Modular Traffic Display With Infrared Emergency Vehicle Detection
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Solution Overview
Problem
Current traffic signal preemption systems for emergency vehicles are inefficient and ineffective in providing timely warnings to drivers, often leading to collisions, and lack seamless integration with existing traffic control systems.
Innovation Solution
An electronic traffic alert system featuring modular displays with a central processor, infrared vehicle detectors, and wireless connectivity, capable of displaying graphics and alerts, and integrating with centralized traffic control, including modules for ambient light adjustment, pedestrian monitoring, and parking information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional traffic signal preemption systems are used, then emergency vehicle passage is enabled, but driver awareness and collision avoidance are insufficient
Solution Approach 1:
The system segments the emergency vehicle detection and warning function into multiple independent components: infrared detectors at each intersection, modular display units with different message types, and separate communication channels. This segmentation allows the system to provide targeted warnings to specific drivers approaching from different directions, significantly improving driver awareness and collision avoidance compared to traditional centralized preemption systems.
Solution Approach 2:
The patent introduces an intermediary communication system between emergency vehicles and traffic signals using infrared transceivers and modular displays. This intermediary layer receives preemption signals from emergency vehicles and translates them into visible warnings for drivers, bridging the information gap that exists in traditional systems where drivers remain unaware of approaching emergency vehicles.
2Adaptability or versatility
If modular display systems are implemented, then system adaptability and integration are improved, but device complexity increases
Solution Approach 1:
The modular display units are designed with universal communication interfaces that can integrate with both existing traffic control systems and new emergency vehicle preemption systems. Each module can function independently or in combination with others, providing multiple functions including emergency vehicle warnings, general traffic information display, and integration with centralized traffic control, thereby reducing overall system complexity through standardized multi-functional components.
Solution Approach 2:
The system employs a nested architecture where individual display modules can be independently configured and replaced within a larger display system. Each module contains its own processing and communication capabilities, allowing them to be nested within different traffic signal configurations without requiring complete system redesign, thus managing complexity through hierarchical modularity.
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 driver awareness of emergency vehicles and improves response times by providing programmable visual warnings and integrating with existing systems, ensuring safer vehicular flow and reduced collision risk.
Implementation Method 1
A transmitter mounted on an emergency vehicle transmits a signal whenever it is on an emergency call, which is received by infrared receivers positioned at an intersection.
Data Source
AI summary
An electronic traffic alert system for communicating with an emergency vehicle and a centralized traffic control station includes a traffic display having a screen for displaying graphics and configured to hold a plurality of modules. The modules are of substantially uniform shape, such that individual modules are interchangeably connectable to the traffic display, and the plurality of modules are mounted below the screen so that at least one of them extends below the traffic display. The traffic display also includes a central processor in communication with the plurality of modules and the screen, with the central processor configured to display a predetermined graphic on the screen according to input from at least one of the plurality of modules, and an interface for transmitting traffic-related information to the traffic display from and a centralized traffic control station.