Patent Publication Number: US-2021183196-A1

Title: Paper sheet processing device and paper sheet processing system

Description:
TECHNICAL FIELD 
     The present invention relates to a sheet processing apparatus that processes a sheet, and a sheet processing system that comprises such a sheet processing apparatus. 
     BACKGROUND ART 
     Conventionally, a sheet processing apparatus that processes a specific banknote such as a counterfeit note by distinguishing the specific banknote from other banknotes has been commercialized. 
     Such a sheet processing apparatus, as disclosed in Patent Literature (hereinafter, referred to as “PTL”)  1 , for example, distinguishes and processes banknotes that should be distinguished, by using a serial number list that is a list of serial numbers attached to the banknotes that should be distinguished. 
     CITATION LIST 
     Patent Literature 
     PTL 1 
     Japanese Patent Application Laid-Open No. 2013-218420 
     SUMMARY OF INVENTION 
     Technical Problem 
     An object of the present invention is to efficiently perform sheet processing that is performed by distinguishing sheets that should be distinguished. 
     Solution to Problem 
     A sheet processing apparatus according to the present invention comprises: a recognition unit that recognizes a serial number attached to a sheet; and a control section that executes determination of the sheet based on the serial number recognized by the recognition unit, and a serial number list including a plurality of the serial numbers and additional information associated with at least one of the plurality of serial numbers. 
     Advantageous Effects of Invention 
     According to the present invention, it is possible to efficiently perform sheet processing that is performed by distinguishing sheets that should be distinguished. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a schematic diagram of a sheet processing apparatus according to an embodiment; 
         FIG. 2A  is an example of a serial number list; 
         FIG. 2B  is another example of the serial number list; 
         FIG. 3  is still another example of the serial number list; 
         FIG. 4  is yet another example of the serial number list; 
         FIG. 5  is further another example of the serial number list; 
         FIG. 6  is a schematic diagram of a banknote processing system; 
         FIG. 7A  is an example of the serial number list before a version upgrade; and 
         FIG. 7B  is an example of the serial number list after the version upgrade. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     Hereinafter, the present invention will be described in detail with reference to the drawings. Note that, in the following description, the “front” of a sheet processing apparatus means a side of an operator who performs at least one operation of sheet input operation and sheet discharge operation through an opening section described later, and the “rear” of the sheet processing apparatus means the opposite side thereto. Further, the “left” of the sheet processing apparatus means the left side when viewed from the operator, and the “right” of the sheet processing apparatus means the right side when viewed from the operator. 
     Further, in the present specification, a “normal banknote” refers to a banknote that can be recognized by a recognition unit described later, and a “rejected banknote” refers to a banknote that cannot be recognized by the recognition unit. A “fit note” refers to, among normal banknotes, a banknote with relatively little stain, tear, and/or the like, and an “unfit note” refers to, among normal banknotes, a banknote with a relatively large amount of stain, tear, and/or the like. 
     Further, in the present specification, a “counterfeit note” refers to, among normal banknotes, a banknote (precisely, a piece of paper that imitates but is not a banknote) that is not issued by a legitimate issuing institution. A “genuine note” refers to, among normal banknotes, a banknote that is issued by a legitimate issuing institution. A “stolen note” refers to, among genuine notes, a banknote that is stolen or is handed over as a ransom. 
       FIG. 1  illustrates a banknote processing apparatus  1  as a sheet processing apparatus according to Embodiment 1 of the present invention. In  FIG. 1 , the left side is a front portion of the banknote processing apparatus  1 , and the right side is a rear portion of the banknote processing apparatus  1 . 
     The banknote processing apparatus  1  is a banknote depositing and dispensing machine to/from which a banknote as a sheet is deposited/withdrawn. The banknote processing apparatus  1  comprises a processing section  10 , and a storage compartment  20  provided below the processing section  10 . 
     The processing section  10  comprises an upper housing  11 . An inlet (opening)  12   a , an outlet (opening)  13   a , and a reject port (opening)  14   a  are provided on an upper front portion of the upper housing  11 . A transport unit  15 , a recognition unit  16 , a temporary storage section  17 , a first reject box  18 , and a control section  19  are disposed in the upper housing  11 . 
     A banknote feeding mechanism (not illustrated) that feeds out banknotes one by one to the transport unit  15  in a predetermined cycle is disposed near the inlet  12   a . The inlet  12   a  and the banknote feeding mechanism configure a depositing section  12 . 
     A stacking mechanism (not illustrated) that stacks the banknotes is disposed near the outlet  13   a . The outlet  13   a  and the stacking mechanism configure a withdrawal section  13 . 
     A stacking mechanism (not illustrated) that stacks the banknotes is disposed near the reject port  14   a . The reject port  14   a  and the stacking mechanism configure a reject section  14 . 
     Note that, in an upper front portion of the processing section  10 , a depositing and withdrawal section may be provided, by providing an opening through which both the depositing and withdrawal of the banknotes are performed, and by disposing a banknote feeding mechanism and a stacking mechanism around the opening. In the present specification, the depositing section  12 , the withdrawal section  13 , the depositing and withdrawal section, and the reject section  14  are collectively referred to as the opening section. 
     The transport unit  15  transports the banknotes at a predetermined transport speed. The transport unit  15  is configured with a belt mechanism and/or a roller mechanism for transporting the banknotes. The transport unit  15  is configured with a loop-shaped transport path that enables the banknotes to be transported bi-directionally, and a plurality of diversion paths that are diverged from the loop-shaped transport path. Each diversion path connects the loop-shaped transport path to the depositing section  12 , the withdrawal section  13 , and the reject section  14 , respectively, as well as connects the loop-shaped transport path to the temporary storage section  17  described later, the first reject box  18  described later, a second reject box  24  described later, a first storage unit  22  described later, and a second storage unit  23  described later, respectively. 
     The recognition unit  16  comprises a sensor such as an image sensor, an optical sensor and a magnetic sensor, and recognizes authenticity, denomination, fitness, and/or the like of the banknotes transported by the transport unit  15 . As described later, the recognition unit  16  performs two types of recognition of primary recognition and secondary recognition. 
     The temporary storage section  17  temporarily stores the banknotes. The temporary storage section  17  takes in and stores the banknotes one by one, and feeds out the stored banknotes one by one. The temporary storage section  17  can be configured with, for example, a winding-type storage unit in which a plurality of banknotes are stored in a state of being wound around a rotating body. 
     The first reject box  18  is a container, and stores a banknote recognized by the recognition unit  16  as a predetermined banknote (for example, a counterfeit note) that should be processed by distinguishing the banknote from other banknotes. 
     The control section  19  comprises at least a CPU and a memory. The control section  19  integrally controls the banknote processing apparatus  1  by controlling each unit and section configuring the banknote processing apparatus  1  such that the banknotes are transported to predetermined positions through the transport unit  15 . The memory records a program that is executed by the CPU for integrally controlling the banknote processing apparatus  1 , a serial number list that is a list of serial numbers attached to banknotes that should be distinguished and processed, and/or the like. 
     The storage compartment  20  comprises a lower housing  21 . 
     The first storage unit  22  is disposed on a side of a front portion in the lower housing  21 . The first storage unit  22  is a lamination-type storage unit in which a plurality of banknotes are stored in a state of being laminated. The first storage unit  22  is connected to a diversion path of the transport unit  15 . The first storage unit  22  can also be used as a collection section in which banknotes to be collected from the banknote processing apparatus  1  are stored. 
     Eight of the second storage units  23  are disposed on a side of a rear portion in the lower housing  21 . The second storage unit  23  is a winding-type storage unit in which a plurality of banknotes are stored in a state of being wound around a rotating body. Each of the second storage units  23  is connected to a diversion path of the transport unit  15 . 
     The second reject box  24  is disposed in the lower housing  21 , for example, between the first storage unit  22  and the second storage unit  23 . The second reject box  24  is a container, and stores a banknote recognized by the recognition unit  16  as a predetermined banknote (for example, a counterfeit note) that should be processed by distinguishing the banknote from other banknotes. The second reject box  24  is connected to a diversion path of the transport unit  15 . 
     Subsequently, a description will be given of the serial number list that the banknote processing apparatus  1  according to the present embodiment uses when performing banknote processing. The serial number list represents structured data that can be processed by e.g. the CPU that the control section  19  comprises, and is shown in a tabular form as illustrated in  FIG. 2A , for example, by processing the data with a predetermined program. Hereinafter, the data and the tabular form shown by processing the data are collectively referred to as the serial number list for convenience. 
     Note that, in the following description, the serial number list is recorded in the memory that the control section  19  comprises, but may be recorded in an external storage apparatus capable of communicating with the banknote processing apparatus  1 . In this case, the banknote processing apparatus  1  is capable of performing banknote processing by receiving the serial number list from the external storage apparatus and using the received serial number list. 
       FIG. 2A  illustrates a serial number list  100  that is an example of the serial number list. The serial number lists  100  is configured with a column  101  and a column  102 . 
     The column  101  lists serial numbers attached to banknotes that need or may need to be distinguished and processed. The banknotes that need to be distinguished and processed are, for example, counterfeit notes. 
     The column  102  lists additional information associated with the serial numbers listed in the column  101 . The additional information listed in the column  102  is additional information on counterfeit note or on stolen note. 
     The banknote processing apparatus  1  uses the serial number list  100  as such to execute depositing processing as described below, for example. Note that, in the following description, it is assumed that the secondary recognition is performed after the primary recognition, but the order of these may be reversed. 
     First, the depositing section  12  takes in a banknote. The transport unit  15  transports the taken-in banknote to the recognition unit  16 . The recognition unit  16  and the control section  19  perform the primary recognition for the banknote. The primary recognition represents processing in which the recognition unit  16  reads (recognizes) various information from the banknote by using the sensor, and the control section  19  uses the various information to determine the authenticity, denomination, fitness, and/or the like of the banknote. 
     A banknote whose type cannot be determined in the primary recognition is determined as a rejected banknote regardless of a result of the secondary recognition described later, and is transported to, for example, the reject section  14 . In a case where the primary recognition is performed before the secondary recognition described later, the secondary recognition for the banknote determined as a rejected banknote in the primary recognition may not be performed. A banknote determined as a normal banknote in the primary recognition is subjected to comprehensive banknote determination that is performed together with the result of the secondary recognition. 
     The secondary recognition is performed following the primary recognition. The secondary recognition represents processing in which the recognition unit  16  reads (recognizes) a serial number of a banknote by using an image sensor or the like, and the control section  19  determines whether or not the banknote is a banknote to be distinguished based on the read serial number and the serial number list  100  recorded in the memory of the control section  19 . Specifically, in a case where the additional information is associated with the serial number which coincides with the serial number read by the recognition unit  16 , in the column  101 , the control section  19  determines that the banknote corresponds to the additional information and should be processed by distinguishing the banknote from other banknotes. 
     As a result of the secondary recognition, banknotes for which it is determined that serial numbers associated with the additional information “COUNTERFEIT NOTE” or “STOLEN NOTE” are attached to the banknotes, that is, banknotes determined as counterfeit notes or stolen notes are processed by distinguishing the banknotes from other banknotes even when it is not determined as such in the primary recognition. That is, these banknotes are transported to, for example, the first reject box  18  or the second reject box  24 , and are stored by distinguishing the banknotes from other banknotes. 
     Note that, a banknote which is determined as a counterfeit note in the primary recognition and for which it is determined in the secondary recognition that a serial number associated with the additional information “STOLEN NOTE” is attached to the banknote is comprehensively determined as a stolen note (not a counterfeit note, but a genuine note). (That is, the result of the secondary recognition takes precedence over the result of the primary recognition.) A banknote thus determined is transported to the first reject box  18  or the second reject box  24  that is configured to store stolen notes so that the banknote can be stored by distinguishing the banknote from other banknotes. 
     A normal banknote that is not determined as a banknote to be distinguished in the secondary recognition is determined as a genuine note or a counterfeit note based on the result of the primary recognition. Banknotes which are determined as genuine notes in the primary recognition and which are not determined as banknotes to be distinguished in the secondary recognition are comprehensively determined as genuine notes, are physically divided by type of denomination or the like by the transport unit  15 , and are transported to and stored in the first storage unit  22  or the second storage unit  23 . Banknotes which are determined as counterfeit notes in the primary recognition and which are not determined as banknotes to be distinguished in the secondary recognition are comprehensively determined as counterfeit notes. 
     The banknote processing apparatus  1  according to the present embodiment is capable of distinguishing and processing two types of banknotes that should be distinguished, namely counterfeit notes and stolen notes, not by using two serial number lists of a serial number list relating to counterfeit notes and a serial number list relating to stolen notes, but by using one serial number list that is the serial number list  100 . 
     Accordingly, banknote processing can be performed conveniently and efficiently. 
     Further, banknotes regarded as counterfeit notes and banknotes regarded as stolen notes may be physically divided and stored. For example, the banknotes regarded as counterfeit notes may be stored in the first reject box  18 , and the banknotes regarded as stolen notes may be stored in the second reject box  24 . By separating the banknotes regarded as counterfeit notes and the banknotes regarded as stolen notes in advance in a depositing processing stage, the banknotes regarded as counterfeit notes and the banknotes regarded as stolen notes can be handled efficiently, respectively, in a case where subsequent ways to handle counterfeit notes and stolen notes are different from each other. 
     Note that, although the serial number list  100  illustrated in  FIG. 2A  comprises two types of additional information, namely “COUNTERFEIT NOTE” and “STOLEN NOTE”, there may be one type of additional information that is clearly indicated as in a serial number list  200  illustrated in  FIG. 2B , for example. 
     The serial number list  200  illustrated in  FIG. 2B  is configured with a column  201  and a column  202 . The serial number list  200  can be used in at least two ways. 
     One way to use the serial number list  200  is a case where only serial numbers relating to counterfeit notes are listed in the column  201 . In this case, the serial numbers (AAA12345, BBB23456, and CCC34567) whose corresponding boxes in the column  202  are blank are serial numbers relating to counterfeit notes. Further, the serial number (DDD45678) whose corresponding box in the column  202  comprises a description “STOLEN NOTE” is a serial number relating to a counterfeit note and a stolen note at the same time. 
     Another way to use the serial number list  200  is a case where serial numbers relating to counterfeit notes and serial numbers relating to stolen notes are listed in the column  201 . In this case, the serial numbers whose corresponding boxes in the column  202  are blank are serial numbers relating to counterfeit notes. Further, the serial number whose corresponding box in the column  202  comprises a description “STOLEN NOTE” is a serial number relating to a stolen note. 
     Whichever way is adopted, the serial number list  200  substantially comprises two types of additional information, namely “COUNTERFEIT NOTE” and “STOLEN NOTE”, so that banknote processing can be performed conveniently and efficiently in the same manner as in the case where the serial number list  100  illustrated in  FIG. 2A  is used. 
     Note that, the primary recognition and the secondary recognition as described above may be performed during withdrawal processing in which the banknotes stored in the first storage unit  22  or the second storage unit  23  are withdrawn, or during reconciliation processing in which the banknotes stored in the above-mentioned storage units are reconciled. Alternatively, the primary recognition and the secondary recognition as described above may be performed during collection processing in which the banknotes stored in the banknote processing apparatus  1  are collected. 
     Subsequently, an embodiment of banknote processing using another serial number list will be described.  FIG. 3  illustrates a serial number list  300  that is another example of the serial number list. The serial number list  300  is configured with a column  301 , a column  302 , a column  303 , and a column  304 . 
     The column  301  lists serial numbers attached to banknotes that need or may need to be distinguished and processed. The banknotes that need to be distinguished and processed are, for example, counterfeit notes. 
     The column  302  lists additional information associated with the serial numbers listed in the column  301 . The additional information listed in the column  302  is additional information on counterfeit note or stolen note. 
     The column  303  lists additional information associated with the serial numbers listed in the column  301 . The additional information listed in the column  303  is additional information on certainty of counterfeit note. Additional information “1” in the column  303  is information indicating that a banknote to which a serial number corresponding to the additional information “1” is attached is of Counterfeit Note Level 1, that is, is possibly a counterfeit note. Additional information “2” in the column  303  is information indicating that a banknote to which a serial number corresponding to the additional information “2” is attached is of Counterfeit Note Level 2, that is, is more possibly a counterfeit note than the banknote of Counterfeit Note Level 1. Additional information “3” in the column  303  is information indicating that a banknote to which a serial number corresponding to the additional information “3” is attached is of Counterfeit Note Level 3, that is, is much more possibly a counterfeit note than the banknote of Counterfeit Note Level 2, and can be concluded as a counterfeit note. 
     The column  304  lists additional information associated with the serial numbers listed in the column  301 . The additional information listed in the column  304  is additional information on types of stolen note. Additional information “1” in the column  304  is information indicating that a banknote to which a serial number corresponding to the additional information “1” is attached is a stolen note to which a theft mark is not attached. Additional information “2” in the column  304  is information indicating that a banknote to which a serial number corresponding to the additional information “2” is attached is a stolen note to which the theft mark is attached. Additional information “3” in the column  304  is information indicating that a banknote to which a serial number corresponding to the additional information “3” is attached is a stolen note used as a ransom. For example, a banknote processing apparatus such as an automated teller machine (ATM) may record serial numbers of banknotes stored in the inside of the banknote processing apparatus. In a case where a banknote is stolen from an ATM as such, the serial number of the stolen banknote can be specified so that the additional information “1” can be associated with the specified serial number. The same applies to a stolen note used as a ransom. Further, there is a banknote processing apparatus that records serial numbers of banknotes stored in the inside of the banknote processing apparatus and has a function to detect an attempt of unauthorized access to a banknote stored in the inside of the banknote processing apparatus and to attach the theft mark to the banknote. It is possible to specify a serial number of a banknote that is stolen or attempted to be stolen from the banknote processing apparatus as such and to associate the additional information “2” with the specified serial number. An example of commercialized theft marks is a theft mark in which special ink called dye ink adheres to a banknote. 
     By performing banknote processing using the serial number list  300  as such, it is possible to distinguish banknotes, which should be distinguished, into much more types as needed so that the banknotes can be processed by physically dividing the banknotes as illustrated in Table 1, for example. 
     
       
         
           
               
               
             
               
                   
                 TABLE 1 
               
             
            
               
                   
                   
               
               
                   
                 Transport destination 
               
            
           
           
               
               
               
               
            
               
                 Recognition Result 
                 Pattern 1 
                 Pattern 2 
                 Pattern 3 
               
               
                   
               
               
                 Genuine note 
                 Each storage unit 
                 Each storage unit 
                 Each storage unit 
               
               
                   
                   
                 (second storage unit) 
               
               
                 Counterfeit Note Level 1 
                 Reject section 
                 Collection storage 
                 Second reject box 
               
               
                   
                   
                 compartment (first 
               
               
                   
                   
                 storage unit) 
               
               
                 Counterfeit Note Level 2 
                 Reject section 
                 First reject box 
                 Second reject box 
               
               
                 Counterfeit Note Level 3 
                 Reject section 
                 First reject box 
                 Second reject box 
               
               
                 Stolen note to which dye 
                 First reject box 
                 First reject box 
                 First reject box 
               
               
                 ink adheres 
               
               
                 Stolen note to which no 
                 First reject box 
                 First reject box 
                 First reject box 
               
               
                 dye ink adheres 
               
               
                 Stolen note used as 
                 First reject box 
                 First reject box 
                 First reject box 
               
               
                 ransom 
               
               
                 Rejected note 
                 Reject section 
                 Reject section 
                 Reject section 
               
               
                   
               
            
           
         
       
     
     Table 1 illustrates ways to handle the banknotes in three patterns. In Pattern 1, a genuine note is stored in the first storage unit  22  or the second storage unit  23  that is predetermined depending on denomination and/or the like. Banknotes determined as Counterfeit Note Level 1, Counterfeit Note Level 2, and Counterfeit Note Level 3 are discharged from the reject section  14 . Banknotes determined as various stolen notes are stored in the first reject box  18 . A banknote determined as a rejected banknote is discharged from the reject section  14 . 
     According to Pattern 1, while a banknote having a slightest chance of being a counterfeit note is returned to the person who has deposited the banknote, it can be ensured that a stolen note is taken in the banknote processing apparatus  1  and is kept therein by physically distinguishing the stolen note from a genuine note. 
     In Pattern 2, a genuine note is stored in a predetermined storage unit (for example, the second storage unit  23 ) depending on denomination and/or the like. A banknote determined as Counterfeit Note Level 1 is stored in a collection storage compartment in which banknotes that should be collected are stored (for example, the first storage unit  22 ). Banknotes determined as Counterfeit Note Level 2 and Counterfeit Note Level 3 are stored in the first reject box  18 . Banknotes determined as various stolen notes are stored in the first reject box  18 . A banknote determined as a rejected banknote is discharged from the reject section  14 . 
     According to Pattern 2, a banknote that is possibly a counterfeit note, but with low accuracy, is allowed to be deposited as a genuine note and is then withdrawn during depositing processing so that the banknote can be prevented from being transferred to the hands of a person other than the person who has deposited the banknote. Further, it can be ensured that that a banknote that is a counterfeit note with high accuracy and various stolen notes are taken in the banknote processing apparatus  1 , and are kept therein by physically distinguishing the banknote and the various stolen notes from genuine notes. 
     In Pattern 3, a genuine note is stored in the first storage unit  22  or the second storage unit  23  that is predetermined depending on denomination and/or the like. Banknotes determined as Counterfeit Note Level 1, Counterfeit Note Level 2, and Counterfeit Note Level 3 are stored in the second reject box  24 . Banknotes determined as various stolen notes are stored in the first reject box  18 . A banknote determined as a rejected banknote is discharged from the reject section  14 . 
     According to Pattern 3, while a banknote having a slightest chance of being a counterfeit note and various stolen notes are physically distinguished, it can be ensured that the banknote and the various stolen notes are taken in the banknote processing apparatus  1 , and are kept therein by distinguishing the banknote and the various stolen notes from genuine notes. 
     Subsequently, an embodiment of banknote processing using another serial number list will be described.  FIG. 4  illustrates a serial number list  400  that is an example of the serial number list. The serial number list  400  is configured with a column  401 , a column  402 , and a column  403 . 
     The column  401  lists serial numbers attached to banknotes that need or may need to be distinguished and processed. The banknotes that need to be distinguished and processed are, for example, counterfeit notes. 
     The column  402  lists additional information associated with the serial numbers listed in the column  401 . The additional information listed in the column  402  is additional information on types of currencies to which banknotes belong. 
     The column  403  lists additional information associated with the serial numbers listed in the column  401 . The additional information listed in the column  403  is additional information on institutions (for example, banks) that issue the banknotes. 
     By using the serial number list  400  as such, the banknote processing apparatus  1  is capable of performing the following banknote processing. For example, a case is supposed where the serial numbers listed in the column  401  are serial numbers attached to counterfeit notes. In this case, when banknotes to which serial numbers associated with additional information “COUNTRY A” in the column  402  are attached are processed by distinguishing the banknotes from other banknotes, the counterfeit notes forged by imitating banknotes of Country A can be processed by distinguishing the banknotes from other banknotes. 
     Alternatively, when banknotes to which serial numbers associated with additional information “BANK X” in the column  403  are attached are processed by distinguishing the banknotes from other banknotes, the counterfeit notes forged by imitating banknotes issued by Bank X can be processed by distinguishing the banknotes from other banknotes. 
     Subsequently, an embodiment of banknote processing using further another serial number list will be described.  FIG. 5  illustrates a serial number list  500  that is an example of the serial number list. The serial number list  500  is configured with a column  501 , a column  502 , and a column  503 . 
     The column  501  lists serial numbers attached to banknotes that need or may need to be distinguished and processed. The banknotes that need to be distinguished and processed are, for example, counterfeit notes. 
     The column  502  lists additional information associated with the serial numbers listed in the column  501 . The additional information listed in the column  502  is additional information on types of currencies to which banknotes belong. 
     The column  503  lists additional information indicating whether or not banknotes to which the serial numbers listed in the column  501  are attached needs to be distinguished. There is a case where all the serial numbers comprised in the serial number list  500  do not need to be distinguished depending on conditions of using the banknote processing apparatus  1 . For example, information “NECESSARY” is attached to boxes corresponding to serial numbers that need to be distinguished in the column  503 , and information “UNNECESSARY” is attached to boxes corresponding to serial numbers that do not need to be distinguished in the column  503 . Serial numbers whose additional information in the column  503  is “UNNECESSARY” are not subjected to matching processing with the read serial numbers in the secondary recognition. Note that, when needed, all the serial numbers comprised in the serial number list  500  can be regarded as unnecessary to be distinguished. 
     As a result of a specific serial number listed in the column  501  being directly designated, the banknote processing apparatus  1  is capable of determining whether or not the specific serial number in the serial number list  500  is attached to a banknote. Conversely, it is also possible not to allow the banknote processing apparatus  1  to determine whether or not the directly designated specific serial number is attached to a banknote. 
     Further, as a result of a specific serial number listed in the column  501  being designated based on other additional information, the banknote processing apparatus  1  is capable of determining whether or not the specific serial number in the serial number list  500  is attached to a banknote. Conversely, it is also possible not to allow the banknote processing apparatus  1  to determine whether or not the specific serial number designated based on the other additional information is attached to a banknote. Based on the serial number list  500 , it is determined whether or not a serial number of a banknote of Country A is attached to a banknote. Conversely, no determination is performed as to whether or not a serial number of a banknote of Country B is attached to a banknote. 
     As is apparent from the above, the banknote processing apparatus  1  is capable of determining whether or not a specific serial number comprised in a serial number list is attached to a banknote. In other words, the banknote processing apparatus  1  is capable of setting whether or not the secondary recognition for a specific serial number comprised in a serial number list is performed. 
     Further, the banknote processing apparatus  1  is capable of recording a plurality of serial number lists. In this case, it is possible to set whether or not the secondary recognition is performed for each serial number list. As a result of a specific serial number list in a plurality of serial number lists being directly designated, the banknote processing apparatus  1  is capable of performing the secondary recognition based on the specific serial number list. Conversely, it is also possible not to allow banknote processing apparatus  1  to perform the secondary recognition based on the directly designated specific serial number list. 
     Further, as a result of a specific serial number list in a plurality of serial number lists being designated based on the other additional information, the banknote processing apparatus  1  is capable of performing the secondary recognition based on the specific serial number list. Conversely, it is also possible not to allow the banknote processing apparatus  1  to perform the secondary recognition based on the specific serial number designated based on the other additional information. For example, in a case where the additional information in a serial number list comprises “WORKER” and/or “LOCATION WHERE A BANKNOTE PROCESSING APPARATUS IS INSTALLED”, both the additional information being described later, a serial number list that is used for the secondary recognition or a serial number list that is not used for the secondary recognition may be specified based on the additional information of “WORKER” and/or “LOCATION WHERE A BANKNOTE PROCESSING APPARATUS IS INSTALLED”. 
     Note that, the additional information that each of the serial number lists  100  to  500  comprises may be the following additional information instead of or in addition to the additional information described so far. It is needless to say that the following additional information is exemplary. 
     (1) New and Old Series Banknotes 
     In a case where information on old or new series banknotes (an old series banknote before a design change or a new series banknote after the design change) is comprised as the additional information, the banknotes can be processed by distinguishing the banknotes between old and new series banknotes. For example, the banknotes to be processed can be only new series banknotes or conversely only old series banknotes. Alternatively, only in respect of old series banknotes, for example, the banknotes can be processed by distinguishing the banknotes as to whether or not the banknotes are counterfeit notes. 
     (2) Worker 
     In a case where information on a worker who operates the banknote processing apparatus  1  to execute banknote processing work is comprised as the additional information, the banknotes to be distinguished and processed can be changed depending on the worker. For example, in a case where the banknote processing apparatus  1  is installed in a bank and both a teller and a store customer may operate the banknote processing apparatus  1 , a banknote can be processed by distinguishing the banknote as to whether or not the banknote is a counterfeit note, only when the store customer works with the banknote processing apparatus  1 . Note that, the information on who operates the banknote processing apparatus  1  can be obtained from e.g. an ID that is input at the time of starting the operation. 
     (3) Location where a Banknote Processing Apparatus is Installed 
     In a case where information on a location where the banknote processing apparatus  1  is installed is comprised as the additional information, the banknotes to be distinguished and processed can be changed depending on the installation location. For example, a banknote can be processed by distinguishing the banknote as to whether or not the banknote is a counterfeit note, only when the banknote processing apparatus  1  is installed in a retail store and may be operated by an unspecified number of people. 
     Note that, there may be several types of serial number lists. For example, a serial number list that relates to counterfeit notes forged in one region may be created and used in the one region, and a serial number list that relates to counterfeit notes forged in another region may be created and used in the other region. Even in such a case, a counterfeit note may be brought from the one area where the counterfeit note is forged to the other area for use. 
     Accordingly, to distinguish and process every counterfeit note, the banknote processing apparatus  1  needs to cause every serial number list to be recorded in the memory that the control section  19  comprises. However, the more serial number lists there are, the more difficult it is to cause every serial number list to be recorded in the memory that the banknote processing apparatus  1  comprises. Further, the contents of the same serial number list may change due to a version upgrade. It is even more difficult to cause up-to-date versions of every serial number list to be recorded in the memory that one banknote processing apparatus, namely the banknote processing apparatus  1 , comprises. 
     Such a disadvantage can be eliminated by a banknote processing system  2  illustrated in  FIG. 6 . The banknote processing system  2  is configured with four banknote processing apparatuses  1 A to  1 D that are connected through a network  3 . Each of the banknote processing apparatuses  1 A to  1 D is capable of communicating with each other through the network  3 . Each of the banknote processing apparatuses  1 A to  1 D is configured in the same manner as the banknote processing apparatus  1  described above. That is, the banknote processing apparatuses  1 A to  1 D each comprise recognition units  16 A to  16 D, temporary storage sections  17 A to  17 D, control sections  19 A to  19 D and the like, respectively. Note that, it is needless to say that the number of banknote processing apparatuses that configure the banknote processing system  2  may be any number as long as the number is two or more. 
     The control section  19 A that the banknote processing apparatus  1 A comprises records a serial number list  100 A in a memory of the control section  19 A. The configuration and contents of the serial number list  100 A are the same as those of the serial number list  100  described above. 
     The control section  19 B that the banknote processing apparatus  1 B comprises records a serial number list  100 B in a memory of the control section  19 B. The configuration of the serial number list  100 B is the same as that of the serial number list  100  described above. However, serial numbers listed in the serial number list  100 B differ from those listed in the serial number list  100 . 
     The control section  19 C that the banknote processing apparatus  1 C comprises records a serial number list  100 C in a memory of the control section  19 C. The configuration of the serial number list  100 C is the same as that of the serial number list  100  described above. However, serial numbers listed in the serial number list  100 C differ from those listed in the serial number list  100 . 
     The control section  19 D that the banknote processing apparatus  1 D comprises does not record any serial number list in a memory of the control section  19 D. 
     Note that, the serial numbers that each of the serial number lists  100 A to  100 C comprises may be completely different from each other or may partially overlap with each other. Further, additional information that each of the serial number lists  100 A to  100 C comprises may be the same each other or different from each other. Further, each of the serial number lists  100 A to  100 C may also be the same serial number list with different versions. Note that, a version of a serial number list will be described later. 
     In the banknote processing system configured as described above, in a case where the banknote processing apparatus  1 A processes a banknote, the recognition unit  16 A and the control section  19 A that the banknote processing apparatus  1 A comprises perform the primary recognition. Then the recognition unit  16 A and the control section  19 A perform the secondary recognition. In this case, a serial number read by the recognition unit  16 A is sent to the banknote processing apparatus  1 B and the banknote processing apparatus  1 C through the networks  3 . 
     Upon reception of the serial number, the banknote processing apparatus  1 B uses the serial number to perform recognition processing similar to the secondary recognition. That is, the control section  19 B that the banknote processing apparatus  1 B comprises performs matching whether or not the received serial number is comprised in the serial number list  100 B recorded in the memory that the control section  19 B comprises. That is, it is determined whether or not the banknote to which the received serial number is attached is a banknote to be distinguished. 
     In a case where the received serial number is comprised in the serial number list  100 B, the banknote processing apparatus  1 B sends information on the fact that the received serial number is comprised in the serial number list  100 B, and on the additional information associated with the serial number to the banknote processing apparatus  1 A. In a case where the received serial number is not comprised in the serial number list  100 B, the banknote processing apparatus  1 B sends information on the fact that the received serial number is not comprised in the serial number list  100 B to the banknote processing apparatus  1 A. 
     The banknote processing apparatus  1 C also functions in the same manner as the banknote processing apparatus  1 B by using the serial number list  100 C. 
     The banknote processing apparatus  1 A performs final determination as to whether or not the recognized banknote needs to be processed by distinguishing the banknote from other banknotes based on the result of the secondary recognition performed by the banknote processing apparatus  1 A itself, the information received from the banknote processing apparatus  1 B, and the information received from the banknote processing apparatus  1 C. How the banknote is processed as a result of the determination is as described above with respect to the banknote processing apparatus  1 . 
     Thus, according to the banknote processing system  2 , it is possible to efficiently perform determination processing by dispersing the determination processing using a plurality of the banknote processing apparatuses  1 A to  1 C. 
     Note that, in a case where it takes a relatively long time to receive the information from the banknote processing apparatus  1 B and the banknote processing apparatus  1 C, a banknote to be processed may be once stored in the temporary storage section  17 A. After the information from the banknote processing apparatus  1 B and the banknote processing apparatus  1 C is received, the banknote can be appropriately processed based on the received information. It is needless to say that the banknote processing apparatus  1 A is capable of performing banknote processing substantially in real time in a case where information processing speeds in the banknote processing apparatus  1 B and the banknote processing apparatus  1 C as well as a communication speed through the network  3  are sufficiently high. 
     According to the banknote processing system  2  as such, a banknote can be appropriately processed even when one banknote processing apparatus that is the banknote processing apparatus  1 A does not cause every necessary serial number list to be recorded in the memory of the banknote processing apparatus  1 A. 
     Further, the banknote processing apparatus  1 D is capable of performing banknote processing as follows. First, the recognition unit  16 D and the control section  19 D perform the primary recognition, and read a serial number from a banknote. Subsequently, the serial number read from the banknote is sent to the banknote processing apparatuses  1 A to  1 C through the network  3 . 
     Upon reception of the serial number, the banknote processing apparatus  1 A uses the serial number to perform recognition processing similar to the secondary recognition. That is, the control section  19 A that the banknote processing apparatus  1 A comprises performs matching whether or not the received serial number is comprised in the serial number list  100 A recorded in the memory that the control section  19 A comprises. That is, it is determined whether or not the banknote to which the received serial number is attached is a banknote to be distinguished. 
     In a case where the received serial number is comprised in the serial number list  100 A, the banknote processing apparatus  1 A sends information on the fact that the received serial number is comprised in the serial number list  100 A, and on the additional information associated with the serial number to the banknote processing apparatus  1 D. In a case where the received serial number is not comprised in the serial number list  100 A, the banknote processing apparatus  1 A sends information on the fact that the received serial number is not comprised in the serial number list  100 A to the banknote processing apparatus  1 D. 
     The banknote processing apparatus  1 B and the banknote processing apparatus  1 C also function in the same manner as the banknote processing apparatus  1 A by using the serial number list  100 B and the serial number list  100 C. 
     The banknote processing apparatus  1 D performs final determination as to whether or not the recognized banknote needs to be processed by distinguishing the banknote from other banknotes based on the information received from the banknote processing apparatuses  1 A to  1 C. How the banknote is processed as a result of the determination is as described above with respect to the banknote processing apparatus  1 . 
     That is, by utilizing the banknote processing system  2 , the banknote processing apparatus  1 D is capable of processing a banknote that needs to be distinguished and processed by distinguishing the banknote from other banknotes even though the banknote processing apparatus  1 D does not cause any serial number list to be recorded in the memory of the banknote processing apparatus  1 D. 
     Further, the control section  19 A that the banknote processing apparatus  1 A comprises may record other apparatus information that is information on the banknote processing apparatuses  1 B to  1 D. The other apparatus information is information on serial number lists on which the control sections  19 B to  19 D that the banknote processing apparatuses  1 B to  1 D comprise are based when performing banknote processing. 
     Specifically, the other apparatus information is information that the control section  19 B and the control section  19 C are based on the serial number list  100 B and the serial number list  100 C, respectively, when performing banknote processing, and that the control section  19 D does not comprise any serial number list on which the control section  19 D is based when performing banknote processing. 
     In a case where the control section  19 A records the other apparatus information as such, the banknote processing apparatus  1 A is capable of selecting a banknote processing apparatus(es), which record(s) a serial number list(s) that should be matched, from the banknote processing apparatuses  1 B to  1 D based on the other apparatus information, and then sending the serial number to only a specific banknote processing apparatus(es). 
     Accordingly, by using the other apparatus information, it is possible to efficiently perform determination processing by dispersing the determination processing among a plurality of banknote processing apparatuses. 
     Further, in a case where determination processing is performed by dispersing the determination processing among a plurality of banknote processing apparatuses, the banknote processing apparatus  1 A that actually performs banknote processing, for example, may tentatively perform banknote processing before receiving the information from another banknote processing apparatus such as the banknote processing apparatus  1 B. In a case where the tentatively performed processing is not appropriate based on the information received from another banknote processing apparatus such as the banknote processing apparatus  1 B, an appropriate processing can be performed afterward. 
     Note that, by collecting and analyzing a plurality of results of the primary recognition, credibility of a serial number list can be enhanced and a version of the serial number list can be upgraded. Hereinafter, a description will be given of how to upgrade a version of a serial number list by using a serial number list  600  illustrated in  FIG. 7A  as an example. Note that, a column  601 , a column  602 , a column  603 , and a column  604  of the serial number list  600  correspond to the column  301 , the column  302 , the column  303 , and the column  304  of the serial number list  300 , respectively. 
     Table 2 illustrates a plurality of primary recognition results of banknotes. 
     
       
         
           
               
               
               
               
               
             
               
                 TABLE 2 
               
               
                   
               
               
                 Ser. 
                 Primary Recognition 
                   
                 Processing 
                   
               
               
                 No. 
                 Result 
                 Maker 
                 apparatus ID 
                 Date 
               
               
                   
               
             
            
               
                 OOO12345 
                 Counterfeit Note 
                 α 
                 1A 
                 1/10/YYYY 
               
               
                 PPP23456 
                 Suspected of 
                 α 
                 1A 
                 2/10/YYYY 
               
               
                   
                 Counterfeit Note 
               
               
                 QQQ34567 
                 Counterfeit Note 
                 α 
                 1A 
                 3/10/YYYY 
               
               
                 RRR45678 
                 Counterfeit Note 
                 β 
                 1B 
                 4/10/YYYY 
               
               
                 . 
                 . 
                 . 
                 . 
                 . 
               
               
                 . 
                 . 
                 . 
                 . 
                 . 
               
               
                 . 
                 . 
                 . 
                 . 
                 . 
               
               
                   
               
            
           
         
       
     
     Table 2 indicates, for example, that a banknote to which a serial number “OOO12345” is attached is processed on October 1, YYYY (year) by the banknote processing apparatus  1 A manufactured by a maker “α”. Further, it means that the banknote is determined as a counterfeit note as a result of the primary recognition since fluorescent light that is to be emitted originally is not emitted in the above case, for example. 
     Further, Table 2 indicates, for example, that a banknote to which a serial number “PPP23456” is attached is processed on October 2, YYYY (year) by the banknote processing apparatus  1 A manufactured by the maker “α”. Further, it means that the banknote is determined as a counterfeit note as a result of the primary recognition since fluorescent light slightly different from the fluorescent light that is to be emitted originally is not emitted in the above case, for example. 
     Table 3 is obtained by collecting and aggregating such information for a predetermined period. 
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 3 
               
               
                   
                   
               
               
                   
                   
                 Counterfeit 
                 Suspected of 
               
               
                   
                 Ser. No. 
                 Note 
                 Counterfeit Note 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 OOO12345 
                 1 
                 0 
               
               
                   
                 PPP23456 
                 0 
                 1 
               
               
                   
                 QQQ34567 
                 5 
                 6 
               
               
                   
                 RRR45678 
                 10 
                 20 
               
               
                   
                 . 
                 . 
                 . 
               
               
                   
                 . 
                 . 
                 . 
               
               
                   
                 . 
                 . 
                 . 
               
               
                   
                   
               
            
           
         
       
     
     Table 3 indicates information that the banknote to which the serial number “OOO12345” is attached is determined once as a counterfeit note, and that the banknote to which the serial number “PPP23456” is attached is determined once as being suspected of a counterfeit note. Further, Table 3 indicates information that a banknote to which a serial number “QQQ34567” is attached is determined five times as a counterfeit note, and six times as being suspected of a counterfeit note. Further, Table 3 indicates information that a banknote to which a serial number “RRR45678” is attached is determined ten times as a counterfeit note, and twenty times as being suspected of a counterfeit note. Note that, numerous counterfeit notes may be forged from a single plate. Accordingly, it may occur that counterfeit notes to which the same serial number is attached are processed a plurality of times by a plurality of banknote processing apparatuses. 
     A version of the serial number list  600  can be upgraded based on the abovementioned information and predetermined criteria. The predetermined criteria are, for example, as follows. (1) When a serial number is determined once or more as involving a counterfeit note or five times or more as involving being suspected of a counterfeit note, a banknote to which the serial number is attached is possibly a counterfeit note. (2) When a serial number is determined five times or more as involving a counterfeit note or ten times or more as involving being suspected of a counterfeit note, a banknote to which the serial number is attached is highly possibly a counterfeit note. (3) When a serial number is determined ten times or more as involving a counterfeit note, a banknote to which the serial number is attached can be concluded as a counterfeit note. 
     As a result of the version upgrade, as illustrated in  FIG. 7B , a serial number “OOO12345” that is not listed before the version upgrade is added to the column  601 , and additional information “COUNTERFEIT NOTE” is associated with the serial number as illustrated in the column  602 , and additional information “1” is associated with the serial number as illustrated in the column  603 . That is, information that the banknote to which the serial number “OOO12345” is attached is possibly a counterfeit note is added to the serial number list  600  by the version upgrade. 
     Further, although the serial number “QQQ34567” is associated with the additional information “1” in the column  603  before the version upgrade, the serial number “QQQ34567” is associated with additional information “2” after the version upgrade. That is, the information that the banknote to which the serial number “QQQ34567” in the serial number list  600  is attached is updated by the version update from “possibly a counterfeit note” to “highly possibly a counterfeit note”. 
     Further, although the serial number “RRR45678” is associated with the additional information “2” in the column  603  before the version upgrade, the serial number “RRR45678” is associated with additional information “3” after the version upgrade. That is, the information that the banknote to which the serial number “RRR45678” in the serial number list  600  is attached is updated by the version update from “highly possibly a counterfeit note” to “can be concluded as a counterfeit note”. 
     Note that, the serial number “PPP23456” is not added to the serial number list  600  by the version upgrade. 
     It is also possible to create a new serial number list by using the above-described technique. 
     Further, the banknote processing apparatus  1 A may also register based on which version of which serial number list the secondary recognition is performed. By doing so, validity of a secondary recognition result or validity of a serial number list on which the secondary recognition is based can be verified afterward. 
     Although some embodiments of the present invention have been described thus far, the present invention is not limited to each of the embodiments described above, and various modifications are possible without departing from the spirit of the present invention. For example, processing similar to the processing described by using one of the serial number lists  100  to  600  as an example may be performed using another of the serial number lists  100  to  600 . 
     Further, the sheet processing apparatus and the sheet processing system are not limited to the banknote processing apparatus and the banknote processing system, and may be an apparatus and a system for processing other sheets such as checks and vouchers. 
     This application is entitled to the benefit of Japanese Patent Application No. 2017-233511, filed on Dec. 5, 2017, the disclosure of which including the specification, drawings and abstract is incorporated herein by reference in its entirety. 
     INDUSTRIAL APPLICABILITY 
     The present invention is suitable for use as a sheet processing apparatus and a sheet processing system. 
     REFERENCE SIGNS LIST 
     
         
           1 ,  1 A,  1 B,  1 C,  1 D Banknote processing apparatus 
           10  Processing section 
           11  Upper housing 
           12  Depositing section 
           12   a  Inlet 
           13  Withdrawal section 
           13   a  Outlet 
           14  Reject section 
           14   a  Reject port 
           15  Transport unit 
           16 ,  16 A,  16 B,  16 C,  16 D Recognition unit 
           17 ,  17 A,  17 B,  17 C,  17 D Temporary storage section 
           18  First reject box 
           19 ,  19 A,  19 B,  19 C,  19 D Control section 
           20  Storage compartment 
           21  Lower housing 
           22  First storage unit 
           23  Second storage unit 
           24  Second reject box 
           100 ,  200 ,  300 ,  400 ,  500 ,  100 A,  100 B,  100 C,  600  Serial number list 
           101 ,  102 ,  201 ,  202 ,  301 ,  302 ,  303 ,  304 ,  401 ,  402 ,  403 ,  501 ,  502 ,  503 ,  601 ,  602 ,  603 ,  604  Column 
           2  Banknote processing system 
           3  Network