CN107994563A - Power supply timing control circuit, magnetic resonance imaging system and power supply timing control method - Google Patents
Power supply timing control circuit, magnetic resonance imaging system and power supply timing control method Download PDFInfo
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- CN107994563A CN107994563A CN201610955469.XA CN201610955469A CN107994563A CN 107994563 A CN107994563 A CN 107994563A CN 201610955469 A CN201610955469 A CN 201610955469A CN 107994563 A CN107994563 A CN 107994563A
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- 238000002595 magnetic resonance imaging Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012806 monitoring device Methods 0.000 claims description 71
- 239000001307 helium Substances 0.000 claims description 28
- 229910052734 helium Inorganic materials 0.000 claims description 28
- 239000001301 oxygen Substances 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 28
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 27
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 27
- 238000012544 monitoring process Methods 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 230000003245 working effect Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000035479 physiological effects, processes and functions Effects 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims description 2
- 230000007257 malfunction Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 description 7
- 230000001960 triggered effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H02J3/005—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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Abstract
The invention discloses a kind of power supply timing control circuit, each device of power supply is needed in network source and magnetic resonance imaging system for connecting, including the first power supply main road, the second power supply main road and control loop, magnetic resonance imaging system and its sequential control method with power supply timing control circuit are also disclosed.The one-touch automatic start of the present invention and the technical solution for closing multiple equipment operation operation, employ relay―contact control technology, it can not only meet that the boot sequence between each equipment and time delay require, avoid causing equipment to impact, equipment or equipment cisco unity malfunction are damaged, and operating personnel's startup and shutdown time can also be saved；Simply, cost is low, and reliability is high.
Description
Technical field
The present invention relates to technical field of medical equipment, more particularly to a kind of power supply timing control circuit and there is power supply timing
The magnetic resonance imaging system and its power supply timing control method of control circuit.
Background technology
Magnetic resonance imaging is also referred to as Magnetic resonance imaging, is with cryogenic technique, superconductor technology, magnet technology, electronic technology
Development with computer technology and a kind of advanced modern medicine imaging technique produced, obtain in large and medium-sized hospital
It is widely applied.
Magnetic resonance imaging is exactly to be placed in human body in special magnetic field, with hydrogen atom in radio frequency pulse excitation human body
Core, causes hydrogen nuclei to resonate and absorbs energy, and hydrogen nuclei sends electric signal by specific frequency after radio-frequency pulse is stopped,
And discharge the energy of absorption, included by external receiving device, handled through computer and obtain image.
Magnetic resonance imaging system is by main magnet, gradient power amplifier, radio-frequency power amplifier, spectrometer apparatus, gradient line
Circle, transmitting coil, receiving coil, computer and other ancillary equipments composition.Ancillary equipment mainly includes examination couch and positioning is logical
Wind apparatus, physiological signal monitoring device, communicator, video monitoring devices, helium gas cooling device and water-cooling apparatus, image transmitting are deposited
The composition such as storage and film processing device.In addition it is also necessary to have safety monitoring facility and emergency braking device, as metal detector,
Oxygen monitoring device and emergent air exhauster, the magnet emergency braking device and device that shuts off power in emergency etc..
Main magnet is the key equipment of magnetic resonance imaging system, is mainly used to produce main field.Main field strength is higher, figure
The signal-to-noise ratio of picture is higher.Main magnet can be divided into four kinds of permanent-magnet type, normal conductivity type, mixed type and superconduction type, wherein superconducting main magnet
Higher main field can be produced, magnetic field's regularity and stability are also superior to other types of main magnet.
Gradient power amplifier, for driving the gradient coil in three directions, provides gradient magnetic for system, is superimposed upon master
On magnetic field, resonance signal is spatially encoded, is implemented as the space orientation of voxel.
Radio-frequency power amplifier, exports satisfactory radio-frequency pulse, and to drive radio-frequency coil, the radiofrequency field of generation is vertical
In main field, it is implemented as Hydrogen Proton in voxel and absorbs the electromagnetic wave identical with main field frequency, electromagnetic induction phenomenon occurs.
Spectrometer apparatus, according to the imaging sequence requirement of magnetic resonance imaging system, exports different signals and is put to gradient power
Big device and radio-frequency power amplifier, make two power amplifiers export powerful gradient pulse and radio-frequency pulse and are total to so that magnetic occurs
Shake phenomenon.After radio-frequency pulse cancels, the echo resonance signal for being loaded with space encoding is induced in receiving coil, which passes through
After preamplifier amplification, spectrometer apparatus is inputed to.
Computer, is managed patient information by hardware and software, the scanning of image management, image procossing, scanner uni
Control, system maintenance, network management etc..
Examination couch and positioner, examination couch carry patient into magnet chamber, the portion to be scanned of positioner positioning patient
Position.
The physiological movement such as physiological signal monitoring device, bounce and respiratory movement due to heart can be led in magnetic resonance image
Motion artifacts are caused, it is necessary to carry out physiology monitor.
Communicator, for the doctor in operating room and patient's exchange and conmmunication in scanning room；Video monitoring devices, are used
In operating room doctor observation scanning room patient dynamic.
Oxygen monitoring device and emergent air exhauster, in scanning room, a large amount of helium are produced after the volatilization of magnet refrigerant
During so that scanning indoor oxygen concentration and be down to the least concentration (being not less than 18%) that needed by human body wants, oxygen monitoring device energy acousto-optic
Alarm and can automatic start meet an urgent need air exhauster exhaust, so that it is guaranteed that patient safety.
Magnet emergency braking device, be typically mounted on the wall near superconducting magnet and operation console on, can be in urgent feelings
Magnetic field is set to be reduced to zero rapidly under condition, to ensure that the life of superconducting magnet or people avoids being threatened be subject to magnetic field.
Shut off power in emergency device, is typically mounted on operation console, which is Safety Extra Low Voltage, in operator, to suffer from
Person or equipment safety can cut off the power rapidly when being on the hazard.
Corollary equipment when main magnet is superconducting magnet also has helium compressor and magnet monitoring unit.In order to reduce superconducting magnetic
Liquid helium evaporation in body, the also supporting cold head of usual superconducting magnet and the helium compressor using water cooling mode, reduce liquid helium consumption
Amount, reduces the operating cost of hospital.
At present, the operating personnel of magnetic resonance imaging system are the behaviour that these equipment are manually booted and closed respectively
Make, the boot sequence between each equipment there are logical requirements, if operating personnel do not start shooting by required order, can cause
Equipment is impacted, and causes equipment damage or equipment cisco unity malfunction, while can waste the time of operating personnel again.
The content of the invention
In view of this, the present invention proposes a kind of power supply timing control circuit and the magnetic with power supply timing control circuit
Resonance imaging system and its power supply timing control method are to solve above-mentioned technical problem.
In order to achieve the above object, the technical solution adopted in the present invention is：
First aspect according to embodiments of the present invention, it is proposed that a kind of power supply timing control circuit, for connecting network source
It is described with each device that power supply is needed in magnetic resonance imaging system, including the first power supply main road, the second power supply main road and control loop
First power supply main road be used for connect needed in network source and magnetic resonance imaging system whole day power device, the first current supply circuit bag
A.C. contactor KM1 is included, the first end of A.C. contactor KM1 main contacts connects network source, ac contactor by breaker unit
The second end of device KM1 main contacts is the first output terminal；The second power supply main road includes A.C. contactor KM2, ac contactor
The first end of device KM2 main contacts connects network source by breaker unit, and the second end of A.C. contactor KM2 main contacts is second
Output terminal；The control loop includes button switch SA1, button switch SA2, intermediate relay KA1 and DC converter DC,
The input terminal of DC converter DC, the first end of button switch SA1, the first end of intermediate relay KA1 contacts pass through breaker
Unit connects network source, the coil of the second end connection A.C. contactor KM1 of button switch SA1, the both ends point of button switch SA2
Not Lian Jie the output terminal of DC converter DC and the first end of intermediate relay KA1 coils, the second of intermediate relay KA1 coils
End is used for the device that shuts off power in emergency for connecting magnetic resonance imaging system, and the second end connection exchange of the contact of intermediate relay KA1 connects
The first end of tentaculum KM1 auxiliary contact, the coil of the second end connection A.C. contactor KM2 of A.C. contactor KM1 auxiliary contact.
Power supply timing control circuit of the present invention uses two key switches and relay, contactor, by magnetic resonance imaging system
Needing whole day power supply part and different current supply circuits being respectively connected to without whole day power supply part for system, realizes power supply timing control.
Power supply timing control circuit of the present invention further improvement lies in that, further include at least one sequential power supply branch, institute
The each sequential power supply branch stated includes an A.C. contactor, and the A.C. contactor in N sequential power supply branch is denoted as N and hands over
Contactor is flowed, wherein N is the integer more than or equal to 1；The first end of N A.C. contactor main contacts and the first of auxiliary contact
End connects network source by breaker unit respectively, and the second end of N A.C. contactor main contacts is N+2 output terminals；As N etc.
When 1, A.C. contactor KM2 auxiliary contact in the coil of N A.C. contactor main contacts and the first timing control current supply circuit
Second end connection；When N is more than 1, the coil of N A.C. contactor main contacts is exchanged with the N-1 sequential power supply branch
The second end connection of the auxiliary contact of contactor.
Preferably, the quantity of the sequential power supply branch is three to one kind of power supply timing control circuit of the present invention.When multiple
The setting of sequence power supply branch, is that all classified again without whole day power supply part is accessed different sequential power supply branch
Road, to realize that multi-level sequential is powered.
Power supply timing control circuit of the present invention further improvement lies in that, each sequential power supply branch further include one
A time relay, N sequential power supply branch in the time relay be denoted as the N time relays, N time relays contact
First end connection N A.C. contactors coil；When N is equal to 1, the coil and ac contactor of the N time relays
The coils from parallel connection of coils of device KM2, the second end of the second end connection A.C. contactor KM2 auxiliary contact of N time relays contact；When
When N is more than 1, the coil of the N time relays and the coils from parallel connection of coils of N-1 A.C. contactors, N time relays contact
Second end connection N-1 A.C. contactor KM2 auxiliary contact second end.The time relay is used to be delayed, and further reduces
The influence of the rush of current of multiple equipment start and stop at the same time.
Second aspect according to embodiments of the present invention, it is proposed that a kind of magnetic resonance imaging system, including main magnet, examination couch
And positioning ventilation unit, helium compressor, magnet monitoring unit, oxygen monitoring device, computer, communicator, video monitoring devices,
Gradient power amplifier, radio-frequency power amplifier, spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear, shut off power in emergency dress
Put, magnet emergency braking device, further include the power supply timing control circuit as described above being connected with network source, power supply timing control
Circuit processed has the first output terminal and the second output terminal, and the first output terminal connection of power supply timing control circuit needs whole day power supply
Part, the second output terminal of power supply timing control circuit are connected without whole day power supply part, the second end of intermediate relay KA1 coils
Connect the device that shuts off power in emergency of magnetic resonance imaging system.
Preferably, described need whole day power supply part to include oxygen monitoring device；Or, described whole day power supply part is needed to include helium
Compressor, magnet monitoring unit, oxygen monitoring device.Oxygen monitoring device is used to operate indoor oxygen concentration detection, it is necessary to whole day
Power supply；When main magnet is superconducting magnet, helium compressor, magnet monitoring unit exist as the optional equipment of superconducting magnet, need
Whole day is wanted to power.
Preferably, the component without whole day power supply includes computer, communicator, video monitoring devices, gradient
Power amplifier, radio-frequency power amplifier, spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear.These equipment need not
Whole day is powered, therefore can be started later.
Magnetic resonance imaging system of the present invention further improvement lies in that, when the power supply timing control circuit has three
Sequence power branch, i.e., with the 3rd output terminal, the 4th output terminal and five output terminals when, the second of power supply timing control circuit is defeated
Outlet connection computer, communicator, video monitoring devices, the 3rd output terminal connection gradient power of power supply timing control circuit
Amplifier, the 4th output terminal connection radio-frequency power amplifier of power supply timing control circuit, the 5th of power supply timing control circuit the
Output terminal connection spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear.These equipment are divided into three classes as needed, according to
Sequential realizes control.
The third aspect according to embodiments of the present invention, it is proposed that a kind of sequential control method of magnetic resonance imaging system, bag
Include following steps：
Startup needs whole day power supply part：Button switch SA1 is pressed, the first power supply main road conducting, needs whole day power supply part to open
It is dynamic；
Start without whole day power supply part：Press button switch SA2, whether detection device work of shutting off power in emergency is normal, if
Normally, the second power supply main road conducting in the case of the first power supply main road conducting, starts without whole day power supply part；
Close down without whole day power supply part：In the state of working without whole day power supply part, SA2 buttons are pressed, without
Whole day power supply part is by lower electricity；
Close down all components：All component workings or only need whole day power supply part work in the state of, by lower button
SA1 is switched, electricity under the component of work.
Preferably, described need whole day power supply part to include oxygen monitoring device；Or, described whole day power supply part is needed to include helium
Compressor, magnet monitoring unit, oxygen monitoring device.
Preferably, the component without whole day power supply includes computer, communicator, video monitoring devices, gradient
Power amplifier, radio-frequency power amplifier, spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear.
Magnetic resonance imaging system of the present invention sequential control method further improvement lies in that, when the power supply timing control
Circuit processed have the first sequential power supply branch, the second sequential power supply branch and the 3rd sequential power supply branch, i.e., with the 3rd output terminal,
When the 4th output terminal and five output terminals, the step starts miscellaneous part and is specially：
Start computer, communicator, video monitoring devices：The power supply branch conducting of first sequential, computer, call dress
Put, video monitoring devices power on, computer automatic start simultaneously loads software；
Start gradient power amplifier：The power supply branch conducting of first sequential, gradient power amplifier power on；
Start radio-frequency power amplifier：The power supply branch conducting of second sequential, radio-frequency power amplifier power on；
Start spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear：The power supply branch conducting of 3rd sequential, spectrometer dress
Put, physiological signal monitoring device, examination couch electric control gear power on.
Preferably, when starting gradient power amplifier, the power supply branch conducting of the first sequential is set as turn on delay.
Preferably, when starting radio-frequency power amplifier, the power supply branch conducting of the second sequential is set as turn on delay.
Preferably, when starting spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear, the 3rd sequential power supply branch
Conducting is set as turn on delay.
As further preferably, the Delayed conducting time is set as 3-10s.The Delayed conducting time is freely set, excellent
Elect 5s as.
Compared with prior art, the technical side of one-touch automatic start of the invention and closing multiple equipment operation operation
Case, employs relay control technology, can not only meet that the boot sequence between each equipment and time delay require, keep away
Exempt to cause equipment to impact, damage equipment or equipment cisco unity malfunction, and operating personnel's startup and shutdown time can also be saved；
Simply, cost is low, and reliability is high.
Brief description of the drawings
Fig. 1 is a kind of circuit structure block diagram of power supply timing circuit of the present invention；
Fig. 2 is a kind of overall structure diagram of magnetic resonance imaging system of the present invention.
In figure, 10- main magnets, 11- gradient coils, 12- radio-frequency coils, 13- receiving coils, 14- examination couches and positioning are logical
Wind apparatus, 20- helium compressors, 21- magnet monitoring units, 22- gradient power amplifiers, 23- radio-frequency power amplifiers, 24- spectrums
Instrument device, 25- physiological signal monitoring devices, 26- examination couch electric control gears, 27- magnet emergency braking devices, 30- network sources, 31- are supplied
Electric sequential control circuit, 40- oxygen monitoring devices, 41- communicators, 42- video monitoring devices, 43- shut off power in emergency device, 50-
Computer, the power supply main roads of 61- first, the power supply main roads of 62- second, the first sequential of 71- power supply branch, the second sequential of 72- power supply branch
Road, the 3rd sequential of 73- power supply branch.
Embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that those of ordinary skill in the art are made according to these embodiments, method or functionally
Conversion is all contained in protection scope of the present invention.
It is only merely for the purpose of description specific embodiment in terminology used in the present invention, and is not intended to be limiting the present invention.
It is also intended in " one kind " of singulative of the invention and used in the attached claims, " described " and "the" including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wraps
Containing the associated list items purpose of one or more, any or all may be combined.
It will be appreciated that though various structures, but these structures may be described using term first, second etc. in the present invention
It should not necessarily be limited by these terms.These terms are only used for same type of structure being distinguished from each other out.For example, the present invention is not being departed from
In the case of scope, the first output terminal can also be referred to as the second output terminal, and similarly, the second output terminal can also be referred to as
One output terminal, depending on linguistic context.
As shown in Figure 1, a kind of power supply timing control circuit 31, needs to supply for connecting in network source and magnetic resonance imaging system
Each device of electricity, including the first power supply main road 61, second power supply main road 62 and control loop.
Specifically, described first power supply main road 61 includes A.C. contactor KM1, and the of A.C. contactor KM1 main contacts
One end connects network source 30 by breaker unit, and the second end of A.C. contactor KM1 main contacts is the first output terminal.First is defeated
Outlet can be used for connecting the device for needing whole day to power in magnetic resonance imaging system, such as oxygen monitoring device 40, when main magnet is super
During magnetizer, there are helium compressor 20, magnet monitoring unit 21.
The second power supply main road includes A.C. contactor KM2, and the first end of A.C. contactor KM2 main contacts, which passes through, breaks
Road device unit connection network source, the second end of A.C. contactor KM2 main contacts is the second output terminal.Second output terminal can be used for
The device without whole day power supply in magnetic resonance imaging system is connected, such as except helium compressor 20, magnet monitoring unit 21 and oxygen prison
Survey the equipment beyond device 40.
The control loop includes button switch SA1, button switch SA2, intermediate relay KA1 and DC converter
DC, the input terminal of DC converter DC, the first end of button switch SA1, the first end of intermediate relay KA1 contacts pass through open circuit
Device unit connects network source, the coil of the second end connection A.C. contactor KM1 of button switch SA1, the both ends of button switch SA2
Connect the output terminal of DC converter DC and the first end of intermediate relay KA1 coils respectively, the of intermediate relay KA1 coils
Two ends are used for the device that shuts off power in emergency for connecting magnetic resonance imaging system, the second end connection exchange of the contact of intermediate relay KA1
The first end of contactor KM1 auxiliary contact, the line of the second end connection A.C. contactor KM2 of A.C. contactor KM1 auxiliary contact
Circle.Control loop is used for realization by two button switches and the power supply timing of each current supply circuit is controlled.
In the alternative embodiment of the present invention, the power supply timing control circuit further includes at least one sequential power supply branch
Road, each sequential power supply branch include an A.C. contactor, and the A.C. contactor that N sequential is powered in branch is denoted as
N A.C. contactors, wherein N are the integer more than or equal to 1；The first end and auxiliary contact of N A.C. contactor main contacts
First end network source is connected by breaker unit respectively, the second end of N A.C. contactor main contacts is N+2 outputs
End；When N is equal to 1, A.C. contactor KM2 in the coil of N A.C. contactor main contacts and the first timing control current supply circuit
The second end connection of auxiliary contact；When N is more than 1, the coil of N A.C. contactor main contacts and the N-1 sequential power supply branch
The second end connection of the auxiliary contact of A.C. contactor in road.
Further, in the alternative embodiment of the present invention, when each sequential power supply branch further includes one
Between relay, the time relay in N sequential power supply branch is denoted as the N time relays, the of N time relays contact
One end connects the coil of N A.C. contactors；When N is equal to 1, coil and the A.C. contactor KM2 of the N time relays
Coils from parallel connection of coils, N time relays contact second end connection A.C. contactor KM2 auxiliary contact second end；When N is more than
When 1, the coil of the N time relays and the coils from parallel connection of coils of N-1 A.C. contactors, the of N time relays contact
Two ends connect the second end of N-1 A.C. contactor KM2 auxiliary contact.
As shown in Figure 1, the power supply timing control circuit include the first sequential power supply branch 71 and it is corresponding first when
Between relay KT1, the second sequential power supply branch 72 and corresponding second time relay KT2, the 3rd sequential power supply branch 73
And corresponding 3rd time relay KT3.
First sequential power supply branch 71 includes the first A.C. contactor KM3, and the first of the first A.C. contactor KM3 main contacts
End connects network source 30 by breaker unit respectively with the first end of auxiliary contact, and the coil of first time relay is with exchanging
The coils from parallel connection of coils of contactor KM2, first time relay KT1 contact first end connect the first A.C. contactor KM3 coil,
First time relay KT1 contact second end connection A.C. contactor KM2 auxiliary contact second end, the first A.C. contactor
The second end of KM3 main contacts is the 3rd output terminal.
Second sequential power supply branch 72 includes the second A.C. contactor KM4, and the first of the second A.C. contactor KM4 main contacts
End connects network source 30, the coil of second time relay and first by breaker unit respectively with the first end of auxiliary contact
The coils from parallel connection of coils of A.C. contactor KM3, the first end of the second time relay KT2 contacts connect the second A.C. contactor KM4's
Coil, the second end of the second end connection A.C. contactor KM3 auxiliary contact of the second time relay KT2 contacts, the second exchange
The second end of contactor KM4 main contacts is the 4th output terminal.
3rd sequential power supply branch 73 includes the 3rd A.C. contactor KM5, and the first of the 3rd A.C. contactor KM5 main contacts
End connects network source 30, the coil of first time relay and second by breaker unit respectively with the first end of auxiliary contact
The coils from parallel connection of coils of A.C. contactor KM4, the first end of the 3rd time relay KT3 contacts connect the 3rd A.C. contactor KM5's
Coil, the second end of the second end connection A.C. contactor KM4 auxiliary contact of the 3rd time relay KT3 contacts, the 3rd exchange
The second end of contactor KM5 main contacts is the 3rd output terminal.
Breaker unit can be whole battery main switch, or set up the open circuit in each power supply main road or branch separately
Device.As shown in Figure 1, the first end of A.C. contactor KM1 main contacts passes through circuit breaker Q F1 connections network source 30, A.C. contactor
By circuit breaker Q F2 connections network source 30, the first end of A.C. contactor KM3 main contacts passes through breaks the first end of KM2 main contacts
Road device QF3 connections network source 30, the first end of A.C. contactor KM4 main contacts pass through circuit breaker Q F4 connections network source 30, exchange
The first end of contactor KM5 main contacts by circuit breaker Q F5 connections network source 30, open by input terminal, the button of DC converter DC
The pass first end of SA1, the first end of intermediate relay KA1 contacts, the first end of A.C. contactor KM2 auxiliary contact, exchange connect
The first end of tentaculum KM3 auxiliary contact, the first end of A.C. contactor KM4 auxiliary contact net electricity by circuit breaker Q F6 connections
Source 30.
Certainly, sequential power supply branch quantity can according to magnetic resonance system it is used in everyday need voluntarily to make choice set
Put, quantity can be 0, or the integer more than 0.
As shown in Fig. 2, a kind of magnetic resonance imaging system, including：Examination couch and positioning ventilation unit 14；Main magnet 10, ladder
Spend coil 11, radio-frequency coil 12, receiving coil 13；The power supply timing control circuit 31 being connected with network source 30；Respectively with power supply
Helium compressor 20, magnet monitoring unit 21, oxygen monitoring device 40, computer 50, the communicator of the connection of sequential control circuit 31
41st, video monitoring devices 42, gradient power amplifier 22, radio-frequency power amplifier 23, spectrometer apparatus 24, physiological signal monitoring device
25th, examination couch electric control gear 26, shut off power in emergency device 43；Magnet emergency braking device 27.
Wherein, main magnet 10 can be superconducting magnet, and helium compressor 20, magnet monitoring unit 21 connect with main magnet 10 respectively
Connect, magnet emergency braking device 27 is connected with magnet monitoring unit 21；Gradient power amplifier 22 connects gradient coil 11；Radio frequency
Power amplifier 23 connects radio-frequency coil 12；Spectrometer apparatus 24 is put with receiving coil 13, gradient power amplifier 22, radio-frequency power
Big device 23, physiological signal monitoring device 25, examination couch electric control gear 26, computer 50 connect；Examination couch electric control gear 26 and examination couch
And positioning ventilation unit 14 connects.The structure of power supply timing control circuit 31 is not added with repeating herein.
These components of magnetic resonance imaging system can be divided into according to power supply needs needs whole day power supply part and without whole day
Power supply part.It is described to need whole day power supply part to include helium compressor 20, magnet monitoring unit 21, oxygen monitoring device 40.Institute
Computer 50, communicator 41, video monitoring devices 42, gradient power amplifier can be included without the component of whole day power supply by stating
22nd, radio-frequency power amplifier 23, spectrometer apparatus 24, physiological signal monitoring device 25, examination couch electric control gear 26.Certainly, if main magnet
10 be not superconducting magnet, then needs whole day power supply part not include helium compressor 20, magnet monitoring unit 21.
In the alternative embodiment of the present invention, power supply timing control circuit 31 only has the first output terminal and the second output terminal
When, the first output terminal connection helium compressor 20, magnet monitoring unit 21, oxygen monitoring device 40, power supply timing control circuit 31
Second output terminal connection computer 50, communicator 41, video monitoring devices 42, gradient power amplifier 22, radio-frequency power are put
Big device 23, spectrometer apparatus 24, physiological signal monitoring device 25, examination couch electric control gear 26, the second end of intermediate relay KA1 coils connect
Connect the device 43 that shuts off power in emergency.
Further, as shown in Figure 1, in the another alternative embodiment of the present invention, power supply timing control circuit 31 has
First output terminal, the second output terminal, the 3rd output terminal, the 4th output terminal and the 5th output terminal.Power supply timing control circuit 31
First output terminal connection helium compressor 20, magnet monitoring unit 21, oxygen monitoring device 40, the second output terminal connection computer 50,
Communicator 41, video monitoring devices 42, the 3rd output terminal connection gradient power amplifier 22, the 4th output terminal connection radio frequency work(
Rate amplifier 23, the 5th output terminal connection spectrometer apparatus 24, physiological signal monitoring device 25, examination couch electric control gear 26.
Certainly, the exemplary only explanation of above-described embodiment, the present invention in be not limited to this, sequential power supply branch quantity with
The different situation of above example is equally applicable in the present invention.
At the another aspect of the embodiment of the present invention, it is also proposed that a kind of sequential control method of magnetic resonance imaging system, bag
Include following steps：
Startup needs whole day power supply part：Button switch SA1 is pressed, the first power supply main road conducting, needs whole day power supply part to open
It is dynamic；
Start without whole day power supply part：Press button switch SA2, whether detection device work of shutting off power in emergency is normal, if
Normally, the second power supply main road conducting in the case of the first power supply main road conducting, starts without whole day power supply part；
Close down without whole day power supply part：In the state of working without whole day power supply part, SA2 buttons are pressed, without
Whole day power supply part is by lower electricity；
Close down all components：All component workings or only need whole day power supply part work in the state of, by lower button
SA1 is switched, electricity under the component of work.
As it was previously stated, described need whole day power supply part to include helium compressor 20, magnet monitoring unit 21, oxygen monitoring
Device 40.The component without whole day power supply can include computer 50, communicator 41, video monitoring devices 42, gradient work(
Rate amplifier 22, radio-frequency power amplifier 23, spectrometer apparatus 24, physiological signal monitoring device 25, examination couch electric control gear 26.
Further, when the power supply timing control circuit 31 has the first sequential power supply branch 71, the power supply of the second sequential
72 and the 3rd sequential of branch power branch 73, i.e., with the 3rd output terminal, the 4th output terminal and five output terminals when, the step
Rapid start is followed successively by without whole day power supply part：
Start computer 50, communicator 41, video monitoring devices 42：The power supply branch conducting of first sequential, computer 50,
Communicator 41, video monitoring devices 42 power on, and computer automatic start simultaneously loads software；
Start gradient power amplifier 22：The power supply branch conducting of first sequential, gradient power amplifier 22 power on；
Start radio-frequency power amplifier 23：The power supply branch conducting of second sequential, radio-frequency power amplifier 23 power on；
Start spectrometer apparatus 24, physiological signal monitoring device 25, examination couch electric control gear 26：The power supply branch conducting of 3rd sequential,
Spectrometer apparatus 24, physiological signal monitoring device 25, examination couch electric control gear 26 power on.
Wherein, start gradient power amplifier 22, radio-frequency power amplifier 23, spectrometer apparatus 24, physiological signal monitoring device 25,
During examination couch electric control gear 26, turn on delay can be set as with passage time relay.Preferably, during the Delayed conducting
Between can be set as 3-10s, for example be set as 5s.
Specifically, operating personnel when in use, press button switch SA1, you can start helium compressor 20, magnet monitoring list
Member 21 and oxygen monitoring device 40.Not in special circumstances, 40 whole day of helium compressor 20, magnet monitoring unit 21 and oxygen monitoring device
24 work when small, work within annual 365 days.
Then, after operating personnel press button switch SA2, power supply timing control circuit 31 detects the device 43 that shuts off power in emergency
In the case of working properly, intermediate relay KA1 coils are triggered, turn on the contact of intermediate relay KA1, if power supply timing
Control circuit 31 detects helium compressor 20, magnet monitoring unit 21 and oxygen monitoring device 40 and has already powered on, it will triggering
A.C. contactor KM2 coils are powered, then computer 50, communicator 41, video monitoring devices 42 must be electric and start normal work
Make, 50 automatic start of computer simultaneously loads software.
While triggering the energization of A.C. contactor KM2 coils, the auxiliary contact conducting of A.C. contactor KM2 and time relay
The coil of device KT1 is triggered energization.The contact of time relay KT1 turns on after delay, it will the first A.C. contactor of triggering
KM3 coils are powered, and turn on the main contacts of the first A.C. contactor KM3, then gradient power amplifier 22 is obtained electric and can started just
Often work.The Delayed conducting time of time relay KT1 can be set as 5s.
While triggering the energization of the first A.C. contactor KM3 coils, the auxiliary contact conducting of A.C. contactor KM3 and time
The coil of relay KT2 is triggered energization.The contact of time relay KT2 turns on after delay, it will the exchange of triggering second connects
Tentaculum KM4 coils are powered, and turn on the main contacts of the second A.C. contactor KM4, then radio-frequency power amplifier 23 is obtained electric and can opened
Begin normal work.The Delayed conducting time of time relay KT2 can be set as 5s.
While triggering the energization of the second A.C. contactor KM4 coils, the auxiliary contact conducting of A.C. contactor KM4 and time
The coil of relay KT3 is triggered energization.The contact of time relay KT3 turns on after delay, it will the exchange of triggering second connects
Tentaculum KM5 coils be powered, turn on the main contacts of the second A.C. contactor KM5, then spectrometer apparatus 24, physiological signal monitoring device 25,
Examination couch electric control gear 26 obtains electric and can start to work normally.The Delayed conducting time of time relay KT3 can be set as 5s.
Operator by pressing button switch SA2 again, except helium compressor 20, magnet monitoring unit 21 and oxygen monitoring
Outside device 40, miscellaneous equipment is by lower electricity.Operator by pressing button switch SA1 again, then all devices are by lower electricity.
In conclusion operator passes through button switch SA1 and button switch SA2, you can it is more to complete one-touch automatic start
The operation operation of a equipment, and the time delay that can be needed according to pre-specified power-up sequence and each device power-up
Equipment is opened, not only avoid conflict during startup between equipment, equipment is damaged or causes equipment cisco unity malfunction, while
Save the stand-by period of operating personnel's starting device；Operator by pressing button switch SA2 again, you can completes one-touch
The operation operation of multiple equipment is closed, saves the stand-by period that operating personnel close multiple equipment respectively.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.This application is intended to cover the present invention any variations, uses, or adaptations, these modifications, purposes or
Person's adaptive change follows the general principle of the present invention and including undocumented common knowledge in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by the application
Claim point out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by appended claim.
Claims (15)
1. a kind of power supply timing control circuit, each device of power supply is needed for connecting in network source and magnetic resonance imaging system, its
It is characterized in that, including the first power supply main road, the second power supply main road and control loop,
The first power supply main road is used to connect the device for needing whole day to power in network source and magnetic resonance imaging system, and first supplies
Electric main road includes A.C. contactor KM1, and the first end of A.C. contactor KM1 main contacts connects network source by breaker unit,
The second end of A.C. contactor KM1 main contacts is the first output terminal；
The second power supply main road includes A.C. contactor KM2, and the first end of A.C. contactor KM2 main contacts passes through breaker
Unit connects network source, and the second end of A.C. contactor KM2 main contacts is the second output terminal；
The control loop includes button switch SA1, button switch SA2, intermediate relay KA1 and DC converter DC, directly
The input terminal of current converter DC, the first end of button switch SA1, the first end of intermediate relay KA1 contacts pass through breaker list
Member connection network source, the coil of the second end connection A.C. contactor KM1 of button switch SA1, the both ends difference of button switch SA2
Connect the output terminal of DC converter DC and the first end of intermediate relay KA1 coils, the second end of intermediate relay KA1 coils
For connecting the device that shuts off power in emergency of magnetic resonance imaging system, the second end connection ac contactor of the contact of intermediate relay KA1
The first end of device KM1 auxiliary contact, the coil of the second end connection A.C. contactor KM2 of A.C. contactor KM1 auxiliary contact.
2. power supply timing control circuit according to claim 1, it is characterised in that further include at least one sequential power supply branch
Road, each sequential power supply branch include an A.C. contactor, and the A.C. contactor that N sequential is powered in branch is denoted as
N A.C. contactors, wherein N are the integer more than or equal to 1；
The first end of N A.C. contactor main contacts connects net electricity by breaker unit respectively with the first end of auxiliary contact
Source, the second end of N A.C. contactor main contacts is N+2 output terminals；
When N is equal to 1, A.C. contactor KM2 in the coil of N A.C. contactor main contacts and the first timing control current supply circuit
The second end connection of auxiliary contact；
When N is more than 1, the coil of N A.C. contactor main contacts with the N-1 sequential power supply branch A.C. contactor it is auxiliary
The second end of contact is helped to connect.
3. power supply timing control circuit according to claim 2, it is characterised in that the control loop further includes at least
One and the sequential power supply corresponding time relay of branch, are denoted as with the N sequential power supply corresponding time relay of branch
The N time relays, the coil of the first end connection N A.C. contactors of N time relays contact；
When N is equal to 1, the coil of the N time relays and the coils from parallel connection of coils of A.C. contactor KM2, the N time relays
The second end of the second end connection A.C. contactor KM2 auxiliary contact of contact；
When N is more than 1, the coil of the N time relays and the coils from parallel connection of coils of N-1 A.C. contactors, N time relays
The second end of the second end connection N-1 A.C. contactor KM2 auxiliary contact of device contact.
4. the power supply timing control circuit according to Claims 2 or 3, it is characterised in that the number of the sequential power supply branch
Measure as three.
5. a kind of magnetic resonance imaging system, including：
Main magnet, examination couch and positioning ventilation unit, oxygen monitoring device, computer, communicator, video monitoring devices, gradient
Power amplifier, radio-frequency power amplifier, spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear, shut off power in emergency device,
Magnet emergency braking device,
It is characterized in that, further include the power supply timing control circuit as claimed in claim 1 being connected with network source, power supply timing
Control circuit has the first output terminal and the second output terminal,
The first output terminal connection of power supply timing control circuit needs whole day power supply part,
Second output terminal of power supply timing control circuit is connected without whole day power supply part,
The device that shuts off power in emergency of the second end connection magnetic resonance imaging system of intermediate relay KA1 coils.
6. magnetic resonance imaging system according to claim 5, it is characterised in that described to need whole day power supply part to include oxygen
Monitor；It is described to need whole day power supply part to include helium pressure or magnetic resonance imaging system further includes helium compressor, magnet monitoring unit
Contracting machine, magnet monitoring unit, oxygen monitoring device.
7. magnetic resonance imaging system according to claim 5, it is characterised in that the component without whole day power supply includes
Computer, communicator, video monitoring devices, gradient power amplifier, radio-frequency power amplifier, spectrometer apparatus, physiology monitor
Device, examination couch electric control gear.
8. magnetic resonance imaging system according to claim 7, it is characterised in that when the power supply timing control circuit has
Three sequential are powered branches, i.e., with the 3rd output terminal, the 4th output terminal and five output terminals when,
The second output terminal connection computer, communicator, the video monitoring devices of the power supply timing control circuit,
The 3rd output terminal connection gradient power amplifier of the power supply timing control circuit,
The 4th output terminal connection radio-frequency power amplifier of the power supply timing control circuit,
The 5th output terminal connection spectrometer apparatus, physiological signal monitoring device, the examination couch electric control gear of the power supply timing control circuit.
A kind of 9. power supply timing control method of magnetic resonance imaging system according to claim 5, it is characterised in that including
Following steps：
Startup needs whole day power supply part：Button switch SA1 is pressed, the first power supply main road conducting, needs whole day power supply part to start；
Start without whole day power supply part：Press button switch SA2, whether detection device work of shutting off power in emergency is normal, if normally,
The second power supply main road conducting, starts without whole day power supply part in the case of first power supply main road conducting；
Close down without whole day power supply part：In the state of working without whole day power supply part, SA2 buttons are pressed, without whole day
Power supply part is by lower electricity；
Close down all components：All component workings or only need whole day power supply part work in the state of, press button switch
SA1, electricity under the component of work.
10. the power supply timing control method of magnetic resonance imaging system according to claim 9, it is characterised in that the need
Whole day power supply part includes oxygen monitoring device；Or magnetic resonance imaging system further includes helium compressor, magnet monitoring unit, the need
Whole day power supply part includes helium compressor, magnet monitoring unit, oxygen monitoring device.
11. the power supply timing control method of magnetic resonance imaging system according to claim 9, it is characterised in that the nothing
The component that whole day is powered is needed to include computer, communicator, video monitoring devices, gradient power amplifier, radio-frequency power amplification
Device, spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear.
12. the power supply timing control method of magnetic resonance imaging system according to claim 11, it is characterised in that when described
Power supply timing control circuit have the first sequential power supply branch, the second sequential power supply branch and the 3rd sequential power supply branch, that is, have
When having the 3rd output terminal, the 4th output terminal and five output terminals, the step starts miscellaneous part and is specially：
Start computer, communicator, video monitoring devices：The power supply branch conducting of first sequential, computer, communicator, regard
Frequency monitoring arrangement powers on, and computer automatic start simultaneously loads software；
Start gradient power amplifier：The power supply branch conducting of first sequential, gradient power amplifier power on；
Start radio-frequency power amplifier：The power supply branch conducting of second sequential, radio-frequency power amplifier power on；
Start spectrometer apparatus, physiological signal monitoring device, examination couch electric control gear：The power supply branch conducting of 3rd sequential, spectrometer apparatus, life
Reason monitoring device, examination couch electric control gear power on.
13. the power supply timing control method of magnetic resonance imaging system according to claim 12, it is characterised in that start ladder
When spending power amplifier, the power supply branch conducting of the first sequential is set as turn on delay.
14. the power supply timing control method of magnetic resonance imaging system according to claim 12, it is characterised in that startup is penetrated
During frequency power amplifier, the power supply branch conducting of the second sequential is set as turn on delay.
15. the power supply timing control method of magnetic resonance imaging system according to claim 12, it is characterised in that start spectrum
When instrument device, physiological signal monitoring device, examination couch electric control gear, the power supply branch conducting of the 3rd sequential is set as turn on delay.
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| CN114296412A (en) * | 2021-12-23 | 2022-04-08 | 中铭谷智能机器人(广东)有限公司 | Starting control system and method for multiple devices |
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