Road Surface Image Display Priority Coordination

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Solution Overview

Problem

Existing image display devices on road surfaces face challenges in effectively notifying information to pedestrians due to potential interference between own-vehicle and surrounding-vehicle notifications, leading to unclear or misinterpreted messages.

Innovation Solution

An image display device equipped with an illuminator, communicator, and circuitry that evaluates priority levels of notification information and controls the display of own-vehicle and surrounding-vehicle images on the road surface to avoid interference, ensuring that important safety information is clearly communicated to pedestrians.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If multiple vehicles display notification images on the road surface simultaneously, then information dissemination coverage is improved, but notification clarity deteriorates due to interference between images

Engineering Contradiction:
Improveinformation dissemination coverageVSAvoidnotification clarity
Core Design Contradiction:
Quantity of substanceVSLoss of information

Solution Approach 1:

The system performs preliminary inter-vehicle communication to negotiate and determine display priorities before actually displaying notification images. This advance coordination ensures that when multiple vehicles wish to display information, their images are displayed in a coordinated manner that maintains clarity, with higher-priority information being displayed without obstruction from lower-priority images.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where vehicles exchange information about their notification priorities through inter-vehicle communication. Based on this feedback, each vehicle adjusts its display behavior to avoid interfering with higher-priority notifications, thereby maintaining overall notification clarity while still providing comprehensive information coverage.

Inventive Principle:
Principle #23Feedback

2Illumination intensity

If the illuminator displays notification images continuously, then information visibility is improved, but energy consumption increases

Engineering Contradiction:
Improveinformation visibilityVSAvoidenergy consumption
Core Design Contradiction:
Illumination intensityVSUse of energy by moving object

Solution Approach 1:

Instead of continuous display, the system employs periodic or intermittent display of notification images. The illuminator activates only when there is important information to convey or when safety considerations require visibility, thereby maintaining effective information visibility during critical moments while significantly reducing overall energy consumption during normal operation.

Inventive Principle:
Principle #19Periodic action

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

The solution enables clear and appropriate notification of safety information to pedestrians, reducing the likelihood of traffic accidents by prioritizing and coordinating the display of notification images based on inter-vehicle communication, thus enhancing the effectiveness of information dissemination.

Implementation Method 1

The illuminator is configured to send out light on a road surface around a first vehicle as an own vehicle, to display a first notification image on the road surface

Methodology Applied
Scientific EffectLight emission: Light

Data Source

PatentUS10311718B2Image display device for displaying images on a road surface
Publication Date: 2019.06.04 SUBARU CORP
  • US10311718B2 patent drawing
  • US10311718B2 patent drawing
  • US10311718B2 patent drawing

AI summary

An image display device includes an illuminator and a communicator. The illuminator is configured to send out light on a road surface around a first vehicle as an own vehicle, to display a first notification image on the road surface. The first notification image notifies information to surroundings of the first vehicle. The communicator is configured to perform inter-vehicle communication with a second vehicle other than the first vehicle. The illuminator is configured to display the first notification image on the basis of the inter-vehicle communication performed by the communicator.