Automated Valet Parking Lighting Control for Landmark Recognition

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Solution Overview

Problem

Existing automated valet parking systems face challenges in reducing the hindrance and improper influence of vehicle front lighting on the recognition of autonomous driving vehicles and their surroundings, particularly in determining optimal illuminance suppression points within parking environments.

Innovation Solution

An automated valet parking system that includes an illuminance information acquisition unit, an illuminance suppression point setting unit, and an illuminance suppression instruction unit, which sets and instructs the autonomous driving vehicle to suppress illuminance at specific points based on parking place map information and illuminance data, thereby reducing the impact of front lighting on recognition and surroundings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the front lighting devices of the autonomous driving vehicle are turned on to illuminate the parking place, then the visibility and recognition capability of the vehicle is improved, but the illuminance causes hindrance to the recognition of landmarks and improper influence on the surroundings

Engineering Contradiction:
Improverecognition capabilityVSAvoidhindrance to landmark recognition and improper influence on surroundings
Core Design Contradiction:
Measurement precisionVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by suppressing illuminance specifically at landmark positions and areas surrounding the parking place, while maintaining normal illuminance at other positions. The illuminance suppression point setting unit identifies specific locations (landmarks and surrounding areas) and suppresses lighting only at those local positions, allowing the vehicle to maintain good visibility elsewhere while eliminating the harmful effects of excessive illuminance at critical locations.

Inventive Principle:
Principle #3Local quality

2Object-generated harmful factors

If the illuminance of front lighting devices is suppressed at specific points to reduce harmful effects, then the hindrance to recognition and improper influence on surroundings is reduced, but the visibility and recognition capability of the vehicle may be degraded

Engineering Contradiction:
Improvehindrance to landmark recognition and improper influence on surroundingsVSAvoidrecognition capability
Core Design Contradiction:
Object-generated harmful factorsVSMeasurement precision

Solution Approach 1:

The patent maintains recognition capability by suppressing illuminance only at specific local positions (landmarks and surrounding areas) rather than broadly reducing illuminance throughout the entire field of view. This localized approach ensures that the vehicle's recognition systems can still function properly in areas where illuminance is not suppressed, while eliminating harmful effects only where necessary.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS11834036B2Automated valet parking server, autonomous driving vehicle, automated valet parking system
Publication Date: 2023.12.05 TOYOTA JIDOSHA KK
  • US11834036B2 patent drawing
  • US11834036B2 patent drawing
  • US11834036B2 patent drawing

AI summary

There is provided an automated valet parking server that causes an autonomous driving vehicle in a parking place to perform automated valet parking by instructing the autonomous driving vehicle. The automated valet parking server includes an illuminance information acquisition unit configured to acquire illuminance information of front lighting devices of the autonomous driving vehicle, an illuminance suppression point setting unit configured to set an illuminance suppression point which is a position in the parking place at which illuminance of the front lighting devices of the autonomous driving vehicle is suppressed based on parking place map information of the parking place and the illuminance information of the front lighting devices of the autonomous driving vehicle, and an illuminance suppression instruction unit configured to instruct the autonomous driving vehicle to perform illuminance suppression at the illuminance suppression point.