CN113888842B - Real-time monitoring and early warning system and method for molten iron desulphurization process flow - Google Patents
Real-time monitoring and early warning system and method for molten iron desulphurization process flow Download PDFInfo
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- CN113888842B CN113888842B CN202010628495.8A CN202010628495A CN113888842B CN 113888842 B CN113888842 B CN 113888842B CN 202010628495 A CN202010628495 A CN 202010628495A CN 113888842 B CN113888842 B CN 113888842B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
Abstract
The invention discloses a real-time monitoring and early warning system for a molten iron desulphurization process flow, which comprises: the acquisition device acquires signal data of a molten iron desulphurization production line site and sends the acquired signal data to the data processing device through the communication module; the data processing device is used for processing and judging data according to the acquired signal data and sending a signal to the display terminal and/or the early warning device through the communication module according to a judgment result; when the judgment result is in the first state, the display terminal displays the judgment result; when the judgment result is in a second state, the display terminal displays the judgment result, and the early warning device gives an early warning; a display terminal that displays a judgment result of the data processing apparatus; and the communication module is in communication connection with the acquisition device, the data processing device and the display terminal. In addition, the invention also discloses a real-time monitoring and early warning method for the molten iron desulphurization process flow.
Description
Technical Field
The invention relates to a process monitoring and early warning system and a method, in particular to a monitoring and early warning system and a method in a molten iron desulphurization process. In particular to a visual navigation early warning system and a visual navigation early warning method for the whole process of the molten iron desulphurization process of a steel plant.
Background
With the rapid development of modern industrial production and scientific technology, the requirement on the quality of steel is increasingly improved, the molten iron desulphurization process is taken as one of key processes influencing the quality of steel, and a steel factory puts higher requirements on the flow management and control of the desulphurization process. Therefore, the managers of the steel plant expect to be free from inquiry and report, and can quickly and accurately know the state and the progress of the current desulfurization process at any time so as to carry out all-around control on the whole service. Similarly, technicians and operators expect to get rid of drawings and break technical barriers, each link and operation of complex and complicated processes can be thoroughly burnt, and when problems occur in the process, a large amount of time is not needed to be spent on step-by-step troubleshooting, and the problem environment or abnormal operation can be quickly and accurately positioned.
In the published patents related to the molten iron desulphurization process, the research on the whole flow management and control of the desulphurization process is not available, and more, the research is specially carried out on a certain link.
In the relevant papers on the iron melt desulfurization process, such studies are mostly improvements to the underlying control system or the final effect of the process. For example: the design and application of an automatic control system of a molten iron desulphurization station of plum steel, and the like of the prosperity, and the research and production application of a process for desulfurizing molten iron in a first steel plant of first steel, of the Sun Virging, and the like. However, the above studies either only analyze the influence of the equipment and process on the desulfurization effect, or concentrate on the process innovation and equipment efficiency.
Through the search of documents and patents, the patents and documents related to the molten iron desulfurization process are, for example: chinese patent publication No. CN109376794A, published as 2019, 2, month, and 22, entitled "intelligent fault diagnosis method and system for molten iron desulphurization agitator", discloses an intelligent fault diagnosis method and system for a molten iron desulphurization agitator. However, the technical solution disclosed in this patent document does not relate to monitoring and warning of the molten iron desulphurization process flow.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a real-time monitoring and early warning system and method for a molten iron desulphurization process flow.
In order to achieve the above object, the present invention provides a real-time monitoring and early warning system for molten iron desulphurization process flow, which comprises:
the acquisition device acquires signal data of the molten iron desulphurization production line site and sends the acquired signal data to the data processing device through the communication module;
the data processing device is used for processing and judging data according to the acquired signal data and sending a signal to the display terminal and/or the early warning device through the communication module according to a judgment result; when the judgment result is in the first state, the display terminal displays the judgment result; when the judgment result is in a second state, the display terminal displays the judgment result, and the early warning device gives an early warning;
the display terminal displays the judgment result of the data processing device, wherein the display terminal comprises a link state display module and a transition operation execution display module, and after the display terminal receives a signal, an indicator lamp on the link state display module and/or the transition operation execution display module is long-lighted or flickers;
and the communication module is in communication connection with the acquisition device, the data processing device and the display terminal.
Preferably, in the real-time monitoring and early warning system for the molten iron desulphurization process flow, the communication module adopts ethernet for communication transmission.
Preferably, in the real-time monitoring and early warning system for the molten iron desulphurization process flow, the link state display module comprises at least one of the following modules: the system comprises a waiting link display module, an occurred link display module, a navigation link display module and an abnormal link display module.
Preferably, in the real-time monitoring and early-warning system for molten iron desulphurization process flow, the transition operation execution display module comprises at least one of the following modules: the device comprises an unexecuted display module, an executed display module, a navigation operation display module and an abnormal operation display module.
Preferably, in the real-time monitoring and early warning system for the molten iron desulphurization process flow, when the data processing device performs judgment, the judgment result is calculated by using a JavaScript script and a function encapsulated in configuration software.
Preferably, in the real-time monitoring and early-warning system for molten iron desulphurization process flow described in the present invention, when the data processing device calculates at least one of the following calculation results, the determination result is the first state:
the current calculation value of the link state display module is 1, and the calculation value of the previous transition operation execution display module is 1;
the current calculation value of the link state display module is 0, and the previous transition operation execution display module calculation value is 1;
the current calculation value of the link state display module is 0, and the previous transition operation execution display module calculation value is 0;
the current calculation value of the transitional operation execution display module is 1, and the previous link state display module calculation value is 1;
the current calculation value of the transitional operation execution display module is 0, and the previous link state display module calculation value is 1;
the current calculation value of the transitional operation execution display module is 0, and the previous link state display module calculation value is 0.
Preferably, in the real-time monitoring and early warning system for molten iron desulphurization process flow described in the present invention, when the data processing device calculates at least one of the following calculation results, the determination result is in the second state:
the current calculation value of the link state display module is 1, and the previous transition operation execution display module calculation value is 0;
the current calculation value of the transitional operation execution display module is 1, and the calculation value of the previous link state display module is 0.
Preferably, in the real-time monitoring and early warning system for the molten iron desulphurization process flow, the data processing device adopts a timer in configuration software, and reads and judges the numerical value acquired by the acquisition device every 1000 ms.
Accordingly, another object of the present invention is to provide a real-time monitoring and early warning method for molten iron desulphurization process flow, which comprises the following steps:
the acquisition device acquires signal data of a molten iron desulphurization production line site and sends the acquired signal data to the data processing device through the communication module;
the data processing device processes and judges the data according to the acquired signal data, and sends a signal to the display terminal and/or the early warning device through the communication module according to a judgment result; when the judgment result is in the first state, the display terminal displays the judgment result; when the judgment result is in a second state, the display terminal displays the judgment result, and the early warning device gives an early warning;
wherein, display terminal includes link state display module and transition operation execution display module assembly, after display terminal received the signal, the pilot lamp on link state display module assembly and/or the transition operation execution display module assembly is bright or the scintillation for a long time.
Preferably, in the real-time monitoring and early warning method for the molten iron desulphurization process flow, the communication module adopts the ethernet for communication transmission.
Compared with the prior art, the real-time monitoring and early warning system and method for the molten iron desulphurization process flow have the following beneficial effects:
1. the real-time monitoring and early warning system for the molten iron desulphurization process flow has high operation flexibility by arranging the link state display module and the transitional operation execution display module, and can monitor the process flow in time by the real-time monitoring and early warning method for the molten iron desulphurization process flow once a certain link or operation in the molten iron desulphurization process is changed.
2. The real-time monitoring and early warning system for the molten iron desulphurization process flow enables monitoring data to be mastered by relevant operators by observing the change state of the indicator light by arranging the link state display module and the transition operation execution display module, greatly facilitates the operation of the relevant operators, greatly reduces the working intensity and the technical threshold of managers or technicians on the molten iron desulphurization process flow, and greatly reduces the misoperation rate.
3. The real-time monitoring and early warning system for the molten iron desulphurization process flow, provided by the invention, has the advantages that the early warning device is arranged, so that when the data processing device judges that the second state (such as a process link or an abnormal operation state) occurs, the early warning device can give an alarm in time, and assists related operators to quickly and timely locate a problem link or where the abnormal operation occurs, and the fault of the molten iron desulphurization process flow is better checked.
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Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic flow chart of a real-time monitoring and early warning method for a molten iron desulphurization process flow according to an embodiment of the invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the concept of the invention. All falling within the scope of the present invention.
Example 1
In this embodiment, the real-time monitoring and early warning method for molten iron desulphurization process flow includes the following steps:
the acquisition device acquires signal data of a molten iron desulphurization production line site and sends the acquired signal data to the data processing device through the communication module;
the data processing device processes and judges the data according to the acquired signal data, and sends a signal to the display terminal and/or the early warning device through the communication module according to a judgment result; when the judgment result is in the first state, the display terminal displays the judgment result; when the judgment result is in a second state, the display terminal displays the judgment result, and the early warning device gives an early warning;
wherein, display terminal includes link state display module and transition operation execution display module assembly, after display terminal received the signal, the pilot lamp on link state display module assembly and/or the transition operation execution display module assembly is bright or the scintillation for a long time.
It should be noted that the communication module uses ethernet for communication transmission.
In this embodiment, the first state includes that the link is normal and/or the operation is normal, at this time, the display terminal only displays the determination result, and the second state includes that the link is abnormal and/or the operation is abnormal, at this time, not only the display terminal displays the determination result, but also the early warning device performs early warning, for example, sends out an alarm signal, or sends alarm information to a mobile phone or a computer of a relevant operator.
Correspondingly, in this embodiment, a real-time monitoring and early warning system for a molten iron desulphurization process flow is further provided, which is implemented based on the real-time monitoring and early warning method for a molten iron desulphurization process flow, and includes:
the acquisition device acquires signal data of the molten iron desulphurization production line site and sends the acquired signal data to the data processing device through the communication module;
the data processing device is used for processing and judging data according to the acquired signal data and sending a signal to the display terminal and/or the early warning device through the communication module according to a judgment result; when the judgment result is in the first state, the display terminal displays the judgment result; when the judgment result is in a second state, the display terminal displays the judgment result, and the early warning device gives an early warning;
the display terminal is used for displaying a judgment result of the data processing device, and comprises a link state display module and a transitional operation execution display module, and when the display terminal receives a signal, an indicator lamp on the link state display module and/or the transitional operation execution display module is on or flickers;
and the communication module is in communication connection with the acquisition device, the data processing device and the display terminal.
Example 2
Fig. 1 is a schematic flow chart of a real-time monitoring and early warning method for a molten iron desulphurization process flow according to an embodiment of the invention.
As shown in fig. 1, according to the molten iron desulphurization process flow of the steel plant, an early warning interface is built, and during the building, visual setting can be carried out according to the links involved in the process or transition operation, and the early warning interface comprises the following steps:
step 100: editing a visual navigation early warning interface through a 2D designer of configuration software;
step 200: variable points are established through the edge management function of configuration software, connection is established with a PLC in a molten iron desulphurization process production line, and communication is realized through an Ethernet;
link state display module has set up four kinds of visual state modules to every link piece, includes: the system comprises a waiting link display module, an occurred link display module, a navigation link display module and an abnormal link display module. When the link block judges that the link block is waiting for the link to occur, the display module of the waiting link displays white, when the link block judges that the link has occurred, the display module of the waiting link displays green, when the link block judges that the navigation link has occurred, the display module of the navigation link displays red and green flickering, and when the link block judges that the link has abnormal, the display module of the abnormal link displays yellow.
And the transitional operation execution display module group has set up four kinds of visual state modules to the operating condition equally, include: the device comprises an unexecuted display module, an executed display module, a navigation operation display module and an abnormal operation display module. When the operation is judged to be unexecuted, the unexecuted display module displays a black text, when the operation is judged to be executed, the executed display module displays a green text, when the operation is judged to be navigation operation, the navigation operation display module displays a red-green flashing text, and when the operation is judged to be abnormal operation, the abnormal operation display module displays a yellow text.
And preferably, when the navigation operation display module displays, the flow effect can be displayed on the line frame of the red and green flickering text.
It should be noted that, in the above determination process, the corresponding module may be lighted or highlighted by generating different signals, so as to display different link states or operations.
In addition, except that the indicator lights with different colors are used for displaying texts with different colors so as to distinguish different visual states, beacons with different colors can be used to distinguish different visual states.
The above-mentioned calculated value of binding one point or several points for each link block, that is, for each link state, may be set based on one or more signal data of the acquisition device, for example: for the link that the ladle is positioned at the ladle position, the calculated value can be the distance between the ladle and the ladle position, and also can be the distance between the ladle and a certain reference object and the distance between the ladle and the reference object so as to determine the link state that the ladle is positioned at the ladle position.
In some preferred embodiments, a timer in the configuration software may be used to read the variable point value bound to each link block every 1000ms for determining the link and transition operation states.
Step 300: and realizing the color change and line flow effect of the corresponding link block according to the variable point value and other set conditions by using a JavaScript script and a function packaged in configuration software.
Specifically, the link state display module is not only determined by the calculation point value of the bound link block, but also limited by the completion condition of the last transition operation. When the bound link block point value is 1 and the last transition operation is also 1, the current link state is considered to be the occurred state; if the binding link block point value is 0 and the last transition operation is 1, the current state is considered as the navigation state; if the value of the bound link block point is 0 and the last transition operation is 0, the current state is considered to be the non-occurrence state.
The transitional operation execution display module is not only determined by the binding operation, but also is limited by the state of the previous link. When the execution of the bound operation is 1 and the display of the previous link state module is also 1, the current transitional operation is considered as the executed state; if the bound operation execution point value is 0 and the last link state module displays 1, the current operation is considered as the navigation operation; if the point value of the execution of the operation of the bind is 0 and the last link status module shows 0, the current operation is considered to be an unexecuted operation.
It should be noted that, in the calculation, if the variable point value is not executed or in the state, the variable point value is marked as 0, and if the variable point value is executed or in the state, the variable point value is marked as 1.
It is added that when the molten iron desulphurization process enters a branch-producing flow, a plurality of transitional operations in the 'navigation' state can exist at the same time. When a plurality of branch flows of the process are finished and ready to be merged into the next process flow, a plurality of transitional operations in a navigation state can exist at the same time.
It should be noted that, when the link state display module is bound to a link block of 1 and the point bound to the previous transition operation state is 0, it indicates that the link is in an abnormal state; and when the operation execution point value bound in the transitional operation state is 1 and the last link state module displays that the bound point is 0, the abnormal operation is indicated, and the abnormal state is indicated in the two conditions.
Step 400: when entering an abnormal state, the early warning device performs an early warning operation. The early warning operation comprises visual early warning and early warning information pushing, wherein the visual early warning specifically comprises the following steps:
when the current link state is in an abnormal state, the abnormal link display module displays yellow, and the current link state is in an early warning state;
when the current transition operation is abnormal operation, the abnormal operation display module displays a yellow text, and the current transition operation is in an early warning state;
when the link state is in an abnormal state and the transition operation is in an abnormal operation, the link state display module and the transition operation execution display module both display yellow, which indicates that the visible flow is discontinuous.
The pushing of the early warning information can be realized through an alarm control, and the early warning control can also use the edge management function of the configuration software to establish a calculation point, for example: for the calculation of an abnormal state, setting A = a current ring node value (the value of A is 1 or 0), setting B = a last transition operating point value (the value of B is 1 or 0), and judging that the current ring node value is in the abnormal state if and only if A × 1+ B × 2= 1; for the abnormal operation calculation, X = the current transition operation point value (X takes a value of 1 or 0), and Y = the last ring node value (Y takes a value of 1 or 0), and if and only if X × 1+ Y × 2=1, it is judged that the abnormal operation occurs at this time.
In the configuration of the calculation points of the early warning control, the warning level, the triggering condition, the warning category and the like are configured, the warning control is dragged to a visual configuration interface, and when the set value of the calculation points is met, the early warning information is automatically pushed.
By the method, real-time monitoring and early warning of the molten iron desulphurization process flow can be realized, and particularly, excellent visual management and real-time monitoring effects can be realized on each link state and corresponding operation flow of the process.
It is conceivable that, in this embodiment, a real-time monitoring and early-warning system for a molten iron desulphurization process flow is also provided, which is implemented based on the real-time monitoring and early-warning method for a molten iron desulphurization process flow.
It should be noted that the prior art in the protection scope of the present invention is not limited to the examples given in the specification, and all the prior art which is not inconsistent with the technical solution of the present invention, including but not limited to the prior patent documents, the prior publications and the like, can be included in the protection scope of the present invention.
In addition, the combination of the features in the present application is not limited to the combination described in the claims of the present application or the combination described in the embodiments, and all the features described in the present application may be freely combined or combined in any manner unless contradictory to each other occurs.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (6)
1. The utility model provides a molten iron desulfurization process flow real-time supervision early warning system which characterized in that includes:
the acquisition device acquires signal data of the molten iron desulphurization production line site and sends the acquired signal data to the data processing device through the communication module;
the data processing device is used for processing and judging data according to the acquired signal data and sending a signal to the display terminal and/or the early warning device through the communication module according to a judgment result; when the judgment result is in the first state, the display terminal displays the judgment result; when the judgment result is in a second state, the display terminal displays the judgment result, and the early warning device gives an early warning;
the display terminal displays a judgment result of the data processing device, and comprises a link state display module and a transition operation execution display module, and when the display terminal receives a signal, an indicator lamp on the link state display module and/or the transition operation execution display module is on or flickers;
the communication module is in communication connection with the acquisition device, the data processing device and the display terminal;
the link state display module comprises at least one of the following modules: a display module of waiting links, a display module of occurring links, a display module of navigation links and a display module of abnormal links;
the transitional operation execution display module comprises at least one of the following modules: the device comprises an unexecuted display module, an executed display module, a navigation operation display module and an abnormal operation display module;
setting for each link state based on one or more signal data of the acquisition device;
the link state display module is not only determined by the calculation point value of the bound link block, but also limited by the completion condition of the last transition operation;
the transitional operation execution display module is determined by the binding operation and is also limited by the state of the previous link;
when the data processing device calculates at least one of the following calculation results, the judgment result is in a first state:
the current calculation value of the link state display module is 1, and the calculation value of the previous transition operation execution display module is 1;
the current calculation value of the link state display module is 0, and the previous transition operation execution display module calculation value is 1;
the current calculation value of the link state display module is 0, and the calculation value of the previous transition operation execution display module is 0;
the current calculation value of the transitional operation execution display module is 1, and the calculation value of the previous link state display module is 1;
the current calculation value of the transitional operation execution display module is 0, and the calculation value of the previous link state display module is 1;
the current calculation value of the transitional operation execution display module is 0, and the calculation value of the previous link state display module is 0;
when the data processing device calculates at least one of the following calculation results, the judgment result is in a second state:
the current calculation value of the link state display module is 1, and the calculation value of the previous transition operation execution display module is 0;
the current calculation value of the transitional operation execution display module is 1, and the calculation value of the previous link state display module is 0.
2. The real-time monitoring and early warning system for the molten iron desulphurization process flow according to claim 1, wherein the communication module adopts Ethernet for communication transmission.
3. The real-time monitoring and early warning system for the molten iron desulphurization process flow according to claim 1, wherein the data processing device calculates the judgment result by using JavaScript and functions packaged in configuration software when performing the judgment.
4. The real-time monitoring and early warning system for the molten iron desulphurization process flow according to claim 1, wherein the data processing device adopts a timer in configuration software, and reads and judges the signal data acquired by the acquisition device every 1000 ms.
5. A real-time monitoring and early warning method for a molten iron desulphurization process flow is characterized by comprising the following steps:
the acquisition device acquires signal data of a molten iron desulphurization production line site and sends the acquired signal data to the data processing device through the communication module;
the data processing device processes and judges the data according to the acquired signal data, and sends a signal to the display terminal and/or the early warning device through the communication module according to a judgment result; when the judgment result is in the first state, the display terminal displays the judgment result; when the judgment result is in a second state, the display terminal displays the judgment result, and the early warning device gives an early warning;
the display terminal comprises a link state display module and a transition operation execution display module, and after the display terminal receives a signal, indicator lights on the link state display module and/or the transition operation execution display module are/is on or flash;
the link state display module comprises at least one of the following modules: a display module of waiting links, a display module of occurring links, a display module of navigation links and a display module of abnormal links;
the transitional operation execution display module comprises at least one of the following modules: the device comprises an unexecuted display module, an executed display module, a navigation operation display module and an abnormal operation display module;
setting one or more signal data based on the acquisition device for each link state;
the link state display module is not only determined by the calculation point value of the bound link block, but also limited by the completion condition of the last transition operation;
the transitional operation execution display module is determined by the binding operation and is also limited by the state of the previous link;
when the data processing device calculates at least one of the following calculation results, the judgment result is in a first state:
the current calculation value of the link state display module is 1, and the previous transition operation execution display module calculation value is 1;
the current calculation value of the link state display module is 0, and the previous transition operation execution display module calculation value is 1;
the current calculation value of the link state display module is 0, and the previous transition operation execution display module calculation value is 0;
the current calculation value of the transitional operation execution display module is 1, and the previous link state display module calculation value is 1;
the current calculation value of the transitional operation execution display module is 0, and the calculation value of the previous link state display module is 1;
the current calculation value of the transitional operation execution display module is 0, and the calculation value of the previous link state display module is 0;
when the data processing device calculates at least one of the following calculation results, the judgment result is in a second state:
the current calculation value of the link state display module is 1, and the previous transition operation execution display module calculation value is 0;
the current calculation value of the transitional operation execution display module is 1, and the previous link state display module calculation value is 0.
6. The real-time monitoring and early warning method for the molten iron desulphurization process flow according to claim 5, wherein the communication module adopts Ethernet for communication transmission.
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| CN113888842A (en) | 2022-01-04 |
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