Multi-period split distribution method and device for emergency materials based on inventory gap risk

An emergency material and multi-period technology, applied in the field of material distribution and vehicle routing, can solve the problem of not giving an economically feasible vehicle routing plan, and achieve the effects of increasing full load rate, reducing overall loss, and improving utilization efficiency

Active Publication Date: 2022-01-07
SHENZHEN URBAN TRANSPORT PLANNING CENT
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Problems solved by technology

In the existing technology, the multi-period emergency material distribution problem only focuses on the material distribution problem, that is, only focuses on the source and destination of the material and the corresponding quantity, and does not give an economically feasible vehicle routing scheme

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  • Multi-period split distribution method and device for emergency materials based on inventory gap risk
  • Multi-period split distribution method and device for emergency materials based on inventory gap risk
  • Multi-period split distribution method and device for emergency materials based on inventory gap risk

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Embodiment Construction

[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0063] In order to facilitate the understanding of the present invention, the key terms involved in the present invention are briefly explained.

[0064] The vehicle routing problem (VRP) is to solve the optimal route set for a certain vehicle group to provide travel services for a certain customer group. Multi-cycle material scheduling refers to multiple material scheduling according to different cycle intervals in a long period of time to find the optimal combined scheduling scheme under different cycles. In traditional research, the multi-period scheduling problem is modeled as an allocation / assignment problem, which generally does not care about specific vehicle transportation routes and logistics-related attributes such as vehicle cap...

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Abstract

The invention discloses a method and device for multi-period division and distribution of emergency materials based on the risk of inventory gap. The capacity divides the material point into several virtual node sets of equal parts; solves the multi-period vehicle route model, obtains the material scheduling plan of the current scheduling cycle, executes the material scheduling plan of the current scheduling cycle, and updates the reserve of material points, according to the material scheduling plan Update the virtual node service status; calculate the material gap at each material point at the end of the current dispatch cycle according to the preset cycle interval and material consumption speed, and update the virtual node service status according to the preset cycle interval and material consumption speed, and update the multi-cycle vehicle routing model The objective function of , enters the calculation of the next scheduling cycle. The invention can generate the sequence of vehicle use and visiting sites at the execution level, so that the optimization result has more practical reference value.

Description

technical field [0001] The invention relates to the technical field of material distribution and vehicle routing, in particular to a method and device for multi-period division and distribution of emergency materials based on inventory gap risk. Background technique [0002] All kinds of sudden disasters and accidents are seriously destructive and cause great damage to people's daily life. After a disaster occurs, emergency supplies need to be delivered to the disaster-stricken point. In the prior art, the multi-period emergency material distribution problem only focuses on the material distribution problem, that is, only focuses on the source and destination of the material and the corresponding quantity, and does not give an economically feasible vehicle routing scheme. Contents of the invention [0003] The problem solved by the invention is that the existing material distribution problem does not give an economically feasible vehicle routing scheme. [0004] The pres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q10/08
CPCG06Q10/04G06Q10/0635G06Q10/083
Inventor 张晓春朱远祺陈振武邢锦江吴宗翔
Owner SHENZHEN URBAN TRANSPORT PLANNING CENT
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