Detecting the audible alarm of residual smoke detectors and its applications

1991 ◽  
Vol 37 (3) ◽  
pp. 401-405
Author(s):  
C.A. Griebell
Keyword(s):  
Audible Alarm ◽  
Smoke Detectors

scholarly journals Alat Pendeteksi Kebakaran Menggunakan SMS

2020 ◽  
Vol 1 (2) ◽  
pp. 251-254
Author(s):  
Sindi Permata Sari ◽  
Oriza Candra ◽  
Jhefri Asmi
Keyword(s):  
Human Factors ◽  
Temperature Sensor ◽  
Human Life ◽  
Fire Detection ◽  
Smoke Detectors ◽  
Fire Detector ◽  
Arduino Uno ◽  
Main Component ◽  
The Brain ◽  
Early Fire Detection

Lately, there are frequent fires caused by human factors. Because we cannot predict the process of fire in advance. And the delay in knowing the occurrence of a fire is very fatal to the safety of human life and property. With advances in technology, we can overcome fires by making early fire detection devices. With the presence of temperature and smoke detectors, we can detect fires as early as possible and be delivered quickly via alarms and SMS gateways. The main component of this fire detector is the Arduino Uno. This Arduino uno acts as the brain of the fire detection device. This tool works based on the detection of the temperature condition by the DHT11 temperature sensor, which is when the temperature is above normal, an alert notification will be sent via the SMS gateway and so will the MQ2 smoke and the buzzer will sound as a warning alarm.

scholarly journals Perancangan Sistem Fire Alarm Kebakaran Pada Gedung Laboratorium XXX

Jurnal Tekno ◽  
2021 ◽  
Vol 18 (2) ◽  
pp. 51-61
Author(s):  
Muhammad Ruslan ◽  
M.Saleh Al-Amin ◽  
Emidiana Emidiana
Keyword(s):  
Pump Power ◽  
Ground Water ◽  
Quantitative Research ◽  
Sprinkler System ◽  
Water Volume ◽  
Water Tank ◽  
Public Areas ◽  
Calculation Results ◽  
Pump Shaft ◽  
Smoke Detectors

Abstract   Fire is a phenomenon that occurs when a material reaches a critical temperature and reacts chemically with oxygen (for example) producing heat, flame, light, smoke, water vapor, carbon monoxide, carbon dioxide, or other products and effects. Fires can occur anywhere, be it in office buildings, residences or public facilities. As for other than in public areas, fires often occur, both in rooms and laboratories, the triggers are almost the same due to negligence and not being careful in using flammable tools. For this reason, the need for a fire detector with a detector system using an alarm so that once a fire occurs, all those in the building can find out through the detector with an alarm sound as a fire marker. In order to reduce casualties, the need for a sprinkler system to extinguish the fire, and can assist the officers or authorities in the building as soon as possible. From the above problems, this research will determine how many detectors and sprinklers are needed, as well as how much water volume, pump power, and ground water tank are needed. This type of research is quantitative research by direct observation of the object under study, then researchers measure the room one by one using a building meter. From the calculation results by taking a sample on the 1st floor, the number of detectors needed is 10 smoke detectors and 3 heat detectors, the number of sprinklers is 47, the volume of water needed is 846 m3, the pump power and ground water tank needed are hydraulic power. pump (HHP) 3,28621 kW, pump shaft power (BHP) 4.38 kW, pump electric power (P) 6 kW, diesel pump (PpD) 4 HP, jocky pump (PJk) 0.6 kW, capacity GWT ( QGWT) 44 m3.

Comments on “Measurements of the characteristic lengths of smoke detectors”

1992 ◽  
Vol 28 (2) ◽  
pp. 106-108
Author(s):  
Richard W. Bukowski
Keyword(s):  
Smoke Detectors

scholarly journals Getting Better Hospital Alarm Sounds Into a Global Standard

2018 ◽  
Vol 26 (4) ◽  
pp. 4-13 ◽  
Author(s):  
Judy Reed Edworthy ◽  
Richard R. McNeer ◽  
Christopher L. Bennett ◽  
Roman Dudaryk ◽  
Siné J. P. McDougall ◽  
...  
Keyword(s):  
Medical Device ◽  
End Users ◽  
Safety Standard ◽  
Constant Attention ◽  
Alarm Signals ◽  
Audible Alarm ◽  
Clinical Environments ◽  
Testing Potential ◽  
Further Development ◽  
Alarm Sounds

The reserved set of audible alarm signals embodied within the global medical device safety standard, IEC 60601-1-8, is known to be problematic and in need of updating. The current alarm signals are not only suboptimal, but there is also little evidence beyond learnability (which is known to be poor) that demonstrates their performance in realistic and representative clinical environments. In this article, we describe the process of first designing and then testing potential replacement audible alarm signals for IEC 60601-1-8, starting with the design of several sets of candidate sounds and initial tests on learnability and localizability, followed by testing in simulated clinical environments. We demonstrate that in all tests, the alarm signals selected for further development significantly outperform the current alarm signals. We describe the process of collecting considerably more data on the performance of the new sounds than exists for the current sounds, which ultimately will be of use to end users. We also reflect on the process and practice of working with the relevant committees and other practical issues beyond the science, which also need constant attention if the alarms we have developed are to be included successfully in an updated version of the standard.

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