JP2005258089A - Maintenance training system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a maintenance training system in which a dummy supervisory control board and a simulator are linked with each other in a state closed to an actual plant state, so that training for speedily performing S/W and H/W identification and restoration of a fault position can be performed. <P>SOLUTION: This system includes an image display operation terminal 100, an image display operation processor 101, and a computer 102 for a training simulator which are installed in an operation training room, a simulated supervisory control board 106 which is installed in a field to simulate plant actual machine environment, and a communication means 300 for supervision between the computer 102 for the training simulator and the simulated supervisory control board 106, wherein the training simulator computer 102 includes a plant simulating means and the simulated supervisory control board 106 includes an I/O 104 and a display part 105c. An operation trainee A observes plant simulation data and a maintenance trainer B observes an I/O signal and a controller state, so that an operation training and a field maintenance training for the plant actual machine environment are simultaneously carried out. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a maintenance training system for, for example, simulating a plant operator or the like, and more particularly to a maintenance training system capable of performing an operation training and a field maintenance training at the same time.

  As a conventional maintenance training system, a system has been proposed that includes a display means, an operation means, and a simulator, and provides driving training by providing a training disturbance application model in the simulator (for example, Patent Document 1). reference).

JP 9-212077 A

  Although the conventional maintenance training system is suitable for operation training to grasp the dynamic characteristics of the plant and perform the isolation operation, the simulation monitoring control panel is not installed as hardware at the actual site. Practical on-site maintenance training is not possible, including plant control equipment that occurs on site. Therefore, there is no method other than performing software identification and recovery of a faulty part including hardware, and there is a problem that it is impossible to realize training that realistically reproduces an actual plant operation state.

  The present invention has been made to solve the above-described problems, and is not a plant operation training using only a simulator simulator for training, but the simulation monitoring control panel and the simulator are linked in a state close to the actual plant operating state. Thus, an object of the present invention is to obtain a maintenance training system capable of realizing training for quickly identifying and recovering software and hardware failure sites.

  A maintenance training system according to the present invention is a maintenance training system for performing simulation training of an actual plant environment for an operation trainer in an operation training room and an on-site maintenance trainer, and is an operation installed in the operation training room. An image display operation terminal, an image display operation processor, and a training simulator computer for trainers, a simulation monitoring control panel installed on the site to simulate the actual plant environment, a training simulator computer and a simulation monitoring control panel A monitoring communication means for inputting / outputting signals to / from each other, the training simulator computer includes plant simulation means for generating plant simulation data of the actual plant environment, and the simulation monitoring control panel is a training simulator computer I / O interface unit connected to the I / O interface and I / O interface input / output via the I / O interface unit A display unit for a maintenance trainer that displays the Ace signal and the control device state of the simulation monitoring control panel, and the image display operation terminal displays the plant simulation data and is operated by the operation trainer, and the display unit In addition to displaying I / O interface signals and control device status, operation training and on-site maintenance training regarding the actual plant environment are performed simultaneously by being operated by a maintenance trainer.

  According to the present invention, a training simulator computer for displaying an image in an operation training room and a simulated monitoring control panel for simulating an actual plant environment in the field are connected to each other via a monitoring communication means so that signals can be input and output. By configuring the training team so that operation training and on-site maintenance training can be performed simultaneously, the simulator and simulated monitoring control panel are linked in a state close to the actual plant operating state, and software and hardware failure Training for quickly identifying and recovering a part can be efficiently realized.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing an overall configuration of a maintenance training system showing Embodiment 1 of the present invention.

  In FIG. 1, the maintenance training system according to the present invention is installed on an image display operation terminal 100, an image display operation processor 101 and a simulator facility (training simulator computer) 102 installed on the operation training room side, and on the site (field) side. A monitoring communication means (hereinafter referred to as a monitoring control device for the actual plant environment) 106 and a monitoring communication means for inputting / outputting signals between the image display operation processor 101 and the simulation monitoring control panel 106 (hereinafter referred to as a monitoring communication means). , Simply referred to as “communication means”) 300.

The training team is composed of a driving trainer A who becomes a training subject in the driving training room, a maintenance trainer B who becomes a training subject in the field, and a training lecturer C who becomes a technical supporter for training.
The image display operation terminal 100 functions as an interface for the driving trainer A and includes an operation panel and a display (not shown).

The image display operation processor 101 includes a communication unit 101 a connected to the communication unit 300 in order to transmit and receive various signals (data) to and from the simulated monitoring control panel 106.
As the communication means 300, it is necessary to use a network capable of securing a fixed period in order to approximate an actual plant. For example, Ethernet (Ethernet) to which a fixed-cycle token ring method and a fixed-cycle securing process are added. (Registered trademark) or the like is applied.

  The image display operation processor 101 branches the operation signal 200 s input through the image display operation terminal 100 by the operation of the driving trainer A into operation signals 201 s and 202 s to the simulator facility 102 and the simulation monitoring control panel 106. At the same time, the state signals 231s and 232s input from the simulator facility 102 and the simulation monitoring control panel 106 are merged and sent to the image display operation terminal 100 as the state signal 230s and displayed on the display.

The operation signal 201 s and the state signal 231 s indicate data values (or parameter values) for a portion that performs a control logic operation in the simulator facility 102.
On the other hand, the operation signal 202 s and the status signal 232 s indicate data values (or parameter values) for a portion where the control logic calculation is performed in the simulation monitoring control panel 106.

The simulator facility 102 includes a CPU 103 a that functions in association with the image display operation processor 101, and an I / O interface 103 b connected to the simulated monitoring control panel 106.
The CPU 103a is inserted into a plant simulation response program 103P that transmits and receives various signals (data) to and from the image display operation processor 101, a shared memory 103M that belongs to the plant simulation response program 103P, and an input line from the I / O interface 103b. Disturbance applying means 103c.

The plant simulation response program 103P performs physical calculation processing on input / output signals for the image display operation processor 101 in association with the shared memory 103M.
For example, the plant simulation response program 103P takes in the operation amount MV (for example, the valve opening) of each operating device included in the operation signal 201s as the operation signal 211s, and reads the process state value PV (for example, read from the shared memory 103M) , Flow rate) is included in the state signal 231 s input to the image display operation processor 101 and sent as the operation signal 221 s.

The disturbance applying unit 103c applies a disturbance element according to the operation of the training instructor C to the data signal input via the I / O interface 103b to generate disturbance data, and stores the disturbance data in the shared memory 103M. Also, the disturbance applying means 103c applies disturbance elements according to the operation of the training instructor C to the data 222 in the shared memory 103M to generate disturbance data, which is sent to the simulated monitoring control panel 106 via the I / O interface 103b. Let them enter.
The shared memory 103M has a communication input area, a communication output area, a program input area, and a simulated output area in relation to input / output signals (data) via the image display operation processor 101 and the I / O interface 103b. Data 201, 231, 211, 212, 222, and 221 corresponding to the area are stored.

On the other hand, a simulation monitoring control panel 106 functioning as a simulation test facility for a plant actual machine environment on the site side includes an I / O interface unit 104 (including hardware of the plant actual machine environment), a CPU unit 105, a communication unit 105a, An I / O communication master unit 105b and a display unit 105c are provided.
In the simulated monitoring control panel 106, the I / O interface unit 104, the I / O communication master unit 105b, the communication unit 105a, and the display unit 105c are all related to the CPU unit 105.

  The I / O interface unit 104 in the simulation monitoring control panel 106 constitutes an actual machine environment simulation H / W, and is connected to the I / O interface 103b in the simulator facility 102 that performs on-site field simulation via the wiring 107. Has been. Thus, the CPU unit 105 in the simulation monitoring control panel 106 is connected to the CPU 103a in the simulator facility 102 via the I / O interface unit 104 and the I / O interface 103b.

The I / O interface unit 104 outputs an instruction signal (for example, an adjustment valve opening, a switch ON / OFF, etc.) to various plant controllers as a control output manipulated variable 212s.
The control output manipulated variable 212s is input to the program input area of the shared memory 103M via the I / O interface 103b and the disturbance applying unit 103c.

  Also, the I / O interface unit 104 is a CPU unit that takes in plant simulation feedback parameters (for example, flow rate, water level, temperature, etc.) 222s input from the shared memory 103M via the I / O interface 103b as plant state values. 105.

The display unit 105c also functions as an interface for the maintenance trainer B and includes an operation unit (not shown).
The plant state value 222s is displayed on the display unit 105c in response to the operation requested by the maintenance trainer B.

In the shared memory 103M in the simulator facility 102, each data 201, 231, 211, and 221 corresponds to a data value (or parameter value) for a portion that performs a control logic operation in the simulator facility 102.
On the other hand, each of the data 212 and 222 in the shared memory 103M corresponds to a data value (or parameter value) for a part that performs a control logic operation in the simulation monitoring control panel 106.

That is, the data 201 in the communication input area is a value corresponding to the operation signal 201s, and the data 231 in the communication output area is a value corresponding to the status signal 231s.
Similarly, the data 211 in the program input area is a value corresponding to the control output manipulated variable, and the data 221 in the simulated output area is a value corresponding to the plant state value.

On the other hand, the data 212 in the program input area is a value corresponding to the control output manipulated variable 212s, and the data 222 in the simulated output area is a value corresponding to the plant state value 222s.
In FIG. 1, of the data (signals), the data for the part that performs the control logic calculation in the simulator facility 102 is indicated by “black block”, and the data for the part that performs the control logic calculation in the simulated monitoring control panel 106. The data is indicated by “hatched blocks”.

The CPU 103a in the simulator facility 102 functions as plant simulation means for generating plant simulation data (state signal 231s) of the actual plant environment, and displays the plant simulation data on the display of the image display operation terminal 100.
In addition, the display unit 105 c in the simulation monitoring control panel 106 displays an I / O interface signal input / output via the I / O interface unit 104.
Examples of the I / O interface signal include not only the plant state value 222 s but also a control logic operation state (including internal intermediate operation parameters) in the CPU unit 105.

The CPU 103a and the CPU unit 105 perform two-way communication of data corresponding to the actual plant environment and input / output of signals on the field (field) side via the communication means 300 and the signal line. A observes the plant simulation data, and the on-site maintenance trainer B observes the I / O interface signal.
As a result, simulation training of the actual plant environment is performed for the operation trainer A in the operation training room and the maintenance trainer B in the field according to the intervention (disturbance application) of the training instructor C. Training and field maintenance training are performed simultaneously.

Next, the operation of the maintenance training system according to the first embodiment of the present invention shown in FIG. 1 will be described more specifically.
As described above, the driving trainer A in the training team monitors and operates the image display operation terminal 100 on the driving training room side, and the maintenance trainer B monitors and restores the simulated monitoring control panel 106 on the site side, The training instructor C applies a disturbance element in software to the disturbance applying unit 103c.

The driving trainer A observes the display screen of the image display operation terminal 100 to grasp the abnormal state of the plant system and estimates the failure location.
Subsequently, the operation trainer A operates the operation panel of the image display operation terminal 100 to continue the plant operation, and the maintenance trainer B determines whether the hardware input / output values around the estimated failure location are correct. Let me investigate.

The maintenance trainer B measures the current and voltage of the I / O interface unit 104 in the simulation monitoring control panel 106 or the contact state of conduction and non-conduction.
Subsequently, the maintenance trainer B identifies the failure location of the I / O interface unit 104 related to the failure location estimated by the operation trainer A, recovers (replies to the training instructor C), and the display of the image display operation terminal 100 Display on the screen and report to driving trainer A.

  That is, the operation trainer A estimates that a failure has occurred on the simulated monitoring control panel 106 (monitoring control device) or the field sensor side of the plant, and manually operates the plant even during the recovery by the maintenance trainer B. Perform training for backup operation at.

  As described above, the simulator facility 102 and the simulation monitoring control panel 106 are connected to each other via the communication means 300 so that signals can be input / output to each other, and data communication equivalent to an actual machine and input / output of field signals are performed. For the person A and the on-site maintenance trainer B, simulation training of the actual plant environment according to the intervention (disturbance application) of the training instructor C is performed.

As a result, the operation training and the field maintenance training by the training teams A to C regarding the actual plant environment can be performed simultaneously.
Therefore, the simulator facility 102 and the simulation monitoring control panel 106 are interlocked with each other in a state close to the actual plant operating state to quickly identify and recover a software-like and hardware-like failure site, and to manually back up the plant. It is possible to efficiently implement training for continuing operation at

Embodiment 2. FIG.
In the first embodiment (see FIG. 1), training for the simulated failure of the simulated monitoring control panel 106 itself is not considered, but maintenance training for the simulated monitoring control panel 106 may also be performed.

FIG. 2 is a block diagram showing an overall configuration of a maintenance training system according to Embodiment 2 of the present invention, and shows an example in which maintenance training is also performed on a simulated monitoring control panel.
In FIG. 2, the same components as those described above (see FIG. 1) are denoted by the same reference numerals as those described above, or “A” is appended to the reference numerals and detailed description thereof is omitted.

In this case, in addition to the configuration described above (FIG. 1), switches 122a, 122b, 123a, and 123b that can be opened and closed from the outside are provided as means for generating a failure simulation related to the simulation monitoring control panel 106A.
Further, the internal configuration of the I / O interface 103b in the simulator facility 102 and the I / O interface unit 104 in the simulation monitoring control panel 106A is specifically shown.

In the simulator facility 102, the I / O interface 103b includes an analog input unit 103d, an analog output unit 103e, and a terminal block 103f.
The analog input unit 103d and the analog output unit 103e are each connected to the shared memory 103M and to the wiring 107 via the terminal block 103f.

In the simulation monitoring control panel 106A, the CPU unit 105, the communication unit 105a, the I / O communication master unit 105b, and the display unit 105c constitute an actual machine environment simulation H / W 105d.
The interface unit 104 includes an analog output unit 104a, an analog input unit 104b, and a terminal block 104c.

  The analog output unit 104a and the analog input unit 104b are connected to the I / O communication master unit 105b via the switches 122a and 122b, respectively. The analog output unit 104a and the analog input unit 104b are connected to the wiring 107 through the terminal block 104c.

In the wiring 107, switches 123a and 123b are inserted, and an output signal (described later) of the noise simulator 121 is superimposed.
The noise simulator 121 and the switches 122a, 122b, 123a, and 123b are operated by the training instructor C.
The switches 122a and 123a constitute failure simulation generating means for the analog output unit 104a, and the switches 122b and 123b constitute failure simulation generating means for the analog input unit 104b.

In this case, the CPU unit 105 in the simulation monitoring control panel 106A includes maintenance calculation means.
As shown in FIG. 2, by adding failure simulation generation means for generating failure simulation data of the simulation monitoring control panel 106A, the training teams A to C can perform maintenance training and operation training for failures in field wiring, sensors, actuators, and the like. In addition, maintenance training for the on-site simulated monitoring control panel 106A can also be performed.

  That is, the maintenance trainer B uses the display unit 105c as an interface to observe an I / O interface signal, and operates the CPU unit 105 (maintenance calculation means) via the display unit 105c to control the simulation monitoring control panel 106A. By grasping the abnormal state, maintenance training for the simulation monitoring control panel 106A is performed simultaneously with failure simulation training for field wiring, sensors, and actuators.

  At this time, the training instructor C manually sets the noise simulator 121 for the simulation monitoring control panel 106A, the failure simulation generation means 122a and 123a for the analog output unit 104a, and the failure simulation generation means 122b and 123b for the analog input unit 104b. Set and cause a simulation of the simulation monitoring control panel 106A.

For example, the OFF operation of the switch 123b and the failure simulation by the noise simulator 121 include disconnection of the sensor input circuit in the actual site (field), loosening of the terminal block of the sensor input circuit, and continuous burst cups to the sensor input circuit. Corresponds to ring noise superimposition (local earth system failure simulation).
Similarly, failure simulation by turning OFF the switches 122a and 122b corresponds to simulation of failure of the input / output card of the simulation monitoring control panel 106A.

Next, a specific training procedure according to the second embodiment of the present invention shown in FIG. 2 will be described with reference to FIGS.
3-5 is explanatory drawing which shows the screen of the display part 105c in time series.
FIG. 3 is a trend screen for operation monitoring. Time when disturbances of failure simulations C1 to C4 are applied to the SG water level (analog input), the main water supply flow rate, and the main water supply control valve opening (analog output). The change is shown by paying attention to the value for each time (13:30, 13:34, 13:37,...).

FIG. 4 is an alarm monitoring screen showing alarm items “SG water level high, main steam pressure low, main steam flow high, etc.” for each alarm occurrence time.
FIG. 5 shows, as an example of a training scenario, the processing procedure of the training team at each time from the start of applying a disturbance of a fault simulation (measured value of main water supply flow rate <actual flow rate) to completion of training.

  First, the training instructor C operates the disturbance applying unit 103c to superimpose disturbance data on the input signal (plant simulation feedback parameter 222s) of the I / O interface unit 104. Specifically, for example, a coefficient “0.9” is multiplied so that the input signal 222s becomes smaller than the data 222 in the shared memory 103M (222s = 0.9 × 222).

  The driving trainer A who monitors and operates the image display operation terminal 100 grasps the abnormality of the plant system on the display screen, estimates the failure location, and operates the image display operation terminal 100 to communicate via the communication means 300. Thus, the failure data is transmitted to the simulation monitoring control panel 106A, and the maintenance trainer B who performs monitoring investigation recovery at the site is made to investigate whether or not the hardware input / output values around the estimated failure location are correct.

The maintenance trainer B measures the current value and voltage value of the I / O interface unit 104 by observing the simulated monitoring control panel 106A, and the signal 222s input to the analog input unit 104b is smaller than the data 222. And report to Training Instructor C.
The operation trainer A continues the operation by manual operation even while the maintenance trainer B investigates the input signal of the simulated monitoring control panel 106A.

In this way, by providing a means for generating a failure simulation in the simulation monitoring control panel 106A that simulates the actual machine environment in the field, the operation trainer A has a normal plant sensor side and the simulation monitoring control panel. Training can be performed to identify that a failure has occurred inside 106.
As a result, in addition to operation training, the training team can also perform maintenance training on the on-site simulated monitoring control panel 106A.
Further, as described above, when the training instructor C operates the noise simulator 121 and the switches 122a, 122b, 123a, and 123b, the maintenance trainer B similarly observes the display unit 105c, thereby simulating the simulated monitoring control panel. It is possible to perform a simulation training to determine a failure of the input / output unit 106A and the like and to take an appropriate and quick response.

Embodiment 3
In the second embodiment (FIG. 2), the training instructor C directly operated the simulated failure generating means of the simulated monitoring control panel 106A, but another maintenance training failure related to the simulator facility 102 (training simulator computer). A simulation generator computer may be provided, and the maintenance instructor C may operate the maintenance training failure simulation generator computer so that the maintenance training for the simulation monitoring control panel 106A is automatically executed with a predetermined failure training pattern.

FIG. 6 is a block diagram showing the overall configuration of the maintenance training system according to Embodiment 3 of the present invention, and maintenance training failure simulation generation for executing maintenance training for the simulation monitoring control panel 106B in accordance with a predetermined failure training pattern. An example in which a computer 120 is provided is shown.
In FIG. 6, the same components as those described above (see FIGS. 1 and 2) are denoted by the same reference numerals as those described above, or “B” after the symbols, and detailed description thereof is omitted.

In this case, switches 124a, 124b, 125a, and 125b that can be opened and closed from the outside are provided in addition to the noise simulator 121 similar to the above as means for generating a failure simulation related to the simulation monitoring control panel 106B.
Further, the simulator facility 102B includes a communication unit 131 for communicating with the maintenance training failure simulation occurrence computer 120.

  Each switch corresponds to the above-described switch 122a, 122b, 123a, 123b (see FIG. 2), and the switches 124a and 125a constitute failure simulation generating means for the analog output unit 104a. 125b constitutes a failure simulation generation means for the analog input unit 104b.

In FIG. 6, a maintenance training failure simulation occurrence computer 120 is connected to the simulator facility 102 </ b> B and the simulation monitoring control panel 106 </ b> B via the communication means 330.
The maintenance training failure simulation computer 120 includes a communication unit 120a, a CPU unit 120b, and a contact output unit 120c.
In response to the operation of the training instructor C, the CPU unit 120b automatically generates failure simulation data according to a predetermined failure training pattern from the communication unit 120a and the contact output unit 120c.

The communication unit 120a of the maintenance training failure simulation computer 120 is connected to the communication unit 131 in the simulator facility 102B and the communication unit 105a in the simulation monitoring control panel 106B.
The disturbance applying means 103c, the noise simulator 121, and the switches 124a, 124b, 125a, and 125b are controlled via the maintenance training failure simulation occurrence computer 120 in response to the operation of the training instructor C.

Next, the operation of the maintenance training system according to Embodiment 3 of the present invention shown in FIG. 6 will be described.
First, when the training instructor C operates the maintenance training failure simulation / occurrence computer 120, the maintenance training failure simulation / occurrence computer 120 controls the disturbance applying unit 103c via the communication unit 120a and the communication unit 131 in the simulator facility 102B. The noise simulator 121 is controlled via the communication unit 120a.

The maintenance training failure simulation computer 120 causes the display unit 105c to display fault data and the like via the communication unit 120a and the communication unit 105a in the simulation monitoring control panel 106B, and each contact output unit 120c. The switches 124a, 124b, 125a and 125b are controlled to open and close.
At this time, the CPU unit 120b in the maintenance training failure simulation occurrence computer 120 controls the patterns for the disturbance applying means 103c, the noise simulator 121, the switches 124a, 124b, 125a and 125b with a predetermined failure simulation pattern.

Thereafter, as described above, the operation trainer A grasps the abnormality of the plant system on the screen, identifies the failure location, and informs the maintenance trainer B whether the hardware input / output values around the failure location are correct. Let me investigate.
The maintenance trainer B collects internal error information of the simulated monitoring control panel 106B, measures the current value and voltage value (I / O interface signal) of the interface unit, and reports the measurement result to the operation trainer A.

  The driving trainer A generates a failure from within the wide range on the field sensor side and the simulated monitoring control panel 106B side based on the instruction value on the image display operation terminal 100 and the input / output values between the simulated monitoring control panel 106B. The location is identified, and maintenance trainer B is instructed to restore the location where the failure occurred.

In this way, by providing the maintenance training fault simulation generating computer 120 as means for automatically generating fault simulation with a predetermined fault training pattern in the on-site simulation monitoring control panel 106B, the training instructor C can easily perform fault simulation. A pattern can be set.
In the same manner as described above, the operation trainer A and the maintenance trainer B perform maintenance training that identifies and restores an abnormal part on the field sensor side or the simulated monitoring control panel 106B side under a situation close to the actual situation of the plant. Can be performed simultaneously and efficiently.

Embodiment 4
In the third embodiment (FIG. 6), technical support for the maintenance trainer B was not considered, but a remote maintenance center isolated from the operation training room and the site was installed, and the technical supporter was the maintenance trainer. B may be configured to provide technical support.

FIG. 7 is a block diagram showing the overall configuration of the maintenance training system according to Embodiment 4 of the present invention, and shows an example in which a remote maintenance center 140 (design office, etc.) associated with the technical support person D is installed. .
In FIG. 7, the same components as those described above (see FIG. 6) are denoted by the same reference numerals as those described above, and detailed description thereof is omitted.

In this case, a remote maintenance center 140 isolated from the operation training room and the site is connected to the communication unit 105a of the simulation monitoring control panel 106B so as to be able to communicate with each other.
Between the simulated monitoring control panel 106B and the remote maintenance center 140, a security BOX 132 on the simulated monitoring control panel 106B side and a remote maintenance server / maintenance tool personal computer 133 are interposed, and the Internet 150 is used as a maintenance communication means. Is provided.
The remote maintenance server / maintenance tool personal computer 133 has functions of a remote maintenance server on the site side and the maintenance tool personal computer 133 of the simulation monitoring control panel 106B.

  The remote maintenance center 140 includes a remote maintenance client personal computer 141 installed in a design office or the like, a remote maintenance server 142 installed in a maker factory, a security device 143, and an intranet 144.

  The remote maintenance client personal computer 141 and the remote maintenance server 142 are connected to the security device 143 via the intranet 144 and further connected to the security BOX 132 and the remote maintenance server / maintenance tool personal computer 133 via the Internet 150.

The remote maintenance client personal computer 141 constitutes a maintenance computer including technical support means in the remote maintenance center 140, and has an operation unit and a display unit (not shown) for the technical supporter D.
The remote maintenance client personal computer 141 inputs and outputs signals to and from the CPU 103a (simulator computer) in the simulator facility 102B and the CPU unit 105 in the simulation monitoring control panel 106B via the intranet 144 and the Internet 150. The transmission / reception data is displayed according to the operation of the technical supporter D.

  On the other hand, the remote maintenance server 142 stores an FT diagram (described later), a quality database, and the like, and is connected to the remote maintenance client personal computer 141 via a data bus associated with the intranet 144.

  As shown in FIG. 7, by installing the remote maintenance center 140, the maintenance trainer B observes the technical support data based on the support operation of the technical support person D on the display unit 105c, thereby the remote maintenance center 140. On-site maintenance training can be performed while receiving technical support from

Next, the operation of the maintenance training system according to the fourth embodiment of the present invention shown in FIG. 7 will be described.
First, in the same manner as described above, the maintenance training fault simulation computer 120 receives control data for the disturbance applying unit 103c and the noise simulator 121 from the communication unit 120a in a predetermined pattern in response to the operation of the training instructor C. And outputs a control signal for each switch (failure simulation generating means) 124a, 124b, 125a, 125b from the contact output unit 120c.

  In addition, the operation trainer A grasps the abnormality of the plant system, identifies the failure location, causes the maintenance trainer B to check whether the hardware input / output values around the failure location are correct, and the maintenance trainer B The error information collection in the simulation monitoring control panel 106B and the measurement result of the interface signal value are reported to the driving trainer A.

  At this time, if the operation trainer A cannot easily identify the location where the failure has occurred from the indicated value and the input / output value of the simulation monitoring control panel 106B, the operation trainer A will ask the remote maintenance center 140 to While notifying the failure occurrence status, the maintenance trainer B is instructed to identify and recover the failure location while receiving technical support from the remote maintenance center 140.

  Next, referring to the flowchart of FIG. 8, between the field side maintenance trainer B (site maintenance staff) and the technical support person D (lecturer) on the remote maintenance center 140 side according to Embodiment 4 of the present invention. A specific information communication operation will be described. In this case, the technical supporter D can be a training target.

  In FIG. 8, first, the field maintenance trainer B reports the situation of occurrence of a local failure (for example, that a failure has occurred in the simulated monitoring control panel 106B) to the technical support person D on the remote maintenance center 140 side ( Step S401).

  The technical supporter D transmits the error log data (failure data, detailed data) transmitted from the maintenance trainer B from the communication unit 105a of the simulation monitoring control panel 106B, the remote maintenance server / maintenance tool personal computer 133, the security BOX 132, Collected and acquired via the Internet 150, the security device 143, the intranet 144, and the remote maintenance client personal computer 141 (step S402).

Next, the technical supporter D extracts a standard FT diagram that has been upgraded by accumulating past troubles, their causes, and measures from the remote maintenance server 142 to the remote maintenance client personal computer 141 (step S403).
Subsequently, the standard FT diagram is displayed on the remote maintenance client personal computer 141 and the display unit 105c in the simulation monitoring control panel 106B, and a message “Can you see the standard FT diagram?” Is transmitted to the simulation monitoring control panel 106B. The standard FT diagram is shared with the maintenance trainer B (step S404).

  Thereafter, the maintenance trainer B sends a message “I can see the standard FT diagram” to the remote maintenance center 140 and reports to the technical supporter D that the standard FT diagram has been shared (step S405). As a result, the technical support person D confirms that the standard FT diagram has been shared (step S406).

Next, as a result of analyzing the error log, the technical supporter D instructs the maintenance trainer B to conduct an on-site investigation for possible factors (step S407).
At this time, as the factor analysis, for example, “A bus master card time-out error has occurred as a result of analyzing the error log.”, “Possible factors are shown in the shared FT diagram. And fill in the results. "

  In response to this, maintenance trainer B fills the shared FT diagram with the field survey and results, and sends a message “The survey results have been filled in the shared FT diagram” to technical supporter D. The investigation and the result are reported (step S408).

Thereby, the technical support person D confirms and analyzes the investigation result of the FT diagram (step S409), and instructs the maintenance trainer B to replace and repair the failed part (step S410).
At this time, as an instruction to the site, for example, "The result of analyzing the FT diagram is presumed to be caused by looseness of the serial communication cable of the bus master card.", "CH1 of the A bus master card and the B bus Make sure to connect the serial communication cable with CH1 of the master card. "

In accordance with this, the maintenance trainer B performs the field treatment and reports the completion of the field treatment to the technical support person D (step S411).
At this time, as a report to the remote maintenance center 140, for example, “The serial communication cable between the CH1 of the A bus master card and the CH1 of the B bus master card has been securely connected.” , All errors have disappeared and have been successfully restored. "
Finally, the technical support person D of the remote maintenance center 140 confirms the completion of the treatment (step S412), and ends the training processing routine of FIG.

Thus, by providing the remote maintenance center 140 as a means for receiving technical support from the technical supporter D, on-site maintenance training for difficult and advanced fault simulation can be performed.
That is, even if the operation trainer A and the maintenance trainer B are close to the actual situation of the plant, even if it is difficult to identify the abnormal part on the field sensor side or the simulated monitoring control panel 106B side only on the site side. While receiving technical support from the remote maintenance center 140, it is possible to simultaneously and efficiently perform maintenance training for identifying and recovering from a failure location.

It is a block diagram which shows the whole structure of the maintenance training system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the whole structure of the maintenance training system which concerns on Embodiment 2 of this invention. It is explanatory drawing which shows the specific training procedure of the maintenance training system which concerns on Embodiment 2 of this invention. It is explanatory drawing which shows the specific training procedure of the maintenance training system which concerns on Embodiment 2 of this invention. It is explanatory drawing which shows the specific training procedure of the maintenance training system which concerns on Embodiment 2 of this invention. It is a block diagram which shows the whole structure of the maintenance training system which concerns on Embodiment 3 of this invention. It is a block diagram which shows the whole structure of the maintenance training system which concerns on Embodiment 4 of this invention. It is a flowchart which shows the specific training procedure of the maintenance training system which concerns on Embodiment 4 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 Image display operation terminal, 101 Image display operation processor, 101a Communication part, 102, 102B Simulator equipment, 103a CPU, 103b I / O interface, 103c Disturbance application means (fault simulation generation means), 103M shared memory, 103P plant simulation response Program, 104 I / O interface unit, 105 CPU unit, 105a communication unit, 105c display unit, 106, 106A, 106B Simulation monitoring control panel, 120 Maintenance training failure simulation computer, 120a communication unit, 120b CPU unit, 120c Contact output , 121 Noise simulator (fault simulation generating means), 122a, 122b, 123a, 123b, 124a, 124b, 125a, 125b Switch (fault simulation generating means), 140 Remote maintenance center 141 Remote maintenance client personal computer 142 Remote maintenance server 144 Intranet 150 Internet (maintenance communication means) 200 s 201 s 202 s Operation signal 211, 212 Control output manipulated variable 220 221 Plant state value 230 s 231s, 232s status signal, 300 communication means (monitoring communication means), A operation trainer, B maintenance trainer.

Claims (4)

A maintenance training system for simulating a plant actual machine environment for operation trainers in the operation training room and on-site maintenance trainers,
An image display operation terminal for an operation trainer installed in the operation training room, an image display operation processor, and a training simulator computer;
A simulation monitoring control panel for simulating the actual plant environment installed at the site;
Monitoring communication means for inputting / outputting signals between the training simulator computer and the simulated monitoring control panel,
The training simulator computer includes plant simulation means for generating plant simulation data of an actual plant environment,
The simulated monitoring control panel is:
An I / O interface unit connected to the training simulator computer;
A maintenance trainer display unit for displaying an I / O interface signal input / output via the I / O interface unit and a control device state of the simulated monitoring control panel;
The image display operation terminal displays the plant simulation data and is operated by the operation trainer,
The display unit displays the I / O interface signal and the control device state, and is operated by the maintenance trainer,
An operation training system and an on-site maintenance training regarding the actual plant environment are executed simultaneously. The simulation monitoring control panel includes failure simulation generating means for generating failure simulation data, and calculation means for maintenance,
The maintenance calculation means is operated by the maintenance trainer,
The display unit displays the I / O interface signal and displays an abnormal state of the simulation monitoring control panel.
The maintenance training system according to claim 1, wherein maintenance training is performed on the simulated monitoring control panel. Maintenance training failure simulation occurrence computer related to the training simulator computer and the simulation monitoring control panel,
The maintenance training system according to claim 2, wherein the maintenance training fault simulation computer automatically generates the fault simulation data according to a predetermined fault training pattern. A remote maintenance center separated from the operation training room and the site;
A maintenance communication means for inputting / outputting signals to / from each other between the training simulator computer in the operation training room and the simulation monitoring control panel, and the maintenance computer in the remote maintenance center,
The maintenance computer includes technical support means for generating technical support data,
The display unit displays the technical support data and is operated by the maintenance trainer,
The maintenance training system according to claim 2 or 3, wherein the on-site maintenance training is executed.

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