Collapsible Faraday Cage Pouch for Key Fob Signal Blocking
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Solution Overview
Problem
Current RF-shielding containers for electronic devices, particularly key fobs, are cumbersome and lack a lockable, compact design that allows for constant carry and protection against hacking attempts such as relay and replay attacks.
Innovation Solution
A reversible collapsible security pouch with a Faraday cage integrated into the design, featuring stretchable wrapping loops for compact attachment to key fobs and optional lockable closure to secure devices, blocking a wide range of electromagnetic frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a faraday cage is integrated into a container for RF shielding, then protection against electronic signal hacking is improved, but the container becomes cumbersome and inconvenient to carry
Solution Approach 1:
The pouch is designed to be collapsible, transitioning from an expanded protective state to a compressed portable state. The flexible Faraday cage structure allows it to be collapsed into a compact form that can fit inside key fobs, making it dynamically adaptable between protection and portability modes.
Solution Approach 2:
The collapsible pouch is designed to nest within itself when collapsed, with the Faraday cage structure compressing into a compact form that can fit inside the key fob itself. This nesting approach minimizes the carrying footprint while maintaining the protective enclosure when deployed.
2Ease of operation
If a faraday cage pouch is made small enough to attach to key fob, then portability is improved, but the pouch may not provide sufficient protection or locking capability
Solution Approach 1:
The Faraday cage is constructed using flexible conductive materials that can be formed into thin, adaptable shielding layers. This allows the pouch to maintain electromagnetic protection while being thin and flexible enough to collapse into a compact form that attaches to key fobs without compromising the protective enclosure.
Solution Approach 2:
The pouch incorporates a dynamic locking mechanism that can secure the opening when the pouch is expanded and in use, providing adequate protection and locking capability in a small form factor that attaches to the key fob.
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 pouch provides convenient, constant protection for key fobs and other devices by being compact and attachable, while preventing signal transmission and reception, thus thwarting hacking attempts and ensuring secure storage.
Implementation Method 1
A Faraday cage is an enclosure comprising a series of thin conductive filaments. These filaments are generally made of copper, but could also be made from silver, nickel, galvanized zinc, iron, aluminum, stainless steel or a combination of other conductive material or composite.
Implementation Method 2
A Faraday cage operates because an external electrical field causes the electric charges within the cage's conducting material to be distributed so that they cancel the field's effect in the cage's interior.
Data Source
AI summary
A Reversible Collapsible Security Pouch for Electronic Devices. The Pouch is provided in a variety of different configurations, and further are designed to accommodate a variety of different items. A key-fob-accommodating version is small enough to be attachable to the key fob when in a compacted condition so that it can always be attached to the key fob. The key fob version includes a pair of stretchable wrapping loops that allows the user to roll the pouch into a compact roll and then secure it in the rolled condition using one of the wrapping loops. In some larger pouch versions, there may be closure buttons around which a wrapping loop could be wrapped to secure the closure of the pouch. Other versions may include the ability to close and lock the pouch to secure the encapsulated device. All versions include a Faraday cage integrated into the pouch assembly.