海得智能制造英文版
Industry

Industry

We are driven by customer demands, and provide products for "intelligent connection, intelligent acquisition, intelligent storage, intelligent calculation, intelligent control and intelligent display” and comprehensive solutions focusing on “automation” and “informatization” in the industry.

Industry

Infrastructure

Industrial Manufacturing

Home  >  Industry  >  Infrastructure

Integrated Supervisory Control System of Rail Transit

Publish Date：2021-04-21

Scheme Background

ISCS (Integrated Supervisory Control System)

     The Integrated Supervisory Control System (ISCS) integrates the monitoring layers of several similar automation systems into a unified monitoring system platform, which realizes the information integration and sharing, integrated monitoring and operation of all integrated and interconnected systems, and provides a platform for users to realize information exchange and resource sharing.

     Rail Transit ISCS generally consists of the following sub-systems:

     ►   Building Automation System (BAS) ►   Fire Alarm System (FAS)►   Power Supervisory Control And Data Acquisition (PSCADA) ►   Access Control System (ACS)►  Platform Screen Door (PSD)

ISCS Network Requirements

      ●  ISCS network has two different networking methods: if optical transmission equipment is used as backbone network or Ethernet switch is used for standalone networking, ISCS is usually interconnected with other systems.

      ●  ISCS usually requires ring network with good reliability, real-time capability and convergence.

      ●Considering the broadcast domain control and security, it is recommended to use 3-layer networking mode for ISCS network.

Scheme Topology   ISCS 1


ISCS of Beijing Subway Fangshan Line. Integrator: NARI.

OTN transmission backbone network and 2-layer network are used, and all ISCS terminals are located in the same network segment.

Selected devices: MACH4002, MS4128.

Scheme Topology  ISCS 2


Bearing system: ISCS, BAS, PSCADA (Beijing Subway Fangshan Line)

System integrator: NARI

Software provider: NARI (domestic software)

Data transmission mode: ISCS&BAS (Dual NIC + Single IP, Layer 2); double networks must be interconnected; multicast application mode

Transmission system: OTN

Description of Scheme Value Points

 

Redundancy: Double-ring network structure with a convergence time of less than 50ms
Fault tolerance: Single-point or conditional multi-point faults will not affect the transmission of network data
Reliability: MTBF of backbone network equipment is more than 20 years, which can meet the needs of long-term stable operation
Security: The network system is protected through ACL, AGL, DoS protection, dynamic ARP spoofing attack protection and other security policies
Compatibility: IEC-62439 standardized ring network protocol and management interface are adopted to be compatible with equipment of different suppliers for joint networking
Scalability: The network is accessed in batches and by lines, and the expansion of the network system does not affect the normal communication of existing equipment
Manageability: The working status of field equipment can be displayed intuitively through graphical network management, so as to lower the difficulty of O&M management, thus realizing intelligent O&M in combination with HITE’s NMS platform.

 

 

(C)2002-2019 Shanghai Hi-Tech Control System CO., LTD. hite@hite.com.cn TEL:(8621)60572333 沪ICP备05050530号