CN102201908B - EAST central timing system based on PXI (extension for instrumentation) - Google Patents
EAST central timing system based on PXI (extension for instrumentation) Download PDFInfo
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Abstract
The invention discloses an EAST central timing system based on PXI (extension for instrumentation), comprising a master control computer, a database server, PXI master nodes, PXI partial nodes and a separated driver which accesses to the PXI master nodes and the PXI partial nodes, wherein the master control computer, the database server, the PXI master nodes and the PXI partial nodes access to anEAST local area network respectively. In the system, a LabVIEWFPGA technology is adopted, thus system functions are upgraded more flexibly and conveniently. The system can be used to provide nanosecond-level clock signals and trigger signals with adjustable pulse width, selectable polarity and controllable enabling property, and is provided with an event trigger function, a signal acquisition function and a system self-checking function. The system can realize clock synchronization and trigger synchronization among partial nodes accurately and is convenient to expand. In the system, PXI industrial products are selected, and a virtual instrument technology is utilized to realize information interaction between hardware equipment and application programs seamlessly.
Description
Technical field
The present invention relates to the controlled nuclear fusion device of EAST tokamak field, be specially a kind of EAST central authorities timing system based on PXI.
Background technology
Along with the fast development of economic society, the excessive development and use of fossil energies such as coal, oil, natural gas, also will administer environmental problems such as air pollution, ecological disruption human future soon except facing fuel crunch, the crisis of resource exhaustion equal energy source.The sustainable development of coordinating the energy and environment is the current key subjects that face of China.
Countries in the world present situation in the ascendant to the development and utilization of cleaning new energy.The inexhaustible controllable thermonuclear fusion of cleaning, safety and raw material gets more and more people's extensive concerning, and might become human alternative energy source in the middle of this century.The bigger controlled nuclear fusion reaction device of feasibility is exactly tokamak device at present, it comprises a plurality of sophisticated subsystems such as vacuum, low temperature, power supply, diagnosis, the sequential working that these subsystems only arrange according to timing system could realize accurate operation and the regular picture of tokamak fusion facility.For example, the MAST tokamak of Britain has realized accurate synchronous triggering output by distributed triggering and the sequential system of VME and CAMAC exploitation.Adopt triggering and the sequential system of tree topology to provide time synchronizing signal by central location to all satellite nodes.Central location comprises at least one reflector element and a plurality of event and synchronous reflection module, and event and synchronous reflection module reach event and pulse module by optical fiber with triggering signal, thereby start its inner time counter, also start predefined static timing sequence simultaneously.The HT-7 tokamak device of China has then been set up distributed timing and triggering system based on VXI, has adopted similar topological structure to realize regularly and synchronizing function.
Along with PXI in recent years progressively becomes the mainstream standard of modular instrument, some test macro suppliers advanced in the world develop various PXI peripheral modules one after another, total cost and development time that the industrial standard characteristic of while PXI can reduce system, strengthen systematic function and bandwidth, so be subjected to the extensive favor of industry and as the ideal platform of virtual instrument thermometrically, realized the demand exploitation of various cases, had broad application prospects.
By the retrieval to patent database, find not have research institution to use PXI technological development timing triggering system and be applied to come the input time series of each subsystem of accurate timing in the Tokamak nuclear fusion experiment.Therefore, based on the development of (EAST) central timing system of PXI, to the tokamak experiment have important Research Significance smoothly, also provide important value for this system in the application of other field simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of EAST central authorities timing system based on PXI, in the tokamak Physical Experiment, for a plurality of subsystems that are distributed in diverse geographic location provide accurate clock signal, guarantee that each subsystem is with identical clock reference work; Control subsystem drops in the tokamak experiment accurately according to default sequential, realizes the steady operation of tokamak device; The Event triggered function is provided, if detect signal specific, triggers respective handling mechanism in real time; Whether gather the output signal of native system, it is normal to detect the native system operation.
In order to achieve the above object, the technical solution adopted in the present invention is:
EAST central authorities timing system based on PXI, it is characterized in that: comprise the main control computer that inserts the EAST local area network (LAN) respectively, database server, the PXI host node, the PXI partial node, described main control computer respectively with described database server, the PXI host node, PXI partial node both-way communication connects with bi-directional transfer of data, described PXI host node comprises the PXI cabinet, and be integrated in PXI controller in the PXI cabinet of PXI host node, two PXI counting and timing modules, the multi-functional RIO module of PXI, described PXI partial node comprises the PXI cabinet, and be integrated in PXI controller in the PXI cabinet of PXI partial node respectively, PXI counting and timing module, multi-functional RIO module, described PXI host node, the PXI partial node is connected triggering signal with synchronous reception EAST central control system by isometric signal optical fibre respectively with the EAST central control system, one of them PXI counting and timing module inserts the PXI cabinet backboard of described PXI host node respectively in the described PXI host node by isometric optical fiber, the PXI cabinet backboard of PXI partial node, by the clock Phase Lock Technique, make the PXI cabinet clock of the PXI cabinet clock of PXI partial node and PXI host node synchronous, another counting and timing module of described PXI host node, the multi-functional RIO module of PXI, and the counting and timing module of PXI partial node, the multi-functional RIO module of PXI is connected to isolation drive equipment respectively separately, described PXI host node, the PXI partial node respectively the isolation drive equipment by separately to EAST subsystem clock signal, triggering signal, and receive the central timing system output signal of the described EAST that collects.
Described EAST central authorities timing system based on PXI, it is characterized in that: described PXI partial node can expand to a plurality of, the PXI host node, a plurality of PXI partial nodes are connected with the EAST central control system by isometric optical fiber, triggering signal with synchronous reception EAST central control system, corresponding PXI counting and timing module inserts the PXI cabinet backboard of described PXI host node respectively in the described PXI host node by isometric optical fiber, the PXI cabinet backboard of a plurality of PXI partial nodes makes the PXI cabinet clock of the PXI cabinet clock of a plurality of PXI partial nodes and PXI host node synchronous by the clock Phase Lock Technique.
Described EAST central authorities timing system based on PXI, it is characterized in that: described PXI host node comprises a PXI-1042Q cabinet, and be integrated in a PXI-8110 controller, two PXI-6608 counting and timing modules, the multi-functional RIO module of PXI-7842R in the PXI-1042Q cabinet of PXI host node, LabVIEW RT system is installed in the described PXI-8110 controller;
Described PXI partial node comprises a PXI-1042Q cabinet, and be integrated in a PXI-8110 controller, a PXI-6608 counting and timing module, the multi-functional RIO module of PXI-7842R in the PXI-1042Q cabinet of PXI partial node, LabVIEW RT system is installed in the described PXI-8110 controller;
One of them PXI-6608 counting and timing module of described PXI host node is by isometric optical fiber and the cabinet backboard of PXI host node, the cabinet backboard of PXI partial node connects, its IO mouth of the multi-functional RIO module of the PXI-7842R of PXI host node, its IO mouth of the multi-functional RIO module of the PXI-7842R of PXI partial node is connected triggering signal with synchronous reception EAST central control system by isometric optical fiber respectively with the EAST central control system, another its scsi interface of PXI-6608 counting and timing module of described PXI host node, its scsi interface of PXI-6608 counting and timing module of PXI partial node inserts isolation drive equipment separately by shielded type cable respectively, multi-functional its scsi interface of RIO module of the PXI-7842R of described PXI host node, multi-functional its scsi interface of RIO module of the PXI-7842R of PXI partial node inserts isolation drive equipment separately by shielded type cable respectively.
Described EAST central authorities timing system based on PXI, it is characterized in that: another its scsi interface of PXI-6608 counting and timing module of described PXI host node has access to an isolation drive equipment by shielded type cable, its scsi interface of PXI-6608 counting and timing module of PXI partial node has access to an isolation drive equipment by shielded type cable, and another PXI-6608 counting and timing module of described PXI host node, the PXI-6608 counting and timing module of PXI partial node are exported the multipath clock signal by its isolation drive equipment separately to the EAST subsystem respectively;
The scsi interface of the multi-functional RIO module of PXI-7842R of described PXI host node, PXI partial node has three respectively, a multifrnction connector scsi interface RMIO, two digital connector scsi interface RDIO.Each scsi interface all inserts an isolation drive equipment by shielded type cable, the multi-functional RIO module of the PXI-7842R of described PXI host node, PXI partial node passes through RMIO attachment unit interface separately respectively, and 6 tunnel collection signals and 2 tunnel Event triggered are gathered signal through the equipment collection of photoelectricity isolation drive and are stored to the PXI local hard drive.The multi-functional RIO module of the PXI-7842R of described PXI host node, PXI partial node passes through two RDIO attachment unit interface separately respectively, provides Event triggered feedback signal and delay triggering signal through photoelectricity isolation drive equipment to subsystem.
Described EAST central authorities timing system based on PXI, it is characterized in that: described PXI host node, PXI partial node be connected with the EAST central control system respectively etc. long optical fibers, and long optical fibers such as one of them PXI-6608 counting and timing module is connected with the PXI cabinet backboard of the PXI cabinet backboard of PXI host node, PXI partial node respectively in the PXI host node, constitute synchronous optical network jointly.
Described EAST central authorities timing system based on PXI, it is characterized in that: described isolation drive equipment comprises transmitter unit and receiving element, described transmitter unit comprises that the HFBR1414 optical fiber head, the NAND gate that are electrically connected to each other drive chip 74ACTQ00, described NAND gate drives on the chip 74ACTQ00 and is connected to the LED signal lamp, and the NAND gate of described transmitter unit drives PXI-6608 counting and timing module corresponding in chip 74ACTQ00 and PXI host node, the PXI partial node, the scsi interface connection of the multi-functional RIO module of PXI-7842R;
Described receiving element comprises that the HFBR2412 optical fiber head, the NAND gate that are electrically connected to each other drive chip 74ACTQ00, described NAND gate drives on the chip 74ACTQ00 and is connected to LED signal lamp, BNC connector, also comprise power supply, DC-DC chip SPR01L-05, described power supply drives chip 74ACTQ00 power supply independently for described NAND gate by DC-DC chip SPR01L-05, described receiving element inserts the scsi interface of described PXI host node, PXI partial node, and described receiving element is connected by optical fiber with described transmitter unit.
Described EAST central authorities timing system based on PXI, it is characterized in that: the LabVIEW program in the PXI-8110 controller of described PXI host node, PXI partial node is divided into three partial contents: the FPGA VI that parameter arranges main frame VI, the RT VI in the PXI Node Controller of platform (main control computer) and is used for customization RIO equipment under the Windows environment.
The present invention has the following advantages:
One: a kind of EAST central authorities timing system based on PXI that the present invention proposes, select reconfigurable I/O (RIO) integrated circuit board module for use, utilize LabVIEW FPGA technology, the logic function of FPGA on the compiling configuration RIO integrated circuit board, thus create a user-defined I/O equipment.The self-defining triggering output channel of this equipment quantity is many, output signal accuracy is high, event response speed fast and parameter arranges easy.Because system adopts the modularized design mode, and the function of IO equipment can be by repeatedly self-defined configuration of user, and it is more flexible to make systemic-function upgrade upgrading.
Its two: a kind of EAST central authorities timing system based on PXI that the present invention proposes, can provide that pulsewidth is adjustable, polarity is optional, enable controlled triggering signal, without any need for ancillary equipment, subsystem can obtain pulsewidth at 1ms ~ 6872s, precision is the adjustable just triggering of nanosecond or negative triggering signal, by enabling control, the user can selectively debug, move certain subsystem.This system can also the acquisition channel output signal simultaneously, thereby judges whether system works is normal, helps to search the reason of fault in the test fast and got rid of.
Its three: a kind of EAST central authorities timing system based on PXI that the present invention proposes, the triggering signal that system brings into operation reaches PXI host node and PXI partial node respectively by 158 meters 50/125 isometric μ m signal optical fibres, has guaranteed the internodal triggering synchronous of PXI.The accurate clock of 10MHz (75ppb) that while PXI host node provides by a pair of 150 meters long optical fibers such as grade, is delivered to the cabinet backboard of PXI host node and PXI partial node respectively, uses the clock Phase Lock Technique, guarantees that two different cabinet clocks are synchronous.158 meters of two-way wait long optical fibers and a pair of 150 meters to wait long optical fibers to form synchronous optical network, do not need the extra special timing module of buying, and get final product triggering synchronous and time synchronized between high-precision realization partial node.And synchronous optical network makes up simple and easy, expands also very convenient.
Its four: a kind of EAST central authorities timing system based on PXI that the present invention proposes, select the PXI technical grade product for use, utilize ripe virtual instrument technique to develop RT application program and host application program, be embedded in controller that LabVIEW RT environment is installed respectively and be equipped with in the main frame of Windows system, seamless realization the information interaction between hardware device and application program.The hardware device of technical grade robust design, professional develop software seamless integrated guaranteed this system under the very severe complex electromagnetic environments, normal steady operation has long-term maintainability for a long time.
Description of drawings
Fig. 1 is systematic schematic diagram of the present invention.
Fig. 2 is grid information relationship figure of the present invention.
Fig. 3 is system hardware structure figure of the present invention.
Fig. 4 is the transmitter unit principle schematic of system of the present invention isolation drive equipment.
Fig. 5 is the receiving element principle schematic of system of the present invention isolation drive equipment.
Fig. 6 is the principle schematic of system of the present invention isolation drive equipment.
Fig. 7 is system LabVIEW program architecture figure of the present invention.
Embodiment
As shown in Figure 1 and Figure 2.System of the present invention is made up of main control computer, database server, synchronous optical network, PXI node and some isolation drive equipment.Main control computer, data server and all PXI nodes all insert the EAST local area network (LAN).The user on the main control computer to the PXI node on the parameter of all clock passages and trigger port arrange, these parameter informations transmit by network on the one hand, be stored to database server and do data backup, these parameters reach each PXI partial node by Transmission Control Protocol on the other hand, are used for arranging channel parameters.The user wants to check, call related data, and the application program of main control computer will be utilized ADO technology access database server, and according to user's querying condition search, information in the reading database server.Simultaneously main control computer can be copied to this machine by image data file and Event triggered record that FTP will be stored in each partial node.
As shown in Figure 3.The optical fiber model of using in the native system is ST to ST, 50/125 μ m.
Native system PXI host node hardware is formed: the PXI-1042Q of a NI company cabinet, a PXI-8110 controller, two PXI-6608 counting and timing modules, the multi-functional RIO module of PXI-7842R.LabVIEW RT operating system wherein is installed in the PXI-8110 controller.
PXI partial node hardware is formed: the PXI-1042Q of a NI company cabinet, a PXI-8110 controller, a PXI-6608 counting and timing module, the multi-functional RIO module of PXI-7842R.LabVIEW RT system environments wherein is installed in the PXI-8110 controller.If will increase the PXI node newly, node disposes with the PXI partial node.
Utilize an IO(connector 1/DIO39 among the PXI-7842R) as the passage of accepting system triggers, when the EAST central control system provides EAST device " begin discharge " signal (being the system triggers signal) to system of the present invention, this signal is by 158 meters 50/125 isometric μ m signal optical fibres of two-way, reach the DIO connector connector 1/DIO39 of PXI host node and PXI partial node respectively, guaranteed two PXI node triggering synchronous (namely starting working synchronously).Counting and timing module PXI-6608 in the PXI host node can provide the accurate clock of 10MHz (precision 75ppb) by programming on the other hand, by a pair of 150 meter 50/125 long optical fibers such as μ m, be connected to the 10MHz RFF-IN passage of PXI host node and PXI partial node cabinet backboard respectively, use the clock Phase Lock Technique, guarantee that two different cabinet clocks are synchronous.158 meters of two-way wait long optical fibers and a pair of 150 meters to wait long optical fibers composition synchronous optical network.If will increase node newly, the expansion synchronous optical network only needs to increase by 158 meters optical fiber, is used for receiving triggering signal; Increase by 150 meters optical fiber to the PXI-6608 module reception synchronizing clock signals of PXI host node.
The PXI-6608 module is connected with the photoelectricity xegregating unit by special-purpose SH68-68-D1 Cable shielded type cable, and interface is SCSI(Small Computer System Interface).The PXI-7842R module has 3 SCSI connectors (1 RMIO, 2 RDIO), be connected with the photoelectricity xegregating unit with SHC68-68-RDIO Cable by shielded type cable SHC68-68-RMIO Cable, crosstalk thereby reduce, improve signal integrity and denoising performance.
As shown in Figure 4.Isolate ﹠amp; Driving arrangement offers each subsystem after each passage of PXI partial node is exported isolation and improved driving force, also outer signals can be reached the PXI node through xegregating unit in addition, uses for the end application collection.In the transmitter unit, 74ACTQ00 is used for improving driving force as driving; Optical fiber head adopts HFBR1414, and LED is used for showing signal condition.
As shown in Figure 5.In the receiving element, optical fiber receives head and adopts HFBR2412, drives output by NAND gate chip 74ACTQ00 equally, and LED is used for showing signal condition.Independent in order to guarantee each output unit power supply, adopted output 5V, the DC-DC chip SPR01L-05 of 200mA has guaranteed the isolation of each output port.
As shown in Figure 6.Isolate ﹠amp; Adopt multimode fiber to be connected between the receiving element of driving arrangement and the transmitter unit.
As shown in Figure 7.Central authorities' timing system LabVIEW program is divided into three partial contents: the FPGA VI that parameter arranges main frame VI, the RT VI in the PXI Node Controller of platform (main control computer) and is used for customization RIO equipment under the Windows environment.
Claims (7)
1. based on the central timing system of the EAST of PXI, it is characterized in that: comprise the main control computer that inserts the EAST local area network (LAN) respectively, database server, the PXI host node, the PXI partial node, described main control computer respectively with described database server, the PXI host node, PXI partial node both-way communication connects with bi-directional transfer of data, described PXI host node comprises the PXI cabinet, and be integrated in PXI controller in the PXI cabinet of PXI host node, two PXI counting and timing modules, the multi-functional RIO module of PXI, described PXI partial node comprises the PXI cabinet, and be integrated in PXI controller in the PXI cabinet of PXI partial node respectively, PXI counting and timing module, the multi-functional RIO module of PXI, described PXI host node, the PXI partial node is connected triggering signal with synchronous reception EAST central control system by isometric signal optical fibre respectively with the EAST central control system, one of them PXI counting and timing module inserts the PXI cabinet backboard of described PXI host node respectively in the described PXI host node by isometric optical fiber, the PXI cabinet backboard of PXI partial node, by the clock Phase Lock Technique, make the PXI cabinet clock of the PXI cabinet clock of PXI partial node and PXI host node synchronous, another counting and timing module of described PXI host node, the multi-functional RIO module of PXI, and the counting and timing module of PXI partial node, the multi-functional RIO module of PXI is connected to isolation drive equipment respectively separately, described PXI host node, the PXI partial node respectively the isolation drive equipment by separately to EAST subsystem clock signal, triggering signal, and receive the central timing system output signal of the described EAST that collects.
2. the EAST central authorities timing system based on PXI according to claim 1, it is characterized in that: described PXI partial node can expand to a plurality of, the PXI host node, a plurality of PXI partial nodes are connected with the EAST central control system by isometric optical fiber, triggering signal with synchronous reception EAST central control system, corresponding PXI counting and timing module inserts the PXI cabinet backboard of described PXI host node respectively in the described PXI host node by isometric optical fiber, the PXI cabinet backboard of a plurality of PXI partial nodes makes the PXI cabinet clock of the PXI cabinet clock of a plurality of PXI partial nodes and PXI host node synchronous by the clock Phase Lock Technique.
3. the EAST central authorities timing system based on PXI according to claim 1, it is characterized in that: described PXI host node comprises a PXI-1042Q cabinet, and be integrated in a PXI-8110 controller, two PXI-6608 counting and timing modules, the multi-functional RIO module of PXI-7842R in the PXI-1042Q cabinet of PXI host node, LabVIEW RT system is installed in the described PXI-8110 controller;
Described PXI partial node comprises a PXI-1042Q cabinet, and be integrated in a PXI-8110 controller, a PXI-6608 counting and timing module, the multi-functional RIO module of PXI-7842R in the PXI-1042Q cabinet of PXI partial node, LabVIEW RT system is installed in the described PXI-8110 controller;
One of them PXI-6608 counting and timing module of described PXI host node is by isometric optical fiber and the cabinet backboard of PXI host node, the cabinet backboard of PXI partial node connects, its IO mouth of the multi-functional RIO module of the PXI-7842R of PXI host node, its IO mouth of the multi-functional RIO module of the PXI-7842R of PXI partial node is connected triggering signal with synchronous reception EAST central control system by isometric optical fiber respectively with the EAST central control system, another its scsi interface of PXI-6608 counting and timing module of described PXI host node, its scsi interface of PXI-6608 counting and timing module of PXI partial node inserts isolation drive equipment separately by shielded type cable respectively, multi-functional its scsi interface of RIO module of the PXI-7842R of described PXI host node, multi-functional its scsi interface of RIO module of the PXI-7842R of PXI partial node inserts isolation drive equipment separately by shielded type cable respectively.
4. the EAST central authorities timing system based on PXI according to claim 3, it is characterized in that: another its scsi interface of PXI-6608 counting and timing module of described PXI host node has access to an isolation drive equipment by shielded type cable, its scsi interface of PXI-6608 counting and timing module of PXI partial node has access to an isolation drive equipment by shielded type cable, another PXI-6608 counting and timing module of described PXI host node, the PXI-6608 counting and timing module of PXI partial node is exported the multipath clock signal by its isolation drive equipment separately to the EAST subsystem respectively;
The scsi interface of the multi-functional RIO module of PXI-7842R of described PXI host node, PXI partial node has three respectively, a multifrnction connector scsi interface RMIO, two digital connector scsi interface RDIO; Each scsi interface all inserts an isolation drive equipment by shielded type cable, the multi-functional RIO module of the PXI-7842R of described PXI host node, PXI partial node passes through RMIO attachment unit interface separately respectively, and 6 tunnel collection signals and 2 tunnel Event triggered are gathered signal through the equipment collection of photoelectricity isolation drive and are stored to the PXI local hard drive; The multi-functional RIO module of the PXI-7842R of described PXI host node, PXI partial node passes through two RDIO attachment unit interface separately respectively, provides Event triggered feedback signal and delay triggering signal through photoelectricity isolation drive equipment to subsystem.
5. the EAST central authorities timing system based on PXI according to claim 1, it is characterized in that: described PXI host node, PXI partial node be connected with the EAST central control system respectively etc. long optical fibers, and long optical fibers such as one of them PXI-6608 counting and timing module is connected with the PXI cabinet backboard of the PXI cabinet backboard of PXI host node, PXI partial node respectively in the PXI host node, constitute synchronous optical network jointly.
6. the EAST central authorities timing system based on PXI according to claim 1, it is characterized in that: described isolation drive equipment comprises transmitter unit and receiving element, described transmitter unit comprises that the HFBR1414 optical fiber head, the NAND gate that are electrically connected to each other drive chip 74ACTQ00, described NAND gate drives on the chip 74ACTQ00 and is connected to the LED signal lamp, and the NAND gate of described transmitter unit drives PXI-6608 counting and timing module corresponding in chip 74ACTQ00 and PXI host node, the PXI partial node, the scsi interface connection of the multi-functional RIO module of PXI-7842R;
Described receiving element comprises that the HFBR2412 optical fiber head, the NAND gate that are electrically connected to each other drive chip 74ACTQ00, described NAND gate drives on the chip 74ACTQ00 and is connected to LED signal lamp, BNC connector, also comprise power supply, DC-DC chip SPR01L-05, described power supply drives chip 74ACTQ00 power supply independently for described NAND gate by DC-DC chip SPR01L-05, described receiving element inserts the scsi interface of described PXI host node, PXI partial node, and described receiving element is connected by optical fiber with described transmitter unit.
7. the EAST central authorities timing system based on PXI according to claim 1, it is characterized in that: the LabVIEW program in the PXI-8110 controller of described PXI host node, PXI partial node is divided into three partial contents: the FPGA VI that parameter arranges main frame VI, the RT VI in the PXI Node Controller of platform and is used for customization RIO equipment under the Windows environment.
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| CN102882624B (en) * | 2012-08-10 | 2015-06-24 | 上海卫星工程研究所 | PXI/PCI bus-based remote synchronization device of test signal source devices and method thereof |
| CN106302102A (en) * | 2015-06-26 | 2017-01-04 | 核工业西南物理研究院 | Instant message delivery system |
| CN105944241A (en) * | 2016-02-26 | 2016-09-21 | 中国科学院等离子体物理研究所 | Timing synchronizer for medical circular accelerator |
| CN108768378A (en) * | 2018-05-23 | 2018-11-06 | 中国电子科技集团公司第四十研究所 | High-voltage driving device based on PXI modules |
| CN109996036B (en) * | 2019-03-18 | 2020-12-11 | 合肥工业大学 | Image acquisition and high-speed processing transmission method for tokamak |
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