JPS6225228B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a control method for a banknote identification device, and in particular, the present invention relates to a control method for a banknote identification device, and in particular, a control method for controlling a banknote identification device in which banknotes that have been counted and determined to be genuine banknotes are returned to a customer side together with subsequently inserted banknotes. The present invention relates to a control method for a banknote identification device that prevents the banknotes from being lost and releases counted genuine banknotes from the subsequently inserted banknotes and stores them therein.

[Prior Art] A general banknote identification device includes an escrow mechanism that temporarily holds banknotes determined to be genuine banknotes in preparation for return at the customer's request. Also,
Banknotes determined to be counterfeit are returned to the customer, but
Regardless of the return operation, it sometimes occurs in such identification devices that a genuine banknote that has been previously inserted and countered is taken back for a subsequently inserted banknote. Such a problem tends to occur especially when the storage box for storing genuine banknotes is full, and the rear end of the banknote that was inserted into the storage box from the temporary holding position may end up on the conveyance path. If the banknote remains in the terminal section of the banknote, when the next inserted banknote is returned, the leading edge of this banknote overlaps with the rear end of the banknote mentioned above, and the banknote is brought back to the counted banknote together with the returned banknote. It is.

Therefore, as a means to prevent such accidents from occurring, it is possible to use a banknote validator proposed by the applicant in Japanese Patent Application No. 153003/1983.

In other words, this banknote validating machine is configured to identify the length and thickness of the banknote even when the banknote is returned, and if there is a movement to return the banknote as described above, an abnormality in length or thickness is detected. do. When this abnormality is detected, the banknote return operation is immediately stopped at that position, the banknote is held as it is, and an abnormality signal is output to the outside.

According to such a configuration, if a counted genuine banknote is about to be taken back by the return operation of the next inserted banknote, the return operation is immediately stopped, so that the counted genuine banknote is replaced by a counterfeit banknote. There's no chance that you'll be sent back with it.

However, when such a banknote validating machine stops the return operation, it is difficult to determine whether the two banknotes, including the one being taken back, were inserted by the same customer or whether the return operation was stopped. Since it is impossible to tell whether the banknotes that were lost and the banknotes that were being taken back were inserted by another customer, troubles are likely to occur between the banknotes and the customer.

In addition, since such a device suspends operations such as receiving bills as an abnormal state until these two bills are removed, this affects the operating rate of the entire system equipment equipped with such a bill validator.

[Problems to be Solved by the Invention] The purpose of the present invention is to solve such problems and to separate only the banknotes that need to be returned from the counted true banknotes that are being taken back and return them. Another object of the present invention is to provide a control method for a banknote identification device that reduces the causes of disputes with customers and does not affect the operating rate of system equipment.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a conveyance means capable of forward and reverse conveyance, and an identification system capable of identifying the authenticity of banknotes conveyed by the conveyance means. It has a device that transports only banknotes that are recognized as genuine by the recognition device to a temporary holding position behind the recognition device, stops them once, and then sends them to the safe at the rear according to the receipt signal. In a system in which banknotes are conveyed and stored, and then stopped when a refund signal is issued, the banknotes are reversely conveyed and returned. When the banknote is reversely conveyed to be returned, if it is identified as a fake by the identification device, the banknote is forwardly conveyed to a position a predetermined distance behind the holding position, and then reversely conveyed. The invention is characterized in that it includes means for controlling the item so that the item is returned after the item has been returned.

[Function] According to the control system of the banknote recognition device of the present invention, the banknotes that are recognized as genuine by the recognition device are further conveyed forward and kept stopped at a holding position behind the recognition device, where they are stored. If there is a gold signal, it will be stored in a safe further back during forward transport, but if a refund signal is received, the authenticity will be identified by the identification device again during reverse transport, and it will be identified as true during forward transport. The fact that a stored banknote is identified as a fake during reverse transportation means that this banknote is trying to bring back a banknote that should have been stored earlier. Therefore, in the present invention, in this case, when the banknote is identified as a fake, the banknote is once again forwardly conveyed from the holding position to a predetermined position further back, and then reversely conveyed again to return it. That is, by forwardly transporting the banknotes to a predetermined position further behind the holding position, it is possible to release the preceding banknotes that are about to be taken back from overlapping with the banknotes to be returned and return them to the safe.

[Example] The present invention will be described in detail below with reference to the drawings.

FIGS. 1A and 1B show an outline of a banknote recognition device according to the present invention. In FIG. (not shown) to the conveying path 4. FIG. 1B shows various detection sensors arranged on the conveyance path 4, where 5 and 6 are position detection sensors placed symmetrically near the entrance of the conveyance path 4, 7 is a thickness detection sensor, and 8 is a thickness detection sensor. Pattern detection sensors 9 and 10 are position detection sensors.

Here, the banknote 3 guided to the conveyance path 4 is identified by, for example, the position detection sensors 5, 6 and 9, the thickness detection sensor 7, the pattern detection sensor 8, etc., and the rear end of the banknote 3 is detected by position detection. Immediately after passing the sensor 9 position, it is temporarily put on hold. If the identification result is "true," the banknotes held at this position are guided to the banknote storage box by the continuous normal rotation of the conveyance means by a control signal that instructs collection.
If it is a control signal that instructs to store it in a free fall and return it, it is returned to the insertion slot 2.

Further, if the discrimination result is "false", the conveying means is immediately reversed and the counterfeit bill is automatically returned to the insertion slot 2. However, when returning these bills 3, the position detection sensors 5, 6, 9 The structure is such that the length, thickness, etc. are detected again by 10, the thickness detection sensor 7, and the like.

Therefore, during this return operation, as shown in FIG. 2A, the genuine banknotes 3A that have already been counted are brought back toward the insertion slot 2 by the newly inserted returned banknotes 3B in the holding position. Assuming that this abnormal operation is caused by the above-mentioned sensors 5 to 7, 9,
and 10 etc., it is detected as an abnormality in length or thickness. Upon detection of this abnormal operation, the reverse rotation of the conveying means, which is the return operation, is immediately stopped, and the return operation is changed to normal rotation, and when the rear end of the return bill 3B reaches a position past the position detection sensor 9 by a predetermined length L, the return operation is resumed. Stop the conveying means (see Figure 2C).

In setting this length L, it is anticipated that the rear end of the genuine banknote 3A will be released from the end portion 4A of the conveyance path 4 in advance. Therefore, as shown in FIG. 2C, only the genuine banknotes 3A should be separated from the returned banknotes 3B and stored in the storage box 11.
B remains held by the conveyance means of the conveyance path 4. Therefore, from this state, the operation is switched again to the return operation, and the sensors 5 to 7, 9, 10, etc. detect the presence or absence of an abnormal operation, and the genuine banknote 3 has already been returned.
If A is separated from the return banknote 3B and stored, only the return banknote 3B is returned as is.

FIG. 3 shows an example of a control circuit used in the banknote identification device 1 according to the present invention, where 20 is
During normal rotation and reverse rotation of the conveyance means, that is, during normal banknote discrimination and when returning banknotes including detection of abnormal operation, the position detection sensors 5, 6, 9, and 10, the thickness detection sensor 7, the pattern detection sensor 8, etc. This is an identification circuit that identifies banknotes 3 by output.

Reference numeral 21 denotes a reference clock generation circuit that generates clock pulses proportional to the rotational speed of a transport motor (not shown), and supplies the clock pulses to the identification circuit 20 and the abnormal return control circuit 22. 23
is a forward/reverse control circuit that rotates the transport motor forward or reverse in response to requests from other circuits.

The banknotes 3 currently being transported by the forward rotation of the transport means
is judged to be a genuine banknote 3A by the identification circuit 20, and when there is a receipt signal in the external signal processing circuit 24, the forward/reverse control circuit 23 is commanded to rotate forward, and the external signal When the processing circuit 24 receives a refund signal, the control circuit 23 is instructed to reverse the rotation. If it is determined that the bill is a counterfeit bill, the forward/reverse control circuit 23 directly reverses the conveying means, but if an abnormal operation detection signal is output from the identification circuit 20 at this time, the abnormal return control circuit 22 is activated. .

Thus, the abnormal return control circuit 22 instructs the forward/reverse rotation control circuit 23 to switch from reverse rotation to forward rotation,
When the identification circuit 20 detects that the banknote 3 has passed the position detection sensor 9, it immediately starts counting pulses from the clock generation circuit 21. 25 is a predetermined distance L after the banknote 3 passes the position detection sensor 9
This is a setting circuit provided in order to maintain the above-mentioned forward rotation in the control circuit 23 via the control circuit 22 until the clock moves forward, and in this setting circuit 25, the distance L is set to a value converted to the reference clock number. When the count value in the control circuit 22 reaches a set value, the forward/reverse rotation control circuit 23 is commanded to stop forward rotation, and then commanded to reverse rotation, which is a return operation.

[Effects of the Invention] As described above, according to the present invention, the returned banknotes are identified by the identification device again during the banknote return operation, and if the banknotes are identified as fake during this recognition, It was determined that the returned banknote was an abnormal operation that brought back genuine banknotes that had already been stored, and the return operation was immediately stopped, the conveyance device was changed from reverse conveyance during return to normal conveyance during storage, and then stopped. By feeding both banknotes a predetermined distance further from the position in the storage direction, the genuine banknotes that were about to be taken back are released from the returned banknotes, and the return operation is then started again. It is possible to prevent the abnormal operation of bringing back genuine banknotes during the return operation of the banknote without stopping the banknote recognition device, which is effective in avoiding troubles with customers, and furthermore, does not reduce the operating rate of the entire device. do not have.

Moreover, by being able to prevent such abnormal operations, it is possible to prevent intentional mischief intended to take customers back.

[Brief explanation of the drawing]

FIGS. 1A and B are side views showing an example of the configuration of the banknote identification device according to the present invention and a layout diagram of sensors arranged on the conveyance path thereof, and FIGS. 2A, B, and C are return views in the banknote identification device according to the present invention. FIG. 3 is an explanatory diagram showing a state in which an abnormal operation occurs to bring back banknotes that have already been counted, a state in which the conveyance means is stopped upon detection of the abnormal operation, and a state in which the counted banknotes are released due to the feeding operation of the conveyance means again. FIG. 2 is a block diagram showing an example of a control circuit used in the banknote identification device according to the present invention. 1...Banknote identification device, 2...Insertion slot, 3...Banknote, 3
A... True banknote, 3B... Returned banknote, 4... Conveyance path, 4A
...Terminal section, 5, 6... Position detection sensor, 7... Thickness detection sensor, 8... Pattern detection sensor, 9, 10... Position detection sensor, 11... Storage box, 20... Identification circuit, 2
DESCRIPTION OF SYMBOLS 1... Reference clock generation circuit, 22... Abnormal return control circuit, 23... Forward/reverse control circuit, 24... External signal processing circuit, 25... Setting circuit.

Claims (1)

[Scope of Claims] 1. A banknote having a conveyance means capable of forward and reverse conveyance and an identification device capable of identifying authenticity of banknotes conveyed by the conveyance means, and a banknote that is identified as genuine by the recognition device. Only the banknotes that have been collected are forwardly conveyed to a temporary holding position behind the identification device, and then stopped, and upon a collection signal, the banknotes are further forwardly conveyed to a rear safe and stored therein, and upon a refund signal, In the device in which the banknotes once stopped are transported back and returned, the identification device is configured to be able to identify the authenticity of the banknotes that are transported in the reverse direction, and the banknotes are returned. When transported in reverse,
Control means is provided for controlling such that when the banknote is identified as a fake by the identification device, the banknote is forwardly conveyed to a position a predetermined distance behind the holding position, and then reversely conveyed and returned. A control method for a banknote identification device characterized by: