CN107272515B - Information uploading method, information issuing method and communication method for nuclear power plant - Google Patents

Information uploading method, information issuing method and communication method for nuclear power plant Download PDF

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Publication number
CN107272515B
CN107272515B CN201710645962.6A CN201710645962A CN107272515B CN 107272515 B CN107272515 B CN 107272515B CN 201710645962 A CN201710645962 A CN 201710645962A CN 107272515 B CN107272515 B CN 107272515B
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China
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communication module
information
module
plm
modules
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CN201710645962.6A
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CN107272515A (en
Inventor
汪于迪
肖鹏
刘明明
周继翔
王远兵
吴志强
马权
彭浩
公民
刘明星
韩文兴
刘宏春
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CHINA NUCLEAR CONTROL SYSTEM ENGINEERING Co.,Ltd.
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Nuclear Power Institute of China
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/25—Pc structure of the system
    • G05B2219/25257—Microcontroller

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Multi Processors (AREA)
  • Programmable Controllers (AREA)

Abstract

The invention discloses an information uploading method, an information issuing method and a communication method for a nuclear power plant. The information uploading method comprises the following steps: each slave communication module collects the uploading information of each PLM module in the local box and sends the uploading information to the master communication module; the main communication module collects the uploading information of each PLM module in the local box and sends the collected uploading information and the uploading information collected by each slave communication module to the CPU module. The information issuing method comprises the following steps: the CPU module sends the issued information to the main communication module; the main communication module sends the issued information to each PLM module and each slave communication module in the local box; and each slave communication module sends the issued information to each PLM module in the local box. The information uploading method, the information issuing method and the communication method for the nuclear power plant can reduce ports and cables and reduce the field wiring complexity.

Description

Information uploading method, information issuing method and communication method for nuclear power plant
Technical Field
The invention relates to the technical field of nuclear power instrument control, in particular to an information uploading method, an information issuing method and a communication method for a nuclear power plant.
Background
With the continuous development of social economy, the power demand is increasingly improved, and nuclear power is widely concerned by people due to high efficiency, cleanness and economy. In a nuclear power plant operating System, a Distributed Control System (DCS) is a control part of the entire operating System, performance of the DCS directly relates to operating efficiency of the nuclear power plant, and stability and fault tolerance of the DCS directly relate to safety of the nuclear power plant.
The distributed control system in the nuclear power station operation system comprises a control cabinet and an expansion cabinet, wherein the control cabinet comprises a CPU Module, the expansion cabinet comprises a plurality of I/O (input/output) cases, each I/O case comprises a plurality of Priority Logic Modules (PLMs), and each PLM Module is communicated with the CPU Module in a hard-wired mode. The existing communication mode needs more ports and cables, and field wiring is also complicated.
Disclosure of Invention
The invention aims to solve the problems that a distributed control system communication mode in a nuclear power station operation system needs more ports and cables and is complex in field wiring.
The invention is realized by the following technical scheme:
an information uploading method for a nuclear power plant is applied between an expansion cabinet and a control cabinet, wherein the expansion cabinet comprises a main I/O cabinet and at least one auxiliary I/O cabinet, and the control cabinet comprises at least one CPU module; the main I/O chassis comprises at least one main communication module and at least two PLM modules, wherein all the PLM modules are connected with one of the main communication modules, and all the main communication modules are sequentially connected; the slave I/O chassis comprises a slave communication module and at least two PLM modules, wherein all the PLM modules are connected with the slave communication module, and each slave communication module is connected with a master communication module; the information uploading method comprises the following steps: each slave communication module collects the uploading information of each PLM module in the local box and sends the uploading information to the master communication module; the main communication module collects the uploading information of each PLM module in the local box and sends the collected uploading information and the uploading information collected by each slave communication module to the CPU module.
An information issuing method for a nuclear power plant is applied between an expansion cabinet and a control cabinet, wherein the expansion cabinet comprises a main I/O cabinet and at least one slave I/O cabinet, and the control cabinet comprises at least one CPU module; the main I/O chassis comprises at least one main communication module and at least two PLM modules, wherein all the PLM modules are connected with one of the main communication modules, and all the main communication modules are sequentially connected; the slave I/O chassis comprises a slave communication module and at least two PLM modules, wherein all the PLM modules are connected with the slave communication module, and each slave communication module is connected with a master communication module; the information issuing method comprises the following steps: the CPU module sends the issued information to the main communication module; the main communication module sends the issued information to each PLM module and each slave communication module in the local box; and each slave communication module sends the issued information to each PLM module in the local box.
A communication method for a nuclear power plant comprises the information uploading method and the information issuing method.
According to the communication method provided by the invention, the slave communication module arranged in each slave I/O case is responsible for uploading and issuing the information of the PLM module in the local case, the slave communication module is communicated with the master communication module in the master I/O case, and then the master communication module is communicated with the CPU module in a unified way, so that the I/O bus communication is avoided, ports and cables are reduced, and the field wiring complexity is reduced.
Optionally, in the primary I/O chassis, all PLM modules are connected to one of the primary communication modules through an I2C bus.
Optionally, in the main I/O chassis, all PLM modules are connected to one of the main communication modules through an SPI bus.
Optionally, in the slave I/O chassis, all PLM modules are connected to the slave communication module through an I2C bus or an SPI bus.
Optionally, each slave communication module is connected to one master communication module by an optical fiber. The complexity of field wiring is further reduced by connecting the slave communication module and the master communication module by optical fibers.
Optionally, the connection between each slave communication module and one master communication module is redundant. The main communication module and the slave communication module are connected in a redundant mode, and when one communication link fails, the other communication link works, so that the reliability of the system is improved.
Optionally, one main communication module in each main I/O chassis is connected to one CPU module by an optical fiber. And the main communication module and the CPU module are connected through optical fibers, so that the complexity of field wiring is further reduced.
Optionally, the connection between one primary communication module and one CPU module in each primary I/O chassis is redundant. The main communication module and the CPU module are connected in a redundant mode, when one communication link fails, the other communication link works, and reliability of the system is improved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the information uploading method, the information issuing method and the communication method for the nuclear power plant, the communication module is arranged in each I/O case of the expansion cabinet, so that layered communication of the expansion cabinet is achieved, namely the main communication module in the main I/O case is responsible for communicating with the CPU module in the control cabinet, the main communication module is responsible for issuing the information issued by the CPU module to each slave I/O case, and collecting information from each slave I/O case and sending the information to the CPU module, the I/O bus mode is avoided, ports and cables are reduced, and the field wiring complexity is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an expansion cabinet according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an extension cabinet according to another embodiment of the present invention.
Detailed Description
The invention provides a communication method between an expansion cabinet and a control cabinet for a nuclear power plant. The main I/O chassis comprises at least one main communication module and at least two PLM modules, wherein all the PLM modules are connected with one of the main communication modules, and all the main communication modules are sequentially connected. Further, all PLM modules may be connected to one of the master communication modules through an I2C bus or an SPI bus. The slave I/O chassis comprises a slave communication module and at least two PLM modules, wherein all the PLM modules are connected with the slave communication module, and each slave communication module is connected with a master communication module. Further, all PLM modules are connected to the slave communication module via an I2C bus or an SPI bus. Between the master I/O chassis and the slave I/O chassis, each slave communication module may be connected to one master communication module by an optical fiber, and the communication link between the slave communication module and the master communication module may be provided as redundancy.
When information is uploaded, each slave communication module collects the uploading information of each PLM module in the local box and sends the uploading information to the master communication module; the main communication module collects the uploading information of each PLM module in the local box and sends the collected uploading information and the uploading information collected by each slave communication module to the CPU module.
When the information is issued, the CPU module sends the issued information to the main communication module; the main communication module sends the issued information to each PLM module and each slave communication module in the local box; and each slave communication module sends the issued information to each PLM module in the local box.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
Fig. 1 is a schematic structural diagram of an expansion cabinet according to this embodiment, where the expansion cabinet includes a master I/O enclosure 10 and four slave I/O enclosures 11 to 14. The main I/O chassis 10 includes a main communication module 100 and five PLM modules, all of which are connected to the main communication module 100 via an I2C bus or SPI bus. Since each slave I/O chassis has the same structure, taking the slave I/O chassis 11 as an example, the slave I/O chassis 11 includes a slave communication module 110 and five PLM modules, all of which are connected to the slave communication module 110 through an I2C bus or an SPI bus, and the slave communication module 110 may be connected to the master communication module 100 through an optical fiber.
When information is uploaded, the slave communication modules 110 to 140 collect information of all PLM modules in the I/O case and transmit the information to the master communication module 100, the master communication module 100 collects information of all PLM modules in the I/O case and uploads the information of all PLM modules in the I/O case and the information uploaded from the slave communication modules 110 to 140 to a CPU module in a control cabinet; when information is issued, the main communication module 100 receives information from a CPU module in the control cabinet, issues the information to each PLM module in the local box and the slave communication modules 110 to 140, and the slave communication modules 110 to 140 issue the received information to each PLM module in the local box respectively.
Example 2
Fig. 2 is a schematic structural diagram of the extension cabinet of this embodiment, where the extension cabinet includes a master I/O enclosure 20 and four slave I/O enclosures 21 to 24. The main I/O chassis 20 includes a main communication module 200, a main communication module 201, and five PLM modules, all of which are connected to the main communication module 201 through an I2C bus or an SPI bus, and the main communication module 201 is connected to the main communication module 200. Of course, all PLM modules may also be connected to the master communication module 200 via the I2C bus or the SPI bus. Each slave I/O chassis includes five PLM modules and one slave communication module, and the PLM modules in the local chassis are connected to the slave communication modules in the local chassis via an I2C bus or an SPI bus. The slave communication module 210 and the slave communication module 220 are connected to the master communication module 201 by optical fibers, and the slave communication module 230 and the slave communication module 240 are connected to the master communication module 200 by optical fibers.
When information is uploaded, the slave communication modules 210 to 240 collect information of each PLM module in the I/O case, the slave communication module 210 and the slave communication module 220 transmit the collected information to the master communication module 201, the slave communication module 230 and the slave communication module 240 transmit the collected information to the master communication module 200, the master communication module 201 collects information of each PLM module in the I/O case, and the master communication module 200 or the master communication module 201 uploads the information of each PLM module in the I/O case and the information uploaded from the communication modules 210 to 240 to a CPU module in a control cabinet; when information is issued, the main communication module 200 or the main communication module 201 receives information from a CPU module in a control cabinet, the main communication module 201 issues the information to each PLM module and the slave communication modules 210 to 220 in the local box, the main communication module 200 issues the information to the slave communication modules 230 to 240, and the slave communication modules 210 to 240 each issue the received information to each PLM module in the local box.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (4)

1. A communication method for a nuclear power plant is characterized by comprising an information uploading method and an information issuing method, wherein the information uploading method is applied between an expansion cabinet and a control cabinet, the expansion cabinet comprises a main I/O (input/output) cabinet and at least one auxiliary I/O cabinet, and the control cabinet comprises at least one CPU (central processing unit) module;
the main I/O chassis comprises at least one main communication module and at least two PLM modules, wherein all the PLM modules are connected with one of the main communication modules, and all the main communication modules are sequentially connected;
the slave I/O chassis comprises a slave communication module and at least two PLM modules, wherein all the PLM modules are connected with the slave communication module, and each slave communication module is connected with a master communication module;
the information uploading method comprises the following steps:
each slave communication module collects the uploading information of each PLM module in the local box and sends the uploading information to the master communication module;
the main communication module collects the uploading information of each PLM module in the local box and sends the collected uploading information and the uploading information collected by each slave communication module to the CPU module;
the information issuing method is applied between an expansion cabinet and a control cabinet, the expansion cabinet comprises a main I/O case and at least one auxiliary I/O case, and the control cabinet comprises at least one CPU module;
the main I/O chassis comprises at least one main communication module and at least two PLM modules, wherein all the PLM modules are connected with one of the main communication modules, and all the main communication modules are sequentially connected;
the slave I/O chassis comprises a slave communication module and at least two PLM modules, wherein all the PLM modules are connected with the slave communication module, and each slave communication module is connected with a master communication module;
the information issuing method comprises the following steps:
the CPU module sends the issued information to the main communication module;
the main communication module sends the issued information to each PLM module and each slave communication module in the local box;
each slave communication module sends the issued information to each PLM module in the local box;
each slave communication module is connected with one master communication module through an optical fiber; the connection between each slave communication module and one master communication module is redundant; one main communication module in each main I/O case is connected with one CPU module through an optical fiber; the connection between one primary communication module and one CPU module in each primary I/O chassis is redundant.
2. A communication method for a nuclear power plant according to claim 1, characterized in that in said primary I/O chassis all PLM modules are connected to one of the primary communication modules by means of an I2C bus.
3. A communication method for a nuclear power plant according to claim 1, characterized in that in the primary I/O chassis, all PLM modules are connected with one of the primary communication modules by means of an SPI bus.
4. A communication method for a nuclear power plant according to claim 1, characterized in that in the slave I/O chassis, all PLM modules are connected with the slave communication module through an I2C bus or an SPI bus.
CN201710645962.6A 2017-08-01 2017-08-01 Information uploading method, information issuing method and communication method for nuclear power plant Active CN107272515B (en)

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CN110460542B (en) * 2019-08-13 2022-01-14 中核控制***工程有限公司 Nuclear power plant DCS (distributed control System) cascading data exchange system and data exchange method thereof

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CN106980306A (en) * 2017-03-29 2017-07-25 北京广利核***工程有限公司 A kind of nuclear power station data acquisition device and method

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CN201607962U (en) * 2009-12-11 2010-10-13 中广核工程有限公司 Nuclear power station conventional island switchgear redundancy control system
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Effective date of registration: 20201225

Address after: No.3, Hongda South Road, Beijing Economic and Technological Development Zone, Daxing District, Beijing

Patentee after: CHINA NUCLEAR CONTROL SYSTEM ENGINEERING Co.,Ltd.

Address before: 610000, No. three, 28 south section of Ring Road, Chengdu, Sichuan

Patentee before: NUCLEAR POWER INSTITUTE OF CHINA

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