Dynamic Vision Visor Using LIDAR Sonification for Navigation

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Solution Overview

Problem

Individuals with visual impairments face challenges in navigating their surroundings due to limited information about their environment, as existing tools like echolocation provide only rough object location and not detailed information, which can be impaired by atmospheric conditions.

Innovation Solution

A system comprising a frequency emitting device, a processor, and a sound emitting device that converts environmental data into a three-dimensional sonification, where tone represents horizontal position, volume indicates properties like distance, and time represents vertical position, using LIDAR, RADAR, or SONAR systems for continuous data updates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If echolocation is used to locate objects, then object location information can be obtained, but the information is only rough and lacks detail, and is impaired by atmospheric conditions

Engineering Contradiction:
Improveenvironmental information detailVSAvoidinformation accuracy under atmospheric conditions
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The patent replaces acoustic echolocation with optical LIDAR technology. Instead of using sound waves that are impaired by atmospheric conditions, the system uses laser light to emit signals and detect reflections, providing detailed environmental information without being affected by humidity or wind. This substitution of mechanical/acoustic system with optical system resolves the contradiction between information detail and reliability under atmospheric conditions.

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

2Loss of information

If LIDAR, RADAR, or SONAR systems are used to capture environmental data, then detailed and dynamic environmental information can be obtained, but the system complexity increases

Engineering Contradiction:
Improveenvironmental data detailVSAvoidsystem structure
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent employs LIDAR technology that serves multiple functions: it captures detailed spatial information, measures distance through time-of-flight calculations, and provides dynamic environmental mapping. By using a single multi-functional LIDAR system rather than separate specialized devices, the patent reduces overall system complexity while maintaining high information detail. The same optical system handles both emission and detection, and the processor integrates multiple data types into a unified environmental model.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If real-time audio feedback is provided to visually impaired individuals, then navigation and object recognition are enhanced, but the device complexity and processing requirements increase

Engineering Contradiction:
Improvenavigation capabilityVSAvoidprocessing system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts and prioritizes only the most critical environmental features for audio feedback to visually impaired users. Instead of transmitting all captured LIDAR data, the system identifies salient objects and spatial relationships, converting only this essential information into audio signals. This extraction approach reduces processing requirements and device complexity while maintaining enhanced navigation capability, as users receive focused information about obstacles, pathways, and important environmental features.

Inventive Principle:
Principle #2Taking out (Extraction)

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 visually impaired individuals to perceive their environment in a more detailed and dynamic manner, providing real-time audio feedback that enhances navigation and object recognition, while also being applicable for sighted individuals in low-light or specific environments.

Implementation Method 1

the frequency emitting device and the frequency receiving device is one of a LIDAR system

Methodology Applied
Scientific EffectLIDAR: LIDAR

Implementation Method 2

the frequency emitting device and the frequency receiving device is one of a LIDAR system, a RADAR system

Methodology Applied
Scientific EffectRADAR: Radar

Implementation Method 3

the frequency emitting device and the frequency receiving device is one of a LIDAR system, a RADAR system, or a SONAR system

Methodology Applied
Scientific EffectSONAR: Sonar

Implementation Method 4

the processor is adapted to differentiate between each sent and received signal and compile an array of data based on the received signals. The processor converts the array of data into a sonification of the environment

Methodology Applied
Scientific EffectSonification:

Data Source

PatentUS11786407B2Dynamic vision enabling visor
Publication Date: 2023.10.17 ASSOCIATED UNIVERSITIES INC
  • US11786407B2 patent drawing
  • US11786407B2 patent drawing
  • US11786407B2 patent drawing

AI summary

Systems of presenting environmental data include a frequency emitting device, a frequency receiving device, wherein the frequency receiving device is tuned to receive a reflected signal from the frequency emitting device, a processor, and a sound emitting device adapted to play a sound transmission. The processor is programmed to compile data from the reflected signal and convert the data from the reflected signal into a sound transmission.