Security is a very important part of today’s society.Verisure is the leader in home alarm systems with 30 years ofexperience. In this project, we aim to evaluate how secure theiralarm system is from a software perspective. The system wasbought in January 2020. After an initial threat modeling, followedby penetration testing it turns out that the alarm system is not assecure as Verisure markets. We could find several security flawsin the system. Some of them let an attacker block the system,and others yield full control without the user’s knowledge. Thereare also a couple of vulnerabilities that could be exploited bypeople without any special knowledge regarding hacking or thesystem in general. / Säkerhet är en mycket viktig del i dagens samhälle. Verisure är ledande inom hemmalarmsystem med 30 års erfarenhet. I det här projektet utvärderar vi hur säkert deras larmsystem är från ett mjukvaruperspektiv. Systemet köptes i januari 2020. Efter en inledande hotmodellering och följande penetrationstester visar det sig att larmsystemet inte är lika säkert som Verisure marknadsför. Vi kunde under projektets gång hitta flera säkerhetsbrister i systemet. Några av dessa gör att en angripare kan blockera systemet och andra ger full kontroll utan användarnas vetskap. Det finns också ett par sårbarheter som kan utnyttjas av människor utan någon speciell kunskap om hacking eller systemet i allmänhet. / Kandidatexjobb i elektroteknik 2020, KTH, Stockholm

This final thesis deals coucerned with design of heating in the children´s home. The object has basement and three floors. The objectis heated by means of panel and tubular heaters. The heat source (ga condensing boiler) is located in a technical room.

It is commonly agreed among energy experts that smart meters (SMs) are the key component that will facilitate the transition towards the smart grid. Fast-peace innovations in the smart metering infrastructure (AMI) are exposing countless benefits that network operators can obtain when they integrate SMs applications into their daily operations.  Following the amendment in 2017, where the Swedish government dictated that all SMs should now include new features such as remote control, higher time resolution for the energy readings and a friendly interface for customers to access their own data; network operators in Sweden are currently replacing their SMs for a new model, also called the second generation of SMs. While the replacement of meters is in progress, many utilities like Hemab are trying to reveal which technical and financial benefits the new generation of SMs will bring to their operations.    As a first step, this thesis presents the results of a series of interviews carried out with different network operators in Sweden. It is studied which functionalities have the potential to succeed in the near future, as well as those functionalities that are already being tested or fully implemeneted by some utilities in Sweden. Furthermore, this thesis analyses those obstacles and barriers that utilities encounter when trying to implement new applications using the new SMs. In a second stage, an alarm system for power interruptions and voltage-quality events (e.g., overvoltage and undervoltage) using VisionAir software and OMNIPOWER 3-phase meters is evaluated. The results from the evaluation are divided into three sections: a description of the settings and functionalities of the alarm, the outcomes from the test, and a final discussion of potential applications. This study has revealed that alarm functions, data analytics (including several methods such as load forecasting, customer segmentation and non-technical losses analysis), power quality monitoring, dynamic pricing, and load shedding have the biggest potential to succeed in Sweden in the coming years. Furthermore, it can be stated that the lack of time, prioritization of other projects in the grid and the integration of those new applications into the current system seem to be the main barrier for Swedish utilities nowadays. Regarding the alarm system, it was found that the real benefits for network operators arrive when the information coming from an alarm system is combined with a topology interface of the network and a customer notifications server. Both applications could improve customer satisfaction by significantly reducing outage time and providing customers with real-time and precise information about the problems in the grid.

The master’s thesis „Support for instruction in electric fire alarm system” describes principles and engineering solution of electric fire alarm system. It is background for activity task about EPS for students in VUT in Brno. It illustrates how to act on this task and configuration fire panel and components EPS with the support of software FSP 5000. The practice contains proposal EPS with support in fire system designer.

The content of this thesis is the complex security system proposal, specifically of PZTS system and CCTV system. The thesis is divided into three parts. The first part is analysis of the current state, the second is theoretical part and the third part is a practical part. The first part deals with the analysis of the current state of physical security and technical protection of the premises. The theoretical part deals with theoretical solutions for security system proposal. The practical part is focused on separate PZTS and CCTV systems proposal, that will meet all the requirements and standards of the customer.

This thesis deals with the design of the heating system in a Polyfunctional building. The design is solving heating of a Polyfunctional Object in Kostelec nad Ohří. The building has basement and two floors. The building is heated by means of panel, tubular and floor convector heaters. The source of the heat is located in the boiler room in the basement.

Arbetet på fartygsbryggor består till en stor del av kontrolluppgifter. Operatörerna, bryggteamet, har därför kontroll-  och alarmsystem till förfogande. Samspelet mellan människa och system beror delvis på användarens kunskaper och erfarenheter och delvis på bryggdesign och teknikens användarvänlighet. Arbetets ämne är hanteringen av alarm och alarmsystem på fartygsbryggor.  Syftet  var att  undersöka om det finns strategier för detta och i så fall att belysa hur dessa strategier ser ut. Därför undersöktes sju styrmäns erfarenheter med kvalitativa metoder, med halvstrukturerade intervjuer och med innehållsanalys.    Undersökningen ledde bl. a. till följande slutsatser: Alarmhanteringen sker i stort sätt enligt oskrivna regler och överenskommelser. Det ses som en del av yrket och sker vid sidan om.  Styrmännen följer ett handlingsschema när ett alarm påkallar uppmärksamhet. Styrmännen konstruerar sina egna verktyg och metoder för att komma tillrätta med ergonomiska problem och med felfunktioner. / Work on a navigational bridge consists to a great extent of control tasks. Control and alarm systems are available to facilitate this work. The interaction between humans and systems depends partly on the  user's knowledge and experience and partly on bridge design and technologies’ usability. The topic of this thesis is the handling of alarms and alarm systems on  navigational  bridges.  The aim was to  study  whether there are strategies for this and if so, to illustrate how these strategies work. For this reason seven officers’  experiences were examined with  qualitative methods, semi-structured interviews and content analysis. The investigation led among other things to the following conclusions:   Alarm handling is often done according to unwritten rules and agreements. It is seen as part of the profession and is done on the side. Officers follow a scheme when an alarm calls for their attention. Officers construct their own tools and methods to deal with ergonomic problems and malfunctions.