Development of Haptic Device for Advanced Technical Skills in the Immersive Virtual Environment

由于经济全球化，日本工业所处的环境正在发生巨大变化，亚洲国家正在经历经济和技术发展，并从信息技术的进步中受益。例如，在定制铸造产品的设计中，缺乏铸造知识的设计师可能无法制作出好的设计。为了获得良好的设计和制造效果，有必要为设计者和制造商配备一个与铸造设计相关的支持系统，即所谓的知识转移和创造系统。本文提出了一种新的基于虚拟现实的铸造设计知识获取与岗位培训系统，该系统由采用同步多媒体的显性和隐性知识传递系统和采用便携式虚拟环境的知识内化系统组成。在我们提出的系统中，教育内容显示在沉浸式的虚拟环境中，学员可以在虚拟的现场体验自己的操作。在学员通过基于多媒体的知识转移系统获得铸造显性和隐性知识的情况下，沉浸式虚拟环境催化了知识的内化，也使学员在实际操作现场进行在职培训前获得了隐性知识。我们系统的优势在于，它为用户提供了一个以虚拟真实的方式在视觉上和触觉上体验铸造工作流程的机会。通过将本系统与OJT的应用相结合，培训计划有望成为一种高效、有效的工程师和技术人员人力资源开发的未来手段。当使用“便携式沉浸式虚拟环境系统”时，用户进入一个“3D可视化系统”。用户通过佩戴3D立体眼镜（眼镜），可以看到工作流程的立体3D图像，其中甚至可以通过使用触觉系统体验和“感受”产品的形状和形式，如图10所示。简单地说，这个机器人可以作为一个系统来支持学习的内化过程，这是SECI模型定义的知识转换过程的第四阶段。使用该系统进行内部教育和培训有许多优点。值得注意的优点是：(1)工人在铸造工厂的工作现场实际执行工作之前，可以虚拟地体验铸造工作流程。(2)事先了解工作流程。(3)充分了解整个工作过程中的风险和危险。(4)对尚未达到老将水平的初级/中级工人进行培训，使其能够顺利地在现场执行任务。少

The environment in which Japanese industry has achieved great respect is changing tremendously due to the globalization of economics, where Asian countries are undergoing economic and technical development as well as benefiting from the advances in information technology. For example, in the design of custom-made casting product, a designer whom lacking of casting knowledge may not be able to produce a good design. In order to obtain a good design and manufacturing result, it is necessary to equip the designer and manufacturer with a support system related to casting design or so called, knowledge transfer and creation system. This paper proposes a new virtual reality based knowledge acquisition and job training system for casting design, which is composed of the explicit and tacit knowledge transfer system using synchronized multimedia and the knowledge internalization system using portable virtual environment. In our proposed system, the education content is displayed in the immersiv … More e virtual environment, where by a trainee may experience himself in the virtual site operations. Provided that the trainee has gained explicit and tacit knowledge of casting through the multimedia-based knowledge transfer system, the immersive virtual environment catalyzes the internalization of knowledge and also enable the trainee to gain tacit knowledge before undergoing on the job training at real operation site. The advantage of our system is that it provides the user an opportunity to visually and haptically experience the foundry workflow in a virtually-real manner. By combining the usages of our system and OJT, training program is expected to become a highly efficient and effective futuristic means of human resources development of engineers and technicians. When using the "Portable immersive Virtual Environment System", the user enters a "3D Visualized System". By wearing 3D stereoscopic glasses (eye-gear) the user can see a stereoscopic 3D image of the workflow, in which even the shape and form of a product can be experienced and "felt" by using the haptic system as shown in Fig.10. Simply put, this robot can be used as a system to support the internalization process of learning which is the Phase 4 of the knowledge conversion process defined by the SECI Model. There are many advantages in using this system for in-house education and training purpose. Notable advantages are : (1)The worker can virtually experience the foundry workflow prior to actually performing the works at the worksite in the foundry factory. (2)Learn about the work procedures beforehand. (3)Fully learn about the risks and danger throughout the work process. (4)Train beginner/intermediate level workers that haven't reached veteran level yet, so they can smoothly perform their tasks at the worksite. Less