Tire Tread Detection Using Camera and Laser Modules

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Solution Overview

Problem

Existing tire tread detection methods are inefficient and inaccurate, as they cannot simultaneously assess the integrity and depth of tire tread, leading to low efficiency, poor accuracy, and waste of manpower in tire tread wear detection.

Innovation Solution

A tire tread detection device and system that includes a main body with a cavity, a first camera module, and a laser module, which captures images and measures depth of the tire tread simultaneously, allowing for comprehensive determination of tire tread wear.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If visual observation by maintenance worker is used to detect tire tread wearing condition, then the detection method is simple and requires no special equipment, but the detection accuracy is poor and cannot guarantee consistent results

Engineering Contradiction:
Improvedetection method simplicityVSAvoidtread wearing detection accuracy
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent replaces manual visual observation with an automated detection system comprising a camera module for imaging and a laser module for depth measurement. The camera captures tire tread images while the laser measures tread depth, eliminating reliance on human experience and providing consistent, accurate measurements of tire wear conditions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If contact measurement by inspector is used to measure tire tread depth, then direct physical measurement is obtained, but the measured data has significant errors and manual detection efficiency is low

Engineering Contradiction:
Improvetread depth measurement capabilityVSAvoiddetection efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces manual contact measurement with non-contact optical and laser measurement technologies. The laser module projects laser lines onto the tire tread and measures depth through light reflection, while the camera captures images for visual inspection. This automated system eliminates manual operation errors and significantly improves detection efficiency for large-scale vehicle inspections.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces laser lines as an intermediary medium to measure tire tread depth. The laser module projects laser lines onto the tire surface, and the camera captures the deformation of these laser lines to calculate tread depth, providing accurate non-contact measurement without direct physical contact that causes measurement errors.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If separate detection methods are used for tire tread integrity and depth, then each parameter can be measured individually, but no device can quickly and accurately detect both simultaneously

Engineering Contradiction:
Improvetread parameters detection accuracyVSAvoiddetection time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent combines multiple detection functions into a single integrated device. The camera module simultaneously captures tire tread images for integrity assessment and works with the laser module to measure tread depth. This unified system detects both tread integrity and depth parameters in one operation, eliminating the need for separate detection processes and significantly reducing detection time.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The camera module serves multiple functions: capturing tire tread images for visual inspection of integrity and working with the laser module to measure tread depth through image analysis. This multi-functional design allows a single device to perform comprehensive tire tread detection, including both integrity assessment and depth measurement, improving efficiency and accuracy.

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

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 system enables fast and accurate detection of tire tread wear, significantly reducing manpower requirements and improving detection efficiency, while ensuring high accuracy in assessing tire tread integrity and depth.

Implementation Method 1

a laser line of the laser module passes through the second opening to reach the tire tread area of the tire to be measured to obtain depth data of the tire tread

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 2

the first camera module is configured to capture a tire tread area of a tire to be measured through the first opening to obtain a tire tread image

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS20250044078A1Tire tread detection device and tire tread detection system
Publication Date: 2025.02.06 SHENZHEN SMARTSAFE TECH CO LTD
  • US20250044078A1 patent drawing
  • US20250044078A1 patent drawing
  • US20250044078A1 patent drawing

AI summary

A tire tread detection device includes a main body. The main body is provided with a cavity, and a first opening and a second opening that are spaced along a first direction and are in communication with the cavity. The cavity is provided therein with a first camera module and a laser module, the first camera module is configured to capture a tire tread area of a tire to be measured through the first opening to obtain a tire tread image, and a laser line of the laser module passes through the second opening to reach the tire tread area of the tire to be measured to obtain depth data of the tire tread; a control assembly processes the obtained tire tread depth and image information of the tire tread and compares them with the original data to determine the wearing degree of the tire tread.