A framework for managing multiprocess applications based on distributed finite-state machine approach
Dipt. di Meccanica, Politec. di Milano, Milan, ItalyDOI: 10.1109/ROMAN.2010.5598678 Conference: RO-MAN, 2010 IEEE
Source: IEEE Xplore
This paper describes a framework based on a publish/subscribe paradigm for interprocess communication based on XML messages sent over a TCP/IP connection. The framework manages the exchange of data within the clients of a system and permits the definition of a specific behavior for each client using a finite-state machine approach. Whilst the server-side of the framework is able to receive and dispatch events and data, the client-side of the framework is modeled as a finite-state machine able to perform state transitions after receiving the correct message. This architecture permits the loose-coupling between producers and consumers of data and the bidirectional mapping between the design of the behavior of a system and its implementation.
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- "The user can stand in front of the system, move his/her head, and see the shape from different points of view, while touching the surface along a selected curve, by using his/her hand. A software framework has been developed for managing the intercommunication of all hardware components and software modules . In particular, the geometric engine of thinkCore by think3 has been used to manage the 3D models of the shapes  , while a visualization system, Open5 (), has been developed and used to manage the visualization of a 3D model, its stereoscopic view, and the user interaction with the model. "
ABSTRACT: This paper describes the design and implementation of a system for rendering virtual shape through vision, haptic and sound. The system consists of a haptic strip that physically renders virtual curves. A flexible capacitive touch sensor (FCTS) is integrated with the haptic strip, and allows the system to track the position of the user's fingers on the strip. According to the position, the system renders curve properties such as curve shape, inflexion points and curvature through sound metaphors. The goal of this sonification approach is to strengthen the user's understanding of the shape of a virtual prototype, and to inform the user about geometrical attributes that could otherwise remain unseen. Such unseen attributes may either be a result of limitations in the visual and haptic display hardware or a result of limitations in human perception.Virtual and Physical Prototyping 07/2015; 10(2). DOI:10.1080/17452759.2015.1046036
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ABSTRACT: The paper describes a collaborative platform to support the development and the evaluation of cars interior by using a Mixed Prototyping (MP) approach. The platform consists of two different systems: the 3D Haptic Modeler (3DHM) and the Mixed Reality Seating Buck (MRSB). The 3DHM is a workbench that allows us to modify the D model of a car dashboard by using a haptic device, while the MRSB is a configurable structure that enables us to simulate different driving seats. The two systems allow the collaboration among designers, engineers and end users in order to get, as final result, a concept design of the product that satisfies both design constraints and final users’ preferences. The platform has been evaluated by means of several testing sessions, based on two different scenarios, so as to demonstrate the benefits and the potentials of our approach.Virtual and Mixed Reality - Systems and Applications - International Conference, Virtual and Mixed Reality 2011, Held as Part of HCI International 2011, Orlando, FL, USA, July 9-14, 2011, Proceedings, Part II; 01/2011
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ABSTRACT: The design of a new product requires a series of validations before its approval and manufacture. Virtual prototyping based on mixed reality technology seems a promising technique, especially when applied to the design review of products that are characterised by interaction with users. This paper presents a new methodology that allows the collaborative design review and modification of some components of automotive interiors. Professionals can work together through a mixed reality distributed design platform by interacting intuitively and naturally with the virtual prototype of the product. The methodology has been validated by means of tests with users, aiming at assessing the effectiveness of the approach, and at identifying potential usability issues.Virtual and Physical Prototyping 12/2012; 7(4):243-259. DOI:10.1080/17452759.2012.721605
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