Bluetooth Positioning Device Detection Through Track Similarity Analysis

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Solution Overview

Problem

Bluetooth positioning devices can leak user location information to surrounding devices, leading to potential tracking without consent.

Innovation Solution

A method for detecting Bluetooth positioning devices by recording location information of an electronic device and a Bluetooth positioning device, calculating track similarity, and determining if the electronic device is being tracked based on a preset similarity threshold.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If Bluetooth positioning devices broadcast signals to enable positioning function, then positioning capability is improved, but location information leakage and unauthorized tracking occur

Engineering Contradiction:

Improvepositioning functionVSAvoidlocation information leakage

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system implements a feedback mechanism where the electronic device continuously monitors Bluetooth signals and compares recorded location information with signals received from positioning devices. When similarity exceeds a threshold, the system generates alerts to notify users of potential tracking, creating a closed-loop security response to the positioning function's inherent risks

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent introduces an intermediary detection mechanism that acts as a mediator between the Bluetooth positioning device and the electronic device. This intermediary system (the detection method) analyzes the interaction without requiring direct user action, monitoring for unauthorized tracking attempts and preventing information leakage through automated comparison of location data and signal characteristics

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the electronic device continuously monitors Bluetooth signals for tracking detection, then tracking detection capability is improved, but energy consumption increases

Engineering Contradiction:

Improvetracking detection capabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system employs periodic action by monitoring Bluetooth signals at predetermined intervals rather than continuously. The electronic device periodically scans for Bluetooth signals, records location information at specific times, and compares data only when new signals are detected, significantly reducing energy consumption while maintaining effective tracking detection capability

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent applies partial action by monitoring only specific aspects of Bluetooth communication (signal presence, location data, signal strength) rather than all possible parameters. This selective monitoring approach reduces the computational and energy burden while providing sufficient detection accuracy to identify unauthorized tracking scenarios

Inventive Principle:

Principle #16Partial or excessive action

3Measurement precision

If the system records and compares location information tracks to detect tracking, then detection precision is improved, but device complexity increases

Engineering Contradiction:

Improvedetection precisionVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system extracts and isolates specific critical parameters from the complex Bluetooth signal data, namely location information, signal strength, and temporal patterns. By focusing analysis only on these extracted key elements rather than processing the entire complex signal spectrum, the system achieves high detection precision while keeping the implementation complexity manageable

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent utilizes parameter changes by transforming raw Bluetooth signal data into standardized detection parameters (location coordinates, signal strength values, time stamps). This parameter transformation simplifies the comparison process and reduces computational complexity while maintaining precise detection capability through mathematical calculations of similarity between extracted parameters

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12363504B2Bluetooth positioning device detection method, device, and storage medium

Publication Date: 2025.07.15 HONOR DEVICE CO LTD

AI summary

This application provides a Bluetooth positioning device detection method, a device, and a storage medium. The method includes: recording first location information, where a set of the first location information is used as a first track, and the first track is a moving track of a first electronic device; recording second location information when a preset trigger condition is met, where a set of the second location information is used as a second track, and the second track is used to represent a moving track of a Bluetooth positioning device; calculating a similarity between the first track and the second track in a preset time period; and determining that the first electronic device is tracked by the Bluetooth positioning device if the track similarity is greater than a preset similarity threshold.