E-Textile Based Automatic Activity Diary for Medical Annotation and Analysis

Edmison, J.; Lehn, David I.; Jones, Mark T.; Martin, Tom

doi:10.1109/bsn.2006.20

Cited by 11 publications

(5 citation statements)

References 6 publications

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“…The combination of electronic and textile technologies can be particularly useful in different applications, for instance to detect the physical parameters (such as temperature, heart rate etc.) of patients [4], to increase the safety level of people who work in dangerous environments, by monitoring their vital parameters [5], or simply to provide power supply and/or data transmission of portable electronic systems [6]. At the moment, different typologies of textile sensors have already been reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

Woven Temperature and Humidity Sensors on Flexible Plastic Substrates for E-Textile Applications

et al. 2013

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In this paper, a woven textile containing temperature and humidity sensors realized on flexible, plastic stripes is presented. The authors introduce two different sensors fabrication techniques: the first one consists of a conventional photolithography patterning technique; the second one, namely inkjet-printing, is here presented as an effective, lowcost alternative. In both cases, we obtain temperature and humidity sensors that can be easily integrated within a fabric by using a conventional weaving machine. All the sensors are fully characterized and the performances obtained with the two different fabrication techniques are compared and discussed, pointing out advantages and drawbacks resulting from each fabrication technique. The bending tests performed on these sensors show that they can be successfully woven without being damaged. A demonstrator, consisting of a mechanical support for the e-textile, a read-out electronic circuit, and a graphical PC interface to monitor the acquisition of humidity and temperature values, is also presented and described. This paper opens an avenue for real integration between printed electronics and traditional textile technology and materials. Printing techniques may be successfully used for the fabrication of e-textile devices, paving the way for the production of large area polymeric stripes and thus enabling new applications that, at the moment, cannot be developed with the standard lithography methods.Index Terms-E-textiles, humidity and temperature sensors, inkjet-printing, plastic and flexible substrates, wearable electronics. Manuscript

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Section: Introductionmentioning

confidence: 99%

Woven Temperature and Humidity Sensors on Flexible Plastic Substrates for E-Textile Applications

et al. 2013

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“…This paper gives a detailed insight into how body shadowing changes when devices are located on different parts of the human bodies. Among the applications which involve body-to-body communications, "smart clothes" [8] using E-textiles have been used in emergency services and firefighters [9], medical monitoring [10], militaries [11], sports, as well as in entertainment industries [12]. Recent advances in small and wearable antennas for body-area networks (BANs) make it possible to embed antennas easily into the smart clothes (e.g., [13]- [15]).…”

Section: Introductionmentioning

confidence: 99%

Characterization of the Indoor Multiantenna Body-to-Body Radio Channel

Wang

Bonev

Nielsen

et al. 2009

IEEE Trans. Antennas Propagat.

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In this paper, we investigate the wideband body-to-body radio channel with multiple antennas at both ends based on a time-domain radio channel measurement campaign. Four single-element transmitters and eight quad-element receivers were mounted on three test people. Both directional and omnidirectional antennas have been investigated. A comparison between electromagnetic antenna simulations and the measurements shows that the multipath environment reduces the body losses effectively. Channel characterizations in terms of path loss, body shadowing, small-scale fading, and spatial correlation have been derived. Small path-loss exponents ( 2 0) are observed in the investigated environments. Considerable power loss due to body blockage makes the body shadowing a prominent factor in the short-range body-to-body communications. Distributed antenna selection diversity is presented to mitigate the body shadowing. A 5-dB diversity gain in the average received power at the mean and 10% outage levels have been identified based on the measurements with two distributed antennas mounted on the transmitter and receiver person and without channel-state information feedback to the transmitter.

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“…Because of their proximity to the human body, e-textile sensors integrated into clothing represent an intuitive approach to sensing body signals and movements, and this approach has particular benefits for long-term monitoring scenarios, where user comfort is paramount. For example, e-textile systems have been developed that automatically generate an activity diary of healthcare monitoring applications, allowing the annotation of medical data with different user activities and contexts, without requiring user intervention [1]. Garment-integrated sensors have the potential to sense body movements without disrupting the outward aesthetics of self-presentation and dress.…”

Section: Introductionmentioning

confidence: 99%

“…Bulky and uncomfortable wearable solutions for the wearer have been shown to affect the quality of the measured data [4] and may also affect the wearer's attention and cognitive processes [5]. Sensing techniques that focus on bend and stretch tend to be possible with more textile-like sensors, either fiber-type sensors [6], stitched or knitted sensors [1,5] or printed sensors [7], but for some applications, these may not provide enough information or enough accuracy to fully characterize movement and position. Coupling garment-integrated sensing with existing body sensing techniques could be beneficial to the overall system accuracy and may allow the number of rigid sensing units to be decreased.…”

Section: Introductionmentioning

confidence: 99%

Garment-Integrated Bend Sensor

Gioberto

Dunne

2014

Electronics

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Garment-integrated sensors equip clothes with a smart sensing capability, while preserving the comfort of the user. However, this benefit can be to the detriment of sensing accuracy due to the unpredictability of garment movement (which affects sensor positioning) and textile folds (which can affect sensor orientation). However, sensors integrated directly into garments or fabric structures can also be used to detect the movement of the garment during wearing. Specifically, a textile bend sensor could be used to sense folds in the garment. We tested a garment-integrated stitched sensor for five types of folds, stitched on five different weights of un-stretchable denim fabric and analyzed the effects of fold complexity and fabric stiffness, under un-insulated and insulated conditions. Results show that insulation improves the linearity and repeatability of the sensor response, particularly for higher fold complexity. Stiffer fabrics show greater sensitivity, but less linearity. Sensor response amplitude is larger for more complex fold geometries. The utility of a linear bending response (insulated) and a binary shorting response (un-insulated) is discussed. Overall, the sensor exhibits excellent repeatability and accuracy, particularly for a fiber-based, textile-integrated sensor.

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E-Textile Based Automatic Activity Diary for Medical Annotation and Analysis

Cited by 11 publications

References 6 publications

Woven Temperature and Humidity Sensors on Flexible Plastic Substrates for E-Textile Applications

Woven Temperature and Humidity Sensors on Flexible Plastic Substrates for E-Textile Applications

Characterization of the Indoor Multiantenna Body-to-Body Radio Channel

Garment-Integrated Bend Sensor

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