Optimizing method of central real-time dynamic traffic guidance path under large-scale road network
A route optimization, real-time dynamic technology, applied in the traffic control system of road vehicles, traffic control system, arrangement of variable traffic instructions, etc., can solve the problem that the optimal route cannot be obtained in a short time, and achieve the purpose of alleviating urban traffic congestion. Network traffic congestion, the effect of lower prices
Inactive Publication Date: 2012-05-23
JILIN UNIV
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Problems solved by technology
At present, due to the inability to overcome the technical problem of large-scale road network path optimization, the optimal path between all point pairs in a large-scale road network cannot be obtained in a short period of time, and the central induction method has not really been used in a large-scale road network environment. practical application in engineering
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[0026] The data acquisition module is responsible for establishing a connection with the Oracle database, and dynamically reads the real-time updated traffic road network topology and road section road resistance data from the Oracle data table at a certain time interval, that is, the start number and end point of all road sections in the entire road network The serial number and section road resistance data are assigned to a matrix triplet with N rows and 3 columns, and the matrix triplet data is uploaded to the server master node computer through the client communication interface module, and the server master node computer passes the server communication interface module Receive the matrix triplet data of N rows and 3 columns uploaded by the client computer and store the start number, end point number and road resistance data of all road sections in the whole road network. The network decomposition module is responsible for the matrix triplet data received by the server commu...
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The invention discloses an optimizing method of a central real-time dynamic traffic guidance path under a large-scale road network and relates to an optimization implementing method of a traffic guidance path. A device for implementing the optimizing method comprises a client computer, a server main node computer, a plurality of server slave node computers, an information exchanger and terminal equipment, wherein traffic road network topological structures and road section roadlock data which are acquired by a data acquisition module of the client computer are uploaded to the server main nodecomputer, and through the processing of the server computer, an optimal path result is sent to the terminal equipment through the client computer. The method has important significance to relieve city road network traffic jams and greatly reduces the price of vehicle mounted equipment.
Description
technical field [0001] The invention belongs to the field of urban traffic guidance, and relates to a central real-time dynamic traffic guidance route optimization realization method of an urban intelligent traffic guidance system under a large-scale road network. Background technique [0002] Urban traffic guidance is mainly divided into distributed guidance and central guidance. Most of the existing urban traffic guidance adopts a distributed guidance method, that is, the vehicle navigation device installed in the vehicle independently calculates the optimal route, and guides the route based on the calculation result. Since the distributed guidance method only considers the travel needs of vehicles for route optimization, it is easy to cause traffic congestion transfer problems. The central guidance method starts from the perspective of the entire road network balance. By calculating the optimal path between all point pairs in the entire road network, it can not only guid...
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IPC IPC(8): G08G1/09G08G1/0968G06F17/30H04L29/06
Inventor 杨兆升于德新杨楠龚勃文林赐云郑黎黎于悦杨庆芳王薇曹宝贵
Owner JILIN UNIV