Soil Cultivation Tool Acoustic Soil Classification

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Solution Overview

Problem

Existing soil cultivation methods using construction equipment rely heavily on manual adjustments of rotational speed and feed rate, which require operator experience and can be inefficient when dealing with varying soil types and layers, leading to suboptimal performance and tool wear.

Innovation Solution

Incorporating a sound measuring device and control and evaluation unit that records and analyzes the sound generated during soil processing to determine soil type, adjusting operating parameters automatically based on stored data sets and self-learning logic to optimize drilling or milling operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual adjustment of rotational speed and feed rate is used, then operator experience can handle various soil types, but efficiency decreases and tool wear increases when dealing with varying soil layers

Engineering Contradiction:
Improveadaptability to different soil typesVSAvoiddrilling efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent replaces manual mechanical adjustment with an automated control system that uses acoustic sensors to detect soil type and automatically adjusts drilling parameters. The control system substitutes human operator decisions with automated acoustic-based soil classification and parameter optimization, resolving the contradiction between adaptability and productivity.

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

Solution Approach 2:

The patent implements a feedback loop where acoustic sensors continuously monitor soil characteristics during drilling, the control system analyzes this feedback to identify soil type changes, and automatically adjusts drilling parameters in real-time. This continuous feedback mechanism enables both high adaptability to varying soil conditions and maintained productivity through automated responses.

Inventive Principle:
Principle #23Feedback

2Manufacturing precision

If pre-selected programs are used based on soil type, then rotational speed and feed rate can be optimized, but operator still needs experience to select correct program and efficiency drops when encountering unexpected soil layers

Engineering Contradiction:
Improveprecision of parameter settingVSAvoidcomplexity of control system operation
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent enables the drilling system to automatically determine soil type using acoustic sensors and self-adjust parameters without requiring operator intervention for program selection. The control system performs self-service by autonomously classifying soil conditions and optimizing drilling parameters, eliminating the need for operator experience in program selection while maintaining precision.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent dynamically changes drilling parameters (rotational speed, feed rate) based on real-time acoustic analysis of soil conditions. The control system monitors acoustic signals and automatically adjusts parameters to match optimal values for the detected soil type, achieving precise parameter setting without complex manual program selection.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If higher rotational speed and feed rate are used, then productivity increases, but tool wear increases and performance degrades in hard or cohesive soils

Engineering Contradiction:
Improvedrilling speedVSAvoidtool durability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements dynamic adjustment of drilling parameters based on real-time soil condition detection. The control system continuously monitors acoustic signals and adaptively changes rotational speed and feed rate to match current soil hardness and cohesiveness, enabling high productivity in soft soils while automatically reducing parameters to protect tool durability in hard or cohesive soils.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes drilling parameters (rotational speed, feed rate) in real-time based on detected soil characteristics. The control system optimizes parameters for maximum productivity in each soil type while automatically reducing parameters when hard or cohesive soils are detected, thereby protecting tool durability without sacrificing overall drilling efficiency.

Inventive Principle:
Principle #35Parameter changes

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 approach enables reliable and efficient soil cultivation by automatically adjusting parameters for different soil types, reducing operator dependency and improving drilling or milling efficiency while minimizing tool wear and noise.

Implementation Method 1

at least one sound measuring device is provided with which sound is detected during soil processing and transmitted as a sound measurement value

Methodology Applied
Scientific EffectSound detection: Sound

Implementation Method 2

during soil cultivation with a rotary drive unit, a substantially continuous vibration is generated in the soil

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentEP3536900B1Method and device for soil excavation
Publication Date: 2023.06.07 BAUER MASCH GMBH

AI summary

The application relates to a method and a construction device for soil cultivation, which includes at least one rotary drive unit for rotating a soil cultivation tool that is inserted into the soil. According to the application, at least one sound measuring device is provided, with which sound is detected during soil cultivation and transmitted as a sound measurement value, and a control and evaluation unit is provided, which determines the type of soil to be cultivated based on the sound measurements.