Tamper-Proof Thermostat with Hardware-Based Temperature Limiting
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Solution Overview
Problem
Current tamper-proof thermostats fail to effectively limit temperature controls, as tenants can often discover or bypass security codes, leading to unreasonable energy consumption.
Innovation Solution
A tamper-proof thermostat that operates on a fixed schedule synchronized with an atomic clock, allowing temporary adjustments within predetermined parameters, and features a controller, wireless communication device, and user controls to maintain secure temperature settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If security codes are used to secure temperature parameters, then temperature control security is improved, but tenants can still discover or bypass codes through internet research or other means, defeating the purpose
Solution Approach 1:
The patent removes the security code feature entirely from the thermostat system. Instead of relying on codes that can be discovered or bypassed, the system extracts the security function and replaces it with hardware-based temperature limiting circuitry that physically prevents exceeding preset temperature thresholds, making the security mechanism unbreachable by users.
Solution Approach 2:
The patent replaces the mechanical/code-based security system with an electronic/hardware-based temperature limiting system. The hardware circuitry automatically enforces temperature limits without requiring user input or security codes, substituting a discoverable code-based system with an unbreachable hardware enforcement mechanism.
2Loss of energy
If temperature controls are completely restricted to prevent energy waste, then energy efficiency is improved, but tenants lose ability to make reasonable temporary adjustments for comfort
Solution Approach 1:
The patent implements dynamic temperature control where the thermostat allows temporary deviations from preset temperature limits under specific conditions. The system transitions from static hard limits to dynamic adaptive limits that can temporarily accommodate user needs while automatically returning to energy-saving parameters, balancing comfort and energy efficiency.
Solution Approach 2:
The patent employs periodic temperature adjustments where temporary overrides are allowed for specified durations or time periods, after which the system automatically reverts to preset energy-saving temperatures. This periodic action pattern enables short-term comfort adjustments while maintaining long-term energy efficiency.
3Adaptability or versatility
If programmable thermostats allow user customization of temperature schedules, then adaptability is improved, but complexity of programming and setup increases
Solution Approach 1:
The patent implements self-service functionality where the thermostat automatically determines and adjusts temperature schedules based on occupancy detection, time of day, and weather conditions without requiring user programming. The system serves itself by autonomously optimizing temperature settings, eliminating the need for complex user programming while maintaining adaptability.
Solution Approach 2:
The patent allows the thermostat to automatically change operational parameters such as temperature setpoints, timing schedules, and control strategies based on detected conditions. Rather than requiring users to program fixed schedules, the system dynamically adjusts parameters in response to environmental and occupancy inputs, simplifying operation while maintaining versatility.
Data Source
AI summary
A thermostat includes: a controller adapted to control the function of an associated HVAC system; and user controls adapted to provide instructions to the controller including selecting between heating functions and cooling functions, wherein the controller is limited by a maximum temperature when heating functions are selected and limited by a minimum temperature when the cooling functions are selected, wherein the maximum temperature is a lower temperature than the minimum temperature.