UWB MAC Address Acquisition via Position Matching

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Solution Overview

Problem

Existing methods for obtaining Media Access Control (MAC) addresses of devices are inconvenient, requiring manual user operation, such as Bluetooth pairing, which is impractical in scenarios like shopping malls where users lack patience to establish connections.

Innovation Solution

A method and apparatus using ultra-wideband (UWB) signals to obtain MAC addresses by synchronously acquiring device information and three-dimensional position data, allowing for the determination of the MAC address of a UWB device belonging to a target object without the need for user-operated connections, utilizing UWB positioning and depth cameras to map and expand position data for accurate identification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual Bluetooth pairing is used to obtain MAC addresses, then connection reliability is improved, but operation convenience deteriorates

Engineering Contradiction:

Improveconnection reliabilityVSAvoidoperation convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system performs automatic MAC address acquisition through UWB signal interception and position-based matching without requiring user intervention. The first device automatically obtains device information from UWB signals, matches positions with target object data, and determines MAC addresses autonomously, eliminating the need for manual Bluetooth pairing operations.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical operations (user pressing buttons for Bluetooth pairing) with automated electronic systems. The UWB signal interception, automatic position matching, and MAC address determination are all performed through electronic automation, substituting the mechanical user interaction required by traditional Bluetooth pairing methods.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If automated UWB-based MAC address acquisition is implemented, then operation convenience is improved, but device complexity increases

Engineering Contradiction:

Improveoperation convenienceVSAvoiddevice complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The first device integrates multiple functions into a single system: UWB signal reception, device information extraction, position data acquisition, coordinate system mapping, and MAC address determination. This multi-functional integration allows the device to perform automated MAC address acquisition alongside other tasks, managing complexity through versatility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces position information as an intermediary element to connect UWB signal data with target object identification. Instead of directly matching device signals to MAC addresses, the system uses position coordinates as a mediator to bridge the gap between raw UWB data and meaningful identification, simplifying the overall process architecture.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Measurement precision

If position matching is used to identify target devices, then identification accuracy is improved, but measurement complexity increases

Engineering Contradiction:

Improveidentification accuracyVSAvoidmeasurement complexity

Core Design Contradiction:

Measurement precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The patent transitions from two-dimensional position data to three-dimensional position sets for more accurate device identification. By acquiring and mapping 3D position information, the system enhances identification accuracy by adding spatial depth as an additional dimension for matching, allowing for more precise target object recognition while managing measurement complexity through systematic coordinate transformation.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach significantly enhances the convenience of obtaining MAC addresses by automating the process, eliminating the need for manual device pairing and improving efficiency in various application scenarios.

Implementation Method 1

positioning, by the first device, the connectable UWB device using the UWB signal to obtain a position coordinate of the UWB device

Methodology Applied

Scientific EffectUWB positioning: Time of Flight

Implementation Method 2

acquiring, by the first device while obtaining the device information, three-dimensional position set data of the target object using a depth camera

Methodology Applied

Scientific EffectDepth camera measurement: LIDAR

Data Source

PatentUS20250008303A1Method and apparatus for obtaining mac addresses of devices

Publication Date: 2025.01.02 SAMSUNG ELECTRONICS CO LTD

AI summary

A method for obtaining a Media Access Control (MAC) address of a connectable ultra wide band (UWB) device includes obtaining, by a first device, device information of the connectable UWB device using a UWB signal; obtaining, by the first device synchronously with the obtaining the device information, first three-dimensional position set data of a target object, the device information comprising the MAC address and first position information of the connectable UWB device; and determining, by the first device, the MAC address of the connectable UWB device belonging to the target object based on the device information and the first three-dimensional position set data.