Mobile Refrigerator Control Using Food State Display
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Solution Overview
Problem
Existing home network systems require a separate master device for controlling and monitoring home appliances, and there is a need to display state information of refrigerators, including food inventory and freshness, using a mobile terminal.
Innovation Solution
A mobile terminal with a wireless communication unit, controller, and display unit that receives state information from a refrigerator, displays food management information, and transmits control signals, enabling remote control and monitoring of the refrigerator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate master device is provided to control and monitor home appliances, then the control and monitoring function is achieved, but the device complexity and system construction become more complicated
Solution Approach 1:
The mobile terminal is designed to perform multiple functions including controlling the refrigerator, monitoring food inventory, receiving error messages, and software upgrades. By making the mobile terminal universal rather than creating a dedicated master device, the system achieves control and monitoring capabilities while reducing overall system complexity.
Solution Approach 2:
The control and monitoring functions are extracted from a separate master device and integrated into the mobile terminal that the user already possesses. This eliminates the need for a dedicated master device while maintaining all necessary control and monitoring capabilities.
2Loss of information
If state information of the refrigerator is displayed using a separate master device, then the information display function is achieved, but the convenience and accessibility are reduced
Solution Approach 1:
The mobile terminal, which the user already owns and carries, is utilized to display refrigerator state information. This eliminates the need for a separate display device and allows users to access information conveniently wherever they are, as the mobile terminal is already part of their daily routine.
Solution Approach 2:
The mobile terminal serves multiple purposes including displaying refrigerator state information, controlling refrigerator operations, and providing user notifications. This universal approach eliminates the need for dedicated display hardware while improving accessibility.
3Adaptability or versatility
If a home network system with separate master device is constructed, then the control capability is achieved, but the ease of operation and user convenience are reduced
Solution Approach 1:
The mobile terminal acts as an intermediary between the user and the refrigerator. It receives user input, transmits control signals to the refrigerator, and delivers information from the refrigerator to the user. This intermediary approach maintains full control capability while significantly improving user convenience by utilizing a device users already carry and are familiar with.
Data Source
AI summary
A mobile terminal, an operating method thereof, and a refrigerator are disclosed. The operating method of the mobile terminal includes receiving state information of the refrigerator from the refrigerator, displaying the state information of the refrigerator on a screen, and transmitting a control signal based on a control operation to the refrigerator. Therefore, it is possible to readily control the refrigerator using the mobile terminal.