KR101406482B1 - Steel process simulation apparatus and method for three dimension virtual equipment - Google Patents

Abstract

An apparatus for simulating a steel process using 3D virtual facility according to the present invention comprises: a database part for modularizing and storing the virtual facility and a control logic; a 3D virtual facility part for assembling a 3D shape of the virtual facility stored in the database part, generating a shape of the 3D virtual facility and simulating a behavior of each facility; a control part for combining the control logic for each corresponding facility stored in the database part and controlling the 3D virtual facility; and an analysis part for logging and analyzing a control result of the 3D virtual facility, controlled by the control part, and real facility. The present invention provides a 3D virtual facility based simulator, thereby enabling a control system developer to understand a movement of the facility and to easily develop control software. Additionally, the present invention checks the control software using the 3D virtual facility before real facility is manufactured and installed, thereby reducing a damage to the real facility due to an error of the control software, and previously discovers an error of the facility before the facility is manufactured and installed, thereby reducing an engineering period and engineering costs. Additionally, the present invention reuses engineering data, thereby reducing the engineering period.

Description

Technical Field [0001] The present invention relates to a steel process simulation apparatus and a method thereof,

The present invention relates to an apparatus and a method for simulating a steel process using a 3D virtual facility, and more particularly, to a steel process simulation apparatus and a method thereof using a 3D virtual facility for early detection of an error by performing trial operation in advance will be.

Commissioning is a trial operation of facilities or factories prior to actual use. It is a step to confirm the functions of the system in stages after equipment installation, cable connection and power reception, and to secure initial facility performance through function adjustment.

Since the commissioning of the control system is possible after the installation of the machine, the dynamic interference of the machine or the discovery of the control defects is not achieved at the beginning of the design. Therefore, it takes a lot of time from start of equipment development to commissioning due to design and manufacturing change.

Therefore, there is an increasing demand for virtual installations that pre-check risk analysis and optimal conditions before actual production or field installation. In order to solve such a problem, the prior art " Publication No. 2012-0071766 " has proposed a virtual equipment system for a steel industry and a driving method thereof, but there is a problem that a 3D visualization method and an analytical method are not sufficiently presented.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a method and apparatus for reusing engineering data, And to provide a steel process simulation apparatus using a 3D virtual facility.

Another object of the present invention is to provide a steel process simulation method for achieving the above object.

According to an aspect of the present invention, there is provided a steel process simulation apparatus using a 3D virtual facility, comprising: a database unit for modularizing and storing virtual facilities and control logic; a 3D unit for assembling virtual features stored in the database unit; A control unit for controlling the 3D virtual facility by combining a 3D virtual facility unit for creating a shape of the 3D virtual facility and simulating the behavior of each facility and a control logic for each facility stored in the database unit, And an analysis unit for logging and analyzing control results of the virtual facility and the actual facility.

According to another aspect of the present invention, there is provided a method for simulating a steel process using a 3D virtual facility, comprising the steps of: (a) modifying and storing virtual facilities and control logic; (b) (C) controlling the 3D virtual facility by combining the control logic of the virtual facility, and (d) controlling the 3D virtual facility and the actual facility by using And logging and analyzing.

According to the present invention, by providing a 3D virtual equipment-based simulator, the control system developer can easily develop the control software by understanding the movement of the facility.

In addition, by checking the control software using the 3D virtual equipment before actual equipment is manufactured and installed, it is possible to reduce the damage of the actual equipment due to the error of the control software, and to detect the equipment error before the equipment production and installation, Can be reduced.

In addition, the engineering period can be reduced by reusing the engineering data.

1 is a diagram showing the overall configuration of a virtual equipment simulation system according to an embodiment of the present invention.
2 is a detailed configuration diagram of the control system and the behavior model unit in FIG.
3 is a diagram showing a classification scheme and a data structure.
4 is a diagram showing an example of a relationship table of height and volume.
5 is a diagram showing an input / output data flow of the control system 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.

2 is a detailed configuration diagram of a control system and a behavior model unit in FIG. 1, and FIG. 3 is a diagram illustrating a configuration of a virtual facility simulation system according to an embodiment of the present invention. And FIG. 4 is a diagram showing an example of a relationship table of height and volume.

Hereinafter, the construction and operation of the steel process simulation apparatus and method of the present invention will be described with reference to FIGS. 1 to 4. FIG.

As shown in FIG. 1, the virtual facility simulation system of the present invention includes a DB system 10 capable of storing and utilizing engineering data such as a 3D shape model, a behavior model, and a control module, A control system (30) for controlling equipment by calling and combining control modules for each facility from a control logic DB (13) of the DB system (10) An actual facility 60 controlled by the control system 30 and an operation state of the control system 30 are displayed on the display 40. [ And an operation screen 70 for displaying an operation screen.

The DB system 10 includes a 3D shape DB 11 for storing newly created 3D shape engineering data, an action model DB 12 for storing behavior model engineering data, and a control logic DB (not shown) for storing control logic engineering data. 13).

The DB system 10 is used for constructing the 3D virtual facility system 20 and the control system 30 by storing engineering data such as a 3D shape, a behavior model, and control logic that are newly produced in the respective DBs. The engineering data stored in each DB is modularized and stored based on classification system in consideration of reusability.

Referring to FIG. 3, the steel process simulation apparatus and method of the present invention of the present invention defines a classification system in units of facility size to be changed or replaced, and stores a 3D shape model, a behavior model, and a control module in each classified facility And is used when the 3D virtual equipment system 20 or the control system 30 is constructed. The constructed and verified engineering data has proven to be reliable and can be reused without any additional verification in the production of new equipment, thereby shortening the system construction period.

Referring again to FIG. 1, the 3D virtual facility system 20 includes a 3D facility configuration unit 21 for loading a 3D configuration of a unit facility from a 3D configuration DB 11 and assembling a virtual facility, And an action model unit 22 for simulating the operation of the facility. The operation of the 3D shape and facility of the 3D virtual facility system 20 can be verified through the virtual environment by the engineer through the large monitor 50. In other words, it provides an environment similar to viewing the equipment in the cab through a large monitor.

Conventional testing can only check whether the desired digital output is on or off for the input, and whether the analog output value is correct. According to the present invention, mechanical motion can be visually checked with the 3D virtual equipment to check the dynamic interference, and the understanding of equipment and movement can be improved. That is, it is possible to check the dynamic interference of the equipment through the control system interlocking and check the collision interference by confirming that the facilities are overlapped.

The 3D virtual facility system 20 should express the facilities and their movements, and express the materials produced in the facilities. The virtual machine expresses the linear and rotational motion using the 3D shape object. The material produced in the steel process changes shape itself. That is, from the performance process to the ladle, turn-up, and mold, the liquid phase, and from the segment to the solid phase, the external dimension changes.

Since the volume of molten steel varies depending on the structure and shape of the ladle, the tundish, and the molder, it is difficult to calculate the volume according to the molten steel height. Therefore, as shown in FIG. 4, before the simulation, the volume according to the height of the molten steel is tabulated in advance. Find the height of the input volume in the table and calculate the median value using interpolation. The ladle and the tundish sense the weight, so the weight by volume is calculated using the following formula.

Volume × ρ (kg / m3) = Weight (kg)

ρ (specific gravity) = 7200 kg / m3 (liquid phase), 7800 kg / m3 (solid phase), 7500 kg /

The dimension change of the material as it passes through the rolling or segment roll is calculated using mass flow.

Width before material roll Width x thickness x Speed = Material width after roll blow x thickness x speed

2, the behavior model unit 22 includes a virtual facility input unit 22a that receives the output of the control system 30 through communication, a facility activity calculation unit 22b that calculates an action result of the facility with respect to the input, And a virtual facility output unit 22c for transmitting the calculation result to the control system 30. [

The facility behavior calculation section 22b calculates a mechanical property value. For example, the location of equipment and production materials and the on / off sensors, speed and acceleration of equipment and materials, and changes in workpiece geometry such as thickness, width, and length.

The facility behavior calculation unit 22b provides an output value for an input using a lookup table of a formula calculation and a reaction model graph.

The control system 30 calls the corresponding control module from the control logic DB 13 to configure the entire control software.

2, the control system 30 includes a communication input / output unit 31 for transmitting / receiving an input / output value to and from a 3D virtual facility for preliminary inspection, a signal input / output unit 32 for inputting / outputting actual control signals, A control module combination unit 33 for controlling a 3D virtual facility and an actual facility, an input / output conversion unit 33 for switching to a communication input / output unit 31 and a signal input / output unit 32 to control a 3D virtual facility and an actual facility, (34).

The control system 30 selects and executes control logic according to the object (virtual facility, actual facility) to be tested. The control logic will be described in more detail with reference to Fig. 5 below.

The analysis system 40 includes a logging unit 41 for logging all input and output data for monitoring and analyzing control values and facility conditions, a feedback value (an output value of a virtual facility, a sensing value of an actual facility) And an analysis unit 42 for checking the control logic.

The analysis system 40 compares the sensed value of the actual facility with the output value of the virtual facility to improve the accuracy of the behavior model of the virtual facility, thereby reducing the verification period by reusing it in the future, thereby shortening the system development period.

5 is a diagram showing an input / output data flow of the control system of the present invention.

As shown, the control system 30 performs control logic according to the object (virtual facility, actual facility) to be tested. This control logic will be described in detail below.

The control system 30 determines whether the target facility to be tested is a virtual facility or an actual facility (S10).

When the target facility to be tested is a virtual facility, the control system 30 receives the virtual sensor data by communication with the virtual sensor (S20).

The control system 30 converts the type of the virtual sensor data received from the virtual sensor (S30).

The control system 30 copies the virtual sensor data whose data type has been converted to the input unit of the control logic (S40).

The control system 30 executes the PLC control logic (S50).

After the PLC control logic is executed, the control system 30 determines whether it is a virtual facility or an actual facility (S60).

The control system 30 copies the result value of the control logic to the output unit (S70) if it is determined that the device is a virtual facility.

The control system 30 converts the data type (S80).

The control system 30 transmits data whose data type has been converted by communication with the virtual facility to the virtual facility (S90).

Meanwhile, if the target facility to be tested is an actual facility in step S10 of determining whether the target facility to be tested is a virtual facility or an actual facility, the control system 30 reads the input signal through the PLC input board (step S100 )do.

The control system 30 converts the signal value of the input signal read through the PLC input board into a physical quantity (S110).

The control system 30 copies the signal value data converted into the physical quantity to the input unit of the control logic (S120).

The control system 30 then executes the PLC control logic (S50). If it is determined in step S60 that it is a virtual facility or an actual facility, the control system 30 outputs the result value of the control logic to the output unit (S130).

The control system 30 converts the physical quantity into a signal value (S140).

The control system 30 writes the output signal through the PLC output board (S150).

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.

10: DB system 20: 3D virtual equipment system
30: control system 40: analysis system
50: Large monitor 60: Actual equipment
70: Operation Screen

Claims (10)

As a steel process simulation device using 3D virtual equipment,
A database unit for modularly storing virtual facilities and control logic;
A 3D virtual facility unit for assembling the 3D shape of the virtual facility stored in the database unit to generate the shape of the 3D virtual facility and simulating the behavior of each facility;
A control unit for controlling the 3D virtual facility by combining the control logic for each facility stored in the database unit; And
A 3D virtual facility controlled by the controller, and an analysis unit for logging and analyzing control results of the actual facility. 2. The apparatus according to claim 1,
A 3D geometry database for storing 3D geometry engineering data;
Behavior model Behavior model database that stores engineering data; And
And a control logic database for storing control logic engineering data. 3. The method of claim 2,
Wherein each of the engineering data stored in the database unit is modularized and stored for reuse. 3. The apparatus of claim 2, wherein the 3D virtual facility comprises:
Wherein physical values such as volume, weight, and height of the liquid material contained in the ladle, the tundish, and the molder in the steel process are calculated and represented using a lookup table. 3. The apparatus of claim 2, wherein the 3D virtual facility comprises:
A 3D equipment shape unit for assembling the virtual equipment using the 3D shape of the unit equipment stored in the 3D shape database; And
And a behavior model unit for simulating the operation of the facility by reflecting an action model of each unit facility. 6. The apparatus according to claim 5,
A virtual facility input unit for receiving a signal output from the control unit;
A facility behavior calculation unit for calculating an action result of the facility with respect to the signal inputted through the virtual facility input unit; And
And a virtual facility output unit for transmitting the calculation result calculated by the facility activity calculation unit to the control unit. The apparatus of claim 1,
A control module combination unit for controlling the 3D virtual facility and the actual facility;
A communication input / output unit for transmitting and receiving an input / output value for controlling the 3D virtual facility;
A signal input / output unit for transmitting and receiving an input / output value for controlling the actual equipment; And
And an input / output conversion unit that is switched to the communication input / output unit and the signal input / output unit to control the 3D virtual facility and the actual facility. The apparatus according to claim 1,
A logging unit for logging all input / output data for monitoring and analyzing control values for controlling the 3D virtual facility and actual facilities and the status of each facility; And
And a control logic analyzing unit for analyzing the output value of the 3D virtual machine and the actual facility with respect to the control output value of the controller to check the control logic. 9. The apparatus of claim 8, wherein the control logic analyzer comprises:
And the accuracy of the behavior model of the 3D virtual facility is improved by comparing the output value of the 3D virtual facility with the actual facility. As a steel process simulation method using a 3D virtual facility,
(a) modularizing and storing virtual facilities and control logic;
(b) assembling the 3D shape of the stored virtual facility to create a shape of the 3D virtual facility;
(c) controlling the 3D virtual facility by combining control logic of the stored virtual facility; And
(d) The steel process simulation apparatus includes a step of logging and analyzing the control results of the 3D virtual facility and the actual facility to analyze the steel process.

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