CN102999425B - Based on the housekeeping software emulation test system of virtual instrument technique - Google Patents

Based on the housekeeping software emulation test system of virtual instrument technique Download PDF

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CN102999425B
CN102999425B CN201210497859.9A CN201210497859A CN102999425B CN 102999425 B CN102999425 B CN 102999425B CN 201210497859 A CN201210497859 A CN 201210497859A CN 102999425 B CN102999425 B CN 102999425B
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pxi
house keeping
data
computer
module
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CN102999425A (en
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云颖
宋雷军
沈炳华
赵小军
魏冬冬
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Shanghai Aerospace Measurement Control Communication Institute
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Shanghai Aerospace Measurement Control Communication Institute
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Abstract

The present invention relates to satellite-signal emulation technology and virtual instrument technique, disclose a kind of housekeeping software emulation test system based on virtual instrument technique, comprise industrial computer, analog/digital signal input-output card, serial port board, CAN card, FPGA high-speed transfer card, industrial computer is connected with each board, and each board is connected with house keeping computer.Emulation test system functionally comprises satellite and the rocket separation module, directly remote control module, analog quantity telemetry module, remote control note digital-to-analogue block, telemetry receiving and parsing module, program control command receiver module, GPS signaling module whole second, time reference module, CAN data simulation module, digital transmission module, serial communication modular.The present invention is by the hardware composition of frame-type and software module programming flexibly, and compared with prior art, its beneficial effect is: system architecture is simple, easy to operate, construction cycle is short, can be suitable for various model highly versatile, can meet flexible and changeable dynamic test and the test of non-standard signal.

Description

Based on the housekeeping software emulation test system of virtual instrument technique
Technical field
The present invention relates to a kind of housekeeping software emulation test system, particularly a kind of housekeeping software emulation test system based on virtual instrument technique.
Background technology
Because the reliability requirement of space equipment is very high, and the software reliability of equipment and robustness are the key factors that can it well run in the presence of a harsh environment, and therefore the critical software of these space equipments all will carry out strict integration test before dispatching from the factory.
At present, domestic a lot of software evaluation mechanisms mainly adopt and carry out software test in two ways.One, application designer joint-trial environment replaces independent development test board to carry out software test, and the method cannot carry out the test of fault use-case, cannot change peripheral environment, can not carry out comprehensive third party autonomous test.Its two, for the test board that the exploitation of single tested software matches with it, this method can only be applied to certain software of certain fixing model, very flexible, the wasting of resources, and test period is longer.These two kinds of method of testings all cannot meet the heavy polytypic test assignment of short, task of current cycle, in the urgent need to develop a kind of have dirigibility, versatility test macro to complete the software test of polytypic multi-series.
External most of Software Testing Tool is all static test for software and Application and Development, for the test of flexible and changeable dynamic test and non-standard signal, does not have corresponding test macro.
That is, the test macro for dynamic test and non-standard signal test is lacked now.Especially for existing polytypic housekeeping software, each test macro need be developed and match with it, there is the construction cycle long, the problem of very flexible.
Summary of the invention
For the limitation of existing test macro, technical matters to be solved by this invention is, for polytypic housekeeping software provides general test macro, to meet the software test requirement of quickness and high efficiency, solves the problem of existing test macro poor universality, construction cycle length.
For achieving the above object, the present invention is achieved by the following technical solutions:
Based on the housekeeping software emulation test system of virtual instrument technique, comprise PXI industrial computer, analog/digital signal input-output unit, serial port device, CAN device, FPGA high-speed transfer device, described PXI industrial computer and analog/digital signal input-output unit, serial port device, CAN device, FPGA high-speed transfer device is connected respectively by PXI bus, it forms the hardware environment of housekeeping software emulation test system, the emulation of whole system is completed by the master control of PXI industrial computer, it is by each device work described in the total line coordination of PXI, each device has the house keeping computer of housekeeping software to be connected with operation.
Analog/digital signal input-output unit adopts analog/digital signal input-output card PXI-6259.
It is connected that the AO0 mouth that simulation sends the satellite and the rocket separation module application PXI-6259 of satellite and the rocket separation signals is that the delivery outlet of satellite and the rocket separation signal is separated port with the house keeping computer satellite and the rocket; Can arrange flexibly the satellite and the rocket be separated before be separated after signal level, can the delivery time of control signal.
The AI0-AI11 port of analog quantity telemetry module application PXI-6259 board that simulation receives analog quantity telesignalisation is connected with 12 tunnel analog quantity remote measurement ports of house keeping computer, receives the simulating signal of 12 tunnels from house keeping computer; 12 road analog signals displays can be carried out by real-time rendering figure.
Analog/digital signal input-output unit also adopts timing and digital input/output cards PXI-6624.
The ctr0-ctr7 port of direct remote control module application PXI-6624 board 1 that simulation sends direct telecommand is connected with the 8 direct remote control port in tunnel of house keeping computer, the 8 direct telecommands in tunnel can be sent, the significant level of transmission instruction can be set, instruction level width, steering order delivery time are set.
Ctr0 with the ctr1 port of GPS signaling module application whole second PXI-6624 board 2 that simulation sends GPS signal whole second is connected with 2 road GPS signal ports whole second of house keeping computer, and the low level pulse signal of generation one fixed width per second is to house keeping computer; Dutycycle and the cycle of low level pulse signal can be set, can control signal delivery time.
Ctr2 with the ctr3 port of time reference module application PXI-6624 board 2 of simulation transmitting time reference signal is connected with 2 road time reference signal ports of house keeping computer, produces the square-wave signal of two-way 5MHz to house keeping computer.
CAN device adopts CAN card PXI-8464.
Simulated dual is connected to CAN0 with CAN1 of the CAN data simulation module application PXI-8464 of CAN communication and the CAN A/B bus of house keeping computer, realizes the simulation of slave computer CAN function; Reception and the transmission of CAN data can be realized, normal CAN communication test and fault test can be carried out, can CAN Data Analysis be carried out, can automatic or manual response CAN information.
Serial port device adopts serial port board PXI-8431, described simulated dual is connected to the 2 road RS422 interfaces of the serial communication modular application PXI-8431 of asynchronous serial communication with house keeping computer, simulation slave computer carries out asynchronous RS422 with house keeping computer and communicates, and realizes reception and the response of communication data; Can control repeat-back delay time, and the file of supported data stores.
FPGA high-speed transfer device adopts FPGA high-speed transfer card PXI-7813r.
Simulation sends DIO0-DIO2 and DGND of the remote control note number module application PXI-7813r board Connector0 of remote-control data, note number interface gate with the four-wire system remote control of house keeping computer, clock, data are connected with ground, data within 260 bytes can be sent by automatic or manual; Remote-control data can be edited flexibly, can data be read from file or preserve data to file, can automatic parity checking, can automatically produce clock, gate, data and ground four-wire system and encode by framing.
Simulation receives the gate of the telemetry receiving of telemetry and the DIO3-DIO5 of parsing module application PXI-7813r board Connector0 and house keeping computer remote measurement 1 interface, clock, data are connected, the DIO6-DIO8 of Connector0 is connected with the gate of house keeping computer remote measurement 2 interface, clock, data, the DGND port of PXI-7813r board is connected with the ground of remote measurement 1 with remote measurement 2, receives two-way telemetry simultaneously; Real time parsing and display can be carried out to the telemetry data packet of multiple type.
The 100 road DIO that simulation receives the program control command receiver module application PXI-7813r of program control command are connected with 5V pull-up transfer box, the DIO0-DIO39 of Connector1, the DIO0-DIO39 of Connector2, the DIO0-DIO19 of Connector3, receives the 100 road OC door program control signals from house keeping computer simultaneously; Can record program control command time of reception, style of writing of going forward side by side part stores and list display.
The synchronous RS422 signal of 12 road DIO simulation two-way of the digital transmission module application PXI-7813r of simulation bidirectional data transmission function passes interface with 12 ways of house keeping computer and is connected, and produces the gate of difference, clock and data-signal and is supplied to house keeping computer; Can real-time reception and display from the RS422 data of house keeping computer, and the file of supported data stores.
The whole applying virtual technical device of above-mentioned module realizes, and has good human-computer interaction interface.This emulation test system is once run, and all modules all enter concurrent working state, and can set gradually and flexible operating modules on interface.Compared with prior art, its beneficial effect is: system architecture is simple, and easy to operate, friendly interface, the construction cycle is short.When carrying out system debug and checking, only need be connected with tested software unit by the physical interface of emulation test system, by the test of different software just can be carried out to the difference configuration of this emulation test system interface, highly versatile; By just can realize fault input to the parameter modification of this emulation test system man-machine interface, dirigibility is strong.
Accompanying drawing explanation
Fig. 1 is housekeeping software emulation test system structural representation of the present invention;
Fig. 2 is the housekeeping software emulation test system structural drawing of one embodiment of the invention;
Fig. 3 realizes the housekeeping software emulation test system of one embodiment of the invention and the data flow diagram of tested software.
Embodiment
Elaborate to the present invention below in conjunction with embodiment, the present embodiment is implemented under premised on technical solution of the present invention, gives detailed embodiment, but protection scope of the present invention is not limited to following embodiment.
Existing emulation test system functionally generally comprises satellite and the rocket separation module, directly remote control module, analog quantity telemetry module, remote control note digital-to-analogue block, telemetry receiving and parsing module, program control command receiver module, GPS signaling module whole second, time reference module, CAN data simulation module, digital transmission module, serial communication modular.
Housekeeping software emulation test system of the present invention, comprise PXI industrial computer, analog/digital signal input-output unit, serial port device, CAN device, FPGA high-speed transfer device, described PXI industrial computer and analog/digital signal input-output unit, serial port device, CAN device, FPGA high-speed transfer device is connected respectively by PXI bus, it forms the hardware environment of housekeeping software emulation test system, the emulation of whole system is completed by the master control of PXI industrial computer, it is by each device work described in the total line coordination of PXI, each device is connected with house keeping computer, housekeeping software operates on house keeping computer.
When carrying out system debug and checking, only need be connected with tested software unit by the physical interface of analogue system, by the test of different software just can be carried out to the difference configuration of this system interface, highly versatile.
Example one
As shown in Figure 2, be the housekeeping software emulation test system structural drawing of one embodiment of the invention.Whole emulation test system comprises PXI industrial computer, PXI-6259 board 2, two pieces of PXI6624 boards 3, PXI-8431 serial port board 4, PXI-8464 CAN card 6 and PXI-7813rFPGA high-speed transfer card 5, these boards are connected with industrial computer by PXI bus, form the hardware environment of housekeeping software emulation test system.Each software module based on virtual instrument technique can comprise 11, be respectively: satellite and the rocket separation module 7, directly remote control module 8, analog quantity telemetry module 9, remote control note digital-to-analogue block 10, telemetry receiving and parsing module 11, program control command receiver module 12, GPS signaling module whole second 13, time reference module 14, CAN data simulation module 15, digital transmission module 16 and serial communication modular 17
One simulation sends the satellite and the rocket separation module 7 of satellite and the rocket separation signal, is located on PXI-6259 board 2;
One simulation sends the direct remote control module 8 of direct telecommand, is located on PXI-6624 board 3;
One simulation receives the analog quantity telemetry module 9 of analog quantity telesignalisation, is located on PXI-6259 board 2;
One simulation sends the remote control note digital-to-analogue block 10 of remote-control data, is located on PXI-7813r board 5;
One simulation receives telemetry receiving and the parsing module 11 of telemetry, is located on PXI-7813r board 5;
One simulation receives the program control command receiver module 12 of program control command, is located on PXI-7813r board 5;
One simulation sends the GPS signaling module whole second 13 of GPS signal whole second, is located on PXI-6624 board 3;
The time reference module 14 of one simulation transmitting time reference signal, is located on PXI-6624 board 3;
One simulated dual, to the CAN data simulation module 15 of CAN communication, is located on PXI-8464 board 6;
The digital transmission module 16 of one simulation bidirectional data transmission function, is located on PXI-7813r board 5;
One simulated dual, to the serial communication modular 17 of asynchronous serial communication, is located on PXI-8431 board 4;
Above-mentioned 11 modules operate on PXI industrial computer simultaneously, and hardware board PXI-6259, two pieces of PXI-6624, PXI-7813r, PXI-8431, PXI-8464 are arranged in order on the PXI slot of industrial computer, wherein:
Satellite and the rocket separation module 7: the AO0 port of application PXI-6259 is separated port with the satellite and the rocket of house keeping computer and is connected, and sends satellite and the rocket separation signal.
Direct remote control module 8: the ctr0-ctr7 port of application PXI-6624 board 1 is connected with the 8 direct remote control port in tunnel of house keeping computer, sends 8 road low level pulse signals.
Analog quantity telemetry module 9: the AI0-AI11 port of application PXI-6259 board is connected with the analog quantity remote measurement port of house keeping computer, receives the simulating signal of 12 tunnels from house keeping computer.
Remote control note digital-to-analogue block 10: DIO0-DIO2 and DGND of application PXI-7813r board Connector0, with the four-wire system remote control of house keeping computer note number interface gate, clock, data be connected, data within 260 bytes can be sent by automatic or manual.
Telemetry receiving and parsing module 11: apply the gate of the DIO3-DIO5 of PXI-7813r board Connector0 and remote measurement 1 interface of house keeping computer, clock, data are connected, the gate of the DIO6-DIO8 of Connector0 and remote measurement 2 interface of house keeping computer, clock, data are connected, the DGND port of PXI-7813r board is connected with the ground of remote measurement 1 with remote measurement 2, receive two-way telemetry simultaneously, and resolve in detail.
Program control command receiver module 12: the DIO0-DIO39 of the 100 road DIO(Connector1 of application PXI-7813r, the DIO0-DIO39 of Connector2, the DIO0-DIO19 of Connector3) be connected with 5V pull-up transfer box, receive the 100 road OC door program control signals from house keeping computer, the time of reception of recording instruction, style of writing of going forward side by side part stores and list display.
GPS signaling module whole second 13: ctr0 with the ctr1 port of application PXI-6624 board 2 is connected with 2 road GPS signal ports whole second of house keeping computer, the low level pulse signal of generation one fixed width per second is supplied to house keeping computer, dutycycle and the cycle of pulse signal can be set, can the delivery time of control signal.
Time reference module 14: adopt ctr2 with the ctr3 port of PXI-6624 board 2 to be connected with 2 road time reference signal ports of house keeping computer, produces the square-wave signal of two-way 5MHz to house keeping computer.
CAN data simulation module 15: application CAN0 with CAN1 of PXI-8464 is connected with the CAN A/B bus of house keeping computer, realizes the CAN functional simulation of slave computer, realizes normal CAN communication test and the fault test of tested software.
Digital transmission module 16: the DIO10-DIO21 of 12 road DIO(Connector0 of application PXI-7813r) simulate two-way synchronous RS422 signal (each 6 tunnels) and pass interface with 12 ways of house keeping computer and be connected, produce the gate of difference, clock and data-signal and be supplied to house keeping computer, and real-time reception and display are from the RS422 data of house keeping computer.
Serial communication modular 17: the 2 road RS422 interfaces of application PXI-8431 are connected with house keeping computer, simulation slave computer carries out asynchronous RS422 with house keeping computer and communicates, and realizes reception and the response of communication data.
As shown in Figure 3, be the housekeeping software emulation test system of one embodiment of the invention and the data flow diagram of tested software.Cable part between emulation test system and house keeping computer in Fig. 2 has been described out intuitively.Housekeeping software emulation test system based on virtual instrument technique can provide D/A satellite and the rocket separation signal, the direct remote signal of OC door, remote control note number four-wire system signal, GPS signal whole second, time reference signal for house keeping computer, A/D analog quantity telesignalisation, four-wire system spread spectrum telesignalisation, the OC door program control signal from house keeping computer can be received, two-way synchronous RS422 digital transmission communication can be carried out with house keeping computer, asynchronous RS422 serial communication communicates with CAN.
Should be understood that method and system as described herein can realize in hardware in a variety of manners, software, firmware, dedicated processor or their combination.Especially, the application program that a part at least of the present invention comprises programmed instruction preferably realizes.These programmed instruction are positively included in one or more program storage device and (are included but not limited to hard disk, magnetic floppy disc, RAM, ROM, CDROM etc.) inner, and can by any equipment or the machine that comprise appropriate configuration, such as a kind of universal digital computer with processor, internal memory and input/output interface performs.It should also be understood that the building block of some systems owing to describing in accompanying drawing and treatment step are preferably with software simulating, so the connection between system module (or logic flow of method step) may be different, and this depends on programming mode of the present invention.According to guidance given here, those of ordinary skill in the related art can design these and similar embodiment of the present invention.
Be only a specific embodiment of the application above, but the application is not limited thereto, the changes that any person skilled in the art can think of, all should drops in the protection domain of the application.

Claims (1)

1. the housekeeping software emulation test system based on virtual instrument technique, it is characterized in that, comprise PXI industrial computer, analog/digital signal input-output unit, serial port device, CAN device, FPGA high-speed transfer device, described PXI industrial computer and analog/digital signal input-output unit, serial port device, CAN device, FPGA high-speed transfer device is connected respectively by PXI bus, it forms the hardware environment of housekeeping software emulation test system, the emulation of whole system is completed by the master control of PXI industrial computer, it is by each device work described in the total line coordination of PXI, each device has the house keeping computer of housekeeping software to be connected with operation,
Described analog/digital signal input-output unit adopts analog/digital signal input-output card PXI-6259; It is connected that the AO0 mouth that simulation sends the satellite and the rocket separation module application PXI-6259 of satellite and the rocket separation signals is that the delivery outlet of satellite and the rocket separation signal is separated port with the house keeping computer satellite and the rocket; Can arrange flexibly the satellite and the rocket be separated before be separated after signal level, can the delivery time of control signal; The AI0-AI11 port of analog quantity telemetry module application PXI-6259 board that simulation receives analog quantity telesignalisation is connected with 12 tunnel analog quantity remote measurement ports of house keeping computer, receives the simulating signal of 12 tunnels from house keeping computer; 12 road analog signals displays can be carried out by real-time rendering figure;
Described analog/digital signal input-output unit also adopts timing and digital I/O PXI-6624; The ctr0-ctr7 port of direct remote control module application PXI-6624 board 1 that simulation sends direct telecommand is connected with the 8 direct remote control port in tunnel of house keeping computer, to send the 8 direct telecommands in tunnel, the significant level of transmission instruction can be set, instruction level width, steering order delivery time are set; Ctr0 with the ctr1 port of GPS signaling module application whole second PXI-6624 board 2 that simulation sends GPS signal whole second is connected with 2 road GPS signal ports whole second of house keeping computer, and the low level pulse signal of generation one fixed width per second is to house keeping computer; Dutycycle and the cycle of low level pulse signal can be set, can control signal delivery time; Ctr2 with the ctr3 port of time reference module application PXI-6624 board 2 of simulation transmitting time reference signal is connected with 2 road time reference signal ports of house keeping computer, produces the square-wave signal of two-way 5MHz to house keeping computer;
Described serial port device adopts serial port board PXI-8431, simulated dual is connected to the 2 road RS422 interfaces of the serial communication modular application PXI-8431 of asynchronous serial communication with house keeping computer, simulation slave computer carries out asynchronous RS422 with house keeping computer and communicates, and realizes reception and the response of communication data; Can control repeat-back delay time, and the file of supported data stores;
Described CAN device adopts CAN card PXI-8464; Simulated dual is connected to CAN0 with CAN1 of the CAN data simulation module application PXI-8464 of CAN communication and the CAN A/B bus of house keeping computer, realizes the simulation of slave computer CAN function; Reception and the transmission of CAN data can be realized, normal CAN communication test and fault test can be carried out, can CAN Data Analysis be carried out, CAN information can be replied by automatic or manual;
Described FPGA high-speed transfer device adopts FPGA high-speed transfer card PXI-7813r; Simulation sends DIO0-DIO2 and DGND of the remote control note number module application PXI-7813r board Connector0 of remote-control data, note number interface gate with the four-wire system remote control of house keeping computer, clock, data are connected with ground, data within 260 bytes can be sent by automatic or manual; Remote-control data can be edited flexibly, can data be read from file or preserve data to file, can automatic parity checking, can automatically produce clock, gate, data and ground four-wire system and encode by framing; Simulation receives the gate of the telemetry receiving of telemetry and the DIO3-DIO5 of parsing module application PXI-7813r board Connector0 and house keeping computer remote measurement 1 interface, clock, data are connected, the DIO6-DIO8 of Connector0 is connected with the gate of house keeping computer remote measurement 2 interface, clock, data, the DGND port of PXI-7813r board is connected with the ground of remote measurement 1 with remote measurement 2, receives two-way telemetry simultaneously; Real time parsing and display can be carried out to the telemetry data packet of multiple type; The 100 road DIO that simulation receives the program control command receiver module application PXI-7813r of program control command are connected with 5V pull-up transfer box, the DIO0-DIO39 of Connector1, the DIO0-DIO39 of Connector2, the DIO0-DIO19 of Connector3, receives the 100 road OC door program control signals from house keeping computer simultaneously; Can record program control command time of reception, style of writing of going forward side by side part stores and list display; The synchronous RS422 signal of 12 road DIO simulation two-way of the digital transmission module application PXI-7813r of simulation bidirectional data transmission function passes interface with 12 ways of house keeping computer and is connected, and produces the gate of difference, clock and data-signal and is supplied to house keeping computer; Can real-time reception and display from the RS422 data of house keeping computer, and the file of supported data stores.
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