；
Step 11: if the load factor of all vehicles is greater than 80%, global Logistical coordination unit is according to each stage
Execute the transport project of logistics schemes generation, the information from warehouse for finished product to the region library stage include: order number, finished product library name and
ID, region library name and ID, vehicle, license number, material number, material type, weight of material；From region library to the letter in destination stage
Breath includes: order number, region library name and ID, destination title and ID, vehicle, license number, material number, material type, material weight
Amount.
The logistics cost computing unit calculates the object of the vehicle according to the logistics distance of each car, vehicle, goods weight
Cost is flowed, all logistics vehicles being then related to for each logistics scheme are added up, specific formula for calculation are as follows:Wherein DiFor the logistics distance of i-th vehicle, FiIt is i-th vehicle apart from oil consumption cost, WiIt is i-th
The load-carrying of vehicle, αiCoefficient of depreciation, N for i-th vehicle are the vehicle fleet of a logistics scheme.
The logistics vehicles allocation unit according to the distance between the logistics warehouse for finished product of order, region library, destination and
Coil of strip weight and quantity distribute vehicle, specific distribution principle are as follows: be first divided into vehicle according to the vehicle condition of vehicle and loading capacity
Long-distance (being greater than 500 kilometers), midway (being greater than 100 less than 500 kilometers), short distance (less than 100 kilometers), then according to transportation range
Vehicle can be used with coil of strip weight and quantity inquiry, finally distributes vehicle according to the loading capacity of coil of strip quantity and available vehicle.Usually
The vehicle of short-distance logistics can be executed more than coach, therefore preferential distribution coach gives through logistics.
The warehouse for finished product refers to the warehouse for finished product inside coil of strip manufacturing enterprise, and the product for being typically different type is stored in
Different warehouse for finished products.
The region library refers to common carrier to reduce the logistics that logistics cost is built between warehouse for finished product and destination
Middle database, commonly used in being redistributed to steel coil transportation vehicle, to guarantee the peak use rate of vehicle.
The destination refers to the warehouse of steel roll of order client.
The global Logistical coordination unit is responsible for generating feasible logistics scheme, and with logistics ordering system, logistics vehicles
Allocation unit, logistics cost computing unit, region loading optimization unit carry out information exchange.And according toTarget (wherein, N1For a stage vehicle number, N2For second order
Section vehicle number, β1、β2The respectively cost coefficient in a stage and two-stage) two stages of optimization logistics scheme, utilization is non-linear
There is constraint quadratic programming to solve logistics scheme of the minimum logistics scheme of overall cost as the order
The region loading optimization unit optimizes the vehicle load in Regional Logistics scheme.
The advantages of this method: the transport for large-scale coil of strip, by establishing warehouse for finished product-region middle database two-stage logistics body
System, comprehensively considers logistics cost and vehicle load utilization rate, fully considers the utilization rate in vehicle goods yard, maximally utilizes vehicle load
Weight buffers logistics peak pressure, vehicle load factor is improved, to reduce whole logistics cost.
Detailed description of the invention
Fig. 1 is the two stages coordination and the structural representation of optimized configuring method of a kind of Large Steel Roll Sushi stream of the present invention
Figure.
Fig. 2 is that a kind of two stages of Large Steel Roll Sushi stream of the present invention coordinate and the logistics of optimized configuring method is illustrated
Figure.
Fig. 3 is that a kind of two stages of Large Steel Roll Sushi stream of the present invention coordinate and the process of optimized configuring method is illustrated
Figure.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
As shown in Figure 1, the present invention by global Logistical coordination unit, logistics vehicles allocation unit, logistics cost computing unit,
Region loading optimization unit and order input module composition.Wherein order input information includes:
Order number, the coil of strip trade mark, coil of strip weight, coil of strip quantity, coil of strip store warehouse for finished product, customer ID, destination, delivery
Phase；
Global Logistical coordination unit is ranked up according to the delivery date of order according to length of time, and is selected nearest one week
Order formulates Logistic Scheduling plan.
Global Logistical coordination unit optimizes logistics scheme for each order, and specific implementation step is to illustrate:
Certain order needs to transport S from warehouse for finished product 11A total W of coil of strip1Ton transports S from warehouse for finished product 22A coil of strip W2Ton, purpose
Ground is 2；
The region library that 2 can be arrived at the destination in lookup region library is region library 1, region library 2, region library 3；
Calculating warehouse for finished product 1, warehouse for finished product 2 arrive the distance in region library 1, region library 2, region library 3, obtain 6 distance D11-
D16, zoning library 1, region library 2, region library 3 arrive destination distance, obtain 3 distance D21-D23；
A stage feasible scheme is found out, this example there are 3, and respectively warehouse for finished product 1 and warehouse for finished product 2 arrives region library 1, finished product
Library 1 and warehouse for finished product 2 arrive region library 2, warehouse for finished product 1 and warehouse for finished product 2 and arrive region library 3；
Two-stage feasible scheme is found out, this example there are 3, and purpose is arrived in respectively region library 1 to destination 2, region library 2
Destination 2 is arrived in ground 2, region library 3；
Global Logistical coordination cell call logistics vehicles allocation unit distributes logistics vehicles according to a stage feasible program
N11、N12、N13；
Global Logistical coordination cell call logistics vehicles allocation unit distributes logistics vehicles according to two-stage feasible program
N21、N22、N23；
Global Logistical coordination cell call logistics cost computing unit calculates the logistics cost of a stage feasible program, meter
Calculation method isSuch as feasible program 1 is calculated as
Global Logistical coordination cell call logistics cost computing unit calculates the logistics cost of two-stage feasible program, meter
Calculation method is same as above；
Global Logistical coordination unit calculates overall cost according to two stage logistics cost, and calculation method is M=β1*M1+
β2*M2β1+β2=1, wherein M1、M2A respectively stage, two-stage logistics cost, β1、β2A respectively stage and two-stage at
This Split Factor
Global Logistical coordination unit according toTarget,
Solve logistics scheme of the minimum logistics scheme of overall cost as the order.Wherein, N1For a stage vehicle number, N2For second order
Section vehicle number.
After region loading optimization unit obtains the logistics scheme of each order, calculate in two scheme of stage in each region library
The load factor w/G of vehicle, wherein w is vehicle allocation loading capacity, and G is vehicle dead weight, is less than if there is load factor
80% vehicle then carries out loading optimization, specific implementation step to by all vehicles in the region library are as follows:
The logistics vehicles number N, the goods yard number S of each vehicle by region library are calculated firsti, dead weight Wi, contained
Coil of strip quantity Mi, each coil of strip weight Gsj；
Determine optimization aim
Determine constraint condition Wi≥Wsi,Si≥Mi,；
Above-mentioned optimization problem, the coil of strip quantity of each car after being optimized are solved using nonlinear restriction optimization algorithm
MoiAnd Gosj；
According to MoiAnd GosjGive this N number of vehicle prestowage again；
Global Logistical coordination unit generates the plan of two stages logistics transportation and is handed down to according to redistributing vehicle and prestowage
Logistics executes system.
The global Logistical coordination unit, region loading optimization unit, logistics cost computing unit, logistics vehicles distribution
Unit is the computer program mutually communicated.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (3)
1. a kind of two stages of Large Steel Roll Sushi stream coordinate and optimize stowage method, it is characterised in that:
Step 1: global Logistical coordination unit obtains logistics order information from ordering system；
Step 2: global Logistical coordination unit judges order whether from single warehouse for finished product to single goal, if it is, by object
It flows vehicle allocation unit and distributes logistics vehicles to the distance between destination information according to the weight and quantity and warehouse for finished product of coil of strip,
It is raw according to the vehicle and order information, warehouse for finished product, destination information of distribution if enough long-distance logistics vehicles can be distributed
At transport project；It is carried out if it cannot distribute enough coachs according to step 3；
Step 3: global Logistical coordination unit inquires all region libraries for covering destination according to destination, believed according to order
Breath inquires all warehouse for finished products that the order is related to, and then generates a stage feasible logistics scheme and the region in warehouse for finished product to region library
The two-stage of library to destination feasible logistics scheme, each stage have more than one feasible program；
Step 4: warehouse for finished product and region library and coil of strip weight that logistics vehicles allocation unit is related to according to each feasible program,
Quantity information distributes first stage logistics vehicles；It determines from warehouse for finished product to the information in region library stage；
Step 5: the distance in information of vehicles and warehouse for finished product to region library that logistics cost computing unit is distributed according to previous step is believed
Breath, coil of strip quantity, coil of strip weight calculate first stage logistics cost；
Step 6: region library and destination that logistics vehicles allocation unit is related to according to each feasible program and coil of strip weight, quantity
Information distributes vehicle by logistics vehicles allocation unit；It determines from region library to the information in destination stage；
Step 7: information of vehicles and region library distance to destination that logistics cost computing unit is distributed according to previous step are believed
Breath, coil of strip weight, quantity information calculate two-stage logistics cost；
Step 8: global Logistical coordination unit according to a stage logistics cost and two-stage logistics cost calculate total flow at
This；
Step 9: global Logistical coordination unit according toTarget,
Wherein DiFor the logistics distance of i-th vehicle, FiIt is i-th vehicle apart from oil consumption cost, WiLoad-carrying, α for i-th vehicleiIt is i-th
Coefficient of depreciation, the N of vehicle1For a stage vehicle number, N2For two-stage vehicle number, β1Cost coefficient, β for a stage2For second order
The cost coefficient of section, solves logistics scheme of the minimum logistics scheme of overall cost as the order；
Step 10: whether having vehicle of the vehicle load factor less than 80% in the loading optimization unit judges scheme of region, if so, then
According to targetCarry out coil of strip loading optimization, then by global Logistical coordination unit according to
The execution logistics schemes generation transport project in each stage；
Step 11: if the load factor of all vehicles is greater than 80%, global Logistical coordination unit holding according to each stage
Row logistics schemes generation transport project；
DescribedWherein N is the logistics vehicles number by region library, SiFor i-th vehicle
Goods yard number, WiFor i-th vehicle dead weight, MiFor the contained coil of strip quantity of i-th vehicle；, according to optimization aim, constraint condition
Wi≥Wsi,Si≥Mi, GsjFor each coil of strip weight on vehicle, solved using nonlinear restriction optimization algorithm
Above-mentioned optimization problem, the coil of strip quantity M of each car after being optimizedoiWith coil of strip weight Gosj。
2. dispatching method according to claim 1, it is characterised in that: the global Logistical coordination unit is from ordering system
Obtaining logistics order information includes: O/No., product grade, weight, warehouse for finished product number, customer number, destination；Described
Information from warehouse for finished product to the region library stage includes: order number, finished product library name and ID, region library name and ID, vehicle, vehicle
Number, material number, material type, weight of material；Described includes: order number, region from region library to the information in destination stage
Library name and ID, destination title and ID, vehicle, license number, material number, material type, weight of material.
3. coordination approach according to claim 1, it is characterised in that: the logistics cost computing unit is according to each car
Logistics distance, vehicle, goods weight calculate the logistics cost of the vehicle, the property being then related to for each logistics scheme
Stream vehicle is added up, specific formula for calculation are as follows:Wherein N is that the vehicle of a logistics scheme is total
It counts, then basisTwo stages of objective optimization logistics side
Case has constraint quadratic programming to solve the minimum logistics scheme of overall cost as the logistics side of the order using non-linear
Case.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111652438A (en) * | 2020-06-04 | 2020-09-11 | 上海燕汐软件信息科技有限公司 | Dynamic optimization method and device for logistics line |
| CN113283739A (en) * | 2021-05-20 | 2021-08-20 | 北京京东振世信息技术有限公司 | Task allocation method, device, equipment and storage medium |
| CN113780949A (en) * | 2021-09-14 | 2021-12-10 | 福建三钢闽光股份有限公司 | Truck steel plate and steel coil mixed loading method based on order information |
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| CN113780949B (en) * | 2021-09-14 | 2023-09-05 | 福建三钢闽光股份有限公司 | Truck steel plate and steel coil mixed loading method based on order information |
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