Nomadic Server Content Pre-distribution via Fixed Nodes

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Solution Overview

Problem

The challenge lies in efficiently distributing content to and from nomadic content servers on vehicles, which often experience limited connectivity and high latency due to their movement patterns, requiring innovative methods to manage content delivery across a network of fixed and nomadic servers.

Innovation Solution

The system employs a network architecture that utilizes attributes associated with nomadic servers, such as schedules and vehicle characteristics, to pre-distribute content to fixed servers along a nomadic server's route, ensuring timely delivery and incremental data transfer at specific locations, leveraging attributes to manage and route content effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If content is distributed to nomadic servers in real-time during vehicle movement, then content delivery timeliness is improved, but connectivity limitations and high latency cause delivery failures

Engineering Contradiction:

Improvecontent delivery timelinessVSAvoidcontent delivery reliability

Core Design Contradiction:

Loss of timeVSReliability

Solution Approach 1:

The system performs preliminary actions by predicting future locations of nomadic servers based on their movement patterns and schedules, then pre-distributing content to fixed servers at those locations before the nomadic servers arrive. This eliminates the need for real-time distribution during movement, overcoming connectivity limitations while ensuring timely delivery.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Fixed servers act as intermediaries between the content source and moving nomadic servers. Content is first distributed to fixed servers at predicted locations, which then transfer it to nomadic servers when they stop. This intermediary approach bypasses the unreliable direct connection between content sources and moving servers.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If content is pre-distributed to multiple fixed servers along the route, then content delivery reliability is improved, but network complexity and data management overhead increase

Engineering Contradiction:

Improvecontent delivery reliabilityVSAvoidnetwork architecture complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system applies local quality by distributing content selectively to only those fixed servers located at predicted stopping points of nomadic servers, rather than uniformly to all servers in the network. This targeted approach maintains reliability while minimizing unnecessary network complexity and data management overhead.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system performs preliminary location prediction and content routing decisions before distribution begins. By predicting future stopping locations in advance, the system can pre-configured distribution paths and minimize real-time decision complexity during actual content transfer.

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If content distribution waits for vehicle arrival at fixed locations, then data transfer accuracy is improved, but content delivery timeliness deteriorates due to limited window of opportunity

Engineering Contradiction:

Improvedata transfer accuracyVSAvoidcontent delivery delay

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary actions by predicting future stopping locations and pre-distributing content to fixed servers at those locations before the nomadic servers arrive. This ensures content is ready for immediate transfer upon arrival, maximizing the limited window of opportunity while maintaining accurate transfer.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system provides beforehand cushioning by having content pre-positioned at multiple fixed servers along the predicted route. This creates a buffer that ensures content availability even if timing or location predictions have minor variations, preventing delivery delays while maintaining transfer accuracy.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS9668109B2Systems and methods for distributing content using attributes

Publication Date: 2017.05.30 THALES AVIONICS INC

AI summary

A fixed content server stores electronic content for delivery to a nomadic server on a vehicle. A schedule for arrival and departure of the vehicle transporting the nomadic server at a destination location is obtained, and a destination content server is identified. An electronic package is generated to contain an identifier for the vehicle and an identifier for the destination content server. Delivery of the electronic package to the destination content server at the destination location is initiated based on the schedule for arrival of the vehicle transporting the nomadic server to the destination location so delivery of the electronic package is initiated while the vehicle is traveling to the destination location. A time is determined to upload the electronic package from the destination content server to the nomadic server of the vehicle. Quality of service that a network uses to deliver the electronic package is provisioned based thereon.