车联网仿真实验平台搭建与参数校正研究

Study on Construction of Connected-vehicle Network Simulation Experimental Platform and Its Parameters Correction

车联网尚处于实验研究阶段,通过搭建真实车联网环境来验证各种实验研究的难度较大且成本较高,鉴于此,文章选取广州市实际路网作为实验区域,利用Vissim交通仿真软件,给出了车联网仿真实验平台的具体搭建过程,并考虑到模型默认参数不一定适合实际道路交通运行情况,提出采用正交试验法对该平台的模型参数进行校正。结果表明:校正后的仿真结果与实测数据接近,误差在可接受范围之内,能真实再现路网的交通运行状况,为后续进行车联网环境下的各种算法验证奠定了基础。

Connected-vehicle network is still in the experimental research stage.It is difficult and costly to verify various experimental studies by building a real connected-vehicle network environment.Therefore,this paper chooses the actual road network of Guangzhou as the experimental area,and propose the concrete construction process of a connected-vehicle network simulation experimental platform by using Vissim traffic simulation software.On the other hand,considering that the default parameters of the model are not necessarily suitable for the actual road traffic operation,this paper proposes the orthogonal experiment method to correct the model parameters of the platform.The results show that the corrected simulation results are close to the measured data,and the error is within acceptable range.It can truly reproduce the traffic operation status of the road network,which lays a foundation for the subsequent verification of various algorithms in connected-vehicle network environment.