CN101162533B

CN101162533B - Paper money testing recognition device

Info

Publication number: CN101162533B
Application number: CN2006100480076A
Authority: CN
Inventors: 柳长庆; 赵同光; 于盛忠
Original assignee: LIAONING JULONG FINANCIAL EQUIPMENT CO Ltd
Current assignee: Julong Co Ltd
Priority date: 2006-10-13
Filing date: 2006-10-13
Publication date: 2010-04-07
Anticipated expiration: 2026-10-13
Also published as: CN101162533A; CN101162533C

Abstract

The invention discloses a paper money recognition device which is arranged inside various paper money processors and comprises an emitting head, a receiving head and an opaque shading body, wherein, the inside of the opaque shading body is provided with a light inlet pore canal and a light outlet pore canal crossed each other; moreover, the cross part of both pore canals is formed into a through hole with one side corresponding to the passing surface of a paper money; the emitting head and the receiving head are respectively arranged inside the light inlet pore canal and the light outlet pore canal with the terminals connected with a detection recognition circuit. With fast detection speed and high accuracy, the invention effectively solves the problem of dust prevention of a detection recognition device, thereby being more suitable for practical use.

Description

A kind of paper money testing recognition device

Technical field

The present invention relates to a kind of bill handling apparatus, specifically a kind of paper money testing recognition device that is applied in the paper money processing machine.

Background technology

In daily life and business activity, because bank note is impaired easily in the field of circulation, people often paste the back with impaired bank note with adhesive tape and continue to use, in addition, a kind of adulterium coin (a kind of counterfeit money, this counterfeit money is pasted through adhesive tape commonly used, perhaps overlap joint) is arranged at present, financial department all needs quickly and accurately its difference to be come in the paper currency sorting process.Because adhesive tape is transparent, detect often difficult realization with the printing opacity method, traditional method is to carry out go-on-go by measuring thickness device, broken bank note and counterfeit money that branch is detected reclaim.But because cellophane adhesive tape as thin as a wafer, has only about 0.1mm, the reliability of discerning in the testing process is not very high, brings certain difficulty for the sorting of bank note, promptly is difficult to guarantee the accuracy of identification, thereby has poor reliability, loss height and the low problem of precision.

Summary of the invention

For addressing the above problem, the object of the present invention is to provide a kind of a kind of paper money testing recognition device that utilizes light reflection principle to detect cellophane adhesive tape.

For achieving the above object, the present invention adopts technical scheme to be:

The present invention is installed in the various paper money processing machines, have emitting head, receive head and opaque occulter, wherein opaque occulter inside has light well road arranged in a crossed manner and bright dipping duct, in the light well road and the infall in bright dipping duct form one from a side corresponding to the through hole of bank note by face; Described emitting head and reception head are located at respectively in light well road and the bright dipping duct, and the terminals of emitting head and reception head link to each other with the detection identification circuit.

Described detection identification circuit has a single-chip microcomputer, and its output terminal links to each other with emitting head by light controlling device, receives head and is connected to the single-chip microcomputer input end by signal processor and multiple signals converter; Above-mentioned emitting head, reception head and opaque occulter also are located at the opposite side of described bank note by face, and the corresponding bank note of the through hole that its light well road and bright dipping duct infall form is by the another side of face; Described opaque occulter inside has many group light well roads and bright dipping duct, and described through hole is laterally arranged with the bank note direction of passage; The opening part of the through hole that opening makes progress is provided with dustproof translucent cover, has an angle of cut between the normal of the normal of this dustproof translucent cover reflecting surface and the reflecting surface of bank note; The light that the described angle of cut and emitting head send equates to the incident angle on bank note plane; Described opaque occulter is black or Dark grey; Inner each the duct inner wall surface of described opaque occulter is smooth.

The present invention has following beneficial effect and advantage:

1. detection speed is fast, the accuracy height.Because the present invention adopts the optical reflection principle, difference by note surface and adhesive tape surface light reflectivity properties is distinguished the bank note that has adhesive tape, under the situation of paper currency high-speed motion (3mm/s), identify as thin as a wafer adhesive tape enough exactly in the noncontact mode, thereby improved the precision that detects identification;

2. efficiently solve the dustproof problem that detects recognition device self.The present invention is provided with transparent dust cover at a certain angle above the pick-up unit that falls into the bank note dust easily, promptly blocks dust enters pick-up unit, has solved the problem of the light reflection interference of dustproof translucent cover own again, makes the present invention be more conducive to use in practice.

Description of drawings

Fig. 1～2 are apparatus of the present invention structural representation (), (two);

Fig. 3 A is the opaque light conductor structure side view of many groups in apparatus of the present invention;

Fig. 3 B is the A-A sectional view of Fig. 3 A;

Fig. 4 is apparatus of the present invention electrical structure block diagram;

Fig. 5 is apparatus of the present invention electrical schematic diagram.

Embodiment

Embodiment 1

Shown in Fig. 1～3, the present invention is for being installed on paper currency sorter, paper money counter, a kind of paper money identifier in the various paper money processing machines such as cash inspecting machine, present embodiment is an example with the paper money testing recognition device that is installed in the paper currency sorter, it has emitting head 1, receive 2 and opaque occulter 3, wherein opaque occulter 3 internal condition bank note heading width sizes are provided with the n group (in the present embodiment, n=16) light well road 7 of Jiao Chaing and bright dipping duct 6, in light well road 7 and the infall in bright dipping duct 6 form one from a side corresponding to n the through hole 8 of bank note by face, laterally arrange in a side with the bank note direction of passage, its scanning area has covered the All Ranges of one side when bank note passes through, another side at bank note is arranged incident light and reflected light in the same way, the identical opaque occulter 3 of inner structure promptly is set, have m through hole 8 corresponding bank note another sides, promptly the another side of bank note is carried out the detection identification of cellophane adhesive tape, wherein m can equate with the quantity of n, also can be unequal, on, a following measuring head (comprise emitting head 1 and receive the 2) setting of can staggering, m=n=16 in the present embodiment; Emitting head 1 and receive 2 terminals and detect identification circuit and link to each other.For the ease of the reflected light of distinguishing adhesive tape and prevent light diffuse reflection in the duct, opaque occulter 3 adopts black (also can adopt Dark grey), and its inner each duct inner wall surface has been carried out smooth treatment.Emitting head 1 is a light emitting diode in the present embodiment, receives 2 for receiving triode.

Shown in Fig. 4～5, described detection identification circuit has single-chip microcomputer, and its output terminal links to each other with emitting head 1 by light controlling device, receives 2 and is connected to the single-chip microcomputer input end by signal processor and multiple signals converter (it is AT89C2051 that present embodiment adopts model); In the foregoing circuit, light controlling device can be used for controlling width, the light power of emitting head 1 led pulse signal, the length of fluorescent lifetime etc., and also the emitting head 1 of may command bank note both sides is alternately luminous, in order to avoid light interferes with each other; Signal processor can will receive that a light signal of 2 outputs amplify and the anti-phase input end of delivering to single-chip microcomputer after the shaping processing again through the multiple signals converter that waits.

Apparatus of the present invention principle of work and the course of work are as follows: bank note enters cleaning-sorting machine with high-speed motion (30m/s) during through the sweep limit of apparatus of the present invention, because note surface is coarse, when visible light that emitting head 1 sends shines on the coin face 5 through light well road 7, can produce scattering, this scattered light enters through bright dipping duct 6 and receives 2 o'clock, it only is the sub-fraction of scattered light, thereby show very weak signal, and when posting cellophane adhesive tape on the coin face, because of the adhesive tape surface smooth smooth than the coin face, the light that shines on it is essentially direct reflection, be that its catoptrical major part can be for receiving 2 receptions, thereby demonstrating very strong signal, single-chip microcomputer changes to judge whether have adhesive tape on the bank note according to the signal of input, and accessory drive goes out its sorting.

Embodiment 2

Be that with the difference of embodiment 1 present embodiment considered will produce a large amount of dusts such as capillary fiber in the paper currency sorting process, as not taking measures, will inevitably stop up the duct, place of luminotron and receiving tube, particularly when through hole 8 is positioned at the bank note below, this problem is especially outstanding, in order to prevent emitting head 1 and to receive 2 a collection ash, present embodiment is provided with dustproof translucent cover 4 at the opening part of the through hole 8 that bank note bottom surface opening makes progress, has an angle of cut β between the normal of the normal of these dustproof translucent cover 4 reflectings surface and the reflecting surface of bank note, the light that this angle of cut β and emitting head 1 send preferably equates to the incident angle α on bank note plane, like this by be provided with dustproof translucent cover both blocks dust enter pick-up unit, can solve the catoptrical interference problems of dustproof translucent cover 4 itself.

Claims

1. paper money identifier that utilizes light reflection principle to detect cellophane adhesive tape, it is installed in the paper money processing machine, is provided with emitting head (1), receives head (2) and an opaque occulter (3) by face one side at bank note;

Described opaque occulter (3) internal condition bank note heading width size is provided with n group light well road (7) and bright dipping duct (6) arranged in a crossed manner, in every group of described light well road (7) and the infall of bright dipping duct (6) form one from a described side corresponding to the through hole (8) of bank note by face, described through hole (8) laterally arranges in the described side with the bank note direction of passage, its scanning area covered bank note by the time All Ranges of bank note by the one side of face;

Described emitting head (1) and reception head (2) are located at respectively in each described light well road (7) and bright dipping duct (6), and the terminals of described emitting head (1) and reception head (2) link to each other with the detection identification circuit;

It is characterized in that:

Also be provided with emitting head, receive head and opaque occulter, by the face opposite side at bank note to arrange incident light and reflected light by the same mode of face one side with described bank note;

Described bank note is identical by the opaque occulter inner structure of face one side with described bank note by the opaque occulter of face opposite side;

Described bank note is located at respectively in described bank note each described light well road and bright dipping duct by the opaque occulter of face opposite side by the emitting head and the reception head of face opposite side, and its terminals link to each other with the detection identification circuit;

Described bank note is that opening makes progress by the through hole (8) in the opaque occulter of face opposite side, and its corresponding bank note is by the face opposite side; The opening part of the through hole that described opening makes progress is provided with dustproof translucent cover (4), has an angle of cut (β) between the normal of the normal of described dustproof translucent cover (4) reflecting surface and the reflecting surface of bank note.

2. by the described paper money identifier of claim 1, it is characterized in that: described detection identification circuit has a single-chip microcomputer, the output terminal of described single-chip microcomputer by light controlling device be arranged on the described emitting head (1) of described bank note and link to each other by face one side and opposite side, be arranged on the described reception head (2) of described bank note by face one side and opposite side and be connected to described single-chip microcomputer input end by signal processor and multiple signals converter.

3. by the described paper money identifier of claim 1, it is characterized in that: opaque occulter (3) and described bank note the opaque occulter (3) by face opposite side of described bank note by face one side is black or Dark grey.

4. by the described paper money identifier of claim 1, it is characterized in that: described bank note is smooth by inner each the light well road (7) of opaque occulter (3) and each bright dipping duct (6) inner wall surface of face opposite side by the opaque occulter (3) and the described bank note of face one side.