Jerzy Mikulik

Automatic Risk Control Based on FSA Methodology Adaptation for Safety Assessment in Intelligent Buildings

Automatic Risk Control Based on FSA Methodology Adaptation for Safety Assessment in Intelligent Buildings The main area which Formal Safety Assessment (FSA) methodology was created for is maritime safety. Its model presents quantitative risk estimation and takes detailed information about accident characteristics into account. Nowadays, it is broadly used in shipping navigation around the world. It has already been shown that FSA can be widely used for the assessment of pilotage safety. On the basis of analysis and conclusion on the FSA approach, this paper attempts to show that the adaptation of this method to another area—risk evaluating in operating conditions of buildings—is possible and effective. It aims at building a mathematical model based on fuzzy logic risk assessment with different habitat factors included. The adopted approach lets us describe various situations and conditions that occur in creating and exploiting of buildings, allowing for automatic control of the risk connected to them.

Investigating Theoretical PV Energy Generation Patterns with Their Relation to the Power Load Curve in Poland

Polish energy sector is (almost from its origin) dominated by fossil fuel feed power. This situation results from an abundance of relatively cheap coal (hard and lignite). Brown coal due to its nature is the cheapest energy source in Poland. However, hard coal which fuels 60% of polish power plants is picking up on prices and is susceptible to the coal imported from neighboring countries. Forced by the European Union (EU) regulations, Poland is struggling at achieving its goal of reaching 15% of energy consumption from renewable energy sources (RES) by 2020. Over the year 2015, RES covered 11.3% of gross energy consumption but this generation was dominated by solid biomass (over 80%). The aim of this paper was to answer the following research questions: What is the relation of irradiation values to the power load on a yearly and daily basis? and how should photovoltaics (PV) be integrated in the polish power system? Conducted analysis allowed us to state that there exists a negative correlation between power demand and irradiation values on a yearly basis, but this is likely to change in the future. Secondly, on average, daily values of irradiation tend to follow power load curve over the first hours of the day.

Intelligent building reengineering: adjusting life and work environment to occupant's optimal routine processes

Intelligent building should be occupant oriented. It means that the occupants point of view regarding safety and comfort should be taken into account, at least at the designing phase. The occupants point of view relates to his needs. The level of fulfilling those needs influences the occupants satisfaction. The occupants needs and satisfaction relate to a human being. One of the essential features of a human being is using his senses to perceiving the world and feeling satisfaction. It means that human senses are an important issue regarding intelligent building. Therefore, human senses should be taken into account, at least from the designing phase. An occupant of a building realizes different processes. Many of them are routine (repeated) processes. For instance, the nourishment process might be one of the routine processes at home. The research carried out, and presented in this article, showed that among many process mapping approaches for intelligent building none used the sensorium assessment. This article is an attempt to fulfil this gap. Reengineering concept has been used as a starting point. Integration Definition method for Process Description Capture (IDEF3) was adopted – with necessary changes – to map and model processes together with senses perception.

Optimal assignment of workers to supporting services in a hospital

Optimal assignment of workers to supporting services in a hospital Supporting services play an important role in health care institutions such as hospitals. This paper presents an application of operations research model for optimal allocation of workers among supporting services in a public hospital. The services include logistics, inventory management, financial management, operations management, medical analysis, etc. The optimality criterion of the problem is to minimize operations costs of supporting services subject to some specific constraints. The constraints represent specific conditions for resource allocation in a hospital. The overall problem is formulated as an integer program in the literature known as the assignment problem, where the decision variables represent the assignment of people to various jobs. The results of some computational experiments modeled on a real data from a selected Polish hospital are reported.

Day ahead electric power load forecasting by WT-ANN

This paper presents a method for forecasting energy demand based on WT-ANN (Wavelet Transform - Artificial Neural Network). Model has been developed and assessed for system data for the period 2002-2014. As input variables following have been considered: five levels of signal decomposition (t-1, t-2), values of time series (t-1, t-2) and qualitative variables denoting day of the week. Streszczenie. W artykule przedstawiono metode prognozowania zapotrzebowania na moc elektryczną w oparciu o model hybyrdowy WT-ANN (Wavelet Transform - Artificial Neural Network). Budowe oraz ocene jakoś prognoz modelu przeprowadzono dla danych systemowych za okres 2002-2014. Jako dane wejściowe uwzgledniono: piec poziomow dekompozycji sygnalu, wartości szeregu czasowego (t-1, t-2) oraz zmienne jakościowe określające dzien tygodnia. (Prognozowania obciązenia sieci elektroenergetycznej na kolejny dzien w oparciu o model WT-ANN)

A Simulation Model for Emergency Evacuation Time and Low-Cost Improvements of a Hospital Facility Using FlexSim Healthcare: A Case Study

Proper preparation for emergency situation like: terrorist threat, flood, fire, etc., in hospital facilities, where people entrust their safeness in hands of medical and nonmedical personnel is important issue. In this paper we present the simulation model of emergency evacuation from the facility of The Voivodship Centre of Addiction Therapy in Krakow, a part of Dr Jozef Babinski Hospital in Krakow (Poland). We used FlexSim Healthcare 3D Simulation Software to find answers for following questions: how much time the evacuation will take, depending on different time frames during the day (we call them scenarios), and what kind of low-cost improvements can be made to shorten evacuation time. The use of low-cost improvements resulted in a nearly 50% reduction of the total evacuation time in each of the five analyzed scenarios. We presented in this paper the aim of the simulation model, methodology, course of research, results, and conclusions.

A strategy for the photovoltaic-powered pumped storage hydroelectricity

Pumped storage hydroelectricity is the most natural and almost the only bulk energy storage technology available today. Due to the variability of energy demand, and recently also of the supply side of the energy market, there is a need to compensate these differences. In market reality this is usually done on the so-called balancing market where energy prices are significantly higher than on the power exchange market. In this paper we introduce a mathematical model for simulating the operation of photovoltaic-powered pumped storage hydroelectricity along with an optimization model and a procedure for operation on the balancing market. A simulation was performed based on data covering the year 2015 with an hourly time step. The results from the proposed approach were juxtaposed with an optimal solution generated from the optimization model.

A method for static CCTV image analysis to improve biometric security systems

In this paper, a concept of an access-control system based on mantrap and an analysis of static images from surveillance cameras is introduced. The results of this concept have been obtained by the analysis of images from surveillance cameras or digital cameras. These devises are not elements of mantraps. The motivation of this study is the importance of the ability to detect such events in a protected area. The method can be used as a supplement to a system of biometric identification of persons. The paper presents the structure of a threat detection system and subsequent operations on recorded images made by an application specially developed for this purpose. The paper discusses methods of collecting and recording data as well as methods of contextual and non-contextual processing of images that have a decisive impact on the final form of the material used for comparison with a database.