JPH0912180A - Paper sheet carrier - Google Patents

Abstract

PURPOSE: To provide a paper sheet carrier capable of continuously checking paper sheets by registering the time, length and interval of the paper sheets passing through a plurality of sensors on a carrying path without making abnormal a dimension of the paper sheets being carried seen or not seen caused by the reading cycle and the like of the sensors. CONSTITUTION: A paper sheet passage checking part sets the time and length of paper sheets passing through a passing time registration area and monitors the passing of the paper sheets between a sensor and a sensor Sn+1. When indeterminate paper sheets flow on the carrying path and detected in any of sensors Sn and Sn+1, correction is made by using the registered paper sheet length and the like and preventing abnormality considering non-detection on the other hand.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet conveying device,
In particular, the present invention relates to a paper sheet conveying device suitable for separating and conveying banknotes and single-cut sheets in automatic transaction devices used in financial institutions and the like.

[0002]

2. Description of the Related Art Conventional devices of this type include, for example,
The device disclosed in JP-A-59-118639 can be mentioned. This device uses an optical sensor to monitor the bills on the conveyance path, and monitors a conveyance abnormality of the bills with a certain set timer. More specifically, the device shown in the above-mentioned prior art is provided with a transport path for transporting banknotes, along this transport path, with a predetermined interval in the transport direction, and for passing the banknotes. A plurality of sensors for detecting, a pulse generator provided in the conveying path for generating a pulse in synchronization with the conveyance speed of the bill, and a storage means for storing the number of bills detected by the detection signal of each sensor. A pulse counting means for counting the number of pulses of the pulse generator after passing the sensor for each number of bills detected by the first sensor,
A bill counting unit that counts bills passing through each sensor, compares the pulse number of the pulse generator corresponding to the number of bills detected by the rear sensor with a preset reference pulse number, and when it is out of a predetermined range. First, the first correction means for correcting the bill counting means of the front sensor is compared with the detection number of the pulse counting means which has reached a predetermined value and the detection number of the rear sensor, and the detection number of the rear sensor is small. Further, when the sensor has a banknote, the banknote counting means is corrected, and when the sensor has no banknote, a second correcting means for detecting a jam is provided. With the above-mentioned configuration, the above-mentioned device can carry the bill even if the bills come into contact with or separate from each other during the conveyance (they are overlapped or unfolded), and the detection signals of the respective sensors are abnormal. In such a case, since it operates continuously, it is said that the operation rate will be improved without any trouble.

[0003]

However, in the above-mentioned device, the fact that the detection state of paper sheets such as banknotes changes depending on the reading cycle of the sensor has not been taken into consideration. Hereinafter, this will be described in detail. That is, in the above-mentioned conventional technique, the conveyance abnormality of the paper sheet is monitored by a certain timer, and it is recognized that the paper sheet does not come within the set timer. Therefore, there are the following problems. (1) Even if the sheet size detected by the first sensor between the two sensors on the transport path is a size that cannot be detected or not detected by the reading cycle of the second sensor, this first sensor is used. The conveyance of the detected paper sheet was monitored until it was detected by the second sensor. Therefore, even if dust (a piece of paper leaf) or the like passes by the first sensor, or if it appears that the dust has passed due to flickering of the sensor, these are detected as paper sheets and detected by the second sensor. If it could not be done, it was judged as an abnormality because a conveyance jam occurred. In many cases, this abnormality is due to the reading cycle of the sensor, and since it is possible to continue the transportation without any trouble in the transportation, the result is that the apparatus which does not need to be down is brought down.

(2) Between the two sensors on the conveyance path, even if the sheet size detected by the second sensor is a size that is unknown whether or not it is detected in the reading cycle of the first sensor, When it was detected only by the sensor, it was determined that this was a spring of paper sheets, and it was abnormal. For this reason,
If dust (broken pieces of paper leaves) or the like appears to have passed through the second sensor, or if it appears to have passed due to flickering of the sensor, or if these have not been detected as paper leaves by the first sensor, continue. Despite being transportable
The device was down. The present invention has been made in view of the above circumstances, and an object of the present invention is to solve the above-described problems in the related art and to cause a difference in reading results by a plurality of sensors having different reading cycles,
It is an object of the present invention to provide a paper sheet transporting device capable of improving the operating rate by providing a condition of ignoring this and operating the device without lowering the difference within this range.

[0005]

The above object of the present invention is to convey a paper sheet along a predetermined conveyance path and a conveyance mechanism arranged along the conveyance path. Check the passage of paper sheets in a paper sheet conveyance device that has multiple sensors that monitor the paper sheets and a time mechanism that converts the amount of conveyance starting from the start of conveyance or the passage of real time into time A means is provided, and the means stores the passage time and the length of the paper sheet passed by each of the two sensors on the conveyance path, and the first sensor causes the second sensor to detect the second time based on the stored information.
When a paper sheet or a foreign material having a length that may not be detected by the sensor is detected, the detection result of the paper sheet by the second sensor is ignored,
Alternatively, the checking means stores the passage time and the length of the sheet passed by each of the two sensors on the conveying path, and the stored information allows the second sensor to detect the first sensor. This is achieved by a paper sheet conveying device characterized by ignoring the detection result of the paper sheet by the first sensor when detecting a paper sheet or a foreign substance of a length that may not be detected. .

More specifically, in the first paper sheet conveying apparatus according to the present invention, in order to achieve the above-mentioned object, the means for checking the passage of the paper sheet has two sensors on the conveying path. The time and the length of the paper sheet that has passed are registered, and with the registration information, the paper sheet registered by the first sensor may not be detected in the reading cycle of the second sensor. In some cases, regardless of whether or not it is detected by the second sensor, it is not abnormal and the passage of the paper sheet is continuously monitored. Further, in the second paper sheet transporting device according to the present invention, in order to achieve the above object,
The means for checking the passage of the paper sheet registers the time and the length of the paper sheet which has passed through the two sensors on the transport path, and the paper sheet detected by the second sensor based on the registration information. However, if the size is such that it may not be detected in the reading cycle of the first sensor, the passage of the paper sheet is continuously monitored without an abnormality.

[0007]

The specific operation of the paper sheet conveying apparatus according to the present invention is as follows.
It is as follows. In the paper sheet conveying apparatus according to the first aspect of the present invention, the means for checking the passage of the paper sheet is the time when the leading edge of the first paper sheet passes the first sensor. Is registered and the storage pointer is advanced by one. Then, the time is registered when the trailing edge of the first sheet passes the first sensor, and the length of the sheet is obtained and registered from the time difference between the leading edge and the trailing edge. When the processing pointer and the storage pointer are different, the paper sheet indicated by the processing pointer is started to be monitored. If the paper sheet to be monitored is a paper sheet having a size that can be seen or not depending on the reading timing of the sensor, the processing pointer Is preceded by 1 and the spring counter is updated by +1. This paper sheet is second
When it is detected by the sensor of, the well-up counter is decremented by -1.

As a result, a paper sheet having a size that is visible or invisible depending on the reading timing of the sensor is detected by the first sensor, and it is not abnormal whether or not it is detected by the second sensor, and the paper sheet continues to be detected. Can be monitored. Further, in the paper sheet conveying apparatus according to the second aspect of the present invention, the means for checking the passage of paper sheets includes:
When the processing pointer and the storage pointer are equal at the time when the leading edge of the paper sheet passes through the second sensor, the spring-out abnormality report waiting flag is turned on. After that, when the trailing edge of the paper sheet passes the second sensor, the length of the paper sheet is calculated, and if the paper sheet has a size that can be seen or cannot be seen depending on the reading timing of the sensor, a spring-out abnormality occurs. Instead, the abnormality report waiting flag is turned off. As a result, even when the second sensor alone detects a paper sheet having a size that can be seen or not depending on the reading timing of the sensor, the passage of the paper sheet can be continuously monitored without causing an abnormality.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram showing a banknote transport path portion in an automatic teller machine according to a first embodiment of the present invention. In the figure, 1 is a transport path, 2 is a banknote, Sn, Sn +
Reference numeral 1 denotes a sensor provided on the transport path 1 for detecting the banknote 2, and shows a state in which the banknote 2 is transported in the direction of the arrow along the transport path 1. FIG. 2 is a diagram showing a control block diagram of the automatic teller machine according to the present embodiment. In the figure, 3 is a main control unit, 4 is a host device, 5 is a line control unit, 6 is a carry motor control unit, and 7 is an encoder. In addition, 8 is a plurality of sensors, of which 2
1 corresponds to Sn and Sn + 1 in FIG. Reference numeral 9 denotes a bill passage check unit, which uses the dark light information of the sensor 8 received by the main control unit to check the passage time registration area 1
0 is used to monitor the transportation of bills (details will be described later).

The line control unit 5 includes a host device 4 and a main control unit 3.
Is installed between the two, and receives requests from the higher-level device 4,
This is for transmitting a response from the main control unit 3 to the higher-level device 4. The carry motor control unit 6 is for performing ON / OFF control of the carry motor according to a request from the main control unit 3. The encoder 7 is connected to the drive unit of the transport path and outputs a pulse signal (encoder pulse signal) to the main control unit 3 according to the amount of movement of the transport path. The main control unit 3 calculates the elapsed time during driving of the transport path based on the encoder pulse signal received from the encoder 7. The sensor 8 is for detecting the presence / absence of a bill passing through the sensor position and outputting the dark light information to the main control unit 3.

FIG. 3 is a diagram showing a registration area of passing times and the like of each sensor shown in FIG. 1, in which 21 is a storage pointer, 22 is a processing pointer, 23 is a spring counter,
24 is a springing out abnormality report waiting flag, 25 is the leading edge time corresponding to the time when the leading edge of the bill passes the sensor Sn (the rising change point of the sensor Sn), 26 is the bill length, and 27 is the bill trailing end. The trailing end time corresponding to the time point when Sn has passed (falling change point of the sensor Sn) is shown.
The method of using each pointer, counter, etc. will be described sequentially. In addition, FIG. 4 is a table of banknote detection accuracy based on sensor double reading information that is determined when dark and light continue twice or more. Note that here, the transport speed 1200
It is calculated as mm / s and sensor reading cycle of 3.2 ms.
The meaning of this table is as follows.

First, "undetected" means a banknote length that cannot be detected by a sensor, "indeterminate banknote" means a banknote length that cannot be detected or not, and "banknote" means a banknote length that is always detected. ing. As described above, conventionally, no consideration has been given to the “indefinite banknote”. FIG. 5: is operation | movement in an Example when the banknote in jam check is a banknote of the length which may not be detected by the sensor Sn + 1 about the banknote registered by the sensor Sn based on the reference | standard shown in FIG. FIG.

The banknote transport monitoring operation of the automatic teller machine according to the first embodiment of the present invention will be described below with reference to FIGS. 2 to 5, 7 and 8. However, FIG. 7 and FIG. 8 are operation flowcharts for the first and second embodiments. The banknote passage check unit 9 in FIG.
The time and length of the banknote passing through 0 are set as follows, and the banknote passing is monitored. First, at the time when the tip of a normal banknote is detected by the sensor Sn, that is, at the rising change point of the sensor Sn, the time at that time is registered at the tip time 25 shown in FIG. 3, and the storage pointer 21 is advanced by one. .

After all, in this case, steps 31 → 32
→ 33 → 36 → 40 → 41 → 49, and the process ends. Further, at the time when the rear end of the bill is detected by the sensor Sn, that is, at the falling change point of the sensor Sn, the time at that time is registered as the rear end time 27 shown in FIG. The banknote length is obtained from the time difference of and is registered in the banknote length 26. In this case, step 3
The process proceeds to 1 → 43 → 44 → 33 → 36 → 40 → 41 → 49 to complete the process.

At the time when the front end of the bill is detected by the sensor Sn + 1, that is, at the rising change point of the sensor Sn + 1, the processing pointer 22 is advanced by one. Then, when the storage pointer 21 and the processing pointer 22 coincide with each other while driving the transport path for a certain time (step 31 → 43).
→ 33 → 34 → 35 → 40), which means that the bill has normally passed between the sensors Sn and Sn + 1. Further, at the time when the rear end of the bill is detected by the sensor Sn + 1, that is, at the falling change point of the sensor Sn + 1, the spring-out abnormality report waiting flag 24 is checked and it is OFF.
End the process (steps 31 → 43 → 33 → 36 → 3
7 → 40). The above is a normal bill passage monitoring operation.

Next, FIG. 5 shows a bill of a length which may not be detected by the sensor Sn + 1 during jam checking among the bills registered by the sensor Sn based on the criteria shown in FIG. It is a figure which shows the operation | movement in a present Example, when it is an indefinite bill. Steps 31, 3
The operations 2, 43 and 44 are the same as those described above.
That is, the operation when the front end of the indefinite banknote is detected by the sensor Sn is the same as when the normal banknote is detected, and is steps 31 → 32 → 33 → 36 → 40 → 41 → 49. The operation when the rear end is detected by the sensor Sn is also the same as when normal banknotes are detected.
→ 43 → 44 → 33 → 36 → 40 → 41 → 49.

Here, since the banknotes being jam-checked are the "undetected" and "indefinite banknote" shown in FIG. 4, the rear end of the banknote is detected by the sensor Sn + 1 after passing through the sensor Sn. Steps 31 → 43 → 33 → 3
6 → 40 → 41 → 42, and in step 42,
The processing pointer 22 is incremented by 1 to indicate that the processing has been completed, and the well counter 23 is updated by “+1”. By this processing, the bill has actually passed through the sensor Sn + 1, but even if it is not detected, the jam abnormality does not occur because it has been processed. In addition, when a bill is detected by the sensor Sn + 1, the normalization is made by setting the spring-out counter 23 to "-1" without making the spring-out abnormality.

That is, when the rear end of the bill is detected by the sensor Sn + 1, steps 31 → 43 → 33 → 34.
The process is → 45 → 46 → 40, and there is no abnormality due to the spring-out counter 23 updated when the process is completed in the above process. According to the above-described embodiment, by using the spring-out counter 23, it is possible to continuously monitor the passage of bills without causing an abnormality even when an indefinite bill is detected by the sensor Sn. That is, even if an unfixed bill is detected by only the first sensor between the two sensors, the passage of the paper sheet can be continuously monitored without causing an abnormality, and thus the paper sheet is conveyed. However, there is an effect that it is possible to prevent the device from going down due to an abnormal detection by mistake, and to improve the operation rate of the device.

Next, the bill transport monitoring operation of the automatic teller machine according to the second embodiment of the present invention will be described with reference to FIGS. 4, 6, 7 and 8. In this embodiment, when the bill detected by the second sensor has a size that may not be detected in the reading cycle of the first sensor, the passage of the bill is continuously monitored without abnormality. Is. In FIG. 6, the bills that are not detected by the sensor Sn are
The case where it is detected by the sensor Sn + 1 is shown. For banknotes not detected by the sensor Sn, the sensor Sn
After the passage and before reaching the sensor Sn + 1, step 31
The processes of → 43 → 33 → 36 → 40 → 41 → 42 are performed, and in step 42, the processing pointer 22 is incremented by 1 to be processed, and the well counter 23 is updated by “+1”.

When the tip of the banknote which is not detected by the sensor Sn is detected by the sensor Sn + 1 and the storage pointer 21 ≠ the processing pointer 22, the springing abnormality report waiting flag 24 is turned "ON". In this case, step 3
The process proceeds to 1 → 43 → 33 → 34 → 45 → 47 → 40, and the process ends. When the sensor Sn + 1 detects the trailing edge of the banknote, the banknote length of the sensor Sn + 1 is the length of the banknote (the undetected and indeterminate banknotes in FIG. 4) that may not be detected by the sensor Sn. If it springs out, it is not considered abnormal. If the banknote length is equal to or larger than the maximum value of the indefinite banknote, it is determined that the banknote is abnormal. The process when the rear end of the bill is detected by the sensor Sn + 1 is step 31 → 4.
3 → 33 → 34 → 45 → 46 → 40.

As described above, by distinguishing the indefinite banknotes by the sensor Sn + 1, even when the indefinite banknotes are detected only by the sensor Sn + 1, it is possible to continuously monitor the passage of the banknotes without making an abnormality. It should be noted that the above embodiment is an example of the present invention, and it is needless to say that the present invention is not limited to this. For example, in the above embodiment, the example in which the present invention is applied to the banknote transport path in the automated teller machine is shown, but the present invention is not limited to this, and is applied to the transport control of other general paper sheets. It is possible to do.

[0022]

As described above in detail, according to the present invention, even if there is a difference in the reading result by a plurality of sensors having different reading cycles, a condition is set to ignore this, and the difference within this range is set. With regard to the above, there is a remarkable effect that it is possible to realize a paper sheet transporting device capable of improving the operating rate by operating the device without bringing it down. More specifically, according to the paper sheet conveying apparatus according to claim 1, even when an unfixed bill is detected by only the first sensor between the two sensors, the paper sheet passage monitoring is continued without abnormality. Therefore, there is an effect that it is possible to prevent the device from going down due to an abnormal detection of a paper sheet being conveyed by mistake, and to improve the operation rate of the device. Further, according to the paper sheet conveying device of the second aspect, even when the indeterminate banknote is detected by only the second sensor between the two sensors, the passage of the paper sheet can be continuously monitored without making an abnormality. Even if the paper sheet is being conveyed, it is possible to prevent an error from being detected by mistake and prevent the device from going down, thereby improving the operation rate of the device.

[Brief description of the drawings]

FIG. 1 is a diagram showing a transport path portion in an automated teller machine or the like according to an embodiment of the present invention.

FIG. 2 is a diagram showing a control block diagram of the automated teller machine according to the embodiment.

FIG. 3 is an explanatory diagram of a bill passage time registration area according to the embodiment.

FIG. 4 is an explanatory diagram of sensor double-read bill detection accuracy according to the embodiment.

FIG. 5 is an explanatory view (No. 1) of the banknote conveyance process according to the embodiment.

FIG. 6 is an explanatory view (No. 2) of the bill conveyance progress according to the embodiment.

FIG. 7 is a control flowchart (part 1) of the bill passage check according to the embodiment.

FIG. 8 is a control flowchart (part 2) of the bill passage check according to the embodiment.

[Explanation of symbols]

 1 Transport Path 2 Banknotes 3 Main Control Unit 4 Upper Device 5 Line Control Unit 6 Transport Motor Control Unit 7 Encoder 8 Sensor 9 Banknote Passage Check Unit 10 Passing Time Registration Area 21 Storage Pointer 22 Processing Pointer 23 Spouting Counter 24 Spouting Abnormality Report Waiting flag

Claims (4)

[Claims] 1. A transport mechanism for transporting paper sheets along a predetermined transport path, and a plurality of sensors arranged along the transport path for monitoring paper sheets being transported by the transport mechanism. ,
A paper sheet transporting apparatus having a time mechanism for converting the transport amount starting from the start of transport or the passage of real time into a time is provided with means for checking passage of the paper sheets, and the means is provided on the transport path. The passing time and the length of the paper sheet passed by each of the two sensors are stored, and by the stored information,
When the first sensor detects a paper sheet or a foreign substance having a length that may not be detected by the second sensor, the detection result of the paper sheet by the second sensor is ignored. Leaf carrier. 2. The sheet conveying apparatus according to claim 1, wherein the first sensor and the second sensor are optical sensors having different reading cycles. 3. A transport mechanism for transporting the paper sheet along a predetermined transport path, and a plurality of sensors arranged along the transport path for monitoring the paper sheet being transported by the transport mechanism. ,
A paper sheet transporting apparatus having a time mechanism for converting the transport amount starting from the start of transport or the passage of real time into a time is provided with means for checking passage of the paper sheets, and the means is provided on the transport path. The passing time and the length of the paper sheet passed by each of the two sensors are stored, and by the stored information,
When the second sensor detects a paper sheet or a foreign material having a length that may not be detected by the first sensor, the detection result of the paper sheet by the first sensor is ignored. A paper sheet transport device. 4. The paper sheet conveying apparatus according to claim 3, wherein the first sensor and the second sensor are optical sensors having different reading cycles.