نتایج جستجو برای: fire detector

تعداد نتایج: 101184  

Journal: :Han-gukbangjaehakoenonmunjip 2023

After the revision of “Fire Safety Standards for Automatic Fire Alarm System and Visual Equipment (NFSC 203)” in 2015 made it mandatory to install smoke detectors apartments medical facilities, their number has increased significantly. The detector used experiment was a photoelectric spot-type analog detector. conducted by configuring real-time monitoring system. In addition, sensitivity charac...

2016
Divya Sharma Kajal Singh Shipra Aggarwal

This paper proposes a hardware model that provides new fire detection and control mechanism with the interface of artificial neural network and fuzzy logic. This work is based on the integration of hardware module and implementation of artificial neural fuzzy inference system (ANFIS). The hardware consists of temperature sensor, smoke sensor, flame detector and a microcontroller unit. The senso...

2014
Benedikt Schwarz Peter Reininger Daniela Ristanić Hermann Detz Aaron Maxwell Andrews Werner Schrenk Gottfried Strasser

The increasing demand of rapid sensing and diagnosis in remote areas requires the development of compact and cost-effective mid-infrared sensing devices. So far, all miniaturization concepts have been demonstrated with discrete optical components. Here we present a monolithically integrated sensor based on mid-infrared absorption spectroscopy. A bi-functional quantum cascade laser/detector is u...

2017
Oleksii Maksymiv Taras Rak

Techniques to detect the flame at an early stage are necessary in order to prevent the fire and minimize the damage. The flame detection technique based on the physical sensor has limited disadvantages in detecting the fire early. This paper presents the results of using local binary patterns for solving flames detecting problem and proposes modifications to improve the quality of detector work...

2015
Juan Aponte Luis Juan Antonio Gómez Galán Javier Alcina Espigado

A novel sensing device for fire detection in domestic environments is presented. The fire detector uses a combination of several sensors that not only detect smoke, but discriminate between different types of smoke. This feature avoids false alarms and warns of different situations. Power consumption is optimized both in terms of hardware and software, providing a high degree of autonomy of alm...

2015
S. R. Vijayalakshmi S. Muruganand

A design of simple hardware circuit with different kind of fire sensors enables every user to use this wireless fire security system. The challenges in designing the nodes with various types of fire sensors are discussed and the methods to overcome design problems are also analyzed. The circuit is interfaced with the different types of sensor to sense different fire sources such as gas leakage,...

Journal: :Optics letters 2008
Ranga C Jayasinghe Gamini Ariyawansa Nikolaus Dietz A G Unil Perera Steven G Matsik Hongbo B Yu Ian T Ferguson Andrew Bezinger Sylvain R Laframboise Margaret Buchanan Hui Chun Liu

Results are presented for a dual-band detector that simultaneously detects UV radiation in the 250-360 nm and IR radiation in the 5-14 microm regions with near zero spectral cross talk. In this detector having separate UV- and IR-active regions with three contacts (one common contact for both regions) allows the separation of the UV and IR generated photocurrent components, identifying the rela...

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