CN106683258A - Magnetic amplitude compensation method and system - Google Patents
Magnetic amplitude compensation method and system Download PDFInfo
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- CN106683258A CN106683258A CN201611144418.5A CN201611144418A CN106683258A CN 106683258 A CN106683258 A CN 106683258A CN 201611144418 A CN201611144418 A CN 201611144418A CN 106683258 A CN106683258 A CN 106683258A
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- Prior art keywords
- magnetic
- amplitude
- yoke distance
- magnetic amplitude
- yoke
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
Abstract
The invention belongs to the technical field of financial machines and tools, provides a magnetic amplitude compensation method and system and aims to problem that genuine notes are identified as counterfeit notes caused by the fact that magnetic data of the genuine notes collected by a magnetic sensor attenuate when magnetic interval is greater than a certain threshold range. The magnetic sensor collects magnetic amplitude of currently circulated notes, a magnetic interval detection device is added to measure the magnetic interval, and then the magnetic amplitude and measured corresponding magnetic interval are subjected to large-sample statistical analysis to acquire a relation model between magnetic attenuation amplitude and magnetic interval; in this way, magnetic amplitude data are compensated, or the magnetic interval is adjusted artificially in a targeted manner according to the relation model, and the problem of identifying the genuine notes as counterfeit notes in the prior art is solved efficiently.
Description
Technical field
The invention belongs to financial machine and tool technical field, more particularly to a kind of magnetic amplitude compensation method and system.
Background technology
At present assembly crewman is in gold such as cash inspecting machine, the paper money counter of magnetic sensor of the assembling with collection banknote magnetic amplitude
When melting equipment, for the distance (i.e. yoke distance) for gathering the magnetic sensor of banknote magnetic amplitude to banknote in currency examination passage
Judge whether properly often by the method for range estimation, especially new hand is difficult to hold yoke distance；On the other hand, financial machine and tool exists
Due to a variety of causes during use, yoke distance also can change.
When inventor has found which kind of reason more than whether causes yoke distance to be more than certain threshold range, magnetic can be caused to pass
There is the situation of decay in the magnetic data of the genuine notes that sensor is collected, and the magnetic data of decay and the magnetic data of counterfeit money occurs
It is much like, therefore genuine notes can be accredited as counterfeit money by financial machine and tool according to the magnetic data for collecting, and will so cause currency examination to be calculated
When authenticity of banknotes is differentiated, batch genuine notes are accredited as method the situation of counterfeit money by mistake for appearance.
The content of the invention
A kind of magnetic amplitude compensation method and system, it is intended to solve in prior art because yoke distance is more than certain threshold range
When, there is decay in the magnetic data of the genuine notes that magnetic sensor is collected, so as to genuine notes to be accredited as the problem of counterfeit money.
The first aspect of the embodiment of the present invention, there is provided a kind of magnetic amplitude compensation method, methods described includes：
When magnetic sensor gathers the magnetic amplitude of the banknote that current stream passes through, by between yoke distance detection device measurement magnetic
Away from；
Large sample statistics is carried out by the correspondence yoke distance to the magnetic amplitude and measurement, magnetic decay width is obtained
It is worth the relational model with the yoke distance；
If presently described yoke distance belongs to preset range, calculated according to the current magnetic amplitude of correspondence and the relational model
Go out magnetic amplitude after compensation.
The second aspect of the embodiment of the present invention, there is provided a kind of magnetic amplitude compensation method, methods described includes：
When magnetic sensor gathers the magnetic amplitude of the banknote that current stream passes through, by between yoke distance detection device measurement magnetic
Away from；
Large sample statistics is carried out by the correspondence yoke distance to the magnetic amplitude and measurement, magnetic decay width is obtained
It is worth and the relational model of the yoke distance, if presently described yoke distance belongs to preset range, according to the relational model, manually
Presently described yoke distance is adjusted.
The third aspect of the embodiment of the present invention, there is provided a kind of magnetic amplitude compensation system, the system includes：Magnetic transducing
Device, yoke distance detection device and the first computing device, first computing device includes statistical module and compensating module；
The magnetic sensor is used to gather the magnetic amplitude of the banknote that current stream passes through；
The yoke distance detection device is used to gather the same of the magnetic amplitude of the banknote that current stream passes through in magnetic sensor
When, measure yoke distance；
The statistical module is used to carry out large sample system by the correspondence yoke distance to the magnetic amplitude and measurement
Meter, obtains the relational model of magnetic decaying amplitudes and the yoke distance；
If the compensating module belongs to preset range for presently described yoke distance, according to the current magnetic amplitude of correspondence and
The relational model calculates magnetic amplitude after compensation.
The fourth aspect of the embodiment of the present invention, there is provided a kind of magnetic amplitude compensation system, the system includes：Magnetic transducing
Device, yoke distance detection device and the second computing device；
The magnetic sensor is used to gather the magnetic amplitude of the banknote that current stream passes through；
The yoke distance detection device is used to gather the same of the magnetic amplitude of the banknote that current stream passes through in magnetic sensor
When, measure yoke distance；
Second computing device is used to carry out full-page proof by the correspondence yoke distance to the magnetic amplitude and measurement
This statistics, obtains the relational model of magnetic decaying amplitudes and the yoke distance, if presently described yoke distance belongs to preset range,
According to the relational model, manually presently described yoke distance is adjusted.
The beneficial effect that exists compared with prior art of technical scheme that the present invention is provided is：Due to adopting in magnetic sensor
While collecting the magnetic amplitude of the banknote that current stream passes through, yoke distance detection device measurement yoke distance is increased, then by right
Magnetic amplitude and the corresponding yoke distance of measurement carry out large sample statistics, obtain the relational model of magnetic decaying amplitudes and yoke distance；
So magnetic amplitude data is compensated or according to relational model, it is artificial it is purposive, pointedly adjust yoke distance, it is high
Effect solves the problems, such as that genuine notes are accredited as into counterfeit money in prior art.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to embodiment or description of the prior art
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can be with according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the magnetic amplitude compensation method flowchart that one embodiment of the invention is provided；
Fig. 2 is the magnetic amplitude compensation method flowchart that another embodiment of the present invention is provided；
Fig. 3 is the magnetic amplitude compensation system structure diagram that another embodiment of the present invention is provided；
Fig. 4 is the magnetic amplitude compensation system structure diagram that another embodiment of the present invention is provided；
Fig. 5 is the magnetic amplitude compensation system structure diagram that another embodiment of the present invention is provided；
Fig. 6 is the magnetic amplitude compensation system structure diagram that another embodiment of the present invention is provided；
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.
In below describing, in order to illustrate rather than in order to limit, the explanation schematic diagram of many technical characteristics is given, so as to
Cut thoroughly and understand the embodiment of the present invention.However, it will be clear to one skilled in the art that in other realities without these details
Apply and can also realize in example the present invention.In other situations, the detailed description to well-known device and method is omitted, with
Exempt from unnecessary details and hinder description of the invention.
During in order to be more than certain threshold range due to yoke distance in effectively solving prior art, it is true that magnetic sensor is collected
There is decay in the magnetic data of paper money, so as to genuine notes to be accredited as the problem of counterfeit money.Magnetic amplitude provided in an embodiment of the present invention is mended
Compensation method includes：When magnetic sensor gathers the magnetic amplitude of the banknote that current stream passes through, measured by yoke distance detection device
Yoke distance；Large sample statistics is carried out by the correspondence yoke distance to the magnetic amplitude and measurement, magnetic decay width is obtained
It is worth the relational model with the yoke distance；If the yoke distance belongs to preset range, according to the magnetic amplitude and the pass
It is that model calculates magnetic amplitude after compensation, and then the magnetic amplitude to collecting is compensated.Carry out individually below in detail
Describe in detail bright.
Fig. 1 shows the magnetic amplitude compensation method flowchart that one embodiment of the invention is provided, and its executive agent can
To be magnetic amplitude compensation system, for example, magnetic amplitude compensation systematic difference program.For convenience of description, Fig. 1 illustrate only
The part related to the embodiment of the present invention, its process includes step S101, S102 and S103, and details are as follows：
S101, when magnetic sensor gathers the magnetic amplitude of the banknote that current stream passes through, is surveyed by yoke distance detection device
Amount yoke distance.
It should be noted that the banknote in the embodiment of the present invention can be the various valuable ticket that every country or area use
Certificate, here is not especially limited.
It should be noted that because the ad-hoc location (such as RMB magnetic security line) of banknote is made with special material,
Therefore the magnetic amplitude data for being collected with magnetic sensor is substantially different from the background magnetic amplitude of surrounding.
It should be noted that yoke distance refers to magnetic sensor to the distance of banknote in currency examination passage.
Optionally, yoke distance detection device is arranged on magnetic sensor so that current in magnetic sensor collection
During the magnetic amplitude of the banknote that stream passes through, yoke distance detection device can be convenient for measuring yoke distance, and staff can be direct
The current yoke distance that reading is measured.
Optionally, yoke distance detection device is that yoke distance is measured using electromagnetic characteristics, for example, can be infrared
Yoke distance detection device.
It should be noted that just gathering the magnetic amplitude of current banknote by a banknote per excessively stream, and measure yoke distance.
Optionally, using the magnetic amplitude of the current banknote for collecting yoke distance corresponding with the current banknote for measuring as
One record is stored.
Optionally, the yoke distance data for measuring can be transferred in the way of data frame format the terminal of record data or
Data base or disk etc., i.e., often stream passes through a banknote transmission primaries yoke distance data.
It should be noted that measuring yoke distance using yoke distance detection device, specifically quantify at ordinary times that assembly crewman can only
By estimating judgement deciding whether suitable yoke distance, so can with it is purposive, pointedly change yoke distance, it is also possible to
The quantitative relationship set up between magnetic amplitude and corresponding yoke distance.
S102, by the corresponding yoke distance to magnetic amplitude and measurement large sample statistics is carried out, and obtains magnetic decaying amplitudes
With the relational model of yoke distance.
It should be noted that due to banknote new and old, version not, the difference such as the degree of wear, even if two or multiple are same
The banknote (such as the 4th set 100 yuan of RMB) of type, in the case of the yoke distance identical for measuring, magnetic sensor collection
The magnetic amplitude for arriving is also different, therefore, say there is no one-to-one function between magnetic amplitude and yoke distance on stricti jurise
Relation, is certain " mapping " or " correspondence " therebetween.
Optionally, for the convenience of statistics, the corresponding yoke distance number of magnetic amplitude data and measurement is made into certain appropriate
Process, for example, if yoke distance is 0.1 millimeter, the magnetic amplitude for collecting have for 2300, have for 2200, what is had is
2100, then magnetic amplitude can be asked for average, take 2200 magnetic amplitudes when being 0.1 millimeter as yoke distance.Such magnetic
Just one-to-one functional relationship can be set up between amplitude and yoke distance, although yoke distance is a discrete variable, but is being carried out
When large sample amount is counted, can be approximately continuous, the final relational model therebetween set up is continuous functional relationship,
A smooth curve is shown as under two-dimensional coordinate system, after counting according to large sample, the substantially trend of the curve (is not excluded for
Fuctuation within a narrow range) for yoke distance be 0 when, magnetic amplitude maximum, for example, 10000, yoke distance be (0, x1] when, magnetic amplitude declines
Deceleration is less, and magnetic amplitude has and decays by a small margin；Yoke distance is (x1,x2] when, magnetic amplitude attenuation speed increases, magnetic width
Decaying by a relatively large margin occurs in value；Yoke distance is (x2,x3] when, the rate of decay of magnetic amplitude diminishes, and magnetic amplitude is slowly decayed to
Environmental background value.
It should be noted that it is aforementioned interval simply to illustrate that and illustrate, in fact, decay of the magnetic amplitude with yoke distance
Change is smooth curve, do not exist yoke distance for certain value when, the situation that magnetic amplitude is undergone mutation is less likely to be three
Change in interval, simply to illustrate that magnetic amplitude is to change with the slope of the attenuation curve of yoke distance, the attenuation curve
Similar to the situation of the right half of curve (i.e. abscissa is more than 0) of standard normal distribution.Aforementioned concrete data are merely illustrative, number
The not true experimental data of word.
In fact, carrying out large sample statistics by the corresponding yoke distance to magnetic amplitude and measurement, what is obtained is " magnetic width
Value and the relational model of yoke distance ", but be one with the change of yoke distance according to magnetic amplitude described above and dynamically decayed
Journey, and the magnetic amplitude for more importantly being compensated the needs for currently collecting be used for setting up the magnetic amplitude of model
It is distinguished, Given this 2 points, using the saying of " obtaining the relational model of magnetic decaying amplitudes and yoke distance ".
It should be noted that the magnetic amplitude and correspondence yoke distance for setting up model is by getting in many experiments,
Can also be accredited as genuine notes in the measurement data of the financial machine and tool of counterfeit money to get from a large amount of actual appearance, should be used for setting up mould
The magnetic amplitude and correspondence yoke distance of type are the sample datas for solving the problems, such as " genuine notes are accredited as into counterfeit money ".
It should be noted that magnetic decaying amplitudes can be aforesaid mapping or corresponding with the relational model of yoke distance,
It can also be certain functional relationship obtained according to preceding method.
S103, if current yoke distance belongs to preset range, calculates according to the current magnetic amplitude of correspondence and relational model
Magnetic amplitude after compensation.
It should be noted that the yoke distance in S103 belongs to preset range refers to yoke distance not within normal range, but
It is also in the range of it reasonably can compensate for, the yoke distance normal range of such as certain automatic teller machine is [0.5,1] centimetre, is closed
The scope that can compensate for of reason is [1,2] centimetre, if certain yoke distance is 5 centimetres, then for this automatic teller machine, 5 lis
Rice yoke distance is not within normal range, and 5 centimetres of yoke distance is not also in the range of it rationally can compensate for, can for this kind of situation
By yoke distance is manually adjusted, to make yoke distance be maintained at normal range.Normal range, restrictive condition was：In this normal range
When, the magnetic data that magnetic sensor is collected is so that genuine notes to be accredited as currency examination algorithm the scope of genuine notes.Aforementioned concrete data
It is merely illustrative, the not true experimental data of numeral.
Optionally, " the compensation after compensation in magnetic amplitude is calculated according to the current magnetic amplitude of correspondence and relational model
The magnetic decaying amplitudes convolution that magnetic amplitude afterwards " is specifically asked for by current magnetic amplitude and using the relational model is obtained, example
Such as, current yoke distance is 1.5 centimetres, and when measuring 1.5 centimetres of yoke distances, it is 2500 to collect the current magnetic amplitude of correspondence, and
And in the relational model for obtaining 1.5 centimetres of substitution S102 steps, obtaining " the magnetic decaying amplitudes that relational model is asked for " is
2450, the magnetic decaying amplitudes 2450 that the current magnetic amplitude 2500 of correspondence is asked for relational model are carried out into convolutional calculation and goes out compensation
Magnetic amplitude, for example, 2800, it is assumed that when 2800 magnetic amplitude can ensure that genuine notes pass through afterwards, currency examination algorithm is accredited as genuine notes
Genuine notes, although yoke distance becomes magnetic amplitude that is big and causing to collect and reduces during due to assembling unreasonable or use, but
Magnetic amplitude can guarantee that genuine notes are accredited as genuine notes by currency examination algorithm after compensation.
Optionally, " the compensation after compensation in magnetic amplitude is calculated according to the current magnetic amplitude of correspondence and relational model
Magnetic amplitude afterwards " is specially：Current magnetic amplitude needs are searched in the table set up using relational model by current magnetic amplitude
The basic magnetic amplitude constant that the coefficient or needs taken advantage of adds, is multiplied by current magnetic amplitude coefficient or current magnetic amplitude adds base
Magnetic amplitude after the result that this magnetic amplitude constant is obtained as compensation.For example, current yoke distance is 1.5 centimetres, measures 1.5
During centimetre yoke distance, it is 2500 to collect the current magnetic amplitude of correspondence, and in the table set up using relational model coefficient is found
Be 1.12 or constant be 300, by current magnetic amplitude 2500 be multiplied by 1.12 or plus 300 calculate compensation after magnetic amplitude be
2800, it is assumed that when 2800 magnetic amplitude can ensure that genuine notes pass through, genuine notes are accredited as genuine notes by currency examination algorithm, although due to assembling
Yoke distance becomes magnetic amplitude that is big and causing to collect and reduces during unreasonable or use, but also passes through magnetic after compensation
Amplitude can guarantee that genuine notes are accredited as genuine notes by currency examination algorithm.
Optionally, mangetic compensation method also includes verifying magnetic amplitude after compensation.To magnetic amplitude after compensation
Carry out checking and belong to prior art, here is only briefly described, for example, 100 yuan of genuine notes tickets of several the 5th set of RMB are put into now,
Whether inspection currency examination algorithm can be unreasonable because of yoke distance, is counterfeit money by banknote evaluation, if through test of many times, currency examination algorithm
It is genuine notes to be accredited as, then explanation is compensated successfully.
It should be noted that carrying out verifying the probability that can reduce currency examination mistake to magnetic amplitude after compensation, it is to avoid give people
Bring unnecessary risk, ensure normal market transaction.
The embodiment of the present invention provides a kind of magnetic amplitude compensation method, due to gathering what current stream passed through in magnetic sensor
While the magnetic amplitude of banknote, yoke distance detection device measurement yoke distance is increased, then by magnetic amplitude and measurement
Corresponding yoke distance carry out large sample statistics, obtain the relational model of magnetic decaying amplitudes and yoke distance；So to magnetic amplitude
Data are compensated or according to relational model, it is artificial it is purposive, pointedly adjust yoke distance, efficiently solve prior art
The middle problem that genuine notes are accredited as counterfeit money.
Fig. 2 shows the magnetic amplitude compensation method flowchart that another embodiment of the present invention is provided, for the ease of saying
Bright, Fig. 2 illustrate only the part related to the embodiment of the present invention, and its process includes step S201 and S202, and details are as follows：
S201, when magnetic sensor gathers the magnetic amplitude of the banknote that current stream passes through, is surveyed by yoke distance detection device
Amount yoke distance.
It should be noted that all in this step S201 explain identical with former approach embodiment, will not be described here.
S202, by the corresponding yoke distance to magnetic amplitude and measurement large sample statistics is carried out, and obtains magnetic decaying amplitudes
With the relational model of yoke distance, if current yoke distance belongs to preset range, according to relational model, manually current yoke distance is entered
Row adjustment.
It should be noted that " carrying out full-page proof by the corresponding yoke distance to magnetic amplitude and measurement in regard to step S202
This statistics, obtains magnetic decaying amplitudes with the relational model of yoke distance " explanation it is identical with former approach embodiment, here is no longer
Repeat.
If current yoke distance belongs to preset range, according to relational model, manually current yoke distance is adjusted.
It should be noted that for example current yoke distance is 1.5 centimetres, and knowable to being concerned about in model table, 1.5 centimetres of yoke distance
When corresponding magnetic amplitude be 2500, yoke distance be 1.3 centimetres when corresponding magnetic amplitude be 2800, it is assumed that 2800 magnetic width
When value can ensure that genuine notes pass through, genuine notes are accredited as genuine notes by currency examination algorithm, now manually this yoke distance can be adjusted, probably
Reduce 0.2 centimetre, you can so that magnetic amplitude is changed near 2800, therefore can also solve due to assembling unreasonable or using
During yoke distance become big and ultimately result in the problem that genuine notes are accredited as counterfeit money, and comparatively, manually adjust and eliminate
A part of loaded down with trivial details calculating process, controllability is preferable.
Optionally, mangetic compensation method also includes that the magnetic amplitude collected after to manually adjusting the yoke distance is carried out
Checking.The magnetic amplitude collected after to manually adjusting the yoke distance carries out checking and belongs to prior art, and here is only briefly
It is bright, for example, 100 yuan of genuine notes tickets of several the 5th set of RMB are put into now, whether inspection currency examination algorithm can not conform to because of yoke distance
Reason, is counterfeit money by banknote evaluation, if through test of many times, it is genuine notes that currency examination algorithm is accredited as, then explanation is compensated successfully,
The yoke distance data after the magnetic amplitude data and adjustment that magnetic sensor collects can also be read simultaneously, and manually adjusted
When 0.2 centimetre of yoke distance amount substantially compared.
It should be noted that the magnetic amplitude collected after to manually adjusting yoke distance carries out checking can to reduce testing
The probability of paper money mistake, it is to avoid bring unnecessary risk, ensures normal market transaction.
Fig. 3 shows the magnetic amplitude compensation system structure diagram that another embodiment of the present invention is provided.For the ease of saying
Bright, Fig. 3 illustrate only the part related to the embodiment of the present invention.The magnetic amplitude compensation system of Fig. 3 examples includes magnetic transducing
Device 301, the computing device 303 of yoke distance detection device 302 and first, the first computing device 303 includes statistical module 401 and compensation
Module 402, wherein：
Magnetic sensor 301, for gathering the magnetic amplitude of the banknote that current stream passes through.
It should be noted that the banknote in the embodiment of the present invention can be the various valuable ticket that every country or area use
Certificate, here is not especially limited.
It should be noted that because the ad-hoc location (such as RMB magnetic security line) of banknote is made with special material,
Therefore the magnetic amplitude data for being collected with magnetic sensor 301 is substantially different from the background magnetic amplitude of surrounding.
Yoke distance detection device 302, for gathering the magnetic amplitude of the banknote that current stream passes through in magnetic sensor 301
When, measure yoke distance.
It should be noted that yoke distance refers to magnetic sensor to the distance of banknote in currency examination passage.
Optionally, yoke distance detection device 302 is arranged on magnetic sensor 301 so that in magnetic sensor 301
When gathering the magnetic amplitude of the banknote that current stream passes through, yoke distance detection device 302 can be convenient for measuring yoke distance, and the people that works
Member can directly read the current yoke distance for measuring.
Optionally, yoke distance detection device 302 is that yoke distance is measured using electromagnetic characteristics, for example, can be red
Outer yoke distance detection device.
It should be noted that the magnetic amplitude of current banknote is just gathered by a banknote magnetic sensor 301 per excessively stream,
And yoke distance is measured by yoke distance detection device 302.
Optionally, the magnetic amplitude of the current banknote for magnetic sensor 301 being collected and yoke distance detection device 302
The current banknote correspondence yoke distance for measuring is stored as a record.
Optionally, the yoke distance data that yoke distance detection device 302 is measured can be transmitted in the way of data frame format
Terminal or data base or disk to record data etc., i.e., often stream passes through a banknote transmission primaries yoke distance data.
It should be noted that measuring yoke distance using yoke distance detection device 302, assembly crewman is at ordinary times specifically quantified
Can by estimating judgement deciding whether suitable yoke distance, so can with it is purposive, pointedly change yoke distance, also may be used
To set up the quantitative relationship between magnetic amplitude and corresponding yoke distance.
Statistical module 401, for carrying out large sample statistics by the corresponding yoke distance to magnetic amplitude and measurement, obtains magnetic
Property decaying amplitudes and yoke distance relational model.
It should be noted that due to banknote new and old, version not, the difference such as the degree of wear, even if two or multiple are same
The banknote (such as the 4th set 100 yuan of RMB) of type, in the yoke distance identical situation that yoke distance detection device 302 is measured
Under, the magnetic amplitude that magnetic sensor 301 is collected is also different, therefore, say on stricti jurise, between magnetic amplitude and yoke distance
There is no one-to-one functional relationship, be therebetween certain " mapping " or " correspondence ".
Optionally, for the convenience of statistics, the corresponding yoke distance number of magnetic amplitude data and measurement is made into certain appropriate
Process, for example, if yoke distance is 0.1 millimeter, the magnetic amplitude that yoke distance detection device 302 is collected have for 2300, have
For 2200, have for 2100, then magnetic amplitude can be asked for average, take 2200 magnetic when being 0.1 millimeter as yoke distance
Property amplitude.So one-to-one functional relationship just can be set up between magnetic amplitude and yoke distance, although yoke distance be one from
Scattered variable, but when large sample amount statistics is carried out, can be approximately continuous, the relational model therebetween of final foundation is
Continuous functional relationship, i.e., show as a smooth curve under two-dimensional coordinate system, after being counted according to large sample, the curve
When substantially trend (being not excluded for fuctuation within a narrow range) is 0 for yoke distance, magnetic amplitude maximum, for example, 10000, yoke distance is (0, x1]
When, the rate of decay of magnetic amplitude is less, and magnetic amplitude has and decays by a small margin；Yoke distance is (x1,x2] when, magnetic amplitude attenuation
Speed increases, and decaying by a relatively large margin occurs in magnetic amplitude；Yoke distance is (x2,x3] when, the rate of decay of magnetic amplitude diminishes, magnetic
Property amplitude slowly decays to environmental background value.It should be noted that it is aforementioned interval simply to illustrate that and illustrate, in fact, magnetic
Property amplitude be smooth curve with the attenuation change of yoke distance, do not exist yoke distance for certain value when, magnetic amplitude is undergone mutation
Situation, the change being less likely to be in three intervals, simply to illustrate that magnetic amplitude is with the oblique of the attenuation curve of yoke distance
Rate is to change, situation of the attenuation curve similar to the right half of curve (i.e. abscissa is more than 0) of standard normal distribution.Aforementioned tool
Volume data is merely illustrative, the not true experimental data of numeral.
In fact, carrying out large sample statistics by the corresponding yoke distance to magnetic amplitude and measurement, what is obtained is " magnetic width
Value and the relational model of yoke distance ", but be one with the change of yoke distance according to magnetic amplitude described above and dynamically decayed
Journey, and the magnetic amplitude for more importantly being compensated the needs that yoke distance detection device 302 is currently collected be used for
The magnetic amplitude for setting up model is distinguished, Given this 2 points, adopts and " obtains the relation mould of magnetic decaying amplitudes and yoke distance
The saying of type ".
It should be noted that the magnetic amplitude and correspondence yoke distance for setting up model is by getting in many experiments,
Can also be accredited as genuine notes in the measurement data of the financial machine and tool of counterfeit money to get from a large amount of actual appearance, should be used for setting up mould
The magnetic amplitude and correspondence yoke distance of type are the sample datas for solving the problems, such as " genuine notes are accredited as into counterfeit money ".
It should be noted that magnetic decaying amplitudes can be aforesaid mapping or corresponding with the relational model of yoke distance,
It can also be certain functional relationship obtained according to preceding method.
Compensating module 402, if belonging to preset range for current yoke distance, according to the current magnetic amplitude of correspondence and relation
Model calculates magnetic amplitude after compensation.
It should be noted that yoke distance belongs to preset range refers to yoke distance not within normal range, but it is also to
In the range of reasonably can compensate for, the yoke distance normal range of such as certain automatic teller machine is [0.5,1] centimetre, reasonably can be mended
Scope is repaid for [1,2] centimetre, if certain yoke distance is 5 centimetres, then for this automatic teller machine, 5 centimetres of yoke distances
Not within normal range, and 5 centimetres of yoke distance is not also in the range of it rationally can compensate for, for this kind of situation can be by artificial
Adjustment yoke distance, makes yoke distance be maintained at normal range.Normal range, restrictive condition was：At this normal range, magnetic
Sensor acquisition to magnetic data so that genuine notes to be accredited as currency examination algorithm the scope of genuine notes.Aforementioned concrete data are simply illustrated
Illustrate, the not true experimental data of numeral.
Optionally, compensating module 402 calculates magnetic width after compensation according to the current magnetic amplitude of correspondence and relational model
The magnetic decaying amplitudes that " magnetic amplitude after compensation " in value is specifically asked for by current magnetic amplitude and using the relational model
Convolution is obtained, and for example, current yoke distance is 1.5 centimetres, when measuring 1.5 centimetres of yoke distances, collects the current magnetic width of correspondence
It is worth for 2500, and in the relational model that 1.5 centimetres of substitution S102 steps are obtained, obtains that " magnetic that relational model is asked for declines
Amount of decrease value " is 2450, the magnetic decaying amplitudes that compensating module 402 asks for the current magnetic amplitude 2500 of correspondence with relational model
2450 carry out convolutional calculation go out compensation after magnetic amplitude, for example, 2800, it is assumed that 2800 magnetic amplitude can ensure that genuine notes pass through
When, genuine notes are accredited as genuine notes by currency examination algorithm, although yoke distance becomes big and causes to adopt during due to assembling unreasonable or use
The magnetic amplitude for collecting reduces, but magnetic amplitude can guarantee that genuine notes are accredited as genuine notes by currency examination algorithm after compensation.
Optionally, compensating module 402 calculates magnetic width after compensation according to the current magnetic amplitude of correspondence and relational model
" magnetic amplitude after compensation " in value is specially：Current magnetic is searched in the table set up using relational model by current magnetic amplitude
Property amplitude need the coefficient taken advantage of or need plus basic magnetic amplitude constant, current magnetic amplitude is multiplied by and is by compensating module 402
Magnetic amplitude after the result as compensation that number or current magnetic amplitude are obtained plus basic magnetic amplitude constant.For example, current magnetic
Spacing is 1.5 centimetres, and when measuring 1.5 centimetres of yoke distances, it is 2500 to collect the current magnetic amplitude of correspondence, using relation mould
It is 1.12 that coefficient is found in the table that type is set up or constant is 300, and current magnetic amplitude 2500 is multiplied by 1.12 by compensating module 402
Or it is 2800 to calculate magnetic amplitude after compensation plus 300, it is assumed that when 2800 magnetic amplitude can ensure that genuine notes pass through, currency examination is calculated
Genuine notes are accredited as genuine notes by method, although yoke distance becomes big and causes the magnetic for collecting during due to assembling unreasonable or use
Amplitude reduces, but also passes through magnetic amplitude after compensation and can guarantee that genuine notes are accredited as genuine notes by currency examination algorithm.
It should be noted that the reality of the magnetic amplitude compensation system of another embodiment of the present invention offer shown in figure 3 above
In applying mode, for convenience and simplicity of description, only it is illustrated with the division of above-mentioned each functional device and module, it is actual to answer
Can as needed with, such as the convenient consideration of the configuration requirement of corresponding hardware or the realization of software, and by above-mentioned functions
Distribution is completed by different functional device and module, will the internal structure of magnetic amplitude compensation system be divided into different devices
And functional module, to complete all or part of function described above.And, it is corresponding in the present embodiment in practical application
Device and functional module can be realized by corresponding hardware, it is also possible to corresponding software is performed by corresponding hardware and is completed,
For example, statistical module, can be the hardware with statistical function, for example, counter, or be able to carry out corresponding computer
Program is so as to the corresponding function module in the general processor or other hardware devices, and the present embodiment that complete decision-making function
Respective change can be carried out to be disposed other than in one or more embodiment devices of the present embodiment, same embodiment is may be alternatively located at
(refer to the annexation of functional module) before or after middle difference in functionality module.In addition, the specific name of each functional module is also only
It is, for the ease of mutually differentiation, to be not limited to the protection domain of the application.(each embodiment that this specification is provided all may be used
Using foregoing description principle).
Magnetic amplitude compensation system shown in Fig. 3 can also include the first checking device 501, and such as Fig. 4 shows the present invention
The magnetic amplitude compensation system structure diagram that another embodiment is provided.
First checking device 501, for verifying to magnetic amplitude after the compensation.
It should be noted that magnetic amplitude carries out checking and belongs to prior art, here after the first checking 501 pairs, device compensation
Only briefly describe, for example, 100 yuan of genuine notes tickets of several the 5th set of RMB are put into now, whether inspection currency examination algorithm can be because of magnetic
Spacing is unreasonable, is counterfeit money by banknote evaluation, if through test of many times, it is genuine notes that currency examination algorithm is accredited as, then illustrate
Compensate successfully.
It should be noted that magnetic amplitude carries out checking and can reduce currency examination mistake after the first checking 501 pairs, device compensation
Probability, it is to avoid bring unnecessary risk, ensure normal market transaction.
Fig. 5 shows the magnetic amplitude compensation system structure diagram that another embodiment of the present invention is provided.For the ease of saying
Bright, Fig. 5 illustrate only the part related to the embodiment of the present invention.The magnetic amplitude compensation system of Fig. 5 examples includes magnetic transducing
Device 301, the computing device 601 of yoke distance detection device 302 and second, wherein：
Magnetic sensor 301, for gathering the magnetic amplitude of the banknote that current stream passes through.
It should be noted that explaining identical with previous system embodiment herein, will not be described here.
Yoke distance detection device 302, for gathering the magnetic amplitude of the banknote that current stream passes through in magnetic sensor 301
When, measure yoke distance.
It should be noted that explaining identical with previous system embodiment herein, will not be described here.
Second computing device 601, for carrying out large sample statistics by the corresponding yoke distance to magnetic amplitude and measurement, obtains
To the relational model of magnetic decaying amplitudes and the yoke distance, if current yoke distance belongs to preset range, according to relational model,
Manually current yoke distance is adjusted.
It should be noted that due to banknote new and old, version not, the difference such as the degree of wear, even if two or multiple are same
The banknote (such as the 4th set 100 yuan of RMB) of type, in the yoke distance identical situation that yoke distance detection device 302 is measured
Under, the magnetic amplitude that magnetic sensor 301 is collected is also different, therefore, say on stricti jurise, between magnetic amplitude and yoke distance
There is no one-to-one functional relationship, be therebetween certain " mapping " or " correspondence ".
Optionally, for the convenience of statistics, the corresponding yoke distance number of magnetic amplitude data and measurement is made into certain appropriate
Process, for example, if yoke distance is 0.1 millimeter, the magnetic amplitude that yoke distance detection device 302 is collected have for 2300, have
For 2200, have for 2100, then magnetic amplitude can be asked for average, take 2200 magnetic when being 0.1 millimeter as yoke distance
Property amplitude.So one-to-one functional relationship just can be set up between magnetic amplitude and yoke distance, although yoke distance be one from
Scattered variable, but when large sample amount statistics is carried out, can be approximately continuous, the relational model therebetween of final foundation is
Continuous functional relationship, i.e., show as a smooth curve under two-dimensional coordinate system, after being counted according to large sample, the curve
When substantially trend (being not excluded for fuctuation within a narrow range) is 0 for yoke distance, magnetic amplitude maximum, for example, 10000, yoke distance is (0, x1]
When, the rate of decay of magnetic amplitude is less, and magnetic amplitude has and decays by a small margin；Yoke distance is (x1,x2] when, magnetic amplitude attenuation
Speed increases, and decaying by a relatively large margin occurs in magnetic amplitude；Yoke distance is (x2,x3] when, the rate of decay of magnetic amplitude diminishes, magnetic
Property amplitude slowly decays to environmental background value.It should be noted that it is aforementioned interval simply to illustrate that and illustrate, in fact, magnetic
Property amplitude be smooth curve with the attenuation change of yoke distance, do not exist yoke distance for certain value when, magnetic amplitude is undergone mutation
Situation, the change being less likely to be in three intervals, simply to illustrate that magnetic amplitude is with the oblique of the attenuation curve of yoke distance
Rate is to change, situation of the attenuation curve similar to the right half of curve (i.e. abscissa is more than 0) of standard normal distribution.Aforementioned tool
Volume data is merely illustrative, the not true experimental data of numeral.
In fact, carrying out large sample statistics by the corresponding yoke distance to magnetic amplitude and measurement, what is obtained is " magnetic width
Value and the relational model of yoke distance ", but be one with the change of yoke distance according to magnetic amplitude described above and dynamically decayed
Journey, and the magnetic amplitude for more importantly being compensated the needs that yoke distance detection device 302 is currently collected be used for
The magnetic amplitude for setting up model is distinguished, Given this 2 points, adopts and " obtains the relation mould of magnetic decaying amplitudes and yoke distance
The saying of type ".
It should be noted that the magnetic amplitude and correspondence yoke distance for setting up model is by getting in many experiments,
Can also be accredited as genuine notes in the measurement data of the financial machine and tool of counterfeit money to get from a large amount of actual appearance, should be used for setting up mould
The magnetic amplitude and correspondence yoke distance of type are the sample datas for solving the problems, such as " genuine notes are accredited as into counterfeit money ".
It should be noted that magnetic decaying amplitudes can be aforesaid mapping or corresponding with the relational model of yoke distance,
It can also be certain functional relationship obtained according to preceding method.
If current yoke distance belongs to preset range, according to relational model, manually current yoke distance is adjusted.
It should be noted that for example current yoke distance is 1.5 centimetres, and knowable to being concerned about in model table, 1.5 centimetres of yoke distance
When corresponding magnetic amplitude be 2500, yoke distance be 1.3 centimetres when corresponding magnetic amplitude be 2800, it is assumed that 2800 magnetic width
When value can ensure that genuine notes pass through, genuine notes are accredited as genuine notes by currency examination algorithm, now manually this yoke distance can be adjusted, probably
Reduce 0.2 centimetre, you can so that magnetic amplitude is changed near 2800, therefore can also solve due to assembling unreasonable or using
During yoke distance become big and ultimately result in the problem that genuine notes are accredited as counterfeit money, and comparatively, manually adjust and eliminate
A part of loaded down with trivial details calculating process, controllability is preferable.
Magnetic amplitude compensation system shown in Fig. 5 can also include the second checking device 701, and such as Fig. 6 shows the present invention
The magnetic amplitude compensation system structure diagram that another embodiment is provided.Second checking device 701, for manually adjusting between magnetic
The magnetic amplitude collected after is verified.
It should be noted that the second 701 pairs, device of checking manually adjusts the magnetic amplitude collected after yoke distance and tests
Card belongs to prior art, and here is only briefly described, and for example, 100 yuan of genuine notes tickets of several the 5th set of RMB is put into now, and inspection is tested
Whether paper money algorithm can be unreasonable because of yoke distance, is counterfeit money by banknote evaluation, if through test of many times, currency examination algorithm is reflected
It is genuine notes to be set to, then explanation is compensated successfully, while magnetic amplitude data and the tune that magnetic sensor is collected can also be read
Yoke distance data after whole, are substantially compared with 0.2 centimetre of yoke distance amount when manually adjusting.
It should be noted that the second 701 pairs, device of checking manually adjusts the magnetic amplitude collected after yoke distance and enters
Row checking can reduce the probability of currency examination mistake, it is to avoid bring unnecessary risk, ensure normal market transaction.
It should be noted that it is related to the words such as " first ", " second " in all embodiments of the invention, the such as first checking dress
Put, second verifies that the heres such as device are only the convenience stated and refer to, be not meant in the specific implementation of the present invention
Necessarily have corresponding first checking device and the second checking device.
It should be noted that the content such as information exchange, implementation procedure in said apparatus embodiment between each module/unit
And embodiment entire content, due to being based on same design, the technique effect that it brings and the present invention with the inventive method embodiment
Embodiment of the method is identical, and particular content can be found in the narration in the embodiment of the inventive method one, and here is omitted.
Those of ordinary skill in the art are further appreciated that all or part of step realized in above-described embodiment method is can
Completed with instructing the hardware of correlation by program, described program can be stored in a computer read/write memory medium
In, described storage medium, including ROM/RAM, disk, CD etc..
Above content be with reference to specific preferred implementation the principle of the invention and embodiment are made it is further in detail
Describe in detail bright, it is impossible to assert the present invention be embodied as be confined to these explanation, be only intended to help and understand the method for the present invention
And its core concept；For simultaneously for general technical staff of the technical field of the invention, without departing from present inventive concept
On the premise of make some equivalent substitutes or obvious modification, and performance or purposes are identical, all should be considered as belonging to the present invention by
The scope of patent protection that the claims submitted to determine.
Claims (10)
1. a kind of magnetic amplitude compensation method, it is characterised in that methods described includes：
When magnetic sensor gathers the magnetic amplitude of the banknote that stream passes through, yoke distance is measured by yoke distance detection device；
By to the magnetic amplitude and measurement the correspondence yoke distance carry out large sample statistics, obtain magnetic decaying amplitudes with
The relational model of the yoke distance；
If presently described yoke distance belongs to preset range, benefit is calculated according to the current magnetic amplitude of correspondence and the relational model
Repay rear magnetic amplitude.
2. the method for claim 1, it is characterised in that after the compensation magnetic amplitude by the current magnetic amplitude and
The magnetic decaying amplitudes convolution asked for using the relational model is obtained.
3. method as claimed in claim 1 or 2, it is characterised in that methods described also includes：
Magnetic amplitude after the compensation is verified.
4. a kind of magnetic amplitude compensation method, it is characterised in that methods described includes：
When magnetic sensor gathers the magnetic amplitude of the banknote that stream passes through, yoke distance is measured by yoke distance detection device；
By to the magnetic amplitude and measurement the correspondence yoke distance carry out large sample statistics, obtain magnetic decaying amplitudes with
The relational model of the yoke distance, if presently described yoke distance belongs to preset range, according to the relational model, manually to working as
The front yoke distance is adjusted.
5. method as claimed in claim 4, it is characterised in that methods described also includes：
The magnetic amplitude collected after to manually adjusting the yoke distance is verified.
6. a kind of magnetic amplitude compensation system, it is characterised in that the system includes：Magnetic sensor, yoke distance detection device
With the first computing device, first computing device includes statistical module and compensating module；
The magnetic sensor is used to gather the magnetic amplitude of the banknote that stream passes through；
The yoke distance detection device is used for when magnetic sensor gathers the magnetic amplitude of the banknote that stream passes through, between measurement magnetic
Away from；
The statistical module is used to carry out large sample statistics by the correspondence yoke distance to the magnetic amplitude and measurement, obtains
To the relational model of magnetic decaying amplitudes and the yoke distance；
If the compensating module belongs to preset range for presently described yoke distance, according to the current magnetic amplitude of correspondence and described
Relational model calculates magnetic amplitude after compensation.
7. system as claimed in claim 6, it is characterised in that after the compensation magnetic amplitude by the current magnetic amplitude and
The magnetic decaying amplitudes convolution asked for using the relational model is obtained.
8. system as claimed in claims 6 or 7, it is characterised in that the system also includes the first checking device, described first
Checking device is used to verify magnetic amplitude after the compensation.
9. a kind of magnetic amplitude compensation system, it is characterised in that the system includes：Magnetic sensor, yoke distance detection device
With the second computing device；
The magnetic sensor is used to gather the magnetic amplitude of the banknote that current stream passes through；
The yoke distance detection device is used for when magnetic sensor gathers the magnetic amplitude of the banknote that current stream passes through, and measures magnetic
Spacing；
Second computing device is used to carry out large sample system by the correspondence yoke distance to the magnetic amplitude and measurement
Meter, obtains the relational model of magnetic decaying amplitudes and the yoke distance, if presently described yoke distance belongs to preset range, basis
The relational model, is manually adjusted to presently described yoke distance.
10. system as claimed in claim 9, it is characterised in that the system also includes the second checking device, and described second tests
The magnetic amplitude that card device is used to be collected after to manually adjusting the yoke distance is verified.
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| CN201611144418.5A CN106683258B (en) | 2016-12-13 | 2016-12-13 | A kind of magnetism amplitude compensation method and system |
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| CN201611144418.5A CN106683258B (en) | 2016-12-13 | 2016-12-13 | A kind of magnetism amplitude compensation method and system |
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| WO2007087179A3 (en) * | 2006-01-12 | 2008-02-14 | Timken Us Corp | Magnetic sensor with compensation |
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