JPH0961587A - Plant operation monitoring method and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assure the interlock control of voice and improve the operational safety by taking in the voices of operation instruction, pointing with the finger and call and confirmation reponse, discriminating the caller, calling matter and operation objective instruments, comparing the matter with the operational procedure stored in advance and blocking the input operation command in case of disagreement. SOLUTION: A call of operation initiation instruction is taken in from a voice input device, whether or not the operation coincides with the plant state is judged and in the case of yes, with a response of operator next operation is proceeded. Similarly, by confirming the parameters in the central control room, whether the signal names and state values are normal values and whether the objective signals are confirmed, are judged. Also, whether the objective instrument and the operation coincide between the confirmation instruction call to site operators and the paging call of confirmed results are judged, and with a response of operators, next operation is proceeded. In this manner the voice of operators such as calls is interlocked and safety consciousness of multiple check and instruction confirmation system by a plurality of operators is built in the controller so that the improvement of operation reliability is made possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant operation monitoring method and apparatus for operating a plant such as a nuclear power plant, and more particularly to safety and reliability of operation by an operator without increasing the burden on the operator. The present invention relates to a plant operation monitoring method and apparatus suitable for improving the operation.

[0002]

2. Description of the Related Art In the case of a plant such as a nuclear power plant where importance is placed on safety, it is particularly important to prevent the occurrence of a plant abnormality due to an erroneous operation. Therefore, conventionally, in addition to the operator's start operation of the equipment, the plant state is incorporated as an interlock condition, and even if the start operation is an erroneous operation, if the plant state does not satisfy the start condition of the equipment,
The device is not started.

From the viewpoint of preventing erroneous operation by operators, it is widely recognized that the operation by pointing and calling is effective, and is widely applied in actual plant operation. In the prior art described in Japanese Patent Application Laid-Open No. 58-87601, in order to use the pointing and pointing name for plant operation, for example, voice input "pump A start" and operator's "pump A start operation" input. And the starting signal of the pump A is actually input to the plant when they coincide with each other, and the safety is further improved.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the conventional technology described in Japanese Patent No. 87601, only the match / mismatch between the name of a certain operator and the operation signal is observed.
There is a problem that the series of names and responses of multiple operators in the main control room cannot be fully utilized for improving the safety of plant operation. Also, if the device does not start up even though the operation command of the device is input, it is not possible to confirm whether the cause is a mismatch between the "designation" and the operation signal or other cause. is there.

An object of the present invention is to provide a plant operation monitoring method capable of sufficiently utilizing a series of voice linkages in a main control room for improving the safety of plant operation and easily confirming the transition of voice interlock control. And to provide the device.

[0006]

Means for Solving the Problems The above-mentioned object is to utter an operation instruction when operating a plant-constituting device, and an operator who receives the operation instruction points the device name to the pointing device. On the other hand, in the plant operation monitoring method in which the actual operation command of the device is input after the voice confirmation response is received, a series of voices of the operation instruction, the pointing name, and the confirmation response is captured to perform voice recognition processing. Identify each utterer and identify each utterance content and operation target device,
A series of procedures and contents for the operation of the device stored in advance in the database are collated with the order and the identified contents of the utterance and the operation target device, and if there is a mismatch, the actual operation command is input. This is achieved by blocking the operation command.

The above object can also be achieved by blocking the operation command even when the actual operation command is input when there is a mismatch and displaying the guide of the mismatch on the display device.

The above-mentioned object is also to allow the input of the actual operation command when all of the series of procedures match,
Achieved.

[0009] The above-mentioned object is also that, when performing collation, an identification mark indicating the next speaker and a collation result based on the voice recognition result of the utterance by the speaker are displayed on the screen of the display device so that the series of steps can be performed. It will be achieved by displaying them sequentially.

The above object is also achieved by bypassing the block according to the collation result for a pre-designated voice in a series of procedures.

The above-mentioned object is also to permit the input of the actual operation command when the permission signals are output at every step when the collation results at each step of the series of procedures match and when the permission signal is output at all steps. When the set time or more elapses before the utterance of the next step after the permission signal of a certain step is output, it is achieved by canceling the permission signal of the previous step.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall system configuration diagram of a plant operation monitoring apparatus according to an embodiment of the present invention. This plant operation monitoring device is composed of an input / output device, a process computer 4, and a controller 5 that comprehensively controls the start / stop of system equipment 6.

The input / output device is a touch panel 1 for inputting a command by an operator's touch operation, a CRT display device 2 for displaying various operating information (plant status, etc.) to the operator, and an operator whose details will be described later. It is composed of a voice input device 3 such as a microphone that takes in voices such as “name” and “response”. In recent years, instead of the CRT display device 2, flat display devices such as plasma displays and liquid crystal displays have become widespread, and these can be used.

The process computer 4 is the above-mentioned devices 1 to 3.
Controller unit 4-A for controlling CPU and arithmetic processing unit 4-B
And a database 4-C having a later-described permission interlock rule corresponding to each operation, and an interface unit 4-D having an interface function with the controller 5.
Consists of

Plants, especially nuclear power plants, have a high awareness of erroneous operation prevention, and regarding the linkage of each operator (shift supervisor, chief, main engine operator, auxiliary equipment operator, etc.) involved in operating the equipment, the operation procedure manual is basically used. Is defined by. Less than,
The explanation will be made by paying attention to the cooperation between the operators.

Although the instructor to start the operation differs depending on the importance of the device to be operated, in this example, an important operation such as switching of the operation mode switch will be described as an example. When the plant condition related to the operation start is satisfied (such as the guide output of the operation by automation), the main engine operator who is the actual operator (hereinafter referred to as the operator) from the operation start command by the shift supervisor who is the operation manager. By the time the operation by (.) Is started, the linked operation between operators as shown in the following example is performed.

(1) The shift supervisor calls an instruction to start the operation. (2) The chief and operator receive instructions from the shift supervisor, and carry out operation preparations (confirmation of related parameter status in the main control room and confirmation instructions to site operators, etc.) in accordance with the operating procedure manual. (3) The chief or operator confirms that the state of the related parameters related to the operation start is normal by the pointing and naming of each instrument and indicator, and calls “no abnormality”. (4) The site operator confirms that the state of the site parameter and the state of the equipment related to the operation start are normal by pointing and calling, and calls by paging if there is no abnormality.

(5) After confirming that the operation start condition is normal (main control room and on-site), the chief calls the operator for an operation start instruction. (6) The operator designates the operation switch of the device by pointing and calls the operation switch by using the switch. (7) The operator calls the operation completion of the device operation start and calls the behavior of the related parameter at any time. Incidentally, in response to an operation instruction or a call of a name by each operator, a confirmation response by another operator is always returned.

As can be seen from this example of the linked operation, in the actual driving operation, the "operation instruction" by the verbal
"Pointing and calling" from the viewpoint of erroneous operation and erroneous judgment, and "response" by the confirmer are frequently performed to realize quick and highly reliable driving operation. In the plant operation monitoring apparatus according to the present embodiment, in order to further enhance the reliability of the above-described linking operation, the plant operation control is interlocked using the voice signal called at each stage of the linking operation.

That is, the voice input device 3 shown in FIG. 1 captures voices such as "operation instruction", "designation", and "response" issued by each operator in each of the above-mentioned steps (1) to (7). . Then, the calculation unit 4-B analyzes the signal input from the voice input device 3, and calculates the voice speaker (the shift chief,
Chief, operator, etc.), operation target equipment, operation contents (start, stop, flow rate increase, etc.), and utterance type (operation instruction, name, response, etc.) by voice recognition technology. .

The database 4-C stores, for each operation related to plant operation, a time-series procedure for cooperation between operators in the operation and a plant condition for each operation as a rule base. Part 4-B
Uses the data stored in the database 4-C, and outputs various interlock signals to the controller 5 via the interface unit 4-D, as will be described later in detail.

In addition to the conventional interlock signal related to activation permission, the controller 5 has the interface section 4 described above.
By incorporating the permission signal input from -D as an AND condition, the operator's "operation instruction" relating to equipment operation
Voices such as “name” and “response” are added as interlock conditions.

FIG. 2 is a functional block diagram of the plant operation monitoring apparatus shown in FIG. As shown in FIG. 2, a symbol of the operation target device is displayed on the display screen of the display device 2 equipped with the touch panel 1 of FIG. When the operator wants to fully close the main steam valve, for example, he selects (touches) the symbol of the main steam valve from the device symbols. The process computer configured by the arithmetic unit 4-B shown in FIG. 1 receives the device selection by the operator, displays the reception symbol on the display screen, and outputs the device selection command to the controller.
The controller outputs a device selection acceptance signal to the process computer, and when the process computer confirms the device selection acceptance signal, the display device displays a touch switch for selecting the operation direction (if the valve is fully open or fully closed). . When the operator selects the operating direction with this touch switch, this selection signal is input to the controller through the process computer.

The controller receives the operation direction selection signal and outputs the reception signal when the device selection reception signal is output and the operation direction selection signal by the touch switch is output. When the process computer confirms the output of the acceptance signal, that is, the response, it outputs the operation permission signal.

On the other hand, the operator selects the device symbol described above and selects the operating direction with the touch switch,
Turn on the hard pointer switch and input an operation command. As a result, the main steam valve fully closed signal as a hard signal is output. The hard signal and the operation permission signal described above are input to the AND logic 20 of the relay logic.

In addition to these two signals (hardware signal and operation permission signal), a voice interlock permission signal, which will be described later, is input to the AND logic 20, and when both signals are in the ON state, the AND logic 20 operates. Outputs a valid signal. The operation enable signal and the operation direction acceptance signal are input to the AND logic 21, and when both signals are in the ON state, the ON signal is output from the AND logic 21 by the AND logic 2.
2 is output.

In addition to the output signal of the AND logic 22, an interlock signal according to plant parameters is input to the AND logic 22, and when the respective input signals are all turned on, the main steam valve is turned on for the first time. The control output for fully closing is actually output to the main steam valve drive device.

The voice interlock permission signal is output from the AND logic 23. The AND logic 23 is supplied with the result of voice recognition of the uttered voice produced by the cooperation of a plurality of operators described above and the output indicating the driving procedure stored in the database, and as a result, the voice interlock permission signal is output. Is output. FIG. 3 is a block diagram of the logic 23 portion. The arithmetic operation unit 4-B shown in FIG. 1 corresponds to the logical operation processing unit. In this logical operation processing unit,
The voice of the shift supervisor, the voice of the chief, the voice of the operator,
The voice of the on-site operator is input, the voices of the voices and the voice content of each are identified by voice recognition, and it is determined whether or not the voiced sequence is the above-described linkage.

A specific example of the voice interlock will be described below. In nuclear power plants, pointing and calling, response, etc. have been conventionally performed from the viewpoint of preventing erroneous operation.
It is recognized that such a procedure is effective in preventing erroneous operation. In this embodiment, as shown in FIG.
The following interlocks are implemented by logically calculating the voice input from each operator at each operation stage.

(A) A call for an operation start instruction by the shift supervisor is fetched from the voice input device, and it is determined whether the operation is in agreement with the plant state. After that, the subsequent operations are permitted. The operation target device and the operation content are stored in the storage device.

(B) In confirming the parameters of the main control room, the signal names and state values that are sequentially called are fetched from the voice input device, and it is determined whether they are specified values or whether all target signals have been confirmed. . Then, whether or not the following determination (C) performed in parallel is established, and
Permit the subsequent operations with the confirmation person's response.

(C) The site confirmation instruction call to the site operator and the paging call of the confirmation result are fetched from the voice input device, and it is determined whether the target machine, the confirmation content, etc. are appropriate. (D) A call for the operation start instruction of the chief is taken in from the voice input device, it is determined whether the target device and the operation content match the shift length instruction, and if the determination result is affirmative, the subsequent operation is permitted. To do.

(E) The operator's name is fetched from the voice input device, it is judged whether the target machine and the operation contents match the shift length instruction, and when the confirmation person's response is input, The activation permission signal is turned on and transmitted to the system controller.

As shown in the above example, the operator's utterances such as designations (instructions, designations, responses, etc.) that have been conventionally performed are reliably interlocked, and multiple checks by multiple operators and instructions by job system, By incorporating the safety concept of the confirmation system into the control device, it is possible to further improve the operational reliability.

The interlocking of the audio signal in each of the above steps can be applied only to any one of (A) to (E). In addition, at present, the response to the name is uttered by the surrounding operators, and it is not a form of operation in which a confirmer is clearly defined for each name, but this confirmer should be defined and ruled. Is also possible.

FIG. 4 is a diagram showing an example of screen transition on the display device during the above-described voice interlock. For example, when the plant state is a state where the starting condition of the pump A is satisfied, conventionally, the operator is notified that the pump A can be started by a guide or the like by the automation system, and the operator follows the operating procedure. After instructing and confirming according to the procedure defined in the manual, the pump A is actually started. Conventionally, there is no particular change in the automation guide and system diagram displayed on the screen of the display device from the notification to the start of the operation, and the operator himself has to recognize the progress of instructions and confirmations. .

In the present embodiment, first, as shown in screen 2 of FIG. 4, on the system diagram (or automation guide screen) together with the guide display of "pump A start" when the start condition is satisfied,
The identification mark a of the operation start instructor (for example, the shift supervisor) is displayed. When the operation start instructor calls "start operation", the mark a is displayed in different colors, and subsequent instructions and confirmation items are displayed (screen 3). Thereafter, the completed items are displayed in different colors (screen 4) in accordance with the progress of instruction and confirmation. Also, if there is a difference between the operation target device and the designated device,
A guide to that effect is output. As described above, the operator can easily confirm the instructor of the operation and the progress of the instruction and confirmation.

Although the above-described embodiment is applied to the equipment operation in the nuclear power plant, the present invention is not limited to this and can be applied to other control. For example, (1) In the past, on-site confirmation at the time of the surveillance test was paging from the site, and the operator on the main control room side input it with a push button or the like and proceeded with the procedure guide. It can also be applied to a system realized by voice input by a staff member.

(2) It can be applied to a system for recording and storing various kinds of voice inputs such as instructions and confirmations as history data. (3) The present invention can be applied to a system that adds a means for specifying the speaker name of voice information and records the speaker name. (4) It can be applied to a system in which only the designated item is in the confirmed state when an anan occurs. (5) The portable terminal device for on-site patrol is equipped with voice input means to check and monitor the on-site patrol situation.
Applicable to reporting systems.

In applying the above-mentioned embodiment,
By providing a bypass function for various interlock signals and bypassing the corresponding interlock signal when not needed, a timer function is provided for items that are performed in time series such as "name" by the operator and "response" by the confirmer. A function for resetting the permission in the previous stage may be provided when an appropriate time has elapsed before the response.

[0041]

According to the present invention, the linkage of pointing and calling of a plurality of operators is interlocked in time series and the progress of the linkage is displayed on the screen, which increases the burden on the operator. Without this, it is possible to further improve the safety and reliability of the driving operation.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a plant operation monitoring apparatus according to an embodiment of the present invention.

FIG. 2 is a functional configuration diagram of the plant operation monitoring device shown in FIG.

FIG. 3 is a configuration diagram of a voice interlock permission signal generating portion shown in FIG. 2.

FIG. 4 is a diagram showing a transition on a screen of a voice interlock.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Touch-panel, 2 ... CRT display device, 3 ... Voice input device, 4 ... Process computer, 4-A ... Controller, 4
-B ... arithmetic unit, 4-C ... database unit, 4-D ... interface unit, 5 ... controller, 6 ... plant equipment.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display location G10L 9/00 G10L 9/00 G21C 17/00 G21C 17/00 A

Claims (12)

[Claims] 1. An operator gives an operation instruction when operating a plant-constituting device, and an operator who receives the operation instruction gives a pointing call to the name of the device, and there is a voice confirmation response to the pointing call. In a plant operation monitoring method in which an actual operation command of the device is input after that, a series of voices of the operation instruction, the pointing name, and the confirmation response are captured and each speaker is identified by a voice recognition process. The utterance content and the operation target device are identified, and a series of procedures and contents for the operation of the device stored in advance in the database are collated with the utterance order and the identified contents and the operation target device, and if there is a mismatch, A plant operation monitoring method, which blocks the operation command even when the actual operation command is input. 2. An operator gives an operation instruction when operating a plant-constituting device, and an operator who receives the operation instruction gives a pointing call to the name of the device, and there is a voice confirmation response to the pointing call. In a plant operation monitoring method in which an actual operation command of the device is input after that, a series of voices of the operation instruction, the pointing name, and the confirmation response are captured and each speaker is identified by a voice recognition process. The utterance content and the operation target device are identified, and a series of procedures and contents for the operation of the device stored in advance in the database are collated with the utterance order and the identified contents and the operation target device, and if there is a mismatch, A plant operation monitoring method characterized in that, even if the actual operation command is input, the operation command is blocked and the inconsistent guide is displayed on a display device. 3. An operator gives an operation instruction when operating a plant constituent device, and an operator who receives the operation instruction gives a pointing call to the device name, and a voice confirmation response is given to the pointing call. In a plant operation monitoring method in which an actual operation command of the device is input after that, a series of voices of the operation instruction, the pointing name, and the confirmation response are captured and each speaker is identified by a voice recognition process. The utterance content and the operation target device are identified, and a series of procedures and contents for the operation of the device stored in advance in the database are collated with the utterance sequence and the identified contents, and the operation target device, and all of the series of the procedures. A method of monitoring plant operation, characterized in that the input of the actual operation command is permitted when the two match. 4. An operator gives an operation instruction when operating a plant constituent device, and an operator who receives the operation instruction gives a pointing call to the device name, and there is a voice confirmation response to the pointing call. In a plant operation monitoring method in which an actual operation command of the device is input after that, a series of voices of the operation instruction, the pointing name, and the confirmation response are captured and each speaker is identified by a voice recognition process. When the utterance content and the operation target device are identified and a series of procedures and contents for the operation of the device stored in advance in the database are collated with the utterance order and the identified contents and the operation target device, An identification mark indicating a speaker and a collation result based on a voice recognition result of the speaker's utterance are sequentially displayed on the screen of the display device as the series of procedures progresses. Method for monitoring plant operation. 5. An operator gives an operation instruction when operating a plant-constituting device, an operator who receives the operation instruction gives a pointing call to the device name, and there is a voice confirmation response to the pointing call. In a plant operation monitoring method in which an actual operation command of the device is input after that, a series of voices of the operation instruction, the pointing name, and the confirmation response are captured and each speaker is identified by a voice recognition process. The utterance content and the operation target device are identified, and a series of procedures and contents for the operation of the device stored in advance in the database are collated with the utterance order and the identified contents and the operation target device, and if there is a mismatch, Even if the actual operation command is input, the operation command is blocked, and the block based on the matching result for a predetermined voice in the series of procedures is blocked. A plant operation monitoring method characterized by passing. 6. An operator gives an operation instruction when operating a plant-constituting device, an operator who receives the operation instruction points to the name of the device, and there is a voice confirmation response to the pointing call. In a plant operation monitoring method in which an actual operation command of the device is input after that, a series of voices of the operation instruction, the pointing name, and the confirmation response are captured and each speaker is identified by a voice recognition process. The utterance content and the operation target device are identified, and a series of procedures and contents for the operation of the device stored in advance in the database are collated with the utterance sequence and the identified contents and the operation target device, and each of the series of procedures is compared. When the matching results in the steps match, the permission signal is sequentially output for each step, and when the permission signal is output in all steps, the input of the actual operation command is permitted, and A plant operation monitoring method characterized by canceling the permission signal in the previous step when a set time or more elapses before the utterance of the next step after the permission signal in the step is output. 7. An operator gives an operation instruction when operating a plant-constituting device, and an operator who receives the operation instruction gives a pointing call to the name of the device, and there is a voice confirmation response to the pointing call. In a plant operation monitoring device to which an actual operation command of the device is input after that, a voice input unit that captures a series of voices of the operation instruction, the pointing name, and the confirmation response, and a voice captured by the voice input unit. A voice recognition processing means for performing voice recognition processing for each speaker to identify each utterer and each utterance content and operation target device, and a series of procedures and contents for the device operation stored in advance in a database and the utterance. The order, the identified contents, and the collating means for collating the operation target device with the collation result, and when the collation result does not match, even if the actual operation command is input, the operation command is blocked. And a plant operation monitoring device. 8. An operator gives an operation instruction when operating a plant-constituting device, an operator who receives the operation instruction gives a pointing call to the device name, and there is a voice confirmation response to the pointing call. In a plant operation monitoring device to which an actual operation command of the device is input after that, a voice input unit that captures a series of voices of the operation instruction, the pointing name, and the confirmation response, and a voice captured by the voice input unit. A voice recognition processing means for performing voice recognition processing for each speaker to identify each utterer and each utterance content and operation target device, and a series of procedures and contents for the device operation stored in advance in a database and the utterance. If there is a discrepancy in the collation results, the operation command is checked even if the actual operation command is input. A plant operation monitoring device comprising: locking means; and display means for displaying the mismatch guide. 9. An operator gives an operation instruction when operating a plant constituent device, and an operator who receives the operation instruction gives a pointing call to the device name, and a voice confirmation response is given to the pointing call. In a plant operation monitoring device to which an actual operation command of the device is input after that, a voice input unit that captures a series of voices of the operation instruction, the pointing name, and the confirmation response, and a voice captured by the voice input unit. A voice recognition processing means for performing voice recognition processing for each speaker to identify each utterer and each utterance content and operation target device, and a series of procedures and contents for the device operation stored in advance in a database and the utterance. When the matching result for matching the order and the identified contents and the operation target device and the matching result for all of the series of procedures match, the actual operation command is input. A plant operation monitoring apparatus comprising: a permitting unit. 10. An operator gives an operation instruction when operating a plant-constituting device, an operator who receives the operation instruction gives a pointing call to the device name, and there is a voice confirmation response to the pointing call. In a plant operation monitoring device to which an actual operation command of the device is input after that, a voice input unit that captures a series of voices of the operation instruction, the pointing name, and the confirmation response, and a voice captured by the voice input unit. A voice recognition processing means for performing voice recognition processing for each speaker to identify each utterer and each utterance content and operation target device, and a series of procedures and contents for the device operation stored in advance in a database and the utterance. And a collating means for collating the identified contents and the operation target device, an identification mark indicating the next speaker, and a collation result based on a voice recognition result of the speaker. Is provided on the screen of the display device as the progress of the series of procedures is sequentially displayed. 11. An operator gives an operation instruction when operating a plant-constituting device, an operator who receives the operation instruction gives a pointing call to the device name, and there is a voice confirmation response to the pointing call. In a plant operation monitoring device to which an actual operation command of the device is input after that, a voice input unit that captures a series of voices of the operation instruction, the pointing name, and the confirmation response, and a voice captured by the voice input unit. A voice recognition processing means for performing voice recognition processing for each speaker to identify each utterer and each utterance content and operation target device, and a series of procedures and contents for the device operation stored in advance in a database and the utterance. The order and the identified contents, and the collating means for collating the operation target device with the collation result, and when the collation result does not match, even if the actual operation command is input, the operation command is input. A plant operation monitoring device comprising: a blocking unit; and a unit that bypasses the block based on a matching result for a voice designated in advance in the series of procedures. 12. An operator gives an operation instruction when operating a plant-constituting device, an operator who receives the operation instruction gives a pointing call to the device name, and there is a voice confirmation response to the pointing call. In a plant operation monitoring device to which an actual operation command of the device is input after that, a voice input unit that captures a series of voices of the operation instruction, the pointing name, and the confirmation response, and a voice captured by the voice input unit. Voice recognition processing means for performing voice recognition processing for identifying each speaker and identifying each utterance content and operation target device, and a series of procedures and contents for the device operation stored in advance in a database and the order of the utterance. Also, when the collating means for collating the identified content and the operation target device and the collating result in each step of the above-mentioned series of steps are coincident with each other, the permission is sequentially given for each step. A means for permitting the input of the actual operation command when a permission signal is output in all steps, and a set time or more elapses until the vocalization in the next step after the permission signal is output in a certain step. A plant operation monitoring device comprising means for canceling the permission signal in the previous step when it has ended.