A satellite-borne digital processing unit and a design method for a satellite-borne digital processing unit

Abstract

The present invention relates to the field of satellite-borne stand-alone technology, and in particular to a satellite-borne digital processing stand-alone and a design method for the satellite-borne digital processing stand-alone. It includes: a plurality of baseband modules, at least two integrated control modules, a power module and an interface board module; wherein each module is an independent board card; each baseband module is electrically connected to each integrated control module, the baseband module is used for digital information processing, each baseband module is backed up for each other, and the number of baseband modules is greater than the demand for baseband modules when the maximum function is achieved, so that the excess baseband modules are also used as backups; each integrated control module is connected to the interface board module, and the integrated control module is used for function control and resource scheduling. This solution subdivides the whole machine into different independent board card modules, and at the same time disassembles the baseband resources into smaller baseband modules. Compared with the traditional stand-alone machine, it can reduce the redundancy of resource backup and avoid the whole machine from being repaired or scrapped.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of satellite-borne stand-alone machines, and in particular to a satellite-borne digital processing stand-alone machine and a design method for the satellite-borne digital processing stand-alone machine. Background Art

[0002] The rise of low-orbit satellite Internet, 5G NTN (non-terrestrial networks) and 6G space-ground integrated network concepts have greatly promoted the development of the communication satellite industry at home and abroad. As the key core unit of communication satellites, satellite-borne baseband products are responsible for digital signal processing and forwarding of the entire satellite communication system, communication system function planning and control, information flow control and other key functions. In the future, satellite-borne digital processing units will also integrate various functions such as satellite platform processors, attitude and orbit control processors, and measurement and control receivers to form an integrated satellite platform design. The functions will become more and more complex, and the requirements for unit size, power consumption, hardware resources, etc. will also increase.

[0003] Based on the above background, the functions of the onboard digital processing stand-alone for future functional integration are becoming more and more complex, and considering the reliability of aerospace, it is necessary to perform redundant backup of related resources to improve its reliability. The existing onboard digital processing stand-alone is usually designed as an ultra-thin large flat panel, integrating various functions into a board, and then improving the redundancy and reliability of product functions through the backup of the whole machine. Therefore, the traditional onboard digital processing stand-alone has at least the following defects:

[0004] 1. When part of the whole product fails, the whole product needs to be repaired or scrapped, which is very risky;

[0005] 2. For full machine backup, 50% of the resources must be in a forced idle state, which limits the flexibility of resource scheduling and reduces resource utilization efficiency.

[0006] Therefore, a new satellite-borne digital processing unit is urgently needed. Summary of the invention

[0007] In order to solve the problem that the existing onboard digital processing unit is a complete board, which not only has a high maintenance scrap rate, but also requires a complete machine backup and has low resource utilization efficiency, an embodiment of the present invention provides a onboard digital processing unit and a design method for the onboard digital processing unit.

[0008] In a first aspect, an embodiment of the present invention provides a satellite-borne digital processing stand-alone machine, comprising: a plurality of baseband modules, at least two integrated control modules, a power module and an interface board module; wherein each module is an independent board, one of the integrated control modules is a primary module, and the remaining integrated control modules are backup modules;

[0009] Each baseband module is electrically connected to each of the integrated control modules, the baseband modules are used for digital information processing, each baseband module is a backup for each other, and the number of the baseband modules is greater than the required number of baseband modules when achieving maximum functions, so that the excess baseband modules are also used as backups;

[0010] Each of the integrated control modules is connected to the interface board module, and the integrated control module is used for function control and resource scheduling;

[0011] The power supply module is electrically connected to each module and is used to supply power to each module;

[0012] The interface board module is electrically connected to each module and is connected to an external single machine for external communication.

[0013] Optionally, the number of baseband modules is designed as follows:

[0014]

[0015] Wherein, n is the number of baseband modules, and Nmax is the required number of baseband modules when achieving maximum function.

[0016] Optionally, when the modules are installed separately, the modules are connected to each other using cables.

[0017] Optionally, when the modules are installed together, a motherboard is also included. The motherboard is provided with a number of standard high-speed interfaces, and each interface is a standard communication protocol. The motherboard is arranged between the baseband module, the two integrated control modules, the power supply module and the interface board module. Each module is respectively connected to the interface of the motherboard, and the motherboard is used for communication between modules.

[0018] Optionally, the number of the motherboards is greater than or equal to 1.

[0019] Optionally, the hardware board of each module has an independent housing, and each module is independently installed and detachable.

[0020] Optionally, each module is software-defined based on an open wireless access network architecture so that software upgrades and function definitions can be performed on each module separately.

[0021] Optionally, each module is tested in parallel.

[0022] Optionally, the integrated control module is used to execute:

[0023] Scheduling the baseband module based on business mode, business volume and business importance;

[0024] When the current service is of high importance, multiple baseband modules are enabled to process the current service simultaneously;

[0025] When a primary baseband module among the multiple baseband modules fails, any backup baseband module among the multiple baseband modules is switched to continue processing the current service.

[0026] In a second aspect, an embodiment of the present invention further provides a design method for a single machine based on any embodiment of the specification, the method comprising:

[0027] Divide the whole machine into board modules with different functions, and divide the baseband resources used for digital information processing into several baseband modules;

[0028] Each baseband module, integrated control module, power module and interface board module is made into an independent board; the integrated control module is used for function control and resource scheduling;

[0029] Based on the demand for baseband modules when achieving maximum functionality, a new baseband module is added as a backup;

[0030] At least two integrated control modules are provided, one of which is the primary module and the others are backup modules;

[0031] Each baseband module is electrically connected to each integrated control module, and the power supply module and the interface board module are electrically connected to the baseband module and the integrated control module respectively to form a satellite-borne digital processing unit.

[0032] The embodiment of the present invention provides a satellite-borne digital processing stand-alone and a design method for the satellite-borne digital processing stand-alone, subdividing the whole machine into different independent board modules, and disassembling the baseband resources into cost-effective smaller modules - baseband modules, the baseband modules are interchangeable, and based on the demand for baseband modules at maximum function, a part of the baseband modules is designed as a backup when the full function is realized, so as to improve the reliability of the product. Compared with the traditional whole machine backup, only a part of the smaller baseband modules need to be backed up, thereby reducing the redundancy of resource backup, improving the flexibility of resource scheduling and the efficiency of resource use, and reducing the direct cost of the satellite-borne stand-alone and the launch cost caused by weight, etc. In addition, when a module fails, only the failed module needs to be replaced, avoiding the whole machine to be repaired and scrapped. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of the composition of a satellite-borne digital processing stand-alone machine provided by one embodiment of the present invention;

[0035] Figure 2 This is a finished product schematic diagram of a satellite-borne digital processing stand-alone machine provided by an embodiment of the present invention;

[0036] Figure 3 The present invention provides a flowchart of a method for designing a satellite-borne digital processing unit according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] Please refer to Figure 1 The embodiment of the present invention provides a satellite-borne digital processing stand-alone machine, comprising: a plurality of baseband modules, at least two integrated control modules, a power module and an interface board module; wherein each module is an independent board, one integrated control module is a primary module, and the other integrated control modules are backup modules;

[0039] Each baseband module is electrically connected to each integrated control module. The baseband modules are used for digital information processing. Each baseband module serves as a backup for each other. The number of baseband modules is greater than the required number of baseband modules when achieving maximum functions, so that the excess baseband modules are also used as backups.

[0040] Each integrated control module is connected to the interface board module, and the integrated control module is used for function control and resource scheduling;

[0041] The power module is electrically connected to each module and is used to supply power to each module;

[0042] The interface board module is electrically connected to each module and is connected to an external single machine for external communication.

[0043] In the embodiment of the present invention, the whole machine is subdivided into different independent board modules, and the baseband resources are disassembled into smaller modules with favorable cost. The baseband modules are interchangeable, and based on the demand for baseband modules at the maximum function, a part of the baseband modules is designed as a backup for achieving full functions, thereby improving the reliability of the product. Compared with the traditional whole machine backup, only a part of the smaller baseband modules need to be backed up, thereby reducing the redundancy of resource backup, improving the flexibility of resource scheduling and the efficiency of resource use, and reducing the direct cost of the satellite-borne single machine and the launch cost caused by weight, etc. In addition, when a module fails, only the failed module needs to be replaced to avoid the whole machine being returned for repair and scrapped.

[0044] In some implementations, the number of baseband modules is designed as follows:

[0045]

[0046] Where n is the number of baseband modules, N max The baseband module requirements for maximum functionality.

[0047] Traditional satellite-borne digital processing units are usually designed as ultra-thin large flat panels, integrating various functions into one board. When the whole unit is backed up, 50% of the resources need to be in a forced idle state, which limits the flexibility of resource scheduling and reduces the efficiency of resource use. In this embodiment, since the baseband resources are disassembled into smaller modules with favorable costs, the baseband modules can back up each other during normal business volume. Therefore, only 10-20% of the resource backup is needed in the resource pool to ensure the realization of the maximum functional business.

[0048] For example, the maximum function realization requires the resources of 5 baseband modules, and 1 baseband module can be backed up. The resources of any of the 5 baseband modules can be backed up. When one baseband module fails, the realization of full functions can still be guaranteed, eliminating the problem of 50% mandatory resource idleness of the traditional satellite-borne digital processing unit "one main and one backup". The resources of each baseband module are flexibly scheduled. When the business volume is small, some baseband modules can be adjusted to shutdown or standby mode to reduce power consumption. Each baseband module is based on a standardized design and can back up each other, and the backup ratio can be reduced to 10%-20%. The failure of a baseband module will not affect the global business, which can improve the reliability of the product.

[0049] In some embodiments, when the modules are installed separately, the modules are connected to each other using cables.

[0050] In this embodiment, the modules can be installed in a cluster or in a dispersed manner. When dispersed, the baseband modules can be integrated into different stand-alone machines, and the modules can be connected to each other through cables, making the product installation more flexible and convenient for assembly and maintenance. For example, the baseband module can be closer to the user antenna data interface or integrated into the user antenna.

[0051] In some embodiments, it can be combined with Figure 1 and Figure 2 When the modules are assembled and installed, a motherboard is also included. The motherboard is provided with several standard high-speed interfaces, and each interface is a standard communication protocol. The motherboard is arranged between the baseband module, two integrated control modules, the power module and the interface board module. Each module is respectively connected to the interface of the motherboard, and the motherboard is used for communication between modules.

[0052] In this embodiment, through the optimization of the motherboard structure, it can be compatible with the installation requirements of various satellite platforms such as flat satellites and cube satellites. The modules can be installed through the motherboard integration, or the modules can be installed in a dispersed manner according to the communication requirements of the upstream and downstream single machines, or the modules can be integrated into the upstream and downstream single machines to improve the installation efficiency.

[0053] In addition, the motherboard's standardized interface design facilitates module replacement and is conducive to rapid and gradual performance upgrades of the modules.

[0054] It can be understood that during cluster installation, multiple motherboards can be set up according to the number of modules and the shape and volume of the integrated single machine.

[0055] In some embodiments, the hardware board of each module has an independent housing, and each module is independently installed and detachable.

[0056] The traditional single-machine design of satellite-borne digital processing is difficult to design mechanically, and it is difficult to ensure the mechanical properties outside the plane. A fixed area is required in the middle, which makes assembly and disassembly difficult. In addition, the safety of the whole machine transportation and storage is poor, the cost is high, and the whole machine design is not easy to handle and transport.

[0057] In this embodiment, the hardware board of each module has an independent shell, and each module can be installed and disassembled independently, which can reduce the difficulty of structural processing and design, is conducive to structural assembly and mechanical design, and disassembling into independent modules is convenient for transportation and storage.

[0058] In some implementations, each module is software-defined based on an open wireless access network architecture, so that software upgrades and function definitions are performed on each module separately.

[0059] Traditional onboard digital processing single machine function and performance upgrade requires replacement of the entire system, which is costly, long, has poor technology inheritance and high risk. In this embodiment, standardized module and interface design, the whole machine upgrade can perform a separate partial upgrade of the functional module to continuously upgrade the product performance, which has high reliability and low risk, is conducive to rapid product upgrades, and maximizes the use of product hardware resources.

[0060] In addition, standard interfaces and modules and open wireless access network architecture facilitate compatibility with future standard modules such as AI computing modules and routing modules.

[0061] In some implementations, each module is tested in parallel.

[0062] The traditional onboard digital processing unit has over-centralized functions, and the whole unit test needs to be carried out in sequence, which is not conducive to the line test and integration in the batch production stage. In this embodiment, modular single-unit assembly facilitates the parallel production and testing of modules on multiple lines, which can improve the batch production efficiency and testing efficiency.

[0063] In some implementations, the integrated control module is used to perform the following when scheduling resources:

[0064] Scheduling baseband modules based on business patterns, business volume, and business importance;

[0065] When the current service is of high importance, multiple baseband modules are enabled to process the current service simultaneously;

[0066] When a primary baseband module among the multiple baseband modules fails, any backup baseband module among the multiple baseband modules is switched to continue processing the current service.

[0067] In this embodiment, the baseband modules in the resource pool can be replaced with each other, the baseband modules can be flexibly scheduled, and after a baseband module fails, the business can be transferred to other baseband modules for processing in a very short time. Important businesses can be jointly processed and stored by dual modules or multiple modules, etc., so as to ensure business continuity and reliability.

[0068] like Figure 3 As shown, an embodiment of the present invention further provides a design method for a satellite-borne digital processing stand-alone machine as described in any embodiment of the specification, the method comprising:

[0069] Step 300, dividing the whole machine into board modules with different functions, and dividing the baseband resources used for digital information processing into several baseband modules;

[0070] Step 302, each baseband module, integrated control module, power module and interface board module are made into independent boards; the integrated control module is used for function control and resource scheduling;

[0071] Step 304, based on the demand for baseband modules when achieving maximum functionality, add a baseband module as a backup;

[0072] Step 306, at least two integrated control modules are set, one of which is the primary copy and the others are backup copies;

[0073] Step 308, electrically connect each baseband module with each integrated control module, and electrically connect the power module and the interface board module with the baseband module and the integrated control module respectively, to form a satellite-borne digital processing unit.

[0074] The content of the above method is based on the same concept as the onboard digital processing stand-alone embodiment of the present invention. The specific content can be found in the description of the onboard digital processing stand-alone embodiment of the present invention and will not be repeated here.

[0075] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] A person of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk, etc., various media that can store program codes.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A single satellite digital processing unit, characterized in that: include: Several baseband modules, at least two integrated control modules, a power module and an interface board module; wherein each module is an independent board, one of the integrated control modules is the primary one, and the other integrated control modules are backup ones; Each baseband module is electrically connected to each of the integrated control modules, the baseband modules are used for digital information processing, each baseband module is a backup for each other, and the number of the baseband modules is greater than the required number of baseband modules when achieving maximum functions, so that the excess baseband modules are also used as backups; Each of the integrated control modules is connected to the interface board module, and the integrated control module is used for function control and resource scheduling; The power supply module is electrically connected to each module and is used to supply power to each module; The interface board module is electrically connected to each module and is connected to an external single machine for external communication; When the modules are installed separately, the modules are connected to each other using cables; When the modules are installed together, a motherboard is also included. The motherboard is provided with a number of standard high-speed interfaces, and each interface is a standard communication protocol. The motherboard is arranged between the baseband module, the two integrated control modules, the power module and the interface board module. Each module is respectively connected to the interface of the motherboard, and the motherboard is used for communication between modules.

2. The stand-alone machine according to claim 1, characterized in that: The number of baseband modules is designed as follows: Where n is the number of baseband modules, N max The baseband module requirements for maximum functionality.

3. The stand-alone machine according to claim 1, characterized in that: The number of the motherboards is greater than or equal to 1.

4. The stand-alone machine according to claim 1, characterized in that: The hardware board of each module has an independent housing, and each module is independently installed and detachable.

5. The stand-alone machine according to claim 1, characterized in that: Each module is software-defined based on the open wireless access network architecture so that software upgrades and function definitions can be performed on each module separately.

6. The stand-alone machine according to claim 1, characterized in that: Each module is tested in parallel.

7. The stand-alone machine according to claim 1, characterized in that: The integrated control module is used to perform the following operations during resource scheduling: Scheduling the baseband module based on business mode, business volume and business importance; When the current service is of high importance, multiple baseband modules are enabled to process the current service simultaneously; When a primary baseband module among the multiple baseband modules fails, any backup baseband module among the multiple baseband modules is switched to continue processing the current service.

8. A design method based on a single machine as claimed in any one of claims 1 to 7, characterized in that: include: Divide the whole machine into board modules with different functions, and divide the baseband resources used for digital information processing into several baseband modules; Each baseband module, integrated control module, power module and interface board module is made into an independent board; the integrated control module is used for function control and resource scheduling; Based on the demand for baseband modules when achieving maximum functionality, a new baseband module is added as a backup; At least two integrated control modules are provided, one of which is the primary module and the others are backup modules; Each baseband module is electrically connected to each integrated control module, and the power module and the interface board module are electrically connected to the baseband module and the integrated control module respectively, to form a single onboard digital processing unit; When the modules are installed separately, the modules are connected to each other using cables; When the modules are assembled and installed, the baseband module, the two integrated control modules, the power module and the interface board module are respectively connected to the standard high-speed interface of the motherboard, and each interface is a standard communication protocol to utilize the motherboard for communication between modules.

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