Parametric Design Method and System for Electrical Systems Propelling Launch Vehicles
By using metadata definition and structured parameter design methods, rocket electrical system parameters are identified and combined, solving the problems of poor parameter scalability and weak coupling in traditional design. This achieves high efficiency, maintainability, and reliability of the electrical system, adapting to the rapid iteration R&D needs of commercial aerospace.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING LANDSPACETECH CO LTD
- Filing Date
- 2026-04-17
- Publication Date
- 2026-06-30
Smart Images
Figure CN122046557B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of parametric design of spacecraft electrical systems, and particularly relates to a parametric design method and system for electrical systems used to drive launch vehicles. Background Technology
[0002] Rocket electrical system parameters, combined with flight software, enable various functions of the rocket's ground testing and launch, as well as flight control. These parameters are crucial core parameters in rocket flight control. Rocket electrical system parameters involve multiple related professional requirements, including overall ballistic design, electrical parameters, GNC control parameters, and propulsion system timing. They constitute a complex and ever-changing system of data integrating multiple disciplines.
[0003] The number of parameters in a rocket's electrical system is large, and the requirements of different specialties vary. Moreover, the parameters of the electrical system are highly uncertain and are generally not finalized until the final stage of the rocket's development cycle. However, the electrical system parameters also need to participate in a large amount of early rocket development and testing work, which cannot adapt to the rapid iteration development process of commercial aerospace.
[0004] Traditional rocket electrical system parameter design involves simply allocating fixed storage areas for different specialties, placing corresponding parameters in a pre-agreed order, and then the flight software identifies these parameters according to this specific order, ultimately contributing to system functionality and achieving the goal of continuously optimizing the system design state through parameter adjustments. However, this model can only adapt to changes in parameter assignments. For parameter increases and subsequent order adjustments due to functional iterations during system development, the only solution is to modify the flight software. Changes to the flight software lead to a new round of code reviews and complete retesting of all rocket testing projects, increasing workload, increasing project delays, and posing new challenges to system stability and reliability. Furthermore, the physical meaning of traditional electrical system parameters is defined by binding their order, resulting in weak coupling between parameters, unclear interrelationships, and poor readability. For example, time nodes, control channels, and execution result formats are not directly related, data is scattered, and this is unfriendly to the maintenance and joint verification of parameters across different rocket system specialties, easily leading to parameter errors and flight failures. Summary of the Invention
[0005] The purpose of this invention is to provide a parameterized design method and system for electrical coefficients of launch vehicles, aiming to solve problems such as poor parameter expansion capability, parameter dispersion, weak coupling, and poor maintainability of electrical system parameters in traditional rocket system engineering.
[0006] The first aspect of this invention provides a parametric design method for an electrical system used to drive a launch vehicle, comprising:
[0007] Identify the electrical system parameter control objects used to drive the launch vehicle;
[0008] Determine the metadata attributes corresponding to the electrical system parameter control object; wherein, all metadata attributes are assignable parameters, and the corresponding metadata attributes support all attribute associations based on the reference timing.
[0009] Based on the corresponding metadata attributes, the electrical system parameter control objects are structurally combined with basic attributes to achieve parameterized design of the electrical system used to drive the launch vehicle, including:
[0010] Identify structured composite objects;
[0011] Based on the timing action starting from the predetermined timing reference corresponding to the structured composite object, the basic attributes corresponding to the structured composite object are determined, and the combination of the basic attributes is completed.
[0012] In some embodiments, the electrical system parameter control object includes at least two or more of the following: reference timing, timing string object, boost control object, motor control object, power diagnostic parameters, linear parameters, and redundancy control parameters.
[0013] In some embodiments, determining the metadata attributes corresponding to the electrical system parameter control object includes:
[0014] The metadata attributes corresponding to the reference timing sequence shall include at least two or more of the following: primary key, type, timing reference, and offset time.
[0015] The metadata attributes corresponding to the timing string object shall include at least two or more of the following: timing reference, offset time, control channel, and control action parameters;
[0016] The metadata attributes corresponding to the motor control object shall include at least two or more of the following: timing reference, type, offset time, motor channel, speed, and position parameters.
[0017] In some embodiments, the primary key in the basic attributes corresponding to the structured composite object is associated with the predetermined timing reference, and the basic attributes of the timing string object and the motor control object in the structured composite object are associated with the reference timing.
[0018] In some embodiments, determining the basic attributes corresponding to the structured composite object based on a timing action starting from a predetermined timing reference includes:
[0019] The structured composite object is determined to be the timing string corresponding to the reference timing sequence. The basic attributes of the timing string include bias time, control channel, and execution action.
[0020] The structured composite object is determined to be the motor control object corresponding to the reference timing. The basic attributes of the motor control object include timing reference, offset time, motor channel, speed, and position.
[0021] In some embodiments, after performing structured basic attribute combinations on the electrical system parameter control object based on the corresponding metadata attributes, the method further includes:
[0022] According to the flight timing control requirements of the launch vehicle, the timing actions starting from the predetermined timing reference corresponding to the structured combination object are added or deleted, or the timing actions are advanced or delayed by changing the offset time.
[0023] A second aspect of the present invention provides a parametric design system for an electrical system driving a launch vehicle, comprising:
[0024] The control object identification module is used to identify the control objects for electrical system parameters that drive the launch vehicle;
[0025] The metadata attribute determination module is used to determine the metadata attributes corresponding to the electrical system parameter control object; wherein, the metadata attributes are all assignable parameters, and the corresponding metadata attributes support all attribute associations based on time sequence;
[0026] The structured implementation module is used to perform structured basic attribute combinations on the electrical system parameter control objects based on the corresponding metadata attributes, so as to realize the parameterized design of the electrical system used to drive the launch vehicle.
[0027] A third aspect of the present invention provides a computer device, including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the above embodiments.
[0028] A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method described in the above embodiments.
[0029] A fifth aspect of the present invention provides a computer program product, including a computer program / instructions, which, when executed by a processor, implements the steps of the method described in the above embodiments.
[0030] This invention provides a parametric design method for electrical systems driving launch vehicles. By using metadata definition and structured parameter design for the electrical system parameter control objects, this method can greatly improve the scalability, coupling, maintainability and reliability of electrical system parameters. Attached Figure Description
[0031] Figure 1 This is a flowchart of a parametric design method for an electrical system used to drive a launch vehicle, according to an embodiment of the present invention.
[0032] Figure 2 This is an example diagram of the structured parameter format in an embodiment of the present invention;
[0033] Figure 3 This is a block diagram of a parametric design system for an electrical system used to drive a launch vehicle, according to an embodiment of the present invention. Detailed Implementation
[0034] Various embodiments and features of this application are described herein with reference to the accompanying drawings.
[0035] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.
[0036] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.
[0037] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.
[0038] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application.
[0039] To address the challenges of electrical system parameters in the current rocket development cycle and to adapt to the rapid iteration of commercial aerospace development processes, this invention proposes a design method of "parametric design, metadata-driven, and structured parameters" to identify parameterizable control objects as early as possible in the early stages of rocket electrical system development. This method can greatly improve the scalability, maintainability, and reliability of electrical system parameters.
[0040] This invention provides a method for designing electrical parameters for driving a launch vehicle, such as... Figure 1 As shown, the method includes:
[0041] S101 identifies the electrical system parameter control objects used to drive the launch vehicle;
[0042] Specifically, the parametric design of rocket electrical systems involves identifying objects that require parametric design, i.e., those with uncertainties, modification needs, or inconsistencies between test and flight mission parameters. Examples include reference timing sequences, timing string objects, pressurization control objects, motor control objects, power diagnostic parameters, linearity parameters, and redundancy control parameters.
[0043] S102, determine the metadata attributes corresponding to the electrical system parameter control object; wherein, the metadata attributes are all assignable parameters, and the corresponding metadata attributes support all attribute associations based on time sequence;
[0044] Specifically, logical abstraction is performed on objects that require parametric design, and their metadata attributes are defined. All key attributes are assignable parameters, which should support association, and different objects should have different attributes.
[0045] S103, based on the corresponding metadata attributes, perform structured basic attribute combinations on the electrical system parameter control objects to achieve parameterized design of the electrical system used to drive the launch vehicle, including:
[0046] Identify structured composite objects;
[0047] Based on the timing action starting from the predetermined timing reference corresponding to the structured composite object, the basic attributes corresponding to the structured composite object are determined, and the combination of the basic attributes is completed.
[0048] In other words, the electrical system parameters are defined using metadata and a structured design, taking into account the application requirements of the rocket system. First, the electrical system parameters are defined using metadata, coupling elements such as timing, control objectives, and action types together with time nodes as the longitudinal axis; then, the control object model is extracted and structured and parametrically designed; finally, this is extrapolated to other control objects in the rocket system.
[0049] Compared with existing technologies, the technical solution of this invention can greatly improve the scalability, coupling, maintainability and reliability of electrical system parameters by using metadata definition and structured parameter design for the electrical system parameter control object. In other words, the structured parameter design of electrical system can significantly and effectively reduce the technical status control risks caused by software changes.
[0050] Based on the above embodiments, the electrical system parameter control object includes at least two or more of the following: reference timing, timing string object, boost control object, motor control object, power diagnostic parameters, linear parameters, and redundancy control parameters.
[0051] In other words, the structured parameters of an electrical system include objects such as reference timing, timing string objects, boost control objects, motor control objects, power diagnostic parameters, linear parameters, and redundancy control parameters.
[0052] Based on the above embodiments, determining the metadata attributes corresponding to the electrical system parameter control object includes:
[0053] The metadata attributes corresponding to the reference timing sequence shall include at least two or more of the following: primary key, type, timing reference, and offset time.
[0054] The metadata attributes corresponding to the timing string object shall include at least two or more of the following: timing reference, offset time, control channel, and control action parameters;
[0055] The metadata attributes corresponding to the motor control object shall include at least two or more of the following: timing reference, type, offset time, motor channel, speed, and position parameters.
[0056] It should be noted that identifying and defining control objects and metadata, such as Figure 2 As shown, taking the reference timing sequence, timing string object, and motor control object as examples in the electrical system parameter control object, the metadata attributes corresponding to the reference timing sequence (as shown in Table 1) and the metadata attributes corresponding to the timing string object and motor control object (as shown in Table 2 and Table 3) are given, and the three are associated through the metadata attribute primary key.
[0057] Table 1. Baseline Time Series Metadata
[0058]
[0059] Table 2. Metadata of Time Series String Objects
[0060]
[0061] Table 3. Metadata of Motor Control Objects
[0062]
[0063] The parameter object instantiation is shown in Table 4 below: Taking the example of interstage separation and second-stage primary ignition during flight, the parameterization design is carried out according to the aforementioned model and method.
[0064] Table 4 Parameter Object Instantiation
[0065]
[0066] It's important to note that timing string objects and motor control objects (as well as other objects) are control objects for the reference timing. However, each reference timing may not necessarily include all objects every time. For example, in the example, Tf12 only contains timing string objects, while Td21 includes both timing string objects and motor control objects. Each object uses the reference timing as a reference and performs the corresponding timing actions according to the designed delay time. Reference timing can also refer to other reference timings; for instance, in the example, Td21 references Tf12.
[0067] If the primary key of the reference timing is defined as the event name, such as Td21 representing secondary primary ignition, the primary key code is a unique ID for the reference timing, facilitating software identification and lookup. The timing reference is based on the previous defined associated reference timing.
[0068] Based on the above embodiments, the primary key in the basic attributes corresponding to the structured composite object is associated with the predetermined timing reference, and the basic attributes of the timing string object and the motor control object in the structured composite object are associated with the reference timing.
[0069] Based on the above embodiments, the step of determining the basic attributes corresponding to the structured composite object based on the timing action starting from the predetermined timing reference corresponding to the structured composite object includes:
[0070] The structured composite object is determined to be the timing string corresponding to the reference timing sequence. The basic attributes of the timing string include timing reference, offset time, control channel, and execution action.
[0071] The structured composite object is identified as the motor control object, and the basic attributes of the motor control object include timing reference, type, offset time, motor channel, speed, and position.
[0072] It should be noted that, in combination Figure 2 As shown, the controlled object is designed in a structured manner. For example, a timing string is a structured composite object, which is a series of timing actions corresponding to a certain reference timing. The basic attributes of its "timing string" are defined as timing reference, offset time, control channel, and execution action. The timing reference is the primary key of the "reference timing", and it is associated with the reference timing through the primary key. The offset time is the delay time relative to the time point after the primary key. The control channel represents, for example, the channel of the igniter or solenoid valve. The execution action represents the opening and closing of the igniter or solenoid valve.
[0073] Similarly combined Figure 2As shown, other control objects in the electrical system are then structured. Different objects may have different attributes. For example, the attributes of a motor control object include the timing reference, which is also the primary key of the "reference timing". The primary key links the two objects together. The type is used to distinguish between stepper and servo motor types. The bias time is the delay time relative to the time point after the primary key. The control channel represents different motor channels. The speed is used to define the speed of the motor towards the target position. The position is used to define the final target position of the motor in this command.
[0074] The corresponding encoding is shown in Table 5:
[0075] Table 5 Parameter Types and Corresponding Codes
[0076]
[0077] Based on the above embodiments, after performing structured basic attribute combinations on the electrical system parameter control object according to the corresponding metadata attributes, the method further includes:
[0078] According to the flight timing control requirements of the launch vehicle, the timing actions starting from the predetermined timing reference corresponding to the structured combination object are added or deleted, or the timing actions are advanced or delayed by changing the offset time.
[0079] In other words, through the above-mentioned structured parameter definition, control actions can be flexibly added or removed by adjusting the "length of the controlled object" according to the rocket flight timing control requirements. The bias time parameter can also be changed to easily advance or delay the timing actions.
[0080] By following the above process, the electrical system parameters can be designed in a structured manner, which allows for flexible adjustment of the electrical system parameters and effectively reduces the risk of modification.
[0081] like Figure 3 As shown in the figure, an embodiment of the present invention provides an electrical parameter design system for driving a launch vehicle, the system comprising:
[0082] The control object identification module 301 is used to identify the control object of the electrical system parameters used to drive the launch vehicle;
[0083] Metadata attribute determination module 302 is used to determine the metadata attributes corresponding to the electrical system parameter control object; wherein, the metadata attributes are all assignable parameters, and the corresponding metadata attributes support all attribute associations based on time sequence;
[0084] The structured implementation module 303 is used to perform structured basic attribute combinations on the electrical system parameter control objects based on the corresponding metadata attributes, so as to realize the parameterized design of the electrical system used to drive the launch vehicle.
[0085] Compared with existing technologies, the technical solution of this invention can greatly improve the scalability, coupling, maintainability and reliability of electrical system parameters by using metadata definition and structured parameter design for the electrical system parameter control object. In other words, the structured parameter design of the electrical system can significantly and effectively reduce the risks caused by parameter changes.
[0086] In summary, the innovative aspects of the technical solution of this invention are as follows:
[0087] 1) Design of metadata method for electrical system parameters, which associates all control objects of the rocket through metadata;
[0088] 2) Structured design of electrical system parameters: By structuring the controlled objects, the timing, control objectives and execution actions are organized.
[0089] The beneficial effects of the technical solution of this invention are as follows:
[0090] 1. It achieves scalability and maintainability of electrical system parameters, improves design efficiency, and reduces the risk of system state control caused by software changes;
[0091] 2. Structured design defines the contextual relationships between parameters, making it easier for designers to maintain and verify them.
[0092] Based on the above embodiments, this invention provides a computer device including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the above embodiments.
[0093] In some embodiments of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the method described in the above embodiments.
[0094] In some embodiments of the present invention, a computer program product is provided, including a computer program / instructions, which, when executed by a processor, implements the steps of the method described in the above embodiments.
[0095] The processor may include, but is not limited to, one or more processors or microprocessors. Each processor may be implemented as an Application Specific Integrated Circuit (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSPD), Programmable Logic Device (PLD), Field Programmable Gate Array (FPGA), controller, microcontroller, microprocessor, or other electronic component, for executing the methods in the above embodiments.
[0096] Computer-readable storage media can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Computer-readable storage media may include, but are not limited to, random access memory (RAM), read-only memory (ROM), flash memory, EPROM memory, EEPROM memory, registers, and computer storage media (e.g., hard disks, floppy disks, solid-state drives, removable disks, CD-ROMs, DVD-ROMs, Blu-ray discs, etc.).
[0097] Computer-readable storage media may also store at least one computer-executable program / instruction, such as computer-readable instructions. Computer-readable storage media include, but are not limited to, volatile memory and / or non-volatile memory. Volatile memory may include, for example, random access memory (RAM) and / or cache memory. Computer-readable storage media may include, for example, read-only memory (ROM), hard disk, flash memory, etc. For example, a non-transitory computer-readable storage medium may be connected to a computing device such as a computer, and then, when the computing device executes the computer-readable instructions stored on the computer-readable storage medium, the various methods described above can be performed.
[0098] In addition, the computer device may include (but is not limited to) a data bus, an input / output (I / O) bus, a display, and input / output devices (e.g., keyboard, mouse, speakers, etc.).
[0099] The processor can communicate with external devices via the I / O bus through wired or wireless networks.
[0100] In one embodiment, the at least one computer-executable instruction may also be compiled into or comprise a software product / computer program product, wherein one or more computer-executable instructions are executed by a processor to perform the steps of the various functions and / or methods in the embodiments described herein.
[0101] Those skilled in the art will understand that all or part of the steps of the methods described above can be implemented by a program instructing related hardware. The program can be stored in a readable storage medium, and when executed, the program includes one or a combination of the steps of the method implementation.
[0102] In the various embodiments of this application, the functional units can be integrated into a single processing module, or each unit can exist physically separately, or two or more units can be integrated into a single module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a readable storage medium. The storage medium can be a read-only memory, a disk, or an optical disk, etc.
[0103] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments / modes or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.
[0104] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0105] Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this application. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this application.
Claims
1. A method for parametric design of electrical system for launch vehicle, characterized in that, include: Identify the electrical system parameter control objects used to drive the launch vehicle; the electrical system parameter control objects include at least two or more of the following: reference timing, timing string object, pressurization control object, motor control object, power diagnostic parameters, linear parameters, and redundancy control parameters; Determine the metadata attributes corresponding to the electrical system parameter control object, including: The metadata attributes corresponding to the reference timing sequence shall include at least two or more of the following: primary key, type, timing reference, and offset time. The metadata attributes corresponding to the timing string object shall include at least two or more of the following: timing reference, offset time, control channel, and control action parameters; The metadata attributes corresponding to the motor control object shall include at least two or more of the following: timing reference, type, offset time, motor channel, speed, and position parameters; All of the metadata attributes are assignable parameters, and the corresponding metadata attributes support all attribute associations based on time series. Based on the corresponding metadata attributes, the electrical system parameter control objects are structurally combined with basic attributes to achieve parameterized design of the electrical system used to drive the launch vehicle, including: Identify structured composite objects; Based on the timing action starting from the predetermined timing reference corresponding to the structured composite object, the basic attributes corresponding to the structured composite object are determined, and the combination of the basic attributes is completed.
2. The method according to claim 1, characterized in that, The primary key in the basic attributes corresponding to the structured composite object is associated with the predetermined timing reference, and the basic attributes of the timing string object and the motor control object in the structured composite object are associated with the reference timing.
3. The method according to claim 2, characterized in that, The determination of the basic attributes corresponding to the structured composite object based on the timing action starting from the predetermined timing reference corresponding to the structured composite object includes: The structured composite object is determined to be the timing string corresponding to the reference timing sequence. The basic attributes of the timing string include bias time, control channel, and execution action. The structured composite object is identified as the motor control object, and the basic attributes of the motor control object include timing reference, type, offset time, motor channel, speed, and position.
4. The method according to claim 3, characterized in that, After performing structured basic attribute combinations on the electrical system parameter control object based on the corresponding metadata attributes, the method further includes: According to the flight timing control requirements of the launch vehicle, the timing actions starting from the predetermined timing reference corresponding to the structured combination object are added or deleted, or the timing actions are advanced or delayed by changing the offset time.
5. A parametric design system for an electrical system used to drive a launch vehicle, characterized in that, include: The control object identification module is used to identify the electrical system parameter control objects used to drive the launch vehicle; the electrical system parameter control objects include at least two or more of the following: reference timing, timing string object, boost control object, motor control object, power diagnostic parameters, linear parameters, and redundancy control parameters. The metadata attribute determination module is used to determine the metadata attributes corresponding to the electrical system parameter control object, including: The metadata attributes corresponding to the reference timing sequence shall include at least two or more of the following: primary key, type, timing reference, and offset time. The metadata attributes corresponding to the timing string object shall include at least two or more of the following: timing reference, offset time, control channel, and control action parameters; The metadata attributes corresponding to the motor control object shall include at least two or more of the following: timing reference, type, offset time, motor channel, speed, and position parameters; All of the metadata attributes are assignable parameters, and the corresponding metadata attributes support all attribute associations based on time series. The structured implementation module is used to perform structured basic attribute combinations on the electrical system parameter control objects based on the corresponding metadata attributes, so as to realize the parameterized design of the electrical system used to drive the launch vehicle.
6. A computer device, comprising a memory, a processor, and a computer program stored in the memory, characterized in that, The processor executes the computer program to implement the steps of the parametric design method for an electrical system for driving a launch vehicle as described in any one of claims 1 to 4.
7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the parametric design method for an electrical system for driving a launch vehicle as described in any one of claims 1 to 4.
8. A computer program product comprising a computer program / instructions, characterized in that, When executed by a processor, the computer program implements the steps of the parametric design method for an electrical system for driving a launch vehicle as described in any one of claims 1 to 4.