JPH10326112A - Plant operation controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plant operation controller that decreases the amount of input facilities, reduces the burden of the plant operation work, shortens the plant operation time, and improves the safety. SOLUTION: This controller is provided with the independent signal processors 17, 18 and 19, which input the operation signals received from a touch panel 4 of a display part 1 showing the plant information via a screen control computer 10, the hard switches 7, 8 and 9 which are connected to the processors 17, 18 and 19 respectively and electrically and physically independent of each other, and the controllers 20, 21 and 22, which are connected to the processors 17, 18 and 19 respectively via each signal line and control the plant devices. When the signals received from the panel 4 and the signals received from the switches 7 to 9 are inputted to the processors 17 to 19, the processors 17 to 19 transmit the operation signals to the controllers 20 to 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant operation control device applied to an operation monitoring and operation equipment for handling equipment having a safety function of a nuclear power plant.

[0002]

2. Description of the Related Art It is necessary to take care not to lose the safety protection function of a safety-related facility of a nuclear power plant during normal operation, repair, test, abnormality and failure. Therefore, in order to achieve a design that separates the channels that make up the system from each other and separates from the service equipment, the operation and operation equipment is independently arranged or a modular operation equipment with proven separation is used. . Therefore, even when a computer facility using a screen touch operation is used as an operation device, a design is provided for each safety system channel and each of the service systems.

FIG. 2 is a diagram showing a configuration of a conventional plant operation control device, and shows an example in which three independent devices for operation monitoring are provided. In FIG. 2, each operation signal from the touch panels 4, 5, and 6 provided on the display units 1, 2, and 3 displaying plant monitoring information and displaying the operation unit is a screen display and a touch panel signal, respectively. The data is independently transmitted to the signal processing devices 17, 18, and 19 via the screen control computers 10, 11, and 12 to be processed.

Further, the respective signals processed by the signal processing devices 17, 18, 19 are finally inputted to independent control devices 20, 21, 22 for each section, respectively. Pumps, valves,
Equipment such as a motor is controlled.

[0005]

Conventionally, a plurality (2 to 2)
It was necessary to provide an operation screen for each of the safety system channel and the service system of 4). For this reason, when the operator attempts to perform some kind of driving operation, it is necessary to determine which channel of the safety system or the service system the target operating tool belongs to. In addition, the physical quantity of the screen touch input device for the driving operation in this case also increases.

On the other hand, when a design is made such that a plurality of safety-related channels and service systems can be operated on one operation screen, the safety-related facilities of the relevant channel can be used in the event of an abnormality or failure of the operating equipment. The design is unacceptable because of the risk of losing the safety protection function of the device. An object of the present invention is to provide a plant operation control device that reduces the amount of input equipment, reduces the load on the operation work, shortens the operation time, and improves safety.

[0007]

Means for Solving the Problems To solve the above problems and achieve the object, a plant operation control device of the present invention is configured as follows. The plant operation control device according to the present invention includes a plurality of independent signal processing devices that input operation signals input from a touch panel on a display unit on which plant information is displayed via a screen control computer, and the plurality of signals. A plurality of hard switches that are individually connected to the processing devices, each of which is electrically and physically separated and independent, and a control device that is connected to each of the signal processing devices via a signal line and controls plant equipment, When both a signal from the touch panel and a signal from the hard switch are input, an operation signal is transmitted from the signal processing device to which the both signals are input to the control device.

[0008]

FIG. 1 is a diagram showing a configuration of a plant operation control device according to an embodiment of the present invention. In FIG. 1, the same parts as those in FIG. 2 are denoted by the same reference numerals. The following two are considered as operation operation ranges when the plant operation control device is applied. One is that the operation input equipment for each channel of the safety equipment is integrated in combination with the hardware switch of this device, and the operation input equipment of the service equipment is provided independently. The other is to integrate all safety-related channels and service-related channels. Hereinafter, a case in which all the channels of the safety system and all the normal systems are integrated will be described.

In FIG. 1, a display unit 1 having a touch panel 4 is connected to a screen control computer 10, and the screen control computer 10 is connected to signal processing devices 17, 18, and 19. The signal processing devices 17, 18, and 19 are connected to the plant 30 via the control devices 20, 21, and 22, respectively.
It is connected to the. Also, the hard switches 7, 8, 9
Are connected to the signal processing devices 17, 18, and 19, respectively.

An operation signal from the touch panel 4 on the display unit 1 on which the plant information is displayed is transmitted to the screen control computer 10.
Are transmitted to independent signal processing devices 17, 18, and 19. Hard switch 7 separately designed,
Unless the signals 14, 15, 16 from 8, 9 are received, logic which does not operate any of the signal processing devices 17, 18, 19 is built in the signal processing devices 17, 18, 19.

Thus, even if the signal 13 is generated in a state where a failure has occurred in one of the display unit 1, the touch panel 4, and the screen control computer 10, the signal processing units 17 and 18 are affected. , 19, only one of which has a switch input (corresponding hard switches 7, 8, 9 are ON). Therefore, since only one section of the independently installed control devices 20, 21, 22 is affected, the effect on the plant 30 is finally limited to one section of the pump, valve, and motor. Therefore, even if a failure occurs in one of the display unit 1, the touch panel 4, and the screen control computer 10, safety protection is maintained.

The plant operation control apparatus according to the present embodiment is configured to separate a plurality of electrically / physically separated operation operation signals, which must be functionally separated according to their functional divisions, in accordance with plant safety requirements. Switches 7, 8, 9
By combining the input and the computer equipment (10) for screen touch operation or the like, it is possible to operate and operate a plurality of sections from one computer equipment (10).
That is, the computer equipment (1) that receives the screen touch input
In addition to 0), hard switches 7, 8, and 9 are provided for each channel of the safety system and for the normal system.

The computer equipment (10) for controlling the screen touch input is a signal processing equipment (multiplexer) (1) provided independently for each channel of the safety system and independently for the service system.
7, 18, 19), and communicates input signals. On the other hand, each of the hard switches 7, 8, and 9 is electrically and physically separated, and inputs one point to independent signal processing equipment (17, 18, 19).

In the signal processing equipment (17, 18, 19), only when both the screen touch signal from the computer 10 and the signals of the hard switches 7, 8, 9 are inputted, the operation signals are sent to the control devices 20, 21. , 22 are designed to satisfy functional separation.

As described above, the hard switch input signal is designed to be electrically and physically separated so that the operation signal of the safety system equipment is output by a combination of the signal from the computer equipment and the input of the hard switch. By doing so, it is possible to perform an operation from a single computer input to a plurality of safety channels.

By applying the plant operation control device, the operator does not need to move the screen input place according to the operation target from the operation operation side, so that the work load is reduced and urgent operation is required. In this case, the operation time can be reduced. Also, in terms of equipment quantity, for example, safety
In the case of a channel configuration, which is integrated with a normal system, at least two sets of screen touch input devices to be installed for driving operation are required in consideration of multiplexing. On the other hand, when the screen touch input device is installed for each channel as in the related art, six sets are required if each device is multiplexed. As described above, the present apparatus brings about a large quantity reduction effect.

The present invention is not limited to the above-described embodiment, but can be implemented with appropriate modifications without departing from the scope of the invention. (Summary of Embodiment) The configuration, operation and effect shown in the embodiment are summarized as follows.

The plant operation control apparatus shown in the embodiment converts an operation signal input from the touch panel 4 on the display unit 1 on which plant information is displayed to a screen control computer 10.
A plurality of independent signal processing devices 1 input via the
7, 18, 19 and the plurality of signal processing devices 17, 1
A plurality of hard switches 7, 8, 9 which are individually connected to each other and are electrically and physically separated from each other, and are connected to the respective signal processing devices 17, 18, 19 via signal lines,
Control devices 20, 21, 22 for controlling plant equipment;
When both the signal from the touch panel 4 and the signal from the hard switches 7, 8, 9 are input, the signal processing devices 17, 1 to which both of these signals are input are provided.
Operation signals from the control devices 20, 21, 22
Transmit to

Therefore, in the plant operation control device, the physical quantity of the input equipment can be reduced, and the operator does not need to move the screen input location according to the operation target.
Work load can be reduced and operation time can be reduced. In addition, by using a single touch panel, it is designed to be operable including multiple safety-related channels and regular systems, so that in the event of an abnormality or failure of the operation equipment, the safety protection function of the safety-related equipment of the relevant channel Is kept.

[0020]

According to the plant operation control apparatus of the present invention, the quantity of input equipment can be reduced, and the operator does not need to move the screen input place according to the operation target, so that the work load is reduced and the operation time is reduced. Can be shortened. In addition, by using a single touch panel, it is designed to be operable including multiple safety-related channels and regular systems, so that in the event of an abnormality or failure of the operation equipment, the safety protection function of the safety-related equipment of the relevant channel Is kept.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a plant operation control device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a plant operation control device according to a conventional example.

[Explanation of symbols]

 1, 2, 3 ... VDU display section 4, 5, 6 ... touch panel input section 7, 8, 9 ... hard switch 10, 11, 12 ... screen control computer 13 ... touch operation signal input signal 14, 15, 16 ... signal 17, 18, 19 ... signal processing device 20, 21, 22 ... control device 30 ... plant

Claims (1)

[Claims] 1. A plurality of independent signal processing devices for inputting an operation signal input from a touch panel on a display unit on which plant information is displayed via a screen control computer; A plurality of hard switches that are connected, each of which is electrically and physically separated and independent, and a control device that is connected via a signal line to each of the signal processing devices and controls a plant device. A plant operation control device, wherein when both a signal and a signal are input from the hard switch, an operation signal is transmitted from the signal processing device to which the both signals are input to the control device.