JP2017142124A - Diagnosis assisting device, diagnosis assisting system, diagnosis assisting method, and diagnosis assisting program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a diagnosis assisting device, a diagnosis assisting system, a diagnosis assisting method, and a diagnosis assisting program which assist a diagnosing person to accurately diagnose an installation.SOLUTION: A diagnosis assisting device (2) includes: an adjustment section (21) which adjusts a first signal corresponding to sound and/or vibration of a diagnosed installation (100) on the basis of variable setting, so as to generate a second signal; and an output section (22) for outputting the second signal to a reproducing unit (3). While the output section (22) outputs the second signal, the adjustment section (21) can adjust the first signal.SELECTED DRAWING: Figure 1A

Description

The present invention relates to a diagnostic assistance device, a diagnostic assistance system, a diagnostic assistance method, and a diagnostic assistance program that assist equipment diagnosis by a diagnostician.

  Devices that measure and analyze information such as sound, vibration, and temperature from equipment to determine the presence or absence of abnormalities have been developed. For example, Patent Document 1 discloses an elevator abnormality diagnosis device that detects operating noise of an elevator and performs frequency analysis to diagnose the presence or absence of the abnormality. Also. Patent Document 2 discloses a governor room abnormality detection system that acquires room sound in a governor room and detects an abnormality based on whether or not a specific frequency band exceeds a reference allowable value.

  However, since the state of the equipment varies depending on the individual or changes depending on the operating state, diagnosis by the device is not easy. Therefore, it is still useful for diagnosticians to make a comprehensive diagnosis based on experience based on information from the equipment, and it is used in many sites. In particular, diagnosis based on sound from facilities is frequently used.

  For diagnosis by a diagnostician, it is necessary to discriminate a specific sound indicating an abnormality from the sound from the equipment and identify the presence or absence of the abnormality, and therefore the presence of a skilled diagnostician is indispensable. On the other hand, the number of skilled diagnosticians is decreasing in recent years, and there is a concern that in the future, effective facility diagnosis work will not be possible.

  As an example of diagnosis by a diagnostician, in Patent Document 3, the sound generated during the operation of a rolling bearing is heard by ear, and this sound is compared with an abnormal sound or normal sound recorded on a recording medium to determine whether there is an abnormality. A method for assisting diagnosis of a rolling bearing to be determined is disclosed. Patent Document 4 discloses an abnormal noise portable examination device that regenerates from headphones after removing noise from a signal detected by an acceleration sensor using a high-pass filter that cuts up to 10 kHz.

Japanese Patent Laid-Open No. 9-20477 JP 2011-220748 A JP 2009-168552 A Utility Model No. 3031481

  However, with the method described in Patent Document 3, it is difficult for an inexperienced diagnostician to make an accurate diagnosis because the sound generated during operation of the rolling bearing is heard as it is. The abnormal noise portable examination device of Patent Document 4 only removes noise with a high-pass filter having a fixed cut-off frequency, and it cannot be said that adjustment suitable for abnormality diagnosis is necessarily performed. In none of these cases, the diagnostician can perform equipment diagnosis with high accuracy.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a diagnosis assisting device, a diagnosis assisting system, a diagnosis assisting method, and a diagnosis assisting assisting a diagnostician to accurately perform facility diagnosis. Is to provide a program.

According to one aspect of the present invention, the first signal corresponding to the sound and / or vibration of the facility to be diagnosed is adjusted based on the variable setting, and the adjusting unit that generates the second signal, and the second signal is reproduced. An output unit that outputs to the apparatus, and the output unit outputs the second signal while the adjustment unit can adjust the first signal.
According to this configuration, it is possible to adjust the signal while outputting a signal derived from sound and / or vibration from the facility to be diagnosed.

The adjustment unit may adjust a frequency characteristic of the first signal.
More specifically, the adjustment unit may perform a filtering process on the first signal.
Further, it may be a cutoff frequency and / or an amplification factor in the filtering process.
Thereby, the sound of the specific frequency which contributes to abnormality detection etc. can be emphasized.

The diagnosis auxiliary device may include a storage unit that stores the variable setting.
As a result, by storing the settings, it is possible to accumulate diagnostic know-how and inherit the diagnostic technology.

The diagnosis assisting device may include a storage unit that stores the first signal and / or the second signal.
Thereby, the stored signal can be utilized later.

The diagnostic auxiliary device includes a storage unit that stores one or more past first signals in advance, and the output unit stores the one or more first signals stored in the storage unit and the first real-time signal. Two or more second signals obtained by adjusting two or more of the signals may be switched or simultaneously output.
Thereby, it is possible to easily compare the past signal with the current signal or between the past signals.

The diagnostic auxiliary device includes a storage unit that stores one or more past second signals in advance, and the output unit stores the one or more second signals stored in the storage unit and the second signal in real time. Two or more of the signals may be switched or simultaneously output.
Thereby, it is possible to easily compare the past signal with the current signal or between the past signals.

  According to another aspect of the present invention, a detection device that detects sound and / or vibration of the facility to be diagnosed and generates the corresponding first signal, and the second signal based on the first signal. There is provided a diagnostic assistance system comprising the above-described diagnostic assistance device that outputs a signal and a reproduction device that reproduces the second signal.

It is desirable that the adjusting unit can adjust the first signal while the reproducing device reproduces the second signal.
Thereby, signal adjustment is possible, reproducing | regenerating the signal originating in the sound and / or vibration from a diagnostic object facility.

The diagnosis object facility and the playback device may be arranged in separate rooms.
Thereby, even if there is a facility that makes a loud sound in the vicinity of the facility to be diagnosed, the influence can be suppressed.

  According to one aspect of the present invention, a step of detecting sound and / or vibration of the facility to be diagnosed to generate a corresponding first signal, adjusting the first signal based on a variable setting, A step of generating two signals, a step of outputting the second signal to a reproduction device, and a step of reproducing the second signal from the reproduction device, wherein the reproduction device performs reproduction while the reproduction device performs reproduction. A diagnostic assistance method for adjusting the signal is provided.

According to another aspect of the present invention, the computer adjusts the first signal corresponding to the sound and / or vibration of the diagnosis target equipment based on the variable setting, and generates the second signal; A diagnostic assistance program is provided that functions as an output unit that outputs a second signal to a playback device, and the adjustment unit can adjust the first signal while the output unit outputs the second signal.

  Since the signal adjustment is possible while outputting the signal derived from the sound and / or vibration from the diagnosis target facility, the diagnostician can diagnose the diagnosis target facility with high accuracy.

1 is a block diagram showing a schematic configuration of a diagnostic assistance system according to a first embodiment. The flowchart which shows the procedure of the diagnosis using the diagnosis assistance system of FIG. 1A. The figure which shows one specific example of a diagnostic assistance system. The figure which shows another specific example of a diagnostic assistance system. The figure which shows the usage example of a diagnostic assistance system. The figure which shows the usage example of FIG. 4 more concretely. The figure which shows the adjustment by the adjustment part 21 typically. The block diagram which shows schematic structure of the diagnostic assistance system which concerns on 2nd Embodiment. The block diagram which shows schematic structure of the diagnostic assistance system which concerns on 3rd Embodiment. The figure explaining memory | storage of a signal. The figure explaining memory | storage of a signal. The figure explaining memory | storage of a signal. The figure explaining adjustment and output of the memorized signal. The figure explaining adjustment and output of the memorized signal. The block diagram which shows schematic structure of the diagnostic assistance system which concerns on 4th Embodiment. The block diagram which shows schematic structure of the diagnostic assistance system which concerns on the modification of FIG. The block diagram which shows schematic structure of the diagnostic assistance system which concerns on 5th Embodiment. The block diagram which shows schematic structure of the diagnostic assistance system which concerns on the modification of FIG.

  Embodiments according to the present invention will be specifically described below with reference to the drawings.

(First embodiment)
FIG. 1A is a block diagram illustrating a schematic configuration of a diagnostic assistance system according to the first embodiment. This diagnostic auxiliary system is for diagnosing the diagnosis target equipment 100 and includes a detection device 1, a diagnostic auxiliary device 2, and a playback device 3. The detection device 1 detects sound and / or vibration from the diagnosis target facility 100 and converts it into a corresponding electrical signal. The diagnostic auxiliary device 2 adjusts the signal generated by the detection device 1 to generate a new signal and outputs it. The reproduction device 3 reproduces the signal output from the diagnostic auxiliary device 2.

  FIG. 1B is a flowchart showing a procedure of diagnosis using the diagnosis auxiliary system of FIG. 1A. First, the detection device 1 detects sound and / or vibration from the diagnosis target facility 100 (step S1). Next, while the diagnostic auxiliary device 2 adjusts the electrical signal from the detection device 1 and outputs it to the reproduction device 3, the reproduction device 3 reproduces the signal in parallel (step S2). With the above assistance, that is, based on the reproduced signal, the diagnostician performs diagnosis such as the presence / absence of abnormality and the type determination of abnormality (step S3).

  FIG. 2 is a diagram illustrating a specific example of a diagnostic assistance system. In this example, the detection device 1 is a vibration sensor 1 a that detects vibration of the diagnosis target facility 100. The playback device 3 is a speaker 3a (FIG. 2A) or a headphone 3b (FIG. 2B). In this case, the diagnostic auxiliary device 2 adjusts the electrical signal corresponding to the vibration and outputs an audio signal. When listening to sound in the vicinity of the diagnosis target equipment 100 or when there is another equipment that produces a loud sound in the vicinity of the diagnosis target equipment 100, it is desirable to use the headphones 3b that are not easily influenced by surrounding sounds.

  FIG. 3 is a diagram showing another specific example of the diagnostic assistance system. In this example, the detection apparatus 1 is a microphone 1b that detects the sound of the diagnosis target equipment 100. The playback device 3 is a speaker 3a (FIG. 3A) or a headphone 3b (FIG. 3B). In this case, the diagnostic auxiliary device 2 adjusts the electrical signal corresponding to the sound and outputs a sound signal. When listening to sound in the vicinity of the diagnosis target equipment 100 or when there is another equipment that produces a loud sound in the vicinity of the diagnosis target equipment 100, it is desirable to use the headphones 3b that are not easily influenced by surrounding sounds. When the speaker 3a is used, howling occurs when the microphone 1b detects the reproduced sound from the speaker 3a. Therefore, the speaker 3a should not be sufficiently separated from the microphone 1b or the volume of the speaker 3a should not be increased too much. desirable.

  FIG. 4 is a diagram illustrating a usage example of the diagnostic assistance system. Although the entire diagnosis assisting system may be in the vicinity of the diagnosis target facility 100, as shown in the figure, only the detection device 1 is disposed in the vicinity of the diagnosis target facility 100 and is separate from the machine room in which the diagnosis target facility 100 is located. It is desirable to arrange the diagnostic auxiliary device 2 and the reproduction device 3 in the operation room. Alternatively, the detection device 1 and the diagnostic auxiliary device 2 may be arranged in the machine room, and only the reproduction device 3 may be arranged in the operation room. Thereby, even when there is another facility that produces a loud sound in the vicinity of the diagnosis target facility 100, it is not affected and no howling occurs.

  FIG. 5 is a diagram showing the usage example of FIG. 4 more specifically. As illustrated, the diagnostic auxiliary device 2 may be incorporated in the console 4. As a result, the diagnostician can diagnose the diagnosis target equipment 100 while performing normal machine operation work, and can always monitor the diagnosis target equipment 100. The diagnostic auxiliary device 2 may be carried as a mobile device in addition to being incorporated in the console 4.

  Returning to FIG. 1A, the diagnostic auxiliary device 2 will be described. The diagnostic auxiliary device 2 includes an adjustment unit 21 and an output unit 22. The diagnosis assisting device 2 is a computer, and the adjustment unit 21 and the output unit 22 may be realized by executing a predetermined diagnosis assisting program.

  The adjustment unit 21 adjusts the electrical signal from the detection device 1 based on the variable setting, and generates an adjusted signal. The adjustment is typically adjustment of a frequency characteristic in an electric signal. For example, a diagnostician sets a specific frequency that contributes to detection of an abnormality. Based on this, the adjustment unit 21 may amplify a component in a specific frequency band or attenuate a component in another frequency band. This makes it easier for the diagnostician to hear the sound that contributes to the detection of abnormality. If the frequency or frequency band of the sound to be heard differs according to the abnormality to be detected, the diagnostician may set an appropriate frequency.

  FIG. 6 is a diagram schematically illustrating the adjustment by the adjusting unit 21. FIG. 6A shows an electrical signal input to the adjustment unit 21, and the diagnostician sets the frequencies fc 1 and fc 2 in the adjustment unit 21. In this case, as shown in FIG. 6B, the adjustment unit 21 may pass the components of the frequency bands fc1 to fc2 and sufficiently attenuate the other components (in other words, the frequencies fc1 and fc2 may be reduced). Performs band-pass filtering with a cut-off frequency). Alternatively, as illustrated in FIG. 6C, the adjustment unit 21 may partially amplify only the components of the frequency bands fc1 to fc2. Such adjustment makes it easier to hear the sound in the frequency band fc1 to fc2.

  As described above, the adjustment unit 21 may perform band-pass filter processing, or may perform other low-pass filter processing and high-pass filter processing. Since the frequency band to be listened to may vary depending on the diagnosis target equipment 100 and the type of abnormality, it is preferable to make the settable cutoff frequency variable. In addition, the adjustment unit 21 may amplify or attenuate a component of the set frequency band. In this case, it is desirable that the amplification factor can be variably set.

  The adjustment unit 21 is equipped with a function equivalent to a graphic equalizer that combines a plurality of bandpass filters and amplifying means for a specific frequency band, and a parametric equalizer that can adjust the bandwidth or the center frequency of the band, so that components in a plurality of frequency bands An amplified signal may be generated.

  The signal adjusted as described above is amplified by the output unit 22 as necessary, and then output to the playback device 3. Then, for example, a signal adjusted as sound is reproduced by the reproduction device 3.

  Here, while the output unit 22 outputs the adjusted signal to the reproduction device 3 (that is, while the reproduction device 3 reproduces the adjusted signal), the adjustment unit 21 adjusts the electric signal. In other words, the diagnostician can make adjustments while listening to the sound from the playback device 3. Therefore, various adjustments can be attempted while listening to the adjusted sound, and a setting that is easier to diagnose can be found. Thereby, for example, a state in which a skilled diagnostician can easily make a diagnosis can be set, and by using the setting, a diagnosis can be performed accurately even if the user is not a skilled diagnostician. In addition, by making adjustments while listening to sound, an inexperienced diagnostician can learn the diagnostic technique while confirming the difference in sound depending on the setting.

  As described above, in the first embodiment, it is possible to adjust the frequency characteristics and the like while listening to the detected sound or vibration and reproducing the sound reproduced from the reproducing apparatus 3. Therefore, the presence / absence or type of abnormality of the diagnosis target facility 100 can be determined based on the sound from the playback device 3 even if it is not a skilled engineer. In addition, since a sound representing an abnormality can be identified and emphasized by frequency, individual differences among diagnosticians can be suppressed. Furthermore, if the adjustment to the adjustment unit 21 is constant, the sound can be heard repeatedly by the same adjustment, and can be applied when diagnosing another facility.

(Second Embodiment)
In the second embodiment to be described next, the setting for the adjustment unit 21 of the diagnostic assistance system can be stored. Hereinafter, a description will be given focusing on differences from the first embodiment.

  FIG. 7 is a block diagram showing a schematic configuration of a diagnostic assistance system according to the second embodiment. The diagnosis assisting system further includes a storage unit 23. Although FIG. 7 shows an example in which the diagnostic auxiliary device 2 ′ includes the storage unit 23, the storage unit 23 may be a device separate from the diagnostic auxiliary device 2 ′. The storage unit 23 stores settings (frequency, amplification factor, etc.) for the adjustment unit 21.

  The storage unit 23 may store settings for each diagnosis target facility. Thereby, the setting for a certain diagnosis target facility can be applied to another diagnosis target facility of the same type. In addition, the setting in one diagnostic auxiliary device 2 'can be transferred to another diagnostic auxiliary device 2'.

  In addition, settings for each type of abnormality to be detected may be stored. In that case, a plurality of settings for emphasizing the components of the frequency band that characterizes the abnormality may be preset, and one of them may be selectively switched. Thereby, a plurality of abnormalities can be easily diagnosed.

  Alternatively, an adjustment may be stored so that a sound heard with a listening stick familiar to an experienced diagnostician can be simulated. Thereby, diagnosis can be performed with the same sense as using a listening stick.

  Thus, in the second embodiment, the setting for the adjustment unit 21 is stored. Diagnosis know-how can be accumulated by setting and storing settings by a skilled diagnostician, and by using settings stored by other diagnosticians, it is possible to pass on the diagnostic technique of a skilled diagnostician.

(Third embodiment)
In the third embodiment described below, signals before and / or after adjustment can be stored. Hereinafter, the difference from the first and second embodiments will be mainly described.

  FIG. 8 is a block diagram illustrating a schematic configuration of a diagnostic assistance system according to the third embodiment. The storage unit 23 of the present embodiment stores a signal before and / or after adjustment. Although FIG. 8 illustrates an example in which the diagnostic auxiliary device 2 ″ includes the storage unit 23, the storage unit 23 may be a separate device from the diagnostic auxiliary device 2 ″.

  FIG. 9A to FIG. 9C are diagrams for explaining signal storage and depict only the signal flow in each case. The storage unit 23 stores only signals before adjustment (FIG. 9A), stores only signals after adjustment (FIG. 9B), and stores both signals before and after adjustment (FIG. 9C). ). It may be possible to set which signal the storage unit 23 stores. Note that the storage unit 23 may be capable of storing only one of the signals before and after adjustment.

  FIG. 10A and FIG. 10B are diagrams for explaining adjustment and output of a stored signal, and depict only a signal flow in each case. The output unit 22 outputs the adjusted signal stored in the storage unit 23 (FIG. 10A), the adjustment unit 21 adjusts the signal before adjustment stored in the storage unit 23, and the output unit 22 outputs the adjusted signal. (FIG. 10B).

  The signal before adjustment corresponds to vibration or sound from the diagnosis target equipment 100. Therefore, by storing the signal before adjustment, it can be used for another type of abnormality determination by performing another adjustment later (FIG. 10B). That is, the normal adjustment and another adjustment different from the normal adjustment can be performed while shifting the time.

It is also useful to store the adjusted signal and reproduce it later (FIG. 10A). For example, by storing an adjusted signal when an abnormality occurs, it is possible to reproduce a sound that facilitates abnormality diagnosis, that is, a sound in which a component in the frequency band that characterizes the abnormality is emphasized. Alternatively, by storing the adjusted signal when no abnormality has occurred, the normal sound can be reproduced at any time.
Note that, similarly to the second embodiment, the storage unit 23 may further store settings for the adjustment unit 21.

(Fourth embodiment)
In the fourth embodiment to be described next, the stored signal and the real-time signal from the detection device 1 are switched and reproduced so that they can be compared. Hereinafter, the difference from the third embodiment will be mainly described.

  FIG. 11 is a block diagram illustrating a schematic configuration of a diagnostic assistance system according to the fourth embodiment. The storage part 23 of FIG. 11 has memorize | stored beforehand the signal after adjusting the electrical signal originating in the sound and / or vibration of the past diagnosis object equipment 100. FIG.

  Further, the diagnostic auxiliary device 2 ″ ″ includes a switching unit 24 provided at the front stage of the output unit 22. A signal after adjustment (hereinafter simply referred to as “stored signal”) stored in the storage unit 23 is input to the switching unit 24. In addition, a signal after adjusting an electrical signal derived from the sound and / or vibration of the current diagnosis object facility 100 (hereinafter simply referred to as “real-time signal”) is also input to the switching unit 24.

  The switching unit 24 selects one of the stored signal and the real-time signal and supplies the selected signal to the output unit 22. Thereby, one signal is selectively reproduced by the reproducing apparatus 3. For example, the switching unit 24 may perform switching automatically at regular intervals, or may perform switching based on manual setting by a diagnostician.

  FIG. 12 is a block diagram showing a schematic configuration of a diagnostic assistance system according to a modification of FIG. The storage unit 23 in FIG. 12 stores in advance an electrical signal (before adjustment) derived from the sound and / or vibration of the past equipment 100 to be diagnosed.

  In addition, a switching unit 24 is provided in front of the adjustment unit 21. A signal before adjustment stored in the storage unit 23 (hereinafter simply “stored signal”) is input to the switching unit 24. In addition, an electrical signal (before adjustment) (hereinafter simply referred to as “real-time signal”) derived from the sound and / or vibration of the current diagnosis object facility 100 is also input to the switching unit 24.

  The switching unit 24 selects one of the stored signal and the real-time signal and supplies the selected signal to the adjustment unit 21. As a result, one of the signals is selectively adjusted by the adjustment unit 21 and reproduced by the reproduction device 3. For example, the switching unit 24 may perform switching automatically at regular intervals, or may perform switching based on manual setting by a diagnostician.

  11 and 12, as a result, the output unit 22 outputs one of the signals stored in the storage unit 23 and the real-time signal from the detection device 1 while switching.

  In the present embodiment, for example, a normal signal (before or after adjustment) is stored in the storage unit 23, and the two are compared by listening while switching between a normal sound and a real-time sound at the time of diagnosis. And the accuracy of diagnosis can be improved. Alternatively, a signal at the time of abnormality (before or after adjustment) may be stored in the storage unit 23 so that the sound at the time of abnormality and a real-time sound at the time of diagnosis can be switched and heard. Further, regardless of whether it is normal or abnormal, a past signal may be stored so that the user can listen to the sound while switching between the past sound and the current sound.

  In addition, when there are a plurality of the same type of equipment, a signal derived from a certain equipment (before or after adjustment) is stored in the storage unit 23, and the sound and the sound at the time of diagnosis of other equipment are switched. By listening, both can be compared and the accuracy of diagnosis can be improved.

  In the fourth embodiment, an example is shown in which one signal is supplied from the storage unit 23 to the switching unit 24. However, two or more signals (for example, a signal at the time of an abnormality and other abnormalities are stored in the storage unit 23). Time signal) may be stored, and the switching unit 24 may select one signal from a total of three or more signals. The two or more signals may be a signal at a certain point in the past and a signal at a certain point in the past (past). That is, in the present embodiment, it is possible to compare a past signal with a real-time signal, and also to compare past signals.

(Fifth embodiment)
In the fourth embodiment described above, two signals are switched and reproduced. On the other hand, in the fifth embodiment described below, a stored signal and a real-time signal from the detection apparatus 1 are reproduced simultaneously so that they can be compared. Hereinafter, the difference from the fourth embodiment will be mainly described.

  FIG. 13 is a block diagram illustrating a schematic configuration of a diagnostic assistance system according to the fifth embodiment, and corresponds to FIG. 11. That is, the memory | storage part 23 of FIG. 13 has memorize | stored in advance the signal after adjusting the electrical signal derived from the sound and / or vibration of the past diagnosis object equipment 100. FIG.

  Further, the output unit 22 of the diagnostic auxiliary device 2 ″ ″ receives the adjusted signal stored in the storage unit 23 (hereinafter simply referred to as “stored signal”), the sound of the current diagnosis target equipment 100, and And / or a signal after adjusting an electrical signal derived from vibration (hereinafter, simply referred to as “real-time signal”).

  Further, the diagnostic assistance system includes two playback devices 31 and 32. Then, the playback device 31 receives the stored signal output from the output unit 22 and plays it back. On the other hand, the playback device 32 receives a real-time signal output from the output unit 22 and plays it back. Thereby, both signals are reproduced simultaneously.

  FIG. 14 is a block diagram illustrating a schematic configuration of a diagnostic assistance system according to the modification of FIG. 13, and corresponds to FIG. 12. That is, the memory | storage part 23 of FIG. 14 has memorize | stored beforehand the electric signal (before adjustment) derived from the sound and / or vibration of the past diagnosis object equipment 100. FIG.

  Further, the adjustment unit 21 of the diagnostic auxiliary device 2 ″ ″ stores the signal before adjustment stored in the storage unit 23 (hereinafter simply referred to as “stored signal”), the current sound of the facility 100 to be diagnosed, and An electric signal (hereinafter simply referred to as “real-time signal”) derived from vibration is adjusted. The output unit 22 outputs both adjusted signals. Then, the playback device 31 receives the signal adjusted from the stored signal output from the output unit 22 and plays it back. On the other hand, the playback device 32 receives a signal obtained by adjusting a real-time signal output from the output unit 22 and plays it back. Thereby, both signals are reproduced simultaneously.

13 and 14, as a result, the output unit 22 outputs both the signal stored in the storage unit 23 and the real-time signal from the detection device 1 at the same time.
Since two signals can be reproduced simultaneously and compared, the accuracy of diagnosis is improved as in the fourth embodiment.

  In the fifth embodiment, an example in which one signal is stored in the storage unit 23 has been described. However, two or more signals (for example, a signal at the time of an abnormality and a signal at the time of another abnormality) are stored in the storage unit 23. You may memorize | store and provide a total of 3 or more reproducing | regenerating apparatuses, and you may enable it to reproduce 3 or more sounds simultaneously. The two or more signals may be a signal at a certain point in the past and a signal at a certain point in the past (past). That is, in the present embodiment, it is possible to compare a past signal with a real-time signal, and also to compare past signals.

  The embodiment described above is described for the purpose of enabling the person having ordinary knowledge in the technical field to which the present invention belongs to implement the present invention. Various modifications of the above embodiment can be naturally made by those skilled in the art, and the technical idea of the present invention can be applied to other embodiments. Therefore, the present invention should not be limited to the described embodiments, but should be the widest scope according to the technical idea defined by the claims.

DESCRIPTION OF SYMBOLS 1 Detection apparatus 1a Vibration sensor 1b Microphone 2, 2 ', 2'',2''', 2 '''' Diagnosis auxiliary device 21 Adjustment part 22 Output part 23 Storage part 24 Switching part 3, 31, 32 Playback apparatus 3a Speaker 3b Headphone 100 Equipment to be diagnosed

Claims (13)

An adjustment unit that adjusts the first signal corresponding to the sound and / or vibration of the diagnosis target equipment based on the variable setting, and generates a second signal;
An output unit for outputting the second signal to a playback device;
The diagnosis assisting apparatus, wherein the adjustment unit can adjust the first signal while the output unit outputs the second signal.   The diagnosis assisting apparatus according to claim 1, wherein the adjustment unit adjusts a frequency characteristic of the first signal.   The diagnosis assisting apparatus according to claim 1, wherein the adjustment unit performs a filtering process on the first signal.   The diagnosis assisting apparatus according to claim 3, wherein the variable setting is a cutoff frequency and / or an amplification factor in the filter processing.   The diagnostic assistance apparatus according to claim 1, further comprising a storage unit that stores the variable setting.   The diagnostic assistance apparatus according to any one of claims 1 to 5, further comprising a storage unit that stores the first signal and / or the second signal. A storage unit that pre-stores one or more past first signals;
The output unit switches between two or more second signals obtained by adjusting two or more of the one or more first signals and the real-time first signal stored in the storage unit, Or the diagnostic auxiliary device in any one of Claims 1 thru | or 5 output simultaneously. A storage unit that stores one or more past second signals in advance;
6. The output unit according to claim 1, wherein the output unit outputs two or more of the one or more second signals and the real-time second signal stored in the storage unit while switching or simultaneously. The diagnostic auxiliary device according to 1. A detection device that detects sound and / or vibration of the facility to be diagnosed and generates the corresponding first signal;
The diagnostic auxiliary device according to any one of claims 1 to 8, wherein the second signal is output based on the first signal.
A diagnostic assistance system comprising: a reproduction device that reproduces the second signal.   The diagnostic assistance system according to claim 9, wherein the adjustment unit can adjust the first signal while the reproduction device reproduces the second signal.   The diagnosis assistance system according to claim 9 or 10, wherein the diagnosis target facility and the reproduction device are arranged in separate rooms. Detecting sound and / or vibration of the facility to be diagnosed and generating a corresponding first signal;
Adjusting the first signal based on a variable setting to generate a second signal;
Outputting the second signal to a playback device;
Replaying the second signal from the replay device,
A diagnostic assistance method in which the first signal is adjusted while the reproduction device performs reproduction. Computer
An adjustment unit that adjusts the first signal corresponding to the sound and / or vibration of the diagnosis target equipment based on the variable setting, and generates a second signal;
Functioning as an output unit that outputs the second signal to a playback device;
A diagnostic assistance program in which the adjustment unit can adjust the first signal while the output unit outputs the second signal.