JPH01234988A - Detector for fault in carrying sheets - Google Patents

Abstract

PURPOSE:To reduce the load of software for a sheet carrying system by detecting a carrying fault in a carrier from the operation of a circuit. CONSTITUTION:An excess sheet detecting means 103 detects that the number of sheets on the carrier exceeds a prescribed number on the basis of the sensing states of 1st and 2nd sensing means 101, 102. An excess time detecting means 104 detects that the carrying time required for the carrying of sheets exceeds a prescribed time based on the output from the 1st sensing means 101. A deciding means 105 decides whether a carrying fault is generated or not on the basis of the outputs of both the means 103, 104. Consequently, the useless operation of the circuit can be removed and the load of the software on the sheet carrying system side can be reduced.

Description

[Detailed Description of the Invention] [Summary] Regarding a paper sheet conveyance failure detection device, the purpose is to eliminate wasteful circuits and reduce the burden on software. A first sensing means and a second sensing means are provided corresponding to each of the two points and detect the passage of paper sheets, and the conveyance path is determined based on the sensing state of the first sensing means and the second sensing means. a number excess detection means for detecting that the number of paper sheets has exceeded a predetermined number; and based on the output of the first sensing means, the transport time required to transport the paper sheets has exceeded a predetermined time. The apparatus is configured to include a time-exceeding detection means for detecting this, and a determining means for determining whether or not a conveyance failure has occurred based on the outputs of the number-of-sheets-excess detection means and the time-excess detection means.

[Industrial application field]

The present invention relates to a paper sheet conveyance failure detection device, and more particularly to a paper sheet conveyance failure detection device that eliminates wasteful circuitry and reduces the burden on software on the paper sheet conveyance system side. .

[Conventional technology]

BACKGROUND ART A system for conveying paper sheets such as banknotes and securities is equipped with a conveyance failure detection device in order to detect when the paper sheets being conveyed have caused a conveyance failure such as jamming.

For example, automatic transaction equipment installed at financial institutions (
Let us consider a conveyance failure detection device in a system that conveys banknotes inside an ATM) or a cash dispenser (CD).

FIG. 6 is a configuration diagram of a conventional conveyance failure detection device.

A sensor 601 installed at the start point of the conveyance path and a sensor 602 installed at the end point of the conveyance path detect banknotes conveyed by the conveyance unit 603.
The sensor 601. The control unit 604 controls the stopwatches 605 to 6 based on the output of the sensor 602.
Controls the start and end of time measurement in 08. Thereby, the stopwatches 605 to 608 measure the time taken for each banknote to be conveyed along the conveyance path. Also, counter 6
09, the number of banknotes that are simultaneously present between the sensor 601 and the sensor 602 is counted.

Here, due to constraints such as the speed at which the banknotes are fed out in the transport unit 603 and the speed at which the banknotes are transported, three
It is assumed that up to one bill is transported normally.

For example, when the first banknote is transported by the transport unit 603 and enters the sensing range of the sensor 601, the control unit 604 starts timing the stopwatch 605 based on the output of the sensor 601, and adds 1 to the count of the counter 609. . next,
When the second banknote enters the sensing range of the sensor 601, the control unit 604 causes the stopwatch 606 to start measuring time, and adds 1 to the count of the counter 609. On the other hand, when the first banknote enters the sensing range of the sensor 602, the control unit 604 stops the time measurement of the stopwatch 605 based on the output of the sensor 602, and subtracts 1 from the count of the counter 609.

In this way, the stopwatches 605 to 608 measure the transport time for each banknote to be transported, and when the transport time exceeds a certain time, the counter 60
When the count of 9 becomes 4 or more, the software of the bill conveyance system detects this and determines that a conveyance failure has occurred.

[Problem to be solved by the invention]

By the way, in the above-mentioned conventional method, since the transport time is measured for each banknote to be transported, the number of banknotes that may exist between the sensor 601 and the sensor 602 on the transport path is equal to the number of banknotes. It is necessary to prepare a stopwatch to measure time, but since not all stopwatches are always used, it is wasteful to have a large number of stopwatches. Furthermore, in order to operate a large number of stopwatches in parallel, a program for managing the stopwatches is required on the banknote conveyance system side, which poses a problem in that the burden on the software increases.

The present invention was created in view of the above points, and an object of the present invention is to provide a paper sheet conveyance failure detection device that eliminates unnecessary circuitry and reduces the burden on software.

[Means to solve the problem]

FIG. 1 is a block diagram of the principle of a paper sheet conveyance failure detection device according to the present invention.

In the figure, a first sensing means 101 and a second sensing means 1
02 are provided corresponding to at least two points on the conveyance path along which paper sheets are conveyed, and detect the passage of paper sheets.

Based on the sensing states of the first sensing means 101 and the second sensing means 102, the number excess detection means 103 detects that the number of sheets on the conveyance path has exceeded a predetermined number.

The time excess detection means 104 detects, based on the output of the first sensing means 101, that the transport time required to transport the paper sheet has exceeded a predetermined time.

The determining means 105 determines whether or not a conveyance failure has occurred based on the outputs of the number excess detection means 103 and the time excess detection means 104.

Therefore, as a whole, the configuration is such that a conveyance failure in the conveyance path is detected by the operation of the circuit, and the burden on the software of the paper sheet conveyance system is reduced.

[Function] The first sensing means 101 senses paper sheets passing through a certain position on the conveyance path. Further, another second sensing means 102 is
Detects paper sheets passing at different positions on the conveyance path.

The number excess detection means 103 detects two points on the conveyance path monitored by the first sensing means 101 and the second sensing means 102 based on the output of the first sensing means 01 and the output of the second sensing means 102. The number of paper sheets present in between is counted, and it is detected from the count that the number has exceeded a predetermined number. The time excess detection means 104 measures the elapsed time after the paper sheet passes the point corresponding to the first anger detection means 101 on the conveyance path based on the output of the first sensing means 101, and measures the elapsed time. It is detected that the conveyance time has exceeded a predetermined time. The determination unit 105 determines a conveyance failure based on the detection result by the number excess detection unit 103 and the detection result by the time excess detection unit 104.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 2 shows the configuration of the conveyance failure detection device in the first embodiment of the present invention. Further, FIG. 3 shows the configuration of a conveyance failure detection device in a second embodiment of the present invention.

Here, the correspondence between the embodiment of the present invention and FIG. 1 will be shown.

The first sensing means 101 includes a sensor 201 and a sensor 30.
This corresponds to 1,302.

The second sensing means 102 includes a sensor 202 and a sensor 30.
This corresponds to 2,312.

The excess number of sheets detection means 103 corresponds to the counter 203 and the counters 303 and 313.

The time exceedance detection means 104 corresponds to the timer 204 and the timers 304 and 314.

The determining means 105 corresponds to the OR gate 205 and the OR gate (305; 315).

Examples of the present invention will be described below assuming that the correspondence relationship as described above exists.

First, a first embodiment of the present invention will be described based on the drawings.

In FIG. 2 of FIG.
A sensor 2 that optically detects the passage of banknotes at the
01, a sensor 202 that detects the passage of banknotes at the end point B of the transport path AB, a counter 203 that counts the banknotes present on the transport path AB based on the outputs of the sensors 201 and 202, and the sensor 201. It is formed of a timer 204 which sets a limit on the transport time of the banknotes on the transport path AB based on the output from the counter 203, and an OR gate 205 which takes the logical sum of the outputs of the counter 203 and the timer 204.

The IL 2 U column 2 immersion line (company) 1 night counter 203 has an input terminal I3. ) When "1" is input to the input terminal, 1 is added to the count, and when "1'" is input to the input terminal ■, -), the count is subtracted by 1. When the count exceeds a certain value, the count is increased by 1. It is configured to output "'1°". When the count reaches "0", it outputs "'0" from the output terminal 0□.

Here, assuming that the number of banknotes that can exist on the conveyance path AB without causing a conveyance failure is 4 due to the distance of the conveyance path AB and the conveyance speed, the output terminal OI is outputted when the count is ``5'' or more. It is assumed that "l" is output when

The timer 204 of the i-3 timer is configured so that the output "1'" from the sensor 201 is S
Each time an input is made to the terminal, a predetermined time is set as a grace time, and at the same time, the elapsed time is started to be measured. When the remaining time after subtracting the elapsed time from the grace time reaches O, "1'° is output from the output terminal 0. is configured to print.

Furthermore, when 'O'' is input to the R terminal, the grace period is reset.

Here, depending on the distance of the conveyance path AB and the conveyance speed, it is assumed that the time required for the banknote to be conveyed on the conveyance path AB is 400 meters, and the timer 204 is set to 500 m5 as a grace period.

In the above-described configuration of ii 1-1, the operation will be explained in different cases.

ii-1 Correct Fig. 4 is a timing diagram illustrating the normal operation of the conveyance failure detection device according to the embodiment shown in Fig. 2.

Reference will now be made to FIGS. 2 and 4.

The line graph in FIG. 4 represents the remaining time of the timer 204.

Here, the time interval for sending banknotes to the conveyance path is 100m5.
shall be. In other words, under normal conditions, the sensor 201
And the sensor 202 senses banknotes every 100m5. In the example shown in FIG. 4, eight banknotes are being conveyed continuously.

When a banknote is conveyed to the sensing range of the sensor 201, the sensor 201 senses the banknote and outputs ``1'', and the counter 203 increments the count by 1.

At the same time, a grace period of 500 g is set in the timer 204, and the timer 204 starts measuring the elapsed time.

When 100 m5 has elapsed, the next banknote enters the sensing range of the sensor 201, the count on the counter 203 is further incremented by 1, and the timer 204 is again set with a grace period of 500 gourds and starts counting the elapsed time again.

This is equivalent to measuring the time required for all the banknotes to pass through the starting point of the conveyance path and setting a grace period to this time. For example, from the line graph in Figure 4, it can be seen that the time required to properly convey 8 banknotes is 1100ms, but as described above, the total conveyance time is 1200ms with a margin of 100m5.
This is equivalent to setting a grace period of 5.

4 after the first bill passes through the sensing range of the sensor 201
After 00 m5 has elapsed, the fifth bill enters the sensing range of sensor 201, while the first bill enters the sensing range of sensor 202. Based on the output of the sensor 201, the counter 20
The count of 3 is incremented by 1, but at the same time it is subtracted by 1 due to the output of the sensor 202, so the count of the counter 203 is “
4”.

After the last bill passes through the sensing range of the sensor 201,
Each time a banknote enters the sensing range of the sensor 202, the count on the counter 203 is decremented by one.

When the count of the counter 203 becomes “0”, the timer 2
04, a grace time of 500 m5 is set again and the state returns to the initial state.

FIG. 5 is a timing diagram illustrating the operation when a conveyance failure occurs in the conveyance failure detection apparatus according to the embodiment shown in FIG. 2.

Reference will now be made to FIGS. 2 and 5.

FIG. 5(a) shows a case where a conveyance failure is detected by the timer.

In the figure, four bills have passed through the sensing range of sensor 201, but only three bills have passed through the sensing range of sensor 202.

If the fourth bill does not enter the detection range of the sensor 202 even after the grace period of 500 m5 has passed since the fourth bill passed through the detection range of the sensor 201, the remaining time of the timer 204 becomes 0°, and the timer 204 outputs “1” from output terminal 0.

In this way, it is detected that at least one of the banknotes that passed through the starting point of the conveyance path did not pass through the end point of the conveyance path within the grace period.

The OR gate 205 is connected to the output terminal 01 of the counter 203.
Since the output of the timer 204 and the output of the output terminal O of the timer 204 are ORed, the output of the OR gate 205 becomes "1P",
It is possible to detect that a conveyance failure has occurred.

FIG. 5(b) shows a case where a conveyance failure is detected by the counter.

In the figure, 11 bills have passed through the sensing range of sensor 201, but the seventh bill has not passed through the sensing range of sensor 202.

At this point, the count of the counter 203 becomes ° "5",
Since the number of banknotes exceeds the number that can be normally transported by the transport path, the counter 203 outputs "1°" from the output terminal 01.

As a result, the output of the OR gate 205 becomes 1'', so that a conveyance failure can be detected.

LLL! Summary In this way, the timer 204 starts at the starting point A of the transport path AB.
The counter 203 detects that at least one of the passed bills has not passed the end point B within the grace period, and the counter 203 detects that there are more than the allowable number of bills on the conveyance path AB. By calculating the logical sum of the outputs of the timer 204 and the counter 203 using the OR gate 205, it is possible to detect a conveyance failure occurring between the conveyance path AB.

FIG. 3 is a configuration diagram of a conveyance failure detection device according to a second embodiment.

In FIG. 3, the conveyance failure detection device shown as the second embodiment has a sensor 312 that detects a banknote at the end point C of the conveyance path BC, and a sensor 312 that detects a banknote at the end point C of the conveyance path BC, and a sensor 302 and a sensor 312. a counter 313 that counts the banknotes present on the transport path BC based on the output of the sensor 302; a timer 314 that sets a limit on the transport time of banknotes on the transport path BC based on the output of the sensor 302; It is formed by adding an OR gate 315 that ORs the outputs of the timer 314.

Here, the sensor 302 is configured to sense banknotes leaving the transport path on the transport path AB, and to sense banknotes entering the transport path on the transport path BC.

The sensor 302 that detects the passage of a banknote at the point Φ B of L 2 subtracts 1 from the count of the counter 303 based on its output, and on the other hand,
Add 1 to the count of counter 313.

This causes sensor 302. Sensor 312. counter 3
13. Timer 314. The OR gate 315
By operating in the same manner as in the embodiment, a conveyance failure occurring on the conveyance path BC is detected.

In this way, OR gate 305 and OR gate 3
15, it is possible to detect a conveyance failure occurring between the conveyance paths AB and between the conveyance paths BC, respectively.

■、B・ノ In the above-mentioned embodiments of the present invention, a conveyance failure detection device in a banknote conveyance system used in an automatic transaction machine (ATM) etc. was considered. It can be applied to any device that conveys paper sheets. Furthermore, the length of the conveyance path, the number of sensors, and their installation positions are not limited.

Furthermore, in "■, Correspondence between Examples and FIG. 1",
Although the correspondence between the present invention and the embodiments has been described, those skilled in the art can easily imagine that the present invention is not limited to this and that there are various modifications.

〔Effect of the invention〕

As described above, according to the present invention, a conveyance failure can be detected by the operation of a device configured with a small number of circuit elements. This makes it possible to eliminate wasteful circuitry and reduce the burden on the software of the sheet conveyance system, which is extremely useful in practice.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of a paper sheet conveyance failure detection device according to the present invention, FIG. 2 is a block diagram of the configuration of a conveyance failure detection device according to a first embodiment of the present invention, and FIG. FIG. 4 is a timing diagram showing the normal operation of the embodiment shown in FIG. 2. FIG. 5 is a block diagram of the configuration of the conveyance failure detection device according to the embodiment. FIG. 6 is a block diagram of the configuration of a conventional transportation failure detection device. In the figure, 101 is a first sensing means, 102 is a second sensing means, 103 is a number excess detection means, 104 is a time excess detection means, 105 is a determination means, 200.300.603 is a transport unit, 201.202,301 ,302,312.601.6
02 is a sensor, 203.303, 313, 609 is a counter, 204.
304, 314 are timers, 205, 305, 315 are OR gates, 604 is a control unit, and 605, 606, 607, 608 are stopwatches. ￥'12! Punu [To L I row C @Fig. 3

Claims (1)

[Claims] (1) At least 2 on the conveyance path where paper sheets are conveyed
A first sensing means (101) and a second sensing means (102) are provided corresponding to each of the points and detect the passage of the paper sheet, and the first sensing means (101) and the second sensing means Sensing means (
102), a number excess detection means (103) for detecting that the number of paper sheets on the conveyance path has exceeded a predetermined number, based on the output of the first sensing means (101); , a time excess detection means (104) for detecting that the conveyance time required to convey paper sheets has exceeded a predetermined time; and the number excess detection means (103) and the time excess detection means (104). A detection device for a paper sheet conveyance failure, characterized in that it is configured to include: determination means (105) for determining whether or not a conveyance failure has occurred based on an output;