Luige Vladareanu - Academia.edu (original) (raw)
Papers by Luige Vladareanu
Proceedings of the 8th International Conference on Smart Cities and Green ICT Systems, 2019
The paper evidences research results on an innovative intelligent manufacturing process and its m... more The paper evidences research results on an innovative intelligent manufacturing process and its manufacturing system. The metallic construction, based on steel framing and, consequently, on Light Gauge Steel profiles, has got an increasing attention lately, due to their specific features that involve environmental friendly building technologies, process efficiency and, last but not the least, relatively low costs. A metallic construction has a steel framing structure, similar to that of wood, but is lighter and easier to build, not to mention that it is recyclable waste. It is based on LGS profiles, that are manufactured by cold plastic deformation process of relatively low carbon steel. In order to improve the profile's material mechanical characteristics, induction hardening process is introduced, distinctly, during the whole manufacturing process stages. Thus, it is estimated a reduction of material consumption, about 10 % and, consequently, a reduction of construction costs by 7%. a
Sensors
Advanced intelligent control (AIC) is a rapidly evolving and complex field that poses significant... more Advanced intelligent control (AIC) is a rapidly evolving and complex field that poses significant challenges [...]
2021 23rd International Conference on Control Systems and Computer Science (CSCS)
The paper presents two object detector networks on USC Pedestrian database in order to detect and... more The paper presents two object detector networks on USC Pedestrian database in order to detect and localize pedestrians in photos. The COCO metrics was used, because it was considered a very important problem, well addressed. All children in pictures were well localized and the models can be used on autonomous robots and cars. Both Faster R-CNN and SSD missed a single person in the testing C dataset. The research results lead to a precision of 0.733 on Faster R-CNN and 0.583 on SSD on COCO metrics. In future works this results will be used in augmenting data for search and rescue missions conducted by first responders.
Advances in Sustainability Science and Technology, 2021
Sensors, 2022
Interest in the synthesis and fabrication of gallium oxide (Ga2O3) nanostructures as wide bandgap... more Interest in the synthesis and fabrication of gallium oxide (Ga2O3) nanostructures as wide bandgap semiconductor-based ultraviolet (UV) photodetectors has recently increased due to their importance in cases of deep-UV photodetectors operating in high power/temperature conditions. Due to their unique properties, i.e., higher surface-to-volume ratio and quantum effects, these nanostructures can significantly enhance the sensitivity of detection. In this work, two Ga2O3 nanostructured films with different nanowire densities and sizes obtained by thermal oxidation of Ga on quartz, in the presence and absence of Ag catalyst, were investigated. The electrical properties influenced by the density of Ga2O3 nanowires (NWs) were analyzed to define the configuration of UV detection. The electrical measurements were performed on two different electric contacts and were located at distances of 1 and 3 mm. Factors affecting the detection performance of Ga2O3 NWs film, such as the distance between ...
SCIENTIFIC RESEARCH AND EDUCATION IN THE AIR FORCE, 2022
The safety levels of the flight have determined the operating standards of the UAS which are tran... more The safety levels of the flight have determined the operating standards of the UAS which are transposed into the operating capabilities and the high levels of reliability of the ground command and control systems / ground equipment. The ground control station (GCS) or C3 is a subsystem of the UAS that has its own command and control technologies in flight and communications with high speeds of data transfer over long distances. The ground control stations (GCS) of unmanned aerial vehicles allow a single operator to handle all flight-related tasks simultaneously with the acquisition of data from areas of interest. The article contains an overview of the construction stages of an experimental model of the portable ground station for the command and control of unmanned aerial vehicles on board.
2021 23rd International Conference on Control Systems and Computer Science (CSCS), 2021
The paper presents improved performance strategies of the Autonomous Mobile Robot Vectors (AMRV) ... more The paper presents improved performance strategies of the Autonomous Mobile Robot Vectors (AMRV) by New Intelligent Control Interfaces developed on an innovative CPS control system of terrestrial, aerial, and aquatic robots. The portable hardware system, with open architecture, allows the integration of other devices necessary for the communication and control of robotic vectors as well as the collection of sensory, video, and audio data for analysis and storage. The research results lead to the configuration for the AMRV's communication protocol with outstanding performance, reliable, intuitive use, integrated into an intelligent platform for the control of the missions specific to robot vectors.
2019 22nd International Conference on Control Systems and Computer Science (CSCS), 2019
The paper presents a VIPRO versatile, intelligent and mobile platform for real time robot control... more The paper presents a VIPRO versatile, intelligent and mobile platform for real time robot control, by applying an original virtual projection method which involves the representation of modern mobile robots in a 3D virtual environment using a strong robotic simulator, an open architecture system and adaptive networks over the classical control system of the robot, developing intelligent control interfaces that use advanced control technologies adapted to the robot environment such as extended control (Extenics), neutrosophic control, human adaptive mechatronics. The obtained results lead to application development on mobile robots in virtual and real environments, allowing a correct evaluation of force-position robot behaviors and high level real-time simulation in order to correctly model interactions among the robot and the motion environment.
Proceedings of the 8th International Conference on Smart Cities and Green ICT Systems, 2019
The article presents aspects of integrating Anthropomorphic Walking Robots (AWRs) into Smart Gree... more The article presents aspects of integrating Anthropomorphic Walking Robots (AWRs) into Smart Green city systems. Through the interaction of physical systems assisted by artificial intelligence, it is estimated that environmental pollution risks are reduced by manufacturing processes; improving the pace of citizens' lives by efficiently managing the travel time between different regions of the city; increasing the quality of social life, ensuring a greater degree of independence of the elderly or disabled people etc. In order to achieve the above mentioned, the paper highlights some aspects of research on detection, monitoring, control and navigation of AWRs, as well as elements of standardization of intelligent urban processes and actions.
Progress on Difference Equations and Discrete Dynamical Systems, 2020
IFAC-PapersOnLine, 2020
Abstract The paper presents the development of a digital twin for a high frequency hardening robo... more Abstract The paper presents the development of a digital twin for a high frequency hardening robot and connected hardware and software modules. The paper describes the virtual environment model, the robot emulation and optimization model, and the reference generation model, as well as their respective visual interfaces, used for controlling both the physical and digital robots. The application is integrated into the multi-purpose Virtual Intelligent Portable Robot Platform (VIPRO).
IOP Conference Series: Materials Science and Engineering, 2021
In the framework of planning and scheduling process for improving surface characteristics the las... more In the framework of planning and scheduling process for improving surface characteristics the laser cladding process is one of the best solutions, due to the fact that it involves deposition of high-quality material layers by laser radiation. This process is efficient whenever there is the need of improving the surface characteristics of metallic parts, component of products that usually require high cost maintenance because of their severe wear while functioning. This paper presents a time- efficiency analysis of two types of surface properties improving techniques. One is laser cladding and the other is thermal spraying and there are envisaged the work in process time and the availability of capacity in each of the required manufacturing systems. In addition to the efficiency obtained by scheduling activities, the laser cladding process with nano powders ensures a reduction in the use of expensive materials, about 80% compared to traditionally manufacturing, higher productivity an...
International Journal of Online and Biomedical Engineering (iJOE), 2020
The firefighting robot control using intelligent Extenics control interfaces ICEx developed by ve... more The firefighting robot control using intelligent Extenics control interfaces ICEx developed by versatile, intelligent and portable robot VIPRO platform is presented. Subsequently, VIPRO platform architecture, the innovative versatile, intelligent, portable platform, is applied on firefighting robots VIP- FiR&FiTRo, Extenics intelligent control and Universe of Discourse in an Extenics Transformation are detailed. The Extenics Control Method with Fuzzy Smoothing is developed and tested using a simple DC motor configuration in the Matlab / Simulink programming environment. A sequence for the Intelligent Control Interface Code integrated into the VIPRO is presented. The results prove the possibilities for tweaking and optimizing by intelligent Extenics control developed on VIPRO platform in order to obtain improved performance are virtually limitless.
2015 International Conference on Advanced Mechatronic Systems (ICAMechS), 2015
The paper studies the flexible robotic cells in cooperation with automated guided vehicle (AGV), ... more The paper studies the flexible robotic cells in cooperation with automated guided vehicle (AGV), in the presence of obstacles, at constant or variable speed and variable load, aiming to optimizing the interaction between AGV and flexible robotic cell components. Overall system performance is analyzed by using modeling tools for discrete event systems like Generalized Stochastic Petri Net (GSPN). The interaction between AGV and flexible robotic cell components is implemented through communication messages using serial data received from an optical XY encoder, communication protocol receive function is modeled with GSPN. Improving of the stability performances and real time motion control are analyzed and the virtual projection method is adopted using the Versatile Intelligent Portable Robot Platform VIPRO. The obtained results, validated on the experimental RTOS robotic platform and DMQX language extension for robotic applications, lead to higher performance in relation to interaction optimization, decrease the flexible cell's cycle time, increase mobility and stability of the AGV and also the development of new technological capabilities of the control systems.
2015 International Conference on Advanced Mechatronic Systems (ICAMechS), 2015
In order to help patients achieve effective and coordinating multi-joints movement easily, the pa... more In order to help patients achieve effective and coordinating multi-joints movement easily, the paper presents an active training method of a lower limb rehabilitation robot based on constrained trajectory. The realization process of the method is as follows. The patient's movement intention is recognized by analyzing the signals from torque sensors installed in rehabilitation robot joints, and the moving velocity of the mechanical arm terminal is calculated through the establishment of the damping function and the design of constrained trajectory. The velocity of joints can be calculated through kinematic Jacobi matrix, and is used to drive the joints. The moving velocity of the mechanical arm terminal on a constrained trajectory can be controlled through adjusting the damping function, in order to achieve the active rehabilitation training for different patients at different levels. Finally, the feasibility of the method is validated by the experiment.
Proceedings of the 8th International Conference on Smart Cities and Green ICT Systems, 2019
The paper evidences research results on an innovative intelligent manufacturing process and its m... more The paper evidences research results on an innovative intelligent manufacturing process and its manufacturing system. The metallic construction, based on steel framing and, consequently, on Light Gauge Steel profiles, has got an increasing attention lately, due to their specific features that involve environmental friendly building technologies, process efficiency and, last but not the least, relatively low costs. A metallic construction has a steel framing structure, similar to that of wood, but is lighter and easier to build, not to mention that it is recyclable waste. It is based on LGS profiles, that are manufactured by cold plastic deformation process of relatively low carbon steel. In order to improve the profile's material mechanical characteristics, induction hardening process is introduced, distinctly, during the whole manufacturing process stages. Thus, it is estimated a reduction of material consumption, about 10 % and, consequently, a reduction of construction costs by 7%. a
Sensors
Advanced intelligent control (AIC) is a rapidly evolving and complex field that poses significant... more Advanced intelligent control (AIC) is a rapidly evolving and complex field that poses significant challenges [...]
2021 23rd International Conference on Control Systems and Computer Science (CSCS)
The paper presents two object detector networks on USC Pedestrian database in order to detect and... more The paper presents two object detector networks on USC Pedestrian database in order to detect and localize pedestrians in photos. The COCO metrics was used, because it was considered a very important problem, well addressed. All children in pictures were well localized and the models can be used on autonomous robots and cars. Both Faster R-CNN and SSD missed a single person in the testing C dataset. The research results lead to a precision of 0.733 on Faster R-CNN and 0.583 on SSD on COCO metrics. In future works this results will be used in augmenting data for search and rescue missions conducted by first responders.
Advances in Sustainability Science and Technology, 2021
Sensors, 2022
Interest in the synthesis and fabrication of gallium oxide (Ga2O3) nanostructures as wide bandgap... more Interest in the synthesis and fabrication of gallium oxide (Ga2O3) nanostructures as wide bandgap semiconductor-based ultraviolet (UV) photodetectors has recently increased due to their importance in cases of deep-UV photodetectors operating in high power/temperature conditions. Due to their unique properties, i.e., higher surface-to-volume ratio and quantum effects, these nanostructures can significantly enhance the sensitivity of detection. In this work, two Ga2O3 nanostructured films with different nanowire densities and sizes obtained by thermal oxidation of Ga on quartz, in the presence and absence of Ag catalyst, were investigated. The electrical properties influenced by the density of Ga2O3 nanowires (NWs) were analyzed to define the configuration of UV detection. The electrical measurements were performed on two different electric contacts and were located at distances of 1 and 3 mm. Factors affecting the detection performance of Ga2O3 NWs film, such as the distance between ...
SCIENTIFIC RESEARCH AND EDUCATION IN THE AIR FORCE, 2022
The safety levels of the flight have determined the operating standards of the UAS which are tran... more The safety levels of the flight have determined the operating standards of the UAS which are transposed into the operating capabilities and the high levels of reliability of the ground command and control systems / ground equipment. The ground control station (GCS) or C3 is a subsystem of the UAS that has its own command and control technologies in flight and communications with high speeds of data transfer over long distances. The ground control stations (GCS) of unmanned aerial vehicles allow a single operator to handle all flight-related tasks simultaneously with the acquisition of data from areas of interest. The article contains an overview of the construction stages of an experimental model of the portable ground station for the command and control of unmanned aerial vehicles on board.
2021 23rd International Conference on Control Systems and Computer Science (CSCS), 2021
The paper presents improved performance strategies of the Autonomous Mobile Robot Vectors (AMRV) ... more The paper presents improved performance strategies of the Autonomous Mobile Robot Vectors (AMRV) by New Intelligent Control Interfaces developed on an innovative CPS control system of terrestrial, aerial, and aquatic robots. The portable hardware system, with open architecture, allows the integration of other devices necessary for the communication and control of robotic vectors as well as the collection of sensory, video, and audio data for analysis and storage. The research results lead to the configuration for the AMRV's communication protocol with outstanding performance, reliable, intuitive use, integrated into an intelligent platform for the control of the missions specific to robot vectors.
2019 22nd International Conference on Control Systems and Computer Science (CSCS), 2019
The paper presents a VIPRO versatile, intelligent and mobile platform for real time robot control... more The paper presents a VIPRO versatile, intelligent and mobile platform for real time robot control, by applying an original virtual projection method which involves the representation of modern mobile robots in a 3D virtual environment using a strong robotic simulator, an open architecture system and adaptive networks over the classical control system of the robot, developing intelligent control interfaces that use advanced control technologies adapted to the robot environment such as extended control (Extenics), neutrosophic control, human adaptive mechatronics. The obtained results lead to application development on mobile robots in virtual and real environments, allowing a correct evaluation of force-position robot behaviors and high level real-time simulation in order to correctly model interactions among the robot and the motion environment.
Proceedings of the 8th International Conference on Smart Cities and Green ICT Systems, 2019
The article presents aspects of integrating Anthropomorphic Walking Robots (AWRs) into Smart Gree... more The article presents aspects of integrating Anthropomorphic Walking Robots (AWRs) into Smart Green city systems. Through the interaction of physical systems assisted by artificial intelligence, it is estimated that environmental pollution risks are reduced by manufacturing processes; improving the pace of citizens' lives by efficiently managing the travel time between different regions of the city; increasing the quality of social life, ensuring a greater degree of independence of the elderly or disabled people etc. In order to achieve the above mentioned, the paper highlights some aspects of research on detection, monitoring, control and navigation of AWRs, as well as elements of standardization of intelligent urban processes and actions.
Progress on Difference Equations and Discrete Dynamical Systems, 2020
IFAC-PapersOnLine, 2020
Abstract The paper presents the development of a digital twin for a high frequency hardening robo... more Abstract The paper presents the development of a digital twin for a high frequency hardening robot and connected hardware and software modules. The paper describes the virtual environment model, the robot emulation and optimization model, and the reference generation model, as well as their respective visual interfaces, used for controlling both the physical and digital robots. The application is integrated into the multi-purpose Virtual Intelligent Portable Robot Platform (VIPRO).
IOP Conference Series: Materials Science and Engineering, 2021
In the framework of planning and scheduling process for improving surface characteristics the las... more In the framework of planning and scheduling process for improving surface characteristics the laser cladding process is one of the best solutions, due to the fact that it involves deposition of high-quality material layers by laser radiation. This process is efficient whenever there is the need of improving the surface characteristics of metallic parts, component of products that usually require high cost maintenance because of their severe wear while functioning. This paper presents a time- efficiency analysis of two types of surface properties improving techniques. One is laser cladding and the other is thermal spraying and there are envisaged the work in process time and the availability of capacity in each of the required manufacturing systems. In addition to the efficiency obtained by scheduling activities, the laser cladding process with nano powders ensures a reduction in the use of expensive materials, about 80% compared to traditionally manufacturing, higher productivity an...
International Journal of Online and Biomedical Engineering (iJOE), 2020
The firefighting robot control using intelligent Extenics control interfaces ICEx developed by ve... more The firefighting robot control using intelligent Extenics control interfaces ICEx developed by versatile, intelligent and portable robot VIPRO platform is presented. Subsequently, VIPRO platform architecture, the innovative versatile, intelligent, portable platform, is applied on firefighting robots VIP- FiR&FiTRo, Extenics intelligent control and Universe of Discourse in an Extenics Transformation are detailed. The Extenics Control Method with Fuzzy Smoothing is developed and tested using a simple DC motor configuration in the Matlab / Simulink programming environment. A sequence for the Intelligent Control Interface Code integrated into the VIPRO is presented. The results prove the possibilities for tweaking and optimizing by intelligent Extenics control developed on VIPRO platform in order to obtain improved performance are virtually limitless.
2015 International Conference on Advanced Mechatronic Systems (ICAMechS), 2015
The paper studies the flexible robotic cells in cooperation with automated guided vehicle (AGV), ... more The paper studies the flexible robotic cells in cooperation with automated guided vehicle (AGV), in the presence of obstacles, at constant or variable speed and variable load, aiming to optimizing the interaction between AGV and flexible robotic cell components. Overall system performance is analyzed by using modeling tools for discrete event systems like Generalized Stochastic Petri Net (GSPN). The interaction between AGV and flexible robotic cell components is implemented through communication messages using serial data received from an optical XY encoder, communication protocol receive function is modeled with GSPN. Improving of the stability performances and real time motion control are analyzed and the virtual projection method is adopted using the Versatile Intelligent Portable Robot Platform VIPRO. The obtained results, validated on the experimental RTOS robotic platform and DMQX language extension for robotic applications, lead to higher performance in relation to interaction optimization, decrease the flexible cell's cycle time, increase mobility and stability of the AGV and also the development of new technological capabilities of the control systems.
2015 International Conference on Advanced Mechatronic Systems (ICAMechS), 2015
In order to help patients achieve effective and coordinating multi-joints movement easily, the pa... more In order to help patients achieve effective and coordinating multi-joints movement easily, the paper presents an active training method of a lower limb rehabilitation robot based on constrained trajectory. The realization process of the method is as follows. The patient's movement intention is recognized by analyzing the signals from torque sensors installed in rehabilitation robot joints, and the moving velocity of the mechanical arm terminal is calculated through the establishment of the damping function and the design of constrained trajectory. The velocity of joints can be calculated through kinematic Jacobi matrix, and is used to drive the joints. The moving velocity of the mechanical arm terminal on a constrained trajectory can be controlled through adjusting the damping function, in order to achieve the active rehabilitation training for different patients at different levels. Finally, the feasibility of the method is validated by the experiment.