Construction and testing are complete on the CADRE rovers, which will map the lunar surface together as a tech demo to show the promise of multirobot missions.
Part of NASA’s CADRE technology demonstration, three small rovers that will explore the Moon together show off their ability to drive as a team autonomously – without explicit commands from engineers – during a test in a clean room at the agency’s Jet Propulsion Laboratory in December 2023.Members of the CADRE assembly, test, launch, and operations team pose with completed hardware in a clean room at JPL in late January.
Engineers have put in long hours test-driving rovers and working out bugs to finish the hardware, get it through testing, and prepare it for integration with the lander.Clamped to a shaker table, one of NASA’s CADRE rovers gets shaken vigorously during a test in November 2023. This vibration test is designed to show that the rover can withstand the jarring rocket ride on its journey to the Moon aboard a lunar lander.
A CADRE rover is prepared for electromagnetic interference and compatibility testing in a special chamber at JPL in November 2023. Such testing confirms that the operation of the electronic subsystems do not interfere with each other nor with those on the lander.“This is what we submit our rovers to: ‘shake’ to simulate the rocket launch itself and ‘bake’ to simulate the extreme temperatures of space.
Two full-scale development model rovers are tested in JPL’s Mars Yard in August 2023 as part of NASA’s CADRE tech demo. These tests confirmed the project’s hardware and software can work together to accomplish key goals.The project conducted several drives at night under large flood lamps so the rovers could experience extreme shadows and lighting that approximate what they’ll encounter during the lunar daytime.
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