Maya AUV India

Maya AUV
Maya AUV at National Institute of Oceanography, Dona Paula, Goa, India
Manufacturer	National Institute of Oceanography, India
Country	India
Year of creation	2003-2007
Type	Autonomous underwater vehicle
Purpose	Chemical Oceanography, Biological Oceanography, Oceanography, and Data collection
Website	www.nio.org

Maya AUV is an Autonomous Underwater Vehicle (AUV), developed by the Marine Instrumentation Division at the National Insititute of Oceanography (NIO), India.

Description of the Maya AUV

The Maya AUV belongs to a class of small Autonomous Underwater Vehicles ^[1] which have been gaining popularity in different marine application areas such as oceanography, monitoring the coastal environment, as well as in naval applications such as mapping of naval mines for mine countermeasures. The development of Maya was jointly funded by NIO and the Department of Electronics and Information Technology, New Delhi, India (known as the Department of Information Technology prior to 2012). The AUV whose development began in 2003,^[2] completed horizontal plane tests in May 2005,^[3] with the first set of dive missions tested on May 12, 2006,^[4] making it India's first indigenously developed AUV for scientific applications. The vehicle has an endurance of 7.2 hours,^[5] a total length of approximately 1.7 m, a diameter of 0.234 m with a slender-ellipsoid shaped nose that is free-flooding and houses various scientific payloads.^[6] The nose-cone is designed to be swappable to use alternate scientific sensors depending upon the application. The main pressurized hull of the AUV is rated to 200m depth operations and houses the electronics, navigation sensors, batteries as well as the actuators for the rudders and fins. The AUV is propelled by a single rear thruster located in the aft section which also houses a mast for the GPS and communication antennae. Navigation sensors include a Doppler Velocity Log and a MEMS Inertial Measurement Unit. The vehicle weighs approximately 54 kg in air, with the main hull built from an Aluminum alloy. It is powered by Lithium polymer batteries and has a nominal speed of 1.5 m/s.^[7] Part of the Maya AUV development was done under the scope of an Indo-Portuguese collaboration that aimed to build and test the joint operation of two AUVs for marine science applications via AdI Portugal (MAYASub project). Sensors used in the Maya AUV include Aanderaa dissolved oxygen sensor, WetLabs chlorophyll and turbidity sensors, RBR CTD (instrument) and a TRIOS "hyper spectral radiometers".^[8] The AUV uses standard LQ controllers for control in the horizontal and vertical planes.^[9] NIO signed agreements for the licensing of AUV technology with VEA Automation and Robotics in 2009 and L&T, in 2010.

References

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