Smart Stateroom Door Control With Local Facial Recognition

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Solution Overview

Problem

Existing access control systems on cruise ships are limited in functionality, primarily focusing on unlocking doors with identification cards and lacking advanced features for passenger comfort, security, and crew access management.

Innovation Solution

A multifunctional smart door device equipped with facial recognition technology, a local data store, a wide-angle camera, proximity sensor, and processor, which unlocks stateroom doors based on facial recognition results, allows crew access, and provides features like personalized stateroom settings, live video streaming, and foot traffic analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional identification card access control is used, then the system is simple to operate, but the functionality and passenger comfort features are limited

Engineering Contradiction:
ImprovefunctionalityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The smart door device integrates multiple functions including facial recognition access control, electronic peephole with two-way audio communication, delivery notification system, and stateroom occupancy detection. This multi-functional integration resolves the contradiction by providing diverse capabilities (improving adaptability) while consolidating these functions into a single unified device at the door (managing complexity).

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines previously separate systems (access control, security camera, intercom, delivery notification) into one integrated smart door device. This merging approach allows the system to offer comprehensive functionality (improving versatility) while reducing the number of separate components needed (managing overall system complexity).

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If facial recognition technology is implemented, then contactless access and hygiene are improved, but processing time and computational requirements increase

Engineering Contradiction:
Improveaccess convenienceVSAvoidprocessing time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system performs facial recognition processing locally at the door device rather than requiring remote server communication. This preliminary action of local processing eliminates network latency and provides immediate access decisions, resolving the contradiction by enabling contactless access (improving ease of operation) while minimizing processing delays (reducing time loss).

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The smart door device autonomously performs facial recognition, identification, and access control decisions without requiring manual intervention or complex centralized processing. This self-service capability at the door provides instant contactless access (improving convenience) while distributing computational tasks locally (reducing centralized processing time requirements).

Inventive Principle:
Principle #25Self-service

3Speed

If local data storage is implemented, then data access speed is improved, but device memory requirements increase

Engineering Contradiction:
Improvedata access speedVSAvoidmemory capacity
Core Design Contradiction:
SpeedVSQuantity of substance

Solution Approach 1:

The system implements local data storage specifically for frequently accessed information such as facial recognition templates and customer profiles at the door device. This localized storage of critical data provides rapid access for access control operations (improving speed) while the ship-wide network handles less frequently accessed data (managing overall memory requirements).

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent divides data storage between local door devices (for immediate access needs like facial templates) and centralized ship-wide servers (for comprehensive customer databases). This segmentation allows fast local data access (improving speed) while distributing storage requirements across multiple locations (managing memory capacity).

Inventive Principle:
Principle #1Segmentation

4Reliability

If multiple sensors and cameras are integrated, then security and monitoring capabilities are improved, but device complexity and power consumption increase

Engineering Contradiction:
Improvesecurity capabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The smart door device activates sensors and cameras on-demand based on detected events such as approach detection, knock detection, or access attempts, rather than continuous operation. This periodic activation provides enhanced security monitoring capability (improving reliability) while significantly reducing power consumption compared to continuous operation.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts sensor and camera operation based on situational needs, activating high-power components only when events require enhanced monitoring. This dynamic operation provides improved security reliability when needed while minimizing overall power consumption during normal states.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20210350642A1Multifunction smart door device
Publication Date: 2021.11.11 ASSA ABLOY GLOBAL SOLUTIONS AB
  • US20210350642A1 patent drawing
  • US20210350642A1 patent drawing
  • US20210350642A1 patent drawing

AI summary

Multifunction smart door devices may be part of a system of multifunction smart door devices installed within or near stateroom doors of a cruise ship. Each smart door device can control access to a stateroom based on facial recognition or a wireless credential and can perform other functions such as controlling stateroom personalization features, providing an electronic peephole function, allowing controlled access for authorized crew members, accommodating remote unlocking, and providing notifications. Data obtained by the smart door devices can be provided to the cruise operator for service, safety, or security purposes, such as for anonymized foot traffic analysis, hazard detection, and stateroom access auditing. Smart door device functionality may be implemented in part by customers' mobile devices.