CN113903482A - Operation display device for nuclear power station - Google Patents
Operation display device for nuclear power station Download PDFInfo
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- CN113903482A CN113903482A CN202111159901.1A CN202111159901A CN113903482A CN 113903482 A CN113903482 A CN 113903482A CN 202111159901 A CN202111159901 A CN 202111159901A CN 113903482 A CN113903482 A CN 113903482A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/008—Man-machine interface, e.g. control room layout
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/76—Architectures of general purpose stored program computers
- G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit
- G06F15/7807—System on chip, i.e. computer system on a single chip; System in package, i.e. computer system on one or more chips in a single package
- G06F15/7817—Specially adapted for signal processing, e.g. Harvard architectures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- General Engineering & Computer Science (AREA)
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- Theoretical Computer Science (AREA)
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- Computing Systems (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- High Energy & Nuclear Physics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses an operation display device for a nuclear power station, which belongs to the technical field of nuclear power station instrument control, wherein an instrument comprises a display system and an operation system, the display system comprises a main control ARM, a 0-10V remote setting signal unit, a 0-10V measurement signal unit, a 0-10V local setting signal unit, a TFT display screen, a remote/local signal relay logic combination unit, a remote/local setting signal selection unit and a setting value setting unit, the 0-10V remote setting signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information interchange, and the 0-10V measurement signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information interchange. The invention takes the microcomputer as the core of the digital solution, the input and output signals are respectively controlled by the respective microcomputer, and isolated to supply power, and the information exchange is carried out with the main control microcomputer through the optical communication, so as to realize the electrical isolation between the input and output signals and between the main control units.
Description
Technical Field
The invention relates to the technical field of nuclear power station instrument control, in particular to an operation display device for a nuclear power station.
Background
A large number of instruments, electric valves and various remote transmission actuating mechanisms of a nuclear power station are distributed in different places, remote transmission and distributed control is carried out through 4-20mA or 0-10V signals which are commonly used in industry, the nuclear power station built in 80 to 90 years in China, such as the first stage of Qin mountain, mainly takes analog pointer instruments of the countries such as the United states and the like as display operation units, the instruments have the advantages of lagging technology, low display precision, poor human-computer interface and low automation degree, and are in a obsolete state at present; in view of the above circumstances, it is urgently required to develop a novel operation display device.
Disclosure of Invention
1. Technical problem to be solved
The present invention is directed to an operation display device for a nuclear power plant to solve the problems of the background art.
2. Technical scheme
In order to solve the problems, the invention adopts the following technical scheme:
an operation display device for a nuclear power station comprises an instrument, wherein the instrument comprises a display system and an operating system, and is characterized in that the display system comprises a main control ARM, a 0-10V remote setting signal unit, a 0-10V measurement signal unit, a 0-10V local setting signal unit, a TFT display screen, a remote/local signal relay logic combination unit, a remote/local setting signal selection unit and a setting value setting unit, wherein the 0-10V remote setting signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information interchange, the 0-10V measurement signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information interchange, the 0-10V local setting signal unit is electrically connected with the main control ARM and realizes transmission of control signals, and the remote/local signal relay logic combination unit, the remote/local setting signal selection unit and the setting value setting unit are respectively electrically connected with a main control ARM, and the main control ARM receives signals of the setting value setting unit, the remote/local setting signal selection unit, the 0-10V remote setting signal unit, the 0-10V measurement signal unit and the 0-10V local setting signal unit and displays information on a TFT display screen through operation and control logic;
the 0-10V remote setting signal unit and the 0-10V measurement signal unit realize the electrical isolation of the self unit and other units in the modes of isolated power supply and optical couple isolated communication.
Furthermore, the operating system comprises a 0-10V input signal unit, an operating switch and an automatic/manual driving relay logic combination unit, the main control ARM is electrically connected with the 0-10V input signal unit through light isolation communication and realizes information exchange, the main control ARM completes signal acquisition, operation and control operations through the 0-10V input signal unit, the operating switch and the automatic/manual driving relay logic combination unit, operation information and an operation state are displayed on a TFT display screen through the main control ARM, and the 0-10V input signal unit realizes the electrical isolation of the unit and other units through the modes of isolating power supply and optical coupling isolation communication.
Furthermore, the 0-10V input signal unit is used for carrying out analog-to-digital conversion, digital calibration, filtering and conversion on the input 0-10V signal by an independent microcomputer, an ADC (analog-to-digital converter) and an operational amplifier to obtain a digital quantity of 0-1000, and information exchange is completed with the main control unit through TTL (transistor-transistor logic) serial port optical couple isolation.
Furthermore, the 0-10V remote setting signal unit is composed of an independent microcomputer, an ADC (analog-to-digital converter) and an operational amplifier, wherein the operational amplifier performs analog-to-digital conversion, digital calibration, filtering, conversion and calculation on an input 0-10V signal to obtain a 0-1000 digital quantity, and completes information exchange with a main control ARM through TTL (transistor-transistor-transistor logic) serial port optical couple isolation.
Furthermore, the 0-10V measurement signal unit is composed of an independent microcomputer, an ADC (analog-to-digital converter) and an operational amplifier, and performs analog-to-digital conversion, digital calibration, filtering, conversion and calculation on the input 0-10V signal to obtain a digital quantity of 0-1000, and completes information exchange with the main control ARM through TTL (transistor-transistor-transistor logic) serial port optical couple isolation.
Furthermore, the 0-10V local setting signal unit is converted by the main control ARM through DAC digital-to-analog conversion according to the control logic, and the operational amplifier converts the digital quantity of 0-1000 into a control signal of 0-10V.
Further, the information displayed on the TFT display screen is at least one of a number, a graph, a curve, an animation and a state diagram.
Furthermore, a communication interface is arranged on the instrument.
3. Advantageous effects
1. The invention takes a microcomputer as a core digital solution, controls input and output signals by respective microcomputers respectively, supplies power in an isolated manner, exchanges information with a main control microcomputer through optical communication to realize electrical isolation among the input and output signals and among main control units, so that the input and output signals and the main control unit become an electrically isolated and independent non-grounded safety system to prevent indirect electric shock danger under the condition that a bare conductor is in fault and electrified;
2. according to the invention, an operator can view information and control equipment through the TFT human-computer interface and the control buttons, so that the instrument display device is more intelligent, convenience is provided for the operation of workers, and in addition, the TFT type display has the advantages of high responsiveness, high brightness, high contrast and the like, so that the display precision of the instrument display device is improved.
3. The instrument of the invention is also provided with redundant communication interfaces, and can provide conditions for later system upgrading through the communication interfaces, namely the instrument display device can support automatic networking.
Drawings
FIG. 1 is a schematic block diagram of a display of the present invention;
fig. 2 is a functional block diagram of the operator of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Examples
An operation display device for a nuclear power station comprises an instrument, wherein a communication interface is arranged on the instrument, and conditions can be provided for later system upgrading through the communication interface, namely the instrument display device can support automatic networking;
as shown in fig. 1, the meter comprises a display system and an operating system, the display system comprises a main control ARM, a 0-10V remote setting signal unit, a 0-10V measurement signal unit, a 0-10V local setting signal unit, a TFT display screen, a remote/local signal relay logic combination unit, a remote/local setting signal selection unit and a setting value setting unit, the 0-10V remote setting signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information interchange, the 0-10V remote setting signal unit is composed of an independent microcomputer (single chip microcomputer), an ADC analog-to-digital converter and an operational amplifier, and performs analog-to-digital conversion, digital calibration, filtering and conversion on an input 0-10V signal to obtain a digital quantity of 0-1000, and completes information interchange with the main control ARM through optical coupling isolation of a TTL serial port, the 0-10V remote setting signal unit realizes the electrical isolation of the unit and other units through the modes of isolated power supply and optical couple isolated communication, the 0-10V measurement signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information interchange, the 0-10V measurement signal unit is composed of an independent microcomputer (single chip microcomputer), an ADC (analog-to-digital converter) and an operational amplifier, the operational amplifier carries out analog-to-digital conversion, digital calibration, filtering, conversion and calculation on the input 0-10V signal into a digital quantity of 0-1000, and completes information interchange with the main control ARM through TTL (transistor-transistor logic) serial port optical couple isolation, the 0-10V measurement signal unit realizes the electrical isolation of the unit and other units through the modes of isolated power supply and optical couple isolated communication, the 0-10V local setting signal unit is electrically connected with the main control ARM and realizes the transmission of control signals, the 0-10V local setting signal unit is directly converted by the main control ARM through DAC digital-to-analog conversion according to the control logic, the operational amplifier converts 0-1000 digital quantity or proportional digital quantity into a 0-10V control signal, the remote/local signal relay logic combination unit, the remote/local setting signal selection unit and the setting value setting unit are respectively and electrically connected with the main control ARM, the main control ARM receives signals of a set value setting unit, a remote/local setting signal selection unit, a 0-10V remote setting signal unit, a 0-10V measurement signal unit and a 0-10V local setting signal unit and displays information on a TFT display screen through operation and control logic, the information displayed on the TFT display screen is any one of numbers, graphs, curves, animations and state diagrams;
as shown in fig. 2, the operating system includes a 0-10V input signal unit, an operating switch and an automatic/manual driving relay logic combination unit, the main control ARM is electrically connected with the 0-10V input signal unit through optical isolation communication to realize information exchange, the 0-10V input signal unit is composed of an independent microcomputer (single chip), an ADC analog-to-digital converter, an operational amplifier for performing analog-to-digital conversion, digital calibration, filtering, conversion on the input 0-10V signal to obtain a digital quantity of 0-1000, and completing information exchange with the main control unit through TTL serial port optical pair isolation, the 0-10V input signal unit realizes electrical isolation of the unit from other units through isolation power supply and optical pair isolation communication, and the main control ARM realizes electrical isolation of the unit from other units through the 0-10V input signal unit, the operating switch and the operating switch, The automatic/manual driving relay logic combination unit finishes operations such as signal acquisition, operation, control and the like, operation information and an operation state are displayed on a TFT display screen through a main control ARM, and the information displayed on the TFT display screen is any one of numbers, graphs, curves, animations and state diagrams.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (8)
1. An operation display device for a nuclear power station comprises an instrument, wherein the instrument comprises a display system and an operating system, and is characterized in that the display system comprises a main control ARM, a 0-10V remote setting signal unit, a 0-10V measurement signal unit, a 0-10V local setting signal unit, a TFT display screen, a remote/local signal relay logic combination unit, a remote/local setting signal selection unit and a setting value setting unit, wherein the 0-10V remote setting signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information interchange, the 0-10V measurement signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information interchange, the 0-10V local setting signal unit is electrically connected with the main control ARM and realizes transmission of control signals, and the remote/local signal relay logic combination unit, the remote/local setting signal selection unit and the setting value setting unit are respectively electrically connected with a main control ARM, and the main control ARM receives signals of the setting value setting unit, the remote/local setting signal selection unit, the 0-10V remote setting signal unit, the 0-10V measurement signal unit and the 0-10V local setting signal unit and displays information on a TFT display screen through operation and control logic;
the 0-10V remote setting signal unit and the 0-10V measurement signal unit realize the electrical isolation of the self unit and other units in the modes of isolated power supply and optical couple isolated communication.
2. The operation display device of claim 1, wherein the operation system comprises a 0-10V input signal unit, an operation switch and an automatic/manual driving relay logic combination unit, the main control ARM is electrically connected with the 0-10V input signal unit through optical isolation communication and realizes information exchange, the main control ARM completes signal acquisition, operation and control operations through the 0-10V input signal unit, the operation switch and the automatic/manual driving relay logic combination unit, operation information and operation states are displayed on the TFT display screen through the main control ARM, and the 0-10V input signal unit realizes electrical isolation of the unit from other units through isolation power supply and optical coupling isolation communication.
3. The operation display device of claim 2, wherein the 0-10V input signal unit is configured to perform analog-to-digital conversion, digital calibration, filtering, and conversion on the input 0-10V signal by using a microcomputer, an ADC/a converter, and an operational amplifier, to obtain a digital quantity of 0-1000, and to perform information exchange with the main control unit through TTL serial port optical pair isolation.
4. The operation display device of claim 1, wherein the 0-10V remote setting signal unit is formed by an independent microcomputer, an ADC/a converter, and an operational amplifier, and performs a digital-to-analog conversion, a digital calibration, a filtering, a conversion, and an operation on the input 0-10V signal to obtain a digital quantity of 0-1000, and performs a message exchange with the main control ARM through TTL serial port optical pair isolation.
5. The operation display device of claim 1, wherein the 0-10V measurement signal unit is formed by an independent microcomputer, an ADC/ADC converter, and an operational amplifier, and performs analog-to-digital conversion, digital calibration, filtering, conversion and calculation on the input 0-10V signal to obtain a digital quantity of 0-1000, and performs information exchange with the main control ARM through TTL serial port optical pair isolation.
6. The operation display device of claim 1, wherein the 0-10V local setting signal unit is implemented by the main control ARM according to the control logic, and the operational amplifier converts the digital quantity of 0-1000 into the control signal of 0-10V through DAC digital-to-analog conversion.
7. The operation display device for nuclear power plant as claimed in claim 1, wherein the information displayed on the TFT display screen is at least one of a number, a graph, a curve, an animation, and a state diagram.
8. The operation display device for the nuclear power plant as claimed in claim 1, wherein the meter is provided with a communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159901.1A CN113903482B (en) | 2021-09-30 | 2021-09-30 | Operation display device for nuclear power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159901.1A CN113903482B (en) | 2021-09-30 | 2021-09-30 | Operation display device for nuclear power station |
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| CN113903482A true CN113903482A (en) | 2022-01-07 |
| CN113903482B CN113903482B (en) | 2023-10-13 |
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2021
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