CN108924460A - Image data acquisition box and image acquisition system - Google Patents
Image data acquisition box and image acquisition system Download PDFInfo
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- CN108924460A CN108924460A CN201810639183.XA CN201810639183A CN108924460A CN 108924460 A CN108924460 A CN 108924460A CN 201810639183 A CN201810639183 A CN 201810639183A CN 108924460 A CN108924460 A CN 108924460A
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 230000003139 buffering effect Effects 0.000 claims description 12
- 238000009432 framing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 230000001314 paroxysmal effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1668—Details of memory controller
- G06F13/1673—Details of memory controller using buffers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
- G06F13/4286—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using a handshaking protocol, e.g. RS232C link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0002—Serial port, e.g. RS232C
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
The invention relates to an image data acquisition box and an image acquisition system, which solve the problems of overlarge volume, more wiring and the like caused by the fact that the conventional acquisition equipment is inserted on a large-scale peripheral PC by depending on an acquisition card, and inconvenience in carrying and installation, wherein the conventional acquisition equipment comprises an FPGA chip, a DDR2 storage chip, a USB3.0 interface chip, a USB connector, a Camera-L ink interface chip and a Camera-L ink interface, the Camera-L ink interface is externally connected with an external Camera and is connected with the FPGA chip through the Camera-L ink interface chip, the DDR2 storage chip is communicated with the FPGA chip, and the USB connector is connected with the peripheral PC and is connected with the FPGA chip through the USB3.0 interface chip.
Description
Technical field
The invention belongs to data acquisition technology field, it is related to a kind of image data acquiring box and image capturing system.
Background technique
Current most imaging systems are ground using electrical interface output number or the image data of simulation in imaging system
It makes and in use, image data acquiring and display are an essential rings.How fast and accurately to acquire and show imaging
The data of system output, have great importance to imaging system development, guarantee the stability of acquisition system, reliability and in real time
Property be develop an imaging system premise.In addition, acquisition in real time and display system also provide one visually for imaging system
The application environment of change.
The capture card that existing most of acquisition systems are inserted into PC machine mainboard by one converts PCIE for camera interface and connects
Mouthful, to realize acquisition of the PC machine to camera output data.Although PCIE interface bandwidth can be guaranteed, ligand is needed
The bigger Desktop PC host of product, also needs plus PC machine peripheral hardware, leading to acquisition system, volume is relatively large, and wiring is more, is doing
It is excessively heavy when field trial, it is not easy to carry.
And it is existing in such a way that capture card is acquired, auxiliary data relevant to image data can not be provided,
And these auxiliary datas are also required for some users.
Summary of the invention
In order to solve the problems in background technique, the present invention devises a kind of using the image based on USB3.0 connector
Data acquisition box, solves existing acquisition equipment and must rely on capture card and be inserted into large-scale peripheral hardware PC machine, bring volume
The problem of excessive, not readily portable and installation such as wiring is more.
Meanwhile it being also based on above-mentioned image data acquiring box, propose a kind of portable notes of image data acquiring box cooperation
The image data collection system of this computer.
The specific technical solution of the present invention is：
A kind of image data acquiring box, it is characterised in that：Including fpga chip, DDR2 storage chip, USB3.0 interface core
Piece, USB connector, Camera-Link interface chip and Camera-Link interface；
The external external camera of Camera-Link interface, and connect by Camera-Link interface chip with fpga chip,
DDR2 storage chip is mutually communicated with fpga chip, and USB connector is connect with peripheral hardware PC machine, and by USB interface chip with
Fpga chip connection.
Further, which further includes RS485 chip and RS485 interface；RS485 interface passes through RS485 chip
It is connect with fpga chip, for uploading image auxiliary data；Described image auxiliary data includes frame head mark, frame count, image
Line number, picturewide and pixel digit.
Further, which further includes spare interface resource chip and spare interface；Spare interface passes through reserved
Interface resource chip is connect with fpga chip, for realizing different types of camera interface is connected.
Further, USB connector includes that the USB3.0 interface for being used for transmission image data and one are used for outward
If the USB2.0 interface of PC machine power supply.
Further, which further includes power management module；USB2.0 interface is connect with power management module.
Further, the program module run in the fpga chip includes image data receiving module, data framing mould
Block, data buffering writing module, MIG controller, data buffering read module and USB interface tfi module；
Image data receiving module connect and is used for Camera-Link interface chip and spare interface resource chip respectively
Receive the image data of external camera；
Assistance data reception module connect the assistant images number for receiving external camera offer with RS485 interface chip
According to；
Data framing module receives the image data that image data receiving module is sent and assistance data reception module hair
After the assistant images data sent, by the splicing of each assistant images data before each frame image data, a data are formed
Packet；
The data packet is written in DDR2 storage chip by MIG controller and is cached by data buffering writing module；
Data buffering, which reads module and reads MIG controller out of DDR2 storage chip, data cached is sent to USB interface
Tfi module；
USB interface tfi module sends data to laptop according to the timing requirements of USB3.0 interface chip.
Based on above-mentioned image data acquiring box, the structure of the image capturing system using the image data acquiring box is now provided
Description, which includes above-mentioned image data acquiring box and laptop；Image data acquiring box passes through USB3.0 connection
Line and laptop realize mutually communication.
The beneficial effects of the invention are as follows：
1, image data acquiring box of the invention by by fpga chip, DDR2 storage chip, USB3.0 interface chip,
USB connector, the mode of Camera-Link interface chip and Camera-Link Interface integration together, not only bandwidth meets
The real-time acquisition requirement of most of camera image data, while USB3.0 interface has the characteristics that small in size and versatile, benefit
In the miniaturization of system and the exploitation of acquisition software, while the image capturing system of existing PC machine and capture card form is compared,
Acquisition system of the invention is easy to carry.
2, RS485 chip and RS485 interface are equipped in image data acquiring box of the invention for uploading visual aids
Data further improve comprehensive, the various requirement suitable for user of data acquisition.
3, it is equipped with spare interface resource chip and spare interface in image data acquiring box of the invention, realizes inhomogeneity
The camera of type can be used image data acquiring box of the invention and be acquired, and improve the applicable model of image data acquiring box
It encloses.
Detailed description of the invention
Fig. 1 is the system diagram of image capturing system in the present invention；
Fig. 2 is the structure principle chart of image data acquiring box；
Fig. 3 is the display interface schematic diagram of image data and image auxiliary data on laptop.
Specific embodiment
The present invention passes through a kind of specific embodiment of image capturing system, the present invention is described in detail, such as Fig. 1 institute
Show.
Camera is attached by image data acquiring box with laptop.
Image data and image auxiliary data are transferred to image data acquiring box by camera, and image data acquiring box receives number
External laptop is transferred to by USB3.0 interface according to rear, the acquisition software display image data reconciliation in laptop
Analyse auxiliary data.
1, image data acquiring box
As shown in Fig. 2, image data acquiring box of the invention, using fpga chip as master devices, realize data reception,
Conditioning and output.
Image data acquiring box specific structure includes fpga chip, DDR2 storage chip, USB3.0 interface chip, USB company
Connect device, Camera-Link interface chip, Camera-Link interface, RS485 chip, RS485 interface, spare interface resource core
Piece, spare interface and power management module；
The external external camera of Camera-Link interface, and connect by Camera-Link interface chip with fpga chip,
DDR2 storage chip is mutually communicated with fpga chip, and USB connector is connect with peripheral hardware PC machine, and by USB3.0 interface chip with
Fpga chip connection.
RS485 interface is connect by RS485 chip with fpga chip, for uploading image auxiliary data；Described image is auxiliary
Helping data includes frame header knowledge, frame count, picturedeep, picturewide and pixel digit.
Spare interface is connect by spare interface resource chip with fpga chip, for realizing different types of camera is connected
Interface.
USB connector includes that the USB3.0 interface for being used for transmission image data and one are used to power to peripheral hardware PC machine
USB2.0 interface, USB2.0 interface connect with power management module.
Specifically, the program module run in fpga chip includes image data receiving module, data framing module, number
Module and USB interface tfi module are read according to buffering writing module, MIG controller, data buffering；
Image data receiving module connect and is used for Camera-Link interface chip and spare interface resource chip respectively
Receive the image data of external camera；
Assistance data reception module connect the assistant images number provided for receiving outer external camera with RS485 interface chip
According to；
Data framing module receives the image data that image data receiving module is sent and assistance data reception module hair
After the assistant images data sent, by the splicing of each assistant images data before each frame image data, a data are formed
Packet；
The data packet is written in DDR2 storage chip by MIG controller and is cached by data buffering writing module；
Data buffering, which reads module and reads MIG controller out of DDR2 storage chip, data cached is sent to USB interface
Tfi module；
USB interface tfi module sends data to laptop according to the timing requirements of USB3.0 interface chip.
Need to stress is：
1, USB interface
USB3.0 interface is used between image data acquiring box and laptop, bandwidth meets most of camera image number
According to real-time acquisition requirement.In addition, USB3.0 have the characteristics that it is small in size and versatile, conducive to the miniaturization and acquisition of system
The exploitation of software.
USB3.0 interface transmission data is used between image data acquiring box and laptop, in addition increases one only
The USB interface of function of supplying power carries out auxiliary power supply interface.Image data acquiring box is powered using 5V in the present invention, and measured current
Less than 1A, USB3.0 interface can provide the power supply of 5V/900mA, and USB2.0 can provide the power supply of 5V/500mA, image data
The connection relationship that USB3.0+USB3.0 or USB3.0+USB2.0 is used between collecting cassette and laptop can be picture number
It is worked normally according to collecting cassette and enough power reguirements is provided.
2, data receiver interface
More common Camera-Link interface image data, RS485 interface image are used in the present invention
Auxiliary data.
3, data store
The data of USB3.0 interface be transmitted as it is paroxysmal, and camera output interface be it is continuous continual, need big face
Long-pending memory space carries out data buffer storage, prevents loss of data.Use DDR2 storage chip as memory in present system
Part provides data buffer storage for USB3.0 acquisition.DDR2 storage chip has the characteristics that memory space is big, read or write speed is fast, uses
MIG (Memory Interface Generator) in Xilinx company FPGA can be realized the read-write to DDR2.
4, acquisition software
Acquisition software is installed on laptop, realizes the parsing of the acquisition of data, the display of image and auxiliary data.
As shown in Figure 3：Including acquisition control region, parameter setting region, acquisition image display area, image auxiliary data region and
Log Window region；
(1) acquisition control region realizes the preservation function of beginning, stopping and data that data acquire.
(2) parameter setting region realizes the basic setup function of acquiring preceding some parameters, the size (line number including image
× columns), pixel digit and scanning mode etc..
(3) image of acquisition image display area real-time display acquisition.
(4) auxiliary data area shows definition and the numerical value of the auxiliary data parsed, has in addition also reserved multiple
Auxiliary data facilitates its meaning of user's self-defining.
(5) operation such as Log Window regional record acquisition software dynamic, including beginning, stopping, setting parameter and
The mistake and failure that may occur.
Claims (7)
1. a kind of image data acquiring box, it is characterised in that：Including fpga chip, DDR2 storage chip, USB3.0 interface chip,
USB connector, Camera-Link interface chip and Camera-Link interface；
The external external camera of Camera-Link interface, and connect by Camera-Link interface chip with fpga chip, DDR2
Storage chip is mutually communicated with fpga chip, and USB connector is connect with peripheral hardware PC machine, and passes through USB3.0 interface chip and FPGA
Chip connection.
2. image data acquiring box according to claim 1, it is characterised in that：It further include that RS485 chip and RS485 connect
Mouthful；RS485 interface is connect by RS485 chip with fpga chip, for uploading image auxiliary data；Described image auxiliary data
Including frame head mark, frame count, picturedeep, picturewide and pixel digit.
3. image data acquiring box according to claim 2, it is characterised in that：Further include spare interface resource chip and
Spare interface；Spare interface is connect by spare interface resource chip with fpga chip, for realizing different types of phase is connected
Machine interface.
4. image data acquiring box according to claim 3, it is characterised in that：USB connector includes one and is used for transmission
The USB3.0 interface of image data and a USB2.0 interface for powering to peripheral hardware PC machine.
5. image data acquiring box according to claim 4, it is characterised in that：It further include power management module；USB2.0
Interface is connect with power management module.
6. image data acquiring box according to claim 5, it is characterised in that：The program mould run in the fpga chip
Block includes image data receiving module, data framing module, data buffering writing module, MIG controller, data buffering reading mould
Block and USB interface tfi module；
Image data receiving module is connect with Camera-Link interface chip and spare interface resource chip for receiving respectively
The image data of external camera；
Assistance data reception module connect the assistant images data for receiving external camera offer with RS485 interface chip；
What the image data and assistance data reception module that data framing module reception image data receiving module is sent were sent
After assistant images data, by the splicing of each assistant images data before each frame image data, a data packet is formed；
The data packet is written in DDR2 storage chip by MIG controller and is cached by data buffering writing module；
Data buffering, which reads module and reads MIG controller out of DDR2 storage chip, data cached is sent to USB interface timing
Module；
USB interface tfi module sends data to laptop according to the timing requirements of USB3.0 interface chip.
7. a kind of image capturing system, it is characterised in that：Including image data acquiring box as claimed in claim 6 and notes
This computer；Described image data acquisition box realizes mutually communication by USB3.0 connecting line and laptop.
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| CN201810639183.XA CN108924460A (en) | 2018-06-20 | 2018-06-20 | Image data acquisition box and image acquisition system |
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| CN201810639183.XA CN108924460A (en) | 2018-06-20 | 2018-06-20 | Image data acquisition box and image acquisition system |
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Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109756642A (en) * | 2018-12-28 | 2019-05-14 | 中科院成都信息技术股份有限公司 | The control method and ballot paper image capturing system of ballot paper image capturing system |
| CN111982936A (en) * | 2020-08-25 | 2020-11-24 | 绍兴市特种设备检测院 | X-ray automatic detection device for heat exchanger tube-tube plate welding seam |
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Application publication date: 20181130 |