CN105867350A - Satellite ground closed-loop simulator based on PXI architecture - Google Patents
Satellite ground closed-loop simulator based on PXI architecture Download PDFInfo
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- CN105867350A CN105867350A CN201610243538.4A CN201610243538A CN105867350A CN 105867350 A CN105867350 A CN 105867350A CN 201610243538 A CN201610243538 A CN 201610243538A CN 105867350 A CN105867350 A CN 105867350A
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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
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0243—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults model based detection method, e.g. first-principles knowledge model
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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
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
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Abstract
The invention provides a satellite ground closed-loop simulator based on a PXI architecture. The satellite ground closed-loop simulator is used for ground closed-loop testing of a satellite attitude control system. The PXI architecture is adopted for the designed satellite ground closed-loop simulator to implement flexible configuration of each module, implemented main functions comprise implementation and output of simulation data of a dynamics simulation computer, an attitude control sensor simulator and an attitude control execution mechanism simulator. The computation period of the dynamics simulation computer is 1 ms, and the satellite ground closed-loop simulator has the advantages of being quick in speed and high in safety and flexibility.
Description
Technical field
The present invention relates to satellite ground technical field of measurement and test, particularly to a kind of satellite ground based on PXI framework
Closed-loop simulation device.
Background technology
Satellite Attitude Control System is used for realizing the attitude of satellite and pointing to control, is to ensure that the satellite normal work of each subsystem
Complete the important prerequisite of aerial mission.Importance due to posture control system so that the survey to appearance control subsystem
Trial work is made for the top priority of satellite ground test.Satellite ground closed-loop simulation device can well complete to defend
The ground closed cycle simulation test task of star posture control system, in order to quick, reliably complete ground test work,
Designing open, general-purpose type, the ground testing system of automatization becomes the important directions of satellite test work.
In the development process of satellite attitude control system, system test is an important link.For appearance
The test of Ore-controlling Role, substantially to attitude measurement, gesture stability and to external interface three part of properties
Test.Generally Simulation System of A Satellite Attitude Control can use semi-physical simulation and full physical simulation two ways.Wherein
In full physical simulation system, owing to various real physical devices to be directly accessed emulation loop, so these
During actual physical, the impact on simulation control subsystem performance effectively can reflect in simulation result,
There is higher credibility, but various real physical device greatly add analogue system cost and
Complexity.Another mode is semi-physical system, and hardware participates in emulation loop, part simultaneously
Hardware uses again the mode of mathematical simulation, and semi-physical system combines the excellent of mathematical simulation and physical simulation
Point, has low cost, simple to operate, and the multiple advantage such as simulation Credibility is high.At Satellite Attitude Control System
During the debugging of Electricity Federation, ground, it is contemplated that test period and the factor of cost, generally use semi-physical simulation
Mode gathers the true flight progress the most in-orbit of satellite, by closed-loop simulation device simulate the electric interfaces on star and
Operating characteristic, completes the ground simulation test of posture control system.
Moonlet ground appearance control closed cycle simulation test system early has research and development at home, and within 2013, Beijing controls engineering
Institute develops a kind of based on Windows+TRX system framework, and the Satellite Attitude control using device PCI card is real-time
Method of testing.But conventional satellite ground emulation test system uses PC framework board, and motility is relatively low,
Emulation cycle is longer, it is impossible to the situation in-orbit of authentic and valid reaction satellite, for Windows+TRX framework
Exploitation test program, programming technique level requirement is high, and the construction cycle is long, is not all suitable for satellite test system
Quick exploitation.
Summary of the invention
The invention solves the problems that technical problem of the prior art, it is provided that a kind of satellite ground based on PXI framework closes
Ring simulator.
In order to solve above-mentioned technical problem, technical scheme is specific as follows:
A kind of satellite ground closed-loop simulation device based on PXI framework, including:
Host computer, described host computer runs the Veristand engineering of closed-loop simulation device, and user can pass through host computer circle
Data interaction is carried out between face and NI PXI controller；
NI PXI controller, including: Custom Device and kinetic model；Wherein, Custom Device
The on-board equipment unit write according to the agreement of satellite transit for user, is used for simulating star upper-part in orbit
Time state；Kinetic model is for realizing the emulation of spatial environments；
Each functional module, described each functional module can be simulated unit physical interface on star, be used for outside
The data interaction of each unit parts；
Center machine, described center machine, can be by functional module according to certain during carrying out emulation testing
Communication protocol sends commands to Custom Device, and Simulation Center machine is to the control situation of executor on star.
In technique scheme, described host computer builds kinetic model by Simulink, including: attitude
Kinetic model, execution unit model, sensing unit model.
In technique scheme, under the RT real time operating system environment run on NI PXI controller, can
Complete the work of the initialization operation to PXI board.
In technique scheme, Custom Device includes executor and sensor；Custom Device leads to
Crossing RT-FIFO to send executor's information to kinetic model, kinetic model realizes space environment simulation, root
According to the information of executor, the sensor perception data in orbit that will be obtained by the calculating of spatial model.
In technique scheme, the state of dynamics simulation is passed to by kinetic model by RT-FIFO
Sensor in Custom Device, in order to analog satellite appearance control sensor duty under spatial environments.
In technique scheme, Custom Device sensor can be according to the agreement of center machine by simulation
On star, the value of sensor is returned to center machine by physical interface.
In technique scheme, communicated by LAN mode between kinetic model with host computer, user
The result of calculation of interface display kinetic model and the control to kinetic model, can also carry out data simultaneously
Monitoring and storage.
The present invention has a following beneficial effect:
The satellite ground closed-loop simulation device based on PXI framework of the present invention, utilizes the real-time of LabVIEW RT
With the powerful disposal ability of PXI processor, traditional 50ms, 20ms dynamics simulation cycle is risen to 1ms.
Whole satellite ground closed-loop simulation is made to be more nearly real satellite situation in-orbit.System is based on PXI framework, tool
There is higher motility, reliability and opening, in satellite ground is tested.
The satellite ground closed-loop simulation device based on PXI framework of the present invention, uses PXI Implement of Function Module satellite
Interface needed for each unit parts and functional simulation, including dynamics computer, appearance control sensor and appearance control
The functions such as executor, can complete the function needed for satellite ground closed cycle simulation test, and improve really simultaneously
The flexible configuration of closed loop test system, improves the versatility of system.
Accompanying drawing explanation
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the satellite ground closed-loop simulation device based on PXI framework of the present invention.
Detailed description of the invention
The invention thought of the present invention is: the satellite ground closed-loop simulation device based on PXI framework of the present invention, selects
NI Veristand software development environment, can be to the function of module and interface features while engineering operation
Configuring, this motility, versatility facilitate implementation the senior utility strategies of " design with test synchronization carry out ",
Substantially reduce test period；The operating system that the controller of PXI framework selects simultaneously is LabVIEW RT system
System, substantially reduces emulation cycle, traditional emulation cycle is risen to 1ms, make satellite ground emulation testing
Being more nearly the true situation in-orbit of satellite, have speed fast, precision is high, highly reliable, it is simple to operation etc.
Advantage so that the test to appearance control subsystem and center machine is more perfect.
The present invention, in order to shorten the Satellite Attitude control subsystem ground simulation cycle, improves the motility of system with reliable
Property, for the closed-loop simulation device during satellite test, it is provided that a kind of satellite ground based on PXI framework closes
The design of ring simulator, this programme is with mixing multi-groove PXI cabinet as carrier, with four core core i7PXI
Controller is control core, required each when coordinating many group PXI functional modules to realize satellite ground closed loop test
Item function, emulation cycle, up to 1ms, has flexible operation, and simulation velocity is fast, and measuring accuracy is high, reliability
The advantage such as strong.
The satellite ground closed-loop simulation device based on PXI framework of the present invention mainly includes host computer and slave computer, its
In:
Host computer mainly runs the NI Veristand engineering of closed-loop simulation device, is carrying out during closed loop mould flies,
User is by host computer by the controller of the download program of closed-loop simulation device to PXI closed-loop simulation device, and user is upper
Whether user interface in the machine of position can control the operation of closed-loop simulation device, and host computer can be as whole simultaneously
The display interface of attitude of satellite data and the work of Fault Control；
LAN mode is taked in communication between slave computer and host computer, and whole closed-loop simulation device slave computer is by NI
PXI cabinet, NI PXIe controller and PXI board composition.LabVIEW RT is run on PXI controller
Operating system, mainly realizes the control to whole closed-loop simulation device and the realization of operational model, four core Core i7
Processor can by the control periodic duty of Dynamics Simulation Model to more than 1ms, satellite closed cycle test needed for its
Its operational model the most all can be implanted in PXI controller.PXI functional module can realize each unit portion of satellite
Interface needed for part and functional simulation, used by the collocation of each PXI functional module, can realize satellite closed cycle
Interface needed for test and the simulation of function.
Closed-loop simulation device hardware uses PXI mixing cabinet, PXI controller and PXI functional module to form whole system
The hardware components of system.The NI PXIe-1075 cabinet that NI company produces selected by PXI cabinet, and controller uses NI public
The NI PXIe-8135 controller that department produces, each PXI functional module includes: NI PXIe-6363 data collecting card,
PS PXI-3381 electric current output card, NI 8234 Ethernet board, NI PXI-8513CAN communication card, NI
PXI-8433/4RS-485/RS-422RS-485/422 communication interface card, NI PXI-8432/4RS-232 communication connects
Mouth card, NI PXIe-7976R FlexRIO FPGA module and NI PXIe-5646R-G radio frequency vector signal are sent out
Raw device.
Below in conjunction with the accompanying drawings the present invention is described in detail.
The requirements such as workflow according to moonlet ground closed-loop simulation device, PERCOM peripheral communication, the present invention based on
The satellite ground closed-loop simulation device of PXI framework is as shown in Figure 1.
As shown in Figure 1, closed-loop simulation device host computer runs the Veristand engineering of whole closed-loop simulation device, user
Can be by carrying out data interaction between host computer interface and NI PXI controller；Run on NI PXI controller
LabVIEW RT operating system, can shorten to 1ms by the emulation cycle of whole test system；?
Two most crucial constituent: Custom on closed-loop simulation device have been run in LabVIEW RT operating system
Device and kinetic model.Wherein Custom Device is the star that user writes according to the agreement of satellite transit
Upper equipment unit, the appearance control component simulator being considered as on satellite, it is used for simulating star upper-part in orbit
Time state；Kinetic model mainly realizes the emulation of spatial environments.Each functional module simulation unit physics connects
Mouthful, complete the data interaction of unit parts each with outside.
Its work process is as follows:
(1) kinetic model is built at host computer by Simulink, including attitude dynamics model,
Execution unit model, sensing unit model etc..
(2) in NI Veristand software, Custom is write according to the agreement of center machine and kinetic model
Device, according to different functional requirements, selects different models to be combined, based on NI Veristand
Under software environment, Simulation Model is configured.
(3), under the RT real time operating system environment run on PXI controller, complete a series of PXI plates
The initialization operation work of card, including mode of operation and the setting of initial value of board.
(4) during carrying out emulation testing, center machine will according to certain communication protocol by functional module
The executor that order is sent in Custom Device, Simulation Center machine is to the control situation of executor on star.
Custom Device is stand-alone device on the star write according to the interface protocol of satellite transit by user, can see
Make the appearance control component simulator on satellite.
(5) executor's information is sent to kinetic model, kinetics by Custom Device by RT-FIFO
Model realization space environment simulation, according to the information of executor, quick by obtain by calculating of spatial model
Sensor perception data in orbit.The state of dynamics simulation is passed to by kinetic model by RT-FIFO
Sensor in Custom Device, in order to analog satellite appearance control sensor duty under spatial environments.
(6) Custom Device sensor according to center machine agreement by simulation star on physical interface by quick
The value of sensor returns to center machine.
(7) communicated by LAN mode between kinetic model with host computer, show kinetics in user interface
The result of calculation of model and the control to kinetic model, can also carry out monitoring and the storage of data simultaneously.
In Veristand engineering, Custom Device, kinetic model and user interface are all with interface
Form externally embody, user can configure the interface between them flexibly, it is achieved with external data
Alternately, completing the test emulation task of Satellite Attitude Control System, NI Veristand software can be implemented in journey simultaneously
Carry out the modification of software during sort run, can greatly shorten the exploitation week of test emulation system
Phase.
Explanation about the english abbreviation in above-mentioned detailed description of the invention:
PXI:PCI extensions for instrumentatiom (PCI towards instrument system extends)；
RT:Real Time (in real time)；
LAN:Local Area Network (LAN)；
Custom Device: self-defining device (this is the proper noun in Veristand software)
Obviously, above-described embodiment is only for clearly demonstrating example, and not to embodiment
Limit.For those of ordinary skill in the field, can also be made it on the basis of the above description
The change of its multi-form or variation.Here without also cannot all of embodiment be given exhaustive.And by
What this was extended out obviously changes or changes among still in the protection domain of the invention.
Claims (7)
1. a satellite ground closed-loop simulation device based on PXI framework, it is characterised in that including:
Host computer, described host computer runs the Veristand engineering of closed-loop simulation device, and user can pass through host computer circle
Data interaction is carried out between face and NI PXI controller；
NI PXI controller, including: Custom Device and kinetic model；Wherein, Custom Device
The on-board equipment unit write according to the agreement of satellite transit for user, is used for simulating star upper-part in orbit
Time state；Kinetic model is for realizing the emulation of spatial environments；
Each functional module, described each functional module can be simulated unit physical interface on star, be used for outside
The data interaction of each unit parts；
Center machine, described center machine, can be by functional module according to certain during carrying out emulation testing
Communication protocol sends commands to Custom Device, and Simulation Center machine is to the control situation of executor on star.
Satellite ground closed-loop simulation device based on PXI framework the most according to claim 1, it is characterised in that
Described host computer builds kinetic model by Simulink, including: attitude dynamics model, execution unit mould
Type, sensing unit model.
Satellite ground closed-loop simulation device based on PXI framework the most according to claim 1, it is characterised in that
Under the RT real time operating system environment run on NI PXI controller, the behaviour of the initialization to PXI board can be completed
Make work.
Satellite ground closed-loop simulation device based on PXI framework the most according to claim 1, it is characterised in that
Custom Device includes executor and sensor；Custom Device passes through RT-FIFO by executor
Information sends to kinetic model, and kinetic model realizes space environment simulation, according to the information of executor,
The sensor perception data in orbit that will be obtained by the calculating of spatial model.
Satellite ground closed-loop simulation device based on PXI framework the most according to claim 4, it is characterised in that
Kinetic model by RT-FIFO the state of dynamics simulation passed in Custom Device quick
Sensor, in order to analog satellite appearance control sensor duty under spatial environments.
Satellite ground closed-loop simulation device based on PXI framework the most according to claim 4, it is characterised in that
Custom Device sensor can according to the agreement of center machine by simulation star on physical interface by sensitivity
The value of device returns to center machine.
Satellite ground closed-loop simulation device based on PXI framework the most according to claim 1, it is characterised in that
Communicated by LAN mode between kinetic model with host computer, show kinetic model in user interface
Result of calculation and control to kinetic model, monitoring and the storage of data can also be carried out simultaneously.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324572A (en) * | 2016-08-24 | 2017-01-11 | 湖北三江航天红峰控制有限公司 | GPS simulator and realizing method thereof |
| CN106647335A (en) * | 2017-01-13 | 2017-05-10 | 王洋 | Digital satellite attitude and orbit control algorithm ground simulation verification system |
| CN107907892A (en) * | 2017-09-15 | 2018-04-13 | 长光卫星技术有限公司 | A kind of navigation signal simulator based on PXI frameworks, closed loop controller and closed loop test method |
| CN107976915A (en) * | 2017-11-24 | 2018-05-01 | 长光卫星技术有限公司 | A kind of small-sized unmanned plane semi-physical system and emulation mode |
| CN110031700A (en) * | 2019-03-25 | 2019-07-19 | 中国科学院合肥物质科学研究院 | A kind of satellite load universal grounding detection board based on PXI bus |
| CN110850842A (en) * | 2019-11-05 | 2020-02-28 | 上海航天控制技术研究所 | Satellite full-function single-machine simulation system and method based on hardware-in-the-loop |
| CN114019826A (en) * | 2021-10-12 | 2022-02-08 | 湖北三江航天红林探控有限公司 | Semi-physical simulation test system and method for solid attitude control power system controller |
| CN114088978A (en) * | 2021-11-16 | 2022-02-25 | 中国电子科技集团公司第二十研究所 | PXI structure-based calibration method and device for TACAN signal speed parameters |
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| CN114019826A (en) * | 2021-10-12 | 2022-02-08 | 湖北三江航天红林探控有限公司 | Semi-physical simulation test system and method for solid attitude control power system controller |
| CN114019826B (en) * | 2021-10-12 | 2023-11-03 | 湖北三江航天红林探控有限公司 | Semi-physical simulation test system and method for controller of solid attitude control power system |
| CN114088978A (en) * | 2021-11-16 | 2022-02-25 | 中国电子科技集团公司第二十研究所 | PXI structure-based calibration method and device for TACAN signal speed parameters |
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Application publication date: 20160817 |