TW502227B - Automatic adjusting paper money identifying system of paper money exchanging machine - Google Patents

Abstract

The present invention is an automatic adjusting paper money identifying system of paper money exchanging machine. The system mainly comprises a transmitting unit and a receiving unit, wherein the transmitting unit has at least a light-emitting diode (LED) and a control chip, the receiving unit has at least an electro-optic crystal and an N-channel MOSFET, when the CPU of the system detects the variation of the sensed current outputted by the receiving unit, the MOSFET is controlled to the ON state, part of the sensed current is shunt to the MOSFET, so that the sensed current value is adjusted to the readable range. At the same time, the control chip is controlled to adjust the driving current of the LED, so that the LED can emit a light with a certain brightness. Thus, the LED can keep emitting light with fixed brightness constantly onto the paper money when the system identifies the paper money. The value of sensed current the light from the paper money generated by the electro-optic crystal can be kept in a readable range constantly.

Description

502227 V. Description of the invention (1) ____ Background of the invention: The present invention is a kind of banknotes that can be exchanged, especially by automatically adjusting the automatic correction. The light diode of the Jiu Jiu identification system can keep emitting one or two forever. Secondly, the paper recognition system can be used to talk about the photoelectricity of the banknote recognition system. The light of the degree is on the paper currency, and the current value can also be kept forever. Take the induction technology produced by the above light: f: Within the-taken range. According to the design of the real banknote identification pattern on the traditional banknote exchange machine, the device can be used to identify the banknotes that cannot be exchanged. ..... y no, so that the pseudo general banknote identification system is set on a delivery mechanism within the coin σ of the child exchange machine, so that the banknote enters the transmission unit of the identification system on the conveying mechanism from the coin slot. Can emit light to the paper ^ try the recognition unit "from, light: and produce a sense of induction current to know whether the banknote is a real banknote gas. Beiwei, the bill of exchange of the conventional banknote exchange = for use (LED) emits light: and the photo-crystal receives the light to generate an induced current, however, the light-emitting diode naturally decays over a period of time and life, resulting in a decrease in brightness, which makes the photo-crystal unable to sense; The induced current value causes the recognition effect to be worse, and the photoelectric crystal Erlu will generate different induced current values due to the change of temperature. &Quot; Summary of the invention: In view of this, in order to improve the banknotes exchanged for conventional paper Identify the shortcomings of the system 'the inventor's long-term research and experiment',

Page 5 502227 V. Description of the invention (2) ------------ Designed the paper-seeding machine of the present invention which can automatically change the paper% identification system. An object of the present invention is to provide a currency recognition system that can automatically adjust the banknote exchange rate. When the central processing unit of the system is luxurious: when the induced current output by the receiving unit changes That is to control the "M SFSF E τ to the open state, so that part of the current of the induced current is shunted to the MO SFE Ding, so that the value of the induced current is adjusted to a readable range, and at the same time, and control A control chip continuously adjusts the driving current for driving a light-emitting diode, so that the light-emitting diode can emit light with a certain brightness. In this way, the system can keep emitting light for a long time in the spring when the system recognizes banknotes. A certain brightness of light onto the banknote, and the value of the induced current generated by the photoelectric crystal from the light on the banknote can be kept within a readable range forever ', so that the system can maintain the effect of recognizing banknotes forever. In order that the review committee can further understand and understand the purpose, shape, structural features, and functions of the present invention, the embodiments are illustrated in detail below with reference to the drawings. Detailed description:

The present invention is a "banknote identification system capable of automatically adjusting banknote changers", as shown in the first figure. The system mainly includes a transmitting unit 1 and a receiving unit 2. Among them, the transmitting unit 1 is provided with at least ^ A light-emitting diode (LED) 1 1 and a control chip 1 3, and the receiving unit 2 is provided with at least one photoelectric crystal 21 and an N-channel MOSFE Ding 2 3 ', when one of the systems is centrally processed When the unit (cPU) detects a change in the induced current output by the receiving unit 2, it controls the MOS

502227 V. Description of the invention (3) PET 2 3 is turned on, so that part of the induced current is shunted to the MOS FET2 3 so that the induced current value is adjusted to a readable range, At the same time, the control chip 13 is controlled to continuously adjust the driving current for driving the light emitting diode 11 so that the light emitting diode II can emit light with a certain brightness. In the present invention, an NP light-emitting diode (base) and a control chip 1 are used as the N p N electrical resistor R 1 and the voltage value V re is: driving power (where the VNPN transistor drops, R 1 〇 Photodiode 1 can work in the same hair color as this model) will not be in the present invention, N electric crystal 1 1 phase control crystal 3 provides 1 light emitting crystal 1 0 series f control current I fb is the control body 1 5 It is the driving range of resistance 1, which is the same as that of V. It is the same as that of V. Please refer to the body 1 5 for connection, and the driving power of chip 1 3, the bias connection of NPN 5, and the control chip = ( The voltage drop of V b wafer 1 is ^ R 1 0 and the current I is sent. Please refer to the body 1 1 (f value. Please refer to the NPNP medium voltage transistor resistance center diagram, the emitting single N transistor 15 N radio transistor 15 A set of V 0 ut connected transistor 1 5 extreme end is connected to the input terminal, so that the driver (by using a resistor R 9 through the body 15 when the light emitting diode 11 and And a processing unit can send an electric control f-V be 3 to raise the electric power f of V f, which will be bright first, such as: The total supply is the luminous resistance value) Infrared wafer 1 3 V f) / R voltage value, V diode 1 1, the diode 1 1 line is continuously changed. The V f value, blue, and red reference electricity pass through the public 10 The pressure is driven by be will keep I visible, colorless, green as shown in the first picture, the control chip 1 3

Page 7 502227 5. Description of the invention (4) It is a micro-power 8 groups of continuously addressable 8-bit control chip, and it can provide 8 groups of independent channel outputs (as shown in the figure, VoutA ~ Vo ut Η), which are common to a group Reference voltage Vref input terminal (pin6 in the figure), a continuous input terminal (pi η 9, DIN in the figure), and a serial interface (pin7, / CS / LD, chip selection / Load input), when the serial interface is a low potential (L ow), the SCK terminal of the control chip 1 3 (picture n8 in the figure) can transfer the continuous input data terminal (DIN) data to a register When the serial interface is at a high potential (H igh), the SCK terminal of the control chip 13 will be disabled, so that the data of the continuous input data terminal (DIN) will be loaded into the control chip 1 from the ⑩ register. In the register of 3, the output voltage value of the output of 8 independent channels at the same time will change. ^ In the present invention, please refer to the first figure. The photoelectric crystal 21 is used to sense the light emitted from the light-emitting diode 11 and generates an induced current that is proportional to the light intensity emitted by the light-emitting diode 11. , The induced current will flow into a series resistor circuit (as shown in R5 and R1 1) and a non-reverse 0P25 Vin (as shown in pin3 in the figure) (where the non-reverse 0P25 is provided by the resistor R11) Voltage), the voltage value V ut = V i η χ (1+ (R12 / R6)) generated by the non-inverting OP25 output terminal (pi η 1) is proportional to the induced current. When the central processing unit (CPU) detects that the voltage value Vout which is output from the output terminal of the non-inverting 〇P 2 5 has changed and cannot be read, the ADJ terminal of the MOSFET 23 is controlled (as shown in pinl in the figure), so that the MOSFET 23 Pi n3 to pi n2 are short-circuited,

Let the sensed deer fast, + s F Ρ = part of the current of electricity V (^ Τ 〇 〇 in the garden. D, so that the sensed electric v. In the present invention 'Please refer to the first: when it is started, its central processing 50 As shown in Figure I1), the current value should be shunted to the readable range shown in Figure 2. When the unit of the banknote recognition system will be turned on according to the following steps 0 2) Judgment, enter 0 4 0 3) Enter 0 4) On the control current, when the driving pole body recognizes the banknote in the present invention, it (3 0 1) sends out 0) Normal stop (3 0 2) borrows a 2 memory to read the induced current value in step (2 ); In the standby state, part of the current of M 0 SFE to make the induction at the same time and control the light-emitting diode 1 1 can send 'Please refer to the signal of the central processing unit address to' to check the operation; if it is waiting for maintenance; rotation The mechanism will take the pre-set whether it is readable 0 3); whether it is ready to eat banknotes; τ 2 3 to Kai is shunted to the current value is modulated by the control chip 1 1 driven to a certain brightness as shown in the three pictures, the yuan will be based on all of the following The output of banknotes change machine ' Then, into the open state to be 13 Μ〇S entire current light. When the steps of banknotes / entering each week, the following steps; If it is the step (2), the range of the induction F ET 2 3 is continuously adjusted so that the light-emitting device can be exchanged for processing: the system (I / edge equipment is abrupt; otherwise, the banknote entered through the coin slot Transport into

502227

In this way, 1 can be a permanent body 2 1 from the scope of reading and the purpose, the patent application case, 'Thank you for the above structural characteristics of the paper currency exchange machine;) Interpret the induction current to determine whether the incoming banknotes are real banknotes ? If yes, push the banknote into the cash box, and then continue to step (302); otherwise, exit the banknote through the coin slot, and then, continue to step (302). In this step, the central The processing unit also judges whether the induced current value is within a readable range. If #, the control unit controls MOSF ET 2 3 to the on state, so that part of the induced current is shunted to the MOSF Ε T 2 3, so that the induced current value is adjusted to a readable range, and at the same time, read and control the control chip 1 3 to continuously adjust the driving current to drive the light emitting diode 1.1, so that the light emitting two The polar body 11 can emit light of a certain brightness. 'When the banknote recognition system recognizes banknotes, the light-emitting diode 1 keeps emitting a certain amount of light onto the banknotes, and the induced current value generated by the light on the photoelectric crystal banknotes can be kept within a constant range, so that the system can be maintained for a long time. Recognize the banknotes; the temple was sent out; it has achieved its effect, and it is necessary to use the creation of Lu Youyou, which is in line with the invention to protect the creator. σ Jun Bureau has any suspicions that the 'is only the best of the present invention and is not limited to this, red ^ /, * example, but anyone of the present invention who is familiar with the art in the present invention page 10 502227 5 2. Description of the invention (7) Changes or modifications that can be easily considered can be covered by the patent scope of the following case.

Page 11 502227 Schematic description [Schematic description] The first diagram is a schematic diagram of the circuit of the present invention. The second one is the operation flow chart of the startup of the present invention. The third figure is a flow chart when the present invention recognizes banknotes. [Description of component symbols] 1. Transmitting unit 1 1. Light-emitting diode 1 3. Control chip 1 5. N P N transistor 2. Receiving unit

2 1, Photoelectric crystal 23, MoSFET 2 5, Non-reverse 0P

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Claims (1)

The scope of patent application is a paper currency recognition system that can be adjusted automatically. The system includes a transmitting unit and a receiving unit. Among them, the transmitting unit has at least one light-emitting diode (LED) and one Control the chip, and the receiving unit is provided with at least one photoelectric crystal and an N-channel MOSFET. When a central processing unit (匸 PU) of the system detects a change in the induced current output by the receiving unit, the control M is controlled. 〇SF Ε τ to the on state, so that part of the induced current is shunted to the MOSFET, so that the induced current value can be adjusted to a readable range, and at the same time, the control chip is controlled to continuously The driving current for driving the light-emitting diode is adjusted so that the light-emitting diode can emit light of a certain brightness. X The banknote identification system described in item 1 of the scope of the patent application, wherein the emission terminal of the crystal and the transistor are The input voltage of the hair body is connected to the control chip. The driving voltage of the light emitting diode can be changed by the transistor drive to maintain the working range. The banknote identification system described in item 1 of the profit scope, in which the control group can continuously address 8-bit independent control group independent channel output, with a set of common input terminal, and a continuous input data terminal as described in the first patent application scope. The banknote changer described above can automatically adjust the emission unit, which also includes an NPN electro-optic diode connected, and the electrical crystal connection 'makes the driving light-emitting diode provided by the control chip to emit light, and the constant current' causes the light-emitting diode to protect A certain brightness of light. The banknote changer can be automatically adjusted. The chip can be a micropower 8-chip, and it can provide an 8-channel reference voltage Vref input and serial interface. The banknote changer can be automatically adjusted. 502227 6.Patent recognition system for patent applications, in which the photoelectric crystal senses the light emitted from the light-emitting diode and generates induction currents that are proportional to the light intensity emitted by the light-emitting diode, and the induced currents will flow into a series In the resistance circuit and a non-inverting op, when the central processing unit detects that the voltage value output from the output terminal of the non-inverting op is changed and cannot be read, that is, Μ〇S F E T is made short-circuited state, enabling the induction current portion of the current is shunted to the parts of the Μ〇S F Ε Τ, so that the induced current is adjusted to a value within the range of the reading. Page 14