One-Dimensional Sensor Array for User Position Tracking

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Solution Overview

Problem

Existing methods for determining user position indoors, such as those using cameras or sensors, face challenges including high costs, complex computations, privacy concerns, and low accuracy, making them unsuitable for miniaturization and effective user tracking.

Innovation Solution

An electronic device equipped with a sensor array of pixels in a single direction, connected to a processor and memory, which processes sensing data to determine user position information and perform corresponding operations, reducing computational complexity and privacy risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a camera is used to determine user position, then detailed position information can be obtained, but the hardware cost and computational complexity increase

Engineering Contradiction:
Improveuser position information accuracyVSAvoidhardware and computation complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts only the essential function of position detection from the camera system by using a simplified sensor array that captures one-dimensional image data. This extraction allows obtaining user position information without the full complexity of a conventional camera system, resolving the contradiction between measurement precision and device complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs a cost-effective sensor array instead of an expensive camera system. The sensor array provides sufficient position detection capability at a lower hardware cost and computational requirement, addressing the contradiction between obtaining detailed position information and reducing system complexity.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Measurement precision

If a camera is installed to capture user images, then user position can be tracked, but the device size increases and miniaturization becomes difficult

Engineering Contradiction:
Improveuser position tracking capabilityVSAvoiddevice size
Core Design Contradiction:
Measurement precisionVSVolume of moving object

Solution Approach 1:

The patent extracts the core position detection function from the complete camera system, implementing it with a compact sensor array that requires minimal space. This allows user position tracking to be achieved in a miniaturized form factor, resolving the contradiction between tracking capability and device size.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of manufacture

If a sensor array is used to detect user presence, then the device cost is reduced, but the position detection accuracy decreases

Engineering Contradiction:
Improvedevice costVSAvoidposition detection accuracy
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent transitions from conventional two-dimensional camera imaging to one-dimensional sensor array detection. This dimensional change simplifies the detection system and reduces cost while maintaining sufficient position detection accuracy by focusing on the essential spatial information needed for user positioning.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Loss of information

If a camera system is implemented, then comprehensive user information can be obtained, but privacy invasion risks increase

Engineering Contradiction:
Improveuser position information completenessVSAvoidprivacy invasion risk
Core Design Contradiction:
Loss of informationVSObject-affected harmful factors

Solution Approach 1:

The patent extracts only the position-related information from the complete image data that a camera would capture. By using a one-dimensional sensor array that provides position information without detailed visual content, the system obtains necessary user position information while minimizing privacy invasion risks.

Inventive Principle:
Principle #2Taking out (Extraction)

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

The solution enables detailed user position tracking while minimizing privacy invasion and allowing for miniaturization, as the sensor array can be placed flexibly, providing accurate and efficient user position determination.

Implementation Method 1

a sensor configured to include a plurality of pixels disposed in a first direction... determine position information on a user using sensing data sensed by the sensor

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentUS11132537B2Electronic device for determining position of user based on image pixels, and method of controlling said device
Publication Date: 2021.09.28 SAMSUNG ELECTRONICS CO LTD
  • US11132537B2 patent drawing
  • US11132537B2 patent drawing
  • US11132537B2 patent drawing

AI summary

This electronic device comprises: a sensor including a plurality of pixels disposed in a first direction; a processor electrically connected to the sensor; and a memory electrically connected to the processor. When implemented, the processor uses sensing data sensed by the sensor and determine user position information, and the memory may store instructions for carrying out a movement corresponding to the user position information.