CN200986721Y

CN200986721Y - Banknote detection identifying device

Info

Publication number: CN200986721Y
Application number: CN 200620093633
Authority: CN
Inventors: 柳长庆; 赵同光; 于盛忠
Original assignee: Individual
Current assignee: Julong Co Ltd
Priority date: 2006-10-13
Filing date: 2006-10-13
Publication date: 2007-12-05
Anticipated expiration: 2016-10-13

Abstract

The utility model discloses a paper currency recognition device arranging in various paper currency processors and having a transmitting head, a receiving head and an opaque shading body; wherein a light inlet channel and a light outlet channel are arranged crosswise within the opaque shading body; a through hole corresponding to a paper currency passing surface from a side is formed on a crossing of the light inlet channel and the light outlet channel; the transmitting head and the receiving head are arranged in the light inlet channel and the light outlet channel respectively; the terminals of the transmitting head and the receiving head are connected with a detection and recognition circuit. The utility model has the advantages of the fast detection speed, the high accuracy, which solves the dustproof problem of a recognition device effectively, thereby is more favorable for applying to practice.

Description

A kind of paper money testing recognition device

Technical field

The utility model 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.

The utility model content

For addressing the above problem, the purpose of this utility model 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 utility model adopts technical scheme to be:

The utility model 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 utlity model has following beneficial effect and advantage:

1. detection speed is fast, the accuracy height.Because the utility model 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 utility model is above the pick-up unit that falls into the bank note dust easily, be provided with transparent dust cover at a certain angle, be that blocks dust enters pick-up unit, solved the problem of the light reflection interference of dustproof translucent cover own again, make the utility model be more conducive to use in practice.

Description of drawings

Fig. 1～2 are the utility model apparatus structure synoptic diagram (), (two);

Fig. 3 A is the opaque light conductor structure side view of many groups in the utility model device;

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

Fig. 4 is the utility model device electrical structure block diagram;

Fig. 5 is the utility model device electrical schematic diagram.

Embodiment

Embodiment 1

Shown in Fig. 1～3, the utility model 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.

The utility model device 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 the utility model device, 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 testing recognition device, be installed in the paper money processing machine, it is characterized in that: have emitting head (1), receive head (2) and opaque occulter (3), wherein opaque occulter (3) inside has light well road (7) arranged in a crossed manner and bright dipping duct (6), the infall of light well road (7) and bright dipping duct (6) form one from a side corresponding to the through hole (8) of bank note by face; Described emitting head (1) and reception head (2) are located at respectively in light well road (7) and bright dipping duct (6), and the terminals of emitting head (1) and reception head (2) link to each other with the detection identification circuit.

2. by the described paper money testing recognition device of claim 1, it is characterized in that: described detection identification circuit has a single-chip microcomputer, its output terminal links to each other with emitting head (1) by light controlling device, receives head (2) and is connected to the single-chip microcomputer input end by signal processor and multiple signals converter.

3. by the described paper money testing recognition device of claim 1, it is characterized in that: above-mentioned emitting head (1), reception head (2) and opaque occulter (3) also are located at the opposite side of described bank note by face, and the corresponding bank note of through hole (8) that its light well road (7) and bright dipping duct (6) infall form is by the another side of face.

4. by claim 1 or 3 described paper money testing recognition devices, it is characterized in that: described opaque occulter (3) inside has many group light well roads (7) and bright dipping duct (6), and described through hole (8) is laterally arranged with the bank note direction of passage.

5. by claim 1 or 3 described paper money testing recognition devices, it is characterized in that: the opening part of the through hole that opening makes progress (8) is provided with dustproof translucent cover (4), has an angle of cut (β) between the normal of the normal of this dustproof translucent cover (4) reflecting surface and the reflecting surface of bank note.

6. by the described paper money testing recognition device of claim 5, it is characterized in that: the light that the described angle of cut (β) and emitting head (1) send equates to the incident angle (α) on bank note plane.

7. by the described paper money testing recognition device of claim 1, it is characterized in that: described opaque occulter (3) is black or Dark grey.

8. by the described paper money testing recognition device of claim 1, it is characterized in that: inner each the duct inner wall surface of described opaque occulter (3) is smooth.