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Distributed traffic simulation system and simulation method based on variable region division

A traffic simulation and area division technology, which is applied in the direction of road vehicle traffic control system, traffic control system, special data processing application, etc., can solve the problems of adjusting the simulation area division, unable to make full use of computing resources, and unable to balance the calculation load, etc. Achieve the effect of avoiding the load imbalance problem and improving the running speed of the distributed simulation

Active Publication Date: 2012-07-04
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The real-time speed of distributed simulation depends on the simulation server with the slowest real-time speed. The distributed traffic simulation method using fixed area division cannot dynamically adjust the simulation area division according to the regional population changes, so that the calculation load cannot be balanced and the calculation resources cannot be fully utilized. Simulation speed improvement is limited

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  • Distributed traffic simulation system and simulation method based on variable region division
  • Distributed traffic simulation system and simulation method based on variable region division
  • Distributed traffic simulation system and simulation method based on variable region division

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[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. While illustrations of parameters including particular values ​​may be provided herein, it should be understood that parameters need not be exactly equal to the corresponding values, but rather may approximate the values ​​within acceptable error margins or design constraints.

[0020] In the present invention, according to dividing a long time period into a plurality of continuous short time periods, the change of the distribution of people and vehicles on the road network in the short time period is much smaller than the change of the distribution of people and vehicles in the total time period. In each short period of time, a regional division scheme is adopted according to the distribution of people and vehicles to reduc...

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Abstract

The invention discloses a distributed traffic simulation system and a simulation method based on variable region division. According to the invention, a long time segment is divided into a plurality of continuous short time segments; change of distribution of people and vehicle on road network in the short time segments is much smaller than that in the total time segment; and in each short time segment, a region division scheme is adopted according to the distribution rule of people and vehicles, and the change of the number of people and vehicle in the time segments in the region is decreased, therefore, the purpose of balancing the load of each simulation server is achieved.

Description

technical field [0001] The invention relates to the field of information technology industry simulation and simulation technology, in particular to a distributed traffic simulation system and simulation method based on variable area division. Background technique [0002] Optimal scheduling and control based on traffic simulation is considered to be an effective method to optimize vehicle scheduling and signal control schemes and alleviate traffic congestion. Large cities have the characteristics of large road network scale and large number of people and vehicles. Therefore, a large area is usually divided into multiple small areas and distributed parallel simulations on multiple computers to achieve the purpose of improving the simulation speed. [0003] At present, all the implementation technologies of distributed traffic simulation mainly include Service Oriented Architecture (SOA for short) and High Level Architecture (HLA for short), both of which adopt fixed regional ...

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Application Information

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IPC IPC(8): G06F17/50G08G1/00
Inventor 王飞跃刘胜朱凤华熊刚
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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