scholarly journals МЕТОДИКА ВИЗНАЧЕННЯ НОМІНАЛУ НАВІСНИХ ЕЛЕМЕНТІВ ШЛЕЙФІВ НЕАДРЕСНОЇ ПОЖЕЖНОЇ СИГНАЛІЗАЦІЇ

2020 ◽  
pp. 6-13
Author(s):  
Терлецький Т. В. ◽  
Кайдик О. Л. ◽  
Євсюк М. М. ◽  
Ткачук А. А. ◽  
Сомов Д. О.

The fire alarm system shall detect the initial signs of fire at an early stage of its occurrence and shall not give false positives. It also depends on balancing the fire alarm loop with the fire receiving control device. The use of devices from different manufacturers in the construction of a fire alarm may result in the malfunctioning of such a system and giving false signals.The article presents the results of the analysis of the state of non-address fire control receivers of different manufacturers, depending on the mode of the fire alarm loop, in which he may be. The received generalized nomogram of states of non-address control devices depending on the resistance of the fire plume is presented. A method for determining the resistance of loop elements against different fire detectors is proposed and an appropriate algorithm is developed.

2014 ◽  
Vol 971-973 ◽  
pp. 1041-1044
Author(s):  
Hui Jun Wang ◽  
Tao Zhang

In order to solve the existing automatic fire alarm system shortcomings, such as high rate of false positives and poor reliability, this paper introduces an intelligent fire alarm system in the composition of MCU based on the CAN bus technology. The system, with the control core of STM32F103, uses multiple sensor information fusion technology to realize the fire warning, and adopts the advanced CAN bus technology to realize efficient, reliable and economic connections between the sensor and the fire linkage. Practice shows that the system is of high real-time, accuracy, and can meet the requirements of fire control in buildings.


2021 ◽  
Vol 257 ◽  
pp. 01015
Author(s):  
Rong Cheng ◽  
Linjie Chai ◽  
Shiyao Hu

It is very important to identify fires in substations. Traditional fire alarm systems have problems such as low sensitivity and slow response. This article introduces the working principle of a fire alarm system based on artificial intelligence. And this article also designs different smoke particle sampling schemes for different areas in the substation, such as functional rooms/cable trenches, to ensure the correct operation of the system combined with the actual conditions of each area. Resulting that the fire alarm system based on artificial intelligence can detect the fire at the early stage and alarm in time.


2021 ◽  
Vol 30 (5) ◽  
pp. 76-83
Author(s):  
A. N. Chlenov ◽  
T. A. Butcinskaya

Introduction. Fire alarm system controllers are the main technical aids that serve as the backbone of a fire alarm system (a unit) at a facility. They consolidate fire alarm messages, coming from fire detectors, analyze, process, and deliver them to the user and display them in the pre-set format. The technical capacity of fire alarm system controllers is constantly improving in line with the technical progress and tightening fire safety requirements.Aims and purposes. The purpose of the article is to analyze the state of and trends in the development of fire alarm system controllers, that improve the fire safety of protected facilities. The task encompasses the retrospective review of principal tactical and technical characteristics of fire alarm devices for the period starting from the early 1950s to the present time in Russia, as well as the statistical analysis of the pace of their supply on the market of automatic fire fighting systems.Methods. Methods of system analysis and mathematical statistics were used.Results and discussion. The main stages of development of instruments for fire alarm systems that are reflective of the technical progress, primarily in the field of radio electronics, as well as the socio-economic transformations in Russia are specified. The article presents the results of statistical studies, carried out by the co-authors at different times and characterizing a change in the Russian market based on the comparative data on domestic and foreign alarm systems. The main trends in the development of the product mix and technical specifications of devices during the analyzed period are identified. The co-authors focus on the generalized layout of a blockmodular apparatus of a fire alarm system controller and determine the requirements for communication between functional modules to ensure the reliable operation of a fire alarm system.Conclusions. The main trends in the development of fire alarm system controllers, designated for fire alarm systems, focus on the application of new communication technologies and microelectronic devices that solve comprehensive safety problems with regard for the top-priority requirements of fire safety. The pace of improvement of tactical technological characteristics of devices is reflective of the state of and trends in the development of automatic fire fighting systems in Russia.


2015 ◽  
Vol 793 ◽  
pp. 578-584
Author(s):  
M.S. Jamri ◽  
Zul Hasrizal Bohari ◽  
M.F. Baharom ◽  
M.H. Jali ◽  
M.N.M. Nasir ◽  
...  

This paper discussed on design and development of fire warning system using automated remote messaging method. This device enables to alert the owner whenever fire occur that need rapid attention towards the building. This is maybe due to carelessness of user or gas leakage. Fire warning system is an existing project but it will be enhanced. This project discussed the design and implementation of a fire alarm system using the microcontroller which controlled the entire system. This system comprised of smoke detector that linked to PIC and GSM Modem. When smoke detected, the fire alarm will triggered and send a signal to the PIC. The PIC will process the data and transmit the signal to the GSM modem. The GSM modem will send message to alert the building owner. The owner can make further action by informing the nearest fire department. This module is applied for transferring of GSM SMS message to the owner mobile number. The devices can be the early and fast prevention system for building owner.


2014 ◽  
Vol 977 ◽  
pp. 330-333
Author(s):  
Qi Lin Hao ◽  
Ping Xian Yang ◽  
Ming Jie Wang ◽  
Rui Ma

In this paper, in order to achieve real-time remote monitoring of fire site, we designed a intelligent remote fire monitoring system based on ZigBee network and GPRS network. This system, used ZigBee and sensor to build data acquisition and short distance transmission network and combined with GPRS wireless data transmission and SMS alarm ,cooperates with the server and PC to build a remote monitoring scheme based on GRPS.


Author(s):  
Girish Joshi ◽  
Bikash Pal ◽  
Iltaf Zafar ◽  
Shruti Bharadwaj ◽  
Susham Biswas

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