Matter-Enabled Locking Device for Secure Long-Distance Control

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Solution Overview

Problem

Existing locking devices face challenges in securely transmitting authorization codes over long distances and integrating with building networks without significant effort, while maintaining data security and energy efficiency.

Innovation Solution

A locking device with a bidirectional transmit/receive interface using the Matter connection standard, enabling communication via radio standards in the 2.4 GHz, 5 GHz, or 6 GHz bands, and supporting protocols like IEEE 802.15.4, allowing integration into various networks and controlling additional building systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If wireless transmission of authorization codes is used for long-distance control, then control range is improved, but data security deteriorates

Engineering Contradiction:
Improvecontrol rangeVSAvoiddata security
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

The patent introduces Matter-certified transmission interfaces as intermediaries between the locking device and external systems. These standardized interfaces implement secure encryption and authentication protocols that protect authorization codes during wireless transmission, allowing long-distance control while maintaining data security through certified security mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs dynamic parameter changes in the transmission system, including adjustable encryption keys, rotating authorization tokens, and time-based one-time passwords. These parameter changes ensure that even if one transmission is intercepted, the security is compromised only temporarily and cannot be reused, thus maintaining data security over long distances.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple network protocols are supported for building integration, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improvenetwork compatibilityVSAvoidinterface complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The locking device is designed with universal Matter-certified transmission interfaces that can operate across multiple network protocols and building automation systems. The device performs multiple functions including direct locking control, integration with smart home systems, and compatibility with various building management platforms, all through standardized Matter interfaces that simplify the overall system architecture.

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

Solution Approach 2:

The patent uses Matter-certified transmission interfaces as universal intermediaries that translate between different network protocols and the locking device. This intermediary layer handles protocol conversion and compatibility issues, allowing the device to work with diverse building networks without increasing its internal complexity, as the standardized Matter protocol manages the multi-protocol requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Use of energy by moving object

If energy-efficient transmission modes are used, then energy consumption is reduced, but transmission reliability may deteriorate

Engineering Contradiction:
Improveenergy consumptionVSAvoidtransmission reliability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent implements periodic transmission modes where authorization codes and control signals are sent at optimized intervals rather than continuously. The system uses duty cycling with sleep and active periods, transmitting data only when necessary while maintaining connection readiness. This periodic action significantly reduces energy consumption while ensuring reliable transmission by timing communications with system activity cycles.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The transmission system dynamically changes parameters such as transmission power levels, data packet sizes, and retransmission thresholds based on energy availability and signal conditions. When energy is abundant, the system uses higher power and more robust protocols; when energy is limited, it switches to lower-power modes with optimized packet efficiency, maintaining reliability across varying energy states.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4610952A1Locking device
Publication Date: 2025.09.03 BURG WAECHTER GMBH & CO KG
  • EP4610952A1 patent drawingFigure 1
  • EP4610952A1 patent drawingFigure 2
  • EP4610952A1 patent drawingFigure 3

AI summary

Locking device (6) for a door, a gate or a window, with an electrically operated, in particular electromotive lock (7) or relay and a device (8) for inputting and/or transmitting an authorization data set for controlling the electromotive lock (7) or relay, wherein the device (8) has a housing (12) for accommodating a control device (13) and a receiving and/or input device for the authorization data set as well as a transmitting device which transmits a control signal to a receiver in the lock (8) or relay. A locking device (6) with which control over a large distance with a high level of security is possible and which can simultaneously be integrated into a network (23) of a building, wherein existing locking devices (6) can be integrated or integrated into a plurality of different networks without great effort.are connectable to such a network (23) is designed in that the device (8) for inputting and/or transmitting an authorization data record has a transmitting/receiving interface (16) for a connection standard Matter.