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Autonomous drone inspection: AI enables, for the first time, customers to perform independent automated drone inspections. An international patent-protected technology for visual inspection and contactless lightning protection measurement for on- and offshore wind turbines.

Patent grant calibration flight

The TOPseven technology for visual detection of reference data of an object received the German patent (DE 10 2020 210 618) in March 2022.
Using a visual method developed by TOPseven, it is possible to capture the essential characteristics of a wind turbine using a reference flight within a few minutes. Based on this data, a specific model is generated automatically with the help of artificial intelligence, enabling an autonomous flight at the turbine.

Damage prevention

Optimal prevention of damage to wind turbines succeeds with the use of modern monitoring systems and innovative inspection technologies. Maintenance operations can be planned, unscheduled downtimes are reduced and maintenance costs are lowered.

Risks for wind turbines

The transport and assembly of wind turbines is associated with many risks, but defective components or forces of nature can also pose hazards. To prevent them, some preventive measures can be taken.

The future is electric

An important step in CO2 reduction is the use of electric mobility: emissions are reduced, the air we breathe becomes cleaner and the quality-of-life increases. Germany wants to be one of the pioneers in the field of electric cars and is making effort in achieving this through supporting programs. If the use of e-mobility is to be sustainable, energy from renewable resources must be used for the electricity required.

TOPseven TUEV SUED Validated and Verified

Contactless lightning protection measurement

Validated and Verified by TÜV SÜD

TÜV SÜD’s independent validation and verification confirmed that the measurement system is suitable as an alternative test method for the section of a WT’s lightning protection system extending from the receptors (lightning arrestors) to the blade flanges of the rotor blades in accordance with the Technical Guideline of the German Wind Energy Association.


Drone-based Inspection


Drones are increasingly being used as an alternative for the inspection of wind turbines. TOPseven’s AI takes the technology to the next level: The autonomous drone inspections document damages and identifies possible defects in the lightning protection system.


Independent use of fully autonomous drones by the customer, without specialized pilots.

Due to the independent monitoring via AI the customer doesn’t require a specialized pilot for the autonomous drone inspection. Thus, the customer needs a minimum training to get started.

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Industry standard reporting with complete and reproducible images.

The AI controlled camera delivers continues, high-quality images with seamless overlapping.

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Autonomous drone based inspection only requires a single stop of the wind turbine.

For the visual inspection of all blades and the tower, as well as the contactless measurement of the lightning protection, the wind turbine only needs to be stopped once.

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Possible defects are being identified and located by special contactless sensors.

In only a few minutes the TOPseven drone checks the lightning protection of the system - contactless. Special sensors detect the defect and can exactly localize the interruption.

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Technische Dokumentation

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