Reverse 911 Alarm System Dynamic Wireless Multicast Coverage

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Solution Overview

Problem

Existing alarm systems fail to effectively propagate hazard warnings beyond their installation boundaries and do not integrate with 911 and Reverse 911 systems, leading to inadequate warning of individuals in impacted areas, especially in large metropolitan areas where telecommunications infrastructure can be overwhelmed.

Innovation Solution

A Reverse 911 Alarm System that uses a central alarm distribution site to dynamically select and alert alarm systems and wireless communication networks, enabling wireless multicasting to cover a broader area and integrate with 911 and Reverse 911 services for efficient alarm indication distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If existing alarm systems are used to warn individuals of a hazard, then the alarm indication can be generated locally, but the alarm indication cannot be propagated beyond the installation boundaries of the alarm system

Engineering Contradiction:

Improvecoverage areaVSAvoidintegration with external systems

Core Design Contradiction:

Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent combines multiple alarm systems into a coordinated network under centralized control. The central controller integrates with PSAP systems and coordinates multiple distributed alarm systems to collectively cover a broader geographic area, resolving the limitation of individual system coverage boundaries.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The alarm system is designed to perform multiple functions: local alarm generation, regional propagation through coordinated systems, integration with PSAP communications, and dynamic coverage area adjustment. This multi-functionality allows the system to adapt to various hazard scenarios and communication infrastructures.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If 911 and Reverse 911 systems are used for emergency communication, then individual notifications can be sent, but the systems are not integrally coordinated with alarm systems and fail to benefit from alarm indications

Engineering Contradiction:

Improveintegration with alarm systemsVSAvoidresponse time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system pre-establishes communication pathways and coordination protocols between alarm systems and PSAP infrastructure before emergencies occur. The central controller is pre-configured to interface with multiple alarm systems and PSAP systems, enabling immediate coordinated response when hazards are detected without requiring real-time system integration negotiations.

Inventive Principle:

Principle #10Preliminary action

3Area of stationary object

If wireless multicasting is used to distribute alarm indications, then broader area coverage can be achieved, but the coverage area must be dynamically configured to match the hazard extent

Engineering Contradiction:

Improvecoverage areaVSAvoiddynamic configuration capability

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The central controller continuously monitors hazard sensor data and dynamically adjusts the wireless multicast coverage area in real-time based on the actual extent and progression of the hazard. This feedback mechanism ensures that alarm notifications are targeted precisely to affected areas without requiring manual reconfiguration of the communication network.

Inventive Principle:

Principle #23Feedback

4Speed

If autonomous alarm devices are used to detect hazards, then immediate local alarm generation can occur, but the alarm only alerts individuals proximate to the active device

Engineering Contradiction:

Improvealarm response speedVSAvoidnotification area

Core Design Contradiction:

SpeedVSArea of stationary object

Solution Approach 1:

The system transitions from two-dimensional local alarm propagation (acoustic waves in immediate vicinity) to three-dimensional regional coverage by coordinating multiple distributed alarm systems and utilizing wireless communication networks. This dimensional expansion allows alarm indications to reach individuals across a much broader geographic area while maintaining the rapid response capability of local autonomous devices.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS8391827B2System for controlling the operation of both wireless multicasting systems and alarm systems to distribute an alarm indication to a dynamically configured coverage area

Publication Date: 2013.03.05 EMERGENCY ALERTS INNOVATIONS LLC

AI summary

The present Reverse 911 Alarm System implements a central alarm distribution site that is capable of generating an alarm indication to warn individuals of a hazard and propagating the alarm indication to selected ones of a plurality of alarm systems that are located in the service area of the central alarm distribution site to warn individuals of a hazard as well as transmitting the alarm indication to individuals via their wireless subscriber devices by the use of wireless multicasting in the wireless communication network that serves the service area of the central alarm distribution site. The central alarm distribution site creates an integrated Reverse 911 system which dynamically selects the alarm systems and the wireless coverage area to encompass the present extent of the hazard and can provide advanced warning to individuals located in an area that extends beyond the present hazard extent area.