CN108445697A - A kind of target simulator based on Digital Micromirror Device - Google Patents
A kind of target simulator based on Digital Micromirror Device Download PDFInfo
- Publication number
- CN108445697A CN108445697A CN201810200516.9A CN201810200516A CN108445697A CN 108445697 A CN108445697 A CN 108445697A CN 201810200516 A CN201810200516 A CN 201810200516A CN 108445697 A CN108445697 A CN 108445697A
- Authority
- CN
- China
- Prior art keywords
- dmd
- micromirror device
- digital micromirror
- image
- target simulator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
- G03B21/008—Projectors using an electronic spatial light modulator but not peculiar thereto using micromirror devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
Abstract
The invention discloses a kind of target simulator based on Digital Micromirror Device, which includes：PC control software, driving circuit, Digital Micromirror Device, lamp optical system, projection objective, wherein：PC control software is communicated by USB1.1 with drive control circuit, and order and image are sent；Driving circuit controls digital micro-mirror chip operation；Digital Micromirror Device overturns modulation incident light by micro mirror machinery and reaches imaging effect；Lamp optical system provides light source for digital micro-mirror chip；Projection objective is for projecting analog image by test system.Target simulator proposed by the present invention is small, light-weight, and flexibility ratio is high, high resolution, and gray level is high, and frame frequency is high, supports visible light wave range gray scale and coloured image simulation, can be applied to a variety of HWIL simulation experiment scenes.
Description
Technical field
The present invention relates to visible light target simulation field, especially a kind of target simulator based on Digital Micromirror Device.
Background technology
Usually to there are three types of some device ground experimental test procedures：The first is image filling type test；It is for second
Field testing on the spot；The third is to carry out semi-hardware type simulation test using target simulator.
Since image filling type evaluation test is difficult the scene of accurate simulation in actual use, and can not simultaneously test light
The performance of the modules such as system, and field testing appliance arrangement is complicated on the spot, somewhat expensive, debugging is difficult.Therefore we need
A kind of target simulator based on HWIL simulation.
Based on the target simulator of traditional display modes since output carries out in an analog fashion, need to carry out D/A conversions, from
Body will produce noise.Target simulator optical system based on liquid crystal light valve is complicated, and transmissive display can make brightness limited.Closely
The emerging target simulator black and white contrast based on LCOS is bad over year, three-sheet type LCOS light engine volume is larger in big visual field
Show that cost is higher under scene.And the target simulator based on Digital Micromirror Device has high-resolution, high brightness, the high frame of dynamic
Frequently, the advantages that can showing wide waveband, it is suitable for the target simulation of a variety of different scenes.
Currently, since the comparison of infrared half scene simulation technology development in kind is early, the target mould based on Digital Micromirror Device
Quasi- device research is largely to infrared band, but no matter infrared or visible light wave range DMD device drive part design is former
Reason is almost the same.After the country proposed the infrared target modeling scheme based on DMD for the first time from 2003, with device itself
The promotion of performance and the optimization of scheme make great progress in resolution ratio, applicable wave band, frame frequency, gray level etc..
Invention content
The present invention proposes a kind of target simulator based on Digital Micromirror Device.The target simulator passes through illumination optical system
System generates incident light and projects on dmd chip.Driving circuit is controlled by upper computer software.Driving circuit is responsible for download
CameraLink Real-time Motion Images data and static image data, scan picture, image storage, gray modulation, control
Dmd chip.Entered by test system eventually by projection objective by modulated emergent light.Its is small, light weight and cost is low；
Brightness height, high resolution, frame frequency are high, gray level is high, are applicable in wide waveband, have wide range of applications.
The technical solution adopted by the present invention is：One kind being based on the target simulator of Digital Micromirror Device (DMD), target simulation
Device includes：PC control software, driving circuit, Digital Micromirror Device, lamp optical system, projection objective, wherein：
The PC control software is communicated by USB1.1 with drive control circuit, and order and image are sent；
The driving circuit controls digital micro-mirror chip operation；
The Digital Micromirror Device overturns modulation incident light by micro mirror machinery and reaches imaging effect；
The lamp optical system provides light source for digital micro-mirror chip；
The projection objective is for projecting analog image by test system.
Wherein, the upper computer software, including USB1.1 drivings, transmission still image to dmd chip, batch file function,
An and friendly operation interface.
Wherein, the driving circuit is " FPGA+DLPC+DMD " structure, and wherein FPGA uses the Zynq-7000 of Xilinx
Series of X C7Z030 is responsible at USB2.0 static image communications and CameraLink dynamic videos real-time Communication for Power and realtime graphic
Reason, DLPC use the DLPC900 of TI, are responsible for USB1.1 static image communications, gray modulation, and control dmd chip, DMD and adopt
It with the DLP6500FLQ of TI, is overturn by micro mirror machinery, completes the display of target simulation image.
Wherein, the lamp optical system provides visible light source, projects on DMD reflection chips, for projecting.
Wherein, the projection objective receives the light reflected by dmd chip, and analog image enters by test system.
The principle of the present invention is：A kind of target simulator based on Digital Micromirror Device, the target simulator is by upper
Machine control software, driving circuit, Digital Micromirror Device, lamp optical system, projection objective composition, wherein：
The PC control software controls driving circuit, and the operating mode of selection target simulator sends static map
Picture is sent, record operational order.
The driving circuit is " FPGA+DLPC+DMD " structure.It is responsible for static image communication dynamic video real-time Communication for Power,
Scan picture, static image communication, gray modulation, and control dmd chip.
The drive circuit board is two boards split structure, wherein " FPGA+DLPC " on " control panel ", DMD cores
In " driving plate ", two boards are connected piece by the FPC flexible cords of 15cm or so.
The image/video information that the digital micro-mirror chip is sent according to driving circuit, passes through the mechanical location of micro mirror
Overturning is modulated incident light in a manner of reflection and forms analog image.
The lamp optical system generates white light (gray level image) according to demand or RGB segmentation coloured light (coloured image) is thrown
It is mapped to Digital Micromirror Device reflecting surface.
The projection objective puts into the reflected light of digital micro-mirror chip by test system.
Further, the upper computer software is communicated by USB1.1 and driving circuit, sends the 1920* of BMP formats
1080 pixel still images, optional then " pre-stored image " " dynamic video " " realtime graphic " " image sequence " four kinds of patterns can be with
Operational order each time is recorded in a text form, and supports that uploading text file executes the corresponding instruction of text.
Further, the driving circuit FPGA uses the Zynq-7000 series of X C7Z030 of Xilinx, is responsible for USB2.0
Static image communication and CameraLink dynamic videos real-time Communication for Power and scan picture.DLPC (DMD controls chip) is adopted
With the DLPC900 of TI, it is responsible for USB1.1 static image communications, gray modulation, and control dmd chip.
Further, the digital micro-mirror chip use TI DLP6500FLQ chips, resolution ratio battle array 1920x 1080,
Micro mirror sum is more than 2,000,000, and reflecting surface size (diagonal line) is 0.65 inch, and there are three types of each micro mirror machinery rollover states：+
12 ° (1), 0 °, -12 ° (0).When pixel memories data are 1, micro mirror flip angle makes emergent ray penetrate projection object just
Mirror indicates that this pixel is lighted, and gradation of image and colour information are shown by time-modulation mode.
The advantages of the present invention over the prior art are that：
(1) present invention is small, light-weight, low in energy consumption, and optical system technology is more mature, and TI companies provide dedicated
Digital Micromirror Device controls chip, and driving circuit is relatively easy to implement.
(2) present invention employs DLP6500FLQ chips, resolution ratio reaches 1920*1080, micromirror size only 7.56um*
7.56um, micro mirror gap are less than 1um.
(3) present invention can simulate most most-significant byte gray level image or coloured image, and 8 gray scale image frame frequencies are up to 247Hz, 1
Gray level image frame frequency is up to 9500Hz.
(4) present invention supports that flexible interface and control mode, system can be by under full speed USB1.1 or high speed USB 2.0
Static image data is carried, dynamic (real-time) image data is downloaded by CameraLink.Can by special RS422 serial ports,
LVDS serial ports, USB1.1 or the USB2.0 control port transmission control commands and arrange parameter of CameraLink.
Description of the drawings
Fig. 1 is the schematic diagram other than present invention driver circuit part, wherein 1 is collimation lens, and 2 be dichroic filter, 3
It is Digital Micromirror Device for light integrator, 4,5 be TIR prism, and 6 be projection objective, and 7 be collector lens, and 8 be red-light LED battle array
Row, 9 be green light LED array, and 10 be blue-ray LED array.
Fig. 2 is the principle schematic of present invention driver circuit part.
Fig. 3 is overall structure block diagram of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
The present invention is a kind of target simulator based on Digital Micromirror Device, including PC control software, driving circuit,
Digital Micromirror Device, lamp optical system, projection objective, wherein：
The Digital Micromirror Device, lamp optical system, projection objective structure are as shown in Figure 1.Three-color LED array provides three
The light of kind color, light are incident on Digital Micromirror Device by lamp optical system, are re-reflected into projection objective and are imaged.Including standard
It is straight lens 1, dichroic filter 2, light integrator 3, Digital Micromirror Device 4, TIR prism 5, projection objective 6, collector lens 7, red
Light LED array 8, green light LED array 9 and blue-ray LED array 10.System provides light source by three-color LED array, and three coloured light passes through photograph
Mingguang City learns system projects and is reflected into projection objective to Digital Micromirror Device surface, and eventually enters by test system.
The image/video information that the Digital Micromirror Device is used to be sent according to driving circuit, passes through the mechanical position of micro mirror
Overturning is set, incident light is modulated in a manner of reflection and forms analog image.Digital micro-mirror chip uses the DLP6500FLQ chips of TI,
Its resolution ratio battle array 1920x 1080, micro mirror sum are more than 2,000,000, and reflecting surface size (diagonal line) is 0.65 inch, each micro mirror
There are three types of mechanical rollover states：+ 12 ° (1), 0 °, -12 ° (0).When pixel memories data are 1, micro mirror flip angle is lucky
So that emergent ray is penetrated projection objective, indicate that this pixel is lighted, gradation of image and colour information are shown by time-modulation mode.
The lamp optical system is used to provide lighting source to Digital Micromirror Device.
The projection objective is used to put into reflected light by test system.
The driving circuit is " FPGA+DLPC+DMD " structure, is made of control panel and driving plate plate, two boards pass through
The FPC flexible cords of 15cm or so connect, system structure as shown in Fig. 2, FPGA is connected with DLPC, can with transmission data and instruction, into
Row image procossing.DLPC is connect with DMD, directly drives DMD work.Meanwhile DLPC is also connected with lamp optical system, drives it
Work.
The control panel is " FPGA+DLPC " structure, and wherein FPGA is serial using the Zynq-700 of Xilinx
XC7Z030, DLPC (DLP controllers) use the DLPC900 of TI.
The XC7Z030 can download static image data by high speed USB 2.0, and dynamic is downloaded by CameraLink
(real-time) image data can control port transmission control by special RS422 serial ports, the LVDS serial ports of CameraLink or USB2.0
Order and arrange parameter, can carry out scan picture.
The DLPC900 can download static image data by full speed USB1.1, can also directly download and be pre-stored in FLASH
In static image data, USB1.1 can be passed through and transmit control command and arrange parameter.
The driving plate is made of dmd chip, corresponding interface circuit and power circuit.Wherein DMD is using TI's
DLP6500FLQ (surface mount packages).+ 3.3V the digital powers of DLP6500 are introduced from control panel.Three road analog powers：+8.5V、-
10V ,+16V are generated by the switch power special chip TPS65145IPW of TI.
The PC control software design includes USB1.1 drivings, transmits display static simulation image, at batch file
Reason, operational platform design, wherein：
The USB1.1 drivers are write according to USB1.1HID communication protocols, pass through USB1.1 interfaces for DLPC
Download image data, transmission control command and arrange parameter.
The transmission shows static simulation image function, supports to transmit image from host computer, can also show and be pre-stored in
The image of FLASH.The colouring information of optional image, time for exposure, details in a play not acted out on stage, but told through dialogues time, the beginning of display can be set, suspend and stop
Only.
Every single stepping of the batch file processing function, user can correspond as one section of text.Open certification
Part uploads, and can record the operating process of user in the form of text.Also the batch file that can directly open txt formats, by wherein
Text operates DLP system.
The operation interface, for one based on MFC class libraries friendly windows user interface, user
Above-mentioned function is realized in operation.
Claims (5)
1. one kind being based on the target simulator of Digital Micromirror Device (DMD), which is characterized in that target simulator includes：Host computer
Control software, driving circuit, Digital Micromirror Device, lamp optical system, projection objective, wherein：
The PC control software is communicated by USB1.1 with drive control circuit, and order and image are sent；
The driving circuit controls digital micro-mirror chip operation；
The Digital Micromirror Device overturns modulation incident light by micro mirror machinery and reaches imaging effect；
The lamp optical system provides light source for digital micro-mirror chip；
The projection objective is for projecting analog image by test system.
2. the target simulator according to claim 1 based on Digital Micromirror Device (DMD), it is characterised in that：On described
Position machine software, including USB1.1 drivings, transmission still image to dmd chip, batch file function and friendly operation circle
Face.
3. the target simulator according to claim 1 based on Digital Micromirror Device (DMD), it is characterised in that：The drive
Dynamic circuit is " FPGA+DLPC+DMD " structure, and wherein FPGA uses the Zynq-7000 series of X C7Z030 of Xilinx, is responsible for
USB2.0 static image communications and CameraLink dynamic videos real-time Communication for Power and scan picture, DLPC is using TI's
DLPC900 is responsible for USB1.1 static image communications, gray modulation, and control dmd chip, and DMD is using TI's
DLP6500FLQ is overturn by micro mirror machinery, completes the display of target simulation image.
4. the target simulator according to claim 1 based on Digital Micromirror Device (DMD), it is characterised in that：The photograph
Bright optical system provides visible light source, projects on DMD reflection chips, for projecting.
5. the target simulator according to claim 1 based on Digital Micromirror Device (DMD), it is characterised in that：The throwing
Shadow object lens receive the light reflected by dmd chip, and analog image enters by test system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810200516.9A CN108445697A (en) | 2018-03-12 | 2018-03-12 | A kind of target simulator based on Digital Micromirror Device |
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| CN201810200516.9A CN108445697A (en) | 2018-03-12 | 2018-03-12 | A kind of target simulator based on Digital Micromirror Device |
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Cited By (5)
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|---|---|---|---|---|
| CN110365955A (en) * | 2019-04-19 | 2019-10-22 | 吉林省智宸光电技术有限公司 | A kind of multichannel scenario simulation device circuit system |
| CN111861861A (en) * | 2020-07-30 | 2020-10-30 | 哈尔滨方聚科技发展有限公司 | Miniature dynamic infrared image generation device |
| CN114486182A (en) * | 2021-12-14 | 2022-05-13 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Multiband dynamic target simulation device based on DMD spatial light modulation technology |
| CN115685533A (en) * | 2022-12-05 | 2023-02-03 | 武汉光启源科技有限公司 | Optical element packaging system, method and application |
| CN117192773A (en) * | 2023-11-06 | 2023-12-08 | 博莱瑞汽车部件(南通)有限公司 | Optical simulation system and method for DMD micro-mirror array |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365955A (en) * | 2019-04-19 | 2019-10-22 | 吉林省智宸光电技术有限公司 | A kind of multichannel scenario simulation device circuit system |
| CN111861861A (en) * | 2020-07-30 | 2020-10-30 | 哈尔滨方聚科技发展有限公司 | Miniature dynamic infrared image generation device |
| CN114486182A (en) * | 2021-12-14 | 2022-05-13 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Multiband dynamic target simulation device based on DMD spatial light modulation technology |
| CN114486182B (en) * | 2021-12-14 | 2024-03-22 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Multiband dynamic target simulation device based on DMD spatial light modulation technology |
| CN115685533A (en) * | 2022-12-05 | 2023-02-03 | 武汉光启源科技有限公司 | Optical element packaging system, method and application |
| CN117192773A (en) * | 2023-11-06 | 2023-12-08 | 博莱瑞汽车部件(南通)有限公司 | Optical simulation system and method for DMD micro-mirror array |
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Application publication date: 20180824 |