Professor Kojiro Iizuka and Dr. Kohei Inaba, from SIT's Department of Machinery and Control Systems of the College of Systems Engineering and Science, have drawn from biological principles to develop this novel system. "Our inspiration came from how humans detect their own traveling state based on muscle tension while walking. We aimed to develop a similar system that recognizes the traveling state based on the chassis shape deformation," Prof. Iizuka elucidates.
The traditional methods of slip detection in rovers, which heavily rely on visual data, often fall short in differentiating between varied terrain features. This limitation can result in the inability to distinguish rocks from loose sand, thus posing a risk to the rover's mission. To overcome this, the SIT research team focused on mimicking the way human muscles-specifically nuclear chain fibers and nuclear bag fibers-work in detecting body movement and posture.
The novel system introduced by SIT categorizes the changes in the shape of a rover's chassis, manifested as strain, into two types: displacement of strain and vibrational change in strain. By analyzing the strain displacement through a method akin to nuclear chain fibers analysis, and the strain velocity resembling nuclear bag fibers analysis, the system can effectively determine the rover's traveling state.
This method allows for the detection of vertical and motion-directional forces acting on the rover, as changes in strain directly correlate to these forces. "Monitoring strain changes can enable the detection of force alterations, ultimately indicating the rover's traveling state," Prof. Iizuka adds. Furthermore, the rate of strain change, analyzed through the nuclear bag fiber analogy, provides valuable data on the level of slippage and necessary adjustments in the rover's travel state.
In addition to enhancing mobility, the system also boasts the capability to detect environmental obstacles like rocks and stones, further improving the safety and efficiency of rover operations. Prof. Iizuka highlights the broader implications of this research: "During rover route planning, the experiences from this study should be considered to ensure that the rovers can travel safely. These findings represent the first step towards incorporating elements of biological functionality in sensing moving objects. We believe that our approach will also be effective for unmanned aerial vehicles and automatic driving in the future."
Published in Volume 15, Issue 17 of the journal Remote Sensing on August 30, 2023, this study not only marks a significant step in enhancing the safety and effectiveness of rover missions but also opens new avenues for advancements in various fields of unmanned vehicle technology. As planetary exploration continues to evolve, such innovative approaches will be crucial in unraveling the mysteries of our solar system and beyond.
|Subscribe Free To Our Daily Newsletters|
Big bang: Dutch firm eyes space baby
Cosmic currents: Preserving water quality for astronauts during space exploration
AI-Powered Space Situational Awareness Boosted by Neuraspace-Deimos Collaboration
Lost in space: $100,000 tool bag from NASA spacewalk
SpaceX Starship disintegrates after successful stage separation
Progress in Starship test launch, but ship and booster explode
SpaceX poised for second launch of mega Starship rocket
SpaceX 'Starship' launch postponed until Saturday
The Long Wait
Here Comes the Sun: Perseverance Readies for Solar Conjunction
AI Chemist creates Mars-compatible oxygen catalyst from meteorites
China develops 'GoMars' Model for enhanced Mars mission planning
New scientific experimental samples from China's space station return to Earth
Shenzhou XVI crew return after 'very cool journey'
Chinese astronauts return to Earth with fruitful experimental results
Chinese astronauts return to Earth after 'successful' mission
Amazon's Project Kuiper completes successful tests of broadband connectivity|
EBAD's NEA Payload Release Modules prove crucial in SpaceX Transporter-9 mission
A third pair of SES' O3b mPower satellites launches from Cape Canaveral
SpaceX Launches Planet Lab's Pelican-1 and SuperDoves
NASA's Deep Space Optical Comm Demo Sends, Receives First Data
Japan PM says experts to talk in China seafood row
Rice researcher scans tropical forest with mixed-reality device
ILLUMA-T launches to the International Space Station
Webb detects water vapor, sulfur dioxide and sand clouds in the atmosphere of a nearby exoplanet
Webb follows neon signs toward new thinking on planet formation
Supporting the search for alien life by exploring geologic faulting on icy moons
NASA data reveals possible reason some exoplanets are shrinking
Juice burns hard towards first-ever Earth-Moon flyby
Fall into an ice giant's atmosphere
Juno finds Jupiter's winds penetrate in cylindrical layers
Salts and organics observed on Ganymede's surface by June
|Subscribe Free To Our Daily Newsletters|