Design of three-dimensional scene monitoring system for filling hydraulic support
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摘要: 目前充填工作面设备监测系统采用以二维监测为主的传统监测方式,随着充填液压支架在井下的应用逐渐增多,充填液压支架的各部件运动和群支架协同运动的准确性对井下充填采煤效率影响很大,而二维平面运动已无法描述充填液压支架的复杂动作,需要将监测界面上升到三维空间,从不同位置、不同角度监测充填液压支架的工作状况,提高矿井安全系数。针对上述问题,采用三维引擎技术,设计了一种充填液压支架三维场景监测系统,该系统主要由三维虚拟仿真软件、数据采集模块及数据通信模块组成。三维虚拟仿真软件基于Unity3d,用于建立系统监测界面,通过计算机显示充填液压支架的顶板压力值、各销轴之间的角度偏移量及液压缸的位移量等监测数据的动态变化,实现对充填液压支架的三维实时监测。系统监测界面可分为实体场景监测界面和数据监测界面2个部分:实体场景监测界面采用3ds Max建模软件建立充填工作面设备三维实体模型及三维场景模型,并对三维模型进行优化和渲染处理,实现与实际充填工作面空间动作完全一致的场景驱动;数据监测界面通过数据采集模块采集、分析与处理充填工作面的工作状态信息,通过数据通信模块将信息传输到三维虚拟仿真软件,实现监测数据与软件相匹配。实际应用效果验证了该系统的有效性。Abstract: At present, the equipment monitoring system of filling working face mainly adopts traditional monitoring method based on two-dimensional monitoring, with underground application of filling hydraulic support increases gradually, the accuracy of movement of the parts of filling hydraulic support and group support cooperative movement has a great influence on underground filling mining efficiency. However, the two-dimensional planar motion is unable to describe complexity of the filling hydraulic support action, and needs to upgrade monitor interface to three-dimensional space, and monitor working condition of filling hydraulic support from the perspective of different locations and different angles, so as to improve mine safety coefficient. For the above problems, a three-dimensional scene monitoring system for filling hydraulic support was designed by using three-dimensional engine technology. The system is mainly composed of three-dimensional virtual simulation software, data acquisition module and data communication module. Based on Unity3d, the three-dimensional virtual simulation software is used to establish the system monitoring interface. The computer displays the dynamic changes of monitoring data such as roof pressure values of the filling hydraulic support, the angle offset between each pin shaft and the displacement of the hydraulic cylinder, so as to realize the three-dimensional real-time monitoring of the filling hydraulic support. System monitoring interface can be divided into two parts of entity scene monitoring interface and data monitoring interface:entity scene monitoring interface uses 3ds Max modeling software to establish three-dimensional entity model and three-dimensional scene model of filling mining equipment, and to optimize processing and rendering of the three-dimensional model, so as to achieve scene-driven consistent with the actual working space on filling working face; the data monitoring interface collects, analyzes and processes the working state information of the filling working face through the data acquisition module, and transmits the information to the three-dimensional virtual simulation software through the data communication module to realize the matching between the monitoring data and the software. The effectiveness of the system is verified by practical application.
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