NDLI: An analog front-end of a fire detection SoC for a fire alarm system

Content Provider	IEEE Xplore Digital Library
Author	Jimin Cheon Inhee Lee Jeonghwan Lee Youngcheol Chae Gunhee Han Youngsin Yoo
Copyright Year	2008
Description	Author affiliation: Res. Lab., CNEGS, Inc., Anyang (Youngsin Yoo) \|\| Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul (Jimin Cheon; Inhee Lee; Jeonghwan Lee; Youngcheol Chae; Gunhee Han)
Abstract	An analog front-end of a fire detector, which is comprised of a smoke detector, a heat detector and an ADC, is proposed. The smoke detector with active pixel structure works by optical detection measuring the amount of IR LED light scattered by smoke particles. It achieves the reduction of the mismatch from process variation, the influence of dark current and the reset noise by correlated double sampling scheme. The heat detector is a voltage divider consisting of a negative temperature coefficient thermistor and two resistors. It outputs the voltage corresponding to ambient temperature. Each output voltage from the two detectors is alternately converted into an 8-bit code by a successive approximation ADC every 1 second. The test chip was fabricated in 0.35-mum CMOS process and tested in optical chamber. It can detect smoke density range from 4%/m to 25%/m with plusmn 1%/m accuracy and ambient temperature range from 25degC to 95degC with plusmn 1degC accuracy. Maximum power consumption is 71 muW.
Starting Page	772
Ending Page	775
File Size	820418
Page Count	4
File Format	PDF
ISBN	9781424425808
ISSN	19300395
DOI	10.1109/ICSENS.2008.4716555
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-26
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fires Alarm systems Smoke detectors Optical scattering Voltage Optical noise Temperature Testing Infrared detectors Optical detectors
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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