UWB and AR Lost-Device Localization for Precise Nearby Search
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Solution Overview
Problem
Existing methods for locating lost devices, such as earphones or headsets, are ineffective as they require direct communication with a server, and GPS coordinates often lead to large search areas, making it difficult for users to find the devices.
Innovation Solution
Utilizing ultra-wide band (UWB) communication and augmented reality (AR) to establish near field connections with lost devices, enabling precise location identification and intuitive guidance through AR interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS coordinates are used to locate lost devices, then the location can be obtained, but the search area becomes too large making it difficult to find the device
Solution Approach 1:
The patent segments the location information into two levels: GPS coordinates for macroscopic location and UWB relative position for microscopic positioning. The AR interface further segments the visual field to highlight the exact device location within the broader GPS area, effectively dividing the search problem into manageable scales.
Solution Approach 2:
The patent introduces an AR interface as an intermediary between GPS coordinates and the physical device. This intermediary overlays digital location markers on the real-world view, bridging the gap between abstract coordinate data and concrete physical location, making it easier for users to find devices.
2Measurement precision
If existing location services are used for devices without server communication capability, then the device information can be transmitted to server, but the location accuracy remains insufficient for easy device discovery
Solution Approach 1:
The patent adds a new dimension to location information by incorporating AR visual overlay on top of traditional GPS coordinates. This transforms 2D coordinate data into 3D spatial context within the user's field of view, enabling intuitive device location identification without requiring complex server communication from the lost device itself.
Solution Approach 2:
The patent replaces the mechanical approach of requiring direct server communication from the lost device with a passive tracking approach. The lost device simply transmits its identification information to nearby peripheral devices, which then relay location data through the server, eliminating the need for active server communication capabilities in the lost device while maintaining location tracking.
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
Enhances the efficiency of finding lost devices by providing accurate, real-time location guidance using UWB and AR, reducing search complexity and improving user experience.
Implementation Method 1
an ultra-wide band (UWB) antenna; a UWB communication circuit connected to the UWB antenna
Data Source
AI summary
An electronic device according to an embodiment includes: a camera; a display; a location measuring circuit; an ultra-wide band (UWB) antenna; a UWB communication circuit; a first wireless communication circuit configured to support near field communication; a second wireless communication circuit configured to support cellular communication; and at least one processor, wherein the at least one processor is configured to: acquire information about an external device from a server using the second wireless communication circuit; establish a near field communication connection with the external device through the first wireless communication circuit based on the electronic device being within a specified distance from the external device; transmit a request for activating a UWB function of the external device to the external device; identify the location of the external device with respect to the electronic device based on a UWB signal received from the external device; and output an augmented reality (AR) interface to the display based on image data acquired using the camera and the identified location of the external device.