Embedded Stress Sensors for Tamper-Resistant Packaging

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Solution Overview

Problem

Existing methods for preventing package tampering, such as labeling or tagging, are ineffective as they can be lost, stolen, or duplicated, and do not ensure the integrity of sensitive items during shipping through intermediaries.

Innovation Solution

A system using smart packaging with built-in stress sensors that generate a unique digital fingerprint, allowing for non-invasive detection of tampering by comparing stress values before and after transit, ensuring the package's integrity without opening it.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If labeling or tagging techniques (bar codes, RFID tags) are used on the outside of a package, then identification and tracking are improved, but security against tampering and loss deteriorates because these labels can be lost, stolen, or duplicated

Engineering Contradiction:

Improvepackage identification integrityVSAvoidtampering detection reliability

Core Design Contradiction:

Loss of informationVSReliability

Solution Approach 1:

The sensing component is embedded within the packaging element itself, creating a nested structure where the sensor is contained inside the packaging material. This nesting ensures the sensor cannot be easily removed or tampered with, as it is integrated into the packaging structure rather than being a separate attachable label or tag.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The packaging element acts as an intermediary between the packaged item and the external environment. By embedding the sensing component within this intermediary layer, the system provides indirect monitoring of the packaged item's condition and position, while protecting the sensitive sensor from direct exposure to tampering risks.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If external labels and tags are placed on packages, then tracking capability is improved, but security and integrity verification deteriorate because external labels can be removed or altered without detection

Engineering Contradiction:

Improvetracking information availabilityVSAvoidpackage integrity compromise

Core Design Contradiction:

Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The tracking and sensing functions are merged into a single integrated component embedded within the packaging element. This combination eliminates the need for separate external labels and tags, as the embedded sensor simultaneously provides both structural integrity monitoring and tracking capabilities through its embedded position and stress sensing functions.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The sensing component is nested within the packaging element structure, creating a hierarchical integration where the sensor is contained inside the packaging material. This nesting ensures the sensor cannot be easily removed or tampered with, as it is an integral part of the packaging structure rather than a separate attachable component.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If packaging elements with embedded stress sensors are used, then tampering detection capability is improved, but device complexity and manufacturing cost increase

Engineering Contradiction:

Improvetampering detection accuracyVSAvoidpackaging system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The packaging element with embedded stress sensor serves multiple functions simultaneously: it provides structural protection for the packaged item, monitors stress and deformation, tracks position through stress pattern changes, and detects tampering attempts. This self-service capability eliminates the need for separate external monitoring devices, reducing overall system complexity despite the embedded sensor integration.

Inventive Principle:

Principle #25Self-service

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

Effectively detects tampering by generating and comparing unique digital fingerprints based on stress values, providing assurance of the package's integrity and preventing delays in the supply chain.

Implementation Method 1

each of the plurality of packaging elements comprises a sensing component comprising a stress sensor

Methodology Applied

Scientific EffectPiezoresistive effect: Piezoresistive Effect

Data Source

PatentUS10395078B1Digital fingerprint generation using sensor embedded packaging elements

Publication Date: 2019.08.27 INTERNATIONAL BUSINESS MACHINE CORPORATION

AI summary

A method for detecting package tampering, comprising performing scanning of a container comprising a packaged item and a plurality of packaging elements surrounding the packaged item, wherein each of the plurality of packaging elements comprises a sensing component comprising a stress sensor, determining a stress on each of the plurality of packaging elements surrounding the packaged item from the scanning, and generating an output indicating the stress on each of the plurality of packaging elements surrounding the packaged item.