JP2006250869A5 - - Google Patents

Description

Media processing device

  The present invention relates to an apparatus for processing a medium taken from the outside and having a function of detecting deterioration of the rigidity of the medium.

  FIG. 6 is an external view showing an external appearance of an automatic teller machine 1 which is one of typical media processing apparatuses used conventionally. FIG. 7 shows the configuration of the main devices mounted on the automatic teller machine 1.

  The automatic teller machine 1 accepts banknotes from the customer service port at the front of the apparatus when making a transaction with the customer, and after a predetermined transaction, the banknote depositing / withdrawing unit 2 for performing depositing / withdrawing processing to dispense money as necessary. A card read printer unit 3 that accepts a magnetic card possessed, reads and rewrites information stored in the card, and a passbook printer that accepts a customer's passbook and prints the contents and amount of money traded in the passbook 4 includes a customer operation display unit 5 that displays various information on the display screen to give guidance, operation instructions, etc. to the customer. Each of these parts is controlled by the main control part 6 mounted in the automatic teller machine 1.

  In actual transactions, when a customer stands in front of the device, the presence of the customer is detected by a sensor (not shown) provided in front of the device, and the main control unit 6 displays a service screen on the customer operation display unit 5 based on the detection signal. Send instructions for displaying. Various service screens are displayed on the customer operation display unit 5 to guide the processing of the procedure desired by the customer. If the customer wishes to make a transaction involving deposit of banknotes, the customer inputs information such as the amount and PIN, and then opens the customer entrance of the banknote deposit / withdrawal unit 2 to accept the deposit, and the customer Deposit.

  A plurality of banknotes that are put in from a customer service port at a time are separated one by one at a stage of being sent out from the service port to a transport path provided inside the apparatus. Each time one sheet is conveyed, the denomination is determined, and the denominations provided in the banknote deposit / withdrawal unit 2 are stored in the banknote storage.

After that, the banknotes stored in the banknote storage are taken out of the banknotes stored as necessary according to the customer's request input via the operation unit of the device, and then transported to the customer service port for the amount requested by the customer. Return banknotes.
JP 2002-197507 A

  In the automatic teller machine 1 described above, the taken banknotes are transported one by one on the transport path. However, if the rigidity of the banknotes to be handled is deteriorated, the banknotes may be jammed. In order to prevent such obstacles, the reliability of the device can be improved by quickly identifying the bill with deteriorated rigidity every time it is taken into the device, and holding such bills in the device so that they are not reused. This is also beneficial from the perspective of improving customer service.

  For this reason, some devices that handle a large amount of media such as an automatic teller machine have a function of discriminating the paper quality and pain level of the media. However, in the conventional general medium discrimination function, discrimination is performed by image processing of the image of the banknote, and fine features derived from the weakness of the banknote such as “distortion” and “wrinkle” of the banknote are detected. Since it is difficult to do so, it is difficult to accurately distinguish between a banknote with deteriorated rigidity and a normal banknote. Therefore, development of a medium processing apparatus that can accurately discriminate between a banknote with deteriorated rigidity and a normal banknote is awaited.

  In order to solve the above-mentioned problems, the automatic teller machine according to the present invention is characterized by comprising means for discriminating bills using ultrasonic waves. The banknote discriminating means has an ultrasonic wave transmitting section consisting of an ultrasonic wave transmitting element and an ultrasonic wave receiving section consisting of an ultrasonic wave receiving element on or near the conveyance path, and after the banknote is conveyed between both elements The ultrasonic wave is transmitted from the ultrasonic wave transmitter to the surface of the banknote, and the secondary wave generated from the banknote is received by the ultrasonic wave receiver to determine the deterioration of the rigidity of the banknote. Yes.

  With the configuration described above, it is possible to reliably discriminate the banknote with deteriorated rigidity, and store the banknote with deteriorated rigidity in the reject box so that the banknote with deteriorated rigidity does not flow back into the apparatus again. Thus, it is possible to prevent clogging of the medium and to return a defective banknote with deteriorated rigidity to the customer, thereby improving customer service.

  Examples 1 and 2 which are the best modes for carrying out the present invention will be described in order below.

  Embodiment 1 of the present invention will be described below. In the invention of the first embodiment, an ultrasonic wave is radiated from the ultrasonic wave transmitting means to the banknote deposited and conveyed to the automatic teller machine 1 to generate resonance, and the secondary radiation wave generated by the resonance is received by the ultrasonic wave receiving means. The natural frequency of the banknote is calculated from the detected value, and the natural frequency is compared with the natural frequency of a normal banknote to determine whether the rigidity of the banknote has deteriorated.

(Constitution)
FIG. 1 is a configuration diagram of the bill discriminating unit 7 of the first embodiment. The banknote discriminating unit 7 is installed on the conveyance path B of the automatic teller machine 1. The banknote discriminating unit 7 is conveyed from the ultrasonic wave transmission sensor 9 that irradiates the banknote A with the ultrasonic wave C and the ultrasonic wave reception sensor 10 that receives the secondary radiation wave D from the banknote, the ultrasonic wave transmission sensor 9, and the ultrasonic wave reception sensor 10. A sensor 11 for detecting the presence of a banknote upstream of the path B, a drive circuit 12 for generating a drive signal for the ultrasonic transmission sensor 9, an amplifier 13 for amplifying an output signal from the ultrasonic reception sensor 10, and a secondary generated by the banknote A sampling circuit 14 for sampling information necessary for automatically analyzing the frequency of the radiation wave, a natural frequency calculation unit 15 for calculating the natural frequency of the banknote based on the analysis result of the frequency in the sampling circuit 14, and the banknote Reference natural frequency storage unit 16 comprising a memory for storing in advance the natural frequency of a normal banknote, which is a reference value for discriminating the state of the normal banknote, and the amplitude information of a normal banknote is stored in advance. Consisting reference amplitude storage unit 17 being. These configurations are controlled by the banknote discrimination control unit 8.

  The ultrasonic transmission sensor 9 and the ultrasonic reception sensor 10 are attached so as to face each other with the banknote A on the transport path B as a boundary. Various methods can be employed for attaching the ultrasonic transmission sensor 9 and the ultrasonic reception sensor 10 at this time. For example, a hole is formed in a metal plate that forms the upper and lower portions of the conveyance path B, and A method of embedding the sound wave transmission sensor 9 and the ultrasonic wave reception sensor 10 can be considered.

(Operation)
Hereinafter, an operation flow of the first embodiment of the present invention will be described with reference to FIG. Note that FIG. 3 is an operation flowchart of the first embodiment, and the following steps S1 to S12 correspond to the display of the flowchart of FIG.

When making a transaction in the automatic teller machine 1 when the customer visits the store, a transaction menu is displayed on the customer operation display unit 5 . As the contents of the menu, for example, items related to customer transactions such as payment, payment, balance inquiry, bankbook entry, and transfer are displayed by various keys. The customer sees this transaction menu and selects the desired transaction key by pressing it down.

  Here, when the customer selects payment, the customer operation display unit 5 displays a screen prompting insertion of the card and passbook possessed by the customer, and at the same time, the customer inserts the card into the card read printer unit 3 accordingly. Alternatively, when the passbook is inserted into the passbook printer 4, information such as a customer password stored in the card or passbook is read and stored in a predetermined memory (not shown).

Subsequently, a screen is displayed on the customer operation display unit 5 to prompt the customer to enter a personal identification number. When the customer presses the numeric keypad displayed on the screen and enters a personal identification number, if the entered personal identification number and the personal identification number stored in the memory match, and the two match, the customer operation display unit 5 after displaying the possible, the banknote depositing and dispensing unit 2 instructs the preparation of payment along with displaying a screen prompting insertion of the bill.

Subsequently, the customer inserts the banknote into the customer service port of the banknote deposit / withdrawal unit 2. The inserted banknotes are conveyed one by one and reach the banknote discriminating unit 7. When the bill A approaches the vicinity of the bill discriminating unit 7, the sensor 11 detects the leading edge of the bill A and simultaneously transmits a bill detection signal notifying that the bill has been detected to the bill discriminating control unit 8 (S1). When the banknote discrimination control unit 8 receives the banknote detection signal transmitted from the sensor 11 to be detected , the banknote discrimination control unit 8 is shown in FIG. The rectangular wave period initial value T1 and voltage value V1 are read out and given to the drive circuit 12 together with an instruction for generating a drive signal. The drive circuit 12 generates a drive signal in accordance with the instruction of the banknote discrimination control unit 8 and generates ultrasonic waves. This is given to the transmission sensor 9.

  When the leading edge of the banknote A is detected by the sensor 11, a signal indicating that the banknote A has been detected is sent to the banknote discrimination control unit 8, and a predetermined movement is made until the center of the banknote A comes directly below the ultrasonic transmission sensor 9. Transport only the amount. (S2) When it is detected by a sensor (not shown) that the banknote A exists immediately below the ultrasonic wave transmission sensor 9, a signal that the banknote A is detected is sent to the banknote discrimination control unit 8, and the banknote discrimination control is performed. The ultrasonic transmission sensor 9 generates an ultrasonic wave C having an initial period T1 and irradiates the banknote A according to a command from the unit 8 (S3). The bill A receives the ultrasonic wave C from the ultrasonic wave transmission sensor 9 and causes a forced vibration with a period T. At the same time, a secondary radiation wave D having a period T is generated from the banknote surface on the ultrasonic receiving sensor 10 side.

  The ultrasonic receiving sensor 10 receives this secondary radiation wave D (S4), outputs an electric signal and gives it to the amplifier 13, and the amplifier 13 amplifies this electric signal and gives it to the sampling circuit 14. Next, the sampling circuit 14 samples the amplitude information by the amplified electric signal and transfers it to the banknote discrimination control unit 8. Next, the banknote discrimination | determination control part 8 preserve | saves this amplitude information in a predetermined memory (S5).

The banknote discriminating unit 7 takes out the maximum amplitude value of the banknote at the time of resonance stored in the memory in advance from the reference amplitude storage unit 17 and compares it with the maximum amplitude value of the banknote obtained at the time of measurement (S6). When the maximum value of the measured banknote amplitude is smaller than the maximum value of the resonant banknote amplitude read from the reference natural frequency storage unit 16 , it is determined that the banknote vibration is not in a resonance state, and the banknote discrimination control unit 8 performs recognition control. The value of the cycle T1 of the unit drive signal is changed (S7), and an instruction is given to the drive circuit 12 again.

  When the maximum value of the measured amplitude is larger than the maximum value of the amplitude at the time of resonance, it is determined that the vibration of the banknote is in a resonance state, and the natural frequency calculation unit 15 uses the current value of the cycle T1 of the drive signal. Calculate the frequency of resonance. The frequency of this resonance is the natural frequency of the bill (S8). Subsequently, the banknote discrimination control unit 8 reads the reference natural frequency of the normal banknote stored in advance from the reference natural frequency storage unit 16 (S9), and compares it with the calculated natural frequency of the banknote (S10). .

  When the calculated natural frequency is larger than the reference natural frequency, the banknote is judged to have deteriorated rigidity, and the banknote is accumulated in the primary storage unit provided in the banknote deposit / withdrawal unit 2 and then rejected. (S11). In addition, when the calculated natural frequency is equal to or smaller than the reference natural frequency, the banknote A is transferred to the temporary storage unit by the banknote deposit / withdrawal unit 2 and temporarily stored, and then reusable normal banknotes. Is stored in the bill storage (S12).

  When all of the banknotes inserted by the customer have been determined, the total amount is calculated for the banknotes determined to be normal, and the amount is displayed on the customer operation display unit 5 to notify the customer. When the customer confirms the displayed amount, and the customer indicates that the amount has been confirmed, the deposit process is completed.

(Constitution)
Next, a second embodiment of the present invention will be described. In the present embodiment, a single wave pulse signal as shown in FIG. 5 is used as a drive signal for the ultrasonic transmission sensor 9, so that the ultrasonic wave generates free vibration on the banknote from the transmission ultrasonic sensor, and the banknote is unique. The frequency is analyzed.

(Constitution)
The configuration of the second embodiment is substantially the same as the configuration of the first embodiment shown in FIG. 1, and the bill discriminating unit 7 is installed on the transport path of the automatic teller machine 1, and includes an ultrasonic transmission sensor 9 and an ultrasonic reception sensor. 10, sensor 11, drive circuit 12, amplifier 13, sampling circuit 14, natural frequency calculation unit 15, and reference natural frequency storage unit 16. In the present embodiment, the reference amplitude storage unit 17 of the first embodiment is not used. The above-described configuration is controlled by the banknote discrimination control unit 8. FIG. 5 shows the drive signal of the transmission ultrasonic sensor of the second embodiment, where T2 represents the effective action time of a single wave pulse and V2 represents the intensity of the pulse.

(Operation)
FIG. 4 is an operation flowchart of the second embodiment. In addition, the flow of conveyance from the customer's deposit of the present embodiment to the banknote discriminating unit 7 is exactly the same as that of the above-described first embodiment. After entering the number, etc., in the case of deposit processing, the banknotes held at the customer service are deposited. Hereinafter, the operation after the deposited banknote reaches the position where the banknote discriminating unit is located will be described.

When the customer inputs predetermined information, the customer puts the banknotes possessed into the customer service port of the banknote depositing and dispensing unit 4. Thereafter, the inserted banknotes are separated and conveyed one by one. When the banknote A passes through the banknote discriminating unit 7, when the tip of the banknote A is detected by the sensor 11, the banknote discrimination control unit 8 An instruction for generating a single wave pulse having an effective action time T 2 and an intensity V 2 is given to 12, and the drive circuit 12 receives this instruction to create this single wave pulse and gives it to the ultrasonic transmission sensor 9. When the bill A is conveyed directly below the ultrasonic transmission sensor 9 (S22), the ultrasonic transmission sensor 9 receives this single wave pulse, generates an ultrasonic wave, and irradiates the bill (S23). The bill receives this ultrasonic wave to cause free vibration to generate secondary radiation D. Next, the ultrasonic receiving sensor 10 receives the secondary radiation wave D (S24), outputs an electric signal and gives it to the amplifier 13, and the amplifier 13 amplifies this electric signal and gives it to the sampling circuit 14. Next, the sampling circuit 14 samples amplitude and frequency information from the amplified electrical signal and transfers the information to the banknote discrimination control unit 8. Next, the banknote discrimination | determination control part 8 preserve | saves this amplitude and frequency information in predetermined memory which is not illustrated. The bill discriminating unit 7 reads the frequency information stored in the memory, detects the free frequency of the bill (S25), and the natural frequency calculating unit 15 calculates the natural frequency from the detected free frequency. (S26).

Subsequently, the bill discriminating control unit 8 reads out the reference natural frequency of the normal banknote stored in advance from the reference natural frequency storage unit 16 (S27) and compares it with the natural frequency calculated by the determination of the bill A (S28). ). If the calculated natural frequency is larger than the reference natural frequency, it is determined that the banknote has deteriorated rigidity, and the banknote is accumulated in the temporary storage unit provided in the banknote deposit / withdrawal unit 2 and then rejected. (S29). If the calculated natural frequency is equal to or smaller than the reference natural frequency, the banknote A is transferred to the temporary storage unit by the banknote depositing / dispensing unit 2 and temporarily stored, and then reusable normal banknotes. Is stored in the bill storage (S30).

  When all of the banknotes inserted by the customer have been determined, the total amount is calculated for the banknotes determined to be normal, and the amount is displayed on the customer operation display unit 5 to notify the customer. When the customer confirms the displayed amount, and the customer indicates that the amount has been confirmed, the deposit process is completed.

It is a block diagram of the banknote discrimination | determination part of Example 1 of this invention. It is a drive signal of Example 1 of this invention. It is a flowchart figure of operation | movement of Example 1 of this invention. It is a flowchart figure of operation | movement of Example 2 of this invention. It is a drive signal of Example 2 of this invention. It is an external view of an automatic teller machine. It is a block diagram of the conventional automatic teller machine .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cash automatic transaction apparatus 2 Banknote depositing / withdrawing part 3 Card lead printer part 4 Passbook printer part 5 Customer operation display part 6 Main control part 7 Banknote discrimination | determination part 8 Banknote discrimination | determination control part 9 Ultrasonic transmission sensor 10 Ultrasonic reception sensor 11 Sensor 12 Drive circuit 13 Amplifier 14 Sampling circuit 15 Natural frequency calculator 16 Reference natural frequency storage 17 Reference amplitude storage A Banknote

B Conveyance path C Ultrasonic wave D Secondary radiation wave

Claims (3)

In a media processing apparatus that captures and processes media,
Ultrasonic transmission means for irradiating the medium with ultrasonic waves;
Ultrasonic receiving means for receiving radiation from the medium;
Natural frequency detection means for detecting the natural frequency of the medium from the received radiation wave;
A medium processing apparatus comprising: a determination unit configured to determine deterioration of the medium based on a natural frequency when the medium resonates. In a media processing apparatus that captures and processes media,
Ultrasonic transmission means for irradiating the medium with ultrasonic waves;
Ultrasonic receiving means for receiving radiation from the medium;
It is characterized in that there is provided a discriminating means for obtaining a natural frequency by irradiating the medium with ultrasonic waves from the ultrasonic wave transmitting means and generating free vibration, and discriminating deterioration of the medium based on the natural frequency. Media processing device. A natural frequency storage means for storing in advance a threshold value of the natural frequency of a normal medium;
It is determined whether the rigidity of the medium is deteriorated by comparing the obtained natural frequency of the medium with the natural frequency stored in the natural frequency storage means by irradiation with ultrasonic waves. The medium processing apparatus according to claim 1 or 2. A natural frequency storage means for storing in advance a threshold value of the natural frequency of a normal medium;
The deterioration of the medium is discriminated by comparing the obtained natural frequency of the medium with the natural frequency stored in the natural frequency storage means by irradiation of ultrasonic waves. 3. The medium processing apparatus according to 1 or 2 .