Research on the architecture and key technologies of intelligent coal mining system

With the reformation of automation,digitalization and informatization in the coal industry,intelligent coal mining has become an important development direction. This paper analyzes the visual remote intervention intelligent mining mode which is widely used in China,introduces the technology development in three directions:the remote in- tervention intelligent mining based on video monitoring,the intelligent working face assisted by inspection robot,and the integrated mining intelligent navigation based on inertial navigation technology. Furthermore,the paper summarizes the four practical problems of " seeing,moving,thinking and stabilizing in the current stage based on the visual remote intervention mining method. Then,the paper analyzes two technical problems faced by intelligent coal mining under complex mining conditions,which are self-adaptive technology and fully mechanized mining robot technology. Three scientific problems that intelligent coal mining must be solved are summarized as the multi-information collection and cross fusion of mining space,intelligent coal mining decision-making basis theory,and the intelligent cooperation of comprehensive mining cluster. At the same time,according to the summarized technical and scientific problems,an ar- chitecture of intelligent coal mining system containing four dimensions of perception,decision-making,implementation, operation and maintenance is proposed,as well as the four basic elements is summarized,which are coal mining spatial perception ability,intelligent analysis and decision-making ability,automatic execution ability,reliable and stable oper- ation and maintenance ability. In addition,the breakthrough directions of key technologies are proposed,including min- ing geological environment enhancement sensing technology,intelligent mining technology analysis and decision-mak- ing technology,mining equipment intelligent technology,intelligent inspection robot technology,intelligent operation and maintenance technology of mining system,intelligent technology of auxiliary production links,and comprehensive mining intelligent service. Finally,a demonstration project in Yujialiang Coal Mine of CHN Energy Shendong Coal Group Limited is introduced. The application results show that the intelligent coal mining system based on ’transparent working face’ has initially achieved an intelligent coal mining.