CN1347538A - Double sheet detector for automated transaction machine - Google Patents

Abstract

An automated transaction machine includes apparatus for distinguishing between single sheets and multiple sheets in a sheet path. The apparatus includes radiation emitters (14, 34) and radiation detectors (20, 40, 42). The radiation emitters are operated to emit radiation at periodic intervals. Signal conditioners (50) receive signals from the radiation detectors and generate outputs responsive to the intensities sensed by the detectors substantially only during the periodic intervals. The outputs are combined, weighed and/or compared to thresholds to distinguish single and multiple sheets. The apparatus enables reliable operation in noisy electrical environments and with a wide variety of sheet properties.

Description

Double sheet detector for automated transaction machine

Technical field

Present invention relates in general to be used for having the pick-up unit that improves signal to noise ratio (S/N ratio) at electrical noise environment.More particularly, the present invention relates in automated transaction machine, be used for a kind of synchronous discriminating pick-up unit of ticket medium.Described automated transaction machine comprises that auto-teller or any other can represent the machine that transfers of value.

Background technology

Automated transaction machine, be with circuit and comprise motor, transformer, relay especially for the auto-teller that carries out banking (ATM), parts such as coil and other drive unit carry out work, and all these circuit and parts can both produce unwanted electric signal or " noise ".

An important function of auto-teller is to allot and accept ticket.This ticket can have polytype.Wherein modal is the currency or the bill of paper money issued by a provincial bank to be circulated in a given area form.Sometimes, two or many bills (ticket) can be owing to the bill surface situations, moist or other weather conditions and sticking together each other.Hope can detect this situation before allotting bill.Also similar situation can take place in the currency receiver, two or many bills stick together and can cause mismatch in accepting the currency process.

Worked out all thickness detecting methods physically, but the variation of the bill surface characteristic that has taken place and unused stamp make two thickness of opening bills detect difficulty has taken place according to comparing in circulation.If in allocation work, detect sensitivity inadequately, just might allot away many bills, and cause damage by ATM operator.If measuring ability is too sensitive, thicker sola bill is converted direction and can not allots away, makes ATM need unnecessarily frequently to replenish bill.

The detection method of electricity and optics is subjected to the influence of electrical noise in the ATM environment.The sensitivity of the electric and optical means work of this noise effect.Signal intensity must be enough high, detects on ATM electrical noise background with activation.And increasing the signal intensity power of having relatively high expectations, this works under higher-wattage with regard to the component that requires high nominal power and does not undermine sensitivity, but also requires to avoid as the problem in saturated and so on the operation of signal.

The precision of radial pattern ticket thickness detection apparatus might be subjected to the influence of ticket color distinction.For example, the radiant quantity that usually absorbs of Shen Se ticket just than the ticket of paler colour for many.The different material that country variant is used for currency has different radiation absorption characteristics.This will make it be difficult to make difference between individual and many bills.Concerning having the automated transaction machine of making differentiation between individual and many tickets of different radiation absorption characteristics and reflection characteristic, this is a difficult problem beyond doubt.

Therefore need a kind of pick-up unit of improved ticket thickness and detection method so that between individual and many tickets of allotting by automated transaction machine, make difference.

Disclosure of invention

An object of the present invention is to provide a kind of apparatus and method that are used for automated transaction machine, detect the thickness of the ticket medium of allotting or accepting with a pick-up unit.

Another object of the present invention provides a kind of apparatus and method that are used for automated transaction machine, detects the ticket medium thickness of allotting or accepting with a pick-up unit, and this pick-up unit comprises a light source and a fluorescence detector.

Another purpose of the present invention provides a kind of apparatus and method that are used for automated transaction machine, detects the thickness of the ticket medium allotting or accepting with a pick-up unit, and this pick-up unit comprises an infrared origin and an infrared radiation detection device.

A further object of the present invention provides a kind of apparatus and method that are used for automated transaction machine, detects the ticket medium thickness of allotting or accepting with a pick-up unit, and this pick-up unit comprises a light-pulse generator and a fluorescence detector.

Another purpose of the present invention provides a kind of apparatus and method that are used for automated transaction machine, detects the thickness of the ticket medium allotting or receiving with a pick-up unit, and this pick-up unit comprises a light-pulse generator and one and the synchronous fluorescence detector of light-pulse generator.

Another object of the present invention provides a kind of apparatus and method that are used for automated transaction machine, detect the ticket medium thickness of allotting or receiving with a pick-up unit, this pick-up unit comprises a light-pulse generator and one and a synchronous fluorescence detector and the Discr. of light-pulse generator, and this Discr. helps signal and light source synchronously and other signal of decaying.

Another purpose of the present invention provides a kind of apparatus and method that are used for automated transaction machine, detect the thickness of the ticket medium of allotting or receiving with a pick-up unit, this pick-up unit comprises an impulse radiation source, the Discr. that a synchronous radiation detector and a pair of frequency and phase place are all responsive.

A further object of the present invention provides a kind of apparatus and method that are used for automated transaction machine, to use a pick-up unit to detect the thickness of the ticket medium of allotting or receiving, this pick-up unit comprises an impulse radiation source, and one is used for the synchrotron radiation detecting device and the quick Discr. of a pair of frequency and phase place Turin that not only can detect a radiation laser beam that is reflected but also can detect the radiation laser beam that sees through.

Another purpose of the present invention provides a kind of pick-up unit and method that is used for automated transaction machine, and this pick-up unit can be reliably differentiated individual and overlapping double sheet with different radiation reflections and radiation absorption characteristics out.

Another object of the present invention provides a kind of apparatus and method that are used for automated transaction machine, and it is economy but also measure the thickness of ticket medium reliably not only.

A further object of the present invention provides a kind of method in order to the accuracy of detection that improves the pick-up unit in the automated banking machine.

Other purposes of the present invention are implemented below will become in best mode of the present invention and the appending claims and are more known Er Ming Liao.

Aforementioned all purposes of the present invention are achieved in a preferred embodiment of an automated transaction machine.This exemplary embodiment comprises that one has the ticket thickness detector of sync discriminator.Sync discriminator in this exemplary embodiment of the present invention comprises a radiation source, one or more radiation detector, a prime amplifier, a synchronous chopper and an integrator.

Described radiation source preferably includes a light emitting diode (LED), it by one drive circuit with a selected sequential firing pulsed light.This LED preferably includes an infrared transmitter (IR LED).First of this infrared transmitter (IR LED) irradiation one ticket, currency ticket for example, a part of infrared signal is launched thereon, and a part sees through ticket.Reflected light beam intensities and ticket thickness are in direct ratio, and the intensity of transmitted light beam then is inversely proportional to ticket thickness.That is, when forming detected ticket medium number and increase, more light beam will be arranged by from the medium reflection and less light beam sees through from medium.In addition, the general darkness (colour pattern) with tested ticket of the intensity of the intensity of folded light beam and the light beam that sees through is inverse proportion.

Be used to reflect and the radiation detector of transmitted component preferably photodiode or phototriode.In an exemplary embodiment, the output of each detecting device is carried out amplification, and is transported to the input end of a synchronous chopper circuit, and this chopper circuit is also referred to as chopper here.The pulse pattern of chopper and driving LED synchronous one is shown only processing and the synchronous signal of LED.Chopper output is synchronously handled to produce the signal of the detected ticket thickness of a representative by an integrator circuit.

Other embodiment of the present invention can comprise a plurality of radiation sources that are positioned at ticket medium two opposite sides.These embodiment also can comprise and are used for detecting from the transmission of each radiation source and the detecting device of radiation reflected line amount.Each radiation source preferably drove with the method for synchronization in the different time, and became the relation of coordination mutually by the working hour (cycle) of signal with the relevant radiation source of detector processes.With the transmission of each side radiation source of ticket medium with the corresponding signal of radiation reflected line amount is combinable or handle so that distinguish individual and many tickets with different transmissions and reflection characteristic with additive method.Some embodiment that radiation source can exempt to be detected respectively intrusively can be operated in equitant interval (at interval).Principle of the present invention also can together be used with the detecting device of other types.

The simple description of accompanying drawing

Fig. 1 is the schematic side elevation of a radiation source and a radiation detector, and wherein detecting device detects from ticket media surface radiation reflected line.

Fig. 2 is a schematic side elevation, wherein has: a radiation source, first radiation detector are used to detect from the radiant rays of a ticket surface reflection and one second radiation detector and are used to detect radiant rays through the transmission of ticket.

Fig. 3 is the exemplary electrical circuit synoptic diagram of a synchronous Discr., and this Discr. has a radiation source driver level, a prime amplifier level, a synchronous chopper level and an integrator stage.

Fig. 4 is a drive signal, and it has a high state and a low state is used to make the radiation source of Fig. 1-3 and detecting device to send out pulse.

Fig. 5 is the schematic diagram of an exemplary automated transaction machine, comprises ticket pick-up unit of the present invention in the machine.

Fig. 6 is of the present invention first alternative embodiment synoptic diagram, comprises two radiation transmitters among this embodiment, and one first radiator produces the radiant rays of directive one ticket.

Fig. 7 is the explanatory view of this alternative embodiment shown in Figure 6, and this another transmitter is expressed as and launches among the figure.

Fig. 8 is a synoptic diagram, represents to be used for driving in embodiment illustrated in fig. 6 the waveform of transmitter, and waveform represents that all transmitters produce all period interval of radiant rays.

Fig. 9 is an explanatory view, and the parts that wherein show being used for Fig. 6 embodiment carry out Signal Regulation, weighting, combination and situation relatively.

Figure 10 is an explanatory view, wherein shows the parts that are used for another embodiment of the present invention are carried out the situation that exemplary signal is regulated.

Figure 11 one is used for the transmitter of the another alternative embodiment of the present invention and the synoptic diagram of detecting device.

The better model that carries out an invention

Now see also accompanying drawing, at first consult Fig. 1.There is shown the detected ticket medium 12 of a radiation source and reflected radiation thread detector assembly 10 and.Ticket 12 ticket that normally circulates, bill, coupon, the ticket that paper money or other representatives are worth.One radiation source 14 makes and is expressed as 16 radiant rays and is mapped on the one side of ticket 12.Radiation reflected line 18 is detected by detecting device 20 or with additive method.Come the signal of self-detector 20 corresponding with the radiation reflected line strength.

Fig. 2 shows an alternative embodiment of the invention.This embodiment comprises radiation detector module 30, comprising the radiant rays detecting device 44 and detected ticket medium 12 of a radiation source 34, one radiation reflected thread detectors 40, one transmissions.Radiation source 34 is penetrated the radiant rays 36 that schematically shows on the one side of ticket 12.Part radiant rays 36 is by the reflection of the face of a neighbouring surface of ticket 12, and ticket is crossed in a part of transmission.The present invention will here be pointed out that, the intensity or the density of radiation reflected line 38 normally is directly proportional with the thickness that is detected ticket 12 from the radiant rays concrete area pointed.And the intensity of the radiant rays 42 of transmission thickness common and ticket is inversely proportional to.The intensity of the radiant rays 42 of radiation reflected line 38 and transmission all is inverse proportion mutually with " darkness " or the radiation absorptive character of ticket 12 on detected area usually.

In the embodiment shown in Figure 2, radiation reflected line 38 is detected by reflection detecting device 40.42 of radioparents are detected by transmission detector 44.Reflection detecting device 40 and transmission detector 42 produce the signal of representing the radiant rays intensity of surveying separately.Combination or handle these two signals with additive method and go to improve detectability to the thickness of ticket 12 is come thereby individual ticket distinguished from two or other many overlapping tickets.

Best, the radiation source 14,34th shown in Fig. 1 and Fig. 2 is launched ultrared light emitting diode (IR LED).Therefore radiation beam 16,36 radiation reflected wire harness 18,38 and transmission wire harness 42 preferably also are infrared rays.Radiation detector 20,40,44 preferably are suitable for detecting the photodiode or the phototriode of red line.Should be understood that, and also can use the radiation source of other types and the detecting device of other types in other embodiments, be included in the radiation source in visible and the invisible light scope.

As shown in Figure 3, a synchronous Discr. of an one exemplary embodiment comprises a signal conditioner, and this regulator comprises a driver 60, one prime amplifiers 70, one synchronous chopper 80 and integrators 90.

Driver is as comprising that one has the driving circuit of transistor 65 and resistance 66,68.Driver 60 also comprises a radiation source 62, and it is an IR LED preferably.Radiation source 62 responses have the synchronizing signal 100 of selected pattern and do impulse radiation.Synchronizing signal 100 is added on the synchronous signal input end 69 of driver.One waveform of synchronizing signal 100 preferably that a high state and a low state arranged has been shown among Fig. 4, but also available other synchronizing signal.For example, one the train of impulses of 50% dutycycle is arranged is exactly a kind of such waveform.As above in the face of the description of Fig. 2, a part of radiant rays that radiation source 62 produces will be reflected by medium 12 and form reflection wire harness 38 parts and then will become radioparent bundle 42 through medium 12.

Amplifier circuit shown in prime amplifier level 70 comprises.It comprises a photodiode 72.Photodiode 72 produces and the corresponding signal of radiant rays intensity that is detected.So diode 72 response reflection wire harness 38 or transmission wire harness 42 and produce signal.The prime amplifier level also comprises an operational amplifier 74.Other detecting elements that one phototriode maybe can produce signal also can be used for replacing photodiode 72.The output of operational amplifier 74 is imported into synchronous chopper 80.

In an exemplary embodiment, chopper 80 comprises that one has the operational amplifier 82 of positive input resistance 87, negative input resistance 88 and feedback resistance 89 synchronously.One analog switch 84 is connected the positive input terminal of operational amplifier 82.At synchronous signal input end 86, this analog switch 84 is driven by synchronizing signal 100.When synchronizing signal 100 during at noble potential, analog switch 84 is connected, thereby the positive input terminal of operational amplifier 82 is shorted to the earth.The short circuit positive input terminal becomes operational amplifier 82 to have the analog converter of-1 gain to the earth.When synchronizing signal 100 was electronegative potential, analog switch 84 just disconnected, and operational amplifier 82 just becomes and having gain and be+1 unity gain follower.The output of described operational amplifier 82 is imported into integrator stage 90.

Integrator 90 in the one exemplary embodiment comprises having positive input resistance 93, the operational amplifier 92 of negative input resistance 94 and feedback condenser 95.By with one calculate the output 110 that corresponding Signal Regulation produces integrator 90, make it to form the synchronous signal of general and synchronizing signal 100.In further embodiments, a bandpass filter can be used to replace an integrator 90.

A useful aspect of the sync discriminator in the embodiment of the invention is any general all will not be attenuated with the synchronous signal of synchronizing signal 100.50 pairs of frequencies of sync discriminator in the one exemplary embodiment and phase place all are responsive.Different with the independent bandpass filter that can not remove the noise of band in logical, the sync discriminator 50 of one exemplary embodiment is all decayed the general noise signal different with phase place with the frequency of synchronizing signal 100.

In the sync discriminator 50 of example, a reset signal 98 that is connected across the discharge switch 96 on the capacitor 95 is used for making integrator 90 to reset.Generally provide a reset signal in order that this integrator of the part that is used to analyze each ticket or a ticket is resetted.

The output 110 of integrator 90 provides an output of a synchronous Discr. 50, and the output function of this sync discriminator 50 can be expressed as: $y\left(t\right)=k{\∫}_0^{1}f\left(t\right)g\left(t\right)\mathrm{dt}$

G in the formula (t) is a synchronizing signal, and f (t) is that it comprises noise by photodiode 72 detected signals, and k is a constant.When synchronizing signal is the square wave of synchronizing signal 100 as shown in Figure 4, g (t) in sync discriminator 50 is+1 or-1.To each ticket that passes through, synchronous Discr. 50 just provides a signal like this, and this signal amplifies some signals from photodiode 72, and these signals all are synchronous with the radiant rays of radiation source 62 outputs on frequency and phase place.On behalf of the signal of noise, other then be attenuated.

Should be understood that, the circuit of this sync discriminator 50 is exemplary circuitry, in other embodiments, other forms of circuit and signal processing apparatus also can make and be used for distinguishing detector signal and decay other signals synchronous with relevant signal source aspect frequency and phase place.By radiation detector 20,40,42 signals that produce can be regulated by a synchronous Discr. separately.So just the transmission of this ticket in the zone of irradiation with radiation on ticket and the output signal of reflection characteristic are represented in generation respectively.Be used in the preferred versions of the present invention of automated transaction machine aspect, the transmission of a ticket and reflection characteristic are detected when ticket is mobile in the ticket path with respect to radiation source and detecting device.These tickets can pass through any suitable ticket mobile device, belt for example, and wheel picks each ground on the ticket path such as mechanism or its combined mechanism and moves.

The transmission of the representative ticket that sync discriminator is exported and each signal of reflection characteristic can be combined or handle so that determine it is not individual ticket together through other modes, but two or many tickets move those situations of device after testing.In automated transaction machine, detect that many tickets need often.Bank note or other tickets normally ground are picked and give the user's from source of supply by a picking device in automated transaction machine.Yet, because fault or other bill characteristics sometimes can once pick many tickets.Detect this many tickets and can make these tickets return in the machine or in machine, turn to, perhaps prevent to be distributed to the user with other modes.

As getting in touch in the above as described in Fig. 2, the intensity of radiation reflected line 38 is the thickness that is proportional to ticket 12, and the intensity of transmitted radiation line 42 then is inversely proportional to the thickness of ticket 12.And the darkness of the intensity of radiation reflected line 38 and transmission wire harness 42 both and ticket 12 is inversely proportional to.The method that (weighted) difference by a kind of weighting will be made up corresponding to these signals of reflection wire harness 38 and transmission wire harness 42 intensity has improved individual ticket and has detected with two and open or other comprise the distinguishing ability that detected ticket 12 is made comparisons between many interior tickets detections.

The intensity of reflection wire harness 38 helps to distinguish the color and the pattern (the relative darkness of for example detected ticket color) on ticket surface and strengthens distinguishing ability to double sheet.Can be when as a result, to rely on composite signal to measure tested ticket be individual or two opening to the more sensitive and less influence that is subjected to color of thickness.

As can be seen, here sync discriminator of Miao Shuing and method of work thereof also can be used for the application of other sensors to reach signal to noise ratio (S/N ratio) preferably, higher detection sensitivity and lower power requirement.Principle of the present invention is particularly useful in neighbourhood noise or the debatable occasion of signal error.

Represent the signal of transmission and reflection strength to be combined or with additive method respectively or with diverse ways handle together and be used for doing ticket be individual or two mensuration of opening.The method of being taked is decided by the character of detected ticket and the analysis of being carried out.For example, with export by a synchronous Discr. can convert digital signal to by an analog digital (A/D) converter with transmission and corresponding each signal of reflected value.These data-signal responder instructions can be made up, relatively or with additive method be handled together on a weighting basis by a processor or other signal processing apparatus then.By a processor according to corresponding to the detection numerical value of this detections radiation data and one or several fixing or programme on more changeable threshold values make comparisons, can make tested ticket and be individual or two (or many s') judgement.Usually, utilize the ticket of one or more types, decide the combination or the method for assessing signal by experiment and judge the threshold value that tested ticket is individual or many s' decision by machine processing.The threshold data that reflection that similar ticket produced under individual or many situations and transmission signal can form the weight coefficient that puts on signal and express the ticket situation, thus the ticket that is used to make detection is individual or two or many s' judgement.

Follow procedure instruction is the advantage that transmission and reflected signal are treated to digital signal, the different weights of signal, the distinct methods of signal combination, and with the comparison that threshold value is carried out, can respond different programmed instruction and in uniform machinery, carry out at an easy rate.The use of above-mentioned instruction is to be triggered by some inputs, these input expression ticket type, for example comprise the input that is illustrated in the ticket source in this machine, in the ticket path according to the input of the device of its type of sign test on the ticket, or user's input.

Though should be understood that, discussed here is the method that the radiant rays conversion of signals of the reflection of representative detection and transmission is become digital signal, also can use additive method.Can offer the circuit of simulating signal weighted sum combination of sync discriminator output and two or other many circuit that the ticket threshold value compares that these output signal values that record and one or more representative detected given type.The detected value that should be understood that, the tested ticket data of said response here and produce can be a value or several values, and said here threshold value can be one or several threshold value.

In some embodiments of the invention, in fact the output of sync discriminator can make up or handle on the whole length of the ticket of a process.This resets integrator by response to the detection of the leading edge of ticket and realizes.It can respond the decline of transmission value, and the rising of reflected value triggers or triggers by near an independent testing agency that points out to have detection components ticket to exist.Similarly, when ticket to be detected stopped, signal just no longer was integrated.Another kind of saying, represent the signal of transmission and reflection can be not be on particular or selected a plurality of parts, to handle on the whole length of ticket.Perhaps,, can accumulate,, make up or otherwise handled then with the accumulated value weighting to a ticket or its part with the corresponding signal of the radiation intensity of each detecting device.To distinguish out it be that individual or many are the most appropriate to method therefor decides to specific ticket according to being considered to.

Though in described embodiment, the signal that comes from radiation detector is to be handled to produce output signal by the signal conditioner that comprises sync discriminator, when output signal is applied weight coefficient, make up, but the working method of other embodiment may be different therewith.For example, the signal that is produced by ticket radiation reflected line strength or the radiant rays intensity by a ticket transmission can carry out weighting and combination earlier before leading to signal conditioner, signal conditioner response and all period interval are synchronously to provide an output when transmitter output radiation line.Herein, though signal conditioner described here comprises chopper, amplifier and integrator part, among other embodiment, available other forms of signal conditioner.

In some preferred embodiment, the signal to noise ratio (S/N ratio) of coming out from radiation detector can be increased to 100 coefficient.Yet, when signal to noise ratio (S/N ratio) improves, also correspondingly increased integral time.Integral time is long more, and signal to noise ratio (S/N ratio) is high more.This signal to noise ratio (S/N ratio) is subject to the time of the detected detailed programs of ticket medium energy and the saturation degree that is subject to integrator.

The present invention is suitable for automated transaction machine.The present invention includes to can be used for relating to being worth and transfer any device of transaction at interior automated transaction machine.That the present invention can be used for an exemplary automated transaction machine is auto-teller (ATM).Fig. 5 represents the illustrative diagram of an exemplary exchange 112, and it comprises one embodiment of the invention.This exchange comprises a ticket source 114.Ticket be placed in the box or a jar 116 in.Common ground of ticket picks mechanism 118 by one and takes out from jar.This picks mechanism 118 can be as U.S. Patent number 4,494, the sort of pattern shown in 747, but can use any dissimilar mechanism that picks.

This picks mechanism 118 selectively, and one time a ground sends to ticket on the ticket path 120.A driving mechanism that comprises relative belt 122 moves ticket in this path.This driving mechanism 122 is driven by a motor 124 or similar drive unit.

Ticket testing agency in this example machine of the present invention schematically represents with numbering 126.This ticket testing agency 126 extends near the ticket path and detects through the wherein reflection of the ticket of surveyed area and the radiant rays of transmission.Become to be operatively connected with numbering 128 processors of representing among this ticket testing agency 126 and the figure.This processor 128 has a data-carrier store 130 to become to be operatively connected with it.In this exemplary embodiment, this processor is accepted and the corresponding output signal of radiant rays intensity level.This processor calculates and the corresponding detected value of output signal that can comprise one or more values.This detected value is stored in more than one or a plurality of threshold that the data in the data-carrier store are measured with basis.

In response to the relation between at least one detected value and at least one threshold value, making a judgement, individual ticket or that promptly tested ticket is suitable for sending to the user should be diverted and be retained in two the opening or many tickets in the machine to processor 128 according to its procedure operation.Processor 128 becomes to be operatively connected with a steering gear, and this steering gear comprises a door part of representing with numbering 132 in figure.When the ticket that measures was individual, the position of diverter gate part as shown in Figure 5.As a result, ticket is drawn towards as on the second portion with the numbering 134 ticket paths of representing among the figure.The second portion 134 in this path finishes in a sending zone 136.Ticket from then on sending area is sent to the user of machine.

If being a pair of, opens or many ticket the ticket testing agency ticket that explanation is moved in the ticket path according to the detected value of radiant rays strength detection, or a kind of inappropriate ticket, then processor 128 just begins to move and makes diverter gate part 132 move on to ticket to leave on the position of ticket path second portion.And the diverter gate part turns to storehouse 138 with ticket guiding one.Ticket exists this to turn in the storehouse till the personnel that are authorized to contact automated transaction machine inside take out it.

Though should be understood that, the embodiment of described automated transaction machine is an auto-teller, the present invention can be used for various automated transaction machines, and it allots or accept the coupon material of radiation characteristic with variation in thickness.Though described in addition embodiment uses radiant rays to measure the thickness of ticket, also can use the detecting device of other types in other embodiments.For example for suitable ticket, the transmitter of sound, light or other types and detecting device also can provide the indication of a suitable ticket state.In addition, principle of the present invention also can be used for decaying from the external signal of the detecting device of mechanical type, and this mechanical type detecting device comprises those detecting devices of surveying ticket thickness with the member of contact ticket.

Fig. 6 shows the radiation transmitter in another one exemplary embodiment of ticket pick-up unit of the present invention and the structural arrangements of detecting device.What this another kind of configuration was total in the drawings represents that with numbering 140 it comprises one first radiation source of representing with transmitter among the figure 142.This radiation transmitter 142 is positioned at first side of ticket 144.One first radiation detector 146 and transmitter 142 are positioned at the same side of ticket.Another radiation detector 148 is positioned at an opposite side of the ticket 144 that leaves transmitter 142.

As shown in Figure 6, when transmitter 142 sent radiant rays, this irradiation with radiation was on the one side of ticket, and this radiant rays part is reflected and is detected by detecting device 146.Another part of radiant rays sees through ticket and is detected by detecting device 148.Radiation transmitter 142 be driven and with periodic intervals launch radiant rays.This periodic intervals is represented with the positive pulse of the waveform of numbering 150 representatives among Fig. 8.

Embodiment 140 also comprises another radiation source with transmitter 152 expressions.Transmitter 152 is positioned at an opposite side of the ticket 144 that leaves transmitter 142.When ticket during along a ticket path movement, transmitter 152 is set to the radiation emitted line and shines therefrom on the opposing face of ticket 144.A part of radiant rays from transmitter 152 is reflected to detecting device 148.Sub-fraction radiant rays from transmitter 152 also sees through this ticket 144.Yet,, among this embodiment the radiant rays that comes the transmission of transmitter is not since then analyzed because the incident angle of radiant rays of the transmitter 152 of configuration as shown has only less radiant rays by ticket.

Transmitter 152 sends radiant rays by a drive at interval at second period, represents with the waveform of Fig. 8 at interval this second round.What should be noted that is that waveform 154 preferably is not synchronous with waveform 150, so transmitter 142 does not generally send radiant rays at one time with transmitter 152.But in other embodiments, transmitter is launched dissimilar radiation like this, and the detecting device that consequently is used for a transmitter can not be subjected to influencing from the radiant rays that another transmitter sends, and waveform may be overlapping.

Fig. 9 principle shows the Signal Regulation that is used for another embodiment 140 and each parts of analytical equipment.Detecting device 146 is operatively connected for 156 one-tenth with first signal conditioner.This signal conditioner 156 can comprise parts or other the appropriate signals regulating circuit similar with aforementioned sync discriminator.Described signal conditioner can comprise a driver or link to each other with a driver that this driver drives transmitter 142 is to send radiant rays at interval by the period 1 shown in the waveform 150.This signal conditioner 156 usefulness, one chopper or other devices make the emission of radiant rays of the detection signal of self-detector 146 and transmitter 142 synchronous.This signal conditioner 156 also can comprise and a similar amplifier section of aforementioned sync discriminator and an integrator part, detector response 146 detected radiant rays and amplifying and integrated signal.In some embodiment of the present invention, signal conditioner 156 can operate in these all period interval so that to carrying out integration with the corresponding signal of detected radiant rays signal from a detecting device, these all period interval stride accounted for ticket 144 be in the ticket path in time period in the tester ticket path detection district adjacent with transmitter.Certainly, in other embodiments, also can use less than the ticket of whole length integration in addition.

Though signal conditioner 156 can comprise the parts that are similar to sync discriminator or have the parts of identical function with sync discriminator that signal conditioner 156 also can comprise some other parts.Such parts for example comprise an analog-digital converter, one processor or other circuit or parts, in their whens work, take a sample to signal, and only convey the corresponding signal of radiant rays that transmitter 142 sends and detect and pass through between radiation era, and decay or ignore other signals.The parts of signal conditioner 156 also depend on the character of used transmitter and detecting device and the characteristic that perhaps depends on ticket.What should be noted that is, in fact to wanting during the sampling of the radiation signal that comes self-detector 146 or other detecting devices and the analysis fully corresponding to transmitter all period interval when the emitted radiation line just.As long as the signal that comes self-detector is analyzed just much of that in the time period that radiation taking place relevant transmitter basically.The time of signal analysis is shorter than the launch time of transmitter and/or still can obtains desirable result when not quite identical on phase place.

As shown in Figure 9, detecting device 148 is operatively connected for 158 one-tenth with a signal conditioner.Signal conditioner 158 can be similar with signal conditioner 156 in described embodiment.Signal conditioner 158 can send in the interval of radiant rays in response to transmitter 142 and be produced an output by detecting device 148 detected radiant rays.The same with signal conditioner 156, signal conditioner 158 can produce one with the selected period in by the corresponding output of detecting device 148 detected radiant rays.

Transmitter 152 and detecting device 148 also are connected on the signal conditioner 160 in operation.Signal conditioner 160 can produce a drive signal or otherwise become to be operatively connected with a source driving signal, and this source makes transmitter 152 produce radiant rays by the waveform shown in Fig. 8 154.Signal conditioner 160 is substantially similar to signal conditioner 156 and 158.Yet, the output that it produced be representative second round at interval in from the light by the ticket reflection of transmitter 152, transmitter 152 can produce radiant rays second round in this interval.

Should be understood that, that ticket detector configurations 140 can provide " darkness " or the indication of radiant rays absorbance log on two sides of ticket, be inversely proportional to because the size of radiation reflected line amount is a darkness with the ticket medium.Open of great use detecting the two of some type ticket from the valid data that the sphere of each side of ticket gets.

In an exemplary embodiment, signal conditioner 156,158,160 output and one is schematically illustrated as 162 composite sets in the drawings and becomes to be operatively connected.This composite set is that output signal applies weight coefficient and/or to be suitable for detecting the various methodologies composite signal of double sheet according to being stored in numbering data in 164 data-carrier stores of representing.Composite set 162 is included in the software as a functional parts in described one exemplary embodiment, and this software is in the drawings with working in numbering 166 processors of representing.Certainly, should be understood that, the signal combination and the weighting device that in other embodiment, also can use other types.

Composite set uses this output signal information to produce a detected value, and this value comprises one or more values or signal, and they are results that the output of signal conditioner is made up.This detected value is delivered to comparer parts 168 then.These comparer parts can determine the relation of this detected value with respect to a threshold value, and this threshold value can comprise one or more pointing out such as individual ticket, double sheet, the threshold value of three situations such as ticket.In other embodiments, this threshold value can be used to individual ticket and many ticket differences are come.Should be understood that, that in certain embodiments this composite set and comparer response can be worked to regulate this detected value and this threshold value together from the output signal of signal conditioner.For example, the output of the height " darkness " on the expression ticket two sides can be regulated a threshold value so that detected lower radiant quantity is not represented two tickets of opening during in these cases by ticket.On the contrary, when the ticket that " darkness " is lower passed through, similar radiant rays scale showed two opening.The whole bag of tricks to the relation that is made up and regulate detected value and threshold value from the output of signal conditioner can be used depends on the detected concrete bill and the programming of system.These combinations and weighting output and the method for setting and regulating threshold value preferably are based upon on the basis that individual or many ticket type of using that device will detect various experimentize, with mensuration from acceptable individual, the scope and the type of the signal that obtains of many or overlapping ticket.

Comparer 168 response is to the comparison that concerns between detected value and the threshold value and output signal.Open ticket if comparer determines a pair of that may exist, then the signal work of comparer output makes the suitable action that generation will be taked in the machine.This can comprise that the steering gear 132 that for example drives as shown in Figure 5 turns to storehouse 138 to the double sheet importing.

Should be understood that, that configuration of components shown in Fig. 9 and type are exemplary, in other embodiments of the invention, can use the configuration of other hardware and software.Should be understood that, that also described form of the present invention (form that has a transmitter and two detecting devices) also can have form shown in Figure 9 here.Certain the 3rd regulator 160 will not use in these embodiments, and the composite set synchronizing signal by two other signal conditioners outputs capable of being combined.Also should be understood that, though among the embodiment here, radiant rays by transmitter output is described to a wave beam sometimes, and normally linear, but radiation source and radiation output pattern can have various ways, comprising taper, fan-shaped or other shapes that are fit to so that radiant rays is mapped on the ticket that is passing through in the ticket path.Should be understood that in an embodiment of the present invention used transmitter can produce radiant rays with unifrequency or multi-frequency.In further embodiments, also can use the transmitter that produces dissimilar detection signals, on each side of ticket, can provide different or additional detecting device to detect the signal that sends from corresponding transmitter so that they can be worked simultaneously.

Figure 10 shows a system 180, and this system is similar to system shown in Figure 9 140 usually, but its employing is another kind of Signal Conditioning Equipment and technology.In system 180, radiation source 142 and 152 is driven by the drive signal 150 and 154 of non-overlapping copies respectively usually.The same with the embodiment of front, when source 142 response drive signals 150 were driven, detecting device 148 detected the radiant rays amount of the transmission of passing through from ticket from source 142.This detecting device 148 is in the source 152 when being driven signal 154 and driving, and also detects radiant rays from source 152 from ticket one opposing face radiation reflected line strength.When being driven when source 142 response drive signals 150, the detecting device 146 that is on the side identical with 142 ticket paths, source detects from ticket adjacent surface radiation reflected line strength.

In system 180, a prime amplifier 182 will be amplified by the current signal that photodiode produced as detecting device 148 and be changed, and converts a voltage signal to.Similarly, a prime amplifier 184 will be amplified from the current signal as the photodiode of detecting device 146 and be changed and produce a corresponding voltage signal.

The output of prime amplifier 182 is sent to a relevant Discr. 186.Should operate with conversion regime so that filter out the interference of noise and frequency and phase place by relevant Discr. 186.This conversion regime responds a coherent pulse waveform 188 and finishes, and this coherent pulse waveform 188 is corresponding to the combination of waveform 150 and 154.The conversion regime of the relevant Discr. 186 of response coherent pulse waveform 188 will respond the transmission and the radiation reflected line that are detected by detecting device 148 to be separated transmission signal and the reflected signal that produces.

Be sent to one low-pass filtering/amplifier 190 with the detecting device 148 detected corresponding signals of radiant rays amount that see through ticket.Be sent to a low-pass filter amplifier 192 with detecting device 148 is detected from the corresponding signal of ticket radiation reflected line amount.The one or more analog-digital converters in the one exemplary embodiment are transported in filter amplifier 190 and 192 output.This produces the numerical value of the radiant rays amount that an expression detected by detecting device 148 at least, and this value is through relatively, applies weighting factor or through further handling so that individual and many tickets differences are come.

Be sent to a relevant Discr. 194 with the output of the corresponding prime amplifier 184 of detecting device 146 detected radiant rays amounts.Should be driven by pulse waveform 188 with conversion regime by relevant Discr. 194, and preferably will on frequency and phase place, deliver to pulsed drive source 142 by corresponding signal.Because only by those all synchronous with drive waveforms aspect frequency and phase place signals, so this can filter noise.

The output of sync discriminator 194 is sent to a low-pass filter amplifier 196.So expression output of the filter amplifier 196 of radiation reflected line amount from the ticket face of adjacent source 142 is sent to one or more analog-digital converters this embodiment.Digital signal corresponding is combined then, and weighting and/or handle with other signals is individual or more than one ticket so that judge detected ticket.

In this one exemplary embodiment, accumulated to produce the transmission value of accumulation that an expression sees through ticket or sees through the radiant rays of its analyzed part corresponding to each signal of the transmission amount of representative by ticket.Equally, each value from the ticket surface reflection is combined to produce integrated reflection value separately.The reflected value on these value representative ticket surfaces in analyzed part.

These accumulating values are processed by imposing weighting factor then, use this principle, promptly when the color of ticket is dark, cross the radiant rays amount of ticket with less according to the reflected value transmission that measures.Weight coefficient preferably also is used to realize this principle: along with the increase of the ticket thickness of representing many tickets, higher from the degree of ticket reflection.Use above-mentioned principle and after applying weight coefficient, these values can compare or be combined into one or more values respectively with threshold value, and with one or more threshold ratios be individual or many discriminating so that finish to the detection ticket.

Additive method can comprise in groups single transmission and reflected value are weighted and make up each detected regional area with the compensation ticket.This can relate to one group of interior all value is weighted and makes up, and comprises a single transmission value and two reflected values in this group.Perhaps it can comprise to the reflection and the transmission value group make up and weighting.Use these methods to be created in to detect in the ticket process all values that can be repeatedly compare with threshold value.It is individual or the judgement of many tickets that these results relatively can be used to make ticket, and this is clearly.Thereby the signal of have various methodologies to can be used to make up, weighted sum handling self-detector judges that the ticket that is detected is individual or many tickets so that compare with threshold value.

What should be noted that is to have many embodiment all within the scope of the present invention.Embodiments of the invention can be used for making individual ticket by complete overlapping or partly overlapping many tickets being turned to or preventing that with additive method they are sent out.Because embodiments of the invention can be used for providing the indication of ticket thickness, therefore under the situation that allows to do like this, some embodiments of the present invention can be used for allowing confirmable many bills pass through.This can carry out with the similarity method that the mechanical thickness detector of former usefulness was done, and mechanical detector is described in the United States Patent (USP) that has such as the assignee of the present invention 4,464, No. 369 and No. 4462587 to some extent, and the content of these patents is attached to herein by reference.

Figure 11 shows the another kind configuration of transmitter and detecting device in the ticket pick-up unit of the present invention.This another kind configuration of representing with numbering 170 comprises a transmitter 172 and a transmitter 174.This another kind of configuration also comprise one with the detecting device 176 of transmitter 172 in the same side in ticket path.178 of one detecting devices and transmitter 174 place the same side in ticket path.One detected ticket schematically shows with numbering 179.When ticket in the ticket path transmitter and detecting device between by the time, transmitter 172 and 174 is driven, with emitted radiation line in the first and second all period interval that are preferably in non-overlapping copies.When transmitter 172 sent radiant rays, detecting device 176 and all signals of 178 were conditioned and are synchronous with it, to analyze because radiant rays is mapped to the transmission and the reflection characteristic of this ticket on the ticket that leaves ticket path first side.When transmitter 174 in second common nonoverlapping all period interval during the emitted radiation line, detecting device 178 and 176 detects reflected radiation line and the transmitted radiation line strength from the transmitter 174 of the ticket path offside of transmitter 172 respectively.

Be understandable that this another kind of configuration 170 produces four output signals, they can be weighted, make up or with other modes analyze in case determine a vicinity ticket whether have with one individual, two or the corresponding performance of other many tickets.Preferably finish signal weighting and the threshold value determination of determining that the ticket state is done according to the data that obtain with relevant ticket experiment.

Certainly, be understandable that in other embodiments of the invention, other collocation methods of the detecting device of other numbers and other types and transmitter and detecting device also are operable.In addition, the same with described in other embodiment, if used transmitter is the radiant rays of the suitable different frequency of emission or the type of launching other signals, then having largely overlapping in the cycle that transmitter is operated and detects is can be received.

Like this, apparatus and method of the present invention have realized above-mentioned purpose, have eliminated and have used the difficult point that is run in the process of device in the past and system, have solved problem, have reached desired result described above.

In the description in front, understandable for the sake of simplicity for the purpose of, used some terms, but there is no need to limit their connotation, because this term is for purpose of description and in order to explain widely.In addition, all by the example explanation, the present invention does not limit detail as described herein and illustrated for description here and diagram.

In following claims, anyly be described as a kind of device of carrying out a certain function, should be understood to include the device of the described function of the known any execution of those skilled in the art that scholar, and should be not limited to structure described here or only only limit to its equivalent device.

Characteristic of the present invention, discovery and principle have more than been described, the structure of the present invention and the method for operation, and advantage and the useful consequence that reached, and all new, useful structures, device, element, configuration, parts, combination, system, equipment, operation and mutual relationship thereof will be set forth in appended claims one by one.

Claims (36)

1. In a ticket path individual ticket and many devices that ticket distinguishes, this device comprises:

   One first radiation source is positioned at first side in this ticket path, and wherein in fact only at some period 1 emitted radiation line at interval, wherein the radiant rays of this first radiation source is drawn towards on the ticket that shines in this ticket path this radiation source;

   One first detecting device, wherein this first detecting device is positioned and detects radiant rays from this first radiation source, it is the ticket radiation reflected line in this ticket path or passes the radiant rays of a ticket transmission, the detected radiant rays of this first detector response and produce some first signals;

   One first signal conditioner, it becomes to be operatively connected with these first signals, wherein these first signals of in fact only taking place at interval in these period 1 of this first signal conditioner response and produce one first output; A comparer that becomes to be operatively connected with this first signal conditioner, wherein this comparer compares one first detected value and a threshold value, the relation of wherein said detected value and this threshold value respond this first output and change, thereby actually or the relation of this detected value and this threshold value can point out individual ticket of many of a detected ticket.
2. 2. device as claimed in claim 1, it also comprises:

   One second detecting device, wherein this second detecting device is arranged on the opposite side of this first detecting device in this ticket path, wherein this second detecting device is positioned to detect the radiant rays from this first radiation source, detected radiant rays can be a ticket radiation reflected line in this ticket path, or see through the radiant rays of the transmission of a ticket, the radiant rays that this second detector response is detected and produce some secondary signals;

   A secondary signal regulator that becomes to be operatively connected with these secondary signals, wherein this secondary signal regulator can respond these secondary signals that in fact only just take place at these period 1 intervals and produce one second output, wherein this second output becomes to be operatively connected with this comparer, and wherein the relation of this detected value and this threshold value also responds this second output and changes.
3. 3. device as claimed in claim 1, wherein this first signal conditioner comprises one first chopper circuit part, described first chopper circuit part is in fact only amplified these first signals and in fact at these first signals of decaying of every other time, this first copped wave partly produces some first chopping signals at interval in these period 1.
4. 4. device as claimed in claim 3, wherein said first signal conditioner also comprises a first integral circuit part, described first integral circuit part can carry out integration for during the cycle very first time these first chopping signals, and described first integral circuit part produces some the first integral signals corresponding to this first output.
5. 5. device as claimed in claim 4, it also is included in the drive unit that moves a ticket in this ticket path, and wherein a ticket that moves extends in this cycle very first time between this first radiation source and this first detecting device or second detecting device in this ticket path.
6. 6. device as claimed in claim 2, it comprises that also one and described first and second is output into a composite set that is operatively connected, wherein this composite set responds described first and second outputs and produces this detected value.
7. 7. device as claimed in claim 6, it also comprises a data-carrier store, wherein said data-carrier store comprises the data of representing weight coefficient, this composite set becomes to be operatively connected with this data-carrier store, and this composite set is added to weight coefficient this first and second output producing under the situation of this detected value.
8. 8. device as claimed in claim 1, it also comprises a processor, wherein said processor comprises this comparer.
9. 9. device as claimed in claim 7, it also comprises a processor that becomes to be operatively connected with a data-carrier store of wherein storing data, wherein this processor comprises described composite set, and the weight coefficient that puts on described first and second output is corresponding to these data that are stored in this storer.
10. 10. device as claimed in claim 2, it also comprises:

    One second radiation source, it leaves second side that this first radiation source is arranged in this ticket path, wherein this second side is relative with this first side, this second radiation source in fact only not corresponding to second round at interval this period 1 at interval in the emitted radiation line, ticket on this ticket path of the radiant rays directive of this second radiation source, this second detecting device are in this second side in this ticket path; And

    One the 3rd signal conditioner that becomes to be operatively connected with these secondary signals, wherein these secondary signals of only producing in these interims second round of the 3rd signal conditioner response are to produce one the 3rd output, the 3rd output becomes to be operatively connected with this comparer, and wherein the relativeness of this detected value and this threshold value is to respond the 3rd output and change.
11. 11. an operational rights requires the method for 1 described device, this method comprises the following steps:

    (a) in these very first times intervals, send radiant rays from this first radiation source;

    (b) with the radiant rays of this first detecting device detection from this first radiation source, this radiant rays or one ticket reflection from this ticket path, or transmission crosses ticket and arrives this first detecting device, radiant rays that this first detector response detected and produce these first signals;

    (c) by some first values being included in one of this first output calculates, these first values be with in fact only these very first times at interval in these first signals big or small corresponding of generation, produce this with this first signal conditioner and first export;

    (d) respond this first output and change relation between this detected value and this threshold value; And

    (e) with this comparison means mutual relationship between this detected value and this threshold value relatively.
12. 12. method as claimed in claim 11 wherein in step (C), is carried out integration to these first values during this first calculating is included in a very first time.
13. 13. method as claimed in claim 12, it is further comprising the steps of:

    Move this ticket in this ticket path; And

    In fact in this cycle very first time, will guide this first detecting device into from the radiant rays of this first ticket.
14. 14. an operational rights requires the method for the device described in 2, it may further comprise the steps:

    (a) send radiant rays from this first radiation source at interval in this very first time;

    (b) detect radiant rays from first radiation source with this first detecting device, this radiant rays can be that the ticket in this ticket path reflexes to or is transmitted to this first detecting device through ticket, responds the radiant rays of this detection and produces these first signals;

    (c) detect from the next radiant rays of this second radiation source with this second detecting device, this radiant rays can be that this ticket reflexes to or is transmitted to this second detecting device by this ticket in the ticket path, the detected radiant rays of described second detector response and produce these secondary signals;

    (d) by some first values being included in one of this first output calculates, these first values be with in fact only these very first times at interval in these first signals big or small corresponding of generation, produce this with this first signal conditioner and first export;

    (e) by some second values being included in one of this second output calculates, these second values be with in fact only these very first times at interval in these secondary signals big or small corresponding of generation, produce this with this secondary signal regulator and second export;

    (f) respond this first output and this second output, change the relation between this first detected value and this threshold value; And

    (g) with this comparison means relation between this detected value and this threshold value relatively.
15. 15. method as claimed in claim 14, wherein step (f) comprise to this first and this second output apply different weight coefficients and change this detected value and this threshold value between relation.
16. 16. an operational rights requires the method for 10 described devices, this method comprises the following steps:

    (a) send radiant rays in these interims very first time from this first radiation source;

    (b) with the radiant rays of this first detecting device detection from this first radiation source, this radiant rays is that the ticket from this ticket path reflexes to or is transmitted to this first detecting device by ticket, the radiant rays that this first detector response detected and produce these first signals;

    (c) with the radiant rays of second detecting device detection from this first radiation source, this ray is that this ticket reflexes to or is transmitted to this second detecting device by this ticket in this ticket path, the radiant rays that this second detector response detected and produce these secondary signals;

    (d) by some first values being included in one of this first output calculates, these first values be with in fact only these very first times at interval in these first signals big or small corresponding of generation, produce this with this first signal conditioner and first export;

    (e) by some second values being included in one of this second output calculates, these second values be with in fact only these very first times at interval in these secondary signals big or small corresponding of generation, produce this with this secondary signal regulator and second export;

    (f) during these second time intervals, send radiant rays from this second radiation source;

    (g) with the radiant rays of this second detecting device detection from this second radiation source, this radiant rays is that this ticket from this ticket path reflexes to this second detecting device;

    (h) by some the 3rd values being included in one of the 3rd output calculates, these the 3rd values are big or small corresponding with these secondary signals that produce in these second time intervals in fact, produce one the 3rd output with one the 3rd signal conditioner;

    (i) respond this first, second, third output and change this detected value with respect to the relation between this threshold value; And

    (j) with this comparison means relation of this detected value and this threshold value relatively.
17. 17. the method that individual ticket and many tickets being made up of many overlapping tickets are distinguished, this method may further comprise the steps:

    (a) with first of first radiation source irradiates, one ticket who is positioned at this ticket first side,

    (b) detecting device that is used in first side of this ticket detect from this first radiation source and from the first radiant rays amount of first reflection of this ticket;

    (c) use the second radiant rays amount that see through this ticket of the detecting device detection of second side that is positioned at this ticket from this first radiation source

    (d) with second of second this ticket of radiation source irradiates who is positioned at this ticket second side;

    (e) detect from this second radiation source and by the 3rd radiant rays amount of second offside reflection of this ticket with a detecting device that is positioned at this ticket second side;

    (f) respond this first, second, third radiant rays amount and produce at least one value;

    (g) this at least one value and at least one threshold value are compared, actually or wherein the relation table between this at least one value and this at least one threshold value illustrates many tickets of this ticket one individual ticket.
18. 18. method as claimed in claim 17, wherein in step (c), detecting this detecting device of the described second radiant rays amount is identical detecting device with the detecting device that detects the 3rd radiant rays amount in step (e).
19. 19. method as claimed in claim 17, step (b) and (c) carry out wherein in the interim very first time, step (c) was carried out during second time interval.
20. 20. method as claimed in claim 19 should be a non-overlapping copies with this second time interval the very first time at interval wherein.
21. 21. method as claimed in claim 17, wherein this ticket has inconsistent sign and is printed on each this first and each this second, and may further comprise the steps:

    Move this ticket by a surveyed area in a ticket path, wherein each is repeatedly carried out step (a) when this ticket moves through this surveyed area to step (e).
22. 22. method as claimed in claim 21, it also comprises the following steps:

    In many first radiant rays amounts that response is detected during carrying out step (b) each and produce one first reflected value, and make up accumulation first reflected value of many first reflected values to produce this ticket.
23. 23. method as claimed in claim 21 is further comprising the steps of:

    In many second radiant rays amounts that response is produced during carrying out step (c) each and generate a transmission value, and make up many transmission values to produce an accumulation transmission value of this ticket.
24. 24. method as claimed in claim 22, it is further comprising the steps of:

    In many second radiant rays amounts that response produces during execution in step (c) each and produce a transmission value, make up many transmission values to produce an accumulation transmission value of this ticket, wherein step (f) comprises at least a weight coefficient is put among this integrated reflection value and the accumulation transmission value at least one.
25. 25. method as claimed in claim 22, it is further comprising the steps of:

    In many second radiant rays amounts that response produces during execution in step (c) each and generate a transmission value; Make up many transmission values and accumulate transmission value to produce one of this ticket,

    In many 3rd radiant rays amounts that response produces during execution in step (e) each and generate one second reflected value;

    Make up many second reflected values to produce second reflected value of accumulating of this ticket.
26. 26. method as claimed in claim 25, wherein step (f) comprises first reflected value to this accumulation, and at least one among second reflected value of this accumulation and the transmission value of this accumulation applies a weight coefficient.
27. 27. method as claimed in claim 26, wherein in step (f), apply this weight coefficient and make in second reflected value of first reflected value of this accumulation and accumulation the increase of at least one value that the pass of this at least one value and at least one threshold value is tied up to compare in the step (g) and indicate to trend towards more than one ticket.
28. 28. method as claimed in claim 21, step (b) and (c) be to carry out at interval wherein in many period 1 each period 1 at interval, step (e) was carried out in many interims second round, and wherein these period 1 are non-overlapping at interval with these second rounds at interval.
29. 29. method as claimed in claim 17, wherein in step (f), this at least one value is by at least one weight coefficient being put on and this first radiant rays amount, and corresponding at least one output of at least one amount forms in this second radiant rays amount and the 3rd radiant rays amount.
30. 30. method as claimed in claim 29, wherein this at least one weight coefficient be applied in cause with this first radiant quantity in one increase or the 3rd radiant quantity in one increase a corresponding output and increase many tickets indication changes of this relation in the step (g).
31. 31. method as claimed in claim 17, wherein this first radiation source comprises an infrared origin.
32. 32. method as claimed in claim 17, wherein this second radiation source comprises an infrared origin.
33. 33. method as claimed in claim 17, it is further comprising the steps of:

    Along this ticket of ticket path movement; And response this ticket of indication be in the step (g) of many tickets relatively the relation of this at least one value and this at least one threshold value and this ticket from this ticket path call away to.
34. 34. a device, it comprises:

    One ticket;

    At least one is at first radiation source of this ticket first side;

    At least one is at first detecting device of this ticket first side;

    At least one second radiation source, it is positioned at second side of this ticket on this first side opposite;

    At least one is positioned at second detecting device of this second side of this ticket;

    At least one and this first radiation source, this first detecting device, the processor that this second radiation source and this second detecting device become to be operatively connected, wherein this processor is carried out step (a) to the step (g) in the claim (1).
35. 35. device as claimed in claim 34, it also comprises:

    One ticket path, wherein this ticket moves in this ticket path;

    One steering gear relevant with this ticket path, described steering gear becomes to be operatively connected with described processor;

    Wherein step (g) is carried out in response to the work of this processor, and wherein this processor responds the comparison in the step (g) that this ticket of expression is many tickets and works so that this steering gear action is produced this ticket path to this ticket.
36. 36. the method that individual ticket and many tickets being made up of many overlapping tickets are distinguished, this method may further comprise the steps:

    (a) with one first of one first radiation source irradiates, one ticket who is positioned at this ticket first side;

    (b) detect one first radiant rays amount with one at the detecting device of this ticket first side from first reflection of this ticket from this first radiation source;

    (c) with the one second radiant rays amount that see through this ticket of the detecting device detection that is positioned at this ticket second side from this first radiation source;

    (d) with one second of this ticket of radiation source irradiates who is positioned at this ticket second side;

    (e) be used in one three radiant quantity from this ticket second offside reflection of the detecting device detection of this ticket second side from this second radiation source; And

    (f) respond this first, the second and the 3rd amount and judge that this ticket is individual ticket or many tickets.

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