JP7286439B2 - Supervisory control system, information processing device, information processing method, and computer program - Google Patents

Description

TECHNICAL FIELD Embodiments of the present invention relate to a monitoring control system, an information processing apparatus, an information processing method, and a computer program.

When a fault occurs in the supervisory control system, the cause of the fault is investigated. In investigating the cause of a failure, a professional engineer collects and analyzes logs related to the supervisory control system. Investigation of the cause of failure requires knowledge of the supervisory control system and knowledge of the programming language used for the software of the supervisory control system. For this reason, it sometimes takes a long time and a lot of labor to investigate the cause of the failure.

JP 2018-151955 A JP 2008-129634 A JP 2018-010430 A

The problem to be solved by the present invention is to provide a monitoring control system, an information processing device, an information processing method, and a computer program that can more easily identify the cause of failure.

A supervisory control system according to an embodiment has a recorded information acquisition section, a failure detection section, and an output control section. The record information acquisition unit acquires record information in which information relating to the operation of a device that performs monitoring control on a predetermined device is recorded from the device. The failure detection unit detects whether or not a failure has occurred in the device based on failure information regarding a failure that may occur in the device and the recorded information, and if the failure is detected, A failure cause of the failure is estimated based on the recorded information. The output control unit outputs the information about the cause of failure by a predetermined method.

1 is a system configuration diagram showing the system configuration of a monitoring control system 1 according to an embodiment; FIG. 2 is a functional block diagram showing the functional configuration of the information processing apparatus 100 of the embodiment; FIG. FIG. 4 is a diagram showing a specific example of RAS information stored in the RAS information storage unit 104 of the embodiment; FIG. 2 is a functional block diagram showing the functional configuration of the monitoring control device 200 of the embodiment; 3 is a functional block diagram showing the functional configuration of the terminal device 300 of the embodiment; FIG. 3 is a functional block diagram showing the functional configuration of the control device 400 of the embodiment; FIG. 4 is a sequence diagram showing a specific example of the flow of failure detection processing according to the embodiment; FIG.

Hereinafter, a monitoring control system, an information processing apparatus, an information processing method, and a computer program according to embodiments will be described with reference to the drawings.

FIG. 1 is a system configuration diagram showing the system configuration of a monitoring control system 1 according to an embodiment. The supervisory control system 1 includes an information processing device 100 , a supervisory control device 200 , a terminal device 300 and a control device 400 . Software installed in each device of the supervisory control system 1 is implemented in a general-purpose programming language such as Java (registered trademark) or C language. When the supervisory control system 1 detects the occurrence of a fault in the supervisory control system 1 or detects the possibility of a fault occurring (hereinafter referred to as "failure detection processing"), RAS (Reliability Availability Serviceability) information is stored. will be The supervisory control system 1 detects a failure log by analyzing RAS information collected periodically in the failure detection process. The supervisory control system 1 identifies the function or process that causes the failure based on the detected log. Functions or processes are implemented in the same programming language as the software installed on each device. The RAS information is information output by a device, an OS (Operating System), software, or other device or software that constitutes the monitoring and control system 1 . The RAS information is, for example, logs output by devices and software that configure the monitoring and control system 1 . Hereinafter, the occurrence of a failure or the possibility of occurrence of a failure will be simply referred to as the occurrence of a failure when not distinguished from each other.

The information processing device 100 , the monitoring control device 200 , the terminal device 300 and the control device 400 can all communicate via the network 500 . The network 500 is, for example, a closed area communication network such as a LAN (Local Area Network). The network 500 may be a network using wireless communication or a network using wired communication. Network 500 may be configured by combining a plurality of networks. Network 500 may be a wide area network such as the Internet. Note that the network 500 is merely a specific example of a network for realizing communication of each device, and other configurations may be employed as a network for realizing communication between each device. For example, communications between particular devices may be implemented using a different network than the network used for communications between other devices. Specifically, the communication between the information processing device 100 and the control device 400 is realized by a network different from the communication between the information processing device 100, the monitor control device 200, the terminal device 300 and the control device 400. may

FIG. 2 is a functional block diagram showing the functional configuration of the information processing apparatus 100 according to the embodiment. The information processing device 100 is configured using an information processing device such as a personal computer or a server. The information processing apparatus 100 is equipped with a function for executing failure detection processing. The failure detection processing function may be implemented in the information processing apparatus 100 by hardware, or may be implemented by installing software. Information processing apparatus 100 includes communication unit 101 , input unit 102 , output unit 103 , RAS information storage unit 104 , failure information storage unit 105 and control unit 106 .

The communication unit 101 is a communication device such as a network interface. The communication unit 101 is communicatively connected to the network 500 using a predetermined protocol. The communication unit 101 performs data communication with another device via the network 500 under the control of the control unit 106 .

The input unit 102 is configured using input devices such as a keyboard, pointing device (mouse, tablet, etc.), buttons, and touch panel. The input unit 102 is operated by the user when inputting a user's instruction to the information processing apparatus 100 . The input unit 102 may be an interface for connecting an input device to the information processing device 100 . In this case, the input unit 102 inputs to the information processing apparatus 100 an input signal generated by the input device according to the user's input.

The output unit 103 outputs data to the user of the information processing apparatus 100 via an output device (not shown) connected to the information processing apparatus 100 . The output unit 103 notifies the user of the result of the failure detection process. The output device may be configured using, for example, a device that outputs images and characters to a screen. For example, the output device can be configured using an image display device such as a liquid crystal display, an organic EL (Electro Luminescence) display, an electrophoretic display, or a CRT (Cathode Ray Tube) display. Also, the output device may be configured using a device that prints (prints) images and characters on a sheet. For example, the output device can be configured using an inkjet printer, a laser printer, or the like. Also, the output device may be configured using a device that converts characters into voice and outputs the voice. In this case, the output device can be configured using a speech synthesizer and a speech output device (speaker). The output device may be configured using a light emitting device such as an LED (Light Emitting Diode). The output unit 103 may transmit the result of the failure detection process to another information processing device via a communication device provided in the information processing device 100 . Note that the output unit 103 may be an output device integrated with the information processing apparatus 100 .

The RAS information storage unit 104 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. The RAS information storage unit 104 stores RAS information received from other devices. FIG. 3 is a diagram showing a specific example of RAS information stored in the RAS information storage unit 104 of the embodiment. The RAS information has values for date and time, sender, failure details, function details, and process details. The date and time represents the date and time when the RAS information was generated. The date and time are determined by the device that generated the RAS information. The source represents the device that generated the RAS information. In the embodiment, if the sender is the supervisory control device 200, the sender is represented by server200. The failure content indicates the details of the failure that occurred in the device that generated the RAS information. The content of the fault is represented by software such as an OS or an application provided in the device. The contents of the failure may be specific words such as "Error" representing an error or "Warning" representing a warning. The failure content may be user-specified text such as "failed to write to XX device". Failure content may be null if there is no RAS information about the failure. The function content represents the function related to the device that generated the RAS information. The function content is a function implemented in software such as an OS or an application provided in the device. The function content may be, for example, a function such as "Send alert" for sending an alert or "Air" for controlling an air conditioner. The function content may be any function specified by the user, such as "DMND". The processing content represents the processing performed by the function. For example, a case where the function content is Send alert and the processing content is device300 will be described. In this case, it means that an alert will be sent to the device 300 . RAS information is a specific example of recording information. Recorded information is information in which information relating to the operation of a device that performs supervisory control for a predetermined device is recorded.

In the example shown in FIG. 3, the RAS information at the top has a date and time value of "Jun 18 07:02", a source value of "server200", a failure content value of "Error", and a function content of "Send alert", and the processing content is "device300". Therefore, according to the RAS information at the top, it can be seen that the RAS information was generated on the date and time "Jun 18 07:02". Also, it can be seen that the source of the RAS information is "server 200" (monitoring control device 200). Also, since the failure content is "Error", the RAS information indicates an error. The function content is "Send alert", and the processing content is "device300" (terminal device 300). Therefore, the monitoring control device 200 indicates that the RAS information has sent an alert to the terminal device 300 . Note that the RAS information shown in FIG. 3 is only one specific example. Therefore, RAS information may be configured in a manner different from that in FIG. For example, RAS information may have a year value.

Returning to FIG. 2, the description of the information processing apparatus 100 is continued. The failure information storage unit 105 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. The failure information storage unit 105 stores failure information. The fault information is information about faults that may occur in the functions of the devices that make up the supervisory control system 1 . The fault information has fault content, function content, and processing content. The failure information has a value equivalent to the value held in the RAS information. The failure information storage unit 105 may store failure information in advance. The failure information storage unit 105 may store failure information transmitted from the outside. The failure information storage unit 105 stores multiple pieces of failure information according to the type of failure. The failure information storage unit 105 may store RAS information including a log generated according to rules specific to the monitoring and control system 1 as failure information. In this case, the information processing apparatus 100 can also analyze the occurrence of a failure with respect to rules unique to the monitoring and control system 1 .

The control unit 106 controls operations of each unit of the information processing apparatus 100 . The control unit 106 is configured using a processor such as a CPU (Central Processing Unit) and a RAM (Random Access Memory). The control unit 106 functions as a RAS information acquisition unit 161, a failure detection unit 162, and an output control unit 163 by the processor executing a specific program.

The RAS information acquisition unit 161 acquires RAS information from the devices that configure the supervisory control system 1 . Specifically, the RAS information acquisition unit 161 transmits a RAS information request to another device by executing the RAS collection client function. Other devices are devices that make up the monitoring control system 1, such as the monitoring control device 200, the terminal device 300, or the control device 400, for example. RAS information acquisition section 161 receives a RAS information response transmitted from another device based on the RAS information request. The RAS information response contains RAS information. The RAS information acquisition unit 161 collects RAS information such as the devices, OS, or software that constitute the supervisory control system 1 . The RAS information acquisition unit 161 transmits a RAS information request at a frequency of about once a day. Note that the RAS information acquisition unit 161 may transmit the RAS information request at a frequency other than once a day, as long as the frequency is predetermined.

The failure detection unit 162 detects whether or not a failure has occurred in a device that constitutes the monitoring control system 1 . If a failure occurs in the device, the failure detection unit 162 presumes the cause that affected the function or process in which the failure occurred. The failure detection unit 162 outputs information that may be the cause. A specific description will be given below. First, the failure detection unit 162 analyzes RAS information. The failure detection unit 162 acquires failure information from the failure information storage unit 105 for analysis. The failure detection unit 162 detects whether or not a failure has occurred in the device based on the RAS information to be analyzed and the acquired failure information. For example, the failure detection unit 162 determines whether or not the failure details included in the failure information are included in the failure details included in the RAS information. If the fault information contained in the fault information includes the fault content contained in the RAS information, the fault detection unit 162 determines that a fault has occurred in the device. If the failure content of the failure information does not include the failure content of the RAS information, the failure detection unit 162 determines that no failure has occurred in the device. The failure detection unit 162 makes a judgment on all RAS information transmitted by the RAS information response. If it is determined that no failure has occurred in the device for any RAS information, the failure detection unit 162 discards the transmitted RAS information and terminates the process.

If it is determined that a failure has occurred in the device for any one or more pieces of RAS information, failure detection section 162 records the transmitted RAS information in RAS information storage section 104 . Next, the failure detection unit 162 identifies the function or process in which the failure occurred. For example, the failure detection unit 162 identifies the function or process in which the failure has occurred based on the RAS information having a value in the failure details. In this case, the fault detection unit 162 acquires the function content and processing content of the RAS information having a value in the fault content. The fault detection unit 162 identifies that the acquired function content and processing content are the cause of the fault occurrence. The failure detection unit 162 acquires RAS information to be analyzed based on the acquired function content and processing content. Specifically, RAS information having the specified function content and processing content is acquired from the RAS information storage unit 104 . Further, the failure detection unit 162 may also acquire the function content and processing content of the RAS information generated before and after the RAS information having a value in the failure content.

Note that if the acquired processing content includes the name of another device, or if the function content is a function related to inter-device cooperation or transmission, the failure detection unit 162 analyzes the RAS information about the target device. to get as In this case, the failure detection unit 162 acquires RAS information generated at that time.

The fault detection unit 162 estimates the cause of the fault based on the RAS information to be analyzed. For example, the failure detection unit 162 estimates that the transmission source value of the RAS information is the failed device. The failure detection unit 162 estimates that the value of the function content included in the RAS information is the function in which the failure has occurred. The failure detection unit 162 estimates that the value of the process content of the RAS information is the process in which the failure occurred. For example, the RAS information to be analyzed will be described based on the RAS information at the top of FIG. In this case, the failure detection unit 162 presumes that a failure has occurred in the monitoring control device 200 . Further, the failure detection unit 162 presumes that a failure has occurred in the Send alert function for the terminal device 300 . This failure is a failure related to processing between the monitor control device 200 and the terminal device 300 . Therefore, a failure may occur in the terminal device 300 instead of the monitor control device 200 . Therefore, the fault detection unit 162 similarly analyzes the cause of the fault based on the RAS information generated by the terminal device 300. FIG. Therefore, when a failure is caused by another device, the failure detection unit 162 estimates the cause of the failure based on the RAS information generated by the other device and the RAS information to be analyzed.

The output control unit 163 outputs information about the cause of failure estimated by the failure detection unit 162 by a predetermined method. The information about the cause of failure is, for example, information estimated based on RAS information such as the name of the device in which the failure occurred, details of the function in which the failure occurred, and details of the process in which the failure occurred. The predetermined method may be e-mail, screen output, printing on paper, voice output, or lamp lighting. may The predetermined method may be any method as long as it is a predetermined method. For example, a case where the predetermined method is e-mail will be described. In this case, the output control unit 163 transmits an e-mail describing information about the failure to a predetermined destination communication device. The predetermined destination may be, for example, a user or a person in charge of maintenance of the monitoring and control system 1 .

FIG. 4 is a functional block diagram showing the functional configuration of the monitoring control device 200 of the embodiment. The monitoring control device 200 is configured using an information processing device such as a personal computer or a server. The monitoring control device 200 is equipped with a function for monitoring and controlling a device to be monitored and controlled. The monitoring control device 200 is equipped with a function for transmitting RAS information generated by itself to the information processing device 100 . Each function of the monitoring control device 200 may be implemented in the monitoring control device 200 by hardware, or may be implemented by installing software. The monitoring control device 200 includes a communication section 201 , an input section 202 , an output section 203 , a RAS information storage section 204 and a control section 205 .

A communication unit 201 is a communication device such as a network interface. The communication unit 201 is communicatively connected to the network 500 using a predetermined protocol. The communication unit 201 performs data communication with another device via the network 500 under the control of the control unit 205 .

The input unit 202 is configured using input devices such as a keyboard, pointing device (mouse, tablet, etc.), buttons, touch panel, and the like. The input unit 202 is operated by the user when inputting the user's instructions to the monitoring control device 200 . The input unit 202 may be an interface for connecting an input device to the monitor control device 200 . In this case, the input unit 202 inputs to the monitoring control apparatus 200 an input signal generated by the input device according to the user's input.

The output unit 203 outputs data to the user of the monitoring control device 200 via an output device (not shown) connected to the monitoring control device 200 . The output unit 203 outputs the result of monitor control. The output device may be configured using, for example, a device that outputs images and characters to a screen. For example, the output device can be configured using an image display device such as a liquid crystal display, an organic EL display, an electrophoretic display, or a CRT display. Also, the output device may be configured using a device that prints (prints) images and characters on a sheet. For example, the output device can be configured using an inkjet printer, a laser printer, or the like. Also, the output device may be configured using a device that converts characters into voice and outputs the voice. In this case, the output device can be configured using a speech synthesizer and a speech output device (speaker). The output device may be configured using a light emitting device such as an LED. The output unit 203 may transmit the result of monitoring control to another information processing device via a communication device provided in the monitoring control device 200 . Note that the output unit 203 may be an output device integrated with the monitoring control device 200 .

The RAS information storage unit 204 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. The RAS information storage unit 204 stores RAS information generated by the supervisory control device 200 .

A control unit 205 controls the operation of each unit of the monitoring control device 200 . The control unit 205 is configured using a processor such as a CPU and a RAM. The control unit 205 functions as a monitoring control unit 251 and a RAS information response unit 252 by the processor executing a specific program.

The monitoring control unit 251 monitors and controls equipment to be monitored and controlled. The supervisory control unit 251 generates RAS information based on the results of supervisory control. For example, a case where the monitoring control unit 251 turns on an air conditioner as a facility to be monitored and controlled will be described. When the air conditioner is turned on, the monitoring control unit 251 generates RAS information based on the result of turning on the air conditioner. For example, the supervisory control unit 251 determines the supervisory control device 200 as the transmission source of the RAS information. The monitor control unit 251 determines the content of the failure to be a null value. The monitoring control unit 251 determines Air representing an air conditioner as the function content. The monitoring control unit 251 determines ON as the processing content. The monitor controller 251 generates RAS information based on the determined information. The monitoring control unit 251 determines the date and time when the RAS information was generated as the date and time of the RAS information. The monitor control unit 251 records the generated RAS information in the RAS information storage unit 204 . Note that when the air conditioner is turned on and a predetermined warning is notified from the air conditioner, the monitor control unit 251 also generates RAS information having Warning as failure content.

RAS information responding section 252 transmits RAS information to information processing apparatus 100 . A specific description will be given below. First, when the RAS information response unit 252 receives a RAS information request from the information processing device 100 , it acquires the RAS information stored in the RAS information storage unit 204 . The RAS information response unit 252 transmits the acquired RAS information to the information processing apparatus 100 as a RAS information response.

FIG. 5 is a functional block diagram showing the functional configuration of the terminal device 300 of the embodiment. The terminal device 300 is configured using an information processing device such as a personal computer or a server. The terminal device 300 is equipped with functions for transmitting instructions to the supervisory control device 200 and outputting results of supervisory control. The terminal device 300 is equipped with a function for transmitting RAS information generated by itself to the information processing device 100 . Each function of the terminal device 300 may be implemented in the terminal device 300 by hardware, or may be implemented by installing software. Terminal device 300 includes communication section 301 , input section 302 , output section 303 , RAS information storage section 304 and control section 305 .

A communication unit 301 is a communication device such as a network interface. A communication unit 301 is communicably connected to the network 500 using a predetermined protocol. The communication unit 301 performs data communication with another device via the network 500 under the control of the control unit 305 .

The input unit 302 is configured using input devices such as a keyboard, pointing device (mouse, tablet, etc.), buttons, touch panel, and the like. The input unit 302 is operated by the user when inputting the user's instruction to the terminal device 300 . The input unit 302 may be an interface for connecting an input device to the terminal device 300 . In this case, the input unit 302 inputs to the terminal device 300 an input signal generated by the input device according to the user's input.

The output unit 303 outputs data to the user of the terminal device 300 via an output device (not shown) connected to the terminal device 300 . The output unit 303 outputs the result of the monitoring control received from the monitoring control device 200 . The output device may be configured using, for example, a device that outputs images and characters to a screen. For example, the output device can be configured using an image display device such as a liquid crystal display, an organic EL display, an electrophoretic display, or a CRT display. Also, the output device may be configured using a device that prints (prints) images and characters on a sheet. For example, the output device can be configured using an inkjet printer, a laser printer, or the like. Also, the output device may be configured using a device that converts characters into voice and outputs the voice. In this case, the output device can be configured using a speech synthesizer and a speech output device (speaker). The output device may be configured using a light emitting device such as an LED. The output unit 303 may transmit the result of monitoring control to another information processing device via a communication device provided in the terminal device 300 . Note that the output unit 303 may be an output device configured integrally with the terminal device 300 .

The RAS information storage unit 304 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. The RAS information storage unit 304 stores RAS information generated by the terminal device 300 .

The control unit 305 controls operations of each unit of the terminal device 300 . The control unit 305 is configured using a processor such as a CPU and a RAM. The control unit 305 functions as a communication control unit 351 and a RAS information response unit 352 by the processor executing a specific program.

The communication control unit 351 transmits instructions to other devices such as the monitoring control device 200 and the like. Communication control unit 351 outputs the results of instructions from other devices. The communication control unit 351 generates RAS information based on the instruction transmission results and the instruction results from other devices. Communication control section 351 records the generated RAS information in RAS information storage section 304 .

RAS information responding section 352 transmits RAS information to information processing apparatus 100 . A specific description will be given below. First, when the RAS information response unit 352 receives a RAS information request from the information processing device 100 , it acquires the RAS information stored in the RAS information storage unit 304 . The RAS information response unit 352 transmits the acquired RAS information to the information processing apparatus 100 as a RAS information response.

FIG. 6 is a functional block diagram showing the functional configuration of the control device 400 of the embodiment. The control device 400 is configured using a control device such as a PLC (Programmable Logic Controller). The control device 400 has a function of transmitting instructions to a device (not shown) to be monitored and controlled and acquiring measurement data of the device to be monitored and controlled. The control device 400 has a function of transmitting RAS information generated by itself to the information processing device 100 . Each function of the control device 400 may be implemented in the control device 400 by hardware, or may be implemented by installing software. The control device 400 includes a communication section 401 , a RAS information storage section 402 and a control section 403 .

A communication unit 401 is a communication device such as a network interface. A communication unit 401 is communicably connected to the network 500 using a predetermined protocol. The communication unit 401 performs data communication with another device via the network 500 under the control of the control unit 403 .

The RAS information storage unit 402 is configured using a storage device such as a magnetic hard disk device or a semiconductor storage device. RAS information storage unit 402 stores RAS information generated by control device 400 .

The control unit 403 controls the operation of each unit of the control device 400 . The control unit 403 is configured using a processor such as a CPU and a RAM. The control unit 403 functions as a device control unit 431 and a RAS information response unit 432 by the processor executing a specific program.

The device control unit 431 transmits an instruction to a device (not shown) to be monitored and controlled. The device control unit 431 acquires measurement data of devices to be monitored and controlled. The device control unit 431 generates RAS information based on the instruction transmission result and the acquired measurement data. Device control section 431 records the generated RAS information in RAS information storage section 402 .

RAS information response unit 432 transmits RAS information to information processing apparatus 100 . A specific description will be given below. First, when the RAS information response unit 432 receives a RAS information request from the information processing device 100 , it acquires the RAS information stored in the RAS information storage unit 402 . The RAS information response unit 432 transmits the acquired RAS information to the information processing apparatus 100 as a RAS information response.

FIG. 7 is a sequence diagram showing a specific example of the flow of failure detection processing according to the embodiment. The failure detection process may be performed at a predetermined timing. The predetermined timing may be, for example, once a day or a predetermined timing. The RAS information acquisition unit 161 of the information processing device 100 transmits a RAS information request to the devices constituting the monitoring control system 1 (step S101). For example, the RAS information acquisition unit 161 transmits a RAS information request to the monitor control device 200, the terminal device 300 and the control device 400. FIG.

Upon receiving the RAS information request, the RAS information response unit 252 of the monitor control device 200 acquires the RAS information stored in the RAS information storage unit 204 (step S102). The RAS information response unit 252 transmits the acquired RAS information as a RAS information response to the information processing apparatus 100 (step S103).

Upon receiving the RAS information request, the RAS information response unit 352 of the terminal device 300 acquires the RAS information stored in the RAS information storage unit 304 (step S104). The RAS information response unit 352 transmits the acquired RAS information as a RAS information response to the information processing apparatus 100 (step S105).

Upon receiving the RAS information request, the RAS information response unit 432 of the control device 400 acquires the RAS information stored in the RAS information storage unit 402 (step S106). The RAS information response unit 432 transmits the acquired RAS information as a RAS information response to the information processing apparatus 100 (step S107).

The failure detection unit 162 of the information processing device 100 analyzes the RAS information (step S108). The failure detection unit 162 acquires failure information from the failure information storage unit 105 for analysis. Based on the acquired RAS information and the acquired failure information, the failure detection unit 162 detects whether or not a failure has occurred in the device that is the transmission source of the RAS information (step S109). The failure detection unit 162 detects whether or not a failure has occurred in all of the acquired RAS information. As a result of the analysis, if no failure has occurred in any device (step S109: NO), the failure detection unit 162 discards the transmitted RAS information and terminates the process. As a result of the analysis, if any device has a failure (step S109: YES), the failure detection unit 162 records the transmitted RAS information in the RAS information storage unit 104 (step S110).

The failure detection unit 162 identifies the function or process in which the failure occurred (step S111). For example, the failure detection unit 162 identifies the function or process in which the failure has occurred based on the RAS information detected as the failure. The failure detection unit 162 acquires RAS information to be analyzed based on the acquired function content and processing content (step S112). Specifically, the failure detection unit 162 acquires RAS information having the specified function content and processing content from the RAS information storage unit 104 .

The fault detection unit 162 estimates the cause of the fault based on the RAS information to be analyzed (step S113). For example, the failure detection unit 162 may estimate that the transmission source value of the RAS information is the failed device. The failure detection unit 162 may estimate that the value of the function content included in the RAS information is the function in which the failure has occurred. The failure detection unit 162 may estimate the value of the processing content included in the RAS information to be the processing in which the failure occurred.

The output control unit 163 outputs information about the failure cause estimated by the failure detection unit 162 by a predetermined method (step S114). The predetermined method may be mail sent via a network such as the Internet, output to a screen, printing on paper, or voice output. Alternatively, it may be lighting of a lamp. The predetermined method may be any method as long as it is a predetermined method.

The fault detector 162 of the monitoring and control system 1 configured in this way detects the occurrence of a fault based on the RAS information such as the acquired log. Then, the monitoring and control system 1 estimates the function/process that causes the failure based on the RAS information such as the log related to the detected failure. As described above, the monitoring and control system 1 estimates the function/processing content that causes the failure, so that the user can narrow down and identify the cause of the failure without technical knowledge.

Each device constituting the monitoring and control system 1 has a limited capacity of a storage device such as a hard disk. Therefore, when the information processing device 100 of the supervisory control system 1 stores all RAS information, the storage device may be filled with RAS information irrelevant to failure cause estimation. In such a case, the information processing apparatus 100 cannot record RAS information indicating operation details or processing details that may cause a failure. Therefore, in some cases, the information processing apparatus 100 cannot identify the cause of the failure. Therefore, in the monitoring and control system 1, the failure detection unit 162 of the information processing device 100 detects RAS information about a log that may cause a failure, or detects RAS information about a log with a failure. record. Therefore, the supervisory control system 1 can record RAS information in real time after detecting a failure. Therefore, the supervisory control system 1 does not need to record long-term RAS information including a period during which no failure occurs. The supervisory control system 1 can record RAS information used for estimating the cause of failure in the storage capacity of the RAS information storage unit 104 .

In addition, the output control unit 163 of the supervisory control system 1 may upload information on the estimated cause of failure to the cloud computing system, or send an e-mail to the person in charge of maintenance of the supervisory control system 1 . With this configuration, the user can check the state of the supervisory control system 1 without accessing the supervisory control system 1 . Therefore, when a failure occurs, the user can consider countermeasures against the failure without collecting RAS information. Therefore, the user can shorten the lead time from occurrence of failure in the monitoring and control system 1 to recovery from the failure.

<Modification>
The failure detection unit 162 may be configured to estimate the cause of failure based on a learning model generated by machine learning in addition to the estimating means of the embodiment. In this case, the failure detection unit 162 generates a learning model in advance by performing machine learning based on predetermined teacher data. The teacher data is, for example, data in which RAS information and failure details are associated with each other. Machine learning may be, for example, an algorithm using a neural network or a decision tree algorithm. Machine learning may be any learning method as long as it is an algorithm that generates a learning model capable of estimating the cause of failure.

The information processing apparatus 100 may not be able to estimate the cause of the failure for reasons such as lack of RAS information. In such a case, the user is required to request an investigation from the person in charge of maintenance of the supervisory control system 1 or the developer of the supervisory control system 1 . Such a maintenance person can improve the accuracy of the learning model by feeding back the investigation results by the developer to the failure detection unit 162 of the information processing apparatus 100 as training data. Therefore, the fault detection unit 162 can estimate the fault cause with higher accuracy.

In the present embodiment, each information processing device 100 is described as one device, but may be configured by a plurality of devices. Each of the information processing apparatuses 100 may be configured by a cloud computing system.

Thus, when the information processing apparatus 100 is configured by a cloud computing system, more data such as RAS information can be managed and stored. Therefore, when a failure occurs, the failure detection unit 162 refers to past RAS information and obtains RAS information in which a similar failure has occurred, thereby making it possible to confirm the content of measures to be taken when a failure occurs. . Therefore, it is possible to recover from the failure in a shorter time.

Also, although the monitor control device 200, the terminal device 300, and the control device 400 have been described as one device, they may be configured by a plurality of devices. The monitoring control device 200, the terminal device 300 and the control device 400 may each be configured by a cloud computing system.

In each of the above embodiments, the RAS information acquisition unit 161, the fault detection unit 162, the output control unit 163, the monitor control unit 251, the communication control unit 351, the device control unit 431, and the RAS information response units 252, 352, and 432 are software function units. However, it may be a hardware functional unit such as an LSI.

According to at least one embodiment described above, having the RAS information acquisition unit 161, the failure detection unit 162, and the output control unit 163 makes it possible to more easily identify the cause of failure.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, as well as the scope of the invention described in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1... Monitoring control system 100... Information processing apparatus 101... Communication part 102... Input part 103... Output part 104... RAS information storage part 105... Fault information storage part 106... Control part 161... RAS information Acquisition unit 162 Fault detection unit 163 Output control unit 200 Monitoring control device 201 Communication unit 202 Input unit 203 Output unit 204 RAS information storage unit 205 Control unit 251 Monitoring control unit 252 RAS information response unit 300 terminal device 301 communication unit 302 input unit 303 output unit 304 RAS information storage unit 305 control unit 351 communication control unit 352 RAS information response unit 400 control device 401 communication unit 402 RAS information storage unit 403 control unit 431 device control unit 432 RAS information response unit 500 network

Claims (7)

a recorded information acquisition unit that acquires from the device recorded information in which information about the operation of a device that monitors and controls a predetermined device is recorded;
Detecting whether or not a failure has occurred in the device based on failure information relating to failures that may occur in the device and the recorded information, and detecting the failure cause of the failure if the failure is detected based on the recorded information;
an output control unit that outputs information about the cause of the failure by a predetermined method;
with
When the recorded information includes information about another device, the fault detection unit performs the fault detection based on the other device recorded information, which is recorded information about the operation of the other device acquired from the other device, and the recorded information. A supervisory control system that estimates the cause of the failure . further comprising a record information storage unit that stores the record information;
The failure detection unit records the record information in the record information storage unit when the failure is detected, and does not record the record information in the record information storage unit when the failure is not detected.
The supervisory control system according to claim 1 . 3. The supervisory control system according to claim 1 , wherein said output control unit transmits information about said failure cause to a predetermined communication device. The failure information includes failure details, functions of the device, and processing details of the functions. detect faults,
The supervisory control system according to any one of claims 1 to 3 . a recorded information acquisition unit that acquires from the device recorded information in which information about the operation of a device that monitors and controls a predetermined device is recorded;
Detecting whether or not a failure has occurred in the device based on failure information relating to a failure that may occur in the device and the recorded information, and detecting the failure cause of the failure if the failure is detected based on the recorded information;
an output control unit that outputs information about the cause of the failure by a predetermined method;
with
When the recorded information includes information about another device, the fault detection unit performs the fault detection based on the other device recorded information, which is the recorded information about the operation of the other device acquired from the other device, and the recorded information. An information processing device that estimates the cause of the failure . a recorded information obtaining step in which the information processing device obtains from the device recorded information in which information relating to the operation of a device that performs monitoring and control over a predetermined device is recorded;
The information processing device detects whether or not a failure has occurred in the device based on failure information relating to a failure that may occur in the device and the recorded information, and if the failure is detected, a failure detection step of estimating a failure cause of the failure based on the recorded information;
an output control step of outputting information about the cause of the failure by a predetermined method;
has
In the failure detection step, when the recorded information includes information about another device, the information processing device includes other device recorded information, which is recorded information about the operation of the other device acquired from the other device, and the and an information processing method for estimating the cause of the failure based on recorded information . A computer program for causing a computer to function as the monitoring control system according to any one of claims 1 to 4 .

Images