Bioinspired Whisker Sensor for 3D Mapping of Underground Mining Environments.

Area of Science:

• Robotics
• Biomimetics
• Sensor Technology

Background:

• Traditional sensors struggle in unstructured environments like mines due to dust, darkness, and poor communication.
• Naked mole rats navigate subterranean spaces using tactile sensing, offering inspiration for robotic solutions.

Purpose of the Study:

• To develop and validate a novel whisker-sensing disk for 3D mapping in challenging, unstructured environments.
• To investigate biomimetic approaches for robotic navigation in subterranean settings.

Main Methods:

• Designed a whisker-sensing disk with 32 flexible rod sensors and 3D Hall-effect sensors.
• Modeled whisker sensor rotation using analytical and data-driven approaches based on magnetic field data.
• Validated models by comparing data from multiple whisker sensors.

Main Results:

• Demonstrated the whisker disk's effectiveness in performing 3D mapping tasks.
• Successfully implemented the sensor on various robotic platforms.
• Validated both analytical and data-driven sensor models.

Conclusions:

• The developed whisker-sensing disk is a viable solution for 3D mapping in complex subterranean environments.
• Biomimetic tactile sensing offers a promising avenue for robotic navigation in challenging conditions.
• The sensor has significant potential for applications in mining and other unstructured settings.