Research on the Applicability of Vibration Signals for Real-Time Train and Track Condition Monitoring

Celiński, I.; Burdzik, Rafał; Młyńczak, Jakub; Kłaczyński, Maciej

doi:10.3390/s22062368

Cited by 17 publications

(7 citation statements)

References 46 publications

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“…Information on the technical states of the aforementioned systems (alarm, monitoring, or failure) is sent to the ARC (all states), while the SFB only receives information on the alarm state. In the case of the presented solution (Figure 4), if a CPG fails, the process of controlling and triggering the entire procedure may be individually undertaken by the FAS FCP [1,117,118]. For this purpose, the FCP has been equipped with an extinguishing control module that is able to implement all the functionalities of a CPG.…”

Section: The Application Of Fire Alarm and Gas Extinguishing Systems ...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

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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.

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Section: The Application Of Fire Alarm and Gas Extinguishing Systems ...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

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“…With the continuous development of embedded technology, embedded sensor nodes are widely used in vibration monitoring. It has been applied in equipment health monitoring [1], building structure monitoring [2], railway track monitoring [3], and earthquake monitoring [4]. Especially in bridge monitoring [5], many sensor nodes collect and record parameters such as acceleration, strain, temperature, humidity, inclination angle, and precise positioning information of the bridge, then send them back to assess the health status of the bridge and ensure the safety of road traffic.…”

Section: Introductionmentioning

confidence: 99%

Solar-powered vibration sensing based on TENG

Zhu,

Wu,

Zheng

et al. 2024

J. Phys.: Conf. Ser.

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In recent years, the triboelectric nanogenerator (TENG) has become an emerging sensing element with simple fabrication and low-cost advantages. The contact separation design of the TENG dual plates has a natural oscillator structure, which responds well to mechanical vibration. The voltage value changes generated by the TENG during vibration can serve as a signal source for sensing. In this paper, a new type of vibration sensing system is designed based on TENG, which uses the capacitor’s voltage from TENG to characterize the relative vibration intensity. It can realize the functions of vibration exceeding threshold alarm, real-time data transmission, LabVIEW terminal display, and data saving. At the same time, the solar energy is combined with the battery to realize the all-weather self-power supply of the vibration sensing system. This terminal will have a wide range of applications in vibration scenarios and hopefully promote embedded technology development.

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“…In the numerical simulation [78,79], the conditions are simulated to obtain a relevant result. However, to assess risks, it is necessary to employ analytical methods, using timespace dependencies [80][81][82][83] to model the processes both within elements of the structure and in the track structure as a whole.…”

Section: Introductionmentioning

confidence: 99%

Using Detailing Concept to Assess Railway Functional Safety

Bondarenko¹,

Campisi

Tesoriere

et al. 2022

Sustainability

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The ability to assess the risks of the functional safety of railway tracks allows harmonizing characteristics of track elements under certain operating conditions under certain maintenance for the efficient use of the track structure throughout its life cycle. The concept of detailing conditions of the interaction of the rolling stock and railway track was used for the productive solution of tasks of infrastructure functional safety assessment. The paper formed an approach to the analytical solution of determination problems of deformability parameters over time using the elastic waves theory. The formation method of interconnections between the technical and economic aspects of the operation of railway infrastructure was proposed. The criteria of deformability work and intensity of use were utilized for the effective use of the track structure through its life cycle. The results of calculations are presented to assess changes in the deformability behaviour of the track elements and structure when the force and speed parameters of the operating conditions change, as well as the algorithm of the method for estimating the operation deformability of the railway track. Thus, the proposed approach can be adapted to optimize objects by railway functional safety assessment at the stage of object operation simulation.

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Research on the Applicability of Vibration Signals for Real-Time Train and Track Condition Monitoring

Cited by 17 publications

References 46 publications

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

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

Solar-powered vibration sensing based on TENG

Using Detailing Concept to Assess Railway Functional Safety

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