CN115599789A - Industrial control baseline auditing method and system - Google Patents

Abstract

The invention relates to the technical field of data management, and provides an industrial control baseline auditing method and system. The method comprises the following steps: s1: detecting the change of the current configuration data, generating a baseline of the current configuration data after detecting the change of the current configuration data, collecting the current configuration data, storing the current configuration data in the baseline, and adding the baseline to a baseline library of an industrial control system; s2: and auditing the change of the historical configuration data, acquiring two baselines which need to be compared in the base line library, comparing the historical configuration data stored in the two baselines, and displaying a comparison result. According to the technical scheme, the control system data can be read, the changed base line can be recorded, the historical audit record details can be checked, the comparison of any base line can be supported, and the base line and the audit management of the control system data can be realized.

Description

An industrial control baseline audit method and system

technical field

The present invention relates to the technical field of data management, in particular to the technical field of control system data management in industrial control systems, specifically an industrial control baseline audit method and system.

Background technique

With the expansion of industrial scale and the complexity of control system data, traditional control system data is only maintained by a small number of professional implementation personnel, and it is difficult to train professionals, resulting in increased time costs, material costs, and labor costs. Industrial efficiency has fallen into a bottleneck and scale expansion restricted. At the same time, the project implementers may not be able to know the last operation of themselves or others during the implementation process, nor can they know the control system data changes corresponding to the operations, let alone all the control system data changes on the time axis, which will cause the control system Data management confusion, and lead to unknown hidden dangers.

For example: after the implementer modified and released the control system data, he found that it did not meet expectations, but he could not know the change of control system data caused by this operation, which made it very difficult to correct it to the expectation. Another example: after the operation of the implementer A is released, but the implementer B does not know the operation of A, if there is a certain conflict between the tasks of the two, it will inevitably cause data disorder.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide an industrial control baseline audit method and system, which can read the control system data and record the changed baseline, provide a view of the details of the historical audit records, and support the comparison of any baseline. to baseline and audit management of control system data.

Above-mentioned purpose of the invention of the present invention is achieved through the following technical solutions:

An industrial control baseline audit method, comprising the following steps:

S1: Detect the change of the current configuration data. When the change of the current configuration data is detected, generate the baseline of the current configuration data, collect the current configuration data and store it in the baseline, and store the current configuration data in the baseline. The baseline is added to a baseline library of the industrial control system;

S2: Audit the changes of historical configuration data, obtain the two baselines that need to be compared in the baseline library, compare the historical configuration data stored in the two baselines, and display Compare the results.

Further, step S1 is specifically:

S11: Detect the data collection operation of the implementer, and store the current configuration data as temporary version data after the data collection operation is detected;

S12: Obtain the last baseline in the baseline library, and compare the temporary version data with the last baseline according to the pre-configured change entries;

S13: When there is a data change in the comparison result between the temporary version data and the last baseline, generate the baseline of the current configuration data, collect the current configuration data and store it in the baseline, adding the baseline to the baseline library of the industrial control system, otherwise discarding the temporary version data and not generating the baseline of the current configuration data;

S14: During the operation of the industrial control system, repeat steps S11-S13 to add the baseline to the baseline database.

Further, the baselines in the baseline library have a time axis sorted by time without inheritance relationship, and new baselines are added in the baseline library in time order.

Further, in step S1, it also includes:

According to the data storage rules in the baseline library, perform data classification and integration on the collected current configuration data, and after classification and integration, the current configuration that matches the data storage rules in the baseline library Data is stored into the baseline, and the baseline is added to the baseline library of the industrial control system.

Further, the data storage specification in the baseline library divides the configuration data into five categories:

Bit number: including module input AI, module output AO, input DI, output DO, custom analog NA, custom switch ND, custom integer NN, page-to-page exchange analog quantity PA, page-to-page exchange switch Quantity PD, the inter-page exchange integer quantity PN including the bit number, and when determining the object relationship attribute, use the bit number as the object, and use the self-variable attribute including the bit number description as the bit number No. change entry;

Function block: the function block including the ASH high-selection function block and the MANUAL hand-operated function block, and when determining the object relationship attribute, use the function block as an object, and use the function block itself including the function block type Change attributes as the change entry of the function block;

Program logic: the program logic including function block diagram FBD, ladder diagram LD, and sequential function chart SFC. The logic program contains the wiring relationship between the function block and the bit number, and when determining the object relationship attribute , taking the program as an object, and expanding it downwards into function block pins and tag block pin objects, using the variable attributes of the function block pins and the tag block pin objects as change items;

Flowchart: Including the general flowchart and pop-up flowchart in the monitoring configuration, and when determining the object relationship attributes, use the flowchart as an object, and expand it downwards into graphic objects and dynamics, and use the variable of the object itself properties as change entries;

Trend graph: It includes the real-time and historical trend screens of the tag in the monitoring configuration, and when determining the object relationship attribute, the trend graph is used as the object, and the variable attribute of the object itself is used as the change item.

Further, in step S2, audit the historical configuration data, specifically:

S21: Divide the audit data into an audit tree according to the objects stored in the baseline, where the audit tree is a node tree of a flow graph of the program logic;

S22: Select the graphic of the program logic as the model of the change diagram, use the bit number and the function block object as nodes in the change diagram, and display the bit number and the function block on the graph Pin relationship, pin change relationship, self-property change relationship;

S23: Blending the bit number and the configuration data of the function block into the nodes of the change graph;

S24: Based on each of the nodes, query the preceding nodes of the two baselines that need to be compared from the leading pins of the current node, and determine the bit numbers and the function blocks in the two baselines Pin relationship, pin change relationship, and self-attribute change relationship, using different forms of wiring on the change graph to represent pin change relationships including addition, deletion, and unchanged, and displaying below the nodes including Changes in node data including addition, deletion, and modification;

S25: Find the node whose front pin is the current node from all the nodes, which is the post node of the current node;

S26: Steps S24 and S25 are repeated to generate the change graph expressing complete node connection logic.

Further, the industrial control baseline audit method also includes: establishing a display page of the baseline library, displaying all the baselines stored in the baseline library; including querying, marking key versions, deleting Operation buttons including baseline, baseline comparison, and comparison result query.

A system for performing an industrial control baseline audit method as described above, comprising:

The baseline storage module is used to detect the change of the current configuration data. When the change of the current configuration data is detected, the baseline of the current configuration data is generated, and the current configuration data is collected and stored in the In the baseline, the baseline is added to the baseline library of the industrial control system;

The baseline audit module is used to audit the changes of historical configuration data, obtain the two baselines that need to be compared in the baseline database, and compare the historical configuration data stored in the two baselines Yes, and display the comparison results.

A computer device comprising a memory and one or more processors, the memory storing computer code which, when executed by the one or more processors, causes the one or more processors to perform As above method.

A computer-readable storage medium, the computer-readable storage medium stores computer codes, and when the computer codes are executed, the above method is executed.

Compared with the prior art, the present invention includes at least one of the following beneficial effects:

By providing an industrial control baseline audit method, including steps: S1: Detect changes in the current configuration data, when the changes in the current configuration data are detected, generate a baseline of the current configuration data, and collect all The current configuration data is stored in the baseline, and the baseline is added to the baseline library of the industrial control system; S2: Audit the change of the historical configuration data, and obtain the two items that need to be compared in the baseline library. compare the historical configuration data stored in the two baselines, and display the comparison results. Based on the above technical solution, the present invention can read the control system data and record the changed baseline, provide the viewing of the details of the historical audit records, and support the comparison of any baseline, so as to realize the baseline and audit management of the control system data.

Description of drawings

Fig. 1 is the overall schematic diagram of a kind of industrial control baseline audit method of the present invention;

Fig. 2 is the overall flowchart of a kind of industrial control baseline auditing method of the present invention;

Fig. 3 is the specific example schematic diagram of program logic-function block bit number and its pin parameter of the present invention;

Fig. 4 is a program logic diagram before modification in the second embodiment of the present invention;

Fig. 5 is a program logic diagram after modification in the second embodiment of the present invention;

FIG. 6 is a schematic diagram of a display interface of an audit tree and a change graph in the second embodiment of the present invention;

Fig. 7 is a schematic diagram of an interface shown to implementers in the third embodiment of the present invention;

FIG. 8 is an overall schematic diagram of an industrial control baseline audit system of the present invention.

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and/or groups thereof.

The method of control system baseline audit is to make a version archive for the release of changes in the data of the entire control system, which is convenient for users to manage data on the time axis, solves the problem of difficult data maintenance, lowers the maintenance threshold, and reduces the cost of factory scale expansion .

The method of the present invention mainly has the following advantages: it supports configuration difference comparison; the object-based configuration difference display method breaks the tradition of only integrating data in the configuration, and can accurately locate the entry, overview configuration changes, and make configuration changes easy The display is more humane, intuitive, vivid and specific.

Explanation of terms involved in the present invention:

Control system/Industrial Control System (ICS): A control system used for industrial process control, which has the functions of collecting production equipment data, operating control logic, and managing production equipment.

Configuration data: In order to realize the data acquisition and control of production equipment, the control system needs to preset the simulation data of the production equipment, write the control logic program and other pre-set data, these data are called configuration data.

Baseline: A single version archive of configuration data.

Audit: The identification of changes to configuration data.

Controller: A digital logic controller used for automatic control, which can load control instructions into memory for storage and execution at any time.

Control program: A method used to define the control logic inside the control system. The control logic can be defined graphically, and the control system can perform calculations on these corresponding logics and perform further processing.

Bit number: the data source or output source in the control system. The data of the instrument hardware in the control system is connected to the controller through the hardware connection. The bit number represents the input data of the instrument or the data to be output to the instrument.

Function block: the operation block in the control program in the control system, the user realizes a specific function, and has various types. For example, the ADD function block is used to perform an addition operation on a data source.

Predecessor node: the node that is input to the current node.

Post node: the node to which the current node outputs.

Node: When the control program is abstracted into a graph, the bit number and the function block are displayed as several nodes, and the node refers to the bit number or the function block.

Pin: A specific functional value in a node.

The definition of the baseline management model of the present invention: select the linear version management model, that is, a simple model arranged in the order of appearance of the versions. A version set (baseline) of an industrial control project forms a version set (baseline library). The elements in the version set are sorted by time, but there is no inheritance relationship. New elements can only be added later, and all versions can be read and written.

The baseline management method of the present invention: the limited record version method is selected, all versions store version data completely, there is no distinction between predecessors and successors, and a single project is only allowed to store a limited number of baseline data, except for implementing personnel who actively abolish some old baselines, generate If the limit is reached during the new baseline, some old baselines will also be abolished to reduce space consumption.

first embodiment

As shown in Figure 1 and Figure 2, the present embodiment provides a kind of industrial control baseline auditing method, comprises the following steps:

S1: Detect the change of the current configuration data. When the change of the current configuration data is detected, generate the baseline of the current configuration data, collect the current configuration data and store it in the baseline, and store the current configuration data in the baseline. The baseline is added to the baseline library of the industrial control system.

S2: Audit the changes of historical configuration data, obtain the two baselines that need to be compared in the baseline library, compare the historical configuration data stored in the two baselines, and display Compare the results.

Specifically, in this embodiment, step S1 is the step of baseline storage in the present invention, and step S2 is the step of baseline audit in the present invention. The baseline storage of step S1 and the baseline audit of step S2 will be described in detail below.

Step S1 baseline storage, specifically includes the following subdivision steps:

S11: Detect the data collection operation of the implementer, and store the current configuration data as temporary version data after the data collection operation is detected.

Because the implementation personnel will read and collect the data stored in the database of the industrial control system before the operation, whether they are viewing the data or adding, modifying or deleting the data, so we will implement the data The collection operation is used as the time node to trigger the generation of the baseline. When the implementer collects the data, the system will automatically read the current data and store it as a temporary version data.

S12: Obtain the last baseline in the baseline library, and compare the temporary version data with the last baseline according to the pre-configured change items.

Specifically, due to the current data read triggered by data collection, we have no way to predict whether the implementer has modified the data, so we need to obtain the last baseline in the baseline library, and compare the temporary version data with the last one in the baseline library data for comparison. The way of comparison is to judge the change of the configuration data according to the change identification rules pre-configured by the user.

S13: When there is a data change in the comparison result between the temporary version data and the last baseline, generate the baseline of the current configuration data, collect the current configuration data and store it in the baseline, Adding the baseline to the baseline library of the industrial control system, otherwise discarding the temporary version data and not generating the baseline of the current configuration data.

S14: During the operation of the industrial control system, repeat steps S11-S13 to add the baseline to the baseline database.

Specifically, during the operation of the entire industrial control system, it is necessary to continuously detect the operation of data collection by the implementers. When the data is updated, the current data will be generated as a baseline, stored in the baseline database, and added to the baseline database. The baseline has information such as time axis sorted by time, notes, operation history, etc., and supports deletion and modification. There is no inheritance relationship between different baselines, and new baselines are added in the baseline library in chronological order.

Further, in step S1, before generating the baseline, it also includes: performing data classification and integration on the collected current configuration data according to the data storage rules in the baseline database, and after classification and integration, it will be combined with the The current configuration data matching the data storage rule in the baseline library is stored in the baseline, and the baseline is added to the baseline library of the industrial control system.

Specifically, because the data storage rules of the data stored in the industrial control system are not necessarily the same as the data storage rules in the baseline library, and because the baseline library of the present invention is applicable to different industrial control systems, the data storage rules in different industrial control systems The data storage rules are not necessarily the same either. Therefore, before generating the baseline, we need to classify and integrate the collected current data according to the data storage rules in the baseline library, so as to adapt to the storage rules of the baseline library. In the following, the data storage rules in the baseline library will be described in detail.

Baseline storage rules: The data storage rules in the baseline library divide configuration data into five categories:

(1) Bit number: including module input AI, module output AO, input DI, output DO, custom analog NA, custom switch ND, custom integer NN, page-to-page exchange analog PA, page Exchange the bit number including the switch quantity PD and the integer amount PN between pages, and when determining the object relationship attribute, use the bit number as an object, and use the self-variable attribute including the bit number description as The change entry for the tag.

(2) Function block: described function block including ASH high-selection function block, MANUAL hand-operated device function block, and when determining object relationship attribute, with described function block as object, will include function block type The variable attribute of itself is used as the change item of the function block.

(3) Program logic: the program logic comprising function block diagram FBD, ladder diagram LD, and sequential function chart SFC, the logic program contains the wiring relationship between the function block and the bit number, and determines the object For relationship attributes, take the program as an object and expand it downwards into function block pins and tag block pin objects, and use the variable attributes of the function block pins and the tag block pin objects as change items .

As shown in Figure 3, it is a specific example of a program logic-function block bit number and its pin parameters. Specifically:

Smaller rectangular strips (such as AI00020003.PV) are tag nodes;

Larger rectangular blocks (such as the node marked p0081 in the lower left corner) are function block nodes;

The bar at the top of the function block node indicates the type of the function block. For example, ASH is written on the top of the p0081 node, and MANUAL is written on the top of the p0084 node, which means that the p0081 node is an ASH type function block, and the p0084 node is a MANUAL type. function block;

The ASH function block is a high-selection function block, which selects two inputs and selects the input of the high one for output. The MANUAL function block is a hand-operated function block, which can choose manual mode or automatic mode, and manually adjust the output value in manual mode. , in automatic mode, the output is adjusted according to the input value.

The channel connected to the outside shown in the middle of the function block is the pin of this function block, the one on the left is the input pin, and the one on the right is the output pin.

(4) Flowchart: Including the general flowchart and pop-up flowchart in the monitoring configuration, and when determining the object relationship attribute, take the described flowchart as an object, and expand it downwards into graphic objects and dynamics, and use the object's Self-mutable attributes act as change entries.

(5) Trend graph: including the real-time and historical trend screens of the bit numbers in the monitoring configuration, and when determining the object relationship attribute, the trend graph is used as the object, and the variable attribute of the object itself is used as the change item.

Step S2 baseline audit, specifically includes the following subdivided steps:

S21: Divide the audit data into an audit tree according to the objects stored in the baseline, where the audit tree is a node tree of a flow graph of the program logic. The node tree can quickly locate the nodes of the program flow graph, and its data and style are the presentation forms of the changed data.

S22: Among the five types of configuration data, select the graphic of the program logic as the model of the change graph, use the bit number and the function block object as nodes in the change graph, and display the graph on the graph The bit number and the pin relationship, pin change relationship, and self-attribute change relationship of the function block.

S23: Combine the bit number and the configuration data of the function block into the nodes of the change graph.

S24: Based on each of the nodes, query the preceding nodes of the two baselines that need to be compared from the leading pins of the current node, and determine the bit numbers and the function blocks in the two baselines Pin relationship, pin change relationship, self-attribute change relationship, on the change diagram, different forms of wiring (can be different colors, different thicknesses, different types of lines, etc.) The pin change relationship within the node, and the node data changes including addition, deletion, and change are displayed below the node.

S25: Find the node whose preceding pin is the current node from all the nodes, which is the succeeding node of the current node.

S26: Steps S24 and S25 are repeated to generate the change graph expressing complete node connection logic.

second embodiment

As shown in FIGS. 4-6 , this embodiment is a specific example of a graphical method for displaying program changes. Figure 4 is the program logic diagram before the change, Figure 5 is the program logic diagram after the change, and Figure 6 is a schematic diagram of the display interface of the audit tree and the change diagram.

Change Figure 4 to Figure 5, the existing changes are as follows:

The input pin IN1 of p0081 is connected to AI00020003.PV delete;

The input pin IN2 connection of p0081 is changed from AI00020004.PV to AI00020002.PV;

The input pin BKIN of p0081 is connected to AI00020001.PV newly added;

The input pin IN1 connection of p00811 is changed from AI00020005.PV to AI00020006.PV;

The input pin IN2 connection of p00811 was changed from AI00020006.PV to AI00020007.PV.

Figure 6 is a schematic diagram of the visual interface of the audit tree and change tree finally displayed to the implementer:

The left side is an expanded tree (audit tree), which represents different configuration data, in which the leaf nodes are objects, identified by domain address + station address + object name. For example, in [0.2]p0081, 0 is the domain address, 2 is the station address, and p0081 is the object name.

On the right side is the wiring relationship. Different forms of lines are used to distinguish the change of the wiring relationship. The thick solid arrow indicates addition, the dotted arrow indicates deletion, and the thin solid arrow indicates unchanged. At the same time, the change logo is used under the node, click Change logo, a pop-up box will pop up to display the specific change items. Due to the size of the attached drawings, it cannot be shown in the attached drawings. The specific content displayed is shown in Table 1 below, and the actual page will be displayed in the form of a pop-up window.

Table 1

third embodiment

As shown in FIG. 7 , this embodiment provides a schematic interface shown to implementers. Specifically: establish the display page of the baseline library, display all the baselines stored in the baseline library; include query, mark key version, delete baseline, baseline comparison, comparison result query in the display page Action button inside.

In the interface shown in Figure 7, implementers can perform the following operations:

(1) Query: Enter the query conditions to query the version.

按钮，为编写基线注释，记录为重点版本，(2) Mark the key version: click in the "Baseline Note" column

button, for writing baseline notes, recording for focused releases,

(2) Delete baseline: Click the "Delete" button in the "Operation Column" to delete the version data stored in the version repository.

(3) Baseline comparison: Click the "Adjacent Comparison" button in the "Operation" column to compare the selected configuration baseline with the previous baseline according to the collection time, or check two baselines in the list, and then click the upper comparison button

可查看上一次对比结果。(4) Click the button above

You can view the results of the last comparison.

Fourth embodiment

As shown in Figure 8, this embodiment provides a system for performing the industrial control baseline audit method as in the first embodiment, including:

The baseline storage module 1 is used to detect the change of the current configuration data. When the change of the current configuration data is detected, the baseline of the current configuration data is generated, and the current configuration data is collected and stored in the In the baseline, the baseline is added to the baseline library of the industrial control system;

The baseline audit module 2 is used to audit the changes of the historical configuration data, obtain the two baselines that need to be compared in the baseline library, and perform the audit on the historical configuration data stored in the two baselines. Compare and display the comparison results.

A computer-readable storage medium stores computer codes, and when the computer codes are executed, the above method is executed. Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Read Only Memory (ROM, Read Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.

The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of concise description, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

It should be noted that the above embodiments can be freely combined as required. The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. An industrial control baseline auditing method is characterized by comprising the following steps:

s1: detecting the change of the current configuration data, generating a baseline of the current configuration data after detecting the change of the current configuration data, collecting the current configuration data, storing the current configuration data in the baseline, and adding the baseline to a baseline library of an industrial control system;

s2: and auditing the change of the historical configuration data, acquiring two baselines which need to be compared in the baseline library, comparing the historical configuration data stored in the two baselines, and displaying a comparison result.

2. The industrial control baseline auditing method of claim 1, wherein step S1 specifically is:

s11: detecting data acquisition operation of an implementer, and storing the current configuration data as temporary version data after the data acquisition operation is detected;

s12: acquiring the last baseline in the baseline library, and comparing the temporary version data with the last baseline according to a preset change item;

s13: when the comparison result of the temporary version data and the last baseline has data change, generating the baseline of the current configuration data, collecting the current configuration data and storing the current configuration data in the baseline, adding the baseline into the baseline library of the industrial control system, and otherwise, abandoning the temporary version data and not generating the baseline of the current configuration data;

s14: repeating steps S11-S13 during operation of the industrial control system to add the baseline to the baseline library.

3. The industrial control baseline auditing method of claim 1, wherein said baselines in said baseline repository have a timeline sorted by time without inheritance, and new ones of said baselines are added to said baseline repository in chronological order.

4. The industrial control baseline auditing method of claim 1, further comprising, in step S1:

and classifying and integrating the acquired current configuration data according to the data storage rules in the baseline base, storing the current configuration data matched with the data storage rules in the baseline base into the baseline after classification and integration, and adding the baseline into the baseline base of the industrial control system.

5. The industrial control baseline auditing method of claim 4, wherein said data store rules in said baseline library classify configuration data into five categories:

bit number: the bit number comprises an analog-in AI, an analog-out AO, an analog-in DI, an analog-out DO, a custom analog quantity NA, a custom switching quantity ND, a custom integer quantity NN, an inter-page exchange analog quantity PA, an inter-page exchange switching quantity PD and an inter-page exchange integer quantity PN, and when the relation attribute of an object is determined, the bit number is used as the object, and the self variable attribute comprising the description of the bit number is used as the change item of the bit number;

function blocks: the function blocks comprise an ASH high-selection function block and a MANUAL operator function block, when the object relation attribute is determined, the function blocks are used as objects, and self variable attributes comprising the types of the function blocks are used as change items of the function blocks;

program logic: the program logic comprises a function block diagram FBD, a ladder diagram LD and a sequential function diagram SFC, the logic program internally comprises the wiring relation between the function block and the bit number, and when the object relation attribute is determined, the program is used as an object and is expanded downwards to be a function block pin and bit number block pin object, and the self-variable attribute of the function block pin and the bit number block pin object is used as a change item;

the flow chart is as follows: the method comprises the steps of monitoring a general flow chart and a pop-up flow chart in the configuration, taking the flow chart as an object when determining the relation attribute of the object, expanding the flow chart downwards to form a graphic object and a dynamic state, and taking the variable attribute of the object as a change item;

a trend graph: the method comprises the steps of monitoring real-time and historical trend pictures of the bit numbers in the configuration, and taking the trend graph as an object and taking the variable attribute of the object as a change item when determining the relation attribute of the object.

6. The industrial control baseline auditing method of claim 5, wherein in step S2, the historical configuration data is audited, specifically:

s21: dividing audit data into audit trees according to objects stored in the base line, wherein the audit trees are node trees of the flow graph of the program logic;

s22: selecting the graphics of the program logic as a model of a change graph, taking the bit number and the function block object as nodes in the change graph, and displaying the pin relation, the pin change relation and the self attribute change relation of the bit number and the function block on the graph;

s23: mashup the bit number and the configuration data of the function block into the node of the change graph;

s24: inquiring the preposed nodes of two baselines to be compared from the preposed pins of the current node based on each node, judging the pin relation, the pin change relation and the self attribute change relation of the bit numbers and the function blocks in the two baselines, adopting different forms of wiring on the change diagram to represent the pin change relation including new addition, deletion and invariance, and displaying the node data change conditions including new addition, deletion and change below the node;

s25: searching the nodes with leading pins as the current nodes from all the nodes, and using the nodes as the rear nodes of the current nodes;

s26: repeating steps S24 and S25, generating said change graph representing the complete node connection logic.

7. The industrial control baseline auditing method of claim 1, further comprising:

establishing a display page of the baseline library, and displaying all the baselines stored in the baseline library;

the display page comprises operation buttons including query, key version labeling, baseline deletion, baseline comparison and result comparison query.

8. A system for performing the industrial control baseline auditing method of claims 1-7, comprising:

the baseline storage module is used for detecting the change of the current configuration data, generating a baseline of the current configuration data after detecting the change of the current configuration data, collecting the current configuration data to be stored in the baseline, and adding the baseline to a baseline library of an industrial control system;

and the baseline auditing module is used for auditing the change of the historical configuration data, acquiring two baselines which need to be compared in the baseline library, comparing the historical configuration data stored in the two baselines and displaying a comparison result.

9. A computer device comprising memory and one or more processors, the memory having stored therein computer code that, when executed by the one or more processors, causes the one or more processors to perform the method of any of claims 1-7.

10. A computer readable storage medium storing computer code which, when executed, performs the method of any of claims 1 to 7.

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