Adaptive Night-Light Control Using Multi-Sensor Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic devices with night-light functions lack sophisticated control mechanisms to automatically adjust lighting based on environmental light intensity, user movement, and proximity, leading to inefficient and user-unfriendly operation.
Innovation Solution
An electronic device equipped with photosensitive sensors, acceleration sensors, infrared sensors, a distance sensor, and a processing unit that implements a night-light control system with modules for light intensity acquisition, acceleration detection, moving state determination, and automatic control of lighting, allowing for adaptive night-light functionality based on preset conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the night-light function is always on to ensure availability, then user convenience is improved, but power consumption increases
Solution Approach 1:
The system continuously monitors environmental light intensity via photosensitive sensors and user movement via acceleration sensors, using this feedback to dynamically adjust night-light operation. The control unit processes sensor data in real-time to determine when night-light activation is necessary, ensuring the light is available when needed while avoiding unnecessary power consumption in inappropriate conditions
Solution Approach 2:
The night-light system transitions from a static always-on state to a dynamic controlled state based on environmental conditions. The system adapts its operation by changing between active and inactive states according to real-time sensor inputs, optimizing the balance between user convenience and power consumption
2Adaptability or versatility
If multiple sensors and control modules are added to achieve sophisticated automatic control, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent integrates multiple sensing functions (light detection, acceleration measurement, proximity sensing) and control logic into a unified night-light control system. The control unit consolidates data from various sensors and coordinates their inputs to make centralized control decisions, reducing the need for separate control circuits for each sensor and simplifying the overall system architecture
Solution Approach 2:
The control unit serves multiple functions: it processes data from photosensitive sensors, acceleration sensors, and distance sensors; determines user presence and movement state; and controls night-light activation. This multi-functional approach reduces the need for dedicated control circuits for each sensor type, thereby managing system complexity
3Measurement precision
If the night-light activates based on multiple conditions (light intensity, acceleration, distance) then lighting accuracy is improved, but control system complexity increases
Solution Approach 1:
The control system divides the detection process into separate functional modules: light intensity detection by photosensitive sensors, acceleration detection by acceleration sensors, and distance detection by distance sensors. Each sensor type independently monitors its specific parameter, and the control unit integrates these segmented detection results to make comprehensive activation decisions, improving accuracy while managing complexity through modular design
Data Source
AI summary
A night-light control method in an electronic device comprises controlling a photosensitive sensor to detect a light intensity value and controlling an acceleration sensor to detect an acceleration value of the electronic device and thus movement. Acquiring the acceleration value from the acceleration sensor when the acquired light intensity value is in the first preset light intensity range; determining whether the acquired acceleration value is in a preset acceleration range and controlling an infrared sensor to detect whether a user of the electronic device is moving when the acquired acceleration value is in the preset acceleration range. A display unit of the electronic device is controlled to emit light or control a light emitting unit of the electronic device to emit light when the user of the electronic device is moving.