CN109996036A - Image Acquisition and high speed processing Transmission system and method for tokamak - Google Patents
Image Acquisition and high speed processing Transmission system and method for tokamak Download PDFInfo
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- CN109996036A CN109996036A CN201910204137.1A CN201910204137A CN109996036A CN 109996036 A CN109996036 A CN 109996036A CN 201910204137 A CN201910204137 A CN 201910204137A CN 109996036 A CN109996036 A CN 109996036A
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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
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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Abstract
The invention belongs to Plasma picture data acquisition and procession technical fields, especially a kind of Image Acquisition for tokamak and high speed processing Transmission system and method, the system include master control, data acquisition industrial personal computer, data switching exchane, data processing server and data storage server；Wherein, the described data acquisition industrial personal computer, data processing server, be separately installed with a reflective memory card on data storage server, each reflective memory card passes through optical fiber and is connected to the data switching exchane；The data of each data acquisition industrial personal computer acquisition, which are shared by data switching exchane to data processing server, to be handled, then the data after the completion of handling via data processing server are transferred in the local memory of the data storage server by data switching exchane；Stable system performance provided by the invention is reliable, strong antijamming capability, and real-time is high；Using the data sharing network of high speed, the efficiency of researcher's Parallel Processing and Analysis data is greatly accelerated.
Description
Technical field
It is especially a kind of for tokamak the invention belongs to Plasma picture data acquisition and procession technical field
Image Acquisition and high speed processing Transmission system and method.
Background technique
Tokamak device is a kind of device that controlled nuclear fusion is realized using magnetic confinement, the main science of this kind of device
Target is high parameter steady-state operation and the research related physical and engineering problem of realization device.During the experiment, due to etc.
The gas ions high speed rotation in portion and owned high-energy in the device, so that the plasma by weaker constraint is easy
It is detached from magnetic confinement, it is uncontrolled.Plasma inside device is unfettered, when carrying out irregular movement, it is easy to straight
It connects and collides device inner surface, causing device inner surface to be badly damaged even influences the progress of electric discharge.This just puts to plasma
Being normally carried out for electricity experiment brings serious security risk.Therefore, it is necessary to which real-time monitoring plasma is in tokamak device
Discharge process state, so as to adjust related experiment parameter guarantee plasma long-time electric discharge.
Currently, widely used device internal state image real-time monitoring system all uses high speed in tokamak device
Camera obtains the high-speed cruising state of discharge process plasma.Due to, tokamak device annular or spherical special
The limited field of physical structure and every camera so that camera can not all images inside acquisition device, so must
Whole device inner space image must could be obtained using at least three cameras, as shown in Figure 2.Individually using more cameras
The image under different perspectives is obtained, if handled without image mosaic etc., the phenomenon of isolating of spatial image is unfavorable for testing people
Part status in member's Overall View measuring electric process inside device；Further, since the superelevation frame per second of high speed camera, so that storage
Video data is very huge, and being transferred to other servers using Ethernet, to do time for consuming when later experiments data are analyzed non-
Chang Duo；Therefore, it is necessary to build a set of big view field image acquisition with high_speed stamping die to solve the above problems.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, provide a kind of Image Acquisition for tokamak with
High speed processing Transmission system, solves that more cameras acquisition images cause overall picture to be isolated and message transmission rate is low asks
Topic.
To achieve the goals above, the present invention is achieved by the following scheme:
A kind of Image Acquisition for tokamak and high speed processing Transmission system, comprising:
Master control, for sending trigger signal；
Data acquire industrial personal computer；Equipped at least three, each data acquisition industrial personal computer is connected to the master control by cable, uses
In receiving the trigger signal and the video data for acquiring the tokamak device internal plasma electric discharge that the master control is sent；
Data switching exchane；
Data processing server, for handling each data acquisition collected data of industrial personal computer, and carry out mathematical computations and
Physical analysis；
Data storage server, for storing result that the data processing server obtains and for checking；
Wherein, the described data acquisition industrial personal computer, data processing server, be separately installed with one on data storage server
Reflective memory card, each reflective memory card pass through optical fiber and are connected to the data switching exchane；
The data of each data acquisition industrial personal computer acquisition, which are shared by data switching exchane to data processing server, to be handled,
The data after the completion of handling via data processing server are transferred to the data storage server by data switching exchane again
Local memory in.
The present invention also provides a kind of Image Acquisition for tokamak and high speed processing transmission method, including following step
It is rapid:
(1) all reflective memory cards and data switching exchane are initialized, is emptied the cache；
(2) operating mode of all reflective memory cards is set are as follows: cycles through data, redundant transmission mode；
(3) each data acquisition industrial personal computer such as is disposed as at the state that the master control to be received sends triggering, and the waiting time is
T1；
(4) in a period of time T 1, respectively pass through the value V for judging triggering state flag bit, responded accordingly:
When the value V of triggering state flag bit is 0, each data acquisition industrial personal computer is continued waiting for；
When the value V of triggering state flag bit is 1, each data acquisition industrial personal computer starts to acquire data, and executes step
(5)；
(5) data volume of fixed size is written in each data acquisition industrial personal computer to respective reflective memory card respectively, meanwhile, respectively
Data acquire industrial personal computer and the data in local reflective memory card are mapped in the data switching exchane by optical fiber；
(6) in a period of time T 2, the data processing server is by judging the first of local reflective memory card
The value M1 of interrupt flag bit, is responded accordingly:
When the value M1 of the first interrupt flag bit is 0, the data processing server continues waiting for the data switching exchane
Map the data of each data acquisition industrial personal computer acquisition；
When the value M1 of the first interrupt flag bit is 1, the data processing server starts to read the data switching exchane
Data of designated position, and carry out respective handling, processing result synchronization map to the data switching exchane, meanwhile, the data
Processing server shows the image data that processing is completed by upper computer software, and executes step (7)；
(7) in a period of time T 3, the data storage server is by judging the second of local reflective memory card
The value M2 of interrupt flag bit, is responded accordingly:
When the value M2 of the second interrupt flag bit is 0, the data storage server continues waiting for the data processing clothes
Business device handles data；
When the value M2 of the second interrupt flag bit is 1, the data storage server passes through local reflective memory card and light
Fibre reads the data after handling in the data switching exchane and is stored in local memory；
Wherein, in the step (6), after the data switching exchane has mapped the data volume of specified size, described
The value M1 of one interrupt flag bit is set to 1 by 0；
In step (7), after the data processing server has handled data, the value M2 of second interrupt flag bit by
0 is set to 1.
Preferably, the T1 is 6000s.
Compared with prior art, the present invention has following technical effect that
1, stable system performance provided by the invention is reliable, strong antijamming capability, and real-time is high；
2, using the data sharing network of high speed, the efficiency of researcher's Parallel Processing and Analysis data is greatly accelerated；
3, in conjunction with upper computer software, the image monitoring of big field range inside tokamak device is realized, to experiment people
Member's analysis plasma discharge phenomenon plays good booster action.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment.
Detailed description of the invention
Fig. 1 is the signal of a kind of Image Acquisition for tokamak provided by the invention and high speed processing Transmission system
Figure；
Fig. 2 is spatial distribution position and visual field schematic diagram of the camera in tokamak device；
Figure label explanation: 1- high speed camera, 2- optical path.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific attached drawing is closed, the present invention is furture elucidated.
As shown in connection with fig. 1, the present invention provides a kind of Image Acquisition for tokamak and high speed processing Transmission system,
Industrial personal computer, data switching exchane, data processing server, data storage server are acquired including master control, data.
Master control is for sending trigger signal；
Data acquire industrial personal computer and are equipped at least three, and each data acquisition industrial personal computer is connected to the master control by cable, use
In receiving the trigger signal and the video data for acquiring the tokamak device internal plasma electric discharge that the master control is sent；
Data switching exchane is mentioned for storing the data of reflective memory card transmission for the reflective memory card of each node rapidly
For reading data interface, the shared of data is realized；
Data processing server carries out mathematical computations and object for handling each data acquisition collected data of industrial personal computer
Reason analysis；
Data storage server is used to store the result that the data processing server obtains and for checking；
Wherein, the described data acquisition industrial personal computer, data processing server, be separately installed with one on data storage server
Reflective memory card, each reflective memory card pass through optical fiber and are connected to the data switching exchane；
The data of each data acquisition industrial personal computer acquisition, which are shared by data switching exchane to data processing server, to be handled,
The data after the completion of handling via data processing server are transferred to the data storage server by data switching exchane again
Local memory in.
The big view field image visual angle that the system provided by the invention is able to achieve is up to 360 °, when the image resolution ratio of acquisition
It is 800 × 600, when size is 1.8MB, the data transmission bauds for being not less than 100MB/s is provided using reflective memory card.
Image Acquisition provided by the invention and high speed processing Transmission system can be used for the entire ring inside tokamak device
To view field image and realizes the quick processing of data and transmit.In general, due to tokamak device annular or spherical spy
Different internal structure so that camera can not all images inside acquisition device, so must be using at least three cameras
Complete device inner space image can be obtained, specifically, phase can be increased according to the window's position and quantity of tokamak device
Machine quantity, different tokamak devices only need to determine the camera number needed according to apparatus structure feature and camera placement position
Amount.Hereinafter, merely with three cameras, the present invention will be described in detail.
In the present invention, pass through image mosaic technology and high-performance data processing based on improved sift image matching algorithm
The plasma discharge image of big visual field quickly splices and realizes number by reflective memory network inside server realization device
According to high-speed transfer.
The working method at the reflective memory network the following steps are included:
(1) all reflective memory card initializations in reflective memory network, empty the cache, prevent data corruption；
(2) operating mode of reflective memory card is set；
(3) first data acquire industrial personal computer, the second data acquisition industrial personal computer and third data acquisition industrial personal computer and (are used as transmitting
End) it is written into the memory of local reflective memory card after the data volume of specified size, start to map data to data switching exchane；
(4) data processing server (being used as receiving end) when the value M1 of the first interrupt flag bit is 1, starts to read number
According to the data of interchanger designated position, and the processing operations such as image mosaic are carried out, the data for handling completion directly pass through host computer
Software interface is shown；
Wherein, the processing operations such as image mosaic include image similarity matching technique, image mosaic technology and noise reduction
With non-linear difference technique；
The function that upper computer software interface is realized includes that image data is shown, data essential information is shown, the reflection of each node
The data transmission bauds of RAM card is shown, image data frame per second is shown and the control option of other data display modes；
(5) data storage server (being used as receiving end) when the value M2 of the second interrupt flag bit is 1, starts to read number
Server local memory is stored according to the data obtained in interchanger through step (4), and by this data.
The present invention provides a kind of Image Acquisition for tokamak and high speed processing transmission method, this method is using upper
State the Image Acquisition that provides for tokamak and high speed processing Transmission system, and specifically includes the following steps:
S1: the first data acquire industrial personal computer, the second data acquisition industrial personal computer and the acquisition industrial personal computer initialization of third data, if
The parameters such as resolution ratio, acquisition frame rate, acquisition duration, the data transmission terminal slogan of acquisition image data are set, master control is waited to send
Trigger signal；
S2: reflective memory card initialization sets initial position and offset address that data are written to memory, and work
Mode waits the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and third data acquisition industrial personal computer that data are written；
S3: data switching exchane initialization empties the data in data switching exchane caching, prepares for transmission new data；
S4: when electric discharge starts, master control is adopted to the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and third data
Collect industrial personal computer and send trigger signal, the value V of triggering state flag bit is set to 1, and the first data acquisition industrial personal computer, the second data are adopted
Collection industrial personal computer and third data acquisition industrial personal computer start to acquire image data according to the parameter of Initialize installation；
It is specified that S5: the first data acquire industrial personal computer, the second data acquisition industrial personal computer and the acquisition industrial personal computer acquisition of third data
While size data, the first data acquire industrial personal computer, the second data acquisition industrial personal computer and the acquisition industrial personal computer acquisition of third data
To data be respectively mapped to the specified position of data switching exchane；
S6: the first data acquire the number of industrial personal computer, the second data acquisition industrial personal computer and the acquisition industrial personal computer acquisition of third data
After being all mapped to data switching exchane, the value M1 of the first interrupt flag bit of reflective memory card is set in data processing server
It is 1, at this point, the data that designated position in data switching exchane stores are written in itself reflective memory card simultaneously data processing server
Start to carry out image procossing；
S7: data processing server is filtered the pretreatment such as noise reduction to the image data in local reflective memory card；
S8: data processing server adopts the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and third data
The collection collected data of industrial personal computer do the calculating of image local area similarity mode；
S9: data processing server screens the matching result in step S8 using similarity evaluation function, saves
Characteristic point；
S10: data processing server acquires work to the first data acquisition industrial personal computer, the second data according to the result of step S9
Control machine and the collected data of third data acquisition industrial personal computer carry out image mosaic processing, and the result obtained after image mosaic passes through
Host computer interface is shown；
S11: the function that host computer interface is realized in data processing server, including data are shown, image refreshing frame per second, figure
As data essential information and data transmission bauds etc.；
S12: after data processing server completes image mosaic, processing result is written in itself reflective memory card, with this
Meanwhile the position that data switching exchane specifies treated result synchronization map to own cache area；
S13: after data switching exchane completes the data mapping in step S12, reflective memory card in data storage server
The value M2 of second interrupt flag bit is set to 1, at this point, data storage server is specified from data switching exchane using reflective memory card
Position read into data processing server processing complete data and write service device local storage space.
In the present invention, reflective memory card is the high-speed transfer for realizing data, improves the operational efficiency of whole system；Instead
The operating mode for penetrating RAM card is flexible and changeable, including cycles through data/redundant transmission mode and acyclic transmission data/non-
Redundant transmission mode；Wherein, the data that cycle through refer to repeatedly transmission data, acyclic transmission number (much larger than primary)
A data are only sent according to referring to；Redundant transmission mode refers to that each data for being used to transmission can be successively by (transmitting terminal is anti-
Penetrate RAM card) it sends twice, the reception circuit of receiving end reflective memory card assesses each data transmission.If in first time data
In transmission, the reception circuit of receiving end reflective memory card does not detect mistake, then the data of transmission will be retained for the first time,
The data of second of transmission will be dropped；If the reception circuit of receiving end reflective memory card is examined in the transmission of first time data
Mistake is measured, then the data of transmission will be dropped for the first time, the data of second of transmission will be retained.Nonredundancy transmission mode
Refer to: the data for being each used to transmission can only be sent once by (transmitting terminal reflective memory card).Receiving end reflective memory card connects
Current data transmission will not be assessed by receiving circuit, and default is considered as no mistake.Therefore, more than the work of reflective memory card is transmitted in nonredundancy
It is faster than the transmission speed to work in redundant transmission mode when mode, but the accuracy of data can reduce.Comprehensively consider, is true
The accuracy of data transmission is protected, the operating mode of reflective memory card need to be set as redundant transmission mode.
Basic principles and main features and the features of the present invention of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement is both fallen in the range of claimed invention.The scope of protection of present invention is by appended claims
And its equivalent thereof.
Claims (4)
1. a kind of Image Acquisition for tokamak and high speed processing Transmission system characterized by comprising
Master control, for sending trigger signal；
Data acquire industrial personal computer；Equipped at least three, each data acquisition industrial personal computer is connected to the master control by cable, for connecing
It receives the trigger signal that the master control is sent and acquires the video data of the tokamak device internal plasma electric discharge；
Data switching exchane；
Data processing server for handling each data acquisition collected data of industrial personal computer, and carries out mathematical computations and physics
Analysis；
Data storage server, for storing result that the data processing server obtains and for checking；
Wherein, the described data acquisition industrial personal computer, data processing server, be separately installed with a reflection on data storage server
RAM card, each reflective memory card pass through optical fiber and are connected to the data switching exchane；
The data of each data acquisition industrial personal computer acquisition, which are shared by data switching exchane to data processing server, to be handled, then will
Data after the completion of handling via data processing server are transferred to the sheet of the data storage server by data switching exchane
In ground memory.
2. a kind of Image Acquisition for tokamak and high speed processing transmission method, which is characterized in that using such as claim 1
The Image Acquisition and high speed processing Transmission system for tokamak.
3. the Image Acquisition according to claim 2 for tokamak and high speed processing transmission method, which is characterized in that
The following steps are included:
(1) all reflective memory cards and data switching exchane are initialized, is emptied the cache；
(2) operating mode of all reflective memory cards is set are as follows: cycles through data, redundant transmission mode；
(3) each data acquisition industrial personal computer such as is disposed as at the state that the master control to be received sends triggering, the waiting time T1；
(4) in a period of time T 1, respectively pass through the value V for judging triggering state flag bit, responded accordingly:
When the value V of triggering state flag bit is 0, each data acquisition industrial personal computer is continued waiting for；
When the value V of triggering state flag bit is 1, each data acquisition industrial personal computer starts to acquire data, and executes step (5)；
(5) data volume of fixed size is written in each data acquisition industrial personal computer to respective reflective memory card respectively, meanwhile, each data
Data in local reflective memory card are mapped in the data switching exchane by acquisition industrial personal computer by optical fiber；
(6) in a period of time T 2, the data processing server is interrupted by judging the first of local reflective memory card
The value M1 of flag bit, is responded accordingly:
When the value M1 of the first interrupt flag bit is 0, the data processing server continues waiting for the data switching exchane mapping
The data of each data acquisition industrial personal computer acquisition；
When the value M1 of the first interrupt flag bit is 1, it is specified that the data processing server starts to read the data switching exchane
Data of position, and carry out respective handling, processing result synchronization map to the data switching exchane, meanwhile, the data processing
Server shows the image data that processing is completed by upper computer software, and executes step (7)；
(7) in a period of time T 3, the data storage server is interrupted by judging the second of local reflective memory card
The value M2 of flag bit, is responded accordingly:
When the value M2 of the second interrupt flag bit is 0, the data storage server continues waiting for the data processing server
Handle data；
When the value M2 of the second interrupt flag bit is 1, the data storage server passes through local reflective memory card and reading fiber
It takes the data after handling in the data switching exchane and is stored in local memory；
Wherein, in the step (6), after the data switching exchane has mapped the data volume of specified size, in described first
The value M1 of disconnected flag bit is set to 1 by 0；
In step (7), after the data processing server has handled data, the value M2 of second interrupt flag bit is by 0 quilt
It is set to 1.
4. the Image Acquisition according to claim 3 for tokamak and high speed processing transmission method, which is characterized in that
The T1 is 6000s.
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