Study On Development Of Ventilation Diagrams Of Mine Intelligent Drawing System

Ventilation mine map is the important basis of safety management, evaluation and decision-making in mine ventilation system.In recent years, with the further promotion of computer aided design software, ventilation mine also gradually get rid of the pure manual mapping.In order to reduce the cost of time in drawing, this paper designs and realizes ventilation mine intelligent mapping system.The article addresses the key technologies which system development needs and regards the specific development of software design as the mainline. Firstl y, it makes clear the main research object of the system and determines the sch eme of system development, designs the function module which the system com pleted. Then it adopts the theoretical research that is a narrative way that comb ines laboratory experiment and field application. The article focus on four functi on modules that includes ventilation system double-line graphics, two-dimensiona1ventilation stereogram, three-dimensional ventilation stereogram, mine ventilatio n network diagram.To ventilation system double-line graphics, this paper analyze on the basis of achievement that the predecessors’research summarized, design and implement an improved real double-line method from a automatic double-line graphics of ventilation system, put forward the fast way that speeds up drawing ventilation illustration-visual dynamic loading illustrations.To two-dimensional ventilation stereogram, it keeps a foothold on simplified2d model of roadway,provide the marking principle of expanding line, design and implement ventilation system double-line graphics that expand from the algorithm of two-dimensional ventilation stereogram-Colosed-polyline-hatch method.To three-dimensional ventilation stereogram, through interactive acquisition of roadway’s attribute data、simplified application of cross section of roadway and the design of quickly building algorithm model of3d roadway, complete a preliminary simulation of the mine ventilation network system.To mine ventilation network diagram, through the analysis of the general manual steps of drawing ventilation network, the article puts forward the principles that computer automatically draws ventilation network needs, discusses the method that is transforming the data of network structure into the physical graph data automatically--the longest path algorithm, determines the information that the components of ventilation network diagram contain. Focus on the situation of modifying mine ventilation network diagram, adopt several entities and real-time mapping method to realize visual editing function of the ventilation network diagram. According to the specific needs when the users analyze network diagram, it will realize the personal designed submodule.