WO2020236115A1 - A method for estimation of malfunction using sound - Google Patents

A method for estimation of malfunction using sound Download PDF

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Publication number
WO2020236115A1
WO2020236115A1 PCT/TR2020/050425 TR2020050425W WO2020236115A1 WO 2020236115 A1 WO2020236115 A1 WO 2020236115A1 TR 2020050425 W TR2020050425 W TR 2020050425W WO 2020236115 A1 WO2020236115 A1 WO 2020236115A1
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WO
WIPO (PCT)
Prior art keywords
data
malfunction
sounds
estimation
fault
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/TR2020/050425
Other languages
French (fr)
Inventor
Salih SERTBAS
Yunus Emre KURT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Borusan Makina ve Guc Sistemleri Sanayi ve Ticaret AS
Original Assignee
Borusan Makina ve Guc Sistemleri Sanayi ve Ticaret AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Borusan Makina ve Guc Sistemleri Sanayi ve Ticaret AS filed Critical Borusan Makina ve Guc Sistemleri Sanayi ve Ticaret AS
Priority to US17/606,586 priority Critical patent/US12442720B2/en
Priority to EP20808960.7A priority patent/EP3969860A4/en
Publication of WO2020236115A1 publication Critical patent/WO2020236115A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0237—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on parallel systems, e.g. comparing signals produced at the same time by same type systems and detect faulty ones by noticing differences among their responses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/028—Acoustic or vibration analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37337—Noise, acoustic emission, sound
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37351—Detect vibration, ultrasound

Definitions

  • the invention relates to a method that allows analysis of machine sounds and estimation of malfunction.
  • the invention relates to a method that allows the machine operators or customers to receive the sounds of the machines online or offline through a mobile application on their mobile devices, to analyze the mentioned sounds with artificial intelligence algorithms and to report the fault information to the operator or the customer through the mobile application.
  • the document US6772633 mentions a method for facilitating diagnosis of the operation of devices or machines based on acoustics. In this regard; it is ensured that obtaining a sound while a device is operating, processing the sound, acquiring one or more acoustics-based fault-signatures associated with the device, the fault-signatures being stored in a database, analyzing the processed sound based upon the one or more acquired fault-signatures and based upon such analysis, determining whether the device has a fault condition evidenced by the sound that it emitted.
  • the document CN102809493A mentions a method an abnormal sound diagnosis device.
  • a device has been developed to identify abnormal sounds in machines. Fault noise can be detected by time- frequency analysis of machine sound vibrations coming from a data acquisition unit.
  • Fault noise can be detected by time- frequency analysis of machine sound vibrations coming from a data acquisition unit.
  • there is no solution to meet the need for technicians and spare parts according to the nature of the fault by analyzing the sounds of the machine by means of the application running online or offline only in a mobile device.
  • a system comprises one or more sensors and a processor.
  • the sensors measure sound and vibrations from the vehicle.
  • the processor identifies the vehicle system or device based on the measured sound and vibration. Therefore, there is no solution for receiving the sounds of the machines online or offline through a mobile application on the mobile devices of operators or customers, and analyzing the said sounds with artificial intelligence algorithms and reporting the fault information to the operator or customer through the mobile application. In addition, no estimating of malfunction is mentioned.
  • the aim of the present invention is to provide a solution to meet the need for technicians and spare parts according to the nature of the fault, by analyzing the machine noises and performing estimation of malfunction.
  • Another aim of the invention is to provide a solution for playing the sounds of the machines online or offline through a mobile application on the mobile devices and analyzing the said sounds with the fault classification algorithms and reporting the fault information to the relevant people through the mobile application or an internet platform.
  • Another aim of the invention is assignment of qualified personnel to repair operations by means of fast and practical detection of defective parts of machines on an online or offline platform.
  • One another aim of the invention is to prevent the prolonged estimating of malfunction process due to missing equipment and spare parts incompatibility by means of fast and practical detection of defective parts of machines on an online or offline platform.
  • the other aim of the invention to provide a method that enables the reduction of logistics and personnel expenses by means of the determination of the personnel and spare parts requirements according to the nature of the fault by means of the estimating of malfunction realized online or offline.
  • the present invention is a malfunction estimation system by analyzing machine sounds, and it comprises at least one mobile device which comprises a mobile application that allows the identification of malfunction sounds and sending them to the audio database, at least one data processing device which includes an internet platform that allows sharing of fault information with the relevant units,
  • the invention is a method that enables the analysis of machine noises to detect faults and comprises the following process steps: recording the sound of the machine, which is considered to be a malfunction, for a certain period of time via online or offline application on the mobile device and sending it to sound database,
  • At the method of the invention also comprises continuous improvement of the failure estimation results performed by using the sound data converted into numerical values, by the mentioned server exchanging data together with the audio database via the data warehouse and instant data exchange.
  • the invention relates to a method that allows the need for personnel and spare parts to be met according to the nature of the fault by means of noise analysis by machine noise analysis.
  • Machine sounds are recorded online or offline via a mobile application and a platform that works on data processing devices (50), such as machine operators, technicians or customers' mobile devices (10). Mentioned online sounds and audio data from an audio database (30) are analyzed on the server (40) with artificial intelligence algorithms and the fault information is reported to the mobile devices (10) or data processing device (50) of the mentioned personnel or customers through the mobile application or internet platform.
  • data processing devices such as machine operators, technicians or customers' mobile devices (10). Mentioned online sounds and audio data from an audio database (30) are analyzed on the server (40) with artificial intelligence algorithms and the fault information is reported to the mobile devices (10) or data processing device (50) of the mentioned personnel or customers through the mobile application or internet platform.
  • Offline sounds can be evaluated by the algorithm written on the mobile application for mobile devices (10).
  • An offline estimation component (43) for the mobile device is used while estimation of malfunction.
  • the audio data received in the offline estimation component (43) are processed instantly.
  • the mentioned offline estimation component (43) does not have a self-learning ability.
  • the offline estimation component (43) is updated periodically in the form of a week or a month by using the data generated at the learning component (41). It is ensured that the defective part is detected instantly with only one mobile device (10) without the need for additional equipment by means of mentioned method. In this regard, a fast and practical method is presented.
  • the mentioned system mainly has a mobile device (10) containing a mobile application that enables the identification of malfunction sounds and sending them to the audio database and a data processing device (50) that includes an internet platform, an ERP system (20) that keeps various data, a data warehouse (21) that allows data exchange between different environments, an audio database (30) that stores data associated with fault sounds, a server (40) that enables the analysis of noise related to fault sounds, learning component (41) and estimation component (42) associated with the said server (40), an offline estimation component (43) associated with the mobile device (10) that allows offline failure estimation.
  • the sound of the machine which is considered to be a malfunction, is recorded for a certain period of time via an online or offline application on the mobile device (10) and sent to the audio database (30).
  • the audio data recorded in the audio database (30) is sent to the server (40) via a data warehouse (21).
  • the server (40) constantly interacts with the audio database (30) and exchanges data via the data warehouse (21).
  • the data accumulated in the audio database (30) is continuously improved with the diagnostic analysis that processes in the server (40). Data is processed daily within the learning component (41) of the server (40), and data is processed instantly within the estimation component (42). Otherwise, by means of a data flow from the learning component (41) to the estimation component (42) at certain times, continuous improvement is made in the estimating of malfunction system.
  • noise analysis of the audio data obtained from the audio database (30) is provided.
  • Artificial neural network algorithms are used in the analysis processes performed on the server (40).
  • Variant subtraction techniques are used in noise analysis.
  • sound data are taken and numerical values are converted into numerical values.
  • sound filtering methods it is ensured that machine sounds are purified from external sounds.
  • the present invention unlike all other methods, enables the detection of the defective part quickly without the need for additional equipment when a problem occurs with the machines.
  • Practical estimating of malfunction via a mobile device (10) only installed on the application provides time and economic gain.
  • the time spent by the works is pending is minimized by reducing the planning errors.
  • the determination of the fault depending on the nature of the fault, the need for technical personnel and spare parts is determined, and logistics and personnel expenses are reduced.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Automation & Control Theory (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Debugging And Monitoring (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Artificial Intelligence (AREA)
  • Computational Linguistics (AREA)
  • Data Mining & Analysis (AREA)
  • Evolutionary Computation (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Software Systems (AREA)

Abstract

The present invention, relates to a malfunction estimation method that allows personnel and spare parts to be provided according to the nature of the fault by means of the estimation of malfunction using machine noise analysis. The sounds of the machines are recorded online or offline via a mobile application (10) on the mobile devices of operators or customers. Mentioned sounds and sounds from an audio database (30) are analyzed by fault classification algorithms and the fault information is reported to the operator or customer online or offline via mobile application or an internet platform. By the means of mentioned method, instantly it is ensured that the malfunctioned part is detected with only one mobile device (10) without the need for additional equipment.

Description

A METHOD FOR ESTIMATION OF MALFUNCTION USING SOUND Technical Field
The invention relates to a method that allows analysis of machine sounds and estimation of malfunction.
More specifically, the invention relates to a method that allows the machine operators or customers to receive the sounds of the machines online or offline through a mobile application on their mobile devices, to analyze the mentioned sounds with artificial intelligence algorithms and to report the fault information to the operator or the customer through the mobile application.
Prior Art
With the development of technology, machines are developing day by day and their usage areas are increasing. The machines, which are located in many areas, are taken to the service periodically and thus, the necessary maintenance and controls are performed and the malfunctions are eliminated. The maintenance performed extends the lifetime of the machines as well as eliminating malfunctions and functioning properly.
Ensuring that the machines functioning properly is very important in terms of labor, time and cost. Particularly, when malfunction occurs in the heavy equipment, the repair processes prevent the operation of the machinery, causing the work to be impossible and the work plan to be troubled. In this regard, the rapid detection of faults occurring in the heavy equipment and learning from which component the problem is caused will lead to shorter repair time by directing qualified personnel and spare parts to the faulty machine.
Recently, vibration and frequency analysis of the sound has been used in order to determine which part of the machine the fault is in. The operating sounds of the machines give information about their current status. In the current methods, it can often be determined whether there is a problem by regularly checking the vibration values of the machine sounds with measuring devices. However, current solutions do not allow instantaneous learning of the defective part through an online or offline platform when a problem occurs with the machines. Due to insufficient data related to the malfunction, technicians cannot be assigned to the works to provide optimal efficiency and the estimating of malfunction process is prolonged due to misdiagnosis, missing equipment, spare parts. This situation made it necessary to develop a method to meet the need of technicians and spare parts according to the nature of the fault by analyzing the sounds of the machine and making the fault determination.
The document US6772633 mentions a method for facilitating diagnosis of the operation of devices or machines based on acoustics. In this regard; it is ensured that obtaining a sound while a device is operating, processing the sound, acquiring one or more acoustics-based fault-signatures associated with the device, the fault-signatures being stored in a database, analyzing the processed sound based upon the one or more acquired fault-signatures and based upon such analysis, determining whether the device has a fault condition evidenced by the sound that it emitted. Therefore, there is no solution for receiving the sounds of the machines online or offline through a mobile application on the mobile devices of operators or customers, and analyzing the said sounds with artificial intelligence algorithms and reporting the fault information to the operator or customer through the mobile application. There is also no method for the direct detection of the defective part.
The document CN102809493A mentions a method an abnormal sound diagnosis device. A device has been developed to identify abnormal sounds in machines. Fault noise can be detected by time- frequency analysis of machine sound vibrations coming from a data acquisition unit. However, there is no solution to meet the need for technicians and spare parts according to the nature of the fault by analyzing the sounds of the machine by means of the application running online or offline only in a mobile device.
The document US982451 1 mentions methods and systems for diagnosing vehicle systems using vehicle sounds, vibrations, or both. A system comprises one or more sensors and a processor. The sensors measure sound and vibrations from the vehicle. The processor identifies the vehicle system or device based on the measured sound and vibration. Therefore, there is no solution for receiving the sounds of the machines online or offline through a mobile application on the mobile devices of operators or customers, and analyzing the said sounds with artificial intelligence algorithms and reporting the fault information to the operator or customer through the mobile application. In addition, no estimating of malfunction is mentioned.
Consequently, the need to listen to the sounds of the machines online or offline through a mobile application on the mobile devices of operators or customers, and to analyze the said sounds using the fault classification algorithms, and to inform the operator or customer through the mobile application required the emergence of the solution according to the present invention. Objectives and Short Description of the Invention
The aim of the present invention is to provide a solution to meet the need for technicians and spare parts according to the nature of the fault, by analyzing the machine noises and performing estimation of malfunction.
Another aim of the invention is to provide a solution for playing the sounds of the machines online or offline through a mobile application on the mobile devices and analyzing the said sounds with the fault classification algorithms and reporting the fault information to the relevant people through the mobile application or an internet platform.
Another aim of the invention is assignment of qualified personnel to repair operations by means of fast and practical detection of defective parts of machines on an online or offline platform.
One another aim of the invention is to prevent the prolonged estimating of malfunction process due to missing equipment and spare parts incompatibility by means of fast and practical detection of defective parts of machines on an online or offline platform.
The other aim of the invention to provide a method that enables the reduction of logistics and personnel expenses by means of the determination of the personnel and spare parts requirements according to the nature of the fault by means of the estimating of malfunction realized online or offline.
In order to achieve the above aims, the present invention is a malfunction estimation system by analyzing machine sounds, and it comprises at least one mobile device which comprises a mobile application that allows the identification of malfunction sounds and sending them to the audio database, at least one data processing device which includes an internet platform that allows sharing of fault information with the relevant units,
an ERP system that allows the storage and processing of various data,
a data warehouse that allows data exchange between different environments, an audio database that stores data about fault sounds,
a server that allows noise analysis of fault sounds,
a learning component and estimation component for mentioned server,
an offline estimation component for a mobile device that allows offline malfunction estimation. The invention is a method that enables the analysis of machine noises to detect faults and comprises the following process steps: recording the sound of the machine, which is considered to be a malfunction, for a certain period of time via online or offline application on the mobile device and sending it to sound database,
sending the audio data recorded in the sound database to the server via a data warehouse, to determine the component of the malfunction by performing noise analysis of the data from the audio database on the server,
following the determination of which component the fault is in, recording the fault detection information from the server via the data warehouse by sending it to the ERP system via the data warehouse,
sending the diagnostic information recorded in the ERP system to the mobile device and data processing device of the relevant person through the data warehouse
At the method of the invention also comprises continuous improvement of the failure estimation results performed by using the sound data converted into numerical values, by the mentioned server exchanging data together with the audio database via the data warehouse and instant data exchange.
Description of the Figures
In Figure 1 , system components of the method subject to the invention and interaction between them are shown.
Reference Numbers
10. Mobile Device
20. ERP System
21. Data warehouse
30. Audio Database
40. Server
41. Learning Component
42. Estimation Component
43. Offline Estimation Component
50. Data processing device Detailed Description of the Invention
The invention relates to a method that allows the need for personnel and spare parts to be met according to the nature of the fault by means of noise analysis by machine noise analysis.
Machine sounds are recorded online or offline via a mobile application and a platform that works on data processing devices (50), such as machine operators, technicians or customers' mobile devices (10). Mentioned online sounds and audio data from an audio database (30) are analyzed on the server (40) with artificial intelligence algorithms and the fault information is reported to the mobile devices (10) or data processing device (50) of the mentioned personnel or customers through the mobile application or internet platform.
Offline sounds can be evaluated by the algorithm written on the mobile application for mobile devices (10). An offline estimation component (43) for the mobile device is used while estimation of malfunction. The audio data received in the offline estimation component (43) are processed instantly. The mentioned offline estimation component (43) does not have a self-learning ability. The offline estimation component (43) is updated periodically in the form of a week or a month by using the data generated at the learning component (41). It is ensured that the defective part is detected instantly with only one mobile device (10) without the need for additional equipment by means of mentioned method. In this regard, a fast and practical method is presented.
System components in which the present innovative method is applied and interaction between them are shown in Figure 1. The mentioned system mainly has a mobile device (10) containing a mobile application that enables the identification of malfunction sounds and sending them to the audio database and a data processing device (50) that includes an internet platform, an ERP system (20) that keeps various data, a data warehouse (21) that allows data exchange between different environments, an audio database (30) that stores data associated with fault sounds, a server (40) that enables the analysis of noise related to fault sounds, learning component (41) and estimation component (42) associated with the said server (40), an offline estimation component (43) associated with the mobile device (10) that allows offline failure estimation.
In the present invention, the sound of the machine, which is considered to be a malfunction, is recorded for a certain period of time via an online or offline application on the mobile device (10) and sent to the audio database (30). The audio data recorded in the audio database (30) is sent to the server (40) via a data warehouse (21). The server (40) constantly interacts with the audio database (30) and exchanges data via the data warehouse (21). The data accumulated in the audio database (30) is continuously improved with the diagnostic analysis that processes in the server (40). Data is processed daily within the learning component (41) of the server (40), and data is processed instantly within the estimation component (42). Otherwise, by means of a data flow from the learning component (41) to the estimation component (42) at certain times, continuous improvement is made in the estimating of malfunction system. Hereby, noise analysis of the audio data obtained from the audio database (30) is provided. Artificial neural network algorithms are used in the analysis processes performed on the server (40). Variant subtraction techniques are used in noise analysis. By using methods such as Spectrum, Audio Spectrum, Audio Spectrum Envelope and MFCC, sound data are taken and numerical values are converted into numerical values. By means of sound filtering methods, it is ensured that machine sounds are purified from external sounds. After determining which component the fault is in, the fault detection information received from the server (40) via data warehouse (21) is sent to the ERP system (20) and recorded. The diagnostic information recorded in the ERP system (20) is sent to the mobile device (10) of the customer or technical personnel via the data warehouse (21) and to the data processing device (50) in which an internet platform is running. Thus, users can quickly and practically learn what component the malfunction is in.
The present invention, unlike all other methods, enables the detection of the defective part quickly without the need for additional equipment when a problem occurs with the machines. Practical estimating of malfunction via a mobile device (10) only installed on the application provides time and economic gain. When the right personnel are sent to the right job, the time spent by the works is pending is minimized by reducing the planning errors. With the determination of the fault, depending on the nature of the fault, the need for technical personnel and spare parts is determined, and logistics and personnel expenses are reduced.

Claims

1. A malfunction estimation system by analyzing machine sounds characterized in that it comprises
at least one mobile device (10) which comprises a mobile application that allows the identification of malfunction sounds and sending them to the audio database (30), at least one data processing device (50) which includes an internet platform that allows sharing of fault information with the relevant units,
an ERP system (20) that allows the storage and processing of various data,
a data warehouse (21) that allows data exchange between different environments, an audio database (30) that stores data about fault sounds,
a server (40) that allows noise analysis of fault sounds,
a learning component (41) and estimation component (42) for mentioned server (40), an offline estimation component (43) for a mobile device that allows offline malfunction estimation.
2. A method of malfunction estimation by analyzing machine sounds characterized in that it comprises
recording the sound of the machine, which is considered to be a malfunction, for a certain period of time via the online or offline application on the mobile device (10) and sending it to the audio database (30),
sending audio data recorded in the audio database (30) to the server (40) via a data warehouse (21),
determine which component the malfunction is by performing noise analysis of the data from the audio database (30) on the server (40),
recording the fault detection information coming from the server (40) through the data warehouse (21) by sending it to the ERP system (20) through the data warehouse (21), sending the diagnostic information recorded in the ERP system (20) to the mobile device (10) and data processing device (50) of the relevant person through the data warehouse (21).
3. A method of malfunction estimation by analyzing machine sounds according to claim 2 characterized in that it comprises continuous improvement of the failure estimation results performed by using the sound data converted into numerical values, by the mentioned server (40) exchanging data together with the audio database (30) via the data warehouse (21) and instant data exchange.
PCT/TR2020/050425 2019-05-17 2020-05-16 A method for estimation of malfunction using sound Ceased WO2020236115A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17/606,586 US12442720B2 (en) 2019-05-17 2020-05-16 Method for estimation of malfunction using sound
EP20808960.7A EP3969860A4 (en) 2019-05-17 2020-05-16 METHOD FOR ASSESSING MALFUNCTION USING SOUND

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2019/07462A TR201907462A2 (en) 2019-05-17 2019-05-17 A METHOD FOR TROUBLESHOOTING WITH AUDIO
TR2019/07462 2019-05-17

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CN113404540A (en) * 2021-06-11 2021-09-17 安徽中科昊音智能科技有限公司 Voiceprint comprehensive monitoring system applied to coal mine scene
WO2025063864A1 (en) * 2023-09-21 2025-03-27 Константин Евсеевич БЕЛОЦЕРКОВСКИЙ Method for acoustically monitoring a crusher

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US20170076514A1 (en) * 2015-09-11 2017-03-16 GM Global Technology Operations LLC Vehicle diagnosis based on vehicle sounds and vibrations
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Title
See also references of EP3969860A4

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US12442720B2 (en) 2025-10-14
TR201907462A2 (en) 2020-12-21
EP3969860A1 (en) 2022-03-23
US20220228949A1 (en) 2022-07-21
EP3969860A4 (en) 2023-06-07

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