KR101555601B1 - System and method for virtual equipment modeling - Google Patents

Abstract

The virtual equipment modeling system according to an embodiment of the present invention includes a facility data database for storing facility data necessary for modeling virtual facilities, facility data to be modeled from the facility data database, And a structure that defines the structure of the virtual equipment model as a form of semantic information by grouping the semantic information of the 3D CAD files for each part constituting the virtual facility into a minimum unit of the facility that is controlled by the control A definition unit, and a virtual equipment model database storing information on the structure of the virtual equipment model defined above.

Description

TECHNICAL FIELD [0001] The present invention relates to a virtual equipment modeling system and a virtual equipment modeling method.

The present invention relates to a virtual equipment modeling system and a virtual equipment modeling method for modeling virtual equipment, and more particularly, to a virtual equipment modeling system and a virtual equipment modeling method for modeling virtual equipment suitable for the construction of a continuous process in a simulation environment .

The steel industry is a gigantic device industry, and the development of new products and the development of new grades requires a great deal of time and cost for various tests using actual equipment. However, in a simulation environment called 3D virtual space, testing using virtual equipments that perform the same function as actual facilities can save time and cost significantly.

In order to construct a simulation environment, various engineering data sets including 3D CAD data are required. The form of the engineering dataset varies from end to end target systems (commercial vendor products). Accordingly, a simulation environment (i.e., a virtual factory system) is constructed in a different form for each target system. Because of this situation, system dependence of commercial vendor products is considerably high even if it is not easy to construct the system and it is not built by each vendor's system specialist. Because of this problem, the compatibility of product information between virtual factory systems is impossible and causes a big problem in reusability.

The commercially available 3D simulator, which is currently being sold to build a virtual factory system, is a simulator specialized in the assembly industry (for example, automobile, aviation, shipbuilding) and can not support a simulation environment suitable for continuous processes in the steel industry. In order to use a commercial 3D simulator, customization is required to suit the user's convenience, and all the data for constructing a virtual factory system must be transformed in accordance with the system. Therefore, even if a user wishes to perform another simulation by replacing only a part of equipment in the virtual factory system, there is a problem that the entire virtual plant system needs to be reconstructed. And waste of time. The biggest problem of the present system is that the process know-how and knowledge should be disclosed to the virtual factory system construction expert in order to construct the virtual factory system, which causes problems of exposing the process know-how and knowledge to the outside.

There is a need in the art for a virtual equipment modeling system and a virtual equipment modeling method for modeling virtual equipment suitable for the configuration of continuous processes in a simulation environment.

The virtual equipment modeling system according to an embodiment of the present invention includes a facility data database for storing facility data necessary for modeling virtual facilities, facility data to be modeled from the facility data database, And a structure that defines the structure of the virtual equipment model as a form of semantic information by grouping the semantic information of the 3D CAD files for each part constituting the virtual facility into a minimum unit of the facility that is controlled by the control A definition unit, and a virtual equipment model database storing information on the structure of the virtual equipment model defined above.

In the virtual equipment modeling system according to an embodiment of the present invention, the shape defining unit defines at least one of position coordinate values, motion range values, and motion methods for each of the grouped objects, Link relationship, and the definition result is stored in an extensible markup language (XML) file format in the virtual facility model database.

In a virtual equipment modeling system according to an embodiment of the present invention, a PLC (programmable logic controller) input / output (I / O) signal list Information on an event condition for the operation of the actuator and the sensor such as a motor, and the motion of the actuator are defined in the form of a state chart, And a movement definition unit for storing the state chart of the sensor in a UML (unified modeling language) file format, wherein the status chart is created by specifying the state of the PLC I / O signal, the state of the actuator or sensor, .

In the virtual equipment modeling system according to an embodiment of the present invention, a relationship diagram is defined by connecting the state chart of the defined actuator and sensor and the equation model, and a function of storing the relationship diagram defined in the virtual equipment model database And a definition unit.

In the virtual equipment modeling system according to the embodiment of the present invention, the facility data stored in the facility data database includes 3D CAD files for each part constituting the facility, position coordinate values for each part, motion range values, A facility classification document containing information on the minimum unit of the facility to be moved by control, a PLC I / O signal list information for control of the facility, and an actuator such as a motor, A document including information on an event condition for an operation, and an algorithm modification model.

A virtual equipment modeling method according to an embodiment of the present invention includes a step of extracting facility data of a virtual facility to be modeled from a facility data database, a step of extracting facility data of a virtual facility based on the extracted facility data, Extracting semantic information from the CAD files, and defining the structure of the virtual equipment model by grouping the semantic information of the extracted 3D CAD files according to the parts into a minimum unit of the facility to be controlled.

The virtual equipment modeling method according to an embodiment of the present invention may further include the steps of defining a movement of a virtual facility model based on the extracted facility data and defining a function of the virtual facility model based on the extracted facility data The method comprising the steps of:

In the virtual equipment modeling method according to an embodiment of the present invention, at least one of a position coordinate value, a motion range value, and a motion method for each part is defined for the grouped objects based on the extracted facility data, And defining a link relationship between the objects.

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In the virtual equipment modeling method according to an embodiment of the present invention, the movement of the actuator and the sensor is defined in the form of a status chart for an object to be controlled by actual movement among the grouped objects based on the extracted facility data Wherein the status chart is created by specifying a state of a PLC I / O signal, an actuator or a sensor, and a state transition condition.

In the virtual equipment modeling method according to an embodiment of the present invention, the method may further include the step of defining a relationship diagram by connecting the state chart of the defined actuator and the sensor with the equation model based on the extracted facility data .

In the virtual equipment modeling method according to an embodiment of the present invention, the facility data includes 3D CAD files for each part constituting the facility, 2D data including position coordinate values for each part, motion range values, File, a facility classification document containing information on the minimum unit of the facility to be moved by control, PLC I / O signal list information for control of the facility, and information on event conditions for the operation of actuators and sensors such as motors A document including at least one of a document including an image and an algorithm modification model.

In addition, the solution of the above-mentioned problems does not list all the features of the present invention. The various features of the present invention and the advantages and effects thereof will be more fully understood by reference to the following specific embodiments.

A virtual equipment modeling system and a virtual equipment modeling method for modeling virtual equipment suitable for the construction of a continuous process in a simulation environment can be provided.

1 is a block diagram showing an apparatus configuration of a virtual equipment modeling system according to an embodiment of the present invention;
2 is a diagram illustrating a method of defining a structure of a virtual equipment model in a virtual equipment modeling system according to an embodiment of the present invention.
3 is a diagram illustrating another example of a method of defining a structure of a virtual equipment model in a virtual equipment modeling system according to an embodiment of the present invention.
4 is a diagram illustrating a method of defining kinematic information of a virtual equipment model in a virtual equipment modeling system according to an embodiment of the present invention.
5 is a diagram illustrating a method of defining a movement of a virtual equipment model in a virtual equipment modeling system according to an embodiment of the present invention.
FIG. 6 is an exemplary view showing a method of defining a function of a virtual facility model in a virtual facility modeling system according to an embodiment of the present invention; and
7 is a flowchart illustrating a virtual equipment modeling method of a virtual equipment modeling system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

Hereinafter, a virtual equipment modeling system and a virtual equipment modeling method for modeling a virtual facility, which is a minimum object that enables various simulations to be performed by implementing the same motion as an actual facility in a simulation environment called 3D virtual space according to an embodiment of the present invention Will be described. Particularly, a virtual equipment modeling system and a virtual equipment modeling method for modeling a virtual equipment suitable for the construction of a continuous process in a simulation environment will be described.

1 is a block diagram showing an apparatus configuration of a virtual equipment modeling system according to an embodiment of the present invention.

1, a virtual equipment modeling system according to an embodiment of the present invention includes a virtual equipment model generation module 100, a facility data database (DB) 110, and a virtual equipment model database 120 The virtual facility model generation module 100 includes a shape defining unit 102, a motion defining unit 104, and a function defining unit 106.

The virtual facility model generation module 100 extracts facility data necessary for virtual facility modeling in the facility data database 110, defines the shape, motion, and functions of the virtual facility model based on the extracted facility data, And stores it in the virtual equipment model database 120.

Hereinafter, the detailed structure of the virtual facility model generation module 100 will be described.

First, the shape definition unit 102 determines the 3D CAD drawing files for each part including the information about the shape of at least one part constituting the facility in the facility data database 110, the position coordinate values for each part, A 2D drawing file including information on a motion range value and a motion method (for example, a straight line, a rotation, and the like) and a facility classification document including information on a minimum unit of the facility moved by control are extracted, And stores the result of the definition in the virtual equipment model database 120. The virtual equipment model database 120 stores the definition of the virtual equipment model.

In detail, the shape defining unit 102 defines the structure of the virtual facility model in the form of desired semantic information by combining 3D CAD drawing files for each part constituting the facility. That is, the shape defining unit 102 extracts semantic information, which is information composed of numbers or characters, in the file name or content portion of the 3D CAD drawing files for each part constituting the facility, The information is cataloged in a sub-group of the virtual facility model to define the structure of the virtual facility model. Here, the structure of the virtual equipment model can be expressed in various ways according to the user standard. For example, when modeling a steel facility called a ladle, "band", "container", and "bolt" are set in the file name or content portion of the 3D CAD drawing files for the components constituting the ladle, , "Nut", "shaft", and the like can be extracted, and the extracted semantic information can be cataloged in a sub-group of the virtual facility model to define the shape of the ladle. Since all the drawing files generated by the 3D CAD program have the structure information, the shape defining unit 102 expresses the structure of the 3D CAD drawing files for each part constituting the equipment through the viewer, and changes the structure thereof in the viewer And combine to represent the structure of the virtual plant model.

Or, the shape and quality of the product generated in the facility are determined according to the control movement of the facility. Therefore, the shape defining unit 102 combines 3D CAD drawing files for each part constituting the facility, The combined 3D CAD drawing files may be grouped as a minimum unit to define the structure of the virtual equipment model in the form of desired semantic information. That is, the shape defining unit 102 extracts semantic information, which is information composed of numbers or characters, in the file name or content portion of the 3D CAD drawing files for each part constituting the facility, Information may be cataloged in a sub-group of the virtual facility model and the structure of the virtual facility model may be defined by grouping the semantic information of the 3D CAD drawing files listed above as a minimum unit of the facility moving by the control. For example, as shown in FIG. 3, the 3D CAD drawing files for the buckets, which are the minimum unit of the apparatus that is controlled by the control, and the parts constituting the ladder by the slide gate can be grouped.

In addition, the shape defining unit 102 defines kinematic information for the grouped objects. That is, it defines position coordinate values, motion range values and motion method (for example, straight line, rotation, and the like) for each part and defines a link relation between the grouped objects. For example, as shown in FIG. 4, a position coordinate value for each part is defined for a bucket object, a position coordinate value, a motion range value, and a motion method for each part are defined for the slide gate object, You can define the relationship of objects.

In addition, the shape defining unit 102 stores information on the structure of the virtual equipment model defined above and kinematic information in the virtual equipment model database 120 in the form of an XML (extensible markup language) file.

Next, the motion definition unit 104 obtains information on a minimum unit of the facility that is controlled by the facility data database 110, programmable logic controller (PLC) input / output (I / O) ) Signal list information, and an event condition for an actuator and sensor operation of a motor, and defines a movement of the virtual equipment model based on the document, and transmits a definition result to the virtual equipment And stores it in the model database 120.

In detail, in order to move the virtual facility, an actuator for moving the facility and a sensor for checking the movement of the facility are required. The movement defining unit 104 functions to define the movement of the actuator and the sensor do. That is, the motion definition unit 104 determines PLC I / O signal list information for control of the facility, and information about the PLC I / And the motion of the actuator and the sensor are defined in the form of a state chart based on the information of the event condition for the operation of the actuator and the sensor.

The status chart is created by specifying the PLC I / O signal, the status of the actuator or sensor, and the state transition conditions. For example, in FIG. 5, 'Start' and 'Stop' represent states of an actuator or a sensor, 'Event_Start' and 'Event_Stop' represent state transition conditions, 'Input' O signal. Accordingly, when the PLC input signal for the operation of the event is input and the event start condition 'Event_Start' is satisfied, the actuator moves from 'Stop' to 'Start' to perform an action, It can be defined in the form of a status chart that outputs the PLC output signal that includes the result of performing the action when transitioning from 'Start' to 'Stop' if the condition 'Event_Stop' is satisfied.

In addition, the motion definition unit 104 stores the state chart of the actuator and sensor defined in the virtual equipment model database 120 in a UML (unified modeling language) file format.

Next, the function definition unit 106 extracts an algorithm mathematical model capable of expressing the same motion as an actual facility in a virtual environment in the facility data database 110, defines the function of the virtual equipment model based on the extracted algorithm model, , And stores the definition result in the virtual equipment model database 120.

In detail, when a shape expressed by a 3D CAD program is moved in a virtual space, it is necessary to reflect the actual environment in order to exhibit the same motion as the actual equipment. For example, it is necessary to reflect mechanical factors such as the weight of the equipment, the performance of the motor, the acceleration / deceleration of the weight of the equipment, and the inertia. Accordingly, the function definition unit 106 algorises the weight, flow rate, unit conversion, and the like of the facilities that can not be expressed in the virtual environment with respect to the state chart of the actuators and sensors defined in the motion definition unit 104 An equation model is connected to define a relationship diagram, and the relationship diagram defined in the virtual equipment model database 120 is stored. For example, as shown in FIG. 6, a relation chart can be defined by connecting a state chart of an actuator and a sensor with an equation model.

The facility data database 110 stores facility data necessary for the virtual facility modeling. The facility data is extracted by the shape defining unit 102, the motion defining unit 104 and the function defining unit 106 in the virtual facility model generating module 100, The facility data extracted and provided by the CAD system includes parts-specific 3D CAD drawing files including information on the shape of at least one part constituting the facility, position coordinate values, motion range values, and movement methods (for example, , A straight line, a rotation, and the like), and a facility classification document including information on a minimum unit of the facility that is moved by control. The facility data extracted and provided by the motion defining unit 104 includes information on a minimum unit of the facility that is controlled by the control, PLC I / O signal list information for controlling the facility, and an actuator such as a motor, And a document containing information on event conditions for the operation of the sensor. The facility data extracted and provided by the function definition unit 106 includes an algorithmic mathematical expression model capable of expressing the same motion as a real facility in a virtual environment.

The virtual facility model database 120 receives the definition results of the shape, motion, and function of the virtual facility model from the virtual facility model generation module 100 and stores the data structure. The result of defining the shape, motion, and function of the virtual equipment model is used in the construction of the continuous process in the simulation environment. The continuous process has a form in which a plurality of facilities are connected to constitute a single process.

7 is a flowchart illustrating a virtual equipment modeling method of a virtual equipment modeling system according to an embodiment of the present invention.

Referring to FIG. 7, in step 701, the virtual equipment modeling system extracts facility data from a facility data database. Here, the facility data includes a 2D drawing file including 3D CAD drawing files for each part constituting the facility, position coordinate values for each part, motion range values, and motion mode, A facility classification document containing information on the unit, a PLC I / O signal list information for control of the facility, a document containing information on an event condition for the operation of actuators and sensors of the motor, Includes an equation model.

Then, in step 703, the virtual facility modeling system generates a facility classification document including information on the 3D CAD drawing files for each part constituting the facility and information on the minimum unit of the facility moving by the control, based on the extracted facility data , The 3D CAD drawing files for each part constituting the facility are combined and the 3D CAD drawing files are grouped as a minimum unit of the facility moving by the control to define the structure of the virtual equipment model in the form of semantic information. That is, the virtual facility modeling system extracts semantic information, which is information composed of numbers or characters, in the file name or contents part of the 3D CAD drawing files for each part constituting the facility, and extracts semantic information of the extracted 3D CAD drawing files And the semantic information of the 3D CAD drawing files listed above is grouped as a minimum unit of the facility which is moved by control to define the structure of the virtual equipment model.

In step 705, the virtual facility modeling system extracts a 2D drawing file including position coordinate values, motion range values, and motion information (for example, straight line, rotation, etc.) Based on the grouped objects, position coordinate values, motion range values, and motion methods of the corresponding parts are defined, and link relationships between the grouped objects are defined.

Then, in step 707, the virtual equipment modeling system extracts, from among the extracted plant data, information on the minimum unit of the facility that is controlled by the control, PLC I / O signal list information for controlling the facility, The movement of the actuator and the sensor is defined in the form of a status chart for an object to be controlled by the actual motion among the grouped objects based on a document including information on an event condition for operation of the actuator. Here, the status chart is prepared by specifying the PLC I / O signal, the state of the actuator or the sensor, and the state transition condition.

Then, in step 709, the virtual equipment modeling system defines a relationship diagram by connecting the state chart of the sensor and the model of the sensor defined above, based on the algorithm model, among the extracted plant data.

Then, in step 711, the virtual equipment modeling system stores definition results in a virtual equipment model database.

Thereafter, the virtual equipment modeling system ends the algorithm according to the present invention.

As described above, the virtual equipment modeling system and the virtual equipment modeling method according to the embodiment of the present invention can model the virtual equipment suitable for the configuration of the continuous process in the simulation environment by defining the shape, motion and function of the virtual equipment model , It is possible to construct a library based on the virtual equipment model in which the shape, motion, and function are defined, build the virtual factory system quickly using the virtual equipment model stored in the library, and perform various simulations through the virtual factory system So that it is possible to support quick decision making by the operator.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be obvious to those of ordinary skill in the art.

100: virtual equipment model generation module
102: Shape definition section
104: motion definition unit
106: Function definition section
110: Equipment data database
120: virtual equipment model database

Claims (12)

A facility data database for storing facility data necessary for virtual equipment modeling,
Extracting facility data to be modeled from the facility data database, extracting semantic information of 3D CAD files for each part constituting the virtual facility based on the extracted facility data, moving the extracted semantic information by control A shape defining unit for defining a structure of a virtual equipment model in the form of semantic information by grouping into a minimum unit of equipment,
And a virtual equipment model database storing information on the structure of the virtual equipment model defined above.
The apparatus according to claim 1,
Defines at least one of a position coordinate value, a motion range value, and a motion method for each of the grouped objects, defines a link relation between the grouped objects,
And stores the definition results in an extensible markup language (XML) file format in the virtual facility model database.
3. The method of claim 2,
A programmable logic controller (PLC) I / O (I / O) signal list information for controlling the facility, an event for the operation of actuators and sensors such as motors, The movement of the actuator and the sensor is defined in the form of a state chart based on the information about the condition, and the state chart of the actuator and the sensor defined in the virtual facility model database is stored in a UML (unified modeling language) Further comprising a motion defining section for storing motion information,
Wherein the status chart is created by specifying the PLC I / O signal, the state of the actuator or the sensor, and the state transition condition.
The method of claim 3,
Further comprising a function definition unit that defines a relationship diagram by connecting the state chart of the defined actuator and sensor with the mathematical expression model and stores the relationship diagram defined in the virtual equipment model database.
The method according to claim 1,
The facility data stored in the facility data database includes 3D CAD files for each part constituting the facility, a 2D file including information on position coordinate values, motion range values, and motion methods for each part, and equipment A facility classification document containing information on the minimum unit, a PLC I / O signal list information for controlling the facility, and a document including information on an event condition for an actuator and sensor operation of the motor, And an algorithmic mathematical model of the virtual machine modeling system.
Extracting facility data of a virtual facility to be modeled from the facility data database;
Extracting semantic information from 3D CAD files for each part constituting the virtual facility based on the extracted facility data;
And defining the structure of the virtual facility model by grouping the extracted semantic information of the 3D CAD files for each part into a minimum unit of the facility that is controlled by the control.
The method according to claim 6,
Defining a movement of the virtual equipment model based on the extracted facility data;
Further comprising the step of defining a function of a virtual facility model based on the extracted facility data.
delete The method according to claim 6,
Defining at least one of a position coordinate value, a motion range value, and a movement method for each of the grouped objects based on the extracted facility data, and defining a linking relationship between the grouped objects Virtual equipment modeling method.
10. The method of claim 9,
Further comprising the step of defining the movement of the actuator and the sensor in the form of a state chart for an object to be controlled as an actual motion among the grouped objects based on the extracted facility data,
Wherein the status chart is created by specifying a programmable logic controller (PLC) input / output (I / O) signal, an actuator or sensor state, and a state transition condition.
11. The method of claim 10,
Further comprising the step of defining a relationship diagram by linking a statechart and an equation model of the defined actuator and sensor based on the extracted facility data.
The method according to claim 6,
The facility data includes a 2D file including 3D CAD files for each part constituting the facility, position coordinate values for each part, motion range value, and motion mode, and information about a minimum unit of the facility that is moved by control A PLC I / O signal list information for control of the facility, a document including information on an event condition for an actuator and an actuator of a motor, and a document including at least an algorithmic equation model Wherein the virtual machine modeling method comprises:

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