Wireless Path Verification Using Location Certificates
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Solution Overview
Problem
Existing methods for tracking and verifying the paths of mobile wireless devices in monitored spaces are inefficient, especially in closed environments, and lack high-resolution accuracy, particularly in sensitive areas where user authentication and disinfection processes require precise location tracking.
Innovation Solution
A system utilizing limited-range wireless transceivers and receivers to transmit and receive location certificates, which include device IDs and transceiver/receiver IDs, allowing mobile devices to store and verify paths by comparing them to approved paths, ensuring accurate and secure authentication and disinfection processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing tracking methods are used in closed environments, then path tracking is possible, but high-resolution accuracy is lacking
Solution Approach 1:
The monitored space is divided into multiple zones with wireless transceivers deployed at predefined locations. Each transceiver independently tracks and certifies device presence in its specific zone, enabling high-resolution path verification through segmented spatial monitoring rather than relying on single-point tracking methods
Solution Approach 2:
Location certificates are introduced as intermediary data structures that mediate between the wireless transceivers and the verification unit. These certificates contain device ID, transceiver ID, and location information, serving as trusted intermediaries that enable accurate path reconstruction and verification without direct continuous communication between transceivers and verification systems
2Measurement precision
If wireless transceivers are deployed at predefined locations, then path verification accuracy is improved, but infrastructure complexity increases
Solution Approach 1:
Mobile wireless devices serve multiple functions: they are both the objects being tracked and active participants in the tracking system by transmitting device IDs and receiving location certificates. This multi-functionality reduces the need for dedicated tracking infrastructure while maintaining high-resolution path verification capabilities
Solution Approach 2:
The system uses existing mobile wireless devices' own wireless communication capabilities to perform tracking. Devices self-identify by transmitting their device IDs and self-localize by receiving and storing location certificates from transceivers, eliminating the need for complex external tracking infrastructure
3Reliability
If location certificates are transmitted and stored, then path verification reliability is enhanced, but data processing requirements increase
Solution Approach 1:
Location certificates are generated and stored in advance during device movement through the monitored space. The device collects certificates from multiple transceivers along its path before verification is needed, enabling efficient batch processing and comparison against approved paths without real-time processing bottlenecks
Data Source
AI summary
Provided herein are methods and systems for verifying a path in a monitored space, comprising transmitting a device identification (ID) of the mobile wireless device while the mobile wireless device moves through a monitored space, receiving one or more location certificates transmitted, in response to reception of the device ID, by one or more wireless transceivers deployed at a predefined location in the monitored space and having a limited transmission range, each location certificate comprising at least the device ID and a transceiver ID of the respective wireless transceiver, storing the one or more location certificates, and transmitting the one or more location certificates to one or more verification units configured to verify a path of the mobile wireless device in the monitored space estimated according to the predefined location of the one or more wireless transceivers identified by the transceiver ID extracted from the one or more location certificates.