Wearable AR Device Vehicle Anchor Positioning
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Solution Overview
Problem
Wearable augmented reality (AR) devices struggle to accurately determine their position and direction within a vehicle, leading to incorrect output of AR content due to the inertial measurement unit (IMU) being affected by the vehicle's movement, which cannot differentiate between the vehicle's movement and the user's movement inside it.
Innovation Solution
The wearable AR device includes a processor and memory to determine if it is within a vehicle by using sensor information, and if so, it checks for anchor devices to communicate with, allowing it to output AR content based on the vehicle's space, thereby differentiating between the vehicle's and user's movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the wearable AR device uses IMU to determine position and direction, then the device can track user movement, but the IMU cannot differentiate between vehicle movement and user movement causing inaccurate AR content output
Solution Approach 1:
The patent introduces an intermediary system consisting of anchor devices installed in the vehicle and a communication unit that exchanges position information between the wearable AR device and the vehicle's control system. This intermediary mechanism allows the system to distinguish between vehicle movement and user movement by comparing IMU data with anchor device position data, thereby resolving the contradiction between tracking user movement and maintaining AR content accuracy.
Solution Approach 2:
The patent implements a feedback mechanism where the wearable AR device continuously exchanges position information with the vehicle's control system through the communication unit. The system uses this feedback to adjust and correct the position and direction detection, filtering out the impact of vehicle movement while maintaining accurate tracking of user movement within the vehicle.
2Device complexity
If the wearable AR device operates independently without vehicle communication, then the device structure remains simple, but the device cannot accurately determine its position within the vehicle space
Solution Approach 1:
The patent applies multi-functionality by enabling the wearable AR device to operate in multiple modes: independent mode for basic AR functions and vehicle-integrated mode for enhanced position determination. The communication unit and anchor device interface allow the same wearable device to leverage vehicle infrastructure for improved positioning while maintaining operational independence when needed, thus balancing complexity and precision requirements.
Data Source
AI summary
A method of providing an augmented reality (AR) content in a vehicle, and/or a wearable AR device and an electronic device for performing a method. The wearable AR device may include a processor and a memory storing instructions to be executed by the processor, and when the instructions are executed by the processor, the processor is configured to: determine whether the wearable AR device is in a space of the vehicle based on at least one of information received from the vehicle or a value measured using at least one sensor of the wearable AR device; when it is determined that the wearable AR device is not in the space of the vehicle, output an AR content corresponding to a space around the wearable AR device based on the value measured using the at least one sensor of the wearable AR device; when it is determined that the wearable AR device is in the space of the vehicle, determine whether there are anchor devices of the vehicle capable of communicating with the wearable AR device; and when it is determined that there are the anchor devices capable of communication, output an AR content corresponding to a space of the vehicle around the wearable AR device by communicating with the anchor devices.