CN202713318U - Telemetry and telecontrol single-inspection test device - Google Patents
Telemetry and telecontrol single-inspection test device Download PDFInfo
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- CN202713318U CN202713318U CN2011204968920U CN201120496892U CN202713318U CN 202713318 U CN202713318 U CN 202713318U CN 2011204968920 U CN2011204968920 U CN 2011204968920U CN 201120496892 U CN201120496892 U CN 201120496892U CN 202713318 U CN202713318 U CN 202713318U
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Abstract
A telemetry and telecontrol single-inspection test device comprises a telecontrol module and a telemetry module, wherein the telecontrol module includes a telecontrol PSK signal demodulator and a telecontrol FPGA, and the telemetry module includes a telemetry PSK signal modulator and a telemetry FPGA. The telemetry and telecontrol single-inspection test device of the utility model can simply simulate the satellite telemetry and telecontrol equipment, and the single-inspection test equipment is connected with a ground test system; through demodulating uplink telecontrol signals transmitted by the ground test system and transmitting simulation telemetry downlink signals for the demodulation of the ground test system, correctness of the telemetry and telecontrol ground test system as well as uplink and downlink channels can be verified. The telemetry and telecontrol single-inspection test device of the utility model is advantageous in high reliability and great generality in use, and is applicable to joint debugging and self checking of the telemetry and telecontrol ground test system before each stage test of a communications satellite, and is also applicable to research and development of telemetry and telecontrol ground test equipment.
Description
Technical field
The utility model relates to a kind of satellite instrumentation.
Background technology
In the communication satellite AlT stage, each model remote measuring and controlling ground checkout equipment forms with integrated basic identical, but lacks unified system verification means, each model tester to ground device authentication means without unified standard.Existing verification method is to use oscilloscope to observe the requirement whether remote control subcarrier index that ground testing system modulates satisfies on-board equipment, uses simulation signal generator to modulate subcarrier signal and observes ground testing system and whether can successfully demodulate information in the simulation signal generator.This verification method workload is larger, and can't guarantee that the result has higher correctness owing to lack true star verification environment.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, single examination equipment that detects that a kind of reliability is high, versatility is good is provided, can simulate on the star remote measuring and controlling equipment and identical over the ground interface is provided, be applicable in the uniting and adjustment and process of self-test of each stage remote measuring and controlling ground installation of whole star, also be applicable to simultaneously in the debugging and burn-in work that remote measuring and controlling newly grinds ground checkout equipment.
Technical solution of the present utility model is: a kind of remote measuring and controlling list detects examination equipment, comprises remote control module and telemetry module, and remote control module comprises remote control psk signal demodulator and remote control FPGA, and telemetry module comprises remote measurement psk signal modulator and remote measurement FPGA; Remote control FPGA receives the remote-controlled test command signal and also delivers to remote control psk signal demodulator, and remote control psk signal demodulator carries out demodulation to signal and with earthward test macro output of demodulation result; Remote measurement FPGA reads remote measurement dummy source data, and remote measurement dummy source data are encoded and coding result is delivered to remote measurement psk signal modulator, and remote measurement psk signal modulator is modulated signal and with earthward test macro output of modulation result.
The utility model advantage compared with prior art is:
1, whether existing remote control verification method is normal by oscilloscope observation remote signal, can't the data after the remote signal demodulation be checked.The utility model is by remote control equipment on the psk signal demodulator in the remote control module and the FPGA simulation star, and provide Remote Control Interface on the true star, for the checking of ground testing system provides the verification environment higher with satellite remote control unit affinity degree, remote signal is carried out demodulation and remote control command code is compared by single inspection equipment, check whether remote control system error code occurs in the modulating subcarrier process, improved integrality and accuracy that remote-control channel checks;
2, existing remote measurement verification method is directly delivered to telemetered signal the CORTEX demodulation module by dummy source, and this signal index is immutable, and the telemetered signal difference that passes up and down with true star is larger, can't verify the demodulation ability to true telemetered signal.The utility model is by remote-measuring equipment on the psk signal modulator in the telemetry module and the FPGA simulation star, and provide telemetry interface on the true star, for the checking of ground testing system provides the verification environment high with satellite telemetry unit affinity degree, single inspection equipment is modulated and is sent telemetered signal, the telemetry of ground demodulation and remote measurement dummy source data are compared and show comparison result, improved integrality and accuracy that remote-control channel checks;
3, existing verification method need to be formulated different verification step and operation according to the ground checkout equipment of different model satellite, and versatility is relatively poor.The utility model support arranges single index that detects examination equipment according to different model satellite index, is applicable to the checking of different model communication satellite remote measuring and controlling ground testing system;
4, existing checking means are because versatility is relatively poor, and common holiday Verification Project when formulating verification method causes part index number to fail to verify in the uniting and adjustment process of self-test.The utility model is by analyzing remote measuring and controlling signal and every data target, as do not meet index request namely report an error the prompting tester, single examination equipment that detects has improved efficient and the automaticity verified, error and the omission of having avoided hand inspection to bring greatly;
5, existing verification method is verified ground testing system by equipment such as oscilloscope, signal generators, uses the ability of measuring instrument that certain requirement is arranged to the tester.The utility model can the simple realization system verification, has reduced the requirement to the tester, and reduced workload in proof procedure;
6, the remote measuring and controlling list detects examination equipment owing to the simulation that has realized remote measuring and controlling equipment on the star, therefore also is applicable in the development and burn-in work of remote measuring and controlling ground testing system new equipment, newly grinds equipment in the past and can't carry out burn-in under true star environment.Remote measuring and controlling newly grinds ground checkout equipment can be by single its function of examination device authentication that detects, before the test of broadcasting TV programs by satellite, also can connect simultaneously single examination equipment that detects and carry out long-time burn-in, verify its stability, as pinpoint the problems and to carry out time update, thereby avoided newly grinding the harm that ground checkout equipment may cause on-board equipment.
Description of drawings
Fig. 1 is remote measuring and controlling ground testing system structure chart;
Fig. 2 is remote measuring and controlling ground testing system signal flow graph;
Fig. 3 is the utility model theory of constitution figure;
Fig. 4 is the inner telemetry module FPGA of the utility model workflow diagram;
Fig. 5 is the inner remote control module FPGA of the utility model workflow diagram;
Fig. 6 is that the utility model is to telemetered signal modulation principle figure;
Fig. 7 is that the utility model is to remote signal demodulation principle figure.
Embodiment
As shown in Figure 1, the equipment of composition remote measuring and controlling ground testing system comprises remote control front-end computer (including the remote control command card), telemetry front end computer, the network switch, synthetical baseband equipment, waveform monitor, remote detection video channel unit, televideo channel unit and the long lane controller of remote control.Operation has telemetry front end software on the telemetry front end computer, and operation has the remote control front-end software on the remote control front-end computer.The function introduction of each stand-alone device is as follows:
1) remote detection video channel unit: finish coupling isolation and transfer ratio control to descending telemetered signal, the telemetered signal after output is processed simultaneously send oscilloscope to monitor;
2) televideo channel unit: finish coupling isolation and transfer ratio control to up remote signal, the remote signal after output is processed simultaneously send oscilloscope to monitor;
3) the long lane controller of remote control: finish the control of the passage of upward signal, be input as 1 tunnel remote signal and 1 tunnel control signal, 2 tunnel remote signals of output are carried out break-make control, output state signal has 3 kinds, is respectively 1 logical 2 disconnected, 1 disconnected 2 logical and 1 disconnected 2 disconnected;
4) synthetical baseband equipment (CORTEX): finish the modulation of up remote signal and the demodulation of descending telemetered signal;
5) remote control command card: for the remote control front-end software provides the code word of remote control command, be installed on the remote control front-end computer;
6) oscilloscope: show the waveform of remote measurement, remote signal, observe for the tester;
7) network switch: for internal system provides network communication services;
8) remote control front-end computer: the remote control front-end software is installed, is sent director data by network to synthetical baseband equipment, and compare return information and compare and checking, by network and single examination devices communicating that detects, access the instruction code word and compare;
9) telemetry front end computer: telemetry front end software is installed, obtaining telemetry after the demodulation by network from synthetical baseband equipment resolves and main piece of data is sent to master control, by network and single examination devices communicating that detects, the telemetry that solves is compared.
As shown in Figure 2, remote measuring and controlling list detection examination equipment checks forming the test macro equipment that remote control is up and remote measurement is descending respectively.
The remote control front-end computer extracts code word in the remote control command card by network and delivers to synthetical baseband equipment, synthetical baseband equipment is modulated into psk signal with it and delivers to the televideo channel unit, the televideo channel unit adapts to the receiving ability of remote control equipment on the star to its amplitude adjustment, realize simultaneously the star ground isolation of signal by the digitlization means, signal is delivered to any 1 passage that can select to give satellite PSK1 passage and PSK2 passage behind the long lane controller of remote control, and the remote measuring and controlling list detects examination device interior remote control module can realize inspection to any 1 passage remote signal in these 2 passages.
Remote measuring and controlling list detection examination equipment modulates 1 tunnel or 2 tunnel remote measurement psk signals and delivers to remote detection video channel unit input, the remote detection video channel unit is realized the isolation of star ground by the digitlization means, deliver to synthetical baseband equipment after its amplitude adjustment being adapted to the receiving ability of synthetical baseband equipment, synthetical baseband equipment carries out demodulation and the data communication device after the demodulation is crossed network being sent to the telemetry front end computer to the remote measurement psk signal, telemetry front end software to telemetry lock with synchronously after according to telemetry format with its parsing and will lead a part telemetry and deliver to master control.
As shown in Figure 3, the remote measuring and controlling list detects the examination device interior and is divided into two modules, is respectively remote control module and telemetry module.The remote measuring and controlling ground testing system has 2 telemetry interfaces and 2 Remote Control Interfaces with single examination equipment that detects, 2 input interfaces of remote detection video channel unit are connected with single telemetry module that detects examination equipment by 2 BNC coaxial cables, and 2 output interfaces of the long lane controller of remote control are connected with single remote control module that detects examination equipment by 2 BNC coaxial cables.
Remote control module inside comprises remote control psk signal demodulator and FPGA.Telemetry module inside comprises remote measurement psk signal modulator and FPGA.Telemetry module is mainly finished sub-carrier modulation, telemetry comparison function, supports different subcarrier frequencies, amplitude, pattern, bit rate, frame alignment word, the isoparametric modulation output of every frame byte number.2 stand-alone interfaces externally are provided, can single channel output also can export simultaneously, interface output impedance and satellite telemetry equipment over the ground output impedance are consistent.Remote control module is mainly finished the subcarrier demodulation, and the director data comparison function is supported different frequency, amplitude, pattern, bit rate, isoparametric subcarrier are carried out demodulation.2 stand-alone interfaces externally are provided, support any 1 tunnel remote signal input, interface input impedance and satellite remote control equipment over the ground input impedance are consistent.
Fig. 4 is telemetry module FPGA workflow diagram.Telemetry module FPGA is after carrying out power-up initializing, check whether be connected with single examination software that detects, when detecting successful connection, reading remote measurement dummy source data also is latched into these data in the register, when remote measurement dummy source data format is correct, reads remote measurement analog signal index and be latched into the register from general switching software, remote measurement dummy source data are encoded and coding result is delivered to remote measurement psk signal modulator, and remote measurement psk signal modulator is with earthward test macro output of modulation result; When remote measurement dummy source data format is incorrect, empties register data and return initial condition.
Fig. 5 is remote control module FPGA workflow diagram.Remote control module FPGA is after carrying out power-up initializing, check whether be connected with single examination software that detects, when detecting successful connection, telecontrol analog signal index in the reading software software kit is latched in the register, obtain simultaneously up remote control signal data, if signal satisfies the index request of storing in the register then the telecommand data that receives is delivered to remote control psk signal demodulator separate mediation decoding, if the discontented toe mark of data requires then empties register data, return initial condition.
As shown in Figure 6, the modulation of remote measurement psk signal, at first produce parallel data by data producer, be converted into serial data stream with parallel/serial transducer again, be converted to the serial data stream of various patterns through the pattern transducer, go to change again the phase place of sine-wave generator with the code element in the serial data stream, bit rate clock is produced by the code check generator, code element is that phase place was set in 0 o'clock is 0 degree, and code element is that phase place to be set at 1 o'clock be 180 degree.
1) data producer: write the PCM data according to IRIG frame format standard, deliver to the appointment register.
2) parallel/serial transducer: parallel data is exported with the code check serial that arranges with bit rate clock.
3) pattern transducer: according to IRIG pattern standard, serial data stream is converted to the PCM signal of various patterns.
4) PSK modulator: the PSK modulator is finished the work of subcarrier being modulated with data.
5) subcarrier generator: be used for producing subcarrier signal for Data Modulation.
6) interrupt generator: the modulation of first code element of every frame data is strictly interrupted constantly aliging with telemetry frame constantly, otherwise does not start Corticofugal Modulation of Somatosensory.
As shown in Figure 7, coherent demodulation is carried out in the demodulation of remote control psk signal at first to received signal, then go to offset the data that receive in the signal with demodulation data out, the reinserted subcarrier single-frequency components, this subcarrier component is extracted by phase-locked loop, for the usefulness of coherent demodulation.Subcarrier NCO produces the signal of pair of orthogonal and the signal of input carries out mixing, obtain sending into integration/removing filter after the baseband signal, finish matched filtering, the phase error that extracts is sent into loop filter, subcarrier NCO is adjusted in output with loop filter, realizes the synchronous tracking of subcarrier.
The utility model was divided into for 4 steps to the checking of ground checkout equipment:
1) the remote measuring and controlling ground checkout equipment is undertaken integrated by test mode, and detect examination equipment with the remote measuring and controlling list and be connected, annexation as shown in Figure 1;
2) be set to test mode after ground installation is powered up, according to the standard of authentic testing each ground testing software be configured.The single detection tries to network with software kit after the device power-on, and the reception index of satellite remote control vision signal and single detection of transmission index input of remote detection video signal are tried coordinative composition of equipments software, and realization is to the simulation of remote measurement on the star, remote control equipment;
3) single examination equipment that detects will transmit telemetered signal according to the telemetered signal mark sense ground of input, and wherein the telemetry of dummy source should comprise frame alignment word, the frame count of rule, and all the other bytes are the filling word.Whether observe telemetry front end software and resolve correctly, single inspection coordinative composition of equipments software is compared analysis result and dummy source data, proves unanimously that such as comparison result down going channel is normal;
4) send remote control command by the ground remote control system, whether single detection examination coordinative composition of equipments software remote control module return data is normal after observing the instruction transmission, examination equipment display is normal, director data and instruction card comparison result is consistent as singly detecting, proof remote control data feedback channel is normal, and the remote measuring and controlling list detects examination equipment ground checkout equipment is verified.
The content that is not described in detail in the utility model specification belongs to those skilled in the art's known technology.
Claims (1)
1. a remote measuring and controlling list detects examination equipment, and it is characterized in that comprising: remote control module and telemetry module, remote control module comprise remote control psk signal demodulator and remote control FPGA, and telemetry module comprises remote measurement psk signal modulator and remote measurement FPGA; Remote control FPGA receives the remote-controlled test command signal and also delivers to remote control psk signal demodulator, and remote control psk signal demodulator carries out demodulation to signal and with earthward test macro output of demodulation result; Remote measurement FPGA reads remote measurement dummy source data, and remote measurement dummy source data are encoded and coding result is delivered to remote measurement psk signal modulator, and remote measurement psk signal modulator is modulated signal and with earthward test macro output of modulation result.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204968920U CN202713318U (en) | 2011-12-01 | 2011-12-01 | Telemetry and telecontrol single-inspection test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011204968920U CN202713318U (en) | 2011-12-01 | 2011-12-01 | Telemetry and telecontrol single-inspection test device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236889A (en) * | 2013-04-12 | 2013-08-07 | 北京空间飞行器总体设计部 | Testing method of remote control priority in spacecraft |
| CN103412808A (en) * | 2013-08-15 | 2013-11-27 | 航天东方红卫星有限公司 | Satellite task subsystem testing equipment based on field programmable gate array (FPGA) architecture |
| CN104331035A (en) * | 2014-09-30 | 2015-02-04 | 航天东方红卫星有限公司 | Mini-satellite test remote measurement and remote control monitoring system based on service-oriented architecture and method thereof |
| CN105512030A (en) * | 2015-11-30 | 2016-04-20 | 中国空间技术研究院 | Satellite test efficiency improving method based on satellite order code word intelligent construction |
| CN106850046A (en) * | 2017-01-13 | 2017-06-13 | 王洋 | A kind of spaceborne remote-control romote-sensing terminal, system and method based on FPGA |
| CN107888275A (en) * | 2017-11-06 | 2018-04-06 | 上海航天测控通信研究所 | The general base band data simulation source of satellite data transmission subsystem |
| CN105929709B (en) * | 2016-04-13 | 2018-12-11 | 中国卫星海上测控部 | Polytypic telemetry of launch vehicle data simulation system |
| CN114189272A (en) * | 2021-11-18 | 2022-03-15 | 北京微纳星空科技有限公司 | Comprehensive test system of microsatellite |
| CN115996095A (en) * | 2023-03-22 | 2023-04-21 | 天津讯联科技有限公司 | Automatic telemetry transmitter testing device and testing method thereof |
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- 2011-12-01 CN CN2011204968920U patent/CN202713318U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103236889A (en) * | 2013-04-12 | 2013-08-07 | 北京空间飞行器总体设计部 | Testing method of remote control priority in spacecraft |
| CN103412808A (en) * | 2013-08-15 | 2013-11-27 | 航天东方红卫星有限公司 | Satellite task subsystem testing equipment based on field programmable gate array (FPGA) architecture |
| CN103412808B (en) * | 2013-08-15 | 2017-03-01 | 航天东方红卫星有限公司 | A kind of Star Service subsystem test equipment based on FPGA framework |
| CN104331035A (en) * | 2014-09-30 | 2015-02-04 | 航天东方红卫星有限公司 | Mini-satellite test remote measurement and remote control monitoring system based on service-oriented architecture and method thereof |
| CN104331035B (en) * | 2014-09-30 | 2017-05-10 | 航天东方红卫星有限公司 | Mini-satellite test remote measurement and remote control monitoring system based on service-oriented architecture and method thereof |
| CN105512030B (en) * | 2015-11-30 | 2017-12-22 | 中国空间技术研究院 | A kind of method that lifting satellite test efficiency is intelligently constructed based on satellite command code word |
| CN105512030A (en) * | 2015-11-30 | 2016-04-20 | 中国空间技术研究院 | Satellite test efficiency improving method based on satellite order code word intelligent construction |
| CN105929709B (en) * | 2016-04-13 | 2018-12-11 | 中国卫星海上测控部 | Polytypic telemetry of launch vehicle data simulation system |
| CN106850046A (en) * | 2017-01-13 | 2017-06-13 | 王洋 | A kind of spaceborne remote-control romote-sensing terminal, system and method based on FPGA |
| CN107888275A (en) * | 2017-11-06 | 2018-04-06 | 上海航天测控通信研究所 | The general base band data simulation source of satellite data transmission subsystem |
| CN114189272A (en) * | 2021-11-18 | 2022-03-15 | 北京微纳星空科技有限公司 | Comprehensive test system of microsatellite |
| CN114189272B (en) * | 2021-11-18 | 2024-01-16 | 北京微纳星空科技有限公司 | Comprehensive test system of microsatellite |
| CN115996095A (en) * | 2023-03-22 | 2023-04-21 | 天津讯联科技有限公司 | Automatic telemetry transmitter testing device and testing method thereof |
| CN115996095B (en) * | 2023-03-22 | 2023-06-27 | 天津讯联科技有限公司 | Automatic telemetry transmitter testing device and testing method thereof |
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