6:00 PM, Tuesday, 16 September
CONTROLLING BIOMIMETIC UNDERWATER ROBOTS WITH ELECTRONIC NERVOUS
SYSTEMS
Prof. Ayers has been developing biomimetic robots based
on neurobiological model systems, the lobster and the lamprey. Existing
implementations of these robots are based on finite state machine based
controllers that instantiate a set of finite state machines based on the
organizational units of the animal model nervous systems. These state
machines include leg or body axis central pattern generators (CPGs) that
generate leg movements or undulations, postural pattern generators that
control compensatory appendages and/or adaptive sensors and sensory
integration networks that process sensor information. The use of neuron
models instead of finite state systems allows one to replicate in great
detail the real behavior of the neurobiological system (a network) and,
thanks to spiking nature of the models, provides a link between the
control functions and the experimental measurements from the animal. The
key feature of these models is that because they are based on capturing of
nonlinear dynamical behavior of neurons rather than neuronal conductance
models, they are simpler, can operate in real time and are thus suitable
for robotic control applications.
Prof. Joseph Ayers earned his BA degree in biology at
the University of California at Riverside, and a Ph.D., also in biology,
at the University of California at Santa Cruz. He held postdoctoral
positions in neurophysiology at the Centre National de la Recherche
Scientifique in Marseilles, France, and at the University of California in
San Diego. Prof. Ayers was Alfred E. Sloan Foundation Fellow at the
Department of Biology, Northeastern University, and subsequently Director
of the NEU's Marine Science Center. In this capacity he oversaw the
operations and programs of the Marine Science Center, the associated
research vessels and the East/West Marine Biology Program. He is currently
Full Professor of Biology at the NEU's Department of Biology and Marine
Science Center in Boston and East Point, Nahant, MA. Prof. Ayers is the
author of numerous books, articles, patents and software programs; his
research has also attracted considerable interest in the popular media.
Prof. Ayers' primary interest is the neurobiology of
motor systems in invertebrates and lower vertebrates, and the application
of this knowledge to the development of advanced robots and
neuroprostheses. He has developed technology to record motor patterns and
signals in animals, reproduce them in robots (biomimesis) and study the
resulting behavior. He is currently focusing on electronic nervous systems
to control these robots based on analog VLSI and discrete-time map based
instantiations of nonlinear dynamical models of neurons.
The Boston Chapters of the IEEE Robotics and Automation
Society and the IEEE Control Systems Society will meet at the Franklin W.
Olin College of Engineering, Olin Way, Needham, MA 02492,
http://www.olin.edu/ on Tuesday, September 16, 2008, for an informal
discussion at 6:00 PM and the presentation at 6:30.
Directions to Olin College: Take Route 95/128 to exit
19B (Highland Avenue, Needham). Follow Highland Avenue for 1.5 miles to a
three-way intersection with Chapel and May Streets; bear slight right onto
Chapel Street (to the right of the gas station). Take a right at the first
light onto Great Plain Avenue/Rte 135. Proceed on Great Plain Avenue for
1.5 miles and the Olin College campus will be on the right. Enter the
campus at Olin Way and follow the road around to the left to parking lot
A, which provides access to all campus buildings. From the parking lot
take the walkway across the traffic circle to Milas Hall and proceed to
the Auditorium inside. For a campus map, please refer to:
http://www.olin.edu/campus/campus_map.asp
After the meeting, at approx. 8:00 PM, the group will
have a no-host dinner at Bertucci's, 1257 Highland Ave., Needham, MA
02492, where more conversations can take place with the guest speaker.
Driving directions from Olin College to Bertucci's: Backtrack the previous
route on Great Plain Avenue, Chapel St. to Highland Avenue. The restaurant
will be located inside a plaza on the left, about 600 ft past the
three-way intersection with Chapel and May Streets.
The meetings are open to the general public, and all are
welcome at the dinner afterwards. For more information about the Robotics
and Automation Society, contact Chapter Chair Peter Meyer at (781)
334-0052 or
info@robotics-boston.org or visit
http://www.robotics-boston.org/. For more information about the
Control Systems Society, contact Chapter Chair Tony Pandiscio at (978)
858-4923 or
Alfred_A_Pandiscio@raytheon.com.