Seiko epson corporation (20240210276). Signal Processing Method, Signal Processing Device, And Signal Processing Program simplified abstract
Contents
Signal Processing Method, Signal Processing Device, And Signal Processing Program
Organization Name
Inventor(s)
Masayoshi Todorokihara of Suwa (JP)
Signal Processing Method, Signal Processing Device, And Signal Processing Program - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240210276 titled 'Signal Processing Method, Signal Processing Device, And Signal Processing Program
The patent application describes a signal processing method that involves acquiring time waveforms from sensors related to physical quantities generated by external forces, velocities, or displacements with periodic variations.
- Time waveform acquisition step: Acquiring time waveforms from sensors related to physical quantities generated by external forces, velocities, or displacements.
- Frequency spectrum generation step: Generating frequency spectra based on the acquired time waveforms.
- First state index calculation step: Calculating the phase difference between signal components in different frequency spectra to indicate the state of the object.
Potential Applications: - Structural health monitoring - Vibration analysis in machinery - Seismic activity detection
Problems Solved: - Accurate measurement of physical quantities - Identification of object states based on frequency spectra
Benefits: - Improved understanding of object behavior - Enhanced predictive maintenance capabilities
Commercial Applications: Title: Advanced Structural Health Monitoring System Description: This technology can be used in industries such as aerospace, automotive, and civil engineering for real-time monitoring and analysis of structural integrity.
Questions about the technology: 1. How does this method improve upon existing signal processing techniques? 2. What are the key factors that influence the accuracy of state index calculations in this method?
Frequently Updated Research: Researchers are continuously exploring new applications of this signal processing method in various industries to enhance predictive maintenance strategies and improve operational efficiency.
Original Abstract Submitted
a signal processing method includes a time waveform acquisition step of acquiring, from an i-th sensor, an i-th time waveform related to an i-th physical quantity generated by an external force, a velocity, or a displacement having at least a periodic variation acting on an object for each integer i of 1 or more and n or less with n being a predetermined integer of 1 or more, a frequency spectrum generation step of generating an i-th frequency spectrum for each integer i based on the i-th time waveform, and a first state index calculation step of calculating, for each integer i, a difference between a phase of a first signal component corresponding to a first peak included in a first frequency spectrum and a phase of a second signal component that corresponds to a second peak included in the i-th frequency spectrum and has a frequency that is a rational multiple of a frequency of the first signal component as an index indicating a state of the object.
