Browsing by Author "Bidari, L."

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Cross Platform Web Accessible Remote Experiment Architecture using NI PXI, LabVIEW Web Server and Javascript Libraries
(Institute of Physics, 2025) Bidari, L.; Kaup, P.S.; Bidari, K.; Rai, S.K.; Gangadharan, G.
Remote Laboratories have become vital tools for education, research and industrial training, enabling experimentation beyond spatial and temporal constraints. The increasing need for flexible and accessible experimentation necessitates the development of robust remote laboratory architectures built using reliable proprietary hardware. This work presents such a remote laboratory architecture developed for two vibration experiments. The current work leverages a National Instruments PXI system alongside LabVIEW for experiment automation and web based control. The backend is built using the LabVIEW web server coupled with Google Javascript and AJAX libraries. This kind of design ensures platform-independent access via standard web browsers on laptops and mobile devices. Performance evaluation of the developed system demonstrated the system's efficiency and responsiveness. Upon receiving the user input via the browser based user interface, the experiment is triggered swiftly within 0.5 seconds. A ten-second graphical representation of acquired vibration data complete with precise acquisition timestamps is displayed on the client's browser, providing real-time feedback. This accelerated processing power is due to the integration of web server and controller in a single system. Â© Published under licence by IOP Publishing Ltd.
Design and experimental analysis of a non-magnetic cantilever beam in a remotely controlled free vibration setup using LabVIEW
(American Institute of Physics, 2025) Bidari, L.; Kamath, N.; Kaup, P.S.; Swamy, K.B.M.; Kalluvalappil, G.
Free vibration analysis finds a plethora of applications in real-world systems, ranging from deciding design factors to addressing maintenance concerns; hence, it forms a fundamental basis of material sciences and structural engineering. Cantilever structures are widespread across various physical systems, from domestic applications such as diving boards or parking shields to heavy-duty industrial applications such as airplane wings or windmill blades. In this paper, a non-magnetic cantilever beam is excited using a cam attached to a stepper motor. The trigger results in free vibrations of the cantilever beam and this data is collected by the accelerometer. The entire experiment is carried out distantly using LabVIEW remote panels, and frequency analysis and calculations are performed on the vibration data collected. The designed remote experimental setup provided near-accurate results for natural frequency calculation, and this is validated experimentally using an impact hammer and theoretically using physical parameters. The remote setup provides the freedom to model and simulate different physical conditions and systems as cantilever structures in the experimental environment. This results in an easy understanding of beam behavior in real-time systems. Â© 2025 Author(s).
Implementing indoor climate control using a cyber-physical systems approach
(American Institute of Physics, 2025) Verma, B.S.; Kamath, N.; Bidari, L.; Kalluvalappil, G.
Maintaining a comfortable temperature, reducing humidity, and optimizing airflow constitute indoor climate control. This improves the air quality by controlling moisture and regulating the air. Climate-sensitive situations, like those in Intensive Care Units (ICU) and laboratories that follow Bio-safety levels (BSL), heavily depend on this technology to ensure health and safety by keeping the environment sterile by manipulating the airflow. The extent of this technology is more comprehensive than these situations. This solution can benefit people living in harsh conditions where comfort and productivity are seldom limited. This study proposes a novel cyber-physical system (CPS) approach by considering individual parameters influencing indoor climate, such as temperature, humidity, and occupancy. A distributed approach where multiple custom-made units that house a microcontroller and sensors such as DHT-11, DHT-22, ENS160, and PIR motion sensor are kept in strategic locations that communicate with each other over Things board, and the air conditioning unit present in the enclosed space ensures optimal indoor climate control. Considering the occupancy data, the system adjusts itself in real time, optimizing energy consumption and leading to localized climate regulation. This study explores the application of control logic in a small-scale Peltier device system. The objective is to develop a control system that efficiently regulates the Peltier device's temperature. This study investigates control strategies, i.e., Proportional-Integral-Derivative (PID) control, to maintain precise temperature control in the system. The control method is analyzed for its effectiveness, robustness, and energy efficiency in the context of the Peltier device. A 3Â°C reduction was observed for 3 minutes in the scaled system. Â© 2025 Author(s).