CN107197239A - One kind based on taking the photograph IMAQ test device Ethernet optical fiber more - Google Patents
One kind based on taking the photograph IMAQ test device Ethernet optical fiber more Download PDFInfo
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- CN107197239A CN107197239A CN201710547265.7A CN201710547265A CN107197239A CN 107197239 A CN107197239 A CN 107197239A CN 201710547265 A CN201710547265 A CN 201710547265A CN 107197239 A CN107197239 A CN 107197239A
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- optical fiber
- photograph
- imaq
- fpga
- ethernet optical
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
Abstract
The invention discloses one kind based on IMAQ test device is taken the photograph Ethernet optical fiber, belonging to mobile phone camera technical field of measurement and test more.Prior art realizes the IMAQ of two cameras by DVP image acquisition units, and easily disturbed, speed can not also accomplish very high.Further carried out data transmission by USB3.0, its transmission range influences it to apply no more than 0.5m, and USB data transmission is easily caused data distortion, causes the error of test result larger.The present invention is acquired by MIPI DPHY or CPHY to the image of camera, and its transmission rate is applied widely up to 1Gbit/ seconds.The present invention carries out data interaction by Ethernet optical fiber, and because optical fiber transmission has bandwidth, strong antijamming capability, fidelity is high, can reduce test error, and length is unrestricted, disclosure satisfy that various data interaction needs.
Description
Technical field
The present invention relates to one kind based on IMAQ test device is taken the photograph Ethernet optical fiber, belonging to mobile phone camera test skill more
Art field.
Background technology
In the mobile communication epoch, mobile phone becomes the requirement of people's life, and a mobile phone is imaged from one before 5 years
Front and rear two cameras of head finally, then three cameras till now, and four following even more many, the mobile phones
Take the photograph becomes inevitable trend more.It is take the photograph in assembling to ensure the axialities of camera and apart from, it is necessary to by while lighting more
Image, is carried out calibrated to camera；And taken the photograph the calibrated needs of HDC while going out figure, the positional information and depth of multi-cam more
The burnings such as information enter internal storage space, cause the requirement also more and more higher to taking the photograph IMAQ test device more.
Chinese patent (application number CN201610948805.8) discloses a kind of many frame buffers pair and taken the photograph with test card is surveyed, and wraps
Include：FPGA, detection module, data interaction module, interface module and open short block；The FPGA has 4 DDR, and institute
Stating FPGA has DVP image acquisition units, LVDS image decoding units；The detection module and the I2C/ inside the FPGA
GPIO control modules are connected；The data interaction module is integrated in the FPGA, and is carried out data transmission with host computer.Institute
Data interaction module is stated by cypress3014 chips with the host computer to carry out data transmission.The cypress3014 chips
Carried out data transmission between the host computer by USB3.0.
The IMAQ of two cameras is realized in above-mentioned technical proposal by DVP image acquisition units, DVP is and oral instructions
It is defeated, easily it is disturbed, and DVP interfaces are restricted in terms of signal integrity, and speed can not also accomplish very high.Further, institute
State and carried out data transmission between cypress3014 chips and the host computer by USB3.0.Although USB3.0 maximum rates will
5Gb/s is reached, but two thecamera head requirements can only be met, it is impossible to test is lighted simultaneously applied to multiple cameras, and
And its transmission range influences it to apply no more than 0.5m, and USB data transmission is easily caused data distortion, causes test
As a result error is larger.
The content of the invention
For the defect of prior art, test can be lighted using multiple cameras it is an object of the invention to provide one kind
Long-distance data transmission data be difficult distortion based on taking the photograph IMAQ test device Ethernet optical fiber more.
To achieve the above object, the technical scheme is that：
One kind based on taking the photograph IMAQ test device Ethernet optical fiber more, including is obtained for the image for obtaining camera image
Modulus block, the FPGA for data processing, the data interaction module for carrying out data interaction with host computer, the data interaction
Module includes Ethernet optical fiber and is connected to the interface module of Ethernet optical fiber end, the interface module include can with it is upper
The position machine first interface carried out data transmission, the second interface that can carry out data transmission with FPGA.
The present invention carries out data interaction by Ethernet optical fiber, because optical fiber transmission has bandwidth, strong antijamming capability, fidelity
Degree is high, can reduce test error, and length is unrestricted, disclosure satisfy that various data interaction needs.
As optimization technique measure, the Ethernet optical fiber is 10,000,000,000 optical fiber, and its transmission rate is 40Gbps, is coped with
The collecting test task of multiple cameras.
As optimization technique measure, described image acquisition module is that DPHY image collection modules and/or CPHY images are obtained
Module, described image acquisition module is connected with FPGA, and the CPHY image collection modules are 2 line binary system difference, CPHY figures
As acquisition module is 3 line quinary difference.FPGA can not only decode DPHY image collection modules, can also decode CPHY images
Acquisition module signal, and support the camera of two different agreements to light simultaneously, it is easy to different types of camera module analysis pair
Than image, contrast images quality two-by-two is more easily constantly evaluated.
The present invention is acquired by MIPI DPHY or CPHY to the image of camera, and MIPI is low-voltage differential serial ports,
CLKP/N, DATAP/N interface are only needed to, maximum supports 4-lane.Interface signal line of the MIPI interfaces than DVP is few, due to being low
Pressure difference sub-signal, the interference of generation is small, and antijamming capability is also strong.Above all DVP interfaces are limited in terms of signal integrity
System, speed is also restricted, and 500W can also use DVP reluctantly, and 800W and the above can not be applicable.And DPHY image collection modules are transmitted
Speed was up to 1Gbit/ seconds, and the scope of application is wider.
As optimization technique measure, 10,000,000,000 optical fiber and two DPHY image collection modules and/or CPHY images are obtained
Module is engaged transmission data.
As optimization technique measure, the second interface is connected with FPGA XC7K160T GTX mouths.
As optimization technique measure, the GTX mouths of the FPGA are connected with the second interface of four Ethernet optical fiber, described
FPGA LVDS mouths are connected with 8 DPHY image collection modules.
As optimization technique measure, the CPHY image collection modules transmission rate is 17.1G, and the FPGA has 4
DDR3,64Gbps caching literacy, can receive the double data for taking the photograph CPHY image collection modules of 34.2G.The big side of internal memory one
Face be used for cached image data, on the other hand can also multiframe caching image data, big caching capabilities can be with Coutinuous store
View data is double to take the photograph 15fps, and the caching capabilities of continuous multiple frames can be used for calculating and be calculated by way of frame as PD focusings
Time, calculate the run duration of external device, anti-shudder performance for calculating OIS (optical anti-vibration) product etc., it is adaptable to contrast
Exposure and global exposure are directed to the difference between moving object line by line.
As optimization technique measure, the FPGA, which is provided with, to be used to decode double DPHY image collection modules and/or double CPHY figures
As the decoder of acquisition module signal, the decoder supports the camera of two kinds of different agreements simultaneously or separately to light.
As optimization technique measure, the decoder is the MC20901 of decodable code MIPI signals, and MC20901 is modularization
Matured product, can directly be purchased, input cost is low.
As optimization technique measure, the FPGA is provided with unique ID, and host computer is according to unique ID control correspondences
FPGA.FPGA possesses unique ID, supports many FPGA of single host computer with surveying, host computer can control correspondence FPGA according to unique ID
With the test information for collecting corresponding camera.
Compared with prior art, the invention has the advantages that：
The present invention carries out data interaction by Ethernet optical fiber, because optical fiber transmission has bandwidth, strong antijamming capability, fidelity
Degree is high, can reduce test error, and length is unrestricted, disclosure satisfy that various data interaction needs.
The present invention is acquired by MIPI DPHY or CPHY to the image of camera, and MIPI is low-voltage differential serial ports,
CLKP/N, DATAP/N interface are only needed to, maximum supports 4-lane.Interface signal line of the MIPI interfaces than DVP is few, due to being low
Pressure difference sub-signal, the interference of generation is small, and antijamming capability is also strong.Above all DVP interfaces are limited in terms of signal integrity
System, speed is also restricted, and 500W can also use DVP reluctantly, and 800W and the above can not be applicable.And DPHY image collection modules are transmitted
Speed was up to 1Gbit/ seconds, and the scope of application is wider.
Brief description of the drawings
Fig. 1 is structure flow chart of the present invention；
A kind of couple of Fig. 2-1 present invention takes the photograph example structure schematic diagram；
The GTX connection diagrams of Fig. 2-2CPHY image collection modules, DPHY image collection modules and FPGA；
Fig. 2-3 pairs are taken the photograph DPHY image collection modules and FPGA connection diagrams；
Fig. 2-4DDR3 and FPGA part connection diagram；
Fig. 2-5 is used for the circuit diagram of power supply supply and testing current；
Fig. 2-6 opens short-circuit overall loop schematic diagram；
Fig. 2-7 image measurement circuit diagrams；
A kind of structural representation that eight mobile phone cameras are tested of Fig. 3-1 present invention；
- 2GTX mouthfuls and 4 Ethernet optical fiber connection diagrams of Fig. 3；
The DPHY that Fig. 3-3 pairs of eight mobile phone cameras are tested and FPGA connection diagrams；
Fig. 4 Ethernet optical fiber cloud handles connection diagram.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
On the contrary, the present invention covers any replacement done in the spirit and scope of the present invention being defined by the claims, repaiied
Change, equivalent method and scheme.Further, in order that the public has a better understanding to the present invention, below to the thin of the present invention
It is detailed to describe some specific detail sections in section description.Part without these details for a person skilled in the art
Description can also understand the present invention completely.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element be referred to as " directly existing " another element " on " when,
In the absence of intermediary element.Term as used herein " vertically ", " level ", "left", "right" and similar statement are
For illustrative purposes.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term as used herein is intended merely to describe the purpose of specific embodiment, no
It is intended to the limitation present invention.Term as used herein " and/or " include the arbitrary of one or more related Listed Items
With all combinations.
As shown in figure 1, it is a kind of based on taking the photograph IMAQ test device Ethernet optical fiber more, including for obtaining camera figure
The image collection module of picture, the FPGA for data processing, the data interaction module for carrying out data interaction with host computer, use
In the cloud processor module of image data storage and integrated treatment.The host computer is entered by Wi-Fi with cloud processing module
Row data transfer, described image acquisition module is DPHY image collection modules and/or CPHY image collection modules, and described image is obtained
Modulus block is connected with FPGA, and the data interaction module includes Ethernet optical fiber and is connected to connecing for Ethernet optical fiber end
Mouthful component, first interface that the interface module includes with host computer can carrying out data transmission, can carry out data with FPGA
The second interface of transmission.
The present invention is acquired by MIPI DPHY or CPHY to the image of camera, and MIPI is low-voltage differential serial ports,
CLKP/N, DATAP/N interface are only needed to, maximum supports 4-lane.Interface signal line of the MIPI interfaces than DVP is few, due to being low
Pressure difference sub-signal, the interference of generation is small, and antijamming capability is also strong.Above all DVP interfaces are limited in terms of signal integrity
System, speed is also restricted, and 500W can also use DVP reluctantly, and 800W and the above can not be applicable.And DPHY image collection modules are transmitted
Speed was up to 1Gbit/ seconds, and the scope of application is wider.
The present invention carries out data interaction by Ethernet optical fiber, because optical fiber transmission has bandwidth, strong antijamming capability, fidelity
Degree is high, can reduce test error, and length is unrestricted, disclosure satisfy that various data interaction needs.
The FPGA can be provided with wireless transport module, and the wireless transport module directly gives cloud processor by wireless network
Module transfer data.Using cloud processing module, the utilization rate of background processor can be effectively lifted, whole piece streamline backstage is reduced
The quantity of processor, and camera monomeric character information cloud is stored.Because the assembling between each product, material are to have differences
, taken the photograph especially for double, it is necessary to be demarcated to each camera feature.During for the mobile phone release of new products, algorithm is imaged
Not necessarily achieve most preferably, picture feature information is stored in cloud processing module in production, be easy to timely adjustment algorithm, lift big data
The spreadability of statistic algorithm, brings higher image quality to experience to user.Final reduction camera product test cost, realizes production
The unmanned target in workshop.
The CPHY image collection modules are 2 line binary system difference, and CPHY image collection modules are 3 line quinary difference.
FPGA can not only decode DPHY image collection modules, can also decode CPHY image collection module signals, and support two not
Camera with agreement is lighted simultaneously, is easy to different types of camera module analysis contrast images, is more easily constantly evaluated two
Two contrast images quality.The CPHY image collection modules transmission rate is 17.1G, and the FPGA has 4 DDR3,64Gbps
Caching literacy, the double data for taking the photograph CPHY image collection modules of 34.2G can be received.On the one hand big internal memory is used to delay at a high speed
Deposit view data, on the other hand can also multiframe caching image data, big caching capabilities can take the photograph so that Coutinuous store view data is double
15fps, the caching capabilities of continuous multiple frames can be used for calculating the time calculated by way of frame as PD focusings, calculate outer
The run duration of boundary's equipment, anti-shudder performance for calculating OIS (optical anti-vibration) product etc., it is adaptable to which contrast exposes and complete line by line
Office's exposure is directed to the difference between moving object.
The FPGA, which is provided with, to be used to decode double DPHY image collection modules and/or the solution of double CPHY image collection modules signals
Code device, the decoder supports the camera of two kinds of different agreements simultaneously or separately to light.The decoder is decodable code
The MC20901 of MIPI signals.
The FPGA is provided with unique ID, and host computer controls the correspondence FPGA according to unique ID.
FPGA shell is improved, FPGA power consumption is higher, but since it is considered that the product such as OIS needs to ensure
FPGA does not shake, therefore the heat dissipation design of shell is most important, and we employ radiating scale design in this secondary design.
The embodiment of dual camera is tested as shown in Fig. 2-1,2-2,2-3,2-4,2-5, passes through FPGA XC7K355T's
GTX mouthfuls (2.5Gbps) receives CPHY image collection modules, the data of DPHY image collection modules, passes through FPGA XC7K355T's
LVDS (1.25G) receives the view data of DPHY image collection modules.
Realize that host computer is interacted with FPGA by Ethernet optical fiber interface, and double view data taken the photograph are uploaded in real time
Position machine and realize it is double take the photograph modules can with surveying, while light, while focusing, while burning information etc..And support it is double take the photograph two-by-two compared with
It is accurate.FPGA supports spi and two road i2c, supports that 12 road power supply numerals are adjustable, supports electric current and open-short circuit.FPGA possesses only
One ID, supports many FPGA of single host computer with surveying, host computer can control correspondence FPGA according to unique ID and collect corresponding take the photograph
As the test information of head.
As shown in Fig. 2-6,2-7, the collecting test device is provided with open-short circuit module, to CPHY image collection modules
Or DPHY image collection modules and other all PINs such as PWDN, MCLK, I2C etc. are detected, when camera product has connection
During defect of bad or product itself, when even chip is breakdown, it can be detected.
A kind of that eight mobile phone cameras are tested as shown in Fig. 3-1,3-2,3-3, the Ethernet optical fiber is ten thousand
Million optical fiber, its transmission rate is 40Gbps.Piece 10,000,000,000 optical fiber and two DPHY image collection modules and/or CPHY images are obtained
Module is engaged transmission data.The second interface is connected with FPGA XC7K160T GTX mouths.The GTX mouths and four of the FPGA
The second interface of root Ethernet optical fiber is connected, and the LVDS mouths of the FPGA are connected with 8 DPHY image collection modules.FPGA
Spi and two road i2c can be supported, supports that 12 road power supply numerals are adjustable, supports electric current and open-short circuit, meet various test need
Will.
The present invention supports eight to take the photograph with lighting, and supports 40 road power supply supplies and testing current and requires to possess 500mA per road electricity
Electric current above, and require that power supply is that 0.9V--3.8V numerals are adjustable, possess independent clock supply, possess independent I2C and match somebody with somebody
Put, and provided with open-short circuit module.
A kind of cloud Processing Example as shown in Figure 4, view data is transferred to interchanger by ten thousand mbit ethernet optical fiber, then leads to
Cross interchanger and enter server, enter cloud processing module eventually through wireless communication module, can effectively lift background processor
Utilization rate, reduce whole piece streamline server quantity, and to camera monomeric character information cloud store, be easy in time adjustment
Image algorithm, lifts the spreadability of big data statistic algorithm, brings higher image quality to experience to user.Final reduction camera production
Product testing cost, realizes the unmanned target of workshop.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. one kind based on taking the photograph IMAQ test device Ethernet optical fiber more, including is obtained for the image for obtaining camera image
Module, the FPGA for data processing, the data interaction module for carrying out data interaction with host computer, it is characterised in that institute
Stating data interaction module includes Ethernet optical fiber and is connected to the interface module of Ethernet optical fiber end, the interface module bag
Include the first interface that can carry out data transmission with host computer, the second interface that can carry out data transmission with FPGA.
2. it is as claimed in claim 1 a kind of based on taking the photograph IMAQ test device Ethernet optical fiber, it is characterised in that described more
Ethernet optical fiber is 10,000,000,000 optical fiber, and its transmission rate is 40Gbps.
3. it is as claimed in claim 2 a kind of based on taking the photograph IMAQ test device Ethernet optical fiber, it is characterised in that described more
Image collection module is DPHY image collection modules and/or CPHY image collection modules, described image acquisition module and FPGA phases
Connection, the CPHY image collection modules are 2 line binary system difference, and CPHY image collection modules are 3 line quinary difference.
4. it is as claimed in claim 3 a kind of based on taking the photograph IMAQ test device Ethernet optical fiber, it is characterised in that one more
10000000000 optical fiber are engaged transmission data with two DPHY image collection modules and/or CPHY image collection modules.
5. it is as claimed in claim 1 a kind of based on taking the photograph IMAQ test device Ethernet optical fiber, it is characterised in that described more
Second interface is connected with FPGAXC7K160TGTX mouthfuls.
6. it is as claimed in claim 5 a kind of based on taking the photograph IMAQ test device Ethernet optical fiber, it is characterised in that described more
FPGA GTX mouths are connected with the second interface of four Ethernet optical fiber, and the LVDS mouths of the FPGA are obtained with 8 DPHY images
Module is connected.
7. one kind as described in claim 1-6 is any is based on taking the photograph IMAQ test device Ethernet optical fiber more, its feature exists
In the CPHY image collection modules transmission rate is 17.1G, and the FPGA has 4 DDR3,64Gbps caching read-write energy
Power, can receive the double data for taking the photograph CPHY image collection modules of 34.2G.
8. it is as claimed in claim 7 a kind of based on taking the photograph IMAQ test device Ethernet optical fiber, it is characterised in that described more
FPGA is provided with the decoder for being used for decoding double DPHY image collection modules and/or double CPHY image collection modules signals, the solution
Code device supports the camera of two kinds of different agreements simultaneously or separately to light.
9. it is as claimed in claim 8 a kind of based on taking the photograph IMAQ test device Ethernet optical fiber, it is characterised in that described more
Decoder is the MC20901 of decodable code MIPI signals.
10. it is as claimed in claim 9 a kind of based on taking the photograph IMAQ test device Ethernet optical fiber, it is characterised in that institute more
FPGA is stated provided with unique ID, host computer controls the correspondence FPGA according to unique ID.
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| CN201710547265.7A CN107197239A (en) | 2017-07-06 | 2017-07-06 | One kind based on taking the photograph IMAQ test device Ethernet optical fiber more |
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| CN201710547265.7A CN107197239A (en) | 2017-07-06 | 2017-07-06 | One kind based on taking the photograph IMAQ test device Ethernet optical fiber more |
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