Rebar Binding Robot Sensor Layout for Accurate Intersection Detection

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Solution Overview

Problem

Existing reinforcing bar binding robots face inefficiencies due to sensor detection errors caused by the movement of the binding machine, hindering productivity improvements.

Innovation Solution

A reinforcing bar binding robot equipped with multiple sensors positioned apart from each other to detect reinforcing bars in different directions, along with a movement amount calculation unit to accurately determine the intersecting points for binding, ensuring precise and efficient binding operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a single sensor is provided close to the binding machine to detect reinforcing bars, then the binding position can be determined, but sensor detection errors occur due to the movement of the binding machine during binding work

Engineering Contradiction:
Improvedetection accuracyVSAvoiddetection reliability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The patent divides the detection function into multiple sensors (first sensor, second sensor, third sensor, fourth sensor) positioned at different locations. Each sensor detects reinforcing bars from different perspectives, and their results are combined to determine binding positions, eliminating the reliance on a single sensor that would be affected by machine movement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent positions sensors in multiple spatial dimensions (apart from each other along different directions) rather than concentrating them in one location. This multi-dimensional arrangement allows the system to detect reinforcing bars from various angles and positions, compensating for the binding machine's movement during operation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If multiple sensors are positioned apart from each other to eliminate detection errors, then detection reliability improves, but device complexity increases

Engineering Contradiction:
Improvedetection reliabilityVSAvoidsensor arrangement complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The multiple sensors serve universal detection functions - each sensor can detect both first reinforcing bars (extending in the first direction) and second reinforcing bars (extending in the second direction). This multi-functionality reduces the need for specialized sensors for different purposes, simplifying the overall system design despite using multiple sensors.

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

Solution Approach 2:

The control device processes detection results from all sensors and uses this feedback information to accurately determine binding positions. The system continuously monitors reinforcing bar positions through multiple sensors and adjusts binding operations accordingly, creating a closed-loop control system that manages complexity through intelligent processing.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP4621162A1Reinforcing bar binding robot
Publication Date: 2025.09.24 MAX CO LTD
  • EP4621162A1 patent drawingFigure 1
  • EP4621162A1 patent drawingFigure 2
  • EP4621162A1 patent drawingFigure 3

AI summary

A reinforcing bar binding robot according to the present disclosure comprises: a reinforcing bar binding unit configured to bind intersecting parts of first reinforcing bars and second reinforcing bars of a reinforcing bar group including a plurality of the first reinforcing bars, which have an extension direction in a first direction, and a plurality of the second reinforcing bars, which have an extension direction in a second direction intersecting the first direction and which are disposed so as to intersect the first reinforcing bars; a travel unit configured to be capable of traveling along the first reinforcing bars and/or the second reinforcing bars; a first sensor and a second sensor which are configured to be capable of detecting at least one first reinforcing bar and/or at least one second reinforcing bar, and which are disposed spaced apart from one another in a third direction; and a third sensor and a fourth sensor which are configured to be capable of detecting at least one first reinforcing bar and/or at least one second reinforcing bar, and which are disposed spaced apart from one another in a fourth direction intersecting the third direction.