Li-Fi Content Distribution for Vehicle Pathway Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing content delivery systems in public transportation, such as zoetropes, face challenges in maintaining passenger engagement due to repetitive content, leading to short-lived effectiveness as passengers become bored or annoyed over time.
Innovation Solution
A content distribution node using Li-Fi signaling to receive vehicle profile information and dynamically select and distribute video frames to display devices along a vehicle's pathway, ensuring customized content is displayed to passengers based on their characteristics and timing, allowing for more granular and flexible content delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same zoetrope content is repeatedly displayed to passengers, then the initial content delivery effectiveness is high, but passenger engagement deteriorates over time due to boredom and annoyance
Solution Approach 1:
The system dynamically changes content based on vehicle location, passenger profiles, and timing. Instead of static repeated content, the zoetrope displays different content sequences tailored to each vehicle's journey, maintaining passenger engagement throughout the ride duration while preserving delivery effectiveness.
Solution Approach 2:
The system changes multiple parameters including content selection, display timing, and distribution patterns based on vehicle position and passenger characteristics. This multi-parameter adjustment prevents content fatigue while maintaining effective delivery to the target audience.
2Reliability
If content is customized to individual passenger characteristics, then content delivery effectiveness increases, but system complexity increases due to profile management and dynamic selection
Solution Approach 1:
The content distribution node serves multiple functions: receiving Li-Fi signals, storing passenger profiles, selecting content based on profiles, and distributing to multiple vehicles. This multi-functionality consolidates complexity into a single node rather than requiring complex systems at each display location.
Solution Approach 2:
The content distribution node acts as an intermediary between the content source and display devices. It handles all the complexity of profile management and content selection centrally, simplifying the overall system architecture while maintaining personalized delivery effectiveness.
3Manufacturing precision
If video frames are distributed with precise timing synchronized to vehicle arrival, then content viewing quality improves, but timing accuracy requirements increase the system complexity
Solution Approach 1:
The system performs preliminary actions by pre-positioning video frames at display devices before the vehicle arrives. Content is prepared and distributed in advance based on predicted vehicle timing, reducing the need for complex real-time synchronization while maintaining precise display timing.
Solution Approach 2:
The system replaces mechanical timing synchronization with data-based timing using Li-Fi communication. Vehicle position and timing information is transmitted digitally and used to calculate optimal distribution timing, eliminating the need for complex mechanical or electronic synchronization mechanisms.
4Adaptability or versatility
If a single set of display devices shows varied content for different vehicles, then content versatility increases, but the ability to maintain consistent display quality across different content types becomes challenging
Solution Approach 1:
The system applies local quality by tailoring content selection to each vehicle's specific characteristics and passenger profiles. Each vehicle receives customized content appropriate to its route, timing, and audience, while the display devices maintain consistent technical quality through standardized distribution protocols from the content node.
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
This approach enhances content delivery effectiveness by personalizing content to targeted passengers, increasing engagement and allowing a single set of display devices to show a variety of content over time, while accurately determining timing for precise content distribution.
Implementation Method 1
at least one Light Fidelity (Li-Fi) signal receiver circuit configured to receive Li-Fi signaling of messages from mobile gateway nodes transported by vehicles
Data Source
AI summary
A content distribution node that distributes content to display devices which are arranged in a spaced apart sequence along a pathway of vehicles for display to passengers. The content distribution node receives from a mobile gateway node of a vehicle, through a Light Fidelity signal receiver circuit, a profile message containing profile information related to the vehicle. The content distribution node selects, from among content files available in a content repository, a set of video frames for distribution to the display devices based on the profile information. The content distribution node distributes different video frames among the set of video frames to different ones of the display devices with timing of the distribution that allows the video frames among the set to be displayed on respective ones of the display devices in the sequence before arrival of the vehicle within a field-of-view of at least one of the display devices.