Deterioration determination system and deterioration determination method

Abstract

This deterioration-determining system (100) comprises a field repair unit provided in a bank-note-handling device (50), a vibration detection sensor (51), a determination unit (62), and a notification unit (63). The field repair unit has rubber components, and the vibration detection sensor (51) measures vibration data by detecting the vibration of the field repair unit. The determination unit (62) determines the degree of deterioration of the rubber components of the field repair unit on the basis of the vibration amplitude peak obtained from the vibration data and the root mean square of the vibration amplitude, and the notification unit (63) gives notification of the determined degree of deterioration.

Description

[Technical field]

[0001] The present disclosure relates to a deterioration determination system and a deterioration determination method. [Background technology]

[0002] Some banknote handling devices such as ATMs (Automatic Teller Machines) have individually replaceable field repair units. Examples of field repair units include a deposit / withdrawal unit that deposits and withdraws banknotes, a storage unit that temporarily stores banknotes, and a storage cassette that stores banknotes by denomination. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-210718 A [Patent Document 2] JP 2010-281280 A [Patent Document 3] JP 2010-052470 A Summary of the Invention [Problem to be solved by the invention]

[0004] If a failure occurs in the field repair unit, it becomes difficult to use the bill handling machine.

[0005] Therefore, the present disclosure proposes a technique that enables a field repair unit to be replaced at an appropriate time before a failure occurs in the field repair unit. [Means for solving the problem]

[0006] The deterioration determination system of the present disclosure includes a field repair unit provided in a banknote handling machine, a sensor, a determination unit, and a notification unit. The field repair unit includes a rubber part. The sensor measures vibration data by detecting vibrations of the field repair unit. The determination unit determines a degree of deterioration of the rubber part based on a peak of vibration amplitude and a root mean square of the vibration amplitude obtained from the vibration data. The notification unit notifies the determined degree of deterioration. Effect of the Invention

[0007] According to the disclosed technique, a field repair unit can be replaced at an appropriate time before a failure occurs in the field repair unit. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating an example of vibration data for a new rubber part of the present disclosure. [Diagram 2] FIG. 2 is a diagram illustrating an example of vibration data of a deteriorated rubber part of the present disclosure. [Diagram 3] FIG. 3 is a diagram illustrating an example of a peak amplitude according to the present disclosure. [Figure 4] FIG. 4 illustrates an example of a two-dimensional graph of peak amplitude versus amplitude RMS of the present disclosure. [Diagram 5] FIG. 5 is a diagram illustrating an example of a cloud of plot points in a two-dimensional graph of peak amplitude versus RMS amplitude according to the present disclosure. [Figure 6] FIG. 6 is a diagram illustrating an example of the degradation determination threshold value of the present disclosure. [Figure 7] FIG. 7 is a diagram showing an example of the configuration of a banknote handling device according to the present disclosure. [Figure 8] FIG. 8 is a diagram illustrating an example of the configuration of a deterioration determination system according to the present disclosure. [Figure 9] FIG. 9 is a diagram illustrating an example of communication data according to the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the embodiments, the same components are denoted by the same reference numerals.

[0010] [Example] <Setting the deterioration judgment threshold> Among field repair units, those having rubber parts are particularly susceptible to failure of the field repair unit when the rubber parts deteriorate. In addition, as the rubber parts of the field repair unit deteriorate, the magnitude of the amplitude of vibration generated in the rubber parts when the field repair unit is driven changes. FIG. 1 is a diagram showing an example of vibration data of a new rubber part (hereinafter sometimes referred to as a "new part") of the present disclosure, and FIG. 2 is a diagram showing an example of vibration data of a deteriorated rubber part (hereinafter sometimes referred to as a "deteriorated part") of the present disclosure. Comparing the vibration data ND of the new part shown in FIG. 1 with the vibration data DD of the deteriorated part shown in FIG. 2, it can be seen that the vibration amplitude of the deteriorated part tends to be smaller than the vibration amplitude of the new part.

[0011] First, a sample new part is used to measure vibration data for 3 seconds 10 times, and each 3-second period of the vibration data is divided into 0.3-second periods to obtain 100 pieces of vibration data, each for 0.3 seconds, as vibration data for the new part (hereinafter sometimes referred to as "new part data"). Similarly, a sample deteriorated part is used to measure vibration data for 3 seconds 10 times, and each 3-second period of the vibration data is divided into 0.3-second periods to obtain 100 pieces of vibration data, each for 0.3 seconds, as vibration data for the deteriorated part (hereinafter sometimes referred to as "deteriorated part data").

[0012] Next, for example, using Fourier transform, the time domain of each of the 100 pieces of new part data is converted into a frequency domain to obtain 100 pieces of new part data expressed in the frequency domain. Similarly, for example, using Fourier transform, the time domain of each of the 100 pieces of deteriorated part data is converted into a frequency domain to obtain 100 pieces of deteriorated part data expressed in the frequency domain. Then, as shown in FIG. 3, a vibration amplitude having a maximum peak (hereinafter sometimes referred to as a "peak amplitude") is detected in each of the new part data and deteriorated part data expressed in the frequency domain. FIG. 3 is a diagram showing an example of the peak amplitude of the present disclosure. Hereinafter, the peak amplitude detected in the new part data may be referred to as a "new part peak amplitude", and the peak amplitude detected in the deteriorated part data may be referred to as a "deteriorated part peak amplitude". 100 new part peak amplitudes are obtained from the 100 pieces of new part data, and 100 deteriorated part peak amplitudes are obtained from the 100 pieces of deteriorated part data.

[0013] Meanwhile, the root mean square (RMS) of the vibration amplitude is calculated for each of the 100 pieces of new part data. Similarly, the RMS of the vibration amplitude is calculated for each of the 100 pieces of degraded part data. Below, the RMS of the vibration amplitude is sometimes referred to as the "amplitude RMS," the amplitude RMS of the new part data is sometimes referred to as the "new part RMS," and the amplitude RMS of the degraded part data is sometimes referred to as the "degraded part RMS." 100 new part RMS are calculated from the 100 pieces of new part data, and 100 degraded part RMS are calculated from the 100 pieces of degraded part data.

[0014] Next, for each of the 100 pieces of new part data, the 100 new part peak amplitudes and the 100 new part RMS are associated with each other and plotted in a two-dimensional graph of peak amplitude versus amplitude RMS as shown in FIG. 4. Similarly, for each of the 100 pieces of deteriorated part data, the 100 deteriorated part peak amplitudes and the 100 deteriorated part RMS are associated with each other and plotted in a two-dimensional graph of peak amplitude versus amplitude RMS as shown in FIG. 4. FIG. 4 is a diagram showing an example of a two-dimensional graph of peak amplitude versus amplitude RMS of the present disclosure. As shown in FIG. 4, all of the plot points of the new part data are in an area where the peak amplitude is 400 or more, and all of the plot points of the deteriorated part data are in an area where the peak amplitude is less than 400. Also, as shown in FIG. 4, almost all of the plot points of the new part data are in an area where the amplitude RMS is 620 or more, and all of the plot points of the deteriorated part data are in an area where the amplitude RMS is less than 620. Therefore, the peak amplitude of 400 becomes the reference peak amplitude for setting the degradation determination threshold, and the amplitude RMS of 620 becomes the reference amplitude RMS for setting the degradation determination threshold.

[0015] Also, in order to take into account the distribution state of the plot points of the new part data, the average value of the new part peak amplitudes in the group of 100 plot points NP of the new part data (hereinafter may be referred to as the "new part peak amplitude average value") and the average value of the new part RMS in the group of 100 plot points NP of the new part data (hereinafter may be referred to as the "new part RMS average value") are calculated as shown in FIG. 5. Similarly, in order to take into account the distribution state of the plot points of the deteriorated part data, the average value of the deteriorated part peak amplitudes in the group of 100 plot points DP of the deteriorated part data (hereinafter may be referred to as the "deteriorated part peak amplitude average value") and the average value of the deteriorated part RMS in the group of 100 plot points DP of the deteriorated part data (hereinafter may be referred to as the "deteriorated part RMS average value") are calculated as shown in FIG. 5. As a result, for example, as shown in FIG. 5, the new part peak amplitude average value is calculated as 700, the new part RMS average value is calculated as 800, the deteriorated part peak amplitude average value is calculated as 280, and the deteriorated part RMS average value is calculated as 550. Therefore, the new part peak amplitude average value of 700 and the deteriorated part peak amplitude average value of 280 are the reference peak amplitudes for setting the deterioration determination threshold, and the new part RMS average value of 800 and the deteriorated part RMS average value of 550 are the reference amplitude RMS for setting the deterioration determination threshold. Figure 5 is a diagram showing an example of a group of plot points in a two-dimensional graph of peak amplitude versus amplitude RMS of the present disclosure.

[0016] Next, the deterioration determination threshold is set as shown in FIG. 6 using the reference peak amplitudes of 280, 400, and 700, and the reference amplitude RMS of 550, 620, and 800. FIG. 6 is a diagram showing an example of the deterioration determination threshold of the present disclosure. As shown in FIG. 6, for example, a threshold THP1 of 700, a threshold THP2 of 400, and a threshold THP3 of 280 are set as the deterioration determination threshold for the average value of the peak amplitude of 100 pieces of vibration data acquired in 3 seconds as described above (hereinafter, sometimes referred to as the "peak amplitude average value"). Also, for example, a threshold THR1 of 800, a threshold THR2 of 620, and a threshold THR3 of 550 are set as the deterioration determination threshold for the average value of the amplitude RMS of 100 pieces of vibration data acquired in 3 seconds as described above (hereinafter, sometimes referred to as the "amplitude RMS average value"). Then, the region where the peak amplitude average value is equal to or greater than THP1 and the amplitude RMS average value is equal to or greater than THR1 is specified as the safety region Ra. Moreover, the region where the peak amplitude average value is equal to or greater than THP2 and less than THP1, and the amplitude RMS average value is equal to or greater than THR2 and less than THR1, is defined as the caution region Rb. Moreover, the region where the peak amplitude average value is equal to or greater than THP3 and less than THP2, and the amplitude RMS average value is equal to or greater than THR3 and less than THR2, is defined as the danger region Rc. Moreover, the region where the peak amplitude average value is less than THP3 and the amplitude RMS average value is less than THR3 is defined as the failure region Rd. In other words, the degree of deterioration of the rubber parts of the field repair unit (hereinafter sometimes referred to as "FRU deterioration degree") is lowest in the safety region Ra and highest in the failure region Rd, and increases in the order of the safety region Ra, the caution region Rb, the danger region Rc, and the failure region Rd.

[0017] <Configuration of the banknote handling device> FIG. 7 is a diagram showing an example of the configuration of a banknote handling device according to the present disclosure.

[0018] 7, a banknote handling device 50 has a deposit / withdrawal unit 3 for depositing and withdrawing banknotes 2, a first storage unit 4 for temporarily storing the banknotes 2 deposited from the deposit / withdrawal unit 3, a discrimination unit 5 for discriminating the banknotes 2 transported from the first storage unit 4, and a second storage unit 6 for temporarily storing the banknotes 2 transported from the discrimination unit 5. The banknote handling device 50 also has a return unit 7 for returning the banknotes 2 by storing and discharging the banknotes 2 transported from the discrimination unit 5, and a reject unit 8 for storing banknotes 2 with abnormal thickness or length, damaged banknotes 2, etc.

[0019] Banknotes 2 deposited through the deposit / withdrawal unit 3 are stored in the first storage unit 4 and then validated in the validation unit 5. Banknotes 2 for which anomalies are detected in the validation unit 5 are transported from the validation unit 5 to the reject unit 8 and stored therein. On the other hand, banknotes 2 for which no anomalies are detected in the validation unit 5 are stored in the second storage unit 6.

[0020] When a return process is performed on the banknotes 2 deposited from the deposit / withdrawal unit 3, the banknotes 2 stored in the second storage unit 6 are transported to the deposit / withdrawal unit 3 and returned from the deposit / withdrawal unit 3. On the other hand, when a deposit process is performed on the banknotes 2 deposited from the deposit / withdrawal unit 3, the banknotes 2 stored in the second storage unit 6 are transported to the first storage unit 4, transported from the first storage unit 4 to the discrimination unit 5, and then transported from the discrimination unit 5 to the recycling unit 7 and stored in the storage cassettes 7a, 7b, 7c, and 7d of the recycling unit 7 by denomination.

[0021] In addition, when the banknotes 2 stored in the reflux section 7 are dispensed, the banknotes 2 stored in the reflux section 7 are transported from the reflux section 7 to the classification section 5, and then transported from the classification section 5 to the second storage section 6 and stored in the second storage section 6, and the banknotes 2 stored in the second storage section 6 are transported to the deposit / withdrawal section 3 and dispensed from the deposit / withdrawal section 3.

[0022] Each of the deposit / withdrawal unit 3, the first storage unit 4, the second storage unit 6, the storage cassettes 7a to 7d, and the reject unit 8 is an example of an individually replaceable field repair unit. Each of the deposit / withdrawal unit 3, the first storage unit 4, the second storage unit 6, the storage cassettes 7a to 7d, and the reject unit 8 has a transport roller for transporting the banknotes 2, and a transport motor for driving the transport roller. The transport roller for transporting the banknotes 2 is an example of a rubber part.

[0023] A vibration detection sensor 51A is attached to the deposit / withdrawal unit 3, a vibration detection sensor 51B is attached to the first storage unit 4, a vibration detection sensor 51C is attached to the second storage unit 6, and a vibration detection sensor 51H is attached to the reject unit 8. A vibration detection sensor 51D is attached to the storage cassette 7a, a vibration detection sensor 51E is attached to the storage cassette 7b, a vibration detection sensor 51F is attached to the storage cassette 7c, and a vibration detection sensor 51G is attached to the storage cassette 7d. Each of the vibration detection sensors 51A, 51B, 51C, 51D, 51E, 51F, 51G, and 51H is preferably attached near the conveying rollers of the deposit / withdrawal unit 3, the first storage unit 4, the second storage unit 6, the storage cassettes 7a to 7d, and the reject unit 8.

[0024] The banknote handling machine 50 also includes a data generating unit 52 and a transmitting unit 53 .

[0025] Hereinafter, the deposit / withdrawal unit 3, the first storage unit 4, the second storage unit 6, the storage cassettes 7a to 7d, and the reject unit 8 may be collectively referred to as a "field repair unit." Furthermore, below, the vibration detection sensors 51A to 51H may be collectively referred to as a "vibration detection sensor 51."

[0026] An acceleration sensor is an example of the vibration detection sensor 51. The data generation unit 52 is realized as hardware, for example, by a processor such as a central processing unit (CPU), a digital signal processor (DSP), or a field programmable gate array (FPGA). The transmission unit 53 is realized as hardware, for example, by a communication module.

[0027] <Configuration of Deterioration Judgment System> FIG. 8 is a diagram illustrating an example of the configuration of a deterioration determination system according to the present disclosure.

[0028] 8, the deterioration determination system 100 has a banknote handling machine 50 and a deterioration determination device 60. The banknote handling machine 50 and the deterioration determination device 60 are connected via a network 70. The banknote handling machine 50 has a vibration detection sensor 51, a data generation unit 52, and a transmission unit 53. The deterioration determination device 60 has a receiving unit 61, a determination unit 62, and a notification unit 63. The receiving unit 61 is realized as hardware, for example, by a communication module. The determination unit 62 and the notification unit 63 are realized as hardware, for example, by a processor such as a CPU, DSP, FPGA, etc. The deterioration determination device 60 is realized as a computer, for example.

[0029] Each of the vibration detection sensors 51 attached to each field repair unit periodically measures vibration data by detecting the vibration of each field repair unit, and outputs the measured vibration data to the data generation unit 52. For example, the vibration detection sensor 51 starts detecting vibration and measuring vibration data at 13:00 every Wednesday. As described above, the vibration detection sensor 51 also measures 3-second vibration data 10 times, and divides each 3-second vibration data into 0.3-second chunks to obtain 100 pieces of vibration data, each 0.3 seconds long, as field repair unit vibration data (hereinafter sometimes referred to as "FRU data").

[0030] The data generating unit 52 receives FRU data from each of the vibration detection sensors 51 attached to each field repair unit. As shown in FIG. 9, the data generating unit 52 generates communication data DA by adding a device ID capable of uniquely identifying the banknote handling device 50 and a unit ID capable of uniquely identifying the field repair unit that is the subject of vibration detection (i.e., the field repair unit to which the vibration detection sensor 51 that outputs the FRU data is attached) to the FRU data. FIG. 9 is a diagram showing an example of communication data of the present disclosure. The data generating unit 52 outputs the generated communication data DA to the transmitting unit 53.

[0031] The transmission unit 53 transmits the communication data DA to the deterioration determining device 60 via the network 70. The communication data DA transmitted from the transmission unit 53 is received by the reception unit 61 of the deterioration determining device 60.

[0032] The receiving unit 61 outputs the received communication data DA to the determining unit 62 .

[0033] The determination unit 62 determines the degree of FRU deterioration based on the FRU data included in the communication data DA. As described above, the determination unit 62 obtains the 100 pieces of FRU data expressed in the frequency domain by converting the time domain of each of the 100 pieces of FRU data into the frequency domain using, for example, a Fourier transform. Then, the determination unit 62 detects a peak amplitude in each of the FRU data expressed in the frequency domain. Hereinafter, the peak amplitude detected in the FRU data may be referred to as the "FRU peak amplitude." The 100 FRU peak amplitudes are obtained from the 100 pieces of FRU data.

[0034] Meanwhile, the determination unit 62 calculates the RMS of the vibration amplitude for each of the 100 pieces of FRU data. Hereinafter, the amplitude RMS of the FRU data may be referred to as the “FRU amplitude RMS.” The 100 FRU amplitude RMS are calculated from the 100 pieces of FRU data.

[0035] Next, the determination unit 62 calculates the average value of the 100 FRU peak amplitudes (hereinafter may be referred to as the "average FRU peak amplitude value"). The determination unit 62 also calculates the average value of the 100 FRU amplitude RMS (hereinafter may be referred to as the "average FRU amplitude RMS value").

[0036] Here, the determination unit 62 is preset with deterioration determination thresholds THP1, THP2, THP3, THR1, THR2, and THR3 based on the above-mentioned reference peak amplitude and reference amplitude RMS. Therefore, when the FRU peak amplitude average value is equal to or greater than THP1 and the FRU amplitude RMS average value is equal to or greater than THR1, the determination unit 62 determines that the FRU deterioration level is in the safety region Ra. Furthermore, when the FRU peak amplitude average value is equal to or greater than THP2 and less than THP1 and the FRU amplitude RMS average value is equal to or greater than THR2 and less than THR1, the determination unit 62 determines that the FRU deterioration level is in the caution region Rb. Furthermore, when the FRU peak amplitude average value is equal to or greater than THP3 and less than THP2 and the FRU amplitude RMS average value is equal to or greater than THR3 and less than THR2, the determination unit 62 determines that the FRU deterioration level is in the danger region Rc. Furthermore, when the FRU peak amplitude average value is less than THP3 and the FRU amplitude RMS average value is less than THR3, the determination unit 62 determines that the FRU deterioration level is in the failure region Rd. As described above, the FRU deterioration level is lowest in the safety region Ra and highest in the failure region Rd, and increases in the order of the safety region Ra, the caution region Rb, the danger region Rc, and the failure region Rd. The determination unit 62 then outputs to the notification unit 63 information indicating whether the FRU deterioration level is in the safety region Ra, the caution region Rb, the danger region Rc, or the failure region Rd (hereinafter sometimes referred to as "FRU deterioration level information"), in association with the device ID and unit ID included in the communication data DA.

[0037] The notification unit 63 notifies the operator of the FRU deterioration level. For example, the notification unit 63 associates the device ID, the unit ID, and the FRU deterioration level information, and displays them on a display (not shown) connected to the deterioration determination device 60. Thus, the operator can recognize the degree of deterioration of the rubber parts of which field repair unit of which banknote handling device.

[0038] The above describes the embodiment.

[0039] As described above, the deterioration determination system of the present disclosure (deterioration determination system 100 of the embodiment) includes a field repair unit (cash deposit / withdrawal unit 3, first storage unit 4, second storage unit 6, storage cassettes 7a-7d, and reject unit 8 of the embodiment) provided in a banknote handling machine (banknote handling machine 50 of the embodiment), a sensor (vibration detection sensor 51 of the embodiment), a determination unit (determination unit 62 of the embodiment), and a notification unit (notification unit 63 of the embodiment). The field repair unit has a rubber part. The sensor measures vibration data by detecting vibration of the field repair unit. The determination unit determines the degree of deterioration of the rubber part based on the peak of the vibration amplitude and the root mean square of the vibration amplitude obtained from the vibration data. The notification unit notifies the determined degree of deterioration.

[0040] In this way, the field repair unit can be replaced at an appropriate time before a failure occurs in the field repair unit. For example, by replacing the field repair unit when the degree of deterioration of the rubber part is in the caution area Rb or the danger area Rc of the safety area Ra, the caution area Rb, the danger area Rc, and the failure area Rd, the field repair unit can be replaced before a failure occurs due to the deterioration of the rubber part. In addition, by not replacing the field repair unit while the degree of deterioration of the rubber part is in the safety area Ra of the safety area Ra, the caution area Rb, the danger area Rc, and the failure area Rd, unnecessary replacement of the field repair unit can be prevented.

[0041] For example, the determining unit determines that the smaller the peak of the vibration amplitude is, the higher the degree of deterioration of the rubber part is.

[0042] Further, for example, the determination unit determines that the degree of deterioration of the rubber part is higher as the root mean square of the vibration amplitude is smaller.

[0043] This makes it possible to accurately determine the degree of deterioration of the rubber parts of the field repair unit. [Explanation of symbols]

[0044] 100 Deterioration Judgment System 50 Banknote handling equipment 51 Vibration detection sensor 52 Data Generation Division 53 Transmitter 60 Deterioration determination device 61 Receiving section 62 Judgment section 63 Notification Department

Claims

1. A field repair unit for a banknote handling machine, the field repair unit having a rubber part; a sensor for measuring vibration data by detecting vibrations of the field repair unit; a determination unit that determines a degree of deterioration of the rubber part based on a peak of vibration amplitude and a root mean square of the vibration amplitude obtained from the vibration data; a notification unit that notifies the determined degree of deterioration; A deterioration determination system comprising:

2. The determination unit determines that the degree of deterioration is higher as the peak is smaller. The deterioration determination system according to claim 1 .

3. The determination unit determines that the degree of deterioration is higher as the root mean square value is smaller. The deterioration determination system according to claim 1 .

4. A sensor comprising: a field repair unit provided in a banknote handling machine, the field repair unit having a rubber part being detected to measure vibration data; A processor determines a degree of deterioration of the rubber component based on a peak of vibration amplitude and a root mean square of the vibration amplitude obtained from the vibration data. Deterioration judgment method.

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