KR20180032033A - Apparatus and method for controlling simulation of satellite operation - Google Patents

Abstract

Provided is a satellite operation simulation control device for controlling simulation with respect to remote measurement data of a satellite based on a scenario. The device comprises: an execution unit configured to execute at least one first command related to a first script inputted from a user interface; and a processing unit configured to generate at least one first measurement data in a driving environment set in correspondence with the first command.

Description

[0001] APPARATUS AND METHOD FOR CONTROLLING SIMULATION OF SATELLITE OPERATION [0002]

And more particularly to an apparatus and method for controlling simulation of telemetry data of a satellite based on a scenario.

For large operating systems such as satellites, it is common for simulators to be used for early operational rehearsals or operator training. If you rehearse or train using a real system rather than a simulator, the system may be exposed to direct danger. However, a simulator applied to a large-scale operating system must consider not only the complicated modeling process of the system itself, but also various complex environmental conditions in which the system operates, thereby increasing cost and time for modeling and verification for system simulation There is no other choice.

In addition, scenarios in which various scenarios are assumed for initial operation rehearsal and operator training of the system are required, but it is difficult to develop and verify various scenarios due to complicated system and environmental conditions.

To overcome these limitations to reduce the complexity of the system simulation process and the cost of modeling and verification for simulation, it is necessary to simulate only the parts where the operator interface is directly connected to the system, .

According to one aspect, there is provided a satellite operating simulation control apparatus for controlling simulation of telemetry data of a satellite based on a scenario. The apparatus comprising: an execution unit that executes at least one first instruction associated with a first script input from a user interface; and an execution unit configured to execute at least one first instruction in a driving environment set corresponding to the first instruction, And a processing unit for generating one measurement data.

According to one embodiment, the processing section may determine the predetermined period based on a set time controlled by the execution section.

In addition, the processing unit may repeat the output of the at least one first measurement data in packets in a predetermined order.

According to an embodiment, the processing unit may manage the first measurement data for each script to be executed.

According to one embodiment, the apparatus further comprises: a management unit for managing a database in which the first measurement data in the driving environment is stored, wherein the processing unit is configured to receive, from the database, the first measurement data corresponding to the first instruction Lt; / RTI >

Here, the database may store a measurement code assigned to each type of measurement data generated in the driving environment and a value corresponding to the measurement code.

According to one embodiment, the database may include a total value list DB storing rules set for each measurement code, a rule table defining a settable data characteristic per rule, (Variable DB) for storing a value of a code defined by a time function among the measurement codes and data to be loaded according to a driving environment And a packet list database (Packet List DB).

According to another aspect, there is provided a method of controlling simulation of telemetry data of a satellite based on a scenario. The method comprising the steps of: executing at least one first instruction associated with a first script input from a user interface, and generating at least one first instruction in a driving environment set corresponding to the first instruction in accordance with a pre- And generating measurement data.

According to an embodiment, the step of generating the first measurement data may include: forming the packets of the at least one first measurement data in a predetermined order and repeatedly outputting the packets.

According to one embodiment, the step of generating the first measurement data comprises: loading the first measurement data corresponding to the first instruction from a database storing first measurement data in the driving environment.

The database may store a measurement code assigned to each kind of measurement data generated in the driving environment and a value corresponding to the measurement code.

According to one embodiment, the database includes: a total value list DB storing rules set for each measurement code; a rule table defining a settable data characteristic for each rule; A static database (Static DB) for storing a value of a code for which a fixed value is defined; a variable database (Variable DB) for storing a value of a code defined by a time function in the measurement code; And a Packet List DB.

FIG. 1 is a diagram for explaining the structure and execution method of a general large-scale operating system.
2 is a block diagram illustrating a satellite operational simulation control apparatus in accordance with one embodiment.
3 is a diagram illustrating a detailed structure of a simulation control apparatus that is operated based on an input script according to an embodiment.
4 is a view for explaining a process of generating measurement data corresponding to an operation script according to an embodiment.
5 is a view for explaining a control command executed in response to an operation script according to an embodiment.
6 is a flowchart illustrating a method of controlling a satellite operation simulation according to an embodiment.

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are presented for the purpose of describing embodiments only in accordance with the concepts of the present invention, May be embodied in various forms and are not limited to the embodiments described herein.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. However, it is not intended to limit the embodiments according to the concepts of the present invention to the specific disclosure forms, but includes changes, equivalents, or alternatives falling within the spirit and scope of the present invention.

The terms first, second, or the like may be used to describe various elements, but the elements should not be limited by the terms. The terms may be named for the purpose of distinguishing one element from another, for example without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, Similarly, the second component may also be referred to as the first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Expressions that describe the relationship between components, for example, "between" and "immediately" or "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ", or" having ", and the like, are used to specify one or more of the features, numbers, steps, operations, elements, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference symbols in the drawings denote like elements.

FIG. 1 is a diagram for explaining a structure and an execution method of a general large-scale operating system. FIG. 1a shows a structure of a simulator for performing a simulation of a large-scale operating system, and FIG. 1b shows an operator interface operated in a simulation execution process.

In general, in order to implement a simulator that is applied for operation rehearsal or operator training of a large operating system, the complexity of the system itself as well as the environmental conditions in which the system operates should be considered. In addition, for the simulation implementation, it is necessary to develop a scenario for the function to be tested or to be trained through the simulation, and to perform a modeling work based on the scenario. In this process, a wide understanding of the simulator designer or the scenario developer for the system and the environmental condition is required. However, since the functions or data streams used for actual satellite operation are created based on complex computations, the simulation modeling process is also complicated and difficult to implement.

The simulator shown in FIG. 1A includes a GUI 110 in which a scenario for a function to be verified by the operator or a control command related thereto is inputted, a core module 120 for performing functions required in a system simulation process, and a modeling module 130). Blocks indicated by solid lines in FIG. 1A are core components that provide essential basic functions required in the simulator implementation, and blocks indicated by dashed lines can be respectively understood as components configurable by the operator (or designer) according to the simulation purpose. The GUI 110 includes an external application 112 that provides interoperation with other programs external to the system, an external application 112 that supports the communication with the operator, Specific MMIs (MMIs) 113 and SAT3Ds 114, which provide a more varied interface in accordance with the MMI. The core module 120 includes a scheduler 121, a logger 122, a time keeper 123, and a scheduler 123, which provide basic functions such as schedule / time / data / A Script Host 124 and a Data Provider 125 and a Spacecraft SMI Adapter 126 for interworking with a modeling module configured for telemetry of the satellite and a Ground SMI Adapter (Ground SMI Adapter). The modeling module 130 is a part adapted to suit the characteristics of the satellite to be simulated and includes a Mission Specific Spacecraft Models 131, Emulators 132, SENSE 133, PEMs 134, a SIMPACK 135, and an ESA ground model 136, and the like. In order to implement a simulator for a satellite system as shown in FIG. 1A, it is necessary to acquire knowledge of the system and the operator and the designer about the environmental conditions in which the system operates, and also to perform modeling work on a link system or function to be linked in the simulation process Therefore, it takes much time and cost in the process of implementing the simulator.

Also, even if a simulator is implemented as shown in FIG. 1A, since an operation scenario or a control command must be input based on a complicated calculation formula in order to test and verify a function or a data stream used in actual satellite operation, The provided operator interface also becomes complicated as shown in FIG. 1B.

2 is a block diagram illustrating an apparatus 200 for controlling satellite operation simulation according to one embodiment.

The satellite operation simulation control device 200 is a means for controlling the simulation of the telemetry function of a large operating system such as a satellite. It does not model the entire complex large operating system but only simulates the part where the operator interface is directly connected to the system So that the complexity of the system simulation process and the cost required for modeling and verification for the simulation can be reduced. The satellite operation simulation control apparatus 200 may include an execution unit 210, a processing unit 220, and a management unit 230. However, the management unit 230 is an optional configuration, and in some embodiments, the management unit may be omitted.

First, the execution unit 210 may execute at least one first instruction associated with the first script input from the user interface. Here, the first script is a scenario for simulating various situations that may occur in actual satellite operation, and is designed to correspond to functions or situations that the user desires to test and verify, thereby preparing for an abnormal situation. The first command may be understood as a control command for setting a system and an environmental condition corresponding to the first script, and it is implemented in advance in advance to meet the situation simulating the first script. For example, in order to simulate a situation where solar power production is not good, the power generation in the solar panel can be lowered by adjusting the data to set a condition in which the sun is not visible, and a control command for this can be inputted.

The processing unit 220 may generate at least one first measurement data in a driving environment set corresponding to the first instruction word according to a predetermined period. At this time, the processing unit 220 can determine the predetermined period based on the set time controlled by the execution unit 210. [ In addition, the processing unit 220 configures the at least one first measurement data into packets in a predetermined order and repeatedly outputs the packets, and classifies the first measurement data (or the output packet) for each executed script Can be managed. The processing unit 220 generates the first measurement data by loading data corresponding to the first instruction word from the database storing the first measurement data.

The management unit 230 manages the database storing the first measurement data in the driving environment set corresponding to the first script. In this case, the database stores a measurement code assigned to each type of measurement data generated in the driving environment and a value corresponding to the measurement code, and includes a total value list DB, a rule table, A static database, a variable database, and a packet list DB. The entire list database stores rules set for each measurement code, and the rule table defines configurable rule-specific data characteristics. Also, the static database stores a value of a code in which a fixed value is defined among the measurement codes, and the variable database stores a value of a code defined by a time function in the measurement code, You can define the data to be loaded per environment. The types and configuration relationships of the databases are merely one embodiment, and may be configured in various ways depending on the purpose of the simulation and the implementation method.

The satellite operation simulation control apparatus 200 implements the simulation so that only the portion where the operator interface is directly connected to the system without modeling the entire large system reduces the complexity of the simulation process, Data acquisition and test verification is possible for a variety of situations, without knowledge of the condition or understanding of complex calculations. Further, the satellite operating simulation control apparatus 200 may significantly reduce the time and cost of modeling and verification for simulation.

3 is a diagram illustrating a detailed structure of a simulation control apparatus that is operated based on an input script according to an embodiment.

The script-based simulation control apparatus 300 shown in FIG. 3 is a device for controlling a simulation process related to telemetry of a satellite based on a script input from a user and includes an operation interface 310, a telemetry data builder 320, And a table management unit 330. FIG. In FIG. 3, CMD (Command) is a command generated and executed according to execution of an operation script, and TLM (Telemetry) means telemetry data generated as a result of executing the operation script and the command.

The operation interface 310 is a means for providing a communication function with a user, such as receiving a simulated script or a control command of a user to test and verify in a simulation process, and the simulation control device 300 When used for operator training, it can be used as an operational training tool. The operation interface 310 performs editing (311) and execution (312) of the input operation script, and when the operation script is executed, at least one control command associated with the executed script is transmitted to the telemetry data builder 320, Lt; / RTI >

The telemetry data builder 320 generates telemetry data of the satellite according to a predetermined period or event based on the system time controlled by the operation interface 310, Manage by script. The remote measurement data builder 320 will be described in detail with reference to FIG.

4 is a diagram illustrating a process in which the telemetry data builder 400 generates measurement data corresponding to an operation script according to one embodiment.

The telemetry data builder 400 generates telemetry data when a script input from the operational interface and the associated control commands are executed. The generated telemetry data may be generated in frames every predetermined period based on the OBT clock 401 of the telemetry data builder 400. [ The telemetry data builder 400 may generate the telemetry data in a manner that loads data from a database that stores measurement codes and corresponding values, etc., assigned for each type of measurement data in each driving environment.

Referring to FIG. 4, the entire list 410 defines rules set for each measurement code (TLM Mnemonic) assigned to each telemetry data, and the rule is defined by a rule table 430. The rules table 430 defines configurable data characteristics for each rule, which can be described as Table 1 below.

Depending on the rules set for each measurement code in the overall list 410, the telemetry data may include at least one of a static DB 420, a variable DB 440, a user defined function or script, a user loading file, Lt; / RTI > The static DB 420 stores a value of a code in which a fixed value is defined among the measurement codes, and the variable DB 440 stores a value of a code defined by a time function in the measurement code.

In addition, the packet list database (not shown) defines the data to be loaded for each driving environment, the order of packets to be transmitted in a frame every predetermined period, and the Freeze value list 450 defines * Freeze command And temporarily store the value of the code temporarily defined by the user. Freeze is a command that fixes the value of a specific measurement code to a specific value for a certain period of time. After a certain period of time, the fixed value is released. However, even if a certain period of time has not elapsed, the value stored temporarily by * Freeze is immediately reset and reset when the * Melt command is executed. * Freeze and * Melt control commands will be described in detail with reference to FIG. 5 below.

In the shared memory 460, a measurement code of measurement data to be included in a frame generated in the driving environment, a value corresponding thereto, and a bit size value are allocated. A value corresponding to the measurement code may be obtained from the total list 410 or the Freeze value list. For example, if the value of the measurement code to be fetched from the shared memory 460 is defined as a rule value of '0' in the total list 410, this means that a fixed value is defined, Load the stored value. Similarly, if the value of the measurement code to be fetched from the shared memory 460 is defined in the entire list 410 as a rule value '1' meaning a value variably defined by the time function, the value of the measurement code is variable And loads the value stored in the DB 440. However, if there is a code value temporarily defined by the * Freeze command, the value is fetched from the Freeze value list 450 instead of the entire list 410 for a certain time inputted together with the * Freeze command.

The values loaded from the shared memory 460 may be composed of frames and generated (470) at regular intervals. The measurement code value assigned to each byte position of the frame is defined by a packet list database loaded in the driving environment set according to the operation script or a predetermined packet sequence.

Referring again to FIG. 3, the table management unit 330 manages at least one database, a list, a table, and the like, which are referred to in the process of generating telemetry data of the telemetry data builders 320 and 400. In addition to editing / managing the contents of the static DB and the variable DB, the table management unit 330 loads the playback data of the file or the system loaded by the user, (CMD), telemetry data (TLM), and packets into the database of the simulation system.

5 is a view for explaining a control command executed in response to an operation script according to an embodiment.

The operating script used in the simulation for the system is a scenario simulating various situations that can occur in the operation of the system such as an actual satellite, and is prepared to correspond to functions or situations that the user wants to test and verify. When a specific script is input through the user interface, the control commands generated in response to the specific script are sequentially executed, and it can be implemented in advance so as to match the situation simulated in the script.

Referring to FIG. 5, representative two types of control commands executed in response to the operation script can be identified. First, * Freeze is a command to fix specific measurement data to a specific value for a certain period of time. TASTATUS1 "," 10sec "," OFF "> command is executed such that the value of" TASTATUS1 "is displayed as" OFF "for 10 seconds. The Freeze command is defined as a method of newly adding specific measurement data and corresponding specific values to a separately managed list (or database), such as a 'Freeze value list' 450 shown in FIG. 4, The function of temporarily changing the value setting path to fetch the value of the specific measurement data recorded in the memory 460 from the Freeze value list 450 instead of the entire list 410. [ When the input time elapses at the time of execution of the Freeze command, the value of the specific measurement data is again taken from the entire list 410.

On the other hand, * Melt is a command that immediately initializes a specific measurement fixed by * Freeze. When a command of <* Melt "TASTATUS1"> is executed as in 530, the specific value for the specific measurement data fixed by the * Freeze command at 510 is deleted and reset as before the * Freeze command is executed. The * Melt command is defined as a method of deleting the specific measurement data stored in the freeze value list 450 and the corresponding specific value. Even if the input time does not elapse during execution of the * Freeze command, And changing the setting path of the value so that the value of the specific measurement data to be recorded is retrieved again from the total list 410. [

5, when the instruction of <* Freeze "TASTATUS1", "10sec", "OFF"> 510 is executed, the value of "TASTATUS1" is set to "OFF" for 10 seconds. "Verify TLM" TASTATUS1 "" ON "> (520) command to check whether the value of" TASTATUS1 "is" ON "is displayed as" Verify FAIL "because it is different from the currently set TASTATUS1. However, when a command of <* Melt "TASTATUS1"> 530 is additionally executed, a fixed value for "TASTATUS1" is initialized and then <Verify TLM> TASTATUS1 "" ON "> (540) When the command is input," Verify OK "is displayed because it is same as the currently set" TASTATUS1 "value.

In addition to the above two grammars, various control commands for changing the set values of the system during the simulation process can be additionally implemented. For example, * SET ACCEPT Counter to set the command acknowledge counter value, * SET REJECT Counter to set the command rejection counter value, and * SET REJECT Counter Increase command to increase the command rejection counter value by 1. In addition, a "System Time Control" command may be added to control the system setting time to increase by a certain amount when the operating script is executed. When the operating time script is declared as a specific time in the operating script, (For example, current system setting time + time adjustment value).

6 is a flowchart illustrating a method of controlling a satellite operation simulation according to an embodiment.

The satellite operation simulation control device provides a method for controlling the simulation of the telemetry function of a large operating system, such as a satellite, based on a pre-written scenario for the situation to be tested and verified.

In step 610, the execution unit of the satellite operational simulation control apparatus may execute at least one first instruction associated with the first script input from the user interface. Here, the first script is a scenario for simulating various situations that may occur in actual satellite operation, and the first command is a control command for setting a system and an environmental condition corresponding to the first script, May be implemented in advance in advance to match the situation simulated in the first script.

In step 620, the processing unit of the satellite operating simulation control apparatus may generate at least one first measurement data in a driving environment in which the processing unit is set corresponding to the first instruction according to a predetermined period. In step 620, the processing unit may determine the predetermined period based on the set time controlled by the execution unit. In addition, the processor configures the at least one first measurement data in packets in a predetermined order and outputs it repeatedly, and classifies and manages the first measurement data (or the output packet) for each executed script have.

In step 620, the processing unit generates the first measurement data by loading data corresponding to the first instruction from a database storing measurement data in a driving environment set corresponding to the first script, May be managed by the management unit of the satellite operation simulation control apparatus. Here, the database stores a measurement code assigned to each type of measurement data generated in the driving environment and a value corresponding to the measurement code, and includes a total value list DB, a rule table, And may include at least one of a database (Static DB), a variable database (Variable DB), and a packet list database (Packet List DB). The entire list database stores rules set for each measurement code, and the rule table defines configurable rule-specific data characteristics. Also, the static database stores a value of a code in which a fixed value is defined among the measurement codes, and the variable database stores a value of a code defined by a time function in the measurement code, You can define the data to be loaded per environment. The types and configuration relationships of the databases are merely one embodiment, and they can be configured in various ways according to the purpose of the simulation or the implementation method.

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. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI &gt; or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (14)

An execution unit that executes at least one first instruction associated with a first script input from a user interface; And
A processing unit for generating at least one first measurement data in a driving environment set corresponding to the first instruction word according to a predetermined period;
And a satellite operating simulation control unit. The method according to claim 1,
Wherein,
And determines the predetermined period based on a set time controlled by the execution unit. The method according to claim 1,
Wherein,
Wherein the at least one first measurement data is composed of packets in a predetermined order and is repeatedly output. The method according to claim 1,
Wherein,
Wherein the first measurement data is managed for each script to be executed. The method according to claim 1,
A management unit for managing a database in which the first measurement data in the driving environment is stored;
Further comprising:
Wherein the processing unit loads the first measurement data corresponding to the first instruction from the database. 6. The method of claim 5,
The database includes:
And stores a measurement code assigned to each type of measurement data generated in the driving environment and a value corresponding to the measurement code. The method according to claim 6,
The database includes:
A total value list DB storing a rule set for each measurement code, a rule table defining a settable data characteristic for each rule, a value of a code defining a fixed value among the measurement codes, A Variable DB for storing a value of a code defined by a time function among the measurement codes and a Packet List DB for defining data to be loaded according to the driving environment, At least one satellite operating simulation control device. Executing at least one first instruction associated with a first script input from a user interface; And
Generating at least one first measurement data in a driving environment set corresponding to the first instruction in accordance with a predetermined period
And the satellite operating simulation control method. 9. The method of claim 8,
Wherein the generating the first measurement data comprises:
Constructing the at least one first measurement data in a predetermined order and repeatedly outputting
And the satellite operating simulation control method. 9. The method of claim 8,
Wherein the generating the first measurement data comprises:
Wherein the first measurement data corresponding to the first instruction is loaded from a database storing first measurement data in the driving environment. 11. The method of claim 10,
The database includes:
And storing a measurement code assigned to each type of measurement data generated in the driving environment and a value corresponding to the measurement code. 12. The method of claim 11,
The database includes:
A total value list DB storing a rule set for each measurement code, a rule table defining a settable data characteristic for each rule, a value of a code defining a fixed value among the measurement codes, A Variable DB for storing a value of a code defined by a time function among the measurement codes and a Packet List DB for defining data to be loaded according to the driving environment, RTI ID = 0.0 &gt; 1, &lt; / RTI &gt; 9. The method of claim 8,
Storing and managing said at least one first measurement data for each executed script
Further comprising the steps of: 13. A program for controlling simulation of a satellite operation stored in a recording medium, the program being executed in a computing system,
A set of instructions for executing at least one first instruction associated with a first script input from a user interface; And
Generating at least one first measurement data in a driving environment set corresponding to the first instruction in accordance with a predetermined period,
Satellite simulation simulation control program.

Images