Method for setting setting value of vibration waveform detection device, computer for executing the setting method, and setting value setting program for allowing the computer to function

Abstract

To provide a setting value setting method of a vibration waveform inspection device for detecting a vibration waveform signal generated from deformation and destruction generated in an inspection object.SOLUTION: A setting value setting method of a vibration waveform inspection device includes the steps of: detecting vibration generated in an inspection object; and detecting an abnormal vibration waveform signal by removing a disturbance signal that obstructs detection of an abnormal vibration signal from a vibration waveform signal detected at the time of normal machining or assembly of the inspection object. It also includes the steps of: displaying a setting screen following a setting operation order of required setting values for a setting; adjusting the setting value by repeating a process for acquiring the vibration waveform signal from the vibration waveform inspection device; and setting a setting value of another setting item from the vibration waveform signal. From the above configuration, even an inexperienced worker can perform setting operation easily since the worker may set required setting values following successively displayed setting screens when determining whether the inspection object is appropriate or may simply operate an acquisition button.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a method for setting settings for a vibration waveform detection device that detects vibration waveform signals resulting from deformation or destruction that occurs in a material such as ceramics when manufacturing parts from the material or when processing or assembling parts made of the same material, and detects these abnormalities, as well as a computer that implements the setting method and a program that causes the computer to function. [Background technology]

[0002] Conventionally, as devices for detecting an abnormality in an object to be inspected by detecting a vibration waveform signal of a sound or vibration generated from the object to be inspected, an abnormality detection device described in Patent Document 1 and an AE inspection device that detects high-frequency vibrations generated by deformation or destruction of the object to be inspected during processing or assembly using an acoustic emission (hereinafter referred to as an AE sensor) have been developed. In particular, the AE inspection device disclosed in Non-Patent Document 1 can reliably detect vibrations generated by even minute deformation or destruction of the object to be inspected, and is therefore widely used when the object to be inspected is a member made of a highly brittle material such as ceramics.

[0003] The AE inspection device includes an AE sensor that detects vibration waveform signals of vibrations caused by abnormalities in the object to be inspected, an amplifier that amplifies the vibration waveform signals detected by the AE sensor to a waveform signal at a level that can be observed because the amplitude of the vibration waveform signal is small (hereinafter referred to as the observed waveform signal), and a low-pass filter that removes high-frequency components that exceed the frequency range of the AE sensor due to disturbances from the observed waveform signal. Since the observed waveform signal after filtering contains mechanical vibrations of 10 KHz or less and abnormal vibrations of several MHz or less that are within the detection range of the AE sensor, the AE inspection device includes an amplifier that amplifies the signal to an optimal level in consideration of the judgment process after A / D conversion, and an A / D converter that converts the observed waveform signal amplified after filtering into a digital waveform signal. Furthermore, the AE inspection device includes a digital filter that has a filter coefficient for subtracting these signals from the A / D converted digital waveform signal as a normal vibration removal filter. Therefore, when the observed waveform signal detected by the AE sensor passes through the normal vibration removal filter, if the observed waveform signal contains an abnormal vibration waveform signal due to deformation or destruction of the object to be inspected, the abnormal vibration waveform signal can be detected together with a disturbance signal having a high-frequency component of the same order. Furthermore, in order to more accurately detect abnormal vibration waveform signals, this AE inspection device is configured to set a lower limit for the number of sampling times that continuously exceed the amplitude threshold value of the abnormality judgment condition, and to detect only abnormal vibration waveform signals that occur consecutively for a certain number of sampling times due to deformation or destruction of the object being inspected. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2006-47225 A [Non-patent literature]

[0005] [Non-Patent Document 1] Tatsuya Shikata, “Nitto Technical Report No.73”, Nitto Seiko Co., Ltd., July 1, 2013, p.23-26 Summary of the Invention [Problem to be solved by the invention]

[0006] In the above-mentioned AE inspection device, before starting the inspection, it is necessary to detect in advance normal vibration waveform signals including low and high frequencies that are generated while the object to be inspected is normally processed or assembled by a machine such as a processing machine, and create a normal vibration removal filter consisting of a digital filter that subtracts the vibration waveform signal from this normal vibration waveform signal. At this time, although the normal vibration waveform signal is detected by the AE sensor, since the amplitude of the normal vibration waveform signal is small, it is necessary to adjust the gain of the amplifier so that this normal vibration waveform signal becomes a waveform signal that can be observed with the naked eye, adjust the gain of the amplifier that amplifies the digital waveform signal after A / D conversion, and adjust the amplitude threshold value of the abnormality judgment condition and the lower limit of the number of samplings at which the digital waveform signal exceeds the threshold value consecutively, and set these settings.

[0007] For these settings, a main setting screen 111 on which various setting values ​​shown in FIG. 33 can be input, and a terminal screen 112, a detection condition setting screen 113, a filter coefficient screen 114, and a file operation screen 115 (see FIG. 34, FIG. 35, FIG. 36, and FIG. 37, respectively) are provided, which can be arbitrarily selected and displayed from the main setting screen. Therefore, when setting various setting values ​​in the main setting screen, the operator must set basic items such as the number of channels corresponding to the number of detection sensors CH1 and CH2, and the sample rate, and also perform various settings so that the vibration waveform signal after A / D conversion can be obtained. Moreover, in order to adjust the gain of the amplifier that creates the observed waveform signal and the gain of the amplifier that amplifies the digital waveform signal after A / D conversion, the operator must sequentially import normal vibration waveform signals and abnormal vibration waveform signals from the AE inspection device and display them on the terminal screen 112. After that, the operator must select the necessary vibration waveform signal from the terminal screen 112, display it, and then visually check it, repeatedly adjusting the gain of the amplifier and the like to the appropriate setting value.

[0008] Similarly, when creating a normal vibration removal filter, a normal vibration waveform signal must be acquired and selected, this normal vibration waveform signal must be displayed on filter coefficient screen 113, a range with a large amplitude must be visually selected, a filter coefficient for that range must be calculated, and then a filter having that filter coefficient must be created on main setting screen 111. After that, the operator must repeat the process of acquiring an abnormal vibration waveform signal after filtering, and setting an appropriate threshold value for the amplitude of the abnormality determination condition from the abnormal vibration waveform signal, and an appropriate lower limit for the number of sampling times that the threshold value is continuously exceeded.

[0009] Furthermore, when using existing setting values ​​or existing vibration waveform signals, this information must be called up from the file operation screen 115, and necessary information such as the existing setting values, normal vibration / abnormal vibration waveform signals, and filter coefficients must be displayed on the personal computer, and these must be input into the specified positions on the main setting screen 111.

[0010] These operations require frequent switching of setting screens, as well as understanding of the setting procedures and the settings on each setting screen. Therefore, if the operator is unfamiliar with these setting operations, the setting operations will take a lot of time, and there is a demand for a setting value setting method that allows even an unskilled operator to easily perform this type of setting operation. [Means for solving the problem]

[0011] The present invention has been invented in consideration of the above-mentioned demand, and is a setting value setting method for a vibration waveform inspection device having a detection sensor that detects vibrations occurring around or on the object to be inspected, and an amplifier unit that amplifies the vibration waveform signal detected by the detection sensor, and is configured to create a digital filter that subtracts a portion of the vibration waveform signal detected when the object to be inspected is processed or assembled normally, and to detect an abnormal vibration waveform signal by removing disturbance signals that hinder the detection of abnormal vibration waveforms using the digital filter, the method comprising the steps of: displaying a setting screen in accordance with a setting work order for the setting values ​​that need to be set, setting predetermined setting values ​​for setting items on the setting screen, and, when the setting screen has an acquire button for acquiring a vibration waveform signal, sending a setting command including the setting value and the type of inspection signal to the vibration waveform inspection device, and repeating the process of acquiring a vibration waveform signal from the vibration waveform inspection device to adjust the setting value or set a setting value for another setting item from the vibration waveform signal.

[0012] According to the above-mentioned configuration, even if there are many setting values ​​that need to be set before starting the inspection, the setting screen is displayed in the order in which the setting values ​​are set. Therefore, even an inexperienced operator who does not understand the setting procedure for the setting values ​​or the settings on the setting screen can easily perform the setting work on each setting screen without losing time.

[0013] The setting screens displayed in accordance with the setting work order of the setting values ​​required for the settings of the present invention are characterized by comprising a basic setting screen for setting the number of detection sensors and the sample rate detected by the detection sensors, a gain setting screen for acquiring maximum amplitude when no vibration is present, which sets the gain of the amplifier section for amplifying the vibration-free waveform signal acquired from vibrations occurring around the object to be inspected while the machinery related to the processing or assembly of the object to be inspected is stopped, and the maximum amplitude acquired from the vibration-free waveform signal, a gain setting screen for acquiring maximum amplitude of normal / abnormal vibration waveform signal, which sets the maximum amplitude of the normal vibration waveform signal acquired when the object to be inspected is processed or assembled normally, or the abnormal vibration waveform signal acquired when the object to be inspected is processed or assembled abnormally, a gain setting screen for gain adjustment, which sets the gain for adjusting the maximum amplitude of the vibration waveform signal, a filter coefficient creation screen for creating a normal vibration removal filter that subtracts a portion of the normal vibration waveform signal from the normal vibration waveform signal, and a detection condition setting screen for setting the amplitude threshold of the abnormality determination condition and the lower limit of the number of consecutive times the threshold is exceeded from the abnormal vibration waveform signal.

[0014] With this configuration, the operator can easily and without loss of time perform the following tasks: setting the gain to adjust the maximum amplitude of the non-vibration waveform signal, the normal vibration waveform signal, and the abnormal vibration waveform signal; creating a normal vibration removal filter that subtracts a portion of the normal vibration waveform signal from the normal vibration waveform signal; and setting the amplitude threshold value for the abnormality determination condition from the abnormal vibration waveform signal and the lower limit of the consecutive number of times that the threshold is exceeded, even if the operator does not understand the contents of each setting screen.

[0015] It is desirable that each of the setting screens according to the present invention display an indication of the setting values ​​or a procedure for setting the setting values ​​so that an operator can easily perform the setting work without losing time even if he or she does not understand the setting contents of each screen.

[0016] The setting item on the gain setting screen for acquiring maximum amplitude when no vibration is present according to the present invention is the gain of the amplifier, the gain setting screen has an acquisition button for outputting a non-vibration waveform acquisition setting command, and is preferably configured to transmit a non-vibration waveform acquisition setting having the gain, the sample rate and the number of sensors set on the basic setting screen, and an A / D converted signal as the type of inspection signal, to a vibration waveform inspection device, and to acquire a non-vibration waveform signal from the vibration waveform inspection device, thereby adjusting the gain. With this configuration, an operator can transmit a setting value including a gain required for acquiring a non-vibration waveform signal to the vibration waveform inspection device and acquire a non-vibration waveform signal from the vibration waveform inspection device simply by operating the acquisition button, and by repeating this process, the gain can be set so as to obtain an optimal non-vibration waveform signal.

[0017] The gain setting screen for obtaining maximum amplitude when no vibration according to the present invention is preferably configured to have a display surface capable of displaying a non-vibration waveform signal, to obtain a predetermined number of non-vibration waveform signals by a non-vibration waveform acquisition setting command, and to separately display a file selection screen displaying the file names of these non-vibration waveform signals together with their respective maximum amplitudes, and to display a non-vibration waveform signal selected from this file selection screen on the display surface, and to set its maximum amplitude from the non-vibration waveform signal. With this configuration, the operator performing the setting work does not need to provide a display screen for the non-vibration waveform signal separately from the gain setting screen for obtaining maximum amplitude when no vibration, and therefore does not need to repeatedly switch and display the display screen from the gain setting screen for obtaining maximum amplitude when no vibration, and can set the gain on the gain setting screen for obtaining maximum amplitude when no vibration without troublesome work.

[0018] The maximum amplitude acquisition gain setting screen for normal / abnormal vibration waveform signals according to the present invention is preferably configured to have a normal vibration acquisition start button for outputting a normal vibration waveform acquisition setting command and a display screen for a normal vibration waveform signal or both the normal vibration waveform signal and the abnormal vibration waveform signal, and to transmit a vibration waveform acquisition setting command in which the type of inspection signal is an A / D converted signal to a vibration waveform inspection device, and when the normal vibration waveform signal or the normal vibration waveform signal and the abnormal vibration waveform signal are acquired from the vibration waveform inspection device, the normal vibration waveform signal or the normal vibration waveform signal and the abnormal vibration waveform signal are displayed on the display screen. With this configuration, the maximum amplitude acquisition gain setting screen for normal / abnormal vibration waveform signals does not need to have a separate display screen for displaying these vibration waveform signals, and therefore there is no need to switch to the display screen, and it is possible to set an optimal threshold value for acquiring the normal vibration waveform signal or the normal vibration waveform signal and the abnormal vibration waveform signal on the maximum amplitude acquisition gain setting screen without any troublesome work.

[0019] The filter coefficient creation screen for filter creation according to the present invention is preferably configured to have a display surface for displaying the normal vibration waveform signal, the filter characteristics, and the filter output waveform signal, respectively. This eliminates the need to provide a display screen for displaying the normal vibration waveform signal, the filter characteristics, and the filter output separately from the filter coefficient creation screen for filter creation, and therefore eliminates the need to switch to that display screen, making it possible to obtain the normal vibration waveform signal, the filter characteristics, and the filter output by creating the filter coefficient for filter creation without any troublesome work.

[0020] The setting items on the filter coefficient creation screen for creating a filter according to the present invention are the gain for normal waveform acquisition and the type of filter, and the creation screen preferably has a normal waveform acquisition start button that outputs a normal vibration waveform acquisition setting command, and is configured to transmit a normal vibration waveform acquisition setting command having the gain of the screen and an A / D converted signal as the type of the inspection signal to a vibration waveform inspection device, adjust the gain by repeating the process of acquiring a normal vibration waveform signal from the vibration waveform inspection device, and display the normal vibration waveform signal on the display screen. With this configuration, an operator can simply operate the normal waveform acquisition start button to transmit a normal vibration waveform acquisition setting command having the gain required for acquiring a normal vibration waveform signal and having the inspection signal be an A / D converted signal to the vibration waveform inspection device, acquire a normal vibration waveform signal from the vibration waveform inspection device, and adjust the gain so as to obtain a normal vibration waveform signal optimal for filter creation.

[0021] The filter coefficient creation screen for filter creation according to the present invention is desirably configured to display two cursor lines relating to the filter creation range on the normal vibration waveform signal displayed on the display surface and to allow the position of the cursor lines to be arbitrarily set, so that an operator can visually set a range in which to remove part of the normal vibration waveform signal from the normal vibration waveform signal and create filter coefficients from the normal vibration waveform signal within that range.

[0022] The setting items of the filter coefficient creation screen for filter creation according to the present invention are the data position and data size or cutoff frequency of the filter creation, and the creation screen has a filter creation button for creating a filter, and the creation button is preferably configured to set either an inverse filter having a filter coefficient that subtracts a portion determined by the data position and data size from the normal vibration waveform signal, or a low-pass filter or a high-pass filter having a predetermined cutoff frequency together with the inverse filter. With this configuration, even if the operator does not understand the setting contents of the filter coefficient creation screen for filter creation, the operator can create an inverse filter having a filter coefficient that subtracts a portion of the normal vibration waveform signal that is an obstacle to the detection of an abnormal vibration waveform by simply setting the data position and data size and adjusting the cursor position on the normal vibration waveform signal displayed on the display screen, and then operating the filter creation button, and can also create another filter in addition to the portion that cannot be removed by the filter.

[0023] The setting items of the detection condition setting screen according to the present invention are the threshold value of the trigger condition and the number of consecutive threshold overruns that are continuously exceeded, which is a lower limit that is a criterion for abnormality determination, the detection condition setting screen has an abnormal vibration acquisition start button that outputs an abnormal vibration acquisition setting command, transmits the abnormal vibration acquisition setting command having the threshold value and lower limit and making the inspection signal a filtered signal to a vibration waveform inspection device, and when an abnormal vibration waveform signal is acquired from the vibration waveform inspection device, the abnormal vibration waveform signal and its full-wave rectified waveform signal are displayed on a display screen, and the number of consecutive threshold overruns that the amplitude of the full-wave rectified waveform signal continuously exceeds the threshold is calculated and displayed on a display unit, thereby adjusting the threshold value and lower limit of the trigger condition. With this configuration, even if an operator does not understand the setting contents of the detection condition setting screen, the operator can adjust the width of the number of consecutive threshold overruns that the amplitude of the full-wave rectified waveform signal of the abnormal vibration waveform signal continuously exceeds the threshold to a desired width by simply operating the abnormal vibration acquisition start button, acquiring the abnormal vibration waveform signal, and repeating the steps of setting the threshold value and lower limit of the trigger condition.

[0024] The setting screen displayed according to the setting procedure of the necessary setting values ​​according to the present invention has a detection condition evaluation screen displayed following the detection condition setting screen, and the detection condition evaluation screen is preferably configured to allow the operator to arbitrarily select a filter for filtering the vibration waveform signal detected by the detection sensor and to arbitrarily select a logical operation expression for the judgment output related to the filter. In this way, when multiple sensors are arranged, the operator can combine the abnormality judgment results for each filter connected to these sensors, making it possible to detect only abnormal vibration waveform signals caused by deformation or destruction occurring in the object to be inspected.

[0025] It is desirable that the setting screen displayed according to the setting procedure of the necessary setting values ​​according to the present invention has a waveform recording setting screen displayed following the detection condition evaluation screen, and the waveform recording setting screen has a save button that outputs a save command, and this save command is used to store the setting values ​​of the input items of the setting screen, such as the signal name, the thinning signal name, the frequency division number, and the trigger position, as a detection condition pass / fail judgment setting file. In this way, by simply operating the save button, the operator can store the vibration waveform signal acquired when setting the various setting values ​​not only in the vibration waveform inspection device but also in a personal computer connected to the device.

[0026] The present invention is also characterized in that it is a computer that is connected to a vibration waveform inspection device and used to implement any of the configurations of the set value setting method described above. With this configuration, since there is one computer, the vibration waveform inspection device does not need to be provided with a set value setting program that executes the set value setting method, nor does it need to be provided with a storage unit with a large storage capacity. In addition, the display unit can be a simple indicator that can judge pass / fail and display waveform acquisition, etc., making it possible to provide an inexpensive vibration waveform inspection device that can be installed in large numbers in a factory.

[0027] Furthermore, the present invention is characterized in that it is a set value setting program that is read into a computer so as to function as the above-mentioned computer. With this set value setting program, an operator can easily set predetermined set values ​​even if he or she does not have special knowledge about the set value setting work, simply by transferring the set value setting program to a computer near a vibration waveform inspection device installed in a factory. Effect of the Invention

[0028] According to the present invention described above, when setting the settings of a vibration waveform inspection device which has many settings such as the gain of the amplifier section, the amplitude threshold value for the abnormality judgment condition, and the lower limit of the number of abnormal waveform sampling times related to the pass / fail judgment of the object to be inspected, the setting screens are displayed according to the setting value setting work order, and the setting values ​​on each screen can be set in the correct order, so that even if the user does not understand the setting contents of each setting screen, the setting work can be easily performed without losing time. [Brief description of the drawings]

[0029] [Figure 1] 4 is a flowchart for explaining a normal mode program of the setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention, with some parts omitted. [Diagram 2] FIG. 1 is a block diagram illustrating a configuration of a vibration waveform inspection device according to an embodiment of the present invention. [Diagram 3] 4 is a flowchart illustrating a vibration waveform inspection program installed in a control unit of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 4] 4 is a main flowchart for explaining a pass / fail judgment (for both obtaining normal and abnormal vibration waveforms) program incorporated in a control unit of the vibration waveform inspection device according to the embodiment of the present invention. [Diagram 5] 5 is a sub-flowchart illustrating a pass / fail judgment (for both obtaining normal and abnormal vibration waveforms) program incorporated in the control unit of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 6] 4 is a flowchart illustrating a non-vibration waveform acquisition program installed in a control unit of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 7] 4 is a setting mode selection screen displayed in a setting value setting method for a vibration waveform inspection device according to an embodiment of the present invention. [Figure 8] 13 is a basic setting screen when a pull-down menu is displayed, which is displayed by the setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention. [Figure 9] 13 is a gain setting screen for obtaining maximum amplitude without vibration, displayed by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 10] 13 is a screen for setting a maximum amplitude acquisition gain for sensor CH1, displayed by the setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention. [Figure 11] 13 is a screen for setting a maximum amplitude acquisition gain for sensor CH2, displayed by the setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention. [Figure 12] 13 is a gain setting screen for gain adjustment displayed by the setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention. [Figure 13] 13 is a filter coefficient creation screen for creating a filter CH1 connected to a sensor CH1, displayed by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 14] 13 is a filter coefficient creation screen for creating a filter CH2 connected to a sensor CH1, displayed by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 15] 13 is a filter coefficient creation screen for creating a filter of a filter CH1 connected to a sensor CH2, displayed by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 16] 13 is a filter coefficient creation screen for creating a filter CH2 connected to a sensor CH2, displayed by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 17] 13 is a detection condition setting screen when a pull-down menu of a filter CH1 connected to a sensor CH1 is displayed, the detection condition setting screen being displayed by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 18]13 is a detection condition setting screen when a pull-down menu of a filter CH1 connected to a sensor CH2 is displayed, the detection condition setting screen being displayed by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 19] 6 shows a detection condition evaluation screen displayed by the setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention. [Figure 20] 13 is a waveform recording condition setting screen when a pull-down menu of signal names and thinned signals is displayed, which is displayed by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Figure 21] 11 is a flowchart of the first half of a setting value setting program when a setting mode selection screen is displayed, illustrating a setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention. [Figure 22] 11 is a flowchart of the second half of a setting value setting program when a setting mode selection screen is displayed, illustrating a setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention. [Figure 23] 11 is a flowchart showing a basic setting screen and a vibration-free maximum amplitude acquisition gain setting screen of a setting value setting program for explaining a setting value setting method for a vibration waveform inspection device according to an embodiment of the present invention. [Figure 24] 11 is a flowchart illustrating a setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention when a maximum amplitude acquisition gain setting screen is displayed. [Diagram 25] 11 is a flowchart illustrating a setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention when a gain setting screen for gain adjustment is displayed. [Figure 26] 11 is a flowchart illustrating a setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention when a filter coefficient creation screen for creating a filter is displayed. [Figure 27] 13 is a flowchart illustrating a method for setting settings of the vibration waveform inspection device according to the embodiment of the present invention when a detection condition setting screen for the sensor CH1 and the filter CH1 is displayed. [Figure 28]11 is a flowchart illustrating a setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention when a detection condition evaluation screen is displayed. [Figure 29] 6 is a flowchart illustrating a setting value setting method for the vibration waveform inspection device according to the embodiment of the present invention when a waveform recording condition setting screen is displayed. [Diagram 30] 11 is a filter coefficient creation screen for illustrating a state in which an inverse filter is created using the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Diagram 31] 11 is a detection condition setting screen for explaining a state in which a trigger condition is created by the setting value setting method of the vibration waveform inspection device according to the embodiment of the present invention. [Diagram 32] 1A is an explanatory diagram illustrating a method for setting a threshold value of a trigger condition in a vibration waveform inspection device according to an embodiment of the present invention, and FIG. 1B is an explanatory diagram illustrating an adjustment of a lower limit of the number of samples by this adjustment. [Diagram 33] 13 is a main setting screen relating to a conventional method for setting settings of a vibration waveform inspection device. [Diagram 34] 13 is a terminal screen relating to a conventional method for setting settings for a vibration waveform inspection device. [Diagram 35] 13 is a detection condition setting screen relating to a conventional method for setting settings for a vibration waveform inspection device. [Diagram 36] 13 is a filter coefficient screen relating to a conventional method for setting values ​​for a vibration waveform inspection device. [Figure 37] 13 is a file operation screen relating to a conventional method for setting settings of a vibration waveform inspection device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] (Embodiment) Hereinafter, a method for setting the set value of a vibration waveform inspection device according to an embodiment of the present invention will be described with reference to the drawings, with reference to an AE inspection device, which is an example of a vibration waveform inspection device that detects vibration waveforms caused by deformation or destruction of a material when processing or assembling parts made of a fragile material. In FIG. 2, 1 is an AE inspection device (hereinafter referred to as an AE device), and has detection sensors CH1 and CH2 made of AE sensors attached to a machine device 2 that processes or assembles parts. This detection sensor may be one, and is configured to detect vibrations caused around the inspection object or by deformation or destruction of the inspection object. In addition, A / D conversion units 5 and 5 are connected to these via a first variable amplifier unit 4a and a second variable amplifier unit 4b, respectively, and a vibration waveform signal with a small amplitude is amplified to become an observation waveform signal that can be observed, and is A / D converted. These A / D converters 5, 5 are connected to the control unit 6, and the observed waveform signal is converted into an A / D converted signal of a digital waveform signal at a sample rate instructed by the control unit 6, and the A / D converted signal is sent to the control unit 6 each time it is converted, and processing such as filter processing, full-wave rectification processing, detection condition judgment, and various waveform acquisition, which will be described later, is performed. The waveform signals acquired during these processes are stored in a memory (not shown) for a predetermined number of A / D conversions, i.e., a predetermined number of signals, as one waveform, and are transferred to a buffer (not shown) for each waveform. This memory is configured to be able to select and store up to two types of signals at each processing stage, and these types are preset. Specifically, the A / D converted signal at the time of pass / fail judgment, i.e., the filter input signal, and the filter output signal, i.e., the filtered signal (which becomes an abnormal vibration waveform signal when an abnormality is judged), which will be described later, are selected. Furthermore, when setting gains to acquire a non-vibration waveform signal on a non-vibration gain setting screen 13 described later, a normal vibration waveform on a maximum amplitude acquisition screen 14a described later, an abnormal vibration waveform on the same maximum amplitude acquisition screen 14a, and a normal vibration waveform signal on a filter coefficient creation screen 16a described later, the A / D converted signal is selected in all cases, and when acquiring an abnormal vibration waveform on a detection condition setting screen 17a described later, the filter input / output signal, i.e., the A / D converted signal and the filtered signal, is selected. Furthermore, the filtered signal is selected on a detection condition evaluation screen described later.

[0031] A display unit 7 having operation buttons 7a such as a power button and an inspection start button, a memory unit 8 for storing various information, an external memory unit 9, and an I / O for connecting to an external terminal (hereinafter referred to as external I / O) 10 are connected to the control unit 6. A mechanical device 2 is connected to the external I / O 10, and a personal computer (hereinafter referred to as PC), which is an example of a computer, is also connected when setting various setting values ​​of the AE device 1. This PC is configured to be able to perform serial communication with the AE device 1 via a COM port.

[0032] The display unit 7 has lamps 7a including an abnormality judgment display lamp for displaying an abnormality judgment during waveform inspection, and a setting completion display lamp for setting (neither of which is shown).

[0033] The storage unit 8 is configured to store various setting values ​​and abnormality determination results related to a pass / fail judgment setting file (hereinafter referred to as a setting file). The external storage unit 9 is configured to store the above-mentioned setting file transmitted from the PC each time, and to store various vibration waveform signals (no vibration, normal vibration, abnormal vibration, etc.) detected by the detection sensors CH1 and CH2 via a buffer as waveform files with file names given to each waveform. Furthermore, the external storage unit 9 is configured to store filter coefficient files and the like transmitted from the PC on a filter creation screen in a program of a normal mode of a setting value setting method described below.

[0034] The control section 6 has a vibration waveform inspection program, a quality determination program for both obtaining normal and abnormal vibration waveforms, and a non-vibration waveform acquisition program.

[0035] The vibration waveform inspection program is composed of the following steps as shown in FIG. M1) Start-up settings are performed (the number of sensors required for pass / fail judgment, sample rate, gain, filter coefficient, detection condition thresholds, lower limits, etc. are read from memory unit 8 and these are set). M2) Determine whether the setting has been completed normally. If it has not been completed, output a command error code to the setting completion indicator lamp on the display unit 7 (turn off the lamp), and output the code to the external I / O 10 to notify the machine 2, and then jump to M4. M3) The command successful completion code is output to the setting completion indicator lamp on the display unit 7 (the lamp is turned on), and is also output to the external I / O 10 for notification to the mechanical device 2. M4) Wait for external input / serial communication reception, and when there is an external input, select the command corresponding to the external input (test start / stop processing) and jump to M6. M5) From the received data, in addition to pass / fail judgment setting commands, various setting commands (obtaining a non-vibration waveform, starting acquisition of normal and abnormal vibration, creating filter coefficients, starting evaluation of detection conditions, etc.), various end / stop commands (end of inspection, stop acquisition of normal and abnormal vibration, end of evaluation, etc.) and other commands (save waveform recording conditions, etc.) are created. M6) Execute the created / selected command and return to M4.

[0036] The pass / fail judgment program also serves as a normal / abnormal vibration waveform acquisition program, and is composed of the following steps as shown in FIGS. P1) Wait for command input. P2) When a normal / abnormal vibration waveform acquisition setting command is input, the type of inspection signal (A / D converted signal when gain is set, filtered signal when inspection conditions are set) is read from the setting command. P3) Determine whether the type of test signal is an A / D converted signal. If it is not an A / D converted signal, retrieve the amplitude threshold from the setting command mentioned above and the lower limit, which is the number of consecutive times this threshold is exceeded and serves as the criterion for determining an abnormality. Set these as the threshold for comparing the amplitude of the full-wave rectified signal and the lower limit for determining an abnormality, and then jump to P10. P4) Call up the gain from the setting command mentioned above and set it as the gain when reading the A / D converted signal. P5) The A / D converted signal from the sensor, which is converted at the sample rate, is read as an inspection signal each time conversion is performed. P6) The inspection signal is stored in memory (a predetermined number of signals can be stored for one waveform). P7) It is determined whether the number of inspection signals in the memory has reached a predetermined number (for one waveform), and if this has not reached the predetermined number, the process returns to P5. P8) A predetermined number of test signals (A / D converted signals) in the memory are transferred to the buffer, and the memory is cleared (the buffer immediately transfers the test signals to the PC). P9) Determine whether or not an acquisition stop command during gain setting has been input. If this command has not been input, return to P5; if this command has been input, return to P1. P10) When an inspection start command is input, the A / D converted signals from the detection sensors CH1 and CH2, which are converted at the sample rate, are read and filtered each time the A / D converted signals are converted. P11) The filtered signal is stored in memory as an inspection signal together with the A / D converted signal (a predetermined number of signals, up to two types, can be stored for one waveform), and the inspection signal is subjected to full-wave rectification processing (absolute value processing). P12) Determine whether the inspection result of the pass / fail judgment is abnormal or not, and if it is abnormal, jump to P19. P13) Determine whether the amplitude comparison of the full-wave rectified detection signal for each filter is complete, and if so, jump to P17. P14) Determine whether the amplitude of the full-wave rectified signal is equal to or greater than the threshold, and if it is equal to or greater than the threshold, increment the number of consecutive times the threshold is exceeded, and return to P13. P15) Clear the detection signal in memory. P16) Clear the consecutive number of times the threshold is exceeded and return to P13. P17) Determine whether the number of consecutive times the threshold is exceeded has reached the lower limit, and if not, jump to P19. P18) Save the abnormality determination as the test result. P19) It is determined whether the number of detection signals in the memory has reached a predetermined number (one waveform), and if this has not reached the predetermined number, the process returns to P10. P20) A predetermined number of inspection signals in the memory are transferred to a buffer as abnormal vibration waveforms, and the memory is cleared (the buffer immediately transfers the inspection signals to an external storage unit and a PC). P21) Save any abnormal test results (for notification) and clear the test results. P22) The abnormality determination display code is output to the abnormality display lamp of the display unit 7 and to the external I / O 10 to which the mechanical device 2 is connected. P23) Determine whether or not a command to stop acquiring abnormal waveforms during the test condition setting and evaluation or to end the test has been received. If this command has not been received, return to P10. P24)End.

[0037] The non-vibration waveform acquisition program is composed of the following steps as shown in FIG. Q1) Wait for input of the vibration-free waveform acquisition setting command in the received data. Q2) The type of inspection signal and the gains corresponding to each detection sensor CH1 and CH2 are read from the setting command, and these are set as the gains when reading the A / D converted signal. At the same time, the number of manual inspections is read, and the number of consecutive saves to the buffer is obtained and set as the initial value. Q3) While the machinery is stopped, manual inspection processing is performed and the A / D converted signals from the detection sensors CH1 and CH2 are converted at a sample rate. Each time a conversion is performed, the A / D converted signals are read into memory (a predetermined number of signals can be stored as one waveform) as an inspection signal. (At this time, each A / D converted signal is filtered and full-wave rectified in the same way as in the case of pass / fail judgment each time a conversion is performed, and various waveform signals are output, but only the A / D converted signals are stored in the memory.) Q4) The inspection signal is transferred from the memory to the buffer as a vibration-free waveform signal at a predetermined number of times (one waveform). (The memory is cleared after each transfer. The buffer is automatically assigned a file name and sent to the PC along with its maximum amplitude value.) Q5) Determine whether the number of consecutive saves is greater than 0. If it is greater than 0, decrement the number of consecutive saves and return to Q3. Q6) Stop reading the A / D converted signals from the detection sensors CH1 and CH2. Q7) End.

[0038] In the AE device 1, before starting the inspection of the object to be inspected, various setting values ​​are set, such as the gain of the first and second variable amplifiers 4a and 4b that amplify the vibration waveform signal detected by the detection sensors CH1 and CH2 to become an observed waveform signal, the setting of the part that needs to be removed by a digital filter (hereinafter referred to as the filter) from the normal vibration waveform signal detected when the processing or assembly of the object to be inspected is performed normally, and the setting of the amplitude threshold of the waveform acquisition condition for determining that the waveform is abnormal and the lower limit of the number of times the threshold is exceeded consecutively, etc. When setting these setting values, a PC having a setting value setting program is connected to the external I / O 10, and various vibration waveform acquisition setting commands having various setting values, acquisition stop / inspection end commands, etc. are sent from the PC using the communication function to the AE device 1, and various vibration waveform signals and information required for each setting are acquired. This setting value setting program allows the selection of either the normal mode program of the setting value setting method according to the present invention or the detailed mode program of the conventional setting method, as well as the selection of either creating a new setting file or reading an existing setting file, as well as the selection of the COM port number for serial communication with the AE device 1, and the reading of the file name if reading of an existing setting file is selected, on a setting mode selection screen 11 shown in Fig. 7. In any of the above selections, the communication state with the AE device 1 is set to either communication or non-communication upon confirmation of communication with the AE device 1. Note that the specific configuration for the above selections will be described later in the embodiment.

[0039] Also, when the above-mentioned selection is made and the normal mode program of the setting value setting method according to the embodiment of the present invention is selected as the setting mode, various vibration waveform signals, their maximum amplitudes, widths consisting of the number of times the threshold is exceeded continuously, etc. are acquired while serial communication with the AE device 1 is repeated, new setting values ​​are created from these, and finally a new setting file for pass / fail judgment is created. That is, this normal mode program includes the above-mentioned setting mode selection screen 11, the basic setting screen 12 shown in Fig. 8, a gain setting screen for maximum amplitude acquisition when there is no vibration (hereinafter referred to as a gain setting screen when there is no vibration) 13 shown in Fig. 9, a gain setting screen for maximum amplitude acquisition of the sensor CH1 (hereinafter referred to as a maximum amplitude acquisition screen) 14a shown in Fig. 10, a maximum amplitude acquisition screen 14b of the sensor CH2 shown in Fig. 11, a gain setting screen for gain adjustment (hereinafter referred to as a gain adjustment screen) 15 shown in Fig. 12, a filter coefficient creation screen for creating a filter for the filter CH1 of the sensor CH1 shown in Fig. 13, and a filter coefficient creation screen for creating a filter for the filter CH1 of the sensor CH2 shown in Fig. 14. 15, a filter creation screen 16d for filter CH2 of sensor CH2 shown in FIG. 16, a detection condition setting screen 17a for sensor CH1 shown in FIG. 17, a detection condition setting screen 17b for sensor CH2 shown in FIG. 18, a detection condition evaluation screen 18 shown in FIG. 19, a waveform recording condition setting screen 19 shown in FIG. 20, and a file transfer setting screen (not shown).

[0040] The non-vibration gain setting screen 13 is provided with a non-vibration waveform acquisition button, and the maximum amplitude acquisition screens 14a and 14b are provided with start and stop buttons for normal and abnormal vibration waveform acquisition. Furthermore, the filter creation screens 16a, 16b, 16c, and 16d are provided with start and stop buttons for normal vibration waveform acquisition and a filter creation button, and the detection condition setting screens 17a and 17b are provided with start and stop buttons for abnormal vibration waveform acquisition. Furthermore, the detection condition evaluation screen 18 is provided with an inspection start and stop button, and the waveform recording condition setting screen 19 is provided with a detection condition save button. These buttons are configured to create commands to be sent to the AE device 1 according to their respective types. Moreover, each of the above-mentioned screens is provided with a back button and a next button, allowing the selection of the previous screen or the next screen. Furthermore, these screens are configured to display a guide for the setting values ​​or a procedure for setting the setting values, so that the operator can easily perform the setting work on each screen.

[0041] Specifically, the normal mode program (see FIG. 1) is made up of the following steps: S1) The basic setting screen (sample rate, number of sensors) 12 is displayed. S2) Read and store the sample rate and number of sensors. S3) Change the sample rate and number of sensors, and wait for button operations. S4) When the sample rate or the number of sensors is changed, read the sample rate and the number of sensors and return to S3. S5) There is a button operated on the basic setting screen 12. When this button is the back button, the setting mode selection screen 11 is displayed and the program on the screen is returned to. S6) There is a button that is operated on the basic setting screen 12, and when this is the next button, the non-vibration gain setting screen (gain) 13 is displayed. S7) Wait for the gain to be changed or a button operation to be performed on the non-vibration gain setting screen. S8) When there is a change in gain, read and store the gain, and then return to S7. S9) There is a button that is operated on the vibration-free gain setting screen 13. When this is the vibration-free waveform acquisition button, it is determined whether the communication state is non-communication or communication, and if it is the communication state, it jumps to S11. S10) The non-vibration waveform file stored in the PC is read, a waveform selection screen (not shown) is opened, and these are displayed on the screen, and then the process jumps to S15. S11) The gain in the vibration-free gain setting screen and the sample rate and number of sensors in the previous basic setting screen are read, and a vibration-free waveform acquisition setting command is created that includes these and the previously set number of manual inspections of 5, and that sets the type of inspection signal to an A / D converted signal, and this setting command is sent to the AE device 1. S12) Wait for reception of the vibration-free waveform file and maximum amplitude transmitted from the AE device 1. S13) When the non-vibration waveform file and the maximum amplitude are received, a waveform selection screen is opened separately from the non-vibration gain setting screen 13, and the non-vibration waveform file and its maximum amplitude are displayed. S14) Determine whether the vibration-free waveform file and maximum amplitude have been obtained five times, and if not, return to S12. S15) Wait for selection of a vibration-free waveform file on the waveform selection screen. S16) The non-vibration waveform signal and its maximum amplitude are obtained from the non-vibration waveform file, the waveform selection screen is closed, these are displayed on the display surface of the non-vibration gain setting screen 13, and the process returns to S7. S17) There is a button operated on the vibration-free gain setting screen 13, and when this button is the back button, the process returns to S1. S18) There is a button that is operated on the vibration-free gain setting screen 13. When this button is the Next button, the maximum amplitude acquisition screen for normal and abnormal vibration (normal and abnormal maximum amplitude values, vibration-free amplitude value, threshold value) 14a is displayed and the threshold value is stored. S19) Change the threshold value on the maximum amplitude acquisition screen and wait for button operation. S20) The following explanation is omitted. S21) There is a button that can be operated on the maximum amplitude acquisition screen 14a. When this button is the Next button, the gain adjustment screen (amplifier value before adjustment, normal amplitude, abnormal amplitude, amplifier value after adjustment, normal amplitude, abnormal amplitude) 15 is displayed. S22) The following explanation is omitted. S23) There is a button that is operated on the gain adjustment screen 15. When this button is the Next button, a filter creation screen (filter setting values: filter type, data position, data size, cutoff frequency, gain, filter CH, normal vibration waveform file name) 16a is displayed. S24) The following explanation is omitted. S25) There is a button that is operated on the filter creation screen 16a. When this button is the Next button, a detection condition setting screen 17a (filter CH, amplitude threshold, width / lower limit determined by the number of consecutive times the threshold is exceeded, normal / abnormal vibration waveform file name) is displayed. S26) The following explanation is omitted. S27) There is a button that is operated on the detection condition setting screen 17a. When this button is the Next button, the detection condition evaluation screen (filter CH by condition, logical expression) 18 is displayed. S28) Explanation omitted S29) There is a button that is operated on the detection condition evaluation screen 18. When this button is the Next button, the waveform recording condition setting screen 19 (waveform signal name, decimation target signal name, frequency division number, trigger position) is displayed. S30) Explanation omitted S31) End.

[0042] When setting the setting values ​​required for the AE device 1 to judge the pass / fail of an object to be inspected using the above-mentioned setting value setting method, a setting mode selection screen (setting mode, input status of setting file, COM port, file name) 11 is displayed, and when the operator changes any of the input items (setting mode, input status of setting file, COM port, file name), these are read.

[0043] When the normal mode is selected as the setting mode on the setting mode selection screen 11, a program for the normal mode is executed. That is, the basic setting screen 12 is displayed, and awaits a change in the sample rate or number of sensors on the setting screen 12, or a button operation. In this state, if the operator changes at least one of the sample rate and number of sensors according to the guidelines on the basic setting screen 12, these are read and stored. Also, when a button operation is performed and the operated button is the back button, the previous screen, the setting mode selection screen 11, is displayed, and the settings are reset on the same screen. Furthermore, when the operated button is the next button, the non-vibration gain setting screen (gain) 13 is displayed.

[0044] The non-vibration gain setting screen 13 waits for a change in the set value, i.e., a change in gain or a button operation. In this state, when the gain is changed by the operator, this gain is read and stored. Also, when a button operation is performed on the non-vibration gain setting screen 13 and the button to be operated is the non-vibration acquisition button, it is determined whether the communication state is non-communication or communication. When the communication state is non-communication, the non-vibration waveform file and its maximum amplitude stored in the PC are read to the waveform selection screen, and the optimal non-vibration waveform file is selected from these. When the communication state is communication, that is, when a new non-vibration waveform file is acquired, the gain in the non-vibration gain setting screen, the sample rate in the basic setting screen on the previous screen, and the number of sensors are read. After that, a non-vibration waveform acquisition setting command is created that includes these gains, sample rates, and number of sensors, as well as the preset number of manual inspections of 5, and the type of the inspection signal is an A / D conversion signal, and this non-vibration waveform acquisition setting command is transmitted to the AE device 1.

[0045] In this state, the system waits for the transmission of the non-vibration waveform file and its maximum amplitude from the AE device 1, and when the non-vibration waveform file and its maximum amplitude are received, a waveform selection screen opens in addition to the non-vibration gain setting screen 13, and the non-vibration waveform file name and maximum amplitude are displayed in sequence on this waveform selection screen. Five non-vibration waveform files are displayed on this waveform selection screen, and when the operator selects one of them, the non-vibration waveform signal is read out from this non-vibration waveform file together with the maximum amplitude and displayed on the display surface of the non-vibration gain setting screen 13. While visually checking this non-vibration waveform signal and maximum amplitude, the operator can repeatedly adjust the gain until the optimum non-vibration waveform signal is obtained.

[0046] When a button is operated on the non-vibration gain setting screen 13 and the operated button is the back button, the previous basic setting screen 12 is displayed and the settings are reset on that screen. When the operated button is the next button, a maximum amplitude acquisition screen (normal / abnormal maximum amplitude value, non-vibration amplitude value, threshold value) 14a is displayed.

[0047] On the maximum amplitude acquisition screen 14a, similarly to the non-vibration gain setting screen 13 described above, the normal / abnormal maximum amplitude value, non-vibration amplitude value, and threshold value of the set values ​​of the maximum amplitude acquisition screen 14a are set according to the setting procedure of the screen (details will be explained in the embodiment described later, so will be omitted). Also, when a button is operated on the acquisition screen and this is the next button, the next screen of the gain adjustment screen 15 is displayed in the same manner, and further, the filter creation screens 16a to 16d, the detection condition setting screens 17a and 17b, the detection condition evaluation screen 18, and the waveform recording condition setting screen 19 are displayed in sequence, and the set values ​​of each screen are adjusted, or when the screen has an acquisition button, the process of acquiring various waveform signals from the AE device 1 is repeated to adjust the set values, or new set values ​​of other setting items are set from the vibration waveform signal, and these set values ​​are read and stored. When the final stage waveform recording condition setting screen (waveform signal name, thinning signal name, frequency division number, trigger position) 19 is displayed, the waveform recording conditions set by the operator and the settings of each screen mentioned above are read and stored as a setting file. Also, if necessary, a save command that provides the setting file and instructs saving it is created and sent to the AE device 1, completing all setting work.

[0048] As described above, the present invention is a setting value setting method for an AE device 1 configured to have detection sensors CH1, CH2 that detect vibrations occurring around or on an object to be inspected and first and second variable amplifiers 4a, 4b that amplify vibration waveform signals detected by the detection sensors CH1, CH2, create a filter that subtracts a part of the vibration waveform signal detected when the object to be inspected is processed or assembled normally, and remove disturbance signals that hinder the detection of abnormal vibration waveforms using the filter to detect abnormal vibration waveform signals, the method being characterized in that a setting screen is displayed in accordance with a setting work order for setting values ​​that need to be set, predetermined setting values ​​are set for setting items on the setting screen, and when the setting screen has an acquire button for acquiring a vibration waveform signal, a setting command comprising the setting value and a type of inspection signal is sent to the AE device 1, and the process of acquiring a vibration waveform signal from the AE device 1 is repeated to adjust the setting value or set a setting value for another setting item from the vibration waveform signal. According to this configuration, even if there are many setting values ​​that need to be set before starting the inspection, the setting screen is displayed in the order in which the setting values ​​are set, so that even an inexperienced operator who does not understand the setting procedure for the setting values ​​or the setting contents on the setting screen can easily perform the setting work on each setting screen without losing time. EXAMPLES

[0049] Next, a specific embodiment of a normal mode program of the setting value setting method according to the present invention will be described with reference to the drawings, which is a setting value setting program including a setting mode and setting file selection step. The setting value setting method according to the present invention is a setting value setting program shown in Figs. 21 to 29. This setting value setting program is composed of the following steps. For the sake of explanation, the steps will be explained by separating them with paragraph numbers corresponding to the figures.

[0050] (See Figure 21) N1) Display the setting mode selection screen (setting values: setting mode, input status of setting file, COM port number, file name) 11. N2) Setting mode: Reads and stores the input state of the setting file toggle button (normal mode, detailed mode, new, existing), COM port number, and file name. N3) Waits for changes to settings (input state of toggle button of setting mode / setting file, COM port number, file name) and button operations. N4) When the input state of the toggle button in the setting mode or the file name is changed, the mode and file name that are in the on state are read and stored, and the process returns to N3. N5) When there is a change in the input state of the setting file, it is determined whether the file in the ON state is a new file or an existing file is being read. If it is a new file, the setting file is stored as a new file and the process returns to N3. N6) When changing the setting file by reading an existing file, a read confirmation dialog box (with Yes, No, and Cancel buttons) will be displayed to confirm reading from the device. N7) Wait for a button press in the device read confirmation dialog. N8) There is a button that is operated in the dialog box to confirm reading from the device. When this button is the cancel button, the on state in the setting file on the setting mode selection screen is changed to new creation, this is stored, and then the process returns to N3. N9) There is a button that is operated in the dialog box to confirm reading from the device. If this button is set to No, an existing setting file is called from the PC, and the setting file selection screen is opened and displayed, and one of the files is selected. N10) Change the selected existing setting file name to the file name on the setting mode selection screen 11, and return to N3. N11) There is a button that is operated in the read confirmation dialog from the device. When this button is the Yes button, a communication request signal is sent to the AE device 1. N12) Wait for reception of a transmission enable signal from the AE device 1. If this transmission enable signal is not received, a communication port error is displayed, and the on state in the setting file on the setting mode selection screen 11 is changed to new creation, which is stored, and then return to N3. N13) Create a command to call the existing setting file and send it to the AE device 1.

[0051] (See Figure 22) N14) Wait for the reception of the existing configuration file sent from AE device 1. N15) When an existing configuration file is received, a file selection screen is opened and the existing configuration file is displayed on that screen. N16) Wait for a setting file to be selected on the file selection screen, change the name of the selected existing setting file to the file name on the setting mode selection screen 11, and return to N3. N17) On the setting mode selection screen 11, there is a button to be operated. When this button is the NEXT button, a communication request signal is sent to the AE device 1. N18) Wait for reception of a transmission clear signal from the AE device 1, and when this transmission clear signal is received, store the communication state as the communication mode and jump to N22. N19) Display communication errors on an error message board (not shown) N20) Store the communication status as non-communication mode. N21) Wait for the OK button on the error message board to be pressed. N22) Determine whether the setting file is an existing file or a new file. If it is an existing file, read the setting values ​​from the setting file with the changed file name, set these setting values ​​as the setting values ​​for the corresponding input items on each setting screen, and jump to N24. N23) Set the initial setting values ​​for new creation as the setting values ​​for the corresponding input items on each setting screen. N24) Determine whether the setting mode is detailed mode or normal mode, and if it is detailed mode, execute the detailed mode program (end the setting value setting program).

[0052] (See Figure 23) N25) When the setting mode is normal mode, the basic setting screen (sample rate, number of sensors) 12 is displayed. N26) Read and store the sample rate and number of sensors. N27) Change sample rate and number of sensors, wait for button operation. N28) When the sample rate or the number of sensors is changed, read the sample rate and the number of sensors and return to N27. N29) There is a button that is operated on the basic setting screen 12, and when this is the back button, it returns to N1. N30) There is a button that is operated on the basic setting screen 12, and when this is the Next button, the non-vibration gain setting screen (gain) 13 is displayed. N31) Wait for the gain to be changed or a button to be pressed on the non-vibration gain setting screen. N32) When there is a gain change, read the gain, store it, and return to N31. N33) There is a button that is operated on the non-vibration gain setting screen 13. When this is the button for obtaining non-vibration waveform, it is determined whether the communication status is non-communication or communication, and if it is communication, it jumps to N35. N34) Read the vibration-free waveform file saved in the PC, open the waveform selection screen, display them on that screen, and jump to N39. N35) Read the gain in the vibration-free gain setting screen and the sample rate and number of sensors in the previous basic setting screen, create a vibration-free waveform acquisition setting command that includes these and the previously set number of manual inspections of 5, and sets the type of inspection signal to an A / D converted signal, and send this setting command to the AE device 1. N36) Wait for reception of the vibration-free waveform file with maximum amplitude sent from AE device 1. N37) When a non-vibration waveform file and maximum amplitude are received, a waveform selection screen is opened separately from the non-vibration gain setting screen 13, and the non-vibration waveform file and its maximum amplitude are displayed. N38) Determine whether the vibration-free waveform file and maximum amplitude have been obtained five times. If not, return to N36. N39) Wait for the selection of a vibration-free waveform file on the waveform selection screen. N40) Obtain the non-vibration waveform signal and its maximum amplitude from the selected non-vibration waveform file, close the waveform selection screen, display them on the display surface of the non-vibration gain setting screen, and return to N31. N41) On the vibration-free gain setting screen 13, there is a button that can be operated, and when this is the back button, it returns to N25.

[0053] (See Figure 24) N42) On the vibration-free gain setting screen 13, there is a button that can be operated. When this button is the Next button, the maximum amplitude acquisition screen for normal and abnormal vibration (normal and abnormal maximum amplitude, vibration-free amplitude, threshold value) 14a is displayed and the threshold value is stored. N43) Change the threshold during maximum amplitude acquisition screen and wait for button operation. N44) When the threshold value has been changed, it is determined whether the communication state is non-communication mode or communication mode, and if it is non-communication mode, the process returns to N43. N45) Read the threshold value in the maximum amplitude acquisition screen, store it, and return to N43. N46) There is a button operated on the maximum amplitude acquisition screen 14a, and when this is the start button for acquiring a normal vibration waveform, it is determined whether the communication state is in non-communication mode or communication mode, and if it is in communication mode, jump to N50. N47) Read the normal vibration waveform files stored on the PC, open the waveform selection screen, and display these waveform files on that screen. N48) Wait for the normal vibration waveform file to be selected on the waveform selection screen. N49) Read the normal vibration waveform signal from the selected normal vibration waveform file, calculate its maximum amplitude, and jump to N57. N50) The stored threshold value is read, and a normal vibration waveform acquisition setting command is created in which the type of the inspection signal is an A / D converted signal, and this normal vibration waveform acquisition setting command is sent to the AE device 1. N51) It is determined whether or not a normal vibration waveform file and its maximum amplitude have been received from the AE device 1. If these have not been received, the process jumps to N53. N52) Open the waveform selection screen and display the normal vibration waveform file and its maximum amplitude on that screen. N53) It is determined whether the stop button for acquiring normal vibration waveforms has been operated. If it has not been operated, return to N51. N54) Create a command to stop acquiring normal vibration waveforms and send it to the AE device 1. N55) Wait for the normal vibration waveform file to be selected on the waveform selection screen. N56) Read out the normal vibration waveform signal and maximum amplitude of the selected normal vibration waveform file. N57) The normal vibration waveform signal of the selected normal vibration waveform file is displayed on the display surface of the maximum amplitude acquisition screen 14a, and the maximum amplitude is set as the maximum amplitude value on the same screen. The waveform selection screen is then closed, and the process returns to N43. N58) There is a button operated on the maximum amplitude setting screen 14a. When this is the button to start acquiring an abnormal vibration waveform, the same steps as in the case of the button to start acquiring a normal vibration waveform (replace normal with abnormal in N46 to N57) are executed, and then return to N43. N59) When a button is operated on the maximum amplitude acquisition screen 14a and this button is the back button, return to N30. (From here on, explanation will be omitted, but N42 to N59 are repeated for the maximum amplitude acquisition screen CH2.)

[0054] (See Figure 25) N60) There is a button that is operated on the maximum amplitude acquisition screen 14a, and when this is the Next button, the gain adjustment screen (amplifier value before adjustment, normal amplitude, abnormal amplitude, amplifier value after adjustment, normal amplitude, abnormal amplitude) 15 is displayed. N61) The gain and maximum amplitude are displayed on the gain adjustment screen 15 when a normal vibration waveform and an abnormal vibration waveform are acquired. N62) Set the adjustment gain on the gain adjustment screen 15 to an initial value of 1, store this, and display the post-adjustment maximum amplitude (maximum amplitude before adjustment x adjustment gain) of each of the normal vibration waveform and abnormal vibration waveform. N63) Change the adjustment gain on the gain adjustment screen and wait for button operation. N64) When the adjustment gain is changed, the adjusted gain is read, the post-adjustment maximum amplitude for each of the normal and abnormal vibration waveforms is calculated (maximum amplitude before adjustment x adjusted gain), the post-adjustment maximum amplitude for each of the normal and abnormal vibration waveforms in the gain adjustment screen is updated, and then the process returns to N63. N65) There is a button that is operated on the gain adjustment screen 15, and when this is the back button, it returns to N42.

[0055] (See Figure 26) N66) There is a button that is operated on the gain adjustment screen 15. When this button is pressed, the filter creation screen 16a (filter setting values: filter type, data position, data size, cutoff frequency, gain, filter CH, normal vibration waveform file name) is displayed. N67) The adjusted gain stored on the previous gain adjustment screen 15 is called up and set as the gain on the filter creation screen 16a. N68) Wait for the setting value on the filter creation screen 16a to be changed and for button operation to be performed. N69) There is a button operated on the filter creation screen 16a. When this is the start button for acquiring a normal vibration waveform, it is determined whether the communication state is in non-communication mode or communication mode. If it is in communication mode, jump to N73. N70) Read normal vibration waveform files from a PC, open a waveform selection screen with a cancel button, and display these waveform files on the screen along with their respective maximum amplitudes. N71) On the waveform selection screen, select a normal vibration waveform file and wait for a button operation. If the button operated is the cancel button, return to N68. N72) When a normal vibration waveform file is selected, read out the normal vibration waveform signal and its maximum amplitude of the selected normal vibration waveform file, jump to N80, and close the waveform selection screen. N73) The gain on the filter creation screen 16a is read, and a filter creation normal vibration waveform acquisition gain setting command having the gain and an A / D conversion signal type is created, and sent to the AE device 1. N74) It is determined whether or not the normal vibration waveform file and its maximum amplitude have been received from the AE device 1. If these have not been received, the process jumps to N76. N75) Open the waveform selection screen and display the normal vibration waveform file and its maximum amplitude on that screen. N76) It is determined whether the operated button is the button to stop acquisition of a normal vibration waveform. If it is not the button to stop acquisition, return to N74. N77) Create a command to stop acquiring normal vibration waveforms and send it to the AE device 1. N78) Wait for the normal vibration waveform file to be selected on the waveform selection screen. N79) Read the normal vibration waveform signal of the selected normal vibration waveform file and its file name, and close the waveform selection screen. N80) The normal vibration waveform signal of the selected normal vibration waveform file is displayed on the display surface of the filter creation screen 16a together with the file name, and the process returns to N68. N81) When the filter setting values ​​(data position, data size, cutoff frequency) have been changed, the filter setting values ​​are read. N82) It is determined whether the filter creation status has been created or not. If it has been created, jump to N85. If it has not been created, return to N68. N83) There is a button operated on the filter creation screen 16a. When this is the filter creation button, the filter type, data position, data size, and cutoff frequency of the filter settings are read, and from these, filter coefficients are calculated according to the filter type (inverse filter, low pass, wide pass) (in the case of an inverse filter, the amplitude of the range determined by the data position and data size is read from the normal vibration waveform signal displayed on the filter creation screen, and linear prediction method is used from these amplitudes) and this is stored as a filter coefficient file (one filter coefficient file is sufficient regardless of the number of filters). N84) The calculated filter coefficients are displayed as frequency-gain characteristics on the filter characteristic display area of ​​the filter creation screen 16a. N85) The normal vibration waveform signal displayed on the display surface of the filter creation screen 16a is processed by a filter having the filter coefficients. N86) The output signal of the filter is displayed on the filter output display surface of the filter creation screen 16a, and the process returns to N68. N87) When a button is operated on the filter creation screen 16a and this button is the back button, return to N60. (From here on, we will not repeat the explanation, but repeat N66 to N87 for the filter creation screens 16b, 16c, and 16d.)

[0056] (See Figure 27) N88) On the filter creation screen 16a, there is a button to be operated. When this is the Next button, a detection condition setting screen 17a relating to sensor CH1 and filter CH1 (filter CH, threshold value of amplitude of trigger condition, width and lower limit determined by the number of consecutive times the threshold is exceeded, normal and abnormal vibration waveform file names) is displayed (when setting filter CH2 and when detection sensor CH2 is placed, steps N88 to N110 are repeated). N89) Set the threshold value of the filter creation screen 16a as the threshold value of the detection condition setting screen 17a, and set the initial value (200) as the lower limit. N90) Set the normal vibration waveform file name of the previous filter creation screen 16a as the normal file name of the detection condition setting screen 17a, and display the normal amplitude waveform signal, filtered signal, and amplitude waveform signal (full-wave rectified) on the filter input, filter output, and amplitude display screens, respectively. N91) Display a coefficient file save confirmation dialog (Save button, Cancel button) on a screen separate from the detection condition setting screen 17a. N92) The coefficient file save confirmation dialog waits for button operation for the coefficient file, and if the button operated is the Cancel button, a save warning (saving not possible) is displayed and the program jumps to N94. N93) When the operated button is the save button, save the coefficient file. N94) Wait for the threshold value and lower limit to be changed and for button operation on the detection condition setting screen 17a. N95) There is a button that is operated on the detection condition setting screen 17a. When this is the start button for abnormal waveform acquisition, it is determined whether the communication state is non-communication mode or communication mode. If it is communication mode, it jumps to N99. N96) Read the abnormal vibration waveform files stored on the PC, open a waveform selection screen with a cancel button, and display these waveform files on that screen. N97) On the waveform selection screen, select an abnormal vibration waveform file, wait for the cancel button to be pressed, and when the cancel button is pressed, return to N94. N98) When an abnormal vibration waveform file is selected, the abnormal vibration waveform signal and maximum amplitude of the selected abnormal vibration waveform file are read out and displayed on the filter input display surface of the detection condition setting screen 17a, and the waveform selection screen is closed and then the process jumps to N107. N99) The threshold value on the detection condition setting screen 17a and the lower limit which is the number of consecutive times the threshold is exceeded and which is the criterion for determining an abnormality are read, an abnormal vibration waveform acquisition setting command which includes these and sets the type of inspection signal as a filtered signal is created, and this abnormal vibration waveform acquisition setting command is sent to the AE device 1. N100) It is determined whether or not the abnormal vibration waveform file and its maximum amplitude have been received from the AE device 1. If these have not been received, the process jumps to N102. N101) Open the waveform selection screen and display the abnormal vibration waveform file and its maximum amplitude. N102) It is determined whether the operated button is the abnormal vibration waveform acquisition stop button, and if this button has not been operated, return to N100. N103) Create an abnormal vibration waveform acquisition stop command and send it to the AE device 1. N104) Wait for the abnormal vibration waveform file to be selected on the waveform selection screen. N105) The abnormal vibration waveform signal and maximum amplitude of the selected abnormal vibration waveform file are read out and displayed on the abnormal vibration waveform display surface in the detection condition setting screen, and the waveform selection screen is closed. N106) It is determined whether or not an abnormal vibration waveform signal is displayed on the abnormal vibration waveform display surface of the detection condition setting screen 17a. If this is not displayed, the process returns to N94. N107) The abnormal vibration waveform signal displayed on the display surface of the detection condition setting screen 17a is read, and a filtered signal is calculated by filtering the signal, and a full-wave rectified signal is calculated by full-wave rectifying the signal (absolute value processing), i.e., an amplitude waveform signal, and the number of consecutive times the threshold is exceeded from the amplitude waveform signal is calculated as a width. N108) Display the filter input, i.e., the A / D converted signal, the filtered signal, and the full-wave rectified signal created from the filtered signal, on the filter input, filter output, and amplitude display areas of the detection condition setting screen 17a, respectively, and set the number of consecutive times the threshold is exceeded as the width of the same setting screen, and then return to N94. N109) When the trigger conditions (threshold, lower limit) on the detection condition setting screen 17a are changed, return to N106. N110) There is a button that can be operated on the detection condition setting screen 17a. When this button is the back button, return to N66.

[0057] (See Figure 28) N111) There is a button that is operated on the detection condition setting screen 17a. When this button is pressed, the detection condition evaluation screen (filter CH by condition, logical expression) 18 is displayed. N112) Filter setting and logical expression of detection condition evaluation screen 18. Change the logical expression and wait for button operation. N113) Filter settings and logical expressions When the logical expressions are changed, the filter settings (toggle button is on) and logical expressions are read and stored according to the conditions, and the process returns to N112. N114) There is a button operated on the detection condition evaluation screen 18. When this is the button to start the test, it is determined whether the communication state is in the non-communication mode or the communication mode. When it is in the non-communication mode, the process returns to N112. N115) The changed filter settings and logical expressions are called up for each setting condition, a detection condition evaluation setting command is created that includes these and sets the type of the inspection signal to a filtered signal, and this detection condition evaluation setting command is sent to the AE device 1. N116) It is determined whether or not the abnormal vibration waveform file and its maximum amplitude have been received from the AE device 1 (at this time, the machine device 2 is operating under both the normal vibration waveform generation setting and the abnormal vibration waveform generation setting), and if these have not been received, it jumps to N118. N117) Open the waveform selection screen and display the abnormal vibration waveform file and its maximum amplitude on that screen. N118) It is determined whether the selected button is the test stop button, and if it is not the test stop button, the process returns to N116. N119) Create an inspection stop command and send it to the AE device 1, then return to N112. N120) There is a button that can be operated on the detection condition evaluation screen 18. When this button is the back button, return to N88.

[0058] (See Figure 29) N121) There is a button that is operated on the detection condition evaluation screen 18. When this is the Next button, the waveform recording condition setting screen 19 (waveform signal name, name of signal to be thinned out, frequency division number, trigger position) is displayed. N122) Wait for the recording conditions (waveform signal name, signal to be thinned out, division number, trigger position) on the waveform recording condition setting screen 19 to be changed and for button operation. N123) When any of the recording conditions (signal name, signal to be thinned out, frequency division number, trigger position) is changed, these are stored and the process returns to N122. N124) There is a button that is operated on the waveform recording condition setting screen 19. When this button is the recording condition save button, a save confirmation dialog box (not shown) equipped with a save button and a cancel button is displayed. N125) When the Cancel button is pressed in the save confirmation dialog, jump to N131. N126) When the Save button is operated in the Save confirmation dialog, the settings of each setting screen, including the setting screen in question, are called up and saved in the PC as a setting file with the file name stored in the setting mode selection screen 11. N127) It is determined whether the communication state is non-communication mode or communication mode. If it is non-communication mode, jump to N131. N128) Open the transfer confirmation dialog (Yes button, No button) to confirm the transfer of the configuration file to AE device 1. N129) It is determined whether the button pressed in the transfer confirmation dialog is the Yes button or the No button. If it is the No button, jump to N131. N130) When the button operated in the transfer confirmation dialog is the Yes button, a save command is created which includes a setting file and instructs to save the setting file, and this save command is sent to the AE device 1. N131) Close the save screen or transfer confirmation dialog and return to N122. N132) There is a button that is operated on the waveform recording condition setting screen 19, and when this button is the back button, it returns to N111. N133) There is a button that is operated on the waveform recording condition setting screen 19, and when this is the Next button, confirm the saving of the setting file. N134)End.

[0059] According to the above-mentioned method for setting the set values, when the set values ​​required for setting the AE device 1 are set, a setting mode selection screen (setting mode, input state of setting file, COM port, file name) 11 shown in FIG. 7 is displayed, and the operator can select a detailed mode program according to the conventional setting method or a normal mode program according to the present invention, and can also select whether to create a new setting file or load an existing setting file, and further select the file name. At this time, when the normal mode program is set, a basic setting screen (sample rate, number of sensors) 12 shown in FIG. 8 is displayed. When the sample rate and number of sensors are changed on the basic setting screen 12 according to the number of sensors to be used and the guidelines on the same screen, these are stored as needed. In addition, there is a button that is operated on the basic setting screen, and when this is the back button, the previous setting mode selection screen 11 is displayed, and the settings are reset on the same screen.

[0060] There is a button that is operated on the basic setting screen 12, and when this button is the next button, a vibration-free gain setting screen (gain) 13 (see FIG. 9) is displayed. When the vibration-free waveform acquisition button is operated according to the setting procedure of the set value displayed on the vibration-free gain setting screen 13, the vibration-free waveform file and its maximum amplitude stored in the PC are read according to the communication state set on the setting mode selection screen 11, that is, when communication is not performed, and these are displayed on the waveform selection screen that is opened at the same time. Also, when the communication state is communication, the gain on the vibration-free gain setting screen, the sample rate on the previous basic setting screen 12, and the number of sensors are read, and a vibration-free waveform acquisition setting command that includes these and the number of manual inspections set in advance (five times) and that sets the type of inspection signal to an A / D conversion signal is created and transmitted to the AE device 1. As a result, five vibration-free waveform files are transmitted from the AE device 1, and these are displayed on the waveform selection screen.

[0061] Whether the communication state is communication or non-communication, the non-vibration waveform files are displayed on the waveform selection screen together with their maximum amplitudes, and the optimal non-vibration waveform file is selected on this screen. This causes a non-vibration waveform signal to be read from the selected non-vibration waveform file, and this non-vibration waveform signal and its maximum amplitude value are displayed on the display surface of non-vibration gain setting screen 13, and the waveform selection screen is closed. Gain adjustment on this screen is repeated until the amplitude displacement of this non-vibration waveform signal can be visually confirmed, and a non-vibration waveform signal of an appropriate amplitude is obtained. At this time, if the optimal non-vibration waveform signal cannot be obtained, the back button is operated on non-vibration gain setting screen 13, the previous basic setting screen 12 is displayed, and resetting is performed.

[0062] When a non-vibration waveform signal of an appropriate amplitude is acquired on the non-vibration gain setting screen 13 and the Next button is operated, the maximum amplitude acquisition screen (normal / abnormal maximum amplitude, non-vibration amplitude, threshold value) 14a (see FIG. 10) for sensor CH1 is displayed. At this time, the non-vibration amplitude of the waveform acquisition conditions is automatically set to a value twice the maximum amplitude value of the non-vibration waveform signal described above, and the threshold value is automatically set to a value twice the non-vibration amplitude as an initial value. In this state, the system waits for a change in the threshold value or a button operation, and when the threshold value is changed, the system waits for a change in the threshold value or a button operation depending on the communication state set on the setting mode selection screen 11, i.e., when not communicating. Also, when the communication state is communicating, the system reads in the changed threshold value, stores it, and waits for a change in the threshold value or a button operation.

[0063] When the normal vibration waveform acquisition button is operated on the maximum amplitude acquisition screen 14a, the normal vibration waveform files and their maximum amplitudes stored in the PC are read in according to the above-mentioned communication state, i.e., when communication is not in progress, and are displayed on the waveform selection screen that is opened at the same time. When the optimal normal vibration waveform file is selected on this screen, the normal vibration waveform signal and its maximum amplitude value are read from the selected normal vibration waveform file and displayed on the display surface of the maximum amplitude acquisition screen 14a, and the waveform selection screen is closed.

[0064] When the normal vibration waveform acquisition button described above is operated and the communication state is communication, a setting command for setting the type of inspection signal to an A / D converted signal is created, and this setting command is sent to the AE device 1. As a result, the AE device 1 transmits a normal vibration waveform file and its maximum amplitude, which are displayed on the waveform selection screen (at this time, the machine device 2 is set so that no abnormal vibration waveform signal is generated). This normal vibration acquisition is repeated, and when the normal vibration waveform acquisition stop button is operated, a normal vibration waveform acquisition stop command is created and sent to the AE device 1. The acquisition of the normal vibration waveform is stopped.

[0065] Regardless of whether the communication state is communication or non-communication, the normal vibration waveform files are displayed on the waveform selection screen together with their maximum amplitudes, and when an optimal normal vibration waveform file is selected on this screen, the normal vibration waveform signal is read from the selected normal vibration waveform file and displayed on the display surface of the maximum amplitude acquisition screen 14a together with its maximum amplitude value. At the same time, the waveform selection screen is closed and awaits a change in the threshold value or a button operation.

[0066] When the abnormal vibration waveform acquisition button is operated on the maximum amplitude acquisition screen 14a, a setting command is created to set the type of the inspection signal to an A / D conversion signal, as with the normal vibration waveform, and this is sent to the AE device 1, and the abnormal vibration waveform signal and its maximum amplitude are acquired (at this time, the machine device 2 is set to generate an abnormal vibration waveform signal). These abnormal vibration waveform signals and their maximum amplitudes are displayed on the display surface of the maximum amplitude acquisition screen 14a, and wait for a change in the threshold or button operation. During this time, the amplitude displacement of each of the abnormal vibration waveform signal and the normal vibration waveform signal described above can be visually confirmed, so the amplitude threshold of the waveform acquisition conditions is adjusted so that only the abnormal vibration waveform signal can be detected. During this adjustment, if a clear boundary area between the normal vibration waveform signal and the abnormal vibration waveform signal cannot be obtained, the back button is operated on the maximum amplitude acquisition screen 14a, returning to the previous screen, the no-vibration gain setting screen 13, and the gain is reset. In addition, taking into consideration the case where an abnormal vibration waveform signal cannot be obtained, the threshold is adjusted so that a boundary area can be obtained between the normal vibration waveform signal alone and the abnormal vibration waveform signal generated during the inspection.

[0067] By adjusting the threshold value, an abnormal vibration waveform signal that can be distinguished from normal vibration is acquired, and the next button is operated on the maximum amplitude acquisition screen 14a. At this time, if the detection sensor CH2 is provided, the maximum amplitude acquisition screen 14b (see FIG. 11) for the detection sensor CH2 is similarly displayed, and the above-mentioned setting work is performed.

[0068] When the Next button is operated on the maximum amplitude acquisition screen 14a (14b when the detection sensor CH2 is present), a gain adjustment screen (amplifier value before adjustment, normal amplitude, abnormal amplitude, amplifier value after adjustment, normal amplitude, abnormal amplitude) 15 is displayed (see FIG. 12). In this gain adjustment screen, the gains when acquiring normal and abnormal vibration waveforms and the maximum amplitudes of the normal and abnormal vibration waveform signals acquired on the above-mentioned maximum amplitude acquisition screen 14a are set as the initial values ​​before adjustment of the gains of the amplifiers of the detection sensors CH1 and CH2, the normal amplitudes, and the abnormal amplitudes. In addition, the initial value of the amplifier gain after adjustment is set to 1, and the values ​​obtained by multiplying the pre-adjustment value by the adjusted gain are set to the normal amplitudes and abnormal amplitudes after adjustment. Thereafter, the post-adjustment maximum amplitude is updated every time the gain of the amplifier is adjusted according to the guideline and the setting procedure of the set values ​​displayed on the gain adjustment screen 15, and awaits a change in the post-adjustment gain or a button operation. During this time, if either the normal or abnormal amplitude does not reach the target maximum amplitude, the back button on the gain adjustment screen 15 is operated, the previous screen, the maximum amplitude acquisition screen 14a or 14b, is displayed, and the resetting work is performed on that screen.

[0069] After adjusting the gain of the amplifier on the gain adjustment screen 15, when either the normal amplitude or the abnormal amplitude reaches a target value, the next button is operated on the gain adjustment screen 15, and a filter creation screen (filter type, gain, data position, filter CH, data size, cutoff frequency, normal vibration waveform file name) 16a shown in FIG. 13 is displayed. At the same time, the adjustment gain on the previous screen is called and set as the gain on the filter creation screen 16a. When the start button for normal waveform acquisition is operated according to the set value setting procedure on the filter creation screen 16a, the normal vibration waveform file and its maximum amplitude stored in the PC are read depending on the communication state set on the setting mode selection screen 11, that is, when there is no communication, and these are displayed on the waveform selection screen that is opened at the same time. This screen has a cancel button, and it is possible to determine whether or not to cancel the acquisition of the normal vibration waveform on this screen, and in the case of cancellation, the setting value is changed or a button operation is awaited. In addition, when an optimal normal vibration waveform file is selected on the waveform selection screen, a normal vibration waveform signal is read from the selected normal vibration waveform file together with the file name and displayed on the display surface of filter creation screen 16a, and the waveform selection screen is closed.

[0070] When the communication state is communication, the gain of the filter creation screen 16a is read, and a filter creation normal vibration waveform acquisition setting command having this gain and with the type of the inspection signal being an A / D converted signal is created and transmitted to the AE device 1. As a result, the normal vibration waveform file and its maximum amplitude are transmitted from the AE device 1, and these are displayed on the waveform selection screen that is opened at the same time. When this normal vibration waveform acquisition is repeated and the stop button for normal vibration waveform acquisition is operated, a normal vibration waveform acquisition stop command is created and transmitted to the AE device 1, and acquisition of the normal vibration waveform is stopped.

[0071] Whether the communication state is communication or non-communication, the normal vibration waveform files are displayed on the waveform selection screen together with their maximum amplitudes, and the optimum normal vibration waveform file is selected on this screen. As a result, the normal vibration waveform signal and its file name are read from the selected normal vibration waveform file and displayed on the normal display surface of the filter creation screen 16a as shown in Figure 30, and the waveform selection screen is closed, waiting for a change in the setting value or a button operation.

[0072] Thereafter, while visually observing the normal vibration waveform signal displayed on the normal display surface of the filter creation screen 16a, the operator selects the filter CH1 and the type of filter in order to create a filter for the part that is an obstacle to detecting only the abnormal vibration waveform signal. Next, the positions of two cursors on the normal vibration waveform signal are adjusted and selected by input values ​​of the data position and data size (see FIG. 30). After that, when the filter creation button is operated, the filter type, data position, data size, and cutoff frequency are read, and a filter coefficient corresponding to the part between the cursors is created according to the filter type. At this time, if the inverse filter is selected as the filter type, a filter coefficient for subtracting the normal vibration waveform signal of the above-mentioned part is calculated from these amplitudes using a linear prediction method, and this filter coefficient is displayed on the display surface of the filter creation screen 16a as a gain-frequency characteristic. At the same time, the normal vibration waveform signal after passing through this inverse filter is displayed on the display surface as the output signal of the filter CH1. Furthermore, when low-pass or high-pass is selected as the filter type, the aforementioned position is adjusted by the input value of the cutoff frequency, and then the filter coefficients are calculated in the same manner. These are then stored as a filter coefficient file and displayed on the display surface of the filter creation screen 16a.

[0073] When the filter output on the display surface of the filter creation screen 16a is not sufficiently subtracted at the cursor portion, the calculation of the filter coefficients is repeated until an appropriate filter output is obtained. At this time, if an appropriate filter output is not obtained, the back button on the filter creation screen 16a is operated, the previous gain adjustment screen 15 is displayed, and the gain is reset.

[0074] When filter creation on the filter creation screen 16a is completed and it is necessary to subtract other parts from the filter output on the same screen, or when detection sensor CH2 is arranged, the next button on the filter creation screen 16a is operated to display filter creation screens 16b, 16c, and 16d (see Figures 14, 15, and 16), and the above-mentioned filter creation work is performed on each screen.

[0075] When the Next button is operated on the filter creation screen that is finally displayed among the filter creation screens 16a to 16d according to the filter creation status and the number of sensors, a detection condition setting screen (filter CH, amplitude threshold of trigger condition, width consisting of the number of times of consecutive threshold exceedance, lower limit, normal / abnormal vibration waveform file name) 17a of the sensor CH1 shown in Fig. 17 is displayed. At this time, as shown in Fig. 31, the threshold of the trigger condition on the detection condition setting screen 17a and the lower limit of the width consisting of the number of times of consecutive threshold exceedance that continuously exceeds this threshold and is the criterion for abnormality determination are set to the threshold and initial value (100) of the previous screen, the filter creation screen 16a. In addition, on the detection condition setting screen 17a, the normal vibration waveform signal acquired when creating the filter CH1 described above, the output waveform signal after passing through the filter, and the amplitude waveform signal obtained by full-wave rectification (absolute value processing) of the normal vibration waveform signal are displayed on the display screen of the filter input, filter output (filtered signal), and amplitude, respectively. Next, all the filter coefficients calculated on the filter creation screen 16a are called up to create a filter coefficient file, and a coefficient file save confirmation dialog with save and cancel buttons is opened. This coefficient file save confirmation dialog determines whether to save or not, and when the cancel button is operated, a message indicating that saving is not possible is displayed, and awaits a change in the setting value or a button operation. When the save button is operated during the above-mentioned determination, the filter coefficient file is saved, and awaits a change in the setting value or a button operation.

[0076] When the abnormal waveform acquisition start button is operated on the detection condition setting screen 17a, the abnormal vibration waveform file and its maximum amplitude stored in the PC are read depending on the communication state set on the setting mode selection screen 11, i.e., when there is no communication, and these are displayed on the waveform selection screen that is opened at the same time. This screen has a cancel button, and it is possible to determine whether or not to cancel the selection of the abnormal vibration waveform on this screen, and in the case of canceling the selection, the setting value is changed or a button operation is waited for. In addition, when the optimal abnormal vibration waveform file is selected on the waveform selection screen, the abnormal vibration waveform signal is read from the selected abnormal vibration waveform file and displayed on the abnormal waveform display surface of the detection condition setting screen 17a, and the waveform selection screen is closed.

[0077] When the communication state is communication, the threshold value of the detection condition setting screen 17a is read, and a filter creation time abnormal vibration waveform acquisition setting command is created that has this threshold value and sets the type of inspection signal as a filtered signal, and this filter creation time abnormal vibration waveform acquisition setting command is transmitted to the AE device 1. As a result, the abnormal vibration waveform file and its maximum amplitude are transmitted from the AE device 1, and these are displayed on the waveform selection screen that is opened at the same time. When this abnormal vibration waveform acquisition is repeated and a stop button for abnormal vibration waveform acquisition is operated, an abnormal vibration waveform acquisition stop command is created and transmitted to the AE device 1, and acquisition of the abnormal vibration waveform is stopped.

[0078] In both cases of communication and non-communication, the abnormal vibration waveform file is displayed on the waveform selection screen together with its maximum amplitude. At this time, when the optimal abnormal vibration waveform file is selected on the screen, the abnormal vibration waveform signal is read from the selected abnormal vibration waveform file and displayed on the display surface of the filter input during abnormality of the detection condition setting screen 17a as shown in FIG. 31, and the waveform selection screen is closed. Next, the abnormal vibration waveform signal read from the selected abnormal vibration file is filtered, and the filtered signal and the amplitude waveform signal subjected to full-wave rectification (absolute value processing) are acquired and displayed on the filter output and amplitude display surfaces during abnormality of the detection condition setting screen 17a, respectively (at this time, since the filter input, i.e., the A / D conversion signal, is also attached to the abnormal vibration waveform signal, the A / D conversion signal is also displayed on the display surface of the filter input). In addition, a width consisting of the number of consecutive threshold overruns that continuously exceed the threshold of the trigger condition is calculated, and this width is displayed at the display position of the detection condition setting screen 17a.

[0079] Thereafter, the operator adjusts the threshold value of the trigger condition so that the width of the abnormal vibration waveform signal displayed on the display surface is equal to or greater than the target value of 100 on the detection condition setting screen 17a (see FIG. 32(a)). At the same time, the operator can adjust the width of the number of consecutive times the amplitude waveform signal at the time of abnormality exceeds the threshold value as shown in FIG. 32(b) by this adjustment, so that the operator can adjust the lower limit of the width of the number of consecutive times the threshold value is exceeded, which can remove the abnormal vibration waveform signal due to disturbance contained in the vibration amplitude waveform signal at the time of abnormality, while visually checking the width displayed on the detection condition setting screen 17a, thereby obtaining an optimal abnormal vibration waveform. When the filter CH2 is provided, the filter CH on the detection condition setting screen 17a is set to 2, and the threshold value and the lower limit are set in the same manner as described above. When the detection sensor CH2 is provided, the detection condition setting screen 17b (see FIG. 18) for the sensor CH2 is displayed, and the setting work described above is performed in the same manner, the threshold value and the lower limit for the detection sensor CH2 are set, and the operator waits for a change in the setting value or a button operation. At this time, if the width does not match the reference value, the back button on the detection condition setting screen 17b is operated, the previous filter creation screen 16a is displayed, and the setting is performed again on that screen.

[0080] When the Next button is operated on the detection condition setting screen 17a or 17b, a detection condition evaluation screen (filter CH for each condition, logical expression) 18 shown in FIG. 19 is displayed, and when two detection sensors are arranged, the operator sets the judgment output of the filter CH used for abnormality judgment according to the procedure displayed on the screen. At the same time, logical operation expressions of the judgment output of these filters are selected, and these are stored as four types of evaluation conditions for evaluating the detection conditions. After the evaluation conditions are set on the detection condition evaluation screen, when the Start Inspection button is operated on the detection condition evaluation screen 18, the evaluation conditions are read, and a detection condition evaluation setting command that has the evaluation conditions and sets the type of inspection signal to a filtered signal is created and transmitted to the AE device 1 (at this time, the machine device 2 repeats operations under each of the normal vibration waveform generation setting and the abnormal vibration waveform generation setting). As a result, the abnormal vibration waveform file and its maximum amplitude are transmitted from the AE device 1, and these are displayed on the waveform selection screen. When this abnormal vibration acquisition is repeated and the Stop Inspection button is operated, an inspection stop command is created and transmitted to the AE device 1. This stops the acquisition of abnormal vibration waveforms and waits for a change in the setting value or button operation. During this time, the operator can confirm that the normal vibration waveform signal is not judged to be abnormal or that an abnormality has been judged based on the presence or absence of an abnormal vibration waveform file on the waveform selection screen. If no judgment error occurs in the above-mentioned judgment as a result of this operation, the operator operates the next button on the detection condition evaluation screen 18.

[0081] When the Next button on the detection condition evaluation screen 18 is operated, a waveform recording condition setting screen (waveform signal name, thinning target signal name, frequency division number, trigger position) 19 shown in FIG. 20 is displayed. When any of the input items on this screen is changed, these input items are stored. After that, when the Save button on the waveform recording condition setting screen is operated, a recording condition save screen is displayed, and when the Save button on this save screen is operated, the setting values ​​of the entire screen, including the recording conditions on the waveform recording condition setting screen, are called up and saved in the PC as a setting file. Next, depending on the communication state set on the setting mode selection screen 11, that is, when there is no communication, the save screen is immediately closed and awaits a change in the recording conditions or a button operation. Also, when the communication state is communication, a transfer confirmation dialog (Yes, No, Cancel) is opened to confirm the transfer of the setting file to the AE device 1, and a transfer decision to the device is made. At this time, when the No button is operated, the transfer confirmation button is immediately closed and awaits a change in the recording conditions or a button operation. When the Yes button is pressed in the transfer confirmation dialog, the setting file is read, a save command is created, and sent to the AE device 1. At the same time, the transfer confirmation dialog is closed and the system waits for a change in the recording conditions or a button operation. During this time, if it becomes necessary to reset the setting values, the back button on the waveform recording condition setting screen 19 is pressed, the previous detection condition evaluation screen 18 is opened, and the resetting is performed on that screen.

[0082] When the completion button on the waveform recording condition setting screen 19 is operated, the saving of the setting file for the pass / fail judgment is confirmed, and all setting operations can be completed.

[0083] As described above, the setting screens displayed in accordance with the setting procedure for the setting values ​​required in the setting value setting method of the present invention include a basic setting screen 12 for setting the number of detection sensors and the sample rate detected by the detection sensors, a non-vibration gain setting screen 13 for setting the gain of the first and second variable amplifiers 4a and 4b that amplify a non-vibration waveform signal obtained from vibrations occurring around the object to be inspected while the machine 2 related to processing or assembly of the object to be inspected is stopped, and a maximum amplitude obtained from the non-vibration waveform signal, a normal vibration waveform signal or The display device is characterized by comprising: maximum amplitude acquisition screens 14a, 14b for acquiring normal / abnormal vibration waveform signal for setting the maximum amplitude of an abnormal vibration waveform signal acquired during abnormal processing or assembly; a gain adjustment screen 15 for setting a gain for adjusting the maximum amplitude of the vibration waveform signal; filter creation screens 16a, 16b, 16c, 16d for creating a normal vibration removal filter that subtracts a portion of the normal vibration waveform signal from the normal vibration waveform signal; and detection condition setting screens 17a, 17b for setting an amplitude threshold for an abnormality determination condition from the abnormal vibration waveform signal and a lower limit of a range consisting of the number of consecutive times the threshold is exceeded.

[0084] With this configuration, the operator can easily and without time loss perform the following tasks: setting the amplifier gain to adjust the maximum amplitude of the non-vibration waveform signal, the normal vibration waveform signal, and the abnormal vibration waveform signal; creating a normal vibration removal filter that subtracts a portion of the normal vibration waveform signal from the normal vibration waveform signal; and setting the amplitude threshold value for the abnormality determination condition and the lower limit of the consecutive number of times that the threshold value is exceeded from the abnormal vibration waveform signal, even if the operator does not understand the contents of each setting screen.

[0085] Each of the setting screens according to the setting value setting method of the present invention may display a guide for the setting value or a procedure for setting the setting value. In this case, even if the operator does not understand the setting contents of each screen, the operator can easily perform the setting work without losing time.

[0086] The setting item on gain setting screen 13 for acquiring maximum amplitude at no vibration according to the setting value setting method of the present invention is the gain of first and second variable amplifiers 4a and 4b, and the gain setting screen may have an acquire button for outputting a non-vibration waveform acquisition setting command, and may be configured to adjust the gain by repeating the steps of transmitting a non-vibration waveform acquisition setting including the gain, the sample rate and the number of sensors set on basic setting screen 12, and an A / D converted signal as the type of inspection signal, to AE device 1 and acquiring a non-vibration waveform signal from the AE device 1. In this case, the operator can transmit a setting value including a gain required to acquire a non-vibration waveform signal to AE device 1 and acquire a non-vibration waveform signal from the AE device 1 simply by operating the acquire button, and by repeating this process, the gain can be set so as to obtain an optimal non-vibration waveform signal.

[0087] The non-vibration gain setting screen 13 according to the set value setting method of the present invention may have a display surface capable of displaying a non-vibration waveform signal, and may be configured to acquire a predetermined number of non-vibration waveform signals by a non-vibration waveform acquisition setting command, and to separately display a file selection screen displaying the file names of these non-vibration waveform signals together with their respective maximum amplitudes, and may be configured to display a non-vibration waveform signal selected from this file selection screen on the display surface, and to set the maximum amplitude from the non-vibration waveform signal. In this case, the operator performing the setting operation does not need to provide a display screen for the non-vibration waveform signal separately from the non-vibration gain setting screen 13, and therefore does not need to repeatedly switch between the non-vibration gain setting screen 13 and display the display screen, and can set the gain on the non-vibration gain setting screen 13 without troublesome work.

[0088] The maximum amplitude acquisition screens 14a, 14b of the normal / abnormal vibration waveform signal according to the set value setting method of the present invention may have a normal vibration acquisition start button for outputting a normal vibration waveform acquisition setting command and a display surface for the normal vibration waveform signal or both the normal vibration waveform signal and the abnormal vibration waveform signal, and may be configured to transmit a vibration waveform acquisition setting command in which the type of the inspection signal is an A / D converted signal to the AE device 1, and when the normal vibration waveform signal or the normal vibration waveform signal and the abnormal vibration waveform signal are acquired from the vibration waveform inspection device, the normal vibration waveform signal or the normal vibration waveform signal and the abnormal vibration waveform signal are displayed on the display surface. In this case, the maximum amplitude acquisition screens 14a, 14b of the normal / abnormal vibration waveform signal do not need to have a separate display screen for displaying these vibration waveform signals, and therefore there is no need to switch to the display screen, and the optimal threshold value for acquiring the normal vibration waveform signal or the normal vibration waveform signal and the abnormal vibration waveform signal can be set on the maximum amplitude acquisition screens 14a, 14b without any troublesome work.

[0089] The filter creation screens 16a, 16b, 16c, and 16d of the present invention may have a display surface for displaying the normal vibration waveform signal, the filter characteristics, and the filter output waveform signal, respectively. In this case, it is not necessary to provide a display screen for displaying the normal vibration waveform signal, the filter characteristics, and the filter output separately from the filter creation screens 16a, 16b, 16c, and 16d, and therefore there is no need to switch to the display screen, and the normal vibration waveform signal, the filter characteristics, and the filter output waveform signal can be obtained on the filter creation screens 16a, 16b, 16c, and 16d without any troublesome work.

[0090] The setting items of the filter creation screens 16a, 16b, 16c, and 16d of the present invention are the gain for normal waveform acquisition and the type of filter, and the creation screens 16a, 16b, 16c, and 16d may have a normal waveform acquisition start button that outputs a normal vibration waveform acquisition setting command, and may be configured to transmit a normal vibration waveform acquisition setting having the gain of the screen and in which the inspection signal is an A / D converted signal to the AE device 1, adjust the gain by repeating the process of acquiring a normal vibration waveform signal from the AE device 1, and display the normal vibration waveform signal on the display surface. In this case, the operator can transmit a normal vibration waveform acquisition setting command having a gain required for acquiring a normal vibration waveform signal and in which the inspection signal is an A / D converted signal to the AE device 1 by simply operating the normal vibration waveform acquisition start button, acquire a normal vibration waveform signal from the AE device 1, and adjust the gain so as to obtain a normal vibration waveform signal optimal for filter creation.

[0091] The filter creation screens 16a, 16b, 16c, and 16d of the present invention may be configured to display two cursor lines related to a filter creation range on the normal vibration waveform signal displayed on the display screen, and to allow the positions of the cursor lines to be set arbitrarily. In this case, the operator can visually set a range in which a part of the normal vibration waveform signal is to be subtracted from the normal vibration waveform signal, and create filter coefficients from the normal vibration waveform signal in that range.

[0092] The setting items of the filter creation screens 16a, 16b, 16c, and 16d of the present invention are the data position and data size or cutoff frequency of the filter creation, and the creation screens 16a, 16b, 16c, and 16d may have a filter creation button for creating a filter, and may be configured to set either an inverse filter having a filter coefficient that subtracts a portion determined by the data position and data size from the normal vibration waveform signal, or a low-pass filter or a high-pass filter having a predetermined cutoff frequency together with the inverse filter. In this case, even if the operator does not understand the setting contents of the filter creation screens 16a, 16b, 16c, and 16d, the operator can create an inverse filter having a filter coefficient that subtracts a portion of the normal vibration waveform signal that is an obstacle to the detection of the abnormal vibration waveform by simply setting the data position and data size and adjusting the cursor position on the normal vibration waveform signal displayed on the display screen, and then operating the filter creation button, and can also create another additional filter for the portion that cannot be removed by the filter.

[0093] The setting items on the detection condition setting screens 17a and 17b of the present invention are a threshold value of the trigger condition and a lower limit that is the standard for determining an abnormality based on the number of consecutive times the threshold is exceeded, and the detection condition setting screens 17a and 17b have an abnormal vibration acquisition start button that outputs an abnormal vibration waveform acquisition setting command, and send the abnormal vibration acquisition setting command that has the threshold value and lower limit and that uses the inspection signal as a filtered signal to the AE device 1, and when an abnormal vibration waveform signal is acquired from the AE device 1, the abnormal vibration waveform signal and its full-wave rectified waveform signal are displayed on the display screen, and the number of consecutive times the amplitude of the full-wave rectified waveform signal exceeds the threshold is calculated and displayed on display unit 7, thereby adjusting the threshold value and lower limit of the trigger condition. In this case, even if the operator does not understand the settings on detection condition setting screens 17a and 17b, the operator can simply operate the start button for abnormal vibration acquisition, acquire an abnormal vibration waveform signal, and repeat the process of setting the threshold and lower limit of the trigger condition, thereby adjusting the threshold and lower limit so that the width defined by the number of consecutive times that the amplitude of the full-wave rectified waveform signal of the abnormal vibration waveform signal continuously exceeds the threshold becomes the desired width, thereby acquiring an optimal abnormal vibration waveform.

[0094] The setting screen displayed according to the setting procedure of the necessary setting values ​​of the present invention has a detection condition evaluation screen 18 displayed following the detection condition setting screens 17a and 17b, and the detection condition evaluation screen 18 may be configured to allow the operator to arbitrarily select a filter for filtering the vibration waveform signal detected by the detection sensors CH1 and CH2 and to arbitrarily select a logical operation expression for the judgment output related to the filter. In this case, when a plurality of detection sensors CH1 and CH2 are arranged, the operator can combine the abnormality judgment results for each filter connected to these detection sensors CH1 and CH2 to enable the detection of only abnormal vibration waveform signals caused by deformation or destruction occurring in the inspection object.

[0095] The setting screen displayed according to the setting procedure of the necessary setting values ​​of the present invention may have a waveform record setting screen 19 displayed following the detection condition evaluation screen 18, and the waveform record setting screen 19 may have a save button that outputs a save command, and the setting values ​​of the input items of the setting screen, such as the signal name, the thinning signal name, the frequency division number, and the trigger position, may be stored as a detection condition setting file by this save command. In this case, the operator can store the vibration waveform signal obtained when setting the various setting values ​​not only in the AE device 1 but also in a PC connected to the device by simply operating the save button.

[0096] The present invention is also characterized by a PC that is connected to the AE device 1 and used to implement any of the configurations of the set value setting method described above. With this configuration, there is only one PC, so not only is there no need to provide the AE device 1 with a set value setting program for executing the set value setting method, but there is also no need to provide a storage unit 8 with a large storage capacity. Also, the display unit 7 can be a simple indicator that can display the completion of setting and perform pass / fail judgment, etc., making it possible to provide an inexpensive AE device 1 that can be installed in large numbers in a factory.

[0097] Furthermore, the present invention is characterized in that it is a set value setting program that is loaded into a PC so as to function as the above-mentioned PC. With this set value setting program, an operator can easily set predetermined set values ​​without having special knowledge of set value setting work, simply by transferring the set value setting program to a PC located near the AE device 1 in a factory.

[0098] In addition, the method for setting the settings of the vibration waveform inspection device according to the embodiment of the present invention is configured such that when the previous setting screen is displayed by returning to the previous setting screen in sequence, the setting values ​​in the setting file created in each setting screen before returning to the screen are canceled, but these setting values ​​may be left stored in the setting file. In this case, when the previous setting screen is displayed, it is not necessary to re-enter setting values ​​that do not need to be corrected. In addition, the vibration waveform inspection device according to the embodiment of the present invention stores a setting value setting program constituting the setting value setting method in a PC, but the PC may be a part of the vibration waveform device, or the setting program may be built into the device without using a PC. Furthermore, the specific configuration of each part of the present invention is not limited to the above-mentioned embodiment and example, and various modifications are possible within the scope of the present invention. [Explanation of symbols]

[0099] 1...AE inspection equipment, 2...Mechanical equipment, CH1, CH2: Detection sensor, 4a...first variable amplifier section, 4b...second variable amplifier section, 5...A / D conversion section, 6...Control section, 7...Display section, 7a…Lamps, 8...Storage section, 9…External memory unit, 10...I / O for connecting external terminals, 11...Setting mode selection screen, 12...Basic settings screen, 13...Gain setting screen for obtaining maximum amplitude without vibration, 14a, 14b... Gain setting screen for acquiring maximum amplitude of the sensor; 15…Gain setting screen for gain adjustment, 16a, 16b, 16c, 16d...Filter coefficient creation screen for filter creation, 17a, 17b...sensor detection condition setting screen, 18...Detection condition evaluation screen, 19...Waveform recording condition setting screen, PC: Personal computer

Claims

1. A setting value setting method for a vibration waveform inspection device having a detection sensor that detects vibrations occurring around or on an object to be inspected and an amplifier unit that amplifies a vibration waveform signal detected by the detection sensor, and configured to create a digital filter that subtracts a portion of the vibration waveform signal detected when the object to be inspected is processed or assembled normally, and to detect an abnormal vibration waveform signal by removing disturbance signals that interfere with the detection of abnormal vibration waveforms using the digital filter, wherein the setting value setting method for a vibration waveform inspection device is characterized in that a setting screen is displayed in accordance with a setting work order for setting values ​​that need to be set, and predetermined setting values ​​are set for setting items on the setting screen, and when the setting screen has an acquire button for acquiring a vibration waveform signal, a setting command including the setting value and a type of inspection signal is sent to the vibration waveform inspection device, and the process of acquiring a vibration waveform signal from the vibration waveform inspection device is repeated to adjust the setting value or set a setting value for another setting item from the vibration waveform signal.

2. 2. The method for setting settings for a vibration waveform inspection device according to claim 1, wherein the setting screens displayed in accordance with the setting work order of the setting values ​​that need to be set include a basic setting screen for setting the number of detection sensors and the sample rate detected by the detection sensors, a gain setting screen for acquiring maximum amplitude when no vibration is present, for setting the gain of an amplifier unit that amplifies a non-vibration waveform signal acquired from vibrations occurring around the inspection object while a machine device related to processing or assembly of the inspection object is stopped, and the maximum amplitude acquired from the non-vibration waveform signal, a gain setting screen for acquiring maximum amplitude of a normal / abnormal vibration waveform signal, for setting the maximum amplitude of a normal vibration waveform signal acquired when the inspection object is processed or assembled normally, or an abnormal vibration waveform signal acquired when the inspection object is processed or assembled abnormally, a gain setting screen for adjusting the maximum amplitude of the vibration waveform signal, a filter coefficient creation screen for creating a normal vibration removal filter that subtracts a portion of the normal vibration waveform signal from the normal vibration waveform signal, and a detection condition setting screen for setting an amplitude threshold value of an abnormality determination condition and a lower limit of the number of consecutive times that the threshold value is exceeded from the abnormal vibration waveform signal.

3. 3. The method for setting values ​​for a vibration waveform inspection device according to claim 2, wherein each of the setting screens displays a guide for the set values ​​or a procedure for setting the set values.

4. The setting item on the gain setting screen for acquiring maximum amplitude when no vibration is present is the gain of the amplifier section, the gain setting screen has an acquisition button that outputs a non-vibration waveform acquisition setting command, and the gain, the sample rate and the number of sensors set on the basic setting screen are included, and a non-vibration waveform acquisition setting in which the type of inspection signal is an A / D converted signal is sent to a vibration waveform inspection device, and the process of acquiring a non-vibration waveform signal from the vibration waveform inspection device is repeated to adjust the gain.

5. The gain setting screen for obtaining maximum amplitude without vibration has a display surface capable of displaying a non-vibration waveform signal, obtains a predetermined number of non-vibration waveform signals by a non-vibration waveform acquisition setting command, and is configured to separately display a file selection screen that displays the file names of these non-vibration waveform signals together with their respective maximum amplitudes, and a non-vibration waveform signal selected from this file selection screen is displayed on the display surface, and the maximum amplitude is set from the non-vibration waveform signal, characterized in that the setting value setting method for a vibration waveform inspection device described in claim 4.

6. The setting value setting method for a vibration waveform inspection device described in claim 2, characterized in that the gain setting screen for acquiring the maximum amplitude of the normal and abnormal vibration waveform signals has a normal vibration acquisition start button that outputs a normal vibration waveform acquisition setting command and a display screen for a normal vibration waveform signal or a display screen for both the normal vibration waveform signal and an abnormal vibration waveform signal, and a vibration waveform acquisition setting command in which the type of inspection signal is an A / D converted signal is sent to the vibration waveform inspection device, and when the normal vibration waveform signal or the normal signal and the abnormal vibration waveform signal are acquired from the vibration waveform inspection device, the normal vibration waveform signal or the normal signal and the abnormal vibration waveform signal are displayed on the display screen.

7. 3. The method for setting settings for a vibration waveform inspection device according to claim 2, wherein the filter coefficient creation screen for creating a filter has a display surface for displaying a normal vibration waveform signal, a filter characteristic, and a filter output waveform signal, respectively.

8. The setting items on the filter coefficient creation screen for filter creation are a gain for normal waveform acquisition and a type of filter, the creation screen has a normal waveform acquisition start button that outputs a normal vibration waveform acquisition setting command, the normal vibration waveform acquisition setting command having a gain on the same screen and an A / D converted signal as the type of the inspection signal is sent to a vibration waveform inspection device, the gain is adjusted by repeating the process of acquiring a normal vibration waveform signal from the vibration waveform inspection device, and the normal vibration waveform signal is displayed on a display screen.

9. 9. The method for setting setting values ​​for a vibration waveform inspection device according to claim 8, wherein the filter coefficient creation screen for creating a filter displays two cursor lines relating to a filter creation range on a normal vibration waveform signal displayed on a display screen, and the positions of the cursor lines can be set arbitrarily.

10. 3. The method for setting settings for a vibration waveform inspection device as described in claim 2, characterized in that the setting items on the filter coefficient creation screen for filter creation are the data position and data size or cutoff frequency for filter creation, the creation screen has a filter creation button for creating a filter, and the creation button is configured to set either an inverse filter having a filter coefficient that subtracts a portion determined by the data position and data size from the normal vibration waveform signal, or a low-pass filter or a high-pass filter having a predetermined cutoff frequency together with the inverse filter.

11. 3. The method for setting settings for a vibration waveform inspection device according to claim 2, wherein the setting items on the detection condition setting screen are a threshold value of a trigger condition and a lower limit that is a criterion for determining an abnormality based on the number of consecutive times the threshold is exceeded, the detection condition setting screen has an abnormal vibration acquisition start button that outputs an abnormal vibration waveform acquisition setting command, the abnormal vibration acquisition setting command having the threshold value and lower limit and which generates an inspection signal as a filtered signal is sent to the vibration waveform inspection device, and when an abnormal vibration waveform signal is acquired from the vibration waveform inspection device, the abnormal vibration waveform signal and its full-wave rectified waveform signal are displayed on a display screen, and the number of consecutive times the amplitude of the full-wave rectified waveform signal exceeds the threshold is calculated and displayed on the display unit, thereby adjusting the threshold value and lower limit of the trigger condition.

12. The setting value setting method for a vibration waveform inspection device described in claim 2, characterized in that the setting screen displayed in accordance with the setting work order of the setting values ​​that need to be set has a detection condition evaluation screen displayed subsequent to the detection condition setting screen, and the detection condition evaluation screen is configured to allow arbitrary selection of a filter that filters the vibration waveform signal detected by the detection sensor and arbitrary selection of a logical operation formula for the judgment output related to each filter.

13. The setting value setting method for a vibration waveform inspection device as described in claim 2, characterized in that the setting screen displayed in accordance with the setting work order of the setting values ​​that need to be set has a waveform recording setting screen displayed following the detection condition evaluation screen, and the waveform recording setting screen has a save button that outputs a save command, and this save command causes the setting values ​​of the signal name, thinning signal name, division number, and trigger position of the input items on the setting screen to be stored as a detection condition pass / fail judgment setting file.

14. A computer used in connection with a vibration waveform inspection device to carry out the set value setting method according to any one of claims 1 to 13.

15. A setting value setting program, which is read into a computer so as to cause the computer to function as the computer according to claim 14.

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