JP6417264B2 - Card insertion / discharge unit, card processing apparatus and automatic transaction apparatus - Google Patents

Description

  The present invention relates to a card insertion / discharge port unit, a card processing device, and an automatic transaction device, and is particularly suitable for application to a card insertion / discharge port unit, a card processing device, and an automatic transaction device provided with a magnetic field generator and an IC contact detection sensor. Is.

  2. Description of the Related Art A transaction processing device such as an ATM (automatic cash deposit machine) is equipped with a card processing device that processes information on a magnetic card or an IC card. This card processing device takes a magnetic card or IC card inserted from the card insertion / ejection slot into the main body, reads the magnetic information recorded on the magnetic stripe of the magnetic card with a magnetic head, or puts it on the IC chip of the IC card. Read the recorded information. After the transaction is completed, the magnetic card or IC card is discharged from the main body to the card insertion / discharge port.

  In ATM, there is a crime called skimming in which a fraudulent device equipped with a fake card insertion / extraction port equipped with a magnetic head is placed over a regular card insertion / extraction port and the magnetic information of the magnetic card is illegally acquired. As a countermeasure for preventing skimming, for example, there is a technique in which a magnetic field is generated in the vicinity of a regular card insertion / ejection slot by a magnetic field generation unit to prevent magnetic information of a magnetic card from being read by a magnetic head of an unauthorized device (for example, a patent) References 1 and 2).

  The magnetic field generator described in Patent Documents 1 and 2 includes a coil and a loop antenna, and is installed in a main body front portion of the card processing apparatus or a card insertion slot unit installed in the front portion. A control unit for controlling the driving of the magnetic field generation unit is installed in the main body.

  Recently, an IC card having higher security than a magnetic card has been used. Therefore, there is a card processing device having a function of detecting whether an inserted card is an IC card (for example, Patent Document 3). . Specifically, an IC contact detection sensor is provided in the card insertion / ejection port unit of the card processing device to detect whether or not the card has an IC contact. Conventionally, a proximity switch using electromagnetic induction is often used for an IC contact detection sensor.

JP 2001-67524 A JP 2005-266999 A JP 2011-192182 A

  However, if the skimming prevention device described in Patent Documents 1 and 2 and the IC contact detection function described in Patent Document 3 are simultaneously installed in the card insertion / extraction port of the card processing device, a disturbing magnetic field, which is a countermeasure against skimming, is provided. Affects the IC contact detection sensor of the card insertion / discharge port unit, and there is a problem that the IC contact cannot be detected correctly.

  The present invention has been made in consideration of the above points, and a card insertion / ejection port unit and card processing for preventing illegal reading of magnetic information of a magnetic card and maintaining the performance of an IC contact detection sensor so as not to deteriorate. A device and an automatic transaction device are provided.

In order to solve such a problem, in the present invention, an opening for inserting and ejecting a card, a magnetic field generator for generating a disturbing magnetic field, an IC contact detection sensor for detecting the presence or absence of an IC contact, a magnetic field generator and an IC contact and a control unit for controlling the operation of the detection sensor, the control unit, when the card from the opening is inserted in the card insertion waiting state, and when generating an interference magnetic field in a predetermined value or less by the magnetic field generating unit, IC contact braking Gosuru card insertion outlet unit as the timing to detect the presence or absence of the IC contact is synchronized, the card processing apparatus and an automatic teller machine is provided by the detection sensor.

  According to the present invention, it is possible to detect whether an IC card having an IC contact is inserted without degrading the performance of the IC contact detection sensor while preventing unauthorized reading of magnetic information on the magnetic card.

It is a block diagram of a card processing apparatus. It is a schematic structure figure of a card processing device. It is a separated view of the main body of a card processing apparatus and a card insertion discharge port unit. It is a conceptual diagram which shows the relationship between an IC contact detection signal and a disturbance magnetic field. It is another conceptual diagram which shows the relationship between an IC contact detection signal and a magnetic field direction. It is explanatory drawing of the oscillation frequency of an IC contact detection signal and a disturbance magnetic field. It is a top view of the insertion discharge port of a card processing apparatus. It is a sequence diagram which shows the output timing of an interference wave and an IC contact detection signal.

(1) Configuration of Card Processing Device First, the configuration of the card processing device 100 according to the present embodiment will be described with reference to FIG. 1 and FIG.

  The card processing apparatus 100 is mounted on, for example, an ATM installed in a financial institution. The card processing apparatus 100 includes a card reader that accepts a magnetic card or IC card owned by a customer and reads magnetic information recorded on the magnetic card or information stored in the IC card.

  As shown in FIG. 1, the card processing apparatus 100 includes a main body 1 and a card insertion / discharge port unit 10. The main body 1 includes a control unit 2, a storage unit 3, a magnetic reading unit 4, a card transport unit 5, a card position detection sensor 6, a host interface 7, a card insertion detection sensor 8, a shutter drive unit 9, and an IC card communication unit 20. Including. The card insertion / discharge port unit 10 includes a magnetic field control unit 13, a magnetic field generation unit 11 including a loop antenna 12, an IC contact detection control unit 21, and an IC contact detection sensor 22.

  Inside the main body 1, a control unit 2, a storage unit 3, a magnetic reading unit 4, a card transport unit 5, a card position detection sensor 6, a host interface 7 and an IC card communication unit 20 are provided. Are provided with a card insertion detection sensor 8 and a shutter drive unit 9.

  The control unit 2 is composed of a microcomputer, and comprehensively controls the operation of each unit. The memory | storage part 3 is comprised from memory and has memorize | stored various information. As shown in FIG. 2, the magnetic reading unit 4 includes a magnetic head 4a and a circuit (not shown) for processing signals from the magnetic head 4a. The magnetic reading unit 4 reads magnetic information from the magnetic stripe of the card 200 by the magnetic head 4 a in the main body 1.

  As shown in FIG. 2, the card transport unit 5 includes a plurality of rollers 5a and a motor and a circuit (not shown) for rotating the rollers 5a. The card transport unit 5 sandwiches the card 200 between the rollers 5a in the main body 1 and rotates the roller 5a with the driving force of the motor to transport the card 200 back and forth.

  As shown in FIG. 2, the card position detection sensor 6 includes a plurality of optical sensors 6a. The control unit 2 detects the position of the card 200 in the main body 1 based on the output state of each card position detection sensor 6. The host interface 7 is composed of a circuit that transmits and receives information to and from the ATM.

  As shown in FIG. 2, the card insertion detection sensor 8 includes a microswitch 8a and a small magnetic head 8b. The controller 2 detects the insertion of the card 200 into the card insertion / discharge port unit 10 based on the output state of the card insertion detection sensor 8. As shown in FIG. 2, the shutter drive unit 9 includes a solenoid and a circuit (not shown) for opening and closing the shutter 9a. Note that 8a may be a light detection element typified by a photo interrupter.

  As shown in FIG. 2, the IC card communication unit 20 includes an IC contact unit 20a. The IC card communication unit 20 communicates with the IC card using the IC contact unit 20a. Specifically, the IC card communication unit 20 reads information recorded on the IC chip of the inserted IC card and provides the information to the control unit 2.

  Next, details of the card insertion / discharge port unit 10 will be described. The magnetic field generator 11 includes a loop antenna 12 and a circuit (not shown) for driving the loop antenna 12. The magnetic field generator 11 generates a disturbing wave by causing a current to flow through the loop antenna 12 and radiates a disturbing magnetic field from the loop antenna 12.

  The magnetic field controller 13 is composed of a microcomputer. The magnetic field controller 13 controls the generation and stop of the disturbing magnetic field from the loop antenna 12 of the magnetic field generator 11.

  The IC contact detection sensor 22 detects the presence or absence of an IC contact, and detects whether or not the inserted card 200 is an IC card, that is, whether or not it is a card having an IC contact. The IC contact detection control unit 21 determines whether the inserted card 200 is an IC card based on the output of the IC contact detection sensor 22, and provides the determination result to the control unit 2 of the main body 1. To do.

  As shown in FIG. 2, in the card insertion / discharge port unit 10, the IC contact detection control unit 21 and the IC contact detection sensor 22 are arranged in an approaching state and connected by the shortest wiring path. As a result, generation of unnecessary parasitic circuits due to long wiring paths can be reduced.

  As described above, the card insertion / discharge port unit 10 is mounted on the main body 1 of the card processing apparatus 100, and the magnetic field generation unit 11 generates a disturbing magnetic field, thereby illegally reading (skimming) the magnetic information of the card 200 by the unauthorized apparatus. ) Can be prevented. Further, the IC contact detection sensor 22 can detect whether or not the inserted card 200 is an IC card, that is, whether or not the card 200 has an IC contact.

(2) Structure of Card Insertion / Discharge Port Unit Next, the structure of the card insertion / discharge port unit 10 according to the present embodiment will be described with reference to FIG. In the description of the structure of the card insertion / discharge port unit 10, FIGS. 1 and 2 are appropriately referred to.

  As shown in FIG. 3, a card entry / exit portion 1 a and a shutter drive portion 9 are provided on the front surface 1 f of the main body 1 of the card processing apparatus 100. The card entry / exit portion 1a protrudes forward (T direction in FIG. 3), and an entry / exit 1b is formed at the center. The entrance / exit 1 b communicates with the inside of the main body 1. The card 200 enters / exits the main body 1 through the entrance / exit 1b.

  A micro switch 8a and a small magnetic head 8b are provided on the convex portion 1e at the tip of the card insertion / exit portion 1a. The actuator 8c of the micro switch 8a protrudes into the inlet / outlet 1b from the left side of the card inlet / outlet portion 1a. When the side edge of the card 200 inserted into the inlet / outlet 1b contacts the actuator 8c, the microswitch 8a is turned on, and it is detected that the card 200 having a predetermined width is inserted.

  The small magnetic head 8b protrudes into the inlet / outlet 1b from below the card inlet / outlet portion 1a. By detecting the magnetic stripe of the card 200 inserted in the entrance / exit 1b, the small magnetic head 8b detects that the card 200 on which magnetic information is recorded is inserted. The small magnetic head 8b may be affected by the disturbing magnetic field of the loop antenna 12. However, the magnetic information may be detected at a predetermined level even if the magnetic information on the card 200 cannot be read accurately. For this reason, there is no problem in detection performance due to the influence of the disturbing magnetic field.

  The shutter mechanism 9b is operated by the driving force of the shutter drive unit 9 shown in FIG. 1 to move the shutter 9a up and down to open or close the entrance / exit 1b. FIG. 2 shows a state in which the shutter 9a is lowered and the entrance / exit 1b is opened.

  An opening 10b for inserting and discharging the card 200 is formed at the center of the card insertion / discharge port unit 10. Through holes 10 c are formed on both sides of the card insertion / discharge port unit 10. The depth direction of the opening 10b and the through hole 10c is parallel to the card insertion direction S.

  When the insertion of the card 200 is detected by the micro switch 8a or the small magnetic head 8b, the control unit 2 shown in FIG. 1 transmits a magnetic field generation command to the magnetic field control unit 13. When receiving the magnetic field generation command, the magnetic field control unit 13 causes the magnetic field generation unit 11 to radiate a disturbing magnetic field from the loop antenna 12.

  As another example, an activation command may be transmitted from the ATM to the card processing device 100 when the user stands in front of the ATM. Then, the control unit 2 that has received the activation command via the host interface 7 may transmit a magnetic field generation command to the magnetic field control unit 13 and cause the magnetic field generation unit 11 to emit a disturbing magnetic field. In this case, a disturbing magnetic field is radiated by the magnetic field generation unit 11 before or simultaneously with the insertion of the card 200 into the card insertion / discharge port unit 10. As another example, the disturbing magnetic field may be always emitted without stopping.

  When the card position detection sensor 6 detects that the card 200 is taken into the main body 1, the control unit 2 transports the card 200 by the card transport unit 5 and transmits a magnetic field stop command to the magnetic field control unit 13. . When the magnetic field control unit 13 receives the magnetic field stop command, the magnetic field generation unit 11 stops the emission of the disturbing magnetic field from the loop antenna 12. As another example, after radiating the disturbing magnetic field for a predetermined time, the radiation of the disturbing magnetic field may be stopped, or the disturbing magnetic field may be always emitted without stopping.

  Thereafter, the card 200 is transported by the card transport unit 5, and the magnetic information of the card 200 is read by the magnetic reading unit 4. When the processing for the card 200 is completed, the card transport unit 5 transports the card 200 to the card insertion / ejection port unit 10 through the card entry / exit port 1a, and ejects it from the opening 10b in the T direction (FIG. 2). When the card is ejected, the magnetic field controller 13 radiates a disturbing magnetic field from the loop antenna 12 by the magnetic field generator 11.

  Further, when the card 200 is an IC card when the card 200 is inserted into the card slot 1a, the IC contact detection sensor 22 detects that the card 200 is an IC card. If the card 200 is an IC card, the IC card communication unit 20 reads information recorded on the IC chip of the inserted IC card and provides the information to the control unit 2.

(3) IC Contact Detection and Magnetic Field Direction Next, the mounting position of the loop antenna 12 will be described with reference to FIGS. In the present embodiment, as shown in FIG. 4, the loop antenna 12 is attached so that the output of the IC contact detection sensor 22 is not affected by the magnetic field. Specifically, the IC contact detection sensor 22 is arranged such that the output direction and the direction of the disturbing magnetic field from the loop antenna 12 are orthogonal to each other.

  By arranging the IC contact detection sensor 22 and the loop antenna 12 as shown in FIG. 4, the disturbing magnetic field from the loop antenna 12 effectively irradiates the magnetic head 50 of the unauthorized device with the IC, The function of the IC contact detection sensor 22 can be maintained without relatively disturbing the output of the contact detection sensor.

  As another form, as shown in FIG. 5, two loop antennas 12 may be attached so as to surround the card insertion / discharge port so that the output of the IC contact detection sensor 22 is relatively unaffected by the magnetic field. Even in this case, since the output direction of the IC contact detection sensor 22 and the direction of the disturbing magnetic field from the loop antenna 12 are orthogonal to each other, the loop antenna 12 is effective against the magnetic head 50 of the unauthorized device. While irradiating a magnetic field, the function of the IC contact detection sensor 22 can be maintained without relatively disturbing the output of the IC contact detection sensor.

(4) Output of IC contact detection sensor Next, in addition to arranging the IC contact detection sensor 22 as described above, a method for stabilizing the output of the IC contact detection sensor 22 and detecting the IC contact more correctly Will be described. As a first method, there is a method in which the oscillation frequency of the disturbing magnetic field from the loop antenna 12 and the oscillation frequency of the IC contact detection sensor 22 are sufficiently separated from each other. As a second method, there is a method of correctly detecting an IC contact triggered by detection of the card insertion detection sensor 8. By these methods, the output of the IC contact detection sensor 22 can be stabilized.

  FIG. 6 shows a case where the oscillation frequency of the disturbing magnetic field and the oscillation frequency of the IC contact detection sensor 22 are sufficiently separated from each other. In this case, the influence of the interference magnetic field on the amplitude of the output of the IC contact detection sensor 22 can be suppressed, and the amplitude of the output of the IC contact detection sensor 22 is stabilized. Therefore, as shown in FIG. 6, by making the oscillation frequency of the disturbing magnetic field and the oscillation frequency of the IC contact detection sensor 22 sufficiently separated from each other, the detection of the IC contact by the IC contact detection sensor 22 can be normally operated. Can do.

  Specifically, when the oscillation frequency of the disturbing magnetic field is 3.0 kHz, the oscillation frequency of the magnetic field for detecting the IC contact of the IC contact detection sensor 22 is set to 300 kHz. Thus, the influence on the amplitude of the output of the IC contact detection sensor 22 due to the interference of the disturbing magnetic field is reduced by setting the oscillation frequency of the disturbing magnetic field and the oscillation frequency of the IC contact detection sensor 22 sufficiently apart from each other.

  In the present embodiment, as shown in FIG. 4 or FIG. 5, the loop antenna 12 is attached so that the IC contact detection sensor 22 has a magnetic field direction that is not affected by the magnetic field. As shown, the influence of the interference magnetic field interference on the output amplitude of the IC contact detection sensor 22 is further reduced by setting the oscillation frequency of the disturbing magnetic field and the oscillation frequency of the IC contact detection sensor sufficiently apart. In addition, the IC contact detection function by the IC contact detection sensor 22 can be maintained normally.

  Next, regarding the second method of stabilizing the output of the IC contact detection sensor 22, a method of detecting the IC contact using the output of the card insertion detection sensor 8 as a trigger will be described.

  FIG. 7 shows a configuration in which the card insertion / discharge port unit 10 is provided with a microswitch 8a and an actuator 8c. The card insertion detection sensor 8 detects that when the IC card is inserted into the card insertion / discharge port unit 10, the card 200 abuts against the actuator 8c, and the micro switch 8a is turned on to insert the IC card. Is detected.

  After the insertion of the IC card is detected by the card insertion detection sensor 8, the IC contact detection sensor 22 is attached at a position where the IC contact 202 of the IC card approaches the IC contact detection sensor 22. In the present embodiment, the presence or absence of the IC contact 202 of the IC card can be correctly determined by using the changing point of the card insertion detection sensor 8 as a reference.

(5) Generation or output timing of each waveform FIG. 8 shows the output timing of the interference wave output from the magnetic field generator 11 (loop antenna 12) and the output from the IC contact detection sensor 22 (IC contact detection controller 21). It is a sequence diagram which shows the detection timing of an IC contact detection signal. The output timing of other signals is also shown. Hereinafter, the output timing will be described in order from the top.

  First, the output timing of the interference wave S1 will be described. The magnetic field generator 11 controls the current flowing through the loop antenna 12 based on the control signal from the magnetic field controller 13, and intermittently outputs the interference wave S <b> 1 from the loop antenna 12. Specifically, the interference wave S1 is output while changing the amplitude with time. It is desirable that the amplitude change is not monotonous but complicated, and if it is random, it is most desirable. As a result, a disturbing magnetic field is generated intermittently.

  In other words, the disturbing magnetic field is shown in FIG. 6 as being always generated with a constant intensity due to a constant amplitude and frequency interference wave. As shown in FIG. 8, it is intermittently generated by an interfering wave whose amplitude is changed over time. Skimming can be made more difficult by changing the amplitude of the disturbing wave to generate a disturbing magnetic field.

  Next, the output timing of the enable signal S2 and the detection signal S3 will be described. The IC contact detection control unit 21 outputs the detection signal S3 input from the IC contact detection sensor 22 to the control unit 2 based on an enable signal S2 from a circuit (not shown) provided therein, for example. Specifically, the detection signal S3 input from the IC contact detection sensor 22 is output to the control unit 2 while the enable signal S2 is being output (while it is valid).

  Here, regarding the output timing of the enable signal S2, the IC contact detection control unit 21 outputs the enable signal S2 when the amplitude of the time-division interference wave S1 is near zero. In this case, it is possible to input the detection signal S3 when the disturbing magnetic field is weak or substantially stopped. The presence or absence of the IC contact is detected while preventing the skimming without fail, since the presence or absence of the IC contact is detected at a timing when the disturbing magnetic field is generated without being completely stopped and is hardly affected by the disturbing magnetic field. It can be detected properly.

  Next, the output timing of the determination value S4 will be described. The control unit 2 determines whether an IC card is inserted from the opening 10b based on the input detection signal S3 at the timing when the detection signal S3 from the IC contact detection control unit 21 is input, and determines the determination value S4 as a shutter. Output to the drive unit 9. Here, it is shown that the determination value S4 indicating the presence of an IC card is output to the shutter drive unit 9 at the timing when the detection signal S3 indicating the presence of an IC contact is input for the first time while the enable signal S2 is valid. (See dashed arrow).

  As another embodiment, the control unit 2 inputs both a detection signal S3 indicating the presence of an IC contact from the IC contact detection control unit 21 and a detection signal S6 indicating the presence of a card from the card insertion detection sensor 8. At this timing, the determination value S4 indicating the presence of the IC card may be output to the shutter drive unit 9 based on the input detection signal S3 and detection signal S6.

  Next, the output timing of the drive signal S5 will be described. The shutter drive unit 9 outputs a drive signal S5 indicating an opening command of the shutter 9a to the shutter 9a at the timing when the determination value S4 indicating the presence of the IC card is input from the control unit 2. The shutter 9a operates to open the opening 19b based on the drive signal S5.

  The shutter drive unit 9 outputs a release command to the shutter 9a, and then inputs a detection signal S7 indicating that an IC card has been inserted from the card position detection sensor 6 (see the broken line arrow). The shutter drive unit 9 outputs a drive signal S5 indicating a closing command for the shutter 9a to the shutter 9a at the timing when the detection signal S7 is input. The shutter 9a operates to close the opening 19b based on the drive signal S5.

(6) Effects of this Embodiment As described above, according to this embodiment, the card insertion / discharge port unit 10 of the card processing apparatus 100 is obstructed by the opening 10b for inserting and discharging the card 200 and the loop antenna 12. A magnetic field generation unit 11 that generates a magnetic field and an IC contact detection sensor 22 that detects the presence or absence of an IC contact of the IC card are provided. The detection timing of the IC contact detection sensor 22 generates a magnetic field of a disturbing magnetic field from the loop antenna 12. Configured to synchronize with no or weak timing. Accordingly, whether or not the inserted card 200 is a card having an IC contact without reducing the performance of the IC contact detection sensor while preventing unauthorized reading (skimming) of magnetic information of the magnetic card by an unauthorized device. Can be detected.

  Further, since it is possible to detect whether the inserted card 200 is a card having an IC contact, by combining the card insertion detection sensor 8 and the IC contact detection sensor 22, there is an IC contact for the purpose of mischief and fraud. Card insertion can be prevented. Further, since it can be detected whether the inserted card 200 is a card having an IC contact, the IC contact unit is operated only when an IC card transaction is possible, thereby extending the life of the IC contact unit. be able to.

DESCRIPTION OF SYMBOLS 1 Main body 1a Card entrance / exit part 2 Control part 4 Magnetic reading part 5 Card conveyance part 8 Card insertion detection sensor 10 Card insertion discharge unit 11 Magnetic field generation part 12 Loop antenna 13 Magnetic field control part 20 Card communication part 21 IC contact detection control part 22 IC contact detection sensor 100 card processing device 200 card

Claims (6)

An opening for inserting and ejecting the card;
A magnetic field generator for generating a disturbing magnetic field;
An IC contact detection sensor for detecting the presence or absence of an IC contact;
A control unit for controlling the operation of the magnetic field generation unit and the IC contact detection sensor,
The controller is
If the card from the opening is inserted in the card insertion waiting state, and the timing for antibody originating below a predetermined value the disturbing magnetic field by the magnetic field generating unit, and the timing for detecting the presence or absence of an IC contact by the IC contact detection sensor is synchronized card insertion outlet unit, characterized in that the control to. It has a card insertion detection sensor that detects card insertion,
The controller is
If the card from the opening is inserted in the card insertion waiting state, timing based on the timing of detecting the presence or absence of insertion of the card by the card insertion detection sensor, Generating an interference magnetic field in a predetermined value or less by the magnetic field generator If, card insertion outlet unit according to claim 1 and a timing for detecting the presence or absence of an IC contact by the IC contact detection sensor you characterized in that control to synchronize. The controller is
When the card insertion detection sensor detects that a card is inserted, and the IC contact detection sensor detects that a card is present, the shutter that enables insertion of the card is opened. The card insertion / discharge port unit according to claim 2. The controller is
Card insertion outlet unit according to any one of claims 1 to 3, characterized in that to intermittently generate the disturbing magnetic field by the magnetic field generator. A card processing device, comprising the card insertion / discharge port unit according to claim 1.   An automatic transaction apparatus equipped with the card processing apparatus according to claim 5.

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