JPWO2020129818A1 - Mechanical equipment diagnostic system, mechanical equipment diagnostic method, and mechanical equipment diagnostic program - Google Patents

Abstract

A diagnostic terminal device (10) and a server device (20) are provided, and the diagnostic terminal device (10) includes a measurement unit (12), a calculation unit (112), a diagnostic terminal storage unit (114), and a terminal communication unit. The server device (20) has a server storage unit (21) and a server communication unit (22), and the management information (30) is a measurement condition or a measurement condition. And the combination of arithmetic processing conditions is specified for each machine / equipment (E), and measurement and arithmetic are performed according to the conditions specified by the management information (30) acquired from the server device (20) before the measurement and arithmetic processing are performed. Processing is done.

Description

The present invention relates to a mechanical equipment diagnostic system, a mechanical equipment diagnostic method, and a mechanical equipment diagnostic program that can be used for diagnosing mechanical equipment installed in a plant facility such as a sewage treatment facility or a water supply facility.

In the field of plant management, a portable diagnostic terminal device for diagnosing mechanical equipment measures various diagnostic items according to the mechanical equipment, and is used for a plurality of facilities in some cases. In the diagnosis of such machinery and equipment, the items and measurement methods of physical quantity measurement performed at the time of diagnosis may differ depending on the conditions related to the diagnosis such as each terminal device, each facility, and each person in charge.

In view of such problems, for example, Japanese Patent Application Laid-Open No. 2001-159916 (Patent Document 1) is an equipment management support system using a portable data management device, which is transferred from the data management device to the data management device. Based on the equipment inspection information provided, the order of patrol of each machine / equipment is sequentially displayed on the screen, and the inspection information related to the inspection method of each machine / equipment is displayed in the patrol order.

Japanese Patent Application Laid-Open No. 2001-159916

However, in a technique such as Patent Document 1, although it is possible to instruct the user of the portable terminal to instruct the inspection method of each machine and equipment, the calculation processing condition of the physical quantity data measured for the terminal is specified. I couldn't.

Therefore, it is possible to collectively manage both the measurement conditions of the physical quantity measurement performed for the diagnosis of machinery and equipment and the arithmetic processing conditions of the arithmetic processing for the obtained physical quantity data, and use these in the portable terminal. Realization of a system is required.

The mechanical equipment diagnostic system according to the present invention is a mechanical equipment diagnostic system for diagnosing mechanical equipment installed in a facility, and is configured to be able to communicate with a portable diagnostic terminal device and the diagnostic terminal device. The diagnostic terminal device includes a server device, and the diagnostic terminal device includes a measurement unit that measures physical quantities related to the machinery and equipment to obtain physical quantity data, an arithmetic unit that performs arithmetic processing on the physical quantity data to obtain diagnostic data, and the above. The server device has a terminal storage unit that stores physical quantity data, the diagnostic data, and management information acquired from the server device, and a terminal communication unit that communicates with the server device, and the server device has a plurality of the facilities. The management information includes a server storage unit that stores the management information related to the mechanical equipment and the diagnostic data received from the diagnostic terminal device, and a server communication unit that communicates with the diagnostic terminal device. Specified the measurement conditions of the measurement or the combination of the measurement conditions and the arithmetic processing conditions of the arithmetic processing for each of the machinery and equipment, and acquired the measurement conditions and the arithmetic processing from the server device before the measurement and the arithmetic processing were performed. The measurement and the arithmetic processing are performed according to the measurement conditions and the arithmetic processing conditions specified for the mechanical equipment to be diagnosed by the management information.

Further, the machine / equipment diagnosis method according to the present invention diagnoses the machine / equipment installed in the facility by using a portable diagnostic terminal device and a server device configured to be able to communicate with the diagnostic terminal device. A storage step for storing management information for specifying the measurement conditions for measurement and the calculation processing conditions for arithmetic processing in the server device for each combination of the facility and the mechanical equipment. According to the communication process of causing the diagnostic terminal device to acquire the management information from the server device and the measurement conditions specified by the management information for the mechanical equipment to be diagnosed using the diagnostic terminal device. Using the measurement process of measuring the physical quantity related to the mechanical equipment to obtain the physical quantity data and the diagnostic terminal device, arithmetic processing is performed on the physical quantity data according to the arithmetic processing conditions specified by the management information for the mechanical equipment. It is characterized by having an arithmetic process for obtaining diagnostic data by performing the above.

Further, the mechanical equipment diagnostic program according to the present invention diagnoses the mechanical equipment installed in the facility by using a portable diagnostic terminal device and a server device configured to be able to communicate with the diagnostic terminal device. A storage function for storing management information that specifies the measurement conditions for measurement and the arithmetic processing conditions for arithmetic processing for each combination of the facility and the mechanical equipment in the server device. According to the communication function of causing the diagnostic terminal device to acquire the management information from the server device and the measurement conditions specified by the management information for the mechanical equipment to be diagnosed by using the diagnostic terminal device. With respect to the physical quantity data according to the arithmetic processing conditions specified by the management information for the mechanical equipment using the measurement function for measuring the physical quantity related to the mechanical equipment and obtaining the physical quantity data and the diagnostic terminal device. It is characterized by having a computer execute an arithmetic function for obtaining diagnostic data by performing arithmetic processing.

According to these configurations, the measurement conditions and calculation processing conditions for each machine and equipment are centrally managed in the server device, and the diagnostic terminal device acquires them to perform measurement and calculation processing. It is easy to collect diagnostic data acquired under certain measurement conditions and arithmetic processing conditions by eliminating the influence of differences in diagnostic conditions such as differences in the number of people and persons in charge.

Hereinafter, preferred embodiments of the present invention will be described. However, the scope of the present invention is not limited by the preferred embodiments described below.

In one aspect of the mechanical equipment diagnostic system according to the present invention, the management information is a combination of the measurement conditions or the measurement conditions and the arithmetic processing conditions, and the facility on which the mechanical equipment is installed and the mechanical equipment. For the combination of the facility and the machine / equipment in which the machine / equipment to be diagnosed is installed by the management information acquired from the server device before the measurement and the arithmetic processing are performed. It is preferable that the measurement and the arithmetic processing are performed according to the measurement conditions and the arithmetic processing conditions specified with respect to the measurement conditions.

According to this configuration, the measurement condition and the calculation processing condition are centrally managed for each combination of the machine equipment and the facility in which the machine equipment is installed, and the diagnostic terminal device acquires this to perform the measurement and calculation processing. Therefore, it is easy to collect diagnostic data acquired under certain measurement conditions and arithmetic processing conditions. In addition, since management information across multiple facilities can be managed collectively, it is easy to unify measurement conditions and calculation processing conditions between different facilities, so diagnostic data related to machinery and equipment operated at different facilities can be aggregated. This is easy to use for statistical processing. Conventionally, with regard to measurement conditions and calculation processing conditions related to diagnosis of machinery and equipment, independent know-how has often been established for each facility, and measurement conditions and calculation processing conditions are unified among different facilities as in this configuration. This was sometimes difficult, but this problem can be solved by the above configuration.

In one aspect of the mechanical equipment diagnostic system according to the present invention, the server device further uses the management information and the diagnostic data stored in the server storage unit to diagnose the mechanical equipment. It is preferable to have a server calculation unit that performs diagnosis.

According to this configuration, in particular, diagnostic data relating to a plurality of facilities and a plurality of mechanical equipment can be aggregated for diagnosis, and the diagnostic data can be easily used for statistical processing, time-series data analysis, and the like. Further, even when the calculation load related to the calculation processing for drawing the conclusion of the diagnosis is large, the diagnosis is related to the server device side, which is relatively easy to improve the calculation processing performance as compared with the portable diagnostic terminal device. Since it is in charge of arithmetic processing, it is easy to reduce the load on the diagnostic terminal device.

As one aspect of the mechanical equipment diagnostic system according to the present invention, the diagnostic data further specifies a portion of the management information related to the measurement condition and the arithmetic processing condition applied when the diagnostic data is obtained. It is preferable to include the information to be used.

According to this configuration, the measurement conditions and arithmetic processing conditions used for generating the diagnostic data can be specified, and it is possible to understand under what conditions the diagnostic data is generated.

As one aspect of the mechanical equipment diagnostic system according to the present invention, it is preferable that the diagnostic terminal device further includes a display unit capable of displaying at least one of the physical quantity data, the diagnostic data, and the management information.

According to this configuration, it is easy to confirm the physical quantity data, the diagnostic data, and the management information at the site where the diagnosis of each machine and equipment installed in the facility is performed.

In one aspect of the mechanical equipment diagnostic system according to the present invention, the diagnostic terminal device further has a position information specifying unit capable of identifying the facility where the diagnostic terminal device is located, and the terminal communication unit is the server. Of the management information stored in the storage unit, it is preferable to selectively acquire only the portion related to the facility where the diagnostic terminal device is located from the server device.

According to this configuration, only the part of the management information related to the facility for which the diagnosis is to be performed can be acquired, so that the amount of communication related to the acquisition of the management information can be reduced. Further, since the options for diagnosis can be limited, it is easy for the user to make a selection and it is easy to suppress selection mistakes.

In one aspect of the mechanical equipment diagnostic system according to the present invention, the position information specifying unit is further configured to be able to identify the mechanical equipment arranged around the current location of the diagnostic terminal device, and the terminal communication unit is configured. Of the management information stored in the server storage unit, it is preferable to selectively acquire only the portion related to the mechanical equipment arranged around the current location from the server device.

According to this configuration, it is possible to acquire only the part of the management information related to the machine / equipment for which the diagnosis is to be performed, so that the amount of communication related to the acquisition of the management information can be reduced. Further, since the options for diagnosis can be limited, it is easy for the user to make a selection and it is easy to suppress selection mistakes.

As one aspect, the machine / equipment diagnosis method according to the present invention further includes a diagnosis step of diagnosing the machine / equipment to be diagnosed by using the management information and the diagnosis data stored in the server device. It is preferable that the server device performs the arithmetic processing related to the diagnostic step.

Further, the machine / equipment diagnosis program according to the present invention has, as one aspect, a diagnostic function for diagnosing the machine / equipment to be diagnosed by using the management information and the diagnosis data stored in the server device. Further, it is preferable to have the server device perform arithmetic processing related to the diagnostic function.

According to these configurations, in particular, diagnostic data relating to a plurality of facilities and a plurality of machinery and equipment can be aggregated for diagnosis, and the diagnostic data can be easily used for statistical processing and the like. Further, even when the calculation load related to the calculation processing for drawing the conclusion of the diagnosis is large, the diagnosis is related to the server device side, which is relatively easy to improve the calculation processing performance as compared with the portable diagnostic terminal device. Since it is in charge of arithmetic processing, it is easy to reduce the load on the diagnostic terminal device.

Further features and advantages of the present invention will be further clarified by the following illustration of exemplary and non-limiting embodiments described with reference to the drawings.

Configuration diagram of the device monitoring system according to the present invention Example of management information according to the present invention

An embodiment of the machine / equipment diagnosis system, the machine / equipment diagnosis method, and the machine / equipment diagnosis program according to the present invention will be described with reference to the drawings. In the following, the mechanical equipment diagnostic system according to the present invention is applied to the mechanical equipment diagnostic system 1 for diagnosing a plurality of mechanical equipment E installed in the plant facility P (hereinafter, simply referred to as facility P). An example of applying the diagnostic system 1 to the mechanical equipment diagnostic method will be described. As shown in FIG. 1, the mechanical equipment diagnostic system 1 according to the present embodiment includes a diagnostic terminal device 10 and a server device 20, and a plurality of diagnostic terminal devices 10 can communicate with one server device 20. It is configured in. The mechanical equipment diagnostic program according to the present invention is installed in the diagnostic terminal device 10 and the server device 20.

[System overview]
Various mechanical equipment E provided for treating sewage are installed in the plant facility P. Examples of the mechanical equipment E to be diagnosed in the present embodiment include a pump, a blower, a stirrer, a dehydrator, and a filtration device. Maintenance of the mechanical equipment E is necessary for the stable operation of the facility P, and the mechanical equipment E is diagnosed regularly or irregularly. In such a diagnosis, the inspector measures the physical quantity required for diagnosing the mechanical equipment E for each of the mechanical equipment E. The measured physical quantity becomes diagnostic data to be used for the diagnosis of the machine equipment E in the state of the physical quantity data related to the measured physical quantity as it is, or in the state where some arithmetic processing is added to the physical quantity data. In this embodiment, a mechanical equipment diagnostic system 1 that can be used for such measurement, calculation, and diagnosis is provided.

The mechanical equipment diagnostic system 1 includes a diagnostic terminal device 10 that performs measurement and arithmetic processing of physical quantities to obtain diagnostic data, and a server device 20 that stores management information 30 including conditions for measurement and arithmetic processing and diagnostic data. Be prepared. The diagnostic terminal device 10 acquires the management information 30 from the server device 20 prior to the measurement of the physical quantity, and uses this for the measurement and the arithmetic processing. The diagnostic terminal device 10 is a portable device and can be used for diagnosing a plurality of mechanical equipments E having different installation locations, and can be used for diagnosing the mechanical equipment E at a plurality of different facilities P.

[Configuration and role of management information 30]
First, the configuration and role of the management information 30 will be described. The management information 30 is used for the measurement condition 31 including the type of physical quantity to be measured and the measurement condition for each combination of the facility P and the mechanical equipment E to be diagnosed, and the arithmetic processing to be performed on the obtained physical quantity data. The calculation processing condition 32 is specified. In the example shown in FIG. 2, for example, the data set 30a (“data set 001”) of the management information 30 is “acceleration measurement” for “pump No. 1” installed in “sewage treatment plant A”. The measurement conditions are 25.6 Hz period and 30 seconds. ”And the arithmetic processing conditions such as“ Perform high-speed Fourier conversion on the measured acceleration data ”. include. Similarly, the data set 30b (“data set 006”) of the management information 30 measures “pressure at one point” for the “filtration device” installed in the “private factory A”, and the measurement conditions are as follows. It includes a measurement condition of "5 kHz cycle, 60 seconds" and a calculation processing condition of "the measured pressure data is used as it is as diagnostic data." As in the latter example, it may be specified that the arithmetic processing is not performed. The fast Fourier transform of the data processing shown in FIG. 2 may have different settings for each data set, such as the window function and the resolution of the frequency.

The management information 30 is centrally managed by the server device 20. Each diagnostic terminal device 10 acquires management information 30 from the server device 20 before measuring the physical quantity for the mechanical equipment E, and according to the measurement condition 31 and the arithmetic processing condition 32 included in the acquired management information 30, the physical quantity of the physical quantity is obtained. Performs measurement and arithmetic processing. With this configuration, the measurement condition 31 and the arithmetic processing condition 32 can be unified among the plurality of diagnostic terminal devices 10, so that the measurement and the arithmetic processing can be performed under certain conditions. As a result, diagnostic data acquired under certain conditions can be collected.

[Basic configuration of diagnostic terminal device 10]
Next, the configuration of the diagnostic terminal device 10 will be described. As shown in FIG. 1, the diagnostic terminal device 10 is a portable terminal having a tablet terminal 11 and a sensor 12 (an example of a measuring unit) connected to the tablet terminal. The tablet terminal 11 is a terminal that communicates with a signal input unit 111 that receives a signal input from the sensor 12, an arithmetic unit 112 that performs various arithmetic processes, a terminal storage unit 113 that stores various data, and a server device 20. It includes a communication unit 114, a terminal control unit 115 that controls each of the above units, and a touch panel 116 that accepts input operations and displays information. The tablet terminal 11 and the sensor 12 are connected via an analog / digital converter (not shown) and a signal amplifier (not shown), and the signal detected by the sensor 12 is sent to the tablet terminal 11 as a digital signal. Entered.

Prior to the measurement of the physical quantity for the mechanical equipment E, the terminal communication unit 114 accesses the server device 20 and acquires the latest management information 30. The acquired management information 30 is stored in the terminal storage unit 113. At this time, if the old management information 30 exists in the terminal storage unit 113, it is overwritten with the newly acquired management information 30. When the latest management information 30 is acquired, a list of combinations of the facility P to be diagnosed and the mechanical equipment E included in the management information 30 is displayed on the touch panel 116 (example of the display unit). When the combination to be diagnosed is selected by touch operation from the displayed combinations of facility P and mechanical equipment E, the data set corresponding to the selected combination of the management information 30 is read and included in the data set. The measurement condition 31 and the arithmetic processing condition 32 are displayed on the touch panel 116. The terminal control unit 115 controls the signal input unit 111 and the calculation unit 112 according to the measurement condition 31 and the calculation processing condition 32 included in the selected data set in the subsequent measurement and calculation processing.

The sensor 12 may be a known sensor that can be installed in the mechanical equipment E and can measure the physical quantity related to the mechanical equipment E, and is appropriately selected and used according to the mechanical equipment E and the type of the physical quantity to be measured. .. As such a sensor 12, an acceleration sensor, a pressure sensor, a flow rate sensor, a temperature sensor, a current sensor, or the like can be used. The measurement condition 31 related to the sensor 12 includes the type and number of sensors to be actually used, and the method of installing the sensor on the mechanical equipment E to be diagnosed, and this information is displayed on the touch panel 116. Based on the displayed measurement condition 31, the user connects an appropriate sensor as the sensor 12 to the tablet terminal 11, and installs the sensor 12 in the mechanical equipment E. For example, in the example of the data set 30a of FIG. 2, two accelerometers are installed in the "pump No. 1" before the measurement of the "pump No. 1" installed in the "sewage treatment plant A" is performed.

After the sensor 12 is connected to the tablet terminal 11 and installed in the mechanical equipment E, the measurement of the physical quantity can be started by the input operation to the touch panel 116. The physical quantity detected by the sensor 12 is converted into a digital signal and input to the signal input unit 111 to obtain physical quantity data. At this time, the conditions for the signal input unit 111 to capture the data have been examined in advance, and are centrally managed as the measurement conditions 31 which are a part of the management information 30. The measurement by the sensor 12 and the acquisition of the physical quantity data by the signal input unit 111 are performed according to the measurement condition 31 included in the selected data set. For example, in the example of the data set 30a of FIG. 2, the acceleration (example of physical quantity) measured by the two acceleration sensors is acquired in a cycle of 25.6 Hz for 30 seconds, and this is used as acceleration data (example of physical quantity data). The acquired physical quantity data is stored in the terminal storage unit 113.

Subsequently, the calculation unit 112 performs arithmetic processing on the acquired physical quantity data, and the diagnostic data 41 is generated. If the physical quantity data itself contains an enormous amount of information, it may not be possible to determine whether or not there is a problem with the mechanical equipment E used for diagnosis or other purposes by looking at the data itself. Therefore, an appropriate arithmetic process may be added to the physical quantity data so as to enable the distinction between the normal time and the abnormal time. The conditions for such arithmetic processing have been examined in advance, and are centrally managed as arithmetic processing conditions 32, which are a part of the management information 30. The arithmetic processing by the arithmetic unit 112 is performed according to the arithmetic processing condition 32 included in the selected data set. For example, in the example of the data set 30a of FIG. 2, the data obtained by performing the fast Fourier transform process on the acquired acceleration data is used as the diagnostic data 41. The acceleration data itself is a composite wave of sine waves of many frequencies, and it is difficult to understand the difference between normal and abnormal times. Therefore, by performing a fast Fourier transform on this, information on the frequency and intensity of the sine waves constituting the composite wave can be obtained, and by comparing the existence or nonexistence of frequency peaks that are not detected in the normal state and the intensity of the frequency peaks in the normal state, it is possible to obtain information in the normal state. It is possible to distinguish between an abnormal time and an abnormal time.

Note that, depending on the type of physical quantity data, arithmetic processing may not be required. For example, in the example of the data set 30b of FIG. 2, the pressure data acquired for the “filtration device” installed in the “private factory A” is not subjected to arithmetic processing, and the pressure data itself is used as the diagnostic data 41. The pressure in the filtration device can be assumed to be in the normal numerical range. On the other hand, for example, when an abnormality occurs in which the filtration device is clogged, a pressure exceeding the expected range is detected. When it is easy to distinguish between normal and abnormal physical quantity data itself as in the example of this pressure data, it is not necessary to perform arithmetic processing. In these cases, the physical quantity data is treated as the diagnostic data 41 as it is.

Further, the calculation unit 112 adds information for specifying the data set (example of the management information part) of the management information 30 used for generating the diagnostic data 41. With this configuration, even when the diagnostic data stored in the server device 20 is used after a certain period of time has passed after the measurement and arithmetic processing are performed, the measurement used to generate the diagnostic data is used. The condition 31 and the arithmetic processing condition 32 can be specified, and it is possible to understand under what conditions the diagnostic data is generated.

When the measurement of the physical quantity and the calculation process are completed, the terminal communication unit 114 transmits the diagnostic data 41 to the server device 20.

[Basic configuration of server device 20]
Subsequently, the configuration of the server device 20 will be described. As shown in FIG. 1, the server device 20 includes a server storage unit 21 that stores management information 30 and diagnostic data 41 transmitted from the diagnostic terminal device 10, and a server communication unit 22 that communicates with the diagnostic terminal device 10. , The server control unit 23 that controls the operations of the server storage unit 21 and the server communication unit 22, the management information 30 stored in the server storage unit 21, and the server calculation unit that diagnoses the machine equipment E using the diagnostic data 41. 24 and.

As described above, the management information 30 is centrally managed by the server device 20. In the present embodiment, a plurality of diagnostic terminal devices 10 are configured to be able to communicate with one server device 20, but each diagnostic terminal device 10 provides the latest management information 30 prior to the measurement. Since it is configured to be acquired from the server device 20, when the management information 30 stored in the server storage unit 21 is changed, all the measurements and diagnoses performed by all the diagnostic terminal devices 10 after the change are made. Applies to.

The server calculation unit 24 reads the management information 30 and the diagnostic data 41 stored in the server storage unit 21, and diagnoses the machine / equipment E using the information. Specifically, for example, a comparison calculation process for comparing the diagnostic data 41 with the reference data (not shown) relating to the normal state of the machine / equipment E is performed, and the diagnostic data 41 exceeds a predetermined reference from the reference data. If there is a divergence, it is diagnosed that the machine / equipment E is in an abnormal state. Here, as the reference data, the past diagnostic data 41 for the machine / equipment E to be diagnosed is statistically processed, and the past diagnostic data 41 for the machine / equipment E and other machinery / equipment of the same model is statistically processed. It is possible to use the data, the standard value set in advance for the model of the machine / equipment E, and the like.

Further, the server calculation unit 24 diagnoses each of the mechanical equipment E by using each data of the diagnostic data 41 stored in the server storage unit 21 as a single unit, and for example, a plurality of mechanical equipment E of the same model. It is also possible to statistically process the diagnostic data 41 to predict the life of the model. Since the arithmetic processing condition 32 includes the case of specifying "the measured physical quantity data is used as it is as the diagnostic data" as described above, a part or all of the diagnostic data 41 may be the acquired physical quantity data itself. .. Further, the physical quantity data may be transmitted from the diagnostic terminal device 10 to the server storage unit 21 together with the diagnostic data 41, and the server calculation unit 24 may perform the diagnosis using the physical quantity data together with the diagnostic data 41.

The input operation to the server device 20 necessary for viewing and using the diagnostic data 41 stored in the server storage unit 21 and changing the management information 30 can be performed via the diagnostic terminal device 10 or the server device. It can also be performed via a dedicated input / output device (not shown) for 20. Here, it is preferable to limit the accounts that can change the management information 30 because it is possible to suppress erroneous changes of the management information 30 and the like.

In the present embodiment, the communication between the terminal communication unit 114 and the server communication unit 22 is performed through a network such as a mobile phone line network or the Internet. With this configuration, it is easy to configure the diagnostic terminal device 10 in a portable manner by omitting the communication line, so that one diagnostic terminal device 10 can be easily used for diagnosis of a plurality of mechanical equipments E.

[Other Embodiments]
Other embodiments of the machine / equipment diagnosis system, the machine / equipment diagnosis method, and the machine / equipment diagnosis program according to the present invention will be described. The configurations disclosed in each of the following embodiments can be applied in combination with the configurations disclosed in other embodiments as long as there is no contradiction.

In the above embodiment, the configuration in which the management information 30 specifies the measurement condition 31 and the arithmetic processing condition 32 for each combination of the facility P and the mechanical equipment E to be diagnosed has been described as an example. However, without being limited to such a configuration, the management information according to the present invention may be configured to specify measurement conditions and arithmetic processing conditions for each machine and equipment. The measurement and arithmetic processing conditions required for diagnosis differ depending on the type and model of machinery and equipment, and even if the facilities are different, the same measurement and arithmetic processing conditions can be used for machinery and equipment of the same type and model. This is because it may be applicable. In this case, the part related to the facility can be omitted from the management information, and the amount of communication between the diagnostic terminal device and the server device can be reduced as compared with the configuration of the above embodiment.

In the above embodiment, the configuration in which the management information 30 specifies the measurement condition 31 and the arithmetic processing condition 32 for each combination of the facility P and the mechanical equipment E to be diagnosed has been described as an example. Here, when different measurement conditions or calculation processing conditions are set for the same machine / equipment installed in different facilities in the machine / equipment diagnosis system according to the present invention, there is a difference in the measurement conditions or the calculation conditions. May be configured to notify the user. Further, in this case, the measurement condition and the arithmetic processing condition set for the other machine / equipment may be presented to the user. Further, it may be configured so that the user can select the presented conditions.

The properties of the object to be treated (for example, the turbidity of the water to be treated, the concentration of impurities, etc.) differ from facility to facility. Therefore, the load factor (weighting coefficient) for each facility is set based on the properties of the object to be processed in each facility, and the weighted operation record data obtained by multiplying the operation record data of the machinery and equipment of each facility by the load factor (weighting coefficient) is obtained. Based on this, the measurement conditions and arithmetic processing conditions of each equipment may be determined.

For example, a value obtained by normalizing a plurality of operation record data such as the cumulative operating time and the cumulative number of outages of machinery and equipment for each facility and a load factor (weighting coefficient) set for each facility can be set as an arbitrary facility. When combined with machinery and equipment, the product-sum calculation value of the cumulative operating time and the load factor (weight coefficient) over the past predetermined period, and the product-sum calculation value of the cumulative number of stops and the load factor (weight coefficient). A machine learning device may be constructed in which at least one is input and at least one of the failure occurrence time and the failure occurrence rate is output, and the measurement conditions and the arithmetic processing conditions may be determined based on the results. In addition, even if the same machinery and equipment are used, if the facility has a long cumulative operating time, or if the cumulative operating time is short but the cumulative number of outages is large, the load factor is set higher and the machine and equipment are used. Measurement conditions and arithmetic processing conditions suitable for the purpose may be determined, such as by combining them. If there is a machine or equipment with a relatively large variation in measurement data, the measurement priority of the machine or equipment may be set high.

Algorithms used in the above machine learning devices include one-class support vector machine (LOF) (local outlier factor) method and IF (Isolation) that predict the occurrence of abnormalities due to a specific combination. Forest) method, RC (Robust Covariance) method and the like are exemplified.

In the above embodiment, the configuration in which the diagnostic terminal device 10 has the tablet terminal 11 and the sensor 12 as separate bodies has been described as an example. However, the diagnostic terminal device according to the present invention is not limited to such a configuration, and the measurement unit, the calculation unit, the terminal storage unit, and the terminal communication unit may be integrally configured.

In the above embodiment, the diagnostic terminal device 10 has a tablet terminal 11 and a sensor 12, and the tablet terminal 11 has a signal input unit 111, a calculation unit 112, a terminal storage unit 113, a terminal communication unit 114, and a terminal control unit 115. And the configuration including each part of the touch panel 116 has been described as an example. However, the diagnostic terminal device according to the present invention may have parts having other functions of the above-mentioned parts. For example, the diagnostic terminal device may have a position information specifying unit capable of specifying the coordinates of the point where the diagnostic terminal device is located. The position information specifying unit may be configured to use a known position information specifying device such as GPS, or may be configured so that the user can input information for specifying the position information.

In the above embodiment, the configuration in which the tablet terminal 11 acquires the entire management information 30 from the server device 20 has been described as an example. However, without being limited to such a configuration, the diagnostic terminal device according to the present invention selectively selects only the portion of the management information stored in the server device related to the facility where the diagnostic terminal device is actually located. It may be configured to be obtained in. If the diagnostic terminal device has a location information identification unit, the facility where the diagnostic terminal device is actually located is specified based on the location information specified by the location information identification unit, and the facility is included in the management information. It may be possible to selectively acquire only such a part. Further, the mechanical equipment arranged around the current location of the diagnostic terminal device may be specified based on the position information, and only the part related to the mechanical equipment in the management information may be selectively acquired. Alternatively, the entire management information may be acquired, but when the user selects a facility or machine / equipment, the facility or machine / equipment specified based on the location information may be preferentially displayed. ..

It should be understood that with respect to other configurations, the embodiments disclosed herein are exemplary in all respects and the scope of the invention is not limited thereto. Those skilled in the art will be able to easily understand that modifications can be made as appropriate without departing from the spirit of the present invention. Therefore, another embodiment modified without departing from the spirit of the present invention is naturally included in the scope of the present invention.

The present invention can be used for diagnosing mechanical equipment such as pumps, blowers, stirrers, dehydrators, and filtration devices installed in plant facilities such as sewage treatment facilities and water supply facilities.

1: Mechanical equipment diagnostic system 10: Diagnostic terminal device 11: Tablet terminal 111: Signal input unit 112: Calculation unit 113: Terminal storage unit 114: Terminal communication unit 115: Terminal control unit 116: Touch panel 12: Sensor 20: Server device 21 : Server storage unit 22: Server communication unit 23: Server control unit 24: Server calculation unit 30: Management information 30a, 30b: Data set 31: Measurement condition 32: Calculation processing condition 41: Diagnostic data P: Plant facility E: Mechanical equipment

Claims (11)

It is a mechanical equipment diagnostic system for diagnosing the mechanical equipment installed in the facility.
A portable diagnostic terminal device and a server device configured to be able to communicate with the diagnostic terminal device are provided.
The diagnostic terminal device includes a measuring unit that measures physical quantities related to the machinery and equipment to obtain physical quantity data, an arithmetic unit that performs arithmetic processing on the physical quantity data to obtain diagnostic data, and the physical quantity data, the diagnostic data, and the like. It also has a terminal storage unit that stores management information acquired from the server device, and a terminal communication unit that communicates with the server device.
The server device is a server storage unit that stores the management information related to the plurality of facilities and the machine equipment, and the diagnostic data received from the diagnostic terminal device, and a server communication unit that communicates with the diagnostic terminal device. And have
The management information specifies the measurement condition of the measurement or the combination of the measurement condition and the arithmetic processing condition of the arithmetic processing for each machine and equipment.
The measurement and the arithmetic processing are performed according to the measurement conditions and the arithmetic processing conditions specified for the machine and equipment to be diagnosed by the management information acquired from the server device before the measurement and the arithmetic processing are performed. The mechanical equipment diagnostic system that is performed. The management information specifies the measurement condition or the combination of the measurement condition and the arithmetic processing condition for each combination of the facility in which the machine is installed and the machine / equipment.
The measurement condition specified for the combination of the facility and the machine / equipment to be diagnosed by the management information acquired from the server device before the measurement and the arithmetic processing are performed. The mechanical equipment diagnostic system according to claim 1, wherein the measurement and the arithmetic processing are performed according to the arithmetic processing conditions. The server device further comprises a server calculation unit that diagnoses the machinery and equipment to be diagnosed by using the management information and the diagnostic data stored in the server storage unit according to claim 1 or 2. Described mechanical equipment diagnostic system. 3. The mechanical equipment diagnostic system described in. The mechanical equipment diagnostic system according to any one of claims 1 to 4, wherein the diagnostic terminal device further includes a display unit capable of displaying at least one of the physical quantity data, the diagnostic data, and the management information. The diagnostic terminal device further has a position information specifying unit capable of identifying the facility in which the diagnostic terminal device is located.
Any of claims 1 to 5, wherein the terminal communication unit selectively acquires only a portion related to the facility where the diagnostic terminal device is located from the management information stored in the server storage unit. The mechanical equipment diagnostic system according to item 1. The position information specifying unit is further configured to be able to identify the mechanical equipment arranged around the current location of the diagnostic terminal device.
The sixth aspect of claim 6, wherein the terminal communication unit selectively acquires only a portion related to the mechanical equipment arranged around the current location from the management information stored in the server storage unit from the server device. Mechanical equipment diagnostic system. A mechanical equipment diagnostic method for diagnosing mechanical equipment installed in a facility by using a portable diagnostic terminal device and a server device configured to be able to communicate with the diagnostic terminal device.
A storage step of storing management information that specifies the measurement conditions of the measurement for the diagnosis and the arithmetic processing conditions of the arithmetic processing in the server device for each combination of the facility and the mechanical equipment.
A communication process for causing the diagnostic terminal device to acquire the management information from the server device, and
A measurement step of using the diagnostic terminal device to measure a physical quantity related to the machine and equipment according to the measurement conditions specified by the management information for the machine and equipment to be diagnosed, and obtaining physical quantity data.
A machine / equipment diagnostic method comprising a calculation step of using the diagnosis terminal device to perform calculation processing on the physical quantity data in accordance with calculation processing conditions specified by the management information for the machine / equipment to obtain diagnostic data. Further provided with a diagnostic step of diagnosing the mechanical equipment to be diagnosed using the management information and the diagnostic data stored in the server device.
The machine / equipment diagnosis method according to claim 8, wherein the server device performs arithmetic processing related to the diagnosis step. A mechanical equipment diagnostic program for diagnosing mechanical equipment installed in a facility using a portable diagnostic terminal device and a server device configured to be able to communicate with the diagnostic terminal device.
A storage function for storing management information that specifies measurement conditions for measurement for diagnosis and calculation processing conditions for calculation processing in the server device for each combination of the facility and the machine equipment, and a storage function.
A communication function that causes the diagnostic terminal device to acquire the management information from the server device, and
A measurement function that uses the diagnostic terminal device to measure a physical quantity related to the machine and equipment according to the measurement conditions specified by the management information for the machine and equipment to be diagnosed, and obtains physical quantity data.
Using the diagnostic terminal device, the mechanical equipment causes a computer to execute an arithmetic function for obtaining diagnostic data by performing arithmetic processing on the physical quantity data according to the arithmetic processing conditions specified by the management information for the mechanical equipment. Diagnostic program. Further provided with a diagnostic function for diagnosing the mechanical equipment to be diagnosed by using the management information and the diagnostic data stored in the server device.
The machine / equipment diagnostic program according to claim 10, wherein the server device performs arithmetic processing related to the diagnostic function.

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