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Coaxial switching remote monitor based on FPGA

A monitor and coaxial technology, applied in the program control of sequence/logic controller, electrical program control, etc., can solve the problems of unreliable system, unguaranteed crash status, limited working speed and efficiency, etc.

Inactive Publication Date: 2010-09-15
杨津浦
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, MCUs all adopt a queued serial instruction execution mode, and their working speed and efficiency are also limited by this working mode. In terms of processing speed, the speed of the MCU microprocessor still cannot meet the requirements of scientific engineering experiments; secondly, the ICRH system Working in the strong magnetic field environment of nuclear fusion, it has been proved that no matter how high the anti-interference performance index of the MCU is, under the condition of strong interference, especially strong electromagnetic interference, the MCU cannot To ensure that it can still work normally and enter the "crash" state, the reset setting of the MCU will become an important factor for the unreliable operation of the system

Method used

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  • Coaxial switching remote monitor based on FPGA
  • Coaxial switching remote monitor based on FPGA
  • Coaxial switching remote monitor based on FPGA

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings and typical embodiments.

[0010] Refer to attached figure 1 . This embodiment includes 1, a power supply module, which provides the working voltage of each functional chip in the monitoring system; 2, an inert gas detection module, which detects the pressure value of the inert gas in the coaxial transmission line in real time; and 3, an A / D conversion module, which converts the pressure value into Corresponding acquisition voltage; 4 is the limit feedback module, and the stroke sensor signal is sent to the FPGA control module through the feedback module; 5 is the RS485 module, which is responsible for the control command transmission with the remote console; 6 is the FPGA control module; 7 is the UART module , realizing the serial-to-parallel conversion of the transmission data inside the FPGA, realizing the function of the universal asynchronous transceiver; 8 is the a...

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Abstract

The invention relates to a coaxial switching remote monitor based on FPGA, comprising an inert air pressure detection module, an air pressure control module, an A / D conversion module, a limit feedback module, an RS485 module, a coaxial switching module, a power supply module, a UART module and an FPGA control module. In the invention, state of high power coaxial transmission is input by inert air pressure detection and limit feedback, conversion and acquisition are realized by the A / D, and FPGA analysis and processing and feedback control on operation of coaxial switching are carried out. The invention has the characteristics of high precision, fast response and strong anti-interference. Finally, the invention meets the technical requirements of high power coaxial transmission switching remote monitoring of ICRF system in big science engineering.

Description

technical field [0001] The invention belongs to the field of microcomputer applications, and relates to the design of a dedicated controller for transmission line switching and antenna capacitance allocation of an ion cyclotron resonance heating (ICRF) heating system, in particular to an automatic remote monitoring controller designed with programmable FPGA technology. technical background [0002] At present, the ICRH system outputs RF power, which can work in two modes of continuous wave or pulse wave, and is mainly used for RF heating experiments, boriding and wall treatment of tokamak plasma. In the EAST superconducting tokamak experimental device, the radio frequency transmission line of the new system needs to work in different working modes. In foreign countries, the inert pressure detection, discharge, and switching of coaxial conversion joints in microwave transmission lines are basically based on single-chip microcomputers. CPU The quality of performance directly a...

Claims

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Application Information

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IPC IPC(8): G05B19/05
Inventor 杨津浦
Owner 杨津浦
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