Information processing device, measurement system, robot system, and computer program

The three-dimensional conversion and envelope comparison method isolates the robot's operating sound from ambient noise, improving the accuracy of sound detection and analysis in robot systems.

JP7746063B2Active Publication Date: 2025-09-30KAWASAKI JUKOGYO KK
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Patent Information

Application Number
JP2021127560
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-08-03
Publication Date
2025-09-30
Estimated Expiration
2041-08-03

AI Technical Summary

Technical Problem

Existing systems face challenges in accurately detecting the operating sound of a robot arm due to interference from other sound sources, as sound data collected by sound detectors often includes noise from surrounding environments.

Method used

A three-dimensional conversion process is applied to convert two-dimensional sound data into three-dimensional sound data, followed by extraction and detection of operation sound data within specific frequency bands, using techniques like continuous wavelet transform and envelope comparison to isolate and remove noise from the robot's operating sound.

Benefits of technology

Effectively separates the robot's operating sound from ambient noise, enabling precise detection and analysis of its operation sounds, enhancing the accuracy of monitoring and control systems.

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Abstract

To provide an information processor and the like which detect data of operation sound of a robot from sound data.SOLUTION: A processor of an information processor performs: three-dimensional conversion processing which converts two-dimensional sound data that includes operation sound of a robot performing two or more times of prescribed operations and represents a sound signal by intensity and generation time and generates converted data being three-dimensional sound data representing the sound signal by frequency, intensity, and generation time; extraction processing which extracts from the converted data two or more pieces of section data including data of a time section where the prescribed operations are executed; and detection processing detecting the operation sound data showing operation sound of the robot included in an object frequency band on the basis of a result of comparison of data included in the object frequency band being the same frequency band among the pieces of section data.SELECTED DRAWING: Figure 1
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