JP7105745B2 - Mechanical equipment inspection device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a technique for inspecting mechanical equipment that generates sound and vibration during its operation. Among them, in particular, the object is an elevator such as an elevator or an escalator. Also, in inspection, it relates to an apparatus for inspecting abnormalities, and to inspection technology using sound and vibration.

As a means of inspecting the operating status of the components of an elevator, which is an example of mechanical equipment, it is known to measure sound, vibration, etc., and compare past normal and abnormal data to determine the soundness of each piece of equipment. It is For example, Patent Literature 1 describes a method of measuring sound and vibration data, transmitting the data to a management database, and determining abnormality.

JP 2013-113775 A

However, although Patent Document 1 proposes measurement using a smart device, it is necessary to directly operate the smart device to start and end the measurement. Therefore, the following procedure is taken when measuring a location that is difficult to access while the elevator is in operation. Before the elevator starts operation, the smart device is installed and measurement is started, the elevator is operated after leaving the installation location, and after the elevator stops, the smart device is accessed again and measurement is completed.

Due to this operation, there is a problem that the amount of data increases because unnecessary data during the elevator stop is added before and after the data section that is originally desired to be acquired. In particular, the analysis of inspection results requires the operating state of the elevator (for example, car position, starting, landing, acceleration, deceleration, etc.). Acquiring all of these data also increases the amount of data. Furthermore, there is a problem that the operating state of the elevator and the measurement data cannot be confirmed in synchronization.

Therefore, the present invention acquires the operating status of elevators and escalators when inspecting elevators and escalators for abnormalities using smart devices, measures and records the operating status such as the data range from the start to the end of operation and speed information. intended to

In order to solve the above problems, the present invention specifies necessary or useful information for examination, and collects and records them. Specific aspects for this purpose include the following aspects. A first aspect of the present invention is an inspection device for mechanical equipment that generates sound or vibration during operation, wherein a plurality of sensors for measuring information generated by the operation of the mechanical equipment, and the sensors included in the plurality of sensors When it is determined that the mechanical equipment has started to operate based on the information measured by the first sensor, at least a part of the plurality of sensors starts recording information that can be measured, and the mechanical equipment is detected by the first sensor. a control unit that terminates recording of information measurable by at least a part of the plurality of sensors when the end of operation is detected; and a storage unit that stores information according to the control by the control unit. It is an inspection device for mechanical equipment equipped with.

Furthermore, a second aspect of the present invention provides an inspection apparatus for mechanical equipment that generates sound or vibration during operation, wherein a plurality of sensors for measuring information generated due to the operation of the mechanical equipment; A control unit that recognizes each installation position and determines whether or not to record information measurable by the sensor according to the installation position, and a storage unit that stores the information determined to be recorded. This is an inspection device for mechanical equipment.

The present invention also includes an inspection method performed by an inspection apparatus for mechanical equipment and a computer program for realizing the inspection method.

According to the present invention, the amount of data to be stored for inspection can be reduced, and costs can be suppressed.

4 is a schematic diagram showing installation positions of smart devices 9 to 13 in the elevator of Embodiment 1. FIG. 4 is a schematic diagram showing a display screen/IF section 14 and its display contents in smart devices 9 to 13 of Embodiment 1. FIG. FIG. 4 is a diagram showing a sensor information list 2031 used in the first embodiment; FIG. FIG. 4 is a schematic diagram showing a sound determination result screen 25 according to the first embodiment; 4 is a schematic diagram showing a vibration determination result screen 33 of Example 1. FIG. FIG. 5 is a schematic diagram showing installation positions of smart devices 51 to 56 on the escalator of the second embodiment; FIG. 10 is a diagram showing a sensor information list 2032 used in the second embodiment; FIG. FIG. 2 is a configuration diagram of a system that performs abnormality inspection in the first and second embodiments; 4 is a flowchart showing an abnormality inspection including measurement processing in Examples 1 and 2; Display screen/IF section 14 and its display content in smart devices 9 to 13 before measurement in Examples 1 and 2 (part 1) Display screen/IF section 14 and its display content in smart devices 9 to 13 before measurement in Examples 1 and 2 (Part 2)

Embodiment 1 in which the present invention is applied to abnormality inspection of elevators and Embodiment 2 in which the present invention is applied to abnormality inspection of escalators will be described below with reference to the drawings.

In the first embodiment, an elevator abnormality inspection is performed as described above. This inspection may be performed by the smart devices 9 to 13 shown in FIGS. 1 and 2 alone. In other words, the smart devices 9 to 13 are used as abnormality inspection devices. Further, this inspection may be performed by the system shown in FIG. In the first embodiment, processing performed by the smart devices 9 to 13 alone will be mainly described. The processing performed by the system shown in FIG. 8 will be described mainly with respect to differences from the processing performed by the smart devices 9 to 13 alone.

First, FIG. 1 is a schematic diagram showing the installation positions in which the smart devices 9 to 13 according to the first embodiment of the present invention are installed in an elevator in order to inspect the elevator for abnormality. A car 3 and a counterweight 4 are connected by a rope 5 via a top pulley 6 , a car pulley 8 and a counterweight pulley 7 in a hoistway 1 of an elevator without a machine room to be inspected. By sending out the rope 5 using the motor 2, the car 8 is moved up and down. FIG. 1 shows a smart device 9 installed on the motor 2 (near the motor) during the abnormality inspection, a smart device 10 installed on the car 3 (on the car), and a smart device 10 inside the car 3 (on the car). A smart device 12 installed in the car), a smart device 11 installed on the counterweight 4 (above the counterweight), and a smart device 13 installed on the floor of the hoistway (hoistway floor) are shown. . Measurement can be performed by changing the installation positions of the smart devices 9 to 13 according to the object to be inspected, and a plurality of signals such as sound, acceleration, video, air pressure, and magnetism are measured and judged. Note that FIG. 1 shows an example in which five smart devices are installed, but the number is not limited to this. Devices other than smart devices may be used as long as they can implement the functions described later.

Also, FIG. 8 shows the configuration of the smart device 9 and the system configuration for abnormality inspection. Here, the configuration of the smart device 9 will be described. First, the smart device 9 includes various sensors. The sensors consist of an acceleration sensor 91 , an air pressure sensor 92 , a magnetic sensor 93 , a vibration sensor 94 , a camera 95 and a microphone 96 . Other sensors such as a speed sensor may be added, or some of them may be omitted.

It also has a display screen/IF unit 14 that displays various types of information and accepts input from the user (examiner). The display screen/IF section 14 can be realized by a so-called touch panel.

The smart device 9 also includes a communication unit 98 that connects with the network 100 . Further, it has a storage unit 99 that stores various kinds of information, and a control unit 97 that performs calculations according to programs and applications stored in the storage unit and read out to a RAM (Random Access Memory). Each of these components is connected via a bus or the like.

Other configurations shown in FIG. 8 will be described later.

FIG. 2 is a schematic diagram showing a measurement screen used in the abnormality inspection of Example 1 of the present invention. The measurement screen has the following areas. Sound pressure area 15 for displaying sound data in terms of sound pressure
Frequency area 16 for displaying sound data in frequency
Vibration area 17 displaying vibration data in vibration level
Speed area 18 that displays the operating status of the elevator
A measurement position area 19 that accepts the designation of the position where the smart devices 11 to 13 are installed and displays the position
Processing buttons 20 for running frequency filters on sound and vibration data
Video playback area 21
Sound and video playback button 22 and stop button 23
Playback area display and scroll bar 24 for selection
A sound pressure area 15, a frequency area 16, a vibration area 17, and a speed area 18 show measurement data from the start to the end of the elevator operation, with time on the horizontal axis and car position.

In addition, the smart devices 11 to 13 are operated by a person to perform various settings.

As shown in FIG. 1, the smart devices 11 to 13 are installed inside the hoistway 1 . For this reason, after operating the smart devices 11 to 13, the elevator is operated after the person evacuates from the hoistway 1. Therefore, when performing measurement, the smart device installation information is entered, and then the measurement start standby state is set. . At the start and end of measurement, the operation status of the elevator is acquired based on each sensor information for each installation position of the abnormality inspection device, and the section from the start of the elevator operation to the end is recorded. In addition, the operating status of the elevator (car position, speed information, etc.) is calculated from each sensor information and recorded.

Further, FIG. 10A shows the display screen/IF unit 14 and its display contents in the smart devices 9 to 13 before measurement. Compared to FIG. 2, since there is no measurement result, a blank measurement data area 101 is displayed instead of the sound pressure area 15, frequency area 16, vibration area 17, and velocity area 18. The measurement processing in 13 will be described with reference to FIGS. 9 and 10 (A) and (B). Note that the measurement processing is performed by each of the smart devices 9 to 13, but since the processing content is the same, the smart device 9 will be described as an example.

First, in step S<b>1 , the smart device 9 receives designation of information to be measured from the inspector via the display screen/IF unit 14 . The display at this time is as shown in FIG. The smart device 9 receives designation of the measurement position from the inspector for the measurement position area 19 in the display screen/IF section 14 . When this is received, the measurement position is displayed in the measurement position area 19 by the processing of the control section 97 . This specification and display are specified and displayed by contents such as "hoistway floor", "inside the car", "above the car", "near the motor", and "on the balance weight".

Also, in step S1, when the measurement position area 19 is specified, a position sensor (not shown) may be activated to specify the installation position according to the measurement result. In this case, based on the coordinate information measured by the position sensor, it is determined whether it is "hoistway floor", "inside the car", "above the car", "near the motor", or "on the balance weight". This is done using information that associates the coordinate information with the installation position. Furthermore, the position sensor can be realized with a GPS sensor or a gyro sensor.

Next, in step S2, the control unit 97 specifies the sensor used for measurement. This identifies the sensor corresponding to the installation position specified in step S1 using the sensor information list 2031 shown in FIG. Specifically, when "hoistway floor" is specified in step S1 (when a smart device is installed on the hoistway floor), the video marked with "o" in FIG. 3 = camera 95, sound = microphone 96, identify the vibration sensor 94; The information measured by the specified sensor is then recorded. Measurement and recording will be described later using flowcharts. In addition, in this example, the sound and vibration are indicated as "O" at each installation location. This is because it is essential information for abnormality inspection. In this way, the information marked with "o" at each installation location may be separately registered as essential information without being recorded in the sensor information list 2031. FIG.

Also, once the sensors have been identified in step S2, it is preferable that the inspector can identify the identified sensors. For this purpose, the control section 97 displays the information shown in FIG. 10(B) on the display screen/IF section 14 . In other words, the content of the display screen/IF section 14 transitions from FIG. 10(A) to FIG. 10(B) from steps S1 to S2.

This example shows the case where sound=microphone 96 is specified. Therefore, the control unit 97 displays virtual measurement data in the sound pressure area 15 and the frequency area 16 that display the resulting sound pressure and frequency measured by the microphone 96 . This may be past data stored in the storage unit 99 or data schematically created. Also, without displaying these data, it is possible to clearly display "sound pressure" and "frequency" and to display the sound pressure area 15 and frequency area 16 (blank).

Next, in step S3, the control unit 97 uses the acceleration information from the acceleration sensor 91 to determine whether the elevator is in operation. This can be determined by whether the acceleration sensor 91 has started to measure the acceleration, that is, whether the elevator is accelerating to indicate the movement of the elevator.

Note that if the acceleration sensor 91 cannot measure the operation of the elevator because it is installed on the "hoistway floor" like the smart device 13, the microphone 96 or the vibration sensor 94 may be used to detect the start of operation.

As a result of the determination in step S3, if it is determined that it has not been detected (NO), the process is repeated until it is detected. If it is determined that the measurement has been performed (YES), the process proceeds to step S4.

Next, in step S4, the control unit 97 measures information measured by the sensor specified in step S2, and stores the information in the storage unit 99. FIG. In this step, the specified sensor may be used for measurement, or the information measured by the unspecified sensor may be excluded and stored. That is, there may be a method of activating the identified sensor and a method of storing the information of the identified sensor.

Next, in step S5, the controller 97 uses the acceleration information from the acceleration sensor 91 to determine whether the elevator has stopped. This can be determined by whether the acceleration sensor 91 has finished measuring the acceleration, that is, whether the acceleration data indicates a stop.

If the acceleration sensor 91 cannot measure the stop of the elevator because it is installed on the "hoistway floor" like the smart device 13, the microphone 96 or the vibration sensor 94 may be used to detect the stop. That is, in this step, a process opposite to that of step S3 is executed.

As a result of the determination in step S5, if it is determined that no detection has been made (NO), the process returns to step S4 to repeat the measurement. If it is determined that it has been detected (YES), the process proceeds to step S6. Although the same sensor is used in steps S3 and S5 in this example, different sensors may be used in each step.

Next, in step S6, the control unit 97 generates analysis data for inspection from the measured information. This includes extracting characteristics of the measured information and identifying the start-up time. It also includes generating other information from the measured information, such as calculating velocity from moving images captured by the camera 95 .

Here, referring to the sensor information list 2031 shown in FIG. 3, the measurement/storage of information measured from the identification of the sensor in steps S2 to S7 and the generation of data for analysis will be described. Note that the following recording is performed in the storage unit 99 by the control unit 97 .

When measuring with the smart device 13 installed on the floor surface of the hoistway (hoistway floor), a video of the car is captured and changes in the size of the car on the video are used to determine the start of elevator operation, speed, Extract and record the end point of operation.

When the smart device 9 installed "near the motor" above the motor 2 performs measurement, the elevator operation start, speed, and operation end point are extracted and recorded from the acceleration generated in the rotation of the motor. Further, by measuring the magnetism generated to rotate the motor 2, it is possible to acquire a more accurate operating state.

When the measurement is performed by the smart device 10 installed "above the car" above the car 3, the operation start, speed, and operation end point of the elevator are extracted and recorded from the acceleration and air pressure information.

When the smart device 12 installed in the car 3 "inside the car" performs measurement, the elevator operation start, speed, and operation end point are extracted and recorded from the acceleration and air pressure information.

When the smart device 11 installed "near the counterweight" on the counterweight 4 is used for measurement, the operation start, speed, and operation end point of the elevator are extracted and recorded from the acceleration and air pressure information.

Next, in step S7, the control unit 97 performs data analysis using the analysis data generated in step S6.

For example, the speed, acceleration, and floor information of the elevator described above are stored in advance in the storage unit 99, and the car position is calculated by comparing with the measurement data and analysis data, and displayed on the display screen/IF unit 14. indicate.

Further, in step S7, determination of abnormality inspection may also be performed. This is done by using normal data and abnormal data stored in advance in the storage unit 99 for sound and vibration data, and analyzing feature amounts such as frequency, signal level, and signal generation timing of analysis data and measurement data, and database values. is determined by comparing As a result of this comparison, it is determined which of the normal data and the abnormal data is more approximate. Alternatively, either one of the normal data and the abnormal data may be used. Note that the processing of step S including determination is not limited to these, and for example, the technology disclosed in Japanese Patent Application Laid-Open No. 2018-48886 may be used.

FIG. 4 shows the sound determination result screen 25 in the display screen/IF unit 14 when the determination processing of step S7 is performed. The sound determination result screen 25 has a sound spectrum graph display area 26 in which the horizontal axis indicates the car position, the vertical axis indicates the sound frequency, and the color depth indicates the magnitude of each frequency. Abnormality extraction point marks 27 , 28 and 29 are displayed above a plurality of areas determined to be abnormal in the spectrum graph display area 26 . It has determination result display areas 30, 31, and 32 for displaying the determination, cause, and countermeasures corresponding to the abnormal extraction point marks.

5 shows a vibration judgment result screen 33 in the display screen/IF unit 14. As shown in FIG. The vibration determination result screen 33 has a vibration spectrum graph display area 34 in which the horizontal axis indicates the car position, the vertical axis indicates the vibration frequency, and the color density indicates the magnitude of each frequency. Abnormal extraction point marks 35 and 36 are displayed above a plurality of areas extracted as abnormal in the spectrum graph display area 34 . It has determination result display areas 37 and 38 for displaying the determination, cause, and countermeasures corresponding to the abnormal extraction point mark.

In the spectrum graph display areas of FIGS. 4 and 5, by selecting an arbitrary area from the areas not extracted as abnormal and making a judgment, the cause of the sound and vibration occurring in the area not judged as abnormal and correspondence can be displayed.

The abnormality inspection for the smart devices 9 to 13 alone has been described above. Next, an example in which the smart devices 9 to 13 and the server device 200 connected to them via the network 100 work together to perform an abnormality inspection will be described.

FIG. 8 shows the configuration of the server device 200 and the like used in this example. The server device 200 is implemented as a so-called information processing device. That is, it has a storage unit 203 that stores various information, a control unit 201 that performs calculations according to a program stored in the storage unit and read out to a RAM (random access memory), and a communication unit 202 that is connected to the network 100. . Furthermore, it has an adapter 204 connected to the terminal device 300 . Each of these configurations is connected via a bus.

Abnormality inspection processing using these devices will be described below with reference to FIG. The main difference between this process and the above-described single process is the main difference. Therefore, in the following description, the differences in processing among the smart devices 9 to 13 will be mainly described.

First, in steps S1 and S2, each smart device 9 to 13 receives designation of measurement information and identifies a sensor in the same manner as described above.

Also in step S3, each smart device 9-13 determines whether or not the start of operation of the elevator has been detected. However, if YES in step S3, each smart device 9 to 13 transmits to the server device 200 via the network 100 that the measurement is to be started. As a result, the control unit 201 activates the failure inspection process.

Next, in step S 4 , information detected by the sensors of the smart devices 9 to 13 is measured by the control unit 201 of the server device 200 and stored in the storage unit 203 . The operation of the control unit 201 at this time is the same as that of the control unit 97 . Also, at this time, the measured information may be temporarily stored in each storage section (storage section 99 or the like) of each of the smart devices 9 to 13 and transmitted to the server device 200 .

Next, in step S5, each smart device 9 to 13 determines whether or not the stop of the elevator has been detected. If the answer is NO, the process of step S4 including the measurement by each smart device 9-13 is repeated. If YES, go to step S6. If YES, each smart device 9 to 13 notifies the server device 200 that the measurement has been completed.

In step S4, when the information measured by each smart device 9 to 13 is temporarily stored, the stored information is transmitted to the server device 200 when YES is determined in step S5.

Next, in step S6, the control unit 201 of the server apparatus 200 performs the data analysis performed by the smart device described above. At this time, the output destination of the data is the display screen of the terminal device 300 . Furthermore, in step S7, the control unit 201 of the server device 200 also executes the above-described processing performed by the smart device. This result is also displayed on the display screen of the terminal device 300 .

In this example, a smart device is used, but various sensor devices may be installed at each installation position to perform processing. In this case, instead of the smart device 9, the terminal device 300 executes the reception of the designation of the measurement information.
This completes the description of the first embodiment.

Next, a description will be given of a second embodiment in which abnormality inspection is performed on an escalator. The main differences between Embodiments 1 and 2 are the objects to be inspected, the installation locations of the smart devices to be used depending on the difference in the objects to be inspected, and the list of sensor information. Also, in the second embodiment, as in the first embodiment, processing can be performed by a single smart device (smart devices 51 to 56 in this embodiment) or in cooperation with the server device 200 .

Therefore, in the second embodiment, as in the first embodiment, the configuration shown in FIG. 8 is used and processing is performed according to the flowchart shown in FIG. Therefore, the embodiment will be described with a focus on the above-described differences, and the configuration and processing flow will be omitted.

FIG. 6 is a schematic diagram showing an installation state of smart devices 51 to 56 that can be used as at least part of the escalator abnormality inspection apparatus according to the second embodiment of the present invention. The escalator is supported by a truss 39 installed between the upper and lower floors, as shown in FIG. An escalator driving device 42 and a control panel 43 are installed in the upper truss 41 . The drive device 42 is controlled by a control panel 43 and drives a drive sprocket 45 via a drive chain 44 .

A driven sprocket 46 paired with the driving sprocket 45 is installed in the lower truss 40 , and a step chain 47 is wound between the driving sprocket 45 and the driven sprocket 46 . A large number of steps 48 are connected to the step chain 47 , and the step chain 47 rotates between the driving sprocket 45 and the driven sprocket 46 by rotating the driving sprocket 45 with the driving device 42 . In addition, a large number of steps 48 are configured to circulate along guide rails (not shown) between the upper-floor entrance and the lower-floor entrance.

A balustrade 49 is erected on both left and right sides of the step 48 that circulates, and a handrail belt 50 is attached to the outer periphery of the balustrade 49 . The handrail belt 50 is a handrail that is gripped by passengers riding on the steps 48 .

FIG. 6 shows a smart device 51 installed in the lower truss, a smart device 52 installed in the lower platform, a smart device 53 installed on the steps 48, and a smart device installed in the upper platform during the abnormality inspection. 54 , a smart device 55 installed in the lower truss and a smart device 56 installed on the drive 42 . As in the first embodiment, it is possible to perform inspection by changing the installation position according to the object, and judge by measuring a plurality of signals such as sound, acceleration, video, atmospheric pressure, and magnetism.

When taking measurements, enter the smart device installation information, and then place the smart device in the standby state for the start of measurement. At the start and end of measurement, the operation state of the escalator is specified based on at least part of the information from each sensor for each installation position of the abnormality inspection device, and the section from the start of the escalator operation to the end is recorded. At the same time, the operating status of the escalator (step position, speed information, etc.) is calculated from each sensor information and recorded.

FIG. 7 shows a sensor information list 2032 used for each installation position of the smart devices 51-56. This has the same configuration as the sensor information list 2031 shown in FIG. 3 used in the first embodiment, but the installation position is different. Also, as in FIG. 3, the recording of the sound and vibration marked with "o" at each installation location in this list may be omitted. When measuring by installing the lower truss 40, upper truss 41, lower landing, and upper landing, each smart device 54 detects the movement of the steps using video and measures the vibration caused by the operation, thereby measuring the vibration of the escalator. Extract and record the operation start, speed, and operation end points. After that, the other smart devices 51 to 53, 55 and 56 may be configured to start measurement (or start recording the measurements) in conjunction with activation of the smart device 54. FIG.

The measurement information of the lower truss 40 and the upper truss 41, and the lower landing and the upper landing are of the same type. Therefore, as shown in FIG. 7, it is possible to register the installation locations as "inside the upper and lower trusses," "upper and lower landings," "steps," and "near the motors." In addition, in this example, the same measurement information was obtained for the same type of "inside the truss" and "platform", but if the measurement information is the same for different types of installation locations, the sensor information list 2032 can be used to collectively record the data volume. reduction becomes possible.

When the escalator is installed on the step 48, the escalator operation start, speed, and operation end point are extracted and recorded from the acceleration and air pressure information.

When the smart device 56 installed on the driving device 42 performs measurement, the operation start, speed, and operation end point of the escalator are extracted and recorded from the acceleration generated by the rotation of the driving device. By also measuring the magnetism generated to rotate the driving device, it is possible to estimate the operating state more accurately.

It should be noted that, as described above, the determination of abnormality inspection uses the normal database and the abnormality database for each device for the sound and vibration data, as in the case of elevators. In other words, the determination is made by comparing the feature quantities such as the frequency of the measurement data, the signal level, the timing of signal generation, and the values in the database (step S7).

In addition, in Examples 1 and 2, the target is the abnormality inspection, but the present invention is not necessarily limited to this. For example, it can also be applied to sign detection.

As described above, in Embodiments 1 and 2, elevators and escalators were tested. Examples include automobiles, trains, and production equipment.

1 hoistway, 2 motor, 3 car 4 counterweight, 5 rope, 6 top pulley, 7 suspension weight pulley, 8 car pulley, 9-13, 51-56 smart device, 14 display screen/IF unit, 91 Acceleration sensor 92 Atmospheric pressure sensor 93 Magnetic sensor 94 Vibration sensor 95 Camera 96 Microphone 97 Control unit 98 Communication unit 99 Storage unit 100 Network 200 Server device 201 Control unit 202 Communication unit 203 Storage Section 204 Adapter 300 Terminal Device

Claims (5)

In inspection equipment for mechanical equipment that generates sound or vibration during operation,
a plurality of sensors for measuring information generated by the operation of the mechanical equipment;
Identifying the installation position of the inspection device in the mechanical equipment,
identifying a specific sensor corresponding to the identified installation position from the plurality of sensors using a sensor information list in which information of a measurement target is recorded in association with each installation position of the inspection device;
When it is determined that the operation of the mechanical equipment has started based on the information measured by the first sensor included in the plurality of sensors, start recording the information measured by the specific sensor ;
a control unit that terminates recording of information measured by the specific sensor when the first sensor detects that the operation of the mechanical equipment has ended;
An inspection apparatus for mechanical equipment, comprising a storage unit for storing information according to control by the control unit. In the inspection device for mechanical equipment according to claim 1,
The control unit is characterized in that the recording of information measurable by at least a part of the plurality of sensors is started by starting the operation of the sensors and finished by ending the operation of the sensors. Mechanical equipment inspection equipment. In the mechanical equipment inspection device according to claim 1 or 2,
The mechanical equipment is an elevator,
The inspection apparatus for mechanical equipment, wherein the first sensor is an acceleration sensor that measures acceleration of the elevator. In the mechanical equipment inspection device according to any one of claims 1 to 3,
The plurality of sensors include at least one of a sound sensor that measures sound and a vibration sensor that measures vibration,
The control unit stores information measured by at least one of the sound sensor and the vibration sensor, which are the specific sensors, in the storage unit, and uses the information measured by at least one of the sound sensor and the vibration sensor. and detecting an abnormality in the mechanical equipment. In the mechanical equipment inspection device according to any one of claims 1 to 4 ,
A mechanical equipment inspection apparatus, wherein the plurality of sensors are provided in one device.

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