Passive Infrared Detection

Caniou, Joseph

doi:10.1007/978-1-4757-6140-5

Cited by 39 publications

(19 citation statements)

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“…The variable IR signature approximation which applies calculation of the maximal thermal contrast index (MTCI), which is denoted as C(t), is expressed as the principal parameter in pulsed thermography [17,21,22]. Therefore, this contrast index C(t) can be defined as follows:…”

Section: Methodsmentioning

confidence: 99%

Neonatal non-contact respiratory monitoring based on real-time infrared thermography

et al. 2011

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BackgroundMonitoring of vital parameters is an important topic in neonatal daily care. Progress in computational intelligence and medical sensors has facilitated the development of smart bedside monitors that can integrate multiple parameters into a single monitoring system. This paper describes non-contact monitoring of neonatal vital signals based on infrared thermography as a new biomedical engineering application. One signal of clinical interest is the spontaneous respiration rate of the neonate. It will be shown that the respiration rate of neonates can be monitored based on analysis of the anterior naris (nostrils) temperature profile associated with the inspiration and expiration phases successively.ObjectiveThe aim of this study is to develop and investigate a new non-contact respiration monitoring modality for neonatal intensive care unit (NICU) using infrared thermography imaging. This development includes subsequent image processing (region of interest (ROI) detection) and optimization. Moreover, it includes further optimization of this non-contact respiration monitoring to be considered as physiological measurement inside NICU wards.ResultsContinuous wavelet transformation based on Debauches wavelet function was applied to detect the breathing signal within an image stream. Respiration was successfully monitored based on a 0.3°C to 0.5°C temperature difference between the inspiration and expiration phases.ConclusionsAlthough this method has been applied to adults before, this is the first time it was used in a newborn infant population inside the neonatal intensive care unit (NICU). The promising results suggest to include this technology into advanced NICU monitors.

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Section: Methodsmentioning

confidence: 99%

Neonatal non-contact respiratory monitoring based on real-time infrared thermography

et al. 2011

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“…Modul untuk pendeteksi objek pada sistem ini menggunakansensor passive infrared receiver (PIR) yang diletakkan pada penutup tempat sampah, sensor ini merupakan sensor berbasis infrared, tetapipassive infrared receiver (PIR) berbeda denganactiveinfrared karena passive infrared receiver (PIR) hanya bisa merespon energi dari pancaran sinar infrared yang dipancarkan oleh setiap benda hidup.Salah satu benda yang memiliki pancaran infrared pasif adalah manusia. Pancaran sinar infrared kemudian ditangkap oleh pyroelectric sensor yang merupakan inti dari sensor passive infrared receiver (PIR) yang menyebabkan adanya gallium nitride, caesium nitrat dan litium tantalite bisa menghasilkan arus listrik, karena sinar infrared pasif bisa membawa energi panas [4]. Untuk membuktikan hanya suhu manusia saja yang dapat terdeteksi hal ini dikarenakan terdapat IR filter yang menyaring panjang gelombang sinar infrared pasif.…”

Section: Modul Sensor Pendeteksi Obyekunclassified

Perancangan Tempat Sampah Pembuka Tutup Otomatis dan Indikator Kapasitas

Rahardjo

Suraidi

Utama

2018

TESLA

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Trash bins are available in various places, but many people are still littering. Trash dumped carelessly can cause unpleasant odors, germs and bacteria that cause illness. To revive the public, several bins are made as attractive as possible to increase public interest to dispose trash in place. The trash designed can open the cover automatically, detects the incoming trash and trash detecting capacity when fully filled. When the trash is put in the trash bin, it will be detected and will be immediately issued to the sounds stored via MP3 module that sound "Thank you for throwing trash in its place, keep the environment clean around you". Furthermore, when the photodiode detects the trash that has been fully filled, data will be sent to the LED indicator module through the radio frequencies gaussian frequency shift keying (GFSK) modulation. Based on the tests performed, the entire sensor module, processor module, the transmitter module and receiver module work properly and effectively. The system has been designed in expectation helping to help the people to dispose of trash in place.

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“…While investigating low‐temperature processing routes, it is also important to consider the effects on the long‐term stability of the resulting materials. In conventionally processed nickel manganite spinels, aging is observed during which the electrical resistivity increases over time . It is believed that the number of conductive pathways through the material decreases while the concentration of lattice imperfections increases and that the aging is a function of the thermistor composition rather than the electrode‐semiconductor interface .…”

Section: Introductionmentioning

confidence: 99%

“…In conventionally processed nickel manganite spinels, aging is observed during which the electrical resistivity increases over time. 2,6,[13][14][15][16][17][18][19][20][21] It is believed that the number of conductive pathways through the material decreases while the concentration of lattice imperfections increases 14,15 and that the aging is a function of the thermistor composition rather than the electrode-semiconductor interface. 2 The aging coefficient typically represented by:…”

Section: Introductionmentioning

confidence: 99%

Low Temperature Crystallization of Metastable Nickel Manganite Spinel Thin Films

Schulze

John

et al. 2012

J. Am. Ceram. Soc.

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Single‐phase metastable cubic spinel nickel manganite films, 0.5 ≤ Mn/(Mn+Ni) ≤ 0.8, were produced using chemical solution deposition. Of these, the sample with Mn/(Mn+Ni) = 0.80 showed the lowest electrical resistivity. Films annealed in Argon at 400°C for 5 h exhibit temperature coefficient of resistance values ranging from −3.81 to −3.93%/K and electrical resistivities of ~10 kΩ‐cm. It was found by transmission electron microscopy that the metastable spinel phase appeared in both pyrolyzed and post‐deposition annealed films. Spectroscopic ellipsometry measurements over the spectral range from 0.75 to 6.0 eV showed that the complex dielectric function spectra (ε = ε1 + iε2) varied as a function of the annealing conditions, due at least in part to changes in film density. Aging experiments have been used to identify variations in resistivity and temperature coefficient of resistance as functions of time to assess material stability. As a result, the aging coefficient was 6.5% for a film with Mn/(Ni+Mn) = 0.80 after aging at 150°C for 500 h.

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Passive Infrared Detection

Cited by 39 publications

References 0 publications

Neonatal non-contact respiratory monitoring based on real-time infrared thermography

Neonatal non-contact respiratory monitoring based on real-time infrared thermography

Perancangan Tempat Sampah Pembuka Tutup Otomatis dan Indikator Kapasitas

Low Temperature Crystallization of Metastable Nickel Manganite Spinel Thin Films

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