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    Item type:Publication, Access status: with files ,
    Transcoding texture information acquired contactless to tactile signals in the context of a remote touchless inspection system
    (2023-07-10)
    Youssef, Fady
    ;
    Khalil, Inderawes
    ;
    Kern, Thorsten Alexander
    This paper presents an algorithm to transcode surface texture information into tactile feedback signals in the context of a touchless remote inspection system. The texture information is obtained in the form of point cloud data produced from a structured light sensor. The algorithm is split into two stages: haptic data extraction, and mapping. The extraction is done by calculating the acceleration based on both the position and the velocity of the fingertip of the user relative to the texture. The acceleration data is then run in open-loop-control and mapped to an LRA actuator.
    Publicationtype: Conference Paper not in Proceedings
      75  54
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    Item type:Publication, Access status: without files ,
    Smart Blind Stick
    (2023-09-25)
    Abbasimoshaei, Alireza
    ;
    Elkholy, Marwan
    ;
    Kern, Thorsten Alexander
    Mobility is a major challenge for visually impaired people. They need a tool to help them find their way. Whereas for large-scale-movements contact based navigation is well established, navigation in a setting with many people or very crowded rooms or on public stairways poses still a challenge. The proposed project implements a stick with ultrasonic sensors and vibration motors that helps people with visual impairments navigate in these special surroundings. The device uses advanced ultrasound technology to detect obstacles and stairs nearby and reflect this through tactile signals.
    Publicationtype: Conference Presentation
      87
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    Universal haptic driving seat for retrofit applications
    (2023-09-25)
    Abbasimoshaei, Alireza
    ;
    Aboelela, Ahmed
    ;
    Kern, Thorsten Alexander
    Driving is an important aspect of daily life for many people, but for drivers who are deaf or hard of hearing, finding their way around without the aid of auditory cues can be a challenge. This project presents the development of a haptic driver seat extension that uses speech recognition technology to provide tactile feedback to the driver improving situational awareness and reducing distractions. It is universal in use for multiple sources of navigational hints, may it be from co-drivers or navigational systems.
    Publicationtype: Conference Presentation
      95
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    Multi-Layered control of a bilateral haptic telemanipulation setup using collaborative UR10e robots
    (2023-07-10)
    Elnwegy, Ali
    ;
    Youssef, Fady
    ;
    Kern, Thorsten Alexander
    This article discusses the design of a telemanipulation system providing haptic feedback for remote sensing of textured surfaces to improve and test vibrotactile actuator design. The system includes two UR10e Collaborative robots, each with a vibrotactile end-effectors for providing accurate texture-emulation. The system is designed with multilayered control, including local supervisors for managing operation modes and data transfer, and a system-wide supervisor that is responsible for managing the behavior of the local supervisor units and the data transfer between them.
    Publicationtype: Conference Paper not in Proceedings
      90  181