Infrared Marker Triangular Arrangement for Vehicle Recognition

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Solution Overview

Problem

Existing vehicle recognition systems require sophisticated image processing to distinguish infrared signals from extraneous sources, making it difficult to accurately recognize two-wheeled vehicles without detracting from their aesthetic design.

Innovation Solution

A vehicle recognizing apparatus using three infrared markers placed at vertices of a virtual triangle on a two-wheeled vehicle, with the headlight within the triangle, allowing easy recognition by distributing the markers within existing vehicle components like turn-signal lights and side-view mirrors, eliminating the need for additional frameworks and complex image processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If infrared LEDs are disposed at multiple places on the preceding vehicle, then vehicle recognition accuracy is improved, but it is difficult to apply to two-wheeled vehicles and detracts from aesthetic beauty

Engineering Contradiction:
Improvevehicle recognition accuracyVSAvoidapplicability to two-wheeled vehicles
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The invention segments the infrared light source into three separate infrared LEDs positioned at specific locations (left turn signal, right turn signal, and rear position light) to form a triangular pattern. This segmentation allows the system to achieve accurate vehicle recognition through the distinctive triangular geometry while being easily applicable to two-wheeled vehicles without requiring complex mounting structures.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If infrared LEDs are disposed at multiple places on the preceding vehicle, then vehicle recognition accuracy is improved, but the aesthetic beauty of the vehicle is compromised

Engineering Contradiction:
Improvevehicle recognition accuracyVSAvoidaesthetic beauty of the vehicle
Core Design Contradiction:
Measurement precisionVSShape

Solution Approach 1:

The invention merges the infrared LEDs with existing vehicle lighting components (turn signals and position lights). The infrared LEDs are integrated into these existing elements, allowing the vehicle to emit infrared light for recognition purposes without adding separate aesthetic-impairing components. The infrared function is combined with the existing visual lighting system.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If sophisticated image processing function is used in the recognizing vehicle, then accurate distinction of infrared signals is improved, but system complexity increases

Engineering Contradiction:
Improveinfrared signal distinction accuracyVSAvoidimage processing system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The invention creates a distinctive triangular geometric pattern using infrared LEDs that mirrors the vehicle's physical structure. This geometric copying allows the recognizing system to identify the vehicle type by detecting the characteristic triangular arrangement of infrared sources, simplifying the image processing requirements compared to analyzing complex infrared signal patterns.

Inventive Principle:
Principle #26Copying

4Measurement precision

If three or more infrared LEDs are used in the preceding vehicle, then vehicle position recognition is improved, but it is difficult to determine distance and relative motion for two-wheeled vehicles

Engineering Contradiction:
Improvevehicle position recognitionVSAvoiddistance and relative motion determination
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The invention uses an asymmetric triangular arrangement of infrared LEDs positioned at specific locations on the vehicle body (left turn signal, right turn signal, and rear position light). This asymmetric geometric configuration provides distinctive spatial information that enables the recognizing system to determine both vehicle position and motion characteristics, including distance and relative motion, for two-wheeled vehicles.

Inventive Principle:
Principle #4Asymmetry

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 immediate and accurate recognition of two-wheeled vehicles without compromising their design, as the triangular arrangement of infrared markers is easily distinguishable from other infrared sources, reducing the complexity of image processing requirements.

Implementation Method 1

at least three infrared markers emitting infrared light; and a drive circuit causing each of the infrared markers to emit light

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Data Source

PatentUS7656283B2Vehicle recognizing apparatus
Publication Date: 2010.02.02 HONDA MOTOR CO LTD
  • US7656283B2 patent drawing
  • US7656283B2 patent drawing
  • US7656283B2 patent drawing

AI summary

A vehicle recognizing apparatus which does not require a sophisticated image processing function of a vehicle on a recognizing side and allows a recognized vehicle to be immediately and accurately recognized by a simple image processing system. A pair of first and second infrared markers on the left and right sides are, respectively, placed at a pair of left and right vehicle components. Furthermore, a third infrared marker is provided to form a virtual triangle which may be easily distinguished by a recognizing system from extraneous infrared light sources.