CN106646506A - System and method of infrared area array search track based on high-speed swing mirror - Google Patents
System and method of infrared area array search track based on high-speed swing mirror Download PDFInfo
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- CN106646506A CN106646506A CN201611055864.9A CN201611055864A CN106646506A CN 106646506 A CN106646506 A CN 106646506A CN 201611055864 A CN201611055864 A CN 201611055864A CN 106646506 A CN106646506 A CN 106646506A
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/66—Tracking systems using electromagnetic waves other than radio waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
Abstract
The present invention discloses a system and method of infrared area array search track based on a high-speed swing mirror. The system comprises an infrared head portion, an orientation rotary table, a base, a servo control assembly and an information processing assembly, wherein the infrared head portion comprises a high-speed swing mirror assembly, an optical system and an infrared array detector which are connected through a light path in order. A high-speed swing mirror is configured at the front end of the optical system to realize the omnibearing searching and tracking of an infrared alarm device, realize constant collected airspace in the detector integral time and solve the problem of the imaging trailing caused by rotation so as to allow the device to rapidly search the clear imaging in the track process. Through adoption of the technical scheme, the problem of the neck of the application of the area array detector in the infrared search tracking system to allow the infrared search tracking system to have higher signal-to-noise ratio and search efficiency and farther detection distance.
Description
Technical field
The present invention relates to passive optical scanning imagery warning technology, more particularly to infrared surface battle array Search tracking system and side
Method.
Background technology
With using in a large number for the weapons such as precision guidance missile, shell, (commander controls car, leads battlefield ground maneuver equipment
Play car launcher, tank, panzer) protection become one of key issue for must take in modern war.In all kinds of alarms
In technology, the active technique such as radar, laser haves the shortcomings that easily to be discovered and hit by enemy, and infrared warning is passive as one kind
Technology, can accomplish find enemy while it is hidden oneself, in terms of the weapons such as precision guidance missile, shell, torpedo are tackled
With irreplaceable effect.
Currently, infrared search-track system mainly uses the linear array focus planardetector of scanning imagery, this spy
The integration imaging principle for surveying device is well suited for fixing the volume-search coverage mode of operation of angular speed.But the system integral time is scanned
Speed is limited, and generally spends the time in each pixel in several ten mu sec order.Therefore, the signal strength signal intensity of output is weaker, noise
Than relatively low.
Compare for line array, face array focal plane device possesses following three advantages：First, face array is burnt flat
The face device time of integration is longer, reaches the order of magnitude of 1～1000ms, so that face array focal plane device possesses higher heat
Sensitivity, the longer imaging time of integration, is more beneficial for two core index of limit operating distance of system signal noise ratio and system
Lifting；Secondly, the infrared search-track system working frame frequency using face array focus planardetector is high, obtains in the unit interval
Image information it is many, more adapt at a high speed and hypervelocity weapon system image information acquisition demand；Again, in resolution ratio identical
In the case of, surface array device possesses higher search efficiency.Therefore, area array detector answering in Search tracking system is studied
With technology, system signal noise ratio and search efficiency can be greatly improved, and then extend the early warning detection distance of system.
If however, being only merely that original detector array is replaced by into planar array detector, and still continue to use original system and search
Mode of operation under strand state, when turntable has enough to meet the need, scene is also being had enough to meet the need relative to planar array detector, without any indemnifying measure
In the case of, scene image cannot relative image device remains stationary, the search for being formed within the time of integration of surface array device
Image can be present serious " hangover " so that system cannot be accurately positioned to alarm target.
The content of the invention
It is an object of the invention to design it is a set of it is general, be suitable for actual operational environment based on planar array detector
Infrared search-track system.System has the function of target alarms and target following simultaneously, at the same have clearly imaging effect,
Lower false alarm rate and farther detection range.
A kind of infrared surface battle array Search tracking system that mirror is put based on high speed, including：Infrared head, azimuth rotating platform, pedestal with
And servo control division equipments and information processing component, it is characterised in that：Described infrared head and servo control division equipments, information processing
Component is arranged on azimuth rotating platform, and azimuth rotating platform is arranged on as on the pedestal of system frame；External radiation Jing puts at a high speed microscope group
Part reflexes to optical system in the form of directional light, and infra-red radiation is converged to infrared planar array detector by optical system, and face battle array is visited
Survey device and optical signalling is changed into into electric signal, and be input to information processing component, information processing component is carried out point to target information
Analysis and recognize, servo control division equipments according to the target alarms information that information processing component is provided control respectively at a high speed pendulum mirror assembly with
Azimuth rotating platform, makes system be operated under search or tracing mode.Described information processing component includes data acquisition module, letter
Number processing module and master control and display module；Electric signal is changed into data signal by the data acquisition module；At the signal
Data signal described in reason resume module, obtains target alarms information；Master control and display module are by target alarms information reporting and aobvious
Show, form instruction, and servo control division equipments are arrived in output, the data acquisition module is installed on infrared head.
Further, described infrared head puts mirror assembly, light by high speed successively to pass through successively as sequence from object space light beam
System and infrared planar array detector are constituted, and described optical system includes the first lens group, 45 ° of speculums and the second lens
Group；High speed pendulum mirror assembly include plane mirror, voice coil motor, U-shaped support, speculum shafting, high accuracy grating scale and
Mechanical stop limiter, using voice coil motor speculum is driven, and using high accuracy optical grating ruler measurement mirror corners, speculum is driven
It is dynamic to form closed-loop control, while it is spacing to speculum to design mechanical stop limiter.
Further, the azimuth rotating platform includes azimuth-drive motor, grating encoder and guide ring and azimuth rotating platform shafting, side
Position motor adopts the permanent-magnet alternating current servo motor of annular, grating encoder to adopt the absolute type encoder of hollow structure, water conservancy diversion
Ring adopts precise conductive slip ring, azimuth axle base bearing to adopt crossed roller bearing, azimuth axle supplementary bearing to adopt cylindrical roller
Bearing.
A kind of search and track method of infrared surface battle array Search tracking system based on high speed pendulum mirror that the present invention is provided, passes through
Pendulum mirror at a high speed is coordinated to realize all direction searching and the tracking of warning system using infrared planar array detector, method and step is as follows：
Step one, infrared head are quickly scanned with azimuth rotating platform, and at a high speed pendulum mirror assembly is synchronously carried out " IMC ", is controlled
Ensure speculum rotation direction in method with azimuth rotating platform direction of rotation conversely, speculum rotational angular velocity is azimuth rotating platform rotation
The half of angular speed, speculum rotates half of the angular region for optical field of view, realizes the spatial domain of collection in the detector time of integration
Constant, the information Jing guide ring output that planar array detector is detected to information processing component, system is operated under search pattern；
Step 2, information processing component are processed above- mentioned information, if it is considered to searching target, system enters tracking
Pattern, azimuth rotating platform is quickly rotated to target place azimuth, while controlling pendulum mirror assembly at a high speed carries out smart tracking；If it is considered to
Target is not searched, then system is continued to operate under search pattern.
Present invention beneficial effect compared to the prior art is：
(1) imaging " hangover " problem that planar array detector is come due to rotational band is solved so that system can searched quickly
Blur-free imaging during rope tracking, is that application of the planar array detector in infrared search-track system is laid a good foundation；(2) pass through
Application of the planar array detector in infrared search-track system, has been significantly increased the core index of system so that system has
There are higher signal to noise ratio, higher search efficiency and farther detection range.
Description of the drawings
Fig. 1 is structural representation provided in an embodiment of the present invention；
Fig. 2 is the structural representation of infrared head provided in an embodiment of the present invention；
Fig. 3 is the structural representation that high speed provided in an embodiment of the present invention puts mirror assembly, wherein：
A () is pendulum mirror assembly dextrad normal axomometric drawing at a high speed,
B () is pendulum mirror assembly left-hand normal axomometric drawing at a high speed；
Fig. 4 is azimuth rotating platform provided in an embodiment of the present invention and pendulum mirror assembly control sequential figure at a high speed；
Fig. 5 is information processing component composition schematic diagram provided in an embodiment of the present invention；
Fig. 6 is message processing flow block diagram provided in an embodiment of the present invention.
Number in figure：1 is infrared head, and 2 is azimuth rotating platform, and 3 is pedestal, and 4 is servo control division equipments, and 5 is information processing
Component；1-1 is pendulum mirror assembly at a high speed, and 1-2 is optical system, and 1-3 is planar array detector；1-1-1 is speculum, and 1-1-2 is sound
Circle motor, 1-1-3 is U-shaped support, and 1-1-4 is speculum shafting, and 1-1-5 is high accuracy grating scale, and 1-1-6 is mechanical position limitation dress
Put, 1-2-1 is the first lens group, 1-2-2 is 45 ° of speculums, and 1-2-3 is the second lens group.
Specific embodiment
Hereinafter, in conjunction with the accompanying drawings and embodiments the present invention is further elaborated.
It is provided in an embodiment of the present invention a kind of based on the infrared surface battle array search and track for putting mirror at a high speed with reference to reference to Fig. 1 and Fig. 2
System includes：Infrared head 1, azimuth rotating platform 2, pedestal 3, servo control division equipments 4 and information processing component 5.Infrared head 1 includes
High speed pendulum mirror assembly 1-1, optical system 1-2 and the planar array detector 1-3 being coupled with light path successively, wherein optical system 1-2 bag
Include the first lens group 1-2-1,45 ° of speculum 1-2-2 and the second lens group 1-2-3.Infrared head 1, servo control division equipments 4 and letter
The breath Integrated design of process assembly 5, is commonly mounted on azimuth rotating platform 2, can be around vertical axis all-directional rotation；Azimuth rotating platform 2 with
The mechanical connection of pedestal 3；Pedestal 3 as system frame, for fixing and supporting whole system.
With reference to Fig. 3, described high speed pendulum mirror assembly 1-1 includes：Speculum 1-1-1, voice coil motor 1-1-2, U-shaped support 1-
1-3, speculum shafting 1-1-4, high accuracy grating scale 1-1-5 and mechanical stop limiter 1-1-6 etc..Speculum 1-1-1 is plane
Speculum, with duralumin, hard alumin ium alloy the dynamic characteristic and reflectivity requirements of speculum are reached as substrate Jing copying surface technique.Voice coil loudspeaker voice coil electricity
The lasting thrusts of machine 1-1-2 are 27.5N, total kilometres are 15mm, sideshake is 1mm.High accuracy grating scale 1-1-5 minimum resolutions
50nm。
It is because speculum is reciprocally swinging and only contrary with system scanning direction, long-pending in speculum rotation direction
Timesharing is interior to remain a constant speed, and speed is the half of azimuth scan speed, when rotating the half that angular region is optical field of view, stares product
The spatial domain gathered during point is just constant, therefore the frequency and speed of speculum with turntable speed and Infrared Detectors when should integrate
Between close fit, azimuth rotating platform 2 refers to Fig. 4 with a high speed pendulum mirror assembly 1-1 control sequentials.
Optical system 1-2 adopts secondary catadioptric mode, and visual field is 3.6 ° × 2.88 °, focal length 157mm, F numbers 2.0, mirror
Piece surface is coated with anti-reflection film, and wave band is medium wave, total transmitance >=80%.45 ° of speculum 1-2-2 adopt K9 glass manufactures, surface
It is reflectance coating to aluminize, in infra red radiation band average reflectance >=98% of system work.
The detector 1-3 adopts medium-wave infrared detector, and its wavelength response range is 3.7 μm～4.8 μm.Detector is advised
Mould is 640 × 512, and using Stirling cycle refrigerator, pixel dimension is 15 μm, with higher sensitivity and reliability, most
The big time of integration is 4ms, and frequency acquisition 100Hz/60Hz is adjustable.
The servo control division equipments 4 are made up of electronics hardware and corresponding software, according to the mode of operation and letter of setting
The instruction new command word of composition that breath process assembly 5 is sent out, makes what pendulum mirror assembly 1-1 and azimuth rotating platform 2 at a high speed completed to require to move
Make：Under search pattern, the instruction cache of servo control division equipments 4 pendulum mirror assembly 1-1 and the close fit of azimuth rotating platform 2 are by the journey for setting
Sequence carries out comprehensive scanning；In the tracking mode, azimuth rotating platform 2 is quickly rotated to target place azimuth, while controlling at a high speed
Pendulum mirror assembly 1-1 carries out smart tracking.
With reference to Fig. 5 and Fig. 6, described information process assembly 5 is to have expanded the embedded computer of one piece of image processing board
System.Using cpci bus, mainboard has display, keyboard/mouse, hard disk from wide temperature range type double-core CPU board, ancillary equipment is reinforced
Deng.Motherboard major function is：System operatio management, target data and image show and store, the communication of system monitoring, head
Deng.One piece of image processing board is extended in bus, Image semantic classification, Objective extraction and compression of images are completed in process plate.Behaviour
Making personnel carries out operational control, and monitoring device running status on the display screen with keyboard/mouse.Data processing plate passes through light
To after the data flow of infrared head, the DSP being transferred to view data by FPGA on plate, DSP carries out image to fine interface
Process, extract and target information is transmitted to into FPGA after target, target information is sent to motherboard by FPGA by cpci bus.By
In the needs with storage image data are shown, FPGA internal images point two-way leads up to EMIF interfaces and transmits view data
The DSP on plate, separately leads up to cpci bus and sends an image to motherboard, notifies that motherboard reads image in the way of interrupting
Data.Picture frame frequency is 100Hz, is lost to prevent from interrupting, and will be transferred to motherboard after compression of images frequency reducing, the frequency after reduction
Rate is 25Hz.Decompression is completed after motherboard reception image revert to original image, then will according to azimuth rotating platform code-disc information
Image mosaic is into 360 ° of panoramic pictures and is displayed in main interface.
The present invention also provides a kind of method of work of infrared surface battle array Search tracking system based on high speed pendulum mirror.From
The infra-red radiation of scene and target still enters optical system 1-2 by pendulum mirror assembly 1-1 reflections at a high speed in the form of directional light,
Received by detector 1-3 after outgoing；Optical signalling is transformed into electric signal by detector 1-3, electric signal Jing information processing components 5
Process finally gives the warning information of target.On the one hand system is obtained after the warning information of target, is shown and is reported, on the other hand with
The form of instruction is sent to servo control division equipments 4, and by high speed pendulum mirror assembly 1-1 and azimuth rotating platform 2 corresponding action is completed；If
The target alarms information for obtaining, then into tracing mode, is otherwise continued to scan on to track target.
To sum up, a kind of infrared surface battle array Search tracking system and method based on high speed pendulum mirror provided in an embodiment of the present invention,
By putting mirror at a high speed in optical system front-end configuration to realize infrared warning equipment all direction searching with tracking.Solve face battle array to visit
Device is surveyed in infrared search-track system using the restriction sex chromosome mosaicism such as imaging " hangover " for existing, infrared reconnaissance is greatly improved
The core index of tracking system so that system has higher search efficiency, higher signal to noise ratio and farther detection range, is
The extensive application of planar array detector is laid a good foundation.
The above-mentioned description to embodiment is that this is understood that and applied for the ease of those skilled in the art
Invention.Person skilled in the art obviously easily can make various modifications to these embodiments, and here is illustrated
General Principle be applied in other embodiment without through performing creative labour.Therefore, the invention is not restricted to reality here
Apply example, those skilled in the art's announcement of the invention, the improvement made without departing from scope and modification all should
Within protection scope of the present invention.
Claims (4)
1. it is a kind of based on high speed put mirror infrared surface battle array Search tracking system, including：Infrared head (1), azimuth rotating platform (2), base
Seat (3) and servo control division equipments (4) and information processing component (5), it is characterised in that：
Described infrared head (1) with servo control division equipments (4), information processing component (5) on azimuth rotating platform (2), side
Position turntable (2) is on the pedestal (3) as system frame；External radiation Jing puts at a high speed mirror assembly (1-1) with directional light
Form reflexes to optical system (1-2), and infra-red radiation is converged to infrared planar array detector (1-3), face battle array by optical system (1-2)
Optical signalling is changed into electric signal by detector (1-3), and is input to information processing component (5), and information processing component (5) is to mesh
Mark information is analyzed and recognizes；Described information processing component (5) is including data acquisition module, signal processing module and master control
And display module；Data acquisition module is installed on infrared head, and electric signal is changed into data signal by it；At signal processing module
The data signal is managed, target alarms information is obtained；, by target alarms information reporting and display, formation refers to for master control and display module
Order, and export to servo control division equipments (4)；Servo control division equipments (4) are believed according to the target alarms that information processing component (5) is provided
Respectively mirror assembly (1-1) and azimuth rotating platform (2) are put at a high speed in control to breath, system is operated under search or tracing mode.
2. according to claim 1 a kind of based on the infrared surface battle array Search tracking system for putting mirror at a high speed, it is characterised in that：Institute
The infrared head (1) stated puts mirror assembly (1-1), optical system (1- by high speed successively to pass through successively as sequence from object space light beam
2) and infrared planar array detector (1-3) is constituted, described optical system (1-2) include the first lens group (1-2-1), 45 ° it is anti-
Penetrate mirror (1-2-2) and the second lens group (1-2-3)；High speed pendulum mirror assembly (1-1) includes plane mirror (1-1-1), sound
Circle motor (1-1-2), U-shaped support (1-1-3), speculum shafting (1-1-4), high accuracy grating scale (1-1-5) and mechanical position limitation
Device (1-1-6), using voice coil motor speculum is driven, and using high accuracy optical grating ruler measurement mirror corners, speculum is driven
It is dynamic to form closed-loop control, while it is spacing to speculum to design mechanical stop limiter.
3. according to claim 1 a kind of based on the infrared surface battle array Search tracking system for putting mirror at a high speed, it is characterised in that：Institute
Azimuth rotating platform (2) is stated including azimuth-drive motor, grating encoder and guide ring and azimuth rotating platform shafting, azimuth-drive motor adopts annulus
The permanent-magnet alternating current servo motor of shape, grating encoder adopts the absolute type encoder of hollow structure, guide ring to adopt precise conductive
Slip ring, azimuth axle base bearing adopts crossed roller bearing, azimuth axle supplementary bearing to adopt cylinder roller bearing.
4. it is a kind of based on described in claim 1 it is a kind of based on high speed pendulum mirror infrared surface battle array Search tracking system search and track
Method, it is characterised in that search and track method and step is as follows：
Step one, infrared head (1) are quickly scanned with azimuth rotating platform (2), and at a high speed pendulum mirror assembly (1-1) synchronously carries out " mending as moving
Repay ", ensure speculum rotation direction with azimuth rotating platform direction of rotation conversely, speculum rotational angular velocity is orientation in control method
The half of turntable rotational angular velocity, speculum rotates half of the angular region for optical field of view, realizes being adopted in the detector time of integration
The spatial domain of collection is constant, and the information Jing guide ring output that planar array detector (1-3) is detected is to information processing component (5), system work
Make under search pattern；
Step 2, information processing component (5) are processed above- mentioned information, if it is considered to searching target, system enters tracking
Pattern, azimuth rotating platform (2) is quickly rotated to target place azimuth, while controlling pendulum mirror assembly (1-1) at a high speed carries out smart tracking；
If it is considered to not searching target, then system is continued to operate under search pattern.
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| CN201611055864.9A CN106646506A (en) | 2016-11-25 | 2016-11-25 | System and method of infrared area array search track based on high-speed swing mirror |
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| CN108037499A (en) * | 2017-10-30 | 2018-05-15 | 中国人民解放军92232部队 | A kind of photoelectricity millimeter wave three-dimensional search tracks of device and method |
| CN111246099A (en) * | 2020-01-20 | 2020-06-05 | 中国科学院微电子研究所 | Active closed-loop control high-speed target synchronous follow-shooting device and method |
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| CN113534427A (en) * | 2021-07-14 | 2021-10-22 | 西安粼粼光电科技有限公司 | Optical early warning tracking platform based on quick reflector array and working method |
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| CN108037499B (en) * | 2017-10-30 | 2020-06-16 | 中国人民解放军92232部队 | Photoelectric millimeter wave three-coordinate searching and tracking device and method |
| CN111246099A (en) * | 2020-01-20 | 2020-06-05 | 中国科学院微电子研究所 | Active closed-loop control high-speed target synchronous follow-shooting device and method |
| CN111246099B (en) * | 2020-01-20 | 2021-04-13 | 中国科学院微电子研究所 | Active closed-loop control high-speed target synchronous follow-shooting device and method |
| CN112526506A (en) * | 2020-11-17 | 2021-03-19 | 中国科学院长春光学精密机械与物理研究所 | Target searching and tracking method and target tracking device |
| CN112526506B (en) * | 2020-11-17 | 2024-03-01 | 中国科学院长春光学精密机械与物理研究所 | Target searching and tracking method and target tracking device |
| CN113645417A (en) * | 2021-06-28 | 2021-11-12 | 湖南宏动光电有限公司 | Staring type focal plane device rapid scanning method and system |
| CN113534427A (en) * | 2021-07-14 | 2021-10-22 | 西安粼粼光电科技有限公司 | Optical early warning tracking platform based on quick reflector array and working method |
| CN113676538A (en) * | 2021-08-19 | 2021-11-19 | 湖南翰坤实业有限公司 | Virus monitoring equipment, method and system based on Internet of things |
| CN113676538B (en) * | 2021-08-19 | 2023-10-17 | 湖南翰坤实业有限公司 | Virus monitoring equipment, method and system based on Internet of things |
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