Indoor Positioning via Distributed Label Arrays

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Solution Overview

Problem

Existing positioning technologies, such as GNSS and radio multipoint ranging, face limitations in indoor precision due to signal blockage and complexity, while camera-based systems have blind areas and difficulty in determining object positions.

Innovation Solution

A positioning system that lays labels with preset precision in an area, using RFID, magnetic stripe, or optical labels, where each label carries unique identification information, allowing for precise position determination through label reading and conversion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If GNSS or radio multipoint ranging is used for positioning, then positioning can be implemented, but positioning precision deteriorates due to signal blockage and system complexity in indoor environments

Engineering Contradiction:
Improvepositioning precisionVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The positioning area is segmented into multiple zones with labels distributed throughout. Instead of using a complex centralized system, each label is an independent positioning element that can be individually read by the position acquisition device. This segmentation eliminates the need for complex synchronization and networking infrastructure while improving positioning precision through localized label reading.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If camera-based positioning is used, then positioning can be implemented, but positioning precision deteriorates due to blind areas and difficulty in determining object positions

Engineering Contradiction:
Improvepositioning precisionVSAvoidobject position detection difficulty
Core Design Contradiction:
Measurement precisionVSDifficulty of detecting and measuring

Solution Approach 1:

Labels are introduced as intermediary elements between the position acquisition device and the positioning system. These labels carry identification information that directly indicates position, eliminating the need for complex image processing and object recognition. The labels serve as mediators that simplify position detection and eliminate blind areas associated with camera-based systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If labels are laid with preset positioning precision, then positioning precision is improved, but the quantity of labels and system complexity increases

Engineering Contradiction:
Improvepositioning precisionVSAvoidnumber of labels
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

Multiple functions are merged into the label system. The labels not only provide position identification but also serve as the positioning reference system itself. By combining the positioning infrastructure with simple identification labels, the system achieves high positioning precision without requiring a large quantity of separate components or complex networking infrastructure.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11372075B2Positioning method, apparatus and system, layout method of positioning system, and storage medium
Publication Date: 2022.06.28 ZTE CORP
  • US11372075B2 patent drawing
  • US11372075B2 patent drawing
  • US11372075B2 patent drawing

AI summary

Provided are a positioning method, apparatus and system, a layout method for a positioning system and a storage medium. A plurality of labels is laid with preset positioning precision in an area to be positioned, where each label among the plurality of labels carries label information, where the label information corresponds to position information of a position of the each label. A position acquisition device reads first label information on a label at a distance not greater than the preset positioning precision from the position acquisition device; and the position acquisition device determines first position information of the position acquisition device according to the first label information.