Smart Home Dimmer with Proximity Sensing and Display
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Solution Overview
Problem
Conventional dimmers have limitations such as limited lifespan of adjustable resistors, lack of tactile feedback, inability to remotely control or display information, and absence of automatic night compensation.
Innovation Solution
A novel intelligent dimmer system for smart homes, featuring a proximity switch, controller, display, and dimming unit, which senses user presence, generates control signals, displays information, and adjusts lighting brightness, with optional rotary encoder, timer, and wireless communication for remote control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional adjustable resistors and knobs are used for dimming control, then the dimming function can be achieved, but the lifespan is limited and tactile feedback is lacking
Solution Approach 1:
The patent replaces conventional mechanical adjustable resistors and knobs with a rotary encoder that generates encoding signals for digital processing. This substitution eliminates the mechanical wear issues of traditional components while maintaining rotational control functionality, thereby extending lifespan and enabling enhanced tactile feedback through electronic sensing mechanisms.
2Adaptability or versatility
If conventional dimmers are used, then basic dimming control is achieved, but remote intelligent control and information display capabilities are lacking
Solution Approach 1:
The patent integrates multiple functions into a single dimmer device including proximity sensing, information display, and wireless communication capabilities. The controller processes various input signals (encoding signals, sensing information, control information) and coordinates multiple components (display, dimming unit, wireless communication unit) to provide comprehensive smart home control functionality, thereby achieving multi-functionality without proportionally increasing complexity.
Solution Approach 2:
The patent introduces a controller as an intermediary component that coordinates between various sensors, displays, and communication modules. The controller processes encoding signals from the rotary encoder, sensing information from the proximity switch, and control information from mobile terminals, then generates appropriate control signals for the dimming unit and display, thereby managing system complexity through centralized control.
3Loss of information
If the display is kept on continuously, then information is always visible, but energy consumption increases
Solution Approach 1:
The patent implements periodic display activation based on detected user presence. The proximity switch senses when a user approaches and triggers the display to turn on, and when no user is detected for a preset delay time, the controller turns off the display to save energy. This periodic activation based on usage patterns maintains information visibility when needed while reducing energy consumption during idle periods.
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
Enhances user experience with improved lifespan, tactile feedback, remote control capabilities, and display of relevant information, while also providing automatic night compensation and energy-saving features.
Implementation Method 1
the proximity switch includes an infrared emitter and an infrared receiver
Data Source
AI summary
A light dimmer for smart homes includes a proximity switch for sensing whether a person is approaching a target area, and outputting sensing information in response to the sensing result; a controller connected to the proximity switch for generating a first control signal based on the sensing information; a display coupled to the controller, for generating a display based on the first control signal; a light dimming unit coupled to the controller, for adjusting the brightness of the illumination load based on a second control signal generated by the controller. This system is suitable for use in smart homes. By providing the proximity switch and the display, it can meet multifunctional needs of smart homes and enhance user experience.