CN112910542A - Measure and control ground detection equipment and system - Google Patents
Measure and control ground detection equipment and system Download PDFInfo
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- CN112910542A CN112910542A CN202110096401.1A CN202110096401A CN112910542A CN 112910542 A CN112910542 A CN 112910542A CN 202110096401 A CN202110096401 A CN 202110096401A CN 112910542 A CN112910542 A CN 112910542A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a measuring and controlling ground detection device and system, the device includes: the system comprises a plurality of channel units, a satellite S-band remote measurement unit and a satellite remote measurement unit, wherein the channel units are used for receiving satellite S-band remote measurement signals, and injecting remote control direct instructions, remote control indirect instructions and data; and the power supply and distribution module is used for uniformly supplying power to the plurality of channel units. The portable measurement and control ground detection equipment and the system simplify the labor division interface of the ground detection equipment and the comprehensive test equipment in the traditional measurement and control ground detection equipment, and redefine the units. By adopting the modularization technology, the integration of the microwave network module, the radio frequency module, the baseband module, the communication interface module and the power supply and distribution module can be realized, so that the ground detection equipment can be correspondingly adjusted according to the number of satellites, parameters and different communication interfaces, and the task adaptability and the portability of the system can be enhanced.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to measurement and control ground detection equipment and a measurement and control ground detection system.
Background
As an important component of spacecraft communications, satellites provide a vast array of voice, image, and data communications services. Satellites are often used in weapon systems, remote sensing systems, navigation and positioning systems, manned space and deep space exploration tasks, relying on the characteristics of high confidentiality, high anti-interference and high viability in war environments. The measurement and control ground detection equipment is an important communication device in the satellite development and test process, and bears the test interaction of specific remote control instructions, specific data, remote measurement signals, distance measurement, speed measurement, orbit measurement and other information before the satellite enters the orbit. The performance of the ground detection equipment is to some extent directly mapped to the health of the satellite after orbit.
With the development of large-scale integrated circuits, micro-electromechanical technology, new materials and processes, satellites gradually show the trends of miniaturization, number quantization, short period and functionalization, and the currently common measurement and control ground detection equipment gradually expands towards the generalization direction due to the following defects: 1) the universality and the expandability are not realized; 2) the volume is huge, and the method is not suitable for external field debugging; 3) the development period is long, and nodes of the model development period are seriously delayed; 4) aiming at different models of specially matched test equipment, the codes are complex; 5) reliability and maintenance are relatively low; 6) the communication interfaces are fewer, and the device is difficult to adapt to various use conditions; 7) the frequency point is single and is difficult to adapt to a wide range of frequency bands; 8) debugging can only be performed for a single satellite.
Disclosure of Invention
In view of the above, in order to solve at least one of the above drawbacks, an object of the present invention is to provide a measurement and control ground inspection apparatus.
The invention also aims to provide a measurement and control ground detection system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the first aspect of the present invention provides a measurement and control ground detection device, which includes:
the system comprises a plurality of channel units, a satellite S-band remote measurement unit and a satellite remote measurement unit, wherein the channel units are used for receiving satellite S-band remote measurement signals, and injecting remote control direct instructions, remote control indirect instructions and data;
and the power supply and distribution module is used for uniformly supplying power to the plurality of channel units.
In a specific embodiment, the channel unit includes: a microwave network module, a radio frequency module, a baseband module and a communication interface module, wherein
The microwave network module is used for performing combining path processing on radio frequency signals transmitted by a satellite, performing out-of-band processing on input signals and performing out-of-band suppression on output signals;
the radio frequency module is used for amplifying, filtering and up-converting the input digital signal into a radio frequency signal with certain power and outputting the radio frequency signal;
the baseband module is used for completing the selection, coding and decoding, encryption and decryption and framing of a transmission system of a signal;
and the communication interface module is used for carrying out signal transmission with the upper computer.
In a specific embodiment, the microwave network module includes: 3dB bridge and duplexer, wherein
The 3dB bridge adopts an orthogonal hybrid bridge mode and a microstrip line branch coupler structure and is used for equally dividing the power of an input port between an output port and a coupling port when being matched with all ports;
and the duplexer is used for finishing the transceiving suppression in the uplink and the downlink.
In one embodiment, the rf module includes: a radio frequency unit and a front end signal conditioning module, wherein
The radio frequency unit comprises a filtering circuit, a low-noise amplifying circuit and a transformer circuit and is used for finishing signal frequency and amplitude change.
In one embodiment, the baseband module comprises an analog-to-digital conversion circuit, a digital-to-analog conversion circuit and a core processor, wherein
The analog-to-digital conversion circuit is constructed on the basis of a successive approximation type analog-to-digital converter;
the digital-to-analog conversion circuit is built on the basis of the DA chip, the filter and the amplitude adjusting circuit.
In a specific embodiment, the communication interface module comprises a network interface, a CAN, 422 and a USB interface, and communicates with the upper computer through a corresponding interface chip.
In a specific embodiment, the microwave network module is connected to a radio frequency unit of the radio frequency module through a duplexer, the radio frequency module is connected to an a/D analog-to-digital converter or a D/a digital-to-analog converter of the baseband module through a front-end signal conditioning module, the baseband module is connected to the communication interface module through a core processor, and the communication interface module performs information transmission with an upper computer through a driver.
In one embodiment, the power supply and distribution module comprises: fuse, surge suppression circuit, EMC filtering or EMI filtering and DC/DC conversion circuit, wherein
The fuse performs overload protection according to the power conversion result;
the surge suppression circuit adopts different DC/DC modules to perform power conversion corresponding to different power supply requirements.
The second aspect of the present invention provides a measurement and control ground inspection system, which includes:
a plurality of satellites;
the measurement and control ground detection equipment of the first aspect of the invention; and
an upper computer, wherein
Each satellite is connected with a channel unit;
and the upper computer is connected with a communication interface module in the measurement and control ground detection equipment and is used for identifying the multi-channel signals.
The invention has the following beneficial effects:
the portable measurement and control ground detection equipment and the system simplify the labor division interface of the ground detection equipment and the comprehensive test equipment in the traditional measurement and control ground detection equipment, and redefine the units. By adopting the modularization technology, the integration of the microwave network module, the radio frequency module, the baseband module, the communication interface module and the power supply and distribution module can be realized, so that the ground detection equipment can be correspondingly adjusted according to the number of satellites, parameters and different communication interfaces, and the task adaptability and the portability of the system can be enhanced. In addition, the code writing of the measurement and control ground inspection system has universality, is simple to change and has better maintainability. Due to the modular design, the measurement and control ground detection equipment is convenient to carry.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic diagram of a measurement and control ground detection device provided by the invention.
Fig. 2 shows a schematic diagram of a measurement and control ground detection system provided by the invention.
Fig. 3 shows a schematic diagram of a single channel design of the measurement and control ground detection system provided by the invention.
Fig. 4 shows a flowchart of a design procedure of the measurement and control ground detection system provided by the invention.
Detailed Description
In order to make the technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
At present, the data transmission mode of the measurement and control ground detection equipment mainly comprises a serial port, a network port and the like, and the number of the serial ports is more than that of RS-422/485. The maximum transmission rate of serial port data is usually only 100Mb/s and below, and the maximum connectable equipment is only about 30; compared with a serial port, the Ethernet can reach the transmission rate of 1Gbit/s, and the transmission length can reach 500 m. However, neither serial nor ethernet support hot plug and play. The USB2.0 is a novel serial communication interface which is efficient, quick, low in price, small in size and capable of supporting hot plugging, the maximum transmission rate of the novel serial communication interface can reach 5Gb/s, the maximum connectable devices can reach 126, and the novel serial communication interface has obvious advantages in the aspect of transmission rate compared with other computer buses. Therefore, the compatibility of various communication modes in the generalization process also becomes a key aspect to be considered in the development of portable measurement and control ground detection equipment.
As shown in fig. 1, in one aspect, an embodiment of the present invention provides a measurement and control ground inspection apparatus, including:
and the channel units are used for receiving the satellite S-band telemetering signals, and injecting remote control direct instructions, remote control indirect instructions and data.
In a specific embodiment, the channel unit includes: a microwave network module, a radio frequency module, a baseband module and a communication interface module, wherein
And the microwave network module is used for performing combining path processing on the radio-frequency signals transmitted by the satellite, performing out-of-band processing on the input signals and performing out-of-band suppression on the output signals.
In a specific embodiment, the microwave network module includes: 3dB bridge and duplexer, wherein
The 3dB bridge adopts an orthogonal hybrid bridge mode and a microstrip line branch coupler structure, and is used for equally dividing the power of an input port between an output port and a coupling port when being matched with all ports, and almost no output is generated at an isolation port.
The duplexer is used for finishing the transmit-receive suppression in the uplink and the downlink and can be designed by adopting a band-pass filter.
The measurement and control ground detection equipment provided by the invention adopts a modular design, has small volume and is convenient to carry, the development of universal and portable measurement and control ground detection equipment is realized, the satellite communication test efficiency and the satellite test quantity are improved, and the reliability of the equipment is also ensured.
And the radio frequency module is used for amplifying, filtering and up-converting the input digital signal into a radio frequency signal with certain power and outputting the radio frequency signal.
In one embodiment, the rf module includes: a radio frequency unit and a front end signal conditioning module, wherein
The radio frequency unit comprises a filtering circuit, a low-noise amplifying circuit and a transformer circuit and is used for finishing signal frequency and amplitude change.
In one embodiment, the rf module is further differentiated for uplink/downlink signals. Aiming at a transmission signal, the radio frequency module has the function of converting an input digital signal into a radio frequency signal with certain power for output by amplification, filtering, up-conversion and the like; for the received signal, the radio frequency module outputs the received downlink signal to the baseband module after processing such as filtering, amplification, down-conversion, AGC and the like. The transmitting module can adopt direct conversion and quadratic conversion methods, and the receiving module can adopt a heterodyne receiver structure and a zero intermediate frequency receiver structure.
The measurement and control ground detection equipment provided by the invention adopts a modular design, has small volume and is convenient to carry, the development of universal and portable measurement and control ground detection equipment is realized, the satellite communication test efficiency and the satellite test quantity are improved, and the reliability of the equipment is also ensured.
And the baseband module is used for completing the selection, coding and decoding, encryption and decryption and framing of a transmission system of the signal.
In one embodiment, the baseband module comprises an analog-to-digital conversion circuit, a digital-to-analog conversion circuit and a core processor, wherein
The analog-digital conversion circuit is built on the basis of a successive approximation type analog-digital converter, and a chip is only required to select a high-speed, low-power-consumption and multi-channel converter.
The digital-to-analog conversion circuit is built on the basis of the DA chip, the filter and the amplitude adjusting circuit.
The core processor can select a low-price and low-power consumption programmable unit developed for the market, such as FPGA + DSP.
The measurement and control ground detection equipment provided by the invention adopts a modular design, has small volume and is convenient to carry, the development of universal and portable measurement and control ground detection equipment is realized, the satellite communication test efficiency and the satellite test quantity are improved, and the reliability of the equipment is also ensured.
And the communication interface module is used for carrying out signal transmission with the upper computer, wherein the firmware program is downloaded in the module.
In a specific embodiment, the communication interface module comprises a network interface, a CAN, 422 and a USB interface, and communicates with the upper computer through a corresponding interface chip. The internet access CAN carry out data transmission through an ENC28J60 chip, 422 CAN realize data transceiving through 26C31 and 26C32, CAN CAN realize uploading/downloading through an iso1005 chip, and USB2.0 CAN be realized by CY7C 68013. USB2.0 requires downloading firmware programs into the respective chips.
The measurement and control ground detection equipment provided by the invention adopts a modular design, has small volume and is convenient to carry, the development of universal and portable measurement and control ground detection equipment is realized, the satellite communication test efficiency and the satellite test quantity are improved, and the reliability of the equipment is also ensured.
And the power supply and distribution module is used for uniformly supplying power to the plurality of channel units and uniformly distributing and controlling the power supply of all the modules.
In one embodiment, the power supply and distribution module comprises: fuse, surge suppression circuit, EMC filtering or EMI filtering and DC/DC conversion circuit, wherein
The power supply and distribution module can realize 220V power supply conversion through a power supply switch product, and the fuse can select a power fuse to perform overload protection according to a power supply conversion result.
The surge suppression circuit can be designed and built based on LT4363, and different DC/DC modules are adopted for power conversion corresponding to different power supply requirements.
The measurement and control ground detection equipment provided by the invention adopts a modular design, has small volume and is convenient to carry, the development of universal and portable measurement and control ground detection equipment is realized, the satellite communication test efficiency and the satellite test quantity are improved, and the reliability of the equipment is also ensured.
In a specific embodiment, the microwave network module is connected to a radio frequency unit of the radio frequency module through a duplexer, the radio frequency module is connected to an a/D analog-to-digital converter or a D/a digital-to-analog converter of the baseband module through a front-end signal conditioning module, the baseband module is connected to the communication interface module through a core processor, and the communication interface module performs information transmission with an upper computer through a driver.
In one embodiment, the microwave network module, the radio frequency module, the baseband module, the communication interface module and the power supply and distribution module respectively form an internal interface and perform internal signal transmission through the connector.
The measurement and control ground detection equipment provided by the invention breaks through the integral design scheme of the traditional measurement and control ground detection equipment, and is divided into different functional units according to the microwave network module, the radio frequency module, the baseband module, the communication interface module and the power supply and distribution module, so that the functions of receiving the satellite S-band remote measurement signals, remotely controlling direct instructions, indirect instructions and injecting data are realized.
As shown in fig. 2, in another aspect, an embodiment of the present invention provides a measurement and control ground inspection system, including:
a plurality of satellites;
the measurement and control ground detection equipment of the first aspect of the invention; and
an upper computer, wherein
Each satellite is connected with a channel unit;
and the upper computer is connected with a communication interface module in the measurement and control ground detection equipment and is used for identifying the multi-channel signals. Aiming at different upper computer communication modes, the system has not less than 4 interfaces for selection, can perform high-speed data transmission, and realizes that the uplink/downlink carrier frequency of an S frequency band, the designated bandwidth can be adjusted, the output power of a transmitter can be adjusted and the Doppler frequency can be adjusted.
The system can test a single satellite and can also test multiple satellites, and the testing of the multiple satellites can be carried out in a mode of adding modules.
The upper computer adopts health grade as the judgment basis of normal module function aiming at different modules, and adopts LabVIEW software and firmware, drive and processor software dual redundancy technology, thereby realizing the detection and recovery of soft errors.
The system combines the satellite, the ground detection equipment and the upper computer, inputs direct instructions, injection data and indirect instructions into a driving program of the upper computer, and realizes that the uplink/downlink carrier frequency of the S frequency band, the designated bandwidth, the output power of the transmitter and the Doppler frequency are adjustable.
Fig. 3 is a schematic diagram of a single channel design of the measurement and control ground inspection system according to the present invention. In fig. 3, a single satellite, that is, the satellite 1 is tested, the satellite 1, the microwave network module, the radio frequency module, the baseband module, the communication interface module, the power distribution module and the upper computer are connected in a connector assembly manner, the upper computer sends a direct instruction, injection data and an indirect instruction to the driver, the driver sends the received instruction to the signal processing, the signal processing is transmitted to the measurement and control ground inspection device and the satellite 1, then, the data of the satellite 1 to be tested is subjected to signal processing, and the data after the signal processing is stored in the upper computer.
As shown in fig. 4, for a flow chart of a design program of a measurement and control ground detection system according to the present invention, an upper computer sets initial parameters of a plurality of channel units, inputs a data acquisition or transmission instruction, stores the data in a designated address if the data of the acquisition or transmission instruction is consistent with the data of the initial parameters, determines whether the stored data is equal to the initial parameters when storing the data, and then completely stores the stored data if the stored data is equal to the initial parameters, and then processes the data.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (9)
1. A measurement and control ground detection device is characterized by comprising:
the system comprises a plurality of channel units, a satellite S-band remote measurement unit and a satellite remote measurement unit, wherein the channel units are used for receiving satellite S-band remote measurement signals, and injecting remote control direct instructions, remote control indirect instructions and data;
and the power supply and distribution module is used for uniformly supplying power to the plurality of channel units.
2. The apparatus of claim 1, wherein the channel unit comprises: a microwave network module, a radio frequency module, a baseband module and a communication interface module, wherein
The microwave network module is used for performing combining path processing on radio frequency signals transmitted by a satellite, performing out-of-band processing on input signals and performing out-of-band suppression on output signals;
the radio frequency module is used for amplifying, filtering and up-converting the input digital signal into a radio frequency signal with certain power and outputting the radio frequency signal;
the baseband module is used for completing the selection, coding and decoding, encryption and decryption and framing of a transmission system of a signal;
and the communication interface module is used for carrying out signal transmission with the upper computer.
3. The apparatus of claim 2, wherein the microwave network module comprises: 3dB bridge and duplexer, wherein
The 3dB bridge adopts an orthogonal hybrid bridge mode and a microstrip line branch coupler structure and is used for equally dividing the power of an input port between an output port and a coupling port when being matched with all ports;
and the duplexer is used for finishing the transceiving suppression in the uplink and the downlink.
4. The apparatus of claim 2, wherein the radio frequency module comprises: a radio frequency unit and a front end signal conditioning module, wherein
The radio frequency unit comprises a filtering circuit, a low-noise amplifying circuit and a transformer circuit and is used for finishing signal frequency and amplitude change.
5. The apparatus of claim 2, wherein the baseband module comprises an analog-to-digital conversion circuit, a digital-to-analog conversion circuit, and a core processor, wherein
The analog-to-digital conversion circuit is constructed on the basis of a successive approximation type analog-to-digital converter;
the digital-to-analog conversion circuit is built on the basis of the DA chip, the filter and the amplitude adjusting circuit.
6. The device of claim 2, wherein the communication interface module comprises a network interface, a CAN, 422 and a USB interface, and communicates with the upper computer through a corresponding interface chip.
7. The device according to claim 2, wherein the microwave network module is connected to the rf unit of the rf module through a duplexer, the rf module is connected to the a/D or D/a analog-to-digital converter of the baseband module through the front-end signal conditioning module, the baseband module is connected to the communication interface module through the core processor, and the communication interface module performs information transmission with the upper computer through the driver.
8. The apparatus of claim 1, wherein the power supply and distribution module comprises: fuse, surge suppression circuit, EMC filtering or EMI filtering and DC/DC conversion circuit, wherein
The fuse performs overload protection according to the power conversion result;
the surge suppression circuit adopts different DC/DC modules to perform power conversion corresponding to different power supply requirements.
9. A system for measurement and control ground detection, the system comprising:
a plurality of satellites;
the instrumentation ground test device of any one of claims 1-8; and
an upper computer, wherein
Each satellite is connected with a channel unit;
and the upper computer is connected with a communication interface module in the measurement and control ground detection equipment and is used for identifying the multi-channel signals.
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