The paper presents a method for assessing operation processes Fire Alarm Systems (FAS) applied in civil structures, based on use analysis. Individual FAS devices include components with varying ‘lifetimes’ and damage intensities λ. This is because these elements are operated different internal external environments. Probability distributions various λ recovery µ intensity values must, hence, be taken into account the process to determine R(t) reliability. life cycle of comprising can divided...

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 when they are installed such special security (ESS). For this reason, there is a need for practical verification their protective properties. The article presents results destructive tests circuit-breaking time miniature fuse-links considered terms usefulness ESS...

The article reviews issues associated with the operation of stationary and non-stationary electronic fire alarm systems (FASs). These are employed for protection selected buildings (stationary) or to monitor vast areas, e.g., forests, airports, logistics hubs, etc. (non-stationary). An FAS is operated under various environmental conditions, indoor outdoor, favourable unfavourable process. Therefore, an has exhibit a reliable structure in terms power supply operation. To this end, paper...

This research paper discusses issues regarding the impact of temperature on tripping thresholds intrusion detection system circuits. The objective conducted studies was verification a hypothesis assuming that variability an system’s (considered as whole) operating environment can electrical parameters its circuits significantly enough so it enables change in interpretation state observed within given circuit fragment from “no violation” to “circuit violation”. covered placed climatic chamber...

The safety of public utility facilities is a function not only effectiveness the electronic systems, used for protection property and persons, but it also depends on proper functioning their power supply systems. authors research paper analysed which are in buildings access control system that integrated with closed-circuit TV. Access Control System set electronic, electromechanical electrical devices computer software controlling operation above-mentioned elements, aimed at identification...

Abstract The article presents a method of teaching the process diagnosing technical and functional condition fire alarm system (SSP). system’s laboratory model is representation real system. lecturer has opportunity to inflict several different independent damage. aim exercise familiarize students with methodology structure process.

Abstract The theme of the publication is to review techniques and measures affecting reliability process image acquisition face. This issue closely linked biometric identification based on facial image. focus here in particular factors external / environmental, not taking into account quality this same algorithms. Tests were carried out both a database built model face as well basis actual images. object research being predestined only for stationary applications, but can also be used mobile objects

Classic Fire Alarm Systems (FAS) are characterized by a high level of false alarms in relation to the number confirmed reports. To increase reliability operation this type system, it was proposed integrate with Video-Based Flame Detection System (VBFDS). For purpose, video-based fire detection algorithm designed. In addition, methods popular literature for increasing such systems, as color filtering, Tracking Growth Object (TGO) factor, and use Naive-Bayes (NB) classifier, were tested. The...

The article presents an original test stand for the analysis of combustion products, utilizing spectrophotometric to identify material being burned. authors conducted a theoretical concerning studies based on use light attenuation parameter in various media and presented preliminary results from tests performed designed stand. includes summary presentation measurements other parameters calculated obtained data. Additionally, they discussed potential methods benefits implementing this...

This article presents selected issues related to the reliability of power supply for electronic security systems (ESSs) used in smart buildings (SBs). ESSs operate diverse environmental conditions and are responsible safety lives, property natural environment SB users. The operational tasks SBs require a continuous from various sources, including renewable energy sources. authors conducted an analysis SBs, which enabled development model. For proposed model, designed proprietary graph ESS...

The article presents the concept of how to use convolutional networks as a method for processing digital images acquired in visible region light needs smoke detection large open area. meaning and consequences massive blaze were underlined on basis statistical data concerning forest fires. proposal overcome difficulties using traditional methods fire threat by image techniques was discussed. idea, inner structure properties neural network tool automatic feature generation recognition...

The objective of this article was to determine, in practice, whether the break time tw safety fuses can impact security level provided by electronic systems (ESSs) that utilize aforementioned elements as their components. This purpose conducted destructive testing aimed at estimating times for a certain random number glass tube, miniature 5 × 20 (mm) fuse links with rapid operating characteristics, without quenching medium and rated overcurrent intensity 0.5 (A) selected manufacturers. For...

Abstract The article is devoted to the illustration of relationship operation system state assessment in reliability and economic aspect on a type information object intended for implementation an operational task, this object, task properties (i.e. required effect size time its manufacture), nature relationships between producer recipient effect. proposed model system, as well process models typical situations make it possible find conclusions criterion usability system.