CN113903482B - Operation display device for nuclear power station - Google Patents
Operation display device for nuclear power station Download PDFInfo
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- CN113903482B CN113903482B CN202111159901.1A CN202111159901A CN113903482B CN 113903482 B CN113903482 B CN 113903482B CN 202111159901 A CN202111159901 A CN 202111159901A CN 113903482 B CN113903482 B CN 113903482B
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- unit
- main control
- signal unit
- remote
- setting signal
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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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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- 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 the 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 measuring 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 set 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 exchange, and the 0-10V measuring signal unit is electrically connected with the main control ARM through optical isolation communication and realizes information exchange. The invention takes microcomputer as the core digital solution, the input and output signals are controlled by the respective microcomputer, and the power supply is isolated, and the information exchange is carried out with the main control microcomputer through 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 instrument control of nuclear power stations, in particular to an operation display device for a nuclear power station.
Background
The nuclear power station is characterized in that a large number of meters, electric valves and various remote transmission execution mechanisms are distributed in different places, remote transmission and distributed control are carried out through 4-20mA or 0-10V signals commonly used in industry, a nuclear power station built from 80 to 90 years in China, such as Qinshan first period, mainly uses analog pointer meters in the countries such as the United states as a display operation unit, and the technology of the meters is behind, the display precision is low, the man-machine interface is poor, the degree of automation is low, and the current state is eliminated; development of a novel operation display device is urgently required for the above situations
For this reason, we propose an operation display device for nuclear power station to solve the above-mentioned problems.
Disclosure of Invention
1. Technical problem to be solved
The present invention is directed to an operation display device for a nuclear power plant, which solves the problems set forth in the background art.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme:
the operation display device for the 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 measuring 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 set value given unit, wherein the 0-10V remote setting signal unit is electrically connected with the main control ARM through optical communication and realizes information interchange, the 0-10V measuring signal unit is electrically connected with the main control ARM through optical communication and realizes information interchange, the 0-10V local setting signal unit is electrically connected with the main control ARM and realizes control signal transmission, the TFT/local signal relay logic combination unit, the remote/local setting signal selection unit and the set value given unit are respectively electrically connected with the main control ARM, and the main control ARM receives the set value given unit, the remote/local setting signal selection unit, the 0-10V remote setting signal unit, the 0-10V measuring signal unit and the 0-10V local setting signal unit are respectively displayed on the display screen through operation logic signals;
the 0-10V remote setting signal unit and the 0-10V measuring signal unit realize the electrical isolation between the unit and other units in an isolated power supply and optical coupling isolated communication mode.
Further, the operating 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 a TFT display screen through the main control ARM, and the 0-10V input signal unit realizes electric isolation between the main control ARM and other units through isolation power supply and optical coupling isolation communication modes.
Furthermore, the 0-10V input signal unit is formed by performing analog-to-digital conversion, digital calibration, filtering, conversion and operation 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 the information exchange is completed with the main control unit through the optocoupler isolation of a TTL (transistor-transistor logic) serial port.
Further, the 0-10V remote setting signal unit is formed by performing analog-to-digital conversion, digital calibration, filtering, conversion and operation 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 finishing information exchange with the main control ARM by means of TTL (transistor-transistor logic) serial port optocoupler isolation.
Further, the 0-10V measuring signal unit is formed by performing analog-to-digital conversion, digital calibration, filtering, conversion and operation 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 the information exchange is completed with the main control ARM through the optocoupler isolation of a TTL (transistor-transistor logic) serial port.
Further, the 0-10V local setting signal unit converts the digital quantity of 0-1000 into a control signal of 0-10V by the main control ARM through DAC digital-to-analog conversion and operational amplification according to the control logic.
Further, the information displayed on the TFT display screen is at least one of numbers, charts, curves, animations, and state diagrams.
Further, a communication interface is arranged on the instrument.
3. Advantageous effects
1. The invention takes microcomputer as the core digital solution, the input and output signals are respectively controlled by the respective microcomputer, and the power supply is isolated, and the information exchange is carried out between the input and output signals and the main control microcomputer through optical communication, so as to realize the electrical isolation between the input and output signals and the main control unit, and the input and output signals are made into an electrically isolated and independent non-grounding safety system, so that the risk of indirect electric shock is prevented under the condition of the fault electrification of the exposed conductor;
2. according to the invention, an operator can realize information checking and equipment control 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 staff, and in addition, the TFT display has the advantages of high responsiveness, high brightness, high contrast and the like, and the display precision of the instrument display device is improved.
3. The instrument of the invention is also designed with redundant communication interfaces, and conditions can be provided for subsequent system upgrade 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 an operator of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples.
Examples
The operation display device for the nuclear power station comprises an instrument, wherein a communication interface is arranged on the instrument, and conditions can be provided for subsequent system upgrading through the communication interface, namely, the instrument display device can support automatic networking;
as shown in fig. 1, the instrument comprises a display system and an operating system, the display system comprises a master ARM, a 0-10V remote setting signal unit, a 0-10V measuring 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 set value setting unit, wherein the 0-10V remote setting signal unit is electrically connected with the master ARM through optical isolation communication and realizes information interchange, the 0-10V remote setting signal unit is formed by an independent microcomputer (single chip microcomputer), an ADC analog-to-digital converter and an operational amplifier, the input 0-10V signal is subjected to analog-digital conversion, digital calibration, filtering, conversion and operation into a digital quantity of 0-1000, the 0-10V remote setting signal unit realizes the electrical isolation of the master ARM through an isolated power supply and an optical coupling isolation communication mode, the 0-10V remote setting signal unit is electrically connected with the master ARM through optical isolation communication and realizes the information interchange mode, the 0-10V remote setting signal unit is electrically connected with the master ARM through the independent microcomputer (single chip microcomputer), the ADC and the operational amplifier and the input 0-10V remote setting signal unit is electrically connected with the master ARM through an optical coupling isolation communication mode, the input 0-10V measuring signal conversion unit is electrically connected with the input 0-10V measuring signal unit through the digital calibration and the digital calibration, the digital calibration and the digital conversion and the optical coupling operation is completed with the digital signal conversion unit, the remote/local signal relay logic combination unit is electrically connected with the remote/local setting signal selection unit and the set value setting unit respectively, and the master ARM receives signals of the set value setting unit, the remote/local setting signal selection unit, the 0-10V remote setting signal unit, the 0-10V measuring signal unit and the 0-10V local setting signal unit and displays information on a TFT display screen through operation and control logic, wherein the information displayed on the TFT display screen is any one of numbers, charts, curves and animations;
as shown in fig. 2, the operating system includes 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 implements information exchange, the 0-10V input signal unit is formed by an independent microcomputer (single chip microcomputer), an ADC analog-digital converter and an operational amplifier, the input 0-10V signal is subjected to analog-digital conversion, digital calibration, filtering, conversion and operation into a digital quantity of 0-1000, and the information exchange is completed with the main control unit through TTL serial port optocoupler isolation, the 0-10V input signal unit implements electrical isolation between the main control ARM and other units through isolation power supply and optocoupler isolation communication, the main control ARM implements operations such as signal acquisition, operation and control through the 0-10V input signal unit, the operation switch, the automatic/manual driving relay logic combination unit, and the operation information and the operation state are displayed on a TFT display screen through the main control ARM, and the information displayed on the TFT display screen is any one of figures, graphs, curves and animation and state diagrams.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments will fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (8)
1. The operation display device for the 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 measuring 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 set value given unit, wherein the 0-10V remote setting signal unit is electrically connected with the main control ARM through optical communication and realizes information interchange, the 0-10V measuring signal unit is electrically connected with the main control ARM through optical communication and realizes information interchange, the 0-10V local setting signal unit is electrically connected with the main control ARM and realizes control signal transmission, the TFT/local signal relay logic combination unit, the remote/local setting signal selection unit and the set value given unit are respectively electrically connected with the main control ARM, and the main control ARM receives the set value given unit, the remote/local setting signal selection unit, the 0-10V remote setting signal unit, the 0-10V measuring signal unit and the 0-10V local setting signal unit are respectively displayed on the display screen through operation logic signals;
the 0-10V remote setting signal unit and the 0-10V measuring signal unit realize the electrical isolation between the unit and other units in an isolated power supply and optical coupling isolated communication mode.
2. The operation display device for the nuclear power station according to 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 a TFT display screen through the main control ARM, and the 0-10V input signal unit realizes electric isolation of the unit from other units through isolation power supply and optical coupling isolation communication.
3. The operation display device for nuclear power plant according to claim 2, wherein the 0-10V input signal unit is composed of an independent microcomputer, an ADC analog-digital converter and an operational amplifier, performs analog-digital conversion, digital calibration, filtering, conversion and operation on the input 0-10V signal to obtain a digital quantity of 0-1000, and performs information exchange with the main control unit through TTL serial port optocoupler isolation.
4. The operation display device for nuclear power station according to claim 1, wherein the 0-10V remote setting signal unit is formed by performing analog-digital conversion, digital calibration, filtering, conversion and operation on the input 0-10V signal into a digital quantity of 0-1000 by an independent microcomputer, an ADC analog-digital converter and an operational amplifier, and performing information exchange with the master ARM through TTL serial port optocoupler isolation.
5. The operation display device for nuclear power station according to claim 1, wherein the 0-10V measurement signal unit is composed of an independent microcomputer, an ADC analog-digital converter and an operational amplifier, performs analog-digital conversion, digital calibration, filtering, conversion and operation on the input 0-10V signal to obtain a digital quantity of 0-1000, and performs information exchange with the master ARM through TTL serial port optocoupler isolation.
6. The operation display device for nuclear power plant according to claim 1, wherein the 0-10V local setting signal unit converts digital quantity of 0-1000 into control signal of 0-10V by the main control ARM according to the control logic through DAC digital-analog conversion and operational amplification.
7. The operation display device for nuclear power plant according to claim 1, wherein the information displayed on the TFT display screen is at least one of a number, a chart, a curve, an animation, and a state diagram.
8. An operation display device for nuclear power plant according to claim 1, wherein the instrument 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 CN113903482A (en) | 2022-01-07 |
| CN113903482B true CN113903482B (en) | 2023-10-13 |
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