CN208128386U - A kind of high-resolution large area array imaging circuit system - Google Patents
A kind of high-resolution large area array imaging circuit system Download PDFInfo
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- CN208128386U CN208128386U CN201820509251.6U CN201820509251U CN208128386U CN 208128386 U CN208128386 U CN 208128386U CN 201820509251 U CN201820509251 U CN 201820509251U CN 208128386 U CN208128386 U CN 208128386U
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Abstract
The utility model relates to a kind of high-resolution large area array imaging circuit systems, it is characterized in that, including three pieces of focal plane plate, data processing plate and interface board circuit boards, the focal plane plate includes cmos detector and CMOS power supply unit, the CMOS power supply unit uses low pressure difference linear voltage regulator part (LDO), provides voltage needed for work for cmos detector；The data processing plate includes field programmable gate array (FPGA) unit, FLASH storage unit, crystal oscillator unit and power supply and distribution unit, and the FPGA unit is the core devices of the data processing plate, inside sets logic gates unit；The interface board includes data outputting unit, power input converter unit and power supply unit.The utility model has the advantages that, have many advantages, such as that image resolution ratio is high, real-time is good, small in size, easy to carry, simple and convenient, stable working performance, PCI-E image pick-up card, which is widely used, in collocation in the market can easily perform image display, store, and have wide applicability.
Description
Technical field
The utility model relates to photodetection imaging fields, and in particular to a kind of high-resolution large area array imaging circuit system.
Background technique
With the progress and development of industrial technology, machine vision more and more incorporates in people's lives.Machine vision
The image of offer has the routine work of people, living and studying and its important influence as important information source.It is special
It is not largely to use business monitoring device in China's security protection, road traffic in recent years, machine vision development has been increased to preceding institute
The height not having.In addition to this, machine vision is also largely used in space flight and aviation, military surveillance, industrial detection, scientific research etc.
Numerous areas, operating spectrum band range can not from visible light wave range to other also with different application fields, different demands
Visual wave band development, wherein it is especially most commonly seen with visual light imaging equipment, it is also the most known, such as number usually used
Code class product, cell-phone camera etc..
The common imaging sensor of visual light imaging equipment is mainly using CCD and cmos sensor as representative.CCD by its compared with
Good performance is in the most of share for occupying market in early days, but it has the shortcomings that high cost, high power consumption and integrated level are low etc..
With the continuous development of microelectric technique, the performance of cmos image sensor has also obtained significant progress.With traditional ccd image
Sensor is compared, and cmos image sensor has the advantages that low cost, low-power consumption, high integration and faster response speed,
It will advantageously under higher resolution.The high integration advantage of CMOS allows to for digital circuit being integrated in single-chip, this
Also the market advantage for CMOS in the absolute market that industry and popular civil field are won.Present patent application is based on CMOS
The high-resolution imaging circuit design that device is carried out.
Existing Chinese patent document discloses a kind of high-resolution large area array imaging circuit system, and main technical schemes are：
The method of realization face battle array cmos sensor bilateral scanning blur-free imaging：Cmos sensor is used for output face system of battle formations picture；Two panels external memory
Reservoir is used to store the digital picture of cmos sensor output, and real according to different TDI control sequentials when different scanning directions
Existing digital picture time delay integration.Scanning direction judgment means are used for the direction of motion to current sensor relative target scenery
It judges, targetedly TDI algorithm implementation, numeric field bilateral scanning is selected according to forward scan or reverse scan
TDI, which can automatically select matched numeric field TDI algorithm according to the direction of motion of input and control two panels memory, completes forward direction
Scan the read-write operation different with when reverse scan.It is different from the utility model.
Utility model content
The purpose of this utility model is to solve the above problems, and a kind of high-resolution large area array is provided, to obtain observed object
The imaging circuit system of useful image information.
To achieve the above object, the utility model provides the following technical solutions：
A kind of high-resolution large area array imaging circuit system, including three pieces of focal plane plate, data processing plate and interface board circuit boards,
The focal plane plate includes cmos detector and CMOS power supply unit, to reduce imaging system noise, improves picture quality, described
CMOS power supply unit uses low pressure difference linear voltage regulator part (LDO), provides voltage needed for work for cmos detector；The CMOS is just
Normal need of work provides operating voltage and register configuration, and register configuration is to CMOS output channel, Image Reversal, exposure control
System etc. is functionally selected.
The data processing plate includes field programmable gate array (FPGA) unit, FLASH storage unit, crystal oscillator unit and confession
Power distribution unit, the FPGA unit are the core devices of the data processing plate, inside set logic gates unit；The FLASH
Storage unit is a kind of read-only memory, for providing program load for FPGA starting；The crystal oscillator unit for FPGA for mentioning
It is the source clock of entire data processing plate work for work clock；The power supply and distribution unit provides work for data processing plate
Required working power；
The interface board includes data outputting unit, power input converter unit and power supply unit, and the data output is single
If member includes that the dedicated transmission chip of dry plate Camera-Link interface protocol and several Camera-Link data transmission externally connect
Connection interface；Wherein 24bit parallel data signal and 3bit control signal are changed into output by single channel Camera-Link transmission chip
4 pairs of LVDS data and 1 pair of LVDS clock.The power input converter unit provides primary power source for this imaging circuit system and becomes
It changes, a high voltage of input is transformed to secondary low-voltage, the confession of secondary low-voltage output to interface board and data processing plate
Electric unit；
The focal plane plate is used for the installation and power supply and distribution of cmos detector, what the data processing plate was used to export CMOS
Image data is arranged and is exported, and the interface board is for exporting image data.
Preferably, the cmos detector uses CMV2000 series detector, resolution ratio is 2048 × 1088, most
High frame frequency 340fps is exported image data by 16 pairs of data differential lines, while exporting 1 pair of differential clock line as data
With road clock.
Preferably, the CMOS power supply unit using TPS76801 be used as power supply chip, the device have the linearity height,
Export many advantages, such as electric current is big, operating temperature range is wide.For the heat consumption for reducing imaging circuit system, the power input transformation
Unit uses DC-DC power source conversion module, preferably LMZ23603 power supply chip.
Further ,+3.3V ,+3.0V ,+2.0V needed for the CMOS power supply unit provides work for cmos detector
Voltage.
Preferably, the FLASH storage unit is an electrically erasable programmable read-only memory, preferably
N25Q256 memory.
Preferably, the data outputting unit includes the dedicated transmission chip of two panels Camera-Link interface protocol
DS90CR285 or DS90CR287 and two Camera-Link data transmits external connection interface.
Preferably, the crystal oscillator unit uses 50Mhz external crystal-controlled oscillation.
The beneficial effects of the utility model are：
High-resolution large area array cmos imaging circuit provided by the utility model provides for current high-resolution imaging circuit design
A kind of implementation method, and devise the Camera-Link standard image transfer interface circuit of suitable image transmitting, there is figure
As high resolution, many advantages, such as real-time is good, small in size, easy to carry, simple and convenient, stable working performance.This is practical new
The economic, practical property of type is good, and PCI-E image pick-up card, which is widely used, in imaging circuit collocation in the market can easily carry out figure
As display, storage, user, which does not need to spend a lot of time and energy again, develops special acquisition display software.This imaging circuit has a wide range of applications
Prospect, may be also used in as：In the equipment such as high-resolution imaging spectrometer, tridimensional mapping camera, big bandwidth Visible Light Camera.
Detailed description of the invention
In order to illustrate more clearly of the utility model embodiment technical solution, will make below to required in embodiment description
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model in order to more clearly
Illustrate the utility model embodiment or technical solution in the prior art, for those of ordinary skill in the art, is not paying
Out under the premise of creative work, it is also possible to obtain other drawings based on these drawings.
Fig. 1 and Fig. 2 is the circuit board connection schematic diagram of the utility model；
Fig. 3 is the utility model embodiment schematic diagram；
Fig. 4 is that the utility model FPGA image processing module hardware connects block diagram.
Specific embodiment
As shown in Figs 1-4, the utility model is designed mainly for the imaging circuit that cmos image sensor is carried out, in data
Camera-Link image data coffret has been used in transmission.It mainly includes coke that the utility model, which provides imaging circuit system,
Totally three pieces of circuit boards form for face circuit board, data processing plate, interface board.
(1) focal plane plate
Focal plane plate mainly forms cmos detector and CMOS power supply unit by two parts.CMOSIS has been selected in circuit design
The CMV2000 series detector of company, the detector resolution are 2048 × 1088 pixels, highest frame frequency 340fps.The CMOS
Device exports 16 pairs of differential datas and 1 pair of differential clocks, and the data and clock line are exported into signal processing circuit FPGA device,
CMOS normal work also needs FPGA unit to provide work clock and SPI communication register configuration.Work clock is in CMOS
The clock source that portion works normally, SPI communication are for configuring CMOS working condition, such as exposure setting, Image Reversal.
+ 3.3V ,+3.0V ,+2.0V needed for power supply and distribution unit is used to provide work for the cmos detector on focal plane plate,
To reduce imaging system noise, picture quality is improved, power supply unit has selected low pressure difference linear voltage regulator part (Low Dropout
Regulator, LDO).Select the TPS76801 of TI company as power supply chip, which has linearity height, output electric current
Greatly, many advantages, such as operating temperature range is wide.
(2) data processing plate
The main composition of data processing plate includes field programmable gate array FPGA unit, FLASH storage unit, crystal oscillator list
Member, power supply and distribution unit etc..Wherein, FPGA unit is the core devices of data processing plate, and internal logic gate circuit unit passes through
CMOS output is with 16 circuit-switched data of road clock sampling, and 16 tunnel image data of Bing Jiang forms a width complete image, then according to Camera-
Image data is sent to interface card by Link agreement；Onboard FLASH storage unit can for a kind of non-volatile, electric erasable
Program read-only memory is mainly used to provide program load for FPGA starting；Onboard crystal oscillator unit provides work clock for FPGA,
It is the source clock of entire data processing plate work；Work needed for onboard power supply and distribution unit provides work for the data processing plate
Power supply.
FPGA realizes sampling and the arrangement to CMOS output data by its internal logic unit of internal operation software transfer
For a width complete image, after the image of recombination is stored into its internal storage fifo module, inside output logic is (in Fig. 3
Framing X passage, the channel Y) data according to the size and quantization digit of real image, generate row synchronization, frame synchronization, data by unit
Useful signal, and interface board is sent to by Camera-Link Data Transport Protocol.Specific to one practical application of the utility model
In case, Xilinx company FPGA model XC7A200T-2SBG484I is selected, framing X passage, the channel framing Y are will to scheme
Picture data are sent according to Camera-Link video transmission protocol, using Medium format, every channel point in this application case
It Shu Chu not 1 tunnel synchronization signal of row, 1 tunnel frame synchronization, 1 circuit-switched data useful signal, 24bit Parallel image data (2 pixels), 1 tunnel
Clock 80Mhz.
FLASH storage unit is a kind of non-volatile, electrically erasable programmable read-only memory, is mainly used to open for FPGA
It is dynamic that program load is provided.Specific to this application case, N25Q256 memory has been used.
Crystal oscillator unit provides work clock for FPGA, is the source clock of entire board work.Specific to present case, use
50Mhz external crystal-controlled oscillation.
(3) interface board
It includes data outputting unit and power input converter unit that interface board, which mainly forms,.Specific to present case, data are defeated
Unit has used the dedicated transmission chip DS90CR285 of 2 Camera-Link interface protocols or DS90CR287 (the utility model out
Using DS90CR287) and 2 Camera-Link data transmission external connection interfaces；Wherein single channel Camera-Link is sent
24bit parallel data signal and 3bit control signal are changed into 4 pairs of LVDS data of output and 1 pair of LVDS clock by chip.
Power input converter unit provides primary power source transformation for imaging circuit, specific to present case, by the primary of input
Power supply+24V is transformed to secondary+5V voltage；Secondary power supply is exported to the power supply unit of interface board and data processing board.For reduce at
As the heat consumption of circuit system has selected the LMZ23603 power supply chip of TI using DC-DC power source conversion module.
High-resolution large area array cmos imaging circuit provided by the utility model provides for current high-resolution imaging circuit design
A kind of implementation method, and devise the Camera-Link standard image transfer interface circuit of suitable image transmitting, there is figure
As high resolution, many advantages, such as real-time is good, small in size, easy to carry, simple and convenient, stable working performance.This is practical new
The economic, practical property of type is good, and PCI-E image pick-up card, which is widely used, in imaging circuit collocation in the market can easily carry out figure
As display, storage, user, which does not need to spend a lot of time and energy again, develops special acquisition display software.This imaging circuit has a wide range of applications
Prospect, may be also used in as：In the equipment such as high-resolution imaging spectrometer, tridimensional mapping camera, big bandwidth Visible Light Camera.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of high-resolution large area array imaging circuit system, which is characterized in that including focal plane plate, data processing plate and interface board three
Block circuit board, the focal plane plate include cmos detector and CMOS power supply unit, and the CMOS power supply unit uses low voltage difference line
Property voltage-stabilizing device (LDO), provides voltage needed for work for cmos detector；
The data processing plate includes field programmable gate array (FPGA) unit, FLASH storage unit, crystal oscillator unit and power supply and distribution
Unit, the FPGA unit are the core devices of the data processing plate, inside set logic gates unit；The FLASH storage
Unit is a kind of read-only memory, for providing program load for FPGA starting；The crystal oscillator unit is used to provide work for FPGA
Make clock, working power needed for the power supply and distribution unit provides work for data processing plate；
The interface board includes data outputting unit, power input converter unit and power supply unit, the data outputting unit packet
If including the dedicated transmission chip of dry plate Camera-Link interface protocol and several Camera-Link data transmission external connections connecing
Mouthful；The power input converter unit provides primary power source transformation for this imaging circuit system, and a high voltage of input is become
It is changed to secondary low-voltage, the power supply unit of secondary low-voltage output to interface board and data processing plate.
2. a kind of high-resolution large area array imaging circuit system according to claim 1, which is characterized in that the CMOS detection
Device uses CMV2000 series detector, and resolution ratio is 2048 × 1088, and highest frame frequency 340fps passes through 16 pairs of data differences
Line exports image data, while exporting 1 pair of differential clock line as data with road clock.
3. a kind of high-resolution large area array imaging circuit system according to claim 1, which is characterized in that the CMOS power supply
Unit is using TPS76801 as power supply chip；The power input converter unit uses DC-DC power source conversion module, preferably
LMZ23603 power supply chip.
4. a kind of high-resolution large area array imaging circuit system according to claim 1, which is characterized in that the CMOS power supply
+ 3.3V needed for unit provides work for cmos detector ,+3.0V ,+2.0V voltage.
5. a kind of high-resolution large area array imaging circuit system according to claim 1, which is characterized in that the FLASH is deposited
Storage unit is an electrically erasable programmable read-only memory, preferably N25Q256 memory.
6. a kind of high-resolution large area array imaging circuit system according to claim 1, which is characterized in that the data output
Unit includes two panels Camera-Link interface protocol dedicated transmission chip DS90CR285 or DS90CR287 and two Camera-
Link data transmit external connection interface.
7. a kind of high-resolution large area array imaging circuit system according to any one of claims 1 to 6, which is characterized in that institute
Crystal oscillator unit is stated using 50Mhz external crystal-controlled oscillation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820509251.6U CN208128386U (en) | 2018-04-11 | 2018-04-11 | A kind of high-resolution large area array imaging circuit system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820509251.6U CN208128386U (en) | 2018-04-11 | 2018-04-11 | A kind of high-resolution large area array imaging circuit system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109905618A (en) * | 2019-03-26 | 2019-06-18 | 中国科学院长春光学精密机械与物理研究所 | The design method of sandwich imaging unit structure and the positive sample of a step |
| CN113125011A (en) * | 2021-03-12 | 2021-07-16 | 中国科学院西安光学精密机械研究所 | Medium wave infrared Hadamard aperture coding spectrum high frame frequency imaging circuit |
| CN113784065A (en) * | 2021-08-27 | 2021-12-10 | 同济大学 | High-speed imaging system for water and underwater photography |
-
2018
- 2018-04-11 CN CN201820509251.6U patent/CN208128386U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109905618A (en) * | 2019-03-26 | 2019-06-18 | 中国科学院长春光学精密机械与物理研究所 | The design method of sandwich imaging unit structure and the positive sample of a step |
| CN109905618B (en) * | 2019-03-26 | 2021-03-16 | 中国科学院长春光学精密机械与物理研究所 | Sandwich imaging unit structure and one-step sample design method |
| CN113125011A (en) * | 2021-03-12 | 2021-07-16 | 中国科学院西安光学精密机械研究所 | Medium wave infrared Hadamard aperture coding spectrum high frame frequency imaging circuit |
| CN113125011B (en) * | 2021-03-12 | 2022-07-19 | 中国科学院西安光学精密机械研究所 | Medium wave infrared Hadamard aperture coding spectrum high frame frequency imaging circuit |
| CN113784065A (en) * | 2021-08-27 | 2021-12-10 | 同济大学 | High-speed imaging system for water and underwater photography |
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Granted publication date: 20181120 Termination date: 20190411 |