Munition Guidance System Add-On Kit

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Solution Overview

Problem

Conventional munition guidance systems are costly and technologically difficult to employ, requiring modification of the munition itself, and fail to accurately hit moving targets due to limitations in trajectory calculation and in-flight maneuvering.

Innovation Solution

A munition guidance system comprising a tubular enclosure with guidance wings, a processing and control unit, a target identification unit, and a GPS, which can be mounted as an add-on kit to existing munitions, allowing for erection and maneuvering of wings based on target identification and location data to accurately guide the munition during flight.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional guidance systems are used, then guidance capability is provided, but the system becomes costly and technologically difficult to employ requiring modification of the munition itself

Engineering Contradiction:
Improveguidance capabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

An adaptor device serves as an intermediary component that interfaces between the existing munition and the guidance system. The adaptor includes a connection element that attaches to the munition without requiring structural modifications to the munition itself, while providing mounting surfaces for the guidance system components.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The adaptor device is designed with universal compatibility to work with multiple types of munitions. The connection element can interface with various munition configurations, and the outer surface can accommodate different guidance system configurations, making the system adaptable without requiring custom modifications for each munition type.

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

2Measurement precision

If conventional guidance systems are used, then guidance capability is provided, but accurate hitting of moving targets fails due to limitations in trajectory calculation and in-flight maneuvering

Engineering Contradiction:
Improvetargeting accuracyVSAvoidtrajectory control
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The guidance system employs movable wings that can be dynamically adjusted during flight to alter the munition's trajectory. The wings can be rotated and positioned at different angles to provide real-time course correction, enabling the system to adapt to moving targets and improve hitting accuracy through active maneuvering control.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system uses GPS and inertial measurement units to continuously monitor the munition's location and flight parameters. This feedback information is processed by the control unit, which then adjusts the wing positions to correct deviations from the intended trajectory, enabling accurate tracking and interception of moving targets through closed-loop control.

Inventive Principle:
Principle #23Feedback

3Stability of the object's composition

If guidance wings are enclosed within the enclosure, then aerodynamic stability is maintained, but the wings cannot maneuver the munition during flight

Engineering Contradiction:
Improveaerodynamic stabilityVSAvoidin-flight maneuvering capability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The wings are designed to transition from an enclosed, stable configuration to an extended, maneuverable configuration. During flight, the wings can be rotated outward from the enclosure to provide aerodynamic surfaces for course correction, then returned to the enclosed position when maneuvering is complete, thus providing both stability and adaptability at different flight phases.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The wings are nested within the enclosure when not in use, maintaining a compact and aerodynamically stable profile. When maneuvering is required, the wings are deployed outward from the enclosure, allowing the system to transition between stable flight and active maneuvering modes while protecting the wings when not in operation.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP2734806B1Munition guidance system and method of assembling the same
Publication Date: 2018.02.14 ELBIT SYSTEMS LTD
  • EP2734806B1 patent drawingFigure 1~2
  • EP2734806B1 patent drawingFigure 3A~3B
  • EP2734806B1 patent drawingFigure 3C~3D

AI summary

A munition guidance system is disclosed. The system comprises a generally tubular enclosure, having an internal cavity adapted for receiving a munition, wherein an outer diameter of the enclosure is at most the largest outer diameter of the munition; and a processing and control unit enclosed within the enclosure and being configured for controlling guidance wings so as to maneuver the munition while flying.