Light Channel Lightbar for Emergency and Identification Modes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Emergency vehicle lighting systems are limited to emergency signaling and cannot be used for identification during non-emergency conditions, leading to confusion and difficulty distinguishing vehicles in low visibility situations.
Innovation Solution
A light channel system that uses total internal reflection to transmit light from a light source to desired output locations, including peripheral and accent lighting, allowing independent control of light patterns and colors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional emergency vehicle lightbars are used for emergency signaling, then emergency warning capability is improved, but the ability to provide vehicle identification during non-emergency conditions deteriorates
Solution Approach 1:
The lightbar system is designed to perform multiple functions: emergency warning signaling and vehicle identification. The control system enables the lightbar to display different patterns and configurations based on operational mode. During non-emergency conditions, the lightbar displays identification patterns (such as steady or slowly blinking patterns) to help drivers identify emergency vehicles. During emergency conditions, it switches to warning patterns (such as rapid blinking or alternating patterns). This multi-functionality resolves the contradiction by making a single device adaptable to different operational requirements.
Solution Approach 2:
The lightbar system dynamically changes its operational characteristics based on the mode. The control system allows transition between identification mode and emergency warning mode, changing the light output patterns, intensity, and configuration dynamically. This dynamic adaptability enables the same hardware to serve different purposes at different times, resolving the contradiction between specialized emergency function and general identification function.
2Adaptability or versatility
If additional lighting devices are added to emergency vehicles for non-emergency identification, then vehicle identification capability is improved, but device complexity and potential confusion deteriorates
Solution Approach 1:
Instead of adding separate dedicated identification lighting devices, the invention makes the existing emergency lightbar multi-functional. The same lightbar hardware that provides emergency warning also provides vehicle identification during non-emergency conditions. This eliminates the need for additional separate devices, reducing overall system complexity while maintaining both functions. The control system manages the different operational modes of the single device.
Solution Approach 2:
The invention merges the emergency warning function and vehicle identification function into a single integrated lightbar system. Rather than having separate lighting devices for each function, the system combines both capabilities in one device with controlled operational modes. This merging reduces the number of components, simplifies installation and maintenance, and eliminates potential confusion that could arise from multiple separate lighting systems operating simultaneously.
3Area of stationary object
If light is transmitted over long distances in emergency vehicle lighting systems, then coverage area is improved, but the area required to transmit light increases
Solution Approach 1:
The light channel component extracts and separates the light transmission function from the overall lighting system. By using dedicated light channels (such as optical waveguides or light pipes) to transport light from the light source to the emission point, the system efficiently directs light over distances without requiring large transmission areas. The light channel confines and guides the light path, achieving long-distance transmission with minimal space requirements.
Solution Approach 2:
The light channel component can be implemented as a thin, flexible structure that efficiently transmits light over distance. These light channels (such as optical films or thin light guides) have small cross-sectional areas but can transmit light effectively over extended distances, achieving wide coverage without requiring large transmission areas. The thin-film or flexible channel structure minimizes the space needed for light transmission while maintaining effective light delivery.
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 vehicle identification in non-emergency conditions and reduces confusion by providing coordinated light patterns across multiple vehicles, improving visibility and safety.
Implementation Method 1
The light channel component may transmit the light using total internal reflection
Data Source
AI summary
A lightbar with additional periphery lights for further functionality. The periphery lights can be operated through LEDs positioned behind the primary emergency lights of the lightbar. The LEDs can transmit light through a light transmissive material to the periphery. These periphery lights can be operated independently of the primary emergency lights to provide identification during non-emergency situations or additional information for coordinating emergency response.