Smriti Chopra

PhD, Swarm Robotics

ABOUT

I am a recent graduate of the Georgia Institute of Technology. I received a Ph.D degree in Electrical and Computer Engineering, while working at the Georgia Robotics and Intelligent Systems (GRITS) lab, with Magnus Egerstedt as my advisor. My research focused on
multi-agent robotics, and in particular, routing algorithms for large teams of mobile robots.

I received an MS degree in Electrical and Computer Engineering from Georgia Tech, and a BTech degree in Electronics and Communications from the Manipal Institute of Technology, India. It was during my undergraduate studies, at one of our many college technical festivals, that I discovered my fascination with robotics, and decided to set off for the US, to pursue a more formal education. 

Besides spending hours figuring out “swarming” algorithms for robots, I love discovering old bookstores, reading novels at local coffee shops, playing pool in dusty taverns, exploring new cities and hijacking pianos at hotel lobbies to play a tune or two.

RESEARCH

SPATIO-TEMPORAL ROUTING

Spatio-temporal routing requires multiple robots to visit spatial locations at specified time instants, while optimizing certain criteria like the total distance traveled, or the total energy consumed. In our research, we analyze spatio-temporal routing under various constraints specific to multi-robot applications.  

We consider music as an intuitive medium for demonstrating the spatio-temporal theme of our work. For instance, consider a person presented with the task of playing a particular piano piece. The sheet music for such a piece acts as a set of instructions for the person, providing information on which piano notes need playing at which time instants. However, the person needs to figure out “how” to play the piece, for example, decide which finger goes where, or how many fingers should be used. Drawing inspiration from such notions, we use spatio-temporal requests as a high level instruction set for multiple robots, and analyze the ensuing routing problem under different constraints specific to multi-robot applications.

PUBLICATION JOURNALS 

Distributed Dynamic Spatio-Temporal Routing 
Automatica  2015  (to be submitted) 
S. Chopra, M. Rice, and M. Egerstedt   

Spatio-Temporal Multi-Robot Routing 
Automatica  2014 
S. Chopra and M. Egerstedt

CONFERENCE PROCEEDINGS

A Multi-Robot Orchestra: Dynamic Spatio-Temporal Routing 
IEEE American Control Conference (ACC) 2016 (to be submitted) 
S. Chopra, M. Rice, and M. Egerstedt    

Heterogeneous Multi-Robot Routing 
IEEE American Control Conference (ACC) 2014 
S. Chopra and M. Egerstedt

Multi-Robot Routing under Connectivity Constraints 
IFAC Workshop on Networked Systems 2012 
S. Chopra and M. Egerstedt   

Multi-Robot Routing for Servicing Spatio-Temporal Requests: A Musically Inspired Problem 
IFAC Conference on Analysis and Design of Hybrid Systems 2012 
S. Chopra and M. Egerstedt   

Using Floating-Gate Based Programmable Analog Arrays for Real-Time Control of a Game-Playing Robot 
IEEE International Conference on Systems, Man & Cybernetics 2011
S. Koziol, D. Lenz, S. Hilsenbeck, S. Chopra, P. Hasler, and A. Howard

PRESS

Media coverage of the hardware realization of my research a.k.a. the “Music Wall”

A sample set of related web articles:  

Tiny Swarm Robots play Beethoven, Wired

Swarm Robots Perform Classical Scores, Engadget

Robots Swarm for Beethoven, Spiegel

When Machines See (Video Bonus), Smithsonian

PORTFOLIO

A representative profile of different programs, projects and assignments that I was involved in, besides research.

TEAMMATE | Innovative Robotic Projects

In particular, two fun projects that I was a part of at Georgia Tech. First, “Popshot” – an automated canned drink launcher and second, “Robotic Tower of Hanoi” – A game playing autonomous robot, which resulted in the following publication: Using Floating-Gate Based Programmable Analog Arrays for Real-Time Control of a Game-Playing