CN2173971Y

CN2173971Y - Automatic paper money discriminator for paper money counter with dust-collector

Info

Publication number: CN2173971Y
Application number: CN93210973U
Authority: CN
Inventors: 梁允殷
Original assignee: Xinri Computer & Electric Appliances Service Dep Yuexiu District Guangzhou Ci
Current assignee: Xinri Computer & Electric Appliances Service Dep Yuexiu District Guangzhou Ci
Priority date: 1993-04-27
Filing date: 1993-04-27
Publication date: 1994-08-10
Anticipated expiration: 2003-04-27

Abstract

The utility model relates to an automatic paper money discriminator for a paper money counter with a dust-collector, which is composed of a photoelectric conversion circuit with a complementary filter, a sensitivity indicating circuit, a voltage comparison circuit, an acoustic-optical alarm and shutdown circuit, a purple light source circuit, a power circuit, a dust collector, etc. By adopting the photoelectric conversion circuit with the complementary filter, the utility model distinguishes not only the reflecting frequency of the true and counterfeit paper money but not the reflecting strength, so the difference value which is output in a positive or a negative way can be produced. The alarm and the shutdown circuit is driven by the comparison circuit. The utility model for new true paper money and old counterfeit paper money is not easy to send a false alarm. The automatic paper money discriminator for a paper money counter with a dust-collector has strong optical interference immunity. The paper money discrimination and the dust suction can be carried out simultaneously, the discrimination accuracy to the counterfeit paper money is increased, and the health of operators is protected.

Description

Automatic paper money discriminator for paper money counter with dust-collector

The utility model relates to a kind of paper money discriminator, the automatic paper money discriminator of particularly a kind of paper money counter with dust sucking plant.

At present, all paper money discriminators all are relatively to distinguish the true from the false according to the power and the reference value of banknote to the purple light reaction.Therefore this class paper money discriminator is judged by accident easily to reflective stronger new real banknote and reflective more weak outmoded counterfeit money, need use a large amount of ancillary methods simultaneously, as pitch-dark body, significantly blocks the interference that reduces environment.In addition, existing paper money counter does not all have dust sucking plant, and this not only diminishes operating personnel's health, and also will often clean.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part and provides a kind of employing complementary filter opto-electronic conversion, to the automatic paper money discriminator of paper money counter of new real banknote and the difficult band dust sucking plant of reporting by mistake of old counterfeit money.

The purpose of this utility model can reach by following measure: the utility model comprises voltage comparator circuit, sound and light alarm and halt circuit, violet source circuit, power circuit, paper money counter housing; be characterised in that: in addition with photoelectric switching circuit, sensitivity indicating circuit, the suction cleaner of complementary filter; deliver to sound and light alarm and halt circuit 4 by voltage comparator circuit after relatively with the detected signal of the photoelectric switching circuit of complementary filter; sensitivity indicating circuit 2 joins with the input end of voltage comparator circuit, and suction cleaner is contained near paper money counter and goes out the paper money place.

The purpose of this utility model can also reach by following measure: it is characterized in that: whole paper money discriminator is contained in the top of paper money counter housing, purple light pipe TB places between paper money wheel and the money out wheel, purple light pipe next door is to survey camera lens, and the photoresistance with complementary filter is housed in the camera lens.The normal phase input end of integrated circuit (IC) 3 joins in photoresistance RA in the complementary filter and the voltage comparator circuit, and join by the inverting input of integrated circuit (IC) 2 in potentiometer W2 and the sensitivity indicating circuit, the inverting input of IC2 joins by the normal phase input end of resistance R 4 with integrated circuit (IC) 1, photoresistance RB joins with the inverting input of IC3, IC1 and the normal phase input end of IC2 respectively, the output of IC1, IC2 is joined with light emitting diode D1, D2 respectively, and the output terminal of IC3 joins by the grid of resistance R 8 with controlled CR.

Fig. 1 is a functional-block diagram of the present utility model;

Fig. 2 is the installation site figure of the utility model on paper money counter;

Fig. 3 is an electrical schematic diagram of the present utility model.

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

With reference to Fig. 1, Fig. 2, the utility model is by forming with photoelectric switching circuit 1, sensitivity indicating circuit 2, voltage comparator circuit 3, sound and light alarm and the halt circuit 4 of complementary filter, violet source circuit 5, power circuit 6, paper money counter housing 7, suction cleaner 8 etc.

Among Fig. 2, whole paper money discriminator is installed in the top of paper money counter housing 7 by the support plate with interception, and suction cleaner 8 is loaded on the paper money counter place near cash dispensing port.Purple light pipe TB places between paper money wheel 9 and the money out wheel 10, and banknote 12 passes through below one by one.Purple light pipe next door is to survey camera lens 11, and the photoresistance with complementary filter is housed in the camera lens.

With reference to Fig. 3, form the violet source circuit by triode TR and high-frequency transformer T1 etc., vibration produces high-frequency and high-voltage and lights purple light pipe TB.When genuine notes passed through, its reflected light entered probe, because the effect of photoresistance RA, RB in the complementary filter makes VRA ∠ VRB, (+) terminal voltage of comparer IC3 is lower than (-) terminal voltage like this, and this is than the device no-output, and genuine notes pass through paper money discriminator smoothly.When counterfeit money arrives, VRA＞VRB, at this moment (+) terminal voltage of comparer IC3 is higher than (-) terminal voltage, and comparer output high level triggers controllable silicon CR, and the dynamo-electric source of counting is cut off in the relay J adhesive, makes electric paper money machine out of service.Can take counterfeit money this moment away, presses K1 turn off thyristor CR again, replys normal condition.The effect of W1 is the balance of voltage when adjusting zero load, makes IC3 be output as zero.Form interruption sound generation circuit by G1～G6, when the relay adhesive, connect its power supply, produce and be interrupted acoustic alarm signal.Form double-limit comparator (constituting the degree indicating circuit of TC) than device IC1, IC2 and R3, R4, W2 thus, monitor the difference of VRA, VRB, and reflect by red, green pilot lamp D1, D2 respectively with light emitting diode D1, D2.When VRB-VRA＞C1(C1 is the upper limit) time, red light does not work, and green light is bright; When VRB-VRA＜C2(C2 is a lower limit) time, red light is bright, green light does not work.Suitably select R3, R4, regulate value that W2 makes VRA-VRB between C1 and C2 the time, red, green light is simultaneously bright.But operator's nationality recording sensitivity like this selects that traffic lights are simultaneously bright to be the moderate position of sensitivity, otherwise sensitivity is too high or too low, therefore plays the effect of sensitivity indication.

The utility model has following advantage compared to existing technology:

1. band dust exhaust apparatus distinguishes that the paper money dust suction carries out simultaneously, improves the discrimination accuracy; Can protect simultaneously operating personnel's health, and prolongation is swept the dirt cycle greatly.

2. adopt complementary filter opto-electronic conversion, reflective frequency rather than the intensity of difference true and false paper money are so be not easy wrong report to new real banknote and old counterfeit money; The light strong interference immunity, easy for installation.

3. the sensitivity pilot lamp is arranged, and wide accommodation uses reliable and stable.

Claims

1, the automatic paper money discriminator of a kind of paper money counter with dust sucking plant; comprise voltage comparator circuit 3, sound and light alarm and halt circuit 4, violet source circuit 5, power circuit 6, paper money counter housing 7; it is characterized in that: in addition with photoelectric switching circuit 1, sensitivity indicating circuit 2, the suction cleaner 8 of complementary filter; deliver to sound and light alarm and halt circuit 4 by voltage comparator circuit 3 after relatively with the photoelectric switching circuit 1 detected signal of complementary filter; sensitivity indicating circuit 2 joins with the input end of voltage comparator circuit 3, and suction cleaner 8 is contained near paper money counter and goes out the paper money place.

2, paper money discriminator according to claim 1, it is characterized in that: whole paper money discriminator is contained in the top of paper money counter housing 7, purple light pipe TB places between paper money wheel 9 and the money out wheel 10, and purple light pipe next door is to survey camera lens 11, and the photoresistance with complementary filter is housed in the camera lens.

3, paper money discriminator according to claim 1, it is characterized in that: the normal phase input end of integrated circuit (IC) 3 joins in photoresistance RA in the complementary filter and the voltage comparator circuit 3, and join by the inverting input of integrated circuit (IC) 2 in potentiometer W2 and the sensitivity indicating circuit 2, the inverting input of IC2 joins by the normal phase input end of resistance R 4 with integrated circuit (IC) 1, photoresistance RB respectively with IC3, the inverting input of IC1 and the normal phase input end of IC2 join, IC1, the output of IC2 respectively with light emitting diode D1, D2 joins, and the output terminal of IC3 joins by the grid of resistance R 8 with controllable silicon CR.