CN117742265A

CN117742265A - DCS-based early warning method and system

Info

Publication number: CN117742265A
Application number: CN202311759497.0A
Authority: CN
Inventors: 罗橙; 蒋骏; 戴晓华; 张森; 罗幸明
Original assignee: Zhongkong Technology Co ltd
Current assignee: Zhongkong Technology Co ltd
Priority date: 2023-12-20
Filing date: 2023-12-20
Publication date: 2024-03-22

Abstract

The invention provides a DCS-based early warning method and a DCS-based early warning system, which are used for detecting variable values of various variables in temporary alarm configuration indicated by a temporary alarm data subscription request; the temporary alarm configuration is generated according to temporary alarm conditions configured by a user based on a temporary alarm monitoring interface and various variables and variable values thereof; the variable is a variable related to the equipment to be detected; when the change of the variable value of any variable is detected, a corresponding change notification is generated; wherein the change notification includes a current variable value for each variable; judging whether the current variable value of each variable meets a temporary alarm condition or not; and if the current variable values of the variables meet the temporary alarm conditions, generating temporary alarm data of the equipment to be monitored.

Description

DCS-based early warning method and system

Technical Field

The invention relates to the technical field of electric digital signals, in particular to a DCS-based early warning method and system.

Background

In the field of process industry, configuration engineers can use configuration software in a distributed control system (Distributed Control System, DCS) to configure corresponding monitoring variables of each corresponding device according to the condition of factory equipment, and issue the configured monitoring variables; and an operator monitors a certain published variable during the monitoring period to judge whether the corresponding equipment operates normally.

However, this monitoring method can only monitor a single variable, and in the actual application process, the monitored variable focused by the operator and the variable focused by the configuration engineer may be different, so that it is difficult for the operator to identify potential problems and emergencies according to the issued single variable, and corresponding measures cannot be timely taken for the equipment with faults.

Disclosure of Invention

In view of the above, the invention provides a DCS-based early warning method and system, which are used for solving the problem that in the prior art, operators are difficult to identify potential problems and emergency situations according to issued single variables, so that corresponding measures cannot be taken on equipment with faults in time.

The first aspect of the invention provides a DCS-based early warning method, which is applied to a DSC-based early warning system, and comprises the following steps:

detecting variable values of variables in the temporary alarm configuration indicated by the temporary alarm data subscription request; the temporary alarm configuration is generated according to temporary alarm conditions configured by a user based on a temporary alarm monitoring interface and the variables and variable values thereof; the variable is a variable related to the equipment to be detected;

When the change of the variable value of any one variable is detected, a corresponding change notification is generated; wherein the change notification includes a current variable value for each of the variables;

judging whether the current variable value of each variable meets the temporary alarm condition;

and if the current variable values of the variables meet the temporary alarm conditions, generating temporary alarm data of the equipment to be monitored.

Optionally, the generating the temporary alarm configuration according to the temporary alarm condition configured by the user based on the temporary alarm monitoring interface and each variable and the variable value thereof includes:

responding to temporary alarm configuration operation of a user on the equipment to be monitored based on a temporary alarm monitoring interface, and acquiring alarm conditions corresponding to the temporary alarm configuration operation and variables and variable values thereof;

and generating a temporary alarm configuration corresponding to the equipment to be monitored according to the alarm condition and each variable and variable value thereof.

Optionally, the method further comprises:

responding to the updating operation of the user on the temporary alarm configuration based on the temporary alarm monitoring interface, and acquiring a target temporary alarm condition and/or a target variable and a variable value thereof corresponding to the updating operation;

Updating the temporary alarm condition and/or the corresponding variable and variable value thereof in the temporary alarm configuration by utilizing the target temporary alarm condition and/or the target variable and variable thereof;

and replacing the temporary alarm configuration indicated by the temporary alarm data subscription request with the updated temporary alarm configuration.

Optionally, the method further comprises:

when the user login state corresponding to the temporary alarm configuration is detected to be changed, a corresponding user login change message is generated, and the step of detecting the variable values of all variables in the temporary alarm configuration indicated by the temporary alarm data subscription request is executed.

Optionally, the method further comprises:

sequentially adding the temporary alarm data into a temporary alarm queue; wherein the temporary alarm queue comprises at least one temporary alarm data;

and acquiring forefront temporary alarm data which are not displayed from the temporary alarm queue, and displaying the forefront temporary alarm data until the temporary alarm queue does not have the temporary alarm data which are not displayed.

The second aspect of the present invention provides the DCS-based early warning system, which at least includes an operation station and a main server, the main server includes a real-time data service, the operation station includes a temporary alarm service and a temporary alarm monitoring interface, the method includes:

The real-time data service is used for detecting variable values of various variables in the temporary alarm configuration indicated by the temporary alarm data subscription request; when the change of the variable value of any one variable is detected, sending the generated change notification to a temporary alarm service; the temporary alarm configuration is generated according to temporary alarm conditions configured by a user based on the temporary alarm monitoring interface and the variables and the variable values thereof; the variable is a variable related to the equipment to be detected; the change notification includes a current variable value for each of the variables;

the temporary alarm service is used for judging whether the current variable value of each variable meets the temporary alarm condition; and if the current variable values of the variables meet the temporary alarm conditions, generating temporary alarm data of the equipment to be monitored.

Optionally, the main server includes a user data service;

the user data service is used for responding to temporary alarm configuration operation of a user on the equipment to be monitored based on a temporary alarm monitoring interface and obtaining alarm conditions corresponding to the temporary alarm configuration operation and various variables and variable values thereof; and generating a temporary alarm configuration corresponding to the equipment to be monitored according to the alarm condition and each variable and variable value thereof.

Optionally, the user data service is further configured to:

responding to the updating operation of the user on the temporary alarm configuration based on the temporary alarm monitoring interface, and acquiring a target temporary alarm condition and/or a target variable and a variable value thereof corresponding to the updating operation; updating the temporary alarm condition and/or the corresponding variable and variable value thereof in the temporary alarm configuration by utilizing the target temporary alarm condition and/or the target variable and variable thereof; and replacing the temporary alarm configuration indicated by the temporary alarm data subscription request with the updated temporary alarm configuration.

Optionally, the main server further comprises a user login service;

the user login service is used for responding to the updating operation of the user on the temporary alarm configuration based on the temporary alarm monitoring interface and obtaining a target temporary alarm condition and/or a target variable and a variable value thereof corresponding to the updating operation; and updating the temporary alarm condition and/or the corresponding variable and variable value thereof in the temporary alarm configuration by utilizing the target temporary alarm condition and/or the target variable and variable thereof.

Optionally, the early warning system based on DCS further comprises a slave server; the structure of the slave server is the same as that of the master server;

The master server is used for synchronizing the temporary alarm data subscription request to the slave server; when the working state of the slave server is detected to be an abnormal state, the slave server and the master server are subjected to master-slave switching, so that the slave server is changed to the master server, and the master server is changed to the slave server.

The invention provides a DCS-based early warning method and system, which can enable a user to configure corresponding temporary alarm conditions and variables and variable values thereof on a temporary alarm monitoring interface according to each variable of interest of equipment to be monitored, a configuration engineer is not required to configure a single monitoring variable, and flexibility and adaptability of temporary alarm configuration are improved; the DCS-based early warning system can generate corresponding temporary alarm configuration according to temporary alarm conditions configured by a user based on the temporary alarm monitoring interface, each variable and variable values thereof, and detect variable values of each variable in the temporary alarm configuration; when the variable value of any variable is detected to be changed, a corresponding change notification is generated, then whether the current variable value of each variable in the change notification meets a temporary alarm condition is judged, and finally temporary alarm data of equipment to be monitored are generated under the condition that the current variable value of each variable meets the temporary alarm condition, so that a user can quickly know the abnormal condition of the equipment to be monitored, and take corresponding measures in time, and the problems that an operator is difficult to identify potential problems and emergency conditions according to the issued single variable and cannot take corresponding measures to the equipment with faults in time in the prior art are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of a DCS-based early warning system according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of another DCS-based early warning system according to an embodiment of the present invention;

FIG. 3 is an exemplary diagram of a DCS-based early warning system provided by an embodiment of the present invention;

FIG. 4 is a schematic flow chart of a DCS-based early warning method according to an embodiment of the present invention;

fig. 5 is an exemplary diagram of a DCS-based early warning method according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used for distinguishing between different devices, modules, or units and not for limiting the order or interdependence of the functions performed by these devices, modules, or units.

It should be noted that references to "one" or "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be interpreted as "one or more" unless the context clearly indicates otherwise.

As can be seen from the above background, in the field of process industry, a configuration engineer may configure a monitoring variable corresponding to each device using configuration software in a distributed control system (Distributed Control System, DCS) according to a plant device condition, and issue the configured monitoring variable.

However, this monitoring method can only monitor a single variable, and in the actual application process, the monitored variable focused by the operator and the variable focused by the configuration engineer may be different, so that it is difficult for the operator to identify potential problems and emergencies according to the issued single variable, and corresponding measures cannot be timely taken for the equipment with faults. And after the corresponding monitoring conversion is issued, if the modification is required, the modification can be performed after the corresponding flow approval, so that the operation is complex and the efficiency is low.

Therefore, the invention provides the DCS-based early warning method and system, and a user can configure corresponding temporary alarm conditions and variables and variable values thereof on a temporary alarm monitoring interface according to each variable of interest of equipment to be monitored, a configuration engineer is not required to configure a single monitoring variable, and the flexibility and adaptability of temporary alarm configuration are improved; the DCS-based early warning system can generate corresponding temporary alarm configuration according to temporary alarm conditions configured by a user based on the temporary alarm monitoring interface, each variable and variable values thereof, and detect variable values of each variable in the temporary alarm configuration; when the variable value of any variable is detected to be changed, a corresponding change notification is generated, then whether the current variable value of each variable in the change notification meets a temporary alarm condition is judged, and finally temporary alarm data of equipment to be monitored are generated under the condition that the current variable value of each variable meets the temporary alarm condition, so that a user can quickly know the abnormal condition of the equipment to be monitored, and take corresponding measures in time, and the problems that an operator is difficult to identify potential problems and emergency conditions according to the issued single variable and cannot take corresponding measures to the equipment with faults in time in the prior art are solved.

Referring to fig. 1, a schematic structural diagram of a DCS-based early warning system according to an embodiment of the present invention is shown, where, as shown in fig. 1, the DCS-based early warning system at least includes a main server and an operation station; the operation station comprises a temporary alarm monitoring interface and a temporary alarm service;

and the temporary alarm service is used for sending a corresponding temporary alarm data subscription request to the main server. The temporary alarm service data subscription request indicates a temporary alarm configuration corresponding to the equipment to be monitored; the temporary alarm configuration is generated according to temporary alarm conditions configured by a user based on a temporary alarm monitoring interface and various variables and variable values thereof; the variables are the individual variables associated with the device to be tested.

The real-time data service is used for detecting variable values of various variables in the temporary alarm configuration indicated by the temporary alarm data subscription request when the temporary alarm data subscription request sent by the temporary alarm service is received; when the variable value of any variable is detected to be changed, sending the generated change notification to a temporary alarm service; wherein the change notification includes the current variable value for each variable.

The temporary alarm service is used for judging whether the current variable values of all variables meet the temporary alarm condition or not when receiving the change notification sent by the main server; and if the current variable values of the variables meet the temporary alarm conditions, generating temporary alarm data of the equipment to be monitored.

In the embodiment of the invention, the main server can generate the temporary alarm configuration corresponding to the equipment to be monitored according to the temporary alarm condition and each variable and the variable value thereof related to the equipment to be monitored configured by the user based on the temporary alarm monitoring interface, a configuration engineer is not required to configure a single monitoring variable, even if the configuration engineer is required to be modified later, the process approval is not required, and the flexibility, the adaptability and the efficiency of the temporary alarm configuration are improved; the main server can detect variable values of all variables in the temporary alarm configuration indicated by the temporary alarm data subscription request sent by the temporary alarm service, and when the variable value of any variable is detected to be changed, the generated change notification is used for generating the temporary alarm service so as to judge whether the current variable value of each variable in the change notification meets the temporary alarm condition or not, and finally, under the condition that the current variable value of each variable meets the temporary alarm condition, the temporary alarm data of the equipment to be monitored is generated, so that a user can quickly know corresponding abnormal conditions and timely take corresponding measures, and the problem that an operator is difficult to identify potential problems and emergency conditions according to the issued single variable in the prior art and cannot timely take corresponding measures on the equipment with faults is solved.

In this embodiment, referring to fig. 2 in conjunction with fig. 1, a DCS is deployed on a main server, and includes a user data service, a user login service, and a real-time data service.

Optionally, the real-time data service is configured to detect variable values of variables in a temporary alarm configuration indicated by the temporary alarm data subscription request when receiving the temporary alarm data subscription request sent by the temporary alarm service; when the variable value of any variable is detected to be changed, the generated change notification is sent to the temporary alarm service.

Optionally, the real-time data service is further configured to sequentially add temporary alarm data to the temporary alarm queue; the temporary alarm queue comprises at least one temporary alarm data, so that an operation station obtains forefront temporary alarm data which is not displayed from the temporary alarm queue, and displays the forefront temporary alarm data which is not displayed, and a user can know the abnormal condition of equipment to be monitored more clearly.

Optionally, the user data service is used for responding to temporary alarm configuration operation of the equipment to be monitored by the user based on the temporary alarm monitoring interface, and acquiring alarm conditions and various variables and variable values thereof corresponding to the temporary alarm configuration operation; and generating a temporary alarm configuration corresponding to the equipment to be monitored according to the alarm conditions, the variables and the variable values thereof.

In the embodiment of the invention, a user can configure corresponding temporary alarm conditions and variables and variable values thereof on the temporary alarm monitoring interface according to the variables focused by the equipment to be monitored, and when the user data service detects corresponding temporary alarm configuration operation, the user data service can generate corresponding temporary alarm configuration according to the temporary alarm conditions and the variables and the variable values thereof configured by the user, a configuration engineer is not required to configure a single monitoring variable, and the flexibility and the adaptability of the temporary alarm configuration are improved.

Optionally, the user data service is further configured to respond to an update operation of the user on the temporary alarm configuration based on the temporary alarm monitoring interface, and obtain a target temporary alarm condition and/or a target variable and a variable value thereof corresponding to the update operation; updating the temporary alarm condition and/or the corresponding variable and variable value thereof in the temporary alarm configuration by utilizing the target temporary alarm condition and/or the target variable and variable thereof; and replacing the temporary alarm configuration indicated by the temporary alarm data subscription request by using the updated temporary alarm configuration.

In the embodiment of the invention, a user can correspondingly change the temporary alarm configuration configured before on the temporary alarm monitoring interface according to each variable of interest of equipment to be monitored, and when the user data service detects corresponding updating operation, the user data service can directly update the temporary alarm condition and/or the corresponding variable and the variable value in the temporary alarm configuration according to the target temporary alarm condition and/or the target variable and the variable value corresponding to the updating operation, so that flow audit is not needed, the operation is not seen, and the efficiency is high.

Optionally, the user login service is configured to generate a corresponding user login change message when detecting that the user login state corresponding to the temporary alarm configuration is changed, and execute the real-time data service.

In the embodiment of the invention, each user can switch the user corresponding to the temporary alarm configuration on the DCS-based early warning system by logging in the DCS-based early warning system, namely, the user logging state of the temporary alarm configuration is changed, and the user logging service detects whether the user logging state of the temporary alarm configuration is changed or not in real time; when the user login state corresponding to the temporary alarm configuration is detected to be changed, a corresponding user login change message can be generated, real-time data service is executed to detect whether the corresponding equipment to be monitored has faults, if yes, corresponding temporary alarm data are generated, the temporary alarm data are displayed through an operation station, so that a user can know the fault condition of the equipment to be monitored in time, and corresponding measures can be taken in time.

Further, referring to fig. 3 in conjunction with fig. 1, the DCS-based early warning system further includes a slave server; the structure of the slave server is the same as that of the master server; the slave server also comprises corresponding real-time data service, user data service and user login service.

The master server is used for synchronizing the temporary alarm data subscription request to the slave server; when the operation state of the server is detected to be abnormal, the slave server and the master server are subjected to master-slave switching, so that the slave server is changed to the master server, and the master server is changed to the slave server.

When the temporary alert service transmits the temporary alert data subscription request to the master server, the temporary alert data subscription request may be transmitted to the slave server.

In the embodiment of the invention, the master server can perform master-slave switching with the slave server under the condition that the master server detects that the master server has an abnormality, so that the slave server is switched into the master server, and the corresponding process is continuously executed, so that the early warning process is not interrupted due to the abnormality of the master server.

Based on the DCS-based early warning system shown in FIG. 1, correspondingly, the embodiment of the invention provides a DCS-based early warning method, as shown in FIG. 4, the DCS-based early warning method is applied to the DCS-based early warning system shown in FIG. 1, and the method specifically comprises the following steps:

s401: detecting variable values of variables in the temporary alarm configuration indicated by the temporary alarm data subscription request; the temporary alarm configuration is generated according to temporary alarm conditions configured by a user based on a temporary alarm monitoring interface and various variables and variable values thereof; the variable is a variable related to the device to be tested.

In the embodiment of the invention, a temporary alarm monitoring interface exists on an operation station of the DCS-based early warning system, and a user can input a plurality of variables and corresponding temporary alarm conditions concerned by equipment to be monitored on the temporary alarm monitoring interface and click a corresponding temporary alarm configuration key to perform corresponding temporary alarm configuration operation; when the DCS system detects the temporary alarm configuration operation of the user, the temporary alarm configuration corresponding to the equipment to be monitored is generated according to various variables and temporary alarm conditions input by the user.

Optionally, according to the temporary alarm condition configured by the user based on the temporary alarm monitoring interface and each variable and its variable value, the process of generating the temporary alarm configuration may specifically be: detecting whether a temporary alarm configuration operation performed by a user based on a temporary alarm monitoring interface exists currently or not in real time through user data service in a main server; when detecting the temporary alarm configuration operation performed by the user based on the temporary alarm monitoring interface, responding to the temporary alarm configuration operation performed by the user based on the temporary alarm monitoring interface, and acquiring alarm conditions, variables and variable values corresponding to the temporary alarm configuration operation; and generating a temporary alarm configuration corresponding to the equipment to be monitored according to the alarm conditions, the variables and the variable values thereof.

In some embodiments, when the user data service detects that the user inputs the PV pin value of the bit number a, the PV pin value of the bit number B, and the difference between the PV pin value of the bit number a and the PV pin value of the bit number B of the device to be monitored on the temporary alert monitoring interface is greater than 10 to trigger the temporary alert, a corresponding temporary alert configuration may be generated according to the PV pin value of the bit number a, the PV pin value of the bit number B, and the corresponding alert condition (the difference between the PV pin value of the bit number a and the PV pin value of the bit number B is greater than 10 to trigger the temporary alert). The temporary alarm configuration of the device to be monitored may be a.pv-b.pv >10.

In other embodiments, when the user data service detects that the user inputs that the PV pin value of the bit number a of the device to be detected is greater than the pin value of the bit number B on the temporary alarm monitoring interface to trigger the temporary alarm, a corresponding temporary alarm configuration may be generated according to the PV pin value of the bit number a, the PV pin value of the bit number B, and a corresponding alarm condition (the PV pin value of the bit number a is greater than the pin value of the bit number B to trigger the temporary alarm). The temporary alarm configuration of the device to be monitored may be a.pv > b.pv.

In the process of specifically executing step S401, after the user data service generates a corresponding temporary alarm configuration according to the temporary alarm condition and each variable and its variable value related to the device to be monitored, the temporary alarm service may generate a corresponding temporary alarm data subscription request according to the temporary alarm configuration, and send the temporary alarm data subscription request to the real-time data service in the main server, so that the real-time data service detects the variable value of each variable in the temporary alarm configuration indicated by the temporary alarm data subscription request.

S402: when the change of the variable value of any variable is detected, a corresponding change notification is generated; wherein the change notification includes the current variable value for each variable.

In the specific execution of step S402, for any one variable in the temporary alarm configuration, if the real-time data service detects that the variable value of any one variable is changed, the current variable value of each variable in the temporary alarm configuration may be obtained, and a corresponding change notification may be generated according to the current variable value of each variable.

For example, assume that the pin value of A.PV is 20 and the pin value of B.PV is 10 in the temporary alarm configuration A.PV-B.PV > 10; if the real-time data service detects that the PV pin value of the bit number a is 30, it is explained that when the detected PV pin value of the bit number a is different from the set pin value, it is possible to determine that the PV pin value of the bit number a has been changed, and then the current PV pin value (30) of the bit number a and the current PV pin value (10) of the bit number B can be obtained.

S403: and judging whether the current variable value of each variable meets the temporary alarm condition. If the current variable value of each variable satisfies the temporary alarm condition, step S404 is executed.

In the specific execution process of step S403, after generating a corresponding change notification according to the current variable value of each variable through the real-time data service, the generated change notification may be sent to the temporary alarm service, so that the temporary alarm service determines whether the current variable value of each variable meets the temporary alarm condition; if the current variable value of each variable satisfies the temporary alarm condition, step S304 is executed. If the current variable values of the respective variables do not satisfy the temporary alarm condition, the process returns to step S401.

In some embodiments, as shown in fig. 5, if the temporary alarm configuration is a.pv-b.pv >10, the temporary alarm service may calculate a difference between the current PV pin value of the bit number a and the current PV pin value of the bit number B in the change notification after receiving the corresponding change notification, and determine whether the difference is greater than 10; if the difference value is greater than 10, indicating that the corresponding equipment to be monitored is abnormal, generating corresponding temporary alarm data, and sequentially adding the temporary alarm data into a temporary alarm queue; if the difference is not greater than 10, it indicates that the corresponding device to be monitored has no abnormality, and then the execution step S301 may be returned.

In other embodiments, if the temporary alert configuration is a.pv > b.pv, the temporary alert service may directly determine whether the current PV pin value of the bit number a in the change notification is greater than the current PV pin value of the bit number B after receiving the corresponding change notification; if the data is larger than the preset value, indicating that the corresponding equipment to be monitored is abnormal, and further generating corresponding temporary alarm data; if not greater than 10, it indicates that the corresponding device to be monitored has no abnormality, and then the step S401 may be executed again.

The foregoing is merely a preferred manner of determining whether the current variable value of each variable satisfies the corresponding temporary alarm condition provided by the present invention, and the embodiments of the present application are not limited herein.

S404: and generating temporary alarm data of the equipment to be monitored.

In the process of specifically executing step S404, when the temporary alarm service satisfies the corresponding temporary alarm condition according to each variable in the change notification, corresponding temporary alarm data may be generated.

S405: sequentially adding the temporary alarm data into a temporary alarm queue; wherein the temporary alarm queue comprises at least one temporary alarm data.

In the specific execution process of step S405, after the temporary alarm data of the device to be monitored is generated by the temporary alarm service, the temporary alarm data may be further added into the temporary alarm queue sequentially by the temporary alarm service, the forefront temporary alarm data and the non-displayed temporary alarm data are obtained from the temporary alarm queue, and the forefront temporary alarm data and the non-displayed temporary alarm data are displayed on the temporary alarm monitoring interface until the non-displayed temporary alarm data do not exist in the temporary alarm queue.

S406: and acquiring forefront and non-displayed temporary alarm data from the temporary alarm queue, and displaying the forefront and non-displayed temporary alarm data until the non-displayed temporary alarm data does not exist in the temporary alarm queue.

The invention provides a DCS-based early warning method and system, which can enable a user to configure corresponding temporary alarm conditions and variables and variable values thereof on a temporary alarm monitoring interface according to each variable of interest of equipment to be monitored, a configuration engineer is not required to configure a single monitoring variable, and flexibility and adaptability of temporary alarm configuration are improved; the DCS-based early warning system can generate corresponding temporary alarm configuration according to temporary alarm conditions configured by a user based on the temporary alarm monitoring interface, each variable and variable values thereof, and detect variable values of each variable in the temporary alarm configuration; when the variable value of any variable is detected to be changed, a corresponding change notification is generated, then whether the current variable value of each variable in the change notification meets a temporary alarm condition is judged, and finally temporary alarm data of equipment to be monitored are generated and displayed under the condition that the current variable value of each variable meets the temporary alarm condition, so that a user can quickly know the abnormal condition of the equipment to be monitored, and take corresponding measures in time, and the problems that an operator is difficult to identify potential problems and emergency conditions according to the issued single variable and cannot take corresponding measures to the equipment with faults in time in the prior art are solved.

Furthermore, on the basis of the DCS-based early warning method provided by the embodiment of the present invention, the method may further include: responding to the updating operation of the user on the temporary alarm configuration based on the temporary alarm monitoring interface, and acquiring a target temporary alarm condition and/or a target variable and a variable value thereof corresponding to the updating operation; updating the temporary alarm condition and/or the corresponding variable and variable value thereof in the temporary alarm configuration by utilizing the target temporary alarm condition and/or the target variable and variable thereof; and replacing the temporary alarm configuration indicated by the temporary alarm data subscription request with the updated temporary alarm configuration.

In this embodiment, if the user wants to change the temporary alarm configuration configured before, the user can directly change the temporary alarm configuration configured before through the temporary alarm monitoring interface on the DCS-based early warning system, so that the user does not need to perform process approval, and the operation is simple and the efficiency is high.

Specifically, the user may input the temporary alarm condition and/or variable and its variable value (for convenience of distinction, the temporary alarm condition input by the user when modifying the temporary alarm configuration is referred to as a target temporary alarm condition, and the variable input by the user when modifying the temporary alarm configuration is referred to as a target variable) in the temporary alarm monitoring interface of the operation station, and click on the corresponding update key to perform the corresponding update operation.

When the user data service in the main server detects the updating operation of the user on the temporary alarm configuration based on the temporary alarm monitoring interface, the updating operation of the user on the temporary alarm configuration based on the temporary alarm monitoring interface can be responded, and the target temporary alarm condition and/or the target variable and the variable value thereof corresponding to the updating operation are obtained; and updating the temporary alarm condition and/or the corresponding variable and variable value thereof in the temporary alarm configuration by utilizing the target temporary alarm condition and/or the target variable and variable thereof.

In some embodiments, after the user data service completes updating the temporary alarm configuration, a corresponding temporary alarm configuration change message may be generated, and the temporary alarm configuration change message is sent to the temporary alarm service, so that the temporary alarm service determines whether the current variable value of each variable in the temporary alarm configuration change message meets the alarm condition in the updated temporary alarm configuration; if yes, corresponding temporary alarm data can be generated.

Meanwhile, the temporary alarm service can also change the temporary alarm configuration indicated in the corresponding temporary alarm data subscription request according to the temporary alarm configuration change message, namely, the indicated temporary alarm configuration in the temporary alarm data subscription request is changed into the updated temporary alarm configuration, and the changed temporary alarm data subscription request is sent to the main server, so that the real-time data service in the main server carries out corresponding detection according to each variable in the temporary alarm configuration indicated in the received temporary alarm data subscription request.

For example, assuming that the temporary alarm configuration is a.pv-b.pv >10, if the user wants to modify the temporary alarm configuration, the user may modify the temporary alarm configuration in the temporary alarm monitoring interface of the operation station to a difference between the PV pin value of the bit number a and the pin value of the bit number B is greater than 20, trigger the temporary alarm, and click the corresponding update key to perform the corresponding update operation.

When detecting the updating operation of the temporary alarm configuration based on the temporary alarm monitoring interface by the user data service, the user data service can respond to the updating operation of the temporary alarm configuration based on the temporary alarm monitoring interface by the user to acquire a target temporary alarm condition corresponding to the updating operation (the difference value between the PV pin value of the bit number A and the pin value of the bit number B is greater than 20 to trigger the temporary alarm); and updating the temporary alarm condition in the temporary alarm configuration by utilizing the target temporary alarm condition (the difference value between the PV pin value of the bit number A and the pin value of the bit number B is larger than 20 to trigger temporary alarm), so that the updated temporary alarm configuration is A.PV-B.PV >20.

After the corresponding temporary alarm configuration update is completed through the user data service, a corresponding temporary alarm configuration change message can be generated, the temporary alarm configuration change message is sent to the temporary alarm service, so that the temporary alarm service changes the temporary alarm configuration indicated in the corresponding temporary alarm data subscription request according to the temporary alarm configuration change message, namely, the indicated temporary alarm configuration (A.PV-B.PV > 10) in the temporary alarm data subscription request is changed into an updated temporary alarm configuration (A.PV-B.PV > 20), the changed temporary alarm data subscription request is sent to the main server, and the real-time data service correspondingly detects each variable in the temporary alarm configuration indicated in the temporary alarm data subscription request sent by the temporary alarm service.

Furthermore, on the basis of the DCS-based early warning method provided by the embodiment of the present invention, the method may further include: when the user login state corresponding to the temporary alarm configuration is detected to be changed, a corresponding user login change message is generated, and the step of detecting the variable values of all variables in the temporary alarm configuration indicated by the temporary alarm data subscription request is executed.

It should be noted that, the temporary alarm data subscription request may also indicate that there is a login user corresponding to the temporary alarm configuration.

In the actual application process, the login user of the temporary alarm configuration indicated in the temporary data subscription request can be detected through the user login service in the main server, when the login user of the temporary alarm configuration is detected to change, the user login state corresponding to the temporary alarm configuration can be determined to change, further corresponding user tired change information can be generated, the user login change information is sent to the real-time data service, the real-time data service detects the variable value of each variable in the temporary alarm configuration indicated by the temporary alarm data subscription request, and when the variable value of any variable is detected to change, the generated change notification is sent to the temporary alarm service; wherein the change notification includes a current variable value for each variable; judging whether the current variable values of all variables meet the temporary alarm conditions or not through the temporary alarm service; if the current variable value of each variable meets the temporary alarm condition, generating temporary alarm data of the equipment to be monitored, and storing the temporary alarm data into a temporary alarm queue, so that the operation station can acquire corresponding temporary alarm data from the temporary alarm queue, and displaying the corresponding temporary alarm data on a temporary alarm monitoring interface.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a system or system embodiment, since it is substantially similar to a method embodiment, the description is relatively simple, with reference to the description of the method embodiment being made in part. The systems and system embodiments described above are merely illustrative, wherein elements illustrated as separate elements may or may not be physically separate, and elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. A DCS-based early warning method, characterized by being applied to a DSC-based early warning system, comprising:

and if the current variable value of each variable meets the temporary alarm condition, generating temporary alarm data of the equipment to be monitored.

2. The method of claim 1, wherein said generating said temporary alert configuration based on a temporary alert condition configured by a user based on a temporary alert monitoring interface and respective said variables and their variable values, comprises:

3. The method according to claim 2, wherein the method further comprises:

4. The method according to claim 1, wherein the method further comprises:

5. The method according to claim 1, wherein the method further comprises:

and acquiring forefront and non-displayed temporary alarm data from the temporary alarm queue, and displaying the forefront and non-displayed temporary alarm data until the non-displayed temporary alarm data does not exist in the temporary alarm queue.

6. The utility model provides a warning system based on DCS, its characterized in that, warning system based on DCS includes at least operation station and main server, main server includes real-time data service, the operation station includes interim alarm service and interim alarm monitoring interface, the method includes:

7. The system of claim 6, wherein the primary server comprises a user data service;

8. The system of claim 7, wherein the user data service is further configured to:

9. The system of claim 6, wherein the host server further comprises a user login service;

10. The system of claim 6, wherein the DCS-based early warning system further comprises a slave server; the structure of the slave server is the same as that of the master server;