CN107480224B - Device for realizing data sharing between configuration data of control station and third-party database - Google Patents
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Abstract
The invention provides a device for realizing data sharing between configuration data of a control station and a third-party database, which comprises a data source configuration module, a data source configuration module and a data source sharing module, wherein the data source configuration module is used for establishing a data source; the data table creating and configuring module is used for creating or configuring data tables of the database and the control station; the mapping function compiler provides self-defined mapping function compilation for a user; and the moving task creating and configuring module is used for creating or configuring the moving task, and a user can generate a moving task for starting and executing after selecting the moving direction, the data source and the corresponding data table, so that the configuration data of the control station and the third-party database are shared. The invention uses the database as a transfer to realize data interaction between the upper application system and the bottom control so as to realize the butt joint of the control layer and the application management layer.
Description
Technical Field
The invention relates to the technical field of industrial control, in particular to a device for realizing data sharing between configuration data of a control station and a third-party database.
Background
In the technical field of industrial control, the IAP software architecture cannot be docked with a relational database at present, so that docking of a control layer and an application management layer is difficult to realize.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a device for sharing configuration data of a control station with a third-party database, wherein the database is used as a relay to implement data interaction between an upper application system and a bottom control, that is, data interaction between heterogeneous systems.
The invention is realized by the following steps: a device for realizing data sharing between configuration data of a control station and a third-party database comprises:
the data source configuration module is used for creating a data source and comprises a database source and a control station source;
the data table creating and configuring module is used for creating or configuring a data table of the database and the control station, and comprises a definition table name, a table field name, a field data type and an address of writing an sql statement or each field corresponding to the control station, which needs to be executed by the database; in the execution process of the subsequent relocation task, if the database is read, the query sql statement is executed to obtain a data table; if the statement is written into the database, the data table provides parameter input for the sql submission statement; the data of the control station is read or written, the selected data table is used as a carrier for storing the data, and the fields of the data table are in one-to-one correspondence to the IO addresses of the designated control station;
the mapping function compiler provides self-defined mapping function compilation for a user;
and the relocation task creating and configuring module is used for creating or configuring the relocation task, and a relocation task can be generated for starting and executing after a user selects a relocation direction, a data source and a corresponding data table.
Furthermore, the invention can also comprise an IO variable creating and configuring module, which is used for configuring trigger IO, write-back IO, control IO and configuring a discrete data table;
the trigger IO is used for triggering data relocation through a trigger signal;
the write-back IO is used for writing back a primary trigger signal to the control station after the relocation is finished;
the control IO comprises a task control IO and an execution period control IO, and the task control IO respectively controls the data relocation state and the data relocation period of the task;
the discrete data table is used for storing address data which are assigned by the control station corresponding to each field in the data table, and the addresses are discrete addresses, namely, no relation exists between each address, and the addresses are distributed in a hash mode.
Further, the data table of the control station is divided into a continuous IO link data table and a discrete IO link data table, and the continuous IO link refers to that the target control station of the data table is a continuous IO address field; the discrete IO link refers to the migration of each field of the data table with the specified IO point address as the target.
Furthermore, the mapping function compiler provides a uniform interface function and declares a predefined function, a user only needs to write a function implementation body by himself, and an algorithm dynamic link library is generated for calling a subsequent relocation task after the user compiles successfully.
Further, the generated relocation task is displayed under the tree node of the relocation task, and the relocation of the data can be executed only by starting the created task subsequently.
Furthermore, a plurality of relocation tasks can be created in advance and then started to be executed simultaneously, a single relocation task is taken as an operation unit during execution, and each relocation task is executed by one thread; each relocation task comprises two tables, wherein one table is a table facing a database, the other table is a table facing a control station, and data in the table facing the control station are numerical data; and one of the two tables is determined as a source data table according to the type of the migrated task, the other table is used as a target data table, wherein the data of the target data table is always filled by the data of the data source table, and the conversion of the data type responsible for the 'source data table → target data table' is completed by a mapping function generated by the user through self compilation.
Furthermore, the relocation task creation and configuration module also allows a user to configure the control of the control station on the relocation task, including the execution period of the relocation task, the enabling/suspending of the relocation task, and the trigger signal for executing the relocation task.
The invention has the following advantages: the device of the invention provides a data source configuration module, a data table creation and configuration module, a mapping function compiler and a relocation task creation and configuration module, so that a user can realize mutual data relocation between a control station and a relational database in a configuration mode to realize sharing between data in the control station and data in the database. Therefore, data docking between the control layer and the application management layer is realized, and cross-platform application is realized through data relocation and sharing to a certain extent. Because the data type of the control station is a simple numerical value type, and most relational databases are complex data types, the invention can realize the conversion between the numerical value type and the complex data type through a customized mapping algorithm, and has higher degree of freedom and adaptability. In addition, a trigger signal that allows the control station to control the transfer task, such as an execution period of the transfer task, enabling/suspending of the transfer task, and execution of the transfer task, may be configured.
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The invention will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic block diagram of the transfer of the apparatus of the present invention.
FIG. 1a is a block diagram of the data migration process from a control station to a database according to the present invention.
FIG. 1b is a block diagram of the data migration process from the database to the control station according to the present invention.
FIG. 2 is an illustration of a main interface for implementing the apparatus of the present invention.
FIGS. 3 a-3 f are illustrations of configuration window interfaces for the process of creating a database source by the apparatus of the present invention.
Fig. 4a to 4c are illustrations of interface interfaces of a configuration window of a process of creating a control station source by the apparatus of the present invention.
Fig. 5a to 5c are diagrams illustrating a configuration window interface of a process of creating an IO variable by the apparatus of the present invention.
Fig. 6a to 6f are illustrations of configuration window interfaces of the process of creating a data table for a control station by the apparatus of the present invention.
Fig. 7a to 7e are illustrations of configuration window interfaces of the process of creating a database-oriented data table by the apparatus of the present invention.
Fig. 8a to 8b are illustrations of interface diagrams of a configuration window of a process of creating a mapping function by the apparatus of the present invention.
FIGS. 9a to 9c are illustrations of interface of configuration windows for creating a relocation task process according to the present invention.
FIGS. 10a to 10c are illustrations of the interface of the configuration window during the process of initiating the relocation task by the apparatus of the present invention.
Detailed Description
The device for realizing data sharing between the configuration data of the control station and the third-party database comprises:
the data source configuration module is used for creating a data source and comprises a database source and a control station source;
the data table creating and configuring module is used for creating or configuring a data table of the database and the control station, and comprises a definition table name, a table field name, a field data type and an address of writing an sql statement or each field corresponding to the control station, which needs to be executed by the database; in the execution process of the subsequent relocation task, if the database is read, the query sql statement is executed to obtain a data table; if the statement is written into the database, the data table provides parameter input for the sql submission statement; the data of the control station is read or written, the selected data table is used as a carrier for storing the data, and the fields of the data table are in one-to-one correspondence to the IO addresses of the designated control station; the data table of the control station is divided into a continuous IO link data table and a discrete IO link data table, and the continuous IO link refers to that the target control station of the data table is a continuous IO address field; the discrete IO link refers to the migration of each field of the data table with the specified IO point address as the target.
The mapping function compiler provides self-defined mapping function compilation for a user; the mapping function compiler provides a uniform interface function and declares a predefined function, a user only needs to write a function implementation body by himself, and an algorithm dynamic link library is generated for calling a subsequent relocation task after the user compiles successfully.
And the relocation task creating and configuring module is used for creating or configuring the relocation task, and a relocation task can be generated for starting and executing after a user selects a relocation direction, a data source and a corresponding data table. And after the migration task is generated, the generated migration task is displayed under the tree node of the migration task, and the migration of the data can be executed only by starting the created task subsequently. The method also allows a user to configure the control station to control the transfer task, including the execution period of the transfer task, the starting/suspending of the transfer task and the trigger signal for the execution of the transfer task.
The IO variable creating and configuring module is used for configuring trigger IO, write-back IO, control IO and a discrete data table; wherein the content of the first and second substances,
the trigger IO is used for triggering data relocation through a trigger signal;
the write-back IO is used for writing back a primary trigger signal to the control station after the relocation is finished;
the control IO comprises a task control IO and an execution period control IO, and the task control IO respectively controls the data relocation state and the data relocation period of the task;
the discrete data table is used for storing address data which are assigned by the control station corresponding to each field in the data table, the addresses are discrete addresses, and each address has no relation and is in hash distribution. It is distinguished from the continuous data sheet: the continuous data table refers to a section of continuous address space values of the data table corresponding to the control station, each data unit in the data table corresponds to the address data specified by the control station, and the addresses are continuous addresses, namely, each address is different by one address bit and are continuously distributed.
As shown in fig. 1, a plurality of relocation tasks may be created in advance and then started to be executed simultaneously, a single relocation task is used as an operation unit during execution, and each relocation task is executed by one thread; each relocation task comprises two tables, wherein one table is a table facing a database, the other table is a table facing a control station, and data in the table facing the control station are numerical data; and one of the two tables is determined as a source data table according to the type of the migrated task, the other table is used as a target data table, wherein the data of the target data table is always filled by the data of the data source table, and the conversion of the data type responsible for the 'source data table → target data table' is completed by a mapping function generated by the user through self compilation.
The migration tasks are mainly divided into two types, one is the migration task from the database → the control station ", the table facing the database is the source data table, the table facing the control station is the target data table, the other is the migration task from the control station → the database, the table facing the control station is the source data table, and the table facing the database is the target data table.
As shown in fig. 2 to 9c, the operation steps of sharing the configuration data of the control station with the third-party database by using the apparatus of the present invention are as follows:
step S1, creating a data source through a data source configuration module;
the data source comprises a database data source and a control station data source, and the data source is created to create a connection character string with the database or the control station. The creation mode can be entered into a right-key menu option of a node [ data source ] or [ database ] or [ control station ] in the left tree structure of fig. 2, and the created data is stored in a datasource table blade info.
(1) Create database data source (configure one SQL Server connection as an example):
selecting a node (database), popping up a menu shown in figure 3a by a right mouse button, clicking a 'new data source', popping up a configuration window shown in figure 3b, clicking a '. multidot.' button, popping up a data link attribute frame shown in figure 3c, selecting a corresponding drive (the drive of an SQL Server is selected here), switching to a connection option, configuring the name (available IP address) of a Server where the SQL database is located, the user name and password for logging in the database, selecting the name of the database to be connected, and clicking to determine after the test connection is successful. After the data source path is correctly configured, the data source path is obtained as shown in fig. 3e, and then the data source is named and then click-determined. The database data source just created will appear under the "database" node after success, as shown in FIG. 3 f.
(2) Creation of control station Source (configuration of an IAP Simu connection for example)
Selecting a node (control station), popping up a menu shown in figure 4a by a right mouse button, clicking a new data source, filling a data source name, selecting a corresponding control station type, and filling an IP address and a port number of the control station (for IAPSIU, one port number is filled at any time because the port is fixed). Pop up the configuration window as in FIG. 4 b; after the click determination, as shown in fig. 4c, the data source name just created will appear under the "control station" node,
step S2, creating an IO variable through an IO variable creation and configuration module, where the creation of the IO variable is used when configuring a trigger IO, a write-back IO, a control IO, and a configuration discrete data table, and certainly, if the migration task does not need these separate IO points, the step may not be configured, so that the step is an optional step. The manner of creating IO variables is shown in fig. 5a and 5b, and after determination, the IO variable points just created can be seen under the "IO variable set" node as shown in fig. 5 c.
And step S3, creating a data table through the data table creating and configuring module, wherein the data table comprises a data table facing to the control station and a data table facing to the database.
(1) The data table facing the control station needs to be created under the control station source, and after the creation is successful, the table is used as a data receiving table of the control station- > IAPCCom or a data sending table of the IAPCCom- > control station. The control station data table can be divided into a continuous IO link data table and a discrete IO link data table, wherein continuous IO link refers to that a target control station of the data table is a continuous IO address field; the discrete IO link refers to the migration of each field of the data table with the specified IO point address as the target. Wherein, the process of creating the continuous IO link table is shown in fig. 6a and fig. 6b, and after the creation is successful, as shown in fig. 6c, the table name just created will be seen in the corresponding "data table set". A discrete IO link table creating process is shown in fig. 6d and fig. 6e, wherein menu options can be popped up in an IO variable management window through a right mouse button to perform operations of adding, deleting and changing IO variables; as shown in FIG. 6f, after the creation is successful, the table name just created will be seen in the corresponding "data table set".
(2) The database-oriented data table needs to be created under a database source, and after the creation is successful, the table will be used as a data acquisition table of the database- > IAPCCom (in fact, the table returned by the executed sql statement is used as the main, and the table field definition is mainly used for data conversion and needs to be consistent with the table field returned by the sql execution statement) or a data submission table of the IAPCCom- > database. Fig. 7a to 7c illustrate a process of creating a data table for reading the contents of a database table, fig. 7d to 7e illustrate a process of creating a data table for writing into a database, and after the creation is successful, the configuration data is stored in a datasource tablelnfo.
Step S4, creating a mapping function by the mapping function compiler,
the mapping/converting function is mainly applied to data conversion between the control station data table and the database data table, so that the structure of the source data table and the structure of the target data table (namely, table field names) need to be known when the function is written, for example, a function is established for the previously configured TestTable2 and TestTable _ select table, and in code implementation inside the function, field data of ASourceDataSet is always assigned to a corresponding field of the adostdataset table. The creation process is shown in fig. 8a and 8 b.
Step S5, creating a migration task through the migration task creation and configuration module, and after the above steps are completed, creating a new migration task configuration, as shown in fig. 9a, selecting a new migration task, filling in the name of the migration task (only for display in the software), selecting the type of the migration task (i.e. the direction of migration), and the interface is shown in fig. 9b and fig. 9 c.
Step S6, start the migration task, and after creating the migration task, click the start button in the main interface, and the program will start the migration task marked as "enabled", or click "start the migration task" as in fig. 10 a. If the migration task data needs to be checked, as shown in fig. 10b and 10c, click [ migration task ] - > [ migration task data monitoring ] can be clicked for checking.
After the starting, the data can be relocated:
as shown in fig. 1a, the data migration step from the control station to the database is as follows:
a) according to the set cycle time or monitoring a trigger signal from a control station;
b) acquiring data from the control station according to the configured address area of the control station;
c) and converting the data acquired from the control station into a data format stored in the database by using an algorithm of a defined mapping function (the conversion is performed in a form of a table in a row unit), and submitting the table data obtained after the conversion into a data table specified by the database.
As shown in fig. 1b, the data migration step from the database to the control station:
a) according to the set cycle time or monitoring a trigger signal from a control station;
b) acquiring data from a database according to the configured sql statement;
c) converting the data tables obtained from the database into numerical data tables that can be recognized by the control station using an algorithm of a defined mapping function (the conversion is performed in units of rows in the form of tables); and sending the converted table data to an offset address designated by the control station in a row unit.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (6)
1. A device for realizing data sharing between configuration data of a control station and a third-party database is characterized in that: the method comprises the following steps:
the data source configuration module is used for creating a data source and comprises a database source and a control station source;
the data table creating and configuring module is used for creating or configuring a data table of the database and the control station, and comprises a definition table name, a table field name, a field data type and an address of writing an sql statement or each field corresponding to the control station, which needs to be executed by the database; in the execution process of the subsequent relocation task, if the database is read, the query sql statement is executed to obtain a data table; if the statement is written into the database, the data table provides parameter input for the sql submission statement; the data of the control station is read or written, the selected data table is used as a carrier for storing the data, and the fields of the data table are in one-to-one correspondence to the IO addresses of the designated control station;
the mapping function compiler provides self-defined mapping function compilation for a user;
the relocation task creating and configuring module is used for creating or configuring the relocation task, and a relocation task can be generated for starting and executing after a user selects a relocation direction, a data source and a corresponding data table;
the IO variable creating and configuring module is used for configuring trigger IO, write-back IO, control IO and a discrete data table; wherein the content of the first and second substances,
the trigger IO is used for triggering data relocation through a trigger signal;
the write-back IO is used for writing back a primary trigger signal to the control station after the relocation is finished;
the control IO comprises a task control IO and an execution period control IO, and the task control IO respectively controls the data relocation state and the data relocation period of the task;
the discrete data table is used for storing address data which are assigned by the control station corresponding to each field in the data table, and the addresses are discrete addresses.
2. The apparatus of claim 1, wherein the configuration data of the control station is shared with a third-party database, and the apparatus further comprises: the data table of the control station is divided into a continuous IO link data table and a discrete IO link data table, and the continuous IO link refers to that the target control station of the data table is a continuous IO address field; the discrete IO link refers to the migration of each field of the data table with the specified IO point address as the target.
3. The apparatus of claim 1, wherein the configuration data of the control station is shared with a third-party database, and the apparatus further comprises: the mapping function compiler provides a uniform interface function and declares a predefined function, a user only needs to write a function implementation body by himself, and an algorithm dynamic link library is generated for calling a subsequent relocation task after the user compiles successfully.
4. The apparatus of claim 1, wherein the configuration data of the control station is shared with a third-party database, and the apparatus further comprises: and after the migration task is generated, the generated migration task is displayed under the tree node of the migration task, and the migration of the data can be executed only by starting the created task subsequently.
5. The apparatus of claim 1, wherein the configuration data of the control station is shared with a third-party database, and the apparatus further comprises: the relocation tasks can be simultaneously started and executed after being created in advance, a single relocation task is used as an operation unit during execution, and each relocation task is executed by one thread; each relocation task comprises two tables, wherein one table is a table facing a database, the other table is a table facing a control station, and data in the table facing the control station are numerical data; and one of the two tables is determined as a source data table according to the type of the migrated task, the other table is used as a target data table, wherein the data of the target data table is always filled by the data of the data source table, and the conversion of the data type responsible for the 'source data table → target data table' is completed by a mapping function generated by the user through self compilation.
6. The apparatus of claim 1, wherein the configuration data of the control station is shared with a third-party database, and the apparatus further comprises: the relocation task creating and configuring module also allows a user to configure the control of the control station on the relocation task, including the execution period of the relocation task, the starting/suspending of the relocation task, and the trigger signal for the execution of the relocation task.
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| "DCS自动控制系统软件体系的设计与实现";高素萍;《计算机工程与设计》;20040728;第25卷(第7期);第1192-1194页 * |
| "Design and Implementation of Control System Software Based on VxWorks Multi-Tasks";Zhen Zhang,Yan Li;《2010 3rd International Conference on Advanced Computer Theory and Engineering》;20100920;V2-285-288 * |
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| CN107480224A (en) | 2017-12-15 |
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