CN102385007A - Data acquiring and analyzing system - Google Patents

Data acquiring and analyzing system Download PDF

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Publication number
CN102385007A
CN102385007A CN201110330112XA CN201110330112A CN102385007A CN 102385007 A CN102385007 A CN 102385007A CN 201110330112X A CN201110330112X A CN 201110330112XA CN 201110330112 A CN201110330112 A CN 201110330112A CN 102385007 A CN102385007 A CN 102385007A
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signal
data acquisition
analysis system
voltage
target seeker
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CN201110330112XA
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王江
王伟
林德福
范军芳
程振轩
徐平
王辉
段鑫尧
路宇龙
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王伟
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Priority to CN201110330112XA priority Critical patent/CN102385007A/en
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Abstract

The invention discloses a data acquiring and analyzing system, comprising a signal source, a signal conditioning box, a signal acquisition unit and a signal output unit. The data acquiring and analyzing system can not only compare complicated signal characters and signal time sequence, but also rapidly and accurately analyze the low-frequency noise at a seeker in real time. For the data acquiring and analyzing system, the cost is low, the volume is small, the integrated level is high, the data acquisition quantity is large, the low-frequency noise analysis on the seeker is accurate, and the application range is wide.

Description

Data acquisition and analysis system
Technical field
The present invention relates to the data acquisition and analysis system that data acquisition and analysis system is particularly related to test target seeker low-frequency noise.
Background technology
Target seeker has low-frequency noise, and the target seeker low-frequency noise can cause the swing of bullet very big to the bullet that adopts target seeker, some in addition target seeker occurs and bump frame, even fall to play phenomenon.
At present, also there is not a kind of special a kind of specialized equipment of testing the target seeker low-frequency noise.A lot of multichannel data acquisition systems are arranged, but the data acquisition system (DAS) to the target seeker signal testing is but quite few specially at home and abroad, does not also have and the data acquisition and analysis system of real-time analysis target seeker low-frequency noise is at present domestic.Existing data acquisition system (DAS) just can realize comparing the function of simple signal characteristic and sequential, can't make analysis to target seeker low-frequency noise phenomenon.
Summary of the invention
In order to overcome the deficiency of prior art, the present invention provides a kind of data acquisition and analysis system, and this system not only can contrast complicated signal characteristic and signal sequence, can also fast in real time accurately analyze the target seeker low-frequency noise.
The object of the invention provides a kind of data acquisition and analysis system, comprises signal source, signal condition box, signal gathering unit and signal output unit,
The signal source effect is for signal input is provided to data acquisition and analysis system, and it also is a measured piece simultaneously, and signal source comprises the target seeker test board;
The effect of signal condition box is that the voltage of signal source output is handled and guaranteed that signal is undistorted; Simultaneously can adjust with filtering voltage anti-interference; The signal condition box is also referred to as the signal condition module; Comprise containing hardware trigger circuit, voltage-regulating circuit and filtering immunity module that between hardware trigger circuit and the voltage-regulating circuit be and connect, hardware trigger circuit and voltage-regulating circuit are contacted respectively and between the filtering immunity module;
The effect of signal acquisition module is the signal that acquired signal conditioning box has been adjusted; The data in real time that collects is shown; And attitude information resolves and shows with graphic form on the bullet that these data-signals are characterized, and preserves into the MS-word form, comprises signal acquiring board and PC computing machine; Signal acquiring board is installed in the PC computing machine, and data acquisition card is connected with pci card groove on the PC computing machine through pci bus;
Signal output unit will be preserved into the guiding head output signal of MS-word form and the body attitude information printout of resolving, and said signal output unit comprises printer;
Wherein signal source is connected with the signal condition box through signal wire, the signal of measured piece from signal source with analog signal transmission to signal condition box;
The signal condition box is through the transmission line and the signals collecting card connection of 37D mouth, and the signal after the conditioning transfers to data acquisition card from the signal condition module through the pci bus transmission manner;
Connect through USB interface between PC computing machine and the printer.
Data acquisition and analysis system provided by the invention not only can contrast complicated signal characteristic and signal sequence, can also fast in real time accurately analyze the target seeker low-frequency noise.
Description of drawings
Fig. 1 is the structural representation according to data acquisition and analysis system of the present invention.
Fig. 2 is according to the conditioning box structural representation in the data acquisition and analysis system optimal way of the present invention.
Fig. 3 is according to the circuit diagram that sets out of the hardware in the data acquisition and analysis system optimal way of the present invention.
Fig. 4 illustrates the target seeker signals collecting output display image that obtains through this data acquisition and analysis system of the present invention.
Fig. 5 illustrates earth axes pitching, the effective rudder corner curve of driftage that system according to the invention obtains.
Fig. 6 illustrates earth axes pitching, the driftage body attitude angle curve that system according to the invention obtains.
Embodiment
Below in conjunction with accompanying drawing, through embodiment the present invention is elaborated, characteristics of the present invention and advantage are along with these explanations will become more clear, clear and definite.
The present invention provides a kind of data acquisition and analysis system, comprises signal source, signal condition box, signal gathering unit and signal output unit,
Signal source comprises the target seeker test board, target seeker signal generator for example, and the process of the main simulated laser target seeker of this equipment tracking target, its effect is for the signal input is provided to data acquisition and analysis system, it also is a measured piece simultaneously;
The effect of signal condition box is that the voltage of signal source output is handled and guaranteed that signal is undistorted; Simultaneously can adjust with filtering voltage anti-interference; The signal condition box is also referred to as the signal condition module; Comprise containing hardware trigger circuit module, voltage-regulating circuit module and filtering immunity module that between trigger circuit module and the voltage regulator module be and connect, trigger circuit module and voltage regulator module are contacted respectively and between the filtering immunity module;
The effect of signal acquisition module is to gather the signal that the signal condition box has been adjusted; The data in real time that collects is shown; And attitude information resolves and shows with graphic form on the bullet that these data-signals are characterized, and preserves into the MS-word form, comprises signal acquiring board and PC computing machine; Signal acquiring board is installed in the PC computing machine, and signal acquiring board is connected with pci card groove on the PC computing machine through pci bus;
Signal output unit comprises printer, with the guiding head output signal of preserving into the MS-word form and the body attitude information printout of resolving;
Wherein signal source is connected with the signal condition box through signal wire, the signal of measured piece from signal source with analog signal transmission to signal condition box;
The signal condition box is through the transmission line and the signals collecting card connection of 37D mouth, and the signal after the conditioning transfers to data acquisition card from the signal condition module through the pci bus transmission manner;
Connect through USB interface between PC computing machine and the printer.
In data acquisition and analysis system according to the present invention, all output signals produce by the motion of target seeker on test board, comprise signal on the bullets such as target seeker, gyro status signal.
In preferred embodiment; Signal source is transferred to the signal condition box through 16 signal wires with the signal of measured piece; Data transfer mode between signal source and the signal condition box is 16 tunnel analog signal transmission, and to be voltage transfer wide square-wave signal, double polarity sine modulated square wave signal and the single square wave of negative polarity at ± 15V with the interior wide amplitude modulation square-wave signal of positive polarity step d. c. voltage signal, positive polarity, bipolar pulse to simulating signal.
In data acquisition and analysis system according to the present invention, the signal condition box is used to nurse one's health from the next signal of target seeker transmission, and signal condition has following effect: (1) provides the hardware trigger function; Promptly when hardware level during by high step-down, begin to gather the target seeker signal, the two states of hardware trigger through voltage switches to be realized; When initial system did not power on, trigger end voltage was 0, i.e. low level; Become high voltage 5V Deng the back voltage that powers on; Just begin this moment to gather, the zero time point of acquisition system work just, this function is realized by the hardware trigger circuit; (2) voltage of adjustment acquired signal; Because there is several roads bipolar signal voltage all to surpass ± 10V in the middle of the guiding head output signal; And the magnitude of voltage of data acquisition card is generally 5V or 10V, thus need to adjust on the hardware, and through the caused error of conditioning box compensation adjustment signal.The signal condition module has also guaranteed the impedance matching of system simultaneously.
The signal condition box mainly comprises hardware trigger circuit module, voltage-regulating circuit module, filtering antijamming circuit module; The hardware trigger circuit is set trigger condition; Promptly gather initial zeros; Guaranteed impedance matching simultaneously, voltage-regulating circuit will be gathered voltage range and adjust in the scope of collection plate collection.The filtering immunity module to the interference that signal brought, the burr that will gather handle.
In the signal condition box, be concurrency relation between hardware trigger circuit and the voltage-regulating circuit, do not have interconnective relation, and hardware trigger circuit and voltage-regulating circuit are all and be serial relation between the filtering immunity module.In data acquisition and analysis system according to the present invention, each road acquired signal all independently has voltage regulator module and filtering immunity module, does not crosstalk between each road with crosslinked.The reliability of whole system is guaranteed in such design
In preferred embodiment; In the signal condition box, comprise 16 road signal lines altogether; Wherein a route road comprises hardware trigger circuit and filtering immunity module, and wherein the hardware trigger circuit module is connected with signal source through signal wire, and the filtering immunity module links to each other with data acquisition card through the transmission line of 37D mouth; Signal from signal source imports the hardware trigger circuit into through 1 signal wire, and the transmission line of after the filtering immunity module, passing through the 37D mouth is to data acquisition card; Other 15 road signals comprise voltage-regulating circuit and filtering immunity module separately respectively; Wherein voltage-regulating circuit links to each other with signal source through signal wire; The filtering immunity module links to each other with data acquisition card through the transmission line of 37D mouth; Signal from signal source imports the voltage-regulating circuit in above-mentioned 15 road signal lines into through 15 signal wires, and the transmission line of after the filtering immunity module, passing through the 37D mouth is to data acquisition card, and is as shown in Figure 2.
This preferred embodiment in; The process of signal condition mainly is that the signal amplitude that collects is reduced by half, and phase delay is handled less than 0.02ms, and the reason of handling like this is because the collection magnitude of voltage of capture card is ± 10V; And the original signal magnitude of voltage of gathering can arrive ± 12V; Therefore need voltage be adjusted,, carry out the filtering anti-interference process simultaneously in order not disturb original signal.
Therefore; The signal condition box carries out certain processing with the signal voltage of signal source output; And guarantee the true and accurate property of signal, simultaneously can with signal voltage carry out certain adjustment and filtering anti-interference, such as on circuit, voltage magnitude being reduced by half; The processes voltage value doubles in the PC computing machine then, promptly reducible real signal.
In data acquisition and analysis system according to the present invention, signal acquisition module comprises the signal acquiring board that is installed in the PC computing machine, and signal acquiring board is connected with pci card groove on the PC computing machine through pci bus.Pci bus is the abbreviation of PeripheralComponent Interconnect (peripheral component interconnect standard); It is a most popular interface in the present PC; All have this slot on nearly all mainboard product; Pci bus is a kind of high-performance local bus, for satisfy between peripheral hardware and peripheral hardware and main frame between high speed data transfer and putting forward.Pci bus is 32 or 64 local buss of a kind of synchronous independent processor, and maximum operation frequency is 33MHZ, and peak velocity is 132MB/s in the time of 32, is 264MB/s in the time of 64, and bus specification is issued by PCISIG.Pci bus has following distinguishing feature: high speed property, and plug and play property, reliability, complicacy, configuration is automatically shared and is interrupted, and favorable expandability is multiplexed, strictly regulates.
In data acquisition and analysis system according to the present invention; Signal acquisition module is mainly through the signal acquiring board image data; Through PC computer installation sampling rate; And with the data presentation of gathering on the interface, analyze the signal that collects simultaneously, can measure the signal that collects such as signal amplitude, the deration of signal and carry out the signal convergent-divergent; Through analyzing acquired signal, obtain target seeker precession conditional curve, earth axes pitching, the effective rudder corner curve of driftage and earth axes pitching and driftage body attitude angle curve etc.Data acquisition card and signals collecting program have guaranteed target seeker real-time acquisition, demonstration, measurement, sequential contrast etc.Signal analysis program carries out according to the main signal of gathering of target seeker obtaining target seeker low-frequency noise curve of output after the processing such as projection.
In signal processing and analysis program according to data acquisition and analysis system of the present invention; About the signals collecting program part; The sampling rate that signals collecting adopts is 2k, and promptly point of 0.5ms can satisfy the collection of 0-32 passage simultaneously; In native system, relatively flexibly, can set according to actual needs; Show, test and print for signal; Display interface is divided into control group, test data display field, resolution chart display field; Can through test, can draw signal collected amplitude and width through using mouse and keyboard convergent-divergent figure; And with the data of being gathered and through the data storage analyzed in hard disk, perhaps graphic printing is come out; About the signal analysis program part, it mainly is the signal that collects to be projected in ground coordinate from wherein main tracer signal through roll angle fasten, thereby obtains effective rudder corner, the body attitude angle curve of pitching and driftage.
In data acquisition and analysis system according to the present invention, signal output unit is printed the output pattern of word version rapidly, so that engineering staff check, analyze, file, normally whether the function of checking measured piece fast in order to staff and metrology and measurement personnel.Said signal output unit comprises printer.
Connect through USB interface between PC computing machine and the printer.USB (Universal Serial Bus) USB is by DEC, IBM, and Inter, Microsoft, companies such as NEC are for simplifying a kind of free standardization connector of the interconnected joint research exploitation between PC and the peripheral hardware.USB supports four kinds of basic data-transmission modes: control transmission, transmission and transmission of data blocks are interrupted in transmission when waiting.The principal feature of USB interface is plug and play, and is hot-swappable.
In the instantiation according to data acquisition and analysis system of the present invention, target seeker can adopt the laser semiactive homer, can be the target seeker series that is used in terminal-guided shell, the urgent bullet of terminal guidance, laser-guided bomb etc.; The target seeker test board adopts the target seeker signal generator; The hardware trigger circuit is as shown in Figure 3; It is the standard isolation modular converter module (Beijing Art Technology Development Co., Ltd. is adjusted into 40V with its output voltage range) of S1105 that voltage-regulating circuit and filtering immunity module adopt model; Data acquisition card uses the PCI capture card based on pci bus, and its model is PCI8602, and the PC computing machine adopts and grinds magnificent industrial computer IPC610, and printer adopts HPLaserJet P4515n.
Operation process according to data acquisition and analysis system of the present invention is following: start working in each ingredient of data acquisition and analysis system waiting signal source that all powers on, a trigger switch is arranged when signal source is started working, start trigger switch after; System on the whole PC computing machine begins to gather each road signal of target seeker output, and shows in real time, wait the target seeker power cut-off after; The staff shows the observation signal correctness through the system on the PC computing machine; If after the baseband signal judgement is errorless, analyze acquired signal, obtain target seeker precession conditional curve; The earth axes pitching; Effective rudder corner curve of going off course, and earth axes pitching, driftage body attitude angle curve.To scheme printout greatly in order to inspection and file through printer then.
The target seeker signals collecting output display image that obtains through this data acquisition and analysis system is shown among Fig. 4; The earth axes pitching, the effective rudder corner curve of driftage that come out according to the target seeker signal Processing are shown among Fig. 5, and the earth axes pitching, the driftage body attitude angle curve that come out according to the target seeker signal Processing are shown among Fig. 6.
Data acquisition and analysis system cost according to the present invention is low, and volume is little, and integrated level is high, and the data acquisition amount is big, is suitable for collection analysis target seeker low-frequency noise.In the fundamental voltage characteristic of each road basic output signal of testing tested target seeker, also can realize quick storage, show and the analysis of target seeker low-frequency noise; And the composition of realizing is simple, easy to operate, powerful use; Print fast, improve the efficient of factory acceptance to a great extent.
More than through exemplary embodiment the present invention is specified; These embodiments and should not be construed as limitation of the present invention but; It will be apparent to those skilled in the art that; Under the situation that does not depart from spirit and scope of the invention, can carry out multiple improvement, replacement or modification to technical scheme of the present invention and embodiment thereof, these all should fall in the protection domain of the present invention of claims qualification

Claims (8)

1. a data acquisition and analysis system is characterized in that, said data acquisition and analysis system comprises signal source, signal condition box, signal gathering unit and signal output unit,
Signal source comprises the target seeker test board, and effect is for signal input is provided to data acquisition and analysis system, and it also is to detect measured piece simultaneously;
The effect of signal condition box is that the signal voltage of signal source output is handled and guaranteed that signal is undistorted; Simultaneously can adjust with filtering signal voltage anti-interference; The signal condition box comprises and contains hardware trigger circuit, voltage-regulating circuit and filtering immunity module; Between hardware trigger circuit and the voltage-regulating circuit be and connect that hardware trigger circuit and voltage-regulating circuit are contacted respectively and between the filtering immunity module;
The effect of signal acquisition module is to gather the signal of having adjusted through the signal condition box; The data in real time that collects is shown; And attitude information resolves and shows with graphic form on the bullet that these data-signals are characterized, and preserves into the MS-word form, and said signal acquisition module comprises signal acquiring board and PC computing machine; Signal acquiring board is installed in the PC computing machine, and signal acquiring board is connected with pci card groove on the PC computing machine through pci bus;
Signal output unit comprises printer, with the guiding head output signal of preserving into the MS-word form and the body attitude information printout of resolving;
Wherein signal source is connected with the signal condition box through signal wire, the signal of measured piece from signal source with analog signal transmission to signal condition box;
The signal that signal acquiring board collects transfers to the PC computing machine through pci bus;
Connect through USB interface between PC computing machine and the printer.
2. data acquisition and analysis system according to claim 1 is characterized in that, said target seeker test board is the target seeker signal generator.
3. data acquisition and analysis system according to claim 1 and 2 is characterized in that, the hardware trigger circuit is connected with signal source through signal wire respectively with voltage-regulating circuit, and the filtering immunity module links to each other with data acquisition card through the transmission line of 37D mouth.
4. data acquisition and analysis system according to claim 1 is characterized in that, signal source is connected with the signal condition box through 16 signal wires.
5. data acquisition and analysis system according to claim 4; It is characterized in that; In the signal condition box, comprise 16 road signal lines altogether; Wherein a route road comprises hardware trigger circuit and filtering immunity module, and wherein the hardware trigger circuit module is connected with signal source through 1 signal wire, and the filtering immunity module links to each other with data acquisition card through the transmission line of 37D mouth; Other 15 road signals comprise voltage-regulating circuit and filtering immunity module separately respectively, and wherein voltage-regulating circuit links to each other with signal source through 1 signal wire respectively, and the filtering immunity module links to each other with data acquisition card through the transmission line of 37D mouth.
6. data acquisition and analysis system according to claim 1 is characterized in that the hardware trigger circuit provides the hardware trigger function, promptly when hardware level during by high step-down, begins to gather the target seeker signal.
7. data acquisition and analysis system according to claim 1 is characterized in that, through PC computer installation sampling rate, and with the data presentation of gathering on the interface, analyze acquired signal simultaneously.
8. be used for collection analysis target seeker low-frequency noise according to each described data acquisition and analysis system among the claim 1-5.
CN201110330112XA 2011-10-26 2011-10-26 Data acquiring and analyzing system Pending CN102385007A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107388904A (en) * 2017-06-13 2017-11-24 河北汉光重工有限责任公司 Laser signal resolves and servo control integrated processing system
CN107613260A (en) * 2017-09-29 2018-01-19 北京航天福道高技术股份有限公司 A kind of IMAQ analysis system and method
CN110750061A (en) * 2019-10-18 2020-02-04 天津津航计算技术研究所 Method for enhancing transmission reliability of discrete signal

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Publication number Priority date Publication date Assignee Title
CN85107388A (en) * 1985-09-30 1987-04-15 中国科学院声学研究所 The acoustic method of bullet trajectory
CN101436100A (en) * 2008-12-04 2009-05-20 上海大学 Brain-electrical signal detection system and detection method for brain and machine interface
CN101566845A (en) * 2009-06-04 2009-10-28 西南科技大学 Multi-channel synchronous vibration data collecting system
CN101586930A (en) * 2009-06-20 2009-11-25 中北大学 High-speed data acquisition processing real-time retransmission device
CN202372579U (en) * 2011-10-26 2012-08-08 王伟 Data collecting and analyzing system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85107388A (en) * 1985-09-30 1987-04-15 中国科学院声学研究所 The acoustic method of bullet trajectory
CN101436100A (en) * 2008-12-04 2009-05-20 上海大学 Brain-electrical signal detection system and detection method for brain and machine interface
CN101566845A (en) * 2009-06-04 2009-10-28 西南科技大学 Multi-channel synchronous vibration data collecting system
CN101586930A (en) * 2009-06-20 2009-11-25 中北大学 High-speed data acquisition processing real-time retransmission device
CN202372579U (en) * 2011-10-26 2012-08-08 王伟 Data collecting and analyzing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107388904A (en) * 2017-06-13 2017-11-24 河北汉光重工有限责任公司 Laser signal resolves and servo control integrated processing system
CN107613260A (en) * 2017-09-29 2018-01-19 北京航天福道高技术股份有限公司 A kind of IMAQ analysis system and method
CN110750061A (en) * 2019-10-18 2020-02-04 天津津航计算技术研究所 Method for enhancing transmission reliability of discrete signal

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Application publication date: 20120321