Autonomous Science Technologies for a Mars Rover

This paper presents an architecture and a set of technology for performing autonomous science and commanding for a planetary rover. The MER rovers have outperformed all expectations by lasting over 1100 sols (or Martian days), which is an order of magnitude longer than their original mission goal. The longevity of these vehicles will have significant effects on future mission goals, such as objectives for the Mars Science Laboratory rover mission (scheduled to fly in 2009) and the Astrobiology Field Lab rover mission (scheduled to potentially fly in 2016). Common objectives for future rover missions to Mars include the handling of opportunistic science, long-range or multi-sol driving, and onboard fault diagnosis and recovery. To handle these goals, a number of new technologies have been developed and integrated as part of the CLARAty architecture. CLARAty is a unified and reusable robotic architecture that was designed to simplify the integration, testing and maturation of robotic technologies for future missions. This paper focuses on technology comprising the CLARAty Decision Layer, which was designed to support and validate high-level autonomy technologies, such as automated planning and scheduling and onboard data analysis. *

[1]  Tara Estlin,et al.  Rover traverse science for increased mission science return , 2003, 2003 IEEE Aerospace Conference Proceedings (Cat. No.03TH8652).

[2]  R. Castano,et al.  Opportunistic rover science: finding and reacting to rocks, clouds and dust devils , 2006, 2006 IEEE Aerospace Conference.

[3]  Reid G. Simmons,et al.  A task description language for robot control , 1998, Proceedings. 1998 IEEE/RSJ International Conference on Intelligent Robots and Systems. Innovations in Theory, Practice and Applications (Cat. No.98CH36190).

[4]  Tara A. Estlin,et al.  Increased Mars Rover Autonomy using AI Planning, Scheduling and Execution , 2007, Proceedings 2007 IEEE International Conference on Robotics and Automation.

[5]  Mark W. Powell,et al.  Mars Exploration Rover Operations with the Science Activity Planner , 2005, Proceedings of the 2005 IEEE International Conference on Robotics and Automation.

[6]  Tara Estlin,et al.  CLARAty: Challenges and Steps toward Reusable Robotic Software , 2006 .