Backup LED Integration in Lighting Arrays for Power Outages
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Solution Overview
Problem
Conventional lighting systems often malfunction in extreme temperatures and environmental conditions, such as power outages, leading to inefficient or ceased operations, as they lack effective backup systems to maintain functionality.
Innovation Solution
The implementation of a backup battery mode in lighting systems, where a subset of LEDs is connected to a backup battery that can provide power during utility power outages and extreme temperature conditions, with a controller managing the power distribution and charging based on sensor data from motion and ambient light sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a backup battery system is added to lighting systems, then reliability during power outages is improved, but device complexity increases
Solution Approach 1:
The patent combines the backup battery system with the existing LED array structure, where a subset of LEDs serves dual purposes: normal operation and backup mode. The battery is integrated into the same housing and electrical system, sharing common components like heat sinks and mounting structures, thereby reducing overall system complexity despite adding backup functionality.
Solution Approach 2:
The LED array is designed with multi-functionality where the same LEDs are used for both normal operation and backup operation. The system can switch between utility power mode and battery backup mode using the same physical infrastructure, eliminating the need for completely separate backup lighting systems and reducing overall device complexity.
2Area of stationary object
If backup LEDs are integrated into the LED array, then space utilization is improved, but manufacturing precision requirements increase
Solution Approach 1:
The LED array is segmented into different functional zones: primary LEDs for normal operation and backup LEDs integrated within the same array. These segments are arranged in specific patterns with different color temperatures, allowing the system to activate different portions based on power availability while maintaining manufacturing feasibility through modular assembly processes.
Solution Approach 2:
Different regions of the LED array have different properties - some LEDs are designated for normal operation while others are reserved for backup mode. The backup LEDs are strategically positioned and configured with specific color temperatures to complement or differ from primary LEDs, creating local quality variations that enable functional differentiation without requiring complete redesign of the entire array.
3Illumination intensity
If the backup battery provides full power to all LEDs, then illumination intensity is improved, but energy consumption increases
Solution Approach 1:
During backup operation, the system activates only a subset of LEDs rather than all LEDs, providing partial illumination that is sufficient for safety and visibility purposes while consuming significantly less battery power. This partial action approach balances illumination needs with energy conservation, extending battery life during outage conditions.
Solution Approach 2:
The system employs periodic or duty-cycled operation of backup LEDs, activating them during critical periods when power is needed and reducing or shutting off during less critical periods. This periodic action allows the battery to recharge during utility power availability and discharge during outages, optimizing the balance between illumination provision and energy consumption.
4Adaptability or versatility
If the lighting system operates in extreme temperatures, then adaptability is improved, but reliability decreases due to conductivity changes
Solution Approach 1:
The system adjusts operational parameters based on temperature conditions, modifying LED current, battery charging rates, and system thresholds to account for temperature-induced conductivity changes. The controller monitors environmental conditions and dynamically adjusts electrical parameters to maintain reliable operation across extreme temperature ranges, compensating for the physical effects of heat on component behavior.
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
Ensures continuous operation of lighting systems during power outages and extreme temperatures by using backup LEDs powered by a battery, while also conserving energy and extending battery life through controlled charging and operation modes.
Implementation Method 1
a backup battery mode for a lighting device... causing the backup battery to provide a backup supply signal to the backup LEDs
Implementation Method 2
causing a supply signal to be provided to a first set of light emitting diodes (LEDs) and a second set of LEDs
Data Source
AI summary
The described embodiments relate to systems, methods, and apparatuses for providing a lighting system that includes backup light emitting diodes (LEDs) that are incorporated into a primary array of LEDs of the lighting system. The backup LEDs can be illuminated when a utility power source for the lighting system becomes unavailable. The backup LEDs can operate from a backup power supply, which can be charged from the utility power source, when the utility power source is available. Furthermore, charging of the backup power supply can be temperature dependent, in order that the backup power supply and/or the charging circuit can be protected from damage caused by operating such components out of an operating specification.