Faculty Publications
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Item Integrated coastal zone management plan and coastal zone information system for Mangalore Coast, West Coast of India(2006) Dwarakish, G.S.; Shetty, D.; Rajarama; Pai, J.; Natesan, U.In the present study, Integrated Coastal Zone Management Plan (ICZMP) has been developed for Mangalore Coast in Karnataka, along the West Coast of India, by analyzing the remotely sensed data and conventional data. The various data products used in the present study includes, IRS-1C LISS-III+PAN and IRS-P6 LISS IV remotely sensed data, Naval Hydrographic Chart and Survey of India (SOI) toposheets. Different thematic maps prepared in the present study includes, land use/ land cover map, bathymetry map, shoreline configuration map, transportation and drainage network maps, GPS survey map, CRZ map, contour map, DEM, inundation map and coastal erosion vulnerability map. The results of the present study are encouraging. Some of the specific conclusions of the study are; eight coastal vulnerability sites have been identified, significant increase in the built-up area and decrease in the agricultural land, no large scale erosion or deposition in the vicinity of coastal structures such as seawalls, breakwaters and entrance channel of New Mangalore Port Trust and the beaches along the Mangalore Coast are maintaining dynamic equilibrium. To get the online information about all these, Coastal Zone Information System (CZIS) has been developed through V. B. 6. 0. using results of various data analyses.Item Platform for mechatronics education using (1) mechatronics technology demonstrator and (2) web based virtual experimentation(American Society of Mechanical Engineers (ASME) infocentral@asme.org, 2017) Shetty, D.; Umesh, P.; Gangadharan, K.Increasing demands on the productivity of complex systems, such as machine tools and their steadily growing technological importance will require the application of new methods in the product development process. This paper shows that the analysis of the simulation results from the simulation based mechatronic model of a complex system followed by a procedure that allows a better understanding of the dynamic behavior and interactions of the components. This paper will highlight the results of interaction between National Institute of Technology, (NITK) Surathkal, India and University of District of Columbia (UDC) in the area of Mechatronics and virtual testing. Mechatronics is a design philosophy, which is an integrating approach to engineering design. Through a mechanism of simulating interdisciplinary ideas and techniques, mechatronics provides ideal conditions to raise the synergy, thereby providing a catalytic effect for the new solutions to technically complex situations. Many real-world systems can be modeled by the mass-spring-damper system and hence considering one such system, namely Mechatronics Technology Demonstrator (MTD) is taken as the first example. MTD is a portable low cost, technology demonstrator that can be used for teaching mechatronics system design. The paper highlights design optimization of several mechatronic products using the procedures derived by the use of mass spring damper based mechatronic system. The second example is on web based virtual experimentation, where the experiment is conducted by remote triggering of Torsion Testing Machine. Remote triggered (RT) experimentation is a method of remotely controlling the laboratory equipment by an internet based system from a webpage. RT lab is an excellent way for the students to get access to expensive state of the art labs and equipment. The present work deals with the systematic approach of realizing a remote triggered experimentation on a horizontal torsional testing machine which can be triggered from a tablet PC or a laptop through an internet connection directed to the server computer system. RT lab algorithms are built in the server computer and the information and controls will be displayed on an html webpage where the experiment can be conducted. In this experiment the machine is remotely started through a command in the webpage which will be directed to the main server computer system from a wireless handheld internet enabled device such as laptops or tablet PCs and render the suitable graph of the experiment in the device. The experiment is completely in the control of the user. The person can either on/off the main equipment with the help of the device within the given slot of time and the data from the graph can be retrieved for further analysis. The first example uses a software platform of VisSim and the second example uses a software platform LabView. Although located in two different locations and countries, this paper examines the common mechatronics philosophy and the design approach used in modeling, simulation, optimization and virtual experimentation in building robust mechatronics product and procedures. © © 2017 ASME.Item AN ECONOMICAL APPROACH TOWARDS BATHYMETRIC MAPPING OF SHALLOW WATER BASINS USING UNMANNED SURFACE VESSEL(American Society of Mechanical Engineers (ASME), 2022) Shetty, D.; Kotian, R.; Sequeira, S.L.; Pavithra, N.R.; Umesh, P.; Gangadharan, K.V.In recent years, the use of unmanned vehicles has advanced because of a growing number of civil applications such as firefighting or non-military security work, such as surveillance of pipelines etc. The application of these technologies with decreased cost and size has received attention in both civil and military applications. Recent advances in sensors, modeling and simulation and availability of open-source software and hardware for data integration has created an environment of remotely monitoring that was not possible a few years ago. This paper examines a niche cost-effective, portable Unmanned Surface Vessel that has been designed to capture the bathymetric profile of shallow water basins using single beam echosounder. Bathymetry is the measurement of the depth of water in oceans, rivers, or lakes. Bathymetric maps look a lot like topographic maps, which use lines to show the shape and elevation of land features. Today, echo sounders are used to make bathymetric measurements. Global shallow water bathymetry maps offer critical information to inform activities such as scientific research, environment protection, and marine transportation. Accurate mapping of shallow bathymetry is critical for understanding and characterizing coastal environments providing a foundation for measuring underwater light density, mapping and monitoring and planning marine operations and transportation. Methods for estimating shallow water bathymetry have suffered from a variety of trade-offs and limitations. Conventional methods such as shipborne sounding or airborne LiDAR have limited spatial coverage. The unit described in this paper has been designed and has been trained to acquire data in a predefined set path, minimizing the human intervention and the associated errors. A successful trial run was done for mapping the bed profile of the river basin in India. The vessel has been upskilled for capturing sonar data sets, with water quality parameters and soil samples using an automated auger. The vessel functions using the combined various open-source software and hardware tools for data assimilation, while the captured data sets are real- time transferred using IOT to Ground Controlled Station. The tropical river basin chosen is a part of Netravati River located in Dakshina Kannada District, Karnataka, India. This area is a part of the monsoon belt, and the Netravati riverbed is subjected to heavy sand deposition during a part of the year. The data on the excessive sand deposition is of immense value to the district and state administration. This study has been carried out at a frequency of 30 days and is provided as an input during non- monsoon period for district administration for outlining removal of excessive sand deposition monitoring of water quality in the estuarine ecosystem. The work done is a one-of-a-kind pilot study developed in-house using the recent advances seen in the world of open-source platforms. This paper demonstrates a unique application that is of value to the state administration in decision making and in addition contributes to environmental monitoring of the riverbed. © © 2022 by ASME.Item DEVELOPMENT OF PORTABLE GROUND CONTROL STATION FOR REAL-TIME DATA MONITORING OF AN UNMANNED SURFACE VESSEL(American Society of Mechanical Engineers (ASME), 2023) Kotian, R.; Umesh, P.; Gangadharan, K.V.; Shetty, D.This paper presents a portable ground control station for unmanned surface vessels (USVs) that can operate autonomously or remotely without crew onboard. USVs equipped with various sensors, propulsion systems, and communication equipment perform a wide range of tasks, including scientific research, environmental monitoring, and maritime security. The Ground Control Station (GCS) is essential to the operation of a USV, enabling remote control and monitoring of the vehicle, allowing it to operate autonomously or semi-autonomously. A portable GCS allows the operator to bring the system to remote or difficult-to-access locations, enabling the USV to operate in a wider range of environments and conditions. The paper describes the hardware architecture of the system, with an emphasis on navigational sensors for guidance and control. The hardware components include controllers, communication equipment, and sensors such as GPS, and sonar. These sensors provide the USV with real-time information about its position, velocity, and environment, enabling informed navigation and control decisions. The software includes control algorithms, user interfaces, and data processing tools that allow the operator to control and monitor the USV's operations. The user-friendly software interfaces and clear feedback make it easy for the operator to manage the USV's movements and data collection. Overall, the paper provides insights into the design and implementation of a system for controlling USVs, focusing on hardware, User interface and, and Mission planning. © © 2023 by ASME.Item Development of a LoRaWAN-Enabled Unmanned Aerial System for Autonomous Real-Time Surveillance and Monitoring(American Society of Mechanical Engineers (ASME), 2023) Manish, E.S.; Umesh, P.; Gangadharan, K.V.; Shetty, D.This research paper proposes a LoRaWAN-enabled Unmanned Aerial System (UAS) for autonomous real-time surveillance and monitoring for agriculture fields. Traditional security measures in agriculture face challenges due to their high costs and labor-intensive nature, especially on large farms. The paper outlines the development of the complete system, explaining each block that forms its components. Additionally, it presents an experiment where a UAS successfully flew to a specific location triggered by motion sensors connected to LoRa nodes as part of surveillance and monitoring of an area. The results demonstrate the system's effectiveness in real-time monitoring and autonomous operation. By leveraging LoRaWAN technology, this system offers a promising solution to enhance agricultural security and efficiency. The integration of technologies showcased in this research contributes to the field of precision agriculture. © © 2023 by ASME.