Wearable AR Tracking Handoff Across External Devices
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Solution Overview
Problem
Existing wearable devices struggle to maintain continuous tracking and communication with external objects that move out of the user's field of view, disrupting the augmented reality experience.
Innovation Solution
A wearable device equipped with sensors, a camera, and communication circuitry that establishes a communication link with external electronic devices to continue tracking and providing information about external objects even when they move out of the user's field of view by switching to another device in the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wearable device relies solely on its own camera and sensors to track external objects, then the device structure remains simple, but tracking continuity is disrupted when objects move out of the user's field of view
Solution Approach 1:
The patent combines multiple wearable devices into a collaborative tracking system where each device contributes its observational data. When one device's field of view loses an external object, other devices in the network maintain tracking, ensuring continuous monitoring without requiring any single device to have omnidirectional capabilities.
Solution Approach 2:
Each wearable device in the network performs multiple functions: it tracks objects within its own field of view, receives tracking data from other devices, and can take over tracking when others lose the target. This multi-functionality allows the system to maintain reliability without adding specialized components to each device.
2Reliability
If the wearable device establishes communication links with multiple external electronic devices to maintain continuous tracking, then tracking continuity is improved, but communication complexity increases
Solution Approach 1:
The patent segments the tracking task across multiple devices in the network, with each device responsible for monitoring specific regions or objects. This segmentation allows the system to maintain continuous tracking through distributed observation rather than requiring a single device to handle all tracking independently, reducing individual device communication complexity.
Solution Approach 2:
The system introduces a server as an intermediary that coordinates communication between wearable devices. The server manages tracking data exchange, device selection, and information sharing, simplifying the communication protocol each device must implement while enabling complex multi-device collaboration for continuous tracking.
3Adaptability or versatility
If the wearable device uses only local sensors and camera, then the device cost and power consumption remain low, but the ability to track objects outside field of view is lost
Solution Approach 1:
The system performs preliminary tracking actions through multiple devices simultaneously. When an external object is first detected, multiple wearable devices begin tracking it in parallel, ensuring that if one device loses the target, others are already positioned and ready to maintain continuous observation without requiring additional energy-intensive search operations.
Solution Approach 2:
Each wearable device in the network contributes its own sensing and processing capabilities to the collective tracking effort. Devices self-organize into a cooperative network where each participant serves the common tracking goal using its own resources, eliminating the need for a centralized high-power tracking system while achieving extended coverage.
Data Source
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AI summary
A processor of a wearable device, according to one embodiment, can display a first visual object corresponding to an external object on a display. The processor can: identify, on the basis of the direction of a gaze toward the first visual object, indicated by sensor data of a sensor, a motion of the external object by using a camera; establish a communication link with at least one external electronic device capable of tracking the external object identified on the basis of the motion; and acquire information about the external object from the at least one external electronic device through the communication link on the basis of identifying that the display of the first visual object is stopped after the communication link is established, and display, on the display on the basis of the acquired information, a second visual object related to the external object.