Autonomous Vehicle Heads-Up Display for Adverse Terrain Navigation

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Solution Overview

Problem

Autonomous vehicles face challenges in navigating through adverse weather conditions and off-road environments due to limitations in modern computer vision and sensor fusion systems, which can lead to situations where human intervention is necessary for safe operation.

Innovation Solution

A road condition heads-up display system that uses a combination of cameras, sensors, and augmented reality to provide the driver with real-time information about the road conditions, allowing them to take control and guide the vehicle through obscured or uncertain terrain, and then resume autonomous operation once safe.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If autonomous vehicle operation is implemented using modern computer vision and sensor fusion systems, then vehicle automation capability is improved, but the system fails to cope with bad weather conditions and off-road environments

Engineering Contradiction:
Improvevehicle automation capabilityVSAvoidsystem reliability in adverse conditions
Core Design Contradiction:
Extent of automationVSReliability

Solution Approach 1:

The patent introduces an intermediary human operator who can take control of the vehicle when the autonomous system encounters adverse conditions. The system includes a user interface that allows the human to intervene and provide guidance, serving as a mediator between the autonomous system and the vehicle control, thereby maintaining reliability in conditions where the autonomous system struggles.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically transitions between autonomous and manual control modes based on environmental conditions. The vehicle control system can switch from fully autonomous operation to human-operated mode when sensors detect adverse conditions such as snow, fog, or off-road terrain, allowing the operational mode to adapt to changing circumstances.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the vehicle operates in autonomous mode, then productivity is improved, but the system cannot handle unpredictable situations requiring human judgment

Engineering Contradiction:
Improvevehicle operation efficiencyVSAvoidability to handle unpredictable situations
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system incorporates feedback mechanisms where sensors continuously monitor environmental conditions and provide information to the control system. When unpredictable situations are detected, the system provides feedback to switch to manual mode, allowing the human operator to handle situations that fall outside the autonomous system's programming while maintaining efficient autonomous operation for predictable conditions.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If the system transitions from autonomous to manual control, then adaptability is improved, but loss of time occurs during mode switching

Engineering Contradiction:
Improveability to switch control modesVSAvoidtime lost during mode transition
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by continuously monitoring environmental conditions and preparing for potential mode transitions. Sensors detect adverse conditions in advance, allowing the system to proactively switch to manual mode before the autonomous system completely fails, reducing the time loss associated with emergency transitions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10696308B2Road condition heads up display
Publication Date: 2020.06.30 TAHOE RES LTD
  • US10696308B2 patent drawing
  • US10696308B2 patent drawing
  • US10696308B2 patent drawing

AI summary

Various systems and methods for providing a road condition heads up display system are provided herein. A road condition heads up display system, includes: a video display to present imagery captured by a camera system, the imagery including terrain around an autonomous vehicle, the terrain including a driving surface on which the autonomous vehicle operates; a vehicle control system coupled to the camera system and the video processor, the vehicle control system to: operate the autonomous vehicle in an autonomous mode; recognize a non-navigable portion of the terrain around the autonomous vehicle; present an augmented reality user interface on the video display, the augmented reality user interface used by an occupant of the autonomous vehicle to indicate a waypoint; and operate the autonomous vehicle in a non-autonomous mode according to the user input.