With the ability to gather unprecedented data on the impact of underwater equipment used to harvest wave and tidal energy, the Millennium Falcon robot will help researchers explore the ocean鈥檚 future as a renewable energy source.
鈥淲e鈥檝e really become leaders in this space, leveraging UW expertise with cabled instrumentation packages like those developed for the Ocean Observatories Initiative. What鈥檚 novel here is the serviceability of the system and our ability to rapidly deploy and recover the instruments at low cost,鈥� said Andrew Stewart, an ocean engineer at the UW Applied Physics Laboratory.
The instrument package can track and measure a number of sights and sounds underwater. It has a stereo camera to collect photos and video, a sonar system, hydrophones to hear marine mammal activity, sensors to gauge water quality and speed, a click detector to listen for whales, dolphins and porpoises, and even a device to detect fish tags. A fiber optic cable connection back to shore allows for real-time monitoring and control, and the device will be powered by a copper wire.
The breadth of sensors and various conditions this instrument can measure is unprecedented, researchers say. The tool also is unique for its ability to attach to most types of underwater infrastructure, ranging from tidal turbines to offshore oil and gas rigs. This allows researchers to easily deploy the instrument far offshore and recover it quickly at a relatively low cost compared with other approaches.
鈥淚t could be a first step toward a standardized 鈥榮cience port鈥� for marine energy projects,鈥� Polagye said.
Using the Force
One of the researchers behind the Millennium Falcon, Andrew Stewart, is diving deeper into the world of underwater robotics as the ocean engineer at BluHaptics, a 2014 UW startup. BluHaptics makes operating a remotely operated underwater vehicle (ROV) as easy as playing a video game. 鈥淐ontrolling an ROV is difficult,鈥� explains Ryan Cox, a senior in electrical engineering and BluHaptics intern. 鈥淵ou don鈥檛 get a sense of depth, so operators bump into things or accidentally break parts off.鈥�
The startup鈥檚 algorithms and software provide haptic 鈥� or force 鈥� feedback on the joystick-like controller. Operators are guided into the perfect grasp and manipulation of an object, and can rotate the image to view the arm鈥檚 position in relation to other objects. The technology also creates a 3-D representation of the ROV鈥檚 target objects and their environments, which the operator can view on a monitor or through a virtual reality headset. BluHaptics鈥� technology is largely based on the recent Ph.D. dissertation of Dr. Fredrik Ryd茅n, a research associate in the UW鈥檚 electrical engineering department.
Bolstered by , BluHaptics is exploring broad applications of the software in underwater tasks, from repairing equipment to cleaning up oil spills. The company was also named to the Puget Sound Business Journal鈥檚 2014 list of five UW 鈥渟tartups to watch.鈥� Dr. Howard Chizeck, BluHaptics鈥� chairman of the board and UW professor of electrical engineering, says he is looking forward to the boundless future in store for the young company. 鈥淲e鈥檙e totally changing the way that people interact with remote robots by giving that crucial sense of touch.鈥�