The Design and Realization of the Collaborative Control System by Filter for Secret Service based on E-R demand model

This paper makes an investigation and analysis of the traffic environment of urban roads, clarifies the requirements of the communication unit of the vehicle terminal, realizes the real-time communication between the vehicle terminal and the traffic signal controller, the vehicle terminal and the signal control system of the command center. The special service filtering wave cooperative control system based on E-R demand model is studied, and the traffic police application scenarios are fully considered, The system can realize the application of intelligent green wave and special service green wave control mode at the intersection of vehicles according to the signal communication of vehicles with on-board terminal, and prevent the separation of special service fleet, and effectively improve the efficiency of special service control and the safety of the line.