CN113012888A - Multifunctional monitoring system for superconducting magnet - Google Patents
Multifunctional monitoring system for superconducting magnet Download PDFInfo
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- CN113012888A CN113012888A CN202110289243.1A CN202110289243A CN113012888A CN 113012888 A CN113012888 A CN 113012888A CN 202110289243 A CN202110289243 A CN 202110289243A CN 113012888 A CN113012888 A CN 113012888A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 102
- 239000001307 helium Substances 0.000 claims abstract description 71
- 229910052734 helium Inorganic materials 0.000 claims abstract description 71
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 238000012545 processing Methods 0.000 claims abstract description 56
- 238000006243 chemical reaction Methods 0.000 claims abstract description 53
- 238000010791 quenching Methods 0.000 claims abstract description 52
- 238000005259 measurement Methods 0.000 claims abstract description 47
- 238000013480 data collection Methods 0.000 claims abstract description 15
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 12
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 6
- 238000012360 testing method Methods 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 230000006870 function Effects 0.000 abstract description 28
- 230000003993 interaction Effects 0.000 abstract description 7
- 230000002452 interceptive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 2
- 238000002595 magnetic resonance imaging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
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- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
- H02H1/0084—Details of emergency protective circuit arrangements concerning transmission of signals by means of pilot wires or a telephone network; watching of these wires
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/001—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for superconducting apparatus, e.g. coils, lines, machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Abstract
The invention discloses a multifunctional monitoring system for a superconducting magnet, which comprises a data collection unit, an information conversion processing unit, an alarm feedback unit, an information exchange unit, a display unit and a shell unit, wherein the data collection unit is connected with the information conversion processing unit; the data collection unit is used for collecting signals of the superconducting magnet and the helium compressor; the information conversion processing unit is used for converting the received signals of the superconducting magnet and the helium compressor into information which can be directly read; the display unit is used for directly reading information and displaying the information through the calling of the core board; the user inputs an operation debugging instruction for feedback through the information exchange unit according to the information read by the display unit; the alarm feedback unit is used for alarm feedback of magnet emergency and safety problems. The multifunctional monitoring system for the superconducting magnet has the functions of temperature measurement, liquid helium level measurement, pressure measurement and control, emergency quench, alarm and control interaction, has good interface interactivity, is convenient for operators to operate, and can give a fault alarm in time.
Description
Technical Field
The invention belongs to the technical field of superconducting magnet control, relates to the technical field of superconducting magnet monitoring information and feedback operation, and particularly relates to a multifunctional monitoring system for a superconducting magnet.
Background
With the rapid development of the superconducting magnet technology, the superconducting magnet has important practical functions and huge application prospects in the fields of electricians, transportation, medical treatment, military industry and scientific experiments, for example, the fields of medical treatment and scientific research have already achieved practical benefits, for example, magnetic resonance imaging equipment adopting the superconducting magnet has become one of the most popular clinical diagnosis equipment in hospitals at present, and thousands of magnetic resonance imaging equipment are used in hospitals all over the world. In addition, scientific instruments such as superconducting nuclear magnetic resonance spectrometers have become commercial products and are widely used.
When the superconducting product is used, a quench state is easy to occur, a large amount of helium can be volatilized in a small space in a short time in the quench state, based on safety and cost consideration, a monitoring system needs to be developed, feedback magnet state information can be monitored in real time, manual control is carried out through an interaction unit, or automatic control is carried out through an information processing unit, alarm information is sent remotely, and technicians are reminded in time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a multifunctional monitoring system for a superconducting magnet, which can monitor and feed back the state information of the magnet at any time, has the functions of real-time measurement and timing storage of information such as temperature, liquid level, pressure and the like, has good interface interactivity, is convenient for operators to operate, and can feed back fault alarm in time; the system can be manually controlled through the information interaction unit or automatically controlled through the information conversion processing unit, can remotely send alarm information and timely remind technicians and users to check, and is an accurate, timely and effective monitoring system.
The technical scheme for realizing the purpose is as follows: a multifunctional monitoring system for a superconducting magnet is externally connected with the superconducting magnet and a helium compressor, and consists of a data collection unit, an information conversion processing unit, an alarm feedback unit, an information exchange unit, a display unit and a shell unit, wherein:
the shell unit comprises a filter plate and a monitoring system shell, and the information conversion processing unit, the alarm feedback unit, the information exchange unit and the display unit are respectively arranged in the monitoring system shell; the filter plate is arranged between the monitoring system shell and the superconducting magnet;
the information conversion processing unit comprises a modulation processing circuit, an analog-digital converter and a core board which are connected in sequence;
the data collection unit is connected with the modulation processing circuit of the information conversion processing unit;
the alarm feedback unit, the information exchange unit and the display unit are respectively connected with the core board;
the data collection unit is used for collecting signals of the superconducting magnet and the helium compressor and respectively sending the signals of the superconducting magnet and the helium compressor to the modulation processing circuit of the information conversion processing unit through signal cables;
the information conversion processing unit is used for converting the received signals of the superconducting magnet and the helium compressor into information which can be directly read;
the display unit calls the directly readable information through the core board and displays the information;
the user inputs an operation debugging instruction for feedback through the information exchange unit according to the information read by the display unit;
the alarm feedback unit is used for alarm feedback of magnet emergency and safety problems.
The multifunctional monitoring system for the superconducting magnet is characterized in that the data collection unit comprises a temperature measurement module, a liquid helium level measurement module, a pressure measurement and control module and a helium compressor working state signal measurement and control module;
the temperature measuring module comprises a temperature sensor arranged inside the superconducting magnet and is used for measuring a temperature signal inside the superconducting magnet;
the liquid helium liquid level measurement module comprises a superconducting magnet liquid level meter arranged inside the superconducting magnet and is used for measuring a liquid helium liquid level signal inside the superconducting magnet;
the pressure measurement and control module comprises a pressure sensor arranged in the superconducting magnet and is used for measuring and controlling a pressure signal in the superconducting magnet;
the helium compressor working state signal measurement and control module is arranged on the helium compressor and used for measuring and controlling a start-stop signal and a pressure abnormity alarm signal of the helium compressor;
the superconducting magnet is connected with a modulation processing circuit of the information conversion processing unit through a 19PIN temperature signal cable, a 10PIN temperature signal cable, a pressure transmitter signal cable and a 55PIN signal cable; the 19PIN temperature signal cable and the 10PIN temperature signal cable are used for transmitting internal temperature signals of the superconducting magnet; the pressure transmitter signal cable is used for transmitting a pressure signal inside the superconducting magnet, and the 55PIN signal cable is used for transmitting a liquid helium liquid level inside the superconducting magnet and a working condition signal of a coil of the superconducting magnet;
the helium compressor is connected with the modulation processing circuit of the information conversion processing unit through a helium compressor signal cable; the helium compressor signal cable is used for transmitting a start-stop signal and a pressure abnormity alarm signal of the helium compressor.
According to the multifunctional monitoring system for the superconducting magnet, a superconducting magnet internal temperature signal, a superconducting magnet internal pressure signal, a superconducting magnet internal liquid helium liquid level signal, a superconducting magnet coil working condition signal, a helium compressor start-stop signal and a pressure abnormity alarm signal sequentially pass through the modulation processing circuit, the analog-digital converter and the core board and are converted into corresponding information which can be directly read.
The above multifunctional monitoring system for superconducting magnets, wherein the temperature sensor is a multi-channel temperature sensor, and the monitoring system controls the temperature sensor to perform power-on self-test, restart self-test, manual power-on self-test, and self-test every 4h on internal temperature signals of the superconducting magnet, and stores corresponding detection data;
the superconducting magnet liquid level meter adopts a double-channel liquid level meter, the double-channel liquid level meter comprises a main measurement channel and an auxiliary measurement channel, and the auxiliary measurement channel is automatically opened or the main measurement channel and the auxiliary measurement channel are manually switched when the main measurement channel judges that the work is abnormal;
the monitoring system controls the superconducting magnet liquid level meter to perform power-on self-test, restart self-test, manual power-on self-test and self-test every 4h on internal liquid level signals of the superconducting magnet, and stores corresponding detection data;
the monitoring system controls the pressure sensor to perform power-on self-test, restart self-test, manual power-on self-test and self-test once every 30 minutes on the internal pressure signal of the superconducting magnet, and stores corresponding detection data.
The pressure measurement and control module controls the heater to work according to a set threshold value, and automatically adjusts the internal pressure of the superconducting magnet.
The multifunctional monitoring system for the superconducting magnet is characterized in that the alarm feedback unit comprises an alarm unit and a feedback unit, wherein the alarm unit comprises a state indicator lamp module, a buzzer module and a GSM (global system for mobile communications) component; the feedback unit comprises an emergency quench module, an EIS heating module and a standby power supply module, wherein:
the state indicator lamp module comprises a state indicator lamp driving circuit connected with the core board and a state indicator lamp connected with the state indicator lamp driving circuit;
the buzzer module comprises a buzzer driving circuit connected with the core board and a buzzer connected with the buzzer driving circuit;
the GSM component comprises a GSM module connected with the core board and an external antenna connected with the GSM module;
the emergency quench module comprises an emergency quench heater control circuit connected with the core board and an emergency quench switch connected with the emergency quench heater control circuit, and in an emergency state, the emergency quench switch is pressed down to provide electric energy for the quench heater, so that the superconducting magnet is subjected to active quench; after the emergency quench switch is pressed down, a reset indicator lamp on the emergency quench switch is lightened for prompting, so that the long-time work of a quench heater is avoided;
the EIS heating module comprises an EIS heater connected with the core board, the shielding function control of the superconducting magnet is completed by turning on the EIS heater, a program is preset in the EIS heater, and the EIS heater is turned on at a fixed period and with a fixed duration; or the EIS heater is triggered to work by inputting an instruction by a user, and the heating time of the single EIS heater is set;
the standby power supply module comprises a standby power supply circuit connected with the core board and a standby power supply connected with the standby power supply circuit; the standby power supply module is used for providing 24V voltage for 48h for continuous power supply through the lithium battery pack and the conversion circuit after the external power supply is powered off; when the external power supply recovers power supply, the standby power supply module automatically charges; meanwhile, the emergency power supply provides single energy supply for the emergency quench module;
when the voltage is lower than 23V and lasts for 24h or the standby power supply module is started, the GSM assembly sends alarm information corresponding to the user.
In the above multifunctional monitoring system for superconducting magnets, when real-time measurement data of signals of the superconducting magnet and the helium compressor exceed the upper and lower limits of the corresponding threshold preset in the monitoring system, the alarm feedback unit starts an alarm function;
the alarm function is realized by multi-way real-time alarm, and comprises the steps of alarming through a buzzer, alarming through a state indicator lamp, displaying error information through a display unit for alarming and sending alarm information to a mobile phone of a user through a GSM assembly;
the alarm information contains information of the device, a magnet serial number and a monitoring serial number, and a fault code of the judgment information.
The above multifunctional monitoring system for superconducting magnet, wherein the information exchange unit includes an RS232 interface module, a USB interface module, a TTL interface module, a NET interface module, an RJ45 network interface module, an RTC clock module, an SD card storage module and a TFT memory card module, wherein:
the RS232 interface module comprises an RS232 level conversion circuit connected with the core board and an RS232 interface connected with the RS232 level conversion circuit;
the USB interface module comprises a USB drive circuit connected with the core board and a USB interface connected with the USB drive circuit;
the TTL interface module comprises a TTL interface connected with the core board;
the NET interface module comprises a NET interface connected with the core board;
the RJ45 network port module comprises an RJ45 network driving circuit connected with the core board and an RJ45 network port connected with the RJ45 network driving circuit;
the RTC clock module comprises an RTC clock connected with the core board and a button battery connected with the RTC clock;
the SD card storage module comprises an SD card connected with the core board;
the TFT memory card module comprises a TFT driving circuit connected with the core board and a TFT memory card connected with the TFT driving circuit.
The multifunctional monitoring system for the superconducting magnet is characterized in that the display unit comprises an LCD display module and an LCD indicator light, wherein:
the LCD display module comprises a display conversion PCB connected with the core board and an LCD display screen connected with the display conversion PCB;
the LCD indicator lamp comprises a working indicator lamp, a warning lamp, a standby power supply indicator lamp and a pressure warning lamp.
The multifunctional monitoring system for the superconducting magnet is characterized in that the monitoring system shell comprises a monitoring shell and an ERDU shell; the ERDU housing is independently mounted outside the monitoring housing or integrated on the monitoring housing; an emergency quench switch is arranged on the ERDU shell; the monitoring system shell is made of high-strength aluminum alloy; the monitoring system housing cooperates with the filter plate to reduce external EMI interference.
The multifunctional monitoring system for the superconducting magnet is characterized in that a manual input keyboard is externally connected to the monitoring system.
The multifunctional monitoring system for the superconducting magnet measures, displays and remotely transmits parameters such as temperature, liquid level, pressure and the like in the magnet in real time when the superconducting magnet runs; automatically starting a corresponding module according to a set threshold, wherein the corresponding module comprises the steps of adjusting the internal pressure of a magnet, responding to quench in an emergency state, EIS heating, sound and lamp tube alarming and remotely sending an error code; an operator can input control information through the interactive interface, manually adjust the internal pressure of the magnet, heat the EIS and actively start the quench unit. The monitoring system is verified by mass production products, is simple in interactive operation, convenient and fast in remote alarm information acquisition and stable in automatic control module, and is an important component unit for continuous and stable work of the superconducting magnet.
Drawings
FIG. 1 is a diagram of the connection of the multifunctional monitoring system for superconducting magnet of the present invention with a superconducting magnet and a helium compressor;
FIG. 2 is a block diagram of a multifunctional monitoring system for a superconducting magnet according to the present invention;
fig. 3 is an internal schematic topology diagram of the multifunction monitoring system for superconducting magnet of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description is given with reference to the accompanying drawings:
referring to fig. 1, fig. 2 and fig. 3, in a preferred embodiment of the present invention, a multifunctional monitoring system for a superconducting magnet, which is externally connected with a superconducting magnet 100 and a helium compressor 200, the monitoring system 300 is composed of six parts, namely a data collecting unit 1, an information conversion processing unit 2, an alarm feedback unit 3, an information exchange unit 4, a display unit 5 and a housing unit, wherein:
the shell unit comprises a filter plate 61 and a monitoring system shell 62, and the information conversion processing unit 2, the alarm feedback unit 3, the information exchange unit 4 and the display unit 5 are respectively arranged in the monitoring system shell 62; the filter plate 61 is disposed between the monitoring system housing 62 and the superconducting magnet 100; the information conversion processing unit 2 comprises a modulation processing circuit 21, an analog-digital converter 22 and a core board 23 (adopting an AM4379 core board) which are connected in sequence; the data collection unit 1 is connected with the modulation processing circuit 21 of the information conversion processing unit 2; the alarm feedback unit 3, the information exchange unit 4 and the display unit 5 are respectively connected with the core board 23. The analog-digital converter 22 is externally connected with a switching power supply 301.
The data collection unit 1 is used for collecting signals of the superconducting magnet and the helium compressor, and respectively sending the signals of the superconducting magnet and the helium compressor to the modulation processing circuit 21 of the information conversion processing unit 2 through signal cables; the information conversion processing unit 2 is used for converting the received signals of the superconducting magnet and the helium compressor into information which can be directly read; the display unit 5 calls the directly readable information through the core board 23 and displays the information; a user can read information directly through the information exchange unit 4 and input an operation debugging instruction through the information exchange unit 4; the alarm feedback unit 3 is used for alarm feedback of magnet emergencies and safety issues.
The data collection unit 1 comprises a temperature measurement module, a liquid helium liquid level measurement module, a pressure measurement and control module and a helium compressor working state signal measurement and control module;
the temperature measuring module comprises a temperature sensor arranged inside the superconducting magnet and is used for measuring a temperature signal inside the superconducting magnet; the liquid helium level measurement module comprises a superconducting magnet liquid level meter arranged inside the superconducting magnet 100 and used for measuring a liquid helium level signal inside the superconducting magnet 100; the pressure measurement and control module comprises a pressure sensor arranged inside the superconducting magnet 100 and is used for measuring and controlling a pressure signal inside the superconducting magnet; the helium compressor working state signal measurement and control module is arranged on the helium compressor 200 and used for measuring and controlling start-stop signals and pressure abnormity alarm signals of the helium compressor.
Referring to fig. 1 and 3, superconducting magnet 100 is connected to modulation processing circuit 21 of information conversion processing unit 2 through 19PIN temperature signal cable 71, 10PIN temperature signal cable 72, pressure transmitter signal cables 73 and 55PIN signal cable 74; the 19PIN temperature signal cable 71 and the 10PIN temperature signal cable 72 are used for transmitting internal temperature signals of the superconducting magnet; the pressure transmitter signal cable 73 is used for transmitting a pressure signal inside the superconducting magnet, and the 55PIN signal cable 74 is used for transmitting a liquid helium liquid level inside the superconducting magnet and a working condition signal of a coil of the superconducting magnet;
the helium compressor 200 is connected with the modulation processing circuit 21 of the information conversion processing unit 2 through a helium compressor signal cable 75; the helium compressor signal cable 75 is used for transmitting a start-stop signal and a pressure abnormity alarm signal of the helium compressor.
One end of the 19PIN temperature signal cable 71 and one end of the 10PIN temperature signal cable 72 are connected with the superconducting magnet 100, and the other ends are connected with the modulation processing circuit 21 of the information conversion processing unit 2 through a DB25 MALE joint; one end of the pressure transmitter signal cables 73 and 55PIN signal cables 75 is connected to the superconducting magnet 100, and the other end is connected to the modulation processing circuit 21 of the information conversion processing unit 2 through the DB25 FEMALE signal cable; the helium compressor signal cable 75 is composed of a helium compressor cable and DB15 signal cables provided at both ends thereof; one end of the helium compressor cable is connected to the helium compressor 200 through a DB15 signal cable, and the other end is connected to the modulation processing circuit 21 of the information conversion processing unit 2 through a DB15 signal cable.
The internal temperature signal of the superconducting magnet, the internal pressure signal of the superconducting magnet, the internal liquid helium level signal of the superconducting magnet, the working condition signal of a coil of the superconducting magnet, the start-stop signal of the helium compressor and the abnormal pressure alarm signal sequentially pass through the modulation processing circuit 21, the analog-digital converter 22 and the core board 23 and are converted into corresponding information which can be directly read.
In the data collection unit 1, a temperature sensor adopts a multi-channel temperature sensor, a monitoring system controls the temperature sensor to perform power-on self-test, restart self-test, manual power-on self-test and self-test every 4h on internal temperature signals of the superconducting magnet, and corresponding detection data are stored; the superconducting magnet liquid level meter adopts a double-channel liquid level meter, the double-channel liquid level meter comprises a main measurement channel and an auxiliary measurement channel, and the auxiliary measurement channel is automatically opened or the main measurement channel and the auxiliary measurement channel are manually switched when the main measurement channel judges that the work is abnormal; the monitoring system controls the superconducting magnet liquid level meter to perform power-on self-detection, restart self-detection, manual power-on self-detection and self-detection of the internal liquid level signal of the superconducting magnet every 4h, and stores corresponding detection data; the monitoring system controls the pressure sensor to carry out power-on self-test, restart self-test, manual power-on self-test and self-test once every 30 minutes on the internal pressure signal of the superconducting magnet, and stores corresponding detection data. The pressure measurement and control module can control the heater to work according to a set threshold value, and automatically adjust the internal pressure of the superconducting magnet.
The invention discloses a multifunctional monitoring system for a superconducting magnet, wherein an alarm feedback unit 3 comprises an alarm unit and a feedback unit, and the alarm unit comprises a state indicator lamp module, a buzzer module and a GSM (global system for mobile communications) component; the feedback unit comprises an emergency quench module, an EIS heating module and a standby power supply module, wherein:
the status indicator lamp module comprises a status indicator lamp driving circuit 311 connected with the core board 23 and a status indicator lamp 312 connected with the status indicator lamp driving circuit 311; the buzzer module comprises a buzzer driving circuit 321 connected with the core board 23 and a buzzer 322 connected with the buzzer driving circuit 321; the GSM module comprises a GSM module 33 connected with the core board 23 and an external antenna 8 connected with the GSM module 33; the emergency quench module comprises an emergency quench heater control circuit 34 connected with the core board 23 and an emergency quench switch 10 connected with the emergency quench heater control circuit 34, wherein in an emergency state, the emergency quench switch 10 is pressed down to provide electric energy for the quench heater, and the superconducting magnet 100 is subjected to active quench; after the emergency quench switch 10 is pressed down, a reset indicator lamp on the emergency quench switch is turned on for prompting, so that the long-time work of the quench heater is avoided; the EIS heating module comprises an EIS heater connected with the core board 23, the shielding function control of the superconducting magnet is completed by turning on the EIS heater, a program is preset in the EIS heater, and the EIS heater is turned on at a fixed period and a fixed duration; or the EIS heater is triggered to work by inputting an instruction by a user, and the heating time of the single EIS heater is set.
The standby power supply module comprises a standby power supply circuit 35 connected with the core board 23 and a standby power supply 9 connected with the standby power supply circuit 35; the standby power supply 9 comprises a lithium battery pack 91 and a conversion circuit 92(DC/AC conversion circuit) connected with the lithium battery pack 91, and the standby power supply module is used for providing 24V voltage 48h for continuous power supply through the lithium battery pack 91 and the conversion circuit 92 after the external power supply is powered off; when the external power supply recovers power supply, the standby power supply module automatically charges; meanwhile, the emergency power supply 9 provides single energy supply for the emergency quench module, namely, the emergency power supply 9 can provide enough electric energy for the single emergency quench of the emergency quench module. When the voltage is lower than 23V and lasts for 24h or the standby power supply module is started, the GSM component sends alarm information corresponding to the user.
When the real-time measurement data of the signals of the superconducting magnet and the helium compressor exceed the upper limit and the lower limit of the corresponding preset threshold values in the monitoring system, the alarm feedback unit 3 starts an alarm function; the alarm function is realized by multi-way real-time alarm, including alarm through a buzzer, alarm through a status indicator lamp, alarm through display unit display error information and alarm information sent to a user mobile phone through a GSM component; the alarm information contains information of the device, a magnet serial number and a monitoring serial number, and a fault code of the determination information.
The information exchange unit 4 is used for reading superconducting magnet state information and inputting operation debugging instructions, and the information exchange unit 4 provides various interfaces for facilitating operation and improving compatibility; the remote control system can realize multi-equipment, multi-system and remote operation, and greatly provides the accessibility of equipment operation.
The information exchange unit 4 comprises an RS232 interface module, a USB interface module, a TTL interface module, a NET interface module, an RJ45 network port module, an RTC clock module, an SD card storage module and a TFT memory card module, wherein:
the RS232 interface module includes an RS232 level conversion circuit 411 connected to the core board 23 and an RS232 interface 412 connected to the RS232 level conversion circuit 411; the RS232 interface can carry out upgrading operation;
the USB interface module includes a USB driver circuit 421 connected to the core board 23 and a USB interface 422 connected to the USB driver circuit 421;
the TTL interface module includes a TTL interface 43 connected to the core board 23;
the NET interface module includes a NET interface (not shown) connected to the core board 23; the NET interface can be used for remote upgrading operation;
the RJ45 network port module comprises an RJ45 network driving circuit 441 connected with the core board 23 and an RJ45 network port 442 connected with the RJ45 network driving circuit 441;
the RTC clock module comprises an RTC clock 451 connected with the core board 23 and a button battery 452 connected with the RTC clock 451; the RTC clock 451 is powered by the button battery 452 and the standby power supply, so that the RTC clock module is ensured to continuously run, the clock is still normal after power failure and restart, and inaccurate information recording time caused by power failure is avoided.
The SD card memory module includes an SD card (not shown) connected to the core board 23; the SD card records various data and fault information of the operation of the superconducting magnet in real time and is convenient to export through various interfaces.
The TFT memory card module includes a TFT driving circuit 461 connected to the core board 23 and a TFT memory card 462 connected to the TFT driving circuit 461.
The display unit 5 includes an LCD display module and an LCD indicator lamp, wherein: the LCD display module includes a display conversion PCB board 51 connected to the core board 23 and an LCD display screen 52 connected to the display conversion PCB board 51. The LCD indicator lamp comprises a working indicator lamp, a warning lamp, a standby power supply indicator lamp and a pressure warning lamp. The monitoring system is externally connected with a manual input keyboard. The LCD display screen 52 displays the information that can be directly read after the information conversion processing unit 2 is converted, and the LCD display screen 52 cooperates with a manual input keyboard or an external interface to perform interactive control on the monitoring system.
The monitoring system shell comprises a monitoring shell and an ERDU shell; the ERDU shell is independently arranged outside the monitoring shell or integrated on the monitoring shell; an emergency quench switch 10 is arranged on the ERDU shell; the monitoring system shell is made of high-strength aluminum alloy; the monitoring system housing 62 cooperates with the filter plate 61 to reduce external EMI interference.
According to the multifunctional monitoring system for the superconducting magnet, a plurality of temperature sensors in the superconducting magnet 100 send temperature information to the monitoring system through signal cables, resistance values corresponding to temperatures provided by temperature sensor manufacturers are compared, the resistance values are converted into signals capable of being directly read through a modulation processing circuit 21, an analog-digital converter 22 and a core board 23, the signals are directly displayed through a display unit, information is read through an interface of an information exchange unit 4 or information is sent remotely to be read, and conversion and display of signals of a superconducting magnet liquid level meter and signals of pressure sensors are achieved in the same way. Information such as a helium compressor start-stop signal, a pressure abnormity alarm signal and the like is read through a signal cable, and is converted into readable information by the information conversion processing unit 2.
When the monitoring system identifies an emergency, the status indicator lamp 312 corresponding to the situation is turned on to alarm, and the buzzer 322 is electrified to work; the GSM module 331 and the external antenna 332 avoid the equipment from being affected by signals through the relay module, and send an alarm code to a preset mobile phone number.
The multifunctional monitoring system for the superconducting magnet has a temperature measuring function, a liquid helium level measuring function, a pressure measuring and controlling function, an emergency quench function, an alarm function, a control interaction function and an EIS heating function, wherein:
temperature measurement function:
the multi-channel temperature sensor is connected with a monitoring system through a 19PIN temperature signal cable 71 and a 10PIN temperature signal cable 72, and can display or read through an external interface on the LCD screen 52 after signal conditioning and AD conversion. Each temperature sensor can set alarm upper and lower limit thresholds through an input interface of the information exchange unit 4, when the temperature of a corresponding channel exceeds the threshold, the alarm module starts to work, all measured data are automatically stored once every 30 minutes, the temperature sensors in the startup and restart states can carry out self-checking, and all measured data can be consulted or read.
Liquid helium level measurement function:
the liquid helium level measurement adopts double-path measurement, the main channel liquid level meter works in a normal working state, the auxiliary channel liquid level measurement is automatically switched to in an abnormal state, and meanwhile, the measurement channel can be switched through manual operation.
The upper limit threshold value and the lower limit threshold value of liquid level alarm are manually set, when the liquid level exceeds the threshold value, the alarm module starts to work, all measurement data are automatically stored once every 4h, the power supply system of the liquid level meter is automatically closed after measurement is completed, unilateral measurement can be manually started through keys or input interfaces, the liquid level meter sensors can perform self-checking when the liquid level meter is started and restarted, and all measurement data can be consulted or read.
The pressure measurement and control function is as follows:
the monitoring superconducting magnet pressure transmitter monitors the internal pressure of the superconducting magnet, the upper limit threshold and the lower limit threshold of pressure monitoring are manually set, when the internal pressure is lower than the threshold, the heating resistor in the magnet is started to raise the pressure, the pressure sensor measures the pressure every 15s, control delay is caused, and the actual measurement range is increased by 5% margin. The pressure monitoring equipment can be manually triggered, all the measured data are automatically stored once every 30 minutes, the pressure sensor can perform self-checking in the starting and restarting states, and all the measured data can be consulted or read.
The emergency quench function:
urgent quench module accessible monitored control system supplies power, and after the external power source outage, reserve power module provides 24V power supply 48h through lithium cell group and converting circuit and lasts the power supply, resumes the power supply back, and reserve power supply automatic charging lasts 24h or starts reserve power supply unit when voltage is less than 23V, and the GSM unit all can send corresponding alarm information, and reserve power supply can provide sufficient electric energy for the urgent quench of single simultaneously. The emergency quench switch can be integrated on a monitoring control panel or independently placed at a position easy to touch, or two structures are adopted simultaneously, so that the operation is easier.
The alarm function is as follows:
the monitoring system judges whether the alarm function is started or not through a preset threshold value, simultaneously starts a state indicator light and a buzzer, and sends a diagnosis code to a preset target mobile phone through a GSM component according to the judged alarm information. The alarm information comprises a part A and a part B, wherein the part A is a magnet serial number and a monitoring serial number, the part B is a fault diagnosis code, and a person receiving the information can timely and accurately confirm fault magnets and fault information.
Controlling the interactive function:
the monitoring system is provided with abundant interactive interfaces, including an LCD display screen, a manual input keyboard, an RS232 interface, a USB interface, a TTL interface, a NET interface and the like, can adjust and observe monitoring information through controlling the keyboard and the LCD display screen, can read and control monitoring equipment through external interface connecting equipment, can remotely read and control the monitoring equipment through network access, and realizes the control diversity and convenience. The SD card storage, the RTC clock and the standby power supply ensure the accuracy and stability of the stored information and the completeness of the historical record.
EIS heating function:
the function presets a program, and an EIS heater is started at a fixed period and time; or the function is triggered through the input unit, and the single heating time length is set.
The multifunctional monitoring system for the superconducting magnet has the functions of temperature measurement, liquid helium level measurement, pressure measurement and control, emergency quench, alarm and control interaction; the mass production product verifies that the interaction operation is simple, the remote alarm information acquisition is convenient, and the automatic control module is stable, so that the superconducting magnet continuously and stably works as an important component unit.
In conclusion, the multifunctional monitoring system for the superconducting magnet can monitor and feed back the state information of the magnet at any time, has the functions of real-time measurement and timed storage of information such as temperature, liquid level, pressure and the like, has good interface interactivity, is convenient for operators to operate, and can give a timely fault alarm and feedback; the system can be manually controlled through the information interaction unit or automatically controlled through the information conversion processing unit, can remotely send alarm information and timely remind technicians and users to check, and is an accurate, timely and effective monitoring system.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. A multifunctional monitoring system for a superconducting magnet is externally connected with the superconducting magnet and a helium compressor, and is characterized in that the monitoring system consists of six parts, namely a data collection unit, an information conversion processing unit, an alarm feedback unit, an information exchange unit, a display unit and a shell unit, wherein:
the shell unit comprises a filter plate and a monitoring system shell, and the information conversion processing unit, the alarm feedback unit, the information exchange unit and the display unit are respectively arranged in the monitoring system shell; the filter plate is arranged between the monitoring system shell and the superconducting magnet;
the information conversion processing unit comprises a modulation processing circuit, an analog-digital converter and a core board which are connected in sequence;
the data collection unit is connected with the modulation processing circuit of the information conversion processing unit;
the alarm feedback unit, the information exchange unit and the display unit are respectively connected with the core board;
the data collection unit is used for collecting signals of the superconducting magnet and the helium compressor and respectively sending the signals of the superconducting magnet and the helium compressor to the modulation processing circuit of the information conversion processing unit through signal cables;
the information conversion processing unit is used for converting the received signals of the superconducting magnet and the helium compressor into information which can be directly read;
the display unit calls the directly readable information through the core board and displays the information;
the user inputs an operation debugging instruction for feedback through the information exchange unit according to the information read by the display unit;
the alarm feedback unit is used for alarm feedback of magnet emergency and safety problems.
2. The multifunctional monitoring system for the superconducting magnet according to claim 1, wherein the data collection unit comprises a temperature measurement module, a liquid helium level measurement module, a pressure measurement and control module and a helium gas compressor working state signal measurement and control module;
the temperature measuring module comprises a temperature sensor arranged inside the superconducting magnet and is used for measuring a temperature signal inside the superconducting magnet;
the liquid helium liquid level measurement module comprises a superconducting magnet liquid level meter arranged inside the superconducting magnet and is used for measuring a liquid helium liquid level signal inside the superconducting magnet;
the pressure measurement and control module comprises a pressure sensor arranged in the superconducting magnet and is used for measuring and controlling a pressure signal in the superconducting magnet;
the helium compressor working state signal measurement and control module is arranged on the helium compressor and used for measuring and controlling a start-stop signal and a pressure abnormity alarm signal of the helium compressor;
the superconducting magnet is connected with a modulation processing circuit of the information conversion processing unit through a 19PIN temperature signal cable, a 10PIN temperature signal cable, a pressure transmitter signal cable and a 55PIN signal cable; the 19PIN temperature signal cable and the 10PIN temperature signal cable are used for transmitting internal temperature signals of the superconducting magnet; the pressure transmitter signal cable is used for transmitting a pressure signal inside the superconducting magnet, and the 55PIN signal cable is used for transmitting a liquid helium liquid level inside the superconducting magnet and a working condition signal of a coil of the superconducting magnet;
the helium compressor is connected with the modulation processing circuit of the information conversion processing unit through a helium compressor signal cable; the helium compressor signal cable is used for transmitting a start-stop signal and a pressure abnormity alarm signal of the helium compressor.
3. The multifunctional monitoring system for the superconducting magnet according to claim 2, wherein the superconducting magnet internal temperature signal, the superconducting magnet internal pressure signal, the superconducting magnet internal liquid helium liquid level signal, the superconducting magnet coil working condition signal, the helium compressor start-stop signal and the pressure abnormality alarm signal are sequentially converted into corresponding directly readable information through the modulation processing circuit, the analog-digital converter and the core board.
4. The multifunctional monitoring system for a superconducting magnet according to claim 2,
the temperature sensor adopts a multi-channel temperature sensor, the monitoring system controls the temperature sensor to perform power-on self-test, restart self-test, manual power-on self-test and self-test every 4h on internal temperature signals of the superconducting magnet, and corresponding detection data are stored;
the superconducting magnet liquid level meter adopts a double-channel liquid level meter, the double-channel liquid level meter comprises a main measurement channel and an auxiliary measurement channel, and the auxiliary measurement channel is automatically opened or the main measurement channel and the auxiliary measurement channel are manually switched when the main measurement channel judges that the work is abnormal;
the monitoring system controls the superconducting magnet liquid level meter to perform power-on self-test, restart self-test, manual power-on self-test and self-test every 4h on internal liquid level signals of the superconducting magnet, and stores corresponding detection data;
the monitoring system controls the pressure sensor to perform power-on self-test, restart self-test, manual power-on self-test, self-test of the internal pressure signal of the superconducting magnet and the working condition signal of the coil of the superconducting magnet every 30 minutes, and stores corresponding detection data.
The pressure measurement and control module controls the heater to work according to a set threshold value, and automatically adjusts the internal pressure of the superconducting magnet.
5. The multifunctional monitoring system for the superconducting magnet according to claim 1, wherein the alarm feedback unit comprises an alarm unit and a feedback unit, the alarm unit comprises a status indicator lamp module, a buzzer module and a GSM component; the feedback unit comprises an emergency quench module, an EIS heating module and a standby power supply module, wherein:
the state indicator lamp module comprises a state indicator lamp driving circuit connected with the core board and a state indicator lamp connected with the state indicator lamp driving circuit;
the buzzer module comprises a buzzer driving circuit connected with the core board and a buzzer connected with the buzzer driving circuit;
the GSM component comprises a GSM module connected with the core board and an external antenna connected with the GSM module;
the emergency quench module comprises an emergency quench heater control circuit connected with the core board and an emergency quench switch connected with the emergency quench heater control circuit, and in an emergency state, the emergency quench switch is pressed down to provide electric energy for the quench heater, so that the superconducting magnet is subjected to active quench; after the emergency quench switch is pressed down, a reset indicator lamp on the emergency quench switch is lightened for prompting, so that the long-time work of a quench heater is avoided;
the EIS heating module comprises an EIS heater connected with the core board, the shielding function control of the superconducting magnet is completed by turning on the EIS heater, a program is preset in the EIS heater, and the EIS heater is turned on at a fixed period and with a fixed duration; or the EIS heater is triggered to work by inputting an instruction by a user, and the heating time of the single EIS heater is set;
the standby power supply module comprises a standby power supply circuit connected with the core board and a standby power supply connected with the standby power supply circuit; the standby power supply module is used for providing 24V voltage for 48h for continuous power supply through the lithium battery pack and the conversion circuit after the external power supply is powered off; when the external power supply recovers power supply, the standby power supply module automatically charges; meanwhile, the emergency power supply provides single energy supply for the emergency quench module;
when the voltage is lower than 23V and lasts for 24h or the standby power supply module is started, the GSM assembly sends alarm information corresponding to the user.
6. The multifunctional monitoring system for the superconducting magnet according to claim 5, wherein when real-time measurement data of signals of the superconducting magnet and the helium compressor exceed corresponding upper and lower threshold values preset in the monitoring system, the alarm feedback unit starts an alarm function;
the alarm function is realized by multi-way real-time alarm, and comprises the steps of alarming through a buzzer, alarming through a state indicator lamp, displaying error information through a display unit for alarming and sending alarm information to a mobile phone of a user through a GSM assembly;
the alarm information contains information of the device, a magnet serial number and a monitoring serial number, and a fault code of the judgment information.
7. The multifunctional monitoring system for the superconducting magnet of claim 1, wherein the information exchange unit comprises an RS232 interface module, a USB interface module, a TTL interface module, a NET interface module, an RJ45 network interface module, an RTC clock module, an SD card storage module and a TFT memory card module, wherein:
the RS232 interface module comprises an RS232 level conversion circuit connected with the core board and an RS232 interface connected with the RS232 level conversion circuit;
the USB interface module comprises a USB drive circuit connected with the core board and a USB interface connected with the USB drive circuit;
the TTL interface module comprises a TTL interface connected with the core board;
the NET interface module comprises a NET interface connected with the core board;
the RJ45 network port module comprises an RJ45 network driving circuit connected with the core board and an RJ45 network port connected with the RJ45 network driving circuit;
the RTC clock module comprises an RTC clock connected with the core board and a button battery connected with the RTC clock;
the SD card storage module comprises an SD card connected with the core board;
the TFT memory card module comprises a TFT driving circuit connected with the core board and a TFT memory card connected with the TFT driving circuit.
8. The multifunctional monitoring system for a superconducting magnet of claim 1, wherein the display unit comprises an LCD display module and an LCD indicator light, wherein:
the LCD display module comprises a display conversion PCB connected with the core board and an LCD display screen connected with the display conversion PCB;
the LCD indicator lamp comprises a working indicator lamp, a warning lamp, a standby power supply indicator lamp and a pressure warning lamp.
9. The multifunctional monitoring system for a superconducting magnet of claim 1, wherein the monitoring system enclosure comprises a monitoring enclosure and an ERDU enclosure; the ERDU housing is independently mounted outside the monitoring housing or integrated on the monitoring housing; an emergency quench switch is arranged on the ERDU shell; the monitoring system shell is made of high-strength aluminum alloy; the monitoring system housing cooperates with the filter plate to reduce external EMI interference.
10. The multifunctional monitoring system for superconducting magnets of claim 1, wherein the monitoring system is externally connected with a manual input keyboard.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113391662A (en) * | 2021-07-21 | 2021-09-14 | 浙江程运医学科技有限公司 | Real-time monitoring system for mri working state internet of things |
| CN113567900A (en) * | 2021-07-28 | 2021-10-29 | 上海辰光医疗科技股份有限公司 | Magnetic resonance superconducting magnet Internet of things system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09224919A (en) * | 1996-02-26 | 1997-09-02 | Ge Yokogawa Medical Syst Ltd | Environment monitoring device of superconducting magnet and mri device |
| US6838964B1 (en) * | 2003-11-26 | 2005-01-04 | Ge Medical Technology Services, Inc. | Method and apparatus for monitoring superconducting magnet data |
| US20060230769A1 (en) * | 2005-01-11 | 2006-10-19 | Kabushiki Kaisha Toshiba | Superconducting magnet device-monitoring system, method of monitoring superconducting magnet device and MRI device |
| CN101398470A (en) * | 2007-09-26 | 2009-04-01 | 西门子磁体技术有限公司 | Intelligent helium compressor |
| CN101881815A (en) * | 2009-05-06 | 2010-11-10 | 西门子迈迪特(深圳)磁共振有限公司 | Magnet monitoring unit testing system and magnet simulator |
| CN203693595U (en) * | 2013-11-20 | 2014-07-09 | 崔福进 | Nuclear magnetic resonance imaging system with remote monitoring device |
| CN106019004A (en) * | 2015-06-10 | 2016-10-12 | 北京斯派克科技发展有限公司 | Superconducting magnet monitor |
| CN208271677U (en) * | 2018-05-31 | 2018-12-21 | 南京磁享仪器技术有限公司 | A kind of liquid helium condensing superconducting magnet running state monitoring system again |
| CN110455341A (en) * | 2019-08-27 | 2019-11-15 | 中国科学院合肥物质科学研究院 | A kind of superconducting magnet monitor |
| CN111698877A (en) * | 2020-06-16 | 2020-09-22 | 广东电网有限责任公司 | Superconducting power integration system and monitoring method thereof |
-
2021
- 2021-03-18 CN CN202110289243.1A patent/CN113012888A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09224919A (en) * | 1996-02-26 | 1997-09-02 | Ge Yokogawa Medical Syst Ltd | Environment monitoring device of superconducting magnet and mri device |
| US6838964B1 (en) * | 2003-11-26 | 2005-01-04 | Ge Medical Technology Services, Inc. | Method and apparatus for monitoring superconducting magnet data |
| US20060230769A1 (en) * | 2005-01-11 | 2006-10-19 | Kabushiki Kaisha Toshiba | Superconducting magnet device-monitoring system, method of monitoring superconducting magnet device and MRI device |
| CN101398470A (en) * | 2007-09-26 | 2009-04-01 | 西门子磁体技术有限公司 | Intelligent helium compressor |
| CN101881815A (en) * | 2009-05-06 | 2010-11-10 | 西门子迈迪特(深圳)磁共振有限公司 | Magnet monitoring unit testing system and magnet simulator |
| CN203693595U (en) * | 2013-11-20 | 2014-07-09 | 崔福进 | Nuclear magnetic resonance imaging system with remote monitoring device |
| CN106019004A (en) * | 2015-06-10 | 2016-10-12 | 北京斯派克科技发展有限公司 | Superconducting magnet monitor |
| CN208271677U (en) * | 2018-05-31 | 2018-12-21 | 南京磁享仪器技术有限公司 | A kind of liquid helium condensing superconducting magnet running state monitoring system again |
| CN110455341A (en) * | 2019-08-27 | 2019-11-15 | 中国科学院合肥物质科学研究院 | A kind of superconducting magnet monitor |
| CN111698877A (en) * | 2020-06-16 | 2020-09-22 | 广东电网有限责任公司 | Superconducting power integration system and monitoring method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113391662A (en) * | 2021-07-21 | 2021-09-14 | 浙江程运医学科技有限公司 | Real-time monitoring system for mri working state internet of things |
| CN113567900A (en) * | 2021-07-28 | 2021-10-29 | 上海辰光医疗科技股份有限公司 | Magnetic resonance superconducting magnet Internet of things system |
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