Auto run mode for initiating heating cycle of heated bedding product
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Solution Overview
Problem
Current heated bedding products require user action to initiate heating after AC power is applied, which does not comply with safety standards like UL 964 and limits automatic operation capabilities.
Innovation Solution
A heated bedding system with a microcontroller-based controller that operates in an auto run mode, automatically initiating a heating cycle in response to AC power, and includes a voltage switching device for remote control and timed operations, ensuring compliance with safety standards and user control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a microcontroller-based controller is used to control heating, then energy efficiency and temperature control are improved, but user convenience deteriorates because user action is required to initiate heating
Solution Approach 1:
The controller performs a start-up test automatically when AC power is detected, preparing the system for operation before user interaction is needed. This preliminary action enables the controller to immediately begin heating when in auto run mode, eliminating the need for user initiation while maintaining energy efficiency through controlled operation cycles.
2Ease of operation
If automatic initiation of heating cycle is implemented, then user convenience is improved, but safety compliance deteriorates because UL 964 standards require user action
Solution Approach 1:
The controller dynamically adapts its operation mode based on settings. It can operate in manual mode requiring user button presses for UL 964 compliance, or in auto run mode for convenience. The system transitions between these states based on user preference, allowing both safety compliance and user convenience to be satisfied under different operating conditions.
Solution Approach 2:
An intermediary auto run mode is introduced between manual control and fully automatic operation. This mode allows the controller to automatically initiate heating while still maintaining the ability to comply with safety standards by allowing user override and control options, thus mediating between conflicting requirements.
3Extent of automation
If auto run mode is added to the controller, then automatic operation capability is improved, but device complexity increases
Solution Approach 1:
The auto run functionality is merged into the existing microcontroller-based control system. The same processing circuit that handles manual control operations is extended to also handle automatic initiation when AC power is detected, combining multiple functions into a single integrated controller rather than adding separate systems.
Solution Approach 2:
The controller is designed with universal functionality to handle multiple operation modes (manual, auto run, different heating levels) within a single device. This multi-functionality allows the controller to adapt to different user needs without requiring additional separate control mechanisms, thereby limiting the increase in complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables automatic initiation of heating cycles without user intervention, while maintaining safety standards and allowing remote control and timed operations, enhancing user convenience and safety.
Implementation Method 1
a bedding product body (16) comprising a heating element (18)
Data Source
AI summary
This disclosure relates to an auto run mode for initiating a heating cycle of a heated bedding product. A heated bedding product can include a bedding product body comprising a heating element and a controller electrically connected to the heating element. The controller can include a processing circuit, such as a microcontroller, that is configured to operate in an auto run mode in which a heating cycle of the heating element is automatically initiated in response to alternating current power being provided to the controller.