Excavator Control System for Deposition State Optimization

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current control systems for construction machines do not effectively enhance work efficiency during excavation tasks by making objects easily excavatable, as they primarily focus on moving machines along designed landforms rather than optimizing the object's deposition state for easier excavation.

Innovation Solution

A control apparatus and method that acquires information on the deposition state of an object, specifies a destination within an excavation target region based on this state, and instructs an excavator to move the object to that destination, thereby smoothing the surface and improving excavatability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the work machine moves along a virtually designed landform, then the machine can follow the planned excavation path, but the object remains difficult to excavate due to uneven deposition state

Engineering Contradiction:
Improvelandform following accuracyVSAvoidexcavation work efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The control device performs preliminary action by automatically moving the work machine to transport the object to a predetermined position before excavation occurs. This advance positioning of material creates optimal deposition conditions, making the object easier to excavate while the machine subsequently follows the designed landform accurately.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback by detecting the actual deposition state of the object and comparing it with the target state. Based on this detection information, the control device adjusts the work machine's operations to achieve both proper material positioning for easy excavation and accurate landform following.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If manual excavation methods are used, then the operator can adapt to varying deposition conditions, but work efficiency decreases due to manual labor requirements

Engineering Contradiction:
Improveadaptation to deposition stateVSAvoidwork efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The system implements self-service by enabling the work machine to autonomously detect the deposition state, determine appropriate transport operations, and execute material positioning without continuous manual intervention. The machine serves itself by automatically adapting to varying deposition conditions while maintaining high work efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The control device replaces manual mechanical operations with automated control systems. The detection device and control unit substitute for human operator actions, automatically managing the work machine's movements and material transport operations to achieve both adaptability and efficiency.

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

3Device complexity

If the object is not repositioned according to deposition state, then the excavation process remains simple, but work efficiency is reduced due to difficult excavation conditions

Engineering Contradiction:
Improveexcavation process simplicityVSAvoidexcavation work efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The system performs preliminary material repositioning operations based on detected deposition states before excavation begins. By automatically transporting the object to optimal positions in advance, the system prepares favorable excavation conditions without adding significant complexity to the overall process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The control device changes operational parameters by adjusting the work machine's movements and material transport operations according to the detected deposition state. These parameter adjustments optimize excavation conditions dynamically while maintaining process simplicity through automated control.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20240141617A1Control device, control method, and control system
Publication Date: 2024.05.02 NEC CORP
  • US20240141617A1 patent drawing
  • US20240141617A1 patent drawing
  • US20240141617A1 patent drawing

AI summary

In order to specify and instruct to where to move an object in order to form the object in a shape that allows the object to be easily excavated, a control method includes: acquiring information pertaining to a deposition state of the object deposited; specifying a destination of the object in an excavation target region with reference to the acquired information pertaining to the deposition state; and instructing an excavator to move the object to the destination.