CN110196776A - Load-balancing method, system, readable storage medium storing program for executing and equipment - Google Patents
Load-balancing method, system, readable storage medium storing program for executing and equipment Download PDFInfo
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- CN110196776A CN110196776A CN201910471745.9A CN201910471745A CN110196776A CN 110196776 A CN110196776 A CN 110196776A CN 201910471745 A CN201910471745 A CN 201910471745A CN 110196776 A CN110196776 A CN 110196776A
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- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
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- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
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Abstract
The present invention relates to a kind of load-balancing methods, system, readable storage medium storing program for executing and equipment, belong to medical imaging technical field, before PET device executes scanning, obtain PET scan agreement, for different objects, the PET scan agreement that different scanning needs is different, corresponding load distribution allocation list can be matched using the type of PET scan agreement, load distribution allocation list is issued to data forwarding plate, what the available PET scan of data forwarding plate obtained meets data, at most a data processor of data distribution will be met according to load distribution allocation list to handle, realize the parallel computation for meeting data, and load distribution allocation list and the type of PET scan agreement match, different objects can be directed to, different scanning needs to realize the data forwarding mechanism of multiplicity, make data path load balancing, it avoids counting According to loss, the homogeneity of reconstruction image after meeting data processing is improved.
Description
Technical field
The present invention relates to medical imaging technical fields, more particularly to a kind of load-balancing method, system, readable storage medium
Matter and equipment.
Background technique
PET (Positron Emission Tomography, Positron emission computed tomography) is nuclear medicine neck
Relatively advanced clinical examination image technology in domain, has been widely used in the diagnosis and research of medical domain at present.Passing through
Before PET system is scanned organism, the tracer containing radionuclide first is injected to organism, tracer is in organism
It is interior to decay and generate positive electron, after then decaying the positive electron that generates in a few tenths of millimeter of advancing to after several millimeters,
It meets with the intracorporal electronics of biology, electron-positron pair annihilation reaction occurs, to generate a pair of contrary, identical light of energy
Son, this pair of of photon passes through bio-tissue, is received by the detector of PET system, and is scattered through computer and believes at random
The correction of breath, to generate the image for being able to reflect tracer and being distributed in vivo by corresponding image reconstruction algorithm.
For long axial PET system, all due to the raising that system sensitivity requires, either data volume or counting rate
Growth at double is had, load is rebuild and reconstruction speed all faces new challenge.This requirement is coped with, traditional technology is built using multiple
Machine is parallel, carries out reconstruction calculating to PET data using random distribution mode, but is easy to cause part using random distribution mode
Access load excessive, loss of data make data consistency between each access be deteriorated, and eventually lead to the reduction of reconstruction image homogeneity.
Summary of the invention
Based on this, it is necessary to be easy to cause Part way to load using random distribution mode for traditional PET system
Greatly, loss of data makes data consistency between each access be deteriorated, eventually leads to the problem of reconstruction image homogeneity reduces, provide
A kind of load-balancing method, system, readable storage medium storing program for executing and equipment.
A kind of load-balancing method, comprising the following steps:
PET scan agreement is obtained, according to the corresponding load distribution allocation list of the type matching of PET scan agreement；
Load distribution allocation list is issued to data forwarding plate, wherein load distribution allocation list is used to indicate data forwarding
Plate meets at most a data processor of data distribution for what PET scan obtained.
According to above-mentioned load-balancing method, before PET device executes scanning, PET scan agreement is obtained, for difference
The PET scan agreement that object, different scanning need is different, can match corresponding load point using the type of PET scan agreement
Allocation list is sent out, load distribution allocation list is issued to data forwarding plate, what the available PET scan of data forwarding plate obtained meets
Data will meet at most a data processor of data distribution according to load distribution allocation list and handle, and realization meets data
Parallel computation, and load distribution allocation list and the type of PET scan agreement match, and can sweep for different objects, difference
The data forwarding mechanism for needing to realize multiplicity is retouched, data path load balancing is made, avoids loss of data, raising meets data processing
The homogeneity of reconstruction image afterwards.
In one of the embodiments, according to the step of the corresponding load distribution allocation list of the type matching of PET scan agreement
It is further comprising the steps of before rapid:
Load distribution allocation list is generated according to the activity distributed intelligence of sweep object.
In one of the embodiments, according to the step of the corresponding load distribution allocation list of the type matching of PET scan agreement
It is further comprising the steps of after rapid:
When PET scan object is patient, the position of patient when obtaining PET scan adjusts load distribution according to position and matches
Set table.
A kind of load-balancing method, comprising the following steps:
Receive load distribution allocation list, wherein load distribution allocation list and the type of PET scan agreement match；
Obtain PET scan meets data, will meet at most a data processing of data distribution according to load distribution allocation list
Device.
According to above-mentioned load-balancing method, before PET device executes scanning, load distribution allocation list is received, for
The PET scan agreement that different objects, different scanning need is different, can be matched using the type of PET scan agreement corresponding negative
Distribution allocation list is carried, after meeting data obtain that PET scan obtains, data point can will be met according to load distribution allocation list
It is sent to multiple data processors to be handled, realizes the parallel computation for meeting data, and load distribution allocation list and PET scan
The type of agreement matches, and can need to realize the data forwarding mechanism of multiplicity for different objects, different scanning, keep data logical
Road load balancing avoids loss of data, improves the homogeneity of reconstruction image after meeting data processing.
At most a data processor of data distribution will be met according to load distribution allocation list in one of the embodiments,
Step is further comprising the steps of:
The meeting in header file of multiple data processors is written into load distribution allocation list respectively, wherein at data
The data reconstruction unit for managing device executes initialization operation according to load distribution allocation list.
A kind of SiteServer LBS, comprising:
Distribute allocation list matching unit, for obtaining PET scan agreement, the type matching according to PET scan agreement is corresponding
Load distribution allocation list；
Distribute allocation list issuance unit, for load distribution allocation list to be issued to data forwarding plate, wherein load distribution
Allocation list is used to indicate data forwarding plate and meets at most a data processor of data distribution for what PET scan obtained.
According to above-mentioned SiteServer LBS, before PET device executes scanning, distribution allocation list matching unit is obtained
PET scan agreement, the PET scan agreement needed for different objects, different scanning is different, utilizes the type of PET scan agreement
Corresponding load distribution allocation list can be matched, distributes allocation list issuance unit for load distribution allocation list and is issued to data forwarding
Plate, what the available PET scan of data forwarding plate obtained meets data, will meet data distribution extremely according to load distribution allocation list
Multiple data processors are handled, and realize the parallel computation for meeting data, and load distribution allocation list and PET scan agreement
Type match, can need to realize the data forwarding mechanism of multiplicity for different objects, different scanning, keep data path negative
Equilibrium is carried, loss of data is avoided, improves the homogeneity of reconstruction image after meeting data processing.
Distribution allocation list matching unit is in the type matching according to the PET scan agreement in one of the embodiments,
Before corresponding load distribution allocation list, load distribution allocation list is generated according to the activity distributed intelligence of sweep object.
Distribution allocation list matching unit obtains PET and sweeps when PET scan object is patient in one of the embodiments,
The position of patient when retouching adjusts load distribution allocation list according to position.
A kind of SiteServer LBS, comprising:
Distribute allocation list receiving unit, for receiving load distribution allocation list, wherein load distribution allocation list is swept with PET
The type for retouching agreement matches；
Data acquisition Dispatching Unit meets data for obtain PET scan, will meet number according to load distribution allocation list
According to being distributed to multiple data processors.
According to above-mentioned SiteServer LBS, before PET device executes scanning, distribution allocation list receiving unit receives negative
Distribution allocation list is carried, the PET scan agreement needed for different objects, different scanning is different, utilizes the type of PET scan agreement
It can match corresponding load distribution allocation list, it, can after data acquisition Dispatching Unit meets data obtain that PET scan obtains
It is handled so that at most a data processor of data distribution will be met according to load distribution allocation list, realization meets the parallel of data
It calculates, and load distribution allocation list and the type of PET scan agreement match, can be needed for different objects, different scanning
The data forwarding mechanism for realizing multiplicity, makes data path load balancing, avoids loss of data, and raising meets weight after data processing
Build the homogeneity of image.
Data acquisition Dispatching Unit is also used to that load distribution allocation list is written respectively multiple in one of the embodiments,
Data processor meets in header file, wherein the data reconstruction unit of data processor is according to load distribution allocation list
Execute initialization operation.
A kind of readable storage medium storing program for executing, is stored thereon with executable program, realizes when executable code processor executes
The step of load-balancing method stated.
Above-mentioned readable storage medium storing program for executing may be implemented to execute scanning in PET device by the executable program that it is stored
Before, PET scan agreement is obtained, the PET scan agreement needed for different objects, different scanning is different, utilizes PET scan agreement
Type can match corresponding load distribution allocation list, load distribution allocation list is issued to data forwarding plate, data forwarding
What the available PET scan of plate obtained meets data, will be met at most a data of data distribution according to load distribution allocation list
Reason device is handled, and realizes the parallel computation for meeting data, and the type phase of load distribution allocation list and PET scan agreement
Match, can need to realize the data forwarding mechanism of multiplicity for different objects, different scanning, make data path load balancing, keep away
Exempt from loss of data, improves the homogeneity of reconstruction image after meeting data processing.
A kind of system controller, system controller are connect with data forwarding plate, and data forwarding plate is respectively and at multiple data
Manage device connection；
System controller obtains PET scan agreement, is configured according to the corresponding load distribution of the type matching of PET scan agreement
Load distribution allocation list is issued to data forwarding plate by table；
Data forwarding plate acquisition PET scan meets data, will meet data distribution at most according to load distribution allocation list
A data processor.
According to above-mentioned system controller, before PET device executes scanning, system controller obtains PET scan agreement,
The PET scan agreement needed for different objects, different scanning is different, can be matched accordingly using the type of PET scan agreement
Load distribution allocation list, load distribution allocation list is issued to data forwarding plate, the available PET scan of data forwarding plate obtains
To meet data, at most a data processor of data distribution will be met according to load distribution allocation list and handled, realize symbol
The parallel computation of data is closed, and load distribution allocation list and the type of PET scan agreement match, it can be for different right
As, different scanning needs to realize the data forwarding mechanism of multiplicity, makes data path load balancing, avoid loss of data, improve symbol
The homogeneity of reconstruction image after conjunction data processing.
A kind of load-balancing device, including data symbols plywood and above-mentioned system controller, data forwarding plate, multiple data
Processor；
Data symbols plywood is used to meet operation to the single event execution of PET scan, and generation meets data, and is sent to data
Conversion board.
According to above-mentioned load-balancing device, including data symbols plywood and above-mentioned system controller, data forwarding plate, more
A data processor；Before PET device executes scanning, system controller obtains PET scan agreement, for different objects, no
The PET scan agreement needed with scanning is different, can match corresponding load distribution using the type of PET scan agreement and configure
Load distribution allocation list is issued to data forwarding plate by table, and what the available PET scan of data forwarding plate obtained meets data,
At most a data processor of data distribution will be met according to load distribution allocation list to handle, realize the parallel meter for meeting data
It calculates, and load distribution allocation list and the type of PET scan agreement match, can be needed for different objects, different scanning
The data forwarding mechanism for realizing multiplicity, makes data path load balancing, rebuilds after avoiding loss of data, raising from meeting data processing
The homogeneity of image.
Detailed description of the invention
Fig. 1 is the flow diagram of the load-balancing method in one embodiment；
Fig. 2 is the flow diagram of the load-balancing method in another embodiment；
Fig. 3 is the flow diagram of the load-balancing method in another embodiment；
Fig. 4 is the flow diagram of the load-balancing method in further embodiment；
Fig. 5 is the structural schematic diagram of the SiteServer LBS in one embodiment；
Fig. 6 is the structural schematic diagram of the SiteServer LBS in another embodiment；
Fig. 7 is the connection schematic diagram of the system controller in one embodiment；
Fig. 8 is the structural schematic diagram of the load-balancing device in one embodiment；
Fig. 9 is the connection schematic diagram of the PET medical imaging devices in one embodiment；
Figure 10 be one embodiment in PET scan scene in source distribution schematic diagram；
Figure 11 is the idiographic flow schematic diagram of the load-balancing method in one embodiment.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawings and embodiments, to this
Invention is described in further detail.It should be appreciated that the specific embodiments described herein are only used to explain the present invention,
And the scope of protection of the present invention is not limited.
It should be noted that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example, based on the embodiments of the present invention, those skilled in the art obtained under that premise of not paying creative labor it is all its
His embodiment, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
Load-balancing method provided by the present application can be applied to a variety of different PET medical imaging devices and carry out image
In the application environment of reconstruction.
It is shown in Figure 1, it is the flow diagram of the load-balancing method of one embodiment of the invention.In the embodiment
Load-balancing method the following steps are included:
Step S110: obtaining PET scan agreement, is configured according to the corresponding load distribution of the type matching of PET scan agreement
Table；
In this step, PET scan agreement be PET during the scanning process used in agreement, be mainly used for control PET at
As system all parts, the characteristics of making PET scan meet sweep object and scanning demand, due to the diversity and not of sweep object
Same demand, there are many type, the types of PET scan agreement can reflect sweep object and demand again simultaneously for PET scan agreement；
Load distribution allocation list refers to comprising data processor list, meets data list and data processor list and meet number
According to the command format file of the mapping relations of list, using the corresponding load distribution allocation list of the type matching of PET scan agreement,
Scan data can be loaded and carry out equilibrium assignment according to corresponding load distribution allocation list, avoid loss of data and concentration.
Step S120: load distribution allocation list is issued to data forwarding plate, wherein load distribution allocation list is used to indicate
Data forwarding plate meets at most a data processor of data distribution for what PET scan obtained；
In this step, PET scan data carries out after meeting operation, obtains meeting Data Concurrent and send to data forwarding plate,
Data forwarding plate is mainly used for meet data distribution to data processor progress data processing, to obtain reconstruction image；Data
The distribution mechanisms of conversion board are configurable, and load distribution allocation list is issued to data forwarding plate, can be forwarded with designation date
Plate carries out the distribution for meeting data according to the requirement of load distribution allocation list, achievees the purpose that load balancing.
In the present embodiment, before PET device executes scanning, PET scan agreement is obtained, for different objects, difference
It is different to scan the PET scan agreement needed, corresponding load distribution allocation list can be matched using the type of PET scan agreement,
Load distribution allocation list is issued to data forwarding plate, what the available PET scan of data forwarding plate obtained meets data, according to
Load distribution allocation list will meet at most a data processor of data distribution and handle, and realize the parallel computation for meeting data,
And load distribution allocation list and the type of PET scan agreement match, and can need to realize for different objects, different scanning
The data forwarding mechanism of multiplicity, makes data path load balancing, avoids loss of data, and raising meets reconstruction image after data processing
Homogeneity.
It should be noted that PET scan agreement may include it is a variety of, as highest activity test scanning, MPI (heart muscle perfusion)
Scanning, WB (whole body) scanning, die body scanning etc..
In one embodiment, as shown in Fig. 2, the corresponding load distribution of type matching according to PET scan agreement configures
It is further comprising the steps of before the step of table:
Load distribution allocation list is generated according to the activity distributed intelligence of sweep object.
In the present embodiment, the activity distributed intelligence of sweep object can be first obtained, is according to raw with activity distributed intelligence
At load distribution allocation list, sweep object herein refers to, and can be various types of sweep object, by obtaining
Its activity distributed intelligence is taken, to generate corresponding load distribution allocation list, has such corresponding relationship, matches using load distribution
Table is set to meet can be corresponding with activity distributed intelligence when data are distributed configuration, equally loaded.
In addition, according to the available scanning scene of type of the PET scan agreement, it can be true according to the scanning scene
Determine activity distributed data, corresponding load balancing can be matched according to the activity distributed data.Determining PET scan association
After the type of view, specific scanning scene can be thus obtained, scanning scene can reflect scanning area, such as above-mentioned highest activity
Test, typically up to activity are distributed in specific region, and MPI is scanned primarily directed to heart area；It is determined using scanning scene
Activity distributed data can determine that activity is distributed in the scanning corresponding scanning area of scene according to the feature of scanning area, should
Activity distribution refers to that the activity distribution of radionuclide in PET scan, activity distribution can be preset, can also be according to existing
The scanning historical data of same type determine；After obtaining activity distributed data, corresponding load distribution can be matched and matched
Table is set, is allowed to meet the equalization request of data distribution.
In one embodiment, as shown in figure 3, the corresponding load distribution of type matching according to PET scan agreement configures
It is further comprising the steps of after the step of table:
When PET scan object is patient, the position of patient when obtaining PET scan adjusts load distribution according to position and matches
Set table.
In the present embodiment, after according to the corresponding load distribution allocation list of the type matching of PET scan agreement, true
Determine PET scan object be patient when, the position of patient when needing to obtain PET scan is swept since the variation of patient body position will affect
Retouch the distribution of data, it is therefore desirable to be adjusted according to the position of patient to load distribution allocation list, to meet actual scanning shape
Condition.
Specifically, position can be position and direction of the patient relative to the bed of PET device, such as the head direction of patient
The opposite direction of the mobile same direction of bed or head towards bed movement, the whole bed relative to PET device of patient
Central axis deviation post etc., the difference of these positions will affect the distribution of PET scan data.
In one embodiment, PET scan object can be die body, and die body is mainly used for PET scan test and scanning
The setting of parameter, die body can be the object with certain thickness and homogeneous material, and die body material can choose and soft group of human body
The similar material of weave chemistry ingredient, water or organic glass in this way etc., corresponding die body can also have corresponding load distribution to configure
Table.
According to above-mentioned load-balancing method, the embodiment of the present invention also provides another load-balancing method system, below
The embodiment of another load-balancing method is described in detail.
It is shown in Figure 4, it is the flow diagram of the load-balancing method of one embodiment of the invention.In the embodiment
Load-balancing method the following steps are included:
Step S210: load distribution allocation list is received, wherein the type phase of load distribution allocation list and PET scan agreement
Matching；
Step S220: obtain PET scan meets data, will meet data distribution to multiple according to load distribution allocation list
Data processor.
Above-mentioned steps can be applied in the data forwarding plate of PET scan equipment, and load distribution allocation list can be by system
Controller is issued to data forwarding plate.
In the present embodiment, before PET device executes scanning, load distribution allocation list is received, for different objects, no
The PET scan agreement needed with scanning is different, can match corresponding load distribution using the type of PET scan agreement and configure
Table, obtain PET scan obtain meet data after, data distribution at most number can will be met according to load distribution allocation list
It is handled according to processor, realizes the parallel computation for meeting data, and the type of load distribution allocation list and PET scan agreement
Match, can need to realize the data forwarding mechanism of multiplicity for different objects, different scanning, keep data path load equal
Weighing apparatus avoids loss of data, improves the homogeneity of reconstruction image after meeting data processing.
It should be noted that PET scan agreement may include it is a variety of, as highest activity test scanning, MPI (heart muscle perfusion)
Scanning, WB (whole body) scanning, die body scanning etc..
In one embodiment, according to load distribution allocation list will meet data distribution at most a data processor the step of
The following steps are included:
The meeting in header file of multiple data processors is written into load distribution allocation list respectively, wherein at data
The data reconstruction unit for managing device executes initialization operation according to load distribution allocation list.
In the present embodiment, it when data distribution at most a data processor will be met, needs respectively to match load distribution
It sets table and the meeting in header file of multiple data processors is written, data processor, can be from symbol when processing meets data
It closes and reads load distribution allocation list in header file, learn current to meet data in original meeting in data be how to divide
Match, the data reconstruction unit of data processor executes initialization operation according to load distribution allocation list, can in order to it is subsequent into
The whole image reconstruction of row.
According to above-mentioned load-balancing method, the embodiment of the present invention also provides a kind of SiteServer LBS, just loads below equal
The embodiment of balance system is described in detail.
It is shown in Figure 5, it is the structural schematic diagram of the SiteServer LBS of one embodiment of the invention.In the embodiment
SiteServer LBS includes:
Distribute allocation list matching unit 310, for obtaining PET scan agreement, according to the type matching phase of PET scan agreement
The load distribution allocation list answered；
Distribute allocation list issuance unit 320, for load distribution allocation list to be issued to data forwarding plate, wherein load
Distribution allocation list is used to indicate data forwarding plate and meets at most a data processor of data distribution for what PET scan obtained.
In the present embodiment, SiteServer LBS includes bill under distribution allocation list matching unit 310 and distribution allocation list
Member 320, before PET device executes scanning, distribution allocation list matching unit 310 obtains PET scan agreement, for different right
As the PET scan agreement that, different scanning needs is different, corresponding load distribution can be matched using the type of PET scan agreement
Allocation list distributes allocation list issuance unit 320 for load distribution allocation list and is issued to data forwarding plate, and data forwarding plate can obtain
It takes what PET scan obtained to meet data, at most a data processor of data distribution will be met according to load distribution allocation list and carried out
Processing is realized and meets the parallel computations of data, and load distribution allocation list and the type of PET scan agreement match, can be with
The data forwarding mechanism for needing to realize multiplicity for different objects, different scanning, makes data path load balancing, data is avoided to lose
It loses, improves the homogeneity of reconstruction image after meeting data processing.
In one embodiment, distribution allocation list matching unit 310 is in the type matching phase according to the PET scan agreement
Before the load distribution allocation list answered, load distribution allocation list is generated according to the activity distributed intelligence of sweep object.
In one embodiment, distribution allocation list matching unit 310 obtains PET scan when PET scan object is patient
When patient position, according to position adjust load distribution allocation list.
The SiteServer LBS of the embodiment of the present invention is corresponding with above-mentioned load-balancing method, in above-mentioned load-balancing method
Embodiment illustrate technical characteristic and its advantages suitable for the embodiment of SiteServer LBS.
According to above-mentioned load-balancing method, the embodiment of the present invention also provides another SiteServer LBS, just another below
The embodiment of kind SiteServer LBS is described in detail.
It is shown in Figure 6, it is the structural schematic diagram of the SiteServer LBS of one embodiment of the invention.In the embodiment
SiteServer LBS includes:
Distribute allocation list receiving unit 410, for receiving load distribution allocation list, wherein load distribution allocation list and PET
The type of scan protocols matches；
Data acquisition Dispatching Unit 420 meets data for obtain PET scan, will be accorded with according to load distribution allocation list
Close at most a data processor of data distribution.
In the present embodiment, SiteServer LBS includes distribution allocation list receiving unit 410 and data acquisition Dispatching Unit
420, before PET device executes scanning, distribution allocation list receiving unit 410 receives load distribution allocation list, for different right
As the PET scan agreement that, different scanning needs is different, corresponding load distribution can be matched using the type of PET scan agreement
Allocation list, data acquisition Dispatching Unit 420 obtain PET scan obtain meet data after, can be configured according to load distribution
Table will meet at most a data processor of data distribution and handle, and realize the parallel computation for meeting data, and load distribution
Allocation list and the type of PET scan agreement match, and can need to realize that the data of multiplicity turn for different objects, different scanning
Hair mechanism makes data path load balancing, avoids loss of data, improves the homogeneity of reconstruction image after meeting data processing.
In one embodiment, data acquisition Dispatching Unit 420 is also used to that load distribution allocation list is written respectively multiple
Data processor meets in header file, wherein the data reconstruction unit of data processor is according to load distribution allocation list
Execute initialization operation.
The SiteServer LBS of the embodiment of the present invention is corresponding with above-mentioned load-balancing method, in above-mentioned load-balancing method
Embodiment illustrate technical characteristic and its advantages suitable for the embodiment of SiteServer LBS.
According to above-mentioned load-balancing method and system, the embodiment of the present invention also provides a kind of readable storage medium storing program for executing, system control
Device and load-balancing device processed.
A kind of readable storage medium storing program for executing, is stored thereon with executable program, realizes when executable code processor executes
The step of load-balancing method stated.
Above-mentioned readable storage medium storing program for executing may be implemented to execute scanning in PET device by the executable program that it is stored
Before, PET scan agreement is obtained, the PET scan agreement needed for different objects, different scanning is different, utilizes PET scan agreement
Type can match corresponding load distribution allocation list, load distribution allocation list is issued to data forwarding plate, data forwarding
What the available PET scan of plate obtained meets data, will be met at most a data of data distribution according to load distribution allocation list
Reason device is handled, and realizes the parallel computation for meeting data, and the type phase of load distribution allocation list and PET scan agreement
Match, can need to realize the data forwarding mechanism of multiplicity for different objects, different scanning, make data path load balancing, keep away
Exempt from loss of data, improves the homogeneity of reconstruction image after meeting data processing.
As shown in fig. 7, a kind of system controller, system controller are connect with data forwarding plate, data forwarding plate respectively with
Multiple data processor connections；
System controller obtains PET scan agreement, is configured according to the corresponding load distribution of the type matching of PET scan agreement
Load distribution allocation list is issued to data forwarding plate by table；
Data forwarding plate acquisition PET scan meets data, will meet data distribution at most according to load distribution allocation list
A data processor.
As shown in figure 8, a kind of load-balancing device, including data symbols plywood and above-mentioned system controller, data forwarding
Plate, multiple data processors；
Data symbols plywood is used to meet operation to the single event execution of PET scan, and generation meets data, and is sent to data
Conversion board.
Above-mentioned system controller and load-balancing device, before PET device executes scanning, system controller is obtained
PET scan agreement, the PET scan agreement needed for different objects, different scanning is different, utilizes the type of PET scan agreement
Corresponding load distribution allocation list can be matched, load distribution allocation list is issued to data forwarding plate, data forwarding plate can be with
Obtain that PET scan obtains from data symbols plywood meets data, will meet data distribution to multiple according to load distribution allocation list
Data processor is handled, and realizes the parallel computation for meeting data, and the class of load distribution allocation list and PET scan agreement
Type matches, and can need to realize the data forwarding mechanism of multiplicity for different objects, different scanning, keep data path load equal
Weighing apparatus avoids loss of data, improves the homogeneity of reconstruction image after meeting data processing.
Those of ordinary skill in the art will appreciate that realizing that above-described embodiment is used for whole or portion in load-balancing method
Split flow is relevant hardware can be instructed to complete by computer program, and program can be stored in a non-volatile meter
In calculation machine read/write memory medium, in embodiment, which be can be stored in the storage medium of computer system, and by the meter
At least one processor in calculation machine system executes, and includes the process such as the embodiment of above-mentioned load-balancing method with realization.Its
In, storage medium can be magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random access memory
(Random Access Memory, RAM) etc..
In one embodiment, load-balancing method can be applied to the PET medical imaging devices of long axial direction, PET medicine
Imaging device has detector, LCC (front end data meets plate), DSW (data forwarding plate), data processor and Host (system
Controller) etc..
As shown in figure 9, LCC meets operation to the single event execution from different crystal section, generation is sent after meeting data
To DSW；Meet operating efficiency to improve, LCC can be multiple, and not can configure and axial crystal section that each LCC is responsible is
Fixed.
DSW can do secondary distribution to data are met according to data source is met.Preferably to reach different data processor
Load balancing, the bottom distribution mechanisms of DSW be support it is configurable, before PET scan, system controller basis first
PET scan protocol type determines scanning scene, determines that the distribution in source, configuration match optimal with source distribution according to scanning scene
Distribution policy, and be issued to DSW plate.After scanning starts, DSW distributes to data work is met, transmits according to data source is met
It is handled to corresponding data processor.
In PET device, crystal is provided on detector, for receiving the light of high-energy during carrying out PET scan
Subsignal, and it is translated into the visible light signal of low energy；In the section perpendicular to PET device axial direction, detector rings around
Setting；The crystal of detector on circumferential directions multiple in the axial direction forms crystal section, corresponding LCC.
As shown in Figure 10, in PET scan, scanning the distribution in source in scene is non-uniform in the axial direction, therefore different
The data that crystal section receives have very big difference.Therefore it needs to make data optimization distribution, data processor can be reconstruction
Machine etc..
Scanning scene can have heart muscle perfusion scene, body scan scene, die body scanning etc..
In MPI heart muscle perfusion scene, radionuclide halflife is shorter, and thorax abdomen activity can be very high, therefore this part
The data of crystal section will be distributed to multiple data processors as far as possible.
Such as FDG (fluorodeoxyglucose) body scan scene in Figure 10, bladder gathers a large amount of activity, therefore this part
Data need to be distributed to multiple data processors as far as possible.
By taking entire patient is scanned as an example, activity is mainly distributed on above the waist, and especially bladder and head can be high intake portions,
If according to fixed configurations, necessarily cause perivesical to meet data very high, concentrate on one or several reconstruction machines too much
On, so on the one hand this Part way is caused network or hard disk IO to lose data, is influenced reconstruction quality due to load excessive；Separately
On the one hand since PET is redeveloped into 3D iterative reconstruction algorithm, after each iteration needs all reconstruction machines to complete various reconstruction tasks, then
Enter next iteration cycle together, reconstruction performance is determined by most slow reconstruction machine, can promote whole weight by load balancing
Build performance.It is different that potential difference is put additionally, due to patient, and it is uncertain to will lead to a foot direction, and when data forwarding is also required to consider.
In addition such as die body tests special screne, and source is very short, and only converges at partial region, due to scan protocols and die body
Pendulum position be it is fixed, more reasonable load balancing can be executed according to these prior informations and measured.
The format of the configuration information of load distribution allocation list is exactly each computer (being in fact exactly DSW output Port) at present
The crystal section of configuration alignment processing meets data.
Specifically, as shown in figure 11, system controller can select according to the demand of user NECR/MPI/WB etc. different
Scan protocols match optimal load balancing allocation strategy according to the scan protocols of selection, then judge whether to carry out patient
Scanning adjusts load balancing allocation strategy according to position information if so, obtaining the position information of patient, if it is not, indicating to be pair
Die body is detected, and the specific protocol for being directed to die body is obtained；After this, the corresponding LUT of agreement (configuration look-up table) is obtained, it will
It is issued to DSW, and DSW executes the distribution operation of data, and LUT information write-in DSW is met data head text before distribution
It is each to rebuild the machine-readable load point for taking and meeting in header file after DSW will meet data distribution to multiple reconstruction machines in part
Allocation list is sent out, the data reconstruction unit in reconstruction machine executes initialization operation based on load distribution allocation list, so as to subsequent
Data correctly can be parsed and applied when image reconstruction.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Those of ordinary skill in the art will appreciate that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program.The program can store in read/write memory medium.The program exists
When execution, include the steps that described in the above method.The storage medium, comprising: ROM/RAM, magnetic disk, CD etc..
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of load-balancing method, which comprises the following steps:
The type for obtaining PET scan agreement, according to the corresponding load distribution allocation list of the type matching of the PET scan agreement；
The load distribution allocation list is issued to data forwarding plate, wherein the load distribution allocation list is used to indicate described
Data forwarding plate meets at most a data processor of data distribution for what PET scan obtained.
2. load-balancing method according to claim 1, which is characterized in that the type according to the PET scan agreement
It is further comprising the steps of before the step of with corresponding load distribution allocation list:
The load distribution allocation list is generated according to the activity distributed intelligence of sweep object.
3. load-balancing method according to claim 1, which is characterized in that the type according to the PET scan agreement
It is further comprising the steps of after the step of with corresponding load distribution allocation list:
When PET scan object is patient, the position of patient when obtaining PET scan, according to the position adjustment load point
Send out allocation list.
4. a kind of load-balancing method, which comprises the following steps:
Receive load distribution allocation list, wherein the load distribution allocation list and the type of PET scan agreement match；
Obtain PET scan meets data, meets at most a data of data distribution for described according to the load distribution allocation list
Processor.
5. load-balancing method according to claim 4, which is characterized in that it is described will be described according to the load distribution allocation list
Meet data distribution at most a data processor the step of it is further comprising the steps of:
The meeting in header file of multiple data processors is written into the load distribution allocation list respectively, wherein institute
The data reconstruction unit for stating data processor executes initialization operation according to the load distribution allocation list.
6. a kind of SiteServer LBS characterized by comprising
Distribute allocation list matching unit, for obtaining PET scan agreement, the type matching according to the PET scan agreement is corresponding
Load distribution allocation list；
Distribute allocation list issuance unit, for the load distribution allocation list to be issued to data forwarding plate, wherein the load
Distribution allocation list is used to indicate the data forwarding plate and meets at most a data processor of data distribution for what PET scan obtained.
7. a kind of SiteServer LBS characterized by comprising
Distribute allocation list receiving unit, for receiving load distribution allocation list, wherein the load distribution allocation list is swept with PET
The type for retouching agreement matches；
Data acquisition Dispatching Unit meets data for obtain PET scan, according to the load distribution allocation list by the symbol
Close at most a data processor of data distribution.
8. a kind of readable storage medium storing program for executing, is stored thereon with executable program, which is characterized in that the executable code processor
The step of load-balancing method described in any one of claim 1 to 5 is realized when execution.
9. a kind of system controller, which is characterized in that the system controller is connect with data forwarding plate, the data forwarding plate
It is connect respectively with multiple data processors；
The system controller obtains PET scan agreement, according to the corresponding load distribution of type matching of the PET scan agreement
The load distribution allocation list is issued to data forwarding plate by allocation list；
The data forwarding plate acquisition PET scan meets data, meets data for described according to the load distribution allocation list
It is distributed to multiple data processors.
10. a kind of load-balancing device, which is characterized in that including data symbols plywood and control system as claimed in claim 9
Device, the data forwarding plate, multiple data processors；
The data symbols plywood is used to meet operation to the single event execution of PET scan, and generation meets data, and is sent to described
Data forwarding plate.
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