Tile-Based Multimedia Alerting System for Severe Weather
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Solution Overview
Problem
Current NOAA Weather Radio systems have limited coverage and require manual tuning, leading to inconsistent reception and potential false alarms, as they rely on traditional city, state, or county boundaries for alert dissemination, which is inefficient and inaccurate.
Innovation Solution
A multimedia alerting system that utilizes location-enabled devices to convert them into video, audio, and textual severe weather warning devices, employing a tile coding system for precise geographic targeting, allowing for accurate delivery of alerts based on device location and reducing false alarms by using a Mercator projection-based tile system for efficient alert dissemination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional city, state, or county boundaries are used for alert dissemination, then coverage area is large, but alert accuracy deteriorates and false alarms increase
Solution Approach 1:
The patent divides geographic space into a grid of tiles rather than using traditional political boundaries. Each tile is a discrete geographic unit that can be independently targeted for alerts. This segmentation allows precise targeting of specific tiles affected by severe weather without alerting users in adjacent tiles that are not affected, thereby improving alert accuracy while maintaining efficient coverage.
Solution Approach 2:
The patent implements location-specific alerting where each tile can receive customized alerts based on its specific weather conditions. The system determines which tiles are affected by severe weather and sends alerts only to devices within those specific tiles, rather than broadcasting to entire counties or states. This local quality approach ensures alerts are relevant to each specific location, reducing false alarms while maintaining comprehensive coverage.
2Ease of operation
If manual tuning is required for weather radio reception, then device complexity is reduced, but ease of operation deteriorates and reception consistency worsens
Solution Approach 1:
The patent implements automatic location-based alert delivery where the system itself performs the tuning and routing functions. The server automatically determines the device's location, identifies affected tiles, and delivers alerts without requiring user intervention for tuning or configuration. This self-service approach improves ease of operation while the automated processes manage the system complexity on the server side rather than requiring complex user-facing controls.
3Measurement precision
If tile coding system with Mercator projection is implemented, then alert targeting precision is improved, but device complexity increases
Solution Approach 1:
The patent uses a server as an intermediary that handles the complex Mercator projection calculations and tile code conversions. The mobile devices simply communicate their location to the server, and the server performs the sophisticated geographic transformations to determine which tiles are affected. This intermediary approach improves geographic targeting precision while keeping device complexity low by moving the computational burden to the server side.
Data Source
AI summary
A method, system, and device provide alert information using weather prediction data. The method includes: converting weather prediction data to a tile based tile set, the tiles each representative of a unique geographic projection of a rendered geographical area of defined size; determining for each time period of the forecast whether any of the one or more weather variables associated with each prediction geographical tile violates a weather variable threshold for the location associated with the prediction geographical tile, the determining performed by comparing for each time period of the forecast each weather variable of the one or more weather variables associated with the prediction geographical tile to the weather variable threshold for the location associated with the prediction geographical tile; and generating and communicating one or more alerts corresponding to one or more violations of the weather variable thresholds for the locations associated with the prediction geographical tiles.