Mesh Network Relay for Digital Key Control Around Obstacles

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Solution Overview

Problem

High-frequency signals used in digital keys for controlling target objects are prone to interference from obstacles, reducing the effective communication distance and preventing control in environments with many obstacles.

Innovation Solution

A MESH network is configured to include multiple objects, allowing control instructions from a digital key to be forwarded through inter-node links to the target object, even when direct high-frequency communication is not possible.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high-frequency signals are used for data transmission in digital keys, then data communication capability is improved, but communication reliability deteriorates due to interference from obstacles

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidinterference from obstacles

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a MESH network as an intermediary communication path between the digital key and target object. When direct high-frequency communication is blocked by obstacles, the control instructions are transmitted through intermediate nodes in the MESH network, bypassing the physical obstruction and maintaining communication reliability without compromising the high-frequency signal capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Speed

If direct high-frequency communication link is used between digital key and target object, then communication speed is improved, but communication distance deteriorates in environments with many obstacles

Engineering Contradiction:

Improvecommunication speedVSAvoideffective communication distance

Core Design Contradiction:

SpeedVSLength of stationary object

Solution Approach 1:

The patent segments the communication path into multiple hops through the MESH network. Instead of requiring a single direct link between digital key and target object, the communication is divided into several shorter segments transmitted through intermediate nodes. This allows the effective communication distance to be extended by chaining multiple communication segments together, while each segment maintains high-speed transmission.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If MESH network is used to relay control instructions, then communication coverage is improved in obstacle-filled environments, but system complexity increases

Engineering Contradiction:

Improvecommunication coverageVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent makes existing objects in the environment serve dual functions: their original function plus acting as communication nodes in the MESH network. This universality approach allows the system to achieve extended communication coverage without adding dedicated infrastructure, as ordinary objects can participate in signal relaying. The complexity is managed by leveraging existing objects rather than introducing new specialized components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP4697676A1Method for controlling target object by using mesh network, and object control system

Publication Date: 2026.02.18 BOE TECHNOLOGY GROUP CO LTD

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AI summary

Provided are a method for controlling a target object by using a MESH network, and an object control system. The method may comprise: a configurator configuring a target object into a MESH network; and sending, by means of the MESH network and to the target object, a control instruction from a digital key corresponding to the target object. In this way, remote control over a target object by using a digital key can be realized.