KR101575783B1 - The method of controlling system simulation and the device for that and the computer readable medium having that - Google Patents

Abstract

Provided is a system control method including the steps of: applying at least one variable value, included in a variable batch file, to at least one sub-system if a simulation device of a predetermined system receives the variable batch file, which defines at least one variable value, included in at least one sub-system constituting a simulation environment, in a batch manner; stopping a simulation if reception of a new variable batch file for changing at least one variable value is sensed during execution of the simulation in a time area after performing trim and linearization processes for the simulation; updating at least one variable value included in the system by applying at least one variable value, included in the new variable batch file, to at least one sub-system; and restarting the simulation from a stop point of the simulation by using the updated variable value. In addition, provided are a simulation control apparatus for the system control method and a recording medium which can be read by a computer. According to the present invention, the system control method, the control apparatus, and the computer-readable recording medium in which a program is recorded can identify influence resulting from change of a related variable by defining an initial value of a main variable and changing the variable value during the simulation; perform simulations with respect to a number of cases within a short time in a manner of batch work if there are a number of variables; and thus efficiently perform a system simulation.

Description

TECHNICAL FIELD The present invention relates to a system simulation control method, a control apparatus thereof, and a computer-readable recording medium on which the program is recorded. BACKGROUND OF THE INVENTION 1. Field of the Invention [0002]

The present invention relates to a system simulation control method, a control apparatus and a computer-readable recording medium on which the program is recorded, and more particularly, to a system simulation control method capable of modeling a subsystem and modifying key variables, And a computer-readable recording medium on which the program is recorded.

In the development of sophisticated systems such as aircraft and satellite, subsystems are mathematically modeled and verified in advance through various simulations before actual test evaluation using non real-time and real-time simulation environments. The main variables in the modeled subsystem verify the stability of the system against errors by performing a number of simulations on the errors that may occur. Therefore, there is a need for a method that can simulate and evaluate a large number of cases within a limited time.

Korean Patent No. 257,409 discloses an aircraft simulation method and apparatus. However, such a simulation method and apparatus can not be changed during the simulation because the main variables in the subsystem are fixed, and when the variables in the subsystem are changed, the simulation software environment must be recompiled to operate the system inefficiently.

Korean Registered Patent No. 257,409 (registered on December 15, 1999)

An object of the present invention is to provide a system simulation control method, a control apparatus, and a computer-readable recording medium on which the program is recorded, which solves the problem of being inefficiently performed due to waste of resources of a conventional system simulation method.

According to the present invention, when a simulation apparatus of a predetermined system receives a variable batch file collectively defining at least one variable value included in at least one subsystem constituting a simulation environment, Applying a single variable value to at least one subsystem, performing a trim and a linearization process for the simulation, and performing a simulation in the time domain, wherein a new variable batch file for changing at least one variable value Updating at least one variable value included in the system by applying at least one variable value included in a new variable batch file to at least one subsystem; The simulation is resumed from the point where the simulation is stopped by using one variable value A method for controlling a system simulation is provided.

The step of applying to at least one subsystem, on the other hand, comprises the steps of: identifying at least one variable included in the subsystem; initializing the identified variable; upon receiving the variable batch file, Extracting identification information and variable value information of the variable values of the identification information, and applying the variable values matched to the identified variables using the identification information to the identified variables, respectively.

The step of updating the at least one variable value may further include, when detecting that the simulation is aborted by stopping the simulation, executing a new variable batch file to identify at least one variable value included in the new variable batch file, Extracting variable value information, and changing a variable value matched to each variable to a variable value extracted from a new variable batch file using the identification information.

And applying to at least one subsystem may be configured to change a variable value of the subsystem to at least one variable value included in the received variable batch file if at least one previously stored variable value exists .

Further, in the step of stopping the simulation, when the variable values to be applied for the trim and the linearization process are stored in the trim and the linearization process for the simulation, they are stored as the at least one variable value included in the received variable batch file And to change the value of the variable to perform the trim and linearization process.

The method may further include a step of, after the step of resuming the simulation, outputting the derived analysis information according to the simulation result.

When receiving a variable batch file for collectively defining at least one variable value included in at least one subsystem constituting a simulation environment of a predetermined system according to the present invention, at least one Applying a variable to apply a variable value to at least one subsystem. A simulation execution unit for performing a simulation in a time domain after performing a trim and a linearization process for a simulation, and a simulation unit for detecting a reception of a new variable batch file for changing at least one variable value during a simulation, And at least one variable value included in the variable batch file is applied to at least one subsystem so as to update at least one variable value included in the system, And a variable changing unit for sending a command to restart the simulation from the point of time when the simulation is stopped.

According to the present invention, when a simulation apparatus of a predetermined system receives a variable batch file for collectively defining at least one variable value included in at least one subsystem constituting a simulation environment, Applying at least one variable value included to at least one subsystem, performing a trim and a linearization process for simulation, and performing a simulation in a time domain, wherein a new variable for changing at least one variable value Stopping the simulation upon detecting reception of a batch file, applying at least one variable value contained in the variable batch file to at least one subsystem to update at least one variable value included in the system, The simulation is resumed from the point at which the simulation is stopped by using at least one variable value A recording medium readable by the computer program is recorded for performing the simulation system control method comprising the steps can be provided.

A system simulation control method, a control apparatus, and a computer readable recording medium on which the program is recorded are characterized in that an initial value of a main variable is defined, and a transition response characteristic Can be grasped in real time. If there are many variables, it is possible to simulate many cases in a short time in the form of a batch job, so that system simulation can be efficiently performed.

1 is a flowchart of a first embodiment according to the present invention.
2 is a flowchart of a second embodiment according to the present invention.
3 is a flowchart of a third embodiment according to the present invention.
4 is a conceptual diagram of a system simulation control apparatus according to the present invention.
5 is a block diagram showing the main variables of the aircraft system simulation.

Hereinafter, a system simulation control method, a control apparatus, and a computer-readable recording medium having the program recorded thereon according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the embodiments, the names of the respective components may be referred to as other names in the art. However, if there is a functional similarity and an equivalence thereof, the modified structure can be regarded as an equivalent structure. In addition, reference numerals added to respective components are described for convenience of explanation. However, the contents of the drawings in the drawings in which these symbols are described do not limit the respective components to the ranges within the drawings. Likewise, even if the embodiment in which the structure on the drawing is partially modified is employed, it can be regarded as an equivalent structure if there is functional similarity and uniformity. Further, in view of the level of ordinary skill in the art, if it is recognized as a component to be included, a description thereof will be omitted.

1 is a flowchart of a first embodiment according to the present invention.

As shown in the figure, the system simulation control method according to the present invention includes a step S100 for applying to at least one subsystem, a simulation start step S300, a simulation stop step S400, a variable value updating step S420 , And resuming the simulation (S500).

An apparatus for real-time simulation of the system receives the system data to be simulated, performs simulation of the system over time in the time domain, and analyzes the derived result values by the user.

The step S100 of applying the apparatus for real-time simulation of the system to at least one subsystem includes the steps of: when receiving a variable batch file for collectively defining main variables in the subsystem, Lt; / RTI > to at least one subsystem. Therefore, it is possible to simulate a large number of cases depending on the change of the main variable to be known.

Before performing the real-time simulation, a trim step (S210) for simulating the steady-state environment of the aircraft is performed, and then the system is processed through the linearization step (S220).

In the simulation start step (S300), a 6-degree-of-freedom simulation is performed to obtain a simulation result according to the subsystem.

The step of stopping the simulation (S400) is configured to stop the simulation to change the main variable value during the execution of the simulation. Upon detecting the reception of a batch file for updating at least one variable value of the main variables described above, the simulation is stopped.

Updating the variable value (S420) is configured to apply the new variable value to the main variable in the received new batch file. At least one variable value to at least one main variable value.

The step of resuming the simulation (S500) is configured so that the simulation can be resumed from the point of interruption after the main variable value is updated to the new variable value.

Meanwhile, the step of suspending the simulation (S400) and the step of resuming the simulation (S500) may be repeated a plurality of times when the variable value of the main variable is changed plural times.

2 is a flowchart of a second embodiment according to the present invention. In the second embodiment, the same constituent elements as those in the first embodiment can be included, and a detailed description thereof will be omitted in order to avoid redundant description.

As shown, step (S100) applied to at least one subsystem in the system simulation control method according to the present invention comprises the steps of: identifying (S110) at least one variable included in the subsystem, (S120), extracting identification information and variable value information (130), and applying the discriminated information to the identified variable (S140).

Identifying at least one variable included in the subsystem (S110) identifies a primary variable that alters the subsystem by changing the value of the variable.

Initializing the identified variable (S120) initializes the identified key variable prior to simulation.

The step 130 of extracting the identification information and the variable value information extracts the identification information and the variable value information in order to apply the variable values of at least one main variable included in the batch file collectively to the subsystem before starting the simulation . Therefore, identification information is extracted and it is decided which main variable is to be applied, and the value of the variable value information is extracted and the value to be applied is determined.

 The step of applying to the identified variable (S140) applies the variable value contained in the batch file matching the identified key variable to the identified key variable.

Then, as shown in FIG. 1, the simulation is performed through the trim and linearization step (S200).

3 is a flowchart of a third embodiment according to the present invention. In the third embodiment, the same constituent elements as those in the first embodiment can be included, and a detailed description thereof will be omitted in order to avoid redundant description.

As shown in the figure, the step S420 of updating the new variable value includes a step S410 of extracting identification information and variable value information of a new variable, and a step S420 of applying a new variable value to the identified variable Lt; / RTI >

The step S420 of updating the at least one variable value is configured to resume the simulation by changing the main variable value during the real-time simulation.

The step S410 of extracting the identification information and the variable value information of the new variable includes executing the new variable batch file upon detecting that the simulation is stopped by stopping the simulation at step S400, And to extract the identification information of the variable value and the variable value information.

(S420), and applying the identified variable to the identified variable (S420), the main variable of each subsystem is matched by using the identification information of at least one variable value included in the new variable batch file, Variable The new variable value extracted from the batch file is applied to the main variable.

When the new variable value is applied to the main variable, a step S500 of resuming the simulation is performed.

4 is a conceptual diagram of a system simulation control apparatus according to the present invention.

The system simulation control apparatus according to the present invention includes a system data loading unit 400, a batch file input unit 100, a variable application unit 200, a simulation execution unit 500, a variable changing unit 300, And a storage unit (600).

The system data loading unit 400 may be configured to receive data of a predetermined system that comprises at least one subsystem including at least one variable value and constitute a simulation environment.

The batch file input unit 100 may be configured to receive a variable batch file and a new variable batch file that collectively define at least one variable value.

When receiving a variable batch file for collectively defining at least one variable value included in at least one subsystem constituting a simulation environment of a predetermined system, the variable applying unit 200 applies at least one To be changed.

The simulation execution unit 500 is configured to load data of the system and to perform real-time simulation of the subsystem to which the variable value defined from the variable application unit is applied. Each subsystem may be configured to perform a trim and linearization process for the simulation and then perform the simulation in the time domain. The simulation execution unit can be configured to perform simulation of various degrees of freedom including 6 degrees of freedom.

The variable changing unit 300 is configured to change the main variable value during the simulation. When the reception of a new variable batch file for changing at least one variable value is detected during the simulation, the simulation being performed in the simulation performing unit 500 is stopped. And applies at least one variable value included in the variable batch file to at least one subsystem to update at least one variable value included in the system. Then, the simulation execution unit 500 is configured to send an instruction to the simulation execution unit 500 to resume the real-time simulation from the interruption point of the simulation by using at least one variable value updated in the simulation execution unit.

The storage unit 600 may be configured to store the results of the simulation.

On the other hand, a display unit (not shown) or the like may be provided to display the result of the simulation.

5 is a block diagram showing the main variables of the aircraft system simulation. As shown, the subsystems that make up the aircraft system simulation may comprise various modules.

In the case of aircraft system simulation, it may be configured to include an aircraft module 40, a pilot module 10, a control law module 20, a driver module 30, a standby module, and a sensor module 50.

The aircraft module 40 comprises a subsystem modeled mathematically with respect to the shape, weight, etc. of the aircraft. The aircraft module 40 comprises the aircraft's major parameters such as the aircraft's major aerodynamic parameters, weight, fuel weight, shape, propulsion, and the like.

The pilot module 10 comprises a subsystem mathematically modeled with respect to pilot manipulation. The pilot module 10 is configured to include the key variables associated with the pilot's input.

The control law module 20 comprises a mathematically modeled subsystem of control laws for generating signals for driving an aircraft in accordance with pilot inputs. The control law module 20 includes the main parameters related to the control law such as the control gain, the control mode, and the filter coefficient.

The driver module 30 is composed of a subsystem mathematically modeled by a driver for receiving the control input from the control law module 20 and driving the aircraft. The driver module 30 is configured to include the main variables related to attenuation ratio, frequency, and other dynamic characteristics.

 The standby module constitutes a subsystem in which the influence of the atmosphere, which can act as a disturbance of the aircraft system, is mathematically modeled. The standby module is composed of major variables related to the strength and direction of external disturbance, crosswind, and external environment change.

The sensor module 50 constitutes a mathematically modeled subsystem for measuring various states of the aircraft. The sensor module 50 is configured to include the main parameters related to the aircraft state variable offset or magnification, attenuation ratio, frequency, dynamic characteristics, and the like.

A plurality of such modules constitute a subsystem of the aircraft system simulation. If there is an input from the pilot, a signal for driving the driving unit is generated in accordance with the control law, thereby changing the flight state of the aircraft, and the influence of the disturbance may also be reflected. The system consists of a system that detects the state of the changed aircraft and controls it by comparing it with the input of the pilot.

System data including the aircraft module 40, the pilot module 10, the control law module 20, the driver module 30, the standby module, and the sensor module 50 are received in the real-time simulator before real- , And recognizes and initializes the main variables included in each subsystem, namely, weight, wind intensity, and the like.

Meanwhile, the batch file input from the user includes the initial values of the main variables such as the weight and the wind intensity, and the initial values are applied to the main variables to start the real-time simulation. The results are stored as the real-time simulation progresses.

When performing a real-time simulation, in order to change the main variable value and to check the result, a new batch file including the changed variable value is input from the user and the main variable is updated with the new variable value.

The new variable values are applied to simulate the effects of dropping the objects loaded inside the aircraft during flight and reducing the gross weight of the aircraft or suddenly increasing the side wind.

When the new variable value is applied, the simulation is re-executed after the trim and linearization steps. The result of the re-execution can be stored and used as a comparative analysis data.

Also, in the case of changing the pitching moment parameter value of the aircraft module 40 from 1.0 to 1.2, 1.4, etc. among the variable values, when the response of the aircraft is to be known, the reception of the variable value is detected and the simulation is stopped. It is identified as the pitching moment variable by the identification information, and then the variable value 1.2 is extracted and applied as the variable value of the matching aircraft module 40. After the trim and linearization process is performed with the changed variable value, the simulation that was stopped in the time domain is restarted, and the response result of the aircraft to the change can be obtained.

In addition, a batch file containing at least one key variable is applied in order to analyze a plurality of variables during the real-time simulation of the aircraft system and to analyze the effects thereof. The identification information and the variable value are extracted for the main variables included in the batch file, and the matching variable values are applied to the identified variables using the identification information.

When changing a plurality of main variable values of the subsystem constituting the simulation, the simulation can be performed for a large number of cases in a short time because it can be applied collectively.

Meanwhile, a computer-readable recording medium on which a program that can perform the system simulation control method according to the present invention can be provided.

As described above, according to the system simulation control method, the control apparatus, and the computer readable recording medium on which the program is recorded, the initial values of the main variables are defined and the values of the variables are changed during the simulation It is possible to grasp the transient response characteristics according to the change of related variables in real time. If there are many variables, it is possible to simulate many cases in a short time in the form of a batch job, have.

 While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, . It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

S100: applying to at least one subsystem,
S110: Identifying at least one variable
S120: Initializing the identified variable
S130: Step of extracting identification information and variable value information
S140: Step to apply to the identified variable
S200: Trim and Linearization Step
S300: Simulation start step,
S400: stop the simulation,
S410: extracting identification information and variable value information of a variable included in the new batch file
S420: Updating to a new variable value
S500: Step to resume simulation
10: Pilot module
20: Control law module
30: Driver module
40: Aircraft module
50: Sensor module
60: Disturbance module
100: batch file input unit
200: variable application part
300: variable changing section
400: system data loading section
500: Simulation execution unit
600:

Claims (8)

A simulation apparatus for performing real-time simulation of a predetermined system,
The method of claim 1, further comprising: when receiving a variable batch file that collectively defines at least one variable value included in at least one subsystem constituting a simulation environment, ;
Stopping the simulation upon detecting reception of a new variable batch file for changing the at least one variable value during a simulation in a time domain after performing a trim and a linearization process for the simulation;
Applying at least one variable value included in the new variable batch file to the at least one subsystem to update at least one variable value included in the system; And
And resuming the simulation from the point of interruption of the simulation using the updated at least one variable value. The method according to claim 1,
Wherein applying to the at least one subsystem comprises:
Identifying at least one variable included in the subsystem;
Initializing the identified variable;
Extracting identification information and variable value information of at least one variable value included in the variable batch file upon receiving the variable batch file; And
And applying a variable value matching the identified variable to the identified variable using the identification information, respectively. The method according to claim 1,
Wherein updating the at least one variable value comprises:
Extracting identification information and variable value information of at least one variable value included in the new variable batch file by executing the new variable batch file when it is detected that the simulation is stopped by stopping the simulation; And
And changing a variable value matched to each variable to a variable value extracted from a new variable batch file using the identification information. The method according to claim 1,
Wherein applying to the at least one subsystem comprises:
Wherein when at least one previously stored variable value exists, the variable value of the subsystem is changed to at least one variable value included in the received variable batch file. The method according to claim 1,
The step of interrupting the simulation comprises:
In the case of trim and linearization processing for simulation, when the variable values applied for the trim and linearization processing are stored in advance, the pre-stored variable values are changed to at least one variable value included in the received variable batch file And performing the trim and linearization processing. The method according to claim 1,
After resuming the simulation,
And outputting the derived analysis information according to the simulation result. A system data loading unit including at least one subsystem including at least one variable value and loading data of a predetermined system constituting a simulation environment;
A batch file receiving unit receiving a variable batch file and a new variable batch file collectively defining the at least one variable value;
A variable applying unit for applying, when receiving the variable batch file, at least one variable value included in the variable batch file to the at least one subsystem;
A simulation execution unit for loading the system data, performing a trim and linearization process for real-time simulation of a system to which the variable value is applied, and performing a simulation in a time domain;
Wherein, during the execution of the simulation, upon detection of receipt of a new variable batch file for changing the at least one variable value, the simulation is aborted, and the at least one variable value contained in the variable batch file Sub-system, updating at least one variable value included in the system, and transmitting a command to the simulation performing unit to resume the simulation from the stop point of the simulation using the updated at least one variable value ; And
And a storage for storing the result of the simulation. A simulation apparatus for performing real-time simulation of a predetermined system,
The method of claim 1, further comprising: when receiving a variable batch file that collectively defines at least one variable value included in at least one subsystem constituting a simulation environment, ;
Stopping the simulation upon detecting reception of a new variable batch file for changing the at least one variable value during a simulation in a time domain after performing a trim and a linearization process for the simulation;
Applying at least one variable value included in the variable batch file to the at least one subsystem to update at least one variable value included in the system; And
And resuming the simulation from an interruption point of the simulation using the updated at least one variable value.

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