Centralized Coordinated Traffic Signal Manufacturers

The function of traffic signal controller:

1: Multi-cycle control function: The control parameters of the corresponding period can be set according to the traffic flow of each intersection at different periods, and then the start time and end time of the corresponding period can be automatically switched according to the clock, and then the corresponding plan can be executed.

2: Induction control function: That is, when the signal is set to the induction control mode, under the action of the induction control module, the branch stage is executed only when the branch detects a vehicle, otherwise, the branch road will be in the absence of human traffic, and the originally set green light time will be moved to the phase of the next highway so that the main road can get more green light time.

3: Adaptive control function: That is, based on real-time traffic flow detection and the storage of historical traffic flow models in traffic signals, a set of optimal control parameters are solved through real-time optimization calculation, storage and adjustment of green light time, and adaptive mode control basic parameters in each stage of the next cycle, such as saturated flow, maximum and minimum green light time, maximum and minimum signal cycle, etc., to achieve optimal control of road network traffic.

4; Manual execution function: It has a manual execution function, that is, through a friendly human-machine interface, the on-duty personnel can set the individual unlocking or prohibiting function of a specific mode or a specific lane on site, and can also set the unlocking or prohibiting to flexibly arrange the time through the menu.

5: Network communication function: The network communication function refers to the network communication function between the controller and the traffic side controller and the traffic control center. According to a certain communication protocol, the traffic signal can receive and execute all signals sent by the control center, support and execute signal functions.

6: Real-time network coordination control: Through the connection with the command center communication machine, two-way real-time data transmission is realized; the signal machine can report various traffic parameters and working status in time; the central control system can issue real-time control commands for remote synchronous stepping and remote control.

7: Remote setting of operating parameters: The central control system can download various optimized control schemes to the signal control machine for storage in time, so that the signal control machine can operate according to the scheme formulated by the command center even when it is running independently.

8: Automatic downgrade processing: When the communication is abnormal or interrupted, it has an automatic downgrade processing function.

9: On-site modification of operating parameters: Control schemes and parameters can also be modified on-site through the control panel, or directly input and modified by connecting a portable computer to the serial interface.

10: Cable-free self-coordination control: Relying on the built-in precision clock and optimized scheme configuration, cable-free self-coordination control can be achieved without system or communication interruption.

11: Collection and storage of traffic parameters: After configuring the vehicle detection module, it can report the status of the detector in real time and automatically collect, store and transmit traffic parameters such as traffic volume and occupancy rate.

12: Single-point induction control: When the signal machine is operating independently, semi-induction or full-induction control can be performed according to the detection parameters of the vehicle detector.

13: Time period and variable cycle control: When the signal machine is operating independently, according to the multi-cycle control scheme existing in the signal machine, control can be achieved according to different dates, time periods and variable cycles.

14: On-site manual control: Manual step control or manual forced yellow flashing control can be performed at the intersection through the control panel.

15: Special control methods such as bus priority can be implemented by expanding the corresponding interface modules and detection equipment.