Electronic Lock Control with Blockchain Audit Trail

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Solution Overview

Problem

Traditional physical locks and key systems for securing high-value merchandise in retail stores are prone to theft, key management is cumbersome, and lack accountability, leading to significant employee theft losses.

Innovation Solution

A system using mobile device apps to validate employee identities and permissions over a network, transmitting unlock codes to electronic locks via NFC, Bluetooth, or other wireless communication, with an audit trail maintained on a blockchain for secure and reliable access control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional physical locks and keys are used to secure high-value merchandise, then the system is simple to implement, but security is compromised and key management becomes cumbersome

Engineering Contradiction:
ImprovesecurityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical lock and key systems with electronic locks that communicate via wireless protocols (NFC, Bluetooth, Wi-Fi). The mechanical key system is substituted with electronic authentication mechanisms including mobile device apps, RFID tags, and biometric sensors, thereby improving security while maintaining operational simplicity through automated electronic verification.

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

Solution Approach 2:

The patent introduces a key management server as an intermediary between employees and locked resources. This centralised system manages digital key distribution, authentication, and audit logging, replacing the need for physical key custody while providing enhanced security controls and automated accountability tracking through blockchain technology.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If physical keys are distributed to multiple employees, then access control is enabled, but accountability and key tracking become difficult

Engineering Contradiction:
Improveaccess controlVSAvoidaccountability tracking
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent implements automated feedback mechanisms where the key management server continuously monitors and logs all key usage events. Each access attempt, successful or failed, is recorded with employee identification, timestamp, and location data. This real-time feedback system provides complete accountability tracking without interfering with employee access operations.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system enables employees to self-authenticate using their own mobile devices or RFID tags without requiring physical key handovers. The digital key system automatically manages authentication and authorization, eliminating the need for manual key distribution and tracking while maintaining ease of access for authorised personnel.

Inventive Principle:
Principle #25Self-service

3Reliability

If physical keys are lost or stolen, then security is compromised, but replacing and managing keys is time-consuming

Engineering Contradiction:
ImprovesecurityVSAvoidkey management time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements automatic revocation and recovery mechanisms for digital keys. When a physical key is lost or an employee leaves the organisation, the key management server automatically revokes the corresponding digital key access rights. New digital keys can be instantly generated and distributed through the system, eliminating the time required for physical key replacement and reissuance.

Inventive Principle:
Principle #34Discarding and recovering

4Reliability

If electronic lock systems with network connectivity are implemented, then security and accountability are improved, but device complexity increases

Engineering Contradiction:
ImprovesecurityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent designs the electronic lock system to perform multiple functions through integrated hardware and software. The locks provide authentication, encryption, wireless communication, and blockchain integration capabilities within single devices. This multi-functionality reduces the need for separate systems while maintaining high security standards and comprehensive accountability tracking.

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

Data Source

PatentUS11395145B2Systems and methods of electronic lock control and audit
Publication Date: 2022.07.19 NCR VOYIX CORP
  • US11395145B2 patent drawing
  • US11395145B2 patent drawing
  • US11395145B2 patent drawing

AI summary

Various embodiments herein each include at least one of systems methods, software, and data structures for electronic lock control and audit. The various embodiments, although widely applicable, are well suited for retail use where higher-value and access-controlled merchandise is stored in locked cages, closets, rooms, and cabinets to prevent theft. One method embodiment includes receiving, via a network from a mobile device app, an unlock request including an employee identifier and a lock identifier to unlock a secured resource of the lock identifier. The method proceeds in processing the request by validating the employee identifier is authorized to unlock the lock of the lock identifier at a current date and time and retrieving a key-code that will unlock the lock of the lock identifier. The method then proceeds with transmitting the key-code to the mobile device app to enable unlocking of the lock.