Workplace injuries are common in today's society due to a lack of adequately worn safety equipment. A system that only admits appropriately equipped personnel can be created to improve working conditions and worker safety. The goal is thus to develop a system that will improve construction workers' safety. Building such a system necessitates computer vision, which entails object recognition, facial recognition, and human recognition, among other things. The basic idea is first to detect the human and remove the background to speed up the process and avoid potential interferences. After that, the cropped image is subjected to facial and object recognition. The code is written in Python and includes libraries such as OpenCV, face_recognition, and CVZone. Some of the different algorithms chosen were YOLOv4 and Histogram of Oriented Gradients. The results were measured at three respectively five-meter distances. As a result of the system’s pipeline, algorithms, and software, a mean average precision of 99% and 89% was achieved at the respective distances. At three and five meters, the model achieved a precision rate of 100%. The recall rates were 96% - 100% at 3m and 54% - 100% at 5m. Finally, the fps was measured at 1.2 on a system without GPU. / Skador på arbetsplatsen är vanliga i dagens samhälle på grund av att skyddsutrustning inte används eller används felaktigt. Målet är därför att bygga ett robust system som ska förbättra säkerhet. Ett system som endast ger tillträde till personal med rätt skyddsutrustning kan skapas för att förbättra arbetsförhållandena och arbetarsäkerheten. Att bygga ett sådant system kräver datorseende, vilket bland annat innebär objektigenkänning, ansiktsigenkänning och mänsklig igenkänning. Grundidén är att först upptäcka människan och ta bort bakgrunden för att göra processen mer effektiv och undvika potentiella störningar. Därefter appliceras ansikts- och objektigenkänning på den beskurna bilden. Koden är skriven i Python och inkluderar bland annat bibliotek som: OpenCV, face_recognition och CVZone. Några av de algoritmer som valdes var YOLOv4 och Histogram of Oriented Gradients. Resultatet mättes på tre, respektive fem meters avstånd. Systemets pipeline, algoritmer och mjukvara gav en medelprecision för alla klasser på 99%, och 89% för respektive avstånd. För tre och fem meters avstånd uppnådde modellen en precision på 100%. Recall uppnådde värden mellan 96% - 100% vid 3 meters avstånd och 54% - 100% vid 5 meters avstånd. Avslutningsvis uppmättes antalet bilder per sekund till 1,2 på ett system utan GPU.

The purpose of this diploma thesis is to analyze and compare statistics of work accidents, to find shortcomings and to suggest possible solutions to these shortcomings for the Czech Republic. The analysis and comparison of statistics is focused on the Czech Republic and neighboring countries, which are Slovakia, Poland, Germany and Austria in 2015-2020. Furthermore, the thesis focuses on the activities of labor inspection. There is also an analysis and comparison of activities in the Czech, Slovak, Polish and Austrian Republics in 2015-2020.

Introduktion: Nästan 6,5 miljoner människor har mist sina liv i Covid-19. Barnmorskan har stöd i lagen att ha en säker arbetsplats och ska inte bli smittad av Covid-19 på arbetsplatsen. Patienten har stöd i lagen och ska inte bli smittad av Covid-19 på sjukhuset. Barnmorskan ska ge patienten en säker vård och arbetsgivaren har en skyldighet att verktyg finns till detta. Syfte: Syftet var att beskriva hur barnmorskor upplevde smittskyddssäkerheten för sig och sina patienter på förlossningar under Covid-19 pandemin i Sverige. Metod: Intervjustudie med 6 barnmorskor på förlossningar. Innehållsanalys med manifesttolkning. Resultat: Barnmorskor har upplevt att de varit oskyddade på sin arbetsplats för de har inte haft en säker skyddsutrustning eller tillgång till en säker skyddsutrustning. De har inte upplevt att munskydd och visir kommer att skydda dem mot Covid-19. Barnmorskor har inte upplevt att patienterna varit skyddade då det inte funnits en säker skyddsutrustning, man har inte testat alla, friska och sjuka patienter har inte separerats. Barnmorskor har inte upplevt stöd från chefer för att kunnage en säker vård. Brister i smittskyddssäkerheten har skapat etiska dilemman där barnmorskor varit rädda för att bli smittade eller för att smitta patienterna. De har tvivlat gällande sitt yrkesval då deras hälsa riskeras. Slutsats: Barnmorskor måste få tillgång till en säker skyddsutrustning. Barnmorskor måste få tillgång till verktyg såsom, testning, kohortvård, separera friska och sjuka patienter så att de kan ge patienterna en säker vård. Staten måste bidra till organisationers och samhällets health literacy. Chefer måste stötta barnmorskor att bedriva en säker vård. / Introduction: Almost 6.5 million people have lost their lives to COVID-19. The midwife has support in the law to have a safe workplace and must not be infected by COVID-19 in the workplace. The patient has support in the law and should not be infected by COVID-19 when they need care in the hospital. The midwife must provide the patient with safe care and the employer has an obligation to provide the midwife with tools for this. Aim: The aim was to describe how midwives experienced the safety of infection control for themselves and for their patients during deliveries during the COVID-19 pandemic in Sweden. Methods: Interview study with 6 midwives at births. Content analysis with manifest interpretation. Results: Midwives have experienced that they were unprotected in their workplace because they did nothave safe protective equipment. They have not experienced that mouth guards and visors will protect them against COVID-19. Midwives did not feel that the patients were protected as there was no safe protective equipment, everyone was not tested, healthy and sick patients were not separated. Midwives have not experienced support from managers to be able to provide safecare. Shortcomings in infection prevention safety have created ethical dilemmas where midwives have been afraid of becoming infected or of infecting the patients. They have doubts about their choice of profession as their health is at risk. Conclusion: Midwives must have access to safe protective equipment and a safe workplace. Midwives must have access to tools such as, testing, cohort care, separating healthy and sick patients so they can provide patients with safe care. The state must contribute to the health literacy of organizations and society. Managers must support midwives to provide safe care.

This master’s thesis focus on the analysis of work conditions and risk assessment for specific company and specific project. It brings better condition to current action in health and safety area during all working activities. Emphasis is placed on safety of work and health protection of workers. The work provides information about theory of security work explores its practical application in the organization and gives a view into risk assess and risk management.

The content of the thesis is the implementation of the three-story brick office building with an operation in Hodonin. Text section contains the technical report on the structural and technological project technical report transport relations, study implementation of major technological stages of building SO 01, project construction site, the design of the main building machines and mechanisms, technological regulation, inspection and test plan and a plan of safety and health at work for making the 1st floor ceiling structure. The appendix section includes drawings and installations situation Minor main building structure, calculation of stripping reinforced concrete structures, timing and technology standard of the main building structure and time and financial plan construction-object.