Collaborative Robot Sensor Configuration for Interference-Free Detection

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Solution Overview

Problem

Interference among non-contact sensors on collaborative robots can cause false detections, which are not effectively addressed by existing technologies.

Innovation Solution

A robot control apparatus with a sensor position detector, interference detector, and sensor configurator to identify and eliminate interference between non-contact sensors by adjusting their positions, detection ranges, or detection directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple non-contact sensors are installed on the robot to enhance detection capability, then the detectable space and sensing coverage are increased, but the sensors may interfere with each other causing false detections

Engineering Contradiction:
Improvedetection capabilityVSAvoiddetection accuracy
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The interference detector performs preliminary detection to identify potential interference between sensors before false detections occur. By calculating detection ranges and determining spatial relationships in advance, the system can proactively manage sensor interference and maintain detection accuracy while using multiple sensors.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The sensor configurator uses feedback from the interference detector to dynamically adjust sensor configurations. When interference is detected, the system automatically modifies detection ranges or disables specific sensors, creating a closed-loop control system that maintains reliable operation while maximizing the use of multiple sensors.

Inventive Principle:
Principle #23Feedback

2Area of stationary object

If more non-contact sensors are installed on the robot to expand detection coverage, then the detectable space increases, but the device complexity increases

Engineering Contradiction:
Improvedetectable spaceVSAvoidsensor management complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The system merges the management of multiple sensors into a unified control architecture. The interference detector and sensor configurator consolidate sensor status monitoring, interference detection, and configuration management into integrated functions, reducing operational complexity despite having multiple sensors installed.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sensor management system operates autonomously through self-service mechanisms. The interference detector automatically identifies interference conditions, and the sensor configurator automatically adjusts sensor configurations without requiring manual intervention, thereby managing complexity internally while maintaining simple external operation.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If the detection range of sensors is increased to enhance detection capability, then the detectable space expands, but the likelihood of sensor interference increases

Engineering Contradiction:
Improvedetection capabilityVSAvoidsensor interference
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary interference detection by calculating detection ranges and spatial relationships before actual detection operations. This allows the system to identify potential interference zones in advance and adjust sensor configurations proactively, enabling sensors to operate at full detection range while preventing harmful interference through advance planning.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The sensor configurator dynamically adjusts detection ranges based on real-time spatial relationships between sensors. When sensors move into positions where their detection ranges may overlap and cause interference, the system automatically modifies detection parameters, allowing maximum detection capability while adaptively managing interference conditions.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20260084295A1Robot control apparatus
Publication Date: 2026.03.26 NACHI FUJIKOSHI CORP
  • US20260084295A1 patent drawing
  • US20260084295A1 patent drawing
  • US20260084295A1 patent drawing

AI summary

A robot control apparatus of a robot equipped with a plurality of non-contact sensors, includes a sensor position detector that determines a position of each of the non-contact sensors and an interference detector that examines the determined positions of the non-contact sensor to determines two of the non-contact sensors, a target sensor and a counterpart sensor, cause interference to each other in response to a determination that the counterpart sensor is situated in a present detection range of the target sensor.