DAM Robotics Mars Rover

Poster Image
DAM Robotics Mars Rover Poster
Poster Session
B
Poster Number
06
Project Author(s)
Henry Dalrymple, Olivia Gehrke, Meira Griffel
Institution
Oregon State University
Project Description

The DAM Robotics Mars Rover team worked on five projects during the performance period, including a gripper, an IRIS board, drivetrain updates, a science mechanism, and software developments. The goal of the gripper is to create a reliable design that doesn’t get stuck in a closed position. The new design utilizes soft robotics principles to better grasp objects without bending fingers. This allowed for the gripping motion to become smoother and more reliable than the old gripper. The IRIS board is a hub for all of the rover’s RS485 communications, but is currently a central failure point. Spare boards were manufactured by new members to familiarize themselves with the system design for future replacement. The drivetrain team worked on a redesign of the rover’s wheel powertrain and suspension system. A new, drop-in brushless gearmotor has been designed and thermally characterized to replace the existing brushed gearmotors, reducing the weight by two-thirds, and toggleable suspension locks have been integrated to prevent tipping. An upgraded Nvidia Jetson enables low-latency H265 video encoding, allowing for smoother streams at higher quality. Furthermore, the increase of CUDA cores enables efficient integration of depth information for navigational use via RGB-to-depth. The result is vastly improved information pipelines for autonomous and teleoperation. Lastly, the science mechanism utilizes an auger and sample collection containers, similar to older models. This new version will have a small linear actuator to extend a humidity and temperature probe, a spectrometer, and biosignature dye in order to check the soil samples for life.

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