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To address the problems of low accuracy, poor reliability and high maintenance costs in the internal attitude measurement of hydraulic supports, a study on the virtual-reality synchronous mapping method for digital twin monitoring of hydraulic support attitude was carried out. Firstly, by analyzing the support structure, a parametric expression model for the internal attitude of the hydraulic support was established, and the key technologies for sensor data processing were investigated. Then, a motion simulation model of the hydraulic support was established, and the parametric expression model of the hydraulic support was incorporated into the bottom layer of the simulation system for preliminary application. Finally, based on laboratory conditions, test verification was carried out on the proposed virtual-reality synchronous mapping method for support attitude. The test results show that the errors of the internal attitude angles of the support measured by this method are all controlled within 2°, which can meet the actual monitoring requirements. The research results provide new ideas for the virtual-reality synchronous mapping of hydraulic supports and have certain significance for the intelligent construction of mines.

, authors=Yong ZHANG, authorsList=Yong ZHANG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322559847200043026, articleId=1322559844717015056, tenantId=1146029695717560320, journalId=1225396423026438145, language=CN, title=液压支架姿态数字孪生监测虚实同步映射方法研究, columnId=1226462295946085268, journalTitle=矿业研究与开发, columnName=矿山机电与矿业智能化, runingTitle=null, highlight=null, articleAbstract=

针对液压支架内部姿态测量准确性低、可靠性差以及维护成本高的问题，开展了液压支架姿态数字孪生监测虚实同步映射方法研究。首先，通过对支架结构进行解析，构建了液压支架内部姿态参数化表达模型，并研究了传感器数据处理关键技术；然后，构建了液压支架运动仿真模型，并将液压支架的参数化表达模型编入仿真系统底层进行初步应用；最后，基于实验室条件对所提出的支架姿态虚实同步映射方法进行了试验验证。试验结果表明，该方法测量的支架内部姿态角误差均控制在2°以内，能够满足实际监测需求。研究成果为液压支架的虚实同步映射提供了新思路，对矿山智能化建设具有一定的意义。

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张勇（1987—），男，江西抚州人，硕士，助理研究员，从事智能开采数字孪生技术研究和产品开发。E-mail:zhangyong@tdmarco.com

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张勇（1987—），男，江西抚州人，硕士，助理研究员，从事智能开采数字孪生技术研究和产品开发。E-mail:zhangyong@tdmarco.com

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