High speed railway construction site audio and video command and dispatch system

High speed railway construction site audio and video command and dispatch system

1.                      Requirement analysis

In response to the demand for voice, video, and broadband access services along a high-speed railway construction site in a certain mountainous area, as well as the corresponding audio and video command and dispatch system, a complete audio and video command and dispatch system solution is implemented for the entire line access, transmission, exchange, and terminal. Multiple communication methods such as fiber optic transmission, wireless microwave, and 802.11n are integrated to establish an efficient and reliable audio and video command and dispatch system under the complex geographical conditions of the high-speed railway construction site.

2.                      Characteristics of Scheme

1) Supported by a high bandwidth dedicated communication network, the entire line achieves bidirectional audio and video command and scheduling;

2) Fingerprint/facial attendance system, real name management on construction sites, real-time inspection of employment situation in various positions;

3) Real time image storage and transmission on construction sites;

4) Comprehensive management of wireless cluster intercom system on construction sites;

5) Large fixed asset management, vehicle management system, GPS positioning and image detection;

6) Emergency command plan management;

7) Mobile dispatch center command vehicle;

8) Broadcasting amplification system;

9) Voice/video recording and playback system, fax transmission and reception system;

10) On site dispatch personnel information system, WIFI cluster intelligent terminal, information board and large screen display;

11) Construction progress management and query, monitoring system, GIS, 3D display, etc.

The construction of the communication private network adopts laying optical cables/renting optical cables and using wireless microwave methods to solve the problem of information transmission at high-speed railway construction sites. Due to the complex geographical location, the construction site conditions are not suitable for laying optical fibers throughout the entire process. Renting fiber optic cables throughout the entire process requires negotiating the price with the operator, and the rental cost is relatively high. Therefore, the key point of the best construction method is to rent the optical fiber from the operator, and lay the optical fiber in other places where conditions permit. At the same time, the transmission network construction of the entire link is achieved through line of sight wireless microwave relay transmission.

3.                       Solutions