CN104467946A - Intelligent core system with measurement and control functions and center computer function - Google Patents
Intelligent core system with measurement and control functions and center computer function Download PDFInfo
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- CN104467946A CN104467946A CN201410577984.XA CN201410577984A CN104467946A CN 104467946 A CN104467946 A CN 104467946A CN 201410577984 A CN201410577984 A CN 201410577984A CN 104467946 A CN104467946 A CN 104467946A
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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
- H04B7/18528—Satellite systems for providing two-way communications service to a network of fixed stations, i.e. fixed satellite service or very small aperture terminal [VSAT] system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
Abstract
The invention discloses an intelligent core system with measurement and control functions and a center computer function and relates to the field of rapid spacecraft platform designing. The intelligent core system solves the problems that in microsatellite integrated electronic system, a measurement and control transponder and a center computer are large in size, heavy in weight and low in functional density. The intelligent core system with the measurement and control functions and the center computer function comprises two data transmission and processing systems, an interface module and a power supply and distribution module. Each data transmission and processing system comprises an RF channel module and a data management module. The RF channel modules are used for receiving RF signals and processing the received RF signals to generate a baseband data flow, so that conversion between the RF signals and baseband data is achieved. The data management modules are used for remotely controlling telemetric terminals and computers according to the RF signals. The RF channel modules and the data management modules achieve data interaction through the interface module. The power supply and distribution module is used for transmitting power-on/off instructions to the RF channel modules and the data management modules. The intelligent core system is applicable to communication of microsatellite systems.
Description
Technical field
The present invention relates to quick spacecraft Platform Designing field.
Background technology
For the technical development of reply future space needs, consider that international environment is complicated and changeable simultaneously, China launches research to the definition and connotation that moonlet is correlated with, and progressively establishes the moonlet development with Chinese characteristics that is criterion with " fast ", " intelligence ", " cheapness ".Integrated Electronic System has been responsible in the information gathering of satellite, star/and mutual, the process in star ground and application are the electric overall level subsystems of satellite.In the Integrated Electronic System of moonlet, other unit parts all can adopt flexible and changeable design, but TT&C Transponder and central computer are the cores of any Integrated Electronic System, are minimum common divisors indispensable in electronic system.Ensure that the flexible and Reliable Design of TT&C Transponder and central computer, just can carry out the expansion of reconfigurable function unit and standardization unit on this basis, and then rapid build moonlet Integrated Electronic System.
Summary of the invention
The present invention is in order to solve in current moonlet Integrated Electronic System, and TT&C Transponder and central computer exist that volume is large, Heavy Weight and the low problem of functional density, propose the intelligent kernel system with observing and controlling and central computer function.
The intelligent kernel system with observing and controlling and central computer function comprises two data transmission processing systems, interface module and supplies Power entry module, and each data transmission processing system comprises radio-frequency channel module and data management module,
Described radio-frequency channel module is used for received RF signal, and carries out process generation base-band data stream to the radiofrequency signal received, and realizes the conversion between radiofrequency signal and base band data,
Data management module is used for according to radiofrequency signal remote-control romote-sensing terminal and computer,
Radio-frequency channel module and data management module realize data interaction by interface module,
Be used for sending to radio-frequency channel module and data management module powering up instruction or cut-offing instruction for Power entry module.
Beneficial effect: the intelligent kernel system with observing and controlling and central computer function that the present invention proposes is extracted traditional TT&C system and the least common multiple of central computer, take into account the reliability of TT&C system and central computer, possesses standard interface, be beneficial to fast integration and test fast, being responsible for satellite data process, remote measuring and controlling transfer of data tie surface station complete tracking, range finding, orbit determination etc. to satellite.The present invention is applicable to the small satellite subsystem design field of highly reliable, high functional density.
Accompanying drawing explanation
Fig. 1 is the schematic diagram with the intelligent kernel system of observing and controlling and central computer function described in embodiment one;
Fig. 2 is the schematic diagram of the radio-frequency channel module 1 described in embodiment three;
Fig. 3 is the schematic diagram for Power entry module 4 described in embodiment five.
Embodiment
Embodiment one, composition graphs 1 illustrate this embodiment, the intelligent kernel system with observing and controlling and central computer function described in this embodiment comprises two data transmission processing systems, interface module 3 and supplies Power entry module 4, each data transmission processing system comprises radio-frequency channel module 1 and data management module 2
Described radio-frequency channel module 1 for received RF signal, and carries out process generation base-band data stream to the radiofrequency signal received, and realizes the conversion between radiofrequency signal and base band data,
Data management module 2 for according to radiofrequency signal remote-control romote-sensing terminal and computer,
Radio-frequency channel module 1 and data management module 2 realize data interaction by interface module 3,
Be used for sending to radio-frequency channel module 1 and data management module 2 powering up instruction or cut-offing instruction for Power entry module.
In present embodiment, radio-frequency channel module 1 system can be USB system, can be also spread spectrum system, only needs to meet the flexible replacement that internal system interface can realize different observing and controlling standard system.
The difference with the intelligent kernel system of observing and controlling and central computer function described in embodiment two, this embodiment and embodiment one is, described radio-frequency channel module 1 and data management module 2 all adopt board form to realize.
In present embodiment, radio-frequency channel module 1 and data management module 2 are all designed to board form, and interface is the pcm interface of standard.
Embodiment three, composition graphs 2 illustrate this embodiment, this embodiment is with the difference with the intelligent kernel system of observing and controlling and central computer function described in embodiment two, described radio-frequency channel module 1 comprises radio-frequency (RF) receiving and transmission module and baseband signal processing module
Described radio-frequency (RF) receiving and transmission module comprises data feedback channel module 1-1, local oscillator transceiver module and down going channel module 1-2,
Data feedback channel module 1-1 is used for the radiofrequency signal that satellite receiver sends, and is sent to baseband signal processing module after this radiofrequency signal is carried out down-converted,
Local oscillator transceiver module for generation of clock signal, described clock signal as the reference signal of radio-frequency channel module 1,
Down going channel module 1-2 is used for the spread-spectrum signal that receiving baseband signal processing module sends, and is sent to data management module 2 by interface module 3 after this spread-spectrum signal is carried out upconversion process,
Described baseband signal processing module comprises remote signal transceiver module 1-3, distance measuring signal transceiver module 1-4 and telemetered signal transceiver module 1-5,
Remote signal transceiver module 1-3, for receiving the remote control intermediate-freuqncy signal in data feedback channel module 1-1, carries out process to this remote control intermediate-freuqncy signal and generates PCM signal and be sent to data management module 2 by interface module 3,
Distance measuring signal transceiver module 1-4 for catching and following the tracks of the ranging frame of modulating in data feedback channel module 1-1, and is sent to telemetered signal receiver module after carrying out band spectrum modulation to this ranging frame,
The downlink telemetry data message that telemetered signal transceiver module 1-5 sends for receiving CAN, and the modulated spread spectrum signal of the ranging frame sent with distance measuring signal transceiver module 1-4 after carrying out spread processing to this downlink telemetry data message superposes, the modulated spread spectrum signal after superposition is sent to radio-frequency (RF) receiving and transmission module and carries out BPSK modulation.
The difference with the intelligent kernel system of observing and controlling and central computer function described in embodiment four, this embodiment and embodiment three is, described data management module 2 comprises to instruction decode module, deciphering module and computer module,
Instruction decode module is used for carrying out synchronously to command frame from base-band data stream, decoding carried out to instruction simultaneously and generate direct instruction after driving, this instruction is sent to actuator, and the direct instruction of generation is synchronous after data be sent to deciphering module and computer module
Deciphering module is for receiving up bright state data, and up bright state data transparency is forwarded to computer module, also for receiving up close state data, and be sent to computer module by after up close state decrypt data, instruction effective marker is sent to instruction decode module simultaneously
Computer module refers to for receiving remote control and generates telemetry parameter, and the telemetry parameter of generation is sent to radio-frequency channel module 1 by interface module 3.
In present embodiment, computer module is remote measurement, the core of remote control and data management, receive remote control command and perform, generate telemetry parameter, radio-frequency channel module 1 is sent to by interface module, complete the Star Service management function of central computer simultaneously, and by interface module acquisition system inside telemetry parameter and inside is controlled, data management module 2 incorporates the function of detection and control terminal and central computer, substantially increase the functional density of system, the remote control PCM signal that interface module and confession Power entry module export and gate-control signal, and the checking of digital signature is carried out to remote control command or injecting data is decrypted and signature verification, remote control PCM signal after deciphering is sent to instruction decode module or computer module simultaneously, carry out Instruction decoding by instruction decode module and send actuator, or give actuator by bus after carrying out decoding by computer module or perform in internal system, data management module 2 also generates telemetry, modulate emission after interface module is sent to by the pcm interface of standard.
Embodiment five, composition graphs 3 illustrate this embodiment; this embodiment is with the difference with the intelligent kernel system of observing and controlling and central computer function described in embodiment four; the described Power entry module 4 that supplies comprises two-way for busway and an arbitration modules 4-6; described two-way comprises protection module 4-1 for busway, radio frequency supplies Power entry module 4-4 and arbitration for Power entry module 4-5 for Power entry module 4-2, Instruction decoding for Power entry module 4-3, deciphering
Protection module 4-1 connects outside uncontrollable power supply, radio frequency supplies Power entry module 4-4 and arbitration for Power entry module 4-5 for Power entry module 4-2, Instruction decoding for Power entry module 4-3, deciphering, for preventing different module short circuits,
Radio frequency is used for powering to radio-frequency channel module 1 for Power entry module 4-2,
Instruction decoding is used for powering to instruction decode module for Power entry module 4-3,
Deciphering is used for powering to deciphering module for Power entry module 4-4,
Arbitration is connected with arbitration modules 4-6 for Power entry module 4-5,
Arbitration modules 4-6 and computer module realize data interaction by interface module 3.
In present embodiment; separating component is adopted to build for Power entry module 4; there is higher reliability; directly provide two-way uncontrollable 28V power supply for Power entry module 4 by PCDU; containing fuse box anti-surge circuit in protection module 4-1; after protection module 4-1, being sent to radio frequency again to 28V power supply supplies Power entry module 4-4 and arbitration for Power entry module 4-5 for Power entry module 4-2, Instruction decoding for Power entry module 4-3, deciphering; thus realize powering to modules, the signal simultaneously also preventing different module short circuits from affecting whole system exports.
Radio frequency comprises a uncontrollable power supply in road for Power entry module 4-2, coming powers up/cut-offing instruction and riches all the way penetrates machine and power up/cut-offing instruction from the receiver of instruction decode module, if radio-frequency channel module 4-2 is spread spectrum answering machine, then power up instruction and cut-offing instruction is effective; If radio-frequency channel module 4-2 is USB answering machine, then power up instruction and cut-offing instruction is connected to ignore on answering machine board, instruction ignore.
Instruction decoding is input as uncontrollable power supply for Power entry module 4-3's, often powers up, no longer carry out power-off after satellite powers up.
Deciphering is input as uncontrollable power supply for Power entry module 4-4's, is undertaken adding power-off and controls, control by instruction or timer expiry by its inside.
The difference with the intelligent kernel system of observing and controlling and central computer function described in embodiment six, this embodiment and embodiment five is, described arbitration modules 4-6 comprises and powers up module, power-off modular and independently cut machine module,
Power up module for powering up according to instruction computer for controlling module,
Power-off modular is used for the power-off according to instruction computer for controlling module,
Independently cut machine module for cutting machine state and house dog state acquisition two-shipper output enable control signal according to remote control, and then remote control switching is carried out to two computer modules.
In present embodiment, remote control command is: computer A powers up, computer A power-off, computer B power up, computer B power-off, A machine is cut in remote control and B machine is cut in remote control, and realize independently cutting machine enable and independently cut machine prohibiting function, instruction type is OC form.
The difference with the intelligent kernel system of observing and controlling and central computer function described in embodiment seven, this embodiment and embodiment six is, described interface module 3 comprises remote-control data transceiver module and telemetry transceiver module,
The remote-control data signal that remote-control data transceiver module is used for radio-frequency channel module 1 to send is sent to data management module 2,
The telemetry signal that telemetry transceiver module is used for data management module 2 to send is sent to radio-frequency channel module 1.
The difference with the intelligent kernel system of observing and controlling and central computer function described in embodiment eight, this embodiment and embodiment seven is, described interface module 3 also for receiving the telemetry signal that answering machine sends, and by described telemetry signal transparent forwarding to data management module 2.
Claims (8)
1. there is the intelligent kernel system of observing and controlling and central computer function, it is characterized in that, it comprises two data transmission processing systems, interface module (3) and supplies Power entry module (4), each data transmission processing system comprises radio-frequency channel module (1) and data management module (2)
Process generation base-band data stream for received RF signal, and is carried out to the radiofrequency signal received in described radio-frequency channel module (1), realizes the conversion between radiofrequency signal and base band data,
Data management module (2) for according to radiofrequency signal remote-control romote-sensing terminal and computer,
Radio-frequency channel module (1) and data management module (2) realize data interaction by interface module (3),
Be used for sending to radio-frequency channel module (1) and data management module (2) powering up instruction or cut-offing instruction for Power entry module.
2. the intelligent kernel system with observing and controlling and central computer function according to claim 1, is characterized in that, described radio-frequency channel module (1) and data management module (2) all adopt board form to realize.
3. the intelligent kernel system with observing and controlling and central computer function according to claim 2, is characterized in that, described radio-frequency channel module (1) comprises radio-frequency (RF) receiving and transmission module and baseband signal processing module,
Described radio-frequency (RF) receiving and transmission module comprises data feedback channel module (1-1), local oscillator transceiver module and down going channel module (1-2),
The radiofrequency signal that data feedback channel module (1-1) sends for satellite receiver, and be sent to baseband signal processing module after this radiofrequency signal is carried out down-converted,
Local oscillator transceiver module for generation of clock signal, described clock signal as the reference signal of radio-frequency channel module (1),
The spread-spectrum signal that down going channel module (1-2) sends for receiving baseband signal processing module, and be sent to data management module (2) by interface module (3) after this spread-spectrum signal is carried out upconversion process,
Described baseband signal processing module comprises remote signal transceiver module (1-3), distance measuring signal transceiver module (1-4) and telemetered signal transceiver module (1-5),
Remote signal transceiver module (1-3) is for receiving the remote control intermediate-freuqncy signal in data feedback channel module (1-1), carry out process to this remote control intermediate-freuqncy signal generate PCM signal and be sent to data management module (2) by interface module (3)
Distance measuring signal transceiver module (1-4) for catching and following the tracks of the middle ranging frame of modulating of data feedback channel module (1-1), and is sent to telemetered signal receiver module after carrying out band spectrum modulation to this ranging frame,
The downlink telemetry data message that telemetered signal transceiver module (1-5) sends for receiving CAN, and the modulated spread spectrum signal of the ranging frame sent with distance measuring signal transceiver module (1-4) after carrying out spread processing to this downlink telemetry data message superposes, the modulated spread spectrum signal after superposition is sent to radio-frequency (RF) receiving and transmission module and carries out BPSK modulation.
4. the intelligent kernel system with observing and controlling and central computer function according to claim 3, is characterized in that, described data management module (2) comprises to instruction decode module, deciphering module and computer module,
Instruction decode module is used for carrying out synchronously to command frame from base-band data stream, decoding carried out to instruction simultaneously and generate direct instruction after driving, this instruction is sent to actuator, and the direct instruction of generation is synchronous after data be sent to deciphering module and computer module
Deciphering module is for receiving up bright state data, and up bright state data transparency is forwarded to computer module, also for receiving up close state data, and be sent to computer module by after up close state decrypt data, instruction effective marker is sent to instruction decode module simultaneously
Computer module refers to for receiving remote control and generates telemetry parameter, and the telemetry parameter generated is sent to radio-frequency channel module (1) by interface module (3).
5. the intelligent kernel system with observing and controlling and central computer function according to claim 4; it is characterized in that; the described Power entry module (4) that supplies comprises two-way for busway and an arbitration modules (4-6); described two-way comprises protection module (4-1) for busway, radio frequency supplies Power entry module (4-4) and arbitration for Power entry module (4-5) for Power entry module (4-2), Instruction decoding for Power entry module (4-3), deciphering
Protection module (4-1) connects outside uncontrollable power supply, radio frequency supplies Power entry module (4-4) and arbitration for Power entry module (4-5) for Power entry module (4-2), Instruction decoding for Power entry module (4-3), deciphering; for preventing different module short circuits
Radio frequency supplies Power entry module (4-2) for powering to radio-frequency channel module (1),
Instruction decoding supplies Power entry module (4-3) for powering to instruction decode module,
Deciphering supplies Power entry module (4-4) for powering to deciphering module,
Arbitration is connected with arbitration modules (4-6) for Power entry module (4-5),
Arbitration modules (4-6) realizes data interaction with computer module by interface module (3).
6. the intelligent kernel system with observing and controlling and central computer function according to claim 5, is characterized in that, described arbitration modules (4-6) comprises and powers up module, power-off modular and independently cut machine module,
Power up module for powering up according to remote control command computer for controlling module,
Power-off modular is used for the power-off according to remote control command computer for controlling module,
Independently cut machine module for cutting machine state and house dog state acquisition two-shipper output enable control signal according to remote control, and then remote control switching is carried out to two computer modules.
7. the intelligent kernel system with observing and controlling and central computer function according to claim 6, is characterized in that, described interface module (3) comprises remote-control data transceiver module and telemetry transceiver module,
Remote-control data transceiver module is used for the remote-control data signal that radio-frequency channel module (1) sends to be sent to data management module (2),
Telemetry transceiver module is used for the telemetry signal that data management module (2) sends to be sent to radio-frequency channel module (1).
8. the intelligent kernel system with observing and controlling and central computer function according to claim 7, it is characterized in that, described interface module (3) also for receiving the telemetry signal that answering machine sends, and by described telemetry signal transparent forwarding to data management module (2).
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Cited By (1)
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| CN106712833A (en) * | 2016-12-14 | 2017-05-24 | 中国运载火箭技术研究院 | Aircraft integrated information processing subsystem and spaceflight measurement and control system |
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Application publication date: 20150325 |