Package Disconnection Detection Using Cut-Wire Wireless Signals
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Solution Overview
Problem
Existing technologies face challenges in reliably sensing the opening of individually separated receiving cavities in packages, such as blister packs, due to wire disconnection issues and high costs, leading to decreased reliability and increased costs, especially when handling packages containing pharmaceuticals.
Innovation Solution
A package design with a conducting wire and wireless communication device on a substrate that transmits distinct signals before and after the wire is cut, allowing reliable detection of cavity item removal and package opening, even when separated into individual cavities, while reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wires are attached separately to each receiving cavity for sensing opening, then opening detection capability is improved, but wire disconnection risk increases due to thinner wires and more connection points
Solution Approach 1:
The package is divided into multiple separable receiving cavities, each with its own wireless communication device for independent opening detection. This segmentation allows each cavity to be monitored individually while using robust wireless technology instead of fragile thin wires.
Solution Approach 2:
The mechanical wire-based detection system is replaced with a wireless communication system. Instead of using physical wires that connect to sensing points, each receiving cavity incorporates a wireless communication device that transmits signals independently, eliminating the mechanical connection reliability issues.
2Measurement precision
If a larger number of wires are used in packages with more receiving cavities, then opening detection coverage is improved, but wire thickness must be reduced and disconnection probability increases
Solution Approach 1:
The package system is segmented into multiple independent units, with each receiving cavity having its own wireless communication device. This eliminates the need for extensive wire networks while maintaining comprehensive detection coverage across all cavities.
Solution Approach 2:
The extensive mechanical wire infrastructure is replaced with wireless communication devices distributed across each receiving cavity. This substitution eliminates wire thickness limitations and disconnection risks while achieving complete detection coverage.
3Measurement precision
If wireless communication devices are attached to each receiving cavity for individual sensing, then opening detection accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The package is segmented into multiple receiving cavities, each equipped with a wireless communication device for individual opening detection. This segmentation enables precise tracking of each cavity while maintaining cost-effectiveness through standardized modular components.
Solution Approach 2:
The wireless communication device replaces complex wire-based sensing mechanisms, simplifying the overall system architecture. Although individual devices are used in each cavity, the elimination of extensive wiring infrastructure and the use of integrated wireless modules actually reduce overall manufacturing complexity and cost.
4Ease of operation
If packages are separated into individual receiving cavities for easy carrying, then portability is improved, but connection between wireless communication device and sensing wires is lost
Solution Approach 1:
The package is designed as a collection of separable receiving cavities, each with its own wireless communication device. This segmentation allows the cavities to be easily separated and carried independently while maintaining full sensing functionality in each unit.
Solution Approach 2:
The mechanical wire connection system is replaced with self-contained wireless communication devices in each receiving cavity. This substitution eliminates the need for physical connections between cavities and the central sensing system, enabling easy separation and portability while preserving detection capability.
Data Source
Figure 1A~1C
Figure 2A~2B
Figure 3A~3B
AI summary
A package in an aspect of the present invention includes: a package body having a receiving cavity for receiving a cavity item; a sheet for sealing the receiving cavity; a conducting wire formed on the sheet so as to pass above the sealed opening portion of the receiving cavity; and a wireless communication device formed on the sheet so as to be connected to the conducting wire. The wireless communication device transmits a signal including information which differs between before and after the conducting wire together with the sheet is cut as a result of opening the receiving cavity. The information transmitted from the wireless communication device is read by a reader. The package and the reader are used for a cavity item management system.