CN110536536A - Cyclotron low level system reboot moves automatic exercise device and control method - Google Patents
Cyclotron low level system reboot moves automatic exercise device and control method Download PDFInfo
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- CN110536536A CN110536536A CN201910828214.0A CN201910828214A CN110536536A CN 110536536 A CN110536536 A CN 110536536A CN 201910828214 A CN201910828214 A CN 201910828214A CN 110536536 A CN110536536 A CN 110536536A
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/005—Cyclotrons
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
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Abstract
The invention discloses a kind of cyclotron low level system reboots to move automatic exercise device, including cavity sampled signal unit, pick-up unit, ADC sampling unit, FFT transform and zeroing data and data processing unit, comparing unit, control output signal unit, cavity Arc detection unit, cavity sampled signal processing unit, motor control unit；The automatic exercise device obtains sampled signal from accelerator cavity and is handled, then will output signal to transmitter and motor controller；Further include a kind of intelligent control method:Set the threshold parameter under different mode；Into the automatic continuous exercise mode of low-power；Into the autompulse exercise mode of mid power；Into the automatic continuous exercise mode of mid power；The present invention realizes whole automations that cyclotron restarts exercise period, is effectively simplified some complex processes that cyclotron-on needs artificial judgment in the process, improves the operational efficiency in low level operational process.
Description
Technical field
It is dynamic certainly that the present invention relates to cyclotron technical fields more particularly to a kind of cyclotron low level system reboot
Dynamic exercising apparatus and control method.
Background technique
Cyclotron is widely used in atomic nucleus, nuclear engineering, chemistry, radioecology, Radiation Medicine, solid-state physics etc.
Basic research and the diagnosing and treating of disease, the activation analysis of high purity material, the radiation treatment of certain industrial products, agricultural production
The radiation treatment of product and other food, the simulation fields such as cosmic radiation and simulated-nuclear explosion.
It is delivered to customer with cyclotron in use, in the process of early period, fortune when we need to make a Tianwan businessman
During defeated, in other long-times and atmosphere contact process or be that convolution accelerates after the cyclotron-off time is longer
The inner surface of device cavity (cavity is the device for establishing voltage) has pollution, which causes low level system to run Shi Qigao
Level signal can generate reflection when being fed into cavity by transmitter, will cause equipment damage when being reflected into equipment.So
It needs to accelerate cavity to perform physical exercise convolution before cyclotron-on, the exercise is exactly to pass through constantly to send out to transmitter
It penetrates signal, transmitter and constantly signal is amplified and constantly establishes high voltage electric field, the high voltage electric field in the cavity constantly and will be contaminated
Cavity inner surface remove, whole pollution cleanups are completely finally completed into exercise routine.This exercise routine can be very long, forging
The case where being up to 1 month, 2 months, 3 months, 4 months when refining has, even up to half a year.
It is divided into two stages: the operation phase after the completion of exercise period and exercise in prior art accelerator use process.
The operation phase is automatically controlled by low level system, but exercise period is completely using the method manually taken exercise: artificial exercise side
The i.e. artificial transmitting signal knob of rotation on one side of method, sees oscillograph workout results on one side.Due to accelerator exercise require 24 hours not
Interruption is taken exercise, and therefore, just needs out class Three, general per tour to need 2 people, 6 people of whole day, if forging using artificial exercise method
The refining time is half a year, then will expend a large amount of manpower, and this is only the people expended when using for 1 cyclotron payment
Power is delivered for use if it is tens, several hundred cyclotrons, then needs to pay huge human cost, due to manpower at
This is excessively high, has seriously affected the popularization and use of cyclotron.
Summary of the invention
The present invention is to solve problem of the prior art, proposes that a kind of cyclotron low level system reboot moves automatic exercise
Device and control method, it is therefore intended that solve in prior art cyclotron exercise routine due to being made using artificial exercise method
It is excessively high at human cost, lead to seriously affect the problem of cyclotron is promoted the use of.
The present invention is to solve its technical problem to use following technical scheme:
A kind of dynamic automatic exercise device of cyclotron low level system reboot, its main feature is that: including cavity sampled signal
Unit, pick-up unit, ADC sampling unit, FFT transform and zeroing data and data processing unit, comparing unit, control output
Signal element, cavity Arc detection unit, cavity sampled signal processing unit, motor control unit；The cavity sampled signal
Unit obtains cavity sampled signal from the accelerator cavity of cyclotron low level operating system, then cavity sampled signal is led to
It crosses wave detector and ADC sampling unit is sent to FFT transform and zeroing data and data processing unit；FFT transform and zeroing data
Processing result is sent to the comparing unit with data processing unit, comparison result is sent to the control by the comparing unit
Output signal unit processed；Its input terminal of the control output signal unit receives respectively from comparing unit and cavity Arc detection
The signal of unit, its output end send a signal to the transmitter of cyclotron low level operating system；The cavity sampling
Its input terminal of signal processing unit obtains cavity sampled signal from cavity sampled signal unit and is handled, then by processing result
It exports to the motor control unit；The motor control unit outputs signal to cyclotron low level and restarts automatic forging
The motor driver of refining system.
A kind of cyclotron low level system reboot moves the intelligent control method of automatic exercise device, and this method is for every
When secondary restarting cyclotron low level system or the system closedown time is longer when being switched on again, carries out system self-starting exercise
And operation；Its main feature is that: method includes the following steps:
Step 1: the automatic exercise mode moved into cyclotron low level system reboot；
Step 2: the automatic running pattern moved into cyclotron low level system reboot；
Detailed process is as follows for the step 1:
(1) the threshold parameter under different mode is set；
(2) the automatic continuous exercise mode of low-power is entered；
(3) the autompulse exercise mode of mid power is entered；
(4) the automatic continuous exercise mode of mid power is entered；
Threshold parameter under the different mode includes the continuous exercise mode threshold parameter of low-power, medium function pulse exercise
The continuous exercise mode threshold parameter of mode threshold parameter, mid power.
Moreover, (2) the process enters the continuous exercise mode of low-power, following link is specifically included:
(1) the continuous wave signal of a low-power is inputted；
(2) cavity real-time perfoming low-power is searched for by motor；
(3) detection, sampling, sequence, maximizing；
(4) judge to sample whether maximum value is more than or equal to low-power exercise threshold value, if sampling maximum value is more than or equal to low rate
Threshold value is tempered, then is transferred to next mid power pulse exercise mode, if sampling maximum value, which is less than low-power, tempers threshold value,
It returns to link (1), continues the automatic continuous exercise mode of low-power；
Moreover, (3) the process enters the pulse exercise mode of mid power, following link is specifically included:
(1) the pulse signal of a mid power is inputted；
(2) analog signal processing is carried out to the sampled signal of cavity；
(3) analog signal is digitized；
(4) digitized result is arranged and is zeroed；
(5) to treated, result carries out Fourier transformation；
(6) the broadening of current PRF is judged according to Fourier's judging result: it is medium whether the broadening of current PRF is less than or equal to
Power pulse exercise mode threshold parameter if the broadening of current PRF is less than or equal to mid power pulse exercise mode threshold value,
Then enter the continuous exercise mode of next mid power, if the broadening of current PRF is greater than mid power pulse exercise mode threshold
(1) value, return course, continue the autompulse exercise mode of mid power.
Moreover, (4) the process enters the continuous exercise mode of mid power, following link is specifically included:
(1) the continuous wave signal of a mid power is inputted；
(2) tune in real time and Protection of arcing is provided；
Detection, sampling, sort, minimize；
(4) judge whether cavity sampling minimum value is more than or equal to mid power and continuously tempers threshold value, if it is terminate right
It is required that the automatic exercise mode of the cyclotron low level system of 1 step 1, be transferred to claim 1 step 2 convolution accelerate
The automatic running pattern of device low level system continues the continuous exercise mode of mid power if not then returning (1).
Moreover, the broadening of the current PRF of the process (6) is to meet K=(2pi/ in FFT transform afterpulse sequence X [K]
The broadening of the pulse of point when Tr)/(2pi/NTp), wherein X represents the pulse train after FFT transform, and X [K] represents FFT transform
The value of frequency domain sequence every bit afterwards, K represent each point after FFT transform on frequency domain sequence, and Tr represents before FFT transform arteries and veins in time domain
Rush width, Tp represents time-domain sampling period, N before FFT transform and represents the points of time-domain sampling before FFT transform.
Advantages of the present invention effect
1, transit chamber sampler body signal element of the present invention from accelerator cavity receive sampled signal, by by sampled signal into
Row detection, ADC sampling, data processing and zeroing data, FFT transform compare threshold value, transit chamber sampler body signal processing unit control
Motor driver processed receiving cavity Arc detection device and compares threshold cell signal simultaneously simultaneously by control output signal unit
It is handled and is exported processing result to signal to transmitter, realized cyclotron and restart all automatic of exercise period
Change, be effectively simplified some complex processes that cyclotron-on needs artificial judgment in the process, improves low level operation
Operational efficiency in the process.
2, the present invention solve this field realize for a long time cyclotron automatically take exercise encounter it is safe, quick,
Three knotty problems of stability, by being arranged, low-power is continuously taken exercise, mid power pulse exercise, mid power are continuously taken exercise
Three phases, satisfactorily solve these three problems: the continuous exercise mode of low-power had both met wanting for exercise initial stage low starting
It asks and also meets fast starting requirement；Mid power pulse exercise mode both meet take exercise mid-term require speed-raising accelerate requirement or
It meets because of quickly bring security requirement；The continuous exercise mode of mid power both meets exercise stability at later stage and wants
The requirement for also meeting rapidity on the basis of stability is asked, three exercise mode combinations realize scientific and safety
The ingenious combination of property.
3, the present invention dexterously utilizes Fourier transformation+point value to be measured and set point threshold in mid power pulse exercise period
The method that value compares solves mid power pulse exercise mode because pulse feedback signal is unstable, is difficult to confirm exercise effect
Knotty problem further by Fourier transformation+point value to be measured and set point threshold value comparison method, solve medium
The problem of pulse width is measured under power pulse exercise mode, to being realized with setting pulse width and actual pulse width
It is compared, determines the whether successful target of current exercise.
Detailed description of the invention
Fig. 1 a is that cyclotron low level system reboot of the present invention moves automatic exercise structure drawing of device；
Fig. 1 b is cyclotron low level system running pattern structure chart；
Fig. 2 is that the present invention is based on the intelligent control method streams that cyclotron low level system reboot moves automatic exercise device
Cheng Tu；
Fig. 3 is that cyclotron low level system reboot of the present invention moves automatic exercise model process figure；
Fig. 4 is the continuous exercise mode flow chart of low-power of the present invention；
Fig. 5 is the pulse exercise mode flow chart of mid power of the present invention；
Fig. 6 is the continuous exercise mode flow chart of mid power of the present invention；
Fig. 7 a, Fig. 7 b are Fourier transformation time domain and frequency domain corresponding relationship；
Fig. 8 a is the ideally Fourier transformation time domain and frequency domain corresponding relationship for completing to take exercise；
Fig. 8 b is to temper Fourier transformation time domain and frequency domain corresponding relationship under preceding nonideality；
Fig. 8 c, Fig. 8 d are the exploded view of Fig. 8 b.
Specific embodiment
The present invention is made with reference to the accompanying drawing and being explained further:
Design principle of the present invention
1, the continuous exercise mode design principle of low-power: what accelerator cavity exercise initial stage needed to cross over is that voltage is relatively low
The sub- effect region of multiple spot, if the polyelectron region relatively low not across this voltage, then up increase power it is also certain
Can do not add up.Since what is applied in lower power stage to accelerator cavity is reflection caused by low-power makes because of many-electron effect
Method that is small, equipment will not being damaged, therefore continuous transmitted wave can be used in lower power stage.
2, mid power pulse exercise mode design principle: polyelectron effect is generated when generating several across lower power stage
Behind the region answered, it is necessary to be taken exercise using the medium pulse power of higher intensity, since the intensity of medium power signal is compared
The intensity of low-power signal is high, reflect in order to prevent it is excessive cause because the reason of protection causes equipment to frequently switch on and damage,
It just needs by the way of pulse and the mode of discontinuous transmission, the mode of pulse is exactly to be spaced the transmitting of one second or certain time
Mode.
Mid power pulse exercise method is summarised as the signal by feeding back to judge, with being continuously increased pulse
Intensity and width, to realize the leap in intermediate power region for many-electron effect.Mid power pulse exercise period mesh
Mark is: realizing the pulse width of pulse exercise period automatic identification or automatic monitoring tested point.Front low-power continuously monitors phase
Mid power exercise mode is easier to realize, because signal is continuous wave, to sampled data progress detection and sequence, and with
It is known that after threshold value comparison and increases power or continue to take exercise under original power.After being taken exercise into mid power pulse,
Because the signal of pulse feedback be it is very unstable very random, can not determine whether simply from time domain current exercise success,
This just needs to find out a kind of method and currently whether has taken exercise to judge automatically.
The present invention uses Fast Fourier Transform (FFT)+set point threshold value method, this set point is exactly by being calculated
Frequency-domain function coordinate abscissa on some point and this point be referred to as set point.Set point threshold value is exactly that set point is corresponding
The value of ordinate.After this set point is found, when testing data carry out Fast Fourier Transform (FFT) after result abscissa with
End value at the identical frequency point of set point, is compared with set point threshold value, if the value of tested point is greater than set point threshold value
It is judged as taking exercise not yet, needs to continue pulse exercise, if the value of tested point is less than set point threshold value and is judged as
It is good to be taken exercise, and needs to be transferred to next link.
Above by the comparison of the value of tested point and set point threshold value to judge take exercise whether successful principle: take exercise successfully
Standard be that given pulse width is consistent with actual pulse width.When in cavity there are when impurity, the latter half signal of pulse
It is often reflected back, therefore when there are the width that the width of actual pulse when impurity is less than given pulse in cavity, so
When given pulse width is not achieved in actual pulse width, since the spectrum component of burst pulse is more relative to broad pulse,
The distance that tested point burst pulse reaches zero point (set point threshold value is 0) from the wave crest of frequency spectrum is longer than broad pulse that is, narrow
Distance of the coordinate points apart from origin when pulse reaches zero point from the wave crest of frequency spectrum in X-axis is farther.Therefore, in same time model
It encloses, relative to set point threshold value, ordinate value when burst pulse frequency spectrum reaches set point is greater than the threshold value of set point.Due to narrow
Pulse width cannot reach given width, thus judge that the effect of current exercise is not good enough, need to continue to take exercise, continue to forge
The method of refining is exactly to pass through low level system to continue to give a mid power pulse signal, transmitter to transmitter for the signal
It is fed into accelerator cavity after amplification, establishes high voltage electric field, by the high voltage electric field removal intracorporal impurity of chamber in accelerator cavity
Method, when the intracorporal impurity of chamber completely removes clean, tested point pulse width is identical as given pulse width at this time, table
When present tested point reaches set point, the value and set-point value of tested point are identical or less than set point threshold value.
3, the continuous exercise mode design principle of mid power.Phase III is because working as pulse using mid power continuous wave
Stage in the past after, it is also necessary to consolidate exercise as a result, needing to provide it Protection of arcing in this stage and tuning the function of cavity.
Using continuous exercising way compare using pulse mode the electronics of more many-electron effects can be laid come.In third rank
Section can using continuous wave exercise be because second stage by the intracorporal impurity of Accelerator Cavity remove substantially completely, need not
Worry excessive being present such that due to cavity impurity reflection be excessive equipment is caused to frequently switch on and damage.
It although the phase III is different with first stage transmission power intensity, is taken exercise using continuous wave transmitting signal
Method, there are also other differences in addition to this: the first stage is moved back and forth in a wide range of using motor and is performed physical exercise, but reaches the
Three stage motors cannot be in a wide range of interior reciprocating motion, because the mid power intensity of phase III is relative to the first stage
Low-power intensity is big, if therefore phase III motor moved back and forth its reflection power on a large scale again will be very big, because
This phase III needs motor to move back and forth in certain tuning range.
4, the relationship of automatic exercise device and low level operating system of the present invention.The cyclotron low level system of Fig. 1 a
A part of the low level system that automatic exercise device is Fig. 1 b is restarted, but is not the whole of the low level system of Fig. 1 b,
Fig. 1 a illustrates the line relationship of the present invention with accelerator cavity, transmitter, motor driver in Fig. 1 b.
As shown in Figure 1 b, cyclotron low level system running pattern structure: including low level system, transmitter, add
Fast device cavity and the intracorporal cavity of the chamber finely tune motor, motor driver；The low level system restarts automatic forging
Refining device includes control output signal unit, which sends high-frequency signal to transmitter, and transmitter will be low
The signal that level system provides amplifies and the high power signals of output is fed into accelerator cavity；The accelerator
Cavity can set up high voltage electric field by the power of transmitter feed-in and accelerate to particle；The low level system can also simultaneously
The sampled signal fed back from accelerator cavity is received, while low level system can also export motor control signal and drive to motor
Device controls cavity by motor driver and finely tunes motor, guarantees the stabilization of cavity frequency；
The low level system further includes operating mode judging unit, and it is currently exercise mode which, which judges system,
Or operational mode, the operating mode judging unit belong to low level system but are located at restarting automatically for the low level system
It is another part of low level system except exercising apparatus.
Based on the above inventive principle, the present invention devises a kind of dynamic automatic exercise dress of cyclotron low level system reboot
It sets.
A kind of cyclotron low level system reboot moves automatic exercise device as shown in Figure 1, including cavity sampled signal
Unit, pick-up unit, ADC sampling unit, FFT transform and zeroing data and data processing unit, comparing unit, control output
Signal element, cavity Arc detection unit, cavity sampled signal processing unit, motor control unit；The cavity sampled signal
Unit obtains cavity sampled signal from the accelerator cavity of cyclotron low level operating system, then cavity sampled signal is led to
It crosses wave detector and ADC sampling unit is sent to FFT transform and zeroing data and data processing unit；FFT transform and zeroing data
Processing result is sent to the comparing unit with data processing unit, comparison result is sent to the control by the comparing unit
Output signal unit processed；Its input terminal of the control output signal unit receives respectively from comparing unit and cavity Arc detection
The signal of unit, its output end send a signal to the transmitter of cyclotron low level operating system；The cavity sampling
Its input terminal of signal processing unit obtains cavity sampled signal from cavity sampled signal unit and is handled, then by processing result
It exports to the motor control unit；The motor control unit outputs signal to cyclotron low level and restarts automatic forging
The motor driver of refining system.
Supplementary explanation:
1, cavity sampled signal processing unit: main process chambers due to frequency variation caused by generating heat when power is higher,
Need motor to be finely adjusted compensation, the unit mainly using analysis signal and reference signal relative phase relation, and according to
As a result motor position is adjusted, forms a closed loop, guarantees the tuning state of cavity.
2, the position of cavity fine tuning motor and effect: the cavity of Fig. 1 b finely tunes motor and accelerator cavity from function division category
In an entirety, but cavity fine tuning motor is not mounted on accelerator inside cavity and is mounted in outside Accelerator Cavity body closely
Accelerator cavity installation, accelerator cavity be sealing.
It is actually to carry out frequency sweep or cavity fine tuning motor with chamber with the trimmer of cavity that cavity, which finely tunes motor,
The fine tuning structure of body carries out frequency sweep.The frequency that cavity itself has it intrinsic, when its mechanical structure changes, it is intrinsic
Frequency can also change, and the device that frequency is finely tuned to it will be arranged when designing cavity for place, as long as this device
Then its frequency will change for movement, be finely adjusted with this.Cavity finely tunes motor tunes cavity for power frequency when high
Rate: because cavity temperature can increase when increasing power to cavity, the intrinsic frequency of cavity can be changed when the temperature rises, so
Guaranteed with the fine tuning that motor carries out power, the frequency of cavity is adjusted to desired frequency.
A kind of intelligence control that automatic exercise device is moved based on cyclotron low level system reboot has also been devised in the present invention
Method processed, when this method for restarting cyclotron low level system every time or the system closedown time longer is switched on again
When, carry out system self-starting exercise and operation；
As shown in Fig. 2, method includes the following steps:
Step 1: the automatic exercise mode moved into cyclotron low level system reboot；
Step 2: the automatic running pattern moved into cyclotron low level system reboot；
As shown in figure 3, detailed process is as follows for the step 1:
(1) the threshold parameter under different mode is set；
(2) the automatic continuous exercise mode of low-power is entered；
(3) the autompulse exercise mode of mid power is entered；
(4) the automatic continuous exercise mode of mid power is entered；
Threshold parameter under the different mode includes the continuous exercise mode threshold parameter of low-power, mid power pulse forging
Refine mode threshold parameter, the continuous exercise mode threshold parameter of mid power.
As shown in figure 4, (2) the process enters the continuous exercise mode of low-power, following link is specifically included:
(1) the continuous wave signal of a low-power is inputted；
(2) cavity real-time perfoming low-power is searched for by motor；
(3) detection, sampling, sequence, maximizing；
(4) judge to sample whether maximum value is more than or equal to low-power exercise threshold value, if sampling maximum value is more than or equal to low rate
Threshold value is tempered, then is transferred to next mid power pulse exercise mode, if sampling maximum value, which is less than low-power, tempers threshold value,
It returns to link (1), continues the automatic continuous exercise mode of low-power；
As shown in figure 5, (3) the process enters the pulse exercise mode of mid power, following link is specifically included:
(1) the pulse signal of a mid power is inputted；
(2) analog signal processing is carried out to the sampled signal of cavity；
(3) analog signal is digitized；
(4) digitized result is arranged and is zeroed；
Supplementary explanation:
It is described that digitized result is arranged i.e.: digitlization post-detection result to be subjected to arrangement of averaging, and by institute
There are data to subtract the bias that should be exported when being 0, referred to as digitized result is arranged.
It is described to be zeroed i.e. to digitized result: digitlization post-detection result data is less than a certain range of be defaulted as
Zero, referred to as it is zeroed to digitized result.
(5) to treated, result carries out Fourier transformation；
(6) the broadening of current PRF is judged according to Fourier's judging result: it is medium whether the broadening of current PRF is less than or equal to
Power pulse exercise mode threshold parameter if the broadening of current PRF is less than or equal to mid power pulse exercise mode threshold value,
Then enter the continuous exercise mode of next mid power, if the broadening of current PRF is greater than mid power pulse exercise mode threshold
(1) value, return course, continue the autompulse exercise mode of mid power.
Supplementary explanation:
If Fig. 7 a, Fig. 7 b are to measure pulse width method schematic diagram using Fourier transformation method.Fig. 7 a is Fourier's change
Time-domain diagram before changing, Fig. 7 b are the frequency domain figure after Fourier transformation.It is issued under B point expression mid power pulse exercise mode
Width Tr, the A point of pulse is setting value, indicates that Fourier transformation afterpulse ideal width to be achieved, A point value are (2pi/
Tr)/(2pi/NTp) wherein count by Tp=sampling period, N time-domain sampling.If frequency domain point curve to be measured is in the ordinate value of A point
Less than A point threshold value, illustrate that pulse width has reached given width, if frequency domain point curve to be measured is big in the ordinate value of A point
In A point threshold value, illustrate that pulse width does not reach given width.As described in inventive principle: this is because burst pulse
Spectrum component is more relative to broad pulse, therefore tested point burst pulse reaches zero point from the wave crest of frequency spectrum (set point threshold value is 0)
Distance it is longer than broad pulse, that is, coordinate points distance of burst pulse when reaching zero point from the wave crest of frequency spectrum in X-axis be former
The distance of point is farther, thus judges whether the width of pulse reaches given width.
If Fig. 8 a reaches given width diagram for actual pulse width after Fourier transformation, the frequency domain figure on the right can be seen
Out, tested point is equal to the threshold value of A in the curve values of A point, and the threshold value of A point is 0.
If Fig. 8 b does not reach given width diagram for actual pulse width after Fourier transformation, the frequency domain figure on the right can
To find out, tested point is far longer than the threshold value of A in the curve values of A point, illustrates that the pulse of tested point is burst pulse, is less than given arteries and veins
The width of punching.
Fig. 8 c, Fig. 8 d are the component map of Fig. 8 b, and pulsion phase ratio Fig. 8 d of Fig. 8 c is burst pulse, so, the tested point of Fig. 8 c
It is greater than the threshold value 0 of A in the value of A, the pulse width of Fig. 8 d is equal to given width, so, value of Fig. 8 d tested point in A is equal to A's
Threshold value 0.
As shown in fig. 6, (4) the process enters the continuous exercise mode of mid power, following link is specifically included:
(1) the continuous wave signal of a mid power is inputted；
(2) tune in real time and Protection of arcing is provided；
Detection, sampling, sort, minimize；
(4) judge whether cavity sampling minimum value is more than or equal to mid power and continuously tempers threshold value, if it is terminate right
It is required that the automatic exercise mode of the cyclotron low level system of 1 step 1, be transferred to claim 1 step 2 convolution accelerate
The automatic running pattern of device low level system continues the continuous exercise mode of mid power if not then returning (1).
The broadening of the current PRF of the process (6) be FFT transform afterpulse sequence X [K] on meet K=(2pi/Tr)/
The broadening of the pulse of point when (2pi/NTp), wherein X represents the pulse train after FFT transform, and X [K] represents frequency after FFT transform
The value of domain sequence every bit, K represent each point after FFT transform on frequency domain sequence, and Tr represents before FFT transform that pulse is wide in time domain
Degree, Tp represent time-domain sampling period, N before FFT transform and represent the points of time-domain sampling before FFT transform.
It is emphasized that embodiment of the present invention be it is illustrative, without being restrictive, therefore packet of the present invention
It includes and is not limited to embodiment described in specific embodiment.
Claims (6)
1. a kind of cyclotron low level system reboot moves automatic exercise device, it is characterised in that: including cavity sampled signal
Unit, pick-up unit, ADC sampling unit, FFT transform and zeroing data and data processing unit, comparing unit, control output
Signal element, cavity Arc detection unit, cavity sampled signal processing unit, motor control unit；The cavity sampled signal
Unit obtains cavity sampled signal from the accelerator cavity of cyclotron low level operating system, then cavity sampled signal is led to
It crosses wave detector and ADC sampling unit is sent to FFT transform and zeroing data and data processing unit；FFT transform and zeroing data
Processing result is sent to the comparing unit with data processing unit, comparison result is sent to the control by the comparing unit
Output signal unit processed；Its input terminal of the control output signal unit receives respectively from comparing unit and cavity Arc detection
The signal of unit, its output end send a signal to the transmitter of cyclotron low level operating system；The cavity sampling
Its input terminal of signal processing unit obtains cavity sampled signal from cavity sampled signal unit and is handled, then by processing result
It exports to the motor control unit；The motor control unit outputs signal to cyclotron low level and restarts automatic forging
The motor driver of refining system.
2. a kind of intelligent control side for moving automatic exercise device based on a kind of cyclotron low level system reboot of claim 1
Method, this method for every time restart cyclotron low level system when or the system closedown time it is longer be switched on again when, into
Row system self-starting is taken exercise and operation；It is characterized by: method includes the following steps:
Step 1: the automatic exercise mode moved into cyclotron low level system reboot；
Step 2: the automatic running pattern moved into cyclotron low level system reboot；
Detailed process is as follows for the step 1:
(1) the threshold parameter under different mode is set；
(2) the automatic continuous exercise mode of low-power is entered；
(3) the autompulse exercise mode of mid power is entered；
(4) the automatic continuous exercise mode of mid power is entered；
Threshold parameter under the different mode includes the continuous exercise mode threshold parameter of low-power, mid power pulse exercise mould
The continuous exercise mode threshold parameter of formula threshold parameter, mid power.
3. a kind of cyclotron low level system reboot moves the intelligent control side of automatic exercise device according to claim 2
Method, it is characterised in that: (2) the process enters the continuous exercise mode of low-power, specifically include following link:
(1) the continuous wave signal of a low-power is inputted；
(2) cavity real-time perfoming low-power is searched for by motor；
(3) detection, sampling, sequence, maximizing；
(4) judge to sample whether maximum value is more than or equal to low-power exercise threshold value, if sampling maximum value is taken exercise more than or equal to low rate
Threshold value is then transferred to next mid power pulse exercise mode, if sampling maximum value, which is less than low-power, tempers threshold value, returns
(1) link, continues the automatic continuous exercise mode of low-power.
4. a kind of cyclotron low level system reboot moves the intelligent control side of automatic exercise device according to claim 2
(3) method, the process enter the pulse exercise mode of mid power, specifically include following link:
(1) the pulse signal of a mid power is inputted；
(2) analog signal processing is carried out to the sampled signal of cavity；
(3) analog signal is digitized；
(4) digitized result is arranged and is zeroed；
(5) to treated, result carries out Fourier transformation；
(6) the broadening of current PRF is judged according to Fourier's judging result: whether the broadening of current PRF is less than or equal to mid power
Pulse exercise mode threshold parameter if the broadening of current PRF is less than or equal to mid power pulse exercise mode threshold value, into
Enter the continuous exercise mode of next mid power, if the broadening of current PRF is greater than mid power pulse exercise mode threshold value,
(1) return course, continues the autompulse exercise mode of mid power.
5. a kind of cyclotron low level system reboot moves the intelligent control side of automatic exercise device according to claim 2
Method, it is characterised in that: (4) the process enters the continuous exercise mode of mid power, specifically include following link:
(1) the continuous wave signal of a mid power is inputted；
(2) tune in real time and Protection of arcing is provided；
(3) detection, sampling, sequence, maximizing；
(4) judge whether cavity sampling maximum value is more than or equal to mid power and continuously tempers threshold value, if it is terminate claim
The automatic exercise mode of the cyclotron low level system of 1 step 1, the cyclotron for being transferred to claim 1 step 2 are low
The automatic running pattern of level system continues the continuous exercise mode of mid power if not then returning (1).
6. a kind of cyclotron low level system reboot moves the intelligent control side of automatic exercise device according to claim 4
Method, it is characterised in that: the broadening of the current PRF of the process (6) is to meet K=(2pi/ in FFT transform afterpulse sequence X [K]
The broadening of the pulse of point when Tr)/(2pi/NTp), wherein X represents the pulse train after FFT transform, and X [K] represents FFT transform
The value of frequency domain sequence every bit afterwards, K represent each point after FFT transform on frequency domain sequence, and Tr represents before FFT transform arteries and veins in time domain
Rush width, Tp represents time-domain sampling period, N before FFT transform and represents the points of time-domain sampling before FFT transform.
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