Geofenced Emergency Alert Testing via Simulated GPS
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Solution Overview
Problem
Existing emergency alert systems that use geofenced areas to target alerts effectively can cause unnecessary panic or confusion due to the transmission of alerts to devices outside the intended area, and there is a need for a method to test the proper handling and output of these alerts without activating a public emergency.
Innovation Solution
A system and method for testing geofenced emergency alerts using a controlled environment where user equipment receives simulated GPS signals to determine its location, allowing verification of proper alert handling and output within or outside a defined geofenced area without transmitting active alerts to the public.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If emergency alerts are transmitted over a large area to ensure people affected by the emergency receive the alert, then the coverage and reliability of alert delivery is improved, but unnecessary panic or confusion is caused among people who do not actually need to receive the alert
Solution Approach 1:
The patent applies local quality by implementing geofenced alert transmission, where alerts are selectively delivered only to devices located within a specific geographic boundary. This allows the system to maintain reliable alert delivery to affected areas while preventing unnecessary panic or confusion in unaffected regions by avoiding broad-area transmissions.
Solution Approach 2:
The patent segments the transmission area into a geofenced region and the rest of the area. By dividing the geographic space, the system can target alerts to specific locations where they are needed, improving reliability for affected populations while eliminating harmful effects in other regions.
2Object-affected harmful factors
If geofenced alerts are used to target emergency information to specific areas, then unnecessary panic or confusion is reduced, but the complexity of determining device location and managing geofenced areas increases
Solution Approach 1:
The patent introduces an intermediary system that handles the complexity of location determination and geofence management. This intermediary component processes GPS coordinates, compares them against defined geofenced areas, and manages the alert transmission logic, thereby reducing the operational complexity for the overall system while maintaining targeted alert delivery.
3Reliability
If active emergency alerts are transmitted to test the geofenced alert system, then the alert handling and output can be verified, but the general public may receive test alerts causing confusion when there is no actual emergency
Solution Approach 1:
The patent uses a simulated or test alert mechanism that copies the structure and functionality of real emergency alerts without actually transmitting them to the general public. This allows the system to verify alert handling and geofenced area processing through controlled testing while avoiding the harmful effect of confusing the public with test messages that resemble real emergencies.
Data Source
AI summary
Systems and methods of testing the handling of, or response to, transmitted Wireless Emergency Alerts (WEA) that include a geofenced area. The testing can include providing first location Global Positioning System (GPS) signals to user equipment, causing the user equipment to determine it is geographically located at the first location. A WEA alert can be provided to the user equipment and the WEA can include a geofenced area that does not include the first location. The user equipment can be provided GPS signals corresponding to a second location that is within the geofenced area of the WEA. Verification can then be performed to check that the user equipment displays the WEA alert, or message, in response to the user equipment determining its geographical position as corresponding to the second location that is within the geofenced area.