CN206224660U - A kind of multi national river full width face magnetic image acquisition platform - Google Patents

Abstract

The utility model provides a kind of multi national river full width face magnetic image acquisition platform, including platform base and master control borad circuit, platform base is provided with the lower paper money currency twirling mechanism for transmitting paper money coin and the magnetic signal acquisition sweep mechanism for detecting magnetic image feature on paper money coin, lower paper money currency twirling mechanism includes that paper money motor is walked in the longitudinal direction electrically connected with master control borad circuit, magnetic signal sweep mechanism includes lateral displacement head hold, the lateral displacement motor electrically connected with master control borad circuit, at least one magnetic sensor electrically connected with master control borad circuit on lateral displacement head hold, lateral displacement motor is used to drive magnetic sensor to make horizontal straight reciprocating motion along the direction vertical with paper money direction is walked, the magnetic head of magnetic sensor is towards money transmitting channel.The utility model can carry out the completely quantitative magnetic image collection apparatus in full width face and analysis for different denominations and different types of paper money coin, it is adaptable to anti-counterfeiting detection application and research to Multiple Currencies currency, have high application value in the industry.

Description

A kind of multi national river full width face magnetic image acquisition platform

Technical field

The present invention relates to multi national river anti-counterfeiting detection technical field, more particularly, to a kind of multi national river full width face magnetic Image-capturing platform.

Background technology

Anti-counterfeiting technology is global various currency（Paper money coin is refered in particular to herein：Containing RMB and various foreign currencies）In the process of manufacturing In the most important thing, using magnetic ink printing as a kind of high reliability anti-counterfeiting technology means, obtained in currency manufacture field Extensive use.Magnetic ink printing technology is in the printing process of paper money coin, to add heterogeneity in printing-ink in advance Metal magnetic, the magnetic ink of composition, the then ad-hoc location by the magnetic ink printing on currency pattern, due to magnetic Distribution on image and form distinctive magnetic susceptibility region, carry out signal acquisition and reduction by this part magnetic susceptibility region And obtain magnetic image.Because this magnetic image is lain in inside printed matter visual picture, not by special detection means without Method is observed, if detected to currency pattern by the magnetic signal detection device of specialty, can detected on every kind of paper money coin Possesses the magnetic image of individual features pattern.

But as each national financial currency, for financial security, for the formula of the magnetic ink of paper money coin printing With the imaging features of magnetic image, all without external disclosure.By taking yen as an example：Japan uses magnetic ink printing yen, but this Ink with wherein, how much consumption is all in being kept absolutely secret.The yen paper money coin of 10,000 yuan of face amount is detected through relevant expert, in the paper money The coin upper right corner detects magnetic ink, and the element that can be detected in the ink has just reached as many as 14 kinds, wherein magnetic gold Category is iron, cobalt, nickel.Iron content highest, cobalt, nickel belong to denier.The main component of certificate of analysis magnetic ink is iron oxide, oxidation Cobalt etc. is mixed in iron.

This also illustrates that carrying out printing using magnetic ink has very high-tech door, and in the market not yet finds to employ so far The counterfeit money that complete full width face magnetic image technology is printed.And the collection of paper money coin magnetic image reproduces and also has certain enforcement difficulty, On the rare introduction of technical documentation at home and abroad of magnetic image reproduction display technology.And for being engaged in currency false distinguishing identification finance device For the personnel of research and development, we are after carrying out magnetic signal acquisition and analysis to different currency type paper money coin magnetic image features, it becomes possible to Targetedly developing carries out the finance device of efficient and reliable machine identification to various currency（Know containing truth identification and denomination Not）.

In view of finance device conventional at present（Such as currency counting and detecting machine, cleaning-sorting machine, ATM self-service devices etc.）In, because receiving magnetic head The limitation of volume and detection platform own dimensions, can only be equipped with a few magnetic signal acquisition magnetic head, due to magnetic head distribution Limitation, it is impossible to magnetic image acquisition function truly is formed, so the said equipment can only carry out qualitative point to magnetic signal Analysis.

A class currency counting and detecting machines conventional at present typically employed by 5 Magnetic Sensors and carry out magnetic signal acquisition, and cleaning-sorting machine and ATM access integral machines typically also use only 12 Magnetic Sensors, so can only be to paper money coin under this signal acquisition pattern Some fixed positions carry out magnetic signal acquisition, and not reaching much is carried out the requirement of magnetic image collection by paper money coin full width area, upper The signal acquisition that a width magnetic image standard composition cannot be completed under pattern is stated, also cannot be by detecting magnetic image in paper money coin full width face On distribution characteristics, be accurately positioned come the magnetic feature to banknote.This undoubtedly directly influences the identification of paper money coin and anti counterfeit appts Research and development progress and effect.In age and globalization of economy, current of home make finance device has largely exported to global each Ground, it requires that the gold contact currency examination equipment that we will produce from now on can accurately identify and detect country variant, different types of goods Coin.So the research to various paper money coin magnetic image features differentiates and a kind of false proof important means into home currency and foreign currency.

The content of the invention

The present invention provides a kind of multi national river full width face magnetic image acquisition platform, by this multi national river full width face magnetic chart As acquisition platform, the completely quantitative magnetic image collection apparatus in full width face can be carried out for different denominations and different types of paper money coin And analysis, 50DPI resolution ratio has been reached by the paper money coin full width face magnetic image of present invention collection, it is completely suitable for many coin The anti-counterfeiting detection application and research of currency are planted, there is high universality and application value in finance device manufacturing, and Can sizable application in actual product.

The invention provides a kind of multi national river full width face magnetic image acquisition platform, including platform base and master control borad electricity Road, the platform base is provided with the lower paper money currency twirling mechanism for transmitting paper money coin and the magnetic for detecting magnetic image feature on paper money coin Signal scanning mechanism, the lower paper money currency twirling mechanism includes that paper money motor, institute are walked in the longitudinal direction electrically connected with the master control borad circuit State lateral displacement motor that magnetic signal sweep mechanism electrically connects including lateral displacement head hold with the master control borad circuit, At least one magnetic sensor electrically connected with the master control borad circuit on the lateral displacement head hold, the transverse direction Displacement drive motor is used to drive the magnetic sensor to make horizontal straight reciprocating motion, institute along the direction vertical with paper money direction is walked State the magnetic head of magnetic sensor towards money transmitting channel.

Alternatively, the lower paper money currency twirling mechanism includes vertical with paper money direction is walked along the banknote-sliding board that paper money direction sets gradually is walked Counting shaft and the note-twisting wheel that is sheathed on the counting shaft, it is described to send paper money motor for driving the counting shaft to rotate.

Alternatively, it is described to walk to be driven by belt transmission or shaft coupling mode between paper money motor and the counting shaft, and/ Or, being driven by belt or leading screw mode between the lateral displacement motor and the lateral displacement head hold.

Alternatively, the lateral displacement head hold includes the head hold axis of guide, and the magnetic sensor can be provided with multiple, many The individual magnetic sensor interval is independent to be socketed on the head hold axis of guide.

Alternatively, the lateral displacement head hold includes the head hold axis of guide and is socketed on the head hold axis of guide Head support frame, the magnetic sensor can be provided with multiple, and multiple magnetic sensors are both secured to the head support On frame.

Alternatively, the two ends of the lateral displacement magnet stand head are provided with for detecting that magnetic sensor position in place passes Sensor, the position sensor is electrically connected with the master control borad circuit.

Alternatively, the master control borad circuit also electrically connects the network communication device for being electrically connected with outer computer, and/ Or for carrying out the mini-printer of real time print, and/or the warning device for producing alert news to point out to scan image.

Alternatively, the magnetic head of the magnetic sensor along the linear scanning path vertical with paper money direction is sent carry out displacement and Move back and forth, the both sides on the platform base in the linear scanning path are provided with note input position sensor and note output position passes Sensor.

Alternatively, the lower paper money currency twirling mechanism is provided with paper money coin inductive pick-up, and/or the master control borad in paper money coin porch Circuit also electrically connects a display and a signal input apparatus.

Beneficial effects of the present invention：

Multi national river full width face magnetic image acquisition platform of the present invention, by the reciprocating motion of magnetic sensor to paper money to be detected The full width face magnetic image feature of coin carries out detection collection, and the present invention disclosure satisfy that the magnetic image collection demand of different type paper money coin, It is a kind of effective tool of finance device exploitation.In view of also do not carry out magnetic image reduction specifically designed for currency both at home and abroad at present adopting The relevant device of collection, the present invention is with low cost because simple structure, both can carry out many China-made goods as finance device developer The developing instrument of coin detection technique research, after other inspection fake methods are comprehensively added, also can be directly as highly reliable multi national river Detector is used.Particular for dollar, Euro etc. external main flow current money anti-counterfeit recognition sharp weapon, pushed away with market higher Wide value.

Brief description of the drawings

The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is the integral mechanical structure schematic diagram of embodiment of the present invention multi national river full width face magnetic image acquisition platform；

Fig. 2 is the mechanical structure schematic diagram of the embodiment that the present invention is provided with position sensor and multiple magnetic sensors；

Fig. 3 be in the magnetic image acquisition platform of embodiment of the present invention multi national river full width face three groups of magnetic sensors in magnetic head branch Mechanical structure schematic diagram on support；

Fig. 4 is storage distribution schematic diagram of the magnetic image characteristic signal in memory chip in the embodiment of the present invention；

Fig. 5 is that the magnetic image of the embodiment of the present invention shows schematic diagram on a liquid crystal display；

Fig. 6 is the schematic block circuit diagram of embodiment of the present invention multi national river full width face magnetic image acquisition platform；

Fig. 7 is 50 dollars of magnetic charts that the magnetic image acquisition platform surface sweeping of embodiment of the present invention multi national river full width face is detected Picture；

Fig. 8 is 50 dollars of master images；

Fig. 9 is 10 dollars of magnetic charts that the magnetic image acquisition platform surface sweeping of embodiment of the present invention multi national river full width face is detected Picture；

Figure 10 is 10 dollars of master images；

Figure 11 be shown in Fig. 2 along A-A to cross-sectional view.

Reference：

100th, platform base；101st, note input position sensor；102nd, note output position sensor；210th, DSP image procossings mould Block；220th, motor drive component；230th, liquid crystal display；240th, signal input apparatus；250th, magnetic signal front-end collection amplification board； 251st, A/D converter circuit；252nd, magnetic signal amplifier；300th, lower paper money currency twirling mechanism；301st, banknote-sliding board；302nd, counting shaft；303rd, twist with the fingers Paper money wheel；310th, paper money motor is walked in longitudinal direction；320th, paper money coin inductive pick-up；330th, paper money belt is walked in longitudinal direction；400th, magnetic signal scanning Mechanism；410th, lateral displacement head hold；411st, the head hold axis of guide；412nd, head support frame；413rd, position sensor；414th, magnetic Property sensor；4141st, magnetic head；420th, lateral displacement motor；430th, head hold lateral displacement gear；440th, head hold transverse direction Belt.

Specific embodiment

Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.It should be noted that in the feelings not conflicted Under condition, the feature in embodiment and embodiment in the application can be mutually combined.

Reference picture 1, Fig. 2 and Figure 11, first embodiment of the invention are gathered there is provided a kind of multi national river full width face magnetic image Platform, including platform base 100 and master control borad circuit, the lower paper money that the platform base 100 is provided with for transmitting paper money coin twist with the fingers paper money Mechanism 300 and the magnetic signal sweep mechanism 400 for detecting magnetic image feature on paper money coin, the lower paper money currency twirling mechanism 300 include Paper money motor 310 is walked in the longitudinal direction electrically connected with the master control borad circuit, and the magnetic signal sweep mechanism 400 includes lateral displacement Head hold 410 and the lateral displacement motor 420 that the master control borad circuit is electrically connected, located at the lateral displacement head hold At least one magnetic sensor 414 electrically connected with the master control borad circuit on 410, the lateral displacement motor 420 For driving the magnetic sensor 414 to make horizontal straight reciprocating motion along the direction vertical with paper money direction is walked, the magnetic is passed The magnetic head 4141 of sensor 414 is towards money transmitting channel.

Multi national river full width face magnetic image acquisition platform of the present invention, by the reciprocating motion of magnetic sensor 414 to be checked Surveying the full width face magnetic image feature of paper money coin carries out detection collection, and the present invention disclosure satisfy that the magnetic image collection of different type paper money coin is needed Ask, be a kind of effective tool of finance device exploitation.In view of also do not carry out magnetic image specifically designed for currency both at home and abroad at present adopting The relevant device of collection, the present invention is with low cost because simple structure, both can carry out many China-made goods as finance device developer The developing instrument of coin detection technique research, after other inspection fake methods are comprehensively added, also can be directly as highly reliable multi national river Detector is used.Especially can as dollar, Euro etc. external main flow current money anti-counterfeit recognition sharp weapon, with market higher Promotional value.

Wherein, reference picture 7 and Fig. 8 are the embodiment of the present invention carries out the magnetic signal scanning of full width face to the paper money coin of 50 dollars of face amount The image for obtaining afterwards, and Fig. 9 and Figure 10 are then the embodiment of the present invention carries out full width face magnetic signal to the paper money coin of 10 dollars of face amount and sweep The image obtained after retouching.

More preferably, in order to solve to be gathered in high-resolution magnetic picture signal, magnetic sensor 414 is laid out the problem of hardly possible, I Employ the magnetic signal acquisition scheme of electromechanical integration, present invention preferably uses three semiconductors of magnetic gap 0.5mm Magnetic head, just fully achieves the high-resolution magnetic image collection apparatus function in full width face, and magnetic image collection apparatus image Resolution ratio is unrelated with magnetic head number, only relevant with the sensitivity of magnetic head itself and magnetic gap.The present invention can be directed to different denominations The completely quantitative magnetic image collection apparatus in full width face and analysis are carried out with different types of paper money coin, by the paper money coin of present invention collection Full width face magnetic image has reached 50DPI resolution ratio, is completely suitable for anti-counterfeiting detection application and research to Multiple Currencies currency, In finance device manufacturing have high universality and application value, and can sizable application in actual product.

The invention provides the second preferred embodiment, in a second embodiment, the lower paper money currency twirling mechanism 300 includes that edge is walked The banknote-sliding board 301 that paper money direction the sets gradually counting shaft 302 vertical with paper money direction is walked and it is sheathed on the counting shaft 302 Note-twisting wheel 303, it is described to send paper money motor for driving the counting shaft 302 to rotate.More specifically, the present embodiment is actually sending During paper money, will paper money coin to be detected is smooth is placed on paper money platform, control longitudinal direction to walk paper money by master control borad circuit and drive electricity Machine 310 is operated, and drives counting shaft 302 to rotate, and counting shaft 302 drives note-twisting wheel 303 to rotate, and note-twisting wheel 303 twists with the fingers in surface A paper money coin.More preferably, the paper money coin that resistance rubber clings lower floor can be set, the paper money coin and following paper money coin for making surface are separated, Realization is said good-bye.This process constantly repeats, until having twisted with the fingers last paper money coin.

The present invention provide 3rd embodiment, in the third embodiment, it is described walk paper money motor and the counting shaft 302 it Between paper money belt 330 walked by longitudinal direction be driven or shaft coupling mode is driven, and/or, the lateral displacement motor 420 and the horizontal stroke It is driven by belt or leading screw mode between displacement head hold 410.

More preferably, belt transmissioning mode can be by head hold lateral displacement gear 430 and head hold transverse direction belt 440 Coordinate and drive note-twisting wheel 303 with synchronous, the head hold lateral displacement gear 430 is arranged on the rearward end of magnetic sensor 414, lead to The mode that belt and gear coordinate is crossed, bonding strength is higher.Include a wire lever for Lead screw transmission structure, by being arranged on The gear of the rear end of magnetic sensor 414 is engaged with the screw thread of wire lever, one end of wire lever then with lateral displacement motor 420 Output shaft end coupling connection, by lateral displacement motor 420 drive wire lever rotate, and then drive magnetic sensor 414 do transverse reciprocating scanning.

More specifically, the moving head frame lateral displacement gear 430 and the magnetic of flute profile that pass through the rearward end of magnetic sensor 414 The tight occlusion of headstock transverse direction belt 440, under the drive of flute profile belt, as long as we control lateral displacement motor to be rotated forward And reversion, that is, shifted left and the right shift for controlling magnetic sensor 414.

The invention provides fourth embodiment, in the fourth embodiment, the lateral displacement head hold 410 includes head hold The axis of guide 411, the magnetic sensor 414 can be provided with multiple, and multiple magnetic sensors 414 are spaced independent being socketed on On the head hold axis of guide 411.

Magnetic sensor 414 is socketed on the head hold axis of guide 411, and by this kind of mode, magnetic sensor 414 can be Smooth movement is carried out on the magnetic head axis of guide, a reliable linear scanning path of fixation is formd, it is ensured that scanning accuracy, while The head hold axis of guide 411 is also equipped with certain supporting role, improves bonding strength.More preferably, can be oriented in head hold Multiple magnetic sensors 414 are set simultaneously on axle 411, and magnetic sensor 414 can be arranged with uniform intervals.

It is noted that the invention provides the 5th embodiment, in the 5th embodiment, the lateral displacement head hold 410 include the head hold axis of guide 411 and the head support frame 412 being socketed on the head hold axis of guide 411, and the magnetic is passed Sensor 414 can be provided with multiple, and multiple magnetic sensors 414 are both secured on the head support frame 412.

5th embodiment is that the multiple magnetic sensors 414 in the 5th embodiment are solid with the difference of fourth embodiment Due on a head support frame 412, so actually lateral displacement motor 420 is that driving head support frame 412 is carried out Move back and forth, and then driven magnetic sensor 414 to move back and forth.Certainly, the multiple magnetic transducings on head support frame 412 Device 414 can also uniform intervals setting.

In a word, either fourth embodiment or the 5th embodiment, can effectively shorten single magnetic sensor 414 and exist Stroke on scanning pattern, is substantially improved the Scanning Detction efficiency of magnetic image feature.For example, on the individual of head hold assembling magnetic head Number, if motor control drives the linear velocity of the lateral displacement of magnetic sensor 414 operation to be designed as 0.8m/s（The tool of rate conversion Body is calculated and omitted）If entering line scans using single magnetic sensor 414 on head hold, the magnetic sensor on head hold 414 just must from Far Left original position be displaced to farthest right position could complete a line magnetic signal scanning, and head hold from Leftmost bit moves on to the sweep time t=0.18/0.8=0.225s often gone needed for farthest right position（Detection length/linear velocity）.With 100 dollars of appearance and size 156X66.3mm（X long is wide）Calculate, the complete magnetic image of one 100 dollars of collection, with magnetic image effect For the resolution ratio of 50DPI is calculated, require that every millimeter need to scan 2 row magnetic signals when longitudinally walking paper money, if completing whole banknote Scanning, need to gather 66.3X2=132 row magnetic signals altogether, and required total horizontal-scanning interval is up to T=132X0.225=29.7s.In order to Sweep time is saved, the present invention improves sampling efficiency using the configuration mode of multiple magnetic head synchronized samplings.Passed with configuring 3 magnetic As a example by sensor 414, in the fourth embodiment, it is total that the spacing between the magnetic sensor 414 at two ends is set to the head hold axis of guide 411 2/3 length long, and be then the total length of the head hold axis of guide 411 by the Design of length of head support frame 412 in the 5th embodiment 2/3 length, classify in three categories whole efficiently sampling length is equally spaced point, in each equally spaced original position assembling one Magnetic head, is assembled with 3 magnetic sensors 414 altogether, and the effect after so improving is exactly the single magnetic when the scanning of magnetic signal row is carried out The displacement zone distance of property sensor 414 becomes the 1/3 of original shift length.So often sample a time for paper money coin data It is only original 1/3 to become T=29.7/3=9.9s equivalent to the time needed for magnetic image collection apparatus.Certainly, we can be with Line scan speed is further improved by increasing the quantity of magnetic sensor 414, but under current belt transmission pattern, such as The too short head hold that is likely to cause of fruit transmission distance produces shake in operation, the collection effect of magnetic image is influenceed, by multiple After experiment, for the 180mm axis of guides long, 3 magnetic sensors 414 of configuration are better, so can both improve row Sweep speed also ensure that the collection effect of magnetic image.Because the assembling of 3 magnetic sensors 414 is distribution at equal intervals, can To complete three magnetic sensors 414 in the interval docking of switch sampling, this ensures that there left from position dextroposition to position When both ensure that 180mm efficiently samplings interval magnetic signal all standing, while can also avoid three yoke signal acquisitions occur weight Repeatedly.

More specifically, in embodiments of the present invention, in order to reach the collection effect of high accuracy magnetic image, in magnetic signal acquisition On, magnetosensitive magnetic head or semiconducting-magnetic-head can be selected.Wherein, the semiconducting-magnetic-head for using of the invention is by InSb magnetoresistive chips and carries The permanent magnet composition of magnetoresistive chip magnetic bias is supplied, magnetic gap is 0.5mm, is packaged using hard alloy shell, magnetic signal Fast response time, output stabilization, the biggest advantage is that output voltage amplitude is unrelated with the translational speed of tested magnetic bodies, and And non-cpntact measurement can be accomplished, it is that the present invention uses the ideal selection of magnetic signal acquisition sensor.

The invention provides sixth embodiment, in the sixth embodiment, reference picture 3, the two of the lateral displacement magnet stand head End is provided with for detecting the position sensor 413 in place of the magnetic sensor 414, the position sensor 413 and the master The circuit electrical connection of control plate.Horizontal left and right sidesing shifting is carried out by the control head hold of lateral displacement motor 420, by the motor Positive control is carried out, drives magnetic sensor 414 to be moved to the left after motor transhipment, while start magnetic signal acquisition, when magnetic is passed Sensor 414 touches the left position sensor 413 of lateral displacement head hold 410, and the left position sensor 413 is generated to be believed in place Number, master control borad circuit receives this in place after signal, controls the motor to stop, and the collection of magnetic signal row is completed, and is then automatically controlled Motor is rotated backward, while starting reverse magnetic signal acquisition, magnetic sensor 414 is moved to the right again under the drive of belt, When the position sensor 413 on the right is touched, reverse magnetic signal row collection is completed, motor stops waiting next instruction.Pass through This kind of mode can be avoided after magnetic sensor 414 is moved into place, and controlled motor still applies unidirectional active force.It is anti- Collision is only produced between magnetic sensor 414 and platform matrix, the reliability of equipment is improved.Meanwhile, set location sensor 413 After can realize more accurate position control.

Alternatively, the position sensor 413 can be simple mechanical switch, or pressure sensor, no matter It is mechanical switch or pressure sensor, it can produce corresponding electric signal when magnetic sensor 414 moves to two ends Change.

Present invention also offers the 7th embodiment, in the 7th embodiment, the master control borad circuit also electrically connect for The network communication device of outer computer electrical connection, and/or for carrying out the mini-printer of real time print to scanning magnetic image, And/or the warning device for producing alert news to point out.

More specifically, the network communication device can be wired mode, or wireless mode, by magnetic chart of the present invention Magnetic image characteristic directly can be transferred to upper PC by the communication interface carried as acquisition platform carries out graphical analysis, should Communication interface can be RS232 interfaces, may also be RS485 serial ports or other parallel communication interfaces.More preferably, reference picture 5, this Invention can set display, such as high-resolution TFT LCD 230 in design, so by this acquisition platform just Magnetic image can intuitively be included on the machine screen, can be with the collection effect of Real Time Observation to magnetic image without upper PC Support.

More preferably, the present invention can also embedded data process chip, in the data processing chip can to scanning obtain Magnetic image and standard magnetic image information be analyzed contrast, and need not be again extraly by magnetic image information transmission to PC.Its In, data processing chip extends out storage chip, the standard that the present invention can be by way of networking in real-time update storage chip Magnetic image information.

Also, if necessary, it is also possible to the magnetic image feature in real time arriving Scanning Detction, beaten by mini-printer Print.If picking out counterfeit money, alert news signal can be produced by warning device, to warn user.

It is noted that present invention also offers the 8th embodiment, in the 8th embodiment, the magnetic sensor 414 magnetic head carries out displacement reciprocating motion along a linear scanning path vertical with paper money direction is sent, on the platform base 100 The both sides in the linear scanning path are provided with note input position sensor 101 and note output position sensor 102.More specifically, this hair In bright embodiment, when paper money coin is put into paper money platform, startup longitudinal direction is walked paper money motor 310 and is run at high speed, and paper money coin is quick In push-in money transmitting channel, when note input position sensor 101 detects paper money coin enters scanning area in place, control longitudinal direction is walked paper money and is driven Dynamic motor 310 is run with sample rate with the synchronous matching of lateral displacement motor 420.When paper money coin passes through note output position sensing After device 102, longitudinally walk paper money motor 310 and run at high speed instead and be involved in lower paper money coin.

More preferably, longitudinally walk paper money motor and two kinds of different speed are set, paper money coin walks paper money when magnetic image collection apparatus are carried out Speed compare it is relatively low, and paper money coin when paper money platform is put to note input position sensor 101 for it is time-consuming can using at a high speed twist with the fingers Paper money is until note input position sensor 101.Operating efficiency can be improved by this kind of mode.

Of course, longitudinally walking paper money motor 310 and lateral displacement motor 420 can be using stepper motor, should Stepper motor can be controlled by master control borad circuit, or by one piece of independent motor that can be communicated with master control borad circuit Control panel is controlled.In this manner it is possible to two speed of stepper motor of vertical and horizontal are adjusted in real time, to realize more preferably improving Magnetic image signal acquisition efficiency.

Present invention also offers the 9th embodiment, in the 9th embodiment, the lower paper money currency twirling mechanism 300 is in paper money coin entrance Place is provided with paper money coin inductive pick-up 320, and/or the master control borad circuit also electrically connects a display and a signal input apparatus 240.If paper money coin inductive pick-up 320 has sensed that paper money coin is put into, electric signal correspondingly is generated, master control borad electric circuit inspection is arrived After the electric signal, just drive longitudinal direction to walk paper money motor 310 and rotate, intelligence power saving again.More preferably, the detection of paper money coin can be believed Breath is shown on the display, the information such as including the true and false, the other, face amount of version.Signal input apparatus 240 can be keyboard, it is also possible to It is touch-screen.

More specifically, reference picture 6, master control borad circuit includes DSP image processing modules 210 and DSP image processing modules 210 motor drive components 220 for electrically connecting, liquid crystal display 230, signal input apparatus 240 and A/D converter circuit 251 etc..Its In, DSP processing modules include cpu chip and memory chip, and motor drive component 220 is used to realize to lateral displacement motor 420 controls that paper money motor 310 is walked with longitudinal direction, and the magnetic signal produced by the magnetic head of magnetic sensor 414 is then through magnetic signal Electrically connected with the AD conversion circuits after the treatment of amplifier 252.

Because what magnetic sensor 414 was exported is very faint voltage signal, it is necessary to can be just AD converted after amplifying Operation.Illustratively, the embodiment of the present invention is designed with the highly sensitive voltage amplifier of triple channel in circuit, is respectively passing through paper money coin Be amplified for magnetic signal by three road magnetic signal amplifiers 252, and the signal feeding A/D converter circuit 251 after amplification is carried out into modulus Conversion, the data after conversion are sent into DSP image processing modules 210 by certain form is carried out at image mosaic and display Reason.More preferably, three road magnetic signal amplifiers 252 are integrated in magnetic signal front-end collection amplification board with the unification of A/D converter circuit 251 On 250, then the magnetic signal front-end collection amplification board 250 is electrically connected with DSP image processing modules 210.

From figure three as can be seen that being uniformly distributed by magnetic head A, tri- magnetic heads of magnetic head B, magnetic head C on lateral displacement head hold 410 Install.Illustratively, it is assumed that each magnetic head effectively gathers stroke and is 60mm, 50DPI resolution ratio is gathered according to magnetic image（Every millimeter Two sampled points）Requirement, each magnetic head gathers 60X2=120 group data in the effective travel domestic demand of a line, and three magnetic heads are total Collection valid data Da+Db+Dc=120X3=360.

More preferably, in order to improve sample rate, when lateral displacement head hold 410 carries out horizontal left and right sidesing shifting motion, adopt The data and the number of reverse displacement acquisition gathered in positive-displacement with bi-directional synchronization magnetic signal acquisition, such transverse magnetic headstock According to the original position and end position contrast of sampled point, in order to ensure three sections of data of independent acquisition magnetic image signal The complete image of a width can be combined into, needs to be stored by specific form by the magnetic image signal data after AD conversion, The complete magnetic image data of a width can be preserved in internal memory, storage structure of the magnetic image signal data in internal memory is referring to Fig. 4.

More preferably, the embodiment of the present invention can also carry out function control by button, and the button both can be real Button, or by touch screen technology simulate come button, specific keypress function is as follows：

Start button：Push button startup longitudinal direction walk paper money motor 310 rotate and drive counting shaft 302 carry out longitudinal direction walk Paper is moved；

Magnetic head transverse shifting button：Start lateral displacement motor 420 after pushing button and drive Timing Belt, by driving Head hold gear control magnetic sensor 414 makees left or right transverse shifting on the head hold axis of guide 411；

Stop key：Press after stopping key, first stop walking paper money motor operation, then magnetic sensor 414 is reset into original Point position；

Magnetic image scans button：The key is pressed, starts to perform magnetic signal acquisition task.Specifically, magnetic head resets, system inspection Whether paper money platform on have paper money coin place, if having detected paper money coin, start longitudinal direction and walk paper money motor 310, when paper money coin is arrived if surveying During up to magnetic image mark scanning position, control magnetic head from left to right does reciprocal shift movement, and control banknote is all flat by sampling After platform, sampling completion motor is out of service, and magnetic head resets to origin position；

Magnetic image contrasts button：Pressing the key can will collect magnetic image feature with the internal standard for preserving by platform Magnetic image feature is contrasted, and the paper money coin relevant information is shown according to comparing result.

More specifically, carrying out paper money coin magnetic image feature detection with magnetic image acquisition platform in multi national river full width face of the present invention Method, comprise the following steps：

Paper money mouthful is put by what paper money coin to be detected was put into above-mentioned multi national river full width face magnetic image acquisition platform；

Paper money coin to be detected is involved in money transmitting channel；

Magnetic sensor 414 on lateral displacement head hold 410 does linear reciprocation on the direction vertical with paper money direction is walked Motion, progressively scans the magnetic image feature on paper money coin to be detected；

The magnetic image characteristic that storage is detected, is carried out at image conversion magnetic signal data by image processing module Reason.

Alternatively, the magnetic image feature that will can be stored and the standard magnetic image for prestoring of the invention are contrasted and generated Comparing result.

Alternatively, the present invention can according to comparing result pick out the version of the paper money coin not, the information such as denomination and the true and false.

Alternatively, the transfer rate of paper money coin to be detected is divided into first gear speed and second gear speed, the first gear speed Include more than second gear speed, the step of paper money coin to be detected is involved in into money transmitting channel：

Paper money coin to be detected is first quickly sent to the scanning area of magnetic sensor 414 using first gear speed；

Paper money is walked using second gear speed low speed in the scanning area of magnetic sensor 414, a line is shifted to meet head hold Required minimum time requirement.

More preferably, paper money coin inductive pick-up 320 can be set on acquisition platform, for example, after paper money coin is put into, collection When platform can detect paper money coin and be put into, automatic longitudinally walks paper money motor 310 and walks paper money speed with first grade and walks paper money, quickly Paper money coin is involved in money transmitting channel, when note input position sensor 101 detects paper money coin to arrive, then paper money driving electricity will be longitudinally walked automatically Machine 310 be adjusted to magnetic image for sample second gear speed, by paper money coin at the uniform velocity by magnetic sensor 414.Using speed point The time spent in shelves can reduce paper money coin and be sent to note input position sensor 101.

Alternatively, while will by the control lateral displacement motor of position sensor 413 of the termination of lateral displacement head hold 410 Magnetic sensor 414 resets, and restarts magnetic sensor 414 and moves back and forth, in the reciprocal fortune of this magnetic sensor 414 In dynamic, per transverse shifting once, system just carries out a line sampling to magnetic sensor 414, we term it the scanning of magnetic signal row.Often Once row scanning is completed, apparatus control is longitudinally walked paper money stepper motor and moved ahead N millimeters, then waits the completion of row scanning next time, Go round and begin again, constantly carry out.When machine is detected after paper money coin passed through note output position sensor 102, head hold is automatically multiple Position, magnetic sensor 414 revert to initial position and awaits orders, and waits the lower arrival of paper money coin.

The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (9)

1. a kind of multi national river full width face magnetic image acquisition platform, it is characterised in that：Including platform base（100）And governor circuit Plate, the platform base（100）It is provided with the lower paper money currency twirling mechanism for transmitting paper money coin（300）With for detecting magnetic chart on paper money coin As the magnetic signal sweep mechanism of feature（400）, the lower paper money currency twirling mechanism（300）Including what is electrically connected with the main control board Walk paper money motor in longitudinal direction（310）, the magnetic signal sweep mechanism（400）Including lateral displacement head hold（410）With the master The lateral displacement motor of control circuit board electrical connection（420）, located at the lateral displacement head hold（410）On with the master At least one magnetic sensor of control circuit board electrical connection（414）, the lateral displacement motor（420）It is described for driving Magnetic sensor（414）Make horizontal straight reciprocating motion, the magnetic sensor along the direction vertical with paper money direction is walked（414）'s Magnetic head（4141）Towards money transmitting channel.

2. multi national river full width face magnetic image acquisition platform according to claim 1, it is characterised in that：The lower paper money twists with the fingers paper money Mechanism（300）The banknote-sliding board that paper money direction sets gradually is walked including edge（301）The counting shaft vertical with paper money direction is walked（302）And set Located at the counting shaft（302）On note-twisting wheel（303）, it is described to send paper money motor for driving the counting shaft（302）Turn It is dynamic.

3. multi national river full width face magnetic image acquisition platform according to claim 2, it is characterised in that：It is described walk paper money drive Motor and the counting shaft（302）Between be driven by belt transmission or shaft coupling mode, and/or, the lateral displacement drives electricity Machine（420）With the lateral displacement head hold（410）Between be driven by belt or leading screw mode.

4. multi national river full width face magnetic image acquisition platform according to claim 1, it is characterised in that：The lateral displacement Head hold（410）Including the head hold axis of guide（411）, the magnetic sensor（414）Multiple, multiple magnetic can be provided with Sensor（414）Interval is independent to be socketed on the head hold axis of guide（411）On.

5. multi national river full width face magnetic image acquisition platform according to claim 1, it is characterised in that：The lateral displacement Head hold（410）Including the head hold axis of guide（411）Be socketed on the head hold axis of guide（411）On head support frame （412）, the magnetic sensor（414）It is provided with multiple, multiple magnetic sensors（414）It is both secured to the head support Frame（412）On.

6. multi national river full width face magnetic image acquisition platform according to claim 1, it is characterised in that：The lateral displacement The two ends of magnet stand head are provided with for detecting the magnetic sensor（414）Position sensor in place（413）, the position sensing Device（413）Electrically connected with the main control board.

7. multi national river full width face magnetic image acquisition platform according to claim 1, it is characterised in that：The governor circuit Plate also electrically connects the network communication device for being electrically connected with outer computer, and/or electrically connects for being carried out to scan image The mini-printer of real time print, and/or electrically connect the warning device for producing alert news to point out.

8. multi national river full width face magnetic image acquisition platform according to claim 1, it is characterised in that：The magnetic transducing Device（414）Displacement and reciprocating motion, the platform base are carried out along the linear scanning path vertical with paper money direction is sent（100）On Note input position sensor is provided with the both sides in the linear scanning path（101）With note output position sensor（102）.

9. according to any described multi national river full width face magnetic image acquisition platform of claim 1 to 8, it is characterised in that：It is described Lower paper money currency twirling mechanism（300）Paper money coin inductive pick-up is provided with paper money coin porch（320）, and/or the main control board is also electric Connect a display and a signal input apparatus（240）.