CN109539983A - A kind of integral type multiple target founds target test device and test method - Google Patents
A kind of integral type multiple target founds target test device and test method Download PDFInfo
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- CN109539983A CN109539983A CN201811438472.XA CN201811438472A CN109539983A CN 109539983 A CN109539983 A CN 109539983A CN 201811438472 A CN201811438472 A CN 201811438472A CN 109539983 A CN109539983 A CN 109539983A
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- 238000010998 test method Methods 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 256
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- 238000012545 processing Methods 0.000 claims description 14
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- 239000012634 fragment Substances 0.000 abstract description 3
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- 238000013467 fragmentation Methods 0.000 description 5
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
Abstract
The present invention discloses a kind of integral type multiple target and founds target test device and test method, test device includes high speed face array CCD target, detect frame and host computer, detection lower portion is provided with the first detection light curtain, second detection light curtain, third detects light curtain, 4th detection light curtain and the 5th detection light curtain, high speed face array CCD target is mounted on the bottom of detection frame, host computer is connected by cable with high speed face array CCD target, the field of view center of high speed face array CCD target is located at the centre of the second detection light curtain and the 4th detection light curtain, and its visual field mutually intersects with the second detection light curtain and the 4th detection light curtain.The present invention can precisely match cognization goes out high speed running fire target or weapons and ammunitions explosion generates Fragment Group, and being capable of the parameters such as high-acruracy survey multiple target heading, speed and distribution.
Description
Technical field
The present invention relates to photoelectricity test field, in particular to a kind of integral type multiple target founds target test device and test side
Method.
Background technique
In weapon testing field, the parameters high-acruracy survey such as speed, the distribution of multiple target is weapon verification and target Damage
The Important Theoretic Foundation of measures of effectiveness.Due to diversity and randomness of the multiple target in flight course, deposited when passing through detecting area
Be overlapped and the case where reach same detection light curtain simultaneously, at this time test macro can not accurate match cognization multiple target, cause
Can not high-acruracy survey multiple target parameter, the especially test of the closely fried fragmentation target in space, since instant of detonation generates fragmentation
Target scatterance is larger, and size, quality, speed and heading are not quite similar, and makes the match cognization of fragment of warhead group very
Difficulty leads to not measure nearly fried fragmentation to the damage effects of extraterrestrial target, therefore to passing through accurate of detecting area multiple target
There is high research significance with identification, provide effective theoretical foundation for weapon development and target Damage appraisement system.
Currently, the measurement of target component have more light curtains cross test macro, line array CCD cross test macro harmony target test
The test devices such as system.More light curtains test macro that crosses mainly uses based on multiple skies or multiple light curtain targets, can obtain
To single goal speed and location parameter, when multiple target passes through detecting area, test philosophy is difficult to its match cognization；CCD crosses
Test macro crosses to form detection target surface using multiple CCD cameras, it is difficult to control the friendship of multiple face registrations and multiple test surfaces
Remittance angle can not match multiple target in test in high precision；Sound target measures meter to target position using acoustic matrix sensor
Calculate, when multiple target simultaneously target when, sensor can not differentiate the information of multiple target, and sound target pole in field work from signal
Vulnerable to environmental disturbances, therefore equally it is unable to satisfy accurate matched requirement.
Summary of the invention
In view of the above problem of the existing technology, meet multi-target multi-parameter the purpose of the present invention is to provide a kind of
Device and method with identification test request precisely can not block the more of coincidence by match cognization to solve target component measuring device
The problem of fragmentation target of the closely fried generation of target, especially bullet.
To achieve the goals above, the present invention provides a kind of vertical target test device of integral type multiple target comprising high speed surface
Battle array CCD target, detection frame and host computer, detection lower portion are provided with the first detection light curtain, the second detection light curtain, third detection
Light curtain, the 4th detection light curtain and the 5th detection light curtain, high speed face array CCD target are mounted on the bottom of detection frame, and host computer passes through
Cable is connected with high speed face array CCD target, and the field of view center of high speed face array CCD target is located at the second detection light curtain and the 4th detection light
The centre of curtain, and its visual field intersects with the second detection light curtain and the 4th detection light curtain.
In some embodiments, detection frame includes being parallel to each other and the first frame and the second frame with horizontal plane
Frame, the first frame and the second frame are connected by frame connecting rod, and the first frame includes the first successively end to end cylinder,
Two cylinders, third cylinder and the 4th cylinder, are arranged at least one laser line generator and photoelectric detection unit on the 4th cylinder, and line swashs
Light device is configured to transmitting fan-shaped laser beam and forms the first detection light curtain, the first reflecting mirror is arranged on the second cylinder, first is anti-
Mirror is penetrated to be configured to be reflected the first detection light curtain and form the second detection light curtain.
In some embodiments, the wavelength of laser line generator transmitting laser is 650nm, and laser line generator emits fan-shaped laser beam
Launch angle is 90 °.
In some embodiments, photoelectric detection unit includes the adaptive tune that ecto-entad is sequentially arranged on the 4th cylinder
Circuit board, complex array photodetector, slit and optical lens are saved, the setting of complex array photodetector is in detection frame
Portion is simultaneously mounted on automatic adjusument circuit board, and optical lens is configured to Absorption Line laser energy and converges to complex array photoelectricity
On the photosurface of detector.
In some embodiments, the second frame include the 5th successively end to end cylinder, the 6th cylinder, the 7th cylinder and
8th cylinder, is equipped with the second reflecting mirror on the 8th cylinder, and the second mirror arrangement is to be reflected the second detection light curtain simultaneously
It forms third and detects light curtain, third reflecting mirror and spectroscope are equipped on the 6th cylinder, third mirror arrangement is to visit third
It surveys light curtain to carry out reflection and form the 4th detection light curtain and the 5th detection light curtain by spectroscope, the 4th detection light curtain and first is visited
Light curtain is surveyed to be parallel to each other and vertical with the trajectory line of airbound target.
In some embodiments, high speed face array CCD target is fixed on the bottom of detection frame by connecting rod, fixed block and screw
Portion center, wherein connecting rod is arranged between the first frame and the second frame and connects the 4th cylinder and the 8th cylinder,
Fixed block is fixed by screws in connecting rod, and high speed face array CCD target is mounted in connecting rod by fixed block.
In some embodiments, base angle there are four setting at four angles of the bottom outside of detection frame, base angle passes through spiral shell
Column is connected with the first frame or the second frame, and knob is equipped on stud, and knob is configured to by adjusting stud and base angle
Between position, thus adjust detection frame height.
In some embodiments, high speed face array CCD target includes shell, and optical lens is equipped on the outside of the upper surface of shell,
It is configured to the laser beam for absorbing and obtaining extraneous injection, and electrical box is equipped on the inside of the upper surface of shell, is set in electrical box
There is area array CCD camera, be located at the vertical lower of optical lens, be configured to the image sequence of acquisition airbound target, in face battle array
CCD camera is equipped with focal plane towards the side of optical lens.
In some embodiments, it is additionally provided in electrical box from zoom modules, includes motor, motor and face from zoom modules
Array CCD camera is connected, and is additionally provided with power supply module, signal acquisition unit and image processing unit in the inside of shell, signal is adopted
Collection unit includes collection of simulant signal card and signal processing module, is configured to acquire airbound target respectively by the first detection light
The signal waveform of curtain and third detection light curtain output, and it is transferred to host computer, image processing unit is configured to adopt optical lens
Collect and is pre-processed by the image sequence information that area array CCD camera obtains.
To achieve the goals above, the present invention also provides a kind of integral type multiple targets to found target test method, uses above-mentioned
Test device, method include the following steps,
(1) when multiple target sequentially passes through each detection light curtain, the multiple target signal output waveform of signal acquisition unit is read
With signal amplitude V (j)；Read high speed face array CCD camera acquired image sequence and corresponding moment value tc1~tcl, will
Image sequence occurs that value is corresponding at the time of value and signal acquisition unit export each signal at the time of the image of bright target, in conjunction with mesh
Successive consistency of the mark by the first detection light curtain and third detection light curtain, obtains corresponding moment value, and moment value is each
Value t at the time of target passes through the second detection light curtain and the 4th detection light curtain21~t2k、t41~t4k, value is every at the time of residual signal
Value t at the time of a target passes through the first detection light curtain and third detection light curtain11~t1k、t31~t3k, wherein j=1,2 Λ, k, l
=1,2 Λ；
(2) signal amplitude V (j) is acquired according to signal acquisition unit, determines whether multiple target while reaches same detection light
Curtain, if all output signal amplitudes are similar, each echo signal rising edge time sequence is multiple target by detecting area
Sequencing；If there is the amplitude of the Amplitude Ration simple target detection output signal of certain moment photoelectric detection unit output signal
Greatly, then confirm that the case where multiple targets are overlapped occurs in the moment, need to carry out match cognization to coincidence target；
(3) bright coordinates of targets (u in acquired image is listedi,vi), wherein i=1,2, Λ, image coordinate system uov be with
The pixel center point for acquiring image is origin, and the bright coordinates of targets by the second detection light curtain is (u2i,v2i), it is visited by the 4th
The bright coordinates of targets for surveying light curtain is (u4i,v4i), remaining bright target is coordinate (u when target passes through the 5th detection light curtain5i,
v5i) and moment value t51~t5k；Passing through first according to the second detection light curtain and the 4th detection light curtain distance S and multiple target
Detect light curtain and value t at the time of the 4th detection light curtain11~t1kWith t41~t4k, calculate the corresponding velocity amplitude V of each targeta,
In, Va=S/t1i-t4i, i=1,2, Λ；Wherein, S=(v4i-v2i) D/r, target actual size is D, shared image pixel number
For r, the total pixel number of high speed face array CCD image planes is N × N；
(4) according to theoretical velocity VaAnd bright target is by value t at the time of the first, second, third and fourth detection light curtain11~t1k、
t21~t2k、t31~t3k、t41~t4k, estimate multiple targets from the first detection light curtain to the flying distance d of the second detection light curtain1i=
(t2i-t1i)·Va, estimate flying distance d of multiple targets by the second detection light curtain and the 4th detection light curtain2i=(t4i-
t2i)·Va, estimate flying distance d of multiple targets by the first detection light curtain and the 4th detection light curtain3i=(t4i-t1i)·Va,
Wherein, i=1,2 Λ；Calculating flying distance of all targets by the first detection light curtain to the second detection light curtain is ((D/r)
N-(D/r)·v1i)；Calculating flying distance of all targets by the second detection light curtain to the 4th detection light curtain is ((D/r) N-
(D/r)·v2i)；Calculating flying distance of all targets by the first detection light curtain to the 4th detection light curtain is ((D/r) 2
N-(D/r)·v2i), comparison estimation flying distance and all targets reach each practical flight distance for detecting light curtain, according to close
Principle matches signal corresponding to each target；
(5) angle for assuming the second detection light curtain and the first detection light curtain is α, and third detects light curtain and the 4th detection light curtain
Angle be β, the angle of the 4th detection light curtain and the 5th detection light curtain is ε, matches corresponding signal and passes through high speed face array CCD
The azimuth γ of the available each target of image of camera acquisition1iWith pitch angle γ2i, and each correspondence matched
Spatial position coordinate (x of the target in predetermined target surfacei,yi,zi), wherein i=1,2 Λ, the first detection light curtain and predetermined target surface
Distance is L, and height when target is by the first detection light curtain is h1, target is t by value at the time of the second detection light curtain21~
t2k, target is t by value at the time of third detection light curtain31~t3k, and target is with face in required spatial position coordinate system xyz
Array CCD camera visual field central point is origin foundation, and the calculation of the flight parameter of airbound target is as follows:
γ1=arctan [[S/ [(t4k-t1k)·(t2k-t1k)·tanα]-S/[(t3k-t1k)·(t3k-t4k)·tan
β]]/S]
γ2=arctan ((u2i-u1i)/(v2i-v1i))
xi=(D/r) u1i·L/(h1·tanα)
yi=(D/r) v1i+L-S/(t3k-t1k)·(t2k-t1k)
zi=S/ [(t3k-t1k)·(t2k-t1k)·tanα]+tanγ1i·L
(6) if some target is primary by only occurring in image sequence when the second detection light curtain and the 4th detection light curtain,
Illustrate that the target have passed through the intersection of the second detection light curtain with the 4th detection light curtain, needs through theoretical velocity VaCombining target
Flying distance d of the target by the first detection light curtain to the 5th detection light curtain is estimated by value at the time of the 5th detection light curtain4i
=(t5i-t1i)·Va, calculating flying distance of the target by the second detection light curtain to the 5th detection light curtain is ((D/r) v5i-
(D/r)·v2i), signal corresponding to the target is matched also according to proximity, resolves the mesh using the method for step (5)
Target parameter.
Compared with prior art, the beneficial effects of the present invention are: precisely high speed running fire target or force can be gone out by match cognization
The Fragment Group that the explosion of device ammunition generates, and being capable of the parameters such as high-acruracy survey multiple target heading, speed and distribution.
It should be appreciated that foregoing general description and it is described in detail below be merely exemplary with it is illustrative, rather than use
In the limitation disclosure.
Present specification provides the various realizations or exemplary general introduction of technology described in the disclosure, is not disclosed skill
The comprehensive disclosure of the full scope of art or all features.
Detailed description of the invention
In the attached drawing being not drawn necessarily to scale, identical appended drawing reference can describe similar in different views
Component.Same reference numerals with letter suffix or different letter suffix can indicate the different instances of similar component.Attached drawing
Generally through citing rather than the mode of limitation shows various embodiments, and reinstates with specification and claims one
It is illustrated in the disclosed embodiments.In due course, make to be referred to identical reference in all the appended drawings same
One or similar part.Such embodiment is illustrative, and is not intended as the exhaustive or exclusive of the present apparatus or method
Embodiment.
Fig. 1 is that the integral type multiple target of the embodiment of the present invention founds the arrangement schematic diagram of target test device；
Fig. 2 is that the integral type multiple target of the embodiment of the present invention founds the structural schematic diagram of target test device；
Fig. 3 is that the integral type multiple target of the embodiment of the present invention founds the cross-sectional view of target test device；
Fig. 4 is that the integral type multiple target of the embodiment of the present invention founds the side perspective schematic diagram of target test device；
Fig. 5 is that the integral type multiple target of the embodiment of the present invention founds the side schematic view of target test device；
Fig. 6 is the structure that the integral type multiple target of the embodiment of the present invention founds the high speed face array CCD target in target test device
Schematic diagram；
Fig. 7 is that the integral type multiple target of the embodiment of the present invention founds the light curtain of target test method and crosses schematic diagram；
Fig. 8 is that the integral type multiple target of the embodiment of the present invention founds the schematic diagram that target test method is tested.
Fig. 9 is that the integral type multiple target of the embodiment of the present invention founds target test device high speed area array CCD acquisition image
Image coordinate system schematic diagram；
Appended drawing reference:
1- high speed face array CCD target；2- host computer；3- detects frame；4- target；The first reflecting mirror of 5-；6- laser line generator；7-
Second reflecting mirror；The first aviation plug of 8-；The second aviation plug of 9-；10- connecting rod；11- third reflecting mirror；12- stud；13-
Base angle；14- knob；The first cylinder of 15-；The second cylinder of 16-；17- optical lens；18- complex array photodetector；19- is narrow
Seam；20- third cylinder；The horizontal bubble of 21-；22- optical lens；23- motor；24- photosurface；25- area array CCD camera；26- tune
Focal plane；27- shell；28- power supply module；29- automatic adjusument circuit board；The 4th cylinder of 30-；31- fixed block；32- the 5th
Cylinder；The 6th cylinder of 33-；The 7th cylinder of 34-；The 8th cylinder of 35-；36- screw；37- spectroscope；38- receives slit；39-
One transmite slit；The second transmite slit of 40-；41- image processing unit；42- signal acquisition unit；The predetermined target surface of 43-.
Specific embodiment
In order to enable the purposes, technical schemes and advantages of the embodiment of the present disclosure are clearer, below in conjunction with disclosure reality
The technical solution of the embodiment of the present disclosure is clearly and completely described in the attached drawing for applying example.Obviously, described embodiment is
A part of this disclosure embodiment, instead of all the embodiments.Based on described embodiment of the disclosure, this field is common
Technical staff's every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the model of disclosure protection
It encloses.
Unless otherwise defined, the technical term or scientific term that the disclosure uses should be tool in disclosure fields
The ordinary meaning for thering is the personage of general technical ability to be understood." first ", " second " used in the disclosure and similar word are simultaneously
Any sequence, quantity or importance are not indicated, and are used only to distinguish different component parts." comprising " or "comprising" etc.
Similar word means that the element or object before the word occur covers the element or object for appearing in the word presented hereinafter
And its it is equivalent, and it is not excluded for other elements or object.The similar word such as " connection " or " connected " is not limited to physics
Or mechanical connection, but may include electrical connection, it is either direct or indirectly."upper", "lower",
"left", "right" etc. is only used for indicating relative positional relationship, and after the absolute position for being described object changes, then the relative position is closed
System may also correspondingly change.
In order to keep the following explanation of the embodiment of the present disclosure to understand and concise, known function and known portion is omitted in the disclosure
The detailed description of part.
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.
A kind of vertical target test device of integral type multiple target, is used for the test that the multi-thread laser of single side array camera crosses, such as Fig. 1
Shown, it includes high speed face array CCD target 1, detection frame 3 and upper that integral type multiple target that the present embodiment is related to, which founds target test device,
Machine 2, wherein detection frame 3 is arranged in the flight path of airbound target, and detection frame 3 is internally provided with the first detection light curtain
M1, the second detection light curtain M2, third detection light curtain M3, the 4th detection light curtain M4 and the 5th detection light curtain M5；High speed face array CCD target
1 is mounted on the bottom of detection frame 3, and host computer 2 is connected by cable with high speed face array CCD target 1, wherein high speed face array CCD
The field of view center of target 1 is located at the centre of the second detection light curtain M2 and the 4th detection light curtain M4, and its visual field and the second detection light
The detection of curtain M2 and the 4th light curtain M4 intersects, and high speed face array CCD target 1 is configured to for acquired image being transferred to after treatment
Host computer 2, host computer are configured to analyze treated image and obtain multiple target parameter.
Integral type multiple target that the present embodiment is related to stand target test device arrangement and structure further as shown in Fig. 2,
Integral type multiple target is stood in target test device, and detection frame 3 is spliced by cylinder, and specifically, detection frame 3 includes the first frame
Frame and the second frame, wherein the first frame and the second frame are parallel to each other and arrange respectively with horizontal plane, the first frame
It is connected with the second frame by frame connecting rod；First frame includes the first cylinder 15, the second cylinder 16, third cylinder 20 and the
Four cylinders 30, the first cylinder 15, the second cylinder 16, third cylinder 20 and the 4th cylinder 30 successively end to end formation rectangular frame
Structure, i.e. the first frame, wherein the first cylinder 15 and third cylinder 20 are mutually perpendicular to horizontal plane, superposed second column
Body 16 and the 4th cylinder 30 positioned at bottom are parallel to each other with horizontal plane, wherein the second cylinder 16 and the 4th cylinder 30 are five ribs
Rod structure.
The cross-sectional view that Fig. 3 shows detection frame 3 is arranged at least one on the 4th cylinder 30 in conjunction with shown in Fig. 1 to Fig. 3
The arrangement of a high-power laser line generator 6 and photoelectric detection unit, laser line generator 6 and photoelectric detection unit corresponds to each other, as
It is preferred that three laser line generators 6 can equably be arranged along its length in the 4th cylinder 30, wherein laser line generator 6 is configured to send out
It penetrates fan-shaped laser beam and forms the first detection light curtain M1, thus as the first test surface.It should be noted that laser line generator 6 is adopted
With high power line laser, wavelength is preferably 650nm, and each laser line generator 6 can emit fan-shaped laser beam, and launch angle is excellent
90 ° are selected as, to form the biggish line laser test surface of area, the detection viewing field of photoelectric detection unit can be completely covered.
First reflecting mirror 5 is set on the second cylinder 16, receives slit 38 and the first transmite slit 39, wherein first is anti-
Mirror 5 is penetrated to be configured to be reflected the first detection light curtain M1 and form the second detection light curtain M2, as the second test surface, in this way,
The laser beam issued from laser line generator 6, that is, the first detection light curtain M1 are received instead by receiving slit 38 by the first reflecting mirror 5
It penetrates and passes through the transmitting of the first transmite slit 39 and form the second detection light curtain M2.
With continued reference to shown in Fig. 3, photoelectric detection unit includes automatic adjusument circuit board 29, complex array photodetector
18, slit 19 and optical lens 17, wherein automatic adjusument circuit board 29, complex array photodetector 18, slit 19 and light
It learns the ecto-entad on the 4th cylinder 30 of lens 17 to be sequentially arranged, specifically, the setting of complex array photodetector 18 is detecting
3 inside of frame is simultaneously mounted on automatic adjusument circuit board 29, wherein optical lens 17 is configured to Absorption Line laser energy and converges
On the photosurface for gathering complex array photodetector 18；In this way, laser beam passes through optical lens 17 and passes through photodetection list
The slit 19 of member, finally converges on the photosurface of complex array photodetector 18, and whole process passes through automatic adjusument electricity
The control of road plate 29 and adjusting.
Referring to Fig. 2 and Fig. 3, the second frame includes the 5th cylinder 32, the 6th cylinder 33, the 7th cylinder 34 and the 8th cylinder
35, the 5th cylinder 32, the 6th cylinder 33, the 7th cylinder 34 and the 8th cylinder 35 successively end to end formation rectangular frame structure,
That is the second frame；Wherein, the 5th cylinder 32 and the 7th cylinder 34 are mutually perpendicular to horizontal plane, superposed 6th cylinder, 33 He
The 8th cylinder 35 positioned at bottom is parallel to each other with horizontal plane, wherein the 6th cylinder 33 and the 8th cylinder 35 are pentagonal prism structure.
It is equipped with the second reflecting mirror 7 on the 8th cylinder 35, receives slit 38 and the second transmite slit 40, wherein second is anti-
Mirror 7 is penetrated to be configured to be reflected the second detection light curtain M2 and form third detection light curtain M3, as third test surface, in this way,
Second detection light curtain M2 after receiving slit 38 by the second reflecting mirror 7 by being reflected and forming third detection light curtain M3；In the 6th column
Body 33 is equipped with third reflecting mirror 11, receives slit 38 and spectroscope 37, wherein third reflecting mirror 11 is configured to detect third
Light curtain M3 reflect and is formed the 4th detection light curtain M4 and the 5th detection light curtain M5 by spectroscope 37, as the 4th test surface
With the 5th test surface, is emitted after light curtain M3 passes through reception slit 38 by third reflecting mirror 11 in this way, third detects and pass through light splitting
Mirror 37 forms the 4th detection light curtain M4 and the 5th detection light curtain M5；Wherein, the 4th detection light curtain M4 and the first detection light curtain M1 phase
It is mutually parallel and vertical with the trajectory line of airbound target.In addition, being equipped with control switch and power switch on the 5th cylinder 32.
Further, it can be seen from the above, further combined with Fig. 3, Fig. 4 and Fig. 5, the setting of high speed face array CCD target 1 is in detection frame
The bottom of frame 3, specifically, high speed face array CCD target 1 are fixed on detection frame 3 by connecting rod 10, fixed block 31 and screw 36
Bottom centre position；Further, connecting rod 10 is arranged between the first frame and the second frame and connects the 4th cylinder 30
With the 8th cylinder 35, fixed block 31 is fixed in connecting rod 10 by screw 36, and high speed face array CCD target 1 is pacified by fixed block 31
In connecting rod 10.Preferably, the first aviation plug 8 is arranged in connecting rod 10.
In addition, as shown in figure 3, setting at four angles of the bottom outside of detection frame 3 there are four base angle 13, base angle 13 is matched
It is set to support detection frame 3 in the horizontal plane, in this way, detection frame 3 can be placed in the horizontal plane by four base angles 13；Bottom
Angle 13 is connected by having threaded stud 12 with the first frame or the second frame, and adjustable rotation is equipped on stud 12
Button 14, knob 14 are configured to by adjusting the position between stud 12 and pedestal 13, to adjust the height of detection frame 3.
The structure of high speed face array CCD target 1 as shown in fig. 6, in the present embodiment, high speed face array CCD target 1 includes shell 27,
As a preference, shell 27 can be rectangular parallelepiped structure, it is also possible to the structure of other forms；Outside the upper surface of shell 27
Side is equipped with optical lens 22, is configured to absorb and obtain the laser beam of extraneous injection；It is equipped on the inside of the upper surface of shell 27
Electrical box is equipped with area array CCD camera 25 in electrical box, is located at the vertical lower of optical lens 22, is configured to acquisition flight
The image sequence of target；It is equipped with focal plane 26 towards the side of optical lens 22 in area array CCD camera 25, in this way, passing through light
Camera lens 22 is learned to absorb and obtain the energy of laser beam and can converge on the photosurface 24 of area array CCD camera 25.When flight mesh
When mark is by each detection light curtain, bright target can be become in the image sequence that area array CCD camera 25 acquires, according to same target
The consistency of movement velocity changing rule, multiple target have by the first detection light curtain M1 with third detection light curtain M3 successively consistent
Property, in conjunction with the space constraint relationship of the second detection light curtain M2 and the 4th detection light curtain M4, the progress of multiple detection light curtains can be passed through
With identification, the measuring accuracy of multiple target parameter is improved.
Further, it is additionally provided in electrical box from zoom modules, includes motor 23, motor 23 and face battle array from zoom modules
CCD camera 25 is connected, be configured to when some time that area array CCD camera 25 acquires image sequence carve existing multiple target be overlapped or
In the case where blocking, change focal plane 26, enable and the defocus in front is blocked into fragmentation seriously blur when imaging, thus real
Existing transparent effect achievees the purpose that differentiate the multiple targets of identification.
Power supply module 28, signal acquisition unit 42 and image processing unit 41 are additionally provided in the inside of shell 27, wherein are supplied
Electric module 28 is configured to signal acquisition unit 42, image processing unit 41 is powered, preferably, power supply module 28 can also configure
For the power supply of laser line generator 6；Signal acquisition unit 42 includes collection of simulant signal card and signal processing module, is configured to adopt respectively
Collect airbound target by the signal waveform of the first detection light curtain M1 and third detection light curtain M3 output, and is transferred to host computer 2；Figure
As processing unit 41 is configured to acquire optical lens 22 and is carried out in advance by the image sequence information that area array CCD camera 25 obtains
Reason；In this way, area array CCD camera 25 can acquire the image sequence in the visual field of high speed face array CCD target 1 simultaneously by optical lens 22
Image sequence information is transferred to image processing unit 41 and carries out image procossing.Horizontal bubble is additionally provided on 27 upper surface of shell
21, it is configured to be cooperated with base angle 13 to adjust the levelness of detection frame 3；The second boat is additionally provided in the side of shell 27
Blind plug 9, the second aviation plug 9 are configured to the processing result of image processing unit 41 being transferred to host computer 2, and host computer 2 is most
The parameters such as multiple target parameter, such as heading, flying speed and distribution are obtained by resolving afterwards.
The embodiment of the present invention founds target test device by using above-mentioned integral type multiple target, can also provide one kind one
Body formula multiple target is found target test method and is included the following steps in conjunction with shown in Fig. 7-9,
(1) when multiple airbound targets 4 sequentially pass through the first detection light curtain M1, the second detection light curtain M2, third detection light curtain
M3, the 4th detection light curtain M4 and the 5th detect each detection light curtain in light curtain M5, and the multiple target for reading signal acquisition unit 42 is defeated
Signal waveform and signal amplitude V (j) out；At the time of reading 25 acquired image sequence of high speed face array CCD camera and correspond to
Value tc1~tcl, at the time of is there is the image of bright target in image sequence value and signal acquisition unit 42 export each signal when
Quarter value corresponds to, and in conjunction with airbound target 4 by the successive consistency of the first detection light curtain M1 and third detection light curtain M3, obtains and corresponds to
At the time of value, and moment value is value t at the time of each target 4 passes through the second detection light curtain M2 and the 4th detection light curtain M421~
t2k、t41~t4k, at the time of value is that each target passes through the first detection light curtain M1 and third detects light curtain M3 at the time of residual signal
Value t11~t1k、t31~t3k, wherein j=1,2 Λ, k, l=1,2 Λ；
(2) signal amplitude V (j) is acquired according to signal acquisition unit 42, determines whether multiple target while reaches same detection
Light curtain, if all output signal amplitudes are similar, each echo signal rising edge time sequence is more airbound targets 4 by visiting
Survey the sequencing in area；If there is the Amplitude Ration simple target detection output signal of certain moment photoelectric detection unit output signal
Amplitude is big, then confirms that the case where multiple airbound targets 4 are overlapped occurs in the moment, and needs to carry out match cognization to coincidence target；
(3) bright coordinates of targets (u in acquired image is listedi,vi), wherein i=1,2, Λ, image coordinate system uov be with
The pixel center point for acquiring image is origin, and the bright coordinates of targets by the second detection light curtain M2 is (u2i,v2i), by the 4th
The bright coordinates of targets for detecting light curtain M4 is (u4i,v4i), remaining bright target is coordinate when target passes through the 5th detection light curtain M5
(u5i,v5i) and moment value t51~t5k；According to the second detection light curtain M2 and the 4th detection light curtain M4 distance S and multiple flights
Value t at the time of by the first detection light curtain with the 4th detection light curtain of target 411~t1kWith t41~t4k, calculate each 4 phase of target
The velocity amplitude V answereda, wherein Va=S/t1i-t4i, i=1,2, Λ；Wherein, S=(v4i-v2i) D/r, wherein airbound target 4
Actual size is D, and shared image pixel number is r, and the total pixel number of high speed face array CCD image planes is N × N；
(4) according to theoretical velocity VaAnd bright target is by value t at the time of the first, second, third and fourth detection light curtain M1-M411~
t1k、t21~t2k、t31~t3k、t41~t4k, estimate that multiple airbound targets 4 detect light curtain M2's from the first detection light curtain M1 to second
Flying distance d1i=(t2i-t1i)·Va, estimate that multiple targets 4 fly by the second detection light curtain M2 and the 4th detection light curtain M4
Row distance d2i=(t4i-t2i)·Va, estimate multiple airbound targets 4 by the first detection light curtain M1's and the 4th detection light curtain M4
Flying distance d3i=(t4i-t1i)·Va, wherein i=1,2 Λ；All airbound targets 4 are calculated to arrive by the first detection light curtain M1
The flying distance of second detection light curtain M2 is ((D/r) N- (D/r) v1i)；All targets 4 are calculated by the second detection light curtain
The flying distance that M2 to the 4th detects light curtain M4 is ((D/r) N- (D/r) v2i)；All airbound targets 4 are calculated by first
Detecting light curtain M1 to the 4th and detecting the flying distance of light curtain M4 is ((D/r) 2N- (D/r) v2i), comparison estimation flight away from
From with all airbound targets 4 reach it is each detection light curtain practical flight with a distance from, according to proximity match each target 4 pair
The signal answered；
(5) angle for assuming the second detection light curtain M2 and the first detection light curtain M1 is α, and third detects light curtain M3 and the 4th and visits
The angle for surveying light curtain M4 is β, and the angle that the 4th detection light curtain M4 and the 5th detects light curtain M5 is ε, and it is logical to match corresponding signal
Cross the azimuth γ of the available each airbound target 4 of image of the acquisition of high speed area array CCD camera 251iWith pitch angle γ2i, and
Spatial position coordinate (x of each corresponding airbound target 4 matched in predetermined target surface 43i,yi,zi), wherein i=1,2
Λ, the first detection light curtain M1 are L at a distance from predetermined target surface 43, and height when target is by the first detection light curtain M1 is h1, mesh
Mark is t by value at the time of the second detection light curtain M221~t2k, target is t by value at the time of third detection light curtain M331~t3k,
And target in required spatial position coordinate system xyz is established by origin of 25 field of view center point of area array CCD camera, airbound target 4
Flight parameter calculation it is as follows:
γ1=arctan [[S/ [(t4k-t1k)·(t2k-t1k)·tanα]-S/[(t3k-t1k)·(t3k-t4k)·tan
β]]/S]
γ2=arctan ((u2i-u1i)/(v2i-v1i))
xi=(D/r) u1i·L/(h1·tanα)
yi=(D/r) v1i+L-S/(t3k-t1k)·(t2k-t1k)
zi=S/ [(t3k-t1k)·(t2k-t1k)·tanα]+tanγ1i·L
(6) if when some airbound target 4 detects light curtain M4 by the second detection light curtain M2 and the 4th in image sequence only
Occur once illustrating the intersection that the target 4 have passed through the detection of the second detection light curtain M2 and the 4th light curtain M4, needs to pass through theory
Speed VaCombining target estimates the airbound target 4 by the first detection light curtain M1 to the by value at the time of the 5th detection light curtain M5
The flying distance d of five detection light curtain M54i=(t5i-t1i)·Va, airbound target 4 is calculated by the second detection light curtain M2 to the 5th
The flying distance for detecting light curtain M5 is ((D/r) v5i-(D/r)·v2i), it is right that target institute is matched also according to proximity
The signal answered resolves the parameter of the airbound target 4 using the method for step (5).
In addition, range includes any and all based on this public affairs although exemplary embodiment has been described herein
That opens has equivalent element, modification, omission, combination (for example, scheme that various embodiments are intersected), reorganization or the implementation changed
Example.Element in claims will be construed broadly as based on the language used in claim, however it is not limited in this explanation
Described example, example are to be interpreted as nonexcludability in book or during the implementation of the application.Therefore, this specification and
Example is intended to be to be considered only as example, and real scope and spirit are by following following claims and the full scope of its equivalent institute
Instruction.
Above description is intended to illustrative rather than restrictive.For example, above-mentioned example (or one or more side
Case) it can be in combination with one another.Such as other embodiments can be used when reading foregoing description in those of ordinary skill in the art.
In addition, various features can be grouped together to simplify the disclosure in above-mentioned specific embodiment.This should not be construed as
A kind of not claimed disclosed feature is necessary intention for any claim.On the contrary, subject of the present invention can be with
Less than whole features of specific disclosed embodiment.To which following claims is incorporated to herein as example or embodiment
In specific embodiment, wherein each claim is independently as individual embodiment, and consider that these embodiments can be with
It is combined with each other with various combinations or arrangement.The scope of the present invention should refer to appended claims and these claims are entitled
The full scope of equivalent form determines.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of integral type multiple target founds target test device comprising high speed face array CCD target, detection frame and host computer, it is described
Detection lower portion is provided with the first detection light curtain, the second detection light curtain, third detection light curtain, the 4th detection light curtain and the 5th and visits
Light curtain is surveyed, the high speed face array CCD target is mounted on the bottom of the detection frame, and the host computer passes through cable and the high speed
Area array CCD target is connected, and the field of view center of the high speed face array CCD target is located at the second detection light curtain and the 4th detection
The centre of light curtain, and its visual field intersects with the second detection light curtain and the 4th detection light curtain.
2. test device according to claim 1, which is characterized in that the detection frame include be parallel to each other and with level
Face vertical the first frame and the second frame, first frame is connected with second frame by frame connecting rod, described
First frame includes the first successively end to end cylinder, the second cylinder, third cylinder and the 4th cylinder, in the 4th cylinder
Upper at least one laser line generator of setting and photoelectric detection unit, the laser line generator are configured to transmitting fan-shaped laser beam and form institute
The first detection light curtain is stated, the first reflecting mirror is set on second cylinder, first mirror arrangement is by described first
Detection light curtain is reflected and forms the second detection light curtain.
3. test device according to claim 2, which is characterized in that the wavelength of laser line generator transmitting laser is
The launch angle of 650nm, the laser line generator transmitting fan-shaped laser beam are 90 °.
4. test device according to claim 2, which is characterized in that the photoelectric detection unit is included in the 4th column
Automatic adjusument circuit board, complex array photodetector, slit and the optical lens that ecto-entad is sequentially arranged on body, it is described
Complex array photodetector is arranged in the detection lower portion and is mounted on the automatic adjusument circuit board, the light
Lens are learned to be configured to Absorption Line laser energy and converge on the photosurface of the complex array photodetector.
5. test device according to claim 2, which is characterized in that second frame includes successively end to end
Five cylinders, the 6th cylinder, the 7th cylinder and the 8th cylinder are equipped with the second reflecting mirror on the 8th cylinder, and described second is anti-
It penetrates mirror to be configured to that the second detection light curtain is reflected to and formed third detection light curtain, the is equipped on the 6th cylinder
Three reflecting mirrors and spectroscope, the third mirror arrangement are reflect and by the light splitting by third detection light curtain
Mirror forms the 4th detection light curtain and the 5th detection light curtain, and the 4th detection light curtain and the first detection light curtain are parallel to each other simultaneously
And it is vertical with the trajectory line of airbound target.
6. test device according to claim 5, which is characterized in that the high speed face array CCD target passes through connecting rod, fixation
Block and screw be fixed on it is described detection frame bottom centre position, wherein the connecting rod be arranged in first frame and
Between second frame and the 4th cylinder and the 8th cylinder are connected, the fixed block is fixed on institute by the screw
It states in connecting rod, the high speed face array CCD target is mounted in the connecting rod by the fixed block.
7. test device according to claim 2, which is characterized in that at four angles of the bottom outside of the detection frame
Place is set there are four base angle, and the base angle is connected by stud with first frame or second frame, in the spiral shell
Column is equipped with knob, and the knob is configured to by adjusting the position between the stud and the base angle, thus described in adjusting
Detect the height of frame.
8. test device described in optional one in -7 according to claim 1, which is characterized in that the high speed face array CCD target packet
Shell is included, optical lens is equipped on the outside of the upper surface of the shell, is configured to absorb and obtain the laser beam of extraneous injection,
It is equipped with electrical box on the inside of the upper surface of the shell, area array CCD camera is equipped in the electrical box, is located at the optics
The vertical lower of camera lens, is configured to the image sequence of acquisition airbound target, it is described in area array CCD camera towards the optical frames
The side of head is equipped with focal plane.
9. test device according to claim 8, which is characterized in that it is additionally provided in the electrical box from zoom modules,
Described from zoom modules includes motor, and the motor is connected with the area array CCD camera, is additionally provided in the inside of the shell
Power supply module, signal acquisition unit and image processing unit, the signal acquisition unit include collection of simulant signal card and signal
Processing module is configured to acquire what airbound target was exported by the first detection light curtain and third detection light curtain respectively
Signal waveform, and it is transferred to the host computer, described image processing unit is configured to acquire the optical lens and by described
The image sequence information that area array CCD camera obtains is pre-processed.
10. a kind of integral type multiple target founds target test method, test device as claimed in claim 9, the method packet are used
Include following steps,
(1) when multiple target sequentially passes through each detection light curtain, the multiple target signal output waveform and letter of signal acquisition unit are read
Number amplitude V (j)；Read high speed face array CCD camera acquired image sequence and corresponding moment value tc1~tcl, by image
Sequence occurs that value is corresponding at the time of value and signal acquisition unit export each signal at the time of the image of bright target, and combining target passes through
The successive consistency for crossing the first detection light curtain and third detection light curtain obtains corresponding moment value, and moment value is each target
Value t at the time of across the second detection light curtain and the 4th detection light curtain21~t2k、t41~t4k, value is each mesh at the time of residual signal
Value t at the time of mark is across the first detection light curtain and third detection light curtain11~t1k、t31~t3k, wherein j=1,2 Λ, k, l=1,2
Λ；
(2) signal amplitude V (j) is acquired according to signal acquisition unit, determines whether multiple target while reaches same detection light curtain, if
All output signal amplitudes are similar, then each echo signal rising edge time sequence is multiple target by the successive suitable of detecting area
Sequence；If the amplitude for the Amplitude Ration simple target detection output signal of certain moment photoelectric detection unit output signal occur is big, really
Recognize the case where multiple targets of moment appearance are overlapped, needs to carry out match cognization to coincidence target；
(3) bright coordinates of targets (u in acquired image is listedi,vi), wherein i=1,2, Λ, image coordinate system uov is to acquire
The pixel center point of image is origin, and the bright coordinates of targets by the second detection light curtain is (u2i,v2i), by the 4th detection light
The bright coordinates of targets of curtain is (u4i,v4i), remaining bright target is coordinate (u when target passes through the 5th detection light curtain5i,v5i) with
Moment value t51~t5k；According to the second detection light curtain with the 4th detection light curtain distance S and multiple target by the first detection light
Curtain and value t at the time of the 4th detection light curtain11~t1kWith t41~t4k, calculate the corresponding velocity amplitude V of each targeta, wherein Va=
S/t1i-t4i, i=1,2, Λ；Wherein, S=(v4i-v2i) D/r, target actual size is D, and shared image pixel number is r, high
The total pixel number of fast area array CCD image planes is N × N；
(4) according to theoretical velocity VaAnd bright target is by value t at the time of the first, second, third and fourth detection light curtain11~t1k、t21~
t2k、t31~t3k、t41~t4k, estimate multiple targets from the first detection light curtain to the flying distance d of the second detection light curtain1i=(t2i-
t1i)·Va, estimate flying distance d of multiple targets by the second detection light curtain and the 4th detection light curtain2i=(t4i-t2i)·Va,
Estimate flying distance d of multiple targets by the first detection light curtain and the 4th detection light curtain3i=(t4i-t1i)·Va, wherein i=
1,2Λ；Calculating flying distance of all targets by the first detection light curtain to the second detection light curtain is ((D/r) N- (D/r)
v1i)；Calculating flying distance of all targets by the second detection light curtain to the 4th detection light curtain is ((D/r) N- (D/r)
v2i)；Calculating flying distance of all targets by the first detection light curtain to the 4th detection light curtain is ((D/r) 2N- (D/
r)·v2i), comparison estimation flying distance and all targets reach each practical flight distance for detecting light curtain, according to proximity
Allot signal corresponding to each target；
(5) angle for assuming the second detection light curtain and the first detection light curtain is α, and third detects the folder of light curtain with the 4th detection light curtain
Angle is β, and the angle of the 4th detection light curtain and the 5th detection light curtain is ε, matches corresponding signal and passes through high speed face array CCD camera
The azimuth γ of the available each target of the image of acquisition1iWith pitch angle γ2i, and each corresponding target matched
In the spatial position coordinate (x of predetermined target surfacei,yi,zi), wherein i=1,2 Λ, the first detection light curtain is at a distance from predetermined target surface
For L, height when target is by the first detection light curtain is h1, target is t by value at the time of the second detection light curtain21~t2k, mesh
Mark is t by value at the time of third detection light curtain31~t3k, and target is with area array CCD in required spatial position coordinate system xyz
Viewing field of camera central point is origin foundation, and the calculation of the flight parameter of airbound target is as follows:
γ1=arctan [[S/ [(t4k-t1k)·(t2k-t1k)·tanα]-S/[(t3k-t1k)·(t3k-t4k)·tanβ]]/S]
γ2=arctan ((u2i-u1i)/(v2i-v1i))
xi=(D/r) u1i·L/(h1·tanα)
yi=(D/r) v1i+L-S/(t3k-t1k)·(t2k-t1k)
zi=S/ [(t3k-t1k)·(t2k-t1k)·tanα]+tanγ1i·L
(6) if only occurring primary, explanation when some target detects light curtain with the 4th by the second detection light curtain in image sequence
The target have passed through the intersection of the second detection light curtain with the 4th detection light curtain, need through theoretical velocity VaCombining target passes through
Value estimates flying distance d of the target by the first detection light curtain to the 5th detection light curtain at the time of 5th detection light curtain4i=
(t5i-t1i)·Va, calculating flying distance of the target by the second detection light curtain to the 5th detection light curtain is ((D/r) v5i-(D/
r)·v2i), signal corresponding to the target is matched also according to proximity, resolves the target using the method for step (5)
Parameter.
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Application publication date: 20190329 Assignee: Xi'an chuangweijia Communication Technology Co.,Ltd. Assignor: XI'AN TECHNOLOGICAL University Contract record no.: X2023980044990 Denomination of invention: An integrated multi target vertical target testing device and testing method Granted publication date: 20210406 License type: Common License Record date: 20231030 |