scholarly journals Haptic Glove and Platform with Gestural Control For Neuromorphic Tactile Sensory Feedback In Medical Telepresence †

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 641 ◽  
Author(s):  
Jessica D’Abbraccio ◽  
Luca Massari ◽  
Sahana Prasanna ◽  
Laura Baldini ◽  
Francesca Sorgini ◽  
...  
Keyword(s):  
Ad Hoc ◽  
Tactile Feedback ◽  
Line Of Sight ◽  
Visible Range ◽  
Experimental Conditions ◽  
Medical Interventions ◽  
Gestural Control ◽  
Tactile Augmentation ◽  
Sense Of Touch ◽  
Human Sense

Advancements in the study of the human sense of touch are fueling the field of haptics. This is paving the way for augmenting sensory perception during object palpation in tele-surgery and reproducing the sensed information through tactile feedback. Here, we present a novel tele-palpation apparatus that enables the user to detect nodules with various distinct stiffness buried in an ad-hoc polymeric phantom. The contact force measured by the platform was encoded using a neuromorphic model and reproduced on the index fingertip of a remote user through a haptic glove embedding a piezoelectric disk. We assessed the effectiveness of this feedback in allowing nodule identification under two experimental conditions of real-time telepresence: In Line of Sight (ILS), where the platform was placed in the visible range of a user; and the more demanding Not In Line of Sight (NILS), with the platform and the user being 50 km apart. We found that the entailed percentage of identification was higher for stiffer inclusions with respect to the softer ones (average of 74% within the duration of the task), in both telepresence conditions evaluated. These promising results call for further exploration of tactile augmentation technology for telepresence in medical interventions.

scholarly journals Haptic Glove and Platform with Gestural Control for Neuromorphic Tactile Sensory Feedback in Medical Telepresence

2018 ◽  
Author(s):  
Jessica D'Abbraccio ◽  
Luca Massari ◽  
Sahana Prasanna ◽  
Laura Baldini ◽  
Francesca Sorgini ◽  
...  
Keyword(s):  
Ad Hoc ◽  
Tactile Feedback ◽  
Line Of Sight ◽  
Visible Range ◽  
Experimental Conditions ◽  
Medical Interventions ◽  
Gestural Control ◽  
Tactile Augmentation ◽  
Sense Of Touch ◽  
Human Sense

The advancements in the study of the human sense of touch are fueling the field of haptics. This is paving the way for augmenting the sensory perception during objects palpation in tele-surgery, and reproducing the information through tactile feedback. Here, we present a novel tele-palpation apparatus that enables the user to detect nodules with various distinct stiffness buried in an ad-hoc polymeric phantom. The contact force measured by the platform was encoded using a neuromorphic model and reproduced on the index fingertip of a remote user through a haptic glove embedding a piezoelectric disk. We assessed the effectiveness of this feedback in allowing nodule identification under two experimental conditions of real-time telepresence: In Line of Sight (ILS), where the platform was placed in the visible range of a user; and the more demanding Not In Line of Sight (NILS), with the platform being 50 km apart. We found that the entailed percentage of identification was higher for stiffer inclusions with respect to the softer ones (average of 74% within the duration of the task), in both telepresence conditions evaluated. These promising results call for further exploration of tactile augmentation technology for telepresence in medical interventions.

scholarly journals Design and Calibration of a Force/Tactile Sensor for Dexterous Manipulation

Sensors ◽  
2019 ◽  
Vol 19 (4) ◽  
pp. 966 ◽  
Author(s):  
Marco Costanzo ◽  
Giuseppe De Maria ◽  
Ciro Natale ◽  
Salvatore Pirozzi
Keyword(s):  
Experimental Validation ◽  
Sensory System ◽  
Tactile Sensor ◽  
Contact Forces ◽  
Dexterous Manipulation ◽  
Soft Contact ◽  
Grasping Force ◽  
Sense Of Touch ◽  
Human Sense ◽  
Robotic Applications

This paper presents the design and calibration of a new force/tactile sensor for robotic applications. The sensor is suitably designed to provide the robotic grasping device with a sensory system mimicking the human sense of touch, namely, a device sensitive to contact forces, object slip and object geometry. This type of perception information is of paramount importance not only in dexterous manipulation but even in simple grasping tasks, especially when objects are fragile, such that only a minimum amount of grasping force can be applied to hold the object without damaging it. Moreover, sensing only forces and not moments can be very limiting to securely grasp an object when it is grasped far from its center of gravity. Therefore, the perception of torsional moments is a key requirement of the designed sensor. Furthermore, the sensor is also the mechanical interface between the gripper and the manipulated object, therefore its design should consider also the requirements for a correct holding of the object. The most relevant of such requirements is the necessity to hold a torsional moment, therefore a soft distributed contact is necessary. The presence of a soft contact poses a number of challenges in the calibration of the sensor, and that is another contribution of this work. Experimental validation is provided in real grasping tasks with two sensors mounted on an industrial gripper.

scholarly journals Alat Pendeteksi Detak Jantung dan Kesehatan Berbasis Arduino

2020 ◽  
Vol 1 (2) ◽  
pp. 69-75
Author(s):  
Saiful Sufri ◽  
Aswardi Aswardi
Keyword(s):  
Heart Rate ◽  
Daily Activities ◽  
Human Organ ◽  
Final Project ◽  
Pulse Sensor ◽  
Contraction Cycle ◽  
Sense Of Touch ◽  
Human Sense

The heart is a human organ that pumps blood. The heart contracts, where one contraction cycle is usually called a heartbeat. Calculation of heart rate is often done manually by counting the pulse on the wrist for one minute. This method is considered inaccurate because it only relies on the human sense of touch. By making it easier to calculate the heart rate with the Electrocardiograph (ECG) device only but this tool is used in hospitals and cannot be moved. With a sensor that makes daily activities easier. For example, a pulse sensor that is easily available is a pulse sensor that can be used to detect the human heartbeat. With the heart rate device that can be moved using a pulse sensor. Where in the tool that in this final project detects the heart rate will be displayed on the Liquid Crisytal Display (LCD) where the detection results displayed are the results of the detection of human heartbeats accompanied by diseases that may be experienced from heart rate abnormalities.

scholarly journals Application of communication systems via the ultraviolet channel in FANET networks

2020 ◽  
Vol 309 ◽  
pp. 01013
Author(s):  
Gleb S. Vasilyev ◽  
Oleg R. Kuzichkin ◽  
Dmitriy I. Surzhik ◽  
vetlana M. Kharchuk
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
Network Performance ◽  
Ad Hoc ◽  
General Scheme ◽  
Line Of Sight ◽  
Practical Implementation ◽  
Optical Transmitter ◽  
Hoc Networks ◽  
Uv C

The possibility of providing communication in difficult conditions on the basis of Flying Ad Hoc Networks (FANET) requires the use of non-electronic means of communication. It is proposed to use optical communication in the UV-C range in the absence of line-of-sight between the nodes of the FANET network. The general scheme of the optical transmitter and receiver of UV-C range is considered and the review of the components required for its implementation, taking into account the application possibility in highly mobile small-sized UAVs, is carried out. As a result of the analysis of FANET networks with UV-C channel, physical and channel level parameters critical for network performance are revealed. Methods of adaptive change of these parameters in the practical implementation of the UV-C communication system in FANET networks are proposed.

Haptics: The Present and Future of Artificial Touch Sensation

2018 ◽  
Vol 1 (1) ◽  
pp. 385-409 ◽  
Author(s):  
Heather Culbertson ◽  
Samuel B. Schorr ◽  
Allison M. Okamura
Keyword(s):  
Haptic Feedback ◽  
Haptic Devices ◽  
Present Information ◽  
Touch Sensation ◽  
Haptic Technology ◽  
Feedback Modalities ◽  
Sense Of Touch ◽  
And Control ◽  
Virtual Interactions ◽  
Human Sense

This article reviews the technology behind creating artificial touch sensations and the relevant aspects of human touch. We focus on the design and control of haptic devices and discuss the best practices for generating distinct and effective touch sensations. Artificial haptic sensations can present information to users, help them complete a task, augment or replace the other senses, and add immersiveness and realism to virtual interactions. We examine these applications in the context of different haptic feedback modalities and the forms that haptic devices can take. We discuss the prior work, limitations, and design considerations of each feedback modality and individual haptic technology. We also address the need to consider the neuroscience and perception behind the human sense of touch in the design and control of haptic devices.

Steady State Eeg as a Measure of Peripheral Light Loss

1986 ◽  
Vol 30 (13) ◽  
pp. 1249-1253
Author(s):  
Richard T. Gill ◽  
Kevin M. Kenner ◽  
Andrew M. Junker
Keyword(s):  
Steady State ◽  
Stimulus Intensity ◽  
Line Of Sight ◽  
Strong Response ◽  
Experimental Conditions ◽  
Pilot Studies ◽  
Sensitive Measure ◽  
Stimulus Parameters ◽  
Light Loss ◽  
Made In

The objective of this research was to assess the feasability of using ElectroEncephaloGrams (EEG) to measure the extent of acceleration induced Peripheral Light Loss (PLL). Two pilot studies were conducted to determine if an EEG response to peripherally localized stimuli could be detected and to establish the stimulus parameters that would yield a strong response. Results revealed: (1) identifiable EEG responses to stimuli located as far as ± 60 degrees from the foveal line-of-sight; (2) higher stimulus intensity and, in particular, higher depth of modulation yielded stronger EEG responses; and (3) coherence was found to be a more sensitive measure than RMS Power or Gain. These findings were used to establish the experimental conditions that were used in a study whose objective was to estimate the minimum time necessary to detect the presence, or absence, of an EEG response to peripherally localized stimuli. Results revealed a reliabe determination for stimuli located at ± 45 degrees could be made in 20 seconds or less.

An Experiment on Weight Sensation in Real and Virtual Environments

2004 ◽  
Author(s):  
Adam S. Coutee ◽  
Bert Bras
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Three Dimensional ◽  
Tactile Feedback ◽  
Test Bed ◽  
Simulation Test ◽  
Time Simulation ◽  
Haptic Technology ◽  
Sense Of Touch ◽  
Disassembly Planning

Virtual reality allows users to visualize and interact with a three-dimensional world in a computer-generated environment. Haptic technology has allowed enhancement to these environments, adding the sense of touch through force and tactile feedback devices. In the engineering domain, these devices have been implemented in many areas including product design. We have developed a real-time simulation test bed to assess the usefulness of haptic technology for assembly and disassembly planning. In this paper, we present a study conducted to characterize the perception of weight in this virtual environment. Specifically, the experiments performed test the ability of a user to distinguish weight differences between two objects in real and virtual environments. This paper describes the experiments conducted and an analysis of the results.

scholarly journals Performance analysis of MIMO communication system with NLOS UV channel

2020 ◽  
Vol 12 (4) ◽  
pp. 91
Author(s):  
Gleb Sergeevich Vasilyev ◽  
Oleg R. Kuzichkin ◽  
Dmitry I. Surzhik
Keyword(s):  
Performance Analysis ◽  
Communication System ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Spatial Multiplexing ◽  
Line Of Sight ◽  
Solar Blind ◽  
Mobile Ad Hoc ◽  
Non Line Of Sight

Performance analysis is carried out, of a multiple input, multiple output (MIMO) ultraviolet (UV) communication system with a non-line-of-sight (NLOS) UV channel. The achievable bit error coefficient is calculated using three spatial multiplexing methods for different bitrate values, azimuthal deviation between the directional diagrams of an optical transmitter and an optical receiver, and different noise levels. Full Text: PDF ReferencesZ. Xu, B. Sadler, "Ultraviolet communications: potential and state-of-the-art", IEEE Commun. Mag. 4667-73 (2009). CrossRef D. Han, Y. Liu, K. Zhang et al., "Theoretical and experimental research on diversity reception technology in NLOS UV communication system", Opt. Expr. 20(14), 15833 (2012). CrossRef Q. Guo, N. He, Z. He, "Research on the channel performances and transmission in UV-LED scatter communications", Study Opt. Comm. 3, 64 (2013). DirectLink G. Chen, L. Liao, Z. Li et al., "Experimental and simulated evaluation of long distance NLOS UV communication", Communication Systems, Networks and Digital Signal Processing (CSND-SP), 9th Int. Symp. on IEEE, 904-909 (2014). CrossRef M.A. El-Shimy, S. Hranilovic, "Spatial-Diversity Imaging Receivers for Non-Line-of-Sight Solar-Blind UV Communications", J. Lightwave Techn. 33(11), 2246 (2015). CrossRef G. Shaw, M. Nischan, M. Iyengar, S. Kaushik, M. Griffin, NLOS UV communication for distributed sensor systems, Proc. SPIE 412683, 96 (2000). CrossRef I.S. Konstantinov, G.S. Vasyliev, O.R. Kuzichkin, D.I. Surzhik, I.A. Kurilov, S.A. Lazarev, "AUV Link Mobile Ad-Hoc Network Examination", J. Eng. Adv. Techn. 8(5S) July 2019 CrossRef I.S. Konstantinov, G.S. Vasilyev, O.R. Kuzichkin, I.A. Kurilov, S.A. Lazarev, "Modeling and Analysis of the Characteristics of Ultraviolet Channels under Different Conditions of Radiation Propagation for the Organization of Wireless AD-HOC Network", J. Adv. Res. Dynam. Contr. Syst. 07, 1853 (2018) DirectLink I.S. Konstantinov, G.S. Vasyliev, O.R. Kuzichkin, D.I. Surzhik, I.A. Kurilov, S.A. Lazarev, "Development Of Uv Communication Channels Characteristics Modeling Algorithm In A Mobile Ad-Hoc Network", J. Adv. Res. Dynam. Contr. Syst. 11(08), 1920 (2019). CrossRef G. Chen, F. Abou-Galala, Z. Xu, B.M. Sadler, "Experimental evaluation of LED-based solar blind NLOS communication links", Opt. Expr. 16(19), 15059 (2008). CrossRef

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