Communication

PASSENGER INFORMATION SYSTEM (PIS)

The PIS is a multimedia integrated information system which relies on multimedia network technology. It has display terminals at station halls, platforms, entrances and exits and trains, allowing passengers to be informed of communication train operation information and public media information in a timely and accurate manner.

PUBLIC ADDRESS SYSTEM (PA)

As a dedicated subsystem of the metro communication system, the PA system provides fully functional and advanced operational tools for the metro passenger transport, train integration, disaster prevention and equipment maintenance departments, improving the quality of metro passenger transport and its capability to handle emergency events.

VIDEO SURVEILLANCE SYSTEM

Oriented to metro operation and public security, the system provides basic support for visual management and control of metro scenarios, and can open interfaces to provide video calling capability for other integrated businesses. It adopts distributed architecture and service-oriented architecture (SOA) and supports All-In-One deployment of all services. With flexible capacity expansion realized through server cluster, the system has the functions of fault detection, load balancing control and dual hot standby, providing high-reliability and high-security system services. Based on SOA, the function of service modules is clearly specified, the services are loosely coupled, and the modules can be reused, which is convenient for flexible expansion. The platform supports multi-level cascade and cascade standard protocol, to meet the requirements of large-scale monitoring projects in security cities.