SHANGGUAN Wei, GUO Hong-qian, LIU Peng-hui, CAI Bo-gen, WANG Jian. Visual simulation model of CVIS[J]. Journal of Traffic and Transportation Engineering, 2015, 15(3): 118-126. doi: 10.19818/j.cnki.1671-1637.2015.03.014
Citation: SHANGGUAN Wei, GUO Hong-qian, LIU Peng-hui, CAI Bo-gen, WANG Jian. Visual simulation model of CVIS[J]. Journal of Traffic and Transportation Engineering, 2015, 15(3): 118-126. doi: 10.19818/j.cnki.1671-1637.2015.03.014

Visual simulation model of CVIS

doi: 10.19818/j.cnki.1671-1637.2015.03.014
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  • Author Bio:

    SHANGGUAN Wei(1979-), male, associate professor, PhD, +86-10-51687111, wshg@bjtu.edu.cn

  • Received Date: 2014-12-27
  • Publish Date: 2015-06-20
  • Based on the simulation of cooperative vehicle-infrastructure system(CVIS), the realtime traffic simulation of local region traffic network was taken as an example, the visual simulation model library of CVIS was constructed, and the infrastructure and framework of visual simulation system were established.Visual simulation was integrated as a federate member of whole simulation system, and the typical visual simulation functional models for vehicle-vehicle and vehicle-infrastructure information interactions were built.The visual simulation functional models were divided by using LOD reduction technique, and 5LOD models with different detail degrees were built.By using the functional nodes of DOF, LOD and switch, the related models like intersection signal lamp and vehicles movement in the typical application scenarios were optimized based on node structure, and a similar model geometry node hierarchy structure was constructed.CVIS visual simulation platform including HLA/RTI information interaction andcontrol module, vehicle-infrastructure cooperative data processing module, information interaction module, model guidance and control module, view angle switching module and dynamic display module of model status parameters were constructed.Typical traffic scenario was visually simulated by using modeling optimization technique.Simulation result indicates that by using LOD reduction technique, the model reduction ratio reaches 95.5%, and memory occupancy ratio decreases by 86.3%.By using visual simulation method, rendering efficiency is improved, the efficiency of system simulation is accelerated, and the feasibility of simulation method is verified at typical cooperative vehicle infrastructure scenario.

     

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