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weed-stunning robot technology

Spot robot is configured to target and disable weeds using advanced blowtorch technology

robot technology

Collaboration and Development

Researchers and Institutions

Researchers from Texas A&M University, Mohamed Bin Zayed University of Artificial Intelligence, and Boston Dynamics have collaborated to configure a Boston Dynamics robot to detect and neutralize weeds with a small blowtorch. Their findings are detailed in a paper on the arXiv preprint server.

Technical Advancements in Robotics

Boston Dynamics, renowned for its quadruped robot Big Dog, has been enhancing the agility and processing power of its robots. Their latest creation, Spot features advanced agility, precise sensors, and AI capabilities. The research team has now leveraged these features to control weeds in agricultural fields.

Methodology and Implementation

Weed Identification and Neutralization

The research team has trained Spot to identify weeds within crop fields. Equipped with a propane tank mounted on its back to fuel a blowtorch attached to its arm, Spot roams the fields, locating and neutralizing weeds. Rather than incinerating them, the blowtorch heats the weed's core, inhibiting its growth for several weeks.

Fuel Efficiency and Selective Heating

This method is preferred over completely eradicating the weeds, as doing so would necessitate excessive fuel consumption, leading to frequent refueling of the robot. The researchers discovered that a brief application of heat to the weed's core is sufficient to inhibit its growth for several weeks.

According to the team, integrating robots with blowtorches for weed management may lead to a substantial reduction in herbicide usage on agricultural fields.

Field Testing and Results

Field Trials and Performance

The research team conducted tests with Spot on a cotton field in Texas, targeting specific weed species, including the common sunflower and giant ragweed. Over five trials, the robot demonstrated both accuracy and efficiency.

Challenges and Considerations

However, battery life reamins an issue, as Spot could only operate for 40 minutes per session.

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