Ordered Scan Pattern Positioning for Indoor Accuracy
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Solution Overview
Problem
Conventional methods for determining positional information, such as GPS, are inaccurate and unreliable in indoor or urban environments due to the need for long-distance signal transmission and reception, making them unsuitable for precise positioning over short distances.
Innovation Solution
The use of ordered scan patterns with emissions varying in properties like intensity, frequency, or polarization, received by receivers to derive positional information through synchronization and signal analysis, allowing for more accurate and reliable determination of location, depth, or orientation within a field of interest.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional GPS methods are used for determining positional information, then coverage area is large, but measurement precision deteriorates in indoor or urban environments
Solution Approach 1:
The patent segments the field of interest into multiple zones that are scanned sequentially by the emission source. Instead of relying on long-distance signals from remote satellites, the system divides the local environment into discrete regions and determines position by identifying which zone the object is in, based on the timing and characteristics of emissions received from different scan positions.
Solution Approach 2:
The patent introduces an intermediary ordered scan pattern as a reference framework between the emission source and the object. The scan pattern acts as a mediator that structures the emission sequence, allowing the receiver to correlate received emissions with specific spatial positions and timing, thereby enabling precise local positioning without direct reliance on distant satellite signals.
2Reliability
If long-distance signal transmission is used for positioning, then coverage area is extended, but reliability deteriorates in environments with signal blockage
Solution Approach 1:
The system performs preliminary action by establishing an ordered scan pattern before actual position determination. The emission source pre-defines a sequence of emission positions and timing, creating a known reference framework. This allows the receiver to reliably determine position by comparing received emissions against the predetermined scan pattern, without needing to transmit signals over unreliable long distances.
Solution Approach 2:
The patent employs periodic action through the ordered scan pattern, where the emission source periodically visits different positions in a predetermined sequence. This periodic scanning creates regular, predictable emission events that the receiver can use to determine position reliably, transforming the unreliable continuous long-distance transmission into structured periodic local emissions.
Data Source
AI summary
The technology disclosed relates to determining positional information about an object of interest is provided. In particular, it includes, conducting scanning of a field of interest with an emission from a transmission area according to an ordered scan pattern. The emission can be received to form a signal based upon at least one salient property (e.g., intensity, amplitude, frequency, polarization, phase, or other detectable feature) of the emission varying with time at the object of interest. Synchronization information about the ordered scan pattern can be derived from a source, a second signal broadcast separately, social media share, others, or and/or combinations thereof). A correspondence between at least one characteristic of the signal and the synchronization information can be established. Positional information can be determined based at least in part upon the correspondence.