Resource centralized comprehensive radio frequency satellite system

Abstract

The invention provides a resource centralized comprehensive radio frequency satellite system, which comprises a data storage module used for storing service data on a satellite and sending required data according to a data output rate requirement; the data processing module is used for sending the on-satellite service data packet to the corresponding on-satellite sub-module based on the on-satellite sub-module ip address configured on the on-satellite service data packet; the software definition configurable module is used for performing code-level reconstruction through the transmitted software package to realize updating and configuration of each sub-module on the satellite; and the multi-satellite cooperation module is used for transmitting instructions, measurement information and service data of all satellites. According to the invention, each platform subsystem adopts a modular design, a unified interface and protocol form is configured, the platform generalization degree is improved, and only a new ip address needs to be allocated when a single machine is added, and the interface is connected to a satellite bus.

Description

Technical Field

[0001] The present invention relates to the field of spacecraft technology, and in particular, to a resource-centralized integrated radio frequency satellite system, and more particularly, to a resource-centralized integrated radio frequency satellite system with a software-defined architecture. Background Art

[0002] In recent years, with the rapid development of low-orbit giant constellations, the number of satellites has increased rapidly, and the short development cycle and diversified functional requirements have become important difficulties in current satellite development. Traditional customized satellites have different types of on-board units according to different missions. Usually, each satellite can only complete a specific task, and the software is difficult to update. There is a lack of functional flexibility and slow update iteration speed. In addition, each unit of the satellite usually adopts a "one-to-one" connection method, and the bus form is not unified. The cable network of each satellite needs to be designed separately, with poor inheritance, complex structure, and easy errors. The above reasons lead to poor versatility, long design cycle, redundant on-board resources, and single function of satellites under traditional design methods. When faced with mission changes, function upgrades, and single-unit expansion, they all need to be redesigned, which cannot meet the current satellite rapid iteration, batch, and lightweight development requirements. Therefore, it is of great significance to design a satellite architecture with a multi-functional reconfigurable and unified bus.

[0003] After searching the literature on the existing technology, it was found that compared with the multifunctional reconfigurable system architecture proposed by Wu Qixing in 2021 (Wu Qixing. Current status of software-defined satellite research and technological development prospects [J]. Journal of China Academy of Electronics Science, 202116(04):333337.), this architecture mainly focuses on the lightweight design of the hardware and software systems of the payload, and does not apply universal interfaces and modular designs in the platform subsystem design, and the architecture has poor universality; in 2020, Zhao Junsuo et al. proposed a service-oriented satellite for software-defined satellites. Software construction method, system and equipment (CN202011509327.3) realizes the separation of satellite hardware and software, improves the software and intelligence level of satellite system, and provides guarantee for the software definition of satellite. However, it does not design centralized storage and data processing functions at the whole satellite level, and the resource utilization rate is low. In 2023, Liang Bingyuan et al. proposed a satellite data management method, device, equipment and storage medium (CN202310872443.9), which unified the reception and transmission and processing of communication data, improved the communication rate, and this satellite architecture has great impact on the whole satellite industry. Service data and inter-satellite and satellite-to-ground communication data are centrally stored and processed, which further reduces resource waste and improves the efficiency and reliability of the entire satellite system; In 2020, Feng Jiapeng et al. proposed a satellite on-orbit data processing system and method (CN202010089908.X), which provides a universal interface for multiple payloads and provides data transmission and parallel computing conditions for multiple payloads, thereby improving the on-board data processing capability. All subsystems in this satellite architecture use universal interfaces, through integrated link modules, routing and switching modules, platform storage modules, information buses, The control bus centrally completes the information transmission and storage of the entire satellite and between satellites, further improving the efficiency and reliability of data storage and transmission; in 2022, Lv Hongqiang et al. proposed a bus-type satellite system (CN202211519110.X), which unified the interfaces of various satellite devices and adopted a unified power bus and communication bus interface. This design is conducive to the mass production of satellites. In contrast, this satellite architecture clearly divides the communication bus into a control bus and an information bus. The control bus transmits command measurement information, and the information bus transmits business data, which improves the efficiency and reliability of information transmission. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a resource-centralized integrated radio frequency satellite system.

[0005] A resource-centralized integrated radio frequency satellite system provided by the present invention comprises:

[0006] The data storage module is used to store the on-board service data and send the required data according to the data output rate requirements;

[0007] A data processing module, used to send the on-board service data packet to the corresponding on-board sub-module based on the on-board sub-module IP address configured on the on-board service data packet;

[0008] Software-defined configurable modules, used to perform code-level refactoring through delivered software packages to enable updates and configurations of various onboard submodules;

[0009] The multi-satellite coordination module is used to transmit satellite commands, measurement information and business data.

[0010] Preferably, the on-board submodules include: a platform control submodule, a power management submodule, an integrated link submodule, a payload, a reconfigurable processing submodule, a platform service submodule, a routing and switching submodule, a platform storage module, and an intelligent processing submodule;

[0011] The platform control submodule is used to control the satellite attitude movement;

[0012] The power supply control submodule is used to lead out a power bus from the power output module to form a power supply loop;

[0013] The integrated link submodule is used to establish data transmission between inter-satellite links and satellite-to-ground links;

[0014] The payload is a hardware carrier used to realize the satellite's communication, navigation, positioning and radar remote sensing functions;

[0015] The reconfigurable processing submodule is used for loading and reconfiguring the payload function;

[0016] The platform service submodule is used for processing satellite measurement and control information;

[0017] The routing and switching submodule is used for the interaction of single-satellite and star cluster service data;

[0018] The platform storage submodule is used for storage and management of single-satellite and star cluster service data;

[0019] The intelligent processing submodule is used to process the payload data into the required information type according to the task requirements.

[0020] Preferably, the submodules on the satellite are serially connected via a star network, a power bus, a control bus and an information bus of a centralized topology structure;

[0021] The power bus adopts a one-to-many topology, and the power distribution mode is to lead out the power bus at the output end of the power controller and form a power supply loop; the single machine on the satellite with power demand directly draws power from the power bus through the bus cable and standardized bus connector;

[0022] The control bus adopts a master-slave network structure, with the platform service submodule as the center, and completes the transmission of command and measurement information between the submodules on the satellite by broadcasting the command information issued by the platform service submodule and the measurement information of each submodule on the line;

[0023] The information bus adopts a high-throughput business data interaction mode based on Ethernet, is constructed using Ethernet, and realizes data transmission among the platform service submodule, payload, reconfigurable processing submodule, intelligent processing submodule, and integrated link submodule through a routing switching submodule.

[0024] Preferably, the payload has a multi-channel and multi-band signal receiving and transmitting capability, and the corresponding operating frequency can be configured according to the reconfigurable processing submodule.

[0025] Preferably, the data storage module includes: the on-board business data is sent to the platform storage submodule through the routing and switching submodule, and is stored by the platform storage submodule; when the platform storage submodule obtains the request sent by the routing and switching submodule, the platform storage submodule sends the required data to the routing and switching submodule according to the data output rate requirement; and the routing and switching submodule then sends it to other modules for use.

[0026] Preferably, the data processing module includes: configuring the on-board service data packet with the sub-module IP address of the data to be received based on the IP address configured for each on-board sub-module; the service data packet is transmitted to the routing and switching sub-module through the information bus, and then the routing and switching sub-module transmits the sub-module IP address of the data to be received configured for the service data packet to the corresponding sub-module.

[0027] Preferably, the software-defined configurable module includes: based on the unified interface form and interface protocol of each satellite sub-module, code-level reconstruction is performed by transmitting the software package through satellite-to-ground and inter-satellite links to achieve the update and configuration of each satellite module.

[0028] Preferably, the multi-satellite coordination module comprises: each satellite realizes the transmission of instructions, measurement information and business data through the routing switching submodule and the integrated link submodule;

[0029] When a satellite receives a multi-satellite collaborative task, it will send a task collaboration request to the remaining satellites through the platform service submodule. The collaborative satellite will feedback the current platform available resources through the platform service submodule. The initiating satellite will independently plan the collaborative task work based on the resource occupancy and payload configuration feedback from each collaborative satellite, and call the computing and payload functions of the remaining satellites to jointly complete the collaborative task.

[0030] Preferably, the reconfigurable processing submodule includes: receiving instruction information issued by the platform service submodule through the information bus interface, and providing energy by the secondary power supply and frequency module of the payload; deploying a variety of payload function software in the reconfigurable processing submodule, and realizing switching of multiple functions including communication, navigation, positioning, and radar remote sensing by loading software packages of different functions according to the instruction information issued by the platform service submodule;

[0031] The routing and switching submodule includes: a network switching unit, a management control and computing unit, and a secondary power supply unit;

[0032] The network switching unit and the management control computing unit complete the transmission of information through the internal bus connection;

[0033] The management control computing unit is provided with a management and control bus interface for receiving instruction information;

[0034] The secondary power supply module provides energy for the entire routing and switching module.

[0035] Preferably, the intelligent processing submodule is a payload data processing center, and a variety of payload data processing software are deployed in the intelligent processing submodule, and the payload data is processed into the required information type according to the task requirements by loading software packages with different functions;

[0036] The intelligent processing submodule includes: a management control computing unit, a general / special processing array, and a secondary power supply unit;

[0037] The management control computing unit and the general / special processing array are connected via an intra-module bus to complete information transmission;

[0038] The management control computing unit has an information bus interface and a control bus interface, which is responsible for receiving the instruction information given by the processing platform service submodule, receiving the original data given by the reconfigurable processing submodule, sending the secondary processing data given by the general / special processing array, and reconstructing, storing, and loading the payload data processing software. The most secure version of the software is reserved in advance, and the code can be rewritten at any time to ensure the security of the payload data processing software;

[0039] The general / special processing array is responsible for the reconfigurable processing submodule, which is used to process the original data received by the management control computing unit and transmit the secondary processed data to the management control computing unit through the internal bus;

[0040] The secondary power supply module provides energy for the intelligent processing submodule.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] 1. Each platform subsystem in the present invention adopts modular design, and is configured with a unified interface and protocol form, which improves the universality of the platform. When adding a single machine, it only needs to allocate a new IP address and connect the interface to the satellite bus;

[0043] 2. The present invention adopts a centralized resource allocation mode, and performs centralized information transmission and processing through a routing switching module and a platform processing module, thereby improving the platform load ratio and reliability;

[0044] 3. Each module in the present invention can realize code-level reconstruction through satellite-to-ground and inter-satellite link transmission of software packages, thereby realizing the update and configuration of module functions;

[0045] 4. In the present invention, the platform service module can issue instructions to the reconfigurable processing module and the intelligent processing module to load different software, change the payload function and data processing mode, and realize the switching of multiple satellite functions such as communication, navigation, positioning, radar remote sensing, etc.;

[0046] 5. In the present invention, each satellite can directly issue instructions or transmit measurement information and business data to other satellites through the routing exchange module and the integrated link module; each satellite can also receive instructions, measurement information and business data from other satellites through the integrated link module and the routing exchange module, thereby reducing multiple protocol conversions. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0048] Figure 1 The diagram of a resource-centralized integrated RF satellite architecture with a software-defined architecture.

[0049] Figure 2 This is a diagram of the task collaboration information architecture.

[0050] Figure 3 This is a diagram of the task collaboration resource architecture.

[0051] Figure 4 Reconstruct information flow diagrams for software.

[0052] Figure 5 Reconstruct the information flow graph for local files on board. DETAILED DESCRIPTION

[0053] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0054] Example 1

[0055] A resource-centralized integrated radio frequency satellite system with a software-defined architecture provided in accordance with the present invention includes features such as on-board centralized data storage function, centralized data processing function, software-defined configurable function, and multi-satellite coordination function.

[0056] The on-board centralized storage function: the routing switching module is directly connected to the platform storage module, and the on-board business data is sent to the platform storage module through the routing switching module and stored by the platform storage module; the platform storage module sends the required data to the routing switching module according to the data output rate requirements, and the routing switching module then sends it to other modules for use.

[0057] On-board centralized processing function: Each module of the platform is configured with a different IP address. When the on-board business data is packaged, the IP address of the module receiving the data is added. All business data packets are sent to the routing and switching module through the information bus, and then the routing and switching module passes them to the corresponding module based on the IP address information contained in the data packet.

[0058] Software-defined configurable functions: Each module uses the same type of interface form and interface protocol, and can achieve code-level reconstruction by transmitting software packages through satellite-to-ground and inter-satellite links to achieve module function updates and configurations.

[0059] Multi-satellite coordination function: Each satellite can directly issue instructions or transmit measurement information and business data to other satellites through the routing switching module and the integrated link module; each satellite can also receive instructions, measurement information and business data from other satellites through the integrated link module and the routing switching module.

[0060] The multi-satellite coordination function is that when a satellite receives a multi-satellite coordination task (hereinafter referred to as the initiating satellite), it will send a task coordination request to the remaining satellites (hereinafter referred to as the coordinating satellite) through the platform service module. The coordinating satellite will feedback the current platform available resources through the platform service module. The initiating satellite will autonomously plan the coordination task work according to the resource occupancy and payload configuration feedback from each coordinating satellite, and call the computing and payload functions of the remaining satellites to jointly complete the coordination task; wherein, the autonomous planning of the coordination task includes: the initiating satellite autonomously plans the task according to the resource situation feedback from each coordinating satellite; and sends instructions to call the computing and payload resources of each coordinating satellite to complete the tasks of each coordinating satellite after decomposition, so as to jointly complete the entire coordination task.

[0061] Specifically, the resource-centralized integrated radio frequency satellite architecture of the software-defined architecture includes: a platform control module, a power management and control module, an integrated link module, a payload, a reconfigurable processing module, a platform service module, a routing and switching module, a platform storage module, an intelligent processing module and a management and control bus, a power bus, and an information bus;

[0062] The modules are connected in series through a power bus, a control bus, and an information bus of a centralized topology structure that uniformly adopts a star network.

[0063] The power bus power supply adopts a "one-to-many" topology, and the power distribution mode is to lead out the power bus at the output end of the power controller to form a power supply loop, and the single machine on the satellite with power demand directly draws power from the power bus through bus cables and standardized bus connectors;

[0064] The information bus adopts a high-throughput business data interaction mode based on Ethernet, is constructed using Gigabit Ethernet and 10 Gigabit Ethernet, and uniformly performs reliable data transmission between the platform service module, payload, reconfigurable processing module, intelligent processing module, and integrated link module through a routing switching module;

[0065] The control bus adopts a master-slave network structure with the platform service module as the center, and completes the transmission of command and measurement information between satellite modules by broadcasting the command information issued by the platform service module and the measurement information of each module on the line.

[0066] The payload has the ability to transmit and receive multi-channel and multi-band signals, and can change the working frequency and multiple functions such as communication, navigation, positioning, radar remote sensing, etc. according to the software configured in the reconfigurable processing module.

[0067] The reconfigurable processing module is responsible for the realization and reconstruction of the payload function and has an information bus interface. The payload bus interface module receives the command information issued by the platform service module, and the secondary power supply and frequency module of the payload provide energy. A variety of payload function software are deployed in the reconfigurable processing module. According to the instructions issued by the platform service unit, by loading software task packages with different functions, the switching of multiple functions such as communication, navigation, positioning, radar remote sensing, etc. can be realized.

[0068] The intelligent processing module is a payload data processing center. A variety of payload data processing software is deployed in the intelligent processing module. By loading software packages with different functions, the payload data can be processed into the required information type according to task requirements.

[0069] The intelligent processing module includes a management control computing module, a general / special processing array, and a secondary power supply module. The management control computing module and the general / special processing array are connected by an internal bus of the module to complete the transmission of information; the management control computing module has an information bus interface and a management and control bus interface, and is responsible for receiving the instruction information given by the processing platform service unit, receiving the original data given by the reconfigurable processing module, sending the secondary processing data given by the general / special processing array, and reconstructing, storing, and loading the payload data processing software. The safest version of the software is reserved in advance inside, and the code can be copied at any time to ensure the security of the payload data processing software; the general / special processing array is responsible for the reconfigurable processing module, which is used to process the original data received by the management control computing module, and transmit the secondary processing data to the management control computing module through the internal bus; the secondary power supply module provides energy for the entire intelligent processing module.

[0070] The routing and switching module is responsible for the interaction of single-satellite / constellation service data and is connected to each module through an information bus. The service data generated by each module and the service data transmitted between satellites through the integrated link module are all transmitted to the routing and switching module, which then transmits the IP address information contained in the service data packet to the corresponding module for centralized information processing.

[0071] The routing and switching module includes a network switching module, a management control and computing module and a secondary power supply module. The network switching module and the management control and computing module are connected through an internal bus to complete information transmission; the management control and computing module has a management and control bus interface to receive command information, and the secondary power supply module provides energy for the entire routing and switching module.

[0072] The platform storage module is responsible for the storage management of single-star / star cluster service data and is connected to the routing and switching module through the information bus. The information that needs to be stored on the satellite is transmitted by each module to the routing and switching module, and then transmitted by the routing and switching module to the platform storage module for centralized storage of information; the information that needs to be output is transmitted by the platform storage module to the routing and switching module according to the output rate requirements, and then transmitted to other modules for use through the routing and switching module.

[0073] The power management and control module adopts a power bus power distribution solution, which draws out a power bus from the power management and control unit to form a power supply loop, and connects to a single machine to directly draw power from the bus through a standard end connector.

[0074] The platform service module is the service center and satellite-to-ground transmission gateway of the platform, responsible for processing satellite measurement and control information and planning and executing satellite missions. The interactive information between the ground and the satellite is first transmitted to the platform service module through the integrated link module, then transmitted to the routing switching module by the platform service module, and finally transmitted to other modules by the routing switching module.

[0075] The integrated link module is responsible for data transmission of inter-satellite links and satellite-to-ground links, and the transmission modes are divided into inter-satellite laser high-speed transmission, inter-satellite microwave low-speed transmission and satellite-to-ground wireless transmission.

[0076] The integrated link module includes an integrated link module bus interface module, an intersatellite laser link, a baseband processing module, an intersatellite microwave link, a satellite-to-ground wireless link and a secondary power supply module; the integrated link module bus interface is responsible for the transmission of command measurement information; the intersatellite laser link is responsible for the transmission of intersatellite high-speed data, and has an information bus 11 interface, which is connected to the routing switching module through the information bus to complete the unified management of intersatellite high-speed data; the baseband processing module and the intersatellite microwave link jointly complete the transmission of intersatellite low-speed data, which is connected to the routing switching module through the information bus to complete the unified management of intersatellite low-speed data; the baseband processing module and the satellite-to-ground wireless link jointly complete the transmission of satellite-to-ground data, which is connected to the routing switching module through the information bus to complete the unified management of satellite-to-ground data; the secondary power supply and frequency module provide energy for the entire integrated link module.

[0077] The platform control module is responsible for executing satellite attitude control actions.

[0078] The platform control module includes a star sensor, a three-axis magnetometer, a fiber optic gyroscope combination and a flywheel foot combination. Each single machine has a management and control bus interface, directly receives command information given by the platform service module, and completes satellite attitude control.

[0079] A resource-centralized integrated radio frequency satellite system is provided in this embodiment. Each subsystem in this system adopts a modular design and uses the same type of interface form and interface protocol to improve the universality of the platform. In this architecture, cables no longer use a "one-to-one" connection method. By uniformly adopting a star network, a power bus, a control bus, and an information bus with a centralized topology structure are serially connected to each module to transmit energy, command measurement information, and business data respectively, thereby reducing the complexity of the cables and improving the platform's load ratio. The system can send corresponding instructions through the platform service module to intelligently switch the reconfigurable processing module and the software of the intelligent processing module. The satellite can simultaneously meet multiple functional requirements such as search, positioning, navigation, and communication, and complete updates and iterations through on-orbit code-level reconstruction to improve the flexibility of the platform.

[0080] Example 2

[0081] Embodiment 2 is a preferred embodiment of Embodiment 1

[0082] like Figure 1As shown in, the present invention provides a resource-centralized integrated radio frequency satellite system with a software-defined architecture, including: a platform control module 1, a power management and control module 2, an integrated link module 3, a payload 4, a reconfigurable processing module 5, a platform service module 6, a routing and switching module 7, a platform storage module 8, an intelligent processing module 9 and a management and control bus 12, a power bus 10, and an information bus 11;

[0083] The modules are connected in series through a power bus 10, a control bus 12, and an information bus 11 which are uniformly star-shaped networks and have a centralized topology structure.

[0084] like Figure 2 As shown, when a collaborative task is initiated, the ground sends collaborative task instructions to satellite A (initiating satellite) through the satellite-to-ground link. After receiving the instruction, the satellite A platform service module 6 transmits the task collaborative request to the satellite A (initiating satellite) integrated link module 3 through the control bus 12, and broadcasts it to the surrounding satellites through the inter-satellite link. The collaborative request includes the task target, task time, required load capacity, computing resources and other information. After receiving the task collaborative request from the initiating satellite, the remaining satellites feedback the current available load capacity, transmission capacity, computing resources, energy and location information. After receiving the feedback information, satellite A (initiating satellite) selects collaborative satellites (collaborative satellites) according to the task requirements, and sends task collaborative instructions to the selected satellites B (collaborative satellites) and C (collaborative satellites), and establishes a stable information transmission link.

[0085] like Figure 3 As shown, the information transmission link includes: a command measurement information link and a business data link. The command information is transmitted from the platform service module 6 of satellite A (initiating satellite) to the integrated link module 3 of satellite A (initiating satellite) through the control bus 12, and then transmitted to the integrated link module 3 of satellite B (cooperative satellite) and satellite C (cooperative satellite) through the inter-satellite link, and finally transmitted to the platform service module of satellite B (cooperative satellite) and satellite C (cooperative satellite) through the control bus 12; the measurement information is transmitted from the platform service module 6 of satellite B (cooperative satellite) and satellite C (cooperative satellite) through the control bus 12 to the satellite B (cooperative satellite) and satellite C (cooperative satellite). The integrated link module 3 of satellite C (cooperative satellite) is then transmitted to the integrated link module 3 of satellite A (initiating satellite) through the inter-satellite link, and finally transmitted to the platform service module 6 of satellite A (initiating satellite) through the management and control bus 12; the business data is transmitted to the routing switching module 7 of the satellite through the information bus 11 according to the task requirements, and then transmitted to the integrated link module 3 of the satellite through the information bus 11, and then transmitted to the integrated link module 3 of another satellite through the inter-satellite link, and transmitted to the routing switching module 7 of the satellite through the information bus 11 of the satellite, and then transmitted by the routing switching module 7 of the satellite to other modules for use.

[0086] like Figure 4As shown, the code-level reconstruction of the platform and the payload software is completed through the integrated link module 3, the platform service module 6, the routing and switching module 7, the platform storage module 8 and the module to be reconstructed; the steps of code-level reconstruction are as follows:

[0087] The ground transmits the data packet attributes and other related information to the satellite through the high-speed uplink and downlink, the integrated link module 3 transmits the information to the platform service module 6 through the control bus 12, and the platform service module 6 verifies the information and feeds back the file receiving process start information after confirming that it is correct; the ground transmits the data packet to the platform service module 6 through the high-speed uplink and downlink, the integrated link module 3, and the control bus 12 in sequence; the platform service module 6 verifies the integrity of the data packet, and transmits the packet loss retransmission request to the ground if there is an error, and transmits the data packet to the routing and switching module 7 through the information bus 11 if there is no error; the routing and switching module transmits the data packet to the platform storage module 8 through the information bus; the platform storage module 8 transmits the data packet to the routing and switching module 7 according to the data packet rate that the module that needs to be reconstructed can receive; the routing and switching module 7 transmits the data packet to the module that needs to be reconstructed through the information bus 11, and the module completes the writing and replacement of the data packet; after the reconstruction is completed, the reconstruction completion information is fed back to the platform service module 6 through the control bus 12, and the platform service module 6 feeds back the reconstruction completion information to the ground through the control bus 12 and the integrated link module 3.

[0088] like Figure 5 As shown, the function switching of the platform and the load module is completed through the integrated link module 3, the platform service module 6, the routing and switching module 7, the platform storage module 8 and the module that needs to be reconstructed.

[0089] The steps to switch the function are as follows:

[0090] The ground transmits the function switching instruction to the satellite through the high-speed uplink and downlink, the integrated link module 3 transmits the information to the platform service module 6 through the control bus 12, the platform service module 6 transmits the instruction information to the module that needs the function switching through the control bus 12, and the module autonomously completes the loading of the corresponding software; after the function switching is completed, the function switching completion information is fed back to the platform service module 6 through the control bus 12, and the platform service module 6 feeds back the function switching completion information to the ground through the control bus 12 and the integrated link module 3.

[0091] Those skilled in the art know that, in addition to realizing the system and its various devices, modules, and units provided by the present invention in a purely computer-readable program code, it is entirely possible to realize the same functions in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered as a hardware component, and the devices, modules, and units included therein for realizing various functions can also be regarded as structures within the hardware component; the devices, modules, and units for realizing various functions can also be regarded as both software modules for realizing the method and structures within the hardware component.

[0092] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A resource-centralized integrated radio frequency satellite system, characterized in that: include: The data storage module is used to store the on-board service data and send the required data according to the data output rate requirements; A data processing module, used to send the on-board service data packet to the corresponding on-board sub-module based on the on-board sub-module IP address configured on the on-board service data packet; Software-defined configurable modules, used to perform code-level refactoring through delivered software packages to enable updates and configurations of various onboard submodules; The multi-satellite coordination module is used to transmit satellite commands, measurement information and business data.

2. The resource-centralized integrated radio frequency satellite system according to claim 1, characterized in that: The on-board submodules include: a platform control submodule, a power management submodule, an integrated link submodule, a payload, a reconfigurable processing submodule, a platform service submodule, a routing and switching submodule, a platform storage module, and an intelligent processing submodule; The platform control submodule is used to control the satellite attitude movement; The power supply control submodule is used to lead out a power bus from the power output module to form a power supply loop; The integrated link submodule is used to establish data transmission between inter-satellite links and satellite-to-ground links; The payload is a hardware carrier used to realize the satellite's communication, navigation, positioning and radar remote sensing functions; The reconfigurable processing submodule is used for loading and reconfiguring the payload function; The platform service submodule is used for processing satellite measurement and control information; The routing and switching submodule is used for the interaction of single-satellite and star cluster service data; The platform storage submodule is used for storage and management of single-satellite and star cluster service data; The intelligent processing submodule is used to process the payload data into the required information type according to the task requirements.

3. The resource-centralized integrated radio frequency satellite system according to claim 2, characterized in that: The submodules on the satellite are serially connected via a star network, a power bus, a control bus and an information bus of a centralized topology structure; The power bus adopts a one-to-many topology, and the power distribution mode is to lead out the power bus at the output end of the power controller and form a power supply loop; the single machine on the satellite with power demand directly draws power from the power bus through the bus cable and standardized bus connector; The control bus adopts a master-slave network structure, with the platform service submodule as the center, and completes the transmission of command and measurement information between the submodules on the satellite by broadcasting the command information issued by the platform service submodule and the measurement information of each submodule on the line; The information bus adopts a high-throughput business data interaction mode based on Ethernet, is constructed using Ethernet, and realizes data transmission among the platform service submodule, payload, reconfigurable processing submodule, intelligent processing submodule, and integrated link submodule through a routing switching submodule.

4. The resource-centralized integrated radio frequency satellite system according to claim 2, characterized in that: The payload has a multi-channel and multi-band signal receiving and transmitting capability, and can be configured with a corresponding operating frequency point according to the reconfigurable processing submodule.

5. The resource-centralized integrated radio frequency satellite system according to claim 2, characterized in that: The data storage module includes: the on-board business data is sent to the platform storage submodule through the routing and switching submodule, and is stored by the platform storage submodule; when the platform storage submodule obtains the request sent by the routing and switching submodule, the platform storage submodule sends the required data to the routing and switching submodule according to the data output rate requirement; and then the routing and switching submodule sends it to other modules for use.

6. The resource-centralized integrated radio frequency satellite system according to claim 2, characterized in that: The data processing module includes: configuring the on-board service data packet with the sub-module IP address of the data to be received based on the IP address configured for each on-board sub-module; transmitting the service data packet to the routing and switching sub-module through the information bus, and then the routing and switching sub-module transmits the sub-module IP address of the data to be received configured for the service data packet to the corresponding sub-module.

7. The resource-centralized integrated radio frequency satellite system according to claim 2, characterized in that: The software-defined configurable module includes: based on the unified interface form and interface protocol of each satellite sub-module, the software package is transmitted through the satellite-to-ground and inter-satellite links to perform code-level reconstruction to achieve the update and configuration of each satellite module.

8. The resource-centralized integrated radio frequency satellite system according to claim 2, characterized in that: The multi-satellite coordination module includes: each satellite realizes the transmission of instructions, measurement information and business data through the routing switching submodule and the integrated link submodule; When a satellite receives a multi-satellite collaborative task, it will send a task collaboration request to the remaining satellites through the platform service submodule. The collaborative satellite will feedback the current platform available resources through the platform service submodule. The initiating satellite will independently plan the collaborative task work based on the resource occupancy and payload configuration feedback from each collaborative satellite, and call the computing and payload functions of the remaining satellites to jointly complete the collaborative task.

9. The resource-centralized integrated radio frequency satellite system according to claim 2, characterized in that: The reconfigurable processing submodule includes: receiving the instruction information issued by the platform service submodule through the information bus interface, and providing energy by the secondary power supply and frequency module of the payload; deploying a variety of payload function software in the reconfigurable processing submodule, and realizing the switching of multiple functions including communication, navigation, positioning, and radar remote sensing by loading software packages with different functions according to the instruction information issued by the platform service submodule; The routing and switching submodule includes: a network switching unit, a management control and computing unit, and a secondary power supply unit; The network switching unit and the management control computing unit complete the transmission of information through the internal bus connection; The management control computing unit is provided with a management and control bus interface for receiving instruction information; The secondary power supply module provides energy for the entire routing and switching module.

10. The resource-centralized integrated radio frequency satellite system according to claim 1, characterized in that: The intelligent processing submodule is a payload data processing center. A variety of payload data processing software is deployed in the intelligent processing submodule. By loading software packages with different functions, the payload data is processed into the required information type according to the task requirements. The intelligent processing submodule includes: a management control computing unit, a general / special processing array, and a secondary power supply unit; The management control computing unit and the general / special processing array are connected via an intra-module bus to complete information transmission; The management control computing unit has an information bus interface and a control bus interface, which is responsible for receiving the instruction information given by the processing platform service submodule, receiving the original data given by the reconfigurable processing submodule, sending the secondary processing data given by the general / special processing array, and reconstructing, storing, and loading the payload data processing software. The most secure version of the software is reserved in advance, and the code can be rewritten at any time to ensure the security of the payload data processing software; The general / special processing array is responsible for the reconfigurable processing submodule, which is used to process the original data received by the management control computing unit and transmit the secondary processed data to the management control computing unit through the internal bus; The secondary power supply module provides energy for the intelligent processing submodule.

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