Work Vehicle Travel Time Tracking Using Satellite Positioning

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Solution Overview

Problem

Existing work vehicles face inaccuracies in calculating progress and time due to wheel slippage, especially during turning, which affects the accuracy of time-based management in work sites.

Innovation Solution

A work vehicle equipped with a satellite positioning module, traveling distance calculation section, and traveling time calculation section to determine actual traveling distance and time, along with a work management section for managing ground work, which includes a target traveling time setting section, progress degree calculation, and slip ratio calculation to account for slippage and differentiate between straight and turning traveling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If wheel rotation detection is used to calculate traveling distance, then the calculation method is simple, but measurement precision deteriorates due to wheel slippage

Engineering Contradiction:

Improvecalculation method complexityVSAvoidtraveling distance measurement precision

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent introduces satellite positioning data as an intermediary to obtain traveling distance. Instead of directly using wheel rotation data, the system calculates traveling distance based on the change in position coordinates obtained from satellite positioning, thereby eliminating the slippage error while maintaining calculation simplicity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If wheel rotation detection is used for traveling time calculation, then the system structure is simple, but reliability deteriorates due to accumulated errors

Engineering Contradiction:

Improvesystem structure complexityVSAvoidtraveling time calculation reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent uses satellite positioning data as an intermediary to calculate traveling time. By obtaining accurate position coordinates and calculating traveling distance based on position change rather than wheel rotation, the system eliminates accumulated errors from slippage while keeping the system structure relatively simple.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If small turning radius traveling is performed, then the vehicle's maneuverability is improved, but measurement precision deteriorates due to significant slippage

Engineering Contradiction:

Improvevehicle maneuverabilityVSAvoidtraveling distance measurement precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent introduces satellite positioning as an intermediary measurement method. During small turning radius operations where wheel slippage is significant, the system calculates traveling distance based on position coordinate changes from satellite data rather than wheel rotation, thereby maintaining measurement precision while preserving vehicle maneuverability.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Ease of manufacture

If wheel rotation-based calculation is used, then the method is easy to implement, but loss of information occurs due to slippage errors

Engineering Contradiction:

Improveimplementation easeVSAvoidtraveling distance information accuracy

Core Design Contradiction:

Ease of manufactureVSLoss of information

Solution Approach 1:

The patent uses satellite positioning data as an intermediary to obtain accurate traveling distance information. By calculating distance based on position coordinate changes rather than wheel rotation, the system prevents information loss due to slippage errors while maintaining implementation ease through the use of standard satellite positioning receivers.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This solution provides accurate time management and progress tracking, enabling operators to assess work completion and potential issues, such as slippage, allowing for timely adjustments and improving work efficiency by eliminating errors caused by wheel slippage.

Implementation Method 1

a satellite positioning module for outputting positioning data

Methodology Applied

Scientific EffectSatellite positioning:

Data Source

PatentEP3466232B1Work vehicle and time-based management system applicable to the work vehicle

Publication Date: 2022.04.27 KUBOTA CORP

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AI summary

There is a need for a work vehicle that allows accurate traveling time management in a work site traveling. A work vehicle includes a vehicle body mounting a traveling mechanism, an implement mounted on the vehicle body and configured to effect a ground work on a work site, a satellite positioning module 80 for outputting positioning data, a traveling distance calculation section 51 for calculating a traveling distance of the vehicle body based on the positioning data, a traveling time calculation section 52 for calculating an actual distance traveling time from a time required for traveling of traveling distance calculated by the traveling distance calculation section 51 and a work management section 50 for managing the ground work based on the actual distance traveling time.