The Impact of Temperature of the Tripping Thresholds of Intrusion Detection System Detection Circuits

Łukasiak, Jarosław; Rosiński, Adam; Wiśnios, M.

doi:10.3390/en14206851

Cited by 8 publications

(7 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Importantly, attempts at implementing such actions are already in progress. Examples include an analysis of response-resistive thresholds of detection lines (which are detection mains for intrusion and hold-up alarm systems) within a diverse climatic environment [45]. Although this is an example of a practical verification of ESS function implementation correctness under variable conditions, it directly applies to its protection potential and fully falls in line with the presented philosophy.…”

Section: Technical and Functional Properties Of Fuse-linksmentioning

confidence: 99%

Method for Evaluating the Effectiveness of Electrical Circuit Protection with Miniature Fuse-Links

2023

Self Cite

View full text Add to dashboard Cite

Miniature fuses as an anti-damage subsystem perform the important function of protecting electronic devices and systems against permanent damage that may result in electric shocks, fire risks, etc. Their role becomes particularly important when they are installed in such special systems as electronic security systems (ESS). For this reason, there is a need for practical verification of their protective properties. The article presents the results of destructive tests of the circuit-breaking time of miniature fuse-links considered in terms of their usefulness in the ESS with the use of a passive experimental add-on, developed at the Military University of Technology in Warsaw. The characteristics of the measuring attachment circuit and the measurement methodology used were presented. Based on the obtained measurement points of the obtained time–current characteristics, an attempt was made to develop their mathematical model using numerical methods in the field of non-linear regression, using the least squares optimization method (Levenberg–Marquardt algorithm). An exemplary classification of miniature fuse-links has been proposed due to their protective properties of circuits in the context of their use in electronic security systems. The considerations were summarized with an economic analysis of the tested fuse links. The conclusions include proposals for changes to the provisions of the European standard PN-EN 50131-1:2009 “Alarm systems: Intrusion and hold-up systems Part 1: System requirements” and Polish Defence Standard NO-04-A004-8 2016 “Military facilities. Alarm systems. Part 8: Operation”.

show abstract

Section: Technical and Functional Properties Of Fuse-linksmentioning

confidence: 99%

Method for Evaluating the Effectiveness of Electrical Circuit Protection with Miniature Fuse-Links

2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…According to the article's authors and available source literature studies, there are no standards and legal requirements in this regard [60][61][62][63]. Proceeding with the design process requires prior testing of the electroclimate, including vibrations and noise [64][65][66][67]. Such solutions (environmental measurements and assessment) also mean a lower probability of ESS false alarms [68][69][70][71].…”

Section: Overview Of Issues Related To Processes Associated With the ...mentioning

confidence: 99%

The Dynamic Change in the Reliability Function Level in a Selected Fire Alarm System during a Fire

Paś,

Klimczak,

Rosiński

et al. 2024

Sensors

Self Cite

View full text Add to dashboard Cite

This article discusses fundamental issues associated with the functional reliability of selected fire alarm systems (FASs) in operation during building fires. FASs operate under diverse external or internal natural environmental conditions, and the operational process of FAS should take into account the impacts of physical phenomena that occur during fires. Their operation is associated with the constant provision of reliability. FAS designers should also consider the system’s reliability when developing fire control matrices, tables, algorithms, or scenarios. All functions arising from an FAS control matrix should be implemented with a permissible reliability level, RDPN(t), prior to, as well as during, a fire. This should be assigned to the controls saved in the fire alarm control unit (FCP). This article presents the process by which high temperatures generated during a fire impact the reliability of FAS functioning. It was developed considering selected critical paths for a specific scenario and the control matrix for an FAS. Such assumptions make it possible to determine the impact of various temperatures generated during a fire on the reliability of an FAS. To this end, the authors reviewed that the waveform of the R(t) function changes for a given FAS over time, Δt, and then determined the fitness paths. The critical paths are located within the fire detection and suppression activation process, using FAS or fixed extinguishing devices (FEDs), and the paths were modeled with acceptable and unacceptable technical states. The last section of this article defines a model and graph for the operational process of a selected FAS, the analysis of which enables conclusions to be drawn that can be employed in the design and implementation stages.

show abstract

“…Ensuring an adequate power supply with appropriate rated parameters for all elements located along FAS detection circuits or loops is an issue important in terms of the system's correct functioning [1,69,70]. Often, when calculating the energy balance, ESS designers use proprietary calculators, dedicated simulation applications, or simple computer software, e.g., Excel [2,71,72]. Calculating FAS energy balance is easy for a concentrated system; however, it becomes complex in the case of scattered or mixed systems [1,7,73,74].…”

Section: Literature Reviewmentioning

confidence: 99%

Selected Issues Associated with the Operational and Power Supply Reliability of Fire Alarm Systems

et al. 2022

Self Cite

View full text Add to dashboard Cite

The article reviews issues associated with the use of electronic fire alarm systems (FAS). They are operated in various environments and buildings with varying volumes. FAS have to function properly under different operating conditions associated with their operation, as well as power supply and information inflow. Due to their functions, i.e., ensuring the safety of people, vehicles, logistics bases, airports, etc., FAS have to exhibit an appropriately organized reliability structure associated with their implementation and power supply. Operational studies involving FAS operated in various facilities were conducted to this end. The authors determined damage and recovery time intensities. FAS reliability indicators were also determined. The article presents graphs associated with developing the energy balance for selected FAS. The graphs are consistent with the latest and applicable legal regulations. The next stage of the work related to this article was developing an FAS operation process model and conducting computer simulations in order to determine reliability indicators. Such an approach to the FAS operation process enables a rational selection of technical and organizational solutions aimed at guaranteeing reliability in the course of executing operational tasks associated with ensuring fire safety. FAS operational analysis, developing balance graphs and models, as well as the computer simulation, enabled inferring conclusions that might be useful to the process of engineering and operating such systems.

show abstract

The Impact of Temperature of the Tripping Thresholds of Intrusion Detection System Detection Circuits

Cited by 8 publications

References 42 publications

Method for Evaluating the Effectiveness of Electrical Circuit Protection with Miniature Fuse-Links

Method for Evaluating the Effectiveness of Electrical Circuit Protection with Miniature Fuse-Links

The Dynamic Change in the Reliability Function Level in a Selected Fire Alarm System during a Fire

Selected Issues Associated with the Operational and Power Supply Reliability of Fire Alarm Systems

Contact Info

Product

Resources

About