Touch-sensing fabric encapsulated with hydrogel for human-computer interaction

Soft Matter ◽  
2021 ◽  
Author(s):  
ruidong xu ◽  
Lijun Qu ◽  
Mingwei Tian

Flexible touch-sensing devices have raised extensive attention to wearable electronics and human-machine interaction. The ionic touch-sensing hydrogels are ideal candidates for these scenarios, but the absorbed water evaporates easily from...

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Hang Guo ◽  
Ji Wan ◽  
Haobin Wang ◽  
Hanxiang Wu ◽  
Chen Xu ◽  
...  

Handwritten signatures widely exist in our daily lives. The main challenge of signal recognition on handwriting is in the development of approaches to obtain information effectively. External mechanical signals can be easily detected by triboelectric nanogenerators which can provide immediate opportunities for building new types of active sensors capable of recording handwritten signals. In this work, we report an intelligent human-machine interaction interface based on a triboelectric nanogenerator. Using the horizontal-vertical symmetrical electrode array, the handwritten triboelectric signal can be recorded without external energy supply. Combined with supervised machine learning methods, it can successfully recognize handwritten English letters, Chinese characters, and Arabic numerals. The principal component analysis algorithm preprocesses the triboelectric signal data to reduce the complexity of the neural network in the machine learning process. Further, it can realize the anticounterfeiting recognition of writing habits by controlling the samples input to the neural network. The results show that the intelligent human-computer interaction interface has broad application prospects in signature security and human-computer interaction.


2020 ◽  
Author(s):  
Francielli Freitas Moro ◽  
Luciana Bolan Frigo

Computer systems are increasingly adapting to user needs. Human-machine interaction or human-computer interaction (HCI), as it is known, has discussed sociological approaches in order to design interfaces taking into account user's differences. This article presents an analysis of the Facebook social network based on the evolution of traditional HCI and some of its concepts for feminist HCI, thus exploring its functionality and evaluating it in this context. Surveys based on the concepts of feminist HCI were applied to evaluate this methodology and the impacts on gender diversity in these systems. The results indicate that most users seek more freedom to express themselves at the system and its content.


2001 ◽  
Vol 30 (555) ◽  
Author(s):  
Olav Bertelsen

"The First Danish Human-Computer Interaction Research Symposium has been realised as a joint effort between sigchi.dk and Centre for Human-Machine Interaction. The primary motivation for this effort has been to stimulate networking and to create an overview of recent Danish HCI research. The present proceedings consist of the 25 extended abstracts accepted for the symposium, presenting a very broad range of work, characteristic for Danish HCI research. In addition, 3 thesis (in progress) summaries from the doctoral colloquium are included."


2021 ◽  
Vol 1 ◽  
pp. 1471-1480
Author(s):  
Lou Grimal ◽  
Inès di Loreto ◽  
Nadège Troussier

AbstractThe digital transition refers to the fact that information technology (IT) tools are used in all our activities on a daily basis. In this article, we will study the use of IT tools in engineering activities. It is possible to say that today IT tools accompany engineers in their professional practices. This presence of computing has also enabled the development and considerable changes in human-technologies interactions. Moreover, the socio-economic context has evolved considerably, and environmental issues have taken on an important role in engineering. We ask whether and to what extent these two contexts (digital and ecological) have changed the expectations of design professionals with regard to IT tools. Should the way of addressing the type of human-machine interaction in engineering tools be modified in depth? The objective of this paper is to understand what types of human-computer interaction would allow a more satisfying user experience for those future engineers who are using new technologies and marked by the ecological urgency. To do so, we will focus on a particular engineering context (design for sustainability) and a particular engineering practice (LCA practice).


Materials ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6366
Author(s):  
Zhiyuan Hu ◽  
Junpeng Wang ◽  
Yan Wang ◽  
Chuan Wang ◽  
Yawei Wang ◽  
...  

The human–machine interface plays an important role in the diversified interactions between humans and machines, especially by swaping information exchange between human and machine operations. Considering the high wearable compatibility and self-powered capability, triboelectric-based interfaces have attracted increasing attention. Herein, this work developed a minimalist and stable interacting patch with the function of sensing and robot controlling based on triboelectric nanogenerator. This robust and wearable patch is composed of several flexible materials, namely polytetrafluoroethylene (PTFE), nylon, hydrogels electrode, and silicone rubber substrate. A signal-processing circuit was used in this patch to convert the sensor signal into a more stable signal (the deviation within 0.1 V), which provides a more effective method for sensing and robot control in a wireless way. Thus, the device can be used to control the movement of robots in real-time and exhibits a good stable performance. A specific algorithm was used in this patch to convert the 1D serial number into a 2D coordinate system, so that the click of the finger can be converted into a sliding track, so as to achieve the trajectory generation of a robot in a wireless way. It is believed that the device-based human–machine interaction with minimalist design has great potential in applications for contact perception, 2D control, robotics, and wearable electronics.


Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2599
Author(s):  
Leire Francés-Morcillo ◽  
Paz Morer-Camo ◽  
María Isabel Rodríguez-Ferradas ◽  
Aitor Cazón-Martín

Wearable electronics make it possible to monitor human activity and behavior. Most of these devices have not taken into account human factors and they have instead focused on technological issues. This fact could not only affect human–computer interaction and user experience but also the devices’ use cycle. Firstly, this paper presents a classification of wearable design requirements that have been carried out by combining a quantitative and a qualitative methodology. Secondly, we present some evaluation procedures based on design methodologies and human–computer interaction measurement tools. Thus, this contribution aims to provide a roadmap for wearable designers and researchers in order to help them to find more efficient processes by providing a classification of the design requirements and evaluation tools. These resources represent time and resource-saving contributions. Therefore designers and researchers do not have to review the literature. It will no be necessary to carry out exploratory studies for the purposes of identifying requirements or evaluation tools either.


RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8080-8086 ◽  
Author(s):  
Haoxuan Jiao ◽  
Min Zhang ◽  
Chunhui Du ◽  
Ziwei Zhang ◽  
Weihong Huang ◽  
...  

In recent years, stretchable electronics have attracted great attention because of their broad application prospects such as in the field of wearable electronics, skin-like electronics, medical transplantation and human–machine interaction.


Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2711
Author(s):  
Tingting Zhang ◽  
Lingjie Xie ◽  
Junyan Li ◽  
Zheguan Huang ◽  
Hao Lei ◽  
...  

The components in traditional human–machine interaction (HMI) systems are relatively independent, distributed and low-integrated, and the wearing experience is poor when the system adopts wearable electronics for intelligent control. The continuous and stable operation of every part always poses challenges for energy supply. In this work, a triboelectric technology-based all-in-one self-powered HMI system for wireless remote telemetry and the control of intelligent cars is proposed. The dual-network crosslinking hydrogel was synthesized and wrapped with functional layers to fabricate a stretchable fibrous triboelectric nanogenerator (SF-TENG) and a supercapacitor (SF-SC), respectively. A self-charging power unit containing woven SF-TENGs, SF-SCs, and a power management circuit was exploited to harvest mechanical energy from the human body and provided power for the whole system. A smart glove designed with five SF-TENGs on the dorsum of five fingers acts as a gesture sensor to generate signal permutations. The signals were processed by the microcontroller and then wirelessly transmitted to the intelligent car for remote telemetry and control. This work is of paramount potential for the application of various terminal devices in self-powered HMI systems with high integration for wearable electronics.


Author(s):  
Pio Alfredo Di Tore ◽  
Nadia Carlomagno ◽  
Stefano Di Tore ◽  
Maurizio Sibilio

The spread of Natural Interfaces, based on devices which allow the retrieval to the Human Computer Interaction of natural paradigms of human interaction (sound, voice, touch, movement), limiting graphic interfaces: the interaction doesn’t occur “through the mirror” (Carroll, 2012) of the screen, but it takes place through movement, in the natural space of the user, in relation to an augmented (digital) umwelt that inter-acts continuously with the user’s whole body. The aim of this work is to present natural interfaces as the tool that constitutes the effective place of convergence between body and movement, manipulation of spatial reference systems and man-machine interaction, and inquire the possible didactic declinations.


Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-32 ◽  
Author(s):  
Kirthika Senthil Kumar ◽  
Po-Yen Chen ◽  
Hongliang Ren

Flexible and stretchable tactile sensors that are printable, nonplanar, and dynamically morphing are emerging to enable proprioceptive interactions with the unstructured surrounding environment. Owing to its varied range of applications in the field of wearable electronics, soft robotics, human-machine interaction, and biomedical devices, it is required of these sensors to be flexible and stretchable conforming to the arbitrary surfaces of their stiff counterparts. The challenges in maintaining the fundamental features of these sensors, such as flexibility, sensitivity, repeatability, linearity, and durability, are tackled by the progress in the fabrication techniques and customization of the material properties. This review is aimed at summarizing the recent progress of rapid prototyping of sensors, printable material preparation, required printing properties, flexible and stretchable mechanisms, and promising applications and highlights challenges and opportunities in this research paradigm.


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