Vehicle Sensor Self-Calibration via Machine-Readable Positioning Codes

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Solution Overview

Problem

Existing vehicle sensor calibration methods are time-consuming and prone to user error, making them inefficient for installing, upgrading, and replacing sensor packages in vehicles.

Innovation Solution

A detection system that includes a vehicle sensor module and a positioning feature with a machine-readable code, allowing the vehicle controller to detect and calibrate the sensor module based on predefined calibration data, enabling self-calibration without human intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual calibration methods are used for vehicle sensor modules, then calibration can be performed with simple equipment, but the process is time-consuming and prone to user error

Engineering Contradiction:
Improvecalibration speedVSAvoidcalibration accuracy
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The sensor module performs self-calibration by automatically detecting the positioning feature and applying calibration data without requiring manual intervention. The system uses its own sensor capabilities to detect the positioning feature and execute calibration, eliminating the need for external calibration equipment and reducing both time and potential for human error.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A positioning feature with machine-readable code serves as an intermediary between the sensor module and the calibration process. This intermediary contains predefined calibration data that the sensor module can automatically read and apply, bridging the gap between the sensor and the calibration information without requiring manual intervention or complex calibration equipment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of time

If automated self-calibration is implemented using machine-readable codes, then calibration time is reduced and errors are prevented, but the system complexity increases due to additional positioning features and code reading capabilities

Engineering Contradiction:
Improvecalibration timeVSAvoidsystem complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The sensor module leverages its existing multi-functional capabilities by using the same sensor array and processing unit for both detecting vehicle surroundings and reading the machine-readable code on the positioning feature. This allows the system to perform calibration without adding dedicated hardware, as the existing sensor system handles multiple functions including calibration detection.

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

3Ease of operation

If positioning features with machine-readable codes are deployed on vehicle exteriors or infrastructure, then calibration data can be automatically accessed, but the manufacturing and installation complexity increases

Engineering Contradiction:
Improvecalibration operation easeVSAvoidpositioning feature manufacturing
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The positioning features are implemented as simple, inexpensive elements such as stickers or painted markings containing machine-readable codes. These can be easily applied to vehicle exteriors or infrastructure surfaces without complex manufacturing processes, and can be replaced if needed without significant cost or effort.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS10984299B1Detection systems, apparatus, and related methods for use with vehicle sensor modules
Publication Date: 2021.04.20 TOYOTA JIDOSHA KK
  • US10984299B1 patent drawing
  • US10984299B1 patent drawing
  • US10984299B1 patent drawing

AI summary

Detection systems, apparatus, and related methods for use with vehicle sensor modules are disclosed. A disclosed detection system for one or more vehicles includes a vehicle sensor module and a positioning feature disposed on a vehicle exterior or infrastructure. The positioning feature includes a machine-readable code associated with predefined calibration data of the positioning feature. The detection system also includes a vehicle controller configured to detect, via the vehicle sensor module, the positioning feature when the positioning feature is visible to the vehicle sensor module. The vehicle controller is configured to obtain the predefined calibration data in response to reading the machine-readable code and calibrate the vehicle sensor module based on the predefined calibration data.