Linear Emitter Modules for Moving Vehicle Video Display
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Solution Overview
Problem
Existing systems for displaying visual information to passengers in moving vehicles face challenges such as pulsed impact on the retina, complexity of implementation, high maintenance costs, and inability to display dynamic images or quickly change content.
Innovation Solution
A system utilizing linear emitter modules with control and display units, synchronized via a Passive Optical Network (PON), which allows for high-speed data transmission, precise synchronization, and remote control of image content, enabling dynamic image display and interactive communication with passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If images are illuminated by light spots mounted on the outside of the train for short moments, then animation effect is achieved, but the viewing time is spent on eyes adapting to the light spot and the amount of information conveyed is limited
Solution Approach 1:
The patent replaces the mechanical illumination system (light spots mounted on trains) with a stationary illumination system combined with photodetectors that track moving objects. This substitution eliminates the need for mechanical movement of light sources and allows continuous illumination and tracking without the adaptation time penalty.
Solution Approach 2:
The patent introduces photodetectors as intermediaries that detect the moving object and trigger illumination of corresponding images. This intermediary system enables precise timing of illumination based on object position, maximizing information conveyance during the brief viewing window without requiring eye adaptation.
2Loss of information
If general-interest or advertising information is attached to the walls of the metro tunnel, then information display is achieved, but there is no capability to quickly change the image or display dynamic images
Solution Approach 1:
The patent implements a dynamic information display system where images can be changed in real-time based on detected moving objects. The system transitions from static tunnel wall attachments to a dynamic system that activates and updates images based on real-time object detection and tracking, enabling both static and dynamic content delivery.
Solution Approach 2:
The patent pre-positions multiple images along the tunnel wall in advance, each corresponding to a specific location. When a moving object is detected, the system activates the appropriate pre-positioned images, enabling quick content changes without physical reconfiguration and allowing dynamic information display.
3Productivity
If information carriers are arranged in a systematic sequence along the vehicle's route with illumination duration shorter than vehicle passage time, then visual information is presented, but pulsed impact on the retina occurs and adjustment according to passenger speed is difficult
Solution Approach 1:
The patent employs photodetectors to detect moving objects and provides feedback to the illumination system. This feedback mechanism enables the system to adjust illumination timing and duration based on the actual position and speed of the vehicle, eliminating fixed pulsed illumination patterns and reducing retinal impact while maintaining information presentation effectiveness.
Solution Approach 2:
The patent changes the illumination parameter from fixed-duration pulses to variable-duration illumination controlled by object detection. The system adjusts illumination timing and intensity based on real-time detection of vehicle passage, eliminating harmful pulsed impact while adapting to varying passenger speeds.
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
The system provides a reliable, low-maintenance, and high-quality visual information display that is resistant to external influences, with the ability to quickly update content and offer interactive experiences, enhancing passenger engagement and comfort.
Implementation Method 1
Light-emitting elements, such as LEDs, semiconductor lasers, or other light-generating means, can be used
Implementation Method 2
A network optical interface, PON (Passive Optical Network), is used
Data Source
AI summary
The invention relates to a system for displaying dynamic and static images for advertising or informational purposes in moving vehicles, such as trains or metro. The system includes linear emitter modules installed along the windows, which synchronize video content with the movement of the vehicle and display it to passengers. These modules do not contain moving parts, ensuring high reliability and low maintenance. They use passive optical networks (PON) for synchronization and data transmission, and support dynamic content such as Full HD or 4K video. Additionally, the system provides interactive engagement through a mobile app, allowing passengers to participate in games or receive personalized content. The system ensures precise synchronization with each metro or train car, compensating for changes in speed and acceleration, providing uninterrupted viewing.