Excavator Space Recognition Control for Safe Automatic Operation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing shovel technologies lack effective safety measures for recognizing and adapting to surrounding spaces during work operations, leading to potential hazards and increased operator burden.

Innovation Solution

A shovel equipped with a space recognition device and arithmetic processing circuitry to set attributes to the surrounding space, enabling controlled operation based on these attributes, thereby improving safety and reducing operator burden.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the shovel performs work automatically without space recognition, then productivity is improved, but safety deteriorates due to unrecognized hazards in surrounding spaces

Engineering Contradiction:
Improveautomatic work performanceVSAvoidwork safety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The space recognition device performs preliminary detection of surrounding spaces and identifies hazardous areas before the shovel executes automatic work. The arithmetic processing circuitry processes this spatial information in advance to generate safe operation paths, ensuring that automatic work does not commence until the environment is validated as safe.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The space recognition device and arithmetic processing circuitry act as intermediaries between the automatic control system and the physical work environment. They translate physical space characteristics into processed spatial information that the control system can use to make safe automatic operation decisions.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the shovel operates without space recognition technology, then device complexity is reduced, but harmful factors increase due to undetected surrounding obstacles

Engineering Contradiction:
Improvesystem structureVSAvoidaccident risk
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

Solution Approach 1:

The space recognition device integrates multiple detection functions (distance measurement, spatial mapping, obstacle identification) into a single system. The arithmetic processing circuitry performs multiple processing tasks (data processing, attribute setting, path generation) using the same hardware platform, achieving multi-functionality without proportionally increasing complexity.

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

3Ease of operation

If the shovel uses space recognition and automatic control, then operator burden is reduced, but ease of operation deteriorates due to complex control requirements

Engineering Contradiction:
Improveoperator burdenVSAvoidcontrol system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The shovel system performs self-service by automatically recognizing spaces, processing spatial information, and controlling its own operation without continuous operator intervention. The arithmetic processing circuitry autonomously generates operation paths and the control system executes them, allowing the operator to merely monitor rather than actively control each movement.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20250250766A1shovel
Publication Date: 2025.08.07 SUMITOMO CONSTRUCTION MACHINERY
  • US20250250766A1 patent drawing
  • US20250250766A1 patent drawing
  • US20250250766A1 patent drawing

AI summary

A shovel includes a lower traveling body, an upper swivel body mounted on the lower traveling body capable of freely swiveling and including a space recognition device, and arithmetic processing circuitry configured to set an attribute to a space surrounding the shovel based on an output from the space recognition device, and to control the shovel based on the attribute set to the space.