Directional Display Control for Automated Vehicles

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Solution Overview

Problem

Existing display technologies in moving objects, such as vehicles, often inadvertently display information to unintended directions, failing to specifically target traffic participants in a specific direction, especially when automated driving is engaged.

Innovation Solution

A display control apparatus and method that includes a display device with a detection unit to identify specific traffic participants and a control unit to restrict the visible direction of the display, ensuring that information is only presented to the intended target, using a louver structure or movable film to control the visible direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If a display device is provided in a moving object to present information to traffic participants, then information can be conveyed to pedestrians or drivers outside the vehicle, but the visible direction cannot be restricted to a specific target, causing information to be displayed to unintended directions

Engineering Contradiction:
Improveinformation delivery accuracyVSAvoiddisplay control complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The display device employs a louver structure with adjustable angles that can dynamically change the visible direction based on the detected position of the target traffic participant. The louver blades rotate to orient the display output toward the specific pedestrian or driver, enabling dynamic directional control rather than fixed display orientation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

A detection unit serves as an intermediary between the display control apparatus and the external environment. This detection unit identifies the position of target traffic participants, and the control unit uses this information to adjust the louver angle, thereby mediating the display output to reach the intended recipient accurately.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the visible direction of the display device is restricted using a louver structure, then information can be targeted to a specific direction, but the device complexity increases due to additional control mechanisms

Engineering Contradiction:
Improvetargeted information deliveryVSAvoidlouver control mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The louver structure serves multiple functions: it restricts the visible direction of the display, protects the display from external factors, and enables directional targeting of information. By integrating these functions into a single mechanism, the patent reduces overall system complexity while achieving reliable targeted information delivery.

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

Solution Approach 2:

The system changes the angular parameter of the louver blades to control the visible direction of the display. By adjusting the louver angle parameter based on the detected position of the target traffic participant, the system achieves precise directional control without requiring complex mechanical positioning systems.

Inventive Principle:
Principle #35Parameter changes

3Extent of automation

If automated driving is engaged, then the driver is disengaged from operation, but the ability to indicate intention to external traffic participants is lost

Engineering Contradiction:
Improveautomated driving capabilityVSAvoidintention communication
Core Design Contradiction:
Extent of automationVSLoss of information

Solution Approach 1:

The automated vehicle uses the display control apparatus to communicate its intentions to external traffic participants autonomously. The detection unit identifies targets, the control unit determines the appropriate message and direction, and the display device delivers the information, enabling the vehicle to self-communicate without driver intervention.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The display control apparatus acts as an intermediary between the automated vehicle system and external traffic participants. It translates the vehicle's operational status and intentions into visual information that can be understood by pedestrians and other drivers, bridging the gap created by automated driving disengagement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11328632B2Display control apparatus, control method of display control apparatus, moving object, and storage medium for controlling visible direction in display device
Publication Date: 2022.05.10 HONDA MOTOR CO LTD
  • US11328632B2 patent drawing
  • US11328632B2 patent drawing
  • US11328632B2 patent drawing

AI summary

A display control apparatus comprises a display device that is a display device to be provided in a moving object that can travel, and outputs image information such that a visible direction from the outside of the moving object is restricted. The display control apparatus detects an image information presentation target that is present around the moving object, and controls the visible direction in the display device to a predetermined direction. The display control apparatus controls the predetermined direction such that an output of the display device is visible to the detected image information presentation target.