Wireless Device Orientation and Positioning for Indoor Accuracy
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Solution Overview
Problem
Existing methods for determining the orientations and positions of anchor nodes in indoor positioning systems are inefficient and lack accuracy, especially in environments where GNSS signals are weak, requiring manual or time-consuming estimation.
Innovation Solution
A collaborative approach using wireless technology for angle and ranging measurements among electronic devices, combined with GNSS positioning measurements, to perform a global computation for accurate and fast determination of orientations and positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual or conventional estimation methods are used to determine orientations and positions of anchor nodes, then the system can obtain position information, but the process is time-consuming and lacks accuracy
Solution Approach 1:
The patent replaces manual mechanical positioning methods with automated wireless measurement systems. Electronic devices use wireless communication to automatically perform angle and ranging measurements, substituting human-operated mechanical processes with electronic automation, thereby eliminating time loss while maintaining high precision.
Solution Approach 2:
The system enables electronic devices to self-determine their orientations and positions through autonomous wireless measurements. Each device independently performs measurements with neighboring devices and participates in global computation without requiring external manual intervention, achieving both speed and accuracy simultaneously.
2Measurement precision
If GNSS measurements are used for positioning, then absolute position information can be obtained, but the accuracy is insufficient in indoor environments
Solution Approach 1:
The patent merges multiple positioning approaches by combining GNSS absolute position measurements with wireless relative measurements (angle and ranging). This hybrid approach leverages the strengths of both methods: GNSS provides absolute reference when available, while wireless measurements provide reliable relative positioning, achieving high accuracy in indoor environments where GNSS signals are weak or unavailable.
Solution Approach 2:
The positioning system uses a composite measurement strategy that integrates different measurement types (GNSS positioning measurements, wireless angle measurements, and wireless ranging measurements). This composite approach creates a robust positioning solution that maintains reliability across varying environmental conditions, particularly in indoor settings.
3Adaptability or versatility
If anchor nodes are re-distributed to improve positioning coverage, then the positioning system can cover more area, but the orientations and positions cannot be obtained accurately in a short time
Solution Approach 1:
The patent implements preliminary automated measurement capabilities that are ready to execute immediately when anchor nodes are deployed or re-distributed. The system pre-configures electronic devices to perform wireless angle and ranging measurements automatically, eliminating the time-consuming manual setup phase and enabling rapid acquisition of orientation and position information regardless of node distribution changes.
Data Source
AI summary
A method for determining orientations and positions of a plurality of electronic devices is applied for at least 3 or 4 electronic devices in an area, and comprises that each electronic device obtains angle measurements, ranging measurements and positioning measurements of the electronic device; one of the at least 3 or 4 electronic devices and/or a server collects the angle measurements, the ranging measurements and the positioning measurements of each electronic device and determines an orientation and a position of each electronic device based on the collected measurements by performing a global computation.