CN107527134A - A kind of distribution transformer state evaluating method and device based on big data - Google Patents
A kind of distribution transformer state evaluating method and device based on big data Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of distribution transformer state evaluating method and device based on big data.Methods described includes the historical data for obtaining distribution transformer；If the historical data has missing, the historical data is handled, to obtain history processing data；According to the history processing data, the setting data weighting corresponding with the distribution transformer.Distribution transformer state evaluating method provided in an embodiment of the present invention obtains the data weighting with the distribution transformer according to the historical data of distribution transformer, so as to obtain the real-time status of the distribution transformer according to the Real-time Monitoring Data, it can realize and distribution transformer failure is given warning in advance, so as to improve the safety and reliability of distribution transformer.
Description
Technical field
The present embodiments relate to technical field of power systems, more particularly to a kind of distribution transformer shape based on big data
State appraisal procedure and device.
Background technology
Transformer is one of equipment the most key in power system, improves the fortune of transformer, particularly high-power transformer
Row reliability, no matter for whole power network safe and reliable operation, or reduce operation of power networks cost all have it is highly important
Meaning.Distribution transformer is the important component of power distribution network, and the fast-developing operation to distribution transformer of social economy can
There is higher requirement by property and security.
The continuous popularization and application of system such as the continuous development of intelligent distribution network in recent years, power distribution automation, power information collection,
But relatively low data analysis and process ability make it that scientific research personnel is difficult to excavate more valuable information therefrom.Traditional matches somebody with somebody
There is much the evaluation method of application, in terms of the assessment of piezoelectric transformer running status such as Field Using Fuzzy Comprehensive Assessment, analytic hierarchy process (AHP), nerve
Network technique etc..
These methods have higher practicality, but wherein the influence of human factor is than more serious, and different comment
The keynote message that valency method protrudes is different, and these factors are there is a possibility that error occurs in evaluation result, and prior art mainly uses
Be two methods of periodic detection and fault detect, the issuable failure of distribution transformer can not be accomplished to give warning in advance.
The content of the invention
The embodiment of the present invention provides a kind of distribution transformer state evaluating method and device based on big data, to solve
It is unreliable to power transformer detecting method in the prior art and the problem of can not give warning in advance.
In a first aspect, the embodiments of the invention provide a kind of distribution transformer state evaluating method based on big data, bag
Include：
Obtain the historical data of distribution transformer；
If the historical data has missing, the historical data is handled, to obtain history processing data；
According to the history processing data, the setting data weighting corresponding with the distribution transformer.
Second aspect, the embodiments of the invention provide a kind of distribution transformer state evaluation device based on big data, bag
Include：
Receiving module, for obtaining the historical data of distribution transformer；
Data processing module is connected with the receiving module and state estimation module, if having for the historical data scarce
Lose, then the historical data is handled, to obtain history processing data；
The state estimation module, for corresponding with the distribution transformer according to the history processing data, setting
Data weighting.
The third aspect, the embodiments of the invention provide a kind of electronic equipment, including memory and processor, the processor
Mutual communication is completed by bus with the memory；The memory storage has can be by the program of the computing device
Instruction, the processor call described program instruction to be able to carry out above-mentioned method.
Fourth aspect, the embodiments of the invention provide a kind of computer-readable recording medium, is stored thereon with computer journey
Sequence, it is characterised in that the computer program realizes above-mentioned method when being executed by processor.
Distribution transformer state evaluating method and device provided in an embodiment of the present invention based on big data, by described
Distribution transformer historical data sets data weighting corresponding with the distribution transformer, to assess the shape of the distribution transformer
State, it can realize and distribution transformer failure is given warning in advance, important evidence is provided for the maintenance decision of transformer, can avoid counting
Blindness existing for drawing maintenance, is reduced to the human and material resources demand required for Repair of Transformer, so as to produce significant society
Benefit and economic benefit, and improve the safety and reliability of distribution transformer.
Brief description of the drawings
Fig. 1 is the distribution transformer state evaluating method schematic flow sheet based on big data of the embodiment of the present invention；
Fig. 2 is another distribution transformer state evaluating method schematic flow sheet based on big data of the embodiment of the present invention；
Fig. 3 is the distribution transformer state evaluation device structural representation based on big data according to the embodiment of the present invention；
Fig. 4 is another distribution transformer state evaluation device structural representation based on big data according to the embodiment of the present invention
Figure；
Fig. 5 is the electronic devices structure schematic diagram of the embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 be the embodiment of the present invention the distribution transformer state evaluating method schematic flow sheet based on big data, such as Fig. 1
Shown, methods described includes：
Step S01, the historical data of distribution transformer is obtained；
In existing power system in order to power system in all devices be monitored, the letter in grid service device
The data that breath acquisition server can be run to all devices carry out taken at regular intervals and are saved in the memory cell of grid service device, with
It is standby to transfer corresponding data when needing.The memory cell that methods described of the embodiment of the present invention just needs to first pass through grid service device obtains
The historical data for taking the distribution transformer to preserve, such as the load factor of the distribution transformer, tri-phase unbalance factor, voltage,
The historical data such as electric current and operation curve.Certainly the historical data that specifically obtains can according to the problem of being actually needed monitoring and
The demand of equipment where the distribution transformer determines.
If step S02, described historical data has missing, the historical data is handled, to obtain history processing
Data；
It can be produced in equipment operating data gatherer process during grid service device information acquisition system is to power system a small amount of
Empty data or wrong data, and it is also possible in follow-up storing process phenomena such as loss of data or copy errors occur,
Now just need to reject such historical data according to operation curve and actual conditions the data and completion sky number of apparent error
According to, such as the shortage of data at moment today, can be directly using the data at a few days ago this moment, or today can also be used
Data before and after this moment or a few days ago this time data are weighted average mode and obtained.The method of specific completion data
Have a lot, repeat no more here.
Step S03, according to the history processing data, the setting data weighting corresponding with the distribution transformer.
By the processing to the historical data, the accurate historical data of the distribution transformer can be reduced substantially.Institute
So that the history run state change process of the distribution transformer can be reduced according to the history processing data, can analyze
Go out to cause the main reason for being broken down in the distribution transformer historical data, and failure occur before and after each ginseng in data
Several situations of change.Each parameter can be obtained by the analysis to each parameter to run well to the distribution transformer
To the proportion of effect, and design the data weighting corresponding with the distribution transformer.
Wherein because the physical significance representated by each parameter and unit are different, so in order to allow follow-up comment
It is more convenient, it is necessary to be standardized to each parameter to estimate operation, handles as normalizing parameter, so as to obtain normalized number
According to.For example, the standardized data of distribution transformer is A={ a1, a2... ..., ai, wherein a1, a2... ..., aiGeneration respectively
I different normalizing parameters of table, a1For the normalizing parameter of load factor, a2The normalizing parameter ... ... of tri-phase unbalance factor,
aiFor the normalizing parameter of voltage, can obtain matching somebody with somebody with described by the comparative analysis to place normalizing parameter in historical data
The corresponding data weighting B={ b of piezoelectric transformer1, b2... ..., bi, wherein the b1, b2... ..., biRepresent respectively with i not
I corresponding parameters weighting of same normalizing parameter, b1For the parameters weighting of load factor, b2The parameter power of tri-phase unbalance factor
Weight ... ..., biFor the parameters weighting of voltage.
For different distribution transformers, because its effect played in power system is different or use demand
Difference, so also having corresponding difference for the data weighting obtained by different distribution transformers.
The embodiment of the present invention can be obtained and the distribution transformer phase by the analysis to distribution transformer historical data
Corresponding data weighting, different distribution transformers can be made to possess the data weighting to match with itself historical data, so as to
More accurate accurate evaluation can must be carried out to the state of the distribution transformer, to improve the security of the power system and can
By property.
Fig. 2 is another distribution transformer state evaluating method schematic flow sheet based on big data of the embodiment of the present invention,
As shown in Fig. 2 methods described also includes after step S03：
Step S04, the Real-time Monitoring Data of the distribution transformer is received；
After data weighting corresponding with the distribution transformer in obtaining above-described embodiment, it is possible to start to institute
The real-time running state for stating distribution transformer is assessed.Now, it is possible to which reception is adopted by the information in the grid service device
The Real-time Monitoring Data for the distribution transformer that collecting system collects.
Step S05, if it is determined that the Real-time Monitoring Data has missing, then Real-time Monitoring Data is repaired, so as to obtain
Take data to be assessed；
Because grid service device information acquisition system is in distribution transformer service data gatherer process described in power system
The missing or mistake of a small amount of parameter can be produced, now just needs to reject bright such parameter according to operation curve and actual conditions
Show the parameter and completion sky parameter of mistake, such as the tri-phase unbalance factor missing in the Real-time Monitoring Data, can directly adopt
It is weighted with the tri-phase unbalance factor at a few days ago this moment, or the tri-phase unbalance factor collected several times before can also using
Average mode obtains.The method of specific completion parameter has a lot, repeats no more here.Parameter after completion constitutes
The data to be assessed of the distribution transformer.
Step S06, weighed according to the data to be assessed and the data corresponding with the distribution transformer to prestore
Weight, obtain the comprehensive score of the distribution transformer；
According to the data weighting corresponding with the distribution transformer obtained before, and after treatment to be assessed
Data, the comprehensive score of the distribution transformer can be obtained by calculating., equally will be to described of course for the convenience of calculating
Data to be assessed are standardized to remove influence caused by physical significance and unit between all parameters, so as to obtain
Standardization data to be assessed.Described computational methods have many kinds, for example, the data weighting is B={ b1, b2... ...,
bi, the standardization data to be assessed are A '={ a1', a2' ... ..., ai', then the comprehensive score is：
A ' B=a1’*b1+a2’*b2+……+ai’*bi。
Above-mentioned computational methods are that a citing is not unique method, can be designed completely according to the needs of itself
The computational methods being more suitable for.
Step S07, according to the comprehensive score and the state threshold scope to prestore, the state of the distribution transformer is provided
Signal.
The obtained comprehensive score can provide specific Condition evaluation according to the state threshold scope to prestore, wherein institute
Stating state threshold scope can be divided according to the needs of itself.A kind of wherein the simplest dividing mode, is exactly only
A threshold value of warning is set, the status signal of early warning is issued by after the comprehensive score is up to or over threshold value of warning, with
Alert the distribution transformer and failure risk be present.
Of course for the running status that can must more comprehensively understand the distribution transformer, a status signal is only divided
It is far from being enough, it is possible to multiple state threshold scopes, such as following table are set according to specific detection demand：
It is as shown in the table, and further, the status signal includes status indicator and the control corresponding with the status indicator
System instruction.
When the comprehensive score meets some state threshold scope therein, corresponding status signal will be produced, its
Described in status signal include the status indicator and control instruction corresponding with the state threshold scope.For example, the synthesis
Score [s3, s4) in the range of, then the status indicator that caused status signal includes is III, and control instruction for action 3.
Wherein specific state threshold scope and corresponding status indicator and control instruction can be entered according to the actual needs
Row adjustment.
Further, the control operation corresponding with the control instruction is performed according to the control instruction.
Each control instruction can have corresponding control operation, can send to adjust to the distribution transformer
The instruction of some parameter or the instruction that some parameter of adjustment is sent to the equipment related to the distribution transformer.Example
Such as, when the control instruction included in the status signal obtained according to the comprehensive score for action 3, specially reduce the distribution
The magnitude of voltage of transformer.Specific operating process can be set according to the demand of reality, be repeated no more here.
The embodiment of the present invention, can be to the distribution transformer by the data weighting of the obtained distribution transformer
Real-time Monitoring Data is calculated to obtain comprehensive score, and the real-time status of the distribution transformer is provided further according to comprehensive score
Signal simultaneously can carry out specific control operation, and the state of the distribution transformer must be monitored so as to more accurate, and carries
Before send fault pre-alarming, to improve the safety and reliability of power system.
Fig. 3 is the distribution transformer state evaluation device structural representation based on big data according to the embodiment of the present invention,
As shown in figure 3, described device includes：Receiving module 10, data processing module 11 and state estimation module 12, wherein,
The receiving module 10 is used for the historical data for obtaining distribution transformer；The data processing module 11 connects with described
Receive module 10 with the state estimation module 12 to be connected, if having missing for the historical data, the historical data is entered
Row processing, to obtain history processing data；The state estimation module 12, for according to the history processing data, setting with
The corresponding data weighting of the distribution transformer.
Specifically, all devices are monitored in existing power system in order to power system, grid service
The data that information collection server in device can be run to all devices carry out taken at regular intervals and are saved in depositing for grid service device
Storage unit, in case transferring corresponding data when needing.Methods described of the embodiment of the present invention is just needed first by the receiving module 10
The historical data preserved by the memory cell acquisition distribution transformer of grid service device, such as the distribution transformer
The historical datas such as load factor, tri-phase unbalance factor, voltage, electric current and operation curve.Certainly the historical data that specifically obtains can be with
Determined according to the demand of equipment the problem of being actually needed monitoring and where the distribution transformer.Then by the history number
According to being sent to the data processing module 11.
It can be produced in equipment operating data gatherer process during grid service device information acquisition system is to power system a small amount of
Empty data or wrong data, and it is also possible in follow-up storing process phenomena such as loss of data or copy errors occur,
The data processing module 11 is now just needed, according to operation curve and actual conditions, to reject apparent error to such historical data
Data and completion sky data.The method of specific completion data has a lot, repeats no more here.Then the data processing mould
The history processing data can be sent to the state estimation module 12 by block 11.
By the processing to the historical data, the accurate historical data of the distribution transformer can be reduced substantially.Institute
The history run shape of the distribution transformer can be reduced according to the history processing data with the state estimation module 12
State change procedure, it can analyze and cause the main reason for being broken down in the distribution transformer historical data, and failure
Before and after generation in data parameters situation of change.Each parameter can be obtained by the analysis to each parameter to described to match somebody with somebody
The played a role proportion of piezoelectric transformer normal operation, and design the data weighting corresponding with the distribution transformer.
Wherein because the physical significance representated by each parameter and unit are different, so in order to allow follow-up comment
It is more convenient, it is necessary to be standardized to each parameter to estimate operation, handles as normalizing parameter, so as to obtain normalized number
According to.And corresponding data weighting is obtained according to the normal data.
For different distribution transformers, because its effect played in power system is different or use demand
Difference, so also having corresponding difference for the data weighting obtained by different distribution transformers.
Device provided in an embodiment of the present invention is used to perform the above method, its function with specific reference to above method embodiment,
Its specific method flow repeats no more here.
The embodiment of the present invention can be obtained and the distribution transformer phase by the analysis to distribution transformer historical data
Corresponding data weighting, different distribution transformers can be made to possess the data weighting to match with itself historical data, so as to
More accurate accurate evaluation can must be carried out to the state of the distribution transformer, to improve the security of the power system and can
By property.
Fig. 4 is another distribution transformer state evaluation device structural representation based on big data according to the embodiment of the present invention
Figure, as shown in figure 4, described device includes：Receiving module 10, data processing module 11, state estimation module 12 and warning module
13, wherein,
The receiving module 10 is additionally operable to receive the Real-time Monitoring Data of the distribution transformer；The data processing module
11 are additionally operable to if it is determined that the Real-time Monitoring Data has missing, then repair Real-time Monitoring Data, to be assessed so as to obtain
Data；The state estimation module 12, it is additionally operable to according to the data to be assessed and prestores relative with the distribution transformer
The data weighting answered, obtain the comprehensive score of the distribution transformer；The warning module 13, for according to the synthesis
Score and the state threshold scope to prestore, provide the status signal of the distribution transformer.
Specifically, after data weighting corresponding with the distribution transformer in obtaining above-described embodiment, it is possible to
Start to assess the real-time running state of the distribution transformer.Now, the information gathering system in the grid service device
The Real-time Monitoring Data of the distribution transformer collected can be sent to the receiving module 10 by system.And the reception mould
The Real-time Monitoring Data is then forwarded to the data processing module 11 by block 10.
Because grid service device information acquisition system is in distribution transformer service data gatherer process described in power system
The missing or mistake of a small amount of parameter can be produced, now just needs the data processing module 11 to such parameter according to operation curve
With actual conditions, reject apparent error parameter and completion sky parameter.The method of specific completion parameter has a lot, here no longer
Repeat.Parameter after completion constitutes the data to be assessed of the distribution transformer.The data processing module 11 is by institute
State data to be assessed and be sent to the state estimation module 12.
The state estimation module 12 according to the data weighting corresponding with the distribution transformer obtained before, and
Data to be assessed after treatment, the comprehensive score of the distribution transformer can be obtained by calculating.Of course for calculating
Convenience, equally the data to be assessed are standardized with the physical significance removing all parameters and unit institute
The influence brought, so as to obtain standardization data to be assessed.Described computational methods have many kinds, can be according to the need of itself
To design.The comprehensive score can be sent to the warning module 13 by the state estimation module 12.
The obtained comprehensive score can provide specifically according to the state threshold scope that the warning module 13 prestores
Condition evaluation, wherein the state threshold scope can be divided according to the needs of itself.It is wherein the simplest a kind of
Dividing mode, it is exactly only to set a threshold value of warning, is issued by after the comprehensive score is up to or over threshold value of warning pre-
Alert status signal, failure risk be present to alert the distribution transformer.
Of course for the running status that can must more comprehensively understand the distribution transformer, a status signal is only divided
It is far from being enough, it is possible to multiple state threshold scopes are set according to specific detection demand.
Further, the status signal includes status indicator and the control instruction corresponding with the status indicator.
When the comprehensive score meets some state threshold scope therein, the warning module 13 will produce accordingly
Status signal, wherein the status signal includes the status indicator and control instruction corresponding with the state threshold scope.
Wherein specific state threshold scope and corresponding status indicator and control instruction can be entered according to the actual needs
Row adjustment.
Further, described device is also connected including control module with the warning module 13, for according to the control
Instruction performs the control operation corresponding with the control instruction.
The status signal of acquisition can be sent to control module by the warning module 13, and the control module can be according to docking
The analysis of the control instruction included in the status signal being subject to performs corresponding control operation.Can be to the distribution transformer
Device, which sends the instruction for adjusting some parameter or sent to the equipment related to the distribution transformer, adjusts some parameter
Instruction.Specific operating process can be set according to the demand of reality, be repeated no more here.
Device provided in an embodiment of the present invention is used to perform the above method, its function with specific reference to above method embodiment,
Its specific method flow repeats no more here.
The embodiment of the present invention, can be to the distribution transformer by the data weighting of the obtained distribution transformer
Real-time Monitoring Data is calculated to obtain comprehensive score, and the real-time status of the distribution transformer is provided further according to comprehensive score
Signal simultaneously can carry out specific control operation, and the state of the distribution transformer must be monitored so as to more accurate, and carries
Before send fault pre-alarming, to improve the safety and reliability of power system.
Fig. 5 is the electronic devices structure schematic diagram of the embodiment of the present invention.
Send out shown in Fig. 5, the test equipment of the display device, including：Processor (processor) 601, memory
(memory) 602 and bus 603；
Wherein, the processor 601 and the memory 602 complete mutual communication by the bus 603；
The processor 601 is used to call the programmed instruction in the memory 602, to perform above-mentioned each method embodiment
The method provided, such as including：The setting power corresponding with the distribution transformer wants data；Obtain the distribution transformer
Status signal.
The present embodiment discloses a kind of computer program product, and the computer program product includes being stored in non-transient calculating
Computer program on machine readable storage medium storing program for executing, the computer program include programmed instruction, when described program instruction is calculated
When machine performs, computer is able to carry out the method that above-mentioned each method embodiment is provided, such as including：Setting becomes with the distribution
The corresponding power of depressor wants data；Obtain the status signal of the distribution transformer.
The present embodiment provides a kind of non-transient computer readable storage medium storing program for executing, the non-transient computer readable storage medium storing program for executing
Computer instruction is stored, the computer instruction makes the computer perform the method that above-mentioned each method embodiment is provided, example
Such as include：The setting power corresponding with the distribution transformer wants data；Obtain the status signal of the distribution transformer.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program
Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
The embodiments such as the test equipment of display device described above are only schematical, wherein described as separation
The unit of part description can be or may not be it is physically separate, can be as the part that unit is shown or
It can not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Border needs to select some or all of module therein to realize the purpose of this embodiment scheme.Those of ordinary skill in the art
In the case where not paying performing creative labour, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
The part that technical scheme substantially in other words contributes to prior art is stated to embody in the form of software product, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Make to cause a computer equipment (can be personal computer, server, or network equipment etc.) to perform each implementation
Method described in some parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of distribution transformer state evaluating method based on big data, it is characterised in that methods described includes：
Obtain the historical data of distribution transformer；
If the historical data has missing, the historical data is handled, to obtain history processing data；
According to the history processing data, the setting data weighting corresponding with the distribution transformer.
2. according to the method for claim 1, it is characterised in that methods described also includes：
Receive the Real-time Monitoring Data of the distribution transformer；
If it is determined that the Real-time Monitoring Data has missing, then data to be assessed are repaired, so as to obtain data to be assessed；
According to the data to be assessed and the data weighting corresponding with the distribution transformer to prestore, match somebody with somebody described in acquisition
The comprehensive score of piezoelectric transformer；
According to the comprehensive score and the state threshold scope that prestores, the status signal of the distribution transformer is provided.
3. according to the method for claim 2, it is characterised in that the status signal include status indicator and with the state
Identify corresponding control instruction.
4. according to the method for claim 3, it is characterised in that methods described also includes：
The control operation corresponding with the control instruction is performed according to the control instruction.
5. a kind of distribution transformer state evaluation device based on big data, it is characterised in that described device includes：
Receiving module, for obtaining the historical data of distribution transformer；
Data processing module is connected with the receiving module and state estimation module, if having missing for the historical data,
The historical data is handled, to obtain history processing data；
The state estimation module, for according to the history processing data, the setting number corresponding with the distribution transformer
According to weight.
6. device according to claim 5, it is characterised in that described device also includes fault pre-alarming module and the state
Evaluation module is connected, wherein,
The receiving module, it is additionally operable to receive the Real-time Monitoring Data of the distribution transformer；
The data processing module, it is additionally operable to if it is determined that the Real-time Monitoring Data has missing, then repair data to be assessed
Mend, so as to obtain data to be assessed；
The state estimation module, it is additionally operable to according to the data to be assessed and prestores corresponding with the distribution transformer
The data weighting, obtain the comprehensive score of the distribution transformer；
The warning module, for according to the comprehensive score and the state threshold scope to prestore, providing the distribution transformer
Status signal.
7. device according to claim 6, it is characterised in that the status signal include status indicator and with the state
Identify corresponding control instruction.
8. device according to claim 7, it is characterised in that described device also includes control module and the warning module
It is connected, for performing the control operation corresponding with the control instruction according to the control instruction.
9. a kind of electronic equipment, it is characterised in that including memory and processor, the processor and the memory pass through total
Line completes mutual communication；The memory storage has and can adjusted by the programmed instruction of the computing device, the processor
The method as described in Claims 1-4 is any is able to carry out with described program instruction.
10. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program quilt
The method as described in Claims 1-4 is any is realized during computing device.
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Application publication date: 20171229 |