JP2018173333A - Fault diagnosis system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fault diagnosis system capable of suppressing degradation in the accuracy of diagnostic processing.SOLUTION: A fault diagnosis system includes: sensors which are respectively provided for a plurality of diagnosis target devices and detect diagnosis target information of respective diagnosis target devices; a diagnosis target information acquisition unit 214 that is provided for the plurality of diagnosis target devices, is connected to each of the sensors, and obtains the diagnosis target information detected by the sensors; an abnormality determination unit 216 that determines whether or not an abnormality has occurred in the diagnosis target devices on the basis of the diagnosis target information obtained by the diagnosis target information acquisition unit 214; and a diagnosis setting information setting unit 212 that sets a wiring distance between each of the sensors and the diagnosis target information acquisition unit 214. The abnormality determination unit 216 performs different processing for the diagnosis target information detected by each of the sensors according to the wiring distance of each of the sensors.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a failure diagnosis system.

  For example, failure diagnosis systems for detecting failures in devices such as motors, gear motors, and gear boxes are known. A failure diagnosis system generally includes a sensor arranged in a diagnosis target device and a processing unit that performs a diagnosis process for determining whether or not an abnormality has occurred in the diagnosis target device based on information from the sensor. Conventionally, for example, a fault diagnosis system as described in Patent Document 1 has been proposed.

JP 2003-88178 A

  In a failure diagnosis system, a plurality of sensors may be connected to one processing unit. In this case, the wiring distance between the sensor and the processing unit may be different for each sensor. This may cause a decrease in accuracy of the diagnostic process.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a failure diagnosis system capable of suppressing a decrease in accuracy of diagnosis processing.

  In order to solve the above problems, a failure diagnosis system according to an aspect of the present invention includes a sensor that is provided in each of a plurality of diagnosis target devices and detects diagnosis target information of a corresponding diagnosis target device, and a plurality of diagnosis targets Diagnosis based on diagnostic object information acquisition means that is provided for the apparatus, is connected to each sensor by wiring and acquires diagnosis object information detected by the sensor, and diagnostic object information acquired by the diagnosis object information acquisition means An abnormality determination unit that determines whether an abnormality has occurred in the target device, and a wiring information setting unit that sets a wiring distance between each sensor and the diagnosis target information acquisition unit. The abnormality determination unit performs different processing on the diagnosis target information detected by each sensor according to the wiring distance of each sensor.

  Note that any combination of the above-described constituent elements, and those obtained by replacing the constituent elements and expressions of the present invention with each other among methods, apparatuses, systems, etc. are also effective as an aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, the failure diagnosis system which can suppress the fall of the precision of a diagnostic process can be provided.

It is a schematic diagram which shows the structure of the failure diagnosis system which concerns on embodiment. It is a block diagram which shows the function and structure of the processing unit of FIG. It is a block diagram which shows the function and structure of the terminal device of FIG. It is a figure which shows a diagnostic setting screen. It is a figure which shows a state monitoring screen. It is a figure which shows a state monitoring screen. It is a figure which shows a state monitoring screen. It is a figure which shows a diagnostic result screen. It is a figure which shows a diagnostic trend screen. It is a figure which shows a facility layout setting screen. It is a figure which shows an arrangement | positioning setting screen. It is a figure which shows a processing unit matching screen. It is a figure which shows a sensor matching screen. It is a figure which shows the facility layout setting screen which concerns on a modification. It is a figure which shows the arrangement | positioning setting screen which concerns on a modification.

  Hereinafter, the same or equivalent components, members, and processes shown in the drawings are denoted by the same reference numerals, and repeated descriptions are appropriately omitted. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in the drawings, some of the members that are not important for describing the embodiment are omitted.

  FIG. 1 is a schematic diagram illustrating a configuration of a failure diagnosis system 10 according to an embodiment. The failure diagnosis system 10 detects abnormalities of the gear motors 2a to 2f, which are collectively referred to as the gear motor 2, and supports the analysis thereof. The failure diagnosis system 10 may be used to detect an abnormality of a device to be diagnosed other than a gear motor such as a chain sprocket, an injection molding machine, a machine tool, or an industrial robot.

  The failure diagnosis system 10 includes sensors 100 a to 100 g collectively referred to as a sensor 100, processing units 200 a to 200 c collectively referred to as a processing unit 200, and a terminal device 300. The sensors 100a to 100g and the processing unit 200 are connected by cables 400a to 400g collectively referred to as a cable 400. The processing unit 200 and the terminal device 300 are connected by wire or wireless.

  Sensors 100a to 100e are attached to gear motors 2a to 2e, respectively. The sensors 100f and 100g are attached to the gear motor 2f. The number of sensors 100 attached to the gear motor 2 is not particularly limited.

  The sensors 100a and 100b are connected to the processing units 200a and 200b, respectively. The sensors 100c to 100g are connected to the processing unit 200c. The number of sensors 100 connected to each processing unit 200 is not particularly limited as long as it is within the range of the number of sensor connection channels of each processing unit 200.

  The sensor 100 is a vibration sensor in the present embodiment, detects vibration generated in the attached (that is, corresponding) gear motor 2, and generates vibration information (diagnosis target information) indicating the magnitude of the vibration. To the processing unit 200. As for the mounting position of the sensor 100 in the gear motor 2, a position suitable for abnormality detection may be determined by experiment, simulation, or the like.

  The processing unit 200 repeatedly executes “diagnosis processing” for determining whether an abnormality has occurred in the gear motor 2 based on the vibration information sent from each sensor 100, and transmits the determination result to the terminal device 300. Further, the processing unit 200 transmits the vibration information transmitted from the sensor 100 to the terminal device 300 in response to the “transmission request” of vibration information from the terminal device 300.

  The terminal device 300 is an information processing device operated by a user. The terminal device 300 displays various screens on a predetermined display unit. For example, the terminal device 300 displays a screen indicating the determination result of the diagnostic processing by the processing unit 200 on the display unit. The user can know that an abnormality has occurred in the gear motor 2 by checking the determination result displayed on the display unit.

  FIG. 2 is a block diagram illustrating the function and configuration of the processing unit 200. Each block shown here can be realized in hardware by an element and a mechanical device including a computer CPU and memory, and in software by a computer program or the like. It depicts the functional blocks that are realized. Therefore, those skilled in the art will understand that these functional blocks can be realized in various forms by a combination of hardware and software. The same applies to the subsequent block diagrams.

  The processing unit 200 includes a communication unit 202, a data processing unit 204, and a storage unit 206.

  The communication unit 202 executes communication processing with the sensor 100 and the terminal device 300 according to various communication protocols. For example, the data processing unit 204 transmits and receives data to and from the terminal device 300 via the communication unit 202.

  The storage unit 206 is a storage area for storing data that is referred to and updated by the data processing unit 204. The storage unit 206 includes a diagnosis setting information holding unit 230. The diagnosis setting information holding unit 230 holds setting information related to diagnosis processing (hereinafter referred to as “diagnosis setting information”). The diagnosis setting information is various kinds of setting information input to a diagnosis setting screen 500 of FIG. 4 to be described later, and includes, for example, a diagnosis processing interval, a sampling frequency, a measurement time, a cable length, and the like.

  The data processing unit 204 executes various data processing based on the data acquired from the communication unit 202. The data processing unit 204 includes a diagnosis setting information acquisition unit 210, a diagnosis setting information setting unit 212, a diagnosis target information acquisition unit 214, an abnormality determination unit 216, a determination result transmission unit 218, and a diagnosis target information transmission unit 220. ,including.

  The diagnosis setting information acquisition unit 210 acquires diagnosis setting information transmitted from the terminal device 300 and input to a diagnosis setting screen 500 shown in FIG. 4 to be described later.

  The diagnosis setting information setting unit 212 sets the diagnosis setting information acquired by the diagnosis setting information acquisition unit 210, that is, records it in the diagnosis setting information holding unit 230.

  The diagnosis target information acquisition unit 214 acquires vibration information from each sensor 100 at a set sampling frequency and for a set measurement time at each set diagnosis processing interval.

  The abnormality determination unit 216 includes a first preprocessing unit 222, a second preprocessing unit 224, and an abnormality determination processing unit 226. Here, a plurality of sensors 100 may be connected to one processing unit 200 as in the processing unit 200c. In this case, the length of the cable 400 that connects the sensor 100 and the processing unit 200 may be different for each sensor 100. On the other hand, the longer the cable 400 is, the more noise rides on the vibration information flowing through the cable 400, and the longer the cable 400 is, the more the vibration information flowing through the cable 400 is attenuated. Therefore, if the length of the cable 400 is different for each sensor 100, the noise on the vibration information and the attenuation amount of the vibration information are different for each sensor 100. This may reduce the accuracy of the diagnostic process. Therefore, the abnormality determination unit 216 of the present embodiment performs filter processing and correction processing on the vibration information by the first pre-processing unit 222 and the second pre-processing unit 224 as described later, so that the cable 400 is provided for each sensor 100. Even if the lengths of these are different, relatively high diagnostic processing accuracy is realized.

  The first pre-processing unit 222 and the second pre-processing unit 224 correspond to the wiring distance between each sensor 100 and the processing unit 200, that is, the length of the cable (wiring) 400 that connects each sensor 100 and the processing unit 200. Accordingly, different processing is performed on the vibration information acquired from each sensor 100. In the present embodiment, the first pre-processing unit 222 and the second pre-processing unit 224 have a predetermined length (hereinafter also referred to as “cable length”) of the cable 400 that connects each sensor 100 and the processing unit 200. Different processing is performed on the vibration information acquired from each sensor 100 when the length is longer than the threshold value, that is, when the cable 400 is relatively long, and when the cable length is shorter than the length threshold value, that is, when the cable 400 is relatively short. Do.

  The first pre-processing unit 222 performs filter processing on the vibration information. The filter process is, for example, a low-pass filter process. For example, when the cable length is greater than or equal to the length threshold, the first pre-processing unit 222 performs a filter process with a larger attenuation than when the cable length is less than the length threshold. For example, when the cable length is equal to or longer than the length threshold, the first pre-processing unit 222 performs a filtering process with a wider filter frequency band than when the cable length is less than the length threshold. Further, for example, the first pre-processing unit 222 executes the filter process when the cable length is equal to or longer than the length threshold, and does not execute the filter process when the cable length is less than the length threshold, that is, the cable length is less than the length threshold. In the case of the above, it is possible to execute a filtering process in which the width of the filter frequency band is substantially zero. The first pre-processing unit 222 reduces the noise difference for each piece of vibration information.

  The second preprocessing unit 224 performs correction processing for amplifying vibration information. For example, the second pre-processing unit 224 performs a correction process in which the amplification gain is increased when the cable length is equal to or greater than the length threshold than when the cable length is less than the length threshold. Further, for example, the second pre-processing unit 224 executes correction processing when the cable length is equal to or longer than the length threshold, and does not execute correction processing when the cable length is less than the length threshold, that is, the cable length is less than the length threshold. In this case, correction processing with an amplification gain of 1 may be performed. The second pre-processing unit 224 relaxes the difference in attenuation amount for each vibration information.

  The abnormality determination processing unit 226 determines whether an abnormality has occurred in the gear motor 2 corresponding to the sensor 100 that has detected the vibration information, based on the vibration information subjected to the filtering process and the correction process. Hereinafter, the determination by the abnormality determination processing unit 226 is referred to as “abnormal determination”. In the present embodiment, the abnormality determination processing unit 226 determines an abnormality using the diagnosis method set in the diagnosis setting information.

  When “peak value diagnosis” is set as the diagnosis method, the abnormality determination processing unit 226 determines abnormality based on the magnitude of the peak value of vibration indicated by the vibration information. The abnormality determination processing unit 226 determines that an abnormality has occurred particularly when the peak value exceeds the abnormality threshold.

  When “effective value diagnosis” is set as the diagnosis method, the abnormality determination processing unit 226 determines abnormality based on the magnitude of the effective value of vibration indicated by the vibration information. In particular, the abnormality determination processing unit 226 determines that an abnormality has occurred when the magnitude of the effective value exceeds the abnormality threshold.

  When “FFT diagnosis” is set as the diagnosis method, the abnormality determination processing unit 226 performs FFT (Fast Fourier Transform) on the vibration waveform based on the vibration information, and among the vibration components of each frequency obtained as a result thereof An abnormality is determined based on the magnitude of the vibration component of a specific frequency or a range of frequencies. The abnormality determination processing unit 226 determines that an abnormality has occurred particularly when the magnitude of the target vibration component exceeds the abnormality threshold.

  When “H-FFT diagnosis” is set as the diagnosis method, the abnormality determination processing unit 226 performs FFT on the envelope of the vibration waveform based on the vibration information, and among the vibration components of each frequency obtained as a result, An abnormality is determined based on the magnitude of the vibration component of a specific frequency or a range of frequencies. The abnormality determination processing unit 226 determines that an abnormality has occurred particularly when the magnitude of the target vibration component exceeds the abnormality threshold.

  Hereinafter, a value extracted from vibration information for abnormality determination by the abnormality determination processing unit 226, that is, a peak value in peak value diagnosis, an effective value in effective value diagnosis, a specific frequency in FFT diagnosis or H-FFT diagnosis, or The magnitude of the vibration component of the frequency in the range is called “evaluation value”.

  The determination result transmission unit 218 displays the determination result by the abnormality determination unit 216 together with the evaluation value, the sensor connection channel to which the sensor 100 that has detected the vibration information that is the basis of the evaluation value is connected, and the abnormality determination date and time. It transmits to the terminal device 300.

  The diagnosis target information transmission unit 220 receives a vibration information transmission request from the terminal device 300. The diagnosis target information transmission unit 220 transmits the vibration information acquired by the diagnosis target information acquisition unit 214 after receiving the transmission request to the terminal device 300.

  FIG. 3 is a block diagram illustrating functions and configurations of the terminal device 300. The terminal device 300 includes a communication unit 302, a U / I (user interface) unit 304, a data processing unit 306, and a storage unit 308.

  The communication unit 302 executes communication processing with the processing unit 200 according to various communication protocols. For example, the data processing unit 306 transmits and receives data to and from the processing unit 200 via the communication unit 302.

  The U / I unit 304 receives an operation input by the user, and displays various screens on the display unit in response to an instruction from the data processing unit 306.

  The storage unit 308 is a storage area for storing data that is referred to and updated by the data processing unit 306. The storage unit 308 includes a layout holding unit 330, an arrangement information holding unit 332, a processing unit association holding unit 334, a sensor association holding unit 336, and an evaluation value holding unit 338.

  The data processing unit 306 executes various data processing based on the data acquired from the communication unit 302 and the U / I unit 304. The data processing unit 306 includes a determination result acquisition unit 310, a screen display control unit 312, a diagnosis setting information transmission unit 314, a layout acquisition unit 315, a layout setting unit 316, an arrangement setting unit 318, and an association setting unit. 320, a diagnosis target information request unit 322, and a diagnosis target information acquisition unit 328.

  The screen display control unit 312 displays various screens on the display unit. In particular, the screen display control unit 312 includes a diagnosis setting screen 500, a state monitoring screen 520, a diagnosis result screen 540, a diagnosis trend screen 550, a facility layout setting screen 560, an arrangement setting screen 590, a processing unit association screen 570, and a sensor association screen. 580 is displayed on the display unit. 4-13 show these screens. The configuration of the terminal device 300 will be described with reference to FIGS. 4 to 13 in addition to FIG.

  FIG. 4 shows a diagnosis setting screen 500. The diagnosis setting screen 500 includes a processing unit area 501, a sensor area 502, a read button 503, and a send button 504. The processing unit area 501 includes a processing unit number column 505, a processing unit name column 506, an IP (Internet Protocol) address column 507, and a port number column 508.

  In the processing unit number column 505, an identification number for uniquely identifying the processing unit 200 is selected. In the present embodiment, in the processing unit number column 505, any number from 1 to 16 can be selected. That is, in the present embodiment, a maximum of 16 processing units 200 can be managed by one terminal device 300.

  In the processing unit name column 506, a name for identifying the processing unit 200 is input. In the IP address column 507, an IP address assigned to or to be assigned to the processing unit 200 is input. In the port number column 508, a port number that the processing unit 200 opens for receiving a transmission request, transmitting vibration information, or the like is input.

  The sensor area 502 includes a display channel field 509, a sensor name field 510, a measurement control setting area 511, a cable setting area 512, and a diagnostic method setting area 513. In the display channel column 509, a connection channel to which the sensor 100 to be set for diagnosis is connected is selected. In the display channel column 509, any number from 1 to 12 can be selected. That is, in the present embodiment, 12 sensors 100 can be connected to each processing unit 200. In the sensor name column 510, a name for identifying the sensor 100 is input. Then, in the measurement control setting area 511, the cable setting area 512, and the diagnosis method setting area 513, setting input related to the sensor 100 specified from the information input in the display channel column 509 and the sensor name field 510 is performed.

  The measurement control setting area 511 includes a diagnostic processing interval 514, a sampling frequency 515, and a measurement interval 516. In the diagnostic processing interval 514, an interval for executing the diagnostic processing is input. A frequency at which the processing unit 200 acquires vibration information transmitted from the sensor 100 is input to the sampling frequency 515. In the measurement interval 516, the time for the diagnosis target information acquisition unit 214 to acquire vibration information in one diagnosis process is input. In other words, the measurement interval 516 is input with how much vibration information is used for one diagnosis process.

  The cable setting area 512 includes a cable length 517, a cable type 518, and a cable diameter 519. In the cable length 517, the cable length of the cable 400 is input. In the cable type 518, the type of the cable 400 is selected. In the cable diameter 519, the diameter of the cable 400 is input. In this embodiment, when the cable type 518 is selected, the cable diameter 519 is automatically input. Here, it is assumed that the cable type and the cable diameter can be set for each sensor 100. However, in general, the cables connected to one processing unit 200 are often prepared. The cable diameter may be set.

  In the diagnosis method setting area 513, a diagnosis method for abnormality determination by the processing unit 200 is set. In the present embodiment, a diagnosis method can be selected from four types of peak value diagnosis, effective value diagnosis, FFT diagnosis, and H-FFT diagnosis. Multiple diagnostic methods may be selected. In the example of FIG. 4, the peak value diagnosis is selected. In the diagnosis method setting area 513, an abnormality threshold value for abnormality determination is set.

  The diagnostic setting information transmission unit 314 records the diagnostic setting information input to the diagnostic setting screen 500 in the storage unit 308 and transmits it to the processing unit 200. Specifically, when the transmission button 504 of the diagnosis setting screen 500 is pressed, the diagnosis setting information transmission unit 314 displays the diagnosis setting information input in the diagnosis setting screen 500 in the No of the processing unit No column 505. To the processing unit 200. As the diagnostic setting information, the information set and input in the measurement control setting area 511, the cable setting area 512, and the diagnostic method setting area 513 is specified from the information input in the display channel field 509 and the sensor name field 510. Is sent as setting information. However, the cable length is not a numerical value input in the cable length 517, but information indicating whether the cable length is greater than or equal to the length threshold or less than the length threshold. The numerical value of the cable length itself may be transmitted, and the processing unit 200 may determine whether the cable length is greater than or equal to the length threshold or less than the length threshold.

  When the read button 503 is pressed while the processing unit number column 505 is selected, the diagnostic setting information is read from the corresponding processing unit 200 and displayed in the processing unit area 501. Further, when the read button 503 is pressed while the display channel column 509 is also selected, diagnostic setting information regarding the corresponding sensor 100 is displayed in the sensor area 502.

  The processing unit 200 executes a diagnosis process according to the diagnosis setting information input on the diagnosis setting screen 500. The determination result acquisition unit 310 acquires a determination result, an evaluation value, a connection channel, and an abnormality determination date / time transmitted from the processing unit 200 that has executed the diagnosis process. The determination result acquisition unit 310 records the acquired determination result, evaluation value, connection channel, and abnormality determination date and time in the evaluation value holding unit 338 together with the processing unit No. of the processing unit 200 of the transmission source.

  FIG. 5 shows a state monitoring screen 520. The state monitoring screen 520 includes an arrangement screen display area 521. Here, a room with a facility is shown in the arrangement screen display area 521. This room is divided into four spaces, a first space 523, a second space 524, a third space 525, and a fourth space 526, by a passage 522.

  In the second space 524, a belt conveyor image 527 showing a belt conveyor, a gear motor image 528a showing a gear motor 2a for driving the belt conveyor, a sensor image 529a showing a sensor 100a, and a processing unit image 530a showing a processing unit 200a , Is arranged.

  In the third space 525, a belt conveyor image 531 showing a belt conveyor, a gear motor image 528b showing a gear motor 2b for driving the belt conveyor, a sensor image 529b showing a sensor 100b, and a processing unit image 530b showing a processing unit 200b, , Is arranged.

  In the fourth space 526, an image of a belt conveyor image 532 showing a belt conveyor, gear motor images 528c to 528f showing gear motors 2c to 2f for driving the belt conveyor, sensor images 529c to 529g showing sensors 100c to 100g, A processing unit image 530c showing the processing unit 200c is arranged.

  The facility layout in the layout screen display area 521 is created on a facility layout setting screen 560 described later. A gear motor image 528, a sensor image 529, and a processing unit image 530 disposed on the facility layout are disposed in a layout setting described later. This is arranged on the screen 590. The gear motor image 528, the sensor image 529, and the processing unit image 530 are arranged on the facility layout in a form simulating the arrangement of the actual gear motor 2, the sensor 100, and the processing unit 200. The sensor image 529 is arranged on the facility layout in a form that also imitates the attachment position.

  On the state monitoring screen 520, based on the determination result acquired by the determination result acquisition unit 310, the gear motor 2 that is determined to be abnormal can be distinguished from the gear motor 2 that is not determined to be abnormal. Inform. In the present embodiment, a sensor image 529 of a sensor 100 (hereinafter referred to as “abnormality detection sensor”) that has detected vibration information that is a basis for determining that an abnormality has occurred is displayed as another sensor 100 (hereinafter referred to as an “anomaly detection sensor”). , Which is referred to as a “non-abnormality detection sensor”) in such a manner that it can be distinguished from the sensor image 529, it is notified that an abnormality has occurred in the corresponding gear motor 2. For example, the sensor image 529 of the abnormality detection sensor may be displayed in a different color from the sensor image of the non-abnormality detection sensor.

  For example, when the sensor 100f is an abnormality detection sensor and the other sensor 100 is a non-abnormality detection sensor, the sensor image 529f of the sensor 100f may be displayed in red, and the sensor image 529 of the other sensor 100 may be displayed in blue. Thereby, it can be grasped at a glance that an abnormality has occurred in the gear motor 2f to which the sensor 100f is attached. Note that it is possible to grasp that there is a high possibility that an abnormality has occurred on the output shaft side to which the sensor 100f is attached by displaying the sensor image 529f in red and the sensor image 529g in blue.

  In the state monitoring screen 520, a processing unit image 530 of a processing unit 200 (hereinafter referred to as “abnormality detection processing unit”) to which at least one abnormality detection sensor is connected is displayed as a process in which no abnormality detection sensor is connected. The unit 200 (hereinafter referred to as “non-abnormality detection processing unit”) is displayed in a manner that can be distinguished from the processing unit image 530. In the present embodiment, the processing unit image 530 of the abnormality detection processing unit is displayed in red, and the processing unit image 530 of the non-abnormality detection processing unit is displayed in green. In addition, the word “abnormal” and the sensor name of the abnormality detection sensor are displayed in the vicinity of the processing unit image of the abnormality detection processing unit, and “normal” is displayed in the vicinity of the processing unit image of the non-abnormality detection processing unit. Characters are displayed.

  In addition, the status monitoring screen 520 displays the processing unit 200 that is not operating and the processing unit 200 that is operating in an identifiable manner. In the present embodiment, the processing unit image 530 of the processing unit 200 that is not operating and the sensor image 529 of the sensor 100 connected to the processing unit 200 are displayed in white. Further, the characters “OFF” are displayed in the vicinity of the processing unit image 530 of the processing unit 200 that is not operating.

  6 and 7 also show a state monitoring screen 520. FIG. In the state monitoring screen 520, when the gear motor 2 is selected in the arrangement screen display area 521, detailed information of the selected gear motor 2 is displayed. The selection of the gear motor 2 here is not limited to the selection of the gear motor image of the gear motor 2 that displays the detailed information, as long as it is a selection that can specify the gear motor 2 that displays the detailed information. The case where the sensor image of the sensor 100 attached to the gear motor 2 for displaying the detailed information is selected is also included.

  In the example of FIG. 6, when a mouse cursor 533 is selected on one of the sensor images 529 on the state monitoring screen 520 and selected, the evaluation value is based on the vibration information detected by the sensor 100 associated with the sensor image 529. Is displayed as detailed information in a pop-up (superimposed) manner in the vibration information display area 534. When the mouse cursor 533 is moved to the sensor image 529e as shown in FIG. 6, the evaluation value (here, the peak value) based on the vibration information detected by the sensor 100e associated with the sensor image 529e is displayed in the vibration information display area. This is indicated by a pop-up display 534.

  Specifically, the screen display control unit 312 refers to the sensor association holding unit 336 (details will be described later), and is a process in which the sensor 100 corresponding to the sensor image 529 selected on the state monitoring screen 520 is connected. The processing unit No. and connection channel of the unit 200 are specified. Then, the screen display control unit 312 refers to the evaluation value holding unit 338 and acquires the evaluation value with the latest abnormality determination date and time among the specified processing unit No. and the evaluation value of the connection channel. The screen display control unit 312 displays the acquired evaluation value by a pop-up display in the vibration information display area 534.

  In the example of FIG. 7, when any sensor image 529 is selected on the state monitoring screen 520 and a right click or a specific key operation is performed, a pop-up menu 535 is displayed. In the example of FIG. 7, “Diagnosis trend” and “Diagnosis setting” are displayed as options in the pop-up menu 535. When “diagnostic trend” is selected, a transition is made to a diagnostic trend screen 550 (described later in FIG. 9). In particular, the trend graph based on the vibration information detected by the sensor 100 associated with the selected sensor image 529 transitions to a diagnostic trend screen 550 displayed on a graph 552 (described later). In addition, when “diagnosis setting” is selected, a transition is made to the diagnosis setting screen 500. In particular, a transition is made to the diagnostic setting screen 500 in a state where the diagnostic setting information of the sensor 100 associated with the selected sensor image 529 is displayed (the state of FIG. 4).

  Note that the pop-up menu may also be displayed when the processing unit image 530 is selected and a right click or a specific key operation is performed. In this case, for example, “Diagnosis Result” is displayed as an option on the pop-up menu, and when “Diagnosis Result” is selected, the diagnosis result of the processing unit 200 corresponding to the selected processing unit image 530 is displayed. You may make it change to the diagnostic result screen 540.

  FIG. 8 shows a diagnosis result screen 540. The diagnosis result screen 540 includes a processing unit number column 543, a processing unit name column 544, and a graph 542. In the processing unit number column 543, the identification number of the processing unit for displaying the diagnosis result is selected. In the processing unit name column 544, the processing unit name of the processing unit 200 selected in the processing unit number column 543 is displayed.

  When the read button 545 is pressed while the processing unit 200 is selected, a graph 542 is displayed. A graph 542 shows an evaluation value based on vibration information detected by each sensor 100 connected to the processing unit 200 selected in the processing unit No column 543. Specifically, the screen display control unit 312 refers to the evaluation value holding unit 338, and acquires the latest evaluation value of each connection channel of the processing unit No selected in the processing unit No column 543. The screen display control unit 312 displays the acquired evaluation value of each connection channel on the graph 542.

  In the example of FIG. 8, the diagnosis result of the peak value diagnosis is displayed. In the graph 542, the horizontal axis indicates the channel of the processing unit 200 to which the sensor 100 is connected. The vertical axis indicates the magnitude of the peak value. When the diagnostic result of the effective value diagnosis is displayed, the vertical axis indicates the magnitude of the effective value, and when the diagnostic result of the FFT diagnosis or the H-FFT diagnosis is displayed, the vertical axis indicates the magnitude of the target vibration component. It shows. When the save button 546 is pressed, the data of the graph 542 being displayed is saved in the terminal device 300.

  FIG. 9 shows a diagnostic trend screen 550. The diagnosis trend screen 550 includes a processing unit number column 553, a processing unit name column 554, a display channel column 555, a sensor name column 556, and a graph 552. In the processing unit number column 553, a management number for managing the processing unit 200 is selected. In the processing unit name column 554, the processing unit name of the processing unit 200 selected in the processing unit number column 553 is displayed. In the display channel column 555, the connection channel to which the sensor 100 for displaying the evaluation value trend graph, that is, the time passage of the evaluation value is connected is selected. In the sensor name column 556, the sensor name of the sensor 100 selected in the display channel column 555 is displayed.

  When the read button 557 is pressed while the processing unit 200 and the sensor 100 are selected, a graph 552 is displayed. The graph 552 displays a trend graph of evaluation values based on the vibration information detected by the sensor 100 specified by the processing unit No selected in the processing unit No column 553 and the connection channel selected in the display channel column 555. . Specifically, the screen display control unit 312 refers to the evaluation value holding unit 338, and among the evaluation values of the processing unit No and connection channel selected in the processing unit No column 553, a predetermined period (for example, the latest 30). Get the evaluation value of the day). The screen display control unit 312 displays the acquired evaluation value for the predetermined period on the graph 552.

  In addition, as described with reference to FIG. 7, when one of the sensor images 529 is selected on the state monitoring screen 520 to display the pop-up menu 535, and “diagnostic trend” is selected from the displayed options. The state transition screen 520 changes to the diagnostic trend screen 550. In this case, a trend graph based on vibration information detected by the sensor 100 associated with the sensor image 529 selected on the transition source state monitoring screen 520 is automatically displayed on the graph 552.

  Specifically, the screen display control unit 312 refers to the sensor association holding unit 336, and the processing unit of the processing unit 200 to which the sensor 100 corresponding to the sensor image 529 selected on the state monitoring screen 520 is connected. No, the processing unit name, the connection channel to which the sensor 100 is connected, and the sensor name are acquired. In addition, the screen display control unit 312 refers to the evaluation value holding unit 338 and acquires an evaluation value for a predetermined period (for example, the latest 30 days) among the acquired processing unit No and connection channel evaluation values. Then, the screen display control unit 312 displays the acquired processing unit number, processing unit name, and connection channel in the processing unit number column 553, the processing unit name column 554, the display cn555, and the sensor name column 556 of the diagnostic trend screen 550 of FIG. The sensor name is displayed, and the obtained evaluation value for the predetermined period is displayed on the graph 552.

  In the example of FIG. 9, a trend graph for peak value diagnosis is displayed. In the graph 552, the horizontal axis indicates time. The vertical axis indicates the magnitude of the peak value. When a trend graph for effective value diagnosis is displayed, the vertical axis indicates the magnitude of the effective value, and when a trend graph for FFT diagnosis or H-FFT diagnosis is displayed, the vertical axis indicates the size of the target vibration component. It shows. When the save button 558 is pressed, the data of the graph 552 being displayed is saved in the terminal device 300.

  FIG. 10 shows a facility layout setting screen 560. The facility layout setting screen 560 includes a parts area 561 and a facility layout display area 562. In the parts area 561, a passage image, a boundary (floor) image, and a conveyor image are displayed. The facility layout is created by placing the image of the part region 561 in the facility layout display region 562 by a drag-and-drop operation and appropriately scaling the image.

  The layout acquisition unit 315 acquires the facility layout created on the facility layout setting screen 560. Specifically, the layout acquisition unit 315 acquires facility layout information indicating the arrangement and size of each facility image of the facility layout.

  The layout setting unit 316 records the facility layout information acquired by the layout acquisition unit 315 in the layout holding unit 330.

  FIG. 11 shows an arrangement setting screen 590. The arrangement setting screen 590 is displayed when the OK button 563 is pressed on the facility layout setting screen 560 of FIG. On the arrangement setting screen 590, the arrangement of the gear motor 2 is set on the facility layout created on the facility layout setting screen 560 of FIG. Here, “setting the arrangement of the gear motor 2” means setting the arrangement of the gear motor 2 in the facility layout so as to be identifiable. Therefore, for example, the setting described above may set the arrangement of a gear motor image simulating the gear motor 2 on the facility layout. Further, for example, the above-described setting may be to set the arrangement of the sensor image indicating the sensor 100 instead of the gear motor image. This is because the corresponding gear motor 2 is present where the sensor 100 is present, so that it can be identified that the gear motor 2 is disposed even when the sensor image is disposed instead of the gear motor image. Further, for example, the setting described above may be to set the arrangement of a graphic image such as a simple square frame instead of the image imitating the gear motor 2 or the sensor 100.

  In the example of FIG. 11, the arrangement setting screen 590 includes a parts area 591 and an arrangement setting area 592. In the parts area 591, a gear motor image, a processing unit image, and a sensor image are displayed. The facility layout created in FIG. 10 is displayed in the arrangement setting area 592. An image (for example, a gear motor image) of the parts area 591 is arranged on the facility layout of the arrangement setting area 592 by a drag and drop operation. That is, in the example of FIG. 11, the arrangement of the gear motor image is set on the facility layout.

  The arrangement setting unit 318 acquires arrangement information indicating the arrangement of the gear motor image 528, the sensor image 529, and the processing unit image 530 arranged on the facility layout on the arrangement setting screen 590. The arrangement setting unit 318 records the acquired arrangement information in the arrangement information holding unit 332.

  The settings in FIGS. 10 and 11 may be performed on one screen.

  FIG. 12 shows a processing unit association screen 570. The processing unit association screen 570 is a screen for associating the processing unit image 530 of FIG. 11 with the actual processing unit 200. When the processing unit image 530 is selected (for example, double clicked) on the arrangement setting screen 590 of FIG. 11, a processing unit association screen 570 is displayed. The processing unit association screen 570 displays a list 571 of processing unit identification information for identifying the processing unit 200 based on the information set on the screen of FIG. 4 and stored in the storage unit 308. This processing unit identification information is, for example, a processing unit number or a processing unit name. From the displayed list 571, processing unit identification information associated with the processing unit image 530 is selected (for example, double-clicked).

  FIG. 13 shows a sensor association screen 580. The sensor association screen 580 is a screen for associating the sensor image 529 of FIG. 11 with the actual sensor 100. When the sensor image 529 is selected (for example, double-clicked) on the arrangement setting screen 590 of FIG. 11, a sensor association screen 580 is displayed. The sensor association screen 580 displays a list 581 of sensor identification information for identifying the sensor 100 based on the information set in the screen of FIG. 4 and stored in the storage unit 308. This sensor identification information is, for example, a sensor name, a processing unit number, a processing unit name, and a connection channel. Sensor identification information associated with the sensor image 529 is selected from the displayed list 581.

  The association setting unit 320 includes a processing unit association setting unit 324 and a sensor association setting unit 326. The processing unit association setting unit 324 sets the association between the processing unit image 530 arranged on the facility layout and the processing unit identification information for identifying the processing unit 200. Specifically, the processing unit association setting unit 324 associates the processing unit image 530 and the processing unit identification information selected on the processing unit association screen 570 of FIG. Record.

  The sensor association setting unit 326 sets an association between the gear motor image 528 arranged on the facility layout and sensor identification information for identifying the sensor 100 attached to the gear motor 2 indicated by the gear motor image 528. . The association here may be any association that shows that the gear motor image 528 and the sensor identification information correspond to each other, and is not limited to the case where the gear motor image 528 and the sensor identification information are directly associated with each other. For example, the association described above may associate the sensor image 529 with the sensor identification information. The gear motor image 528 and the sensor image 529 of the sensor 100 attached to the gear motor 2 indicated by the gear motor image 528 are associated with each other at the arrangement position, that is, are arranged adjacent to each other. This is because if the association with the identification information is known, the association between the gear motor image 528 and the sensor identification information can also be known.

  In the present embodiment, the sensor association setting unit 326 records the sensor image 529 selected on the sensor association screen 580 and the sensor identification information in the sensor association holding unit 336 in association with each other, that is, The association between the sensor image 529 and the sensor identification information is set.

  The sensor association holding unit 336 associates and holds a sensor image and sensor identification information. Specifically, the sensor association holding unit 336 includes a sensor image, a sensor name of the sensor 100 associated with the sensor image, a processing unit No of the processing unit 200 to which the sensor 100 is connected, and a process. A unit name and a connection channel are stored in association with each other.

  The diagnosis target information request unit 322 transmits a vibration information transmission request to the processing unit 200. For example, when the user confirms the state monitoring screen 520 and knows that an abnormality has occurred in the gear motor 2, the gear motor 2 in which the abnormality has occurred via the U / I unit 304 in order to perform more detailed analysis. Input a vibration information transmission request for. The diagnosis target information request unit 322 receives this input and transmits a transmission request. The diagnosis target information acquisition unit 328 acquires the vibration information transmitted in response to the transmission request.

The operation of the failure diagnosis system 10 configured as described above will be described.
The user inputs diagnosis setting information on the diagnosis setting screen 500 of FIG. The terminal device 300 acquires the diagnostic setting information input on the diagnostic setting screen 500 and transmits it to the processing unit 200. The processing unit 200 holds the transmitted diagnostic setting information.

  Further, the user creates a facility layout on the facility layout setting screen 560 in FIG. 10, and places a gear motor image 528, a sensor image 529, and a processing unit image 530 on the facility layout on the placement setting screen 590 in FIG. The terminal device 300 acquires the facility layout information of the created facility layout and the placement information of each image placed on the facility layout.

  Further, the user associates the processing unit image with the processing unit identification information on the processing unit association screen 570 in FIG. 12, and associates the sensor image with the sensor identification information on the sensor association screen 580 in FIG. The terminal device 300 holds association information.

  When the processing unit 200 receives a predetermined start instruction, the processing unit 200 vibrates for a set measurement time at a set sampling frequency at each diagnosis processing interval set by the diagnosis setting information. Get information. The processing unit 200 executes a diagnosis process based on the acquired vibration information. Specifically, the processing unit 200 performs a filtering process and a correction process corresponding to the cable length on the vibration information, and performs abnormality determination based on the processed vibration information. The processing unit 200 transmits the determination result of the abnormality determination to the terminal device 300.

  The terminal device 300 displays the state monitoring screen 520 based on the determination result. The user confirms whether or not an abnormality has occurred in the gear motor 2 by checking the state monitoring screen 520, and if an abnormality has occurred, which gear motor 2 arranged in which space of the facility has an abnormality. To figure out.

  According to the failure diagnosis system 10 according to the embodiment described above, the state monitoring screen 520 displays the sensor image 529 of the abnormality detection sensor in a manner that can be distinguished from the sensor image 529 of the non-abnormality detection sensor. Thereby, it can be grasped at a glance that an abnormality has occurred in the gear motor 2 corresponding to the abnormality detection sensor.

  In addition, according to the failure diagnosis system 10 according to the embodiment, the diagnosis setting information of the corresponding sensor 100 is displayed by performing a predetermined operation on the sensor image 529 selected on the state monitoring screen 520. Transition to the setting screen 500. This improves the convenience for the user.

  Further, according to the failure diagnosis system 10 according to the embodiment, when the mouse cursor is moved to the sensor image 529 on the state monitoring screen 520, the vibration information detected by the sensor 100 associated with the sensor image 529 is displayed. Pop-up is displayed. As a result, the user can easily check the vibration information detected by the sensor 100.

  Further, according to the failure diagnosis system 10 according to the embodiment, when two (ie, a plurality of) sensors 100 are provided in one gear motor 2, an abnormality detection sensor among the plurality of sensors 100 is not abnormal. It is displayed so that it can be distinguished from the detection sensor. Thereby, the site | part where abnormality generate | occur | produced can be pinpointed exactly.

  Further, according to the failure diagnosis system 10 according to the embodiment, the abnormality determination unit 216 performs different processing on the vibration information detected by each sensor 100 according to the length of the cable 400. Specifically, for example, when the cable 400 is long, the attenuation amount of the filter processing is increased, or the filter frequency band is widened. Thereby, the influence of noise is reduced. For example, when the cable 400 is long, the amplification gain of the correction process is increased. Thereby, attenuation of vibration information is relieved. That is, according to the present embodiment, since the influence of the difference in the length of the cable 400 for each sensor 100 is mitigated, a decrease in the accuracy of abnormality determination by the abnormality determination unit 216 can be suppressed.

  The failure diagnosis system according to the embodiment has been described above. It is understood by those skilled in the art that these embodiments are exemplifications, and that various modifications can be made to combinations of the respective constituent elements and processing processes, and such modifications are also within the scope of the present invention. By the way. A modification is shown below.

(Modification 1)
In the embodiment, the case where the abnormality determination unit 216 of the processing unit 200 includes the first pre-processing unit 222 and the second pre-processing unit 224 has been described. However, the present invention is not limited thereto, and the abnormality determination unit 216 includes the first pre-processing unit. Only one of 222 and the second pre-processing unit 224 may be included. That is, the abnormality determination unit 216 may execute only one of the filter process and the correction process on the vibration information.

(Modification 2)
Although not particularly mentioned in the embodiment and the above-described modification, the abnormality determination processing unit 226 may vary the determination condition for abnormality determination in each diagnosis method according to the length of the cable 400.

  For example, the abnormality determination processing unit 226 determines that an abnormality has occurred when an evaluation value such as a peak value or an effective value has continuously exceeded the abnormality threshold a specific number of times, and the cable length is greater than or equal to the length threshold. The specific number of times may be set to a larger value than when the length is less than the length threshold. For example, the specific number of times when the cable length is less than the length threshold may be 1, and the specific number of times when the cable length is equal to or greater than the length threshold may be 3. Alternatively, in any case, the specific number of times may be a plurality of times, for example, the specific number of times when the cable length is less than the length threshold may be 2, and the specific number of times when the cable length is greater than or equal to the length threshold may be 5. It is good. Where a large peak value or the like may be detected due to the influence of noise, this modification can suppress erroneous determination due to the influence of noise.

  For example, instead of performing the correction process by the second pre-processing unit 224, the abnormality threshold value in the abnormality determination by the abnormality determination processing unit 226 may be adjusted. That is, when the cable length is greater than or equal to the length threshold, the abnormality threshold may be set to a smaller value than when the cable length is less than the length threshold.

(Modification 3)
Although not particularly mentioned in the embodiment and the above-described modification, the first preprocessing unit 222, the second preprocessing unit 224, and the abnormality determination processing unit 226 are further in accordance with at least one of the diameter and type of the cable 400. Different processing may be performed on the vibration information.

  For example, the first pre-processing unit 222, the second pre-processing unit 224, and the abnormality determination processing unit 226 are configured to perform a case where the diameter of the cable 400 is equal to or larger than a predetermined threshold and a case where the diameter of the cable 400 is smaller than the predetermined threshold. Different processing may be performed on the vibration information. Since the signal is more likely to be attenuated as the cable diameter is smaller, if the cable diameter is small, the handling may be the same as when the cable length is long.

  Further, for example, the first pre-processing unit 222, the second pre-processing unit 224, and the abnormality determination processing unit 226 employ a type of cable 400 having a higher electrical resistance and a type of cable 400 having a lower electrical resistance. Different processing may be performed on the vibration information depending on the case of adoption. Since the signal is more easily attenuated as the electric resistance is larger, the type of cable 400 having a larger electric resistance may be handled in the same manner as when the cable length is long.

(Modification 4)
In the embodiment and the above-described modification, the first preprocessing unit 222, the second preprocessing unit 224, and the abnormality determination processing unit 226 use vibration information when the cable 400 is relatively long and when the cable 400 is relatively short. However, the present invention is not limited to this. The first preprocessing unit 222, the second preprocessing unit 224, and the abnormality determination processing unit 226, for example, when the cable length is less than the first length threshold, and greater than or equal to the first length threshold and the second length threshold (> first Different processing depending on whether the cable length is relatively short, the medium length, or the relatively long case. You may go. Furthermore, the cable length may be classified into four or more stages, and different processing may be performed in each case.

  Further, for example, the second preprocessing unit 224 may estimate the attenuation amount of the vibration information based on the length of the cable 400 and change the amplification gain according to the attenuation amount. For example, a value calculated by a predetermined calculation formula using the length of the cable 400 as a variable may be used as the estimated attenuation amount.

(Modification 5)
In the modification of the embodiment, the case where a specific numerical value is set for the cable length has been described. However, the present invention is not limited to this. For example, a character or a character string indicating the length may be set. For example, instead of setting a specific numerical value for the cable length, “long”, “medium”, and “short” may be set. In this case, the first pre-processing unit 222, the second pre-processing unit 224, and the abnormality determination processing unit 226 have a case where “length” is set for the cable length, a case where “medium” is set, and “ Different processing may be performed on the vibration information depending on whether “short” is set.

(Modification 6)
In the embodiment, the case where a facility layout is created on the facility layout setting screen 560 has been described. However, the present invention is not limited to this.

  FIG. 14 shows a facility layout setting screen 660 according to a modification. The facility layout setting screen 560 includes a read file area 661 and a facility layout display area 662. In the read file area 661, a list of files of the facility layout diagram read by the terminal device 300 is displayed as thumbnails. The file is, for example, image data such as CAD data or JPEG. When a facility layout diagram file displayed as a thumbnail in the read file area 661 is selected, the selected image file is displayed in the facility layout display area 662. When the OK button 663 is pressed, the layout acquisition unit 315 acquires the selected facility layout diagram. The layout setting unit 316 records the facility layout diagram acquired by the layout acquisition unit 315 in the layout holding unit 330 as layout information.

  According to this modification, since it is not necessary to create a facility layout, the burden on the user is reduced.

(Modification 7)
In the embodiment, the case where the cable length of the cable 400 is set on the diagnosis setting screen 500 has been described. However, the present invention is not limited to this, and a cable image showing the cable 400 is drawn on the arrangement setting screen in a form simulating the actual routing. The cable length may be estimated and set based on the length of the cable image.

  FIG. 15 shows an arrangement setting screen 690 according to a modification. The arrangement setting screen 690 includes a parts selection area 691 and an arrangement setting area 692. In the present modification, the part selection area 691 includes a cable image as a selectable image. One of the cable images is selected in the part selection area 691, and a cable image 693 is drawn so as to connect the processing unit image 530 and the sensor image 529 by a predetermined mouse operation or the like.

  The data processing unit 306 of the terminal device 300 may further include a cable length calculation unit. The cable length calculation unit obtains the scale information input by the user via the U / I unit 304, and calculates the cable length of the cable 400 based on the scale information and the length of the cable image. The diagnosis setting information transmission unit 314 transmits the calculated cable length to the processing unit 200.

  According to this modification, since the cable length is calculated and set only by writing the cable image, the burden on the user is reduced.

(Modification 8)
Although not particularly mentioned in the embodiment and the above-described modified example, the abnormality determination processing unit 226 of the processing unit 200 may perform abnormality determination according to a plurality of stages of threshold values. For example, the abnormality determination unit 216 may determine abnormality according to an abnormality threshold and a caution threshold (<abnormal threshold). By providing a caution threshold value that is lower than the abnormality threshold value, it is possible to detect a sign of abnormality at an early stage.

(Modification 9)
The gear motor image 528 and the processing unit image 530 may be displayed in the arrangement screen display area 521, and the sensor image 529 may not be displayed. In this case, the gear motor image 528 may be associated with the sensor identification information of the sensor 100. Specifically, when the gear motor image 528 is selected, a sensor association screen 580 is displayed, and the gear motor image 528 may be associated with the sensor identification information. The sensor association setting unit 326 may set a direct association between the gear motor image 528 and the sensor identification information. Further, in the state monitoring screen 520, the gear motor image 528 associated with the sensor 100 that has detected the vibration information that is the basis for determining that an abnormality has occurred can be distinguished from the other gear motor images 528. Can be displayed.

(Modification 10)
In the embodiment, the case where the determination result transmission unit 218 of the processing unit 200 transmits the evaluation value together with the determination result to the terminal device 300 has been described. However, the present invention is not limited to this, and the determination result transmission unit 218 is different from the determination result. The evaluation value may be periodically transmitted to the terminal device 300 at the timing. In this case, the determination result acquisition unit 310 of the terminal device 300 may acquire an evaluation value transmitted at a timing different from the determination result and record it in the evaluation value holding unit 338.

  In the embodiment, the case where the diagnosis target information transmission unit 220 transmits the diagnosis target information to the terminal device 300 in response to the transmission request has been described. However, the present invention is not limited to this, and the diagnosis target information transmission unit 220 responds to the transmission request. Regardless, the diagnosis target information may be periodically transmitted to the terminal device 300. In this case, the data processing unit 306 of the terminal device 300 may further include an evaluation value extraction unit that extracts an evaluation value from the diagnosis target information that is periodically transmitted and accumulates the evaluation value in the evaluation value holding unit 338.

  In the embodiment, the case where the evaluation value is held on the terminal device 300 side has been described. However, the present invention is not limited to this, and the evaluation value may be held on the processing unit 200 side. In this case, when the evaluation value is pop-up displayed as shown in FIG. 6 or when the graph based on the evaluation value shown in FIGS. 8 and 9 is displayed, the processing unit 200 transmits the evaluation value to the terminal device 300. Good.

(Modification 11)
The terminal device 300 may have at least a part of the functions of the processing unit 200. Further, the processing unit 200 may have at least a part of the functions of the terminal device 300.

  For example, the functions of the abnormality determination unit 216, the screen display control unit 312, the layout setting unit 316, the arrangement setting unit 318, and the association setting unit 320 may be realized by arbitrary devices, respectively. For example, all these functions may be realized by the processing unit 200, or all these functions may be realized by the terminal device 300.

  For example, some functions of the abnormality determination unit 216 may be realized by the processing unit 200 and the remaining functions may be realized by the terminal device 300. Specifically, the functions of the first preprocessing unit 222 and the second preprocessing unit 224 may be realized by the processing unit 200, and the function of the abnormality determination processing unit 226 may be realized by the terminal device 300. In this case, the diagnosis target information transmission unit 220 may transmit the vibration information filtered and corrected by the first preprocessing unit 222 and the second preprocessing unit 224 to the terminal device 300 regardless of the transmission request.

  In addition, for example, the screen display control unit 312, the layout setting unit 316, the arrangement setting unit 318, and the association setting unit 320 may be realized by separate devices.

(Modification 12)
In the embodiment, the failure diagnosis system 10 has been described based on the case where it is determined whether or not an abnormality has occurred in the gear motor 2 based on the vibration generated in the gear motor 2, but the present invention is not limited to this. For example, the failure diagnosis system 10 replaces the vibration generated in the gear motor 2 or in addition to the vibration generated in the gear motor 2 with at least one of the motor current of the gear motor 2, the temperature, and the iron powder concentration of the lubricating oil. Based on this, it may be diagnosed whether or not an abnormality has occurred in the gear motor 2. That is, instead of the vibration information or in addition to the vibration information, at least one of information on the motor current, temperature, or iron powder concentration of the lubricating oil may be used as diagnosis target information. The same applies to the diagnosis target device other than the gear motor 2. That is, the failure diagnosis system 10 may use diagnosis target information suitable for determining an abnormality of the diagnosis target device.

  Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. The new embodiment generated by the combination has the effects of the combined embodiment and the modified examples. In addition, it should be understood by those skilled in the art that the functions to be fulfilled by the constituent elements described in the claims are realized by the individual constituent elements shown in the embodiments and the modified examples or by their linkage. . For example, the wiring information setting unit described in the claims may be realized by the diagnosis setting information setting unit 212.

  2 gear motor, 10 failure diagnosis system, 100 sensor, 200 processing unit, 212 diagnosis setting information setting unit, 216 abnormality determination unit, 300 terminal device.

Claims (7)

A sensor that is provided in each of the plurality of diagnosis target devices and detects diagnosis target information of the corresponding diagnosis target device; and
Diagnostic target information acquisition means provided for a plurality of diagnostic target devices, connected to each sensor by wiring and acquiring diagnostic target information detected by the sensors;
An abnormality determination means for determining whether an abnormality has occurred in the diagnosis target device based on the diagnosis target information acquired by the diagnosis target information acquisition means;
Wiring information setting means for setting a wiring distance between each sensor and diagnostic object information acquisition means,
The failure determination system, wherein the abnormality determination unit performs different processing on diagnosis target information detected by each sensor according to a wiring distance of each sensor.   The failure diagnosis system according to claim 1, wherein the abnormality determination unit changes the filtering process for the diagnosis target information according to the wiring distance.   The failure diagnosis system according to claim 1, wherein the abnormality determination unit changes correction processing for diagnosis target information according to a wiring distance.   The fault diagnosis system according to claim 3, wherein the abnormality determination unit estimates an attenuation amount of diagnosis target information based on a wiring distance and performs correction processing.   5. The failure diagnosis system according to claim 1, wherein the abnormality determination unit changes a determination condition for determining an abnormality according to a wiring distance.   6. The failure diagnosis system according to claim 5, wherein the abnormality determination unit determines that an abnormality has occurred when the number of times that the threshold value has been exceeded reaches a predetermined number, and varies the predetermined number according to the wiring distance. The wiring information setting means sets the type and / or diameter of the wiring,
The fault diagnosis system according to claim 1, wherein the abnormality determination unit changes processing according to the type and / or diameter of the wiring.