Automated Gunshot Lockdown System with Triple-Validation Sensors

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Solution Overview

Problem

Current door lockdown systems during active shooter events rely on human intervention, leading to delayed and inaccurate responses due to the need for manual activation, which can result in loss of time and lives, and are often costly.

Innovation Solution

The Emergency Automated Gunshot Lockdown System (EAGL) uses a triple-validation system with energy sensors to automatically detect and confirm gunshots, locking doors and sending real-time notifications to law enforcement, including shooter imagery and GPS location, to facilitate rapid and accurate response without human intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual door lockdown systems are used during active shooter events, then human operators can control the locking mechanism, but the response time is delayed due to the need for manual activation and human intervention

Engineering Contradiction:
Improveresponse accuracyVSAvoidlockdown activation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical door locking systems with an automated electronic system that uses acoustic sensors to detect gunshots and automatically triggers door locks. This substitution eliminates the need for human operators to manually activate locks, reducing response time from minutes to seconds while maintaining reliable lockdown functionality through automated detection and actuation systems

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service operation where the lockdown mechanism automatically activates in response to detected gunshots without requiring human intervention. The acoustic sensors, control unit, and door locks work together as an autonomous system that detects threats and executes lockdown procedures independently, eliminating delays associated with human reaction and manual activation

Inventive Principle:
Principle #25Self-service

2Measurement precision

If complex sensor systems are deployed to detect gunshots accurately, then detection precision improves, but system complexity and cost increase

Engineering Contradiction:
Improvegunshot detection accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a control unit as an intermediary between the acoustic sensors and door locks that processes sensor signals and determines whether they represent genuine gunshot events. This intermediary analyzes acoustic patterns, filters false alarms from non-threat events, and only triggers lockdown when a validated gunshot is detected, thereby improving detection accuracy without requiring overly complex sensor arrays

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system segments the detection function into separate components: acoustic sensors capture sound waves, the control unit analyzes and validates the signals against gunshot patterns, and only then activates the door locks. This segmentation allows each component to be relatively simple while achieving high overall detection accuracy through coordinated operation and systematic signal validation

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The EAGL system enables rapid and accurate detection of gunshot events, automatically locking doors and providing critical data to responders, enhancing survivability and tactical response by eliminating human error and reducing response time to seconds.

Implementation Method 1

The energy sensor calculates detected energy levels to distinguish threat vs. non-threat events by processing captured energy through a max and threshold limit circuits

Methodology Applied
Scientific EffectAcoustic energy detection: Acoustics

Data Source

PatentUS11538330B2Emergency automated gunshot lockdown system (EAGL)
Publication Date: 2022.12.27 SECURITY USA SERVICES LLC
  • US11538330B2 patent drawing
  • US11538330B2 patent drawing
  • US11538330B2 patent drawing

AI summary

The Emergency Automatic Gunshot Lockdown (EAGL) System detects gunshots and executes at least one predetermined adaptive response action, such as notifying law enforcement of an active shooter, providing access control measures such as locking down soft target areas, and alerting building occupants of an active shooter situation. A gunshot is detected and verified using a triple validation system. Once a firearm is discharged, the EAGL system sends “real time” data to building officials, law enforcement, and building occupants notifying them of an active shooter situation. Simultaneously, predetermined commands are sent to access control devices for perimeter, office, classroom, and other soft target areas to lockdown and stay secure, to keep the shooter from entering these soft target areas, and to prevent shooter from entering other buildings.