CN113031477A - Signal conversion acquisition system based on optical fiber communication protocol - Google Patents
Signal conversion acquisition system based on optical fiber communication protocol Download PDFInfo
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- CN113031477A CN113031477A CN202110227845.4A CN202110227845A CN113031477A CN 113031477 A CN113031477 A CN 113031477A CN 202110227845 A CN202110227845 A CN 202110227845A CN 113031477 A CN113031477 A CN 113031477A
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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
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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Abstract
The invention discloses a signal conversion and acquisition system based on an optical fiber communication protocol, which comprises a case, a data processing board card module, an analog quantity signal input board card module, an analog quantity signal output board card module and a switching value input/output board card module, wherein the data processing board card module is arranged in the case and is based on optical fiber interaction; the data processing board card module based on optical fiber interaction is respectively connected with the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module in a data transmission way; the data processing board card module based on optical fiber interaction, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module can be expanded in number. The signal conversion and acquisition system has mutually independent functions, is independent in architecture and convenient to expand, is beneficial to increasing and decreasing the number of each channel module, and reduces the production cost.
Description
Technical Field
The invention relates to a signal conversion and acquisition system based on an optical fiber communication protocol, which is a part of an execution unit in power system simulation, can be used for a relay protection device analog quantity and switching value signal interface to generate alternating current quantity and switching value signals needing to be acquired by a relay protection device, is mainly applied to the simulation of relay protection devices of intelligent substations and digital substations, and belongs to the technical field of power systems.
Background
Along with the increasing intellectualization of the transformer substation, the functions of a system relay protection device, a measurement and control device, a merging unit and an intelligent terminal device are more, the system is more complex to test, the simulation field operation is more complex and changeable, higher requirements are provided for the stable and safe operation of intelligent transformer substation equipment, and a simulation system is the best way for realizing the operation in a simulation mode. The simulation system can simulate the operation process, simulate and generate known faults and check the working state of each device during the faults. The power station simulation system becomes indispensable equipment in the construction and operation of the power station. The electric power simulation system consists of a simulation calculation host and an execution unit (namely a signal conversion acquisition system), and the difficulty is increased for the number of the expansion channels of the execution unit along with the multiplication of analog quantity channels and digital quantity channels of intelligent station and direct current station equipment.
Therefore, a signal conversion and acquisition system is urgently needed, wherein each channel of the extended execution unit can be configured autonomously so as to reduce the production cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a signal conversion and acquisition system based on an optical fiber communication protocol, which has mutually independent functions, is self-contained in architecture, is convenient to expand, is beneficial to increasing and decreasing the number of modules of each channel and reduces the production cost.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a signal conversion and acquisition system based on an optical fiber communication protocol comprises a case, a data processing board card module, an analog quantity signal input board card module, an analog quantity signal output board card module and a switching value input/output board card module, wherein the data processing board card module is arranged in the case and is based on optical fiber interaction; the data processing board card module based on optical fiber interaction is respectively connected with the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module in a data transmission way; the data processing board card module based on optical fiber interaction, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module can be expanded in number.
Furthermore, a power card module is also arranged in the case; the power card module is electrically connected with the data processing board card module, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module.
Further, the data processing board card module comprises a field programmable logic gate array; the analog signal input board card template comprises an analog-to-digital converter; the analog signal output board card module comprises a digital-to-analog converter; the analog-to-digital converter is connected with the digital-to-analog converter through the field programmable logic gate array.
Preferably, the data processing board card module further includes an analog-to-digital conversion control module, and the analog-to-digital conversion control module is configured to drive the analog-to-digital converter.
Furthermore, the data processing board card module is connected with the analog quantity signal input board card module through an LVDS differential signal interface, and the data processing board card module is connected with the analog quantity signal output board card module through another LVDS differential signal interface.
Furthermore, the data processing board card module is provided with an optical fiber interface.
Furthermore, the data processing board card module is provided with a debugging interface.
Furthermore, a backboard board card is arranged in the case, a plurality of electric connecting terminal slots are arranged on the backboard board card, and electric connecting terminals for plugging the electric connecting terminal slots are respectively arranged on the data processing board card module, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module; the number of the slots of the electric connecting terminals is larger than that of the electric connecting terminals.
Compared with the prior art, the invention has the beneficial effects that:
the invention realizes a scheme of conveniently expanding the simulation input and output unit by utilizing a signal conversion acquisition system consisting of a data processing board card module, an analog quantity signal input board card module, an analog quantity signal output board card module, a switching value input and output board card module and a power board card module which are interacted by optical fibers.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a mechanical structure of a signal conversion and acquisition system based on an optical fiber communication protocol according to the present invention;
fig. 2 is a schematic circuit structure diagram of a signal conversion and acquisition system based on an optical fiber communication protocol according to the present invention. Wherein the reference symbols are:
1. the optical fiber interaction-based data processing board card module comprises a data processing board card module 2, an optical fiber interface 3, a debugging interface 4, an analog quantity signal input board card 5, an analog quantity signal output board card 6, a switching quantity input and output board card 7, a power supply board card 8, an internal communication network 9, a power supply loop 10, a signal wiring terminal 11, a power supply wiring terminal 12 and a backboard board card.
Detailed Description
As shown in fig. 1, the signal conversion and acquisition system based on the optical fiber communication protocol of the present invention includes a chassis, a data processing board card module 1 based on optical fiber interaction, an analog quantity signal input board card module 4, an analog quantity signal output board card module 5, and a switching value input/output board card module 6, which are disposed in the chassis; the data processing board card module based on optical fiber interaction is respectively connected with the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module in a data transmission way; the data processing board card module based on optical fiber interaction, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module can be expanded in number.
In order to realize that the number of a data processing board card module, an analog quantity signal input board card module, an analog quantity signal output board card module and a switching value input/output board card module based on optical fiber interaction can be expanded, a backboard board card 12 is arranged in the case, a plurality of electric connecting terminal slots are arranged on the backboard board card, and electric connecting terminals for plugging the electric connecting terminal slots are respectively arranged on the data processing board card module, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module; the number of the slots of the electric connecting terminals is larger than that of the electric connecting terminals. It should be noted that the plurality of electrical connection terminal slots described in the present invention specifically refer to more than 4 electrical connection terminal slots.
Specifically, the case further comprises a power card module 7; the power card module is electrically connected with the data processing board card module, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module. The power supply board card is connected with the data processing board card module, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module through a power supply loop 9. And the power supply card module is also provided with a power supply wiring terminal.
Specifically, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module are provided with signal wiring terminals 10, and the power supply card module is provided with power supply wiring terminals 11.
Specifically, the data processing board card module comprises a field programmable logic gate array; the analog signal input board card template comprises an analog-to-digital converter; the analog signal output board card module comprises a digital-to-analog converter; the analog-to-digital converter is connected with the digital-to-analog converter through the field programmable logic gate array.
Specifically, the data processing board card module further includes an analog-to-digital conversion control module, and the analog-to-digital conversion control module is configured to drive the analog-to-digital converter.
Specifically, the data processing board card module is connected with the analog quantity signal input board card module through an LVDS differential signal interface, and the data processing board card module is connected with the analog quantity signal output board card module through another LVDS differential signal interface.
Specifically, the data processing board card module is provided with an optical fiber interface 2.
Specifically, the data processing board card module is provided with a debugging interface 3.
Specifically, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module are provided with signal wiring terminals.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. A signal conversion acquisition system based on an optical fiber communication protocol is characterized in that: the optical fiber interaction-based data processing system comprises a case, a data processing board card module, an analog quantity signal input board card module, an analog quantity signal output board card module and a switching value input/output board card module, wherein the data processing board card module, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module are arranged in the case; the data processing board card module based on optical fiber interaction is respectively connected with the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module in a data transmission way; the data processing board card module based on optical fiber interaction, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module can be expanded in number.
2. The system according to claim 1, wherein: a power card module is also arranged in the case; the power card module is electrically connected with the data processing board card module, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module.
3. The system according to claim 1, wherein: the data processing board card module comprises a field programmable logic gate array; the analog signal input board card template comprises an analog-to-digital converter; the analog signal output board card module comprises a digital-to-analog converter; the analog-to-digital converter is connected with the digital-to-analog converter through the field programmable logic gate array.
4. The system according to claim 3, wherein: the data processing board card module further comprises an analog-to-digital conversion control module, and the analog-to-digital conversion control module is used for driving the analog-to-digital converter.
5. A signal conversion acquisition system based on a fiber optic communication protocol according to any one of claims 1-4 wherein: the data processing board card module is connected with the analog quantity signal input board card module through an LVDS differential signal interface, and the data processing board card module is connected with the analog quantity signal output board card module through another LVDS differential signal interface.
6. A signal conversion acquisition system based on a fiber optic communication protocol according to any one of claims 1-4 wherein: the data processing board card module is provided with an optical fiber interface.
7. A signal conversion acquisition system based on a fiber optic communication protocol according to any one of claims 1-4 wherein: the data processing board card module is provided with a debugging interface.
8. A signal conversion acquisition system based on a fiber optic communication protocol according to any one of claims 1-4 wherein: a backboard board card is arranged in the case, a plurality of electric connecting terminal slot positions are arranged on the backboard board card, and electric connecting terminals for plugging the electric connecting terminal slot positions are respectively arranged on the data processing board card module, the analog quantity signal input board card module, the analog quantity signal output board card module and the switching value input/output board card module; the number of the slots of the electric connecting terminals is larger than that of the electric connecting terminals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110227845.4A CN113031477A (en) | 2021-03-01 | 2021-03-01 | Signal conversion acquisition system based on optical fiber communication protocol |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110227845.4A CN113031477A (en) | 2021-03-01 | 2021-03-01 | Signal conversion acquisition system based on optical fiber communication protocol |
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| CN113031477A true CN113031477A (en) | 2021-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039960A (en) * | 2021-10-09 | 2022-02-11 | 许昌开普检测研究院股份有限公司 | RTDS intelligent interface device based on Aurora protocol and implementation method thereof |
| CN114124588A (en) * | 2021-09-30 | 2022-03-01 | 国电南瑞科技股份有限公司 | Interface data interaction device, method and system |
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| CN204347497U (en) * | 2014-12-01 | 2015-05-20 | 特变电工新疆新能源股份有限公司 | A kind of control system |
| CN107942808A (en) * | 2017-12-08 | 2018-04-20 | 中国核动力研究设计院 | A kind of DCS capacity extensions device |
| CN209489030U (en) * | 2018-10-30 | 2019-10-11 | 北京金风科创风电设备有限公司 | Master control cabinet and power electronic control system |
| CN214410273U (en) * | 2021-03-01 | 2021-10-15 | 北京四方继保工程技术有限公司 | Signal conversion acquisition system based on optical fiber communication protocol |
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2021
- 2021-03-01 CN CN202110227845.4A patent/CN113031477A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204347497U (en) * | 2014-12-01 | 2015-05-20 | 特变电工新疆新能源股份有限公司 | A kind of control system |
| CN107942808A (en) * | 2017-12-08 | 2018-04-20 | 中国核动力研究设计院 | A kind of DCS capacity extensions device |
| CN209489030U (en) * | 2018-10-30 | 2019-10-11 | 北京金风科创风电设备有限公司 | Master control cabinet and power electronic control system |
| CN214410273U (en) * | 2021-03-01 | 2021-10-15 | 北京四方继保工程技术有限公司 | Signal conversion acquisition system based on optical fiber communication protocol |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114124588A (en) * | 2021-09-30 | 2022-03-01 | 国电南瑞科技股份有限公司 | Interface data interaction device, method and system |
| CN114039960A (en) * | 2021-10-09 | 2022-02-11 | 许昌开普检测研究院股份有限公司 | RTDS intelligent interface device based on Aurora protocol and implementation method thereof |
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Application publication date: 20210625 |