Active Multi-Spectral Camouflage via Dielectric Heating
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Solution Overview
Problem
Conventional infrared camouflage methods, such as thermal suits and bulky heating/cooling plates, are ineffective in reducing the thermal contrast between objects and backgrounds in infrared images, limiting their flexibility and increasing detection risks in low-light environments.
Innovation Solution
An active multi-spectral system that uses transmitters to create localized heating in objects based on their moisture content, generating thermal radiation patterns to reduce contrast between targets and backgrounds, thereby enhancing camouflage effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If thermal suits are used for infrared camouflage, then thermal signature is reduced, but flexibility of movement is reduced and body temperature rises to uncomfortable levels
Solution Approach 1:
The patent replaces mechanical thermal suits with an electromagnetic field-based system. Transmitters emit electromagnetic energy that is absorbed by moisture in the background, creating thermal patterns without requiring physical contact with the target person. This substitution eliminates the mechanical constraints of thermal suits while achieving thermal camouflage through field-based energy transfer.
Solution Approach 2:
The patent introduces moisture in the background as an intermediary medium. Instead of directly heating or cooling the person, the system uses electromagnetic energy to heat moisture in the background, which then creates thermal patterns that camouflage the person. This intermediary approach allows thermal camouflage without direct thermal contact, maintaining flexibility while reducing thermal signature.
2Object-affected harmful factors
If thermal suits are used for infrared camouflage, then thermal signature is reduced, but the person's body temperature rises to dangerous levels
Solution Approach 1:
The patent replaces the mechanical thermal suit that directly contacts the body with an electromagnetic field-based system. The transmitters emit energy that interacts with background moisture rather than the person's body, creating thermal patterns externally without adding heat to the person's body. This substitution resolves the contradiction by achieving thermal camouflage while avoiding body temperature increase.
Solution Approach 2:
The patent converts the harmful effect of electromagnetic energy heating into a beneficial camouflage effect. By directing energy at background moisture rather than the person, the system creates thermal patterns that mask the person's thermal signature. The energy that would otherwise be wasted or harmful is converted into a beneficial camouflage mechanism that protects rather than harms.
3Object-affected harmful factors
If heating or cooling plates are mounted on objects for infrared camouflage, then thermal contrast is reduced, but the system becomes bulky and costly
Solution Approach 1:
The patent replaces heavy mechanical heating or cooling plates with lightweight electromagnetic transmitters. The transmitters emit energy that creates thermal patterns in the background without requiring direct thermal contact with the object. This substitution dramatically reduces weight while maintaining thermal camouflage effectiveness, as the energy transfer occurs through electromagnetic fields rather than mechanical thermal contact.
Solution Approach 2:
The patent extracts the thermal camouflage function from the object itself and relocates it to the background environment. Instead of modifying the object with heavy plates, the system emits energy that creates thermal patterns in the surrounding moisture, effectively removing the camouflage equipment from the object and placing it in the environment. This extraction eliminates the weight burden while preserving the camouflage effect.
4Object-affected harmful factors
If heating or cooling plates are mounted on objects for infrared camouflage, then thermal contrast is reduced, but the system becomes costly and difficult to implement
Solution Approach 1:
The patent replaces complex mechanical heating or cooling plate systems with simpler electromagnetic transmitters. The transmitters use electromagnetic fields to create thermal patterns without requiring mechanical thermal contact, complex thermal management systems, or dedicated infrastructure. This substitution simplifies the overall system architecture while maintaining thermal camouflage effectiveness.
Solution Approach 2:
The patent creates a universal camouflage system that can be applied to any object or person without customization. The transmitters emit electromagnetic energy that interacts with background moisture in a general manner, creating thermal patterns that camouflage any target within the beam path. This universality eliminates the need for object-specific designs and complex implementation procedures, making the system easier to deploy across different applications.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces the visibility of targets in infrared images by increasing the thermal clutter of the background, allowing for more flexible and safer operations without the need for bulky camouflage equipment, and can be adapted for various environments and applications.
Implementation Method 1
at least one transmitter configured to transmit wireless signals that create different localized heating in different portions of a scene. The different localized heating in the different portions of the scene is based on different moisture or liquid content within objects in the scene.
Implementation Method 2
at least one controller configured to control the at least one transmitter in order to control the different localized heating in the different portions of the scene and to create a desired thermal radiation pattern in the scene.
Data Source
AI summary
An apparatus includes at least one transmitter configured to transmit wireless signals that create different localized heating in different portions of a scene. The different localized heating in the different portions of the scene is based on different moisture or liquid content within objects in the scene. The apparatus also includes at least one controller configured to control the at least one transmitter in order to control the different localized heating in the different portions of the scene and to create a desired thermal radiation pattern in the scene. The desired thermal radiation pattern in the scene may include a camouflage pattern that increases clutter in an infrared image, at least one temporary infrared marker, or at least one false shape in an infrared image. The desired thermal radiation pattern could reduce a contrast between a cold infrared background in the scene and one or more targets in the scene.