a distance learning model for internet based teleoperation
A DISTANCE LEARNING MODEL FOR INTERNET BASED TELEOPERATION Ioana BARDA ∗ Lehel CSOKMAI ∗∗ Tiberiu VESSELNYI ∗∗∗ Radu Catalin TARCA ∗∗∗∗ Florin POPENTIU VLADICESCU ∗∗∗∗∗ Mihaela MIHAI ∗∗∗∗∗∗ Abstract: This paper proposes to present the reliability of WEB services applied on a mechatronic lab driven by a server connected to the internet offering virtual and remote interactivity for users running a client application. The interaction with robots in the same laboratory or with robots from different laboratories located in different geographical areas is quite difficult to achieve. A collaborative e- laboratories network architecture is used not only for cooperative research, but also for teaching mechatronics in a collaborative e-learning approach. This distributed multi-robot environment is composed mainly of the robots communication interfaces, data acquisition controllers, one server for every lab that communicate through an OCD camera with the physical system. The complex distributed application running on three servers offers access to everyone interested in robot manipulation for studying different methods of cooperation between robots or for learning mechatronic subjects. In this kind of protocols, one node (the receiver) exchanges data packets with another node (the sender) to let the receiver synchronize to the sender's clock. One of the classic protocols for this is the network time protocol (NTP). Keywords: e-learning, reliability, robots, internet, blended learning I. INTRODUCTION One of the most important intellectual functions of intelligent systems and the spring to the development of new capacities, skills, understanding etc., learning is based on the acquisition of different types of knowledge sustained by perceived information. Naturally suited to distance learning , but widely utilized in other types of learning too, E- learning , , , Computer-Based Training (CBT), Internet-Based Training (IBT) , Web- Based Training and a whole lot of other names are used to describe a new type of learning, where the medium of instruction is computer technology and people immerse themselves into a 3D environment or simply interact with characters or objects on screens . In higher education especially, as in the case of our mechatronic lab, the tendency is towards creating a Virtual Learning Environment (VLE) , in which all aspects of a course are handled through a consistent user interface standard throughout the institution. The virtual mechatronic lab discussed in this paper is targeted at those interested in robot manipulation or in mechatronics. For a safe communication we use web services based on the HTTP/HTML protocol. Our mechatronic virtual lab has definite benefits over traditional classroom training: the most obvious are the flexibility and the cost savings from not having to travel or spend lots of money on equipment; there are also others that might not be so obvious, such as the fact that it can work from (almost) any location and at any time and that it is self-paced, so that students can take their time and absorb all the necessary knowledge before moving on. Moreover, professors of the highest caliber can share information much more easily.