scholarly journals Technical note: Development of a noninvasive respiration rate sensor for cattle

2019 ◽  
Vol 102 (1) ◽  
pp. 690-695 ◽  
Author(s):  
S. Strutzke ◽  
D. Fiske ◽  
G. Hoffmann ◽  
C. Ammon ◽  
W. Heuwieser ◽  
...  
2020 ◽  
Vol 90 (19-20) ◽  
pp. 2258-2274
Author(s):  
Jin-Hee Yang ◽  
Hyun-Seung Cho ◽  
Hwykuen Kwak ◽  
Je-Wook Chae ◽  
Hyeok-Jae Lee ◽  
...  

The strain-gauge type textile sensors adopted in many studies on respiration-sensing wearable systems have been reported to have two major limitations that result in reduced sensing accuracy and insufficient durability of the sensor. The two limitations are the inability to accurately monitor the changes in the three-dimensional (3D) body contour during changes in the respiration cycle and the frequent occurrence of baseline drifts. To solve these issues, this study proposes new types of textile respiration rate sensors with a 3D structure, which measure the respiration rate based on the variation in the size of the contacting section’s surface during respiration, rather than the changes in the length of the sensor, as in existing strain-gauge type sensors. Firstly, the sensing signals were analyzed based on morphology and size measurements. Then, the sensing reliability of three respiration rate sensor types, namely the no-filler, 3D hard, and 3D soft types, was analyzed by comparing their measurements with those of the SS5LB. Finally, the reproducibility and baseline drifts of the sensors’ measurements were evaluated by taking and comparing repeated measurements. As a result, the consistency of the sensing signals of the SS5LB and those of the two types of 3D sensors was higher than those of the no-filler type sensor, and the 3D soft type sensor had the highest reliability and reproducibility among the three new types of sensors. The result showed relatively reduced baseline drifts in the two types of 3D sensors.


2016 ◽  
Vol 94 (12) ◽  
pp. 5434-5438 ◽  
Author(s):  
H. F. M. Milan ◽  
A. S. C. Maia ◽  
K. G. Gebremedhin

2020 ◽  
Vol 241 ◽  
pp. 104270
Author(s):  
Giovanna Araújo de Carvalho ◽  
Ana Karina Dias Salman ◽  
Pedro Gomes da Cruz ◽  
Elaine Coimbra de Souza ◽  
Francyelle Ruana Faria da Silva ◽  
...  

2012 ◽  
Vol 21 (1) ◽  
pp. 11-16 ◽  
Author(s):  
Susan Fager ◽  
Tom Jakobs ◽  
David Beukelman ◽  
Tricia Ternus ◽  
Haylee Schley

Abstract This article summarizes the design and evaluation of a new augmentative and alternative communication (AAC) interface strategy for people with complex communication needs and severe physical limitations. This strategy combines typing, gesture recognition, and word prediction to input text into AAC software using touchscreen or head movement tracking access methods. Eight individuals with movement limitations due to spinal cord injury, amyotrophic lateral sclerosis, polio, and Guillain Barre syndrome participated in the evaluation of the prototype technology using a head-tracking device. Fourteen typical individuals participated in the evaluation of the prototype using a touchscreen.


1998 ◽  
Vol 47 (3) ◽  
pp. 153-160
Author(s):  
Wang ◽  
Park ◽  
Kang ◽  
Oh
Keyword(s):  

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