Reusable Interceptor Drones for Autonomous Drone Defense

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Solution Overview

Problem

Existing defensive systems are overwhelmed by the economic asymmetry and saturation/fatigue caused by numerous drones, leading to high costs and limited effectiveness against drone attacks.

Innovation Solution

A reusable flying device equipped with autonomous defense means, including sensors, control units, and various intercepting mechanisms, enabling efficient and cost-effective defense against multiple drones without human intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If expensive defensive weapons such as guided missiles are used, then the range and effectiveness against individual drones is improved, but the cost exceeds the cost of commercially available drones many times over

Engineering Contradiction:
Improvedefensive effectivenessVSAvoidcost
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent employs inexpensive interceptor drones that can be disposed of after a single use, contrasting with expensive guided missiles. These interceptor drones are designed to be cheap enough that their loss is economically acceptable, yet effective enough to neutralize target drones, thereby resolving the cost-effectiveness contradiction in drone defense.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The invention uses interceptor drones that replicate the flight characteristics and operational modes of the target drones they are designed to intercept. By copying the behavior patterns, speed, and maneuverability of commercial drones, the interceptors can effectively engage targets without requiring overly complex and expensive specialized weaponry.

Inventive Principle:
Principle #26Copying

2Quantity of substance

If cheaper countermeasures such as guns are used, then the cost is reduced, but the range is limited and line of sight must be maintained

Engineering Contradiction:
ImprovecostVSAvoidrange
Core Design Contradiction:
Quantity of substanceVSSpeed

Solution Approach 1:

The patent replaces traditional mechanical gun-based countermeasures with autonomous interceptor drones equipped with propulsion systems. This substitution enables the defense system to achieve much greater range and operational flexibility while maintaining cost-effectiveness, as the drones can fly to intercept positions beyond line-of-sight limits of ground-based guns.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If a large number of defensive resources are deployed to protect against saturation attacks, then the coverage area and defensive capability is improved, but the cost quickly exceeds the defender's available resources

Engineering Contradiction:
Improvedefensive coverageVSAvoidavailable resources
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The interceptor drones are equipped with autonomous navigation and target acquisition systems that enable them to independently seek out and engage target drones without requiring continuous human intervention or complex centralized control. This self-service capability allows multiple interceptors to operate simultaneously and independently, providing broad coverage against saturation attacks while minimizing the need for expensive human-operated defensive systems.

Inventive Principle:
Principle #25Self-service

4Extent of automation

If reusable flying devices with powerful sensors are used, then the autonomous detection and defense capability is improved, but the cost may increase

Engineering Contradiction:
Improveautonomous defense capabilityVSAvoidcost
Core Design Contradiction:
Extent of automationVSQuantity of substance

Solution Approach 1:

The interceptor drones are designed as multi-functional platforms that can perform multiple tasks: autonomous navigation, target detection using sensors, tracking, and interception. By consolidating these functions into a single reusable platform rather than using separate specialized systems, the overall cost is reduced while maintaining high autonomous defense capability. The sensors and control systems are integrated into a universal drone platform that can engage multiple targets sequentially.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4459218B1Reusable flying device for defending against single or multiple flying objects in a locally and/or temporally coordinated group
Publication Date: 2026.02.11 MBDA DEUTSCHIAND GMBH
  • EP4459218B1 patent drawingFigure 1
  • EP4459218B1 patent drawingFigure 2
  • EP4459218B1 patent drawing

AI summary

The present invention relates to a reusable flying device for the autonomous defense against a plurality of flying objects in a spatially and/or temporally coordinated network, comprising means for landing; a plurality of means for defense; and a control unit configured for: detecting one flying object of the plurality of flying objects as a target; and defending against the target with at least one of the plurality of means for defense.