Laundry Dryer Interface-Specific Control for Remote Operation Safety
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Solution Overview
Problem
Existing laundry dryer control systems face security concerns due to remote operation, as users cannot supervise the appliance and may miss critical warnings or fail to react promptly when the dryer is operated remotely, leading to potential safety issues such as spontaneous combustion of clothes.
Innovation Solution
A method for controlling a laundry dryer with two interfaces, allowing users to input commands remotely through a first interface (e.g., smartphone) and locally through a second interface (e.g., control panel), which triggers different working routines to manage drying cycles, including a cooling phase to ensure safe temperature limits and prevent spontaneous combustion, even when the command is sent from a remote location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the appliance is operated remotely via a separate control device, then user convenience and ease of operation are improved, but security and safety supervision deteriorate because the user cannot directly observe or react to warnings emitted by the appliance
Solution Approach 1:
The system implements feedback by sending notifications from the appliance to the remote control device when warnings are emitted or critical events occur. This allows the user to be informed of the appliance's status and respond appropriately, maintaining safety supervision despite remote operation.
Solution Approach 2:
The remote control device acts as an intermediary between the user and the appliance. It receives commands from the user to operate the appliance remotely and also receives and relays warnings from the appliance to the user, enabling both convenient remote operation and maintained safety supervision.
2Device complexity
If a single working routine is used for all interface commands, then device complexity is reduced, but adaptability to different operation contexts deteriorates
Solution Approach 1:
The control system is segmented into multiple working routines (first working routine for first interface commands, second working routine for second interface commands). This segmentation allows the system to handle different interface contexts appropriately while maintaining clear separation of control logic.
Solution Approach 2:
Different working routines are assigned to different interfaces based on their specific characteristics and contexts. The first interface (remote control) receives one type of response, while the second interface (local control) receives another type of response, optimizing the system's adaptability to each interface's operational context.
Data Source
AI summary
A method to control operation of a laundry dryer. The method includes starting a drying cycle, and receiving a user input command through one of a first interface and a second interface. If the command is provided through the first interface, a first working routine is started. If the same command is provided through the second interface, a second working routine is started. The second routing is different in at least one operational parameter than the first working routine. A laundry dryer configured to perform the method is also provided.