CN113867308A - Portable minisatellite parallel acquisition control terminal - Google Patents
Portable minisatellite parallel acquisition control terminal Download PDFInfo
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- CN113867308A CN113867308A CN202111006881.4A CN202111006881A CN113867308A CN 113867308 A CN113867308 A CN 113867308A CN 202111006881 A CN202111006881 A CN 202111006881A CN 113867308 A CN113867308 A CN 113867308A
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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
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
Abstract
The invention relates to a portable minisatellite parallel acquisition control terminal which can be applied to the ground test of a power supply and distribution test system, a control test system and a satellite test system of a minisatellite. The PXI intelligent flat plate is adopted, a power supply and distribution test function module, a control test function module and a satellite test function module are integrated, an embedded board card structural design based on the PXI is adopted, an analog quantity acquisition board card of a small satellite, an RS422 serial port data acquisition card and a CAN bus data acquisition card share a PXI mixed slot case, the function integration of three ground test systems is achieved, interfaces are uniform, equipment is simple to unfold, and the system is flexible to upgrade.
Description
Technical Field
The invention relates to a portable minisatellite parallel acquisition control terminal which can be applied to the ground test of a power supply and distribution test system, a control test system and a satellite test system of a minisatellite.
Background
The ground test of the existing small satellite power supply and distribution test system, control test system and satellite affair test system is an important component of the whole satellite comprehensive test of the small satellite. At present, independent ground test equipment is adopted during ground test of each subsystem, the height of an existing discrete instrument and an existing upper-frame type integrated equipment is different from 3U to 5U, the equipment is large in size and complex to unfold and use, and transportation in a transition place requires multiple people to carry, so that time and labor are wasted.
In order to adapt to the characteristics of short research period, low development cost, strong quick response capability and the like of the small satellites, ground test equipment which is matched with the small satellites and has the characteristics of high integration level, high efficiency and intelligence needs to be researched urgently.
Disclosure of Invention
The technical problem solved by the invention is as follows: the portable small satellite parallel acquisition control terminal overcomes the defects of the prior art, is portable, miniaturized and digitalized through the application of a PXI intelligent flat plate, and meets the application requirements of a satellite power supply and distribution test system, a control test system and a satellite affair test system to the greatest extent.
The technical scheme of the invention is as follows:
a portable minisatellite parallel acquisition control terminal comprises a PXI intelligent flat plate, a power supply and distribution test function module, a control test function module and a satellite test function module,
the PXI intelligent flat plate is adopted, integrates a power supply and distribution testing function module, a control testing function module and a satellite testing function module, and is connected with the small satellite through a three-to-four switching cable; the PXI intelligent flat plate completes man-machine interaction, the power supply and distribution testing function module completes real-time acquisition of the analog quantity of the microsatellite power subsystem, the testing function module is controlled to complete dynamic simulation calculation and real-time output of microsatellite data, and the satellite testing function module completes information transmission of a microsatellite RS422 satellite-ground information transmission channel and a satellite-ground CAN bus information channel;
the power supply and distribution test functional module adopts an analog quantity acquisition board card, the number of analog quantity acquisition links of the single board card is not less than 8, the power supply and distribution test functional module has an inter-channel separation function, the range is-40V- +40V, the sampling rate is more than or equal to 1MSPS, and the analog quantity acquisition board card comprises an analog quantity acquisition port;
the control test function module adopts an RS422 serial port data acquisition card, the number of RS422 serial port communication ports is not less than 4, the maximum data communication rate of the ports is more than or equal to 921.6Kbps, photoelectric isolation is adopted, the ports have electrostatic discharge protection capability, and the RS422 serial port data acquisition card comprises 422 ports;
the star affair test function module adopts a CAN bus data acquisition card and an RS422 serial port data acquisition card, the high-speed CAN interfaces of the CAN bus data acquisition card are not less than 4, the transmission data rate is 5 kbits/s-1 Mbits/s, the channels are isolated by single photoelectricity, and the CAN bus data acquisition card comprises a CAN port.
Furthermore, the PXI intelligent flat plate comprises a PXI mixed slot case, an integrated display, a touch screen, a controller, a power supply, a network port and a USB port.
Furthermore, the number of the RS422 serial port communication ports is not less than 4, the maximum data communication rate of the ports is not less than 921.6Kbps, photoelectric isolation is adopted, the ports have electrostatic discharge protection capability, and the RS422 serial port data acquisition card comprises the 422 ports.
Furthermore, the three-to-four switching cable comprises a connecting cable and connectors, wherein three connectors are arranged at one end of the connecting cable and are respectively connected with the analog quantity acquisition port, the 422 port and the CAN port, and four connectors are arranged at the other end of the connecting cable and are connected with a star catalogue cable of a satellite.
Furthermore, the PXI mixed slot case adopts a transverse stacked structure as a main frame platform, and the number of the internal PXI slot positions is not less than 4.
Furthermore, the analog quantity acquisition board card, the RS422 serial port data acquisition card and the CAN bus data acquisition card are all arranged in the PXI hybrid slot case.
Furthermore, the analog quantity acquisition board card realizes the analog quantity measurement of the power subsystem, the RS422 serial port data acquisition card realizes the serial port communication of the control test and the housekeeping test, and the CAN bus data acquisition card realizes the data acquisition of the housekeeping test.
Furthermore, all the function module board cards are integrated based on the PXI bus, and the controller interacts data with other function module board cards on the PXI bus through the PXI bus.
Further, the connectors of the fourteen-patch cable include J30J type connectors, DB type connectors, Y2 type connectors, and J36A type connectors.
Compared with the prior art, the invention has the beneficial effects that:
(1) the parallel acquisition control terminal can enable an operator to realize man-machine interaction by using the PXI intelligent panel, and is convenient to operate and carry;
(2) the integration level of the ground test equipment is improved by the parallel acquisition control terminal, and all board cards are integrated in a chassis (length multiplied by width multiplied by height: 429mm multiplied by 285mm multiplied by 85 mm);
(3) the parallel acquisition control terminal equipment is simple and convenient to unfold and use, and only one transfer cable needs to be connected during operation.
Drawings
FIG. 1 is a functional block diagram of a portable minisatellite parallel acquisition control terminal system according to the present invention;
FIG. 2 is a schematic diagram of a portable minisatellite parallel acquisition control terminal system architecture according to the present invention;
FIG. 3 is a diagram of a three-to-four switching cable interface of the portable minisatellite parallel acquisition control terminal of the present invention;
fig. 4 is a software structure diagram of the portable minisatellite parallel acquisition control terminal of the invention.
Detailed Description
The invention is further illustrated by the following examples.
The invention provides a portable minisatellite parallel acquisition control terminal, which is shown as a system function block diagram in figure 1, adopts a PXI intelligent flat plate and integrates a power supply and distribution test function module, a control test function module and a satellite affair test function module. The PXI intelligent flat plate completes man-machine interaction, the power supply and distribution testing function module completes real-time acquisition of the analog quantity of the microsatellite power subsystem, the testing function module is controlled to complete dynamic simulation calculation and real-time output of microsatellite data, and the satellite testing function module completes information transmission of a microsatellite RS422 satellite-ground information transmission channel and a satellite-ground CAN bus information channel.
As shown in fig. 2, a schematic diagram of a system architecture of a portable microsatellite parallel acquisition control terminal of the present invention mainly includes a PXI hybrid slot chassis, an analog acquisition board card, an RS422 serial data acquisition card, a CAN bus data acquisition card, an integrated display, a touch screen, a controller, a power supply, a network port, and a USB port, and the specific implementation method is as follows:
the PXI mixed slot case adopts a stacked structure as a main frame platform, 4 PXI slot positions are provided inside, the application requirements of a moonlet power supply and distribution test function module, a control test function module and a satellite test function module CAN be met, the slot positions are transversely arranged, and an analog quantity acquisition board card, an RS422 serial port data acquisition card and a CAN bus data acquisition card CAN be inserted into the slot positions. The PXI hybrid slot chassis integrates a liquid crystal display and a multi-point capacitive touch screen and is installed on the top surface of the chassis.
The analog quantity acquisition board card has the advantages that the number of the single board card analog quantity acquisition links is equal to 8, the function of channel separation is realized, the range is better than minus 40V to plus 40V, the resolution is 16bit, the sampling rate is greater than or equal to 1MSPS, the precision is +/-0.1% of the range, the cache capacity is 32M, the analog quantity measurement of the power subsystem is realized, and an analog quantity acquisition port is arranged on the analog quantity acquisition board card.
The RS422 serial port data acquisition card has 8 RS422 serial port communication ports, the maximum data communication rate of the ports is larger than or equal to 921.6Kbps, photoelectric isolation is adopted, the ports have electrostatic discharge protection capability, the serial port communication of control test and star test is realized, and the RS422 serial port data acquisition card is provided with the 422 ports.
The CAN bus data acquisition card has 4 high-speed CAN interfaces, the transmission data rate is 5 kbits/s-1 Mbits/s, the channels are isolated by single photoelectricity, a 20MHz external synchronous clock is provided with 1 mu s of time standard precision, the data acquisition of the star test is realized, and the CAN bus data acquisition card is provided with a CAN port.
The controller has the functions of digital information storage, digital information processing, PXI bus communication, running test software and the like, has a main frequency of 1.7GHz, uses a dual-core processor, has a memory capacity of 4GB, a hard disk capacity of 500G and 1 10/100/1000Mbps Ethernet interface, and supports a Windows7/Windows8 system.
Fig. 3 is a diagram of a four-third switching cable interface of the portable small satellite parallel acquisition control terminal according to the present invention. The three-to-four patch cable includes a J30J type connector, a DB type connector, a Y2 type connector, a J36A type connector, and a connection cable. The method comprises the steps that a tested signal during the power supply and distribution test of the small satellite is converted into a J30J type connector interface required by a parallel acquisition control terminal through a Y2 type connector, the tested signal during the control test is converted into a J30J type connector interface required by the parallel acquisition control terminal through a Y2 type connector, the tested signal during the star test is converted into a J30J type connector interface required by the parallel acquisition control terminal through a Y2 type connector, and the tested signal during the star test is converted into a DB type connector interface required by the parallel acquisition control terminal through a J36A type connector. The function integration of three ground test systems is realized through the interface conversion function of the three-in-four switching cable, the interfaces are uniform, and the operation is simple.
Fig. 4 is a diagram showing a software structure of a portable microsatellite parallel acquisition control terminal according to the present invention. The device software part adopts LabVIEW compiling environment in Windows7 operating system. The logic control function is displayed in a graphical mode, and a human-computer interaction interface is convenient and visual and flexible to operate. The software running on the touch screen comprises power supply and distribution software, dynamics simulation software, comprehensive control software, CAN bus monitoring software and 422 data monitoring software.
The power supply and distribution software has the functions of real-time monitoring, data archiving and querying, alarm recording and querying, and the interfaces related to the functions can be directly or indirectly switched by clicking the icons.
The dynamic simulation software carries out periodic data acquisition and carries out data processing and sending based on the acquired data; calling a dynamic simulation model to complete simulation propulsion according to the acquired data; and buffering the data, packaging and storing.
The comprehensive control software completes the configuration of relevant parameters of the dynamic simulation; displaying a numerical value in the dynamic simulation feedback operation process; and the scheduling and control of the dynamics simulation are realized.
The CAN bus monitoring software is used for reading data information received by the CAN bus data acquisition card through the PXI bus, displaying and storing the data and inquiring historical data.
422 data monitoring software and an RS422 serial port data acquisition card communicate through a PXI bus, and adopt running state character information transmitted on the bus, and realize state display and data storage through software; the housekeeping uplink injection data is stored in software, transmitted to the RS422 serial port data acquisition card through the PXI bus and then transmitted to the housekeeping through the 422 port.
The size of the portable small satellite parallel acquisition control terminal is as follows: 429mm 285mm 85mm integrates the test equipment of three ground test systems, and is small in size and convenient to store and carry.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (9)
1. A portable minisatellite parallel acquisition control terminal is characterized by comprising a PXI intelligent flat plate, a power supply and distribution test function module, a control test function module and a housekeeping test function module,
the PXI intelligent flat plate is adopted, integrates a power supply and distribution testing function module, a control testing function module and a satellite testing function module, and is connected with the small satellite through a three-to-four switching cable; the PXI intelligent flat plate completes man-machine interaction, the power supply and distribution testing function module completes real-time acquisition of the analog quantity of the microsatellite power subsystem, the testing function module is controlled to complete dynamic simulation calculation and real-time output of microsatellite data, and the satellite testing function module completes information transmission of a microsatellite RS422 satellite-ground information transmission channel and a satellite-ground CAN bus information channel;
the power supply and distribution test functional module adopts an analog quantity acquisition board card, the number of analog quantity acquisition links of the single board card is not less than 8, the power supply and distribution test functional module has an inter-channel separation function, the range is-40V- +40V, the sampling rate is more than or equal to 1MSPS, and the analog quantity acquisition board card comprises an analog quantity acquisition port;
the control test function module adopts an RS422 serial port data acquisition card, the number of RS422 serial port communication ports is not less than 4, the maximum data communication rate of the ports is more than or equal to 921.6Kbps, photoelectric isolation is adopted, the ports have electrostatic discharge protection capability, and the RS422 serial port data acquisition card comprises 422 ports;
the star affair test function module adopts a CAN bus data acquisition card and an RS422 serial port data acquisition card, the high-speed CAN interfaces of the CAN bus data acquisition card are not less than 4, the transmission data rate is 5 kbits/s-1 Mbits/s, the channels are isolated by single photoelectricity, and the CAN bus data acquisition card comprises a CAN port.
2. The portable microsatellite parallel acquisition control terminal as recited in claim 1, wherein the PXI intelligent tablet comprises a PXI hybrid slot chassis, an integrated display and touch screen, a controller, a power supply, a network port and a USB port.
3. The portable minisatellite parallel acquisition control terminal as recited in claim 1, wherein the number of RS422 serial port communication ports is not less than 4, the maximum data communication rate of the ports is not less than 921.6Kbps, photoelectric isolation is adopted, the ports have electrostatic discharge protection capability, and the RS422 serial port data acquisition card comprises 422 ports.
4. The portable minisatellite parallel acquisition control terminal as recited in claim 1, wherein the trisection four-switch cable comprises a connecting cable and connectors, wherein one end of the connecting cable has three connectors respectively connected with the analog quantity acquisition port, the 422 port and the CAN port, and the other end has four connectors connected with the star catalogue cable of the satellite.
5. The portable small satellite parallel acquisition control terminal as claimed in claim 2, wherein the PXI hybrid slot chassis adopts a horizontal stacked structure as a main frame platform, and the number of internal PXI slots is not less than 4.
6. The portable minisatellite parallel acquisition control terminal as recited in claim 1, wherein the analog acquisition board card, the RS422 serial port data acquisition card and the CAN bus data acquisition card are all installed inside a PXI hybrid slot chassis.
7. The portable minisatellite parallel acquisition control terminal as recited in claim 6, wherein the analog quantity acquisition board card realizes power subsystem analog quantity measurement, the RS422 serial port data acquisition card realizes serial port communication of control test and housekeeping test, and the CAN bus data acquisition card realizes data acquisition of housekeeping test.
8. The portable microsatellite parallel acquisition control terminal as recited in claim 6, wherein all function module boards are integrated based on a PXI bus, and the controller interacts data with other function module boards on the PXI bus through the PXI bus.
9. The portable minisatellite parallel acquisition control terminal as recited in claim 1, wherein the connectors of the three-to-four patch cable include a J30J type connector, a DB type connector, a Y2 type connector and a J36A type connector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111006881.4A CN113867308A (en) | 2021-08-30 | 2021-08-30 | Portable minisatellite parallel acquisition control terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111006881.4A CN113867308A (en) | 2021-08-30 | 2021-08-30 | Portable minisatellite parallel acquisition control terminal |
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| CN113867308A true CN113867308A (en) | 2021-12-31 |
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| CN202111006881.4A Pending CN113867308A (en) | 2021-08-30 | 2021-08-30 | Portable minisatellite parallel acquisition control terminal |
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2021
- 2021-08-30 CN CN202111006881.4A patent/CN113867308A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050261856A1 (en) * | 2004-05-21 | 2005-11-24 | Advantest Corporation | Carrier module for adapting non-standard instrument cards to test systems |
| CN202085171U (en) * | 2011-03-28 | 2011-12-21 | 航天东方红卫星有限公司 | Universal satellite-ground wired interface testing system |
| CN103983298A (en) * | 2014-04-22 | 2014-08-13 | 航天东方红卫星有限公司 | Minisatellite integration comprehensive test system based on MAC Panel |
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