[雙語翻譯]vr外文翻譯--虛擬現(xiàn)實技術在過程仿真中的應用

1、1600 英文單詞， 英文單詞，8500 英文字符，中文 英文字符，中文 2640 字文獻出處： 文獻出處：T?ma Z, T?ma J, Knoflí?ek R, et al. The Process Simulation Using by Virtual Reality ☆[J]. Procedia Engineering, 2014, 69:1015-1020.The Process Simulation using b

2、y Virtual RealityZdenek T?ma, Jiri T?ma, Radek Knoflí?ek, Petr Blecha, Frantisek Bradá?AbstractNowadays companies can solve production systems problems by variety of software solutions, but in practice it is kn

3、own that it is often difficult to interpret these outputs, illustrate and to further integrate. One possibility is the use of augmented virtual reality for the planning of these systems. This article deals with the const

4、ruction of the experimental sorting workplace as a model case of the production system. Weak points of solution are solved using augmented virtual reality, which helps to simulate the process in real time, in this case t

5、he virtual displayed product moving on belt conveyor before testing the real piece.Keywords: Virtual reality; simulation; process; augmented reality1. IntroductionProduction is the process of transforming raw materials i

6、nto finished products with added value for the satisfaction of human needs. In nowadays highly competitive and dynamic business environment, industrial production is facing new challenges that require holistic view of th

7、e four main classes of manufacturing characteristics, e.g., cost, time, quality and flexibility. Manufacturing companies try to produce innovative products at low cost and at the same time shortening period-to-market. Th

8、e production process has become a complex task in order to address issues: increasing product diversity with reduced production volumes, customize according to customer requirements, increasing legislation, safety and en

9、vironmental requirements for the product. In addition to these issues due to the globalization of the market is constantly growing, need for the exchange of information in different stages of the life cycle of a product

10、(product design, planning, production, assembly, etc.). These aspects are put on production processes requirements to be increasingly flexible and systematic. These issues have already been solved and created numerous sy

11、stems and software to support and streamline the production process. However, to interpret the results of design activities (design) still seems problematic. Results of design, simulation and test results are presented e

12、ither in the form of sheets in two-dimensional form as illustrations of the production system, or using CAD, CAM systems [1], [2], [5]. This method is suitable for experts in field, but when address issues in multidiscip

13、linary teams, there are also people from other departments of the company. Therefore, it is necessary to deal with the way the results are presented, if they are sufficiently clear and whether working with data is user f

14、riendly. In this case it the directly offers the possibility to use virtual reality applications.1.1. Production system and safetyAccording to demands of companies and trade is necessary to take care about safety aspect

15、s of process directly in design phase. Today exists a lot of materials and methods how to inspect machine in whole process of production. From team which study risk analysis was found a possibility to use virtual reality

16、 for risk analysis [12], because it was found the biggest problem to simulate systems in retro-fitting. Theirs ideas was moved further with used augmented reality.1.2. Virtual realitythe belt in real time, as shown in Fi

17、g. 3. Whole system architecture is in Fig. 4.Fig.3. Sorting workplace with delta robot.Fig.4 System architecture.2.2. Setting the augmented reality simulationFor creation of augmented reality applications was used softwa

18、re interface [4]. Among the possible software which allows to display virtual objects on tracking marker with the camera via ARToolkit [7] library. With this open-source library is possible to use programming languages t

19、o apply this library.In the first phase was created 3D model, which represent possible new product. Object was used for a simulation at sorting process in inspection of collisions with platform on delta robot. The volume

20、 model was edited by Deep Exploration software environment that allows conversion to other formats. Then it was created polygonal model from a solid model and spatial scene (product model) described by VRML in Fig. 5. La

21、nguage VRML was selected because model could be edited by library ARToolkit.Fig.5. Polygonal model (7637 polygons).The next step was to connect the ARToolkit with our unique marker defined in Fig. 6. The marker has to be

22、 created with clearly defined orientation. Orientation of the feature on the marker was necessary from reasons of clarity location and rotation model at the marker. Size of the marker was chosen to be sufficiently distin