The electromagnetic environment due to portable sources in a typical hospital room

Vlach, P.; Liu-Hinz, C.; Segal, B.; Skulic, B.; Pavlasek, T.

doi:10.1109/iembs.1995.575311

Cited by 14 publications

(4 citation statements)

References 2 publications

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“…In this paper, emission limits for narrowband and broadband signals were first recommended for devices used in hospitals. In 1997, the first 24-hour measurements showing temporal dependencies of the measured field within a hospital for frequencies up to 1 GHz were described [16]. In 2003 the electromagnetic field within the ISM band ([2.40 − 2.4835] GHz) was evaluated [17].…”

Section: Introductionmentioning

confidence: 99%

Threshold setting for the evaluation of the aggregate interference in ISM band in hospital environments

Mucchi

Carpini

D'Anna

et al. 2015

2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)

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Estimation of the aggregate interference is required in order to predict the performance of a wireless system in its working environment. Body Area Networks (BANs) for healthcare applications are becoming a reality, allowing patients to be monitored continuously without forcing them to stay in bed or in hospital. The increasing number of wireless medical devices makes the ISM (Industrial, Scientific and Medical) band particularly crowded. If new smart BANs have to correctly operate in hospital, coexistence with the existing wireless devices must be accurately investigated, starting with studying the interference in the operating frequency band. The intensity of the interference is strongly related to the chosen threshold, which defines if a received sample has to be categorized as interference or noise. Adaptive threshold methods outperform the non-adaptive ones, due to flexibility and robustness. Among the adaptive threshold methods, the forward consecutive mean excision (FCME) is one of the most attractive, since it is blind, computationally simple and efficient. When applied to large data set, it may require too long time to be computed, thus median filtering has been proposed (med-FCME). In this paper we compare the performance of fixed vs adaptive threshold methods. The two methods are applied to a set of real measurements taken in a modern city hospital over one week.

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Section: Introductionmentioning

confidence: 99%

Threshold setting for the evaluation of the aggregate interference in ISM band in hospital environments

Mucchi

Carpini

D'Anna

et al. 2015

2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)

View full text Add to dashboard Cite

show abstract

“…In this paper, emission limits for narrowband and broadband signals were first recommended for devices used in hospitals. In 1997, the first 24-hour measurements showing temporal dependencies of the measured field within a hospital for frequencies up to 1 GHz were described [8]. In 2003 the electromagnetic field within the ISM band ([2.40 − 2.4835] GHz) was evaluated [9].…”

Section: Introductionmentioning

confidence: 99%

Aggregate Interference in ISM Band: WBANs need cognitivity?

Mucchi¹,

Carpini²

2014

Proceedings of the 9th International Conference on Cognitive Radio Oriented Wireless Networks

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Estimating the aggregate interference is required in order to predict the performance of a wireless system in its working environment. Body Area Networks (BANs) for healthcare applications are becoming a reality, allowing patients to be monitored continuously without forcing them to stay in bed or in hospital. The increasing number of wireless medical devices makes the ISM (Industrial, Scientific and Medical) band particularly crowded. If new smart BANs have to correctly operate in hospital, coexistence with the existing wireless devices must be accurately investigated, starting with studying the interference in the operating frequency band. In this paper we propose an interference model based on real measurements carried out in the emergency ward of a modern city hospital, as well as in home and office environments, which are the three main locations where a patient monitored by a WBAN spends the most of the time. The measurements are used to model the probability density function of the aggregate interference as well as the occupancy of the channel.

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“…Aunque los valores promedio medidos no fueron superiores a 0,3 V/m, en algunos sitios encontró valores entre 1-2 V/m. En 1997, otra publicación de Vlach et al (1997) presentó los resultados de mediciones de emisiones radiadas en la banda de telefonía celular. Siguiendo esta línea, Davis et al (1997;1998) identificaron los teléfonos celulares y los radioteléfonos como una fuente de riesgo potencial.…”

Section: Introductionunclassified

Medición del Campo Eléctrico Ambiente de Alta Frecuencia en un Hospital

Escobar-Ordoñez

López

Ramírez

et al. 2010

TecnoL.

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Equipo médico, interferencia electromagnética, campo eléc-trico, radiofrecuencia. Revista Tecnológicas [86]Medición del campo eléctrico ambiente de alta frecuencia en un hospital AbstractEach hospital has a unique electromagnetic environment. This can be extremely variable, particularly as a result of the great growth of wireless communications. This complex system is marked by numerous sources of electromagnetic energy both inside and outside hospitals and clinics. In this paper, the results of high frequency electric field measurements carried out in different departments of a large hospital are presented. The results show that electric field environment in all rooms measured was lower than radiated immunity test levels for medical devices established by international standard. KeywordsMedical equipment, electromagnetic interference, electric field, radiofrequency.

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The electromagnetic environment due to portable sources in a typical hospital room

Cited by 14 publications

References 2 publications

Threshold setting for the evaluation of the aggregate interference in ISM band in hospital environments

Threshold setting for the evaluation of the aggregate interference in ISM band in hospital environments

Aggregate Interference in ISM Band: WBANs need cognitivity?

Medición del Campo Eléctrico Ambiente de Alta Frecuencia en un Hospital

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