Capacitive Security Envelope with Self-Adhesive Conductive Tracks
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Solution Overview
Problem
Existing security devices for monitoring object accessibility during transfer and storage are complex, expensive, prone to electrical malfunctions, and lack versatility in accommodating objects of varying dimensions.
Innovation Solution
A flexible security device featuring a conductive fabric envelope with self-adhesive conductive tracks that form a capacitor, allowing for capacitive monitoring of the envelope's opening and closure, integrated with RF communication for remote surveillance and robust construction for harsh environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional security devices with multiple electrical connections are used, then monitoring functionality is achieved, but device complexity and risk of electrical malfunction increase
Solution Approach 1:
The patent extracts the adhesive function from separate electrical connections and integrates it directly into the conductive tracks themselves. The conductive tracks are provided with self-adhesive properties, eliminating the need for separate adhesive layers or additional electrical connections, thereby reducing complexity and potential failure points.
Solution Approach 2:
The patent merges multiple functions into the conductive tracks: electrical conduction, adhesion, and positioning. By combining the adhesive function with the electrical conductive function in a single integrated component, the device reduces the number of separate elements and connections required.
2Adaptability or versatility
If fixed-dimensional security envelopes are used, then manufacturing is simplified, but adaptability to different object sizes is reduced
Solution Approach 1:
The patent introduces dynamic, flexible conductive tracks that can be adapted to different envelope shapes and sizes. The tracks are designed to conform to various geometries while maintaining their self-adhesive properties, allowing the same manufacturing process to produce envelopes of different dimensions.
Solution Approach 2:
The self-adhesive conductive track design creates a universal component that can be applied to envelopes of various sizes and shapes. The same track design and attachment method works across different product variants, maintaining manufacturing simplicity while achieving versatility.
3Strength
If conductive tracks without self-adhesive properties are used, then electrical conductivity is maintained, but closure reliability and resistance to opening is reduced
Solution Approach 1:
The patent combines the adhesive function with the electrical conductive function in a single integrated component. The conductive tracks themselves possess self-adhesive properties, eliminating the need for separate adhesive layers and reducing overall device complexity while improving closure reliability.
Solution Approach 2:
The conductive tracks are designed to be self-adhesive, meaning they possess their own adhesion capability without requiring external adhesive materials. This self-service approach allows the tracks to securely attach to the envelope surface while maintaining electrical conductivity, reducing complexity and improving reliability.
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 solution provides reliable, cost-effective, and versatile monitoring of object accessibility with reduced electrical connections, capable of accommodating various object sizes and ensuring secure tracking through capacitive detection and remote communication, while withstanding harsh conditions.
Implementation Method 1
at least one of which is provided with at least one layer self-adhesive conductive track
Implementation Method 2
acting by a capacitive effect generated by the contact of two tracks facing each other
Data Source
Figure 1~2
Figure 3~4B
Figure 5~6
AI summary
The device has a flexible envelope (1) with a mesh (2) made of a flexible high resistant plastic wire and a flexible conductor wire that is surrounded by a flexible insulating sleeve. Closing units (6) close an opening (5) of the envelope, and have opposite conductor tracks. Control units control the continuity of the conductor wire and position change of the tracks, and act under capacitive effect generated by the contact of the tracks. A flexible resistant layer (12) e.g. thick paper or plastic layer, is applied on an external surface of the mesh.