Shanxi Datong Lijiayao Coal Industry Co., Ltd. is affiliated to Shanxi Coal Marketing Group Datong Co., Ltd., which is a modern large-scale state-owned enterprise with coal mining, washing and sales.

In order to build Lijiajiao coal as one high standard, high quality, high yield and high efficiency modern mine , combined with Shanxi coal sales group coal industry enterprise information development, Shanghai Viamax designed and implemented the coal safety production large screen monitoring system.

The system consists with Viamax 2 rows × 2 column,50VXL seamless splicing DLP projection display unit, and 12sets Mitsubishi LDT322V LCD monitor, which arranged on the two side of large screen. Real-time viewing the factory main production operation situation. The large screen can arbitrary switch any group of camera images, display data images, divided into four groups of screen display, or 4 screen combination display any group of pictures and other functions. 12 sets LCD monitor fixed display camera image, also can set any switch display according to the necessary. The whole system can 7 × 24 hours continuous real-time monitoring image transmission, and formed as a unified visual management, to achieve all aspects of production visualization, direct command, greatly improve the management level, and conducive to production work.

The large- screen display system of the Lijiayao mine reorganization project in accident prevention, monitoring, rescue and command  and have great significance in reducing the life and property damage of miners . For improve production, the use of modern information management model,  provided good technical support.

Figure 1:  2 * 2 DLP splicing large- screen display one RGB signal , both sides of the LCD monitor shows a video surveillance signal.

Figure 2: Each display unit shows one signal, video signal and RGB signal full screen, superimposed, cross-screen display.