CN213754769U - Remote-control integrated multilink high-speed data communication load system - Google Patents
Remote-control integrated multilink high-speed data communication load system Download PDFInfo
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- CN213754769U CN213754769U CN202022784179.8U CN202022784179U CN213754769U CN 213754769 U CN213754769 U CN 213754769U CN 202022784179 U CN202022784179 U CN 202022784179U CN 213754769 U CN213754769 U CN 213754769U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The utility model discloses a communication and remote integrated multilink high-speed data communication load system, a main control module is respectively connected with a satellite-ground microwave communication module, a high-speed spatial data relay module, a high-speed data transmission communication module and a ground remote sensing camera module bus; the remote ground sensing camera module is used for shooting and acquiring image data and/or video data; the high-speed data transmission communication module is used for receiving image data and/or video data and transmitting the image data and/or video data to the ground signal station through an antenna of the high-speed data transmission communication module; the high-speed spatial data relay module is used for realizing data routing and exchange between the ground remote sensing camera module and the satellite-ground microwave communication module; the satellite-ground microwave communication module is used for carrying out communication processing on image data and/or video data or ground signals needing to be transmitted. All modules in the device of the utility model are designed with light weight, miniaturization and low power consumption, and can execute more functions while keeping small volume and mass; the transmission bandwidth is larger, and the data transmission speed is faster.
Description
Technical Field
The utility model belongs to the satellite communication field is received a little to the low orbit, especially relates to a lead to high-speed data communication load system of distant integrative multilink.
Background
In recent years, a space-based internet system based on low-orbit commercial micro-nano satellites and application thereof are increasingly concerned, a plurality of international and domestic space agencies and commercial space companies propose a construction plan of a low-orbit internet satellite constellation, the low-orbit commercial satellites are short in verification period and low in cost, and the functions of traditional large satellites can be completed through rapid networking of a plurality of satellites. However, due to the factors such as cost, power consumption and weight of the commercial micro-nano satellite, the current low-orbit commercial micro-nano satellite load generally has the problems of single function, difficult performance meeting application requirements, low reliability and the like, and the application of the low-orbit commercial satellite in a space-ground integrated information network is limited.
At present, in the field of domestic space-based internet, a commercial micro-nano satellite with the load of less than 100kg has a single function of a load system and poor performance and reliability, and is difficult to support the long-term stable application requirement of space-ground networking. In addition, the satellite-ground communication link of the existing commercial micro-nano satellite has low transmission rate, insufficient bandwidth, small transmission power and narrow beam, is difficult to support networking communication of a plurality of ground stations, lacks the high-speed routing and switching capacity of high-capacity service data, and is difficult to support application of a plurality of services.
SUMMERY OF THE UTILITY MODEL
The technical purpose of the utility model is to provide a lead to high-speed data communication load system of distant integrative multilink to solve that low orbit commercial receives satellite load ubiquitous function singleness, performance are difficult to satisfy application demand, the not high technical problem of reliability.
In order to solve the above problem, the technical scheme of the utility model is that:
a remote-control integrated multilink high-speed data communication load system comprises: the system comprises a multi-beam phased array antenna module, a satellite-ground microwave communication module, a high-speed spatial data relay module, a high-speed data transmission communication module, a main control module and a ground remote sensing camera module;
the main control module is respectively connected with the satellite-ground microwave communication module, the high-speed spatial data relay module, the high-speed data transmission communication module and the ground remote sensing camera module through buses and is used for outputting control commands to control each module on the buses;
the remote ground sensing camera module is used for shooting and acquiring image data and/or video data;
the high-speed data transmission communication module is in signal connection with a first output port of the remote ground sensing camera module and is used for receiving image data and/or video data and transmitting the image data and/or video data to the ground signal station through an antenna of the high-speed data transmission communication module;
the input port of the high-speed spatial data relay module is in signal connection with the second output port of the remote sensing camera module, the output port of the high-speed spatial data relay module is in signal connection with the satellite-ground microwave communication module, and the high-speed spatial data relay module is used for realizing data routing and exchange between the remote sensing camera module and the satellite-ground microwave communication module;
the satellite-ground microwave communication module is in signal connection with the multi-beam phased array antenna module and is used for carrying out communication processing on image data and/or video data to be transmitted and transmitting the image data and/or the video data to the ground signal station through the multi-beam phased array antenna module, and carrying out communication processing on ground signals sent by the ground signal station and transmitting the ground signals to the main control module through the high-speed spatial data relay module.
The main control module comprises a satellite calculation submodule and an attitude calculation submodule, the satellite calculation submodule controls each module on the bus through the bus, and the attitude calculation submodule acquires orbit information through broadcast ephemeris calculation.
The high-speed data transmission communication module comprises a digital signal processing submodule and a gallium nitride power amplification submodule which are in signal connection arrangement, wherein the digital signal processing submodule receives image data and/or video data and performs storage, multiplexing, coding, framing and modulation processing, and the gallium nitride power amplification submodule is used for performing power amplification on the data processed by the digital signal processing submodule and transmitting the data to a ground signal station through an antenna of the high-speed data transmission communication module.
Specifically, the high-speed spatial data relay module is designed as a dual-computer, and is used for realizing cold backup to improve system stability, and also used as two routing contacts to support data routing and exchange with each module.
The satellite-ground microwave communication module is used for realizing format conversion, framing, coding, modulation, digital-to-analog conversion and filtering amplification of image data and/or video data to be transmitted, and simultaneously finishing the filtering, amplification, orthogonal down-conversion, analog-to-digital conversion, demodulation, decoding, frame decoding and data format conversion of ground signals.
The multi-beam phased array antenna module comprises a ground receiving antenna group and a ground transmitting antenna group, wherein the ground receiving antenna group is used for receiving ground signals, the ground transmitting antenna group is used for transmitting signals to the ground, and antenna units in the ground receiving antenna group and the ground transmitting antenna group are longitudinally integrated and transversely assembled and distributed in a rectangular grid.
Specifically, the first output port is a low voltage differential port; the second output port is a gigabit network port; the input port of the high-speed spatial data relay module is a kilomega network port; the output ports of the high-speed spatial data relay module include low-voltage differential ports and gigabit network ports.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) all modules in the device of the utility model are designed with light weight, miniaturization and low power consumption, the total mass of all modules is less than 13 kg, the mass is small, the integration level is high, the peak power is less than 200W, the energy consumption is low, and compared with the existing low-orbit commercial micro-nano satellite, the device can execute more functions while keeping the volume and the mass small;
(2) the utility model discloses a CAN bus carries out the functional configuration of multimode, improves the integrated level, and image data and video data accessible low voltage difference port between and the giga network port realize data transmission and exchange to export data to the outside through Ka frequency channel star-earth link and X frequency channel star-earth link, above-mentioned data transmission link has the high reliability of mutual redundancy, and Ka frequency channel star-earth link bandwidth CAN reach 15Mbps, X frequency channel star-earth link row bandwidth reaches 40Mbps, and the bandwidth is bigger, and data transmission speed is faster;
(3) the utility model discloses set up high-speed spatial data relay module, adopted the design of duplex, both can be for each other cold backup in order to improve system reliability, also can regard as two route contacts simultaneous workings, support a plurality of satellite loads to carry out high-speed data route and exchange, can pass through respectively between the low voltage difference port and carry out data routing between the gigabit network port, carry out image data and video data according to the Ka frequency channel of the in orbit condition or X frequency channel link and pass down.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention.
Fig. 1 is a schematic diagram of a module structure of a remote-communication integrated multilink high-speed data communication load system according to the present invention;
fig. 2 is a schematic structural diagram of the high-speed data transmission communication module according to the present invention.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The following provides a further detailed description of a remote-control integrated multilink high-speed data communication load system applied to a low-orbit micro-nano satellite according to the present invention with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims.
Referring to fig. 1, a communication-remote integrated multilink high-speed data communication load system applied to a low-orbit micro-nano satellite includes: the system comprises a multi-beam phased array antenna module, a satellite-ground microwave communication module, a high-speed spatial data relay module, a high-speed data transmission communication module, a main control module and a ground remote sensing camera module.
Specifically, referring to fig. 1, in this embodiment, the main control module is respectively connected to the satellite-ground microwave communication module, the high-speed spatial data relay module, the high-speed data transmission communication module, and the ground remote sensing camera module through a bus, specifically, the main control module includes a satellite affair calculation submodule and an attitude calculation submodule, the satellite affair calculation submodule configures the operating parameters of the satellite-ground microwave communication module, the high-speed spatial data relay module, the high-speed data transmission communication module, and the ground remote sensing camera module through a CAN bus, and the attitude calculation submodule calculates the orbit information through a broadcast ephemeris.
Referring to fig. 1, in the present embodiment, the remote ground sensing camera module is used for capturing and acquiring image data and/or video data, the remote ground sensing camera module is mainly a remote ground sensing camera and employs a CMOS detector, and in the present embodiment, the remote ground sensing camera module has the following parameters, specifically, the resolution is 5m × 600km, the width is 12km × 16km, and the imaging spectral range is 0.45um to 0.75 um. The remote ground sensing camera module is provided with a gigabit network (GE) port and a Low Voltage Differential Signaling (LVDS) port and is used for transmitting image data and/or video data obtained by shooting to the high-speed space data relay module and the high-speed data transmission communication module respectively.
Specifically, referring to fig. 1 and fig. 2, the high-speed data transmission communication module is an X-band gallium nitride solid-state amplifier high-speed data transmission communication machine, which adopts a miniaturized design. The high-speed data transmission communication module is provided with an LVDS port and is in signal connection with the LVDS port of the remote ground sensing camera module through the LVDS port of the high-speed data transmission communication module to receive image data and/or video data. Specifically, the high-speed data transmission communication module comprises a digital signal processing submodule and a gallium nitride power amplifier submodule. The digital signal processing submodule comprises a digital signal processing unit and an information source unit, the digital signal processing unit receives image data and video data and carries out storage, multiplexing, coding and framing processing, the processed data is subjected to QPSK radio frequency modulation through the information source unit data, then the processed data is subjected to power amplification to 20W through a gallium nitride power amplification submodule, and finally the data is output to an X-frequency band ground antenna of a ground signal station through a data transmission antenna of a high-speed data transmission communication module, the ground antenna demodulates the obtained X-frequency signal through a ground demodulation terminal, and downlink of an X-frequency band satellite-ground link of the image data and the video data is realized. In this embodiment, specific parameters of the high-speed data transmission communication module are as follows, the module mass is 1.7kg, the static power consumption is 13.5W, the transmission power is 43dBW, and the maximum transmission bandwidth is 40 Mbps.
Referring to fig. 1, in this embodiment, the high-speed spatial data relay module is provided with a 422 port in signal connection with the CAN bus, and is controlled by the main control module through the 422 port, and is further provided with a 422 port in signal connection with the satellite-ground microwave communication module. In addition, the system is also provided with GE ports and LVDS ports, wherein the GE ports comprise 2 GE ports in signal connection with the GE port of the remote ground sensing camera module and the GE port of the satellite-ground microwave communication module, and the LVDS ports are in signal connection with the LVDS port of the satellite-ground microwave communication module. The high-speed space data relay module is designed as a dual-computer, can be mutually cold-backed to improve the reliability of the system, can also be used as two routing contacts to work simultaneously, supports high-speed data routing and exchange with each module, can perform data routing through a GE port and an LVDS port respectively, and performs data downloading on a Ka frequency band or an X frequency band according to the on-orbit condition. The high-speed network data processing submodule of the high-speed spatial data relay module adopts an FPGA + ARM architecture, and an ARM processor completes tasks such as response of CAN bus instructions with a main control module and management of a communication link. The FPGA device is responsible for data processing, data routing distribution, data transceiving communication with other equipment and other functions. The FPGA adopts Virtex5 series devices of Xilinx company, the ARM chip and the V5FPGA chip carry out data interaction through Ethernet RGMII, GPIO and SPI ports, and the ARM chip and the A3P1000 FPGA chip carry out configuration data interaction through the SPI ports; the A3P1000 FPGA chip is responsible for completing the functions of dynamic refreshing and remote updating configuration of the V5 FPGA. In this embodiment, the specific parameters of the high-speed spatial data relay module are as follows, the module mass is 2.3kg, the power consumption is 15W, the maximum single-channel transmission bandwidth is 100Mbps, and the data throughput can reach 20 channels/5 Gbps.
Referring to fig. 1, in the present embodiment, the satellite-ground microwave communication module includes a channel sub-module, a signal processing sub-module, and a plurality of ports, and supports a plurality of ground gateway stations and service station users to perform independent full-duplex communication with the ground-ground microwave communication payload through the multi-beam phased array antenna module. The ports comprise double 422 ports, GE ports and LVDS ports, the 422 ports adopt main and standby cold backup, one 422 port is in signal connection with a CAN bus and receives configuration information from a main control module, and the other 422 port is in signal connection with a high-speed spatial data relay module and also receives the configuration information from the main control module; the GE port and the LVDS port are in signal connection with the corresponding ports of the high-speed spatial data relay module so as to realize interactive transmission of data. In addition, data and control signal interaction with the multi-beam phased array antenna module is realized based on the channel sub-module, wherein the control signal is a signal which is sent to the multi-beam phased array antenna module by the satellite-ground microwave communication module after receiving the control command of the attitude calculation sub-module, so that the antenna is controlled to scan the beam angle, and the signal is a 40MHz intermediate frequency signal. The signal processing submodule adopts an ARM + FPGA framework, operates a FREERTS operating system, and is used for realizing format conversion, framing, coding, modulation, digital-to-analog conversion and filtering amplification of downlink signal data and simultaneously finishing the filtering, amplification, orthogonal down-conversion, analog-to-digital conversion, demodulation, decoding, deframing and data format conversion of uplink signal data. The data interaction is realized by adopting an FDMA (frequency division multiple access) mode, simultaneously having a plurality of gateway stations and service station transceiving processing channels and through a satellite-ground transmitting antenna and a satellite-ground receiving antenna which are arranged on the data interaction device.
Referring to fig. 1, in the present embodiment, the multi-beam phased array antenna module is configured to receive data of the satellite-ground microwave communication module, output the data to the outside, receive an external signal, and transmit the signal to the satellite-ground microwave communication module in an uplink manner.
The multi-beam phased array antenna module comprises a ground receiving antenna group and a ground transmitting antenna group, wherein the ground receiving antenna group is used for receiving ground signals, and the ground transmitting antenna group is used for transmitting the signals to the ground. The multi-beam phased array antenna module is a tile-type small Ka frequency band multi-beam satellite-ground phased array antenna, is provided with a plurality of independent intelligent beams, and controls the beams to be independent; the antenna adopts a Longitudinal Integrated Transverse Assembly (LITA) mode to reduce the weight and the size of the whole machine and meet the design constraint of the micro-nano satellite; the antenna adopts a rectangular grid array design, so that the processing complexity is reduced; the array surface unit, the TR component, the beam forming network, the feed distribution network and the wave control signal distribution network in the module are all designed to be regular in overall dimension, the antenna units adopt microstrip antennas, and the failure of a single antenna unit or a part of the antenna units only causes the performance reduction of a link, does not cause the failure of the whole machine, and has long service life. In order to reduce the influence of space environment factors such as solar radiation, atomic oxygen, high-low temperature alternation and the like on an antenna radiation array, a Kevlar wave-transmitting antenna housing is additionally arranged outside the array, and thermal control white paint is sprayed on the surface of the antenna housing. The specific parameters of the multi-beam phased array antenna module are as follows: the working frequency band is Ka, the maximum transmission bandwidth is 14Mbps, the wave beams are 3 (simultaneously working), the working mode is full duplex, the multiple access mode is FDMA, the satellite-ground transmitting antenna EIRP is more than or equal to 24.1dBW, the satellite-ground receiving antenna EIRP is more than or equal to-11.1 dB/K, the azimuth angle is 0-360 degrees, the pitch angle is +/-60 degrees, the half-power wave beam width is 8 degrees, the coding mode is LDPC (1/2), the module quality is 4.8kg, and the module power consumption is 97W.
In this embodiment, a device power supply (not shown in the figure) is reasonably selected according to the power condition of each load, the high-power multi-beam phased array antenna module, the satellite-ground microwave communication module and the gallium nitride power amplifier sub-module are powered by +28V, the high-speed spatial data relay module is powered by +12V, the ground remote sensing camera module and the digital signal processing sub-module are powered by +5.5V, and each single machine is independently provided with a bus protection circuit and a surge suppression circuit.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (7)
1. A remote-control integrated multilink high-speed data communication load system, comprising: the system comprises a multi-beam phased array antenna module, a satellite-ground microwave communication module, a high-speed spatial data relay module, a high-speed data transmission communication module, a main control module and a ground remote sensing camera module;
the main control module is respectively connected with the satellite-ground microwave communication module, the high-speed spatial data relay module, the high-speed data transmission communication module and the ground remote sensing camera module through buses, and is used for outputting control commands to control each module on the buses;
the remote ground sensing camera module is used for shooting and acquiring image data and/or video data;
the high-speed data transmission communication module is in signal connection with a first output port of the remote ground sensing camera module and is used for receiving the image data and/or the video data and transmitting the image data and/or the video data to a ground signal station through an antenna of the high-speed data transmission communication module;
the input port of the high-speed spatial data relay module is in signal connection with the second output port of the remote ground sensing camera module, the output port of the high-speed spatial data relay module is in signal connection with the satellite-ground microwave communication module, and the high-speed spatial data relay module is used for realizing data routing and exchange between the remote ground sensing camera module and the satellite-ground microwave communication module;
the satellite-ground microwave communication module is in signal connection with the multi-beam phased array antenna module, and is used for performing communication processing on image data and/or video data to be transmitted, transmitting the image data and/or the video data to a ground signal station through the multi-beam phased array antenna module, performing communication processing on a ground signal sent by the ground signal station, and transmitting the ground signal to the main control module through the high-speed spatial data relay module.
2. The remote-control integrated multilink high-speed data communication load system according to claim 1, wherein the main control module comprises a satellite affair calculation submodule and an attitude calculation submodule, the satellite affair calculation submodule controls each module on the bus through the bus, and the attitude calculation submodule acquires orbit information through broadcast ephemeris calculation.
3. The remote-control integrated multilink high-speed data communication load system according to claim 1, wherein the high-speed data transmission communication module includes a digital signal processing submodule and a gallium nitride power amplification submodule which are in signal connection arrangement, the digital signal processing submodule receives the image data and/or the video data and performs storage, multiplexing, coding, framing and modulation processing, and the gallium nitride power amplification submodule is used for performing power amplification on the data processed by the digital signal processing submodule and transmitting the data to a ground signal station through an antenna of the high-speed data transmission communication module.
4. The remote-control integrated multilink high-speed data communication load system according to claim 1, wherein the high-speed spatial data relay module is designed as a dual machine, and is used for implementing a cold backup to improve system stability and serving as two routing contacts to support data routing and switching with each module.
5. The remote-control integrated multilink high-speed data communication load system according to claim 1, wherein the satellite-ground microwave communication module is configured to implement format conversion, framing, encoding, modulation, digital-to-analog conversion and filtering amplification on the image data and/or video data to be transmitted, and implement filtering, amplification, quadrature down-conversion, analog-to-digital conversion, demodulation, decoding, deframing and data format conversion on the ground signal.
6. The remote integrated multilink high-speed data communication load system according to claim 1, wherein said multi-beam phased array antenna module comprises a ground-to-ground receiving antenna group and a ground-to-ground transmitting antenna group, said ground-to-ground receiving antenna group is used for receiving ground signals, said ground-to-ground transmitting antenna group is used for transmitting signals to the ground, antenna units in said ground-to-ground receiving antenna group and said ground-to-ground transmitting antenna group are longitudinally integrated and transversely assembled, and are distributed in a rectangular grid.
7. The remote-control integrated multilink high-speed data communication load system according to any one of claims 1 to 6, wherein the first output port is a low voltage differential port; the second output port is a gigabit network port; the input port of the high-speed spatial data relay module is a kilomega network port; the output ports of the high-speed spatial data relay module comprise a low-voltage differential port and a gigabit network port.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115174874A (en) * | 2022-07-22 | 2022-10-11 | 中国科学院空间应用工程与技术中心 | System, method, medium and equipment for world video interaction based on soft switch |
| CN116074480A (en) * | 2023-04-03 | 2023-05-05 | 银河航天(北京)通信技术有限公司 | Image acquisition method and device based on double cameras and storage medium |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115174874A (en) * | 2022-07-22 | 2022-10-11 | 中国科学院空间应用工程与技术中心 | System, method, medium and equipment for world video interaction based on soft switch |
| CN116074480A (en) * | 2023-04-03 | 2023-05-05 | 银河航天(北京)通信技术有限公司 | Image acquisition method and device based on double cameras and storage medium |
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