Sensor-Augmented 2D Barcode with Dynamic Environmental Data
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Solution Overview
Problem
Current barcode technologies, particularly two-dimensional (2D) barcodes, lack the ability to dynamically monitor environmental conditions such as temperature, time, and exposure to radiation, which is crucial for applications like pharmaceuticals and food products, and they do not efficiently integrate environmental data into their encoding.
Innovation Solution
A sensor-augmented two-dimensional barcode system that includes a substrate with a sensor dye region that changes color in response to environmental conditions, allowing for continuous chemical or physical state changes, and a two-dimensional error-correcting barcode symbol, enabling the integration of dynamic environmental data into the barcode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional 2D barcode technology is used, then space efficiency and data capacity are improved, but the ability to monitor environmental conditions is lost
Solution Approach 1:
The patent merges traditional 2D barcode functionality with environmental sensing capabilities by integrating sensor dye regions directly into the barcode structure. The sensor-augmented barcode combines static barcode modules with dynamic sensor regions that change color in response to environmental conditions, allowing simultaneous encoding of product identification and environmental exposure data within a single visual symbol.
Solution Approach 2:
The barcode system achieves multi-functionality by enabling a single visual symbol to serve multiple purposes: product identification through traditional barcode decoding, environmental condition monitoring through color changes, and dynamic data representation. The sensor-augmented barcode can simultaneously provide static product information and dynamic environmental exposure history.
2Adaptability or versatility
If sensor dye regions are added to the barcode, then environmental monitoring capability is improved, but barcode readability and error correction are worsened
Solution Approach 1:
The barcode is segmented into distinct functional regions: static barcode modules that maintain permanent color states for reliable decoding, and dynamic sensor dye regions that change color in response to environmental conditions. This segmentation allows the static portions to preserve traditional barcode readability while the dynamic portions provide environmental monitoring capabilities.
Solution Approach 2:
Different regions of the barcode are assigned different properties: static modules use permanent color states (black/white) optimized for machine reading, while sensor regions use environmentally responsive color changes. This local differentiation ensures that the static barcode portions maintain high readability and error correction performance, while sensor portions provide environmental data without interfering with overall system function.
3Measurement precision
If continuous color state changes are implemented, then environmental data accuracy is improved, but manufacturing complexity is worsened
Solution Approach 1:
The sensor dye chemistry is designed to undergo continuous parameter changes in response to environmental conditions, specifically continuous color state transitions that reflect cumulative environmental exposure. This continuous change provides high measurement precision for environmental monitoring while the chemistry itself handles the complexity of continuous state management.
Solution Approach 2:
The patent replaces complex mechanical or electronic continuous monitoring systems with a chemical-based sensor dye system that naturally undergoes continuous color changes in response to environmental conditions. This substitution simplifies the overall system by using inherent chemical properties to provide continuous environmental data without requiring complex mechanical sensors or electronic components.
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
Enables real-time monitoring of environmental conditions, such as temperature and exposure, by changing color, allowing for accurate tracking of product freshness and authenticity, and providing reliable data recovery through error correction processes.
Implementation Method 1
a sensor dye having a chemistry that is configured, responsive to the occurrence of an environmental condition, to undergo a continuous chemical or physical state change between an initial state and an end state, causing a change in the color state of the sensor dye
Implementation Method 2
a sensor dye having a chemistry that is configured, responsive to the occurrence of an environmental condition, to undergo a continuous chemical or physical state change between an initial state and an end state, causing a change in the color state of the sensor dye
Data Source
AI summary
Methods, systems, and apparatus for combining preprinted information together with coded sensor information within a two-dimensional barcode. The sensor information may be of an environmental, physical or biological nature, and records a cumulative change in status of the environmental or biological condition to which the labeled product has been exposed. A sensor dye chemistry is employed that undergoes a continuous chemical or physical state change in response to the occurrence of the environmental condition. The continuous change is between an initial state and an end state causing a change in the color state of the sensor dye embedded within the sensor-augmented two-dimensional barcode, encoding sensor digital information. Sensor information is recovered utilizing the error-correction feature during barcode decoding.