Abstract: With regards to the low degree of digitization,the long process planning period and the difficulty of monitoring the equipment operation status of the traditional virtualfully mechanized coal-mining face,a fully mechanized coal-mining face production system based on digital twins was designed.Based on the operation law and characteristics of fully mechanized coal-mining face,the physical fully mechanized coal-mining face,virtual fully mechanized coal-mining face,fully mechanized coal-mining virtual software service system and fully mechanized coal-mining twin data system were constructed,and the data interaction process and driving optimization method among the systems were studied.The systematic construction method of element model of virtual fully mechanized coal-mining face was put forward,and the model of various kinds of coal seams and fully mechanized coal-mining equipment were built.Based on the fully mechanized coal-mining virtual software service system,the production process of fully mechanized coal mining was simulated,and the cutting path planning of shearer and the preview evaluation of different fully mechanized coal-mining technologies were realized.The real-time mapping of operation attitude of fully mechanized coal-mining equipment in virtual environment was realized by using related sensors and software technology.On this basis,the distributed LAN collaborative model was established,and the dynamic optimal allocation of multiple equipment monitoring tasks were realized by using the consistency hash algorithm.Experimental tests showed that the fully mechanized coal-mining virtual software service systemcan could effectively provide services for the depth integration of digital twins and fully mechanized coal-mining faces,as well as the production,planning and monitoring of terminal equipment.

Key words: fully mechanized mining face, digital twin, virtual reality, fully mechanized mining process planning, distributed monitoring

摘要： 针对传统虚拟综采工作面数字化程度低、工艺规划周期长、装备运行状态监测困难等问题,设计了基于数字孪生的综采工作面生产系统。围绕综采工作面运行规律及特点,构建了物理综采工作面、虚拟综采工作面、综采虚拟软件服务系统和综采孪生数据系统,研究了系统间的数据交互流程和驱动优化方法。提出虚拟综采工作面元素模型的系统性构建方法,完成了多种类煤层及综采装备建模;基于综采虚拟软件服务系统对综采生产过程进行虚拟仿真,实现了采煤机截割路径规划和不同综采工艺的预演评价;利用相关传感器及软件技术实现了综采装备运行姿态在虚拟环境中的实时映射,在此基础上,建立了分布式局域网协同模型,借助一致性哈希算法实现了多装备监测任务的动态优化分配。经应用测试,该综采虚拟软件服务系统能有效为数字孪生和综采工作面的深度融合及终端装备的生产、规划、监测等问题提供服务。

关键词: 综采工作面, 数字孪生, 虚拟现实, 综采工艺规划, 分布式监测