نتایج جستجو برای: fire detector

تعداد نتایج: 101184  

Journal: :International Journal for Research in Applied Science and Engineering Technology 2018

2007
Johan Siden Andrey Koptyug Mikael Gulliksson Hans-Erik Nilsson

Placing fire detectors in a forest is usually associated with powering problems since the sensors do not have access to external power supply and a periodical change of internal batteries is an undesired option. This paper presents an approach where the fire sensor itself, when heated by nearby fire, generates electrical energy to power a radio transmitter. Presented energizing fire sensor is e...

2004
Sean Phillip Jankiewicz André W. Marshall Richard J. Roby Richard Roby Mike Klassen

Title of Thesis: PREDICTING SMOKE DETECTOR RESPONSE USING A QUANTITATIVE SALT-WATER MODELING TECHNIQUE Sean Phillip Jankiewicz, Master of Sciences, 2004 Thesis Directed By: Professor André W. Marshall Department of Fire Protection Engineering This investigation provides a detailed analysis of the hydraulic analogue technique used as a predictive tool for understanding smoke detector response wi...

2015
VAIJANATH V. YERIGERI PRAMOD ARVIND KULKARNI

A Novel Remote Monitoring of Forest Fire Detection based on WSN VAIJANATH V. YERIGERI , PRAMOD ARVIND KULKARNI 1 Professor & HOD, Department of Instrumentation Engg. Professor & HOD, Department of Electronics & Telecommunication Engineering M.B.E.Society’s College of Engineering AMBAJOGAI-431517 ,Dist:BEED(MS) _________________________________________________________________________ ABSTRACT: A...

2007
Erin Mack Ashley

Title of Document: WAKING EFFECTIVENESS OF EMERGENCY ALERTING DEVICES FOR THE HEARING ABLE, HARD OF HEARING, AND DEAF POPULATIONS Erin Mack Ashley Doctor of Philosophy 2007 Directed By: Associate Professor Dr. James A. Milke Department of Fire Protection Engineering The study presented measures the awakening effectiveness of a number of commercially available emergency alerting devices. Three g...

Journal: :American journal of public health 1985
E McLoughlin M Marchone L Hanger P S German S P Baker

Montgomery County, Maryland was the first major jurisdiction to pass a law requiring smoke detectors in all homes. Smoke detector coverage in the county was evaluated five years after the law's implementation and compared to the coverage in neighboring Fairfax County, Virginia, which has no such law. Firefighters visited 651 randomly selected owner-occupied homes and tested each detector. While...

2004
David L. Urban George W. Mulholland Jiann Yang Thomas G. Cleary

INTRODUCTION The “Smoke” experiment is a flight definition investigation that seeks to increase our understanding of spacecraft fire detection through measurements of particulate size distributions of preignition smokes from typical spacecraft materials. Owing to the catastrophic risk posed by even a very small fire in a spacecraft, the design goal for spacecraft fire detection is to detect the...

Journal: :Scientific Journal of Applied Sciences of Sabratha University 2020

Journal: :EURASIP J. Adv. Sig. Proc. 2008
Sergio Escalera Oriol Pujol Petia Radeva

The goal of interest point detectors is to find, in an unsupervised way, keypoints easy to extract and at the same time robust to image transformations. We present a novel set of saliency features based on image singularities that takes into account the region content in terms of intensity and local structure. The region complexity is estimated by means of the entropy of the gray-level informat...

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