chrispeng [ad_1]
1 Introduction
Coal mine safety production is related to the people’s lives and property safety. Governments at all levels have always attached importance to coal mine safety production issues and adopted a series of measures to continuously strengthen safety production work. Due to the complex coal production system, the dark and narrow workplaces, the concentration of people, and the movement of the mining face at any time, changes in geological conditions will cause new situations and new problems on the moving mining face. If corresponding effective measures are not taken in time, it may cause problems. Leading to major disasters and accidents, which brings difficulties to safety work. How to strengthen the management mode of coal mine safety production and realize the modernization and informatization of management has become a concern of coal mine enterprises. The “perceived mine” based on the informatization and intelligence of the mining area is a good example of the successful application of the Internet of Things technology in the coal industry.
“Perceived mine” through comprehensive perception, comprehensive perception of people (personnel positioning, wireless communication), equipment (comprehensive automation), environment (safety monitoring, mine pressure monitoring, etc.) in the mining area, and achieve full coverage through high-speed networks, and also The intuitive image application, through the 3DGIS holographic display of the mining area, to fully perceive the mine.
“Perceived mines” can be used for coal mine (surface, underground) safety production, comprehensive informatization of the coal industry, taxation bureaus, coal bureaus, county coal production monitoring, and forestry system monitoring, power system high-voltage switch monitoring and control, etc. Scenarios, there are currently many successful cases across the country. The key point of the implementation of “perceived mine” is the access to all perceptual layer networks related to safety and production in the mining area. Because in the mining area construction process, the manufacturers of different sensors are different, and the protocol interfaces are not unified. Some are early construction projects without smart interfaces. Full access to the sensor network is the basis for a comprehensive “perception” of the mine.
“Perceived mines” not only improve the safety management level of mines, but also involve production, such as the use of information technology, network technology, and sensor networks to carry out coal transportation belts, coal silos, coal washing plants, water silos, and substations in mining areas. The perception and control of related equipment systems have greatly improved the automated production capacity of the mining area and is a model of the integration of “informatization and industrialization”.
2 “Perception Mine” System Structure
The integrated information system of coal mines combines advanced automatic control, communication, computer, information and modern management technologies, and integrates the control, operation and management of the production process of the enterprise as a whole, and provides overall solutions to realize the optimization of the enterprise Operation, control and management to improve the core competitiveness of the enterprise. Comprehensive automation is an effective means for coal mines to achieve high production and high efficiency, and plays an important role in improving coal mine production and operation conditions, safety levels, accident disaster prediction and forecasting, and production business management.
This plan is to launch an efficient, reliable and safe automated network system in response to the actual needs of the current coal mine. This system takes the mine comprehensive automation information platform as the main body, and adopts mining optical fiber industrial Ethernet ring network and industrial fieldbus technologies to jointly construct a comprehensive digital information transmission platform.
The sensing layer equipment is composed of a large number of sensors that sense the environment, electromechanics, and personnel, such as wind speed, air volume, temperature, rotation speed, vibration, voltage, current, power and other sensors, methane, CO, CO2, O2, bolt pressure, drilling Sensors such as stress and roof separation environment, sensors such as deviation, coal stacking, smoke, belt slipping, coal bunker level gauges, water level gauges and other sensors, cameras, RFID personnel positioning, etc. These sensors build a huge sensor network layer on the ground and underground in the mining area.
The network layer equipment mainly includes the gigabit optical ring network and network switch equipment, photoelectric conversion equipment, routers, firewalls, servers, etc., which are laid on the ground and underground, and the PHS network or Wi-Fi network used to achieve wireless coverage. The data network of the entire mining area.
The application layer is the comprehensive information system of the mining area, including the mining area 3DGIS system, integrated automation system, personnel management system, video monitoring system, short message management platform, mining area emergency command system, dispatching system, etc. The application layer software provides a variety of general data interfaces. On top of this, you can easily integrate the hoist monitoring system, safety monitoring system, mine communication system, emergency rescue communication system, video monitoring system, underground dispatching wireless communication system, and roadway The transportation system, the computer control system of the coal preparation plant, the main ventilator monitoring system, the pressure fan monitoring system, the central pump room monitoring system, the industrial TV system, etc. are seamlessly linked, and finally transmitted to the application layer through the industrial Ethernet platform for uniformity Management, as shown in Figure 1. Realize the informatization and automation of production links such as mining, excavation, transportation, wind, water, electricity, and safety in the mine, thereby optimizing production and management.
Figure 1 Perceived mine system structure
[ad_2]
