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.
This article starts from the current background of coal mine safety situation and combines with the status of coal mine safety research and computer network technology development, it gives the design of physical structure and logical structure of multimedia alarm system for coal mine safety and discusses and researches its implemental key technologies.
Researched and developed the software system of Information Management and Decision Support System of the hidden danger troubleshooting of Coal Mine. By using the technology of collaborative software to realize fast circulation of information, dynamic tracking, rapid feedback, and closed-loop management of transaction processing for the hidden danger, and by applying the technology of data mining,...
In order to analyze the water inrush data with a smaller number and a lower accuracy, a linear kernel H-SVMs model was presented. Firstly, a model was deduced to evaluate the generalization power of H-SVMs, then, a novel method to build H-SVMs was put forward. The separation distances of SVMs are regarded as the indices for classifying and clustering. Through the top-down and bottom-up routes, the...
Shaft diameter variation is the common procedure in construction of wellbore. Wall rock destruction will intensify with the change of shaft diameter. By modeling and simulation of the destruction in shaft diameter variation area which was changed quickly, it indicates that the mutation of surrounding rock mass and the stress concentration area is significantly larger than changed slowly, which was...
In allusion to the problem of the current mine microseism monitoring data three-dimensional effect, presents a method to use the OpenGL program language as the designing tool. Uses the tool establish the mine microseism monitoring three-dimensional model. Based on the model, dynamic displays monitoring points and the microseism centre which is got by the monitoring data computing in the three-dimensional...
In order to solve the problem of the current mine microseism monitoring, presents a method to use the OPENGL program language as the designing tool to establish the mine microseism monitoring 3D model. Based on the model, dynamic displays monitoring points and the microseism centre which is got by the monitoring data computing in the three-dimensional visualization system. It implements the purpose...
Combine the actual situation of stope collapse area 56-7# of Dongguashan Copper Mine in china, three-dimensional dynamic monitoring the collapse area twice using Cavity Monitoring System (CMS), taking collapse area measured data as foundation, collapse area three-dimensional model created using Surpac and gain three-dimensional configuration and the actual boundary of the collapse area accurately...
The paper analyzed the character, the origin and the danger of impulse interfere in the coal mine monitoring system. The impulse interfere in monitoring system has characters of sparse, shortness, and high amplitude. According to those characters, the adaptive denoising method based on FOCUSS was proposed to eliminate the impulse interfere. In the experiment, according to the procedures proposed by...
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.