LED Safety Vest Layout for 360-Degree Low-Light Visibility
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Solution Overview
Problem
Existing safety apparel that relies on external light sources for visibility is limited in low-light conditions and may not ensure 360-degree visibility, posing risks to individuals in high-traffic or low-light environments.
Innovation Solution
A safety vest with integrated LED lights and a portable power source, controlled by a controller, providing 360-degree visibility and customizable illumination modes without requiring external light sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If safety apparel uses colored or fluorescent style vests, then visibility is improved in daytime conditions, but visibility is insufficient in low-light or nighttime conditions without external light sources
Solution Approach 1:
The patent combines the safety vest with integrated LED light sources and a power supply system into a single unified device. The LED lights are attached to the vest structure, merging the illumination function with the safety apparel, enabling the vest to provide active illumination in low-light conditions while maintaining its passive reflective properties during daytime.
Solution Approach 2:
The safety vest becomes self-illuminating through integrated LED lights powered by an onboard power supply (battery or solar panel). The system can autonomously provide illumination without requiring external light sources, and the solar panel variant can recharge itself during daytime, making the device self-sufficient for extended operation.
2Reliability
If safety apparel relies on external light sources, then device complexity is reduced, but reliability is compromised in environments without external lighting
Solution Approach 1:
The patent integrates the power supply system (battery or solar panel), LED light sources, and control circuitry directly into the vest structure. This merging of components creates a self-contained illumination system that reliably operates independently of external light sources, ensuring consistent visibility regardless of environmental lighting conditions.
3Illumination intensity
If LED lights are integrated into the safety vest, then 360-degree visibility is achieved, but device complexity increases
Solution Approach 1:
The patent divides the illumination system into multiple discrete LED light sources positioned at different locations on the vest (front, back, sides, and reflective panels). This segmentation allows the lights to emit in multiple directions simultaneously, achieving 360-degree visibility coverage while distributing the complexity across separate, manageable components rather than a single complex system.
4Illumination intensity
If integrated LED lights with portable power source are added to the safety vest, then visibility in low-light conditions is improved, but weight of the garment increases
Solution Approach 1:
The patent employs solar panels as a power source that converts solar energy into electrical energy to charge the battery. This parameter change from purely battery-powered to solar-assisted power generation reduces the required battery capacity and overall system weight while maintaining sufficient illumination duration for low-light conditions.
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 visibility of wearers in all directions, reducing the risk of accidents by ensuring constant illumination regardless of the observer's angle, and offering customizable brightness, color, and mode options.
Implementation Method 1
The improved safety vest is preferably comprised of LED lights attached to the outer seams of the garment
Data Source
AI summary
An illuminated safety garment to improve the visibility of a wearer, such as a public service worker, in low-light conditions. The safety garment features an integrated LED light system that is electrically connected to a power source, and that ensure that the wearer is visible to third parties from a 360 degree vantage point. The LED light system may be hardwired or in wireless communication with an individualized or central controller that enables the user to control multiple aspects or features of the LED light system, as well as those of a number of other accessories such as an audible system, locator system, etc. Use of the illuminated safety garment offers a way to prevent serious accidents and injuries due to low visibility of, for example, public service workers.