CN113885368B - Integrated test shelter for pico-nano satellite - Google Patents
Integrated test shelter for pico-nano satellite Download PDFInfo
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- CN113885368B CN113885368B CN202110987523.XA CN202110987523A CN113885368B CN 113885368 B CN113885368 B CN 113885368B CN 202110987523 A CN202110987523 A CN 202110987523A CN 113885368 B CN113885368 B CN 113885368B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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Abstract
The invention relates to an integrated test shelter for a pico-nano satellite, wherein a solar array simulator is adopted by a power module to simulate an on-satellite solar cell array to supply power for the whole satellite, and a test design server controls the output of the solar array simulator; the power supply and distribution module is arranged in the PXI chassis in an analog quantity acquisition board card mode, measures satellite parameters in a wired mode, monitors states, and transmits measurement results to the test design server for storage; the measurement and control module is arranged in the PXI case in a board card mode and comprises an up-down frequency conversion board card and a modulation and demodulation board card which are controlled by a test design server; the test design server is used for storing hardware drivers in the shelter and sending instructions according to test requirements to control and complete the test of the pico-satellite.
Description
Technical Field
The invention relates to an integrated test shelter design for a pico-nano satellite.
Background
The small satellite test is taken as an important link in the whole development process of the small satellite, and has great influence on the development period, the development cost and the development efficiency of the satellite. Although the current testing system can meet the current satellite testing requirements, the requirements of various types, high output and short period of the pico-nano satellite are difficult to meet due to the restriction of the self testing technology, and the pico-nano satellite testing tends to be developed towards flexible construction and rapid testing along with the development requirements of the pico-nano satellite, so that a new testing technology is required to support a new testing system.
Disclosure of Invention
The technical solution of the invention is as follows: the integrated test shelter design for the pico-satellite is provided, integrates ground power supply and distribution, power supply, measurement and control and total control test systems into a whole, adopts a portable mobile locomotive box frame with small size, is provided with a universal and standard external interface, has an automatic test function, can match the requirements of power supply and distribution, power supply, measurement and control and total control test of all types of pico-satellite, can realize efficient and rapid system construction, and greatly improves the satellite test efficiency.
The technical scheme of the invention is as follows: an integrated test shelter facing a pico-nano satellite comprises a power module, a power supply and distribution module, a measurement and control module, a PXI chassis, an integrated chassis and a test design server;
the power module adopts a solar array simulator to simulate an on-satellite solar cell array to supply power for the whole satellite, and the test design server controls the output of the solar array simulator;
the power supply and distribution module is arranged in the PXI chassis in an analog quantity acquisition board card mode, measures satellite parameters in a wired mode, monitors states, and transmits measurement results to the test design server for storage;
the measurement and control module is arranged in the PXI case in a board card mode and comprises an up-down frequency conversion board card and a modulation and demodulation board card which are controlled by a test design server;
the test design server is used for storing hardware drivers in the shelter and sending instructions according to test requirements to control and complete the test of the pico-satellite;
the PXI chassis is provided with a plurality of slot positions and is used for integrally installing a zero slot controller, a power supply and distribution module board card and a measurement and control module board card, wherein the zero slot controller realizes information interaction with other board cards in the PXI chassis through a PXI bus and performs information interaction with a test design server through a TCP/IP protocol;
the integrated chassis is used for installing and deploying a power module, a PXI chassis and a test design server.
Preferably, the test design server comprises a design center software package, a control center software package and a data center software package, wherein the design center software package comprises a basic database maintenance tool and a test design and flow planning module; the control center software package comprises a test execution module, an intelligent interpretation module, a remote control front-end module and a matrix simulator control module; the data center software package comprises a test database and a test analysis and evaluation module;
the basic database maintenance tool is used for recording satellite model instructions, parameters and criterion basic information;
the test design and flow planning module is used for constructing a test flow in a graphical dragging mode, and the flow information is stored as an electronic test rule in an XMAL form;
the test execution module is used for automatically executing the electronic test details, and in the execution process, before and after the instruction is sent, the intelligent interpretation module is used for completing the interpretation of the related parameters and sending corresponding prompt information by means of pre-defined criterion basic information;
the telemetry and remote control front-end module is responsible for receiving the remote control instruction sent by the test execution module and sending the received telemetry data to the test database;
the square matrix simulator control module receives the ground equipment operation instruction, simulates satellite power supply state output, and sends square matrix simulator operation record and state information to the test database;
the intelligent interpretation module completes intelligent interpretation of satellite and test equipment states in real time, and alarms once abnormality occurs;
the test analysis and evaluation module is used for automatically generating a test report according to the historical data stored in the test database and the interpretation rule of the test result in the test evaluation stage.
Preferably, the power module adopts an E4261A solar array simulator which is de-tech.
Preferably, the power supply and distribution module adopts a PXI-8516 data acquisition card to acquire important satellite analog quantity parameters.
Preferably, the modem function of the modem board supports a spread spectrum and USB telemetry and remote control system, the intermediate frequency center frequency is 66.0-74.0 MHz, the remote control code rate is 8 bps-8 kbps, the telemetry code rate is 1024 bps-64 kbps, the frame length is 128-1024 bytes, and the frame synchronization code group is 16-64 bits long; the up-conversion board card supports 70MHz of input frequency, 20MHz of bandwidth, 2.0-2.4 GHz of output frequency, 0dB-30dB of gain control range, and the down-conversion function supports 2.0-2.4 GHz of input frequency, 70MHz of output frequency, 20MHz of bandwidth and 0dB-20dB of gain control range.
Preferably, the measurement and control module adopts a PXI-3U modem board and an RC23-02-28 up-down conversion board.
Preferably, the PXI case adopts an NI PXIe10651 case, the slot controller adopts an embedded controller NI PXIe-8133 based on a PXIe bus, and information interaction with each board card of the PXI case is realized through a PXI bus interface.
Preferably, the integrated chassis adopts the frame case of pekinetin, adopts front and back chassis lid mounting means transportation, through switching panel and external interface connection, switching panel width 19 inches, high 2U, external interface is 7Y 2-50ZJ interfaces, 8N type interfaces, 3 net gapes, and the inside giga 24 mouthfuls of switches that are equipped with of chassis, width 19 inches, high 1U,1 KVM, width 19 inches, high 1U, 18 jack power distribution unit PDU, width 19 inches, high 1U.
Preferably, the test design server adopts a delr R230 rack server, an E3-1270V5 processor, a dual network card and 2 USB3.0 ports.
Compared with the prior art, the invention has the beneficial effects that:
the integrated shelter test system for the pico-and-nano satellite can be quickly constructed and quickly upgraded, and has the characteristics of low cost, small volume, high integration level, good flexibility, strong maintainability, few types of internal interfaces and the like. The device can well meet the requirements of the pico-satellite on the characteristics of test equipment in the future.
Drawings
FIG. 1 is a schematic diagram of an integrated test Fang Cangzu for a pico-satellite according to the present invention;
FIG. 2 shows an integrated test shelter comprehensive test software system for a Pico-nano satellite according to the invention;
FIG. 3 is a flow chart of the integrated test shelter test design for the Pico-nano satellite.
FIG. 4 is a flow chart of an integrated test shelter test implementation for a pico-satellite according to the present invention.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 4 and the specific examples.
The invention provides an integrated test shelter design for a pico-nano satellite, which comprises a power module, a power supply and distribution module, a measurement and control module, a test design server, a PXI chassis and an integrated chassis;
the test design server adopts a delr R230 rack type server, an E3-1270V5 processor, a 64G memory, a double network card and 2 USB3.0 ports.
The integrated chassis adopts waterproof, shockproof, dustproof and anti-collision power frame box, width 19 inches (48.26 cm), height 12U (53.34 cm), depth 80cm for installing and deploying power module, PXI chassis, test design server, front and back chassis cover mounting mode transportation is adopted, through switching panel and external interface link, switching panel width 19 inches (48.26 cm), height 2U (8.89 cm), external interface is 7Y 2-50ZJ interfaces, 8N type interfaces, 3 net mouths, case inside is equipped with giga 24 mouths switch, width 19 inches (48.26 cm), height 1U (4.45 cm), 1 KVM, width 19 inches (48.26 cm), height 1U (4.45 cm), 18 jack (220V 16A) PDU, width 19 inches (48.26 cm), height 1U (4.45 cm).
Before the satellite is powered on, as shown in fig. 1, a test design server, a KVM (multiple computer display switcher), a PXI (PXI) chassis and a solar array simulator are installed to the integrated chassis, after the integrated chassis is put on the rack, front panel fixing screws are screwed down, corner rollers are braked, the chassis is guaranteed not to generate displacement, a fan at the top of the chassis is opened, ventilation in the chassis is guaranteed to be good, and all devices are connected to a comprehensive test network through a gigabit switch. The satellite power supply and the wired acquisition link are connected through the Y2-50 interface of the switching panel; and the satellite measurement and control communication link is connected through the N-type interface of the switching panel.
The test design server is used for installing and deploying the comprehensive test software system, and as shown in fig. 2, the test design server comprises a design center software package, a control center software package and a data center software package, wherein the design center software package comprises a basic database maintenance tool and test design and flow planning software (software, namely modules, the following is the same); the control center software package comprises test execution software, intelligent interpretation software, telemetry and remote control front-end software and matrix simulator control software; the data center software package comprises a test database and test analysis and assessment software. The comprehensive test software system is a core component of the whole test system and is a design center, a flow control center and a data center of the whole test. The method comprises the steps of designing a central software package, wherein the main tasks are to input satellite basic information, plan test projects and compile test rules; the control center software package is mainly used for testing and controlling, realizing automatic reading of electronic testing rules, sending remote control instructions and ground equipment operation instructions according to the sequence and the requirement of the rules, collecting, analyzing, calculating, storing and interpreting telemetry data, checking the health state of satellites, and collecting and storing ground equipment working information; the data center software package is mainly used for carrying out deeper data analysis and data mining on test data and automatically generating a test report and a test summary.
The power supply module adopts two E4261A solar array simulators which are De-tech, 4 channels are output, the maximum output power of each channel is 510W, the maximum output power of the system is 2400W, the requirements of the Pico-nano satellite test can be met, and the integrated test network is accessed through a TCP/IP protocol. The solar array simulator control software is installed and deployed on the test design server, in the test process, the test execution software sends ground equipment operation instructions to the solar array simulator control software, the solar array simulator control software reads parameter setting, working configuration and power-on sequence of satellite power supply, the solar array simulator is controlled to output according to requirements, the satellite is powered through an integrated chassis switching panel Y2-50 interface, and meanwhile output voltage and current parameters of the solar array simulator are transmitted to a test database for data storage analysis.
The power supply and distribution module adopts a PXI-8516 data acquisition card to acquire important analog quantity parameters of a satellite, and is provided with 16 paths of analog quantity input channels, the maximum range is-100V- +100V, the 16-bit resolution is digitally isolated from a measured object, the isolated voltage between the channels is more than 200V, and the channels are connected with the satellite through a star meter plug. After satellite power-up, satellite important analog parameters are connected to an Y2-50 interface of the integrated chassis switching panel through a cable-off and power supply and distribution cable in a wired mode and are transmitted to a power supply and distribution module to realize satellite state real-time monitoring, and meanwhile, received satellite test data are transmitted to a test database for data storage analysis.
The measurement and control module is arranged in the PXI chassis in a board card mode and comprises an up-down conversion board card and a modulation and demodulation board card, and the demodulation function can finish capturing, tracking and demodulation processing of two signals of a USB system and a spread spectrum system in a software switching mode, so that the function of receiving telemetry information of satellites in a downlink mode is finished. The modulation function completes the modulation processing of two signals of a USB system and a spread spectrum system through a software switching mode, and completes the function of transmitting satellite remote control instructions in the uplink. The down-conversion function is used for receiving the S-band radio frequency signals output by the transponder, and down-converting the S-band radio frequency signals into intermediate frequency signals. The up-conversion function is used for receiving the intermediate frequency signal output by the modulation module, and up-converting the intermediate frequency signal into an S-band radio frequency signal to be output. Specifically, a PXI-3U modulation and demodulation board card and an RC23-02-28 up-down conversion board card are adopted, and a modulation and demodulation function supports a spread spectrum and USB telemetry and remote control system. The modulation-demodulation function supports a spread spectrum and USB telemetry remote control system, the intermediate frequency center frequency is 66.0-74.0 MHz, the remote control code rate is 8 bps-8 kbps, the telemetry code rate is 1024 bps-64 kbps, the frame length is 128-1024 bytes, the frame synchronization code group length is 16-64 bits, the up-conversion function supports an input frequency of 70MHz, a bandwidth of 20MHz, an output frequency of 2.0-2.4 GHz, the gain control range is 0dB-30dB, the down-conversion function supports an input frequency of 2.0-2.4 GHz, the output frequency is 70MHz, the bandwidth of 20MHz and the gain control range is 0dB-20dB.
In the satellite test process, test execution software sends an instruction to power up a satellite, and a down-conversion board card receives an S-band radio frequency signal output by a satellite transponder and processes the S-band radio frequency signal into an intermediate frequency signal. The modulation-demodulation board receives the intermediate frequency signal sent by the down-conversion board card, and after the capturing, tracking and demodulation processing of the USB and spread spectrum system signal is completed, the intermediate frequency signal is transmitted to the telemetry and remote control front-end software, and then the telemetry and remote control front-end software is transmitted to the test database to complete the telemetry receiving and demodulation task of the whole satellite; the modulation and demodulation board card receives satellite remote control instructions sent by the remote sensing and remote control front end software, the modulation and demodulation board card completes modulation processing of USB system or spread spectrum system signals, intermediate frequency modulation signals are generated and output, and the up-conversion board card carries out up-conversion processing on intermediate frequency signals output by the modulation and demodulation board card, so that S-band radio frequency signals are obtained and output.
The system comprises a PXI case, an NI PXIe10651 case, a system throughput of 8GB/s, a slot throughput of 2GB/s, a zero slot controller for integrally installing the NI PXIe-8133, a PXI-8516 data acquisition card, a PXI-3U modem board card and an RC23-02-28 up-down frequency conversion board card, wherein the zero slot controller is used for realizing the test function of a power supply and distribution module and a measurement and control module, the zero slot controller is used for completing the integrated control of a PXI system, realizing the information interaction with each module of the case through a PXI bus interface and realizing the data transmission with a test design server through a network interface.
In the test design stage, based on a design center software package, test items are designed according to telemetry and remote control appointment files and subsystem test requirements, and test rules are edited. As shown in fig. 3, basic database maintenance tools are used for inputting basic information such as model instructions, parameters, criteria and the like, test design and flow planning software is used for constructing a test flow in a graphical dragging mode, and flow information is automatically saved as an electronic test rule in an XMAL form.
And in the satellite test implementation stage, based on the control center software package, the test rules are automatically executed, and the whole satellite test is carried out. As shown in fig. 4, the intelligent interpretation software automatically completes the interpretation of the relevant parameters before and after the instruction is sent by using the test execution software to automatically execute the test rules, and automatically sends prompt information to the testers by means of predefined interpretation conditions. The automatic execution may select a mode of sequential execution, parallel execution, loop execution, forced execution, or delayed execution. The telemetry and remote control front-end software is responsible for receiving a remote control instruction sent by the test execution software and sending telemetry data to the test database; the square matrix simulator control software receives the ground equipment operation instruction and simultaneously sends equipment state information to the test database. The intelligent interpretation software can also complete intelligent interpretation of satellite and test equipment states in real time, and once abnormality occurs, a tester is reminded in an audible and visual alarm mode, and the tester can also check data by using the real-time monitoring software and the trend analysis software to interpret satellite health states.
And in the test evaluation stage, analysis processing and summarizing of satellite test results are needed. At this stage, the test analysis and evaluation software provides data analysis and data mining functions, and automatically generates a test report according to the test result interpretation rules. The tester can not only perform data query on the test data, but also provide effective data support for test analysis and summarization by using rich graphics, trend analysis and derivative calculation functions.
The integrated test shelter provided by the invention has the advantages of unified interface, safety, reliability, high integration degree and automatic test function, realizes the optimized integration of a ground test system, maximizes the utilization of equipment resources, minimizes the volume of a system framework, standardizes an external interface, can efficiently and rapidly complete the system construction, test implementation and test analysis, and greatly improves the test efficiency of the pico-satellite.
What is not described in detail in the present specification is a well known technology to those skilled in the art.
Claims (8)
1. The integrated test shelter for the pico-nano satellite is characterized by comprising a power supply module, a power supply and distribution module, a measurement and control module, a PXI chassis, an integrated chassis and a test design server;
the power module adopts a solar array simulator to simulate an on-satellite solar cell array to supply power for the whole satellite, and the test design server controls the output of the solar array simulator;
the power supply and distribution module is arranged in the PXI chassis in an analog quantity acquisition board card mode, measures satellite parameters in a wired mode, monitors states, and transmits measurement results to the test design server for storage;
the measurement and control module is arranged in the PXI case in a board card mode and comprises an up-down frequency conversion board card and a modulation and demodulation board card which are controlled by a test design server;
the test design server is used for storing hardware drivers in the shelter and sending instructions according to test requirements to control and complete the test of the pico-satellite;
the PXI chassis is provided with a plurality of slot positions and is used for integrally installing a zero slot controller, a power supply and distribution module board card and a measurement and control module board card, wherein the zero slot controller realizes information interaction with other board cards in the PXI chassis through a PXI bus and performs information interaction with a test design server through a TCP/IP protocol;
the integrated chassis is used for installing and deploying a power module, a PXI chassis and a test design server;
the test design server comprises a design center software package, a control center software package and a data center software package, wherein the design center software package comprises a basic database maintenance tool and a test design and flow planning module; the control center software package comprises a test execution module, an intelligent interpretation module, a remote control front-end module and a matrix simulator control module; the data center software package comprises a test database and a test analysis and evaluation module;
the basic database maintenance tool is used for recording satellite model instructions, parameters and criterion basic information;
the test design and flow planning module is used for constructing a test flow in a graphical dragging mode, and the flow information is stored as an electronic test rule in an XMAL form;
the test execution module is used for automatically executing the electronic test rules, and in the execution process, before and after the instruction is sent, the intelligent interpretation module finishes the interpretation of the related parameters and sends out corresponding prompt information by means of pre-defined criterion basic information;
the telemetry and remote control front-end module is responsible for receiving the remote control instruction sent by the test execution module and sending the received telemetry data to the test database;
the square matrix simulator control module receives the ground equipment operation instruction, simulates satellite power supply state output, and sends square matrix simulator operation record and state information to the test database;
the intelligent interpretation module completes intelligent interpretation of satellite and test equipment states in real time, and alarms once abnormality occurs;
the test analysis and evaluation module is used for automatically generating a test report according to the historical data stored in the test database and the interpretation rule of the test result in the test evaluation stage.
2. The shelter of claim 1, in which: the power module adopts an E4261A solar array simulator which is of De technology.
3. The shelter of claim 1, in which: the power supply and distribution module adopts a PXI-8516 data acquisition card to acquire important satellite analog parameters.
4. The shelter of claim 1, in which: the modulation and demodulation function of the modulation and demodulation board card supports a spread spectrum and USB telemetry and remote control system, the intermediate frequency center frequency is 66.0-74.0 MHz, the remote control code rate is 8 bps-8 kbps, the telemetry code rate is 1024 bps-64 kbps, the frame length is 128-1024 bytes, and the frame synchronization code group length is 16-64 bits; the up-conversion board card supports 70MHz of input frequency, 20MHz of bandwidth, 2.0-2.4 GHz of output frequency, 0dB-30dB of gain control range, and the down-conversion function supports 2.0-2.4 GHz of input frequency, 70MHz of output frequency, 20MHz of bandwidth and 0dB-20dB of gain control range.
5. The shelter of claim 1 or 4, in which: the measurement and control module adopts a PXI-3U modulation and demodulation board card and an RC23-02-28 up-down conversion board card.
6. The shelter of claim 1, in which: the PXI chassis adopts an NI PXIe10651 chassis, the slot controller adopts an embedded controller NI PXIe-8133 based on a PXIe bus, and information interaction with each board card of the PXI chassis is realized through a PXI bus interface.
7. The shelter of claim 1, in which: the integrated chassis adopts a Peiliken rack box, is transported by adopting a front chassis cover and rear chassis cover mounting mode, is connected with an external interface through a switching panel, has the width of 19 inches and the height of 2U, has the external interface of 7Y 2-50ZJ interfaces, 8N-type interfaces and 3 network ports, is internally provided with a kilomega 24-port switch, has the width of 19 inches, has the height of 1U,1 KVM, has the width of 19 inches, has the height of 1U,1 8-jack power distribution unit PDU, has the width of 19 inches and has the height of 1U.
8. The shelter of claim 1, in which: the test design server adopts a delr R230 rack type server, an E3-1270V5 processor, a double network card and 2 USB3.0 ports.
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