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A collaborative path planning method for drop and pull transport

A path planning, drop and hang technology, applied in data processing applications, forecasting, instruments, etc., can solve problems such as remote location and no involvement

Active Publication Date: 2019-04-05
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing vehicle route planning methods, the main problem is to solve the problem of the fixed collocation of tractors and trailers to complete the delivery task. However, in the real problem of delivering delivery services to multiple customers, some customers are located in remote locations. Tractors and trailers cannot reach these customer locations, and the tractors can only serve or visit these customers. How to make full use of the respective characteristics of tractors, trailers, and drop-and-hook stations to carry out coordination paths between different tractors and trailers Planning is a kind of collaborative path planning problem that needs to be solved urgently, but there is no solution involving related content in the existing methods

Method used

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  • A collaborative path planning method for drop and pull transport
  • A collaborative path planning method for drop and pull transport
  • A collaborative path planning method for drop and pull transport

Examples

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Embodiment Construction

[0070] In this embodiment, a method for collaborative path planning of drop and pull transportation is applied to a distribution service area composed of 1 depot A, M drop and pull stations, N automobile and train customers, and K tractor customers. A vertex of the circumscribed square of the delivery service area is set as the origin o, and the two adjacent sides of the origin o are set as the x-axis and the y-axis respectively to form the coordinate system xoy; in the coordinate system xoy,

[0071] Mark the M drop-and-hook sites as S={S 1 ,S 2 ,...,S m ,...,S M }, 1≤m≤M; S m Represents the m-th drop-and-hook site; the m-th drop-and-hook site S m The position of (x m ,y m );

[0072] Record N car and train customers as VC={VC M+1 ,VC M+2 ,...,VC M+n ,...,VC M+N }; 1≤n≤N; VC M+n Represents the nth car and train customer; the nth car and train customer VC M+n The position of (x M+n ,y M+n ); the nth car and train customer VC M+n The demand is recorded as D M+n ;

[0073] Record K tr...

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Abstract

The invention discloses a collaborative path planning method for drop and pull transportation, which is characterized by including the following steps: 1. Calculating a path cost matrix based on the Euclidean distance between any two nodes; 2. Using the obtained path cost matrix to calculate the drop and pull transportation Model the collaborative path planning problem; 3. Randomly generate an initial solution, and use the simulated annealing algorithm to iteratively solve the initial solution to obtain the optimal solution; 4. Use the solution corresponding to the above optimal solution as the drop-and-pull transport collaborative path planning problem the optimal solution. The invention can make structured decisions on collaborative path planning issues for drop-and-trailer transportation, more accurately provide a collaborative path planning solution for tractors and trailers, improve the efficiency, rationality and accuracy of formulating collaborative path planning solutions, thereby improving logistics distribution. Transport capacity.

Description

Technical field [0001] The invention relates to a collaborative path planning method for drop and pull transportation, which belongs to the field of combined optimization. Background technique [0002] Trailers play an important and irreplaceable role in fulfilling various distribution tasks efficiently, economically, energy-saving and environmentally friendly in the future logistics and transportation. The performance of trailer transportation is inseparable from the assistance of the tractor it relies on. Therefore, in the path planning of the fleet, it is particularly important to realize the cooperative path planning of the tractor and the trailer. [0003] Among the existing vehicle path planning methods, the main solution is to solve the problem of the fixed combination of tractors and trailers to complete the delivery task. In the practical problem of delivering delivery services to multiple customers, some customers are geographically remote. The tractor-trailer cannot re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/08
CPCG06Q10/047G06Q10/08355G06Q10/08
Inventor 马华伟胡明明胡笑旋罗贺靳鹏夏维范奉伟
Owner HEFEI UNIV OF TECH
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