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Design and Control of Autonomous Underwater Vehicle using Variable Buoyancy System

P. Vinoth Kumar, J. Dhanasekar, Dr.R. Sivaramakrishnan, Dr.K. Kalaichelvan


The autonomous underwater vehicles are operated by power thrust to reach the desired depth. This system consumes more power or thrust and it is overcome by variable buoyancy system. In this project a feedback system is used by employing a control pressure sensor. With the help of this pressure sensor, the depth sensor is to be designed. The signal from the pressure sensor will be used to find the depth of the immersion of autonomous underwater vehicle from the top of the water surface. The signal from the pressure sensor is used to maintain the autonomous underwater vehicle at desired depth level. The sea level pressure is measured with help of pressure sensor. The output of the pressure sensor is an analog signal and is given to the ADC (analog to digital converter) port of microcontroller which takes decision on pumping sequence depending upon the input voltage (the digital value given to it)the microcontroller will control the driver unit to pump either in or out based on control signal. When the required depth level is reached the driver circuits takes some delay and automatically drives the pump out circuit to pump out the water till the preset value is reached. This sequence of pumping in and pumping out of the water will be controlled by the microcontroller for various digital input values.


Buoyancy, Pressure Sensor Calibration, Depth Control

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Bob Anderson and Jon Crowell, “Workhorse AUV – A cost-sensible new Autonomous Underwater Vehicle for Surveys/ Soundings, Search & Rescue and Research” Ocean server Technology, Inc, 2006.

Chunzhao Guo and Naomi Kato “Mini Underwater Glider (MUG) for Education”, Department of Naval Architecture and ocean engineering, Osaka University, 2009.

Damus.R .and Navelkar.G, “Design of an inspection class autonomous underwater vehicle”AUV lab, Massachusetts Institute of Technology, Cambridge, pp.180-185.2002

Henry Robinson and Brain Phillips, “3D Autopilot and Mission controller for AUVs” H scientific Ltd, U.K.2001.

Jeffery Reidel .S, Anthony Healey.J, “Design and Development of Low cost Variable Buoyancy System for the Soft Grounding of Underwater Vehicles” Naval postgraduate school (Centre for AUV research),1998.

Phil Bagley, Mark Worall and Anne Holford “Variable buoyancy device” University of Aberdeen, ocean lab, Newburgh, U.K.2006.

Pramod Maurya, Desa. E, Pascoal.A, “Control of the Maya AUV in the vertical and horizontal planes”. National Institute Of Oceanography Goa, India, 1998.

Sekhar Tangirala and John Dzielski, “A variable buoyancy control system for a large AUV” IEEE journal of oceanic engineering, Vol.32, No.4, Oct 2007.

Spiwak.JM and Jouvencel.B, “A new design of AUV for shallow water applications” Proceedings of the Sixteenth International Offshore and polar Engineering Conference, San Francisco, pp233-237, June 2006.

Tadahiro Hyakudome, Taro Aoki, Tosho Maeda, Takashi Murashima Satoshi Tsukioka, Tadahiko Ida and Takuji Ichikawa. “Buoyancy control for deep and long cruising range AUV”, Japan Marine Science and Technology Center Yokosuka, Japan.


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