Freshness Labeling From Refrigeration Temperature Records
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Solution Overview
Problem
Current methods lack a reliable way to track and ensure the freshness of perishable food products during storage and transportation, as manual checks are inadequate and visual or olfactory inspections are impractical until products are unpacked, leading to potential spoilage and quality issues due to temperature fluctuations and handling issues.
Innovation Solution
A system that includes thermostats and environmental modules in refrigeration units, connected to printers that generate labels indicating storage conditions, allowing for continuous monitoring and reporting of temperature and humidity, and triggering alarms for deviations, with the ability to attach these labels to products for verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual checking of thermometers or gauges is used to track temperature, then the system is simple and low-cost, but the reliability of temperature monitoring is insufficient and cannot detect spoilage in real-time
Solution Approach 1:
The food packaging container itself is transformed into the monitoring device by integrating temperature sensors, humidity sensors, and communication modules directly into the packaging structure. This allows the packaging to autonomously monitor and report environmental conditions without requiring external manual checking or complex separate monitoring systems.
Solution Approach 2:
The smart packaging container performs multiple functions simultaneously: it serves as the food container, temperature sensor housing, humidity sensor housing, data processing unit, and communication device. This multi-functionality eliminates the need for separate manual monitoring equipment and reduces overall system complexity while improving reliability.
2Loss of information
If visual or olfactory inspections are used to determine food freshness, then no additional monitoring equipment is needed, but these inspections are impossible until food is unpacked and cannot detect spoilage during storage
Solution Approach 1:
The smart packaging continuously monitors temperature, humidity, and other environmental conditions throughout the storage and transportation process, collecting freshness data before the food is unpacked. This preliminary monitoring provides advance information about potential spoilage without requiring physical inspection of the food itself.
Solution Approach 2:
The patent introduces smart packaging with integrated sensors as an intermediary between the food and the consumer/inspector. This intermediary continuously collects environmental data and communicates freshness status without requiring direct visual or olfactory inspection of the food, making freshness information accessible while the food remains packaged.
3Reliability
If refrigeration units operate without continuous monitoring, then energy consumption is lower and the system is simpler, but temperature fluctuations occur leading to food spoilage
Solution Approach 1:
The smart packaging includes sensors that continuously monitor temperature and humidity conditions, with communication modules that transmit this data to remote systems. This feedback mechanism allows real-time detection of temperature deviations, enabling timely intervention to prevent spoilage while optimizing energy usage by identifying when refrigeration adjustments are actually needed.
Data Source
AI summary
The method and system can include freezer and refrigeration units that are equipped with thermostats or modules for controlling and monitoring the temperatures inside the units. The thermostats may be communicatively coupled to a printer used for inventory labeling and date information. The thermostats may also include a variety of alarms that may be triggered. The method and system may provide a label that shows that any food products stored in the refrigeration and freezer units was maintained at a predetermined or desired temperature range during the storage period. The label can thus provide an indicator of “freshness” where one or more indicia may be printed thereon showing that the food product was properly stored, a temperature range during the storage period, duration of the storage period, expected shelf life of the food product, and the like.