Towards a design framework for wearable electronic textiles

Martin, Tom; Jones, Mark T.; Edmison, J.; Shenoy, R.

doi:10.1109/iswc.2003.1241411

“…Hansson et al [7] used accelerometers to measure joint angles. In [15] and [9] the accelerometers were attached to the pants to detect activities like sitting, standing, walking and lying. Toney [14] used conventional pressure sensors to measure finger joint angles.…”

Section: Related Workmentioning

confidence: 99%

Recognizing Upper Body Postures using Textile Strain Sensors

Mattmann

¹

,

Amft

²

,

Harms

³

et al. 2007

2007 11th IEEE International Symposium on Wearable Computers

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In this paper we present a garment prototype using strain sensors to recognize upper body postures. A novel thermoplastic elastomer strain sensor was used for measuring strain in the clothing. This sensor has a linear resistance response to strain, a small hysteresis and can be fully integrated into textile.A study was conducted with eight participants wearing the garment and performing a total of 27 upper body postures. A Naïve Bayes classification was applied to identify the different postures. Nearly a complete recognition rate of 97% was achieved when the classification was adapted to the individual participant. A classification rate of 84% was achieved for an all-user classification and 65% for an independent user. These results show the feasibility to recognize postures with our setup, even in an unseen user setting.Furthermore, we used the garment prototype in a gym experiment to explore its potential for rehabilitation and fitness training. Intensity, speed and number of repetitions could be obtained from the garment sensor data.

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“…The angle formed by these three points as shown in Figure 9 is calculated and the discrete derivative of the resulting angles is the final piezoelectric sensor output. The model was verified using the analytical results from a pendulum in [12]. For this particular appli- ure gives the actual data from a physical piezoelectric sensor.…”

Section: Shape-sensing Pantsmentioning

confidence: 97%

“…In a previous paper, we described the design issues associated with e-textiles [12]. This section summarizes these design issues here to make clear the relationship between the modules of the simulation environment described in Section 3.…”

Section: E-textile Design Issuesmentioning

confidence: 99%

Modeling and simulating electronic textile applications

MartinThomas

¹

,

JonesMark

²

,

EdmisonJoshua

³

et al. 2004

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This paper describes our design of a simulation environment for electronic textiles (e-textiles) and our experiences with that environment. This simulation environment, based upon Ptolemy II, enables us to model a diverse range of areas related to the design of electronic textiles, including the physical environment they will be used in, the behavior of the sensors incorporated into the fabric, the on-fabric network, the power consumption of the system, and the execution of the application and system software. This paper focuses on two aspects of the system, modeling the motion of a person wearing the e-textile and modeling the effect of faults in the e-textile system. To partially validate this environment, we compare simulation results against results from two different physical prototypes, a large-scale acoustic beamformer and a pair of shape-sensing pants.

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“…An open question is whether this goal is feasible, and if so, what is the subset of the population should be used to train the garment to achieve this goal. We have previously reported on using the environment to explore the the dynamic range required of the sensors when placed on different locations on the body and the accuracy of the application when trained on different subsets of the population [12]. The results show that the accuracy is highly dependent on which range of individuals is used to train the neural network.…”

Section: Shape-sensing Pantsmentioning

confidence: 99%

Modeling and simulating electronic textile applications

Martin

¹

,

Jones

²

,

Edmison

³

et al. 2004

Proceedings of the 2004 ACM SIGPLAN/SIGBED Conference on Languages, Compilers, and Tools for Embedded Systems

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This paper describes our design of a simulation environment for electronic textiles (e-textiles) and our experiences with that environment. This simulation environment, based upon Ptolemy II, enables us to model a diverse range of areas related to the design of electronic textiles, including the physical environment they will be used in, the behavior of the sensors incorporated into the fabric, the on-fabric network, the power consumption of the system, and the execution of the application and system software. This paper focuses on two aspects of the system, modeling the motion of a person wearing the e-textile and modeling the effect of faults in the e-textile system. To partially validate this environment, we compare simulation results against results from two different physical prototypes, a large-scale acoustic beamformer and a pair of shape-sensing pants.

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Towards a design framework for wearable electronic textiles

Cited by 46 publications

References 14 publications

Recognizing Upper Body Postures using Textile Strain Sensors

Recognizing Upper Body Postures using Textile Strain Sensors

Modeling and simulating electronic textile applications

Modeling and simulating electronic textile applications

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