Overview of the Micro Air Vehicles Project
INSPIRED by the biology of a bee and the insect’s hive behavior ...
we aim to push advances in miniature robotics and the design of compact high-energy power sources; spur innovations in ultra-low-power computing and electronic “smart” sensors; and refine coordination algorithms to manage multiple, independent machines.
Coordinated agile robotic insects can be used for a variety of purposes including:
autonomously pollinating a field of crops;
search and rescue (e.g., in the aftermath of a natural disaster);
hazardous environment exploration;
high resolution weather and climate mapping; and
These are the ubiquitous applications typically invoked in the development of autonomous robots. However, in mimicking the physical and behavioral robustness of insect groups by coordinating large numbers of small, agile robots, we will be able to accomplish such tasks faster, more reliably, and more efficiently.
Vision and Aims
The collaborators envision that the Nature-inspired research could lead to a greater understanding of how to artificially mimic the collective behavior and “intelligence” of a bee colony; foster novel methods for designing and building an electronic surrogate nervous system able to deftly sense and adapt to changing environments; and advance work on the construction of small-scale flying mechanical devices.
More broadly, the scientists anticipate the devices will open up a wide range of discoveries and practical innovations, advancing fields ranging from entomology and developmental biology to amorphous computing and electrical engineering.
Through a relationship with the Museum of Science, Boston, the team will also create an interactive exhibit to teach and inspire future scientists and engineers.
From flies to fish to lobsters, small insects and animals have long been ideal models for roboticists and computer scientists. Bees, for example, possess unmatched elegance in flight, zipping from flower to flower with ease and hovering stably with heavy payloads.
By leveraging existing breakthroughs from Professor Wood’s Microrobotics Lab, which conducted the first successful flight of a life-sized robotic fly in 2007, the team will explore ways to emulate such aerobatic feats in their proposed devices. In addition, achieving autonomous flight will require compact high-energy power sources and associated electronics, integrated seamlessly into the ‘body’ of the machine.
One of the most complicated areas of exploration the scientists will undertake will be the creation of a suite of artificial “smart” sensors, akin to a bee’s eyes and antennae. Professor Wei explains that the ultimate aim is to design dynamic hardware and software that serves as the device’s ‘brain,’ controlling and monitoring flight, sensing objects such as fellow devices and other objects, and coordinating simple decision-making.
Finally, to mimic the sophisticated behavior of a real colony of insects will involve the development of sophisticated coordination algorithms, communications methods (i.e., the ability for individual machines to ‘talk’ to one another and the hive), and global-to-local programming tools to simulate the ways groups of real bees rely upon one another to scout, forage, and plan.
The investigators, primarily based at Harvard’s School of Engineering and Applied Sciences, will coordinate efforts with faculty from the Department of Organismic and Evolutionary Biology in the Faculty of Arts and Sciences at Harvard and Northeastern University’s Department of Biology.
In addition, Centeye, a microelectronics firm in Washington, D.C., specializing in vision chip and visual sensor technology, will contribute technical knowledge.
A number of the collaborators are core faculty members of the newly created Wyss Institute for Biologically Inspired Engineering. As the work fits particularly well with Wyss’s mission of “creating new materials and devices using Nature’s design principles,” the Institute, along with SEAS, will play a critical role in supporting the research, providing laboratory space and in-kind financial support.
By the numbers
Folding joints: 22
Assembly scaffold folding joints: 115
Total device folding joints: 137
Number of brass pads for "glue" points: 52
Total number of "glue" points: 24
Mass: 90 mg
By mass, one U.S. quarter = 63 Harvard Monolithic Bees