Optical Ring Thermostat for Precise Rotation Sensing
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Solution Overview
Problem
Existing thermostats often have a bulky design that protrudes from the wall and lack high accuracy in rotational movement sensing, making them less user-friendly and aesthetically unpleasing for adjusting settings and navigating menus.
Innovation Solution
A low-profile wall-mountable thermostat with a ring-shaped control member surrounding a rounded display, equipped with an optical sensor to detect rotational movement and generate electrical signals for user input, enhancing sensing accuracy and user interface functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a traditional thermostat design is used, then it provides basic control functionality, but it protrudes far from the wall resulting in a bulky appearance
Solution Approach 1:
The patent replaces traditional mechanical sensing mechanisms with an optical sensing system. An optical sensor detects rotational movement of the control ring by monitoring changes in reflected light patterns, eliminating the need for bulky mechanical components and enabling a sleek, low-profile thermostat design.
Solution Approach 2:
The patent transitions from mechanical dimension (physical contact and movement) to optical dimension (light reflection and detection). By using optical patterns and light-based sensing, the system achieves accurate rotational detection without requiring the physical space needed for traditional mechanical sensors.
2Measurement precision
If a compact thermostat design is used, then it achieves a low profile, but it reduces the accuracy of rotational movement sensing
Solution Approach 1:
The patent substitutes mechanical rotational encoders with an optical detection system. The optical sensor captures reflected light patterns from the control ring, and processing circuitry analyzes these patterns to precisely determine rotational position and movement, achieving high measurement accuracy in a compact form factor.
Solution Approach 2:
The patent changes the sensing parameter from mechanical displacement to optical reflection characteristics. By detecting changes in light reflection patterns as the control ring rotates, the system achieves precise rotational measurement without the physical constraints of mechanical sensing components.
3Shape
If a low-profile design is used, then it provides a sleek appearance, but it complicates the internal arrangement of sensing components
Solution Approach 1:
The patent merges the optical sensor, light source, and processing circuitry into an integrated sensing assembly. This consolidation reduces the number of discrete components and simplifies the internal arrangement, enabling a low-profile design while maintaining sensing functionality.
Solution Approach 2:
The optical sensing system serves multiple functions: detecting rotational position, determining rotational direction, and measuring rotational speed. This multi-functionality reduces the need for separate sensing mechanisms, simplifying the overall component arrangement within the compact housing.
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
The solution provides a sleek, visually appealing design that allows for precise user input with minimal protrusion from the wall, improving user experience and interface accuracy for adjusting settings and navigating menus.
Implementation Method 1
an optical sensor mounted within the housing and directed away from the central axis and toward a radially inward-facing surface of the ring-shaped control member, so as to detect optical signals indicating rotational movement of ring-shaped control member
Data Source
AI summary
A sleek, low-profile wall-mountable thermostat for controlling an HVAC system is described. The thermostat includes a ring-shaped controller that rotates about a central axis, and an optical sensor directed away from the central axis and toward a radially inward-facing surface of the ring-shaped controller so as to accurately detect optical signals indicating controller's rotational movement.