The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
As a modern security design, Inherent Safety means that equipment and facilities is able to contain the inherent fundamental features to prevent accidents. Mine hoist is the most important equipment in the coal production. How to achieve safe, reliable, efficient production, has been the focus study at home and abroad. Inherent safety is reflected in hoist design, primarily through the design measures...
This article describes the design of a wireless sensor network based on ZigBee technology. It is mainly used for collecting and transferring the various monitoring information about the coal mine underground. Then the data will be analysed and processed in the monitoring system outside, so that we can ensure the safety of the coal production and effectiveness better.
In this paper, theoretical analysis and practical of coal production were combined to study the mechanism of large gas explosion accident at coal face. The author uses coal spontaneous combustion theory, as well as rock pressure, gas flow field and gas explosion theory to study the cause of the large gas explosion with high incidence at coal face. Consequently, the cause of the accident is: when the...
The core of fuzzy evaluation on the safety of belt conveying system is membership degree transformation. But the existing transformation methods should be questioned, because redundant data in index membership degree is also used to compute object membership degree, which is not useful for object classification. The new algorithm is: using data mining technology based on entropy to mine knowledge...
Based on the theory of system engineering, coal mine production safety has been analyzed. From workers, production process, coal production and economy, coal mine production safety evaluation indexes have been confirmed, and then the BP neural network model of coal mine production safety evaluation has been built. After training and testing the model, the model can accurately evaluate the coal mine...
China is a country with high coal production and consumption. Being the main energy resource of China, coal has provided a reliable energy supply for the sustainable development of the countries national economy. Coal in China has made a great contribution for the national economic development, but it has also caused a negative influence on the ecological environment in China. This paper introduces...
Reinforcement learning is an algorithm without model which is learning what to do--how to map situations to actions-so as to maximize a numerical reward signal. Reinforcement learning provides an available method to the systems, which are very difficult to build up accurate models around complex environment. But now many practical problems demand a maximum reward with not much cost (expense). For...
A cost effective ZigBee-based wireless mine supervising system is presented in this article. This scheme used intelligent helmets as voice terminal and ultra-low-power nodes of wireless sensor network.The programme adopted ZigBee wireless technology to build wireless sensor networks, realized real-time surveillance with early-warning intelligence on methane, temperature, humidity in mining area, and...
At the present stage of development of Kuzbass coal-mining industry the tasks of coal production increase and coal-mining safety increase are of top priority. Use of polymer materials is one of the directions of efficiency and safety increase of coal-mining works. The positive experience of polymer materials use at the coal-mines of Kuzbass proved the importance of polymer technologies in solution...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.