Introduction to Large-scale Display System Architecture for Rail Transit

The urban rail transit automation system usually consists of a large-screen splicing integrated display system. The system bears the centralized display of the main control system, computer, network, and video signals of the monitoring system. It is applied to railways, subways, light rails, electrified railways, and high-speed maglev railway systems. Control room. Rail transit involves railways, subways, light rail, electrified railways, high-speed magnetic levitation railways, etc. There is one thing in common in these areas: that is, it involves scheduling and information to display these requirements. The digital display large-screen splicing system is maturely applied to display the monitoring system signals of various main control systems or the operation status of the power monitoring system of the substation system. Usually the system has the following major components:

1) Display unit; MXN combination;

2) Large-screen splicing processors; In recent years, with the rapid development of power systems, perfect, advanced, and practical power grid dispatching automation systems are required to guarantee. To meet the increasingly highly intelligent needs of automated systems for real-time data acquisition, processing, monitoring and control. The power grid dispatching automation system usually includes a liquid crystal splicing large-screen integrated display system, which bears the centralized display of the main control system, the monitoring system of the computer, the network, and the video signal, and is applied to the control of power dispatch systems of different scales.

The red line represents the RGB signal. The green line represents the RS-232 cable, that is, the control line yellow represents the RJ45 network cable and is connected to the system network.

Equipment List:

1. Large screen display equipment: large-screen video wall, industrial projector, signal processing equipment: image controller, frequency conversion equipment, signal converter 3, signal transmission equipment: video matrix, computer matrix, optical transceiver, codec 4 the system control device: the system control software, matrix, <br> <br> in the control system features:

1. The system control software is powerful and the operation interface is simple and practical.

2. The entire projection system has high resolution, high brightness, high contrast, true color reproduction, small image distortion, uniform brightness, clear display, and good uniformity of the entire screen image.

3, a variety of signals (computer signals, surveillance video signals, network signals) at the same time.

4, can open multiple windows (computer signal window and video signal window).

5. The system backup capability on the signal processing equipment achieves system-level backup through the projection unit's unique through-display function and matrix switching equipment. In the event of a failure of the multi-screen splicing controller, the signal can still be displayed on the large screen.

6, the user can flexibly open the window, define the size, the screen can be free to zoom, move, roam, not limited by the physical patchwork, the use of software to control the parameters of the window, the patchwork between the screen and the screen does not affect the Chinese characters and images Displayed correctly.

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