Emergency Vehicle Lighting Compliance With Glare-Aware Control
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Solution Overview
Problem
Emergency vehicle lighting systems often exceed minimum intensity requirements, causing glare and difficulty in seeing responders, and manual adjustments by emergency personnel risk non-compliance with regulatory standards due to lack of expertise and complexity in testing and adjusting light patterns, colors, and intensities.
Innovation Solution
A distributed network of smart light fixtures that communicate through a CAN, LIN bus, or Bluetooth to ensure compliance with regulatory standards by adjusting flash patterns, colors, and brightness levels based on user inputs and geographic location, using a processor to enforce compliance minimums and maximums.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light intensity is increased to meet or exceed minimum requirements, then compliance with regulatory standards is improved, but glare is caused and visibility of responders deteriorates
Solution Approach 1:
The lighting system dynamically adjusts light intensity and flash patterns based on operational context (responding vs. on-scene modes). The system transitions from high-intensity flashing lights during response to reduced-intensity steady or slow-flash modes when on-scene, allowing compliance during transit while reducing glare during stationary operations.
Solution Approach 2:
The system changes multiple light parameters simultaneously including intensity, flash rate, duty cycle, and color selection based on operational mode. This allows the same physical light fixtures to comply with different regulatory requirements for different operational phases without physical modification.
2Adaptability or versatility
If manual adjustment of light characteristics is allowed for flexibility, then adaptability to different situations is improved, but compliance with regulatory standards deteriorates due to lack of expertise
Solution Approach 1:
The system incorporates sensors and processors that continuously monitor light output characteristics and automatically adjust parameters to maintain compliance. The feedback loop ensures that even as operational conditions change, the system remains within regulatory boundaries without requiring manual intervention.
Solution Approach 2:
The lighting system autonomously determines the appropriate operational mode based on vehicle state (moving vs. stationary) and automatically configures light characteristics accordingly. This self-service capability eliminates the need for operator expertise in interpreting complex regulatory requirements while maintaining compliance.
3Manufacturing precision
If individual testing of each apparatus is performed for compliance, then manufacturing precision is improved, but device complexity and time consumption increase
Solution Approach 1:
Light fixtures are pre-configured with compliance parameters and operational modes during manufacturing. The system stores predefined configurations for different operational scenarios, allowing the apparatus to automatically select and implement the correct settings without requiring complex real-time analysis or manual testing during deployment.
Data Source
AI summary
A lighting system for an emergency vehicle, the lighting system including one or more light sources, and a processor, where the processor is configured to receive one or more compliance data from each light source of the one or more light sources, receive one or more location data from each light source of the one or more light sources, compare the compliance data and the location data with a compliance standard, determine a compliance minimum and a compliance maximum for one or more characteristics for each light source of the one or more light source, and adjust the one or more characteristics of each light source of the plurality of light sources based on one or more user commands, wherein each light source of the plurality of light sources operates at or above the compliance minimum and at or below the compliance maximum for each light source.