CN102893309A - Sensor for verifying value documents - Google Patents
Sensor for verifying value documents Download PDFInfo
- Publication number
- CN102893309A CN102893309A CN2011800242293A CN201180024229A CN102893309A CN 102893309 A CN102893309 A CN 102893309A CN 2011800242293 A CN2011800242293 A CN 2011800242293A CN 201180024229 A CN201180024229 A CN 201180024229A CN 102893309 A CN102893309 A CN 102893309A
- Authority
- CN
- China
- Prior art keywords
- sensor
- detecting area
- detector
- value document
- fluorescence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 92
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000005259 measurement Methods 0.000 claims description 44
- 238000005286 illumination Methods 0.000 claims description 43
- 230000003595 spectral effect Effects 0.000 claims description 40
- 230000004044 response Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000005284 excitation Effects 0.000 abstract description 3
- 238000004020 luminiscence type Methods 0.000 abstract 4
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 6
- 239000000523 sample Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001917 fluorescence detection Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
- G07D7/06—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 using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/121—Apparatus characterised by sensor details
-
- 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
- G07D7/06—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 using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/1205—Testing spectral properties
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
The invention relates to a sensor for verifying a value document, which is moved relative to the sensor. The sensor is designed to check the decay time of a luminescence of the value document based on luminescence signals of a plurality of detectors. The sensor comprises a lighting device for illuminating the value document with excitation light, and a plurality of detectors for continuous detection of luminescent light that the illuminated value document emits in different detection regions that are arranged offset with respect to each other along the movement direction of the value document. A first of the detectors of the sensor is designed to generate a first luminescence signal of a first detection region that in the measuring plane overlaps with the illuminated portion, and a second detector of the sensor is designed to generate a second luminescence signal of a preceding detection region which, viewed along the movement direction of the value document, is arranged in the measuring plane upstream of the first detection region.
Description
The present invention relates to a kind of sensor for verifying valuable documents and method and a kind of equipment with this sensor.
Usually use the sensor verifying valuable documents, define the type of value document by them, and/or by authenticity and/or its state of their verifying valuable documents.This sensor is such as being used for check banknote, check, certificate, credit card, cheque card, ticket, reward voucher etc.Value document is checked in the value document treatment facility, according to the value document characteristic that will check, comprises one or more different sensors in the equipment.For verifying valuable documents, they are usually with respect to sensor movement, and wherein, or value document is from the other process of carrying of sensor, otherwise or.
The value document of checking can have one or more fluorescent materials, wherein for example checks die-away time and/or the spectral characteristic of fluorescence.The fluorescent material of value document may reside on the local or whole area of value document.In order to check the die-away time of fluorescence, known to light pulsing light value document, and the dark stage between light pulse, survey the value document fluorescence intensity that bright pulse finishes rear different time.The shortcoming here is that because the relative motion between pulsed illumination and sensor and the value document, the check of value document is carried out by phased manner.Because the dark stage causes the periodic interruptions of value document optical excitation, so just do not carry out fluorescent inspection along value document every a determining deviation.
Known in addition, the value document that check throws light on exciting light in a position of its transport path, and by the fluorescence that is arranged on the detector detection value document on the transport path follow-up location with a certain distance from lighting device with having.If adopt two-dimensional image sensor as detector here, then by fluorescence along the decay spatially of value document direction of motion, can define the die-away time of value document fluorescence.The shortcoming here is in the lower situation of value document movement velocity, to adopt this method can only determine limited numerical range die-away time.
Technical matters to be solved by this invention provides a kind of sensor of verifying valuable documents, also can be in the die-away time of verifying valuable documents fluorescence in the larger die-away time numerical range when movement velocity is low with it.
This technical matters solves by the technical theme of independent claims.Favourable the further developing and designing of the present invention is described in the dependent claims.
By sensor design of the present invention be used for check the sensor measurement graphic memory value document.For verifying valuable documents, value document and sensor move relative to each other, make value document along direction of motion with respect to sensor movement.Here, value document is usually other along it or through its conveying at static sensor along direction of motion.But as alternative, sensor also can be carried with respect to static value document, or both can carry.Sensor setting is used for the fluorescence decay time of verifying valuable documents.Check die-away time take the fluorescence signal of sensor detector as the basis here.Sensor can only be used in check and carry one by one through the other value document of sensor, but also can check the paper that comprises a plurality of value documents or the continuous web that has a plurality of value documents along direction of motion.For example sensor also is applicable to check the web that is comprised of the value document that not yet completes, in order that just checked in the value document production run.
Sensor has lighting device, and it is used for a section of illumination sensor measurement plane, and when making value document work as it with respect to sensor movement, optical illumination is excited in the described section of measurement plane.In addition, the detector that sensor has a plurality of detection fluorescence to use, fluorescence by with the value document of exciting light illumination when its during with respect to sensor movement the different detecting areas at measurement plane send.The detecting area of the detector of sensor is staggered each other along the direction of motion of value document.The section of illumination and the detecting area of detector are in the measurement plane of sensor the position respectively regularly.The exciting light of lighting device is designed for the fluorescence that excites like this value document that will check, and value document is launched can be by the fluorescence of detector detection.
The first detector of sensor is provided for producing the first fluorescence signal of the first detecting area, and the first detecting area is overlapping with the section of illumination in measurement plane.Described the first fluorescence signal is equivalent to the fluorescence surveyed in the first detecting area.The second detector of sensor is provided for being created in the second fluorescence signal of the detecting area of front, this detecting area along value document direction of motion observe in measurement plane, be in the first detecting area before.Described the second fluorescence signal is equivalent to the fluorescence surveyed in described detecting area in front.Observe along direction of motion, the length of the section of illumination is preferably greater than or equal to the length of the first detecting area.
In addition, sensor preferably also has the 3rd detector, and it is provided for producing the 3rd fluorescence signal of detecting area subsequently.This detecting area subsequently is in the first detecting area along the direction of motion observation in measurement plane after.Described the 3rd fluorescence signal is equivalent to the fluorescence surveyed in detecting area subsequently.The 3rd detector allows sensor can determine more accurately long die-away time.But also can be designed as, sensor do not have the 3rd detector.By a kind of embodiment, described detecting area subsequently is so far away after the direction of motion observation is in the first detector, so that it is not overlapping with the illumination section of measurement plane.
For verifying valuable documents, continuous illumination measurement plane illumination section, and in illumination by the fluorescence of detector continuous probe value document.Thus, and with pulsed illumination with the stagger check surveyed of time is opposite for this reason, verifying valuable documents incessantly.Spectral filter is set before detector usually, and it stops the exciting light of lighting device, in order to can together not detect the exciting light that is scattered on the value document.
In addition, sensor can also have one or more other detectors, and they are provided for respectively producing another fluorescence signal of another detecting area.Described one or more other detecting area is observed along value document direction of motion and is in behind the described detecting area in front in measurement plane and before the first detecting area.Alternatively, also the fluorescence signal of described other detector can be used for check die-away time.Can for example set up respectively the proportionate relationship of fluorescence signal and first fluorescence signal of one of other detector for this reason.Also the fluorescence signal with one of other detector is favourable for checking die-away time, because can check more accurately thus or definite die-away time.First, second is with other in case of necessity detector and the 3rd detector can be for example by one dimension or two-dimentional photodetector array formation in case of necessity.
Sensor setting is, uses under certain conditions die-away time of fluorescence signal verifying valuable documents fluorescence of at least one other detector of the second fluorescence signal and sensor.Described other its fluorescence signal and the common detector that uses of the second fluorescence signal for example is one of above-mentioned other detector of the first detector or sensor.Clear and definite given fluorescence signal with the second fluorescence signal and other detector is used in the check condition of die-away time in advance.
But sensor also can be set to, and can adjust these conditions after sensor is devoted oneself to work.Use the condition of fluorescence signal check die-away time of the second fluorescence signal and other detector, can comprise the measuring condition of verifying valuable documents and/or the characteristic of the value document that will check itself, for example type of value document.For example, for expection die-away time of its fluorescence this value document shorter than the die-away time of regulation, can use the second fluorescence signal and the fluorescence signal of one of other detector of sensor at least, especially the second and first fluorescence signal, or second and other detector at least one fluorescence signal check die-away time.To check die-away time institute based on the selection of fluorescence signal, can carry out online to a certain extent, for example by the information of only in the scope that value document is checked, just knowing.
Preferably, sensor setting is, take the first and second fluorescence signals as basis, the die-away time of verifying valuable documents fluorescence.This outer sensor can be set to, and by selecting take the first and second fluorescence signals as the basis, or take the first and the 3rd fluorescence signal as the basis, checks described die-away time.Select first and second or select the first and the 3rd fluorescence signal, can carry out according to measuring condition and/or according to the characteristic of the value document that will check.This outer sensor also can be set to, by selecting take the first and second fluorescence signals as the basis, or take the first and the 3rd fluorescence signal as the basis, or take the first and second and the 3rd fluorescence signal as basis, the die-away time of verifying valuable documents fluorescence.
Can provide the information of relevant value document with respect to the movement velocity of sensor for sensor.For example, can in sensor, adjust the movement velocity of value document.The information of the relevant movement velocity of when verifying valuable documents, using, also can be for example equipment by sensor wherein is housed from outside input pickup.This can finish before the value document check.Sensor also can obtain actual movement velocity to a certain extent online, is perhaps for example obtained the period of motion of the value document that will check by the equipment of also controlling the value document motion.The movement velocity of value document can be determined according to the motion of value document by one or more diaphragms.Diaphragm can be in equipment be located at before the sensor and/or afterwards along the transport path of value document.Here, the time interval of the signal of two diaphragms that movement velocity can be arranged according to keeping at a certain distance away along transport path determines, for example by other structure of the time interval at value document edge or signal.But movement velocity also can for example be passed through induction system, passes through value document, passes through paper or pass through the synkinetic wheel mechanical type of web definite by one.
But also can be designed for the movement velocity that defines value document by sensor of the present invention itself.For example, for this reason can be in sensor integrated one or more diaphragms.For example, sensor has a diaphragm along transport path for this purpose before the detecting area of detector, and sensor is used in check die-away time with the fluorescence signal of detecting area, and an aperture arrangement after this.Therefore in the known situation of diaphragm distance, can according to the value document edge the time apart from or other structure of diaphragm signal determine movement velocity.When length known in value document length or a kind of structure of value document is known, also can determine movement velocity according to the signal of unique sensor diaphragm.
But the movement velocity of value document also can be determined by the fluorescence signal that sensor detects.For example, movement velocity can by relatively being determined by at least two fluorescence signals of surveying as the function of time in the detector, for example be passed through the relatively fluorescence signal of first and second detector.This time distance that fluorescence signal relatively is provided is owing to detector offsets in position along direction of motion, so by distance detection this moment fluorescence signal., can for example use the time distance of some structure of fluorescence signal here, or increase or the decay of the fluorescence signal of surveying at value document leading edge or trailing edge place.Offset along the known space of throughput direction according to time distance and the detector measured, can determine the movement velocity of each value document.When length known in value document length or a kind of structure of value document is known, also can determine movement velocity according to the fluorescence signal of the unique detector of sensor.
Sensor especially is set to, and the movement velocity that moves relative to each other according to value document when the verifying valuable documents and sensor selects to be used for the fluorescence signal of check fluorescence decay time.For example sensor setting is, if be lower than the First Speed threshold value of movement velocity, then checks the die-away time of fluorescence as the basis take the first and second fluorescence signals.In addition, if be higher than the second speed threshold value of movement velocity, then check the die-away time of fluorescence as the basis take the first and the 3rd fluorescence signal, wherein the second speed threshold value is more than or equal to the First Speed threshold value.In addition, if between first and second threshold speed, then can check take first, second, and third fluorescence signal the die-away time of fluorescence as the basis.In order to check the die-away time of fluorescence, sensor is for example set up the proportionate relationship of the second and first fluorescence signal and/or the proportionate relationship of the 3rd and first fluorescence signal.Each proportionate relationship can be for example with one or more threshold ratios, purpose is whether check is shorter than or surpasses official hour die-away time, or is in the official hour window.
By a kind of embodiment, the first detector has a kind of spectral response, the spectral response of this spectral response and the second detector and different with the spectral response of the 3rd detector.The difference of the spectral response of the spectral response of the first detector and the second and the 3rd detector is, can or pass through the first detector, or respectively both by second also by the 3rd detector, the value document that detection will be checked additional, be in from its die-away time by the utilizing emitted light in the different spectral region of fluorescence of sensor check.Compare with the fluorescence of checking its die-away time, additional utilizing emitted light can be in the spectral region that wavelength is longer or wavelength is shorter.For example, additional utilizing emitted light can only be surveyed with the first detector, and all can not survey respectively additional utilizing emitted light by the second and the 3rd detector.As alternative, additional utilizing emitted light can only be surveyed with the second and the 3rd detector respectively, and can not survey additional utilizing emitted light by the first detector.In order to obtain the different spectral response of detector, can use dissimilar detectors, but the first detector can use also and the employed different spectral filter of the second and the 3rd detector.Additional utilizing emitted light can be a kind of fluorescence of value document equally.
Add, for its check arranges the utilizing emitted light of sensor, can be a kind of utilizing emitted light that is sent by the same value document of its fluorescence decay time of check.Here, the additional emission light in a zone of verifying valuable documents for example, this zone is in outside the value document zone that value document sends above-mentioned fluorescence.Two value document zones of this of value document can be the value document districts that is separated from each other or overlap.But in the sort of situation, preferably outside the overlay region, check the die-away time of fluorescence in the back.But additional utilizing emitted light also can be the utilizing emitted light of other value document different from that value document that is verified the die-away time of its fluorescence.
In measurement plane, detecting area in front is preferred overlapping with the section of illumination like this, so that when verifying valuable documents, only throw light on exciting light in front the subregion of detecting area, observes the detecting area terminal that this subregion is in the front along direction of motion.The illuminated subregion of detecting area in front is along direction of motion is observed from front detecting area center or a position after detecting area center in front extends to detecting area in front terminal always.Along direction of motion, from the top of in front detecting area until the center, in measurement plane in front detecting area and the section of illumination between do not exist overlapping.Preferably, the subregion that detecting area in front is illuminated, be included in by area the front detecting area 20% to 50% between.
By a kind of embodiment, the first detecting area is overlapping with the section of illumination like this in measurement plane so that when value document check only with the throw light on subregion of the first detecting area of exciting light, along the direction of motion observation, this subregion is in the top of the first detecting area.Observe along direction of motion, the center of illumination section for example is positioned at before the first detecting area.The subregion that the first detecting area is illuminated is observed along direction of motion, preferably extends to the center of the first detecting area from the top of the first detecting area always.Here, along direction of motion, the central straight from the first detecting area in measurement plane is extremely not overlapping with the surround from the terminal of the first detecting area.In the present embodiment, in all detecting areas, the first detecting area is overlapping at most with illuminated section in measurement plane.Preferably, the illuminated subregion of the first detecting area comprises 30% of the first detecting area at least by area.Especially, the first detecting area is so overlapping with the section of illumination, so that the first detecting area of half optical illumination that is excited is arranged when verifying valuable documents basically.
In addition, the present invention relates to a kind of equipment, it is designed for uses by the sensor for verifying valuable documents of the present invention.This equipment can be that a kind of value document inspection machine of verifying valuable documents authenticity, a kind of value document deposit equipment or processor in, and it can be checked and in case of necessity can the sorting value document.
The invention still further relates in addition a kind of method of verifying valuable documents, comprise the following steps: that value document and the sensor that is provided for verifying valuable documents move relative to each other for verifying valuable documents, here value document moves with respect to sensor with respect to illuminated section along direction of motion.By a section on lighting device lighting sensor measurement plane, thus at value document during with respect to sensor with respect to the motion of illuminated section, in this illuminated section with the exciting light value document that throws light on.Sensor has the detector of a plurality of detection fluorescence, and fluorescence is sent in the different detecting area of measurement plane by the value document with the exciting light illumination.Then, take the fluorescence signal of detector as basis, the die-away time of the fluorescence of verifying valuable documents.The detecting area of detector is staggered each other along the direction of motion of value document.In detection steps, the first detector produces the first fluorescence signal of the first detecting area, the first detecting area is overlapping with illuminated section in measurement plane, and second detector be created in the second fluorescence signal of the detecting area of front, this detecting area along direction of motion observe in measurement plane, be in the first detecting area before.
In addition, in detection steps, the 3rd detector can produce the 3rd fluorescence signal of detecting area subsequently, this detecting area is in the first detecting area along the direction of motion observation in measurement plane after.Be similar to other sensor tip of sensor to the characteristics of their designs, in by method of the present invention, can implement corresponding method step.
Relative motion between sensor and the value document that will check can be implemented by the said equipment.All the other method steps can be implemented by the sensor.Lighting device can be the ingredient of sensor.Die-away time can be by sensor check itself.But as alternative, the check of die-away time also can be in the outside enforcement of sensor.
The below illustrates the present invention by accompanying drawing.In the accompanying drawings:
Fig. 1 a-c schematically illustrate sensor and illumination path and illumination section B (Fig. 1 a, 1c) and with the structure of surveying light path and detecting area D1, D2, D3 (Fig. 1 b, 1c);
Fig. 2 a-b represents relative layout by illumination section with the detecting area of two kinds of embodiment with the vertical view on sensor measurement plane;
Fig. 3 a-d represents that the fluorescence intensity conduct is along the change curve of the function of the position x of value document direction of motion, for two kinds of different movement velocitys and two kinds of different die-away times;
Fig. 4 a-c represents that fluorescence signal S1, the S2 of detector D1, D2 and D3 and S3 are as the function of die-away time, for two kinds of different movement velocitys;
Fig. 5 a-b represent the proportionate relationship S3/S1 of the 3rd and first fluorescence signal as the function of die-away time (Fig. 5 a) and the proportionate relationship S2/S1 of the second and first fluorescence signal as the function (Fig. 5 b) of die-away time.
Fig. 1 a-c schematically illustrates sensor 100 structures (x-z plane) for verifying valuable documents.Value document W moves with respect to sensor 100 and meanwhile passes through the measurement plane E of sensor 100 along direction of motion T.Here the value document plane is in the measurement plane E of sensor 100 substantially.For verifying valuable documents, it moves through the illumination section B of measurement plane E, and in the illumination section B, the exciting light of the lighting device 8 of sensor 100 is radiated on the measurement plane, referring to Fig. 1 a.Through lens 9 guiding optical splitters 6, it turns to a part of exciting light to the light path of exciting light and exciting light points to measurement plane E from optical splitter 6 through another lens 7 from lighting device 8.The exciting light of lighting device 8 makes the fluorescence of value document W be gone out by optical excitation, and for example can be in ultraviolet ray, in visible light or the ultrared spectral region.Can for example use lamp, one or more light emitting diode or one or more laser instrument as lighting device.
This outer sensor also contains a plurality of detectors 1,2,3, and they can for example be installed on the common support 4.Can for example use single photodiode or single phototransistor as detector, but also can use photodetector row or 2 D photoelectric detector array for this reason, their each element consists of detector.Each probe designs is used for surveying the fluorescence of value document, and it can be in ultraviolet ray, visible light or the ultrared spectral region.Detector can be provided with the spectral filter (not shown), and it suppresses the spectral range of illumination light and/or can only see through the fluorescence that will survey.Detector is surveyed by each of each detector and is in the fluorescence that the detecting area in the measurement plane E sends.Therefore the first detector 1 is surveyed the fluorescence that is sent by the first detecting area D1, the second detector 2 is surveyed the fluorescence that is sent by in front detecting area D2, before detecting area D2 in front is in the first detecting area D1 along the direction of motion T of value document, and the 3rd detector 3 survey the fluorescence that is sent by subsequently detecting area D3, after detecting area D3 subsequently is in the first detecting area D1 along the direction of motion T of value document W, referring to Fig. 1 b.The fluorescence scioptics 7 of each detecting area D1-D3 are assembled, and through optical splitter 6 and scioptics 5, focus on each detector 1-3.
Along the moving of direction of motion T, that value document district that not only just in time is in the illumination section B sends fluorescence, and also sends fluorescence along the connected value document of direction of motion T district by value document W.The first detecting area D1 and detecting area D2 in front orientate as, and they and illumination section B are overlapped.Detecting area D3 subsequently is in outside the illumination section B, referring to Fig. 1 c in this example.At value document W with respect to sensor between 100 moving periods, the fluorescence of value document W for example on whole value document W by detector 1,2,3 continuous probe.
Fig. 2 a represents the vertical view (x-y plane) of the measurement plane E of sensor 100, and vertical view can be found out the relative layout of illumination section B and detecting area D1, D2, D3 thus.The shape of illumination section B and detecting area D1, D2, D3 can be arbitrarily.The shape of the section B of throwing light in this example is rectangle, and the shape of detecting area D1, D2, D3 is circular.Illumination section B and the first detecting area D1 are overlapping in the illuminated subregion D10 of the first detecting area D1, and overlapping in the illuminated subregion D20 of described detecting area D2 in front with detecting area D2 in front.Value document W moves through the part of the measurement plane E that represents among Fig. 2 a along direction of motion T (x direction).
During value document W moves through the measurement plane E of sensor 100 along direction of motion T, the fluorescence intensity that detector 1,2,3 continuous probe are sent by value document W.In Fig. 3 a-d, mark and draw respectively the fluorescence intensity L of continuous probe, as the function of the position coordinates x that is parallel to value document W direction of motion T.Here, fluorescence intensity is represented by standardization or scale by at that time maximum of intensity.Ideally, move through detecting area D1, D2, D3 so long as evenly send the value document district of fluorescence, just always keep identical by detector 1,2,3 fluorescence intensities of plotting in Fig. 3 a-d of surveying.
In addition, above Fig. 3 a-d, be painted with respectively detecting area D1-D3 and illumination section B in corresponding x position.Fig. 3 a and 3c are illustrated in the movement velocity v of value document W
gFluorescence intensity in the low situation, Fig. 3 b and 3d represent high movement velocity v
hFluorescence intensity in the situation.Mark and draw respectively the fluorescence intensity L of " slowly " fluorescent material in Fig. 3 a and 3d, its fluorescence intensity has long τ die-away time
l, in Fig. 3 b and 3c, mark and draw respectively the fluorescence intensity L of " soon " fluorescent material, its fluorescence intensity has τ die-away time that lacks
kIn four kinds of all situations, detect the highest fluorescence intensity at the first detecting area D1.Can detect maybe among in front and detecting area D2 subsequently and the D3 and can detect great fluorescence intensity, depend on the die-away time of fluorescence and the movement velocity of value document W.
In Fig. 4 a-c for two kinds of different movement velocity v
gAnd v
h, the fluorescence signal S3 that represents the fluorescence signal S2 of fluorescence signal S1, the second detector 2 of the first detector 1 and the 3rd detector 3 respectively with the relation of fluorescence decay time τ.Has τ die-away time
l" slowly " fluorescence and harmonic motion speed v
gSituation under (situation shown in Fig. 3 a), the first detector 1 (the first detecting area D1) and the 3rd detector 3 (detecting area D3 subsequently) detect strong fluorescence signal S1 or S3, referring to Fig. 4 a and 4b.Otherwise the fluorescence signal S2 of the second detector 2 (detecting area D2 in front) is very little, referring to Fig. 4 c.In this case, in order to check the die-away time of fluorescence, use the first and the 3rd detector 1,3 fluorescence signal S1 and S3.Proportionate relationship S3/S1 can be for example set up for this purpose, the die-away time of fluorescence can be checked based on this and can determine clearly when needed, referring to Fig. 5 a.
Has τ die-away time
l" slowly " fluorescence and high movement velocity v
hSituation under (situation shown in Fig. 3 d) and have τ die-away time
k" soon " fluorescence and high movement velocity v
hSituation under (situation shown in Fig. 3 b), the first detector 1 (the first detecting area D1) and the 3rd detector 3 (detecting area D3 subsequently) detect strong fluorescence signal S1 or S3, referring to Fig. 4 a and 4b.Otherwise the fluorescence signal S2 of the second detector 2 (detecting area D2 in front) is very little, referring to Fig. 4 c.In order to check the die-away time of fluorescence, also use in this case the first and the 3rd detector 1,3 fluorescence signal S1 and S3.For this purpose, proportionate relationship S3/S1 can be for example set up, the die-away time of fluorescence can be checked based on this and can determine clearly when needed, referring to Fig. 5 a.
Has τ die-away time
k" soon " fluorescence and harmonic motion speed v
gSituation under (situation shown in Fig. 3 c), the first detector 1 (the first detecting area D1) detects strong fluorescence signal S1, referring to Fig. 4 a.Yet the fluorescence signal S3 of the 3rd detector 3 (detecting area D3 subsequently) is little to ignoring, referring to Fig. 4 b in this case.Otherwise the fluorescence signal S2 of the second detector 2 (detecting area D2 in front) is strong in this case, referring to Fig. 4 c.In order to check the die-away time of fluorescence, use in this case the first and second detectors 1,2 fluorescence signal S1 and S2.For this purpose, proportionate relationship S2/S1 can be for example set up, the die-away time of fluorescence can be checked based on this and can determine clearly when needed, referring to Fig. 5 b.
Lower or be in two kinds of movement velocity v
gAnd v
hBetween the situation of middle motion speed under, also can be by the die-away time of all three fluorescence signal S1, S2 and S3 check fluorescence.This moment is for example about the same in τ die-away time
kAnd τ
lτ die-away time of mean value all causes obvious fluorescence signal S1, S2, S3 in all three detectors 1,2 and 3.For example in certain medium speed's scope, can be by all three fluorescence signal S1, S2 and S3 check τ die-away time, for example by setting up two proportionate relationship S3/S1 and S2/S1, and than low velocity the time, can check by the first and second fluorescence signal S1, S2.
In the first modification of this embodiment, both all do not cover this additional spectral region to use its spectral response to cover the first detector 1, the second detector 2 of additional spectral region and the 3rd detector 3.For example, the spectral response of the first detector 1 extends to the longer spectral region of spectrum sensitive district wavelength than the second detector 2 and the 3rd detector 3 always.In this first modification, the first detector 1 detects obvious fluorescence signal, and it is corresponding to the additional fluorescence intensity that is in the described additional spectral region.The second detector 2 and the 3rd detector 3 all not by the fluorescence detection in these additional spectral region to fluorescence signal.This situation can confirm clearly to send additional utilizing emitted light, because can be different from all situations shown in Fig. 3,4 and 5 clearly.Because also have all the time there the second detector 2 or the 3rd detector 3 to detect obvious fluorescence signal.
In the second modification of this embodiment, the second detector 2 and the 3rd detector 3, the first detectors 1 that use their spectral response to cover respectively additional spectral region do not cover this additional spectral region.For example the spectral response of the second detector 2 and the 3rd detector 3 extends to respectively than the longer spectral region of the first detector 1 wavelength always.In this second modification, the second detector 2 and the 3rd detector 3 detect respectively obvious fluorescence signal, and it is corresponding to the additional fluorescence intensity that is in the described additional spectral region.The first detector 1 not by the fluorescence detection in these additional spectral region to fluorescence signal, only have the second or the 3rd detector to detect.In this modification, also can confirm clearly to send additional utilizing emitted light, and can be different from clearly Fig. 3,4 and 5 all situations.Because in any situation of these situations, the first detector 1 detects obvious fluorescence signal in the back.
Fig. 2 b represents another kind of embodiment, wherein sensor 100 has other detectors n, they survey the fluorescence of the value document W of illumination, and when value document moved with respect to sensor 100, the value document W of illumination sent fluorescence in other detecting areas Dn of measurement plane E.After described other detecting areas Dn is in the detecting area D2 of front along direction of motion T, but before being located at the first detecting area D1.First, second, third and other detectors 1,2,3, n can consist of by the photodetector array of one dimension, wherein probe designs is on same substrate for example.Be similar to first, second, and third detector, other detectors n produces other fluorescence signals Sn of other detecting areas Dn.Similar with the 3rd fluorescence signal, for some measuring condition maybe advantageously, also fluorescence signal Sn is used for checking die-away time, for example set up proportionate relationship Sn/S1 for this reason.In addition, sensor 100 can have other detectors m, and they survey the fluorescence of the value document W of illumination in other detecting areas Dm of measurement plane E.After these detecting areas Dm is in the first detecting area D1 along direction of motion T.Fluorescence signal Sm also can be used for the die-away time of check fluorescence.
Claims (15)
1. a sensor (100), be used for the value document (W) that check exists in sensor measurement plane (E), wherein, for verifying valuable documents, value document (W) moves relative to each other like this with sensor (100), value document (W) is moved with respect to sensor (100) along direction of motion (T), and described sensor comprises:
-lighting device (8), the section (B) that is used for illumination sensor measurement plane (E), when moving with respect to sensor (100) with convenient value document (10), in described section (B) with exciting light this value document (10) that throws light on, and
-a plurality of detectors (1,2,3, n), be used for surveying fluorescence, when the value document (W) with the exciting light illumination moves with respect to sensor (100), described value document (W) with exciting light illumination is at the different detecting area (D1 of measurement plane (E), D2, D3, Dn) send described fluorescence, wherein, detector (1,2,3, n) detecting area (D1, D2, D3, Dn) staggered each other along the direction of motion (T) of value document (W)
And wherein, sensor (100) is provided for fluorescence signal take detector (1,2,3, n) as the basis, the die-away time of the fluorescence of verifying valuable documents (W), it is characterized by:
The-the first detector (1) is provided for producing first fluorescence signal (S1) of the first detecting area (D1), and the first detecting area (D1) is overlapping with illuminated section (B) in measurement plane (E), and
The-the second detector (2) is provided for being created in second fluorescence signal (S2) of the detecting area (D2) of front, and detecting area in front (D2) is observed along direction of motion (T) and be in the first detecting area (D1) before in measurement plane (E).
2. according to sensor claimed in claim 1, it is characterized by, the 3rd detector (3) of sensor is provided for producing the 3rd fluorescence signal (S3) of detecting area (D3) subsequently, and detecting area subsequently (D3) is observed along direction of motion (T) and be in the first detecting area (D1) afterwards in measurement plane (E).
3. according to sensor claimed in claim 2, it is characterized by, the first detector (1) has spectral response, the spectral response of this spectral response and the second detector (2) is different with the spectral response of the 3rd detector (3), so that can or pass through the first detector (1), respectively both by the second detector (2) also by the 3rd detector (3), the value document that detection will be checked (W) additional, be in the utilizing emitted light in the spectral region different from fluorescence.
4. according to the described sensor of one of aforementioned claim, it is characterized by, described sensor has one or more other detectors (n), they are provided for respectively producing another fluorescence signal (Sn) of another detecting area (Dn), wherein, another or other detecting area (Dn) along direction of motion (T) observe in measurement plane (E), be in described detecting area (D2) in front afterwards with the first detecting area (D1) before.
5. according to the described sensor of one of aforementioned claim, it is characterized by, described sensor setting is used for using under certain conditions the die-away time that the fluorescence signal (S1, Sn) of at least one other detector (1,2,3, n, m) of the second fluorescence signal (S2) and sensor (100) comes the fluorescence of verifying valuable documents.
6. according to the described sensor of one of aforementioned claim, it is characterized by, described sensor setting is, for the value document that will check (W), when die-away time of its fluorescence of expection when being shorter than the die-away time of regulation, use the fluorescence signal (S1, S3, Sn, Sm) of at least one other detector (1,2,3, n, m) of the second fluorescence signal (S2) and sensor (100) to check die-away time.
7. according to the described sensor of one of aforementioned claim, it is characterized by, described sensor setting is that the movement velocity that value document during according to verifying valuable documents (W) and sensor (100) move relative to each other selects to be used for the fluorescence signal (S1, S2, S3) of check fluorescence decay time.
8. according to the described sensor of one of aforementioned claim, it is characterized by, described sensor setting is, take the first fluorescence signal (S1) and the second fluorescence signal (S2) as basis, the die-away time of the fluorescence of verifying valuable documents (W).
9. according to the described sensor of one of aforementioned claim, it is characterized by, described sensor setting is, optionally with the first fluorescence signal (S1) and the second fluorescence signal (S2) or take the first fluorescence signal (S1) and the 3rd fluorescence signal (S3) as basis, the die-away time of the fluorescence of verifying valuable documents (W).
10. according to the described sensor of one of aforementioned claim, it is characterized by, described detecting area (D2) in front is overlapping like this with described illuminated section (B), so that when verifying valuable documents only with the subregion (D20) of the described detecting area (D2) in front of exciting light illumination, observe along direction of motion, described subregion (D20) is in the terminal of described detecting area (D2) in front.
11. according to sensor claimed in claim 10, it is characterized by, the illuminated subregion (D20) of described detecting area (D2) in front, observe along direction of motion, from the center of described detecting area (D2) in front or a position behind the center of described detecting area (D2) in front, extend to the terminal of the detecting area (D2) in described front always.
12. according to the described sensor of one of aforementioned claim, it is characterized by, the first detecting area (D1) is overlapping like this with described illuminated section (B), so that check when value document only with the throw light on subregion (D10) of the first detecting area (D1) of exciting light, observe along direction of motion, the subregion (D10) of this first detecting area (D1) is in the first detecting area (D1) top.
13. according to the described sensor of claim 12, it is characterized by, the subregion (D10) that described the first detecting area (D1) is illuminated is observed along direction of motion, extends at least the center of the first detecting area (D1) from the top of the first detecting area (D1) always.
14. one kind by the equipment according to one or more described sensor verifying valuable documents in the aforementioned claim.
15. one kind especially by the method according to one or more described sensor verifying valuable documents among the claim 1-14, comprises the following steps:
-the value document that check along direction of motion (T) with respect to the sensor movement that is provided for verifying valuable documents, wherein, value document along direction of motion (T) with respect to sensor movement,
-section (B) by lighting device (8) illumination sensor measurement plane (E), so the value document optical illumination that when moving with respect to sensor (100), in this illuminated section (B), is excited,
-survey fluorescence by a plurality of detectors, when the value document (W) with the exciting light illumination moves with respect to sensor (100), described fluorescence is by the different detecting area (D1 of described value document (W) with exciting light illumination at measurement plane (E), D2, D3) send, wherein, detecting area (the D1 of detector, D2, D3) staggered each other along the direction of motion (T) of value document, and wherein, the first detector (1) produces first fluorescence signal (S1) of the first detecting area (D1), the first detecting area (D1) is overlapping with illuminated section (B) in measurement plane, and second detector (2) be created in second fluorescence signal (S2) of the detecting area (D2) of front, described detecting area (D2) is in front observed along direction of motion (T) and is in the first detecting area (D1) before in measurement plane
-take the fluorescence signal of detector as basis, the die-away time of the fluorescence of verifying valuable documents.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010014912A DE102010014912A1 (en) | 2010-04-14 | 2010-04-14 | Sensor for checking value documents |
| DE102010014912.8 | 2010-04-14 | ||
| PCT/EP2011/001849 WO2011128080A1 (en) | 2010-04-14 | 2011-04-12 | Sensor for verifying value documents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102893309A true CN102893309A (en) | 2013-01-23 |
| CN102893309B CN102893309B (en) | 2016-08-24 |
Family
ID=44246308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180024229.3A Active CN102893309B (en) | 2010-04-14 | 2011-04-12 | Sensor for verifying valuable file |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2559010B1 (en) |
| CN (1) | CN102893309B (en) |
| DE (1) | DE102010014912A1 (en) |
| ES (1) | ES2886756T3 (en) |
| MX (1) | MX2012010028A (en) |
| RU (1) | RU2549122C2 (en) |
| WO (1) | WO2011128080A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019194152A1 (en) | 2018-04-05 | 2019-10-10 | グローリー株式会社 | Light detection sensor, light detection device, sheets processing device, and light detection method |
| CN112203863A (en) * | 2018-04-17 | 2021-01-08 | 联邦印制有限公司 | Security feature based on luminescent material and facility for authentication that can be authenticated by a smartphone |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3133562B1 (en) * | 2014-04-18 | 2023-02-15 | Glory Ltd. | Paper-sheet authenticity determination device and paper-sheet authenticity determination method |
| DE102021000807A1 (en) * | 2021-02-16 | 2022-08-18 | Giesecke+Devrient Currency Technology Gmbh | Sensor for checking documents of value |
| US20240233468A9 (en) * | 2021-02-16 | 2024-07-11 | Giesecke+Devrient Currency Technology Gmbh | Sensor for verifying the luminescence of value documents |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1423800A (en) * | 2000-01-21 | 2003-06-11 | 福来克斯产品公司 | Automated verification system and methods for use with optical interference devices |
| CN1429379A (en) * | 2000-05-16 | 2003-07-09 | 西柏控股有限公司 | Method, device and security system for authenticating marking |
| DE10322794A1 (en) * | 2003-05-19 | 2004-12-23 | Bundesdruckerei Gmbh | Sensor for the authenticity detection of a luminescent security element of a value document, value document and method for producing a value document |
| EP1814058A1 (en) * | 2006-01-26 | 2007-08-01 | Siemens Aktiengesellschaft | Method and device for measuring the reduction and/or change in the luminescence intensity of a phosphor |
| CN101140668A (en) * | 2006-08-23 | 2008-03-12 | 纳幕尔杜邦公司 | Method and apparatus for verifying the authenticity of an item by detecting encoded luminescent security markers |
| CN101375317A (en) * | 2005-12-16 | 2009-02-25 | 费尔特罗纳有限公司 | Detector and method of detection |
| CN201311676Y (en) * | 2008-08-09 | 2009-09-16 | 深圳贝斯特机械电子有限公司 | RMB-banknote discriminating device |
| CN101542543A (en) * | 2006-09-27 | 2009-09-23 | 德国捷德有限公司 | Apparatus and method for the optical examination of value documents |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1449107B1 (en) * | 1961-04-15 | 1969-09-04 | Telefunken Patent | Method for scanning recording media, the scanning field of which is provided with luminescent characters, in particular for automatic sorting of mail items |
| DE69118429T2 (en) * | 1990-01-26 | 1996-09-12 | Canon Kk | Method of measuring a species using fluorescent light |
| ES2103330T3 (en) * | 1991-10-14 | 1997-09-16 | Mars Inc | DEVICE FOR OPTICAL RECOGNITION OF DOCUMENTS. |
| US5674698A (en) * | 1992-09-14 | 1997-10-07 | Sri International | Up-converting reporters for biological and other assays using laser excitation techniques |
| DE19651101A1 (en) * | 1996-12-09 | 1998-06-10 | Giesecke & Devrient Gmbh | Device and method for the detection of fluorescent and phosphorescent light |
| US6091563A (en) * | 1997-09-26 | 2000-07-18 | Iomega Corporation | Latent illuminance discrimination marker system for data storage cartridges |
| US6380547B1 (en) * | 1998-06-09 | 2002-04-30 | Manuel E. Gonzalez | Tagging compositions and methods |
| EP1237128B1 (en) * | 2001-03-01 | 2012-08-01 | Sicpa Holding Sa | Improved luminescence characteristics detector |
| DE10346631A1 (en) * | 2003-10-08 | 2005-05-19 | Giesecke & Devrient Gmbh | value document |
-
2010
- 2010-04-14 DE DE102010014912A patent/DE102010014912A1/en not_active Withdrawn
-
2011
- 2011-04-12 EP EP11715177.9A patent/EP2559010B1/en active Active
- 2011-04-12 ES ES11715177T patent/ES2886756T3/en active Active
- 2011-04-12 WO PCT/EP2011/001849 patent/WO2011128080A1/en active Application Filing
- 2011-04-12 RU RU2012148171/08A patent/RU2549122C2/en active
- 2011-04-12 MX MX2012010028A patent/MX2012010028A/en active IP Right Grant
- 2011-04-12 CN CN201180024229.3A patent/CN102893309B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1423800A (en) * | 2000-01-21 | 2003-06-11 | 福来克斯产品公司 | Automated verification system and methods for use with optical interference devices |
| CN1429379A (en) * | 2000-05-16 | 2003-07-09 | 西柏控股有限公司 | Method, device and security system for authenticating marking |
| DE10322794A1 (en) * | 2003-05-19 | 2004-12-23 | Bundesdruckerei Gmbh | Sensor for the authenticity detection of a luminescent security element of a value document, value document and method for producing a value document |
| CN101375317A (en) * | 2005-12-16 | 2009-02-25 | 费尔特罗纳有限公司 | Detector and method of detection |
| EP1814058A1 (en) * | 2006-01-26 | 2007-08-01 | Siemens Aktiengesellschaft | Method and device for measuring the reduction and/or change in the luminescence intensity of a phosphor |
| CN101140668A (en) * | 2006-08-23 | 2008-03-12 | 纳幕尔杜邦公司 | Method and apparatus for verifying the authenticity of an item by detecting encoded luminescent security markers |
| CN101542543A (en) * | 2006-09-27 | 2009-09-23 | 德国捷德有限公司 | Apparatus and method for the optical examination of value documents |
| CN201311676Y (en) * | 2008-08-09 | 2009-09-16 | 深圳贝斯特机械电子有限公司 | RMB-banknote discriminating device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019194152A1 (en) | 2018-04-05 | 2019-10-10 | グローリー株式会社 | Light detection sensor, light detection device, sheets processing device, and light detection method |
| US11656183B2 (en) | 2018-04-05 | 2023-05-23 | Glory Ltd. | Light detection sensor, light detection device, sheet processing device, and light detection method |
| CN112203863A (en) * | 2018-04-17 | 2021-01-08 | 联邦印制有限公司 | Security feature based on luminescent material and facility for authentication that can be authenticated by a smartphone |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2886756T3 (en) | 2021-12-20 |
| MX2012010028A (en) | 2012-09-21 |
| DE102010014912A1 (en) | 2011-10-20 |
| CN102893309B (en) | 2016-08-24 |
| EP2559010B1 (en) | 2021-08-18 |
| EP2559010A1 (en) | 2013-02-20 |
| RU2012148171A (en) | 2014-05-20 |
| RU2549122C2 (en) | 2015-04-20 |
| WO2011128080A1 (en) | 2011-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102893309A (en) | Sensor for verifying value documents | |
| CN209034912U (en) | The screening installation of object or plastic object containing mineral | |
| US6744525B2 (en) | Optically-based system for processing banknotes based on security feature emissions | |
| EP3147873B1 (en) | Fluorescence/phosphorescence detection device | |
| CN101542543B (en) | Apparatus and method for the optical examination of value documents | |
| EP2599059B1 (en) | Detection device | |
| CN103597522A (en) | In-line decay-time scanner | |
| CN105913545A (en) | Fluorescence and phosphorescence detection device, fluorescence and phosphorescence detection method, and paper-sheet processing device | |
| CN104094104A (en) | Device and method for identifying defects within the volume of a transparent pane and use of the device | |
| AU2009259721A1 (en) | Sensor device for the spectrally resolved capture of valuable documents and a corresponding method | |
| US7376251B2 (en) | Electronic image evaluating device and evalution method | |
| CN106338341B (en) | Spectroscopic detector | |
| AU2013362193B2 (en) | Sensor and method for checking valuable documents | |
| CN103907000B (en) | For checking the sensor of value document | |
| CN101542269A (en) | Multivariate detection of molecules in biossay | |
| CN100562898C (en) | The apparatus and method of verifying valuable documents | |
| WO2002075672A1 (en) | Sheet detecting assembly and method | |
| CN112334957B (en) | Method and sensor for testing documents | |
| ATE396942T1 (en) | OPTICAL DUAL FEED DETECTION | |
| CN1637408B (en) | Correction method for the distribution of quantity of light and biochip-reader | |
| CN101297328B (en) | Photo sensor array for banknote evaluation | |
| US9905069B1 (en) | Optically based bankenote authentication system having broke discrimination | |
| JP2014235577A (en) | Identification device for paper sheets and optical sensor device | |
| JP4673509B2 (en) | Luminescence detection device | |
| RU35455U1 (en) | Banknote authentication device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1178301 Country of ref document: HK |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: GR Ref document number: 1178301 Country of ref document: HK |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180315 Address after: Munich, Germany Patentee after: Jiejia German currency Technology Co., Ltd. Address before: Munich, Germany Patentee before: Giesecke & Devrient GmbH |
|
| TR01 | Transfer of patent right |