000096117 001__ 96117 000096117 005__ 20210902121907.0 000096117 0247_ $$2doi$$a10.3390/s20185446 000096117 0248_ $$2sideral$$a120416 000096117 037__ $$aART-2020-120416 000096117 041__ $$aeng 000096117 100__ $$aVanegas Vásquez, Erik 000096117 245__ $$aSensing Systems for Respiration Monitoring: A Technical Systematic Review 000096117 260__ $$c2020 000096117 5060_ $$aAccess copy available to the general public$$fUnrestricted 000096117 5203_ $$aRespiratory monitoring is essential in sleep studies, sport training, patient monitoring, or health at work, among other applications. This paper presents a comprehensive systematic review of respiration sensing systems. After several systematic searches in scientific repositories, the 198 most relevant papers in this field were analyzed in detail. Different items were examined: sensing technique and sensor, respiration parameter, sensor location and size, general system setup, communication protocol, processing station, energy autonomy and power consumption, sensor validation, processing algorithm, performance evaluation, and analysis software. As a result, several trends and the remaining research challenges of respiration sensors were identified. Long-term evaluations and usability tests should be performed. Researchers designed custom experiments to validate the sensing systems, making it difficult to compare results. Therefore, another challenge is to have a common validation framework to fairly compare sensor performance. The implementation of energy-saving strategies, the incorporation of energy harvesting techniques, the calculation of volume parameters of breathing, or the effective integration of respiration sensors into clothing are other remaining research efforts. Addressing these and other challenges outlined in the paper is a required step to obtain a feasible, robust, affordable, and unobtrusive respiration sensing system. 000096117 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T49-20R$$9info:eu-repo/grantAgreement/ES/UZ/UZCUD2019-TEC-02 000096117 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/ 000096117 590__ $$a3.576$$b2020 000096117 591__ $$aINSTRUMENTS & INSTRUMENTATION$$b14 / 64 = 0.219$$c2020$$dQ1$$eT1 000096117 591__ $$aCHEMISTRY, ANALYTICAL$$b26 / 83 = 0.313$$c2020$$dQ2$$eT1 000096117 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b82 / 273 = 0.3$$c2020$$dQ2$$eT1 000096117 592__ $$a0.636$$b2020 000096117 593__ $$aAnalytical Chemistry$$c2020$$dQ2 000096117 593__ $$aAtomic and Molecular Physics, and Optics$$c2020$$dQ2 000096117 593__ $$aBiochemistry$$c2020$$dQ2 000096117 593__ $$aMedicine (miscellaneous)$$c2020$$dQ2 000096117 593__ $$aInformation Systems$$c2020$$dQ2 000096117 593__ $$aInstrumentation$$c2020$$dQ2 000096117 593__ $$aElectrical and Electronic Engineering$$c2020$$dQ2 000096117 655_4 $$ainfo:eu-repo/semantics/review$$vinfo:eu-repo/semantics/publishedVersion 000096117 700__ $$0(orcid)0000-0002-1561-0536$$aIgual Catalán, Raúl$$uUniversidad de Zaragoza 000096117 700__ $$0(orcid)0000-0001-7550-6688$$aPlaza García, Inmaculada$$uUniversidad de Zaragoza 000096117 7102_ $$15008$$2785$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Tecnología Electrónica 000096117 7102_ $$15009$$2535$$aUniversidad de Zaragoza$$bDpto. Ingeniería Eléctrica$$cÁrea Ingeniería Eléctrica 000096117 773__ $$g20, 18 (2020), 5446 [84 pp.]$$pSensors$$tSensors (Switzerland)$$x1424-8220 000096117 8564_ $$s21073479$$uhttps://zaguan.unizar.es/record/96117/files/texto_completo.pdf$$yVersión publicada 000096117 8564_ $$s506428$$uhttps://zaguan.unizar.es/record/96117/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000096117 909CO $$ooai:zaguan.unizar.es:96117$$particulos$$pdriver 000096117 951__ $$a2021-09-02-10:40:11 000096117 980__ $$aARTICLE