高速公路传感网优化布局研究

Research on Optimized Layout for Expressway Sensor Network

为更好地满足高速公路对交通运行状态信息的感知需求,使用需求与感知耦合性算法开展了各类传感设备单独或组合使用时的检测条件和精度研究。研究结果表明,通过优化设计传感设备与传感网络的时空布局,实现了全网或特定需求路段的最优布设方案,有效提高了设备利用率,降低了布设成本,同时提高了路网交通运行状态监测、管理的准确性和可靠性。以山东高速为算例,计算得出山东高速某路段的布设间距和传感器设备选型方案,当成本需求为6万~10万元时,可选取的最优传感设备方案为雷视一体机和雷达检测传感器的组合方案,其平均布设间距为835.2 m。相关研究结论可为类似高速公路传感网优化布局设计提供参考与借鉴。

In order to better meet the perception needs of traffic operation status information for expressway,this study applies the Demand-Perception Coupling Algorithm to investigate the detection conditions and accuracy of various types of sensing devices used alone or in combination.The findings reveal that designing the optimal temporal and spatial layout of sensing equipment and sensing networks enable the optimal deployment plan for the entire network or sections with specific demand,which improved the utilization rates and decreased the deployment costs.Moreover,it enhances the accuracy and reliability of monitoring and managing for the road network traffic.Taken Shandong expressway as an example,the layout spacing and selection plan for sensor equipment in a particular section are calculated.When the cost ranges from 6000~100000 yuan,the optimal scheme is combining the thunder video integrated machine with radar with an average spacing of 835.2 meters.These research offer valuable insights for optimizing the layout design of similar expressway sensor networks.