Publish-Subscription Platform for Targeted Emergency Alert Delivery
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Solution Overview
Problem
Current Emergency Alert System (EAS) networks face inefficiencies in delivering targeted alerts to specific geographic areas, as they rely on conventional broadcasting methods that do not effectively utilize advanced communication protocols for precise location-based message dissemination.
Innovation Solution
A publish-subscription platform is implemented, which receives alert messages from various sources, authenticates client devices, and publishes alerts to devices based on matching geographic locations, using Web Services Description Language (WSDL) and Session Initiation Protocol (SIP) message translation, and Simple Mail Transfer Protocol (SMTP) for delivery, ensuring relevant alerts reach subscribers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional broadcasting methods are used to deliver EAS messages, then the system is simple and easy to implement, but the delivery precision and ability to target specific geographic areas is poor
Solution Approach 1:
The patent introduces a publish-subscription platform as an intermediary between alert sources and client devices. This platform receives alert messages, authenticates client devices, matches geographic locations, and publishes relevant alerts to subscribed devices. The intermediary enables precise location-based delivery without requiring complex modifications to existing EAS infrastructure, resolving the contradiction between delivery precision and system complexity.
2Productivity
If conventional broadcast methods are used, then the system structure is simple, but the efficiency of delivering targeted alerts to specific areas is reduced
Solution Approach 1:
The patent implements preliminary actions by having client devices authenticate and subscribe to alert services in advance, with geographic location information pre-stored. When alerts are generated, the publish-subscription platform can immediately match alerts with subscribed devices based on pre-established geographic criteria, eliminating the need for real-time complex processing and improving delivery efficiency.
Solution Approach 2:
The publish-subscription platform acts as an intermediary that handles the matching and distribution logic centrally. This mediator architecture improves efficiency by consolidating the matching process rather than requiring each client device to independently process alerts, while the modular design keeps the overall system manageable despite the added complexity.
3Measurement precision
If location-based authentication and matching is implemented, then the accuracy of alert delivery is improved, but the system complexity increases
Solution Approach 1:
The publish-subscription platform serves as an intermediary that handles location-based authentication and matching centrally. By consolidating these functions in a dedicated platform rather than distributing them across multiple systems, the patent achieves high location matching accuracy while managing system complexity through centralized processing.
Solution Approach 2:
The publish-subscription platform performs multiple functions including alert reception, client authentication, geographic location matching, and message publication. This multi-functional design achieves accurate location-based delivery without requiring separate dedicated systems for each function, thereby managing overall system complexity while maintaining high precision.
Data Source
AI summary
An alert delivery system includes a publish-subscription platform that is configured to receive alert messages from one or more sources. The publish-subscription platform is further configured to publish the alert messages to client devices based on matches between geographic locations respectively associated with ones of the alert messages and geographic locations respectively associated with ones of the client devices.