CN109450543B - All-fiber communication high-power microwave source measurement and control system - Google Patents
All-fiber communication high-power microwave source measurement and control system Download PDFInfo
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- CN109450543B CN109450543B CN201811561113.3A CN201811561113A CN109450543B CN 109450543 B CN109450543 B CN 109450543B CN 201811561113 A CN201811561113 A CN 201811561113A CN 109450543 B CN109450543 B CN 109450543B
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
Abstract
The invention discloses an all-fiber communication high-power microwave source measurement and control system, which comprises a measurement and control platform and an optical fiber communication processing unit, wherein the measurement and control platform comprises an embedded control processor, a time sequence signal generation module, a digital input/output module, an analog signal output module, a data acquisition module, a serial port communication module and an Ethernet communication interface seven-type functional module, and the optical fiber communication processing unit comprises a digital signal module, an analog signal module, a bus serial communication module and an Ethernet four-type photoelectric conversion processing functional module. The measurement and control platform receives working parameters and operation instructions through a network communication interface, generates corresponding switching operation, serial port communication and time sequence control through each functional module, processes conversion through different functional modules of the optical fiber communication processing unit, is connected to the controlled unit in a multimode optical fiber communication medium mode, and returns operation state information to the remote command center. The digital information transmission network of the all-fiber data interface can be well applied to a high-power microwave source system in a strong electromagnetic environment.
Description
Technical Field
The invention belongs to the technical field of signal processing control, and particularly relates to an all-fiber communication high-power microwave source measurement and control system.
Background
The high-power microwave (HPM) source measurement and control system is mainly used for receiving working parameters and operation instructions of a remote command center, completing the working time sequence control of an on-site HPM source and related equipment, and simultaneously returning state information to the command center for display and processing. The HPM source measurement and control system generally adopts an Ethernet to communicate with a command center, selects different standard field bus interfaces (RS 485, CAN and the like) to be connected with a controlled unit, is partially connected through optical fibers by electric/optical conversion processing, and adopts an electric connection control mode of coaxial cables and shielded twisted pair cables. In the process of developing high-power microwaves and related technical researches, along with further improvement of HPM source power, microwaves, high-voltage discharge, X-rays, electron beam strong guide magnetic fields and the like generated by the system form a complex strong electromagnetic environment, and electromagnetic environment pollution is caused to electronic units such as power grid equipment and nearby measurement and control systems, and functional faults or permanent damage are caused. Therefore, the anti-electromagnetic interference design of the HPM source measurement and control system is improved, and the development of the applicability of the strong electromagnetic environment is one of the key points in the research of the HPM source measurement and control system.
When the HPM source system works, the on-site measurement and control system is integrated with the HPM source and is connected with the controlled unit by adopting a shielding cable, so that the factors influencing the measurement and control system are mainly as follows: frequent switching operation and the like of high-power electronic devices in the HPM source system can generate steep transient pulses, high-power microwaves are radiated by an antenna, side lobes, rear lobes and reflected microwaves can form high-frequency conduction and radiation interference through near-field coupling and far-field radiation, and the high-frequency conduction and radiation interference can be coupled into a measurement and control system through power supply, grounding, interconnection, space radiation and the like.
Disclosure of Invention
In order to overcome the defect that the existing measurement and control system cannot meet the requirement of stably working in a high-power microwave source strong electromagnetic interference environment, the invention provides an all-fiber communication measurement and control system which is based on an all-fiber data communication interface design, can reliably receive monitoring of a remote control center and can stably work in an HPM source strong electromagnetic environment.
The aim of the invention is realized by the following technical scheme:
An all-fiber communication high-power microwave source measurement and control system comprises a measurement and control platform and an optical fiber communication processing unit;
The measurement and control platform comprises an embedded control processor module, a time sequence signal generation module, a digital input/output module, an analog signal output module, a data acquisition module, a serial port communication module and an Ethernet communication interface module;
The optical fiber communication processing unit comprises a digital signal photoelectric conversion module, an analog signal photoelectric conversion module, a serial port photoelectric conversion module and an Ethernet optical fiber conversion module;
the time sequence signal generating module and the digital input/output module are respectively connected with the digital signal photoelectric conversion module;
the analog signal output module and the data acquisition module are respectively connected with the analog signal photoelectric conversion module;
The serial port communication module is connected with the serial port photoelectric conversion module;
The Ethernet communication interface module is connected with the Ethernet optical fiber conversion module.
Preferably, the timing signal generation module employs a Xilinx Virtex-5 reconfigurable I/O (RIO) FPGA core.
Preferably, the digital input/output module adopts a bidirectional 100ns high-speed digital input/output module.
Preferably, the analog signal output module adopts a 16-bit/+ -10V output module.
Preferably, the serial port communication module adopts an RS422/RS485 serial port module.
Preferably, the data acquisition module is a 16-bit-difference separation acquisition module.
Preferably, the ethernet communication interface module employs a single-mode dual-fiber gigabit optical fiber transceiver.
Preferably, the optical fiber communication processing unit analog signal photoelectric conversion module adopts an optical fiber isolation transmission device based on V/F modulation.
As a preferred mode, the measurement and control platform is connected with a single-mode double-fiber gigabit optical fiber transceiver (namely an Ethernet optical fiber conversion module) through an Ethernet communication interface module to carry out photoelectric conversion on transmission signals, generates data frames and command frames through an RS422/RS485 serial interface module (namely a serial port communication module), and converts the data frames and command frames into optical signals through the RS422/RS485 optical fiber conversion module to carry out communication.
The system is characterized by further comprising an electromagnetic shielding cabinet, wherein the measurement and control platform and the optical fiber communication processing unit are arranged in the electromagnetic shielding cabinet;
the electromagnetic shielding cabinet comprises a cabinet body and a shielding door;
The electromagnetic shielding cabinet body is assembled into a cabinet body by welding galvanized steel plates, and is subjected to galvanization and plastic spraying anti-corrosion treatment;
the shielding door adopts a shielding reed and a cold-rolled steel plate to form a door leaf by welding.
The beneficial effects of the invention are as follows:
Compared with the prior art, the invention has the advantages that: because the measurement and control system adopts the digital information transmission network of the all-fiber data interface, the interference path formed by the signal transmission and communication connection cable is cut off. The all-fiber communication measurement and control system can be well applied to a high-power microwave source system comprising strong electromagnetic environments such as primary energy storage, pulse formation and transmission, high-power microwave generation and radiation and the like.
Drawings
FIG. 1 is a block diagram of a measurement and control platform and an optical fiber communication processing unit according to the present invention;
FIG. 2 is a flow chart of the measurement and control platform of the present invention;
In the figure, a 1-measurement and control platform, a 2-optical fiber communication processing unit, a 101-embedded control processor module, a 102-time sequence signal generation module, a 103-digital input/output module, a 104-analog signal output module, a 105-data acquisition module, a 106-serial port communication module, a 107-Ethernet communication interface module, a 201-digital signal photoelectric conversion module, a 202-analog signal photoelectric conversion module, a 203-serial port photoelectric conversion module and a 204-Ethernet optical fiber conversion module are arranged.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 1, an all-fiber communication high-power microwave source measurement and control system comprises a measurement and control platform 1 and an optical fiber communication processing unit 2;
The measurement and control platform 1 comprises an embedded control processor module 101, a time sequence signal generation module 102, a digital input/output module 103, an analog signal output module 104, a data acquisition module 105, a serial port communication module 106 and an Ethernet communication interface module 107;
the optical fiber communication processing unit 2 comprises a digital signal photoelectric conversion module 201, an analog signal photoelectric conversion module 202, a serial port photoelectric conversion module 203 and an Ethernet optical fiber conversion module 204;
the timing signal generating module 102 and the digital input/output module 103 are respectively connected with the digital signal photoelectric conversion module 201;
The analog signal output module 104 and the data acquisition module 105 are respectively connected with the analog signal photoelectric conversion module 202;
The serial port communication module 106 is connected with the serial port photoelectric conversion module 203;
the ethernet communication interface module 107 is connected to the ethernet fiber optic conversion module 204.
The network communication interface of the measurement and control platform 1 receives the working parameters and the operation instructions issued by the upper-level command center, and then generates corresponding switch operation, serial port communication and time sequence control through each functional module of the measurement and control platform 1, is connected to the controlled unit through different functional modules of the optical fiber communication processing unit 2, and returns the operation information of the upper-level command center.
In a preferred embodiment, the timing signal generation module 102 employs an Xilinx Virtex-5 reconfigurable I/O (RIO) FPGA core to implement logic control, input output, timing, triggering, and synchronization design.
In a preferred embodiment, the digital input/output module 103 employs a bi-directional 100ns high-speed digital input/output module, which generates system operation timing pulses, switching control signals, and collects monitoring status information in real time.
In a preferred embodiment, the analog signal output module 104 employs a 16 bit/+ -10V output module to generate parameter settings such as operating voltages of the high power microwave source primary power source and trigger source devices.
In a preferred embodiment, serial port communication module 106 uses an RS422/RS485 serial interface module to communicate with the controlled unit to effect information exchange.
In a preferred embodiment, the data acquisition module 105 is separated from the acquisition module by a 16 bit difference.
In a preferred embodiment, the Ethernet communication interface module 107 employs a single-mode, dual-fiber gigabit fiber transceiver.
In a preferred embodiment, the working wavelength of the optical fiber communication processing unit 2 digital signal photoelectric conversion module 201 is 820nm, the highest transmission rate is 5MdB, the transmission distance can reach 4km, the transmitted digital signal is input into the optical transmitter through the driving amplifying circuit in the form of TTL level, the receiving end realizes photoelectric conversion to output the digital signal through the optical receiver, and the optical fiber is a multimode optical fiber.
In a preferred embodiment, the optical fiber communication processing unit 2 analog signal photoelectric conversion module 202 adopts an optical fiber isolation transmission device based on V/F modulation to complete transmission and electrical isolation of high-power microwave source voltage analog signals: the direct current signal detected on the high-voltage side of the fiber isolation based on frequency modulation is converted into a frequency signal through a V/F circuit, and then the frequency signal is used for driving a light source; electrical/optical (E/O) converts electrical energy to optical energy, coupled into an optical fiber; the optical/electrical (O/E) converts the received optical signal into an electrical signal (frequency) that is recovered via F/V to the original measurement signal.
In a preferred embodiment, the measurement and control platform 1 is connected to a single-mode dual-fiber gigabit optical fiber transceiver (i.e. an ethernet optical fiber conversion module 204) through an ethernet communication interface module to perform photoelectric conversion of transmission signals, generates a data frame and an instruction frame through an RS422/RS485 serial interface module (i.e. a serial port communication module 106), and converts the data frame and the instruction frame into optical signals through an RS422/RS485 fiber conversion module (i.e. a serial port photoelectric conversion module 203) to perform communication.
The measurement and control platform 1 performs two-layer design according to the implementation function through the RT and the FPGA of a compact real-time input output system (compactRIO), wherein the implementation of the function with higher real-time requirement is placed in the FPGA layer, such as: high-power microwave source time sequence flow control, I/O data acquisition and output, safety interlocking, automatic emergency fault processing, CAN bus communication and other functions;
the functions with low requirements on man-machine interaction operation and real-time performance are realized in an RT layer, such as upper/lower computer network communication, high-power microwave source state inquiry and the like.
The FPGA layer program is developed by an upper computer LabVIEW FPGA module, is compiled by FPGA Compile Worker to generate a bit file, and is deployed into an FPGA case through the Ethernet; the RT layer program is developed and deployed into the Real-Time controller by an upper computer LabVIEW Real-Time module to run.
In a preferred embodiment, the invention further comprises an electromagnetic shielding cabinet, wherein the measurement and control platform 1 and the optical fiber communication processing unit 2 are arranged in the electromagnetic shielding cabinet (the shielding effectiveness is not less than 60dB in the frequency range of 20 MHz-10 GHz);
the electromagnetic shielding cabinet comprises a cabinet body and a shielding door;
The electromagnetic shielding cabinet body is assembled into a cabinet body by welding galvanized steel plates, and is subjected to galvanization and plastic spraying anti-corrosion treatment;
the shielding door adopts a shielding reed and a cold-rolled steel plate to form a door leaf by welding;
a double-core shielding silk screen is filled between the cabinet body and the adapter plate, and the other gap parts adopt shielding silk screens; the communication signals inside and outside the cabinet body are introduced in the form of optical cables through special optical fiber waveguides; the shielding ventilation window is made into a cut-off waveguide form, the waveguide window is formed by a plurality of small waveguides, the cross section of each small waveguide is hexagonal, and the insertion attenuation of the small waveguides is consistent with the index of the shielding cabinet.
The single-phase isolation transformer is adopted to provide power input of the shielding cabinet, so that the influence of voltage fluctuation of a main power grid and crosstalk of a high-power microwave source line on a measurement and control system is reduced; meanwhile, the shielding cabinet further suppresses interference noise introduced through the power cable by adopting a power filter, the leakage current is of a mA level, the voltage drop is less than 1V, and the insertion loss reaches 100dB in the frequency range from 14kHz to 40 GHz. Because the isolation filter technology such as an isolation transformer and a power filter is adopted, the interference noise introduced into the internal measurement and control system through the power cable is restrained; the control equipment is arranged in the electromagnetic shielding cabinet, and the shielding effectiveness is not less than 60dB in the required frequency range of 20 MHz-10 GHz; the control system ground wire is laid in groups, so that the signal ground and the high-voltage ground can be separated, and the phenomenon that the measurement and control system is damaged due to the fact that the instantaneous potential of the ground wire is raised when a high-power microwave source works is avoided.
In a preferred embodiment, the all-fiber communication high-power microwave source measurement and control system comprises a measurement and control platform 1 and a fiber communication processing unit 2. The measurement and control platform 1 comprises an embedded control processor module 101, a time sequence signal generation module 102, a digital input/output module 103, an analog signal output module 104, a data acquisition module 105, a serial port communication module 106 and an Ethernet communication interface module 107; the optical fiber communication processing unit 2 includes a digital signal photoelectric conversion module 201, an analog signal photoelectric conversion module 202, a serial port photoelectric conversion module 203, and an ethernet optical fiber conversion module 204. The embedded control processor module 101 of the measurement and control platform 1 is a core, receives working parameters and operation instructions issued by a remote control center through a network communication interface via an Ethernet optical fiber conversion module 204, generates corresponding switch operation or state collection through a digital signal photoelectric conversion module 201 by a digital input/output module 103, outputs parameter setting through an analog signal output module 104 via an analog signal photoelectric conversion module 202, collects measurement data through a data collection module 105 via the analog signal photoelectric conversion module 202, realizes serial communication with a high-power microwave source controlled unit through a serial communication module 106 via a serial photoelectric conversion module 203, and returns operation information of the control center.
The embedded control processor module 101 adopts a fastening real-time controller cRIO-9024 as an embedded system core, the timing signal generation and digital input/output module 103 adopts a timing/counting and 8-channel bidirectional 100ns high-speed digital input/output module NI 9401, the analog signal output module 104 adopts an NI 9263 (16-bit, +/-10V analog output), the data acquisition module 105 adopts an NI 9205 (16-channel differential isolation input), the serial port communication module 106 adopts a cRIO four-port RS422/RS485 serial interface module NI 9871, the Ethernet optical fiber conversion module 204 adopts a single-mode double-fiber gigabit optical transceiver HTB-GS-03, the serial port photoelectric conversion module 203 adopts an RS422/RS485 fiber converter ADAM-4541, the optical fiber interface adopts a An Huagao (Avago Technology) HFBR 14/24 series XX-integrated photoelectric converter HFBR (transmission)/HFBR-2412 (reception), the analog signal photoelectric conversion module adopts a VFC chip 331, and the type of an LM connector is ST 202, and the optical fiber connector is adopting 62.5/125 mu m (wavelength optical fiber 820 nm).
As shown in fig. 2, after the system is started, communication instruction classification response and processing are performed: operating the controlled unit, setting working parameters and inquiring the working state; and starting operation after the operation is ready, generating a control signal according to the operation time sequence, and returning operation ending information after the operation is ended.
The high-power microwave source related technology verification test is carried out on the all-fiber communication high-power microwave source measurement and control system under the structural module, and the following results are obtained under the conditions that the output voltage of an electron beam source is hundreds of kilovolts, the current is tens of kiloamperes, the power GW magnitude is about hundreds of ns: the all-fiber communication high-power microwave source measurement and control system works at 1 Hz-tens Hz for 1 s-tens s, and is stable in long-term repeated work and reliable in performance.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1.A full optical fiber communication high-power microwave source measurement and control system is characterized in that: the system comprises a measurement and control platform and an optical fiber communication processing unit; the measurement and control platform comprises an embedded control processor module, a time sequence signal generation module, a digital input/output module, an analog signal output module, a data acquisition module, a serial port communication module and an Ethernet communication interface module;
The optical fiber communication processing unit comprises a digital signal photoelectric conversion module, an analog signal photoelectric conversion module, a serial port photoelectric conversion module and an Ethernet optical fiber conversion module;
the time sequence signal generating module and the digital input/output module are respectively connected with the digital signal photoelectric conversion module;
the analog signal output module and the data acquisition module are respectively connected with the analog signal photoelectric conversion module;
The serial port communication module is connected with the serial port photoelectric conversion module;
the Ethernet communication interface module is connected with the Ethernet optical fiber conversion module;
The embedded control processor module receives working parameters and operation instructions issued by the remote control center through the Ethernet communication interface module and the Ethernet optical fiber conversion module, generates corresponding switch operation or state acquisition through the digital input/output module and the digital signal photoelectric conversion module, outputs parameter setting through the analog signal output module and the analog signal photoelectric conversion module, acquires measurement data through the data acquisition module and the analog signal photoelectric conversion module, realizes serial communication with the high-power microwave source controlled unit through the serial communication module and the serial photoelectric conversion module, and returns operation information of the control center.
2. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the timing signal generation module employs a Xilinx Virtex-5 reconfigurable I/O (RIO) FPGA core.
3. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the digital input/output module adopts a bidirectional 100ns high-speed digital input/output module.
4. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the analog signal output module adopts a 16-bit/+/-10V output module.
5. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the serial port communication module adopts an RS422/RS485 serial interface module.
6. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the data acquisition module adopts a 16-bit difference separation acquisition module.
7. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the Ethernet communication interface module adopts a single-mode double-fiber gigabit optical fiber transceiver.
8. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the optical fiber communication processing unit analog signal photoelectric conversion module adopts an optical fiber isolation transmission device based on V/F modulation.
9. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the measurement and control platform is connected with the single-mode double-fiber gigabit optical fiber transceiver through the Ethernet communication interface module to perform photoelectric conversion of transmission signals, generates data frames and command frames through the RS422/RS485 serial interface module, and converts the data frames and command frames into optical signals through the RS422/RS485 fiber conversion module to perform communication.
10. The all-fiber communication high-power microwave source measurement and control system according to claim 1, wherein the system comprises the following components: the system also comprises an electromagnetic shielding cabinet, wherein the measurement and control platform and the optical fiber communication processing unit are arranged in the electromagnetic shielding cabinet;
The electromagnetic shielding cabinet comprises a cabinet body and a shielding door; the electromagnetic shielding cabinet body is assembled into a cabinet body by welding galvanized steel plates, and is subjected to galvanization and plastic spraying anti-corrosion treatment; the shielding door adopts a shielding reed and a cold-rolled steel plate to form a door leaf by welding.
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| CN112947363B (en) * | 2021-01-29 | 2023-06-20 | 中国工程物理研究院流体物理研究所 | Strong current accelerator machine quick protection system based on cRIO |
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| WO2018098606A1 (en) * | 2016-12-02 | 2018-06-07 | 中国科学院地质与地球物理研究所 | High-precision synchronous data transmission method and device for vibration monitoring system collaboratively using ethernet and serial port rs-232 |
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| WO2018098606A1 (en) * | 2016-12-02 | 2018-06-07 | 中国科学院地质与地球物理研究所 | High-precision synchronous data transmission method and device for vibration monitoring system collaboratively using ethernet and serial port rs-232 |
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