Wireless Terminal Localization via Synchronized Receiver Arrays
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Solution Overview
Problem
Current methods for detecting, locating, and controlling two-way wireless terminals within defined local spaces face challenges such as low precision, privacy intrusion, high administrative costs for secure access, and the denial of electronic access to critical personnel due to illegal jamming, which are ineffective and costly.
Innovation Solution
A system utilizing an array of synchronized DLS receivers and a processor to detect and locate two-way wireless terminals through relative time of arrival calculations, enabling precise localization and control within three-dimensional boundaries, while allowing selective control of terminal alerts and operations, and remote control of systems outside these boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional radiolocation methods (single-receiver RDF or two-receiver RTOA) are used to locate wireless terminals, then the system complexity is low, but the measurement precision and boundary definition are poor
Solution Approach 1:
The system divides the reception function into multiple synchronized receivers distributed in three-dimensional space, with each receiver independently measuring signal parameters while the processor integrates results. This segmentation enables precise location through relative time of arrival measurements without requiring a single complex receiver system.
Solution Approach 2:
The patent transitions from two-dimensional receiver arrangements to a three-dimensional receiver array, adding the vertical dimension to location measurements. This three-dimensional configuration enables precise determination of terminal positions in 3D space through geometric intersection of signal arrival spheres, significantly improving boundary definition and location accuracy.
2Productivity
If multiple observers are used to sample group behavior or track individuals, then the coverage and sampling rate improve, but the coordination difficulty and measurement contamination increase
Solution Approach 1:
Multiple synchronized receivers are merged into a single coordinated measurement system through a common clock and centralized processor. The system combines measurements from all receivers to calculate terminal positions, achieving high sampling rates and comprehensive coverage while eliminating the coordination problems of independent observers through automated synchronized processing.
3Reliability
If illegal jamming devices are used to control wireless terminals within a facility, then the control effectiveness is high, but the reliability of electronic access for critical personnel is compromised
Solution Approach 1:
The system implements location-based differentiation of service quality: terminals within the defined local space receive controlled service (alerts silenced, communications restricted), while terminals outside the space maintain full service availability. This local quality differentiation enables secure facility access control without harmful jamming, ensuring critical personnel can access electronic communications when needed.
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
This system provides improved precision in tracking and controlling wireless terminals, reduces privacy intrusion, lowers administrative costs for secure access, and ensures uninterrupted access for critical personnel by using synchronized DLS receivers to accurately determine and manage wireless terminal positions and operations within defined spaces.
Implementation Method 1
employing signal peaking methods... use of relative time of arrival ('RTOA') radiolocation techniques
Data Source
AI summary
The present invention is broadly directed to systems and methods for gathering information about wireless transceiver devices in a defined boundary region. To this end, the disclosure is more particularly directed to gathering movement information (e.g., via detection and location) about two-way end-user wireless terminals within three-dimensional boundaries of defined local space (“DLS”) to allow for selective control of the terminals and other subsystems, as desired. Additionally, the data collected can be used to improve accuracy and precision regarding the prediction of behavior characteristics and tendencies of populations based on a sampling of observed terminals.