Machine Control Synchronization Using Injected Sound and Vibration Cues

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Solution Overview

Problem

Existing techniques for synchronizing measurement data and operation data in machines depend on the feature of the predetermined operation, making it challenging to achieve accurate synchronization across different drive patterns, requiring careful user settings to avoid confusion with other operations.

Innovation Solution

A control device with a user command generation unit, synchronization command storage unit, synchronization command generation unit, and synchronization command output unit, which generates and outputs synchronization commands to an oscillation device to add a distinct effect to measurement data, allowing for stable synchronization of time-series data regardless of drive patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If feature-based synchronization is used to align measurement data and operation data, then synchronization can be achieved, but the accuracy depends on the feature of the predetermined operation and requires careful user settings for each drive pattern

Engineering Contradiction:
Improvesynchronization accuracyVSAvoiduser setting complexity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent introduces a synchronization signal as an intermediary element that is injected into the operation data. This synchronization signal serves as a common reference point that both the operation data and measurement data can be aligned to, eliminating the need for users to manually select and match features from each data type. The synchronization signal acts as a mediator that simplifies the synchronization process while maintaining high accuracy across different drive patterns.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If feature-based synchronization is used, then data alignment is possible, but the method lacks stability across different drive patterns of power source and machine

Engineering Contradiction:
Improvesynchronization stabilityVSAvoiddrive pattern coverage
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The synchronization signal is designed to be a universal reference that can be applied across multiple drive patterns and machine types. Instead of requiring different synchronization features for different operations, the same synchronization signal injection method works universally for various drive patterns, making the system both reliable and adaptable without requiring user customization for each pattern.

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

3Measurement precision

If synchronization requires careful feature selection for each drive pattern, then accuracy can be maintained, but the ease of use deteriorates

Engineering Contradiction:
Improvesynchronization accuracyVSAvoidease of use
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The system performs synchronization automatically by injecting and detecting the synchronization signal without requiring user intervention for feature selection or parameter tuning. The control device autonomously handles the entire synchronization process, maintaining high accuracy while significantly improving ease of use by eliminating complex manual configuration requirements.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20230418265A1Control device, synchronization system, and machine control method
Publication Date: 2023.12.28 MITSUBISHI ELECTRIC CORP
  • US20230418265A1 patent drawing
  • US20230418265A1 patent drawing
  • US20230418265A1 patent drawing

AI summary

A control device is connected to a synchronization device synchronizing operation data obtained by acquiring information about driving of a machine in time series and measurement data obtained by acquiring information about sound or vibration of the machine in time series by using features of data acquired in time series, and includes a user command generation unit generating a user command to drive the machine according to an instruction from a user of the control device, a synchronization command storage unit storing reproduction information capable of reproducing a synchronization command used for the synchronization at predetermined timing, a synchronization command generation unit generating the synchronization command based on the reproduction information, and a synchronization command output unit outputting, at predetermined timing of the user command, the synchronization command to an oscillation device that generates sound or vibration, and adding effect of the synchronization command to the measurement data.