Coal is an important base of energy and raw materials, has an important strategic position in the national economy. In recent years, the domestic coal industry often have a major accident, the safety in production of coal industry has become a top priority.

 Coal mine safety is the lifeblood of business lines and well-being, is one of the strategic measures to modernize the mine. Without security there is no production, the purpose of the training is to improve safety through safety training technical quality of workers, master production safety policies, laws, procedures, enhance the independent security and mutual security awareness, so conscious compliance, reduce casualties occurred change coal mine production safety environment.

With the coal industry automation, information technology, increasing the technical level, to enhance safe production management efficiency, improve production scheduling command advanced and fast. It is necessary to set up an industrial-grade large-screen display screen video surveillance systems. Through the production of the main aspects of workplace surveillance, command and control can be directly observed in real-time production monitoring site, providing fast, dynamic, convenient and practical information to the dispatcher, and provide some decision support. It is an important measure to improve the level of mine production scheduling. It is the important guarantee for improving mine productivity.

 Mine Industrial large-screen display screen a video surveillance system by means of the existing mobile communication technology, large-screen mosaic screen-based monitoring system consists DMDTM (digital light processing systems) technology projection unit (including projection cubes, DLPTM projectors, rear projection professional display screen) multi-screen display control system (including multi-screen display controllers, video matrix switcher), splicing screen control system and associated peripheral equipment (cabinet, chassis, cables, etc.) and other equipment of a professional mine industry level splicing screen video surveillance systems. The system enables real-time monitoring on the one hand, the picture in the mine control room; on the other hand, received through the LAN Meeting video conference system share the screen of television conference call. While the large screen display system can also mine safety monitoring and control system to monitor real-time data and graphics files are displayed. Contribute to helping all levels of coal mine safety management personnel real-time control of coal mine production safety situation, very early detection of problems, it can exclude hidden and dangerous mines operation largely.

 With mobile communication technology to achieve remote monitoring of coal mine production safety, large-screen mosaic screen mining safety monitoring system using the mobile GPRS network and CMNET (main bearer of various fixed network data services) for networking, the Coal mine safety monitoring information collection terminal sent (network control center) GPRS core network, network management center in the GPRS core network identification number Proprietary Mine safety monitoring, hosted by CMNET connection with the server network to move. All levels of the monitoring center on access to the Internet by specifying the URL can be alerted each coal mine safety production information. On the communication module mine safety monitoring system configuration of a mobile SIM cards, using a dynamic IP address allocation, enabling the monitoring center data transmission, remote monitoring purposes. In addition, the use of coal mine after GPRS splicing screen monitoring system, mine safety is a better defense. When each of the miners in underground work with the GPRS positioning systems, large screen can not only help managers keep track of the extent of the progress of work in underground miners, but also can be carried out accurately after rescue miners danger, let the big screen splicing screen monitoring system is equal to the length of a pair of 'clairvoyance'.

 Safety Monitoring System mosaic screen large screen is updated in real time with each mine gas, carbon monoxide, wind speed, temperature, vacuum and other safety data to assist all levels of coal mine safety management personnel real-time control of coal mine production safety situation. Regardless of which alarm Mine, coal will be rapid feedback to the system back to the reason for excessive gas, the need to immediately stop production and how to eliminate the risk of other related information. While this information appears in the relevant governing bodies, it will also sent via text message to the responsible person of the phone until the danger has passed. "The safety monitoring center for regulatory authorities if it is a live coal industry oversight, largely excluded from the hidden dangers of coal mine operations."

 Big screen then fight in the coal industry to achieve full-screen display system, high-resolution applications, you can put the whole wall as a unified logical screen to display high-resolution image screen, full screen display and resolution of superposition, such as super show High-resolution system diagram, words of welcome and the like.

 Multi-channel video signal display, supports all standard video input signals, video surveillance information, video cameras, video recorders, DVD players size, color, and other physical projector video signal source can access general purpose multi-screen processors, signal processing by the general picture later, in the form of a window in the wall projection display anywhere zoom, multi-screen movement.

 Network signal display, connected via a network, so that the signal display more flexible, the computer image on the network can be anywhere, in any proportion quickly displayed on the screen splicing big screen; no limit to the number of all kinds of computer workstations, future expansion will be just computer display on the wall to join the network.

RGB, video signal through the display, through the enlarged display. This image processing card configuration display unit supports fully lossless display 1080p, high definition video signal 1080i, 720p, and other formats, you can directly enter playback HDTV, EVD, HD-DVD, HD DVR, and other high-definition the video signal. �2,2�N way (ie 2� by using a display unit and configured Visionlink super signal processing board can be multi-channel RGB, video signals within the range of full-screen display to single-screen mode or full screen.

 All kinds of mixed signal display, general multi-screen splicing processor having a processing ultra-high resolution computer graphics signals network, multi-screen display function video and RGB signals and different types of signals superimposed display window can be either one signal any reduction, enlargement, multi-screen or full-screen display

 Coal industry "big data security splicing screen" integrated information network system, but also can be applied to large-screen digital display wall system for all kinds of information (multimedia networks, computers, all kinds of surveillance video, etc.) to provide powerful processing and display functions, it production monitoring and control system within the jurisdiction of coal mines (geological Survey subsystems, production management subsystem, mining location tracking subsystem, ventilation subsystem, the power subsystem and enhance transport subsystem), database and information management systems to establish a direct high definition, engineering design of large-scale digital map on the large screen display wall, calculation, testing, production tracking, scheduling, management and information inquiries. Forming Mine Gas Control digitized graphics mine of mining, security, management, information technology, and the marshaling of scientific.

        Splicing screen monitor large-screen digital display wall system, utilization of coal mine monitoring system and advanced fiber contact, to achieve the city and county, three ore mining and network management control and management control center, enabling remote area of coal mine gas monitoring analysis, cross-border mining supervision, gas hazards queries, ventilation and security status query scheduling management; timely and very intuitive to get mine safety and production information to facilitate monitoring and management, implemented in the central control room, via a digital mosaic wall, high resolution, high contrast remote monitoring network show mine gas situation. Lock mining drawing state and provide security features, tune to see the adjacent coal mining drawing, viewing, and measuring the distance, tune to see historical figure in the comparative analysis, etc., in order to solve cross-border exploitation and provide an effective safety issues through technical means.

 Large-screen digital display wall system creates a data collection integration having management command operation mechanism, scheduling, feedback and other functions, to provide a reliable and stable, responsive integrated display platform. Combined with the existing equipment and the coal industry management system for analysis and decision command provides real-time and reliable means. Will greatly enhance the resilience of the local coal mine, so that before the accident prevention and monitoring after the accident and emergency command, reducing the loss of life and property of miners, coal industry so as to promote a fundamental change in the management of coal enterprises and technological progress ,has great significance.