A Flexible Thermoelectric Generator Worn on the Leg to Harvest Body Heat Energy and to Recognize Motor Activities: A Preliminary Study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F21%3A10247144" target="_blank" >RIV/61989100:27240/21:10247144 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/21:00346887

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/9335632" target="_blank" >https://ieeexplore.ieee.org/document/9335632</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ACCESS.2021.3054405" target="_blank" >10.1109/ACCESS.2021.3054405</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Flexible Thermoelectric Generator Worn on the Leg to Harvest Body Heat Energy and to Recognize Motor Activities: A Preliminary Study

Popis výsledku v původním jazyce

Wearable devices are commonly used to monitor human movement since motor activity is a fundamental element in all phases of a person&apos;s life. Patients with motor disorders need to be monitored for a prolonged period and the battery life can be a limit for such a goal. Here the technique of harvesting energy from body heat to supply energy to wearable devices is investigated. A commercial flexible thermoelectric generator, equipped with an accelerometer, is placed on the lower leg above the ankle. The accelerometer serves to detect diverse motor activities carried out by ten students of VSB-Technical University of Ostrava involved in the execution of two tasks. To summarize, the motor activities analyzed in the proposed work are: &quot;Sit&quot;, &quot;Walk&quot;, &quot;Rest&quot;, &quot;Go biking&quot;, &quot;Rest after biking&quot;, and &quot;Go down and up the stairs&quot;. The maximum measured value of power density was 20.3 mu W cm(-2) for the &quot;Walk&quot; activity, corresponding to a gradient of temperature between the hot and cold side of the thermocouples constituting the flexible thermoelectric generator of 1.5 degrees C, while the minimum measured value of power density was 8.3 mu W cm(-2) for the &quot;Sit&quot; activity, corresponding to a gradient of temperature of 1.1 degrees C. Moreover, a mathematical model was developed for the recognition of motor activities carried out during the execution of the experiments. As a preliminary result, it is possible to state that semi-stationary parts of the signal generated by the thermoelectric generator can be traced back to the performance of an activity.

Název v anglickém jazyce

A Flexible Thermoelectric Generator Worn on the Leg to Harvest Body Heat Energy and to Recognize Motor Activities: A Preliminary Study

Popis výsledku anglicky

Wearable devices are commonly used to monitor human movement since motor activity is a fundamental element in all phases of a person&apos;s life. Patients with motor disorders need to be monitored for a prolonged period and the battery life can be a limit for such a goal. Here the technique of harvesting energy from body heat to supply energy to wearable devices is investigated. A commercial flexible thermoelectric generator, equipped with an accelerometer, is placed on the lower leg above the ankle. The accelerometer serves to detect diverse motor activities carried out by ten students of VSB-Technical University of Ostrava involved in the execution of two tasks. To summarize, the motor activities analyzed in the proposed work are: &quot;Sit&quot;, &quot;Walk&quot;, &quot;Rest&quot;, &quot;Go biking&quot;, &quot;Rest after biking&quot;, and &quot;Go down and up the stairs&quot;. The maximum measured value of power density was 20.3 mu W cm(-2) for the &quot;Walk&quot; activity, corresponding to a gradient of temperature between the hot and cold side of the thermocouples constituting the flexible thermoelectric generator of 1.5 degrees C, while the minimum measured value of power density was 8.3 mu W cm(-2) for the &quot;Sit&quot; activity, corresponding to a gradient of temperature of 1.1 degrees C. Moreover, a mathematical model was developed for the recognition of motor activities carried out during the execution of the experiments. As a preliminary result, it is possible to state that semi-stationary parts of the signal generated by the thermoelectric generator can be traced back to the performance of an activity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20601 - Medical engineering

Projekt

<a href="/cs/project/EF18_070%2F0010219" target="_blank" >EF18_070/0010219: Mezinárodní mobilita v oblasti Biomechanický energetický generátor pro rozpoznání činností každodenního života</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Access

ISSN

2169-3536

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

15

Strana od-do

20878-20892

Kód UT WoS článku

000616294400001

EID výsledku v databázi Scopus

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