基于Web GIS的人员运动轨迹回放技术  

Personnel Motion Track Playback Technology Based on Web GIS

作　　者：李夏 LI Xia(China Coal Research Institute,Beijing 100013,China;Engineering Research Center for Technology Equipment of Emergency Refuge in Coal Mine,Beijing 100013,China;Beijing Mine Safety Engineering Technology Research Center,Beijing 100013,China)

机构地区：[1]煤炭科学技术研究院有限公司,北京100013 [2]煤矿应急避险技术装备工程研究中心,北京100013 [3]北京市煤矿安全工程技术研究中心,北京100013

出　　处：《煤矿安全》2020年第12期128-132,共5页Safety in Coal Mines

基　　金：煤炭科学技术研究院科技发展基金资助项目(2019CX-II-17,2019CX-I-09)。

摘　　要：为解决传统的图形展示系统需同时维护2个版本的图纸、使用第三方工具导致数据关联异常、三维系统建模和维护成本高等问题,基于开源的GIS服务器GeoServer、客户端OpenLayers等工具,设计了1套将CAD快速发布成Web GIS服务的自动化流程;以图论为基础,对运动轨迹进行数学抽象,根据在巷道图上布置的读卡器和绘制的辅助线,动态生成拓扑结构图;针对区域定位和精确定位2种定位方式,分别采用无启发函数和有启发函数的A*搜索算法,生成运动轨迹;使用在顶点之间按比例插入中间点的方法,实现可控的平滑回放动画效果。通过以上研究,形成了1套低成本、易维护、能同时支持区域定位和精确定位人员运动轨迹回放的展示系统。In order to solve the problems that traditional graphic display system needs to maintain two versions of drawings at the same time, the use of third-party tools leads to abnormal data association, 3 d system modeling and high maintenance costs, based on open source GIS server GeoServer, client OpenLayers and other tools, a set of automatic process to quickly publish CAD into Web GIS service is designed. On the basis of graph theory, the motion trajectory is abstracted mathematically, and the topological structure diagram is dynamically generated according to the card reader arranged on the roadway diagram and the auxiliary lines drawn. The A* search algorithms with no heuristic function and with heuristic function were used to generate the motion trajectory respectively for the two localization methods of region localization and precise localization. A controlled smooth playback animation is achieved by proportionally inserting intermediate points between vertices. Through the above research, a set of low-cost, easy to maintain, can support both regional positioning and accurate positioning of the human movement track playback system.

关 键 词：Web GIS GEOSERVER OPENLAYERS 运动轨迹回放 A*搜索算法 精确人员定位 

分 类 号：TD679[矿业工程—矿山机电]