JP2003130723A - Abnormality diagnostic system for machine installation containing vibration element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an abnormality diagnostic system for a machine installation containing one or a plurality of sliding members by which the construction cost of the system can be suppressed to be low, and by which the high speed of a diagnostic processing operation can be realized. SOLUTION: A measured-data analytical program 41 required for performing the diagnostic processing of the existence of an abnormality in the machine installation 27, decision reference data 43a and a decision program 45 are uploaded to a server 25 connected to a communication network 23, in such a way that they have a data form executable in an information processing terminal 29 for a user using the machine installation 27, and that they can be downloaded by the user to the terminal 29, the user downloads the diagnostic processing program and the data to the terminal 29 on the user side via the communication network 23, and the terminal 29 on the user side executes the diagnostic processing operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention analyzes measured vibration data, which records sound or vibration generated during operation of mechanical equipment including one or more sliding members, by using a measured data analysis program, and displays the analysis result. The present invention relates to a machine equipment abnormality diagnosis system that diagnoses the presence / absence of a machine equipment abnormality by a determination program collating with the determination reference data.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional example of an abnormality diagnosing system for diagnosing the presence or absence of abnormality in mechanical equipment including one or a plurality of sliding members such as rolling bearings. The abnormality diagnosis system 1 includes a diagnostic program 5 in an information processing device (computer) 3 managed by a manufacturer who designed mechanical equipment.
And the criterion data 7 necessary for diagnosis are incorporated,
When the user 9 who uses the mechanical equipment requests the manufacturer to diagnose whether or not there is any abnormality in the mechanical equipment, the manufacturer supplies the measured vibration data in which the sound or vibration generated when the mechanical equipment of the user 9 is operating is recorded to the information processing device. It is processed by the diagnostic program 5 of No. 3 to diagnose the presence or absence of abnormality, and the diagnostic result is returned to the user 9.

Judgment standard data 7 is set by calculating a frequency component of vibration generated at the time of abnormality of a specific part of the machine equipment and a standard peak level in the frequency component from specifications of the machine equipment. It is stored in the data storage unit 11 of the information processing device 3. In the data storage unit 11, usually, for example, in addition to the sound / vibration database 71 that stores the judgment reference data 7, a customer information database 81 that stores information about a user who is using the rotating body to be diagnosed, an abnormality. Various databases useful for diagnostic processing are constructed, such as a countermeasure method database 91 that stores information such as countermeasure methods that answer the user according to the state.

The diagnostic program 5 is, for example, an actual measurement data analysis program 12 for performing actual analysis processing such as frequency analysis and envelope analysis on actual measurement vibration data obtained from a user to generate actual measurement frequency spectrum data.
And a determination program 13 for diagnosing the presence or absence of abnormality by collating the analysis result of the actual measurement data analysis program 12 with the determination reference data 7. The determination program 13 uses, as the data stored in the determination reference data 7, the frequency component generated when an abnormality occurs in a specific part of the mechanical equipment as the determination reference, and the actual measurement frequency spectrum data which is the analysis result of the actual measurement data analysis program 12. The presence or absence of an abnormality in the mechanical equipment and the location of the abnormality are specified by whether or not a peak value above a certain level appears at the above judgment reference position.

[0005]

By the way, in the processing by the diagnostic program 5, the same processing must be repeatedly executed for each predetermined specific part of the mechanical equipment, so that the processing amount is large and the processing time is long. Takes. In addition, diagnosis requests from a plurality of users may be concentrated. Therefore, in order to digest the diagnostic processing of a plurality of users as quickly as possible, a high-performance computer having a high arithmetic processing capability is required as the information processing device 3, which causes a problem that the system construction cost becomes high. . Further, when the diagnosis requests from the users are overlapped with each other, there is a problem that it is difficult to make a quick reply even if a computer having a high arithmetic processing capability is adopted as the information processing device 3. Further, it is necessary to transmit the actually measured vibration data from the user to the maker, and the time required to transmit the actually measured vibration data from the user to the maker also causes a delay in the diagnostic processing.

The present invention has been made in view of the above problems, and an object thereof is to generate a machine equipment to be diagnosed when diagnosing the presence or absence of abnormality in the machine equipment including one or a plurality of sliding members. There is no need to send the measured vibration data recording the sound and vibration to the maker, and the diagnostic processing can be speeded up by omitting the time and labor required to send the measured vibration data to the maker. It is possible to avoid the concentration of the diagnostic processing of a large number of users in the information processing apparatus, and at the same time, to delegate the diagnostic processing to any available information processing apparatus on the user side. Since it is not necessary to consider that the user's diagnostic processing is concentrated, quick processing can be expected even with an information processing device that does not have a high calculation processing capacity, and thus the system construction cost can be kept low. The present invention is to provide an abnormality diagnosis system of mechanical equipment which can realize speed-up of the diagnostic process.

[0007]

In order to achieve the above-mentioned object, an abnormality diagnosis system for mechanical equipment according to the present invention, as set forth in claim 1, produces a sound or noise generated by mechanical equipment including a sliding member. An actual measurement data analysis program that analyzes actual measurement vibration data that records vibration, determination reference data that records information that serves as a determination reference for the presence or absence of abnormality of the mechanical equipment, and an analysis result of the actual measurement data analysis program that is the determination reference data. And a determination program for diagnosing the presence / absence of abnormality of the mechanical equipment in a data format that can be executed by the information processing terminal of the user who uses the mechanical equipment, and can be downloaded to the information processing terminal of the user. Is uploaded to a server connected to a communication network, and the user of the machine / equipment can download the measurement data analysis program, the determination program, and the determination program. The determination reference data, as well as downloaded on its information processing terminal via the communication network,
By taking the measured vibration data into its own information processing terminal via an appropriate interface and executing the measured data analysis program and the determination program on its own information processing terminal, it is possible to diagnose whether or not there is an abnormality in the mechanical equipment. It is characterized by carrying out.

In the abnormality diagnosis system for mechanical equipment including one or a plurality of sliding members, when diagnosing whether or not there is an abnormality in the mechanical equipment, the diagnostic processing by the diagnostic program is performed by the information processing installed on the user side. Since it is performed by the terminal, there is no need to send the actually measured vibration data recording the sound and vibration generated by the mechanical equipment to be diagnosed to the maker, and the time and effort required to send the actually measured vibration data to the maker can be omitted. it can. The sliding member includes a bearing, a ball screw, a linear guide, a motor and the like. Also,
The server that uploaded the actual measurement data analysis program, judgment program, and judgment reference data necessary for diagnostic processing is
It is for downloading these programs and judgment reference data to the information processing terminal on the user side, and the diagnostic processing itself is not executed, so avoiding concentration of the diagnostic processing of many users on one information processing device. You can
Furthermore, the actual measurement data analysis program, judgment program, and judgment reference data required for the diagnostic processing are downloaded to the information processing terminal on the user side via the communication network, and are provided with predetermined communication functions and program execution performance. If it is a processing terminal, it is possible to introduce these diagnostic programs and data into an arbitrary information processing terminal on the user side, and entrust the diagnostic processing to any available information processing device on the user side.

Furthermore, as described above, since it is not necessary to consider that the diagnostic processing of a large number of users concentrates on one information processing apparatus, it is possible to compare even an information processing apparatus having a low calculation processing capability. Expect rapid processing.

In order to achieve the above object, the machine equipment abnormality diagnosis system according to a second aspect of the present invention is the machine equipment abnormality diagnosis system according to the first aspect, further using the Internet as the communication network. It is characterized by that. In the machine equipment abnormality diagnosis system configured in this way, in order to use the Internet as a communication network for download, which has already been constructed as a wide area communication network and is also being promoted to broadband to realize high-speed communication, No extra cost is incurred due to the maintenance of a dedicated communication network, and many users can easily and inexpensively use the diagnostic system.

In order to achieve the above object, the machine equipment abnormality diagnosis system according to a third aspect of the present invention is the machine equipment abnormality diagnosis system according to the first or second aspect.
Furthermore, the server collates with customer information data that is information necessary for authenticating a user who uses the mechanical equipment,
It is characterized in that an authentication program is incorporated which allows the user who has accessed to authenticate the measured data analysis program, the determination program and the determination reference data when the authenticated user is authenticated. In the machine / equipment abnormality diagnosis system configured as described above, for example, in cooperation with the authentication program and the customer data, the version of the diagnosis program or the judgment reference data required by the user is managed in more detail on the server side. Therefore, it is possible to realize the reliable download of the optimum diagnostic program and the judgment reference data without imposing a burden on the user who accesses the server.

Further, in order to achieve the above object, the abnormality diagnosis system for mechanical equipment according to claim 4 is the abnormality diagnosis system for mechanical equipment according to any one of claims 1 to 3, further comprising: The program and data downloaded from the server to the information processing terminal of the user are characterized by adding a protect program for limiting the number of times of use or the expiration date on the downloaded information processing terminal. In the abnormality diagnosis system for mechanical equipment including one or a plurality of sliding members configured as described above, it is possible to prevent the improper repeated use and leakage of the diagnostic processing program and the judgment reference data downloaded to the user side. Moreover, it is possible to prevent misuse of different types of mechanical equipment for abnormality diagnosis.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an abnormality diagnosis system for mechanical equipment including a sliding member according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of an abnormality diagnosis system for mechanical equipment including a sliding member according to the present invention. This machine equipment abnormality diagnosis system 21 includes a server 25, which is an information processing device (computer) connected to a communication network 23, and a machine equipment 27 including one or a plurality of sliding members to be diagnosed for the presence or absence of abnormality. The information processing terminal 29 is installed on the side of the user who is using and can access the server 25 via the communication network 23. The communication network 23 is the Internet.

In the present embodiment, the mechanical equipment 27 is a rolling bearing. In the server 25, measured vibration data 31 in which sounds or vibrations generated when the mechanical equipment 27 operates are recorded.
Of the actual measurement data analysis program 41, the determination reference data 43a that records information serving as a determination reference of the presence or absence of abnormality in a specific part of the mechanical equipment 27, and the analysis result of the actual measurement data analysis program 41 are compared with the determination reference data 43a. The determination program 45 for diagnosing whether or not there is an abnormality in a specific part of the mechanical equipment 27 is used by the information processing terminal 2 on the user side.
It has been uploaded in a data format that can be executed in 9.

The judgment reference data 43a is a frequency component of vibration generated when an abnormality occurs in a specific part of the mechanical equipment 27, and a standard peak level in the frequency component.
It is calculated and set from the specifications of 7
5 is managed by the sound / vibration database 43 built in the data storage unit 47 of FIG. In the data storage unit 47,
In addition to the vibration database 43, a specification database 61 that stores information such as specifications of mechanical equipment, a customer information database 81 that stores information about users who use the mechanical equipment to be diagnosed, and an abnormal state. Various databases useful for diagnostic processing are constructed, such as a countermeasure method database 91 that stores information on countermeasure methods that respond to the user.

The measurement data analysis program 41 and the determination program 45 are stored in the diagnostic program storage section 4 of the server 25.
It has been uploaded to 6. In the case of the present embodiment, when the actual measurement data analysis program 41 is executed in the information processing terminal 29, the actual measurement vibration data 31 is subjected to appropriate analysis processing such as envelope analysis to rotate the mechanical equipment 27. Actually-measured frequency spectrum data indicating a sound or vibration that sometimes occurs is generated.

When the judgment program 45 is executed in the information processing terminal 29, the judgment reference data 43a is used as the data stored in the judgment reference data 43a. The presence or absence of an abnormality in the mechanical equipment 27 and the location of the abnormality are identified by whether or not a peak value above a certain level appears at the determination reference position on the actual measurement frequency spectrum data which is the analysis result of the actual measurement data analysis program 41. To do. Then, the determination program 45 outputs the determination result to the display unit 54 connected to the information processing terminal 29, or to a printer or the like (not shown) connected to the information processing terminal 29 if the user requests. To do.

The measurement data analysis program 41, the determination program 45, and the determination reference data 43a uploaded to the server 25 are managed by the diagnostic processing menu 48 incorporated in the server 25 so that they can be downloaded by a certain access procedure.

The abnormality diagnosis system 2 of this embodiment
In 1, the countermeasure method database 91 of the server 25 sets in detail the countermeasures to be taken by the user or the manufacturer according to the abnormal state of the diagnosed mechanical equipment 27. The user measures the measured data analysis program 41 and the determination program 45.
When you download the
Also, the determination program 45 refers to the countermeasure method database 91 according to the determination result, and outputs the countermeasure method for eliminating the abnormality to the display unit 54 or the like.

The information processing terminal 29 is a so-called personal computer, and is connected to the communication network 23 via the communication interface 51. The information processing terminal 29 includes an input means 53 such as a keyboard, data stored in the information processing terminal 29, a processing status in the information processing terminal 29, and the like.
A display means 54 such as a CRT capable of displaying various contents of the information processing terminal 29 is connected. Further, the information processing terminal 29 is connected with a vibration measuring device 56 for detecting the sound and vibration of the rotating motion of the mechanical equipment 27 through an actually measured vibration data capturing interface 57. The information processing terminal 29 uses the measured vibration data 3 measured by the vibration measuring device 56.
1 is fetched via the interface 57 and stored in a predetermined data storage unit.

The user operates from the information processing terminal 29 to the communication network 2
The server 25 is accessed via 3 to download the measured data analysis program 41, the judgment program 45, and the judgment reference data 43a onto the information processing terminal 29 of its own, and at the same time, the measured vibration data 31 is taken in to perform information processing of its own. By executing the actual measurement data analysis program 41 and the determination program 45 on the terminal 29, the own information processing terminal 29 is made to diagnose whether or not there is an abnormality in the mechanical equipment 27.

In the case of the present embodiment, as shown in FIG. 2, the diagnostic processing menu 48 of the server 25 includes customer information data which is information necessary for authenticating a user who uses the mechanical equipment 27. An authentication program is incorporated that allows the actual measurement data analysis program 41, the determination program 45, and the determination reference data 43a to be downloaded when the user is verified to be a legitimate user.

Further, in the case of the present embodiment, as shown in FIG. 3, programs 41 and 45 and data 43a downloaded from the server 25 to the information processing terminal 29 of the user.
A protect program for limiting the number of times of use or the expiration date of use of the downloaded information processing terminal 29 is added to the. This protect program is automatically executed immediately after the download is completed, and, for example, after the specified number of times of use, the measured data analysis program 41 and the determination program 4 are executed.
5, the judgment reference data 43a is deleted, and the number of times of use is limited.

In the abnormality diagnosis system 21 of the embodiment described above, when diagnosing the presence or absence of abnormality in the mechanical equipment 27, the diagnosis processing by the diagnosis program composed of the measured data analysis program 41 and the judgment program 45 is performed. ,
Since it is performed by the information processing terminal 29 installed on the user side, there is no need to send the actually measured vibration data 31, which records the sound and vibration generated by the mechanical equipment 27 to be diagnosed, to the manufacturer.
It is possible to speed up the diagnostic process by omitting the labor and time required to transmit the actually measured vibration data 31 to the manufacturer.

Further, the measured data analysis program 41, the judgment program 45, and the judgment reference data 4 necessary for the diagnostic processing are
The server 25 that has uploaded 3a uploads these programs and the determination reference data 4 to the information processing terminal 29 on the user side.
3a is downloaded, and the diagnostic process itself is not executed. Therefore, it is possible to prevent the diagnostic process of a large number of users from concentrating on one information processing device. Furthermore, the actual measurement data analysis program 41, the determination program 45, and the determination reference data 43a necessary for the diagnostic processing are downloaded to the information processing terminal 29 on the user side via the communication network 23, and a predetermined communication function and program execution are performed. As long as the information processing terminal 29 has the capability, the user can install these diagnostic programs and data into any information processing terminal 29, and the diagnostic processing can be performed by the user on any available information processing terminal. It can be left to the device. Therefore, it is possible to speed up the diagnosis process by promptly starting the diagnosis process.

Further, as described above, it is not necessary to consider that the diagnostic processing of a large number of users concentrates on one information processing apparatus, so that even an information processing apparatus having a low arithmetic processing capability can be relatively used. Expedited processing can be expected. Therefore, by adopting a popular personal computer as the information processing terminal 29, the system construction cost can be kept low by using a system configuration in which the arithmetic processing capacity of the information processing terminal 29 is appropriately suppressed, and at the same time the diagnostic processing can be speeded up. Can be realized.

Further, the abnormality diagnosis system 2 of the present embodiment
1 uses the Internet, which has already been constructed as the wide area communication network 23 as the communication network 23 for accessing the server 25 and has been promoted to the broadband for realizing high speed communication. No extra cost is required for maintenance, etc., and many users can easily and inexpensively use the diagnostic system.

Further, the abnormality diagnosis system 2 of the present embodiment
1 has an authentication program that allows only authorized users to download programs and data.
By linking the authentication program and the customer data, it becomes possible for the server 25 side to manage the diagnostic program and the version of the determination reference data 43a required by the user in more detail, and the burden on the user who accesses the server 25 is increased. It is possible to realize the reliable download of the optimum diagnostic program and the judgment reference data 43a without any trouble, and it is possible to improve the service as a maker.

Further, the abnormality diagnosis system 2 of the present embodiment
1 has a protect program added to the program or data downloaded from the server 25 to limit the number of uses or the expiration date on the information processing terminal 29.
It is possible to prevent the improper repeated use and outflow of the diagnostic processing program and the judgment reference data 43a downloaded to the user side, and also to prevent the misuse of the heterogeneous machine equipment 27 for abnormality diagnosis. Therefore, it is possible to prevent the maker's technology from being unduly leaked, and to improve the reliability of the diagnostic processing.

In the present embodiment, a protect program that is automatically executed immediately after the download of the programs and data required for the diagnostic processing from the server and limits the number of times the downloaded programs and data are used is downloaded. Attached to the target program and data. However, instead of a protect program that limits the number of times of use, a protect program that limits the expiration date and time after the download is completed, such as deleting the downloaded program or data after a certain time has elapsed from the completion of download, is attached. The same effect can be obtained by the method described above or by providing the step of accessing the server side and receiving the authentication when executing the downloaded program.

In the present invention, the specific method of analyzing the actually measured vibration data in the actually measured data analysis program is not limited to the envelope analysis and the like shown in the above embodiment. It is possible to apply various waveform processing and analysis methods for shaping the vibration waveform data and for revealing the characteristics of the waveform.

The specific processing method by the determination program is not limited to the method of the above embodiment.

Further, the mechanical equipment for diagnosing the presence or absence of abnormality is also
Not limited to rolling bearings. The present invention can be applied to various types of mechanical equipment in which an operating noise during rotation or sliding operation changes abnormally when abnormality such as damage occurs in the mechanical equipment.

The type of data stored in the data storage unit of the server according to the present invention is not limited to the above embodiment. The type of data to be stored and the database can be appropriately improved so that the authentication of the authorized user and the notification of the countermeasure according to the abnormal state can be promptly executed.

The communication network connecting the servers is not limited to the Internet. For example, an existing communication network using a public line, a communication network for cable television, or the like, which is advantageous in the region, may be selected.

[0036]

As described above, according to the abnormality diagnosis system for mechanical equipment of the present invention described in claim 1, a diagnosis program is used when diagnosing whether or not there is an abnormality in the mechanical equipment including the sliding member. Since the diagnostic process by is performed by the information processing terminal installed on the user side, there is no need to send the actually measured vibration data that records the sound and vibration generated by the mechanical equipment to be diagnosed to the maker. It is possible to speed up the diagnosis process by omitting the labor and time required for transmission to the. Further, since it is not necessary to consider that the diagnostic processing of many users concentrates on one information processing device,
Even an information processing device that does not have a high arithmetic processing capability can be expected to perform relatively quick processing. Therefore, adopting a popular personal computer as an information processing terminal,
As a system configuration in which the arithmetic processing capacity of the information processing terminal is appropriately suppressed, the system construction cost can be kept low and at the same time,
It is possible to speed up the diagnostic processing.

In the abnormality diagnosis system for mechanical equipment according to the second aspect, the Internet, which has already been constructed as a wide area communication network and has been promoted to broadband for realizing high speed communication, is used as a communication network for download. Since it is used, no extra cost is required for the maintenance of a dedicated communication network, and a large number of users can easily and inexpensively use the diagnostic system. Further, in the abnormality diagnosis system for mechanical equipment according to claim 3, for example, in cooperation with the authentication program and the customer data, the version of the diagnostic program and the judgment reference data required by the user can be more detailed on the server side. It becomes possible to manage, and it is possible to realize reliable download of the optimum diagnostic program and judgment reference data without imposing a burden on the user who accesses the server, and to improve the service as a maker. be able to.

Furthermore, in the abnormality diagnosis system for mechanical equipment according to the fourth aspect, it is possible to prevent the improper repeated use and leakage of the diagnostic processing program and the judgment reference data downloaded to the user side, and to dissimilarly. It is possible to prevent misuse or the like for abnormality diagnosis of mechanical equipment. Therefore,
It is possible to prevent unjustified outflow of the manufacturer's technology, and improve the reliability of the diagnostic processing.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of an abnormality diagnosis system for mechanical equipment according to the present invention.

FIG. 2 is a block diagram showing a configuration in which a program for authenticating a customer is incorporated in the abnormality diagnosis system for mechanical equipment of FIG.

FIG. 3 is a block diagram showing a configuration when a protect program is loaded on the abnormality diagnosis system for mechanical equipment of FIG.

FIG. 4 is a block diagram showing a configuration of a conventional abnormality diagnosis system for mechanical equipment including a sliding member.

[Explanation of symbols]

21 Abnormality diagnosis system 23 Communication network 25 servers 27 Mechanical equipment including one or more sliding members 29 Information processing terminal 31 Measured vibration data 41 Measurement data analysis program 43 Sound / Vibration Database 43a Judgment standard data 45 Judgment program 48 Diagnostic processing menu 53 Input means 54 display means 61 Specification data 81 Customer Information Database 91 Countermeasure method database

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Claims (4)

[Claims] 1. A measurement data analysis program for analyzing measurement vibration data, which records sound or vibration generated by a mechanical equipment including a sliding member, and a determination, which records information as a reference for determining whether or not there is an abnormality in the mechanical equipment. The reference data and the determination program for comparing the analysis result of the actual measurement data analysis program with the determination reference data to diagnose the presence or absence of abnormality of the mechanical equipment are executed by the information processing terminal of the user who uses the mechanical equipment. In a possible data format, the user uploads it to a server connected to a communication network so that the user can download it to his or her own information processing terminal, and the user of the mechanical equipment can make the measurement data analysis program, the determination program, and the determination. The reference data is downloaded to the own information processing terminal via the communication network, and the measured vibration data is appropriately It is characterized in that the presence / absence of abnormality of the mechanical equipment is diagnosed by loading the data into an information processing terminal of its own through an interface and executing the actual measurement data analysis program and the determination program on the own information processing terminal. Abnormality diagnosis system for mechanical equipment. 2. The abnormality diagnosis system for mechanical equipment according to claim 1, wherein the communication network uses the Internet. 3. The server performs the actual measurement when it is verified that the accessed user is an authorized user by collating with the customer information data that is information necessary for authenticating a user who uses the machine equipment. The abnormality diagnosis system for mechanical equipment according to claim 1 or 2, wherein a data analysis program and an authentication program permitting download of the determination program and the determination reference data are incorporated. 4. The program and data downloaded from the server to the information processing terminal of the user is added with a protect program for limiting the number of times of use or the expiration date of use on the downloaded information processing terminal. An abnormality diagnosis system for mechanical equipment according to any one of claims 1 to 3.