High-Speed Visible Image Acquisition and Processing System for Plasma Shape and Position Control of EAST Tokamak
| Autor: | Jianhua Yang, B. J. Xiao, Heng Zhang, Z.P. Luo, Qin Hang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Nuclear and High Energy Physics
Computer science business.industry Interface (computing) Frame (networking) Graphics processing unit Process (computing) Image processing Condensed Matter Physics 01 natural sciences 010305 fluids & plasmas Software Frame grabber 0103 physical sciences 010306 general physics Field-programmable gate array business Computer hardware |
| Zdroj: | IEEE Transactions on Plasma Science. 46:1312-1317 |
| ISSN: | 1939-9375 0093-3813 |
| Popis: | Currently, the fast evolution of cameras in recent years has made them promising tools for diagnostics of Tokamak. The solution presented in this paper consists of a prototype of high-speed visible image acquisition and processing system (HVIAPs) dedicated for experimental advanced superconducting tokamak shape and position control. Graphics processing unit (GPU) and field-programmable gate array (FPGA) are typically used as accelerators or co-processors in addition to a CPU. Such a heterogeneous computing system can combine the advantages of its individual components. The main imaging equipment components used for this system are four high-resolution fast cameras equipped with fiber interface. Image data from the cameras are received by the frame grabber card based on the FPGA and transmitted to the GPU via the peripheral component interconnect express interface. The software support for the system includes low-level drivers and application programming interface libraries for all components and the algorithm developed for image processing. The offline image process results are compared to equilibrium fitting code, which is a commonly used reconstruction method, with an average error of 1.5 cm. The total processing time for one frame is less than 0.3 ms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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