Variable Electrical Shield Patterns for Tamper-Evident Containers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RFID tags in shipping containers do not guarantee the authenticity of contents, as they only verify the integrity of the container but not the authenticity of the goods inside, making them vulnerable to counterfeit substitution during transit.
Innovation Solution
An Electrical Shield is applied to the interior of containers, comprising a variable conductive pattern on a substrate, which forms a unique resistance network, and is monitored by electronics to detect tampering and provide a unique signature for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID tags are used to verify container integrity, then container security is improved, but content authenticity verification capability is lost
Solution Approach 1:
The solution divides the security verification into two separate components: RFID tags for container integrity verification and Electrical Shields for content authenticity verification. This segmentation allows each component to specialize in its specific function, with the Electrical Shield's variable conductive pattern providing unique authentication for the contents while RFID maintains container security.
Solution Approach 2:
The Electrical Shield acts as an intermediary element placed between the container and its contents. This intermediate layer with its variable conductive pattern provides an additional verification mechanism that bridges the gap between container integrity checking and content authenticity verification, allowing both functions to coexist.
2Ease of manufacture
If a fixed conductive pattern is used in the Electrical Shield, then manufacturing simplicity is improved, but tamper resistance is worsened
Solution Approach 1:
The conductive pattern transitions from a static, fixed design to a dynamic, variable pattern that changes for each Electrical Shield. This variability is achieved through automated generation algorithms that create unique patterns based on parameters like container ID, content type, and production batch, making each shield distinctive and resistant to tampering while remaining manufacturable through automated processes.
Solution Approach 2:
The invention changes the parameter of pattern variability from fixed to variable by introducing multiple generation parameters (container ID, content type, batch number, random seeds). These parameter changes enable each Electrical Shield to have a unique conductive pattern without complicating the manufacturing process, as the variability is generated automatically rather than requiring manual customization.
3Reliability
If variable conductive patterns are generated for each Electrical Shield, then tamper detection capability is improved, but manufacturing complexity is worsened
Solution Approach 1:
The invention replaces complex manual or mechanical pattern creation processes with automated electronic generation and printing systems. Computer algorithms generate the variable conductive patterns, which are then directly printed or applied to the Electrical Shield substrate, eliminating the need for complex manual routing or assembly while maintaining high tamper detection capability through pattern variability.
Solution Approach 2:
By changing the manufacturing approach from fixed patterns to parameter-driven variable patterns, the system uses automated generation based on input parameters (container ID, content type, batch number). This parameter-based approach simplifies the manufacturing process compared to manual customization, as the complexity is managed through software algorithms rather than physical manufacturing steps.
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 Electrical Shield effectively prevents tampering and ensures the authenticity of goods by detecting any alterations to the container, providing a secure and tamper-evident protection system.
Implementation Method 1
The pattern can be printed using carbon inks, or commonly used conductive inks or a semiconductor material... forms a unique resistance network
Data Source
AI summary
The disclosed embodiments provide a method for tamper-evident shipment or storage of goods. An Electrical Shield pattern is embedded in or printed on a substrate with other electrical, optical, and electronic components, communication components, semiconductors, which are attached or printed on a substrate to form a shipment bag used as a shipping container. The shield pattern can be made variable between different bags by using algorithms entered into a printer control system. The shipment bag with its components can then be assigned a unique signature which differentiates each bag. Application of encryption methods serves to guarantee the shipped goods are authentic and that were not tampered with during shipment. Digital signal processing is used to generate pedigree information, which may include items such as shipping location, serial numbers, sensor information, and lot numbers for the goods. The information related to the history of tampering attempts and other sensor status can be placed in encrypted form in an RFID tags or control or monitoring electronics which can be read by a mobile phone application or sent to a remote cloud-based server.