SensVest - on-body physiological monitoring system

Baber, Chris; Schwirtz, A.; Knight, James F.; Bristow, Huw William; Arvanitis, Theodoros N.; Psomadellis, F.

doi:10.1049/ic:20030153

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…For the detection of human movement, microfabricated silicon accelerometers can be mounted on the fabric of an item of clothing [3]. However, such accelerometers are rigid, potentially causing the wearer discomfort, and the reliable integration of such packaged integrated circuit-type sensors within fabrics is challenging.…”

Section: Introductionmentioning

confidence: 99%

Screen printing of a capacitive cantilever-based motion sensor on fabric using a novel sacrificial layer process for smart fabric applications

Wei

Torah

Yang

et al. 2013

Meas. Sci. Technol.

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Free-standing cantilevers have been fabricated by screen printing sacrificial and structural layers onto a standard polyester cotton fabric. By printing additional conductive layers, a complete capacitive motion sensor on fabric using only screen printing has been fabricated. This type of free-standing structure cannot currently be fabricated using conventional fabric manufacturing processes. In addition, compared to conventional smart fabric fabrication processes (e.g. weaving and knitting), screen printing offers the advantages of geometric design flexibility and the ability to simultaneously print multiple devices of the same or different designs. Furthermore, a range of active inks exists from the printed electronics industry which can potentially be applied to create many types of smart fabric. Four cantilevers with different lengths have been printed on fabric using a five-layer structure with a sacrificial material underneath the cantilever. The sacrificial layer is subsequently removed at 160 °C for 30 min to achieve a freestanding cantilever above the fabric. Two silver electrodes, one on top of the cantilever and the other on top of the fabric, are used to capacitively detect the movement of the cantilever. In this way, an entirely printed motion sensor is produced on a standard fabric. The motion sensor was initially tested on an electromechanical shaker rig at a low frequency range to examine the linearity and the sensitivity of each design. Then, these sensors were individually attached to a moving human forearm to evaluate more representative results. A commercial accelerometer (Microstrain G-link) was mounted alongside for comparison. The printed sensors have a similar motion response to the commercial accelerometer, demonstrating the potential of a printed smart fabric motion sensor for use in intelligent clothing applications.

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Section: Introductionmentioning

confidence: 99%

Screen printing of a capacitive cantilever-based motion sensor on fabric using a novel sacrificial layer process for smart fabric applications

Wei

Torah

Yang

et al. 2013

Meas. Sci. Technol.

View full text Add to dashboard Cite

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A screen printable sacrificial fabrication process to realise a cantilever on fabric using a piezoelectric layer to detect motion for wearable applications

Wei

Torah

Yang

et al. 2013

Sensors and Actuators A: Physical

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Wireless Sensor Networks and Their Applications to the Healthcare and Precision Agriculture

Lin¹,

Chang²,

Liu³

et al. 2011

Wireless Sensor Networks

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Wireless connection based smart sensors network can combine sensing, computation, and communication into a single, small device. Because sensor carries its own wireless data transceiver, the time and the cost for construction, maintenance, the size and weight of whole system have been reduced. Information collected from these sensor nodes is routed to a sink node via different types of wireless communication approaches. Healthcare systems have restricted the activity area of patients to be within the medical health care center or residence area. To provide more a feasible situation for patients, it is necessary to embed wireless communication technology into healthcare systems. The physiological signals are then immediately transmitted to a remote management center for analysis using wireless local area network. Healthcare service has been further extended to become mobile care service due to the ubiquity of global systems for mobile communications and general packet radio service. It is important that using sensors to detect field-environment signals in agriculture is understood since a long time ago. Precision agriculture is a technique of management of large fields in order to consider the spatial and temporal variability. To use more sophisticated sensor devices with capabilities of chemical and biological sensing not only aids the personnel in the field maintenance procedure but also significantly increases the quality of the agricultural product. In this chapter, we examine the fields in healthcare and precision agriculture based on wireless sensor networks. In the application of healthcare systems, a System on a Chip (SoC) platform and Bluetooth wireless network technologies were combined to construct a wireless network physiological signal monitoring system. In the application of precision agriculture, an SoC platform was also used combining the ZigBee technology to consist a field signals monitoring system. In addition to the two applications, the fault tolerance in wireless sensor networks is also discussed in this chapter.

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SensVest - on-body physiological monitoring system

Cited by 3 publications

References 3 publications

Screen printing of a capacitive cantilever-based motion sensor on fabric using a novel sacrificial layer process for smart fabric applications

Screen printing of a capacitive cantilever-based motion sensor on fabric using a novel sacrificial layer process for smart fabric applications

A screen printable sacrificial fabrication process to realise a cantilever on fabric using a piezoelectric layer to detect motion for wearable applications

Wireless Sensor Networks and Their Applications to the Healthcare and Precision Agriculture

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