JP7257060B2 - Measurement diagnostic device - Google Patents

Description

The present invention relates to techniques for diagnosing steam traps.

In a plant or the like having a steam piping system, condensate (drainage) may occur in the piping system due to heat exchange or heat radiation. If this condensate stays in the piping system, it causes a decrease in operating efficiency. For this reason, generally, a steam trap is installed at an appropriate place in the piping system, and the steam trap discharges the condensate to the outside of the piping system.

If the sealing performance of the steam trap is impaired due to aged deterioration, malfunction, or the like, steam in the steam piping system leaks to the outside through the steam trap, resulting in unnecessary steam loss. For this reason, as disclosed in Patent Document 1 below, etc., the temperature of the steam trap is periodically measured using a tester, and each steam is measured based on the measurement data indicating the measurement result and the necessary information such as the threshold value. Work is being done to diagnose the trap. Diagnosis data indicating the result of the diagnosis is output to the host computer and managed in the host computer.

Japanese Patent No. 2954183

However, in the above diagnostic work, the measurement of the steam trap is performed by pressing the tip of the probe provided on the tester main body against the steam trap. Therefore, if the tip of the probe is not sufficiently pressed against the steam trap, if the pressing position of the tip of the probe is inappropriate, or if the steam trap is wet due to rain or condensation, etc., the steam trap may may not be properly measured. In such a case, the steam trap may be diagnosed using inappropriate measurement data, and an erroneous diagnosis result may be output.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a measurement diagnostic apparatus capable of outputting appropriate diagnostic results for a steam trap.

A measurement diagnostic apparatus according to the present invention is a portable measurement diagnostic apparatus for diagnosing a steam trap, comprising a measurement unit that outputs measurement data of the steam trap, and processing the measurement data according to a predetermined measurement diagnosis algorithm. a diagnostic unit that generates diagnostic data indicating the diagnostic result of the steam trap; and learning through machine learning of the relationship between the data that indicates the past measurement result of the steam trap and the data that indicates the past diagnostic result of the steam trap. an acquisition unit for acquiring verification data indicating a diagnosis result of the steam trap corresponding to the measurement data by inputting the measurement data into the finished model; and a diagnosis result indicated by the diagnosis data and a diagnosis result indicated by the verification data. and an output unit for outputting the diagnostic data when the determination unit determines that the measurement data is valid based on the comparison result of the And prepare.

According to this configuration, by processing the measurement data of the steam trap according to the measurement diagnosis algorithm, the diagnosis data indicating the diagnosis result of the steam trap is generated. On the other hand, the same measurement data is input to the trained model, and verification data indicating the diagnosis result of the steam trap corresponding to the measurement data is obtained. Then, whether or not the measurement data is valid is determined based on the result of comparison between the diagnosis result indicated by the diagnosis data and the diagnosis result indicated by the verification data.

Thus, in this configuration, the results of diagnosing the steam trap by two different methods using the same measurement data indicated by the diagnosis data and the verification data are compared to determine the validity of the measurement data. Therefore, with this configuration, the validity of the measurement data can be determined more appropriately and easily than when determining the validity of the measurement data used for the diagnosis from the result of diagnosing the steam trap by one method. .

Moreover, according to this configuration, the diagnostic data generated using the measurement data appropriately determined to be valid is output. Therefore, this configuration can output diagnostic data that indicates a more appropriate diagnostic result than diagnostic data generated using measurement data whose validity has not been appropriately determined.

In the above configuration, the determining unit determines that the measurement data is valid when the diagnostic result indicated by the diagnostic data and the diagnostic result indicated by the verification data match, and determines that the diagnostic result indicated by the diagnostic data and the diagnostic result indicated by the verification data are valid. If the diagnostic result indicated by the verification data does not match, it may be determined that the measurement data is not valid.

According to this configuration, the diagnosis data and the verification data indicate whether the results of diagnosing the steam trap by two different methods using the same measurement data match or not, based on the diagnosis result of one method. The validity of the measured data can be determined more appropriately and easily than when the validity of the measured data is determined using the

The above configuration may further include a first notification unit that provides guidance information to guide re-measurement of the steam trap when the determination unit determines that the measurement data is not valid.

According to this configuration, the operator can quickly re-measure the steam trap according to the guidance indicated by the guidance information when it is determined that the measurement data is not valid.

The above configuration further includes a probe whose tip is pressed against the steam trap, and when it is detected that the tip of the probe is pressed against the steam trap after the guide information is reported by the first reporting unit. , an execution unit that executes a measurement diagnosis process in which the measurement unit outputs the measurement data, the diagnosis unit generates the diagnosis data, the acquisition unit acquires the verification data, and the determination unit makes a determination in this order. You may prepare.

According to this configuration, the measurement diagnosis process is executed when it is detected that the tip of the probe is pressed against the steam trap after notification of the guidance information. For this reason, when the worker presses the tip of the probe against the steam trap in order to remeasure the steam trap according to the guidance indicated by the guidance information, the measurement data showing the remeasurement of the steam trap and the result of the remeasurement is valid.

In the above configuration, when the determination unit determines that the measurement data is not valid, the history of the determination result by the determination unit indicates that the measurement of the steam trap is impossible. When a predetermined measurement impossibility condition for determination is satisfied, measurement impossibility information indicating that the measurement of the steam trap is impossible may be notified.

According to this configuration, when the determination unit determines that the measurement data is not valid and the history of the determination result by the determination unit satisfies the measurement impossibility condition, the measurement indicates that the steam trap cannot be measured. Impossibility information is reported. Therefore, the operator can understand that the measurement of the steam trap is impossible from the notified measurement-impossible information. This allows the operator to quickly consider the action required to diagnose the steam trap.

Further, according to this configuration, when the determination unit determines that the measurement data is not valid and the history of determination results by the determination unit does not satisfy the measurement impossibility condition, guidance information is displayed. After notification of the guidance information, if it is detected that the tip of the probe is pressed against the steam trap, measurement diagnosis processing is executed. Therefore, while the history of determination results by the determining unit does not satisfy the unmeasurable condition, the operator presses the tip of the probe against the steam trap to measure the steam trap until the measurement data is determined to be valid. Work can be repeated.

In the above configuration, the measurement impossibility condition may be set such that the determination unit continuously determines that the measurement data is not valid for a predetermined number of times or more.

According to this configuration, until the determination unit continuously determines that the measurement data is not valid for a predetermined number of times or more, the operator keeps the tip of the probe in the steam trap until the measurement data is determined to be valid. The operation of pressing and measuring the steam trap can be repeated.

The above configuration may further include a second reporting unit that reports warning information indicating that the measurement of the steam trap has failed when the determination unit determines that the measurement data is not valid.

According to this configuration, the operator can easily notice that the measurement of the steam trap has failed when the warning information is notified. Therefore, the operator can easily redo the work of measuring the steam trap by pressing the probe against the steam trap.

ADVANTAGE OF THE INVENTION According to this invention, the measurement diagnostic apparatus which can output the appropriate diagnostic result of a steam trap can be provided.

1 is an external view of a measurement diagnostic device; FIG. It is a block diagram which shows an example of a structure of a measurement diagnostic apparatus. 4 is a flow chart showing a work flow for diagnosing a steam trap using a measurement diagnostic device;

(embodiment)
A measurement diagnostic apparatus 1 according to an embodiment of the present invention will be described below. The measurement diagnostic device 1 is a portable device that diagnoses a steam trap based on the measurement result of a steam trap provided in a pipe or pipe through which steam or condensate flows. FIG. 1 is an external view of the measurement diagnostic device 1. FIG. FIG. 2 is a block diagram showing an example of the configuration of the measurement diagnostic device 1. As shown in FIG.

Specifically, as shown in FIG. 1, the measurement diagnostic apparatus 1 includes a rectangular parallelepiped housing 9 made of heat-resistant plastic or the like, and a rod-shaped probe 2 protruding from an upper surface 91 of the housing 9. there is

The housing 9 is grasped by an operator during the steam trap diagnostic work. The probe 2 includes a tubular probe 21 and a thermocouple 22 arranged in a non-contact state on the inner peripheral surface of the probe 21 . One ends of the two thermocouple wires forming the thermocouple 22 are welded to a contact plate (not shown) at the tip of the probe 21 and urged so as to be retractable from the inside to the outside.

In other words, the measurement diagnostic apparatus 1 is configured such that when the tip of the probe 21 is pressed against the surface of the steam trap while the housing 9 is held by the operator, Measure the vibration and temperature of the steam trap transmitted to the contact plate.

A display unit 11 , an operation unit 12 , and a voice conversion unit 15 are provided on the outer surface of the housing 9 .

The display unit 11 is composed of, for example, a liquid crystal display (LCD). The display unit 11 displays various kinds of information such as the result of measurement of the steam trap and the diagnosis result of the steam trap based on the result of the measurement.

The operation unit 12 includes a plurality of switches such as membrane switches and mechanical switches for allowing the operator to input various instructions to the measurement diagnostic apparatus 1 . When each switch provided in the operation unit 12 is operated by the operator, a signal indicating an instruction associated with the operation of each switch is output to the control unit 4 (FIG. 2), which will be described later.

The audio conversion unit 15 converts an audio signal generated by the control unit 4 (FIG. 2), which will be described later, into audio. The audio signal includes an audio signal indicating that the steam trap measurement has failed, an audio signal that guides the re-measurement of the steam trap, and an audio signal that indicates that the steam trap cannot be measured. .

Specifically, the audio conversion unit 15 includes an earphone jack 51 that outputs an audio signal, an earphone 52 detachably connected to the earphone jack 51, and a speaker 53 that converts the audio signal into audio. . Earphone 52 converts the audio signal output from earphone jack 51 into sound.

Further, the measurement diagnostic apparatus 1 includes a measurement section 3, a storage section 13, an IF section 14, and a control section 4 inside the housing 9, as shown in FIG.

The measurement unit 3 measures the vibration and temperature of the steam trap transmitted to the probe 2 and outputs measurement data indicating the measurement results. Specifically, the measurement unit 3 includes a vibration measurement circuit 31 and a temperature measurement circuit 32 .

The vibration measurement circuit 31 measures the steam transmitted to the probe 21 at predetermined time intervals (for example, 0.5 second intervals) for a predetermined period (for example, 10 seconds) when the tip of the probe 21 is pressed against the steam trap. Vibration of the trap is measured, and vibration data indicating the measured vibration is output to the control unit 4 . The temperature measurement circuit 32 measures the temperature of the steam trap transmitted to the contact plate using the thermocouple 22 and outputs temperature data indicating the measured temperature to the controller 4 . That is, the measurement data output by the measurement unit 3 includes the vibration data output by the vibration measurement circuit 31 and the temperature data output by the temperature measurement circuit 32 .

The storage unit 13 is configured using a rewritable semiconductor memory such as a flash memory. Data used for control in the control unit 4 is stored in the storage unit 13 . In addition, data used for control in the control unit 4 is stored in advance in the storage unit 13 .

For example, the storage unit 13 stores data representing past measurement results of steam traps and data representing past diagnosis results of steam traps, which are created by performing machine learning such as deep learning using a neural network. A trained model obtained by performing machine learning on the relationship is stored in advance.

The learned model is created, for example, as follows. Measurements are taken of steam traps with known diagnostics. The steam trap diagnosis results include a normal condition, a steam leak condition, a condensate discharge failure condition, a blockage condition, and the like. Then, machine learning is performed in a learning information processing device (not shown) using data indicating the measurement result of the steam trap as an explanatory variable and data indicating a known diagnosis result as an objective variable. As a result, a trained model is created that, when measurement data indicating the measurement results of the steam trap is input, outputs verification data indicating the diagnosis results of the steam trap corresponding to the measurement data.

The IF unit 14 is configured using a communication circuit compatible with any wireless communication standard such as Bluetooth (registered trademark), and transmits and receives data between the control unit 4 and an external device. Also, the IF section 14 is configured using an interface circuit compatible with any interface standard such as USB. The IF unit 14 connects the control unit 4 with an external device connected to the input/output terminal (not shown) provided on the housing 9 (FIG. 11) connected to the interface circuit. send and receive data between

The control unit 4 includes, for example, a CPU (Central Processing Unit) (not shown) that executes predetermined arithmetic processing, a non-volatile memory (not shown) such as an EEPROM storing a predetermined control program, and temporarily storing data. A RAM (Random Access Memory) (not shown) and these peripheral circuits are provided.

The control unit 4 performs overall control of each unit of the measurement diagnostic apparatus 1 by causing the CPU to execute a control program stored in a nonvolatile memory or the like.

For example, every time the control unit 4 receives vibration data from the vibration measuring circuit 31 for a predetermined period of time (eg, 10 seconds) at predetermined time intervals (eg, 0.5 second intervals), the vibration level indicated by the vibration data is displayed on the display unit. 11. Further, when receiving the temperature data from the temperature measurement circuit 32 , the control unit 4 displays the temperature of the steam trap indicated by the received temperature data on the display unit 11 .

In addition, the control unit 4 causes the CPU to execute a control program stored in a non-volatile memory or the like, so that the diagnosis unit 41, the acquisition unit 42, the determination unit 43, the output unit 44, the notification unit 45 (first notification unit, second notification unit) and execution unit 46.

The diagnosis unit 41 diagnoses the steam trap by processing the measurement data acquired from the measurement unit 3 according to a predetermined measurement diagnosis algorithm, and generates diagnosis data indicating the diagnosis result.

For example, in the measurement diagnosis algorithm, the vibration and temperature of the steam trap indicated by the vibration data and temperature data included in the measurement data acquired from the measurement unit 3 are compared with predetermined threshold values stored in a non-volatile memory or the like. . Then, based on the result of the comparison, it is diagnosed whether the steam trap is in a normal state, a steam leak state, a drain (condensate) discharge failure state, or a blocked state, and the diagnosis result is displayed. Generate diagnostic data.

The acquisition unit 42 inputs the measurement data acquired from the measurement unit 3 to the learned model stored in advance in the storage unit 13, thereby acquiring verification data indicating the diagnosis result of the steam trap corresponding to the measurement data. do.

The determination unit 43 determines whether the measurement data acquired from the measurement unit 3 is appropriate based on the result of comparison between the diagnosis result indicated by the diagnostic data generated by the diagnosis unit 41 and the diagnosis result indicated by the verification data acquired by the acquisition unit 42. Determine whether or not there is

Specifically, when the diagnostic result indicated by the diagnostic data generated by the diagnostic unit 41 and the diagnostic result indicated by the verification data acquired by the acquisition unit 42 match, the determination unit 43 obtains from the measurement unit 3 The measured data obtained is judged to be valid. On the other hand, if the diagnostic result indicated by the diagnostic data generated by the diagnostic unit 41 and the diagnostic result indicated by the verification data acquired by the acquisition unit 42 do not match, the determination unit 43 determines the measurement data acquired from the measurement unit 3. is not considered valid.

For example, it is assumed that diagnosis data generated by the diagnosis unit 41 by processing the measurement data acquired from the measurement unit 3 according to a predetermined measurement diagnosis algorithm indicates that the steam trap is in a normal state. It is also assumed that the verification data obtained by the obtaining unit 42 by inputting the measurement data into the learned model stored in advance in the storage unit 13 indicates that the steam trap is in a normal state. In this case, the determination unit 43 determines that the diagnosis result indicated by the diagnostic data generated by the diagnosis unit 41 and the diagnosis result indicated by the verification data acquired by the acquisition unit 42 match, so the measurement data acquired from the measurement unit 3 is Judged as valid.

On the other hand, it is assumed that diagnostic data generated by the diagnostic unit 41 by processing the measurement data acquired from the measurement unit 3 according to a predetermined measurement diagnostic algorithm indicates that the steam trap is in a normal state. It is also assumed that the verification data obtained by the obtaining unit 42 by inputting the measurement data into the learned model stored in advance in the storage unit 13 indicates that the steam trap is in the steam leak state. In this case, the determination unit 43 determines that the diagnosis result indicated by the diagnostic data generated by the diagnosis unit 41 does not match the diagnosis result indicated by the verification data acquired by the acquisition unit 42, so the measurement data acquired from the measurement unit 3 is judged to be inappropriate.

Note that the determination unit 43 determines whether or not the diagnosis result indicated by the diagnostic data generated by the diagnosis unit 41 and the diagnosis result indicated by the verification data acquired by the acquisition unit 42 match each other. It may be determined whether or not the measurement data obtained from the measurement unit 3 is valid based on the result of the comparison by the method of (1).

The output unit 44 outputs diagnostic data generated by the diagnostic unit 41 when the determination unit 43 determines that the measurement data acquired from the measurement unit 3 is valid. Specifically, the output unit 44 stores diagnostic data generated by the diagnostic unit 41 in the storage unit 13 . It should be noted that the output unit 44 may be configured to display the diagnostic result indicated by the diagnostic data generated by the diagnostic unit 41 on the display unit 11 . Also, the output unit 44 may be configured to transmit diagnostic data generated by the diagnostic unit 41 to an external device via the IF unit 14 . Moreover, the output unit 44 may further output the measurement data acquired from the measurement unit 3 in the same manner as the diagnostic data.

When the determination unit 43 determines that the measurement data acquired from the measurement unit 3 is not valid, the notification unit 45 provides warning information indicating that the measurement of the steam trap has failed.

Specifically, the notification unit 45 displays on the display unit 11 a message “Steam trap measurement failed” indicating that the steam trap measurement has failed, as warning information.

Further, the notification unit 45 may output an audio signal indicating that the measurement of the steam trap has failed to the audio conversion unit 15 as warning information. As a result, the speaker 53 or the earphone 52 connected to the earphone jack 51 may output a sound indicating that the steam trap measurement has failed. In this case, even if the operator presses the tip of the probe 2 against the steam trap in such a position that the display unit 11 cannot be visually recognized, the operator can notice that the measurement of the steam trap has failed.

In addition, when the determination unit 43 determines that the measurement data acquired from the measurement unit 3 is not valid, the notification unit 45 provides guidance information that guides re-measurement of the steam trap.

Specifically, the notification unit 45 displays on the display unit 11 a message "Please remeasure the steam trap" for guiding remeasurement of the steam trap as guidance information.

Further, the notification unit 45 may output to the audio conversion unit 15 as guidance information an audio signal that guides re-measurement of the steam trap. As a result, the speaker 53 or the earphone 52 connected to the earphone jack 51 may output a voice guiding the re-measurement of the steam trap. In this case, even if the operator presses the tip of the probe 2 against the steam trap in such a position that the display unit 11 cannot be visually recognized, the operator can notice that the steam trap needs to be measured again. .

When the execution unit 46 detects that the tip of the probe 2 is pressed against the steam trap, the execution unit 46 outputs measurement data by the measurement unit 3, generates diagnosis data by the diagnosis unit 41, and acquires verification data by the acquisition unit 42. Then, a measurement diagnosis process is executed in which determination by the determination unit 43 is performed in order.

Specifically, when receiving at least one of the vibration data and the temperature data from the measurement unit 3, the execution unit 46 detects that the tip of the probe 2 is pressed against the steam trap, and performs measurement diagnosis processing. Execute. Note that the execution unit 46 is not limited to this, and may detect that the tip of the probe 2 is pressed against the steam trap by another method.

A work flow for diagnosing a steam trap using the measurement diagnosis device 1 will be described below. FIG. 3 is a flow chart showing the flow of work for diagnosing a steam trap using the measurement diagnosis device 1. As shown in FIG.

When the execution unit 46 detects that the operator has pressed the probe 2 against the steam trap (YES in step S101), the execution unit 46 executes measurement diagnosis processing consisting of steps S102 to S105.

In step S<b>102 , the measurement unit 3 measures the vibration and temperature of the steam trap transmitted to the probe 2 , and the diagnosis unit 41 acquires the measurement data output to the control unit 4 .

In step S103, the diagnosis unit 41 diagnoses the steam trap by processing the measurement data acquired in step S102 according to a predetermined measurement diagnosis algorithm, and generates diagnosis data indicating the diagnosis result.

In step S104, the acquisition unit 42 inputs the measurement data acquired in step S102 to the learned model stored in advance in the storage unit 13, thereby verifying the diagnosis result of the steam trap corresponding to the measurement data. Get data.

In step S105, the determination unit 43 determines whether the measurement data acquired in step S102 is obtained based on the comparison result between the diagnosis result indicated by the diagnostic data generated by the diagnosis unit 41 and the diagnosis result indicated by the verification data obtained by the acquisition unit 42. Determine whether it is valid or not.

If it is determined in step S105 that the measurement data acquired in step S102 is valid (YES in step S105), the output unit 44 outputs the measurement data acquired in step S102 and the diagnostic data generated in step S103. (step S109). This completes the operation of diagnosing the steam trap shown in FIG.

On the other hand, it is assumed that the measurement data acquired in step S102 is determined to be invalid in step S105. In this case (NO in step S105), the notification unit 45 determines whether or not the history of determination results by the determination unit 43 satisfies a predetermined measurement impossibility condition for determining that the steam trap cannot be measured. Determine (step S106).

The history of the determination result by the determination unit 43 refers to the operation performed by the operator during the period from when the operator starts the work of diagnosing the steam trap shown in FIG. The determination result by the determination part 43 performed by S105 is shown. Further, in the present embodiment, the measurement impossibility condition is set such that the determination unit 43 continuously determines that the measurement data is not valid for a predetermined number of times (for example, two times) or more.

In this case, in step S106, if the determination unit 43 continuously determines that the measurement data is not valid for a predetermined number of times or more, the notifying unit 45 determines that the history of determination results by the determination unit 43 satisfies the measurement impossibility condition. judge.

In addition, the unmeasurable condition is not limited to the above. The unmeasurable condition is, for example, the elapsed time from when the determination unit 43 determines that the measured data is not valid in the previous step S105 until it determines that the measured data is not valid in this step S105 is a predetermined time ( For example, it may be set to be shorter than 30 seconds).

In this case, in step S106, the notification unit 45 determines the elapsed time from when the determination unit 43 determined that the measurement data was invalid in the previous step S105 to when it determined that the measurement data was invalid in this step S105. If it is shorter than the predetermined time, it is determined that the history of determination results by the determination unit 43 satisfies the measurement impossibility condition.

When it is determined in step S106 that the history of the determination result by the determination unit 43 satisfies the measurement impossibility condition (YES in step S106), the notification unit 45 notifies measurement impossibility information indicating that the steam trap cannot be measured. (step S110). In this case, the operation of diagnosing the steam trap shown in FIG. 3 is completed.

Specifically, in step S110, the reporting unit 45 displays a message “Steam trap cannot be measured” indicating that the steam trap cannot be measured on the display unit 11 as the measurement impossibility information.

In addition, in step S110, the notification unit 45 may output an audio signal indicating that the measurement of the steam trap is impossible to the audio conversion unit 15 as the measurement impossibility information. As a result, the speaker 53 or the earphone 52 connected to the earphone jack 51 may output a sound indicating that the steam trap cannot be measured. In this case, even if the operator presses the tip of the probe 2 against the steam trap in such a position that the display unit 11 cannot be visually recognized, the operator can notice that the steam trap cannot be measured. .

On the other hand, when it is determined in step S106 that the history of determination results by the determination unit 43 does not satisfy the measurement impossibility condition (NO in step S106), the notification unit 45 notifies warning information indicating that the measurement of the steam trap has failed. (step S107). Further, the notification unit 45 notifies guidance information for re-measuring the steam trap (step S108).

Note that when the execution unit 46 detects that the operator has pressed the probe 2 against the steam trap after the guidance information was notified in step S108 (YES in step S101), the execution unit 46 performs measurement diagnosis consisting of steps S102 to S105. Execute the process again.

According to the configuration of the above embodiment, by processing the measurement data of the steam trap according to the measurement diagnosis algorithm, the diagnosis data indicating the diagnosis result of the steam trap is generated. On the other hand, the same measurement data is input to the trained model, and verification data indicating the diagnosis result of the steam trap corresponding to the measurement data is obtained. Then, whether or not the measurement data is valid is determined based on the result of comparison between the diagnosis result indicated by the diagnosis data and the diagnosis result indicated by the verification data.

Thus, in the configuration of the above embodiment, the results of diagnosing the steam trap by two different methods using the same measurement data indicated by the diagnosis data and the verification data are compared to determine the validity of the measurement data. do. Therefore, the configuration of the above embodiment makes it possible to more appropriately and easily determine the validity of the measurement data than when determining the validity of the measurement data used for the diagnosis from the result of diagnosing the steam trap by one method. be able to.

Further, according to the configuration of the above embodiment, the diagnostic data generated using the measurement data appropriately determined to be valid is output. Therefore, the configuration of the above embodiment can output diagnostic data that indicates a more appropriate diagnostic result than diagnostic data generated using measurement data whose validity has not been appropriately determined.

In addition, the said embodiment is only an illustration of embodiment which concerns on this invention, and is not the meaning which limits this invention to the said embodiment.

(1) The measurement unit 3 may be configured to measure the vibration of the steam trap and output measurement data indicating the measurement result of the vibration. Specifically, the probe 2 may be configured without the thermocouple 22 (FIG. 2) and the measurement unit 3 may be configured without the temperature measurement circuit 32 (FIG. 2). Similarly, the measurement unit 3 may be configured to measure the temperature of the steam trap and output measurement data indicating the measurement result of the temperature. Specifically, the probe 2 may be configured without the probe 21 (FIG. 2) and the measurement unit 3 may be configured without the vibration measurement circuit 31 (FIG. 2).

(2) Step S107 may be omitted. As a result, the notification unit 45 may not notify the warning information.

(3) Steps S106 and S110 may be omitted. Thus, until the determination unit 43 determines that the measurement data is valid, the execution unit 46 executes the measurement diagnosis process when it detects that the tip of the probe 2 is pressed against the steam trap. can be

(4) Step S108 may be omitted. As a result, the notification unit 45 may not notify the guide information.

1: Measurement diagnostic device 2: Probe 3: Measurement unit 4: Control unit 41: Diagnosis unit 42: Acquisition unit 43: Judgment unit 44: Output unit 45: Notification unit 46: Execution unit

Claims (6)

A portable measurement diagnostic device for diagnosing a steam trap, comprising:
a measurement unit that outputs measurement data of the steam trap;
a diagnosis unit that generates diagnosis data indicating a diagnosis result of the steam trap by processing the measurement data according to a predetermined measurement diagnosis algorithm;
By inputting the measurement data into a trained model that has performed machine learning on the relationship between the data indicating the past measurement results of the steam trap and the data indicating the past diagnosis results of the steam trap, the an acquisition unit that acquires verification data indicating a diagnosis result of the steam trap;
a determination unit that determines whether the measurement data is appropriate based on a comparison result between the diagnosis result indicated by the diagnosis data and the diagnosis result indicated by the verification data;
an output unit that outputs the diagnostic data when the determination unit determines that the measurement data is valid;
with
The determination unit is
determining that the measurement data is valid when the diagnostic result indicated by the diagnostic data and the diagnostic result indicated by the verification data match,
If the diagnostic result indicated by the diagnostic data and the diagnostic result indicated by the verification data do not match, determining that the measurement data is not valid;
measurement diagnostic equipment. a first reporting unit that reports guidance information to guide re-measurement of the steam trap when the determination unit determines that the measurement data is not valid;
The measurement diagnostic device of claim 1, further comprising: further comprising a probe whose tip is pressed against the steam trap;
Output of the measurement data by the measurement unit and diagnosis data by the diagnosis unit when it is detected that the tip of the probe is pressed against the steam trap after the first notification unit reports the guidance information. an execution unit that executes a measurement diagnosis process that sequentially generates the verification data, acquires the verification data by the acquisition unit, and makes a determination by the determination unit;
3. The measurement diagnostic device of claim 2 , further comprising: The first notification unit, when the determination unit determines that the measurement data is not valid, the history of the determination result by the determination unit is used to determine that the measurement of the steam trap is impossible. When a predetermined unmeasurable condition is satisfied, reporting unmeasurable information indicating that the steam trap cannot be measured;
The measurement diagnostic device according to claim 3 . The unmeasurable condition is set such that the determination unit continuously determines that the measurement data is not valid for a predetermined number of times or more.
The measurement diagnostic device according to claim 4 . a second notification unit that notifies warning information indicating that the measurement of the steam trap has failed when the determination unit determines that the measurement data is not valid;
6. The measurement diagnostic device according to any one of claims 1 to 5 , further comprising:

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