Autonomous Content Delivery System for In-Flight Entertainment
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Solution Overview
Problem
In-flight entertainment options for airline passengers are limited due to isolation from external networks, leading to restricted access to high-quality multimedia content, as traditional content delivery systems rely heavily on consistent connectivity to central servers and fail when disconnected.
Innovation Solution
A content delivery network (CDN) system that enables secure, autonomous content delivery to consumer devices via content delivery systems (CDS) equipped with key-management schemes, allowing them to operate independently of external networks by distributing encrypted content and cryptography keys, and managing content delivery sessions even when disconnected from the data center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional content delivery systems rely on consistent connectivity to central servers, then secure content delivery can be maintained, but content delivery fails when disconnected from external networks
Solution Approach 1:
The system segments the centralized content delivery architecture into distributed autonomous CDS units. Each CDS can independently manage content delivery sessions and verify authorization tokens without requiring continuous connection to the central data center, enabling operation in disconnected environments while maintaining security through distributed verification capabilities
Solution Approach 2:
The system performs preliminary actions by pre-distributing encrypted content and authorization tokens to autonomous CDS units before disconnection occurs. The CDS receives and stores content encryption keys and authorization data in advance, allowing it to continue delivering content securely even when disconnected from the external network
2Productivity
If CDS operates in autonomous mode without external network connectivity, then content delivery continues uninterrupted, but verification of resumption requests becomes challenging
Solution Approach 1:
The system uses authorization tokens as verified copies of authorization data that are distributed to autonomous CDS units. These tokens contain embedded verification information that allows CDS to validate resumption requests locally without needing to contact the central data center, simplifying the verification process while maintaining security
Solution Approach 2:
The authorization token acts as an intermediary that carries verification information between the central data center and autonomous CDS units. The token enables the CDS to verify resumption requests independently by containing pre-validated authorization data, eliminating the need for complex real-time verification protocols
Data Source
AI summary
Multimedia content may be delivered to content consumer devices via a content-delivery network. Encrypted content and cryptography keys for decrypting the content may be distributed from a data center to various nodes of the content-delivery network, each node acting as a semi-independent content-delivery system. Each content-delivery system is capable of delivering received content to end-users and implementing a key-management scheme to facilitate secure content-delivery and usage tracking, even when the content-delivery system is disconnected from the data center. Further, each content-delivery system may generate an authorization-token that can be transmitted to other systems in the content-delivery network, enabling the other systems to quickly determine that a request to resume a previous content-delivery session has already been authorized.