CN115441934B - Constellation satellite integrated high-speed data interaction network architecture - Google Patents
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Abstract
The invention relates to the technical field of satellite electronic systems, and provides a constellation satellite integrated high-speed data interaction network architecture which comprises an inter-satellite routing link, an inter-satellite single-machine device, a platform integrated electronic device and an SRIO interaction network system, and realizes connection and interaction of different chips of each functional module and single module in the inter-satellite routing link, the inter-satellite single-machine device and the platform integrated electronic device. The invention realizes the compatibility of the inter-satellite information network and the constellation network by utilizing the efficient routing scheduling strategy and the data exchange network, forms an interaction channel supporting constellation satellite information sharing, and solves the problems of incompatibility of the inter-satellite network and complex bus types. The same set of SRIO network is used for realizing information interconnection of the comprehensive electronic function modules of the inter-satellite routing, the intra-satellite equipment and the platform, supporting information sharing of the whole satellite electronic system and the constellation satellite under one network, and expanding the management of the intra-satellite network to the management of the constellation network.
Description
Technical Field
The invention relates to the technical field of satellite electronic systems, in particular to a constellation satellite integrated high-speed data interaction network architecture.
Background
The novel low-orbit satellite constellation is a satellite constellation which is deployed in a low-earth orbit, has a large scale and can realize orbital communication. The low orbit satellite constellation has the characteristics of low transmission delay, small propagation loss, wide coverage area and the like, and is one of the popular research directions in the satellite remote sensing field.
In the future, the number of constellation satellites is huge, the autonomous operation degree and the intelligent level are high, and mass and different types of data transmission exists between satellites. How to construct an interactive network supporting the high-efficiency communication between an electronic system in a satellite and different satellites, so as to realize the rapid sharing of information in the constellation, and the method is the basis for the constellation to finish the toughness networking and the on-orbit cooperative application. In order to meet the information interaction requirement in the constellation, many research institutions research and verify the inter-satellite routing technology, so that the interaction between satellite networking and a small amount of data in the constellation is realized; there are also some research institutions that research on the architecture of an intra-satellite data interaction network based on a conventional low-speed bus. However, most of the inter-satellite data interaction networks are based on various special and discrete directly attached physical communication channels, such as data interfaces of a certain bus or port, have fixed and single functions and connection relations, cannot form a uniform high-speed exchange network, have poor expansibility and flexibility, and cannot realize dynamic interconnection and information sharing of all the devices in the satellite. Meanwhile, the inter-satellite switching network cannot be compatible with the inter-satellite routing network, and effective sharing of multi-source information in a constellation is not facilitated.
Therefore, developing an integrated high-speed data interaction network architecture research for constellation satellite-oriented application and supporting intra-satellite-to-inter-satellite information sharing is a problem to be solved urgently.
Disclosure of Invention
In order to solve the problems in the background technology, the invention provides a constellation satellite integrated high-speed data interaction network architecture, which comprises an inter-satellite routing link, an inter-satellite single-machine device, a platform integrated electronic device and an SRIO interaction network system, wherein the SRIO interaction network system connects different chips of each functional module and each single module in the inter-satellite routing link, the inter-satellite single-machine device and the platform integrated electronic device;
The SRIO interaction network system realizes interconnection, information interaction and sharing of inter-satellite routing links, each single-machine device in the satellite and each functional module in the platform integrated electronic device by setting an integrated high-speed interaction network, a routing allocation strategy and a protocol conversion algorithm.
In the preferred scheme, the connection and interaction between the SRIO interaction network system and the inter-satellite routing link are realized based on a CPU (Central processing Unit), an FPGA (field programmable gate array), an external data interface and an inter-satellite switching port, wherein the CPU realizes the realization of an inter-satellite routing networking algorithm, the FPGA is used for data access, protocol conversion and data forwarding, and the external data interface is connected with an inter-satellite routing link terminal of a satellite; the inter-exchange port is an SRIO port and is connected with the SRIO port of the inter-satellite data exchange unit and used for interconnecting the inter-satellite routing unit and the inter-satellite exchange unit, so that the inter-satellite network is a switching node for the inter-satellite exchange.
In the preferred scheme, the inter-satellite group network receives inter-satellite remote sensing information, measurement and control information and task planning data of an inter-satellite routing link through an external data interface, is accessed into an integrated high-speed interaction network, and is transmitted to each single machine device in a platform and each module in a comprehensive electronic single machine of the platform after being distributed by a switching network route;
various types of data of other single-machine equipment and platform integrated electronic equipment in the satellite are also transmitted to an inter-satellite routing link through the integrated high-speed interaction network, and are transmitted to other satellites through the inter-satellite routing link.
In a preferred scheme, the SRIO interaction network system is provided with an intra-satellite data exchange SRIO port, and a platform processing module, an interface module and a storage module in the platform integrated electronic equipment are connected to the intra-satellite data exchange SRIO port through an SRIO bus of an internal bottom plate of the equipment by utilizing an SRIO and a GTX interface of FPGA, CPU, DSP devices, so that board-level interconnection is realized.
The processing module, the interface module and the storage module are communicated with the bus, the platform assembly and the equipment through the CAN, the UART and the analog acquisition interface to obtain low-speed data, realize conversion of a non-SRIO bus protocol through an FPGA high-performance device in the module, and are connected to an integrated SRIO exchange port to realize that the platform data is accessed into an integrated high-speed interaction network.
In the preferred scheme, the single-machine equipment in the satellite comprises remote sensing load equipment in the satellite, a load on-orbit processing unit and data transmission subsystem equipment, and the remote sensing load equipment in the satellite, the load on-orbit processing unit and the data transmission subsystem equipment are connected to an integrated high-speed interaction network through a high-speed bus interface.
In a preferred scheme, the high-band bus interface comprises an SRIO interface, a 2711 interface and an LVDS interface, wherein the SRIO interface is directly connected to an integrated SRIO switching port, the 2711 interface and the LVDS interface are connected to the integrated SRIO switching port after performing protocol conversion of an FPGA, and access of load original data and information data after on-orbit processing is realized.
The beneficial effects achieved by the invention are as follows:
The constellation satellite integrated high-speed data interaction network architecture constructed by the invention realizes the compatibility of an inter-satellite information network and a constellation network by utilizing a high-efficiency routing scheduling strategy and data exchange capacity, forms an interaction channel supporting constellation satellite information sharing, and solves the problems of incompatibility of the inter-satellite network and complex bus types. The same set of SRIO network is used for realizing information interconnection of the inter-satellite routing, the intra-satellite equipment and the platform comprehensive electronic function module, supporting information sharing of the whole satellite electronic system and the constellation satellite under one network, expanding from intra-satellite network management to constellation network management, and simultaneously realizing inter-satellite data routing and intra-satellite data exchange.
The invention is built based on the SRIO high-speed bus, has low software overhead, supports hardware error correction retransmission, has small transmission delay and can configure the transmission rate. 3C connections can be supported simultaneously: chip-Chip (Chip-Chip level) interconnection, card-Card (also called Board-Board, board-Board level) interconnection, chassis-to-Chassis (device-device level) interconnection, so that different chips of an inter-satellite routing device, an inter-satellite platform device, a platform comprehensive electronic functional module and a single module can be connected by using the same set of SRIO network, and the chips, the modules, the single machine and the inter-satellite routing are all nodes of the SRIO high-speed interaction network.
The invention can access the multi-type load device and the inter-satellite link device, the routing and switching module provides various bus interfaces such as SRIO, 2711, LVDS, CAN, UART and the like, the multi-type bus interfaces and data are converted into unified SRIO data through a protocol, and the unified SRIO interaction network is utilized for data exchange.
The integrated high-speed interaction network is built based on the high-speed serial bus, the transmission bandwidth and the link data transmission rate can be configured as required, the total bandwidth can reach 240Gbps, the total bandwidth is improved by more than 1 order of magnitude compared with the current satellite-borne bus network, and the network transmission route can be dynamically reconfigured, so that the problems of low transmission speed, fixed and single connection relation, poor expansibility and flexibility of the current satellite-borne bus network are solved.
Drawings
Fig. 1 is a schematic diagram of a constellation satellite integrated high-speed data interaction network architecture according to the present invention.
Fig. 2 is a schematic diagram of a network architecture according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a network architecture according to embodiment 2 of the present invention;
FIG. 4 is a diagram illustrating a remote control data flow according to embodiment 3 of the present invention;
FIG. 5 is a telemetry data flow diagram of embodiment 4 of the present invention;
FIG. 6 is a schematic diagram of a satellite-borne payload data flow according to embodiment 5 of the present invention;
Fig. 7 is a schematic diagram of a satellite mission planning data flow according to embodiment 6 of the present invention.
Detailed Description
In order to facilitate understanding of the present invention to those skilled in the art, a specific embodiment of the present invention will be described below with reference to examples and drawings.
Referring to fig. 1, the constellation satellite integrated high-speed data interaction network architecture of the present invention includes an inter-satellite routing link, an inter-satellite stand-alone device, a platform integrated electronic device, and an SRIO interaction network system, wherein:
the SRIO interaction network system connects different chips of each functional module and single module in the inter-satellite routing link, the inter-satellite single machine equipment and the platform integrated electronic equipment;
The SRIO interaction network system realizes interconnection, information interaction and sharing of inter-satellite routing links, each single-machine device in the satellite and each functional module in the platform integrated electronic device by setting an integrated high-speed interaction network, a routing allocation strategy and a protocol conversion algorithm.
The SRIO interaction network system is connected with the inter-satellite routing link, the interaction is realized based on a CPU, an FPGA, an external data interface and an inter-satellite switching port, the CPU realizes the realization of an inter-satellite routing networking algorithm, the FPGA is used for data access, protocol conversion and data forwarding, and the external data interface is connected with an inter-satellite routing link terminal of a satellite; the inter-exchange port is an SRIO port and is connected with the SRIO port of the inter-satellite data exchange unit and used for interconnecting the inter-satellite routing unit and the inter-satellite exchange unit, so that the inter-satellite group network is routed as a switching node of the inter-satellite exchange. The inter-satellite group network receives inter-satellite remote sensing information, measurement and control information and task planning data of an inter-satellite routing link through an external data interface, is accessed into an integrated high-speed interaction network, and is transmitted to each single machine device in the platform and each module in the platform comprehensive electronic single machine after being distributed by a switching network route; various types of data of other single-machine equipment and platform integrated electronic equipment in the satellite are also transmitted to an inter-satellite routing link through the integrated high-speed interaction network, and are transmitted to other satellites through the inter-satellite routing link.
The SRIO interaction network system is provided with an intra-satellite data exchange SRIO port, and a platform processing module, an interface module and a storage module in the platform integrated electronic equipment are connected to the intra-satellite data exchange SRIO port through an SRIO bus of an equipment internal bottom plate by utilizing an SRIO and a GTX interface of FPGA, CPU, DSP devices, so that board-level interconnection is realized;
the processing module, the interface module and the storage module are communicated with the bus, the platform assembly and the equipment through the CAN, the UART and the analog acquisition interface to obtain low-speed data, realize conversion of a non-SRIO bus protocol through an FPGA high-performance device in the module, and are connected to an integrated SRIO exchange port to realize that the platform data is accessed into an integrated high-speed interaction network.
The in-satellite single machine equipment comprises in-satellite remote sensing load equipment, a load on-orbit processing unit and data transmission subsystem equipment, and the in-satellite remote sensing load equipment, the load on-orbit processing unit and the data transmission subsystem equipment are connected to an integrated high-speed interaction network through a high-speed bus interface.
The high-band bus interface comprises an SRIO interface, a 2711 interface, an LVDS interface and other common high-speed interfaces, wherein the SRIO interface is directly connected to an integrated SRIO exchange port, the 2711 interface and the LVDS interface are connected to the integrated SRIO exchange port after performing protocol conversion of an FPGA, and access of load original data and information data after on-orbit processing is realized.
In the case of example 1,
As shown in fig. 2, the platform comprehensive electronics serves as a center of information interaction between the stars, adopts a layering design idea, divides the network architecture into a control plane and a data plane according to the difference of high reliability and high performance, and adopts a high-low speed mixed layering bus network interconnection mechanism to realize unified management of the inter-satellite network routing and inter-satellite bus communication. The platform integrated electronic exchange and routing module is connected with the intra-equipment high-speed data exchange plane between the computer module and the interface module inside the device and is connected with the extra-equipment high-speed data exchange plane between the inter-satellite equipment and the inter-satellite link, so that the routing and exchange module becomes a bridge for data interaction between the inter-satellite equipment and the inter-satellite equipment, and also becomes a data transmission channel for managing and controlling the intra-satellite equipment and the constellation by the platform integrated electronic.
The exchange and route module is used as the core module of satellite networking data packet route forwarding, is the core unit of the constellation transmission network system, is the physical and chemical existence of the space network protocol stack and the constellation network route algorithm, is the main hardware infrastructure of the space network, and has the main functions that: routing, data forwarding and exchange processing capabilities are provided, data access services of a laser terminal, a load management unit, a camera, an inter-satellite communication terminal and other loads are supported, and a lightweight network security management function is provided.
In the case of example 2,
In order to improve the routing processing efficiency and network reconfiguration capability, an embodiment of the switching and routing module is shown in fig. 3.
The control plane and data plane separation architecture design technology is adopted to separate the interaction path control and data forwarding of the inter-satellite exchange and inter-satellite routing, so as to respectively form two major parts of a control plane and a data exchange (forwarding) plane. The functions of intra-satellite switching and inter-satellite routing are specifically realized as follows:
(1) Implementation of intra-satellite switching function
The intra-satellite switching control plane is realized by using a high-performance FPGA, and mainly completes the functions of intra-satellite switching network path configuration, data access and bus protocol conversion. The in-satellite remote sensing load equipment, the load on-orbit processing unit, the data transmission subsystem equipment and the like are accessed into the in-satellite data exchange unit through high-speed bus interfaces such as SRIO, 2711, LVDS and the like, and after the interfaces such as 2711, LVDS and the like are subjected to protocol conversion of the FPGA, the in-satellite remote sensing load equipment, the load on-orbit processing unit, the data transmission subsystem equipment and the like are connected onto the integrated SRIO exchange port, so that the access of data such as the original load data and information after on-orbit processing is realized.
The in-satellite data exchange plane is realized by using CPS1848 SRIO exchange chips, integrates a plurality of standard SRIO exchange ports, provides high-performance and configurable data exchange capacity, completes quick forwarding processing of various high-speed data, and realizes mechanisms such as error management, flow control and the like at a hardware level.
(2) Inter-satellite routing function implementation
The inter-satellite routing control plane realizes the functions of link state sensing, whole network topology planning, network routing planning, flow balance control and the like. The inter-satellite routing control plane module outputs the calculated forwarding table to the inter-satellite data forwarding plane module, and the network control plane module is mainly realized by a high-performance CPU.
The main function of the inter-satellite routing data forwarding plane is to receive the data packets of each port and select to forward and output the data packets from a certain port according to a forwarding table. The forwarding can not only realize the data routing forwarding of the external port, but also realize the forwarding of the data between the intra-satellite ports and the inter-satellite ports. Meanwhile, the information transmission grading guarantee mechanism is also completed in the data forwarding plane module. The data forwarding plane is mainly realized by an FPGA chip.
The platform integrated electronic system integrates various functional modules, has a plurality of internal information flows, and is a good and easy-to-use foundation for realizing the platform integrated electronic system by efficiently planning inter-satellite and intra-satellite information data transmission paths. According to the functional division, the data flow in the platform comprehensive electronics can be divided into a remote control data flow, a remote measuring data flow, a load data flow, a task planning data flow and a data track control data flow, and each data flow is specifically described below.
Embodiment 3, remote control data stream:
The remote control data flow of the integrated electronic system of the platform is shown in fig. 4, the integrated electronic system of the platform fully considers the expandability in the system design, and supports the combined requirements of different functional modules of various satellite platforms, and the routing and switching module, the satellite-ground following measurement and control module, the satellite-ground integrated satellite-ground relay panoramic beam module can be split into independent single units without influencing the remote control data flow of the integrated electronic system of the platform.
The remote control data flow of the platform integrated electronic system is described in detail as follows:
a) The satellite-ground following measurement and control module can receive low-speed and high-speed uplink remote control data through a satellite-ground measurement and control channel, can also receive the remote control data through the following channel, and can send the remote control data to the telemetry and remote control module through a platform integrated electronic internal bus after the remote control data is received;
B) The space-earth integrated satellite-earth relay panoramic beam module can receive low-speed and high-speed uplink remote control data through a satellite-earth measurement and control channel, can also receive remote control data through a relay and panoramic beam channel, and can send the remote control data to the telemetry and remote control module through a platform integrated electronic internal bus after the remote control data is received;
C) The routing and switching module can receive remote control data through an inter-satellite link, and can send the remote control data to the telemetry and remote control module through a platform comprehensive electronic internal bus after receiving;
D) After the remote measuring and controlling module receives remote control instruction data of the satellite-to-ground, relay and inter-satellite links, if the remote control instruction data is the secret state data, firstly decrypting the secret state data, and analyzing the instruction content after the decryption is completed;
e) After the remote measurement and control instruction is analyzed, if the remote measurement and control instruction is a direct instruction, driving a corresponding circuit to output the direct instruction;
F) After the remote measuring and controlling instruction is analyzed, if the remote measuring and controlling instruction is other instructions, the remote measuring and controlling instruction is sent to the central machine module through the internal bus;
g) The central machine module analyzes after receiving the remote control data, and distributes the remote control data through an internal or external star CAN bus if the remote control data is an instruction of other modules;
H) And if the telemetry and remote control module receives an indirect instruction distributed by the star CAN bus, driving the corresponding circuit to output the indirect instruction.
Example 4 telemetry data stream:
the telemetry data flow of the integrated electronic system of the platform is shown in fig. 5, is consistent with the remote control data flow, fully considers the expandability when the integrated electronic system of the platform is designed, and supports the combined requirements of different functional modules of various satellite platforms.
A) The whole machine telemetry is collected by a central machine module through a star CAN bus to each module inside or outside the equipment;
b) After the central machine module finishes the telemetering data acquisition, framing is carried out, the telemetering data are sent to the telemetering and remote control module through an internal medium-low speed bus, and the telemetering and remote control module encrypts the telemetering and remote control module according to conditions;
C) The telemetry and remote control module can send telemetry data to the world-to-world integrated world-to-satellite relay panoramic beam module through an internal bus and descends through a world-to-satellite or relay interface;
d) The telemetry and remote control module can send telemetry data to the satellite-to-ground random measurement and control module through an internal bus and descends through a satellite-to-ground or random interface;
E) The telemetry and remote control module can send telemetry data to the routing and switching module through an internal bus and to other stars through an inter-satellite link interface.
Example 5, payload data stream:
The load flow of the integrated electronic system of the platform is shown in fig. 6, the load data takes a high-speed bus network in the satellite as a transmission path, takes a routing and switching module as a management core, and adopts an integrated design for inter-satellite routing and intra-satellite switching. Meanwhile, the platform comprehensive electronic system fully considers expandability in system design, supports the combined requirements of different functional modules of various satellite platforms, reserves load intelligent processing and solid-storage high-speed channels in the routing and switching module, and supports the modules to be incorporated into the platform comprehensive electronic single machine.
A) The routing and exchanging module can communicate with inter-satellite links through inter-satellite interfaces, and perform load data interaction such as early warning information, detection information, neighborhood images and the like with other satellites;
b) The routing and switching module can receive load data such as an optical camera, a circular scanning radar, SAR, electric detection, optics, radar and the like through a load interface;
C) Through the routing and exchanging module, other modules or devices can communicate with the load intelligent processing unit/module, and original load data, inter-satellite data, solid-state data and the like are sent to the load intelligent processing module for processing or the load intelligent processing module sends processed results to the modules such as data transmission, solid-state or tactical distribution and the like;
d) Through the routing and exchanging module, other modules or devices can communicate with the fixed storage unit/module, original load data, inter-satellite data, intelligent processing modules and the like are sent to the fixed storage module for storage or the fixed storage module sends the stored data to the data transmission, load intelligent processing or inter-satellite device;
e) Through the routing and exchanging module, other modules or devices can communicate with the data transmission module, and load data, inter-satellite data, intelligent processing module data and the like can be sent to the data transmission module for downloading;
F) Through the routing and switching module, other modules or devices can communicate with the central machine module, for example, the state information of other satellites can be sent to the central machine module for cooperative work, and the central machine module can also send the information of the satellite to other satellites;
G) Through the routing and switching module, other modules or devices can communicate with the satellite-to-ground measurement and control module, and information such as ship coordinates and the like which are intelligently processed and calculated by the load can be distributed through a tactical distribution function.
Embodiment 6, mission planning data stream:
the task planning flow of the integrated electronic system of the platform is shown in fig. 7, is consistent with the remote control data flow, fully considers the expandability when the integrated electronic system of the platform is designed, and supports the combined requirements of different functional modules of various satellite platforms.
The sources of the task planning data mainly comprise an inter-satellite interface, a relay interface, track information calculated by the central machine, and the like, the central machine performs task planning calculation, and the calculated interfaces are sent to other satellites through the inter-satellite interface.
A) The satellite-to-ground measurement and control module can receive task planning data through a satellite-to-ground measurement and control channel, can also receive the task planning data through the satellite-to-ground measurement and control channel, and can send the task planning data to the telemetry and remote control module through a platform comprehensive electronic internal bus after receiving is completed;
B) The space-earth integrated satellite-earth relay panoramic beam module can receive task planning data through a satellite-earth measurement and control channel, can also receive task planning data through a relay and a panoramic beam channel, and can send the task planning data to the telemetry and remote control navigation module through a platform comprehensive electronic internal bus after receiving;
C) The routing and switching module can receive task planning data through an inter-satellite link, and can send the task planning data to the telemetry and remote control module through a platform comprehensive electronic internal bus after receiving;
d) After the telemetry and remote control module receives the task planning data of the satellite-to-ground, relay and inter-satellite links, if the task planning data is the secret data, the decryption is firstly carried out, and the decrypted data is sent to the central machine module;
e) The central machine module sends the task planning result calculated according to the task planning data to the telemetry and remote control module for encryption;
F) The telemetry and remote control module can send telemetry data to the routing and switching module through a medium-low speed bus and to other stars through an inter-satellite link interface.
The above embodiments of the present invention do not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention as set forth in the appended claims.
Claims (1)
1. A constellation satellite integrated high-speed data interaction network system is characterized in that,
The system comprises an inter-satellite routing link, an inter-satellite single machine device, a platform comprehensive electronic device and an SRIO interactive network system, wherein:
the SRIO interaction network system connects different chips of each functional module and single module in the inter-satellite routing link, the inter-satellite single machine equipment and the platform integrated electronic equipment;
The SRIO interaction network system realizes interconnection, information interaction and sharing of inter-satellite routing links, each single-machine device in the satellite and each functional module in the platform integrated electronic device by setting an integrated high-speed interaction network, a routing allocation strategy and a protocol conversion algorithm;
The connection and interaction between the SRIO interaction network system and the inter-satellite routing link are realized based on a CPU, an FPGA, an external data interface and an internal exchange port, wherein:
The CPU realizes an inter-satellite routing networking algorithm, the FPGA is used for data access, protocol conversion and data forwarding, and the external data interface is connected with an inter-satellite routing link terminal of the satellite; the inter-satellite switching port is an SRIO port and is connected with the SRIO port of the inter-satellite data switching unit and used for interconnecting the inter-satellite routing unit and the inter-satellite switching unit, so that an inter-satellite group network is routed to be a switching node of the inter-satellite switching;
The inter-satellite group network receives inter-satellite remote sensing information, measurement and control information and task planning data of an inter-satellite routing link through an external data interface, is accessed into an integrated high-speed interaction network, and is transmitted to each single machine device in the platform and each module in the platform comprehensive electronic single machine after being distributed by a switching network route;
various types of data of other single-machine equipment and platform integrated electronic equipment in the satellite are also transmitted to an inter-satellite routing link through an integrated high-speed interaction network, and are transmitted to other satellites through the inter-satellite routing link;
The SRIO interaction network system is provided with an intra-satellite data exchange SRIO port, and a platform processing module, an interface module and a storage module in the platform integrated electronic equipment are connected to the intra-satellite data exchange SRIO port through an SRIO bus of an equipment internal bottom plate by utilizing an SRIO and a GTX interface of FPGA, CPU, DSP devices, so that board-level interconnection is realized;
The processing module, the interface module and the storage module are communicated with the bus, the platform assembly and the equipment through the CAN, the UART and the analog acquisition interface to obtain low-speed data, realize conversion of a non-SRIO bus protocol through an FPGA high-performance device in the module, and are connected to an integrated SRIO exchange port to realize that the platform data is accessed into an integrated high-speed interaction network;
The in-satellite single machine equipment comprises in-satellite remote sensing load equipment, a load on-orbit processing unit and data transmission subsystem equipment, wherein the in-satellite remote sensing load equipment, the load on-orbit processing unit and the data transmission subsystem equipment are connected to an integrated high-speed interaction network through a high-speed bus interface;
The high-speed bus interface comprises an SRIO interface, a 2711 interface and an LVDS interface, wherein the SRIO interface is directly connected to the integrated SRIO switching port, the 2711 interface and the LVDS interface are connected to the integrated SRIO switching port after protocol conversion of the FPGA, and access of load original data and information data after on-orbit processing is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211059102.1A CN115441934B (en) | 2022-08-31 | 2022-08-31 | Constellation satellite integrated high-speed data interaction network architecture |
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