Federated Collection Service for Wide Area Motion Imagery Data Access
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Solution Overview
Problem
Current methods for federating Wide Area Motion Imagery (WAMI) web services face challenges in efficiently accessing and processing large volumes of geographically dispersed data, which is costly and impractical due to the high volume of data and the need for complex compute infrastructure, especially in hostile or hard-to-reach locations.
Innovation Solution
Implementing a Federated Collection Service (FCS) that aggregates metadata from multiple WAMI collection services, allowing clients to access data through a single entry point, reducing the need for extensive compute power and infrastructure by only transmitting necessary data and using lightweight web services for metadata and data access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If WAMI data is accessed directly from multiple geographically dispersed locations, then data access capability is improved, but infrastructure complexity and data transmission costs increase significantly
Solution Approach 1:
The patent introduces a Federated Collection Service (FCS) as an intermediary component that sits between client applications and multiple WAMI Collection Services across different geographic locations. The FCS aggregates metadata from various WAMI Collection Services and provides a unified access interface, eliminating the need for clients to directly manage multiple distributed data sources. This mediator approach maintains data access capability while significantly reducing infrastructure complexity for end users.
2Quantity of substance
If complete WAMI data sets are transmitted to clients, then data completeness is improved, but data transmission costs and processing requirements increase
Solution Approach 1:
The patent extracts and transmits only the essential metadata components required for data discovery and access decision-making, rather than transmitting complete WAMI data sets. The FCS retrieves metadata from WAMI Collection Services, translates it into standardized formats, and provides this condensed information to clients. This allows clients to determine which full data sets they need to access, dramatically reducing unnecessary data transmission while maintaining the ability to access complete data when required.
Solution Approach 2:
The system implements partial action by transmitting only the necessary metadata portion of the complete WAMI data structure. The metadata contains sufficient information for clients to make informed decisions about data access without requiring transmission of the entire data set. This partial transmission approach reduces energy consumption and transmission costs while preserving full access capability to the underlying WAMI data when needed.
3Loss of information
If metadata from multiple WAMI Collection Services is aggregated and translated, then data discoverability is improved, but processing time and computational resources increase
Solution Approach 1:
The Federated Collection Service performs preliminary metadata aggregation and translation operations in advance, maintaining updated metadata catalogs from multiple WAMI Collection Services. By pre-processing and standardizing metadata before client requests arrive, the system enables rapid data discovery and access decisions. The metadata is already translated into standardized formats and organized for efficient querying, eliminating the need for time-consuming processing at the moment of client access.
Data Source
AI summary
This disclosure relates to WAMI discovery, specifically including: issuing a first request to a WAMI federated collection service (FCS) to retrieve WAMI collection metadata, the WAMI FCS being in communication with a WAMI collection service (CS), each WAMI CSs being in communication with a location where WAMI data is stored; receiving a response in a first format from the WAMI FCS; translating the received WAMI collection metadata from the first format into another format; issuing a second request to the WAMI FCS to access WAMI data in the other format; and retrieving in response to the second request, the WAMI data in the other format from the location that corresponds to a network link.