基于Virtools的GC虚拟实验室的构建方法研究
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摘要
虚拟现实技术是当前计算机技术中的热点之一,它与多媒体技术、网络技术并称为三大前景最好的计算机技术。随着计算机技术的发展和对复杂的系统仿真的研究深入,单机虚拟实验室和二维虚拟实验室越来越满足不了人们的要求,从而三维网络虚拟实验室的研究应运而生。色谱仪器应用广泛且大多精密贵重,开发色谱虚拟实验室对于仪器培训以及实验教学有着重要的意义。但目前的虚拟色谱实验软件多停留在简单实验模拟的层面上,缺乏建立在数学模型基础之上的、利用真正的虚拟现实技术开发的、具有动态实时交互功能的模拟大型分析仪器仿真软件。这正是本课题的背景所在。
构建三维实时高交互的虚拟实验室是一个复杂的过程,需要解决三维场景中的高交互、数据传递和存储、化学工作站、信息反馈等问题。本文在分析比较各种主流的开发平台后,采用了以虚拟现实技术Virtools为核心的3ds Max+Virtools的虚拟实验室开发路线,并通过构建气相色谱三维网络虚拟实验室,重点解决了本文所面临的问题。
本文依据气相色谱基本理论,色谱保留值与载气流速及分离柱温度的关系,构建了不同色谱分离条件下保留参数的预测模型。在气相色谱三维网络虚拟实验室中,首先以3ds Max构建了虚拟仪器以及虚拟实验室的全三维场景;并利用BB模块和SDK相结合的编程方法,实现了动态实时交互改变分离条件参数,通过分离条件参数与虚拟气相色谱工作站的数据实时传递,在构建的虚拟工作站上动态绘制了不同分离条件下的色谱流出曲线,模拟了色谱实验的全过程。并且得到的各种模拟结果与真实实验结果十分相近。
本文所构建的气相色谱三维网络虚拟实验室采用全三维场景设计,场景逼真,完整的展现了实际实验室的面貌。实验者如同置身于实际实验室中,可按真实仪器的操作过程进行各种模拟操作。基本能够满足仪器培训和实验教学等方面的需要,且对色谱实验的教学和仪器操作培训具有较大的推广应用价值。同时为以后虚拟实验室的开发做出了理论与实践的有益探索。
Virtual reality is one of the hot points in current computer technology.Virtual reality; multi-media technology and network technology are called as the three best prospects technologys of computer technology. With the development of computer technology and research for system simulation, single machine virtual Labs and two-dimensional virtual Labs can not satisfy the requirement, so the research of the Interact-3D virtual lab has become a research hot spot. Chromatography Instruments are widely used and expensive, so it is very useful to develop virtual Chromatography lab for the training of instruments and experiment teaching.At present, the virtual Labs rest on the simple simulation. The outstanding works which are based on the mathematical model, and developed by true virtual reality, have the function of simulating analysis instruments with data could be transferred on dynamically,interactively and real time are not appear. This paper does the research under this background.
The building of the three-dimensional、real-time and high interaction VL is a complicated process, which needs to solve some crucial problems in three-dimensional scene such as real-time and high interaction, data transmission and storage, chemistry workstation, information feedback, appraisal system and so on. In this paper, a new technique (3ds Max+Virtools) whose core is Virtools technique is selected after analyzing and comparing the diversified development platforms of the mainstream virtual reality.Furthermore, the problems are solved through constructing the virtual chromatography lab.
Based on gas chromatographic theory, according to the relationship between the alcohol's retention parameters and the flow rate of carrier gas as well as column temperature, predicted models of alcohol's retention parameters in different experimental conditions are constructed. In the three-dimensional virtual lab for the gas chromatography, the three-dimensional virtul model and virtul lab are constructed by 3ds Max at first.The experimental conditions parameter could be changed dynamically, interactively and on real time and data could be transferred on real time by BB+SDK program, chromatographic curves in different experimental conditions could be drawn on the virtools workstation, and this paper has completed simulating the course of gas chromatography experiment.The results in the virtual experiment are close to those in the real experiment.
The three-dimensional virtual lab constructed by this paper has true scence, and complettly displayed the appearance of the true lab. In the VL, users likely stay in the true lab and can operate the Virtual Instrument like true Instrument. It has widely practical prospects in chromatography experiments and the training of chromatography instruments. At the same time, helpful experience is got for future VL's development.
构建三维实时高交互的虚拟实验室是一个复杂的过程,需要解决三维场景中的高交互、数据传递和存储、化学工作站、信息反馈等问题。本文在分析比较各种主流的开发平台后,采用了以虚拟现实技术Virtools为核心的3ds Max+Virtools的虚拟实验室开发路线,并通过构建气相色谱三维网络虚拟实验室,重点解决了本文所面临的问题。
本文依据气相色谱基本理论,色谱保留值与载气流速及分离柱温度的关系,构建了不同色谱分离条件下保留参数的预测模型。在气相色谱三维网络虚拟实验室中,首先以3ds Max构建了虚拟仪器以及虚拟实验室的全三维场景;并利用BB模块和SDK相结合的编程方法,实现了动态实时交互改变分离条件参数,通过分离条件参数与虚拟气相色谱工作站的数据实时传递,在构建的虚拟工作站上动态绘制了不同分离条件下的色谱流出曲线,模拟了色谱实验的全过程。并且得到的各种模拟结果与真实实验结果十分相近。
本文所构建的气相色谱三维网络虚拟实验室采用全三维场景设计,场景逼真,完整的展现了实际实验室的面貌。实验者如同置身于实际实验室中,可按真实仪器的操作过程进行各种模拟操作。基本能够满足仪器培训和实验教学等方面的需要,且对色谱实验的教学和仪器操作培训具有较大的推广应用价值。同时为以后虚拟实验室的开发做出了理论与实践的有益探索。
Virtual reality is one of the hot points in current computer technology.Virtual reality; multi-media technology and network technology are called as the three best prospects technologys of computer technology. With the development of computer technology and research for system simulation, single machine virtual Labs and two-dimensional virtual Labs can not satisfy the requirement, so the research of the Interact-3D virtual lab has become a research hot spot. Chromatography Instruments are widely used and expensive, so it is very useful to develop virtual Chromatography lab for the training of instruments and experiment teaching.At present, the virtual Labs rest on the simple simulation. The outstanding works which are based on the mathematical model, and developed by true virtual reality, have the function of simulating analysis instruments with data could be transferred on dynamically,interactively and real time are not appear. This paper does the research under this background.
The building of the three-dimensional、real-time and high interaction VL is a complicated process, which needs to solve some crucial problems in three-dimensional scene such as real-time and high interaction, data transmission and storage, chemistry workstation, information feedback, appraisal system and so on. In this paper, a new technique (3ds Max+Virtools) whose core is Virtools technique is selected after analyzing and comparing the diversified development platforms of the mainstream virtual reality.Furthermore, the problems are solved through constructing the virtual chromatography lab.
Based on gas chromatographic theory, according to the relationship between the alcohol's retention parameters and the flow rate of carrier gas as well as column temperature, predicted models of alcohol's retention parameters in different experimental conditions are constructed. In the three-dimensional virtual lab for the gas chromatography, the three-dimensional virtul model and virtul lab are constructed by 3ds Max at first.The experimental conditions parameter could be changed dynamically, interactively and on real time and data could be transferred on real time by BB+SDK program, chromatographic curves in different experimental conditions could be drawn on the virtools workstation, and this paper has completed simulating the course of gas chromatography experiment.The results in the virtual experiment are close to those in the real experiment.
The three-dimensional virtual lab constructed by this paper has true scence, and complettly displayed the appearance of the true lab. In the VL, users likely stay in the true lab and can operate the Virtual Instrument like true Instrument. It has widely practical prospects in chromatography experiments and the training of chromatography instruments. At the same time, helpful experience is got for future VL's development.
引文
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[3]http://www.images.com.cn/virtual_reality/vr_tutoriall/vr_dingyi01.htm.
[4]朱和平,王修信,李家春,梁冬冬等.基于虚拟现实的杨氏双缝干涉实验设计与实现.广西物理,2004,25(3):49-51.
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[6]汪祖媛,庄镇泉.虚拟现实技术的应用现状及发展.http://www.3s.org.cn/Chinese/xueshu/vrYYFZ.htm
[7]张茂军著.虚拟现实系统.北京:科学出版社.2001.
[8]范辉.基于虚拟现实技术的可控可视化矿井通风研究:(博士学位论文)太原:太原理工大学,2007.
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卷,第1-2期:91-93.
[10]王乐.基于VIRTOOLS的分布式VR的网络技术研究:(硕士学位论文).武汉,武汉理工大学,2006.
[11]孙立新等,分布式虚拟环境中碰撞检测研究,系统仿真学报,2002,6期.
[12]EON Studio Help.http://www.eonreality.com.
[13]王湛,张辉.Eon Studio在三维服装展示中的应用.北京服装学院学报,2006,26(6):40-45.
[14]http://www.vrplatform.com/
[15]http://www.vrchannel.com.cn/
[16]刘凤田,刘玉兰.虚拟现实技术及其在教育领域中的应用研究.河北农业大学学报(农林教育版),2005,(7):13-15.
[17]杜军.虚拟现实技术在教学中的应用.山东师范大学学报(自然科学版),2005,20(2):103-104.
[18]赵士滨,吴秋峰.虚拟现实技术进入高校实验教学的研究.教育发展研究,2000,(8):77-80.
[19]马新国,朱良龙,盛毅.虚拟仪器技术在植物生理仪器中的应用.计算机工程与设计,2007,26(7):1953.
[20]方棉佳,甄蜀春,张永顺.虚拟仪器技术的概念与实现.宇航计测技术,2003,23(1):58-61.
[21]刘素花.开放式色谱虚拟仪器及实验室的构建方法研究:(硕士学位论文).大连:大连理工大学,2007.
[22]应怀樵,虚拟仪器的过去、现在和将来.中国信息导报.2003(11):40
[23]王红茹.虚拟仪器-仪器发展的新时代.http://www.libnet.sh.sn/szzy/kjqb/1/1-12,html.
[24]Strassberg D.Virtual - instrument software goes 32 bits.EDN,1996,1:77-84.
[25]杨可曼.关于虚拟仪器及其应用前景.高等函授学报(自然科学版),2004,17(3):26-27.
[26]Salvatore Nuccio,Ciro Spataro.Assessment of virtual instruments measurement uncertainty.Computer Standards & Interfaces,2001,23:39-46.
[27]刘筱兰,张薇,程惠华,王本立.虚拟实验室的类型及发展趋势.计算机应用研究.2004,8
[28]宋象军.虚拟实验室在高校实验教学中的应用前景.实验技术与管理.2005,20(1):0035-03.
[29]http://web.mit.edu/.
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[31]http://www.chem.ox.ac.uk/vrchemistry/default.html.
[32]http://www.biointeractive.org/.
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[35]http://chemlab.byu.edu/home/index.htm.
[36]http://www.eonreality.com/products.html.
[37]http://www.axis3d.com.cn/example/esao.htm.
[38]http://www.modelscience.com/.
[39]http://www.laaphysics.org/.
[40]DAN CARNEVALE.A Virtual Laboratory Simulates Physics Experiments.http://chronicle.com/free/2002/12/2002121601t.htm.
[41]Harol Hoffman,Jerry Meisner.Leading the Way to Virtual Learning:The LAA Physics Laboratory.http://www.syllabus.com/article.asp?id=7765.
[42]http://ir.chem.cmu.edu/irproject/.
[43]http://yjfu.yculblog.com/post-169466.html.
[44]http://e_course.scau.edu.cn/tsinghua/08010070100001/08/01/007/01/00001/index.htm
[45]http://chem.xmu.edu.cn/teach/hgjc/index,html
[46]http://nanobio.hnu.cn/VirLab.htm.
[47]http://analab.dlut.edu.cn/.
[48]http://211.86.58.23/sy/wangshang/ewb.asp.
[49]http://www.blogcn.com/user17/histology/blog/27954104.html.
[50]http://course.szu.edu.cn/geneweb/manyou/lab4.html.
[51]http://jpk.dqpi.net/auto2004/virtualab/index.htm.
[52]http://www.hp.com/.
[53]http://www.chemsw.com/13025.htm.
[54]Jetse C.Reijenga,Training software for high-performance liquid chromatography.Journal of Chromatography A,903(2000)41-48.
[55]http://www.ntua.gr/virtlab/gcsim_im_eng.htm.
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