5th EAI International Conference on Management of Manufacturing Systems, 2021
One of the characteristics of the modern world is the rapid growth of the human population. This ... more One of the characteristics of the modern world is the rapid growth of the human population. This population growth is strongly connected with the growth of urban communities. As a result, the world is facing a problem with the increase in air and noise pollution mainly in cities, which is largely caused by road traffic. Numerous discussions are currently underway to define optimal routes for the special conditions of important traffic corridors in the Republic of Serbia. In particular, discussing the problems of their position in the vicinity of urban areas, hospitals, kindergartens, schools, cultural monuments, etc. The rapid development of wireless technologies facilitates the development and implementation of IoT (Internet of Things) systems in Smart cities. A model of IoT system designed for monitoring the noise in the cities caused by the traffic is presented in this paper. The collected data are used for routing the traffic to reduce noise in sensitive parts of the city. The system used LoRaWAN, one of the most applied Low-Power Wide Area Network (LP-WAN) technologies. The system architecture is based on micro-services and MQTT protocol. Besides the system model, the variations of the Dijkstra shortest path algorithm are used to calculate alternative routes for navigating vehicles. The system model is presented by the widely accepted IoT-layered system architecture.
Noise and air pollution are among the most important problems and challenges in urban environment... more Noise and air pollution are among the most important problems and challenges in urban environments. Noise can cause several problems in functioning within urban settlements and may result in a variety of health problems. Continuous monitoring, prevention, and active work on solving these problems are in the focus of research communities, local and national agencies and organizations, and many international organizations. Traffic noise on city roads has been identified as one of the major problems in urban settlements. Fortunately, it can be monitored and controlled in a way that can reduce its level and negative effects. One of the most effective and cheapest ways to monitor and control traffic noise is to use wireless sensor networks, IoT technology, and cloud-based architectures. This article presents an approach in designing urban traffic noise monitoring system based on LoRaWAN and microservices oriented architecture supported with open-source hardware and software solutions. Design of the system includes planning LoRaWAN network and development of the IoT system layered architecture. Methods for traffic routing and rerouting in urban areas, based on experiments that uses Dijkstra and Floyd–Warshall algorithms are presented. The system implementation and evaluation of the proposed routing modifications are presented in the case of the city of Zrenjanin in Serbia. Discussion of extensions and improvements of the presented system, as well as future research directions, are also presented.
The paper proposes a Hybrid Electric Vehicle (HEV) design based on the installation of a fuel cel... more The paper proposes a Hybrid Electric Vehicle (HEV) design based on the installation of a fuel cell (FC) module in the existing Daewoo Tico electric vehicle to increase its range in urban areas. Installing an FC module supplied by a 2 kg hydrogen tank would not significantly increase the mass of the electric vehicle, and the charging time of the hydrogen tank is lower than the battery charging time. For design analysis, a model was created in the MATLAB/Simulink software package. The model simulates vehicle range at different HEV speeds for Absorbent Glass Mat (AGM) and Proton Exchange Membrane Fuel Cell (PEMFC) power sources. The greatest anticipated benefit derived from the model analysis relates to velocities ranging from 20 km/h to 30 km/h, although the optimal HEV velocity in an urban area is in the range of 30 km/h to 40 km/h. The results indicate that this conversion of Electric Vehicle (EV) to HEV would bring a benefit of 87.4% in terms of vehicle range in urban areas. Theref...
Croatian Journal of Education-Hrvatski Casopis za Odgoj i obrazovanje, 2017
Information technology has lately become an integral part of the educational system. Application ... more Information technology has lately become an integral part of the educational system. Application of modern digital technologies in teaching has changed teaching methods. This research is based on forming a teaching model in order to improve the level of ICT knowledge and skills of students applicable in the area of technical sciences. The objective of this research is to establish a methodology to improve and adapt curricula with the goal of enhancing digital competences of learners according to European standards and the needs of teaching at technical faculties. Key words: Computer Education Software (CES); digital competence; modular teaching system; programmed teaching. --- Sažetak Informacijske su tehnologije u posljednje vrijeme postale sastavni dio obrazovnog sustava. Primjena suvremenih digitalnih tehnologija u nastavi utjecala je na promjenu metoda poucavanja. Ovo se istraživanje temelji na oblikkovanju modela poucavanja sa svrhom poboljsanja razine studentskih IKT znanja i...
5th EAI International Conference on Management of Manufacturing Systems, 2021
One of the characteristics of the modern world is the rapid growth of the human population. This ... more One of the characteristics of the modern world is the rapid growth of the human population. This population growth is strongly connected with the growth of urban communities. As a result, the world is facing a problem with the increase in air and noise pollution mainly in cities, which is largely caused by road traffic. Numerous discussions are currently underway to define optimal routes for the special conditions of important traffic corridors in the Republic of Serbia. In particular, discussing the problems of their position in the vicinity of urban areas, hospitals, kindergartens, schools, cultural monuments, etc. The rapid development of wireless technologies facilitates the development and implementation of IoT (Internet of Things) systems in Smart cities. A model of IoT system designed for monitoring the noise in the cities caused by the traffic is presented in this paper. The collected data are used for routing the traffic to reduce noise in sensitive parts of the city. The s...
The calculation of critical points of special consignments during transport in most cases is coun... more The calculation of critical points of special consignments during transport in most cases is counted manually. Usually it is a job that requires several hours, in some cases even days of work. In order to simplify and shorten this long-and long-term work, the software solution "Calculate critical points" is proposed for the calculation of the critical points of the shipments.
2021 20th International Symposium INFOTEH-JAHORINA (INFOTEH), 2021
The model introduced in the paper deals with the assessment of the working capacity of employees ... more The model introduced in the paper deals with the assessment of the working capacity of employees by iris recognition, and pupil recognition. Employers gravitate to ensure that workers who come to work have maximum efficiency at work. Eye detection model for assessing the working capacities of employees has that goal. The CNN (Convolutional Neural Networks) recognize the eye on the employee’s face and selects the best image for further processing. The image selected by CNN is further processed using the Hough transformation. The post-process involves the application of Canny edge detection and segmentation to find a circle representing the iris. Using the iris recognition algorithm, we determine deviant states and assess the working ability of the employee. The model was tested on a predetermined dataset and the test results are about 90% accurate.
Cyber-physical systems based on heterogeneous and distributed devices, applications and services ... more Cyber-physical systems based on heterogeneous and distributed devices, applications and services are the core of smart factories. Smart manufacturing systems are highly dependent on software applications and services that enable integration of data from different and heterogeneous sources, as well as support for control and management processes. Development and implementation of specific architecture styles and patterns in smart industrial settings is essential for their performance. Several software architecture styles used in Industry 4.0 environments are discussed and illustrated with examples from literature. Our experience with a prototype of a smart sensor-based layered architecture is presented and discussed. Further work will be directed towards development of service oriented architectures and reengineering method for old fashioned industrial settings.
Main task of the research is to examine the level of IT knowledge and skills in the student popul... more Main task of the research is to examine the level of IT knowledge and skills in the student population of the Faculty of Transport and Traffic Engineering in order to improve IT competencies of students of this profile. The principal aim is to develop a methodology for the advancement and harmonisation of curricula and the improvement of teacher IT competencies in compliance with European standards and the needs of transport and traffic engineering faculties. Additionally, the aim is to implement such a methodology, i.e. to modernise the IT teaching process by using new teaching tools and on-line tests to assess students' knowledge and skills in order to improve their informatics competencies.
Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 2021
Unmanned Aerial Vehicles (UAVs), or drones, are used in the field of remote collection of images ... more Unmanned Aerial Vehicles (UAVs), or drones, are used in the field of remote collection of images at the time of flight. They can also detect irregularities in vehicle parking and issue fines in case of parking violations. The parking monitoring system uses real-time visual information. In this paper, the proposed solution is for real-time monitoring of areas and detecting irregularities in-vehicle parking using a fleet of drones. In this study, a camera mounted on UAVs applies for taking pictures of public areas at predetermined points. For monitoring of area will be used Observer UAVs while for detection will be used, Inspector UAVs. Visual information collected with UAVs is used to detect irregularities in vehicle parking, while the processing of collected data is performed by an artificial neural network.
The growing application of smart manufacturing systems and the expansion of the Industry 4.0 mode... more The growing application of smart manufacturing systems and the expansion of the Industry 4.0 model have created a need for new teaching platforms for education, rapid application development, and testing. This research addresses this need with a proposal for a model of working environment monitoring in smart manufacturing, based on emerging wireless sensor technologies and the message queuing telemetry transport (MQTT) protocol. In accordance with the proposed model, a testing platform was developed. The testing platform was built on open-source hardware and software components. The testing platform was used for the validation of the model within the presented experimental environment. The results showed that the proposed model could be developed by mainly using open-source components, which can then be used to simulate different scenarios, applications, and target systems. Furthermore, the presented stable and functional platform proved to be applicable in the process of rapid prot...
5th EAI International Conference on Management of Manufacturing Systems, 2021
One of the characteristics of the modern world is the rapid growth of the human population. This ... more One of the characteristics of the modern world is the rapid growth of the human population. This population growth is strongly connected with the growth of urban communities. As a result, the world is facing a problem with the increase in air and noise pollution mainly in cities, which is largely caused by road traffic. Numerous discussions are currently underway to define optimal routes for the special conditions of important traffic corridors in the Republic of Serbia. In particular, discussing the problems of their position in the vicinity of urban areas, hospitals, kindergartens, schools, cultural monuments, etc. The rapid development of wireless technologies facilitates the development and implementation of IoT (Internet of Things) systems in Smart cities. A model of IoT system designed for monitoring the noise in the cities caused by the traffic is presented in this paper. The collected data are used for routing the traffic to reduce noise in sensitive parts of the city. The system used LoRaWAN, one of the most applied Low-Power Wide Area Network (LP-WAN) technologies. The system architecture is based on micro-services and MQTT protocol. Besides the system model, the variations of the Dijkstra shortest path algorithm are used to calculate alternative routes for navigating vehicles. The system model is presented by the widely accepted IoT-layered system architecture.
Noise and air pollution are among the most important problems and challenges in urban environment... more Noise and air pollution are among the most important problems and challenges in urban environments. Noise can cause several problems in functioning within urban settlements and may result in a variety of health problems. Continuous monitoring, prevention, and active work on solving these problems are in the focus of research communities, local and national agencies and organizations, and many international organizations. Traffic noise on city roads has been identified as one of the major problems in urban settlements. Fortunately, it can be monitored and controlled in a way that can reduce its level and negative effects. One of the most effective and cheapest ways to monitor and control traffic noise is to use wireless sensor networks, IoT technology, and cloud-based architectures. This article presents an approach in designing urban traffic noise monitoring system based on LoRaWAN and microservices oriented architecture supported with open-source hardware and software solutions. Design of the system includes planning LoRaWAN network and development of the IoT system layered architecture. Methods for traffic routing and rerouting in urban areas, based on experiments that uses Dijkstra and Floyd–Warshall algorithms are presented. The system implementation and evaluation of the proposed routing modifications are presented in the case of the city of Zrenjanin in Serbia. Discussion of extensions and improvements of the presented system, as well as future research directions, are also presented.
The paper proposes a Hybrid Electric Vehicle (HEV) design based on the installation of a fuel cel... more The paper proposes a Hybrid Electric Vehicle (HEV) design based on the installation of a fuel cell (FC) module in the existing Daewoo Tico electric vehicle to increase its range in urban areas. Installing an FC module supplied by a 2 kg hydrogen tank would not significantly increase the mass of the electric vehicle, and the charging time of the hydrogen tank is lower than the battery charging time. For design analysis, a model was created in the MATLAB/Simulink software package. The model simulates vehicle range at different HEV speeds for Absorbent Glass Mat (AGM) and Proton Exchange Membrane Fuel Cell (PEMFC) power sources. The greatest anticipated benefit derived from the model analysis relates to velocities ranging from 20 km/h to 30 km/h, although the optimal HEV velocity in an urban area is in the range of 30 km/h to 40 km/h. The results indicate that this conversion of Electric Vehicle (EV) to HEV would bring a benefit of 87.4% in terms of vehicle range in urban areas. Theref...
Croatian Journal of Education-Hrvatski Casopis za Odgoj i obrazovanje, 2017
Information technology has lately become an integral part of the educational system. Application ... more Information technology has lately become an integral part of the educational system. Application of modern digital technologies in teaching has changed teaching methods. This research is based on forming a teaching model in order to improve the level of ICT knowledge and skills of students applicable in the area of technical sciences. The objective of this research is to establish a methodology to improve and adapt curricula with the goal of enhancing digital competences of learners according to European standards and the needs of teaching at technical faculties. Key words: Computer Education Software (CES); digital competence; modular teaching system; programmed teaching. --- Sažetak Informacijske su tehnologije u posljednje vrijeme postale sastavni dio obrazovnog sustava. Primjena suvremenih digitalnih tehnologija u nastavi utjecala je na promjenu metoda poucavanja. Ovo se istraživanje temelji na oblikkovanju modela poucavanja sa svrhom poboljsanja razine studentskih IKT znanja i...
5th EAI International Conference on Management of Manufacturing Systems, 2021
One of the characteristics of the modern world is the rapid growth of the human population. This ... more One of the characteristics of the modern world is the rapid growth of the human population. This population growth is strongly connected with the growth of urban communities. As a result, the world is facing a problem with the increase in air and noise pollution mainly in cities, which is largely caused by road traffic. Numerous discussions are currently underway to define optimal routes for the special conditions of important traffic corridors in the Republic of Serbia. In particular, discussing the problems of their position in the vicinity of urban areas, hospitals, kindergartens, schools, cultural monuments, etc. The rapid development of wireless technologies facilitates the development and implementation of IoT (Internet of Things) systems in Smart cities. A model of IoT system designed for monitoring the noise in the cities caused by the traffic is presented in this paper. The collected data are used for routing the traffic to reduce noise in sensitive parts of the city. The s...
The calculation of critical points of special consignments during transport in most cases is coun... more The calculation of critical points of special consignments during transport in most cases is counted manually. Usually it is a job that requires several hours, in some cases even days of work. In order to simplify and shorten this long-and long-term work, the software solution "Calculate critical points" is proposed for the calculation of the critical points of the shipments.
2021 20th International Symposium INFOTEH-JAHORINA (INFOTEH), 2021
The model introduced in the paper deals with the assessment of the working capacity of employees ... more The model introduced in the paper deals with the assessment of the working capacity of employees by iris recognition, and pupil recognition. Employers gravitate to ensure that workers who come to work have maximum efficiency at work. Eye detection model for assessing the working capacities of employees has that goal. The CNN (Convolutional Neural Networks) recognize the eye on the employee’s face and selects the best image for further processing. The image selected by CNN is further processed using the Hough transformation. The post-process involves the application of Canny edge detection and segmentation to find a circle representing the iris. Using the iris recognition algorithm, we determine deviant states and assess the working ability of the employee. The model was tested on a predetermined dataset and the test results are about 90% accurate.
Cyber-physical systems based on heterogeneous and distributed devices, applications and services ... more Cyber-physical systems based on heterogeneous and distributed devices, applications and services are the core of smart factories. Smart manufacturing systems are highly dependent on software applications and services that enable integration of data from different and heterogeneous sources, as well as support for control and management processes. Development and implementation of specific architecture styles and patterns in smart industrial settings is essential for their performance. Several software architecture styles used in Industry 4.0 environments are discussed and illustrated with examples from literature. Our experience with a prototype of a smart sensor-based layered architecture is presented and discussed. Further work will be directed towards development of service oriented architectures and reengineering method for old fashioned industrial settings.
Main task of the research is to examine the level of IT knowledge and skills in the student popul... more Main task of the research is to examine the level of IT knowledge and skills in the student population of the Faculty of Transport and Traffic Engineering in order to improve IT competencies of students of this profile. The principal aim is to develop a methodology for the advancement and harmonisation of curricula and the improvement of teacher IT competencies in compliance with European standards and the needs of transport and traffic engineering faculties. Additionally, the aim is to implement such a methodology, i.e. to modernise the IT teaching process by using new teaching tools and on-line tests to assess students' knowledge and skills in order to improve their informatics competencies.
Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 2021
Unmanned Aerial Vehicles (UAVs), or drones, are used in the field of remote collection of images ... more Unmanned Aerial Vehicles (UAVs), or drones, are used in the field of remote collection of images at the time of flight. They can also detect irregularities in vehicle parking and issue fines in case of parking violations. The parking monitoring system uses real-time visual information. In this paper, the proposed solution is for real-time monitoring of areas and detecting irregularities in-vehicle parking using a fleet of drones. In this study, a camera mounted on UAVs applies for taking pictures of public areas at predetermined points. For monitoring of area will be used Observer UAVs while for detection will be used, Inspector UAVs. Visual information collected with UAVs is used to detect irregularities in vehicle parking, while the processing of collected data is performed by an artificial neural network.
The growing application of smart manufacturing systems and the expansion of the Industry 4.0 mode... more The growing application of smart manufacturing systems and the expansion of the Industry 4.0 model have created a need for new teaching platforms for education, rapid application development, and testing. This research addresses this need with a proposal for a model of working environment monitoring in smart manufacturing, based on emerging wireless sensor technologies and the message queuing telemetry transport (MQTT) protocol. In accordance with the proposed model, a testing platform was developed. The testing platform was built on open-source hardware and software components. The testing platform was used for the validation of the model within the presented experimental environment. The results showed that the proposed model could be developed by mainly using open-source components, which can then be used to simulate different scenarios, applications, and target systems. Furthermore, the presented stable and functional platform proved to be applicable in the process of rapid prot...
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Papers by Goran Jausevac