The current subway system has been systematically equipped with security screen doors. Metro screen doors are a very important safety barrier for the safe operation of the subway and the protection of passengers' personal safety. The automation experts of Swiss Reynolds Group, who always focus on automation and drive systems, have carried out effective research and practice work in the field of screen doors, providing customers with a safe and reliable set of world-leading centralized network management and distributed site intelligent control structure. Subway screen door control drive system solution.
System Requirements
The system is divided into three levels of sites for network monitoring: gate site control station, station monitoring station, and total monitoring station.
On-site control station: Opens and closes the screen door at the specified time according to the instruction. As well as emergency handling such as "clamping people" and other emergencies, automatic safety actions are performed to ensure the safety of personnel. At the same time, the site of this level needs to complete the action command receiving with the monitoring station of the higher station, complete the feedback of the situation and the upload of the door status information and other field bus communication tasks.
Platform monitoring station: Each station has a monitoring room, responsible for the monitoring and management of all systems of the station. The station monitoring station, which is responsible for monitoring all the screened doors on the platform, is naturally located in the monitoring room. The function of the station at this level is to monitor all the screen doors of the station, perform overall management, and communicate with the general monitoring station at the same time.
The total monitoring station: Networking of each station monitoring station, and the entire subway line shielding door scheduling management in the total monitoring station.
The Renault Group's automation products provide an ideal technical basis for this centralized management of distributed control fieldbus network structure drive systems.
Design
Functional implementation
Door control station
In the field control station, we use Reno's intelligent programmable AC servo system as a single-door control unit. R&R intelligent servo controller adopts a dual-core processor and is a super field controller capable of simultaneously accomplishing precise control of the gate servo motor, on-site data acquisition, control algorithm processing, signal output, and network communication. Single door control unit. This control unit can not only complete the door opening and closing and other drive functions, but also can instantly process various logic control functions according to a user-written program in the servo, as well as monitor the state of various signals such as sensors and actuators on the door, and complete the field bus. Communication function.
Each single-door control unit (Rino Smart AC Servo System) acts as a slave to the fieldbus and builds a fully-driven distributed control system.
The servo driver uses qualitative time-sharing and multi-tasking high-level language programming to achieve flexible real-time single-door control.
- Fast cycling tasks
- User-defined cyclic task
- Motion control tasks
- High Level Language (IEC1131)
The single-door control unit (RINO Smart AC Servo System) comes with several digital and analog input and output points that can be programmed and controlled by the user, so that the data status information acquisition can be completed locally in a single door field, and the program logic control. , Output execution processing and other functions to complete distributed field control.
In addition to fully meeting the CanOpen fieldbus interface with a maximum range of 180 meters, the single-door control unit also has an RS232/422 interface, making it extremely easy to perform diagnostics and monitoring on a single door site.
Station monitoring station
The station monitoring station responsible for monitoring all the screened doors of this station can be implemented using a Renault integrated control display unit that supports CAN bus or a programmable computer controller plus human-machine interface. Powerful high-level language programming and debugging diagnostic software helps users complete rich and intuitive server graphics and animation, database, and other server functions, thus perfect platform level for door blocking, motor overheating or inflexible fences of the station's screen doors. monitor.
Total monitoring station
The terminal monitoring server adopted by the total monitoring station can be selected according to the needs of users in the numerous IPC and control display panel product lines of Renault to realize the overall monitoring and management of the entire subway line shielding door.
to sum up
Renault Group's subway screen door control system has a very broad market prospect due to its leading system design concept, advanced servo control technology, on-site intelligent control, and centralized management of distributed network structure. At present, on many subway lines in Europe, RINO's screen door control system is safely and effectively guaranteeing the safety of subway operation and passengers.