CN1475975A - Photo electric comprehensive false detecting device of coin identifying equipment - Google Patents
Photo electric comprehensive false detecting device of coin identifying equipment Download PDFInfo
- Publication number
- CN1475975A CN1475975A CNA021143420A CN02114342A CN1475975A CN 1475975 A CN1475975 A CN 1475975A CN A021143420 A CNA021143420 A CN A021143420A CN 02114342 A CN02114342 A CN 02114342A CN 1475975 A CN1475975 A CN 1475975A
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- coin
- detecting device
- photo electric
- identifying equipment
- electric comprehensive
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Abstract
An integrated photoelectric forge detector for coin recognizer features that a pair of inductive inducers is arranged at both sides of coin channel and a coupled transformer is arranged close to said inducers for detecting the material quality of coin, and two pairs of optical emitting-receiving devices are arranged in the center of magnetic ring of said inducer and transformer for measuring the width of coin.
Description
Technical field
The present invention relates to a kind of coin identifying equipment, particularly relate to a kind of photo electric comprehensive false detecting device of coin identifying equipment.
Technical background
Along with popularizing of various self-service application apparatuss, use the occasion of Coin validator more and more, there are smash and a large amount of game moneys on the market, therefore the inspection puppet to coin has proposed very high requirement.The Coin identifying apparatus of Shi Yonging is that 1 or 2 inductive coils are set in the both sides of coin passage mostly in the market, under the effect of the electromagnetic field that inductive sensor produces, detect coin by the time each inductive sensor impedance variation, determine the true and false of coin with this.This antiforge detecting device means are more single, have inspection artifact or the high problem of reject rate in varying degrees.
Summary of the invention
Of the present invention with the photo electric comprehensive false detecting device that provides a kind of simple in structure, identification rate is high, reject rate is low coin identifying equipment.
For achieving the above object, the technical solution used in the present invention is: in the both sides of coin passage a pair of inductive sensor is set, is provided with a coupling transformer near inductive sensor.
In the above-mentioned photo electric comprehensive false detecting device, the both sides of its coin passage are provided with two pairs of light R-T units of being made up of luminotron and receiving tube at least.
Above-mentioned two pairs of luminotrons and receiving tube are located at the magnet ring center of inductive sensor and coupling transformer respectively.
Above-mentioned luminotron and receiving tube adopt the pin hole outer cover.
Because the present invention has adopted technique scheme, utilize two pairs of infrared receiving/transmission pipes of inductive coil and transformer on the one hand, can accurately record coin by the time two relative times, like this by the distance between two known receiving tubes can try to achieve coin by the time speed and width.In addition, when coin passes through inductive coil,, determine the material of coin thus because different coin materials will change the impedance of inductive coil, thereby the frequency of the oscillatory circuit of being made up of inductive coil and phase place are changed.When coin passes through transformer, the induction coefficient of transformer is changed, thereby the output terminal waveform of transformer can produce different changes in amplitude owing to the material difference by coin.Like this, utilize this covering device, just can accurately measure the width and the material of different Currency Types, thereby realize that inspection is pseudo-and select Currency Type.
Below in conjunction with accompanying drawing structure of the present invention and principle are further described.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 measures the electrical schematic diagram of coin width circuit for utilizing photoelectric tube among the present invention.
Fig. 3 measures the electrical schematic diagram of coin width circuit for utilizing photoelectric tube among the present invention.
Fig. 4 measures the electrical schematic diagram of coin material circuit for telefault among the present invention.
Fig. 5 measures the electrical schematic diagram of coin material circuit for transformer among the present invention.
Fig. 6 for no coin by the time when having coin to pass through the output waveform of inductance measurement coin material circuit.
Embodiment
Referring to Fig. 1, structure of the present invention is, a pair of inductive sensor L1, L2 are set in the both sides of coin passage 1, and inductive sensor L1, L2 are to be inductive coil or two mutual inductors that characteristic is different of the identical band magnet ring of two characteristics.Form one group of light R-T unit in the setting of the magnet ring center of described inductive sensor L1, L2 by luminotron D1, receiving tube Q1, near distance inductive sensor L1 the same side a coupling transformer T is set, the magnet ring center of coupling transformer T is provided with by luminotron D2, receiving tube Q2 forms another group light R-T unit.
For making range finding more accurate, above-mentioned luminotron and receiving tube all adopt the pin hole outer cover.Also can increase many in addition again to light R-T unit.
Referring to Fig. 2,3, Fig. 2,3 utilizes photoelectric tube to measure the electrical schematic diagram of coin width circuit.The principle of work of Fig. 2, Fig. 3 is identical, when no coin passes through, the emission light of power valve D1 receives through receiving tube Q1, make receiving tube Q1 conducting, comparer U1A exports high level, when coin passes through, receiving tube Q1 does not receive the emission light of power valve D1, receiving tube Q1 ends, comparer U1A output low level, pulse with certain width of comparer U1A output like this.Equally, coin by the time comparer U1B pulse of also exporting a same width, just comparing with comparer U1A has certain time-delay.The relative pulse width that utilizes two pairs of photoelectric tubes to record can record accurate coin width.
Referring to Fig. 4, Fig. 4 measures the electrical schematic diagram of coin material circuit for telefault among the present invention.Two inductive sensor L1, L2 are serially connected, and the input end of a voltage follower of being made up of operational amplifier UD is received in its output, and the end of oppisite phase of a proportional amplifier of being made up of operational amplifier UA is received in the output of voltage follower.As shown in Figure 6, the output waveform figure of operational amplifier UA when waveform a passes through for no coin, waveform b is the output waveform figure of operational amplifier UA when having coin to pass through.Because coin is by influencing the impedance variation of inductive sensor, therefore, the output waveform of proportional amplifier also can change, and changes the eigenwert that can obtain coin material thus.
Referring to Fig. 5, be the electrical schematic diagram of transformer measurement coin material circuit among the present invention, operational amplifier UC, UD be the proportion of composing amplifier respectively, and operational amplifier UB, UA form voltage follower respectively.At the former limit of transformer T input sine wave, when coin passed through, coin can make the induction coefficient of transformer T change.Like this coin of unlike material by the time, can obtain the waveform of different amplitudes at the output terminal of voltage follower UA, can obtain the eigenwert of coin material thus.
Below only being a preferred embodiment of the present invention, is not limitation of the present invention, and equivalent variations and modification that those of ordinary skill in the art is done according to spirit of the present invention all belong to the protection domain of claim of the present invention.
Claims (4)
1, a kind of photo electric comprehensive false detecting device of coin identifying equipment, the both sides that are included in coin passage are provided with a pair of inductive sensor, it is characterized in that: be provided with a coupling transformer near the inductive sensor of coin passage one side.
2, the photo electric comprehensive false detecting device of coin identifying equipment according to claim 1 is characterized in that: be provided with two pairs of light R-T units of being made up of luminotron and receiving tube at least in the both sides of coin passage.
3, the photo electric comprehensive false detecting device of coin identifying equipment according to claim 2 is characterized in that: described luminotron and receiving tube are located at the magnet ring center of inductive sensor and coupling transformer respectively.
4, the photo electric comprehensive false detecting device of coin identifying equipment according to claim 2 is characterized in that: described luminotron and receiving tube adopt the pin hole outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021143420A CN1475975A (en) | 2002-08-16 | 2002-08-16 | Photo electric comprehensive false detecting device of coin identifying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021143420A CN1475975A (en) | 2002-08-16 | 2002-08-16 | Photo electric comprehensive false detecting device of coin identifying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1475975A true CN1475975A (en) | 2004-02-18 |
Family
ID=34142031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021143420A Pending CN1475975A (en) | 2002-08-16 | 2002-08-16 | Photo electric comprehensive false detecting device of coin identifying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1475975A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831691A (en) * | 2012-08-21 | 2012-12-19 | 上海海事大学 | Electromagnetic sensor-based coin sorting and counterfeit detecting device and sorting and counterfeit detecting method thereof |
-
2002
- 2002-08-16 CN CNA021143420A patent/CN1475975A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831691A (en) * | 2012-08-21 | 2012-12-19 | 上海海事大学 | Electromagnetic sensor-based coin sorting and counterfeit detecting device and sorting and counterfeit detecting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |