JP2008146506A - Trouble analytical system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trouble analyzing system for extracting information for determining easily a cause of abnormality. <P>SOLUTION: This trouble analyzing system 100 is provided, for example, with: a central control unit 2 for outputting control information 3 for controlling control-objective equipment 4 in an electric power station or the like, and for determining an operation state of the control-objective equipment 4, based on equipment operation information 5 indicating states concerned in a plurality of devices constituting the control-objective equipment 4; and a peripheral equipment controller 6 for collecting the equipment operation information 5 to be transmitted to the central control unit 2, and for outputting a determination result concerned in the operation states, based on an indication from the central control unit 2. The central control unit 2 is provided with a database 1 for accumulating the equipment operation information 5, and a CRT 7 and a printer 8 are connected to the peripheral equipment controller 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a trouble analysis system, and more particularly to an information extraction technique that extracts and outputs information related to a trouble from a series of device operation information.

Conventionally, in a system that controls devices remotely, in order to grasp the operating state of the controlled device at a remote location, each device is equipped with a sensor or switch that detects the status of the controlled device. Information about the state is output. For example, in order to recognize whether or not a rotational drive means such as a motor is operating normally, an encoder or the like is attached to the motor shaft, and the motor rotates at the correct rotational speed depending on the presence or absence of a signal generated from the encoder or the rotational frequency. It can be detected whether or not it is rotating. In addition, there is a switch that detects whether or not a device to be opened / closed has been opened / closed to a correct position, and the open / close state is determined by turning on / off the switch. Furthermore, in order to determine whether or not the pressure of the gas in the sealed container is normal, the value of the pressure gauge is detected, and the value is converted into a signal and transmitted.
As a conventional technique, in Patent Document 1, a control signal line disconnection, a control signal line short circuit, a monitor signal line short circuit, a stove operation stop, and a monitor signal line short circuit are monitored. Discloses a technique for detecting an HA terminal system failure.
JP 2006-163669 A

However, these sensors, switches, and other information are always output regardless of whether they are operating normally or abnormally in order to monitor the operating status of the controlled device. This is a situation where information indicating is mixed. That is, for information other than information from a sensor that operates only when there is an abnormality, it cannot be easily determined whether or not the information indicates normal operation. Therefore, there is no choice but to separately analyze and extract information on abnormal operation. For example, the monitoring monitor screen or the printed contents only list information indicating normal operation and information indicating abnormal operation in a chronological order. The operation of extracting information related to the operation is extremely complicated, causing a long time to deal with the occurrence of an abnormality.
Moreover, although the prior art currently disclosed by patent document 1 can detect the short circuit or disconnection of a signal line, it cannot judge whether it is a failure of the apparatus connected to the signal line.
The present invention has been made in view of such a problem. While storing device operation information in a database, an abnormal keyword is extracted from the information, and normal time information and abnormal time information are identified and output. It is an object of the present invention to provide a trouble analysis system that extracts information that can easily determine the cause of an abnormality.

To solve this problem, the present invention provides a trouble analysis system for extracting trouble information of a control target device from device operation information output from the control target device, wherein the control target device Output control information for controlling the central control device that determines the operation state of the control target device based on the device operation information, and collects and transmits the device operation information to the central control device, A peripheral device control device that outputs a determination result relating to the operation state based on an instruction of the central control device, and the central control device outputs the determination result to the peripheral device control device, the device The trouble information of the device to be controlled is extracted from the operation information and output to the peripheral device control device.
The present invention includes a central control device and a peripheral device control device. The central controller outputs control information for controlling the control target device and plays a role of determining the operation state of the control target device based on the device operation information. In addition, the peripheral device control device is responsible for collecting the device operation information output from the control target device and transmitting it to the central control device and outputting the determination result relating to the operation state based on the instruction of the central control device. Yes. Then, when the determination result is output to the peripheral device control device, the central control device specifically extracts and outputs the trouble information from the device operation information. As a result, it is possible to easily determine the trouble situation from a large amount of device operation information.

According to a second aspect of the present invention, the central control device includes a control information output unit that outputs the control information to the control target device, a device operation database that stores the device operation information aggregated by the peripheral device control device, Keyword search means for searching for a keyword related to trouble from the device operation information stored in the device operation database, trouble report preparation means for generating a trouble report based on the keyword searched by the keyword search means, And a control unit.
The central control unit controls the control target device, accumulates device operation information collected by the peripheral device control device, searches for a keyword related to the trouble from the accumulated information, and generates a trouble report based on the keyword. Has a function to create. Thus, normal operation information and abnormal operation information can be identified from the aggregated device operation information, and a trouble report can be easily created.

According to a third aspect of the present invention, the peripheral device control device includes a device operation information input unit that inputs the device operation information from the plurality of devices to be controlled in time series to the peripheral device control device; and An output unit that converts the determination result into a data format of an output terminal based on the instruction and outputs the information, and a peripheral device control unit, wherein the peripheral device control unit includes information indicating at least a current device operation status, The time when the device operation information is received, the device number that output the device operation information, and the device name are transmitted to the central control unit.
Various pieces of information are included in the device operation information. For example, information indicating the current device operation status, the time when the control target device outputs the device operation information, the device number of the control target device, the device name, and the like. At least these pieces of information are transmitted to the central controller. As a result, the control target device can be specified in detail, and the situation where the abnormality has occurred can be analyzed in more detail.

According to a fourth aspect of the present invention, the central control unit stores the device operation normal value database in which the device operation information at the normal time is stored, the device operation information input by the device operation information input means, and the device operation normal value database. Operation state comparison means for comparing the device operation information at normal time, and the central control unit troubles the device operation information when the results compared by the operation state comparison means are different. It outputs to the said peripheral device control apparatus as information, It is characterized by the above-mentioned.
As a method for determining whether or not information indicating an abnormal operation is included in the device operation information, for example, when determining by a numerical value, there is a method of comparing with a normal value. Therefore, in the present invention, normal values are stored in a database, and when compared with the input device operation information, if different values are indicated, this device operation information is output to the peripheral device control device as trouble information. To do. Accordingly, it is possible to cope with the case where it is determined whether or not the numerical value is normal.

According to a fifth aspect of the present invention, the information processing apparatus further includes an input unit configured to input information to the peripheral device control device, and the central control device searches the device operation database based on a keyword input by the input unit, thereby causing a series of troubles. It is characterized by extracting items.
There are two methods for storing a keyword indicating an abnormality in advance and extracting a trouble item by the keyword and by extracting the keyword by inputting the keyword when a new keyword is found. is there. Thereby, keywords for searching can be changed and added to increase extraction efficiency.

According to a sixth aspect of the present invention, the keyword is information indicating the current device operation status, a time when the device operation information is received, and / or the device number.
When there are a plurality of keywords, it is more likely to be extracted by searching by combining the keywords than one keyword. Therefore, in the present invention, trouble items can be identified quickly and accurately by using information indicating the current device operation status, time when the device operation information is received, or individual keywords of the device number and a combination of these keywords. Can be extracted.

A seventh aspect of the present invention is characterized in that the central control unit can select whether or not to create the trouble report by the input means.
Although the trouble report can be created in real time, it is generally created collectively at a predetermined time (for example, weekly or monthly). Therefore, in the present invention, the timing for creating the trouble report can be appropriately selected by the input means. As a result, it is possible to arbitrarily select the timing for creating the trouble report.

According to an eighth aspect of the present invention, the central control unit can select a time zone to be output by the input unit when the device operating state is output by the output unit.
Information output to the output means is not limited to trouble items. That is, it is necessary to output the device operating state indicating the normal operation to the output means. However, since this information may have a huge amount of information, it is preferable to select and output a necessary time zone. Therefore, in the present invention, the time zone to be output can be selected by the input means. Thereby, a necessary time zone can be freely selected and useless output operation can be suppressed.

According to a ninth aspect of the present invention, when the output means is a display, the central control unit performs color display or blink display on a part related to the trouble information from the determination result.
The output means includes a printer for printing on recording paper and a display for displaying as an image. When this display is used, color display is generally used. Therefore, a portion related to trouble information is displayed in color or blinking to clearly distinguish between trouble information and normal information. Thereby, the position of the trouble information becomes clear, and the cause of the trouble can be easily determined.

  According to the present invention, the control information for controlling the control target device is output, and the central control device that determines the operation state of the control target device based on the device operation information, and the device operation information is collected and centralized. A peripheral device control device that transmits to the control device and outputs a determination result relating to the operating state based on an instruction from the central control device. When the central control device outputs the determination result to the peripheral device control device, the device Since the trouble information of the control target device is extracted from the operation information and output to the peripheral device control device, the trouble situation can be easily determined from the enormous device operation information.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .
FIG. 1 is a diagram showing a configuration of a trouble analysis system according to an embodiment of the present invention. The trouble analysis system 100 outputs, for example, control information 3 for controlling the control target device 4 such as a power plant, and based on device operation information 5 output from a plurality of devices constituting the control target device 4. Thus, the central control device 2 that determines the operation state of the control target device 4 and the device operation information 5 are collected and transmitted to the central control device 2, and the determination result relating to the operation state is obtained based on the instruction of the central control device 2. And a peripheral device control device 6 for outputting. The central control device 2 includes a database (hereinafter referred to as DB) 1 for storing device operation information 5, and a CRT 7 and a printer 8 are connected to the peripheral device control device 6.

  When the determination result is output to the peripheral device control device 6, the central control device 2 extracts the trouble information of the control target device from the device operation information 5 and outputs it to the peripheral device control device 6. In other words, the present embodiment includes the central control device 2 and the peripheral device control device 6. The central controller 2 outputs control information 3 for controlling the control target device 4 and plays a role of determining the operation state of the control target device 4 based on the device operation information 5. Also, the peripheral device control device 6 aggregates device operation information 5 output from the control target device 4 and transmits it to the central control device 2, and outputs a determination result relating to the operation state based on an instruction from the central control device 2. Have a role to do. When the central control device 2 outputs the determination result to the peripheral device control device 6, the trouble information is specifically extracted from the device operation information 5 and output. Thereby, it is possible to easily determine the trouble situation from the vast amount of device operation information 5. In this embodiment, the central control device 2 and the peripheral device control device 6 are separately controlled. However, the central control device 2 alone may be used.

  FIG. 2 is a detailed block diagram of the central control device and the peripheral device control device according to the first embodiment of the present invention. The central control device 2 stores the control information output means 10 for outputting the control information 3 to the control target device 4, the device operation DB 1 for storing the device operation information 5 collected by the peripheral device control device 6, and the device operation DB 1. A keyword search unit 13 for searching for a keyword related to trouble from the device operation information, a trouble report generation unit 11 for generating a trouble report based on the keyword, and a central control unit 12. . In addition, the peripheral device control device 6 aligns the device operation information 5 from the plurality of control target devices 4 in time series with the device operation information input means 15 and inputs the instructions to the central control device 2. On the basis of this, the output terminal 16 converts the determination result into the data format of the output terminal CRT 7 and the printer 8 and outputs the data, and the peripheral device control unit 17. The peripheral device control unit 17 is connected to input means such as a keyboard 18 for inputting data. The peripheral device control unit 17 transmits at least information indicating the current device operation status, the time when the device operation information 5 was received, the device number that output the device operation information 5, and the device name to the central control device 2.

That is, the central control device 2 controls the control target device 4, accumulates device operation information 5 collected by the peripheral device control device 6, searches a keyword related to the trouble from the accumulated information, It has a function to create a trouble report based on it. Thus, normal operation information and abnormal operation information can be identified from the aggregated device operation information 5, and a trouble report can be easily created.
The device operation information 5 includes various types of information. For example, information indicating the current device operation status, the time when the control target device outputs the device operation information, the device number of the control target device, the device name, and the like. At least these pieces of information are transmitted to the central controller 2. Thereby, the control object apparatus 4 can be specified finely and the situation where abnormality generate | occur | produced can be analyzed in detail. In addition, since a plurality of pieces of information are input as the device operation information 5, the device operation information input means 15 performs time division control on the information and inputs the information to the peripheral device control unit 17.

  FIG. 3 is a flowchart for explaining the operation of the trouble analysis system according to the first embodiment of the present invention. This will be described with reference to FIG. First, the central control unit 12 outputs the control information 3 to the control target device 4 via the control information output means 10 (S0). The control target device 4 starts to operate based on the control information 3, and the peripheral device control unit 17 monitors whether or not the device operation information 5 is input to the device operation information input means 15 (S1). Is input (YES in S1), the information is controlled in a time-sharing manner and transmitted to the central control unit 12. The central control unit 12 stores the information in the device operation DB 1 (S2). The central control unit 12 searches the keyword search means 13 for the keyword of trouble information included in the information while storing the device operation information 5 in the device operation DB 1 (S3). The keyword is stored in advance in the memory and searched by comparing with the keyword. Further, it may be compared with a keyword input from the keyboard 18. Next, when a keyword for trouble information is found as a result of comparison (YES in S4), the central control unit 12 extracts an item related to the trouble searched by the keyword from the device operation DB 1 (S5), The device control unit 17 is notified, and the peripheral device control unit 17 performs printing by the printer 8 via the output unit 16 (S6). At that time, it may be displayed on the CRT 7 at the same time. When this CRT 7 is used, color display is generally used, and therefore, a portion relating to trouble information can be displayed in color or blinking to clearly distinguish between trouble information and normal information. Thereby, the position of the trouble information becomes clear, and the cause of the trouble can be easily determined.

Subsequently, when a trouble report is not created (NO in S7) and device operation information is not printed out (NO in S10), the process returns to Step S1 and is repeated. On the other hand, when creating a trouble report in step S7 (YES in S7), the central control unit 12 creates a trouble report by the trouble report creating means 11 (S8), and the result is the peripheral device control unit 17. And the peripheral device control unit 17 performs printing by the printer 8 via the output unit 16 (S9). Further, when printing out the device operation information in the normal state in step S10 (YES in S10), the result is notified to the peripheral device control unit 17, and the peripheral device control unit 17 uses the printer 8 via the output means 16. Printing is performed (S9).
Although the trouble report can be created in real time, it is generally created collectively at a predetermined time (for example, weekly or monthly). Therefore, in the present invention, the timing for creating the trouble report can be appropriately selected by the keyboard 18. As a result, it is possible to arbitrarily select the timing for creating the trouble report.

FIG. 4 is a detailed block diagram of the central control device and the peripheral device control device according to the second embodiment of the present invention. The same constituent elements are denoted by the same reference numerals as those in FIG. 4 differs from FIG. 2 in that the device operation normal value DB 19 in which the device operation information during normal operation is stored in the central controller 2, the device operation information 5 input by the device operation information input means 15, and the device operation normality. This further includes operation state comparison means 14 for comparing the device operation information at the normal time stored in the value DB 19. If the results compared by the operation state comparison means 14 are different, the central control unit 12 outputs the device operation information to the peripheral device control device 6 as trouble information.
That is, as a method of determining whether or not the device operation information 5 includes information indicating abnormal operation, for example, when determining by numerical values, there is a method of comparing with a value at normal time. Therefore, in the present embodiment, when normal values are stored in the device operation normal value DB 19 and compared with the input device operation information 5, a different value is indicated. To the peripheral device control device 6. Accordingly, it is possible to cope with a case where it is determined whether or not normal by a numerical value.

  FIG. 5 is a flowchart for explaining the operation of the trouble analysis system according to the second embodiment of the present invention. This will be described with reference to FIG. First, the central control unit 12 outputs the control information 3 to the control target device 4 via the control information output means 10 (S10). The control target device 4 starts to operate based on the control information 3, and the peripheral device control unit 17 monitors whether or not the device operation information 5 is input to the device operation information input means 15 (S11). Is input (YES in S11), the information is controlled in a time-sharing manner and transmitted to the central control unit 12. The central control unit 12 stores the information in the device operation DB 1 (S12). The central control unit 12 stores the device operation information 5 in the device operation DB 1, and compares the numerical information included in the information with the normal value data stored in the device operation normal value DB 19 by the operation state comparison unit 14. (S13). Next, as a result of the comparison, when device operation information 5 that does not match the normal value data is found (NO in S14), the central control unit 12 extracts an item relating to the trouble from the device operation DB 1 (S15), and the trouble item is extracted. The peripheral device control unit 17 notifies the peripheral device control unit 17 and the printer 8 prints via the output means 16 (S16). At that time, it may be displayed on the CRT 7 at the same time.

  Subsequently, when a trouble report is not created (NO in S17) and device operation information is not printed out (NO in S20), the process returns to step S11 and is repeated. On the other hand, when creating a trouble report in step S17 (YES in S17), the central control unit 12 creates a trouble report by the trouble report creating means 11 (S18), and the result is the peripheral device control unit 17. And the peripheral device control unit 17 performs printing by the printer 8 via the output means 16 (S19). If the device operation information in the normal state is printed out in step S20 (YES in S20), the result is notified to the peripheral device control unit 17, and the peripheral device control unit 17 uses the printer 8 via the output unit 16. Printing is performed (S19).

  FIG. 6A is a diagram showing an example of printing out a series of device operation information. In this example, the time 20 when the device operation information is output, the device number 21 at that time, the current device operation status 22, and the device name 23 are printed out. For example, at time “8:00”, it is printed out that the “motor” having the device number “1” is rotating at a rotational speed of 5000 rpm. Similarly, it is printed out that the valve of the device number “2” “valve” is closed at time “8:15”. In the same manner, each device number is printed out. If the state of each device does not change in this way, it is not stored in the device operation DB 1. However, for example, at the time “13:02”, the rotation number of the “motor” with the device number “1” is not changed for some reason. When the speed is decreased from 5000 rpm to 3000 rpm, the operation state comparison unit 14 in FIG. 4 extracts the trouble item because it is different from the rotation speed of “5000 rpm” stored in the device operation normal value DB 19. Similarly, when the “lamp” of the device number “4” goes out for some reason at time “13:15”, this is also extracted as a trouble item. Further, when the “valve” of the device number “2” is opened for some reason at the time “17:10”, for example, the keyword “valve: open” is searched by the keyword search means 13 and matched. Extract as

  FIG. 6B is a diagram in which the above trouble items are collectively printed out. At the time “13:02”, the rotation number of the “motor” of the device number “1” is 3000 rpm, and the device at the time “13:15”. The fact that the “lamp” with the number “4” is turned off and the “valve” with the device number “2” is opened at the time “17:10” is printed out. This eliminates the need for the operator to visually search for a trouble item in FIG. 6A, and can analyze the cause of the trouble by analyzing the contents of FIG. 6B.

  FIG. 7 is a diagram illustrating an example of extracting trouble items from the device operation information of the power generation device. In this example, the heavy oil stored in the heavy oil tank 30 (device number 1) is controlled to open and close the valve 31 (device number 2) and sent to the burner 34 (device number 4) by the pump 32 (device number 3). Is generated in the pressurized tank 33 (equipment number 5), and the turbine 35 (equipment number 6) is rotated by the high-pressure steam to generate power. Then, the heavy oil volume data is output from the heavy oil tank 30, the valve valve opening / closing data is output from the valve 31, the motor speed is output from the pump 32, the temperature in the burner is output from the burner 34, and the pressurization is performed The pressure of the pressurized tank is output from the tank 33, and the rotational speed of the turbine is output from the turbine 35. These pieces of information are input to the peripheral device control device 6. Device operation information is also input from other control target devices 36. In addition, the normal value of each information shall be memorize | stored in the central control apparatus 2 previously. The capacity data of the heavy oil tank is regarded as abnormal when the amount of heavy oil used per unit time exceeds a specified value (that is, a tank leak is suspected). Also, if the rotation speed exceeds the range with a vertical range, it will be abnormal. Also, if the temperature and pressure are widened up and down and exceed that range, it is considered abnormal.

  FIG. 8 is a diagram illustrating an example of printing out the device operation information output from the power generation device of FIG. In this example, when the control information is output from the central controller 2, information indicating that 1500 KL of heavy oil is stored in the heavy oil tank 30 with the device number “1” is output at the time “8:00”, and the time “8” is output. : The information that the valve 31 of the device number “2” is open is output at “01”, and the rotational speed of the pump motor 32 of the device number “3” is 5000 rpm at the time “8:02”. Information is output, information indicating that the ignition temperature of the burner 34 with the device number “4” is 1500 ° C. is output at time “8:05”, and the pressurization with the device number “5” is performed at time “8:06”. Information indicating that the pressure in the tank 33 is 500 atm is output, and information indicating that the rotational speed of the turbine 35 of the equipment number “6” is 10,000 rpm is output at time “8:07”. These values are registered as initial values. Thereafter, the operation is started and, for example, the valve of the valve 31 with the device number “2” is closed for some reason at time “13:08”, so that heavy oil is not supplied to the pump 32. As a result, the load on the pump motor 32 is reduced at time “13:08”, and the rotational speed of the pump motor with the device number “3” is increased to 5500 rpm at time “13:09”.

  Next, there is an input from another control target device 36 at time “13:10”. Since heavy oil is not supplied to the burner 34, ignition is stopped and the ignition temperature of the burner 34 with the device number “4” suddenly drops to 500 ° C. at time “13:12”. Also, there are inputs from other control target devices 36 at times “13:13” and “13:14”. Next, the pressure in the pressurized tank 33 drops to 105 atm at time “13:15”. In the meantime, there is an input from another control target device 36 at time “13:17”. As a result of the decrease in the atmospheric pressure, the rotational speed of the turbine 35 with the equipment number “6” suddenly decreases to 5000 rpm at time “13:18”.

  As described above, the series of device operation information includes device operation information from other control target devices 36 that are not related to the power generation apparatus. If it is different from the value stored in the normal operation value DB 19 by the operation state comparison means 14, it is extracted as a trouble item.

It is a figure which shows the structure of the trouble analysis system which concerns on one Embodiment of this invention. 1 is a detailed block diagram of a central control device and a peripheral device control device according to a first embodiment of the present invention. It is a flowchart explaining operation | movement of the trouble analysis system which concerns on the 1st Embodiment of this invention. It is a detailed block diagram of the central control apparatus and peripheral device control apparatus which concern on the 2nd Embodiment of this invention. It is a flowchart explaining operation | movement of the trouble analysis system which concerns on the 2nd Embodiment of this invention. (A) is a figure which shows an example which printed out a series of apparatus operation information, (b) is the figure which printed out the said trouble item collectively. It is a figure which shows an example which extracts a trouble item from the apparatus operation information of an electric power generating apparatus. It is a figure which shows the example which printed out the apparatus operation information output from the electric power generating apparatus of FIG.

Explanation of symbols

  1 DB, 2 central control device, 3 control information, 4 control target device, 5 device operation information, 6 peripheral device control device, 7 CRT, 8 printer, 10 control information output means, 11 trouble report creation means, 12 central control 13, keyword search means, 14 operation state comparison means, 15 equipment operation information input means, 16 output means, 17 peripheral equipment control section, 18 keyboard, 19 equipment operation normal value DB, 100 trouble analysis system

Claims (9)

A trouble analysis system for extracting trouble information of a control target device from device operation information output from the control target device,
A central control device that outputs control information for controlling the control target device and determines an operation state of the control target device based on the device operation information; and the central control device that aggregates the device operation information And a peripheral device control device that outputs a determination result relating to the operation state based on an instruction of the central control device, and
The central control device, when outputting the determination result to the peripheral device control device, extracts trouble information of the control target device from the device operation information and outputs the trouble information to the peripheral device control device. Trouble analysis system.   The central control device is a control information output unit that outputs the control information to the control target device, a device operation database that stores the device operation information aggregated by the peripheral device control device, and a storage in the device operation database. A keyword search means for searching for a keyword related to trouble from the device operation information, a trouble report preparation means for generating a trouble report based on the keyword searched by the keyword search means, and a central control unit, The trouble analysis system according to claim 1, wherein the trouble analysis system is provided. The peripheral device control device includes a device operation information input unit that inputs the device operation information from a plurality of devices to be controlled in time series to the peripheral device control device, and based on an instruction from the central control device An output means for converting the determination result into a data format of the output terminal and outputting the output device, and a peripheral device control unit
The peripheral device control unit transmits at least information indicating a current device operation status, a time when the device operation information is received, a device number that outputs the device operation information, and a device name to the central control device. The trouble analysis system according to claim 1 or 2. The central control unit includes a device operation normal value database storing device operation information at normal time, device operation information input by the device operation information input means, and a device at normal time stored in the device operation normal value database. An operation state comparison means for comparing the operation information;
The central control unit outputs the device operation information as trouble information to the peripheral device control device when the results compared by the operation state comparison unit are different. 3. The trouble analysis system according to 3.   The system further comprises input means for inputting information to the peripheral device control device, and the central control device searches the device operation database based on the keyword input by the input device to extract a series of trouble items. The trouble analysis system according to any one of claims 1 to 4, wherein   The trouble according to any one of claims 1 to 5, wherein the keyword is information indicating the current device operation status, a time when the device operation information is received, and / or the device number. Analysis system.   The trouble analysis system according to any one of claims 1 to 6, wherein the central control unit can select whether or not to create the trouble report by the input unit.   7. The trouble according to claim 1, wherein the central control unit is configured to be able to select a time zone desired to be output by the input unit when the device operating state is output by the output unit. Analysis system.   The said central control apparatus displays the part regarding the said trouble information among the said determination results in a color display or a blink display when the said output means is a display, The Claim 1 characterized by the above-mentioned. Trouble analysis system.

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