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In the vehicle routing problem (VRP), it is usually difficult to confederate the cargo and arrange vehicles path. Due to performance reasons, the traditional shortest path algorithm can not be applied to the large scale of VRP. On the basis of the VRP mathematical model, this paper constructs a mixed climbing particle swarm algorithms to solve the problem. First, through coding, the VRP problem is...
As a new short-range wireless sensor network (WSN) communication technology, ZigBee has the advantages of low power consumption and low cost, which makes it widely spread in many fields when it refers to application prospect. This paper analyzes the localization based on ZigBee and introduces its application in real life.
Multiscale entropy (MSE) analysis is a method of measuring the complexity of time series across multiple time scales. The complexity of traffic flow time series generated by NS model is analyzed with MSE. The results show that both of the randomization probability and vehicle density affect the complexity of time headway. And when we focus on large time scale, we found that with the same randomization...
Unified Modeling Language is a visual modeling language based on object-oriented methods. It combines with vehicle management information system of logistics company for system analysis, date analysis and database design, system design. Business process diagram, use case diagram, class diagram and sequence diagram can be drawed by UML at the analysis stage. The theme database, logical and physical...
The road capacity can be increased when utilizing the real-time traffic information uploaded by the floating cars. In symmetrical two-route scenario, the influence of the percentage of floating cars (Pflt) on the performance of MVFS and CCFS is analyzed. Simulation results show that Pflt has little influence on the performance of MVFS, while has great influence on the performance of CCFS. The performance...
With the development of society, the intelligent transportation system has been unable to meet the present traffic demand, the emergence of the Internet of things provides a new road for intelligent traffic development. The comprehensive application of the Internet of things and the license plate recognition technology make intelligent traffic more perfect and more functional. This article will try...
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