Self-learning system suitable for counter management of currency count machine and currency count machine

Abstract

The utility model relates to the field of cash-counting machines, and discloses a self-learning system suitable for cash-counting machine paired tubes and a cash-counting machine, the system comprises an emission control circuit, a tracking control circuit, a processing circuit and a control circuit, the emission control circuit and the tracking control circuit are used for controlling emission tubes, the processing circuit is used for processing the processing circuit, and the processing circuit is used for processing the processing circuit. And the real-time performance and state of the geminate transistors are judged through the difference generated by the two control modes, so that the correction coefficient of each startup is obtained, the internal resistance of the processing circuit is corrected in time, the whole circuit is fused into a closed-loop controllable system, and the debugging and calibration efficiency of the currency counter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of currency counting machine, concretely relates to a self -learning system suitable for currency counting machine pair pipe and currency counting machine. BACKGROUND

[0002] At present, when using conventional infrared pair pipe control circuit, how to improve the infrared pair pipe debugging calibration efficiency problem is often encountered, and after debugging calibration, with the long -term use of user, the previous debugging calibration invalidation caused by the emission tube aging attenuation, currency counting channel dust and dirt, maintenance personnel often need to remove dust and debug again. SUMMARY

[0003] Therefore, the utility model provides a self -learning system suitable for currency counting machine pair pipe and currency counting machine to solve how to realize the problem of low currency counting machine debugging calibration efficiency.

[0004] First, the utility model provides a self -learning system suitable for currency counting machine pair pipe, and the currency counting machine includes first pair pipe and second pair pipe, the anode of the emission pair pipe component of first pair pipe and the anode of the emission pair pipe component of second pair pipe are all connected with power supply voltage, and the first end of the receiving pair pipe component of first pair pipe and the first end of the receiving pair pipe component of second pair pipe are all connected with power supply voltage, the system includes: emission control circuit, tracking control circuit, processing circuit and control circuit, wherein the control end of emission control circuit is connected with the first output end of control circuit, the first end of emission control circuit is grounded, and the second end of emission control circuit is connected with the cathode of the emission pair pipe component of first pair pipe and the cathode of the emission pair pipe component of second pair pipe, the control end of tracking control circuit is connected with the second output end of control circuit, the first end of tracking control circuit is grounded, and the second end of tracking control circuit is connected with the cathode of the emission pair pipe component of first pair pipe and the cathode of the emission pair pipe component of second pair pipe, the first input end and the second input end of processing circuit are connected with the second end of the receiving pair pipe component of first pair pipe and the second end of the receiving pair pipe component of second pair pipe respectively, the first output end and the second output end of processing circuit are connected with the first input end and the second input end of control circuit respectively, and the control end of processing circuit is connected with the third output end of control circuit.

[0005] The utility model utilizes emission control circuit, tracking control circuit to control emission tube, and judges the real -time performance and state of pair pipe through the difference generated by two kinds of control modes, and regulates and controls through software logic, and fuses the whole circuit into a closed loop controllable system, thereby improving currency counting machine debugging calibration efficiency.

[0006] In an alternative embodiment, the emission control circuit comprises a first resistor, a second resistor, a third resistor and a first triode, wherein the emitter of the first triode is connected to ground, the collector of the first triode is connected to the cathode of the emission triode assembly of the first pair of tubes through the first resistor, the collector of the first triode is connected to the cathode of the emission triode assembly of the second pair of tubes through the second resistor, and the gate of the first triode is connected to the first output terminal of the control circuit through the first resistor.

[0007] In an alternative embodiment, the tracking control circuit comprises a fourth resistor and a second triode, wherein the emitter of the second triode is connected to ground, the collector of the second triode is connected to the cathode of the emission triode assembly of the first pair of tubes and the cathode of the emission triode assembly of the second pair of tubes respectively, and the gate of the second triode is connected to the second output terminal of the control circuit through the fourth resistor.

[0008] In an alternative embodiment, the processing circuit comprises a collection circuit, a first adjusting circuit, a second adjusting circuit and a feedback circuit, wherein the first input terminal and the second input terminal of the collection circuit are connected to the second end of the receiving triode assembly of the first pair of tubes and the second end of the receiving triode assembly of the second pair of tubes respectively, the first output terminal and the second output terminal of the collection circuit are connected to the first input terminal of the first adjusting circuit and the second input terminal of the second adjusting circuit respectively, the output terminal of the first adjusting circuit is connected to the first input terminal of the control circuit and the first input terminal of the feedback circuit, the output terminal of the second adjusting circuit is connected to the second input terminal of the control circuit and the second input terminal of the feedback circuit, the first output terminal and the second output terminal of the feedback circuit are connected to the second input terminal of the first adjusting circuit and the second input terminal of the second adjusting circuit respectively, and the control terminal of the feedback circuit is connected to the third output terminal of the control circuit.

[0009] In an alternative embodiment, the collection circuit comprises a first collection unit and a second collection unit, wherein the input terminal of the first collection unit is connected to the second end of the receiving triode assembly of the first pair of tubes, and the output terminal of the first collection unit is connected to the first input terminal of the first adjusting circuit; and the input terminal of the second collection unit is connected to the second end of the receiving triode assembly of the second pair of tubes, and the output terminal of the second collection unit is connected to the first input terminal of the second adjusting circuit.

[0010] In an alternative embodiment, the first adjusting circuit comprises: a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor and a first operational amplifier, wherein the non-inverting input terminal of the first operational amplifier is connected with the first output terminal of the sampling circuit through the fifth resistor, the inverting input terminal of the first operational amplifier is connected with the first output terminal of the feedback circuit, the inverting input terminal of the first operational amplifier is also connected with the ground through the sixth resistor, the output terminal of the first operational amplifier is connected with the first input terminal of the feedback circuit and the first input terminal of the control circuit, the output terminal of the first operational amplifier is also connected with the ground through the seventh resistor, the positive supply terminal of the first operational amplifier is connected with the power supply voltage, the positive supply terminal of the first operational amplifier is also connected with the ground through the first capacitor, and the negative supply terminal of the first operational amplifier is connected with the ground.

[0011] In an alternative embodiment, the first adjusting circuit comprises: a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor and a first operational amplifier, wherein the non-inverting input terminal of the first operational amplifier is connected with the first output terminal of the sampling circuit through the fifth resistor, the inverting input terminal of the first operational amplifier is connected with the first output terminal of the feedback circuit, the inverting input terminal of the first operational amplifier is also connected with the ground through the sixth resistor, the output terminal of the first operational amplifier is connected with the first input terminal of the feedback circuit and the first input terminal of the control circuit, the output terminal of the first operational amplifier is also connected with the ground through the seventh resistor, the positive supply terminal of the first operational amplifier is connected with the power supply voltage, the positive supply terminal of the first operational amplifier is also connected with the ground through the first capacitor, and the negative supply terminal of the first operational amplifier is connected with the ground.

[0012] In an alternative embodiment, the feedback circuit comprises: a digital potentiometer, wherein the first input terminal and the second input terminal of the digital potentiometer are connected with the output terminal of the first adjusting circuit and the output terminal of the second adjusting circuit respectively, the first input terminal and the second input terminal of the digital potentiometer are connected with the second input terminal of the first adjusting circuit and the second input terminal of the second adjusting circuit respectively, and the control terminal of the digital potentiometer is connected with the third output terminal of the control circuit.

[0013] The digital potentiometer as the feedback resistor of the negative feedback operational amplifier circuit can flexibly adjust the amplification coefficient and the correction coefficient of the sampling circuit, and ensures that the tube assembly can be operated for a long time without maintenance.

[0014] In a second aspect, the utility model provides a point counting machine, it includes: the self -learning system of first aspect and its any optional implementation for the tube of point counting machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or prior art description, obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0016] Figure 1 This is a composition diagram of a self-learning system for banknote counter tubes according to an embodiment of the present invention;

[0017] Figure 2 This is a diagram illustrating the composition of another self-learning system for banknote counter tubes according to an embodiment of the present invention;

[0018] Figure 3 This is a partial circuit structure diagram of a self-learning system for a banknote counter tube according to an embodiment of the present invention;

[0019] Figure 4 This is a diagram illustrating the composition of another self-learning system for banknote counter tubes according to an embodiment of the present invention;

[0020] Figure 5 This is a circuit structure diagram of the first adjustment circuit according to an embodiment of the present utility model;

[0021] Figure 6 This is a circuit structure diagram of the second adjustment circuit according to an embodiment of the present utility model;

[0022] Figure 7 This is a circuit structure diagram of a digital potentiometer according to an embodiment of the present invention;

[0023] Figure 8 This is a circuit structure diagram of the control circuit according to an embodiment of the present utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] This embodiment provides a self-learning system suitable for the tube pairs of a banknote counter. The banknote counter includes a first pair of tubes and a second pair of tubes, wherein both the first pair of tubes and the second pair of tubes are composed of a transmitting tube assembly and a receiving tube assembly. The anode of the transmitting tube assembly LED1 of the first pair of tubes and the anode of the transmitting tube assembly LED2 of the second pair of tubes are both connected to the power supply voltage VCC. The first terminal of the receiving tube assembly D1 of the first pair of tubes and the first terminal of the receiving tube assembly D2 of the second pair of tubes are both connected to the power supply voltage VCC. Figure 1 As shown, the self-learning system for banknote counter tubes includes: a transmission control circuit 1, a tracking control circuit 2, a processing circuit 3, and a control circuit 4.

[0026] As Figure 1 shown, the control end of the emission control circuit 1 is connected with the first output end of the control circuit 4, the first end of the emission control circuit 1 is grounded, and the second end of the emission control circuit 1 is connected with the cathode of the emission pair tube assembly LED1 of the first pair tube and the cathode of the emission pair tube assembly LED2 of the second pair tube.

[0027] As Figure 1 shown, the control end of the tracking control circuit 2 is connected with the second output end of the control circuit 4, the first end of the tracking control circuit 2 is grounded, and the second end of the tracking control circuit 2 is connected with the cathode of the emission pair tube assembly LED1 of the first pair tube and the cathode of the emission pair tube assembly LED2 of the second pair tube.

[0028] As Figure 1 shown, the first input end and the second input end of the processing circuit 3 are respectively connected with the second end of the receiving pair tube assembly D1 of the first pair tube and the second end of the receiving pair tube assembly D2 of the second pair tube, the first output end and the second output end of the processing circuit 3 are respectively connected with the first input end and the second input end of the control circuit 4, and the control end of the processing circuit 3 is connected with the third output end of the control circuit 4.

[0029] Specifically based on Figure 1 the structure shown, the self-learning process of the pair tube of the currency counting machine is as follows:

[0030] 1. Before the currency counting machine is shipped, it needs to enter the pair tube debugging state to obtain the basic value of the pair tube tracking value, and the specific process is as follows:

[0031] (1) Use a production debugging tool paper to shield the emission pair tube assembly LED1 of the first pair tube, that is, shield LED1, wherein the production debugging tool paper can be 80g of printed paper as raw material, and the size is 30*30mm after plastic packaging.

[0032] (2) After the control circuit 4 controls the emission control circuit 1 to be turned on, the processing circuit 3 collects the initial output voltage of the second end of the receiving assembly of the first pair tube, and the processing circuit 3 sends the initial output voltage of the second end of the receiving assembly of the first pair tube to the control circuit 4 after preprocessing.

[0033] (3) The control circuit 4 adjusts the initial output voltage of the second end of the receiving assembly of the first pair tube to a preset voltage threshold value by controlling the internal resistance value of the processing circuit 3, and the preset voltage threshold value can be 2V. After the initial output voltage of the second end of the receiving assembly of the first pair tube is adjusted to the preset voltage threshold value, the control circuit 4 records the current internal resistance value of the processing circuit 3, which is denoted as SET_AUTO_JSZ.

[0034] (4) Use the production debugging tool paper to shield the second pair of tube emitting diode 2, that is, shield the LED 2, wherein the production debugging tool paper can be 80 grams of printing paper as raw material, and the size is 30*30mm after plastic packaging.

[0035] (5) After the control circuit 4 controls the emission control circuit 1 to turn on, the processing circuit 3 collects the initial output voltage of the second end of the receiving assembly of the second pair of tubes, and the processing circuit 3 sends the initial output voltage of the second end of the receiving assembly of the second pair of tubes to the control circuit 4 after preprocessing.

[0036] (6) The control circuit 4 adjusts the initial output voltage of the second end of the receiving assembly of the second pair of tubes to a preset voltage threshold value by controlling the internal resistance value of the processing circuit 3, and the preset voltage threshold value can be 2V. After the initial output voltage of the second end of the receiving assembly of the second pair of tubes is adjusted to the preset voltage threshold value, the control circuit 4 records the current internal resistance value of the processing circuit 3, which is denoted as SET_AUTO_JSR.

[0037] (7) SET_AUTO_JSR and SET_AUTO_JSZ are used as the basis value of the tube working state after the currency counter is shipped, and the control circuit 4 records and saves both.

[0038] (8) Take out the production debugging tool paper.

[0039] (9) After the control circuit 4 controls the tracking control circuit 2 to turn on, the processing circuit 3 collects the initial output voltage of the second end of the receiving assembly of the first pair of tubes, and the processing circuit 3 sends the initial output voltage of the second end of the receiving assembly of the first pair of tubes to the control circuit 4 after preprocessing.

[0040] (10) The control circuit 4 adjusts the initial output voltage of the second end of the receiving assembly of the first pair of tubes to a preset voltage threshold value by controlling the internal resistance value of the processing circuit 3, and the preset voltage threshold value can be 2V. After the initial output voltage of the second end of the receiving assembly of the first pair of tubes is adjusted to the preset voltage threshold value, the control circuit 4 records the current internal resistance value of the processing circuit 3, which is denoted as AUTO_GZ_JSZ.

[0041] (11) After the control circuit 4 controls the tracking control circuit 2 to turn on, the processing circuit 3 collects the initial output voltage of the second end of the receiving assembly of the second pair of tubes, and the processing circuit 3 sends the initial output voltage of the second end of the receiving assembly of the second pair of tubes to the control circuit 4 after preprocessing.

[0042] (12) The control circuit 4 adjusts the initial output voltage of the second end of the receiving assembly of the second pair of tubes to a preset voltage threshold value by controlling the resistance value inside the processing circuit 3, which can be 2V. After adjusting the initial output voltage of the second end of the receiving assembly of the first pair of tubes to the preset voltage threshold value, the control circuit 4 records the current resistance value inside the processing circuit 3 as AUTO_GZ_JSR.

[0043] (13) AUTO_GZ_JSZ and AUTO_GZ_JSR are the basis values of the tube tracking values after the currency counter is shipped and started each time. The control circuit 4 records and saves both.

[0044] 2. After the currency counter is shipped, the correction coefficient needs to be obtained each time the machine is started. The specific process is as follows:

[0045] (1) Under the condition that the first pair of tubes and the second pair of tubes are not blocked, the control circuit 4 controls the tracking control circuit 2 to be turned on, and then the processing circuit 3 collects the initial output voltage of the second end of the receiving assembly of the first pair of tubes. After preprocessing the initial output voltage of the second end of the receiving assembly of the first pair of tubes, the processing circuit 3 sends it to the control circuit 4.

[0046] (2) The control circuit 4 adjusts the initial output voltage of the second end of the receiving assembly of the first pair of tubes to a preset voltage threshold value by controlling the resistance value inside the processing circuit 3, which can be 2V. After adjusting the initial output voltage of the second end of the receiving assembly of the first pair of tubes to the preset voltage threshold value, the control circuit 4 records the current resistance value inside the processing circuit 3 as GZ_JSZ.

[0047] (3) Under the condition that the first pair of tubes and the second pair of tubes are not blocked, the control circuit 4 controls the tracking control circuit 2 to be turned on, and then the processing circuit 3 collects the initial output voltage of the second end of the receiving assembly of the second pair of tubes. After preprocessing the initial output voltage of the second end of the receiving assembly of the second pair of tubes, the processing circuit 3 sends it to the control circuit 4.

[0048] (4) The control circuit 4 adjusts the initial output voltage of the second end of the receiving assembly of the second pair of tubes to a preset voltage threshold value by controlling the resistance value inside the processing circuit 3, which can be 2V. After adjusting the initial output voltage of the second end of the receiving assembly of the first pair of tubes to the preset voltage threshold value, the control circuit 4 records the current resistance value inside the processing circuit 3 as GZ_JSR.

[0049] (5) The control circuit 4 takes GZ_JSZ / AUTO_GZ_JSZ as the correction coefficient of the first pair of tubes, and takes GZ_JSR / AUTO_GZ_JSR as the correction coefficient of the first pair of tubes.

[0050] 3. At the beginning of normal banknote counting, the resistance value in the processing circuit 3 is corrected by using the correction coefficient.

[0051] (1) Without the first pair of tubes and the second pair of tubes being shielded, the control circuit 4 controls the emission control circuit 1 to be closed, the digital potentiometer negative feedback circuit is set by using SET_AUTO_JSZ, sampling is performed, sampling data is obtained, and the sampling data is multiplied with XZ_JSZ to obtain corrected data, and the data is used to analyze and process each index of the banknote.

[0052] Optionally, in order to avoid excessive current of the tube, a current limiting circuit is needed, wherein the current limiting circuit takes a current limiting resistor as an example, and specifically, R01 and R02 in Figure 2 .

[0053] It should be noted that the emission of the signal and the numerical calculation in the control circuit 4 are mature methods in the prior art, and will not be described here.

[0054] In some optional embodiments, as shown in Figure 3 , the emission control circuit 1 comprises a first resistor R1, a second resistor R2, a third resistor R3, and a first triode Q1.

[0055] As shown in Figure 3 , the emitter of the first triode Q1 is grounded, the collector of the first triode Q1 is connected to the cathode of the emission pair tube assembly LED1 of the first pair of tubes through the first resistor R1, the collector of the first triode Q1 is connected to the cathode of the emission pair tube assembly LED2 of the second pair of tubes through the second resistor R2, and the gate of the first triode Q1 is connected to the first output end of the control circuit 4 through the third resistor R3.

[0056] Specifically, Figure 3 , the current limiting resistors R01 and R02 are added, and in fact, they can be set according to actual needs.

[0057] Specifically, Figure 3 , when the first triode Q1 is closed, the emission control circuit 1 is turned on, the emission pair tube assembly is turned on, and the emission pair tube assembly starts to emit light.

[0058] In some optional embodiments, as shown in Figure 3 , the tracking control circuit 2 comprises a fourth resistor R4 and a second triode Q2.

[0059] As shown in Figure 3 , the emitter of the second triode Q2 is grounded, the collector of the second triode Q2 is connected to the cathode of the emission pair tube assembly LED1 of the first pair of tubes and the cathode of the emission pair tube assembly LED2 of the second pair of tubes, respectively, and the gate of the second triode Q2 is connected to the second output end of the control circuit 4 through the fourth resistor R4.

[0060] Specifically, Figure 3 When the second triode Q2 is closed, the tracking control circuit 2 is turned on, the emitting pair tube assembly is turned on, and the emitting pair tube assembly starts to emit light.

[0061] In some optional embodiments, as Figure 4 shown, the processing circuit 3 comprises: an acquisition circuit 31, a first adjusting circuit 32, a second adjusting circuit 33, and a feedback circuit 34.

[0062] As Figure 4 shown, the first input end and the second input end of the acquisition circuit 31 are respectively connected with the second end of the receiving pair tube assembly D1 of the first pair of tubes and the second end of the receiving pair tube assembly D2 of the second pair of tubes, and the first output end and the second output end of the acquisition circuit 31 are respectively connected with the first input end of the first adjusting circuit 32 and the second input end of the second adjusting circuit 33.

[0063] Optionally, the acquisition circuit 31 comprises a first acquisition unit and a second acquisition unit, wherein the input end of the first acquisition unit is connected with the second end of the receiving pair tube assembly D1 of the first pair of tubes, and the output end of the first acquisition unit is connected with the first input end of the first adjusting circuit 32; the input end of the first acquisition unit is connected with the second end of the receiving pair tube assembly D1 of the first pair of tubes, and the output end of the first acquisition unit is connected with the first input end of the second adjusting circuit 33.

[0064] Specifically, the first acquisition unit acquires the output voltage of the receiving pair tube assembly D1 of the first pair of tubes, and the second acquisition unit acquires the output voltage of the receiving pair tube assembly D2 of the second pair of tubes.

[0065] Specifically, the acquisition circuit 31 comprises Figure 3 R11, R12, R13, R14, IC3, IC4, etc. in

[0066] As Figure 4 shown, the output end of the first adjusting circuit 32 is connected with the first input end of the control circuit 4 and the first input end of the feedback circuit 34. The output end of the second adjusting circuit 33 is connected with the second input end of the control circuit 4 and the second input end of the feedback circuit 34.

[0067] Specifically, the first adjusting circuit 32 and the second adjusting circuit 33 are used for amplifying the input voltage, and under the control of the feedback circuit 34, the output voltage of the first adjusting circuit 32 and the second adjusting circuit 33 is stabilized to a preset voltage threshold.

[0068] As Figure 4As shown, the first output end and the second output end of the feedback circuit 34 are respectively connected to the second input end of the first adjusting circuit 32 and the second input end of the second adjusting circuit 33, and the control end of the feedback circuit 34 is connected to the third output end of the control circuit 4.

[0069] Specifically, in the above first to third steps, whether the first pair of tubes and the second pair of tubes are shielded or not, and whether the emission control circuit 1 is closed or the tracking control circuit 2 is closed, the control circuit 4 adjusts the second end input voltage of the first adjusting circuit 32 and the second end input voltage of the second adjusting circuit 33 by changing the resistance value inside the feedback circuit 34 based on the output voltage of the first adjusting circuit 32 and the output voltage of the second adjusting circuit 33, so that the output voltage of the first adjusting circuit 32 and the second adjusting circuit 33 is stably adjusted to the preset voltage threshold based on continuous dynamic adaptive adjustment.

[0070] In some optional embodiments, as shown in FIG. 4, the first adjusting circuit 32 includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first capacitor C1, and a first operational amplifier A1. Figure 5 As shown in FIG. 5, the first adjusting circuit 32 includes an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a second capacitor C2, and a second operational amplifier A2.

[0071] As shown in FIG. 5, the first adjusting circuit 32 includes an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a second capacitor C2, and a second operational amplifier A2. Figure 5 As shown in FIG. 5, the first adjusting circuit 32 includes an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a second capacitor C2, and a second operational amplifier A2.

[0072] In some optional embodiments, as shown in FIG. 4, the first adjusting circuit 32 includes a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first capacitor C1, and a first operational amplifier A1. Figure 6 As shown in FIG. 5, the first adjusting circuit 32 includes an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a second capacitor C2, and a second operational amplifier A2.

[0073] As shown in FIG. 5, the first adjusting circuit 32 includes an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a second capacitor C2, and a second operational amplifier A2. Figure 5As shown, the non-inverting input terminal of the second operational amplifier A2 is connected with the second output terminal of the collection circuit 31 through the eighth resistor R8, the inverting input terminal of the second operational amplifier A2 is connected with the second output terminal of the feedback circuit 34, the inverting input terminal of the second operational amplifier A2 is also grounded through the ninth resistor R9, the output terminal of the second operational amplifier A2 is connected with the second input terminal of the feedback circuit 34 and the second input terminal of the control circuit 4, the output terminal of the second operational amplifier A2 is also grounded through the tenth resistor R10, the positive supply terminal of the second operational amplifier A2 is connected with the power supply voltage VCC, the positive supply terminal of the second operational amplifier A2 is also grounded through the second capacitor C2, and the negative supply terminal of the second operational amplifier A2 is grounded.

[0074] In some optional embodiments, the feedback circuit 34 comprises a digital potentiometer, wherein the first input terminal and the second input terminal of the digital potentiometer are respectively connected with the output terminal of the first adjustment circuit 32 and the output terminal of the second adjustment circuit 33, the first input terminal and the second input terminal of the digital potentiometer are respectively connected with the second input terminal of the first adjustment circuit 32 and the second input terminal of the second adjustment circuit 33, and the control terminal of the digital potentiometer is connected with the third output terminal of the control circuit 4.

[0075] Optionally, the digital potentiometer adopts a chip of MCP4251 type, and the specific structure is as shown in Figure 7 .

[0076] In some optional embodiments, the control circuit 4 selects a control chip as shown in Figure 8 , and the control chip can achieve that the output voltage of the first adjustment circuit 32 and the output voltage of the second adjustment circuit 33 reach 2V by adjusting the resistance value of the digital potentiometer based on the output voltage of the first adjustment circuit 32 and the output voltage of the second adjustment circuit 33 through SPI control, wherein the adjustment method involved in the control chip is a mature method in the prior art, and will not be described here.

[0077] In the embodiment, a banknote counter is provided, which comprises the self-learning system for the banknote counter pipe according to the above embodiment and any optional embodiment thereof.

[0078] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A self-learning system for a tube of a currency counter, characterized in that, The point counting machine comprises a first pair of tubes and a second pair of tubes, the anode of the transmitting pair of tube components of the first pair of tubes and the anode of the transmitting pair of tube components of the second pair of tubes are connected to a power supply voltage, and the first end of the receiving pair of tube components of the first pair of tubes and the first end of the receiving pair of tube components of the second pair of tubes are connected to the power supply voltage; the system comprises a transmitting control circuit, a tracking control circuit, a processing circuit and a control circuit, wherein, the control end of the transmitting control circuit is connected to the first output end of the control circuit, the first end of the transmitting control circuit is grounded, and the second end of the transmitting control circuit is connected to the cathode of the transmitting pair of tube components of the first pair of tubes and the cathode of the transmitting pair of tube components of the second pair of tubes; the control end of the tracking control circuit is connected to the second output end of the control circuit, the first end of the tracking control circuit is grounded, and the second end of the tracking control circuit is connected to the cathode of the transmitting pair of tube components of the first pair of tubes and the cathode of the transmitting pair of tube components of the second pair of tubes; the first input end and the second input end of the processing circuit are respectively connected to the second end of the receiving pair of tube components of the first pair of tubes and the second end of the receiving pair of tube components of the second pair of tubes, the first output end and the second output end of the processing circuit are respectively connected to the first input end and the second input end of the control circuit, and the control end of the processing circuit is connected to the third output end of the control circuit.

2. The self-learning system for tube adaptation to a currency counter according to claim 1, characterized in that, The transmitting control circuit comprises a first resistor, a second resistor, a third resistor and a first triode, wherein the emitter of the first triode is grounded, the collector of the first triode is connected to the cathode of the transmitting pair of tube components of the first pair of tubes through the first resistor, the collector of the first triode is connected to the cathode of the transmitting pair of tube components of the second pair of tubes through the second resistor, and the gate of the first triode is connected to the first output end of the control circuit through the third resistor.

3. The self-learning system for tube adaptation to a currency counter according to claim 1, characterized in that, The tracking control circuit comprises a fourth resistor and a second triode, wherein the emitter of the second triode is grounded, the collector of the second triode is connected to the cathode of the transmitting pair of tube components of the first pair of tubes and the cathode of the transmitting pair of tube components of the second pair of tubes, and the gate of the second triode is connected to the second output end of the control circuit through the fourth resistor.

4. The self-learning system for tube adaptation to a currency counter according to claim 1, characterized in that, The processing circuit comprises an acquisition circuit, a first adjusting circuit, a second adjusting circuit and a feedback circuit, wherein the first input end and the second input end of the acquisition circuit are respectively connected to the second end of the receiving pair of tube components of the first pair of tubes and the second end of the receiving pair of tube components of the second pair of tubes, the first output end and the second output end of the acquisition circuit are respectively connected to the first input end of the first adjusting circuit and the second input end of the second adjusting circuit; the output end of the first adjusting circuit is connected to the first input end of the control circuit and the first input end of the feedback circuit; the output end of the second adjusting circuit is connected to the second input end of the control circuit and the second input end of the feedback circuit; The first output end and the second output end of the feedback circuit are respectively connected with the second input end of the first adjusting circuit and the second input end of the second adjusting circuit, and the control end of the feedback circuit is connected with the third output end of the control circuit.

5. The self-learning system for tube adaptation to a currency counter according to claim 4, characterized in that, The acquisition circuit comprises a first acquisition unit and a second acquisition unit, wherein, The input end of the first acquisition unit is connected with the second end of the receiving pair tube assembly of the first pair tube, and the output end of the first acquisition unit is connected with the first input end of the first adjusting circuit. The input end of the first acquisition unit is connected with the second end of the receiving pair tube assembly of the first pair tube, and the output end of the first acquisition unit is connected with the first input end of the second adjusting circuit.

6. The self-learning system for tube adaptation to a currency counter according to claim 4, characterized in that, The first adjusting circuit comprises a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor and a first operational amplifier, wherein, The non-inverting input end of the first operational amplifier is connected with the first output end of the acquisition circuit through the fifth resistor, the inverting input end of the first operational amplifier is connected with the first output end of the feedback circuit, the inverting input end of the first operational amplifier is also grounded through the sixth resistor, the output end of the first operational amplifier is connected with the first input end of the feedback circuit and the first input end of the control circuit, the output end of the first operational amplifier is also grounded through the seventh resistor, the positive power supply end of the first operational amplifier is connected with a power supply voltage, the positive power supply end of the first operational amplifier is also grounded through the first capacitor, and the negative power supply end of the first operational amplifier is grounded.

7. The self-learning system for tube adaptation to a currency counter according to claim 4, characterized in that, The first adjusting circuit comprises an eighth resistor, a ninth resistor, a tenth resistor, a second capacitor and a second operational amplifier, wherein, The non-inverting input end of the second operational amplifier is connected with the second output end of the acquisition circuit through the eighth resistor, the inverting input end of the second operational amplifier is connected with the second output end of the feedback circuit, the inverting input end of the second operational amplifier is also grounded through the ninth resistor, the output end of the second operational amplifier is connected with the second input end of the feedback circuit and the second input end of the control circuit, the output end of the second operational amplifier is also grounded through the tenth resistor, the positive power supply end of the second operational amplifier is connected with a power supply voltage, the positive power supply end of the second operational amplifier is also grounded through the second capacitor, and the negative power supply end of the second operational amplifier is grounded.

8. The self-learning system for tube adaptation to a currency counter according to claim 4, characterized in that, The feedback circuit comprises a digital potentiometer, wherein, The first input end and the second input end of the digital potentiometer are respectively connected with the output end of the first adjusting circuit and the output end of the second adjusting circuit, the first input end and the second input end of the digital potentiometer are respectively connected with the second input end of the first adjusting circuit and the second input end of the second adjusting circuit in correspondence, and the control end of the digital potentiometer is connected with the third output end of the control circuit.

9. A currency counter, characterized by The self-learning system for the pair tube of the currency counting machine comprises: The self-learning system for the pair tube of the currency counting machine comprises: The self-learning system for the pair tube of the currency counting machine comprises:

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