Ground Compaction Force Mapping for Accurate Pressing Assessment

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Solution Overview

Problem

Existing compaction management systems fail to accurately manage the compaction state of a target ground, as they either lack the ability to quantify the compaction pressing force or the number of pressing work cycles, leading to incomplete compaction assessment.

Innovation Solution

A compaction management system that includes a work machine with sensors to detect machine and work device posture, pressure, and dimensions, calculating compaction pressing positions and forces, and producing records to select the maximum pressing force for accurate compaction state management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If only compaction time is used to manage compaction state, then the system is simple to operate, but the measurement precision of compaction pressing force is insufficient

Engineering Contradiction:

Improvesimplicity of compaction managementVSAvoidprecision of compaction pressing force measurement

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent replaces simple time-based mechanical management with an electronic sensor system that automatically detects and records compaction pressing force. The sensor system substitutes manual or simplistic monitoring with automated electronic measurement, achieving both ease of operation and high measurement precision simultaneously.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a sensor as an intermediary device between the compaction machine and the ground being compacted. This sensor intermediary captures the actual pressing force data and transmits it to the management system, enabling accurate measurement without complicating the operation of the compaction machine itself.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Device complexity

If only number of pressing passes is tracked, then the device complexity is low, but the measurement precision of compaction state is insufficient

Engineering Contradiction:

Improvecomplexity of compaction management systemVSAvoidprecision of compaction state assessment

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent replaces simple pass-counting mechanical or manual systems with electronic sensor-based measurement. The sensor system automatically detects and records the actual pressing force applied during each pass, substituting crude counting methods with precise electronic measurement while maintaining automated operation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements a feedback mechanism where sensor data about actual pressing force is continuously fed back to the management system. This feedback loop allows the system to adjust and optimize compaction operations based on real-time measurements, achieving high measurement precision without excessive device complexity.

Inventive Principle:

Principle #23Feedback

3Ease of operation

If compaction pressing force is not measured, then the ease of operation is high, but the reliability of compaction state management deteriorates

Engineering Contradiction:

Improveoperational simplicityVSAvoidreliability of compaction state management

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent enables the compaction management system to self-measure and self-record pressing force data through integrated sensors. The system serves itself by automatically detecting, measuring, and storing compaction parameters without requiring external measurement equipment or manual intervention, maintaining ease of operation while improving reliability.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent introduces a sensor intermediary that automatically measures and communicates pressing force data to the management system. This intermediary device bridges the gap between the compaction operation and the management system, providing reliable data without complicating the operation of the compaction machine itself.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12601155B2Compaction management system

Publication Date: 2026.04.14 KOBELCO CONSTR MASCH CO LTD

AI summary

Provided is a compaction management system capable of accurately managing the compaction state of a compaction target ground. The compaction management system includes a compaction-pressing-record production unit, a storage device, and a final-compaction-pressing-record selection unit. The compaction pressing record production unit produces a plurality of compaction pressing records, each of which includes the pressing compaction position and the compaction pressing force which are associated with each other. The storage device stores the plurality of compaction pressing records. The final-compaction-pressing-record selection unit selects a selection target compaction pressing force record including the largest compaction pressing force among a plurality of selection target compaction pressing records, which are included in the plurality of compaction pressing records stored in the storage device and produced with respect to the same compaction pressing position, as the final compaction pressing force record with respect to the compaction pressing position.