Recording device, recording method, and program

Abstract

There is provided a recording apparatus including: an acquisition unit configured to be capable of acquiring at least one of measurement data measured by a sensor provided at a specific portion of a device to be monitored at each time point within a specific time period and operation data indicating an operation state of the device to be monitored; a recording unit configured to be able to record the data acquired by the acquisition unit in a storage device; and a transmission unit configured to be able to transmit the data recorded by the recording unit to an external device at a specific timing.

Description

Technical Field

[0001] This disclosure relates to recording devices, recording methods, and procedures. Background Technology

[0002] Techniques for detecting anomalies in industrial machines, etc., based on measurement data obtained by sensors are well known (see, for example, Patent Document 1). References Patent documents

[0003] Patent Document 1: International Patent Application No. WO2020 / 170409 Summary of the Invention Technical issues

[0004] However, in related technologies, it is believed that measurement data obtained by sensors, for example, cannot be properly utilized.

[0005] The purpose of this disclosure is to provide a technique that enables the appropriate use of data for monitoring devices under surveillance. Solution to the problem

[0006] In a first aspect of this disclosure, a recording device is provided, comprising: an acquisition unit configured to acquire at least one of measurement data measured by a sensor located at a specific part of a device to be monitored at various time points within a specific time period and operating data indicating the operating state of the device to be monitored; a recording unit configured to record the data acquired by the acquisition unit in a storage device; and a transmission unit configured to transmit the data recorded by the recording unit to an external device at a specific timing.

[0007] Furthermore, in a second aspect of this disclosure, a recording method is provided, wherein the recording device: acquires at least one of measurement data measured by a sensor located at a specific part of the device to be monitored at various time points within a specific time period and operating data indicating the operating status of the device to be monitored; records the acquired data; and transmits the recorded data to an external device at a specific time interval.

[0008] Furthermore, in a third aspect of this disclosure, a program is provided for enabling a computer to: acquire at least one of measurement data measured by a sensor located at a specific part of a device to be monitored at various points in time within a specific time period and operating data indicating the operating status of the device to be monitored; record the acquired data; and transmit the recorded data to an external device at a specific timing. Beneficial effects of the invention

[0009] According to this disclosure, the data can be appropriately used for monitoring the monitored equipment. Attached Figure Description

[0010] Figure 1 This is a diagram illustrating an example of the construction of a recording system according to one embodiment; Figure 2 This is a diagram used to explain the construction of a recording device according to one embodiment; Figure 3 This is a diagram illustrating an example of the hardware construction of a recording device according to an embodiment; Figure 4 This is a diagram illustrating an example of the computer hardware configuration of a recording device according to an embodiment; Figure 5 This is a flowchart illustrating an example of a process performed by a recording device according to an embodiment; Figure 6 This is a flowchart illustrating an example of a process performed by a recording device according to an embodiment when power supply from a commercial power supply is interrupted. Detailed Implementation

[0011] The principles of this disclosure will be described with reference to exemplary embodiments. It should be understood that these embodiments are described for illustrative purposes only and will assist those skilled in the art in understanding and implementing this disclosure, and do not constitute any limitation on the scope of this disclosure. The disclosure described herein can be implemented in various ways different from those described below. In the following description and claims, unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. In the following description, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0012] <System Structure> Reference Figure 1 The construction of a recording system 1 according to one embodiment will be described. Figure 1 This is a diagram illustrating an example of the construction of a recording system 1 according to one embodiment. Figure 1 In the example shown, the recording system 1 includes a recording device 10, a cloud server 20, a sensor 30, a device to be monitored 40, a sensing device 50, and a controller 60. Note that the number of recording devices 10, cloud servers 20, sensors 30, devices to be monitored 40, sensing devices 50, and controllers 60 are not limited to the following. Figure 1 The number is shown in the example.

[0013] exist Figure 1In the example shown, recording device 10 and cloud server 20 are connected to each other via network N in a manner that enables them to communicate with each other. Examples of network N may include, for example, the Internet, mobile communication systems, wireless local area networks (LANs), and LANs. Examples of mobile communication systems may include, for example, fifth-generation (5G), sixth-generation (6G, Beyond 5G), fourth-generation (4G), and third-generation (3G).

[0014] In addition, Figure 1 In the example shown, recording device 10 and sensing device 50 are connected to each other via cables such as a bus or LAN, and recording device 10 and controller 60 are connected to each other via cables such as a bus or LAN. Recording device 10 records data about the device 40 to be monitored and uploads the recorded data to cloud server 20.

[0015] The cloud server 20 can analyze the operating status and degradation status of the monitored device 40 based on the data uploaded by the recording device 10, and provide the analysis results to the user of the monitored device 40 through the website.

[0016] Sensor 30 is a sensor that is installed in a specific part of the device 40 to be monitored and performs measurements. Sensor 30 can measure, for example, temperature, vibration (velocity, distance, and acceleration), torque, strain, pressure, etc. The sensing device 50 performs analog-to-digital (A / D) conversion on the signal measured by the sensor 30, and outputs the converted signal to the recording device 10.

[0017] The device to be monitored 40 is the source device for the records to be acquired by the recording device 10. The device to be monitored 40 can be, for example, an industrial machine such as an extruder (twin-screw extruder), which produces films or sheets by heating, melting, and mixing resin. Note that the extruder may include a speed reducer that converts the power generated by the motor into a predetermined torque and transmits it to the twin screw. Furthermore, the device to be monitored 40 can be, for example, an extruder or granulator for producing granules, which are raw materials for resin materials. Additionally, the device to be monitored 40 can be an injection molding machine that pours raw materials molten by heat into a mold and molds them. The controller 60 controls the operation of the device to be monitored 40. The controller 60 outputs operating data indicating the operating status of the device to be monitored 40 to the recording device 10.

[0018] <Construction of Recording Device 10> Next, refer to Figure 2 The construction of a recording device 10 according to one embodiment will be described. Figure 2 This is a diagram illustrating an example of the construction of a recording device 10 according to one embodiment. Figure 2 In the example shown, the recording device 10 includes an acquisition unit 11, a recording unit 12, a transmission unit 13, and a control unit 14. Note that the acquisition unit 11, the recording unit 12, and the transmission unit 13 can be implemented by the computer 100 described later. Furthermore, the control unit 14 can be implemented by the power management board 111 described later.

[0019] The acquisition unit 11 acquires at least one of the measurement data measured by the sensor 30 installed in a specific part of the device under monitoring at various time points within a specific time period, and the operating data indicating the operating status of the device under monitoring. The recording unit 12 records the data acquired by the acquisition unit 11 in a storage device located inside or outside the recording device 10. The sending unit 13 sends the data recorded by the recording unit 12 to the cloud server 20 (an example of an "external device") at a specific time interval.

[0020] For example, when control unit 14 detects an interruption in the commercial power supply, control unit 14 uses power from the battery to stop the computer 100 of recording device 10 (e.g., shut down the computer 100 or put the computer 100 into hibernation). Note that shutting down the computer 100 can, for example, be turning off the power to the computer 100 after safely terminating the software running in the operating system of the computer 100 to prevent problems from occurring. Furthermore, hibernating the computer 100 can, for example, be turning off the power to the computer 100 while partially maintaining system operation to speed up the next startup process.

[0021] <Hardware Structure of Recording Device 10> Next, refer to Figure 3 The construction of a recording device 10 according to one embodiment will be described. Figure 3 This is a diagram illustrating an example of the hardware construction of a recording device 10 according to one embodiment. Figure 3 In the example shown, the recording device 10 includes a computer 100, a power management board 111, an uninterruptible power supply (UPS) 112, and an AC adapter 113.

[0022] The UPS 112 and the power management board 111 are connected to each other via power cable 1121 and signal cable 1122. Furthermore, the power management board 111 and the computer 100 are connected via power cable 1111 and signal cable 1112. Signal cable 1112 can be, for example, a LAN cable or an analog cable. Power cable 1111 and signal cable 1112 can be implemented, for example, via a single LAN cable capable of Power over Ethernet (PoE).

[0023] The AC adapter 113 converts the AC power supplied from the commercial power supply by the power company into DC power, etc., and supplies it to the UPS 112, etc., of the recording device 10. The UPS 112 stores the power from the AC adapter 113 in its battery. Note that the battery can be any device that can be repeatedly charged and discharged; examples of such batteries include, for example, supercapacitors and lithium-ion batteries. Furthermore, when the commercial power supply is uninterrupted, the UPS 112 supplies power from the AC adapter 113 to the power management board 111 via power cable 1121. Furthermore, when the commercial power supply is interrupted, the UPS 112 supplies power from the battery to the power management board 111 via power cable 1121. Additionally, when the UPS 112 detects an interruption in the commercial power supply, the UPS 112 sends a signal indicating that the commercial power supply has been interrupted (power failure detection signal) to the power management board 111 via signal cable 1122. In addition, when UPS112 detects that the commercial power supply has been restored (not interrupted), UPS112 sends a signal (restoration detection signal) indicating that the commercial power supply has been restored to power management board 111 via signal cable 1122.

[0024] The power management board 111 can be implemented, for example, using an application-specific integrated circuit (ASIC). The power management board 111 supplies power from the UPS 112 to the computer 100 via power cable 1111. Furthermore, depending on whether a commercial power supply interruption has occurred, the power management board 111 sends commands to the computer 100 via signal cable 1112 to control the computer 100's stop and start. Note that the commands can be sent via analog or digital signals.

[0025] <Computer 100 Hardware Structure> Figure 4 This is a diagram illustrating an example of the hardware configuration of a computer 100 with a recording device 10 according to an embodiment. Figure 4In the example shown, computer 100 includes processor 101, memory 102, and communication interface 103. These components can be interconnected via a bus or the like. Memory 102 stores at least a portion of program 104. Communication interface 103 includes interfaces required for communicating with other network components.

[0026] When program 104 is executed in cooperation with processor 101, memory 102, etc., computer 100 performs at least some of the processes (procedures) in the embodiments of this disclosure. Memory 102 can be any type suitable for a local technology network. As a non-limiting example, memory 102 can be a non-transitory computer-readable storage medium. Furthermore, memory 102 can be implemented using any suitable data storage technology such as semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory, and removable memory. Although only one memory 102 is shown in computer 100, computer 100 may include several memory modules that are physically different from each other. Processor 101 can be of any type. As a non-limiting example, processor 101 may include one or more of a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. Computer 100 may include multiple processors, such as application-specific integrated circuit chips that are time-dependent on a clock synchronized with the main processor.

[0027] Embodiments of this disclosure can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented in hardware, while others can be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device.

[0028] This disclosure also provides at least one computer program product tangibly stored in a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions included in program modules, and executes on a device on a target real or virtual processor to perform processing or methods according to this disclosure. Program modules include routines, programs, libraries, objects, classes, components, data structures, etc., that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of program modules can be combined or divided among program modules as needed. The machine-executable instructions for program modules can be executed in local or distributed devices. In distributed devices, program modules can reside in local and remote storage media.

[0029] Program code used to perform the methods according to this disclosure may be written in any combination of one or more programming languages. This program code is provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device. When executed by the processor or controller, the functions / operations shown in the flowchart and / or the block diagram to be implemented are performed. The program code may execute entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0030] The program can be stored and provided to a computer using any type of non-transitory computer-readable medium. Non-transitory computer-readable media include any type of tangible storage medium. Examples of non-transitory computer-readable media include magnetic storage media, optical-magnetic storage media, optical disc media, semiconductor memory, etc. Magnetic storage media include, for example, floppy disks, magnetic tapes, hard disks, etc. Optical-magnetic storage media include, for example, magneto-optical disks, etc. Optical disc media include, for example, Blu-ray discs, compact discs (CDs), read-only memory (ROM), recordable CDs (R), rewritable CDs (RW), etc. Semiconductor memory includes, for example, solid-state drives, mask ROMs, programmable ROMs (PROMs), erasable PROMs (EPROMs), flash memory ROMs, random access memory (RAM), etc. The program can be provided to a computer using any type of transient computer-readable medium. Examples of transient computer-readable media include electrical signals, optical signals, and electromagnetic waves. Transient computer-readable media can deliver programs to a computer via wired communication lines (e.g., electrical wires and optical fibers) or wireless communication lines.

[0031] <Processing> Next, refer to Figure 5 An example of a process performed by a recording device 10 according to an embodiment will be described. Figure 5 This is a flowchart illustrating an example of the processing performed by the recording device 10 according to one embodiment. Note that the order of the following processes can be appropriately changed as long as no contradiction arises. Furthermore, the following processes can be appropriately executed in parallel as long as no contradiction arises.

[0032] In step S1, the acquisition unit 11 detects that the current date and time is the start time for acquiring measurement data (a specific time, for example, every 3 hours). The start time for acquiring measurement data can be predetermined by the user of the recording device 10. In this case, the recording device 10 can receive information indicating the user-defined time from the cloud server 20, or it can record this information in response to an operation performed by the user in the recording device 10. Furthermore, for example, the cloud server 20 can define the start time for acquiring measurement data. In this case, the cloud server 20 can determine the interval for acquiring measurement data, for example, based on the degree of degradation of the monitored device 40 analyzed based on the measurement data. In this case, for example, the cloud server 20 can determine the interval for acquiring measurement data in a way that the interval becomes shorter as the degree of degradation of the monitored device 40 increases. Thus, for example, it can detect the need for maintenance of the monitored device 40 more quickly.

[0033] Next, the acquisition unit 11 acquires measurement data measured by the sensor 30 at various time points within a specific time period (e.g., 1 minute) (step S2). Here, the acquisition unit 11 may acquire measurement data at a specific sampling frequency (e.g., 2 kHz) within the specific time period, for example. Note that the measurement data measured at various time points within the specific time period may be time-series data used for at least one of frequency analysis, statistical analysis, and information analysis. In this case, the measurement data may, for example, include data representing at least one of the following: temperature, vibration (velocity, distance, and acceleration), torque, strain, and pressure of the device 40 to be monitored.

[0034] Next, the acquisition unit 11 acquires operational data representing the operating state of the monitored device 40 (step S3). Note that this operational data may include data related to the control of the monitored device 40, such as data representing the rotational speed of the screw of the monitored device 40, error records that have occurred in the monitored device 40, etc. Here, the acquisition unit 11 may acquire (receive) the operational data from the controller 60 that controls the operation of the monitored device 40, for example, when the operating state of the monitored device 40 has changed. Note that the processing in step S2 and the processing in step S3 may be executed in parallel or in reverse order.

[0035] Next, the recording unit 12 records the data acquired by the acquisition unit 11 (step S4). Here, the recording unit 12 can record the measurement data in a storage device such as a solid-state drive (SSD) included in an A / D (analog-to-digital) conversion device located between the recording device 10 and the sensor 30. Furthermore, the recording unit 12 can record operational data in a storage device such as an SSD included in the recording device 10.

[0036] Next, the sending unit 13 detects that the current date and time are the scheduled time for uploading data (a specific schedule, for example, once every 24 hours) (step S5). The scheduled time for uploading data can be predetermined by the user of the recording device 10, for example. In this case, the recording device 10 can receive information indicating the user-defined schedule from the cloud server 20 and record this information. In this case, the cloud server 20 can determine the data upload interval based on, for example, the degree of degradation of the monitored device 40 analyzed based on data. Thus, for example, it can detect more quickly that the monitored device 40 needs maintenance. Furthermore, the recording device 10 can record information indicating the user-defined schedule in response to the operation of the recording device 10's operating unit, etc.

[0037] Next, the sending unit 13 sends (uploads) the data recorded by the recording unit 12 to the cloud server 20 (step S6). Thus, the cloud server 20 can provide users with information needed for motion analysis using artificial intelligence (AI) or for maintenance of the monitored device 40 via a website or similar means.

[0038] <<Handling When Power Supply from Commercial Power Supply is Interrupted>> Next, refer to Figure 6 An example of the processing performed by the recording device 10 according to one embodiment when the power supply from the commercial power supply is interrupted will be described. Figure 6 This is a flowchart illustrating an example of the processing performed by the recording device 10 according to one embodiment when power supply from a commercial power supply is interrupted. Note that the order of the following processes can be appropriately changed without causing contradiction.

[0039] Control unit 14 detects that the commercial power supply has been interrupted (power supply from the commercial power supply has been stopped) (step S101). Here, when control unit 14 receives a power failure detection signal from UPS 112, control unit 14 can determine that the commercial power supply has been interrupted.

[0040] Next, the control unit 14 determines whether the current date and time meet a specific condition (step S102). Here, the control unit 14 may determine that the specific condition is met, for example, when the current date and time fall within the time period during which measurement data is acquired by the acquisition unit 11. In this case, the control unit 14 may determine that the specific condition is met when the current date and time are between the start and end times of acquiring measurement data.

[0041] Furthermore, the control unit 14 can determine that a specific condition is met, for example, when the time from the current date and time to the start of acquiring measurement data is within a specific time period (e.g., 1 minute). Note that the control unit 14 can determine the specific time period based on the charging state of the UPS 112's battery. In this case, the control unit 14 can determine the specific time period, for example, in a way that the specific time period becomes longer as the charging state of the UPS 112's battery gets closer to a fully charged state.

[0042] If the current date and time do not meet the specific condition ("No" in step S102), the process proceeds to step S105. Conversely, if the current date and time meet the specific condition ("Yes" in step S102), the control unit 14 uses battery power from the UPS 112 to enable the acquisition unit 11 to acquire measurement data (step S103). Thus, even if an interruption occurs, for example, during the acquisition of measurement data, the measurement data—that is, the set of time-series data to be acquired at that stage—can still be acquired. Therefore, even when, for example, the measurement data is time-series data used for frequency analysis, multiple acquired time-series data can be avoided.

[0043] Next, the control unit 14 uses power from the battery of the UPS 112 to enable the recording unit 12 to record measurement data (step S104). Then, the control unit 14 uses power from the battery of the UPS 112 to stop the computer 100 of the recording device 10 (e.g., to shut down or put the computer 100 into hibernation) (step S105). Here, the control unit 14 can, for example, use digital or analog signals to send a command to the computer 100 to stop the computer 100.

[0044] Next, the control unit 14 detects that the commercial power supply has been restored (the power supply from the commercial power supply has been restarted) (step S101). Here, the control unit 14 can determine that the commercial power supply has been restored when it receives a restoration detection signal from the UPS 112.

[0045] Next, the control unit 14 uses power from the commercial power supply to start the computer 100 of the recording device 10 (step S107), and then ends the process. Here, the control unit 14 can start the computer 100, for example, by means of a method such as Wake On LAN.

[0046] Control unit 14 can, for example, start computer 100 of recording device 10 when the charging level of the battery of UPS 112 reaches or exceeds a threshold after commercial power supply is restored. Thus, even if an interruption occurs again after, for example, control unit 14 has just started computer 100, control unit 14 can appropriately stop computer 100.

[0047] (Record device 10's abnormal notification function) The sending unit 13 can send a notification to a specific contact when an anomaly occurs in the recording device 10. Thus, for example, the user can identify the anomaly in the recording device 10. In this case, the sending unit 13 can send a notification to a specific contact, for example, when an anomaly occurs during data recording performed by the recording unit 12. Furthermore, the sending unit 13 can send a notification to a specific contact, for example, when an anomaly occurs during data upload to the cloud server 20.

[0048] In this case, the sending unit 13 can report the anomaly, for example, through the speaker, light, or display of the recording device 10. Furthermore, the sending unit 13 can, for example, send a notification to a specific email address. Additionally, the sending unit 13 can, for example, send a notification to the cloud server 20 to notify the user of the anomaly via the website of the cloud server 20.

[0049] (Regarding the deletion of records recorded by the recording unit 12 of the recording device 10) exist Figure 5 Step S4 and Figure 6 In step S104 of the process, the recording unit 12 can erase data that does not match specific conditions from multiple data entries that have been recorded within multiple corresponding time periods and for which a first time period (e.g., 30 days) has elapsed. In this case, even after a specific time period has elapsed since the data was recorded, the recording unit 12 can retain data that matches specific conditions without deleting the data. Thus, for example, because specific data is retained in the recording device 10, maintenance personnel or others can retrieve that specific data from the recording device 10.

[0050] In this case, the recording unit 12 may, for example, identify data representing the error state of the monitored device 40, data representing that the monitored device 40 has performed a specific operation, and data of a specific type as data that matches a specific condition. The specific type may, for example, be specified by the user via the cloud server 20.

[0051] <Modification Example> Control unit 14 may be implemented by power management board 111. However, recording device 10 according to this disclosure is not limited thereto. At least some of the processes performed by control unit 14 may be implemented, for example, by computer 100.

[0052] Furthermore, the recording device 10 may be a device included in a housing. However, the recording device 10 according to this disclosure is not limited thereto. Each of the components of the recording device 10 (e.g., the recording unit 12 and the control unit 14) may be implemented, for example, through cloud computing consisting of one or more computers. The aforementioned recording device 10 is also included in the example of a "recording device" according to this disclosure.

[0053] Note that this disclosure is not limited to the above embodiments and can be appropriately modified without departing from the spirit of this disclosure.

[0054] This application is based on and claims priority to Japanese Patent Application No. 2023-043703, filed on March 20, 2023, the disclosure of which is incorporated herein by reference in its entirety. List of reference numerals

[0055] 1. Recording System 10 Recording devices 11 Acquisition Unit 12 Recording Units 13 Transmitting Unit 14 Control Unit 20 cloud servers 30 sensors 40 Devices to be monitored 100 computers 101 processor 102 Memory 103 Communication Interface 104 Program 111 Power Management Board 113 AC Adapter 1111 Power cable 1112 Signal Cable 1121 Power cable 1122 signal cable

Claims

1. A recording device, comprising: The acquisition unit is configured to acquire at least one of measurement data measured by a sensor located at a specific part of the device under monitoring at various time points within a specific time period and operating data representing the operating status of the device under monitoring. The recording unit is configured to record the data acquired by the acquisition unit into a storage device; as well as The transmitting unit is configured to transmit data recorded by the recording unit to an external device at a specific time interval.

2. The recording device of claim 1, further comprising a control unit configured to use power from a battery to shut down the computer of the recording device when the control unit detects an interruption in the commercial power supply.

3. The recording device according to claim 2, wherein, When the control unit detects an interruption in the commercial power supply during the specific time period, the control unit uses power from the battery to enable the acquisition unit to acquire data, uses power from the battery to enable the recording unit to record data, and then stops the computer of the recording device.

4. The recording device according to claim 3, wherein, When the control unit detects an interruption in the commercial power supply during the specific time period and the start time of the specific time period is within a specific time period starting from the current time, the control unit uses power from the battery to enable the acquisition unit to acquire data, uses power from the battery to enable the recording unit to record data, and then stops the computer of the recording device.

5. The recording device according to claim 3 or 4, wherein, When the commercial power supply is restored after an interruption, the control unit activates the computer of the recording device.

6. The recording device according to claim 3, wherein, The measurement data obtained at various time points within the specific time period are time series data used for at least one of frequency analysis, statistical analysis, and information analysis.

7. The recording device according to claim 1, wherein, The monitored device includes at least one of the following: an extruder or granulator configured to produce a film or sheet by heating and melting a resin and mixing the resin; an extruder configured to produce granules, the granules being a raw material for a resin material; and an injection molding machine configured to pour molten raw material into a mold and mold the molten raw material.

8. The recording device according to claim 1 or 2, wherein, The external device is a server in the cloud.

9. The recording device according to claim 1, wherein, The specific timing is a timing represented by at least one of the external device and the user.

10. The recording device according to claim 1, wherein, The sending unit sends a notification to a specific contact in at least one of the following situations: when an anomaly occurs during data recording by the recording unit; and when an anomaly occurs when sending data to the external device.

11. The recording device according to claim 1, wherein, The recording unit erases measurement data that does not match specific conditions from multiple measurement data that were recorded in multiple time periods and then passed through the first time period.

12. A recording method, wherein, Recording equipment: Acquire at least one of the following: measurement data measured by a sensor located at a specific part of the device to be monitored at various time points within a specific time period, and operating data representing the operating status of the device to be monitored; Record the data obtained; and The recorded data is sent to an external device at a specific time interval.

13. A program for causing a computer to: Acquire at least one of the following: measurement data measured by a sensor located at a specific part of the device to be monitored at various time points within a specific time period, and operating data representing the operating status of the device to be monitored; Record the data obtained; and The recorded data is sent to an external device at a specific time interval.

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