Information processing equipment and information processing procedures

Abstract

A monitoring device (100) generates a report based on a physical quantity before maintenance and a physical quantity after maintenance, wherein the physical quantity before maintenance is detected by a sensor (S) prior to initial maintenance to correct an anomaly of a wind energy generation unit (45), the physical quantity after maintenance is detected by the sensor (S) that detected the physical quantity before maintenance, and the monitoring device outputs the report.

Description

TECHNICAL AREA

[0001] The present disclosure relates to an information processing facility and an information processing procedure. STATE OF THE ART

[0002] For example, published Japanese patent application No. 2013-185507 (PTL 1) discloses a condition monitoring system for monitoring the condition of a wind energy generation device. This condition monitoring system comprises a sensor that detects a physical quantity (for example, a vibration value) at a target position of the wind energy generation device. Based on the physical quantity detected by the sensor, the condition monitoring system diagnoses whether or not an anomaly exists. The condition monitoring system then displays a diagnostic result on a monitor terminal. LIST OF CITED PUBLICATION LITERATURE

[0003] PTL 1: Published Japanese patent application no. 2013-185507 BRIEF DESCRIPTION OF THE INVENTIONAL PROBLEM

[0004] If an anomaly in a power generation device, such as a wind turbine, is detected in the condition monitoring system described above, a worker might, for example, perform maintenance on the section where the anomaly was detected. However, with this condition monitoring system, an operator or similar person of the power generation device cannot, for example, determine the physical quantity detected before and after the maintenance.

[0005] The present disclosure was conceived to solve the above problem, and one objective is to enable an operator or the like to obtain knowledge of information about physical quantities based on a physical quantity detected before a maintenance of a power generating device and a physical quantity detected after a maintenance of the power generating device. SOLUTION TO THE PROBLEM

[0006] An information processing device according to the present disclosure relates to a power generating device. The power generating device comprises a sensor that detects a physical quantity about the operation of the power generating device. The physical quantity is used to determine whether an anomaly exists in the power generating device. The information processing device comprises a memory in which the physical quantity is stored and a data processing device.The physical quantity comprises a physical quantity before maintenance and a physical quantity after maintenance. The physical quantity before maintenance is detected by the sensor prior to the initial maintenance to address an anomaly in the power generation equipment and is used to detect the anomaly. The physical quantity after maintenance is detected by the sensor that detected the physical quantity before maintenance after the initial maintenance. The data processing device generates information about the physical quantities based on the physical quantity before maintenance and the physical quantity after maintenance and outputs this information.

[0007] An information processing method according to the present disclosure comprises obtaining a first physical quantity before maintenance and a first physical quantity after maintenance, wherein the first physical quantity before maintenance is detected before the first maintenance of a power generating device and the first physical quantity after maintenance is detected after the first maintenance of the power generating device. The information processing method comprises generating information about physical quantities based on the first physical quantity before maintenance and the first physical quantity after maintenance. The information processing method comprises outputting the information about physical quantities. ADVANTAGEOUS EFFECTS OF THE INVENTION

[0008] According to the present disclosure, an operator or the like may obtain information on physical quantities based on a physical quantity detected before maintenance of the power generating equipment and a physical quantity detected after maintenance of the power generating equipment. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a diagram showing an exemplary configuration of an administrative system 10 within the scope of the present disclosure. Fig. Figure 2 is a diagram illustrating the conservation or similar of a physical quantity. Fig. Figure 3 is a functional block diagram of a monitoring device. Fig. Figure 4 is a diagram illustrating an example of a first report. Fig. Figure 5 is a diagram illustrating an example of a first report. Fig. Figure 6 is a diagram illustrating an example second report. Fig. Figure 7 is a diagram illustrating an example second report. Fig. Figure 8 is a diagram illustrating an example of a first DB. Fig. Figure 9 is a diagram illustrating an example of a second DB. Fig. Figure 10 is a flowchart showing a main processing step by the monitoring device. Fig. 11 is a flowchart showing details of an initial determination processing. Fig. 12 is a flowchart showing details of a second determination processing step. Fig. Figure 13 is a functional block diagram of a monitoring device in a further embodiment. Fig. Figure 14 shows an example screen on a worker terminal. DESCRIPTION OF EXECUTION FORMS

[0009] One embodiment of the present invention is described below with reference to the drawings. Identical or corresponding elements are assigned the same reference numerals in the following drawings, thus avoiding repeated descriptions. <Erste Ausführungsform>

[0010] Fig. Figure 1 is a diagram showing an exemplary configuration of a management system 10 in a first embodiment. In the present disclosure, the management system 10 comprises M (where M is an integer not less than one) wind energy generation unit(s) 45, a monitoring device 100, a user terminal 50, a worker terminal 60, a maintenance terminal 70, and a network NW. A control device 40, which will be described later, a monitoring device 100, and a user terminal 50 can communicate with the worker terminal 60 and the maintenance terminal 70 via the network NW.

[0011] The wind energy generation unit 45 comprises a wind energy generation device 20, a collecting device 30, a control device 40, and a sensor S. The sensor S comprises N (where N is an integer not less than one) vibration sensor(s) Sn (N = 1, ..., N, where N is an integer not less than one) and N voltage sensor(s) SVn. In the present disclosure, the wind energy generation unit 45 corresponds to the “energy generation device”.

[0012] The wind energy generating device 20 is a device that generates electrical energy by capturing wind energy. The wind energy generating device 20 comprises a bearing section, a generator, and the like. Each vibration sensor Sn detects a vibration value at a specified section (e.g., the bearing section) of the wind energy generating device 20. In this disclosure, the vibration value corresponds to the "physical quantity." The vibration value is expressed, for example, by a displacement, a velocity, an acceleration, and the like of the specified section. A vibration value detected by N vibration sensor(s) Sn is output to the collecting device 30.

[0013] The vibration sensor Sn is supplied with voltage by a power supply (not shown). The vibration sensor Sn is operated by the supplied voltage. The vibration sensor Sn is equipped with a voltage sensor SVn, which is connected to it. A voltage value detected by N voltage sensor(s) Svn is output to the collecting device 30.

[0014] The collecting device 30 thus collects the vibration value detected by the vibration sensor Sn and the voltage value detected by the voltage sensor SVn. In this disclosure, "the vibration value detected by the vibration sensor Sn and the voltage value detected by the voltage sensor SVn" correspond to the "physical quantity concerning the operation of the power generating device." The voltage value detected by SVn is also referred to as the "supply voltage value."

[0015] The vibration and voltage values ​​collected by the data collection device 30 are output to the control device 40. The control device 40 detects whether an anomaly exists in the wind energy generation unit 20, as well as any abnormal section, based on the vibration values ​​from the data collection device 30. For example, the control device 40 generates a frequency spectrum by performing a fast Fourier transform (FFT) on the vibration values ​​(time series data) collected over a specific period (e.g., one month). The control device 40 then uses the frequency spectrum to detect whether an anomaly exists in the wind energy generation unit 20, as well as the abnormal section. This physical quantity is thus used to determine whether an anomaly exists in the wind energy generation unit 45.As explained above, the control device 40 performs anomaly detection processing to determine whether or not an anomaly exists in the wind energy generation unit 45, including the control device 40. However, in a further development, the monitoring device 100 can perform the anomaly detection processing.

[0016] In the present embodiment, "anomaly" refers, for example, to damage or the like to the wind energy generating unit 20. The "abnormal section" in the present embodiment includes not only a section in which an anomaly has occurred, but also a section with signs of anomaly. The section with signs of anomaly refers to a section in which no anomaly has yet occurred, but in which an anomaly is expected in the future.

[0017] The control device 40 detects, based on the voltage value from the collecting device 30, whether an anomaly exists in the vibration sensor Sn supplied with that voltage. The value of the voltage supplied to the vibration sensor Sn is predetermined, and a range around the supply voltage value is defined as the normal range. If the voltage value supplied by the collecting device 30 is within the normal range, the control device 40 determines that the vibration sensor Sn supplied with that voltage is normal. If the voltage value supplied by the collecting device 30 is outside the normal range, the control device 40 determines that the vibration sensor Sn supplying the voltage is abnormal.

[0018] The wind energy generating unit 20 is assigned a wind energy generating unit identifier (ID) for identification. The vibration sensor Sn is assigned a vibration sensor ID for identification. The voltage sensor SVn is assigned a voltage sensor ID for identification.

[0019] The control device 40 transmits the physical quantity (the vibration value and the voltage value) collected by the collection device 30 to the monitoring device 100. If the control device 40 detects an anomaly in the wind energy generating unit 20 or an anomaly in the vibration sensor Sn, it transmits anomaly information to the monitoring device 100. The anomaly information includes information about a section (anomalous section) or the like in which an anomaly has occurred. The anomalous section comprises an anomalous section of the wind energy generating unit 20 as well as the vibration sensor Sn in which an anomaly has occurred. The anomalous section of the wind energy generating unit 20 is defined, for example, by the wind energy generating unit ID and the vibration sensor ID.The anomaly of the vibration sensor Sn is defined by the voltage sensor ID of the voltage sensor that detects the voltage supplied to the vibration sensor Sn.

[0020] User terminal 50 is a terminal device belonging to user A. User A is typically the owner of wind energy generating facility 20, for example, a commercial energy producer. User terminal 50 is usually a portable terminal that user A can carry with them. User terminal 50 may be a dedicated computer terminal.

[0021] Maintenance Terminal 70 is a terminal for maintaining the wind energy generating unit 20. If an anomaly occurs in the wind energy generating unit 20, a maintenance worker (B) performs maintenance to correct the anomaly. The monitoring unit 100 requests the maintenance worker to perform maintenance on the wind energy generating unit 20. This anomaly-correcting maintenance is also referred to as "initial maintenance."

[0022] Maintenance Terminal 70 is a terminal operated by a Maintenance Manager D of the Maintenance Service. Maintenance Terminal 70 is, for example, a terminal that receives a maintenance request. Specifically, the Monitoring Unit 100 transmits maintenance information for a maintenance request to Maintenance Terminal 70. A request image based on the maintenance information is displayed on a screen at Maintenance Terminal 70. The request image includes, for example, the address of the wind energy generating unit 20 to be serviced, a time and date for the maintenance, or similar information. Manager D, having visually reviewed the request image, makes arrangements for Worker B to arrive at the address at the time and on the date shown in the image. The term "Worker" typically refers to someone who performs maintenance on the wind energy generating unit 20 to correct any anomalies.

[0023] Worker Terminal 60 is a terminal device belonging to Worker B, who is assigned to Wind Power Generation Unit 20. Worker Terminal 60 is typically a portable terminal that Worker B can carry with them. Worker B enters start and end information into Worker Terminal 60. The start information indicates when Worker B begins maintenance work. The end information indicates when Worker B ends maintenance work. In other words, Worker B enters the start information into Worker Terminal 60 when they begin maintenance work on Wind Power Generation Unit 45. Worker B enters the end information into Worker Terminal 60 when they have finished maintenance work on Wind Power Generation Unit 45.

[0024] In this disclosure, the monitoring device 100 corresponds to the "information processing device relating to the power generation device." The monitoring device 100 is a terminal operated by a manager C. When the monitoring device 100 receives anomaly information, it specifies an abnormal section by analyzing the anomaly information. The monitoring device then transmits the abnormal section to the user terminal 50. Via the user terminal 50, the user A can detect the occurrence of an anomaly in the wind power generation device 20 or the vibration sensor Sn and identify the abnormal section by having the abnormal section displayed on the screen. The monitoring device 100 transmits maintenance information, including the abnormal section, to the maintenance terminal 70. The manager D can thus detect the abnormal section in advance.

[0025] The monitoring device 100 comprises a data processing device 102, a memory 104, and a communication interface 106. The communication interface is in Fig. 1 is represented as a “communication interface”. The data processing device 102 performs various types of processing and calculations. The individual elements are interconnected via a data bus. The memory 104 comprises a read-only memory (ROM), a random-access memory (RAM), and the like.

[0026] The data processing device 102 is implemented by a central processing unit (CPU), a free-programmable gate array (FPGA), a graphics processing unit (GPU), and the like. The data processing device 102 can be implemented by the CPU, the FPGA, and / or the GPU. The data processing device 102 can be implemented by a processing circuit arrangement. The data processing device 102 is also referred to as "at least one processor" or a "processing circuit arrangement."

[0027] Memory 104 comprises a volatile memory area (for example, a working area) in which program code, main memory, or the like is temporarily stored by the data processing device 102 during the execution of a program. Memory 104 includes, for example, random access memory (RAM) and read-only memory (ROM).

[0028] The ROM contains a program to be executed in the data processing device 102. Data or similar items generated as a result of the execution of a program in the data processing device 102 are temporarily stored in RAM. The RAM can serve as temporary data storage, acting as a working area.

[0029] The communication interface 106 is configured to communicate with an external device (control device 40 or the like) of the monitoring device 100.

[0030] Manager C or user A wants to determine, after maintenance of wind energy generating unit 45, whether the abnormal section has been corrected by the maintenance of wind energy generating unit 45.

[0031] In the present embodiment, the monitoring device 100 then generates a report based on a physical quantity before maintenance and a physical quantity after maintenance. The "report" contains information indicating whether the abnormal section was restored by the initial maintenance or not. In this disclosure, the report corresponds to the "information on physical quantities." The monitoring device 100 outputs the report. The report is output, for example, by displaying it on the monitor 100's display, printing it on paper, and the like. Manager C can thus take note of the report.

[0032] Furthermore, the monitoring device 100 transmits the report to the user terminal 50. User A can use the user terminal 50 to determine whether the abnormal section has been corrected by the maintenance (first maintenance) of the wind energy generating unit 45 by viewing the report. If it is determined that the abnormal section has not been corrected, the monitoring device 100 or similar determines whether a second maintenance procedure is necessary. The second maintenance procedure is a further maintenance procedure following the first.

[0033] The "physical quantity before maintenance" refers to a physical quantity detected by sensor S prior to the first maintenance procedure. This physical quantity is used to detect anomalies. In other words, the physical quantity before maintenance encompasses the physical quantity identified as abnormal (abnormal value). The first maintenance procedure serves to correct this anomaly.

[0034] The “physical quantity after maintenance” refers to a physical quantity that is detected after initial maintenance by the sensor that detected the physical quantity before maintenance.

[0035] Fig. Figure 2 is a diagram illustrating the conservation or similar of a physical quantity. The abscissa in Fig. 2 represents a timeline. Fig. 2 shows the times T1 to T6, and the monitoring device 100 recognizes these times T1 to T6.

[0036] The physical quantity prior to maintenance further comprises a first physical quantity prior to maintenance and a second physical quantity prior to maintenance. The first physical quantity prior to maintenance is the physical quantity obtained over a first prescribed period prior to the first maintenance. In other words, the first physical quantity prior to maintenance is the physical quantity that should be obtained over the first prescribed period for the detection of anomalies in the wind energy generating unit 45. The first prescribed period is, for example, set to "one month," similar to the prescribed period mentioned above. The first physical quantity prior to maintenance is, for example, the vibration value detected by the vibration sensor Sn. Fig. Figure 2 shows a period from time T1 to time T3 as the first prescribed period. The first physical quantity before maintenance is the physical quantity obtained over the first prescribed period (time T1 to time T3).

[0037] The second physical quantity obtained before maintenance is an instantaneous value, specifically the physical quantity obtained prior to the first maintenance. In other words, the second physical quantity obtained before maintenance is the one that enables the detection of anomalies in the wind energy generation unit 45, as it is obtained as an instantaneous value. For example, the second physical quantity obtained before maintenance is the voltage value detected by the voltage sensor SVn. Fig. Figure 2 shows time T2 as the time when the second physical quantity is obtained before maintenance. At time T2, the second physical quantity before maintenance (voltage value), which represents an abnormal value, is detected.

[0038] The time T3 in Fig. Time T2 is the point in time when start information is entered into worker terminal 60. Time T4 is the point in time when end information is entered into worker terminal 60. Monitoring device 100 identifies the period from time T3 to time T4 as a period in which initial maintenance is performed (a first maintenance period).

[0039] The physical quantity after maintenance further comprises a first physical quantity after maintenance and a second physical quantity after maintenance. The first physical quantity after maintenance is the physical quantity obtained over a second prescribed period following the first maintenance. In other words, the first physical quantity after maintenance is the physical quantity that should be obtained over the second prescribed period for the purpose of detecting anomalies in the wind energy generating unit 45. The second prescribed period is, for example, set to "one month," similar to the first prescribed period mentioned above. The first prescribed period and the second prescribed period may differ from each other. The first physical quantity after maintenance is, for example, the vibration value recorded by the vibration sensor Sn. Fig. Figure 2 shows a period from time T4 to time T6 as the second prescribed period. The second physical quantity after maintenance is the physical quantity maintained over the second prescribed period (time T4 to time T6).

[0040] The second physical quantity obtained after maintenance is the instantaneous value obtained after the initial maintenance. In other words, the second physical quantity obtained after maintenance is the one that enables the detection of anomalies in the wind energy generation unit 45, as it is obtained as an instantaneous value. For example, the voltage value detected by the voltage sensor SVn is the second physical quantity obtained after maintenance. Fig. Figure 2 shows time T5 as the time when the second physical quantity is obtained after maintenance. At time T5, the second physical quantity after maintenance (voltage value), which represents an abnormal value, is detected. [Functional block diagram of monitoring device 100]

[0041] Fig. Figure 3 is a functional block diagram of the monitoring device 100. The monitoring device 100 comprises a receiver 112, a processing unit 114, a transmitter 116, and a storage unit 118. The receiver 112 and the transmitter 116 correspond to the communication interface 106 in Figure 3. Fig. 1. The processing unit 114 corresponds to the data processing device 102 in Fig. 1. Memory 118 corresponds to memory 104, and at least part of the memory space in memory 104 is used.

[0042] Receiver 112 receives the anomaly information and the physical quantity from control device 40. Receiver 112 receives the start and end information from worker terminal 60. The anomaly information, the physical quantity, etc., received by receiver 112 are output to processing unit 114.

[0043] Processing unit 114 generates a report, described later, when it receives a generation command from a designated terminal. The generation command is a signal that prompts processing unit 114 to generate the report. For example, the designated terminal is worker terminal 60. Worker B, who has performed initial maintenance, enters a designated operation into worker terminal 60, which then transmits the generation command to monitoring unit 100. For instance, worker terminal 60 might transmit the final information as a generation command to monitoring unit 100.The generation command includes the wind energy generating unit ID of the wind energy generating unit on which initial maintenance was performed, information (in the present embodiment the sensor ID) indicating the abnormal section on which initial maintenance was performed, a date of the end of initial maintenance (date of transmission of the end information), and the like.

[0044] The processing unit 114 causes the physical quantity before maintenance (a first physical quantity before maintenance 121 and a second physical quantity before maintenance 122) and the physical quantity after maintenance (a first physical quantity after maintenance 131 and a second physical quantity after maintenance 132), which were detected by all sensors S, to be stored for each wind energy generating facility ID and each sensor ID.

[0045] When processing unit 114 receives the generation command, it provides the wind energy generating unit ID, the sensor ID, and the date of the first maintenance end, which are included in the generation command. Processing unit 114 then extracts from memory 118 the physical quantity before and after maintenance, as detected by the sensor (vibration sensor Sn or voltage sensor SVn) specified by the sensor ID in the wind energy generating unit 20 specified by the wind energy generating unit ID.

[0046] For example, if the sensor ID contained in the generation command is the ID of vibration sensor Sn, the processing unit 114 retrieves the physical quantity corresponding to vibration sensor Sn from storage 118. In other words, the processing unit 114 retrieves from storage 118 the first physical quantity before maintenance 121 for the first prescribed period and the first physical quantity after maintenance 131 for the second prescribed period, which have been corresponded to vibration sensor Sn. Storing and retrieving the first physical quantity before maintenance 121 for the first prescribed period is achieved by the monitoring device 100 discarding the physical quantity for the first prescribed period (i.e., one month) prior to the current time, while continuously retrieving the physical quantity from sensor S.The storage and retention of the first physical quantity after a maintenance 131 for the second prescribed period is carried out by a processing loop in step S6 and step S8 in . Fig. 10 is reached, which will be described later.

[0047] The processing unit 114 then generates a first report, described later, based on the first physical quantity before maintenance 121 and the first physical quantity after maintenance 131. Typically, the processing unit 114 compares the first physical quantity before maintenance 121 and the first physical quantity after maintenance 131 and generates the first report based on the comparison result. In this disclosure, the first report corresponds to the "information on first physical quantities." The transmitter 116 transmits the first report generated by the processing unit 114 to the user terminal 50, which corresponds to the wind energy generation facility ID (see Fig. 8, which will be described later).

[0048] If the sensor ID contained in the generation command is the ID of the voltage sensor SVn, the processing unit 114 retrieves from storage 118 the physical quantity (i.e., the second physical quantity before maintenance 121 and the second physical quantity after maintenance 132) that has been aligned with the voltage sensor SVn. The processing unit 114 then generates a second report, described later, based on the second physical quantity before maintenance 122 and the second physical quantity after maintenance 132. Typically, the processing unit 114 compares the second physical quantity before maintenance 121 and the second physical quantity after maintenance 132 and generates the second report based on the result of this comparison. In this disclosure, the second report corresponds to the "information on second physical quantities".Transmitter 116 transmits the second report generated by processing unit 114 to user terminal 50.

[0049] If processing unit 114 determines that the abnormal section has not been corrected by initial maintenance, it transmits maintenance information for a request for further maintenance (second maintenance) to maintenance terminal 70. [Report]

[0050] The report generated by processing unit 114 (the first report and the second report) will now be described. Fig. Figure 4 shows an example of a first report 301A. Fig. 4 and Fig. Figure 5, which will be described later, illustrates an example where an anomaly occurred in the bearing section of the wind energy generating unit 20, and initial maintenance was performed to correct the anomaly. The first report, 301A, is an example report that is generated when the bearing section (the anomalous section) that underwent initial maintenance has been restored by the initial maintenance.

[0051] In the example in Fig. 4. The first report 301A comprises first transition information 201, second transition information 202, and result information 203. In connection with the first transition information 201 and the second transition information 202, the abscissa represents time and the ordinate represents the vibration value. Fig. Figure 4 or the like indicates an upper vibration limit ThVH. In the present embodiment, if the vibration value is less than the upper vibration limit ThVH, the control device 40 determines that a section corresponding to the vibration value is considered a normal section. If the vibration value is equal to or greater than the upper vibration limit ThVH, the control device 40 determines a section corresponding to the vibration value as an abnormal section.

[0052] The first transition information 201 is information that indicates a transition of the first physical quantity before maintenance over the first prescribed period. Specifically, the first transition information 201 is an image that visualizes a first physical quantity before maintenance 121.

[0053] The second transition information 202 is information that indicates a transition of the first physical quantity after maintenance over the second prescribed period. Specifically, the second transition information 202 is an image that visualizes a first physical quantity after maintenance 131.

[0054] In the example in Fig. 4 specifies that the processing unit 114, based on a comparison between a first physical quantity before maintenance 121 (first transition information 201) and a first physical quantity after maintenance 131 (second transition information 202), the vibration value before maintenance is equal to or greater than the upper vibration limit ThVH, but after maintenance the vibration value is less than the upper vibration limit ThVH. Therefore, the processing unit 114 determines that the first physical quantity after maintenance 131 shows an improvement and determines as a result (effect) of the first maintenance that the bearing section (abnormal section) that underwent the first maintenance has been restored. The processing unit 114 generates a first report 301A, which includes result information 203 indicating the effect. In the example in Fig. 4. The result information 203 is an image with the text "Storage section was restored through maintenance". The fact that the first physical quantity shows an improvement after maintenance 131 refers, for example, to the fact that a mean value of first physical quantities after maintenance 131 for the first prescribed period is smaller than a mean value of first physical quantities before maintenance 121 for the second prescribed period.

[0055] Fig. Figure 5 shows an example of a first report 301B. The first report 301B is an example report that is generated when initial maintenance of the bearing section (abnormal part) has been performed, but the bearing section has not been restored.

[0056] In the example in Fig. 5 The first report includes first transition information 201, second transition information 202, result information 204, maintenance type information 205, precaution information 206 and estimate amount information 207.

[0057] In the example in Fig. 5. Processing unit 114 compares a first physical quantity before maintenance 121 (first transition information 201) and a first physical quantity after maintenance 131 (second transition information 202). The vibration value before the first maintenance is equal to or greater than the upper vibration limit ThVH, and the vibration value after the first maintenance is also equal to or greater than the upper vibration limit ThVH. Therefore, processing unit 114 determines that the first physical quantity after maintenance 131 shows no improvement and determines, as a result of the first maintenance, that the bearing section (abnormal section) that underwent the first maintenance has not been restored.

[0058] Furthermore, processing unit 114 specifies a maintenance type for restoring the abnormal section, which is then continued. Processing unit 114 then generates maintenance type information 205. The maintenance type indicates the type of the second maintenance described above. Processing unit 114 also specifies an estimated amount for the maintenance type. Processing unit 114 then generates estimated amount information 207. The specification of the maintenance type and the estimated amount are based on… Fig. 9 described, which will be discussed later.

[0059] Processing unit 114 automatically makes arrangements for a second maintenance procedure by transmitting maintenance information to maintenance terminal 70. Processing unit 114 then generates preparation information 206.

[0060] Processing unit 114 generates an initial report 301B, which includes result information 204, maintenance type information 205, precautionary information 206, and estimated amount information 207. In the example in Fig. 5. The result information 204 is an image with the text "Storage section was serviced but not restored". The maintenance type information 205 is an image with the text "Detailed diagnosis is recommended". The precautionary information 206 is an image with the text "Precautions for a detailed diagnosis have been taken". The estimated amount information 207 is an image with the text "The detailed diagnosis is estimated at C1 yen".

[0061] Fig. Figure 6 shows an example of a second report 302A. Fig. 6 and Fig. Report 7, described later, illustrates an example where an anomaly occurred in the vibration sensor Sn of the wind energy generating unit 20, and initial maintenance was performed to correct the anomaly. Report 302A is an example report generated when the vibration sensor Sn (anomalous section), which underwent initial maintenance, has been restored to working order by that initial maintenance.

[0062] In the example in Fig. 6 The second report 302A comprises first instantaneous value information 211, second instantaneous value information 212, and result information 213. In the present embodiment, if the voltage value is equal to or greater than a lower voltage limit ThEL and less than an upper voltage limit ThEH, the control device 40 determines the vibration sensor supplied with a voltage corresponding to the voltage value as a normal section. If the voltage value is less than the lower voltage limit ThEL or equal to or greater than the upper voltage limit ThEH, the control device 40 determines the vibration sensor supplied with a voltage corresponding to the voltage value as an abnormal section.

[0063] The first instantaneous value information 211 is information that specifies the instantaneous value of a second physical quantity before maintenance 122. The example in Fig. Figure 2 shows a voltage value V1 as an instantaneous value of a second physical quantity before maintenance 122. The voltage value V1 is equal to or greater than an upper voltage limit ThEH, i.e., an abnormal value.

[0064] The second instantaneous value information 212 is information that specifies the instantaneous value of a second physical quantity after a maintenance operation 132. The example in Fig. Figure 2 shows a voltage value V2 as the instantaneous value of a second physical quantity after maintenance 132. In other words, the voltage value V2 is the value of the voltage applied to the vibration sensor (the vibration sensor where an anomaly occurred) after initial maintenance. The voltage value V2 is equal to or greater than the lower voltage limit ThEL and less than the upper voltage limit ThEH, thus representing a normal value.

[0065] In the example in Fig. Section 6 specifies that the processing unit 114, based on a comparison between a second physical quantity before maintenance 122 (first instantaneous value information 211) and a second physical quantity after maintenance 132 (second instantaneous value information 212), before the first maintenance the voltage value is equal to or greater than the upper voltage limit ThEH, but after the first maintenance the voltage value is equal to or greater than the lower voltage limit ThEL and less than the upper voltage limit ThEH. Therefore, as a result (effect) of the first maintenance, the processing unit 114 determines that the vibration sensor (abnormal section) that underwent the first maintenance has been restored. The processing unit 114 generates a second report 302A, which includes result information 213 indicating the effect. In the example in Fig. 6 are the result information 213 an image with the text “Vibration sensor was restored through maintenance”.

[0066] Fig. Figure 7 shows an example of a second report 302B. The second report 302B is an example report that is generated when the vibration sensor (abnormal section) has undergone initial maintenance but has not been repaired.

[0067] In one example in Fig. 7 The second report 302B includes first instantaneous value information 211, second instantaneous value information 212, result information 214, maintenance type information 215, precautionary information 216 and estimated amount information 217.

[0068] In the example in Fig. 7. Processing unit 114 compares a first physical quantity before maintenance 121 (first instantaneous value information 211) and a first physical quantity after maintenance 131 (first transition information 201). The voltage value before the first maintenance is equal to or greater than the upper voltage limit ThEH, and the voltage value after the first maintenance is also equal to or greater than the upper voltage limit ThEH. Therefore, as a result of the first maintenance, processing unit 114 determines that the voltage value has not improved and the vibration sensor (abnormal section) has not been restored.

[0069] Processing unit 114 specifies the type of maintenance for restoring the abnormal section, which will continue. Processing unit 114 then generates maintenance type information 215. The maintenance type indicates the type of the second maintenance described above. Furthermore, processing unit 114 specifies the estimated amount of the maintenance type. Processing unit 114 then generates estimated amount information 217. The specification of the maintenance type and the estimated amount are based on Fig. 9 described, which will be discussed later.

[0070] Processing unit 114 makes arrangements for a second maintenance procedure by transmitting maintenance information to maintenance terminal 70. Processing unit 114 then generates preparation information 216.

[0071] The processing unit 114 generates a second report 302B, which includes result information 214, maintenance type information 215, arrangement information 216, and estimate scope information 217. In the example in Fig. 7. The result information 214 is an image with the text "Vibration sensor was serviced but not repaired". The maintenance information 215 is an image with the text "Replacement of the vibration sensor is recommended". The precautionary information 216 is an image with the text "Precautions have been taken to replace the vibration sensor". The estimated amount information 217 is an image with the text "Estimated amount for replacing the vibration sensor is C3 Yen".

[0072] Since the first report shows the transition of the physical quantity, it is a detailed report. Since the second report gives the instantaneous value of the physical quantity, it is a simplified report. [Database]

[0073] A first database (DB) 141 and a second DB 142 are now described. Fig. Figure 8 is a diagram showing an example of a first DB. In the first DB 141, the wind energy generating facility ID and the user terminal ID are matched. For example, a user terminal ID: U1 is matched with a wind energy generating facility ID: W1.

[0074] Processing unit 114 specifies the user terminal ID, which corresponds to the wind energy generation facility ID contained in the generation command, by referencing the first data block. Processing unit 114 then transmits the generated report to user terminal 50 with the specified user terminal ID.

[0075] Fig. Figure 9 is a diagram showing an example of a second database (DB 142). In the second DB 142, the maintenance ID, status, maintenance details, and estimated amount are correlated. Processing unit 114 generates the report by referencing the second DB. Fig. 9.

[0076] The "Maintenance ID" is an ID assigned to the maintenance type. The "Status" is defined based on the physical dimensions before and after maintenance. The "Maintenance Details" refer to details of a second maintenance procedure. The estimated amount is the estimated cost of a second maintenance procedure.

[0077] If, for example, the vibration value does not improve before and after initial maintenance, processing unit 114 determines whether to recommend a second maintenance procedure, which is specified as maintenance ID: A1. This case corresponds, for example, to the status indicated by the in Fig. The first transition information 201 and second transition information 202 shown in section 5 are specified. The second maintenance, indicated as Maintenance ID: A1, is a first precise diagnosis of an affected section (in the example described above, the storage section), and the estimated amount is C1 yen (see also Fig. 5).

[0078] In an example where the vibration value has improved after initial maintenance compared to the value before the initial maintenance (the vibration value has decreased), but is still outside the normal range, processing unit 114 determines that a second maintenance is recommended, designated as Maintenance ID: A2. This is analogous to an example where the vibration value has decreased after initial maintenance compared to the vibration value before the initial maintenance (indicating an improvement), but the vibration value after the initial maintenance is equal to or greater than the upper vibration limit ThVH. The second maintenance, designated as Maintenance ID: A2, is a second precise diagnosis of the relevant section (in the example described above, the bearing section), and the estimated cost is C2 yen.

[0079] If the supply voltage value does not improve before and after the first maintenance, processing unit 114 determines whether a second maintenance is recommended, which is indicated as maintenance ID: A3. This case corresponds, for example, to a status indicated by the in Fig. The first instantaneous value information 211 and the second instantaneous value information 212 are shown in Figure 7. The second maintenance, indicated as Maintenance ID: A3, is a first accurate diagnosis of a relevant sensor (in the example described above, the vibration sensor), and the estimated amount is C3 yen (see also...). Fig. 5).

[0080] In an example where the supply voltage value has improved compared to the first maintenance (in an example where the supply voltage value before the first maintenance was equal to or greater than the upper voltage limit ThEH, the supply voltage value has decreased; in an example where the supply voltage value before the first maintenance was less than the lower voltage limit ThEL, the supply voltage value has increased), but the supply voltage value is not within the normal range, processing unit 114 determines that a second maintenance procedure is recommended, designated as Maintenance ID: A4. The second maintenance procedure, designated as Maintenance ID: A4, is a detailed diagnosis of the sensor in question (in the example described above, the vibration sensor), and the estimated cost is C4 yen.

[0081] If detectable noise is identified in a supply voltage waveform before and after initial maintenance, processing unit 114 determines whether to recommend a second maintenance procedure, designated as Maintenance ID: A5. This corresponds, for example, to a case where detectable noise is caused by interference (noise or the like) due to the operation of wind energy generating unit 20. The second maintenance procedure, designated as Maintenance ID: A5, is a general inspection of wind energy generating unit 45, and the estimated cost is C5 yen. [Flow chart]

[0082] Fig. Figure 10 is a flowchart showing the main processing step by the monitoring device 100. In step S2, the monitoring device 100 determines whether it has received the production command. The monitoring device 100 remains ready until it receives the production command (NO in step S2). If the monitoring device 100 has received the production command (YES in step S2), the process proceeds to step S4.

[0083] In step S4, the monitoring device 100 analyzes the generation command to determine which of the first and second reports it should generate based on the sensor ID. If the monitoring device determines that the first report should be generated (YES in step S4), the process proceeds to step S6, and if the monitoring device determines that the second report should be generated (NO in step S4), the process proceeds to step S14.

[0084] In step S6, the monitoring device 100 determines whether the vibration values ​​for the second prescribed period (see Fig. 2) accumulated after the first maintenance. If the vibration values ​​for the second prescribed period (see Fig. 2) were not accumulated (NO in step S6), the monitoring device 100 continues in step S8 to obtain the vibration value. If the vibration values ​​for the second prescribed period (see Fig. 2) If the values ​​have been accumulated (YES in step S6), the process proceeds to step S10.

[0085] In step S10, the monitoring device 100 determines the vibration value (i.e., the first physical quantity before maintenance 121) before the first maintenance and the vibration value (i.e., the first physical quantity after maintenance 131) after the first maintenance. The monitoring device 100 then performs an initial determination process in step S12, which is described later. Once the monitoring device 100 has completed the initial determination process, the process proceeds to step S18.

[0086] In step S14, the monitoring device 100 receives the supply voltage value before the first maintenance and the supply voltage value after the first maintenance. The monitoring device 100 then performs a second determination process in step S16, which will be described later. Once the monitoring device 100 has completed the second determination process, the process proceeds to step S18.

[0087] Fig. Figure 11 is a flowchart showing details of the initial determination process in step S12. Monitoring device 100 determines whether the vibration value has improved. If the vibration value has not improved (NO in step S122), monitoring device 100 determines in step S124 whether to recommend a second maintenance procedure, specified as Maintenance ID: A1, with reference to the second data block.

[0088] If the vibration value has improved (YES in step S122), the monitoring device 100 determines in step S126 whether the vibration value is within the normal range. If the vibration value is within the normal range (YES in step S126), the monitoring device 100 determines in step S130 that no second maintenance is required. If the vibration value is not within the normal range (NO in step S126), the monitoring device 100 determines in step S128 that a second maintenance is recommended, which is specified as maintenance ID: A2, with reference to the second data block.

[0089] Fig. Figure 12 is a flowchart showing details of the second determination process in step S16. Monitoring device 100 determines whether the supply voltage value has improved. If the supply voltage value has not improved (NO in step S142), monitoring device 100 determines in step S144 to recommend a second maintenance procedure, specified as Maintenance ID: A3, with reference to the second data block.

[0090] If the supply voltage value has improved (YES in step S142), the monitoring device 100 determines in step S146 whether the supply voltage value is within the normal range. If the supply voltage value is within the normal range (YES in step S146), the monitoring device 100 determines in step S150 whether the waveform of the supply voltage value contains noise.

[0091] If the supply voltage waveform contains no noise (NO in step S150), the monitoring device 100 determines in step S154 that no second maintenance is required. If the supply voltage value is outside the normal range (NO in step S146), the monitoring device 100 determines in step S148 that a second maintenance is recommended, which is specified as Maintenance ID: A4, with reference to the second data block. If the supply voltage waveform contains noise (YES in step S150), the monitoring device 100 determines in step S152 that a second maintenance is recommended, which is specified as Maintenance ID: A5, with reference to the second data block.

[0092] The description is given with reference to Fig. 10. In step S18, based on a result of the determination processing in step S12 or step S16, it is determined whether recommended maintenance (second maintenance) is required. If recommended maintenance is required (YES in step S18), monitoring device 100 specifies the estimated amount in step S20 with reference to the second DB, and in step S22, monitoring device 100 transmits maintenance information to maintenance terminal 70 to make arrangements for second maintenance. The maintenance information includes whether the physical quantity has improved and / or whether the physical quantity is within the normal range.

[0093] If no recommended maintenance is required (NO in step S18), monitoring device 100 generates the report in step S24. For example, the report generated when the determination in step S18 is NO is the first report in... Fig. 4 or the second report in Fig. 6. The report that is generated if the determination in step S18 is YES is, for example, the first report in Fig. 5 or the second report in Fig. 7.

[0094] In step S26, the monitoring device 100 then transmits the generated report to the user terminal 50. As explained above, the first report is created after the loop consisting of steps S6 and S8 has finished. The second report, however, is generated immediately after the monitoring device 100 receives the generation command, since this loop is not executed. [Summary]

[0095] (1) In the present embodiment, an anomaly is detected in a wind energy generating unit 45, and worker B performs initial maintenance to correct the anomaly. Manager C or the like may wish to ascertain the effect or the like of the initial maintenance. When this initial maintenance is completed, the monitoring device 100 then generates the report (first report 301 or second report 302, shown in Fig. 4, Fig. 5, Fig. 6 to Fig. 7) based on the physical quantity before maintenance (first physical quantity before maintenance 121 in Fig. 4 or second physical quantity before maintenance 122 in Fig. 5) and the physical quantity after maintenance (first physical quantity after maintenance 131 in Fig. 4 or second physical quantity after maintenance 132 in Fig. 5) and issues the report. Therefore, Manager C or the like of Monitoring Unit 100 can review the report based on the physical quantity detected before the maintenance of the power generation unit and the physical quantity detected after the maintenance of the power generation unit.

[0096] (2) The monitoring device 100 generates a first report 301 ( Fig. 4 and Fig. 5) based on a first physical quantity before maintenance 121 and a first physical quantity after maintenance 131. In addition, the monitoring device 100 generates the second report based on a second physical quantity before maintenance 122 and a second physical quantity after maintenance 132. Therefore, the monitoring device 100 can generate the report according to the type of physical quantity before maintenance and the physical quantity after maintenance.

[0097] (3) The monitoring device 100 generates the first report 301 with first transitional information 201 and the second transitional information as described in Fig. 4 and Fig. 5 shown. Therefore, the manager C or the like can detect a transition of the first physical quantity before maintenance and a transition of the first physical quantity after maintenance.

[0098] (4) The monitoring device 100 generates a second report 302 with first instantaneous value information 211 and second instantaneous value information 212 as described in Fig. 6 and Fig. Figure 7 shows that the manager C, or the like, can determine the instantaneous value of the second physical quantity before maintenance and the instantaneous value of the second physical quantity after maintenance.

[0099] (5) The monitoring device 100 generates the first report if the generation command includes information (the ID of the vibration sensor) indicating the generation of the first report, as described in step S2 and step S4 in Fig. Figure 10 shows that the monitoring device 100 generates the second report if the generation command includes information (the voltage sensor ID) that specifies the generation of the second report. Therefore, the monitoring device 100 can automatically determine which of the first and second reports should be generated. This reduces the effort required by Manager C or similar personnel to decide whether to generate the first report (detailed version) or the second report (simplified version).

[0100] (6) The first physical quantity before maintenance and the first physical quantity after maintenance are each the physical quantity (vibration value) detected by the vibration sensor Sn. Therefore, the manager C or the like can determine the physical quantity (vibration value) before and after initial maintenance of a prescribed section of the wind energy generating unit 45.

[0101] (7) The second physical quantity before maintenance and the second physical quantity after maintenance are each the value of the voltage supplied to the vibration sensor Sn. Therefore, the manager C or the like can determine the value of the supply to the vibration sensor Sn before the first maintenance and the value of the supply to the vibration sensor Sn after the first maintenance.

[0102] (8) The report (first report 301A in Fig. 4 or similar) includes result information 203, which indicates the outcome of the initial maintenance. Therefore, the manager or similar can determine the outcome of initial maintenance.

[0103] (9) The report (first report 301B in Fig. 5 or the like) includes estimated amount information 207 for a second maintenance. The manager or the like can therefore determine the estimated amount of a second maintenance to be performed.

[0104] (10) The monitoring device 100 outputs maintenance information indicating that a second maintenance procedure is required to the maintenance terminal 70 of the worker performing the second maintenance. Therefore, the monitoring device 100 can automatically issue a request for a second maintenance procedure to the worker performing the second maintenance procedure.

[0105] (11) The maintenance information indicating that a second maintenance procedure is required is issued to the maintenance terminal 70 of the worker performing the second maintenance. Therefore, the monitoring device 100 can automatically issue a request for a second maintenance procedure to the worker performing the second maintenance procedure. Thus, for example, the monitoring device 100 can reduce the effort required by user A in issuing the request for a second maintenance procedure.

[0106] (12) The maintenance information includes information indicating an improvement in the physical quantity after maintenance compared to the physical quantity before maintenance, and / or information indicating whether the physical quantity after maintenance is within the normal range. Therefore, the worker performing a second maintenance procedure can determine before the second maintenance whether there has been an improvement in the physical quantity after maintenance compared to the physical quantity before maintenance, and / or whether the physical quantity after maintenance is within the normal range. This can reduce the worker's effort in preparing for or otherwise preparing for a second maintenance procedure.

[0107] (13) The monitoring device 100 transmits the report to the user terminal 50, which corresponds to the wind energy generating unit 45 undergoing initial maintenance. Therefore, the user A (owner) of the energy generating unit can take note of the report. <Zweite Ausführungsform>

[0108] For example, M (where M is an integer not less than one) wind energy generating unit(s) can be associated. More precisely, wind energy generating units of M are associated with each other. “Association” means, for example, that M wind energy generating units are identical in their configuration and that the M wind energy generating units constitute the same wind farm WF. Therefore, an environment (temperature, humidity, air volume, or the like) outside the M energy generating units is similar. In further development, “association” can be a concept that includes at least one of the following conditions: a condition that the start-up time of the M wind energy generating units is the same, and a condition that the M wind energy generating units are identical in terms of the model.

[0109] The M wind energy generating facilities comprise “one wind energy generating unit 45” (first wind energy generating unit) and “another wind energy generating unit 45 (second wind energy generating unit)”. “One wind energy generating unit 45” and “another wind energy generating unit 45” are associated with each other.

[0110] In the present embodiment, it is assumed that an anomaly has been detected in a wind energy generation unit 45. “A wind energy generation unit 45” and “another wind energy generation unit 45” are associated with each other. Therefore, an anomaly that has occurred in one wind energy generation unit 45 tends to occur in another wind energy generation unit 45 as well. Furthermore, even if the anomaly in the wind energy generation unit 45 in which it was detected has been corrected, the same anomaly tends to reoccur in another wind energy generation unit 45.

[0111] In view of such a tendency, the monitoring device 100 in the present embodiment performs a change control to modify a monitoring parameter 530 based on anomaly information about an anomaly in a wind energy generating unit 45. The monitoring parameter 530 is a parameter used to monitor the wind energy generating unit 45. The change control is a control to improve the accuracy in detecting anomalies or anomaly indicators of the M wind energy generating unit(s), which comprise "one wind energy generating unit 45" and "another wind energy generating unit 45". The anomaly information is information indicating an abnormal section or a section with anomaly indicators of the wind energy generating unit 45. The anomaly information can be information (e.g.,the vibration value or supply voltage value described above), which are used by the monitoring device 100 to specify the abnormal section or the section with anomaly signs of the wind energy generating unit 45.

[0112] A wind energy generation unit 45 and another wind energy generation unit 45 are configured as follows. In one wind energy generation unit 45, at least one first sensor (vibration sensor Sn and voltage sensor SVn) is arranged, which detects the physical quantity via its operation. In another wind energy generation unit 45, at least one second sensor (vibration sensor Sn and voltage sensor SVn) is arranged, which detects the physical quantity via its operation. The type of physical quantity detected by the at least one first sensor is the same as the type of physical quantity detected by the at least one second sensor. A section of the arrangement of the at least one first sensor in one wind energy generation unit 45 is identical to a section of the arrangement of the at least one second sensor in another wind energy generation unit 45.The monitoring device 100 detects an anomaly or anomaly indicator of another energy generation device based on the physical quantity detected by the at least one second sensor and the monitoring parameter 530 changed by the change control.

[0113] The second embodiment describes an example in which artificial intelligence (AI) is used to perform change control of the monitoring parameter 530. The monitoring parameter 530 includes, for example, a threshold for the operation of the wind energy generation unit 45. The threshold includes, for example, the upper vibration limit ThVH, the upper voltage limit ThEH, the lower voltage limit ThEL, and the like, as described above.

[0114] Fig. Figure 13 is a functional block diagram of the monitoring device 100 according to the present embodiment. As in Fig. As shown in Figure 13, the monitoring device 100 comprises a detection unit 522, a change unit 526, and an estimator 1102. A trained model 123 is stored in a memory location 528, along with a monitoring parameter 530. The trained model 123 comprises a neural network 1211 and a parameter 1212. The parameter 1212 consists of a weighting coefficient and a criterion value. The trained model 123 is trained by supervised training, unsupervised training, or the like. In supervised training, for example, a combination of the anomaly information and the monitoring parameter, or a combination of maintenance information and the monitoring parameter, as described later, is used as training data.

[0115] The acquisition unit 522 receives anomaly information and a maintenance result from a prescribed terminal. The anomaly information is received, for example, from the control device 40. The maintenance result is received from the worker terminal 60. In this disclosure, the control device 40 and the worker terminal 60 correspond to the "prescribed terminal".

[0116] The estimator 1102 estimates the monitoring parameter 530 based on input data provided by the acquisition unit 522 and the trained model 123, which comprises the neural network 1211. The change control is used to change the monitoring parameter 530 stored in memory 528 into an estimated monitoring parameter 530.

[0117] As shown below, the estimator 1102 estimates the monitoring parameter 530 to improve accuracy in detecting an anomaly or anomaly indicators of "another wind energy generating unit 45" and "a wind energy generating unit 45 where the anomaly has been corrected." A specific description follows. The monitoring device 100 begins monitoring a wind energy generating unit 45 when the amount of electricity generated by that unit for a first prescribed period (e.g., one week) exceeds a first threshold. The monitoring device 100 begins monitoring another wind energy generating unit 45 when the amount of electricity generated by that unit for the first prescribed period exceeds a second threshold. The monitoring parameter 530 includes the second threshold.Estimator 1102 then estimates that the second threshold (monitoring parameter 530) is lower than the first threshold. With such a configuration, the start time for monitoring another wind energy generation unit 45 can be set earlier, allowing anomalies in another wind energy generation unit 45 to be detected early. This improves the accuracy of anomaly detection in another wind energy generation unit 45.

[0118] The monitoring device 100 monitors one wind energy generation unit 45 in each initial period. The monitoring device 100 monitors another wind energy generation unit 45 in each subsequent period. The monitoring parameter 530 covers the second period. The estimator 1102 then estimates that the second period (monitoring parameter 530) is shorter than the first period. With such a configuration, the monitoring frequency of an additional wind energy generation unit 45 can be improved, allowing anomalies in this unit to be detected early.

[0119] The monitoring device 100 monitors a wind energy generation unit 45 by using an intensity for each first frequency band in a first frequency spectrum of a wind energy generation unit 45, which is generated based on the physical quantity (e.g., the vibration value) detected by the at least one first sensor. The monitoring device 100 monitors another wind energy generation unit 45 by using an intensity for each second frequency band in a second frequency spectrum of another wind energy generation unit 45, which is generated based on the physical quantity detected by the at least one second sensor. The anomaly information includes an anomalous frequency band in the first frequency spectrum, which becomes a factor for the anomalous section or the section with anomaly signs. The monitoring parameter 530 includes the second frequency band.Estimator 1102 then estimates that the second frequency band (monitoring parameter 530) in a band that includes the anomalous frequency band is narrower than the first frequency band. With such a configuration, the intensity resolution in the frequency spectrum used to monitor another wind energy generation unit 45 can be improved, allowing anomalies of another energy generation unit to be detected early. Therefore, an anomaly of another wind energy generation unit 45 can be detected early.

[0120] The monitoring device 100 monitors a wind energy generating unit 45 based on the physical quantity detected by the at least one first sensor and a third threshold (upper vibration limit ThVH, upper voltage limit ThEH, and lower voltage limit ThEL). The monitoring device 100 monitors another wind energy generating unit 45 based on the physical quantity detected by the at least one second sensor and a fourth threshold (upper vibration limit ThVH, upper voltage limit ThEH, and lower voltage limit ThEL). A range greater than or less than the third threshold is an undetected range in which an anomaly of a wind energy generating unit 45 will not be detected. The monitoring parameter 530 includes the fourth threshold.The estimator 1102 then estimates the fourth threshold (monitoring parameter 530) such that the fourth threshold, which corresponds to the abnormal section or the section with anomaly signs, belongs to the undetected area.

[0121] According to such a configuration, the threshold (fourth threshold) to be used for monitoring another wind energy generation unit 45 is changed in conjunction with the third threshold into the undetected range, so that an anomaly of another wind energy generation unit 45 can be detected early.

[0122] The control system, in which estimator 1102 estimates the monitoring parameter 530, which is to be used for monitoring another wind energy generation unit 45, is mainly described in the preceding example. However, estimator 1102 can also estimate the monitoring parameter 530, which is used to monitor a single wind energy generation unit 45. With such a configuration, the accuracy of detecting anomalies or anomaly indicators that may recur in a wind energy generation unit 45 can be improved.

[0123] The maintenance result will now be described. The maintenance result is information entered into worker terminal 60 by worker C. Worker C is a person who performed maintenance on the wind energy generating unit (a wind energy generating unit 45) that had experienced an anomaly. The maintenance includes an inspection of the wind energy generating unit and a repair of the wind energy generating unit. Worker terminal 60 is a terminal (e.g., a portable terminal) belonging to worker C.

[0124] Fig. Figure 14 shows an example screen displayed on employee terminal 60. Fig. Figure 14(A) shows an example input mask 401 and Fig. Figure 14(B) shows an exemplary "transmitted" mask 402. For example, when worker C or the like performs a prescribed operation at worker terminal 60, the worker terminal 60 displays the input mask 401. In the present embodiment, the display control for the input mask 401 is carried out under the control of the monitoring device 100. In a further embodiment, however, the worker terminal 60 can carry out the display control for the input mask 401 under its own control.

[0125] The input screen 401 displays a "normal" image 411, an "abnormal" image 412, an input area 414, and a submit button 415. The "normal" image 411, the "abnormal" image 412, and the input area 414 are images for worker C to enter the maintenance result. In an example in Fig. 14. Worker C can select either the “normal” image 411 or the “abnormal” image 412 using an option button.

[0126] For example, worker C is sent to a wind energy generating unit 45 requiring maintenance and inspects a section of the unit that has been identified as abnormal. However, when worker C inspects the section identified as abnormal, in some cases the anomaly has not actually occurred in that section. In this case, worker C marks the "normal" image 411 and presses the transmit button 415.

[0127] When worker C inspects the section of a wind energy generating unit 45 that has been identified as abnormal and consequently determines that an anomaly has occurred, worker C marks the "Abnormal" image 412. Furthermore, worker C enters details (replacement of the bearing section, etc.) of any urgent maintenance. Worker C then presses the transmit button 415.

[0128] When the transmit button 415 is pressed, the operator terminal 60 transmits the ID of the wind energy generation unit to be serviced and the maintenance result entered in input screen 401 to the monitoring unit 100. Along with this screen, the operator terminal 60 displays the "Transmitted" screen in Fig. 14(B). When the worker terminal 60 displays this "Transmitted" mask, a transmission of the maintenance result to the monitoring device 100 can be determined.

[0129] As in an upper right section of Fig. As shown in Figure 14, the monitoring device 100 allows the worker terminal 60 to display input screen 401 until the maintenance result is entered into input screen 401. In other words, the worker terminal 60 only displays the "Transmitted" screen 402 once the maintenance result has been entered into input screen 401.

[0130] In some cases, worker C inspects the section of a wind energy generating unit 45 that has been identified as abnormal, even though no anomaly has occurred in that section. If the monitoring parameter 530 is not changed in this case, even though an anomaly is reported in another wind energy generating unit 45, the result of the maintenance (inspection) will very likely indicate that no anomaly has actually occurred.

[0131] If the maintenance result is that no anomaly occurred in a wind energy generating unit 45 (“normal” image 411 is highlighted), or if details of a maintenance procedure indicate minor maintenance, the estimator 1102 then estimates such a monitoring parameter 530, which reduces the accuracy in anomaly detection. The modification unit 526 then changes the monitoring parameter 530 to an estimated monitoring parameter 530 (monitoring parameter 530, which reduces the accuracy in anomaly detection).The processing to change monitoring parameter 530 to an estimated monitoring parameter 530 (processing to estimate monitoring parameter 530 to reduce anomaly detection accuracy) includes, for example, processing to increase the second threshold, processing to extend the second time period, processing to cause the fourth threshold to belong to an anomaly range, and processing to broaden the second frequency band. Under such control, the computational effort required for anomaly detection can be reduced.

[0132] In general, even if the result of maintenance (inspection) of the section of a wind energy generating unit 45 in which an anomaly was detected indicates the occurrence of an anomaly, and the anomaly is corrected by maintenance (repair), it is very likely that the anomaly will occur in the same section of another wind energy generating unit 45. If the result of maintenance is the occurrence of anomalies in a wind energy generating unit 45 (the "abnormal" image 412 is highlighted), or if details of maintenance indicate extensive maintenance, the estimator 1102 estimates such a monitoring parameter 530, which improves the accuracy in anomaly detection. The modification unit 526 then modifies the monitoring parameter 530 to an estimated monitoring parameter 530 (monitoring parameter 530, which increases the accuracy in anomaly detection).The processing to change monitoring parameter 530 to an estimated monitoring parameter 530 includes, for example, processing to reduce the second threshold, processing to shorten the second period, processing to ensure that the fourth threshold falls within the normal range, and processing to narrow the second frequency band. Under such control, an anomaly in another wind energy generating unit 45 can be detected early. [Continuing education]

[0133] (1) In the embodiment described above, the configuration is described in which the energy generating device is the wind energy generating device. However, the energy generating device can also be another type of energy generating device. The other energy generating device is, for example, a hydroelectric energy generating device, a photovoltaic energy generating device, and the like.

[0134] (2) In the embodiment described above, the generation command includes information (e.g., the sensor ID) that identifies the abnormal section undergoing initial maintenance, as determination information that specifies whether the first report or the second report should be generated. However, the determination information can also be a different type of information. For example, the determination information may be information (report format) that directly indicates whether the first report or the second report should be generated. Information relating to work steps, such as details of initial maintenance (replacement of a bearing, replacement of lubricating oil, replacement of a measuring sensor, or the like), may be relevant.

[0135] (3) In the embodiment described above, the configuration is described in which the sensor used to detect whether an anomaly of the wind energy generating device 20 exists is the vibration sensor. However, the sensor can also be another type of sensor. The other sensor could be, for example, a temperature sensor, a noise sensor, or the like.

[0136] (4) A configuration is described in which the instantaneous value described above (the second physical quantity before maintenance, the second physical quantity after maintenance) is a voltage value supplied to the vibration sensor Sn. However, the instantaneous value can also be another value, as long as it is a value indicating an operational status (whether an anomaly or the like exists) of the wind energy generating unit 45. For example, the instantaneous value could be a temperature of the wind energy generating unit 20. [Additional aspects]

[0137] (Additional Aspect 1) An information processing device is provided for a power generation device. The power generation device includes a sensor that detects a physical quantity about the operation of the power generation device. The physical quantity is used to determine whether an anomaly exists in the power generation device. The information processing device includes a memory in which the physical quantity is stored and a data processing device.The physical quantity comprises a physical quantity before maintenance and a physical quantity after maintenance. The physical quantity before maintenance is detected by the sensor prior to the initial maintenance to correct an anomaly in the power generation equipment and is used to record the anomaly. The physical quantity after maintenance is detected by the sensor that detected the physical quantity before maintenance after the initial maintenance. The data processing device generates information about the physical quantities based on the physical quantity before maintenance and the physical quantity after maintenance and outputs this information.

[0138] According to such a configuration, a manager or the like of the power generation facility can determine the result of a comparison between the physical quantity before maintenance and the physical quantity after maintenance.

[0139] (Additional Aspect 2) In the information processing facility described under Additional Aspect 1, the physical quantity before maintenance comprises a first physical quantity before maintenance and a second physical quantity before maintenance, wherein the first physical quantity before maintenance is maintained over a first prescribed period before the first maintenance, the second physical quantity before maintenance is maintained before the first maintenance, and the second physical quantity before maintenance is an instantaneous value.The physical quantity after maintenance comprises a first physical quantity after maintenance and a second physical quantity after maintenance, wherein the first physical quantity after maintenance is obtained over a second prescribed period after the first maintenance, the second physical quantity after maintenance is obtained after the first maintenance, and the second physical quantity after maintenance is an instantaneous value.The data processing device generates first information on physical quantities as the information on physical quantities based on the first physical quantity before maintenance and the first physical quantity after maintenance and outputs the first information on physical quantities, and generates second information on physical quantities as the information on physical quantities based on the second physical quantity before maintenance and the second physical quantity after maintenance and outputs the second information on physical quantities.

[0140] According to such a configuration, the information processing device can generate information on physical quantities according to a type of physical quantity before maintenance and the physical quantity after maintenance.

[0141] (Additional Aspect 3) In the information processing facility described under Additional Aspect 2, the first information on physical quantities includes information indicating a transition of the first physical quantity before maintenance over the first prescribed period, and information indicating a transition of the first physical quantity after maintenance over the second prescribed period.

[0142] According to such a configuration, a manager or the like of the power generation facility can detect a transition of the first physical quantity before maintenance and a transition of the first physical quantity after maintenance.

[0143] (Additional Aspect 4) In the information processing facility described under additional aspect 2 or 3, the second physical quantity information includes information indicating the instantaneous value of the second physical quantity before maintenance and information indicating the instantaneous value of the second physical quantity after maintenance.

[0144] According to such a configuration, a manager or the like of the energy generation facility can determine the instantaneous value of the second physical quantity before maintenance and the instantaneous value of the second physical quantity after maintenance.

[0145] (Additional Aspect 5) The information processing device described in one of the additional aspects 2 to 4 generates the information on physical quantities upon receiving a command specifying the generation of information on physical quantities, generates the first information on physical quantities if the command includes information specifying the generation of the first information on physical quantities, and generates the second information on physical quantities if the command includes information specifying the generation of the second information on physical quantities.

[0146] According to such a configuration, the information processing device can automatically determine whether to generate the first set of information on physical quantities or the second set of information on physical quantities.

[0147] (Additional Aspect 6) In the information processing device described in one of the additional aspects 2 to 5, the sensor comprises a first sensor that detects the physical quantity at a prescribed section of the power generating device. The first physical quantity before maintenance and the first physical quantity after maintenance are each the physical quantity detected by the first sensor.

[0148] According to such a configuration, a manager or the like of the power generation facility can determine the first physical quantity before maintenance and the first physical quantity after maintenance of the prescribed section of the power generation facility.

[0149] (Additional Aspect 7) In the information processing device described in Additional Aspect 6, the sensor includes a second sensor that detects a supply value, which is a supply current or supply voltage supplied to the first sensor. The second physical quantity before maintenance and the second physical quantity after maintenance are each the supply value.

[0150] According to such a configuration, a manager or the like of the power generation facility can determine a value of the supply of the first sensor before an initial maintenance and a value of the supply of the first sensor after an initial maintenance.

[0151] (Additional Aspect 8) In the information processing device described in one of Additional Aspects 1 to 7, the data processing device specifies a result of the first maintenance based on the physical quantity before maintenance and the physical quantity after maintenance. The information on physical quantities includes information about the result of the first maintenance.

[0152] According to such a configuration, a manager or similar person of the energy generation facility can determine the result of an initial maintenance check.

[0153] (Additional Aspect 9) In the information processing device described in one of Additional Aspects 1 to 8, the data processing device specifies a type of further second maintenance following the first maintenance, based on the physical quantity before and after maintenance. The physical quantity includes information about the type of second maintenance.

[0154] According to such a configuration, a manager or the like of the power generation facility can determine the type of further second maintenance that follows the first maintenance.

[0155] (Additional Aspect 10) In the information processing device described in Additional Aspect 9, the data processing device provides an estimated amount of the second maintenance type. The physical quantity information includes information about the estimated amount of the second maintenance of the specified type.

[0156] According to such a configuration, a manager or similar person of the power generation facility can determine the estimated amount of the second maintenance to be carried out.

[0157] (Additional Aspect 11) In the information processing facility described in Additional Aspect 9 or 10, the data processing device outputs maintenance information indicating that the second maintenance is to be performed to a worker's terminal who is performing the second maintenance of the specified type.

[0158] According to such a configuration, a request for a second maintenance procedure can be automatically issued to the worker who performs the second maintenance.

[0159] (Additional Aspect 12) In the information processing facility described in Additional Aspect 11, the maintenance information includes information indicating whether there is an improvement in the physical quantity after maintenance compared to the physical quantity before maintenance, and / or information indicating whether the physical quantity after maintenance is within a normal range.

[0160] According to such a configuration, the worker performing the second maintenance can determine whether there is an improvement in the physical quantity after maintenance compared to the physical quantity before maintenance and / or whether the physical quantity after maintenance is within the normal range.

[0161] (Additional Aspect 13) In the information processing facility described in one of the additional aspects 1 to 12, the data processing device transmits the information on physical quantities to a terminal of an owner of the power generating facility.

[0162] According to such a configuration, the owner of the energy generation facility can take note of the information on physical quantities. (Additional aspect 14)

[0163] In the information processing device described in one of the additional aspects 1 to 13, a machine-trained model is stored in memory. The information processing device further includes an interface that receives from a prescribed terminal a result of maintenance on the power generation device or anomaly information about the power generation device. The information processing device performs a change control to modify a monitoring parameter used to monitor the power generation device by applying the anomaly information or maintenance result to the trained model.

[0164] According to such a configuration, a manager or the like does not need to change the monitoring parameter; instead, the machine-trained model is used to change the monitoring parameter so that change control can be carried out appropriately.

[0165] (Additional Aspect 15) An information processing procedure comprises obtaining a first physical quantity before maintenance and a first physical quantity after maintenance, wherein the first physical quantity before maintenance is detected before the first maintenance of a power generating unit comprising a power generating unit and the first physical quantity after maintenance is detected after the first maintenance of the power generating unit, generating information on physical quantities based on the first physical quantity before maintenance and the first physical quantity after maintenance, and outputting the information on physical quantities.

[0166] It is understood that the embodiments disclosed herein are in every respect exemplary and not limiting. The scope of the invention is defined by the terms of the claims and not by the preceding description of the embodiments, and is intended to encompass all further developments within the scope and meaning that correspond to the terms of the claims. REFERENCE MARK LIST

[0167] 10 Management system; 20 Wind energy generating device; 30 Collection device; 40 Control device; 45 Wind energy generating unit; 50 User terminal; 60 Worker terminal; 70 Maintenance terminal; 100 Monitoring device; 102 Data processing device; 104 Storage; 106 Communication interface; 112 Receiver; 114 Processing unit; 116 Transmitter; 118 Storage; 121 First physical quantity before maintenance; 122 Second physical quantity before maintenance; 131 First physical quantity after maintenance; 132 Second physical quantity after maintenance; 141 First DB; 142 Second DB; 201 First transition information; 202 Second transition information; 203, 204, 213, 214 Result information; 205, 215 Maintenance type information; 206, 216 Precautionary information; 207, 217 Estimated amount information; 211 First instantaneous value information; 212 Second instantaneous value information. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2013-185507 [0002, 0003]

Claims

Information processing device relating to a power generating device, wherein the power generating device comprises a sensor that detects a physical quantity about an operation of the power generating device, wherein the physical quantity is used to specify whether an anomaly of the power generating device exists, wherein the information processing device comprises: a memory in which the physical quantity is stored;and a data processing device, wherein the physical quantity comprises a physical quantity before maintenance and a physical quantity after maintenance, wherein the physical quantity before maintenance is detected by the sensor prior to initial maintenance for the purpose of correcting an anomaly in the power generation device and is used to detect the anomaly, and the physical quantity after maintenance is detected after initial maintenance by the sensor that detected the physical quantity before maintenance, and the data processing device is configured to generate information on physical quantities based on the physical quantity before maintenance and the physical quantity after maintenance and to output the information on physical quantities. Information processing device according to claim 1, wherein the physical quantity before maintenance comprises a first physical quantity before maintenance and a second physical quantity before maintenance, wherein the first physical quantity before maintenance is maintained for a first prescribed period before the first maintenance, the second physical quantity before maintenance is maintained before the first maintenance, and the second physical quantity before maintenance is an instantaneous value, and the physical quantity after maintenance comprises a first physical quantity after maintenance and a second physical quantity after maintenance, wherein the first physical quantity after maintenance is maintained for a second prescribed period after the first maintenance, the second physical quantity after maintenance is maintained after the first maintenance, and the second physical quantity after maintenance is an instantaneous value.and the data processing device is configured to generate and output first physical quantity information based on the first physical quantity before and after maintenance, and second physical quantity information based on the second physical quantity before and after maintenance. Information processing device according to claim 2, wherein the first information on physical quantities comprises: information indicating a transition of the first physical quantity before maintenance over the first prescribed period, and information indicating a transition of the first physical quantity after maintenance over the second prescribed period. Information processing device according to claim 2 or 3, wherein the second information comprises: information indicating the instantaneous value of the second physical quantity before maintenance, and information indicating the instantaneous value of the second physical quantity after maintenance. Information processing device according to claim 2 or 3, wherein the information processing device is configured to generate the information on physical quantities upon receiving a command specifying the generation of information on physical quantities, generate the first information on physical quantities when the command includes information specifying the generation of the first information on physical quantities, and generate the second information on physical quantities when the command includes information specifying the generation of the second information on physical quantities. Information processing device according to claim 2 or 3, wherein the sensor comprises a first sensor that detects the physical quantity at a prescribed section of the power generating device, and the first physical quantity before maintenance and the first physical quantity after maintenance are respectively the physical quantity detected by the first sensor. Information processing device according to claim 6, wherein the sensor comprises a second sensor which detects a supply value which is a supply current or supply voltage supplied to the first sensor, and the second physical quantity before maintenance and the second physical quantity after maintenance are each the supply value. Information processing device according to one of claims 1 to 3, wherein the data processing device is configured to specify a result of the first maintenance based on the physical quantity before maintenance and the physical quantity after maintenance, and the information on physical quantities includes information about the result of the first maintenance. Information processing device according to one of claims 1 to 3, wherein the data processing device is configured to specify a type of further, second maintenance following the first maintenance based on the physical quantity before maintenance and the physical quantity after maintenance, and the physical quantity comprises information about the type of second maintenance. Information processing device according to claim 9, wherein the data processing device is configured to specify an estimated amount for the type of second maintenance, and the information on physical quantities includes information about the estimated amount of the second maintenance of the specified type. Information processing device according to claim 9, wherein the data processing device is configured to output maintenance information indicating that the second maintenance is to be performed to a terminal of a worker performing the second maintenance of the specified type. Information processing device according to claim 11, wherein the maintenance information includes information indicating whether there is an improvement in the physical size after maintenance compared to the physical size before maintenance, and / or information indicating whether the physical size after maintenance is within a normal range. Information processing device according to one of claims 1 to 3, wherein the data processing device is configured to transmit the information on physical quantities to a terminal of an owner of the power generation device. Information processing device according to one of claims 1 to 3, wherein a machine-trained model is stored in memory, the information processing device further comprises an interface which receives from a prescribed terminal a result of maintenance of the power generation device or anomaly information of the power generation device, and the data processing device is configured to perform change control in order to change a monitoring parameter to be used for monitoring the power generation device by applying the anomaly information or the maintenance result to the trained model. Information processing method, comprising: obtaining a first physical quantity before maintenance and a first physical quantity after maintenance, wherein the first physical quantity before maintenance is detected before the first maintenance of a power generating apparatus comprising a power generating apparatus, and the first physical quantity after maintenance is detected after the first maintenance of the power generating apparatus; generating information on physical quantities based on the first physical quantity before maintenance and the first physical quantity after maintenance; and outputting the information on physical quantities.

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