CN109996036B - Image acquisition and high-speed processing transmission method for tokamak - Google Patents
Image acquisition and high-speed processing transmission method for tokamak Download PDFInfo
- Publication number
- CN109996036B CN109996036B CN201910204137.1A CN201910204137A CN109996036B CN 109996036 B CN109996036 B CN 109996036B CN 201910204137 A CN201910204137 A CN 201910204137A CN 109996036 B CN109996036 B CN 109996036B
- Authority
- CN
- China
- Prior art keywords
- data
- personal computer
- industrial personal
- data acquisition
- acquisition industrial
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Abstract
The invention belongs to the technical field of plasma image data acquisition and processing, in particular to an image acquisition and high-speed processing transmission system and a method for tokamak, wherein the system comprises a master control, a data acquisition industrial personal computer, a data exchanger, a data processing server and a data storage server; the data acquisition industrial personal computer, the data processing server and the data storage server are respectively provided with a reflection memory card, and each reflection memory card is connected to the data switch through an optical fiber; the data acquired by each data acquisition industrial personal computer are shared to a data processing server through a data switch for processing, and then the data processed by the data processing server are transmitted to a local memory of the data storage server through the data switch; the system provided by the invention has stable and reliable performance, strong anti-interference capability and high real-time performance; by utilizing a high-speed data sharing network, the efficiency of parallel processing and analyzing data by researchers is greatly improved.
Description
Technical Field
The invention belongs to the technical field of plasma image data acquisition and processing, and particularly relates to an image acquisition and high-speed processing transmission system and method for tokamak.
Background
The tokamak device is a device that utilizes magnetic confinement to achieve controlled nuclear fusion, and the main scientific goal of such devices is to achieve high-parameter steady-state operation of the device and to study related physical and engineering problems. In the experimental process, because of the high-speed rotation of the plasma in the device and the high energy of the plasma, the weakly confined plasma is easy to separate from the magnetic confinement and is not controlled. When the plasma inside the device is not constrained and does irregular movement, the plasma is easy to directly collide with the inner surface of the device, so that the inner surface of the device is seriously damaged and even the progress of discharge is influenced. This brings serious safety hazard to the normal operation of the plasma discharge experiment. Therefore, the state of the plasma in the discharge process of the tokamak apparatus must be monitored in real time so as to adjust relevant experimental parameters to ensure long-time discharge of the plasma.
At present, a device internal state image real-time monitoring system widely applied to a tokamak device adopts a high-speed camera to acquire the high-speed running state of plasma in a discharging process. Due to the special physical structure of the tokamak device in a ring or sphere shape and the limited field of view of each camera, one camera cannot acquire the whole image of the inside of the device, so at least three cameras must be adopted to acquire the image of the space inside the whole device, as shown in fig. 2. The method comprises the following steps that a plurality of cameras are adopted to respectively and independently acquire images at different visual angles, and if image splicing and other processing are not carried out, the fracture phenomenon of a space image is not beneficial to an experimenter to integrally observe the state of parts in the device in the discharging process; in addition, due to the ultrahigh frame rate of the high-speed camera, the stored video data is huge, and much time is consumed when the video data is transmitted to other servers by utilizing the Ethernet for later experimental data analysis; therefore, a set of large-field image acquisition and high-speed processing system must be constructed to solve the above problems.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides an image acquisition and high-speed processing transmission system for tokamak, and solves the problems of integral picture fracture and low data transmission rate caused by image acquisition of a plurality of cameras.
In order to achieve the purpose, the invention adopts the following technical scheme:
an image acquisition and high speed processing transport system for tokamak, comprising:
the master controller is used for sending a trigger signal;
a data acquisition industrial personal computer; the number of the data acquisition industrial personal computers is at least three, and each data acquisition industrial personal computer is connected to the master controller through a network cable and is used for receiving a trigger signal sent by the master controller and acquiring video data of plasma discharge in the Tokamak device;
a data switch;
the data processing server is used for processing the data acquired by each data acquisition industrial personal computer and performing mathematical calculation and physical analysis;
the data storage server is used for storing and viewing the result obtained by the data processing server;
the data acquisition industrial personal computer, the data processing server and the data storage server are respectively provided with a reflection memory card, and each reflection memory card is connected to the data switch through an optical fiber;
the data acquired by each data acquisition industrial personal computer are shared to the data processing server through the data switch for processing, and then the data processed by the data processing server are transmitted to the local memory of the data storage server through the data switch.
The invention also provides an image acquisition and high-speed processing transmission method for the tokamak, which comprises the following steps:
(1) initializing all reflection memory cards and a data switch, and clearing cache;
(2) the working modes of all the reflective memory cards are set as follows: circularly sending data and a redundant transmission mode;
(3) each data acquisition industrial personal computer is set to be in a state of waiting for receiving the master control sending trigger, and the waiting time is T1;
(4) in a time period T1, each trigger status flag is determined to have a value V, and a corresponding response is performed:
when the value V of the trigger state flag bit is 0, each data acquisition industrial personal computer continues waiting;
when the value V of the trigger state flag bit is 1, each data acquisition industrial personal computer starts to acquire data and executes the step (5);
(5) each data acquisition industrial personal computer writes data quantity with fixed size into the respective reflection memory card, and simultaneously maps the data in the local reflection memory card into the data exchanger through optical fibers;
(6) in a time period T2, the data processing server performs a corresponding response by determining the value M1 of the first interrupt flag bit of the local reflective memory card:
when the value M1 of the first interrupt flag bit is 0, the data processing server continues to wait for the data switch to map the data acquired by each data acquisition industrial personal computer;
when the value M1 of the first interrupt flag bit is 1, the data processing server starts to read the data at the designated position of the data switch and carries out corresponding processing, the processing result is synchronously mapped to the data switch, and meanwhile, the data processing server displays the processed image data through the upper computer software and executes the step (7);
(7) in a time period T3, the data storage server performs a corresponding response by determining the value M2 of the second interrupt flag bit of the local reflective memory card:
when the value M2 of the second interrupt flag bit is 0, the data storage server continues to wait for the data processing server to process data;
when the value M2 of the second interrupt flag is 1, the data storage server reads the processed data in the data switch through a local reflective memory card and an optical fiber and stores the data in a local memory;
in the step (6), after the data switch has mapped the data size of the specified size, the value M1 of the first interrupt flag is set to 1 from 0;
in step (7), after the data processing server finishes processing the data, the value M2 of the second interrupt flag is set to 1 from 0.
Preferably, the T1 is 6000 s.
Compared with the prior art, the invention has the following technical effects:
1. the system provided by the invention has stable and reliable performance, strong anti-interference capability and high real-time performance;
2. by utilizing a high-speed data sharing network, the efficiency of parallel processing and analyzing data by researchers is greatly improved;
3. by combining with upper computer software, the image monitoring of the large field range inside the tokamak device is realized, and a good auxiliary effect is achieved for experimenters to analyze the plasma discharge phenomenon.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic diagram of an image acquisition and high-speed processing transmission system for tokamak according to the present invention;
FIG. 2 is a schematic view of the spatial distribution positions and the field of view of a camera in a Tokamak device;
the reference numbers in the figures illustrate: 1-high speed camera, 2-optical path.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.
Referring to fig. 1, the present invention provides an image acquisition and high-speed processing transmission system for tokamak, which includes a master controller, a data acquisition industrial personal computer, a data switch, a data processing server, and a data storage server.
The master controller is used for sending a trigger signal;
the number of the data acquisition industrial personal computers is at least three, and each data acquisition industrial personal computer is connected to the master controller through a network cable and is used for receiving a trigger signal sent by the master controller and acquiring video data of plasma discharge in the Tokamak device;
the data exchanger is used for storing the data transmitted by the reflection memory card, and rapidly providing a data reading interface for the reflection memory card of each node to realize data sharing;
the data processing server is used for processing the data acquired by each data acquisition industrial personal computer and performing mathematical calculation and physical analysis;
the data storage server is used for storing and viewing the result obtained by the data processing server;
the data acquisition industrial personal computer, the data processing server and the data storage server are respectively provided with a reflection memory card, and each reflection memory card is connected to the data switch through an optical fiber;
the data acquired by each data acquisition industrial personal computer are shared to the data processing server through the data switch for processing, and then the data processed by the data processing server are transmitted to the local memory of the data storage server through the data switch.
The system provided by the invention can realize the maximum viewing angle of a large-view-field image of 360 degrees, and when the resolution of the acquired image is 800 multiplied by 600 and the size is 1.8MB, the data transmission speed of not less than 100MB/s is provided by utilizing the reflective memory card.
The image acquisition and high-speed processing and transmission system provided by the invention can be used for the whole annular view field image in the Tokamak device and realizing the rapid processing and transmission of data. Generally, due to the special annular or spherical internal structure of the tokamak device, one camera cannot acquire all images in the device, so that at least three cameras must be adopted to acquire complete images of the internal space of the device, specifically, the number of the cameras can be increased according to the window position and the number of the tokamak device, and the number of the required cameras can be determined for different tokamak devices only according to the structural characteristics of the device and the arrangement positions of the cameras. Hereinafter, the present invention will be described in detail using only three cameras.
In the invention, the fast splicing of the plasma discharge images with large visual fields in the device is realized through an image splicing technology based on an improved sift image matching algorithm and a high-performance data processing server, and the high-speed transmission of data is realized through a reflective memory network.
The working mode of the reflective memory network comprises the following steps:
(1) initializing all reflective memory cards in the reflective memory network, and clearing cache to prevent data confusion;
(2) setting the working mode of a reflective memory card;
(3) after a first data acquisition industrial personal computer, a second data acquisition industrial personal computer and a third data acquisition industrial personal computer (used as transmitting terminals) write data quantity with a specified size into a memory of a local reflection memory card, starting to map data to a data exchanger;
(4) the data processing server (used as a receiving end) starts to read the data at the designated position of the data switch when the value M1 of the first interrupt flag bit is 1, and performs processing operations such as image splicing, and the processed data is directly displayed through an upper computer software interface;
the processing operations such as image splicing comprise an image similarity matching technology, an image splicing technology and a noise reduction and nonlinear difference value technology;
the functions realized by the upper computer software interface comprise image data display, data basic information display, data transmission speed display of each node reflecting a memory card, image data frame rate display and control options of other data display modes;
(5) and (3) when the value M2 of the second interrupt flag bit of the data storage server (serving as a receiving end) is 1, starting to read the data obtained in the step (4) in the data exchange, and storing the data in the local memory of the server.
The invention provides an image acquisition and high-speed processing and transmission method for tokamak, which adopts the image acquisition and high-speed processing and transmission system for tokamak and specifically comprises the following steps:
s1: initializing a first data acquisition industrial personal computer, a second data acquisition industrial personal computer and a third data acquisition industrial personal computer, setting parameters such as resolution, acquisition frame rate, acquisition duration, data transmission port number and the like of acquired image data, and waiting for a master control to send a trigger signal;
s2: initializing a reflection memory card, setting a starting position and an offset address of a memory, writing data, and a working mode, and waiting for a first data acquisition industrial personal computer, a second data acquisition industrial personal computer and a third data acquisition industrial personal computer to write data;
s3: initializing a data switch, emptying data in a cache of the data switch, and preparing for transmitting new data;
s4: when discharging starts, the master control sends a trigger signal to the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer, the value V of the trigger state flag bit is set to be 1, and the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer start to acquire image data according to initialized parameters;
s5: the data collected by the first data collection industrial personal computer, the second data collection industrial personal computer and the third data collection industrial personal computer are respectively mapped to the positions appointed by the data exchanger while the first data collection industrial personal computer, the second data collection industrial personal computer and the third data collection industrial personal computer collect data with appointed size;
s6: after the data acquired by the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer are all mapped to the data switch, the value M1 of the first interrupt flag bit of the reflection memory card in the data processing server is set to be 1, and at the moment, the data processing server writes the data stored at the appointed position in the data switch into the self reflection memory card and starts to perform image processing;
s7: the data processing server carries out preprocessing such as filtering and noise reduction on the image data in the local reflection memory card;
s8: the data processing server performs image local area similarity matching calculation on data acquired by the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer;
s9: the data processing server utilizes a similarity evaluation function to screen the matching result in the step S8 and stores the feature points;
s10: the data processing server carries out image splicing processing on the data acquired by the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer according to the result of the step S9, and the result obtained after image splicing is displayed through an upper computer interface;
s11: the functions realized by the upper computer interface in the data processing server comprise data display, an image refreshing frame rate, image data basic information, data transmission speed and the like;
s12: after completing image splicing, the data processing server writes a processing result into a self-reflection memory card, and meanwhile, the data switch synchronously maps the processed result to a position appointed by a self-cache region;
s13: after the data switch completes the data mapping in step S12, the value M2 of the second interrupt flag bit of the reflective memory card in the data storage server is set to 1, and at this time, the data storage server reads the data that has been processed by the data processing server from the position specified by the data switch by using the reflective memory card and writes the data into the local storage space of the server.
In the invention, the reflective memory card is used for realizing high-speed transmission of data, and the operating efficiency of the whole system is improved; the working modes of the reflective memory card are flexible and changeable, and comprise a cyclic sending data/redundant transmission mode and a non-cyclic sending data/non-redundant transmission mode; the cyclic data transmission refers to data transmission for multiple times (far more than one time), and the non-cyclic data transmission refers to data transmission for only one time; the redundant transmission mode means that each data to be transmitted is transmitted twice in sequence (the transmitting end reflects the memory card), and the receiving circuit of the receiving end reflects the memory card evaluates each data transmission. If the receiving circuit of the receiving end reflection memory card does not detect errors in the first data transmission, the first transmitted data is reserved, and the second transmitted data is discarded; if the receiving circuit of the reflective memory card at the receiving end detects an error in the first data transmission, the first data transmission is discarded, and the second data transmission is retained. Non-redundant transmission modes refer to: each data that is used for transmission is sent only once (sender-side reflective memory card). The receiving circuit of the receiving-side reflective memory card does not evaluate this data transmission, and is considered as error-free by default. Therefore, the reflective memory card operates in the non-redundant transmission mode at a faster transmission speed than the redundant transmission mode, but the data accuracy is reduced. In general, to ensure the accuracy of data transmission, the operating mode of the reflective memory card needs to be set to a redundant transmission mode.
The foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. An image acquisition and high-speed processing transmission method for tokamak is characterized by comprising the following steps:
s1: initializing a first data acquisition industrial personal computer, a second data acquisition industrial personal computer and a third data acquisition industrial personal computer, setting parameters such as resolution, acquisition frame rate, acquisition duration, data transmission port number and the like of acquired image data, and waiting for a master control to send a trigger signal;
s2: initializing a reflection memory card, setting a starting position and an offset address of a memory, writing data, and a working mode, and waiting for a first data acquisition industrial personal computer, a second data acquisition industrial personal computer and a third data acquisition industrial personal computer to write data;
s3: initializing a data switch, emptying data in a cache of the data switch, and preparing for transmitting new data;
s4: when discharging starts, the master control sends a trigger signal to the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer, the value V of the trigger state flag bit is set to be 1, and the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer start to acquire image data according to initialized parameters;
s5: the data collected by the first data collection industrial personal computer, the second data collection industrial personal computer and the third data collection industrial personal computer are respectively mapped to the positions appointed by the data exchanger while the first data collection industrial personal computer, the second data collection industrial personal computer and the third data collection industrial personal computer collect data with appointed size;
s6: after the data acquired by the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer are all mapped to the data switch, the value M1 of the first interrupt flag bit of the reflection memory card in the data processing server is set to be 1, and at the moment, the data processing server writes the data stored at the appointed position in the data switch into the self reflection memory card and starts to perform image processing;
s7: the data processing server carries out preprocessing such as filtering and noise reduction on the image data in the local reflection memory card;
s8: the data processing server performs image local area similarity matching calculation on data acquired by the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer;
s9: the data processing server utilizes a similarity evaluation function to screen the matching result in the step S8 and stores the feature points;
s10: the data processing server carries out image splicing processing on the data acquired by the first data acquisition industrial personal computer, the second data acquisition industrial personal computer and the third data acquisition industrial personal computer according to the result of the step S9, and the result obtained after image splicing is displayed through an upper computer interface;
s11: the functions realized by the upper computer interface in the data processing server comprise data display, an image refreshing frame rate, image data basic information, data transmission speed and the like;
s12: after completing image splicing, the data processing server writes a processing result into a self-reflection memory card, and meanwhile, the data switch synchronously maps the processed result to a position appointed by a self-cache region;
s13: after the data switch completes the data mapping in step S12, the value M2 of the second interrupt flag bit of the reflective memory card in the data storage server is set to 1, and at this time, the data storage server reads the data that has been processed by the data processing server from the position specified by the data switch by using the reflective memory card and writes the data into the local storage space of the server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204137.1A CN109996036B (en) | 2019-03-18 | 2019-03-18 | Image acquisition and high-speed processing transmission method for tokamak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910204137.1A CN109996036B (en) | 2019-03-18 | 2019-03-18 | Image acquisition and high-speed processing transmission method for tokamak |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109996036A CN109996036A (en) | 2019-07-09 |
| CN109996036B true CN109996036B (en) | 2020-12-11 |
Family
ID=67129770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910204137.1A Active CN109996036B (en) | 2019-03-18 | 2019-03-18 | Image acquisition and high-speed processing transmission method for tokamak |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109996036B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201908A (en) * | 2011-03-24 | 2011-09-28 | 中国科学院等离子体物理研究所 | EAST central timing system based on PXI (extension for instrumentation) |
| CN105973929A (en) * | 2016-03-17 | 2016-09-28 | 中国科学院等离子体物理研究所 | Non-destructive testing method for detecting thermal contact resistance inside parts by infrared camera |
| CN106095451A (en) * | 2016-06-13 | 2016-11-09 | 中国科学院等离子体物理研究所 | A kind of based on hypotactic real-time control software framework establishment method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101249476B1 (en) * | 2011-07-20 | 2013-04-01 | 한국기초과학지원연구원 | Lens for ir-tv used for diagnosing plasma of kstar apparatus |
| CN106647330B (en) * | 2016-12-23 | 2019-09-17 | 核工业西南物理研究院 | A kind of Plasma shape real-time reconstructing system and method applied to tokamak |
| US20180345219A1 (en) * | 2017-12-20 | 2018-12-06 | Yanming Wei | Osmosis battery & high magnetic field generator & superconducting ionic current loop |
-
2019
- 2019-03-18 CN CN201910204137.1A patent/CN109996036B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201908A (en) * | 2011-03-24 | 2011-09-28 | 中国科学院等离子体物理研究所 | EAST central timing system based on PXI (extension for instrumentation) |
| CN105973929A (en) * | 2016-03-17 | 2016-09-28 | 中国科学院等离子体物理研究所 | Non-destructive testing method for detecting thermal contact resistance inside parts by infrared camera |
| CN106095451A (en) * | 2016-06-13 | 2016-11-09 | 中国科学院等离子体物理研究所 | A kind of based on hypotactic real-time control software framework establishment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109996036A (en) | 2019-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019170166A1 (en) | Depth camera calibration method and apparatus, electronic device, and storage medium | |
| CN106683158B (en) | Modeling system of GPU texture mapping non-blocking storage Cache | |
| WO2020228643A1 (en) | Interactive control method and apparatus, electronic device and storage medium | |
| US11182908B2 (en) | Dense optical flow processing in a computer vision system | |
| CN110610510A (en) | Target tracking method and device, electronic equipment and storage medium | |
| CN110163087B (en) | Face gesture recognition method and system | |
| Benito-Picazo et al. | Deep learning-based video surveillance system managed by low cost hardware and panoramic cameras | |
| CN109857702B (en) | Laser radar data read-write control system and chip based on robot | |
| CN110163797A (en) | A kind of calibration turntable position orientation relation realizes the method and device of any angle point cloud | |
| CN108604372B (en) | Method and apparatus for generating data representing a pixel beam | |
| CN107315563A (en) | A kind of apparatus and method for performing vectorial comparison operation | |
| CN114693785A (en) | Target positioning method, system and related equipment | |
| CN111814633A (en) | Method, device, equipment and storage medium for detecting display scene | |
| CN109996036B (en) | Image acquisition and high-speed processing transmission method for tokamak | |
| CN108667740B (en) | Flow control method, device and system | |
| CN111696095B (en) | Method and device for detecting surface defects of object | |
| US20210392269A1 (en) | Motion sensor in memory | |
| CN105203045B (en) | A kind of shape of product integrity detection system and inspection method based on asynchronous time domain visual sensor | |
| CN111343393A (en) | Ultrahigh-definition video picture cutting method | |
| WO2023155387A1 (en) | Multi-sensor target detection method and apparatus, electronic device and storage medium | |
| CN102801998A (en) | Portable polarimetric image collecting and processing system | |
| CN202696808U (en) | Portable polarization image collecting and processing system | |
| CN209895383U (en) | High-speed transmission device for digital image big data | |
| US10846909B2 (en) | Portable ray tracing apparatus | |
| Shu et al. | A large field of view visible cameras image acquisition and processing technology in EAST device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |