Lighting Device with Dual-Unit Power Storage and Brightness Control
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Solution Overview
Problem
Existing lighting devices, particularly LED lamps, are ineffective during power interruptions, leading to inconvenience and high costs due to the need for routine lighting in emergency situations, and lack adjustable brightness features.
Innovation Solution
A lighting device comprising a power management module, light source driving module, sensing unit, lighting module, and brightness control module, which processes alternating-current power to output direct-current power, senses light source driving signals, and adjusts brightness, enabling continued operation through power storage and switching between primary and secondary lighting units during power failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If routine lighting is equipped in stairways and emergency exits, then lighting availability is improved, but cost increases
Solution Approach 1:
The lighting device integrates both routine lighting and emergency lighting functions into a single unit. The first lighting unit provides routine lighting during normal operation, while the second lighting unit activated by the lighting module provides emergency lighting during power failures. This multi-functional design eliminates the need for separate lighting systems, reducing overall cost while maintaining continuous lighting availability.
2Reliability
If power storage control function is added to enable emergency lighting, then lighting availability during power outages is improved, but device complexity increases
Solution Approach 1:
The power management module and lighting module are integrated into a unified control system. The sensing unit detects power failures and triggers the lighting module to activate the second lighting unit. By merging power management, sensing, and emergency lighting control into a single integrated module, the patent reduces device complexity compared to having separate independent systems for each function.
Solution Approach 2:
The lighting device automatically detects power failures through the sensing unit and activates emergency lighting without requiring external intervention. The power management module autonomously manages power distribution between the first and second lighting units based on power availability, eliminating the need for manual switching or complex external control systems.
3Ease of operation
If brightness control module is added to adjust light source brightness, then user-friendliness is improved, but device complexity increases
Solution Approach 1:
The brightness control module is integrated into the existing light source driving module, allowing the same module to perform both driving and brightness adjustment functions. This approach adds the brightness control feature without requiring a completely separate control system, thereby improving user-friendliness while minimizing the increase in device 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
The solution provides a cost-effective, user-friendly lighting system with adjustable brightness that maintains functionality during power outages by switching to stored power and ensuring continuous illumination, enhancing convenience and reducing emergency lighting costs.
Implementation Method 1
a power management module configured to connect with alternating-current power, to process the alternating-current power, and to output direct-current power
Implementation Method 2
to store the direct-current power signal by means of the power storage control function
Data Source
AI summary
A lighting device including: a power management module connected with and processing alternating-current power and outputting direct-current power; a light source driving module receiving and processing a portion of the direct-current power and outputting a light source driving signal; a first lighting unit receiving the light source driving signal and illuminating a light source; a sensing unit sensing the light source driving signal intensity; a lighting module receiving a portion of the direct-current power output by the power management module, processing the received direct-current power, outputting a direct-current power signal, storing the direct-current power signal through a power storage control function, processing the stored direct-current power signal by means of a power storage control unit whenever the sensing unit senses that the light source driving module does not output the light source driving signal, and outputting a lighting light source driving signal to a second lighting unit for illuminating a light source.