JP2015095014A - Valuable medium processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect that one valuable medium carried in a carrying path is carried in a state that the one valuable medium is separated into two or more pieces.SOLUTION: A valuable medium processor comprises: a carriage part carrying a valuable medium; a medium state detection sensor detecting passage of the valuable medium carried in the carriage part; a medium state determination part determining whether or not one valuable medium is carried in a state that the one valuable medium is separated into two or more pieces on the basis of a signal obtained by having detected the passage of the valuable medium by the medium state detection sensor and a signal indicating that it becomes impossible to detect the valuable medium by the medium state detection sensor while the valuable medium passes; and a carriage control part carrying the valuable medium carried in a state that the valuable medium is separated into the two or more pieces to a prescribed carriage destination on the basis of a determination result of the medium state determination part.

Description

  The present invention relates to a valuable medium processing apparatus that processes valuable media such as banknotes and gift certificates, and particularly relates to a valuable medium processing apparatus that monitors the state of a valuable medium conveyed in the apparatus.

  2. Description of the Related Art Conventionally, in a money handling apparatus used for processing banknotes in a financial institution such as a bank, a sensor for detecting passage of banknotes is provided at a key point of a transport path for transporting banknotes inside the apparatus. . A sensor that detects passage of banknotes in the transport path is configured by a light projecting unit and a light receiving unit. The light emitted from the light projecting unit to the light receiving unit is normally in a translucent state, and the leading edge of the banknote is detected based on the fact that the irradiated light is blocked by the passing banknote. The passage of the bill trailing edge is detected based on the light state.

  For example, Patent Document 1 discloses an apparatus that arranges a plurality of sensors on a conveyance path and monitors the conveyance status of banknotes. In this device, a first timer that measures the time until the banknote to be conveyed reaches the sensor on the downstream side from the sensor on the upstream side of the transport path, and the time until the banknote reaches the sensor on the further downstream side from here. The conveyance state of a banknote is monitored using the 2nd timer which measures time. By this monitoring, in addition to the banknotes being transported in a normal state, the banknotes being transported are being transported in an abnormally close state, or being transported in a state where a plurality of banknotes are overlapped. Can be detected. For example, even if the banknotes being transported are transported in an abnormally approaching or overlapping state, if it is detected that the banknote is in a normal transport state thereafter, the banknote processing is continued without stopping. This makes it possible to improve the operation efficiency of the apparatus.

JP-A-11-265472

  However, in the above prior art, it is not assumed that the banknotes are separated into two or more sheets. Therefore, when one banknote being conveyed on the conveyance path is torn and separated into two or more sheets. This cannot be detected accurately.

  Money handling equipment is designed to transport bills at high speed and reliably on the transport path inside the device. For example, banknotes that are severely damaged or broken and partially broken are normal. Since the strength is weaker than that of banknotes, there are cases where two or more sheets are torn when being fed out to the transport path or during subsequent transport. In the above prior art, when one banknote is torn during transportation and separated into two sheets, the two banknotes overlapped into one are separated into one by one during transportation. Will be mistakenly recognized as having returned to a normal transport state. If one banknote is torn and separated into two but is mistakenly recognized as two normal banknotes, the process of counting and storing banknotes cannot be performed accurately. For this reason, when a change in the conveyance state is detected, it is necessary to stop the apparatus in order to confirm the conveyance state of the banknote, and it is impossible to realize an operation of continuing the processing while detecting the change in the conveyance state.

  The present invention has been made to solve the above-described problems of the prior art, and detects that a single valuable medium transported on a transport path inside the apparatus is transported in a state of being separated into two or more sheets. It is an object of the present invention to provide a valuable medium processing apparatus that can perform such a process.

  In order to solve the above-described problems and achieve the object, the present invention includes a transport unit that transports a valuable medium, a medium state detection sensor that detects passage of the valuable medium transported through the transport unit, and the medium state detection. One valuable medium based on a signal detected by the sensor to detect the passage of the valuable medium and a signal indicating that the valuable medium cannot be detected by the medium state detection sensor while the valuable medium is passing. Is determined to be transported in a state of being separated into two or more sheets, and the value being conveyed in a state of being separated into two or more sheets based on the determination result by the medium state determination unit A conveyance control unit configured to convey the medium to a predetermined conveyance destination.

  Further, according to the present invention, in the above invention, the medium state determination unit is in a state in which the medium state detection sensor cannot detect the valuable medium between the time when the leading edge of the valuable medium passes and the time when the trailing edge passes. And when a detection result indicating that the measured length from the leading edge to the trailing edge is longer than the actual length of the valuable medium is obtained. It is determined that the medium is conveyed in a state of being separated into two or more sheets.

  Further, in the present invention according to the above invention, the medium state determination unit should detect an actual value obtained by detecting the valuable medium by the medium state detection sensor and when the valuable medium passes the medium state detection sensor. A medium reference length indicating an actual length of the valuable medium, and a light transmission distance in which a light transmission state in which the valuable medium is not detected while the passage of the valuable medium is detected by the medium state detection sensor is detected. Based on this, it is determined whether or not one valuable medium is conveyed in a state of being separated into two or more sheets.

  Further, the present invention is the above invention, wherein the medium state determination unit indicates that a determination value obtained by adding the light transmission distance to the medium reference length is substantially the same as the actual measurement value, and this value is the medium reference length. When a determination result indicating a longer time is obtained, it is determined that one valuable medium is conveyed in a state of being separated into two or more sheets.

  Further, in the present invention according to the above invention, the medium state determination unit determines that the valuable medium is transported in a holed state when the determination value and the actually measured value indicate different values. It is characterized by doing.

  In the present invention, the medium state determination unit may detect a trailing edge of the valuable medium while an area previously set as a mask range on the valuable medium passes through the medium state detection sensor. The processing is not performed.

  Further, the present invention is characterized in that, in the above-mentioned invention, further provided is a notifying unit for notifying a transport destination of a valuable medium determined to be transported in a state of being separated into two or more sheets.

  According to the present invention, the actual value detected by the medium state detection sensor provided in the conveyance unit for the valuable medium conveyed by the conveyance unit is longer than the actual length of the valuable medium, and the valuable medium passes through the medium state detection sensor. When it is detected that a translucent state in which no valuable medium is detected in the meantime is detected, it can be determined that the valuable medium has been separated into two or more sheets and conveyed, so the number of valuable media is two or more. It is possible to accurately detect that they are separated and transported. Further, each piece of paper separated into two or more sheets can be transported to a predetermined transport destination, such as a withdrawal port or a storage unit, as a single valuable medium.

  Further, according to the present invention, it is detected that the valuable medium is in a translucent state while passing through the medium state detection sensor, and the length of the valuable medium based on the actual measurement value is the actual tag of the valuable medium. If a detection result indicating that the length is the same is obtained, this valuable medium is transported in a holed state, not in a state of being separated into two or more sheets. Can be determined correctly.

  In addition, according to the present invention, since a transport destination for transporting a valuable medium that is transported in a state of being separated into two or more sheets is notified, a user of the valuable medium processing apparatus has separated into, for example, two or more sheets. It is possible to easily perform repair work for collecting valuable media together and joining separated parts.

FIG. 1 is a schematic cross-sectional view showing the internal configuration of the valuable medium processing apparatus according to the present embodiment. FIG. 2 is a block diagram for explaining a functional configuration of the valuable medium processing apparatus according to the present embodiment. FIG. 3 is a schematic diagram for explaining a method of discharging two types of damaged bills stored in the storage unit of the valuable medium processing apparatus to the withdrawal port. FIG. 4 is a diagram for explaining a determination result when the valuable medium conveyed in the valuable medium processing apparatus is a normal medium. FIG. 5 is a diagram for explaining the determination result when the valuable medium conveyed in the valuable medium processing apparatus is a perforated medium having a hole. FIG. 6 is a diagram for explaining the determination result when the valuable medium transported in the valuable medium processing apparatus is a separation medium separated into two sheets. FIG. 7 is a diagram illustrating actual measurement values and determination values when a normal medium, a perforated medium, and a separation medium are detected. FIG. 8 is a flowchart showing a method for distinguishing and detecting normal media, perforated media, and separation media.

  Hereinafter, preferred embodiments of a valuable medium processing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, valuable media that cannot be accepted by the machine, such as banknotes that are damaged or dirty, old banknotes, checks, etc., that are not accepted by ordinary money handling devices that identify and store the denomination and authenticity of the banknotes are accepted. An example of a valuable medium processing apparatus that is housed and managed therein will now be described.

  FIG. 1 is a schematic cross-sectional view showing the internal configuration of the valuable medium processing apparatus 1. As shown in FIG. 1, the valuable medium processing apparatus 1 includes a deposit port 10 for receiving a valuable medium stored in the apparatus, and a withdrawal port for discharging the valuable medium stored in the apparatus to the outside of the apparatus. 60. The depositing port 10 is provided with a feeding mechanism 12, and a plurality of valuable media placed on the depositing port 10 by an operator are fed into the apparatus one by one by the feeding mechanism 12. The valuable medium fed out into the apparatus is conveyed by a conveying unit 14 provided in the apparatus.

  The transport unit 14 is provided with an image acquisition unit 16. The image acquisition unit 16 has a function of acquiring image data by capturing an image of the valuable medium fed into the valuable medium processing apparatus 1. Further, the transport unit 14 is provided with a temporary storage unit 20 for temporarily storing the valuable medium fed into the valuable medium processing apparatus 1.

  The temporary storage unit 20 is a tape winding type storage unit that winds a valuable medium between tapes. The temporary storage unit 20 includes a drum 20a that can rotate in both forward and reverse directions, and a pair of tapes can be taken up and delivered by the drum 20a. As a result, the valuable medium sent from the transport unit 14 to the temporary storage unit 20 is sequentially wound and stored on the drum 20a one by one while being sandwiched between the pair of tapes. Further, when the drum 20 a is reversed, the wound valuable media are fed out one by one and sent out to the transport unit 14.

  Further, in the device of the valuable medium processing device 1, a check storage unit 30 for storing valuable media such as checks and bills, and a first and second banknote storage unit 40 and a second banknote storage for storing non-use and old tickets. A unit 42 and a new ticket storage unit 50 for storing new tickets are provided. Note that, for example, banknotes that are so damaged as to be unacceptable by a normal money handling apparatus, dirty banknotes, and the like that are received as non-payment bills, and banknotes that are currently issued are stored as old bills. It is a banknote that is older than the issue date and is not suitable for distribution in the market.

  The check storage unit 30 is a stacking type storage unit, and valuable media such as checks sent from the transport unit 14 are stored so as to be stacked on checks or the like already stored therein. The check storage unit 30 includes three storage units, a first check storage unit 30a, a second check storage unit 30b, and a third check storage unit 30c. For example, the check storage unit 30 is based on information such as a bank that issued the check. Checks can be classified and stored in the storage units 30a to 30c.

  In the first banknote storage unit 40 and the second banknote storage unit 42, banknotes and old tickets are stored. The first banknote storage unit 40 is a stacking type storage unit, and the banknotes and old tickets sent from the transport unit 14 are stacked on the banknotes and old tickets already stored inside. Stored. On the other hand, the second banknote storage unit 42 is a tape winding type storage unit. The second non-conventional bill storage unit 42 has a drum 42a that can rotate in both forward and reverse directions, and a pair of tapes can be taken up and delivered by the drum 42a. As a result, the valuable medium sent from the transport unit 14 is sequentially wound up and stored on the drum 42a one by one while being sandwiched between the pair of tapes. Further, when the drum 42 a is reversed, the wound valuable media are fed out one by one and sent out to the transport unit 14.

  The new ticket storage unit 50 includes four storage units: a first new ticket storage unit 50a, a second new ticket storage unit 50b, a third new ticket storage unit 50c, and a fourth new ticket storage unit 50d. For example, new tickets are stored in denominations in the storage units 50a to 50d. The storage units 50a to 50d are provided with feeding mechanisms 52a to 52d so that new tickets stored therein can be fed to the transport unit 14 one by one. The “new ticket” stored in the new ticket storage unit 50 refers to an official sealed ticket that has been delivered from a central bank to a financial institution such as a bank and has not yet been distributed to the market.

  The withdrawal port 60 is connected to the transport unit 14, and the valuable medium transported by the transport unit 14 is discharged into the withdrawal port 60 via the transport unit 14c or 14d. The banknote is discharged from the transport unit 14d, and a check or the like having a long length in the transport direction is discharged from the transport unit 14c. The withdrawal port 60 is provided with an impeller 62, and the valuable medium sent from the transport unit 14 to the impeller 62 is sandwiched between a pair of blades forming the impeller 62. 62 is sent to the withdrawal port 60 by rotating counterclockwise in FIG. The withdrawal port 60 is provided with a shutter 61a, and when the shutter 61a is opened, the operator takes out valuable media such as a slip or new ticket accumulated in the withdrawal port 60. Can do. In addition, a withdrawal detection unit 61 b is provided in the withdrawal port 60 so that it can be detected that valuable media accumulated in the withdrawal port 60 has been removed from the withdrawal port 60.

  The conveyance unit 14 that conveys the valuable medium in the valuable medium processing apparatus 1 includes a first conveyance unit 14a and a second conveyance unit 14b. The 1st conveyance part 14a conveys the valuable medium drawn | fed out from the deposit port 10 in the apparatus to the temporary storage part 20, the check storage part 30, the 1st damage ticket storage part 40, and the 2nd damage ticket storage part 42 It is. On the other hand, the 2nd conveyance part 14b pays out the new ticket accommodated in the new ticket storage part 50, and conveys it to the payment port 60. FIG. Although the 1st conveyance part 14a and the 2nd conveyance part 14b are connected by the connection location 14p, they are mutually independent in the location other than that. The transport unit 14 has a medium detection sensor for detecting the passage of the valuable medium at a plurality of positions, and a branch claw for switching the transport destination of the valuable medium based on the detection result of the valuable medium by the medium detection sensor. Is provided.

  The medium detection sensor includes a light projecting unit and a light receiving unit disposed with the transport unit 14 interposed therebetween, and is normally in a translucent state in which light emitted from the light projecting unit is received by the light receiving unit. The medium detection sensor detects the passage of the leading edge of the valuable medium based on the fact that the irradiation light from the light projecting unit is blocked by the valuable medium passing through the transport unit 14, and then changes from the light shielding state to the light transmitting state again. Based on this, the passage of the trailing edge of the valuable medium is detected. The branch claw is provided at a branch point of the transport path, and the transport destination of the valuable medium can be switched in accordance with the timing when each valuable medium arrives by controlling the branch claw based on the detection result by the medium detection sensor. It is like that.

  In the valuable medium processing device 1, at least one of these medium detection sensors arranged in the first conveyance unit 14a is used as a medium state detection sensor 70 for detecting the conveyance state of the valuable medium. In the valuable medium processing device 1 shown in FIG. 1, the medium detection sensor in the first transport unit 14 a between the first slip ticket storage unit 40 and the second slip card storage unit 42 is used as the medium state detection sensor 70.

  A simple identification unit 64 is provided in the second transport unit 14b. The simple identification unit 64 has a function of identifying only the denomination of the new ticket fed out from the new ticket storage unit 50 to the second transport unit 14b. Further, a door 18 is provided on the front surface (left side of FIG. 1) of the valuable medium processing apparatus 1, and a person having specific authority can open the door 18 and access the inside of the valuable medium processing apparatus 1. By opening the door 18, a new ticket can be replenished to the new ticket storage unit 50 or a new ticket can be taken out from the new ticket storage unit 50.

  In the present embodiment, the valuable medium processing apparatus 1 is in the state of the valuable medium on the conveyance unit 14, taking as an example the case where the non-conformity card stored in the second non-conventional ticket storage unit 42 is fed and conveyed by the conveyance unit 14. A method of detecting the will be described. In the second banknote storage section 42, the banknotes are stored in a state where they are sandwiched between tapes and wound around the drum 42a. Is managed in the valuable medium processing apparatus 1.

  FIG. 2 is a block diagram for explaining a functional configuration of the valuable medium processing apparatus 1. The valuable medium processing apparatus 1 includes a control unit 80 and a storage unit 90 in addition to the components shown in FIG. FIG. 2 shows only the components necessary for detecting the conveyance state of the valuable medium.

  The control unit 80 includes a conveyance control unit 81 that controls conveyance of the valuable medium in the apparatus, a medium state determination unit 82 that determines a conveyance state of the valuable medium based on a detection result by the medium state detection sensor 70, and two sheets. And a notification unit 83 that notifies the transport destination of the valuable medium transported in the separated state.

  The storage unit 90 is a nonvolatile storage device for storing various types of information used by the control unit 80. The storage unit 90 is in a state in which the order of the slips stored in the second banknote storage unit 42, the denomination, and the bill length of the slips to be detected by the medium state detection sensor 70 are associated with each other. Is stored as storage medium information 91. As a result, in the valuable medium processing device 1, when the banknotes stored in the second banknote storage unit 42 are sequentially fed out and transported through the transport unit 14, the denomination of the banknotes that are fed out, the medium state detection sensor 70. The bill length detected by can be recognized. Note that the bill length detected by the medium state detection sensor 70 is a bill length in the conveyance direction of banknotes of the same denomination as the banknotes in the case of non-defects. In addition, in the case of a slip that is partially missing on the front edge side and the rear edge side in the transport direction, it is the bill length in the transport direction at a position passing through the medium state detection sensor 70.

  For example, when the valuable medium processing device 1 accepts and stores a non-conformity ticket, the non-conformity card length is calculated and determined from the non-conformity image captured by the image acquisition unit 16. However, the method of determining the bill length of the slipped ticket is not limited to this, and for example, an aspect in which the bill length of the slipped ticket is actually measured by the medium detection sensor or the medium state detection sensor 70 provided in the transport unit 14. It does not matter. Also, when the denomination of the denomination can be identified by machine, or when the denomination is input by operating an operation unit (not shown), the denomination is determined with reference to the bill length of each denomination stored in advance. It may be an aspect. In addition, the information such as the bill length of the non-performing ticket is not limited to a mode in which the information is stored in the storage unit 90 inside the valuable medium processing apparatus 1, but is stored in an external device that is communicably connected to the valuable medium processing apparatus 1 It does not matter.

  The process of detecting the transport state of the valuable medium is performed during the process of receiving and storing a slip in the deposit slot 10 and the process of discharging the slip from the second slip ticket storage unit 42 to the withdrawal slot 60. Further, in addition to deposit processing and withdrawal processing, it is possible to perform transport state detection processing during various processes involving transport of money, such as a scrutiny process for confirming the amount of money in the apparatus. As an example of these processes, a process of paying out two types of non-conformity tickets from the second non-conformity storage unit 42 and discharging them to the withdrawal port 60 will be described.

  FIG. 3 is a view for explaining a method of paying out a denomination ticket of two denominations from the second non-use ticket storage unit 42 and discharging it to the withdrawal port 60. For example, a process of discharging all 10,000 yen bills and 5,000 yen bills stored in the second non-conforming bill storage unit 42 will be described as an example. Specifically, after all 10,000 yen bills stored in the second non-conventional bill storage unit 42 are discharged to the withdrawal port 60, all the five bills stored in the second non-conventional ticket storage unit 42 are subsequently collected. Thousand yen bills are discharged to the withdrawal port 60.

  First, as shown in FIG. 3 (a), the transport control unit 81 controls the second banknote storage unit 42 and the temporary holding unit 20, and the banknotes that are sequentially fed out from the second banknote storage unit 42 are It passes through a medium state detection sensor 70 provided in the transport unit 14. At this time, the medium state detection sensor 70 performs measurement for determining the state of the damaged bill, and the measurement result is input to the medium state determination unit 82. The medium state determination unit 82 determines the state of conveyance of the damaged ticket, but details of the determination process will be described later.

  The conveyance control unit 81 refers to the storage medium information 91 stored in the storage unit 90, and controls the conveyance unit 14 in the case where the lost ticket that has passed through the medium state detection sensor 70 is a 10,000 yen bill. Then, this is conveyed to the withdrawal port 60 and discharged ((1) in FIG. 3A). On the other hand, the transport control unit 81 controls the transport unit 14 and the temporary storage unit 20 and transports them to the temporary storage unit 20 when the non-performing bill passed through the medium state detection sensor 70 is a 5,000 yen bill. And housed ((2) in FIG. 3A). In addition, when the non-payable denomination is passed through the medium state detection sensor 70, the conveyance control unit 81 is separated and conveyed by the medium state determination unit 82 into two or more sheets regardless of the denomination. Even if it is determined that it is, it is transported and stored in the temporary holding unit 20 as in the case of the 5,000 yen bill ((3) in FIG. 3A). That is, only 10,000 yen bills that are not separated into two or more sheets are transported to the withdrawal port 60, and all other non-payment tickets including 10,000 yen bills separated into two or more sheets are transported to the temporary holding unit 20. . At this time, the conveyance control unit 81 stores information including the order of the banknotes stored in the temporary storage unit 20, the denomination, and the determination result by the medium state determination unit 82 in the storage unit 90.

  After all the 10,000 yen bills stored in the second banknote storage unit 42 are discharged to the withdrawal port 60, when the shutter 61a is opened and all the banknotes in the withdrawal port 60 are removed, the withdrawal detection unit 61b This extraction is detected. When the 5,000-yen bill can be discharged into the withdrawal port 60, the transport control unit 81 controls the temporary holding unit 20 and is stored in the temporary holding unit 20 as shown in FIG. We started paying out 5,000 yen bills, non-withdrawal denomination tickets, and non-payable denominations.

  The conveyance control unit 81 recognizes the denomination and state of the non-paid bill that has been paid out from the temporary holding unit 20 based on the information previously stored in the storage unit 90. Then, when the banknote is a five thousand yen bill, the transport control unit 81 transports the ticket to the withdrawal port 60 and discharges it ((1) in FIG. 3B). On the other hand, the conveyance control unit 81 controls the conveyance unit 14 and the second non-conventional ticket storage unit 42 when the non-payable ticket issued from the temporary holding unit 20 is controlled. It is transported and stored in the second banknote storage unit 42 ((2) in FIG. 3B). In addition, when the non-payment ticket that has been paid out from the temporary holding unit 20 is a non-separated ticket, the conveyance control unit 81 controls the conveyance unit 14 to control the conveyance of the first non-use ticket storage unit 40. (3 in FIG. 3B). It should be noted that during these processes, information such as the type of the slips stored in each of the temporary storage unit 20, the first banknote storage unit 40, and the second banknote storage unit 42, the stored time, and the like are stored in the storage order. The information recorded in association with the storage unit 90 and recorded according to the change in the storage state is updated.

  When all the 5,000 yen bills are discharged to the withdrawal port 60, the shutter 61a is opened and all the banknotes in the withdrawal port 60 are extracted. In this way, it is possible to discharge all of the two denominations of 10,000 yen bills and 5,000 yen bills stored in the second non-payment storage unit 42 to the withdrawal port 60.

  On the other hand, when the process of storing all of the two or more non-conformity tickets into the first non-conformity storage unit 40 is completed, the notification unit 83 shown in FIG. A lamp or the like provided in the storage unit 42 notifies the operator that the first banknote storage unit 40 has stored two or more banknotes. The operator who has confirmed this notification takes out the slips collected in the first slip ticket storage unit 40 and repairs the breakage. The repaired 10,000 yen bill is collected together with the 10,000 yen bill previously withdrawn from the withdrawal port 60. On the other hand, the repaired non-debt card of another denomination is deposited again into the valuable medium processing apparatus 1 and stored in the second non-slip ticket storage unit 42, for example.

  In addition, about the banknote separated into two or more sheets, the aspect which conveys to the deposit port 10, and discharges it besides the aspect conveyed and accommodated in the 1st banknote accommodating part 40 may be sufficient. The operator can collect the damage ticket to be withdrawn from the withdrawal port 60 and can take out the torn ticket from the deposit port 10 and perform work such as repair.

  Next, a description will be given of a method for detecting that the non-conventional ticket transported through the transport unit 14 is separated into two or more. FIG. 4 shows a case where the transported non-perforated slip is in a normal state where no hole is formed and is not separated (normal medium 100), and FIG. 5 is a non-separated slip of the same denomination as in FIG. 6 shows a case (perforated medium 101), and FIG. 6 shows a case where the same denomination as in FIG. 4 is separated into two (separated medium 102).

  In the valuable medium processing apparatus 1, it can be detected that the valuable medium is conveyed in a state of being separated into two or more sheets. However, in the following, for the sake of simplification, as shown in FIG. As an example, a method of detecting the separation medium 102 shown in FIG. 6 separately from the normal medium 100 shown in FIG. 4 and the perforated medium 101 shown in FIG. 5 will be described.

  4 to 6, (a) shows an appearance of a slip that passes through the medium state detection sensor 70 of the transport unit 14 in the direction indicated by the arrow in the drawing, and (b) shows a slip by the medium state detection sensor 70. A detection signal at the time of detection, (c) a light transmission detection signal in which a light transmission state is detected by the medium state detection sensor 70 after the leading edge of the banknote is detected and the detection of the trailing edge is determined; d) Measured value indicating the actual distance measured by the medium state detection sensor 70 from the time when the leading edge of the slip is detected until the detection of the trailing edge is confirmed, and FIG. The determination values for determining whether or not they are separated are shown.

  FIG. 4 is a diagram for explaining a detection result when the normal medium 100 is detected by the medium state detection sensor 70. As shown in FIG. 4A, a normal medium 100 having a bill length in the transport direction of 160 mm is transported through the transport unit 14, and the leading edge of the valuable medium (the left end in the drawing) is the media state detection sensor 70. When the installation position is reached, as shown in FIG. 6B, the medium state determination unit 82 of the valuable medium processing apparatus 1 detects that the medium state detection sensor 70 has changed from the light transmitting state to the light blocking state (t = T01). Thereafter, when the light-shielding state continues while the leading edge side 20 mm of the normal medium 100 passes (t = t01 to t02), the medium state determination unit 82 determines that the change to the light-shielding state detected earlier is the value before the valuable medium. Determined to be by edge.

  In other words, after the medium state detection sensor 70 changes from the light transmitting state to the light blocking state, the medium state determination unit 82 determines the timing at which the light blocking state has changed to a valuable medium when the light blocking state continues for a predetermined time. It is determined that it is the timing when the leading edge has passed. Thus, for example, when the medium state detection sensor 70 is temporarily shielded from light by dust, this is not erroneously detected as the leading edge of the valuable medium.

  In the valuable medium processing apparatus 1, after the leading edge of the valuable medium is determined, the period during which the valuable medium is conveyed by a distance of 80% of the bill length in the conveying direction is set as a mask range. During the mask range indicated by the broken line in FIG. 4B, processing for detecting passage of the trailing edge of the valuable medium whose right edge is fixed (the right end portion in FIG. 4A) is not performed. Specifically, when the leading edge of the normal medium 100 having a bill length of 160 mm passes through the installation position of the medium state detection sensor 70 (t = t01) and then passes further 20 mm, the leading edge is determined (t = T02), and the period from this point until it passes through 128 mm (80% of the bill length 160 mm) (t = t02 to t03) as a mask range, the detection processing of the trailing edge of the valuable medium is not performed during this period.

  The distance that the valuable medium is conveyed while passing through the installation position of the medium state detection sensor 70 is calculated based on the conveyance speed controlled by the conveyance control unit 81 and the time. The medium state determination unit 82 calculates a conveyance distance in which the valuable medium is conveyed while passing through the medium state detection sensor 70 based on the measurement time and the conveyance speed of the valuable medium acquired from the conveyance control unit 81. The distance that the valuable medium is conveyed while passing through the medium state detection sensor 70 corresponds to the length of the valuable medium in the conveyance direction. Specifically, for example, when a distance of 20 mm is conveyed after the leading edge of the valuable medium passes through the installation position of the medium state detection sensor 70, the valuable medium from the leading edge of the valuable medium to this position is transferred. It indicates that the length in the transport direction is 20 mm.

  After the mask range of the valuable medium passes through the installation position of the medium state detection sensor 70, processing for detecting the trailing edge of the valuable medium is started. When the trailing edge of the normal medium 100 reaches the installation position of the medium state detection sensor 70, the medium state determination unit 82 detects that the medium state detection sensor 70 has changed from the light blocking state to the light transmitting state (FIG. 4B). ) T = t04). Thereafter, when the light transmission state continues while the normal medium 100 is transported a distance of 10 mm (t = t04 to t05), the medium state determination unit 82 determines that the change to the light transmission state detected earlier is valuable. Determined to be by media trailing edge.

  That is, the medium state determination unit 82 changes the transmission state when the medium state detection sensor 70 changes from the light blocking state to the light transmitting state after the mask range has passed and this light transmitting state continues for a predetermined time. It is determined that the timing when the light medium changes is the timing when the trailing edge of the valuable medium passes. Thereby, for example, when the medium state detection sensor 70 is temporarily light-transmitted due to a hole in the valuable medium, this is not erroneously detected as the trailing edge of the valuable medium.

  In parallel with the monitoring process for monitoring the arrival of the leading edge and trailing edge of the valuable medium as shown in FIG. 4B, the medium state determination unit 82, as shown in FIG. Until the passage of the trailing edge of the valuable medium is confirmed (t = t01 to t05) after the passage of the medium, it is monitored whether or not the medium state detection sensor 70 is in the translucent state, and the translucent state is obtained. Time is counted as a translucent detection signal. In other words, the light transmission detection signal is a signal indicating that the valuable medium cannot be detected by the medium state detection sensor 70 while the valuable medium passes through the position of the medium state detection sensor 70. In the translucent detection signal of the normal medium 100, the medium state detection sensor 70 is in a light-shielding state from the passage of the leading edge to the passage of the trailing edge (t = t01 to t04). The period from the change from the light-shielding state to the light-transmitting state until this change is determined to be due to the trailing edge (t = 04 to t05) is detected as the light-transmitting state.

  Thus, while the normal medium 100 shown in FIG. 4A passes through the medium state detection sensor 70, the medium state determination unit 82 causes the medium detection signal shown in FIG. 4B and the medium detection signal shown in FIG. A translucent detection signal is acquired. The medium state determination unit 82 calculates an actual measurement value shown in FIG. 4D and a determination value shown in FIG. 4E from these signals.

  The actual measurement value is a value obtained by measuring the distance that the valuable medium is transported after the leading edge of the valuable medium is detected until the trailing edge of the valuable medium is determined, and is calculated from the medium detection signal. . In the normal medium 100 of FIG. 4, the normal medium 100 is in a period from the time when the leading edge of the normal medium 100 passes through the installation position of the medium state detection sensor 70 until the trailing edge is determined (t = t01 to t05). This is the distance to be conveyed. Specifically, as shown in FIG. 4D, 170 mm obtained by adding a distance of 10 mm to which the normal medium 100 is conveyed until the trailing edge is determined to the tag length 160 mm of the normal medium 100 is the actual measurement value. Become.

  The determination value includes the tag length (medium reference length) of the valuable medium to be detected by the medium state detection sensor 70 and the translucent state between the detection of the leading edge of the valuable medium and the determination of the trailing edge of the valuable medium. It is an addition value with the detected distance (rear edge determination light transmission distance), and is calculated from the light transmission detection signal shown in FIG. In the normal medium 100, the transport length of the normal medium 100 corresponding to the time length from the trailing edge passage to the trailing edge determination (t = t04 to t05) is added to the tag length of the normal medium 100 serving as the medium reference length, It is calculated as shown in FIG. Specifically, 170 mm is obtained by adding the trailing edge determination translucent distance 10 mm to the medium reference length 160 mm of the normal medium 100.

  The medium reference length is acquired with reference to the storage medium information 91 in the storage unit 90. The storage medium information 91 includes information about the bill length of each slip that should be measured when each slip issued from the second slip storage 42 passes through the medium state detection sensor 70. The medium state determination unit 82 acquires this information and uses it as the medium reference length.

  As a result of calculating the actual measurement value and the determination value in this way, when the actual measurement value and the determination value match and this value is equal to the value obtained by adding the trailing edge determination light transmission distance to the medium reference length, the medium state determination unit 82 determines that the detected valuable medium is not a separated valuable medium but a normal valuable medium.

  FIG. 5 is a diagram illustrating a detection result when the perforated medium 101 is detected by the medium state detection sensor 70. As shown in FIG. 5A, a perforated medium 101 having a bill length in the transport direction of 160 mm and having a hole 201 in the banknote is transported through the transport unit 14, and the leading edge of the valuable medium is the medium state detection sensor 70. (B), the medium state determination unit 82 of the valuable medium processing apparatus 1 detects that the medium state detection sensor 70 has changed from the light transmitting state to the light blocking state (see FIG. 5B). t = t11). After this, when the light shielding state continues while the front edge side 20 mm of the perforated medium 101 passes (t = t11 to t12), the medium state determination unit 82 determines that the change to the previously detected light shielding state is a valuable medium. Confirm that it is due to the leading edge.

  The valuable medium processing apparatus 1 does not perform the process of detecting the trailing edge of the valuable medium whose leading edge is determined during the mask range indicated by the broken line in FIG. Specifically, when the leading edge of the perforated medium 101 passes through the installation position of the medium state detection sensor 70 (t = t11) and then passes further 20 mm, the leading edge is determined (t = t12). From this point, until 128 mm passes (t = t12 to t15), the valuable medium trailing edge detection process is not performed.

  If the trailing edge of the perforated medium 101 reaches the installation position of the medium state detection sensor 70 after the mask range of the valuable medium passes through the installation position of the medium state detection sensor 70, the medium state determination unit 82 It is detected that 70 has changed from the light shielding state to the light transmitting state (t = t16). Thereafter, when the translucent state continues while the perforated medium 101 is transported a distance of 10 mm (t = t16 to t17), the medium state determination unit 82 changes the previously detected translucent state. It is determined that it is due to the trailing edge of the valuable medium.

  As shown in FIG. 5C, the medium state determination unit 82 passes the leading edge of the valuable medium in parallel with the monitoring process for detecting the leading and trailing edges of the valuable medium as shown in FIG. Then, the time during which the medium state detection sensor 70 is in the light transmitting state is counted from the time when the trailing edge of the valuable medium is determined (t = t11 to t17). That is, the time during which the valuable medium cannot be detected by the medium state detection sensor 70 while the valuable medium passes through the position of the medium state detection sensor 70 is counted.

  In the case of the perforated medium 101, as shown in FIG. 5C, the translucent state is established while the hole 201 in the valuable medium passes through the installation position of the medium state detection sensor 70 (t = t13 to t14). Detected. Further, even after the change from the light blocking state to the light transmitting state due to the passage of the trailing edge until the change is determined to be due to the trailing edge (t = 16 to t17), it is detected as the light transmitting state. .

  Thus, while the perforated medium 101 shown in FIG. 5A passes through the installation position of the medium state detection sensor 70, the medium state determination unit 82 causes the medium detection signal shown in FIG. The translucent detection signal shown in c) is acquired. The medium state determination unit 82 calculates an actual measurement value shown in FIG. 5D and a determination value shown in FIG. 5E from these signals.

  The actually measured values indicate that the perforated medium 101 is conveyed after the leading edge of the perforated medium 101 passes through the installation position of the medium state detection sensor 70 until the rear edge is determined (t = t11 to t17). As shown in FIG. 5 (d), the distance is 170 mm, which is a bill length of 160 mm plus a distance of 10 mm for transporting the perforated medium 101 until the trailing edge is determined.

  On the other hand, the determination value is a value obtained by adding the distance at which the light transmission state is detected between the detection of the leading edge of the valuable medium and the determination of the trailing edge of the valuable medium to the medium reference length. Based on this, it is calculated as shown in FIG. In the perforated medium 101 in FIG. 5, the hole translucent distance 15 mm through which the perforated medium 101 is transported while the hole 201 is detected at the medium reference length of 160 mm (t = t13 to t14) and from the passage of the trailing edge. The determination value is 185 mm including the trailing edge determination translucent distance 10 mm through which the perforated medium 101 is conveyed until the trailing edge is determined (t = 16 to t17).

  As a result of calculating the actual measurement value and the determination value, when the actual measurement value and the determination value do not match, the medium state determination unit 82 determines that the detected valuable medium is not a separated valuable medium but a valuable medium with a hole. Judge that there is.

  FIG. 6 is a diagram for explaining a detection result when the separation medium 102 is detected by the medium state detection sensor 70. As shown in FIG. 6A, the separation medium 102 having a bill length of 160 mm is conveyed through the conveyance unit 14 in a state where the separation medium 102 is separated into two sheets of a 100 mm front paper piece 102a and a 60 mm rear paper piece 102b. When the leading edge of the valuable medium reaches the installation position of the medium state detection sensor 70, the medium state determination unit 82 of the valuable medium processing apparatus 1 indicates that the medium state detection sensor 70 is in a light-transmitting state, as shown in FIG. Is changed to a light-shielding state (t = t21). Thereafter, when the light shielding state continues while the front edge side 20 mm of the front paper piece 102 a passes (t = t 21 to t 22), the medium state determination unit 82 indicates that the change to the light shielding state previously detected is the separation medium 102. It is determined that this is due to the leading edge.

  In the valuable medium processing apparatus 1, the process of detecting the trailing edge of the valuable medium whose leading edge is determined is not performed during the mask range indicated by the broken line in FIG. Specifically, when the front edge of the front paper piece 102a passes through the installation position of the medium state detection sensor 70 (t = t21) and then passes further 20 mm, the front edge is determined (t = t22). From this point until 128 mm passes (t = t22 to t25), the valuable medium trailing edge detection process is not performed.

  When the trailing edge of the rear paper piece 102b reaches the installation position of the medium state detection sensor 70 after the mask range of the valuable medium has passed the installation position of the medium state detection sensor 70, the medium state determination unit 82 It is detected that 70 has changed from the light shielding state to the light transmitting state (t = t26). Thereafter, when the light transmission state continues while the separation medium 102 is transported a distance of 10 mm (t = t26 to t27), the medium state determination unit 82 determines that the change to the light transmission state detected earlier is separated. It is determined that it is due to the trailing edge of the medium 102.

  As shown in FIG. 6C, the medium state determination unit 82 passes the leading edge of the valuable medium in parallel with the monitoring process for detecting the leading and trailing edges of the valuable medium as shown in FIG. Then, the time during which the medium state detection sensor 70 is in a light-transmitting state is counted from when the trailing edge of the valuable medium is determined (t = t21 to t27). That is, the time during which the valuable medium cannot be detected by the medium state detection sensor 70 while the valuable medium passes through the position of the medium state detection sensor 70 is counted.

  In the case of the separation medium 102, as shown in FIG. 6C, after the trailing edge of the front paper piece 102a passes the installation position of the medium state detection sensor 70, the leading edge of the rear paper piece 102b detects the medium state. The period until reaching the installation position of the sensor 70 (t = t23 to t24) is detected as a translucent state. Further, even after the change from the light-shielding state to the light-transmitting state due to passage of the rear edge of the rear paper piece 102b, it is determined that the change is caused by the rear edge (t = 26 to t27). It is detected as a state.

  In this way, while the separation medium 102 shown in FIG. 6A passes the installation position of the medium state detection sensor 70, the medium state determination unit 82 causes the medium detection signal shown in FIG. And the translucent detection signal shown in FIG. The medium state determination unit 82 calculates an actual measurement value shown in FIG. 6D and a determination value shown in FIG.

  The actually measured value is a distance by which the separation medium 102 is transported after the leading edge of the separation medium 102 passes through the installation position of the medium state detection sensor 70 until the trailing edge is determined (t = t21 to t27). As shown in FIG. 6 (d), the paper length from the trailing edge of the front paper piece 102a to the rear paper piece is changed to the tag length 160mm of the separation medium 102 including the length 100mm of the front paper piece 102a and the length 60mm of the rear paper piece 102b. The hole translucent distance of 15 mm conveyed to the leading edge of the sheet 102b and the trailing edge determination translucent distance of 10 mm to which the separation medium 102 is conveyed until the trailing edge is determined are 185 mm.

  On the other hand, the determination value is a value obtained by adding the distance at which the light transmission state is detected between the detection of the leading edge of the valuable medium and the determination of the trailing edge of the valuable medium to the medium reference length. Calculation is performed as shown in FIG. In the separation medium 102 in FIG. 6, the light transmission state is detected from the rear edge of the front paper piece 102a to the front edge of the rear paper piece 102b at a medium reference length of 160 mm (t = t23 to t24). ) The hole translucent distance 15 mm through which the separation medium 102 is conveyed and the trailing edge determination translucent distance 10 mm through which the separation medium 102 is conveyed are added between the trailing edge passage and the trailing edge determination (t = 26 to t27). 185 mm is the judgment value.

  As a result of calculating the actual measurement value and the determination value in this way, when the actual measurement value and the determination value match and this value is larger than the value obtained by adding the trailing edge determination light transmission distance to the medium reference length, the medium state determination unit 82 determines that the detected valuable medium is a separated valuable medium.

  FIG. 7 summarizes the actual measurement values and the determination values shown in FIGS. The medium state determination unit 82 determines that the medium is a perforated medium when the actual measurement value and the determination value are different. If the actual measurement value and the determination value are the same value and this value is the same value as the medium reference length plus the trailing edge determination light transmission distance, it is determined that the medium is normal. If the actual measurement value and the determination value are the same value and this value is larger than the value obtained by adding the trailing edge determination light transmission distance to the medium reference length, the medium is determined to be a separation medium.

  FIG. 8 is a flowchart for explaining a method for distinguishing and detecting normal media, perforated media, and separation media. As described with reference to FIG. 3, when a slip is drawn from the second slip card storage unit 42 in the valuable medium processing apparatus 1, the medium state determination unit 82 refers to the storage medium information 91 of the storage unit 90. Then, the medium reference length of the fed out slip is acquired (step S11). Then, as described with reference to FIGS. 4 to 6, the medium state determination unit 82, based on the medium detection signal when the damaged sheet passes through the medium state detection sensor 70, has been fed out. An actual measurement value corresponding to the length is calculated (step S12). In addition, the medium state determination unit 82 is based on the medium reference length acquired from the storage unit 90 and the translucency detection signal when the damaged sheet passes through the medium state detection sensor 70. And a determination value corresponding to the sum of the light transmission distances (step S13).

  The medium state determination unit 82 compares the actual measurement value calculated in this way with the determination value (step S14), and when the actual measurement value and the determination value differ beyond a predetermined allowable range, that is, when they do not match. (Step S14; No), it is determined that this slip is a perforated slip (a perforated medium) (Step S16), and the process is terminated.

  On the other hand, when the measured value and the determination value match within the allowable range (step S14; Yes), the medium state determination unit 82 compares the determination value with the medium reference length (step S15) to determine the determination value. And the medium reference length are different from each other beyond a predetermined allowable range, that is, when they do not match (step S15; No), this loss ticket is a loss ticket (separation medium) separated into two or more sheets. It is determined that there is (step S17). When the determination value and the medium reference value match within the allowable range (step S15; Yes), the slipped sheet has no hole at the position where the medium state detection sensor 70 is installed and is separated into two or more sheets. It is determined that it is a non-performing card (normal medium) (step S18), and the process is terminated.

  In this embodiment, in order to show the difference in the detection result from the normal medium, the method for determining the actual medium by obtaining the actual measurement value and the determination value is shown. However, the present embodiment is not limited to this. If it is not detected that there is a translucent state from the leading edge to the trailing edge of the valuable medium, it is determined that the medium is a normal medium, and only for the valuable medium that is detected to be in the translucent state. In this aspect, it may be determined whether the translucent state is due to a hole in the valuable medium or due to separation of the valuable medium. Specifically, when the measured value and the judgment value are calculated only when it is detected that the light is transmitted from the leading edge of the medium to the trailing edge, and the measured value and the judgment value are different. Is a perforated medium, and if the measured value and the judgment value match, if it is determined that the medium is a separation medium, as described above, it is a normal medium, a perforated medium, or a separation medium. Can be detected separately.

  Further, in the present embodiment, the measured edge value and the determination value include the trailing edge determination translucent distance at which the valuable medium is transported after the trailing edge of the valuable medium is detected until the trailing edge is determined. Although this is added, the present embodiment is not limited to this, and only the detection result from the detection of the leading edge of the valuable medium to the detection of the trailing edge may be targeted. I do not care. Specifically, even when the trailing edge determination light transmission distance of 10 mm is not added in (d) and (e) of FIGS. 4 to 6, all the actual measurement values and determination values shown in FIG. It is possible to distinguish and detect whether the valuable medium is a normal medium, a perforated medium, or a separation medium by the above-described method.

  Further, in the present embodiment, an example in which the medium state detection sensor 70 is provided in one place of the transport unit 14 has been described, but the medium state detection sensor 70 may be provided in a plurality of places in the transport unit 14. In the present embodiment, as the medium state detection sensor 70, two sensors are arranged side by side in a direction perpendicular to the transport direction. However, the number of sensors is not limited to this and is one. It may be three or more. Moreover, the position where the sensor is arranged in the direction perpendicular to the transport direction in the transport unit 14 is appropriately set according to the structure and size of the transport unit 14 and the relationship between the bill size to be processed and the like.

  In the present embodiment, a transmission type sensor composed of a light projecting unit and a light receiving unit arranged to face each other is used as the medium state detection sensor 70 to detect changes in the light transmission state and the light shielding state due to the passage of the valuable medium. However, the structure of the medium state detection sensor 70 is not limited to this. For example, a reflection type sensor constituted by a light projecting unit that irradiates light toward the transport unit 14 and a light receiving unit that receives light emitted from the light projecting unit and reflected by the transport unit 14 is changed to a medium state. It may be used as the detection sensor 70. Even when the reflection type sensor is used, it is possible to detect the passage of the valuable medium based on the fact that the reflected light changes depending on the valuable medium conveyed through the conveyance unit 14.

  Moreover, although this embodiment demonstrated the example of a non-use ticket, the detection target of a conveyance state is not limited to this. Specifically, transport status is detected for various media such as cash vouchers such as regular tickets and gift certificates, forms such as slips and payment slips, and various paper sheets with perforations for cutting. can do.

  In the present embodiment, an example is shown in which the leading edge passage is determined at 20 mm from the leading edge passage of the valuable medium and the trailing edge passage is confirmed at 10 mm from the trailing edge passage, but is confirmed from the passage of the leading edge and the trailing edge. The distance (time) up to can be changed by each setting. Further, in the present embodiment, an example in which the distance corresponding to 80% of the bill length with a bill having a bill length of 160 mm is set as the mask range is shown, but the distance (time) set as the mask range can also be changed by setting. It has become.

  As described above, according to the valuable medium processing apparatus 1 according to the present embodiment, whether the medium state detection sensor 70 including the transmission type sensor is in the light transmitting state or the light shielding state is monitored, The actual value that is the distance the valuable medium has been transported between the time when the leading edge passes through the medium state detection sensor 70 and the time when the trailing edge is determined to have passed, and the translucent state while obtaining the actual value. Is compared with a determination value obtained by adding a medium reference length indicating the length of the valuable medium to be detected by the medium state detection sensor 70 to the distance detected by the medium state detection sensor 70. Whether it is an empty medium or a separation medium can be distinguished and detected.

  Since it is possible to accurately detect that the valuable medium is being transported in a separated state, it is possible to accurately detect the number of valuable media, etc. without erroneously detecting one valuable medium as two. It can be carried out. In addition, when it is detected that two or more valuable media have been separated, the processing continues without stopping the processing, and the valuable medium separated into two pieces is conveyed as a single valuable medium to a predetermined transport destination. can do.

  Further, since a valuable medium that is separated into two or more sheets and requires repair work for joining them can be conveyed to a predetermined conveyance destination and the conveyance destination can be notified, for example, only bills that do not require repair The banknotes that need repair can be easily repaired together.

  As described above, the valuable medium processing apparatus according to the present invention is useful for determining whether or not the valuable medium conveyed in the apparatus is separated into two or more.

DESCRIPTION OF SYMBOLS 1 Valuable-medium processing apparatus 10 Deposit port 12 Feeding mechanism 14, 14a-14d Conveying part 14p Connection location 16 Image acquisition part 18 Door 20 Temporary holding | maintenance part 30, 30a-30c Check storage part 40 First loss ticket storage part 42 Ticket storage unit 50, 50a to 50d New ticket storage unit 52a to 52d Delivery mechanism 60 Withdrawal port 61a Shutter 61b Extraction detection unit 62 Impeller 64 Simple identification unit 70 Medium state detection sensor 80 Control unit 81 Transport control unit 82 Medium state determination Unit 83 notification unit 90 storage unit

Claims (7)

A transport unit for transporting valuable media;
A medium state detection sensor for detecting passage of a valuable medium transported through the transport unit;
1 based on a signal that detects the passage of the valuable medium by the medium state detection sensor and a signal that indicates that the valuable medium cannot be detected by the medium state detection sensor while the valuable medium is passing. A medium state determination unit that determines whether or not one sheet of valuable medium is conveyed in a state of being separated into two or more sheets;
A valuable medium processing apparatus comprising: a conveyance control unit configured to convey a valuable medium conveyed in a state of being separated into two or more sheets based on a determination result by the medium state determination unit to a predetermined conveyance destination. The medium state determination unit
From the medium state detection sensor, a detection result indicating that the valuable medium cannot be detected after the leading edge of the valuable medium passes through until the trailing edge passes, and from the measured leading edge. When a detection result indicating that the length to the trailing edge is longer than the actual length of the valuable medium is obtained,
2. The valuable medium processing apparatus according to claim 1, wherein it is determined that one valuable medium is conveyed in a state of being separated into two or more sheets. The medium state determination unit
An actual measurement value obtained by detecting a valuable medium by the medium state detection sensor;
A medium reference length indicating an actual length of the valuable medium to be detected when the valuable medium passes through the medium state detection sensor;
Based on the light transmission distance that has detected a light transmission state in which the valuable medium is not detected while the passage of the valuable medium is detected by the medium state detection sensor,
3. The valuable medium processing apparatus according to claim 1, wherein it is determined whether one valuable medium is conveyed in a state of being separated into two or more sheets. The medium state determination unit
When the determination value obtained by adding the light transmission distance to the medium reference length shows a value that is substantially the same as the actual measurement value and that this value is longer than the medium reference length,
4. The valuable medium processing apparatus according to claim 3, wherein it is determined that one valuable medium is conveyed in a state of being separated into two or more sheets.   The medium state determination unit determines that the valuable medium is transported in a holed state when the determination value and the actual measurement value are different from each other. The valuable medium processing apparatus described.   The medium state determination unit does not perform a process of detecting a trailing edge of the valuable medium while an area previously set as a mask range on the valuable medium passes through the medium state detection sensor. Item 6. The valuable medium processing device according to any one of Items 1 to 5.   The valuable medium according to any one of claims 1 to 6, further comprising a notification unit that notifies a conveyance destination of the valuable medium that is determined to be conveyed in a state of being separated into two or more sheets. Processing equipment.

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