Thermostat Lockout Control for Unauthorized Setting Changes
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Solution Overview
Problem
Existing thermostatic control systems lack effective mechanisms to prevent unauthorized operation, particularly in commercial installations and residential settings, where accidental or unintended changes to temperature settings can lead to hazardous conditions.
Innovation Solution
A thermostatic control system with a configurable lock mechanism that allows users to select between manual and automatic lockout options, including a timeout feature, to prevent unauthorized operation, and can be unlocked using a multi-key press or coded entry, ensuring secure and reliable temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lock mechanism is added to prevent unauthorized operation, then safety and reliability are improved, but device complexity increases
Solution Approach 1:
The patent implements a lock mechanism that changes the operational state of the thermostat based on a timeout parameter. After a configurable period of inactivity, the system automatically transitions to a locked state where temperature adjustments are prevented. This parameter-based approach provides security without requiring complex physical locking components.
Solution Approach 2:
The thermostat system automatically locks itself after detecting user inactivity, eliminating the need for manual intervention to engage the security feature. The system monitors its own usage state and autonomously transitions to protected mode, reducing complexity while maintaining reliability.
2Reliability
If automatic timeout lockout is implemented, then protection against accidental changes is improved, but ease of operation deteriorates due to requiring unlock procedures
Solution Approach 1:
The system employs periodic monitoring of user interaction to determine when to engage the lock. By checking for activity at regular intervals and triggering lockout after a threshold period, the system provides automatic protection while allowing legitimate users to quickly reactivate the device by simply interacting with it again.
Solution Approach 2:
The thermostat performs preliminary monitoring of user presence and activity before engaging the lock mechanism. This advance detection allows the system to prepare for lockout while the user is still present, and automatically reactivate when user interaction is detected, minimizing disruption to legitimate operation.
3Adaptability or versatility
If manual lockout configuration is provided, then adaptability to different user needs is improved, but device complexity increases due to configuration options
Solution Approach 1:
The lock mechanism transitions dynamically between unlocked and locked states based on real-time detection of user interaction. Rather than requiring permanent configuration changes, the system adapts its security state automatically, providing versatility without adding complex configuration menus or settings.
Data Source
AI summary
A thermostatic control system having a configurable lock mechanism. The mechanism may be for preventing unauthorized or unintended operation of the thermostatic control system. The system may have a manual or an automatic lock out. If the manual or automatic lock out is not effected, the system may be configured to automatically effect a lock out after a certain period of time. To remove the lock out may require a coded entry. The lock out may be full or partial with respect to the functionality of the system. The lock out mechanism may be applicable to a wireless remote control of a thermostatic system; however, it may also be applicable, for instance, to a wall module thermostat.