NTT has developed a drone that can trigger and guide lightning, offering a new way to help protect cities and infrastructure from lightning damage.
Photo source:
jpost
Researchers at NTT have
conducted a test using a drone to trigger and guide a lightning strike during
natural storm conditions. The experiment is the first known case of using an
unmanned aerial device for this purpose and contributes to ongoing research
into lightning safety and control.
Lightning remains difficult to predict and
manage. Strikes can damage buildings, power systems, and communication
networks, and they can pose risks to public safety. Methods that help guide
lightning may support improved protection strategies in storm-prone regions.
The system uses a specially designed drone
equipped with sensors that monitor changes in the atmospheric electric field.
When the electric field reaches conditions associated with an incoming strike,
the drone can help initiate a discharge and guide its path toward a selected
location.
A protective cage surrounds the drone to reduce
the risk of equipment damage if a strike occurs. The protective design may also
be adapted for other drone platforms, allowing the concept to be tested in
different operational settings.
Lightning‑guiding drones could be used to
support the protection of infrastructure such as power facilities,
communication towers, airports, and wind farms. By directing lightning toward
designated safe zones, the likelihood of strikes affecting critical systems may
be reduced.
In regions that experience frequent storms,
drones could be deployed during severe weather periods to help manage where
strikes occur. This approach could contribute to reducing service
interruptions, equipment damage, and safety risks.
Further testing is planned to evaluate the
system under a wider range of weather conditions. Ongoing work focuses on
improving operational stability, refining deployment methods, and assessing how
the technology could be used in real‑world safety applications.
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