CN108668084A - Industrial camera - Google Patents
Industrial camera Download PDFInfo
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- CN108668084A CN108668084A CN201810828712.0A CN201810828712A CN108668084A CN 108668084 A CN108668084 A CN 108668084A CN 201810828712 A CN201810828712 A CN 201810828712A CN 108668084 A CN108668084 A CN 108668084A
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- China
- Prior art keywords
- cpld
- described image
- programmable logic
- logic device
- industrial camera
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- 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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- 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
Abstract
The invention discloses a kind of industrial cameras, including image acquiring device and image processing unit, described image acquisition device is connected with described image processing unit by LVDS connection cables, described image acquisition device includes digital imaging unit and programmable logic device (CPLD) or FPGA, the digital imaging unit is used for reference object, the programmable logic device (CPLD) or FPGA are connect with the digital imaging unit, the programmable logic device (CPLD) or FPGA are used to the parallel signal that the digital imaging unit exports being converted to serial signal, the serial signal is transferred to described image processing unit by the LVDS connection cables.The industrial camera can effectively reduce the structure size of imaging moiety, reduce weight, improve speed, precision, stability and the compactedness intelligently equipped.
Description
Technical field
The present invention relates to a kind of industrial camera is related to, especially a kind of industrial digital camera field.
Background technology
Industrial camera has high picture steadiness, high-transmission ability and high anti-jamming capacity, thus in the intelligence of factory
Change in transformation and obtains increasingly extensive application.Currently, common industrial camera is to be based on CCD mostly on the market
The work of (Chargecoupled Device) or CMOS (Complementarymetal Oxide Semiconductor) chip
Industry digital camera.Ccd image sensor integrates opto-electronic conversion and charge storage, electric charge transfer, signal-obtaining, is typical
Solid imaging device.The outstanding feature of CCD be using charge as signal, and different from other devices be to be with electric current or voltage
Signal.This kind of image device forms charge packet by opto-electronic conversion, is then shifted under the action of driving pulse, amplifies output figure
As signal.Typical CCD camera is by optical lens, sequential and synchronous generator, vertical driver, analog/digital signal
Processing circuit forms.Cmos image sensor is by photosensitive element array, image signal amplifier, signal read circuits, analog-to-digital conversion
Circuit, image-signal processor and controller collection are on one chip, and also the programming random access with local pixel is excellent
Point.Currently, cmos image sensor with the features such as its good integration, low-power consumption, high-speed transfer and wide dynamic range in height
Resolution ratio and high speed situation are widely used.
But since the size of existing industrial digital camera is limited by C mouthfuls of sizes of standard, actual use when
It waits, C mouthfuls of industrial pick-up lens need to be connected, cause that the volume of visual component structure entirety is excessive, weight is also excessive.And industrial phase
The visual structure part of machine directly influences the work intelligently equipped as one of the key components intelligently equipped, size
Precision and working efficiency.On the other hand, in order to minimize industrial digital camera, current mainstream industry digital camera is by multilayer
Circuit board group at：Include mainly programmable logic device FPGA (Field Programmable including CMOS/CCD circuits
Gate Array, i.e. field programmable gate array) governor circuit and power circuit etc..This polylith circuit is layered together to be mounted on
It forms a whole in industrial digital camera square casing, and FPGA (Field Programmable Gate Array, i.e., it is live
Programmable gate array) master control can only dock 1 imaging sensor.With the raising of FPGA main control processor chip operational capabilities,
After monolithic FPGA main control processors acquire 1 vision sensor data, extra operational capability just wastes.
For example, being mentioned in the patent that China Patent Publication No. is CN104284065A, " main control module is at FPGA master controls
Manage device chip, including Image Acquisition control module, image pre-processing module, image advanced processing module, transmission control module and
Structure as storage control module ".But, using " integrated form " structure, that is, cmos image sensor is used, is had
Effect reduces the cost and power consumption of camera, and the structure of CMOS+FPGA improves the integrated level of camera, makes the volume and weight of camera
Smaller is more suitable for the application for having particular/special requirement to camera size weight.Also such as China Patent Publication No. is
In the patent of CN108055440A, what is recorded is a kind of typical traditional integrated structure.
For example in the patent that U.S. Patent Publication No. is US20180084168A1, traditional integrated structure is also belonged to,
I.e.：" camera shooting "+" image procossing " (FPGA main control processors) is integrated in the structure of camera internal.
About reference or introduce：The applicant have submitted on the same day it is entitled " a kind of digital imaging apparatus for industrial camera,
A kind of a kind of a kind of patent application of industrial camera digital imaging apparatus, industrial photographic means, industrial digital camera ", these
The content of patent application, the application also reference/introducing in this together.
Invention content
The purpose of the present invention is to provide a kind of industrial cameras, can effectively reduce intelligence equipment weight, improve intelligence dress
Standby speed, precision, stability and compactedness.
To achieve the above object, the present invention provides a kind of industrial cameras, including image acquiring device and image procossing list
Member, described image acquisition device and described image processing unit are connected by LVDS connection cables, described image acquisition device packet
Include digital imaging unit and programmable logic device (CPLD) or programmable logic device FPGA (Field Programmable
Gate Array, i.e. field programmable gate array), the digital imaging unit is used for reference object, the programmable logic device
Part CPLD or programmable logic device FPGA are connect with the digital imaging unit, the programmable logic device (CPLD) or can be compiled
Journey logical device FPGA is used to the parallel signal that the digital imaging unit exports being converted to serial signal, the serial signal
It is transferred to described image processing unit by the LVDS connection cables.
In the present solution, by adding a programmable logic device (CPLD) on the basis of digital imaging unit or may be programmed
Logical device FPGA (Field Programmable Gate Array, i.e. field programmable gate array), the programmable logic device
Part CPLD or programmable logic device FPGA is specifically used to the output signal of conversion digital imaging unit, and parallel signal is turned serial
Signal, serial signal can be transferred to the FPGA main control processors or DSP (Digital Signal Processor, number of rear end
Word signal processor) main control processor.In this way, in the industrial camera because image acquiring device can and image processing unit
Separation, industrial camera can minimize, and the structure size of industrial camera has significant impact to the design intelligently equipped, imaging
Part is more small and exquisite, then entire high speed, high-precision, stability and the compactedness intelligently equipped is better, can more reduce and intelligently equip
Design and manufacture cost, the performance for improving equipment, to promote the competitiveness intelligently equipped.On the other hand, image processing unit can
To handle the signal that multiple images acquisition device transmits simultaneously, the calculation process energy of image processing unit can make full use of
Power efficiently uses computing resource.
Preferably, digital imaging unit includes CMOS chip or CCD chip.
Preferably, image acquiring device further includes signal amplification unit, and signal amplification unit is used for programmable logic device
It is exported after the output signal amplification of part CPLD.
Preferably, image acquiring device further includes input interface and output interface.
Preferably, image acquiring device further includes buffer unit.
Preferably, image processing unit is FPGA main control processors or DPS main control processors.
Preferably, programmable logic device (CPLD) is connect with digital imaging unit by winding displacement or plug-in unit.
Preferably, image acquiring device includes pick-up lens.
Preferably, pick-up lens uses the lens interface smaller than C mouthfuls of diameters.
Preferably, lens interface is M12 or S hickeys.
Preferably, image processing unit further includes that LVDS unstrings the parallel letter of change that voluntarily unstrings inside device or main control chip
Number.
Compared with prior art, the present invention has the advantages that：By designing a kind of completely new industrial camera, in number
A programmable logic device (CPLD) is added on the basis of word imaging unit, which is specifically used to convert
Parallel signal is turned serial signal by the output signal of digital imaging unit, and serial signal can be transferred to the FPGA master controls of rear end
Processor or DSP main control processors.
In this way, because using programmable logic device (CPLD) for (image to be believed by the parallel signal of digital imaging unit
Number) serial signal is converted to, convenient for being transmitted to the image processing unit of rear end by LVDS cables, to which image obtains dress
Setting can detach with image processing unit, be obtained similar to the image in the intelligent apparatus components such as mechanical arm so as to be mounted on
Device is taken to minimize, and image processing unit is by LVDS connection cables with image acquiring device due to can be connect, thus i.e.
Make image processing unit size such as tradition or do more (such as to use large-scale to enhance calculation processing power
Or multiple images processor), will not to intelligence equipment impact.Further, by means of signal amplification unit, then
The transmission range of serial signal can be expanded to farther distance, thus, which image processing unit can be set to institute
The size in the place needed, volume will not substantially adversely affect the design intelligently equipped.Design in this way,
Industrial camera can minimize, and the structure size of industrial camera has significant impact, imaging moiety to the design intelligently equipped
More small and exquisite, then entire high speed, high-precision, stability and the compactedness intelligently equipped is better, can more reduce the design intelligently equipped
Manufacturing cost, the performance for improving equipment, to promote the competitiveness intelligently equipped.On the other hand, same by image processing unit
When the signal that transmits of processing multiple images acquisition device, the processing capacity of image processing unit can be made full use of.
Description of the drawings
Fig. 1 is the principle schematic of industrial camera according to the present invention.
Specific implementation mode
Below in conjunction with the accompanying drawings, the specific implementation mode of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield range is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
As shown in Figure 1, according to a kind of industrial camera of the specific embodiment of the invention, including image acquiring device 1 and figure
As processing unit, image acquiring device 1 includes that digital imaging unit 11 and programmable logic device (CPLD) 12 are (also simple in this patent
Referred to as CPLD chips) (such as the CoolRunner-II CPLD series of Xilinx companies：XC2C32A) (as a kind of alternative
Case, CPLD chips can also be suitable for the fpga chip of this patent, such as simple type FPGA using package dimension, specifically for example
The FPGA of Xilinx companies：The small-sized FPGA of Spartan-3 series：XC3S50；It is important to note that FPGA herein with it is follow-up
It is two different components for carrying out the fpga chip of image procossing that can mention, and is respectively at two of split type setting
In component units, fpga chip herein is to be located at tiny cells part, and the FPGA subsequently mentioned is then to be located at main control unit
Part), digital imaging unit 11 is used for reference object, and programmable logic device (CPLD) 12 passes through winding displacement with digital imaging unit 11
Or plug-in unit connection (for example, CCD/CMOS chips can be arranged on programmable logic device (CPLD) on one piece of mainboard), it can compile
Journey logic device (CPLD) 12 is used to the parallel signal that digital imaging unit 11 exports being converted to serial signal, and serial signal passes through
LVDS connection cables are transferred to image processing unit, and image processing unit can be FPGA (Field-Programmable Gate
Array) main control processor (such as the FPGA of Xilinx companies：) or DSP (Digital Signal Spartan-6
Processing) main control processor (such as the DSP of TI companies：TMS320C6713).
As a preferred embodiment, digital imaging unit 1 includes CMOS chip or CCD chip (such as Onsen
(ON Semiconductor)CMOS：PYTHON 300, Sharp (SHARP) CCD：RJ33B4AD0DT).
As a preferred embodiment, image acquiring device 1 further includes signal amplification unit, signal amplification unit
(such as signal amplifier/cable drive of TI companies：CLC006 it) is used for the output signal of programmable logic device (CPLD)
It is exported after amplification.
In said program, by designing a kind of completely new industrial camera, one is added on the basis of digital imaging unit 11
A programmable logic device (CPLD) 12, programmable logic device (CPLD) 12 are a kind of CPLD (Complex Programable
Logic Device) chip, the programmable logic device (CPLD) be specifically used to conversion digital imaging unit 11 output signal, will
Parallel signal turns serial signal, and serial signal can be transferred to the FPGA main control processors or DSP main control processors of rear end.Number
Imaging unit 11 includes CCD or CMOS (being all digital imagery).In this way, the image acquiring device 1 can and image processing unit
Separation, industrial camera can minimize, and the structure size of industrial camera has significant impact to the design intelligently equipped, smaller
Skilful imaging moiety is better to high speed, high-precision, stability and the compactedness entirely intelligently equipped, can more reduce setting of intelligently equipping
The performance counted manufacturing cost, improve equipment, to promote the competitiveness intelligently equipped.On the other hand, image processing unit can be with
The signal that multiple images acquisition device transmits is handled simultaneously, makes full use of computing resource.
Certainly, the image acquiring device in the industrial camera of the present embodiment further includes input interface, output interface, and output connects
Mouthful for connect with LVDS cables, so as to by transformed serial signal transfer, in addition, image acquiring device can also include delaying
Memory cell is used to improve buffer memory capacity, improves treatment effeciency or speed etc., optionally, also can be in image procossing
Buffer unit is arranged in unit, to improve the efficiency of image procossing.
It should be added that involved in above-described embodiment to chip can purchase specific chip currently on the market
Product, such as：
For the sensitive chip of imaging unit, such as following product can be selected from：
Onsen (ON Semiconductor) CMOS:PYTHON 300、PYTHON 480、PYTHON 500、
PYTHON1300；Sharp (SHARP) CCD：RJ33B4AD0DT, RJ33J4AD0DT, RJ333CAD0DT etc..
Turn the product of serial signal for carrying out parallel signal, such as following product can be selected from：
Xilinx companies CPLD:CoolRunner-II series CPLD, such as XC2C32A, XC2C64A.
The FPGA of Xilinx companies：The small-sized FPGA, XC3S50 of Spartan-3 series.
Altera corp CPLD:MAX V series CPLD, such as 5M40Z, 5M80Z etc..
For the main control processor of main control unit part, such as following product can be selected from：
FPGA ((Field-Programmable Gate Array)) main control processor, may be used Xilinx companies
FPGA：Spartan-6, altera corp FPGA, Cyclone IV.
DSP (Digital Signal Processor, digital signal processor)：The DSP of TI companies：TMS320C6713.
Signal amplifying apparatus (cable drive) for example may be used：TI companies：CLC001、CLC006.
The present invention passes through line between the two by the way that image acquiring device to be detached to (distance type separation) with image processing apparatus
Cable connects, so as to which the image processing apparatus minimized setting will be difficult to to intelligently equipping the position that will not be impacted,
And in order to which picture signal to be transmitted by way of cable, programmable logic device (CPLD) or FPGA are introduced, is used
It carries out being converted to serial signal in the picture signal (parallel signal) for obtaining imaging unit, this serial signal can lead to
It crosses such as LVDS connection cables progress and is transferred to image processing unit at a distance.It, can also be into order to meet overlength distance transmission
The introducing signal amplification unit of one step is suitable for the scene of overlength distance transmission by amplifying serial signal.
The description of the aforementioned specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the present invention and its actually answering
With so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (10)
1. a kind of industrial camera, which is characterized in that including image acquiring device and image processing unit, described image acquisition device
It is connected by LVDS connection cables with described image processing unit, described image acquisition device includes digital imaging unit and can compile
Journey logic device (CPLD), the digital imaging unit are used for reference object, the programmable logic device (CPLD) and the number
Imaging unit connects, and the programmable logic device (CPLD) is for being converted to the parallel signal that the digital imaging unit exports
Serial signal, the serial signal are transferred to described image processing unit by the LVDS connection cables.
2. industrial camera according to claim 1, which is characterized in that the digital imaging unit include CMOS chip or
CCD chip.
3. industrial camera according to claim 2, which is characterized in that described image acquisition device further includes that signal amplification is single
Member, the signal amplification unit are used to after amplifying the output signal of the programmable logic device (CPLD) export.
4. industrial camera according to claim 1, which is characterized in that described image acquisition device further include input interface and
Output interface.
5. industrial camera according to claim 1, which is characterized in that described image acquisition device system further includes that caching is single
Member.
6. industrial camera according to claim 1, which is characterized in that described image processing unit is FPGA main control processors
Or DSP main control processors.
7. according to claim 1-6 any one of them industrial cameras, which is characterized in that the programmable logic device (CPLD) with
The digital imaging unit is connected by winding displacement or plug-in unit.
8. according to claim 1-6 any one of them industrial cameras, which is characterized in that described image acquisition device includes using
The pick-up lens of than the C mouthfuls small lens interfaces of diameter.
9. industrial camera according to claim 8, which is characterized in that the lens interface is M12 or S hickeys.
10. industrial camera according to any one of the preceding claims, which is characterized in that use programmable logic device
FPGA replaces the programmable logic device (CPLD).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810828712.0A CN108668084A (en) | 2018-07-25 | 2018-07-25 | Industrial camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810828712.0A CN108668084A (en) | 2018-07-25 | 2018-07-25 | Industrial camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108668084A true CN108668084A (en) | 2018-10-16 |
Family
ID=63789561
Family Applications (1)
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| CN201810828712.0A Pending CN108668084A (en) | 2018-07-25 | 2018-07-25 | Industrial camera |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821682Y (en) * | 2005-03-10 | 2006-09-27 | 中国科学院自动化研究所 | Distributed type video processor |
| CN101662671A (en) * | 2009-09-10 | 2010-03-03 | 中国科学院长春光学精密机械与物理研究所 | Method based on FPGA for transmitting images of multiple digital cameras |
| CN102186012A (en) * | 2011-03-11 | 2011-09-14 | 上海方诚光电科技有限公司 | Digital industrial camera with 1394 interface and use method thereof |
| CN103037147A (en) * | 2011-10-04 | 2013-04-10 | 富士机械制造株式会社 | Camera device |
| CN104135601A (en) * | 2014-07-18 | 2014-11-05 | 北京计算机技术及应用研究所 | User customizable camera and general camera system thereof |
| CN104881390A (en) * | 2015-05-11 | 2015-09-02 | 杭州奕霖传感科技有限公司 | Method for reducing number of cables through interconversion between parallel bus and serial bus |
-
2018
- 2018-07-25 CN CN201810828712.0A patent/CN108668084A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821682Y (en) * | 2005-03-10 | 2006-09-27 | 中国科学院自动化研究所 | Distributed type video processor |
| CN101662671A (en) * | 2009-09-10 | 2010-03-03 | 中国科学院长春光学精密机械与物理研究所 | Method based on FPGA for transmitting images of multiple digital cameras |
| CN102186012A (en) * | 2011-03-11 | 2011-09-14 | 上海方诚光电科技有限公司 | Digital industrial camera with 1394 interface and use method thereof |
| CN103037147A (en) * | 2011-10-04 | 2013-04-10 | 富士机械制造株式会社 | Camera device |
| CN104135601A (en) * | 2014-07-18 | 2014-11-05 | 北京计算机技术及应用研究所 | User customizable camera and general camera system thereof |
| CN104881390A (en) * | 2015-05-11 | 2015-09-02 | 杭州奕霖传感科技有限公司 | Method for reducing number of cables through interconversion between parallel bus and serial bus |
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Application publication date: 20181016 |
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