Head-Mounted Sensor System for Continuous Virtual Navigation

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Solution Overview

Problem

Current wearable detection systems for mapping surfaces are limited in their ability to provide continuous navigation within a virtual environment, often restricting users to predefined points and lacking the ability to accurately render transparent and edge-defined surfaces.

Innovation Solution

A head-mounted sensor system incorporating a combination of sensors such as LIDAR, optical, and ultrasonic sensors, synchronized with movement sensors, to generate a three-dimensional wireframe and texture representation of spaces, allowing for continuous navigation and identification of transparent surfaces and edges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a head-mounted sensor system uses multiple sensors (LIDAR, ultrasonic, optical) to detect surfaces and generate 3D wireframe representations, then the ability to navigate continuously within a virtual environment and identify transparent surfaces is improved, but the device complexity and synchronization requirements increase

Engineering Contradiction:
Improvecontinuous navigation capabilityVSAvoidsensor synchronization system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system divides the detection task among multiple specialized sensors (LIDAR for distance, ultrasonic for transparent surfaces, optical for textures) and processes their outputs separately through dedicated circuits before integration. This segmentation allows each sensor to operate independently while maintaining overall system coordination through the synchronization circuit.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The synchronization circuit acts as an intermediary that coordinates the outputs from multiple independent sensors (LIDAR, ultrasonic, optical) and movement sensors. It reconciles timing differences between sensors and integrates their data streams into a unified output that drives the virtual environment rendering, enabling continuous navigation without requiring direct complex interactions between all sensor components.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the system synchronizes outputs from multiple sensors to provide real-time data for virtual environment rendering, then the realism and usability of the virtual environment are enhanced, but the processing time and computational requirements increase

Engineering Contradiction:
Improvetexture registration accuracyVSAvoidreal-time data processing time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The synchronization circuit is configured to pre-coordinate the timing of sensor outputs before data processing begins. By establishing synchronized timing relationships in advance and continuously maintaining them, the system avoids time-consuming synchronization calculations during real-time operation, enabling efficient processing of sensor data for virtual environment rendering.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system replaces complex post-processing synchronization algorithms with a hardware-based synchronization circuit that directly coordinates sensor outputs in real-time. This electrical/electronic synchronization mechanism is faster and more reliable than software-based timing coordination, reducing processing delays while maintaining accurate texture registration.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Enables users to navigate virtually through spaces with high fidelity, including transparent surfaces and edges, by providing real-time data synchronization and accurate texture registration, enhancing the realism and usability of the virtual environment.

Implementation Method 1

a first sensor mounted on the helmet, the first sensor being configured to detect distances between the first sensor and surfaces around the helmet using a laser

Methodology Applied
Scientific EffectLIDAR: LIDAR

Implementation Method 2

a second sensor mounted on the helmet, the second sensor being configured to detect distances between the second sensor and the surfaces using sound

Methodology Applied
Scientific EffectUltrasonic ranging: Ultrasound

Data Source

PatentUS10579138B2Head-mounted sensor system
Publication Date: 2020.03.03 RESCAN INC
  • US10579138B2 patent drawing
  • US10579138B2 patent drawing
  • US10579138B2 patent drawing

AI summary

Systems and method of mapping spaces include a head-mounted sensor array. The array includes sensors configured to both measure distances within spaces and capture images of the spaces. This data may be used to generate continuously navigable virtual simulations of the spaces. Mapping of the spaces may include movable objects such as doors, transparent objects such as windows, and transitions between floors.