nationalgeographic.co.id – NASA’s Mars rover attempts to discover scientific breakthroughs as it traverses the landscape the planet tuesday At the same time, the crew works plow Do whatever they can to protect them and the billions of dollars behind the mission. Where this scientific balance of risk and value drives decisions Robot Explorers go. What path they must take to get there, and the knowledge they must discover.
Researchers at the School of Computer Science’s (IR) Robotics Institute have developed a new approach to balancing the risks and scientific value of sending planetary explorers into dangerous situations.
David Wettergreen, a research professor in IR, and Alberto Candela, a Ph.D. In Robotics, now a data scientist at NASA’s Jet Propulsion Laboratory, will present her scientific work titled “An Approach to Science and Risk-Aware Planetary Rover Exploration” at the IEEE, RSJ International Conference on Robots and Intelligent Systems. month in Kyoto, Japan. This paper has also been published in the journal IEEE Robotics and Automation Letters.
“We looked at how to balance the risks associated with going to challenging places with the value you might find there,” said Wettergreen, who has worked on autonomous planetary exploration for decades at Carnegie Mellon University. “This is the next step in autonomous navigation, creating even better data to help scientists.”
For their approach, Wettergreen and Candela combined a model used to estimate the value of science with a model that estimates risk.
Scientific value is calculated using robotic confidence in the interpretation of rock mineral composition. If the robot believes it has correctly identified the rock without requiring further measurements, it can choose to explore a new location. However, if the robot’s confidence is low, it may decide to continue studying the current area and improve its mineralogical model. Zoe, an explorer who has been testing autonomous technology for decades, used an earlier version of the model during a 2019 experiment in the Nevada desert.
Carnegie Mellon University
This map shows possible routes planned using new modeling approaches to balance the risks of sending autonomous robots to new places or planets.
The researchers determined risk through a model that uses the terrain’s topography and the topography that makes up the terrain to estimate how difficult it would be for explorers to reach a given location. Loose sandy cliffs can damage rover missions—a real concern on Mars. In 2004, NASA landed its twin rovers Spirit and Opportunity on Mars. Spirit’s mission ended in 2009 when it got stuck in a sandbar and its wheels slipped while trying to move. Opportunity is up and running until 2018.
Wettergreen and Candela tested their framework using real Martian surface data. Using this data, the pair sent a simulated rover on Mars, mapping out different trajectories based on various risks. Then evaluate the knowledge gained from this task.
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