CN104700492B - The false-proof detection method and device of a kind of marketable securities - Google Patents
The false-proof detection method and device of a kind of marketable securities Download PDFInfo
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Abstract
The invention discloses the false-proof detection method and device of a kind of marketable securities.Wherein, method includes：Marketable securities induced voltage at least two directions is obtained using Magnetic Sensor；Any two direction at least two direction is orthogonal；Size according to all induced voltages determines the magnetic line of force direction on the marketable securities；According to the magnetic line of force direction on the marketable securities and the comparing result in the magnetic line of force direction for prestoring, the true and false of the marketable securities is judged.Using the method, can be compared in the prior art only according to the wrong detection method of magnetic according to the true and false of magnetic line of force walking direction marketable securities, the present invention improves the accuracy of anti-counterfeiting detection.
Description
Technical field
The present invention relates to the anti-counterfeiting detection field of marketable securities, more particularly to a kind of magnetic line of force direction based on marketable securities
Detect the detection method and device of the marketable securities true and false.
Background technology
Magnetic anti-counterfeit is one of basic skills of marketable securities counterfeit protection measures, generally in some region of marketable securities
(image) is printed or is made over the metal lines magnetic bar code with magnetic ink.Identifier is installed magnetic and is passed just according to this characteristic
Whether sensor, the magnetic regions (magnet bar code) to marketable securities detect, judge be magnetic on marketable securities, are differentiated with this
The true and false of marketable securities.
But such method can only detect the marketable securities of part forgery, i.e., those do not have the valuable card of magnetic feature
Certificate.There is the forgery bond of magnetic feature for those, the above method can not carry out effective detection.
The content of the invention
It is an object of the invention to provide the false-proof detection method and device of a kind of marketable securities, to solve in the prior art
The problem of forgery bond cannot accurately be detected.
Based on above-mentioned purpose, a kind of false-proof detection method of marketable securities is the embodiment of the invention provides, including：
Marketable securities induced voltage at least two directions is obtained using Magnetic Sensor；In at least two direction
Any two direction it is orthogonal；
Size according to all induced voltages determines the magnetic line of force direction on the marketable securities；
According to the comparing result in the magnetic line of force direction on the marketable securities and the magnetic line of force direction for prestoring, judge described in have
The true and false of valency security.
Preferably, the Magnetic Sensor includes being located at respectively in X, Y, Z axis and magnetic induction direction is respectively the magnetic of X, Y, Z axis
Sensing element.
Preferably, the Magnetic Sensor includes being located at respectively in X, Y-axis and magnetic induction direction is respectively the magnetic induction of X, Y-axis
Element.
Preferably, the contrast knot in the magnetic line of force direction according on the marketable securities and the magnetic line of force direction for prestoring
Really, judging the true and false of the marketable securities includes：
The comparing result of size according to the induced voltage on all directions and the size of the induced voltage for prestoring and
The magnetic line of force direction according on the marketable securities and the comparing result in the magnetic line of force direction for prestoring, judge the valuable card
The true and false of certificate.
Another embodiment of the present invention additionally provides a kind of anti-counterfeiting detecting device of marketable securities, including：
Magnetic Sensor, magnetic line of force direction-determining unit, the first comparison unit and true and false detection unit；
The Magnetic Sensor, for obtaining marketable securities induced voltage at least two directions；Described at least two
Any two direction in direction is orthogonal；
The magnetic line of force direction-determining unit, is connected with the Magnetic Sensor, for according to all induced voltages
Size determines the magnetic line of force direction on the marketable securities；
First comparison unit, for the magnetic line of force direction on the marketable securities to be entered with the magnetic line of force direction for prestoring
Row contrast, obtains the first comparing result；
The true and false detection unit, the true and false for judging the marketable securities according to first comparing result.
Preferably, the Magnetic Sensor includes being located at respectively in X, Y, Z axis and magnetic induction direction is respectively the magnetic of X, Y, Z axis
Sensing element.
Preferably, the Magnetic Sensor includes being located at respectively in X, Y-axis and magnetic induction direction is respectively the magnetic induction of X, Y-axis
Element.
Preferably, the anti-counterfeiting detecting device also includes the second comparison unit, for by the sensing on all directions
The size of voltage is contrasted with the size of the induced voltage for prestoring, and obtains the second comparing result；
The true and false detection unit, for having according to first comparing result and second comparing result judgement
The true and false of valency security.
The beneficial effects of the invention are as follows：
The present invention is by detecting induced voltage of the marketable securities at least two mutually perpendicular directions, enabling root
The magnetic line of force direction on marketable securities is determined according to the size of induced voltage, and then the true of marketable securities is determined according to magnetic line of force direction
It is pseudo-.Prior art is compared, the application can carry out qualitative and quantitative analysis, improve anti-counterfeiting detection to the magnetic feature of marketable securities
Accuracy.
Brief description of the drawings
Figure 1A, 1B are magnetic line of force schematic diagram；
Fig. 2 is the principle schematic when direction of motion of Magnetic Sensor is identical with magnetic line of force direction；
Fig. 3 is the principle schematic when direction of motion of Magnetic Sensor is vertical with magnetic line of force direction；
Fig. 4-7 is the magnetic line of force distribution schematic diagram of marketable securities；
Fig. 8-9 is the direction of motion schematic diagram of Magnetic Sensor；
Figure 10 is the false-proof detection method flow chart of marketable securities of the invention；
Figure 11 is the schematic diagram for carrying out anti-counterfeiting detection in the present invention using three axis vector magnetic sensors.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is well known that magnetic is polarized, and the magnetic line of force is produced in the interpolars of NS two.See Figure 1A, 1B.As seen from the figure, as long as
The position of NS is different, and the direction of its magnetic line of force is different.The magnetic line of force of Figure 1A is horizontal distribution, and the magnetic line of force of Figure 1B is vertical
Distribution.According to electromagnetic induction principle, as long as long as Magnetic Sensor is mutually perpendicular to or i.e. not parallel at an angle with the magnetic line of force, two
There is relative motion in person, Magnetic Sensor cutting magnetic line will have induced electromotive force to produce.As shown in Figure 2.If Magnetic Sensor
The direction of motion is parallel with the magnetic line of force, is just produced without induced electromotive force, as shown in Figure 3.
But in fact, the magnetic picture on marketable securities be to be arranged according to certain rules by various magnetic-particles and
Form magnetic image region.Such as Fig. 4 magnetic line of force vertical distributions, Fig. 5 magnetic line of force horizontal distributions, the distribution of Fig. 6 magnetic inclinations, Fig. 7 magnetic
Line of force mixed distribution.
It can be seen that, the magnetic line of force distribution of magnetic image can be ever-changing according to false proof requirement on marketable securities.It is above-mentioned only
It is some simple distribution modes.
Existing marketable securities anti-counterfeiting detector is to allow marketable securities to pass through Magnetic Sensor, Fig. 8 and Fig. 9 by certain direction
It is two kinds of motor patterns of different directions.According to electromagnetic induction principle, if marketable securities run in the way of Fig. 8, it is seen that magnetic force
Line presses the marketable securities of Fig. 4 distributions, and because its magnetic line of force and Magnetic Sensor are vertical, therefore its magnetic is detected；And Fig. 5
Shown marketable securities, because the direction of the magnetic line of force and Magnetic Sensor is level, and cannot detect the magnetic on security；Figure
Marketable securities shown in 6, because the magnetic line of force and Magnetic Sensor have an angle, therefore, it can detect the magnetic on marketable securities
Property, but its induced voltage is smaller；Marketable securities shown in Fig. 7, the vertical magnetic regions of its magnetic line of force, can be to be detected,
And level just cannot be detected.Similarly, direction motion as shown in Figure 9, Fig. 5, the magnetic of the marketable securities shown in Fig. 6 can
To detect, the marketable securities magnetic detection of Fig. 4 is less than the marketable securities of Fig. 7 are also that part magnetic can be detected.
Based on above-mentioned principle, the invention provides a kind of false-proof detection method of marketable securities, can be many to marketable securities
Magnetic feature on individual direction is detected, and is determined the magnetic line of force direction of marketable securities, to enter according to the testing result of multiple directions
And according to the true and false of magnetic line of force walking direction marketable securities.As shown in Figure 10, the method comprises the following steps：
S11, the induced voltage using Magnetic Sensor acquisition marketable securities at least two directions；At least two side
Any two direction in is orthogonal.
S12, the magnetic line of force direction determined according to the size of all induced voltages on the marketable securities.
Magnetic line of force direction and detection side can be determined according to the size ratio of the induced voltage in two orthogonal directions
To angle, to determine magnetic line of force direction.
By taking three detections in direction of X, Y, Z axis as an example, if the induced voltage detected in X, Y direction it is equal in magnitude and
It is not zero, the induced voltage detected in Z-direction is zero, then the direction of the magnetic line of force is just in X/Y plane and at 45 ° with X-axis
Angle.
S13, according to the magnetic line of force direction on the marketable securities and the comparing result in the magnetic line of force direction for prestoring, judge institute
State the true and false of marketable securities.
The magnetic line of force direction of the marketable securities that will be detected is carried out with the magnetic line of force direction of the real marketable securities for prestoring
Contrast, is genuine marketable securities if identical, if it is different, then being false marketable securities.
In one plane, thus in the embodiment of the present invention, Magnetic Sensor can be with the magnetic line of force direction of usual marketable securities
Detect the magnetic feature of two orthogonal directions of marketable securities.Certainly, it is contemplated that more may, can be with the embodiment of the present invention
Magnetic feature to marketable securities carries out three-dimensional values, is more fully detected with to marketable securities.
During specific detection, it is possible to use a magnetic induction part carries out relative motion to marketable securities in different directions.More
Preferably, it is possible to use can simultaneously detect the vector Magnetic Sensor in both direction or three directions, i.e., at two of X, Y, Z axis or
Magnetic induction part is disposed respectively on three directions, and its magnetic induction direction correspond to X, Y, Z axis respectively.
Figure 11 is shown a case that using three axis vector magnetic sensors.As long as now between vector Magnetic Sensor and marketable securities
There is relative fortune work(, regardless of its direction of motion, according to electromagnetic induction principle, X, Y, Z tri- independent magnetic induction original paper energy
The magnetic line of force on respective direction is respectively cut, respective induced voltage Vx, Vy, Vz is produced.It can be seen that, vector magnetic sensing of the invention
As long as device has relative movement with marketable securities, regardless of its direction of motion, corresponding induced voltage Vx can be obtained, Vy and
Vz.Traditional Magnetic Sensor is which overcomed due to single detection direction, and cannot comprehensively be detected all of on marketable securities
Magnetic feature.Further, according to the size of induced voltage, the magnetic line of force direction on marketable securities can accurately be differentiated.
In another embodiment of the invention, the size of induced voltage is can be combined with to detect the true and false of marketable securities.
The size of the induced voltage on the size of the induced voltage in all directions that will be detected and true marketable securities correspondence direction
Contrasted, if consistent and magnetic line of force direction is also consistent, marketable securities are true.
In addition, as described in Figure 7, in the different zones of same marketable securities, magnetic line of force direction is different.Therefore, being prevented
During puppet detection, marketable securities can be divided into different units, unit is as above detected respectively.Only unit
Testing result when being true, marketable securities are just true.
For above-mentioned false-proof detection method, present invention also offers a kind of anti-counterfeiting detecting device of marketable securities, including magnetic
Sensor, magnetic line of force direction-determining unit, the first comparison unit and true and false detection unit；
The Magnetic Sensor, for obtaining marketable securities induced voltage at least two directions；Described at least two
Any two direction in direction is orthogonal.
The magnetic line of force direction-determining unit, is connected with the Magnetic Sensor, for according to all induced voltages
Size determines the magnetic line of force direction on the marketable securities.
First comparison unit, for the magnetic line of force direction on the marketable securities to be entered with the magnetic line of force direction for prestoring
Row contrast, obtains the first comparing result.
The true and false detection unit, the true and false for judging the marketable securities according to first comparing result.
Preferably, the Magnetic Sensor includes being located at respectively in X, Y, Z axis and magnetic induction direction is respectively the magnetic of X, Y, Z axis
Sensing element.
Preferably, the Magnetic Sensor includes being located at respectively in X, Y-axis and magnetic induction direction is respectively the magnetic induction of X, Y-axis
Element.
Preferably, the anti-counterfeiting detecting device also includes the second comparison unit, for by the sensing on all directions
The size of voltage is contrasted with the size of the induced voltage for prestoring, and obtains the second comparing result；
The true and false detection unit, for having according to first comparing result and second comparing result judgement
The true and false of valency security.
In addition, for mentioning situation that marketable securities are divided multiple units in the above method, apparatus of the present invention can be with
It is corresponding to use multiple Magnetic Sensors, unit is detected respectively and is judged, and last comparing result is delivered to very
Pseudo- detection unit, so that true and false detection unit is when the contrast of unit is true, judges that marketable securities are true.
It should be noted that apparatus and method of the present invention embodiment is corresponding, relevant portion can be referred to mutually.
Specific embodiment above, has been carried out further specifically to the purpose of the present invention, technical scheme and beneficial effect
Bright, institute is it should be noted that these are only a specific embodiment of the invention, those skilled in the art can be to this hair
It is bright to carry out various changes and modification without departing from the spirit and scope of the present invention.So, if these modifications of the invention and change
Type belongs within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to exist comprising these changes and modification
It is interior.
Claims (8)
1. a kind of false-proof detection method of marketable securities, it is characterised in that the false-proof detection method includes：
Marketable securities induced voltage at least two directions is obtained using Magnetic Sensor；Appointing at least two direction
Meaning both direction is orthogonal；
Size according to all induced voltages determines the magnetic line of force direction on the marketable securities；
According to the magnetic line of force direction on the marketable securities and the comparing result in the magnetic line of force direction for prestoring, the valuable card is judged
The true and false of certificate.
2. the false-proof detection method of marketable securities as claimed in claim 1, it is characterised in that the Magnetic Sensor includes difference
In X, Y, Z axis and magnetic induction direction is respectively the magnetic induction part of X, Y, Z axis.
3. the false-proof detection method of marketable securities as claimed in claim 1, it is characterised in that the Magnetic Sensor includes difference
In X, Y-axis and magnetic induction direction is respectively the magnetic induction part of X, Y-axis.
4. the false-proof detection method of marketable securities as claimed in claim 1, it is characterised in that described according to the marketable securities
On magnetic line of force direction and the magnetic line of force direction for prestoring comparing result, judging the true and false of the marketable securities includes：
The comparing result of size according to the induced voltage on all directions and the size of the induced voltage for prestoring and described
According to the magnetic line of force direction on the marketable securities and the comparing result in the magnetic line of force direction for prestoring, the marketable securities are judged
The true and false.
5. a kind of anti-counterfeiting detecting device of marketable securities, it is characterised in that the anti-counterfeiting detecting device includes：
Magnetic Sensor, magnetic line of force direction-determining unit, the first comparison unit and true and false detection unit；
The Magnetic Sensor, for obtaining marketable securities induced voltage at least two directions；At least two direction
In any two direction it is orthogonal；
The magnetic line of force direction-determining unit, is connected with the Magnetic Sensor, for the size according to all induced voltages
Determine the magnetic line of force direction on the marketable securities；
First comparison unit is right for the magnetic line of force direction on the marketable securities and the magnetic line of force direction for prestoring to be carried out
Than obtaining the first comparing result；
The true and false detection unit, the true and false for judging the marketable securities according to first comparing result.
6. the anti-counterfeiting detecting device of marketable securities as claimed in claim 5, it is characterised in that the Magnetic Sensor includes difference
In X, Y, Z axis and magnetic induction direction is respectively the magnetic induction part of X, Y, Z axis.
7. the anti-counterfeiting detecting device of marketable securities as claimed in claim 5, it is characterised in that the Magnetic Sensor includes difference
In X, Y-axis and magnetic induction direction is respectively the magnetic induction part of X, Y-axis.
8. the anti-counterfeiting detecting device of marketable securities as claimed in claim 5, it is characterised in that the anti-counterfeiting detecting device is also wrapped
The second comparison unit is included, for the size of the induced voltage on all directions to be carried out with the size of the induced voltage for prestoring
Contrast, obtains the second comparing result；
The true and false detection unit, for judging the valuable card according to first comparing result and second comparing result
The true and false of certificate.
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| JP2012181604A (en) * | 2011-02-28 | 2012-09-20 | Toshiba Tec Corp | Coin processor and program |
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| WO2014077163A1 (en) * | 2012-11-15 | 2014-05-22 | 三菱電機株式会社 | Magnetic sensor device |
| CN104008597A (en) * | 2014-05-13 | 2014-08-27 | 苏州保瑟佳货币检测科技有限公司 | Authenticity test method for marketable security and related device |
| JP2014190734A (en) * | 2013-03-26 | 2014-10-06 | Hamamatsu Koden Kk | Magnetic material detector |
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2015
- 2015-03-24 CN CN201510129878.XA patent/CN104700492B/en active Active
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|---|---|---|---|---|
| EP1747906A2 (en) * | 2002-04-19 | 2007-01-31 | Giesecke & Devrient GmbH | Security document |
| CN201196806Y (en) * | 2008-03-28 | 2009-02-18 | 江苏金陵机械制造总厂 | Anti-counterfeit coin-recognition module of coin machine |
| JP2012181604A (en) * | 2011-02-28 | 2012-09-20 | Toshiba Tec Corp | Coin processor and program |
| WO2014077163A1 (en) * | 2012-11-15 | 2014-05-22 | 三菱電機株式会社 | Magnetic sensor device |
| CN103116935A (en) * | 2013-01-23 | 2013-05-22 | 广州纳龙智能科技有限公司 | Currency detector and quantitative authenticity identification method |
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