Introduction to rail transit signaling system, which subsystems are composed of urban rail transit c

Including transmission system, official system, special system, wireless trunking communication system, closed-circuit television monitoring system, cable broadcasting system, clock system, passenger guide information system, power supply and grounding system, subway public coverage system.

The requirements of the system for communication are to be able to transmit and exchange various information quickly, accurately and reliably, so as to meet the requirements of two-way communication.

1. For the operation organization, it is necessary to ensure that the passenger flow, working conditions, and the operation status of each train on the line are accurately and quickly transmitted to the dispatching control center. At the same time, the dispatching command and control commands and signals issued by the dispatching control center are transmitted to each station and the running train in a timely and reliable manner.

2. Organize and manage the system.

It is necessary to ensure that smooth, effective, and reliable information exchange and contacts are maintained between various departments and between superiors and subordinates.

3. It is necessary to ensure that the connection between the system and the external system is convenient and smooth.

Hello, the urban rail Sunji traffic signal system has the following characteristics:

1. It has a perfect train speed monitoring function;

2. The interlocking relationship is simple;

3. Depot.

Independent use of interlocking equipment;

4. High level of automation;

5. System compatibility is not required.

Looking to pick silver Naina.

Transmission system, official system, dedicated system, wireless trunking communication system, closed-circuit television.

Monitoring system, cable broadcasting system, clock system, passenger guide information system, power supply and grounding system, base bend subway public coverage system and other systems.

1. The wireless trunking communication system refers to the automatic sharing of a small number of wireless channels by a large number of wireless users.

system. The frequency band used in China's wireless trunking communication system is the 800MHz frequency band.

2. CCTV (also known as CCTV) monitoring system is an important part of the security field, the system directly observes the situation of the monitored place through the camera and its auxiliary equipment (lens, PTZ, etc.), and can simultaneously record the situation of the monitored place. In addition, the TV monitoring system can also be linked with other security technology prevention systems such as anti-theft alarm systems, so that the user's security ability can be improved as a whole.

3. The clock system is mainly used in units that require a unified time for production and scheduling, such as: electric power, airports, light jujube rails, subways, stadiums, hotels, hospitals, troops, oil fields, water conservancy projects and other fields. The large-area clock system is mainly composed of a mother clock and multiple sub-clocks.