Centralized Door Access Control for Gunshot Detection

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Solution Overview

Problem

Existing door lock systems in schools and large companies are inefficient in ensuring all doors are locked during security events, such as gunshots or fires, and require manual verification, which delays response times and increases risk.

Innovation Solution

A centralized door access control system that connects multiple door locks to a control device, allowing for simultaneous locking and unlocking, with emergency states that revoke unlocking authority and alert police systems, enabling rapid response to security incidents.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual checking of door locks is used, then individual door security can be maintained, but response time during security events is delayed and labor costs increase

Engineering Contradiction:
Improvedoor securityVSAvoidresponse time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent merges multiple independent door lock systems into a single centralized control system. The control device communicates with multiple door locks through a network, enabling simultaneous control of all doors from one location. This resolves the contradiction by providing both reliable security monitoring and rapid response capability without manual checking.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system enables automatic door locking and status monitoring without requiring manual intervention. The control device automatically locks doors when security events are detected and can independently monitor door status, eliminating the need for security personnel to physically check each door while maintaining reliable security.

Inventive Principle:
Principle #25Self-service

2Ease of operation

If individual door locks are controlled separately, then each door can be managed independently, but simultaneous locking of multiple doors during emergencies is impossible

Engineering Contradiction:
Improvedoor management flexibilityVSAvoiddoor locking speed
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The centralized control device merges the control functions of multiple door locks into a single system. It can selectively control individual doors or lock all doors simultaneously through network communication, achieving both operational flexibility and rapid response during emergencies.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The control system dynamically adjusts its operation mode based on situational requirements. It can operate in individual door control mode for routine management or switch to simultaneous locking mode during emergencies, providing both flexibility and high productivity as needed.

Inventive Principle:
Principle #15Dynamics

3Reliability

If all door locks are locked simultaneously during emergencies, then intruder movement is prevented, but evacuation during fires may be hindered

Engineering Contradiction:
Improvesecurity controlVSAvoidemergency response adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The control device implements local quality control by enabling selective locking of specific doors based on the type and location of the emergency. During gunshots, it locks all doors to prevent intruder movement, while during fires, it unlocks doors near the fire location to facilitate evacuation, thus adapting to different emergency scenarios.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system dynamically adjusts its locking strategy based on the detected emergency type. It transitions between different control states (all doors locked, selective door locking, or all doors unlocked) to optimize both security and safety outcomes for different emergency scenarios.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10648198B1Method for controlling door access in a gunshot event
Publication Date: 2020.05.12 SHEN I TING
  • US10648198B1 patent drawing
  • US10648198B1 patent drawing

AI summary

A method for controlling door access in a gunshot event includes connecting door locks with a control device. Each door lock retains its unlocking authority when no gunshot event is detected. A gunshot event information containing the gunshot location is sent to the control device when the gunshot event is detected, and the control device reports the gunshot location to the police system. At least one of the door locks near the gunshot location is set to the locking state, and the unlocking authority of the at least one door lock is revoked. Furthermore, the control device simultaneously sets the door locks to a locking state or an unlocked state through physical connection with or disconnection from an unlocking device. When the unlocking device is removed, the control device enters a first priority emergency state, such that all door locks are set to the locking state and lose unlocking authority.