JP4403675B2 - Bill recognition device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bill recognition device, and more particularly to a bill recognition device provided in a device that handles bills in a vending machine, a ticket vending machine, an automatic teller machine, or the like.
[0002]
[Prior art]
The vending machine is equipped with a bill recognition device that recognizes the inserted bill and purchases the product, and then stores the bill in the bill storage device. This banknote identification device is attached from the inside of the front door of the vending machine, has a banknote slot for inserting banknotes on the front, and the authenticity of the banknotes inserted from the banknote slot on the back side. A banknote recognition unit for making a determination is provided. The banknote recognition unit is mounted on the frame unit together with a banknote storage for storing banknotes for which authentication has been performed, and constitutes a banknote recognition apparatus.
[0003]
In the vicinity of the banknote insertion slot of the banknote recognition unit, a banknote feed amount determination sensor for determining the feed amount of the banknote inserted from the banknote insertion slot is provided. The bill feeding amount determination sensor includes a slit disk that is directly connected to a rotation shaft of a transport motor mechanism that transports banknotes, and a photosensor in which light emission and light receiving units are arranged across the slit disk. When the bill inserted from the bill insertion slot is transported into the bill recognition unit, the bill feeding amount determination sensor rotates the slit disk together with the rotation of the rotation shaft of the transport motor mechanism. Alternatively, the number of light pulses corresponding to the transport amount of the banknotes is generated by being shielded from light, thereby determining the banknote feed amount.
[0004]
Moreover, the banknote identification part has provided the reflection sensor in the banknote conveyance path | route, and is performing the authenticity determination of a banknote using this reflection sensor. The banknote recognition unit is configured to be openable and closable when a jam occurs or when the conveyance path or sensor is cleaned, but the open / closed detection of the banknote recognition unit is reflected to determine the authenticity of the banknote. This is done using a sensor.
[0005]
[Problems to be solved by the invention]
However, in the conventional banknote recognition apparatus, the open / close detection of the banknote recognition unit is performed using the reflection sensor for determining the authenticity of the banknote. There was a problem that even the state could not be detected.
[0006]
This invention is made | formed in view of such a point, and it aims at providing the banknote identification device which can detect the slight open state of a banknote identification part, without providing a dedicated sensor.
[0007]
[Means for Solving the Problems]
In the present invention, in order to solve the above problems, in the bill validator having a bill identifying portion that identifies a bill that is openably dosed built around a fulcrum as the conveying path is opened for conveying the banknote , the axis is also rotated after opening and closing operation of the bill identifying portion while being rotated to convey the pre-Symbol bill identifying portion bills inserted provided in a position apart from the fulcrum in the fixed portion of the A bill feeding amount determination sensor having a slit disk directly connected to a movable part of the bill discriminating part and a photosensor in which a light emitting and receiving part is arranged across the slit disk, and the photo sensor A translucent / light-shielding state detecting means for judging that the bill discriminating section is closed when repeatedly receiving optical signals corresponding to the light-transmissive state and the light-shielding state; and the photosensor The light transmission continuation state detecting means for determining that the bill identifying unit is opened when the optical signal received from the continuation indicates a light transmission state for a predetermined time or longer, and the light transmission continuation state detection means includes the There is provided a banknote recognition device comprising alarm issuing means for issuing an alarm when it is determined that the banknote recognition unit is opened.
[0008]
According to such a banknote identification device, when the optical signal output from the banknote feed amount determination sensor that determines the banknote feed amount is used, the optical signal repeats the light-transmitting state and the light-shielding state. The banknote recognition unit is determined to be closed, and when the translucent state is continued, the banknote recognition unit is determined to be open and an alarm is generated. Thereby, it is possible to add a sensor function for detecting the opening / closing of the banknote recognition unit without using a dedicated sensor by diverting the sensor for determining the amount of banknote feed, and by using a reflection sensor provided in the banknote transport path. Since it is possible to detect a slight open state of the banknote recognition unit that could not be detected by opening / closing detection of the banknote recognition unit, it is possible to prevent a banknote acceptance failure due to forgetting to close the banknote recognition unit.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overview perspective view showing a banknote recognition apparatus according to the present invention, and FIG. 2 is an overview perspective view of the banknote identification apparatus viewed from another direction.
[0010]
In the banknote recognition device 1, a banknote recognition unit 2 that takes in a banknote inserted from a banknote insertion slot provided on the front side of the vending machine and performs authenticity determination is fixed to the frame 3 so as to be freely opened and closed. The illustrated banknote recognition unit 2 shows an open state. When it is determined that the banknote inserted by the banknote recognition unit 2 is false, the transport unit reversely operates to transport the counterfeit to the banknote insertion slot and return it.
[0011]
A bill storage portion (not shown) is detachably attached to the frame 3 below the figure where the bill recognition portion 2 is attached. A temporary holding mechanism is provided between the frame 3 and the banknote storage unit to temporarily hold banknotes determined to be true by the banknote recognition unit 2. When the transaction such as purchase of goods is completed, the banknote held in the temporary storage mechanism is pushed into the banknote storage unit (not shown) and stored. Returned from the slot.
[0012]
In the vicinity of the banknote slot of the banknote identification part 2 that can be opened and closed, the slit disk 4 provided on the fixed part side is movable, and the light emitting and light receiving part is arranged so as to be sandwiched between the slit disk 4 in the closed state. A bill feeding amount determination sensor is provided that includes a photosensor 5 provided on the portion side. The slit disk 4 is directly connected to a rotation shaft of a conveyance motor mechanism that conveys banknotes, and rotates with the rotation of the conveyance motor mechanism. The photosensor 5 is attached to the opening / closing part side of the banknote recognition unit 2, and makes a contact / separation operation with respect to the slit disk 4 in accordance with the opening / closing operation of the banknote recognition unit 2.
[0013]
FIG. 3 is a view for explaining the positional relationship of the bill feeding amount determination sensor in the opened / closed state of the bill identifying unit.
The banknote recognition part 2 opens and closes around the fulcrum 6, and at that time, the photosensor 5 moves within a range of an angle θ (0 ° ≦ θ ≦ 90 °) while drawing a locus 7. In the state where the banknote recognition unit 2 is normally closed, as shown in FIG. 5A, the photosensor 5 overlaps the slit disk 4 and repeats light transmission and light shielding according to the rotation operation of the slit disk 4. To detect. On the other hand, in the state where the banknote recognition unit 2 is not completely closed, for example, the banknote recognition unit 2 is opened by the opening angle α as shown in FIG. , Located away from the slit disk 4. Accordingly, the photosensor 5 continues to transmit light. By detecting the continuation of the light-transmitting state, it can be determined that the banknote recognition unit 2 is not normally closed.
[0014]
Next, means for causing the bill feeding amount determination sensor to function as such a bill recognition unit opening / closing detection sensor will be described.
FIG. 4 is a block diagram showing the configuration of the banknote recognition unit opening / closing detection device.
[0015]
The banknote recognition unit opening / closing detection device 10 includes a translucent / light-shielding state detecting unit 11 that receives an optical signal output from the photosensor 5, a translucent state detecting unit 12, and an alarm issuing unit 13.
[0016]
The photosensor 5 outputs an off signal when a light transmission state is detected, and outputs an on signal pulse signal when a light shielding state is detected. The translucent / light-shielding state detection unit 11 of the banknote recognition part opening / closing detection device 10 receives a signal output from the photosensor 5 and repeats an on signal and an off signal, or represents an on-state representing a light shielding state. When it is a continuation of a signal, it is judged that the banknote identification part 2 is closed. The light transmission continuation state detection unit 12 detects whether or not the light transmission / light shielding state detection unit 11 has continued for a predetermined time or more when receiving an off signal indicating the light transmission state from the photosensor 5. When the signal is continuously received for a predetermined time or longer, it is determined that the bill identifying unit 2 is opened, and the alarm issuing unit 13 issues an alarm.
[0017]
Next, the flow of the opening / closing detection process of the banknote recognition part opening / closing detection device 10 will be described.
FIG. 5 is a flowchart showing the flow of the banknote recognition unit opening / closing detection process.
[0018]
This process is based on the premise that the bill recognition device 1 rotates the transport motor mechanism at a certain interval after the opening / closing operation of the bill recognition unit 2. First, it is determined whether the signal from the photosensor 5 is an ON signal, that is, whether or not the bill feeding amount determination sensor is in a light-shielded state (step S1). Here, if it is a light-shielding state, it will be judged that the banknote identification part 2 is closed, and this process will be complete | finished. If it is not in the light shielding state, whether the light transmitting / shading state in which the slit disk 4 is rotated by rotating the transport motor mechanism at a certain interval and the photosensor 5 repeats the on signal and the off signal is obtained. Determination is made (step S2). If the light transmitting / shading state is not obtained, a timer is started (step S3). Thereafter, it is determined whether or not the light is transmitted (step S4), and it is determined whether or not the timer has reached a predetermined time t or more (step S5). In this way, when the translucent state continues for a predetermined time t or longer, it is determined that the bill recognition unit 2 is open, and an alarm is issued to notify that the bill recognition unit 2 has been forgotten to be closed (step). S6). After the alarm is issued, or when the light transmitting / shading state is obtained in step S2, or when the light transmitting state is changed to the light blocking state in step S4, this processing ends at this point.
[0019]
The above processing contents can be described in a program recorded on a computer-readable recording medium in the control unit that controls the banknote recognition unit 2. By executing this program on a computer, the above processing can be realized on the computer. The program is recorded on a computer-readable recording medium, and a read-only or rewritable semiconductor memory is used as the recording medium.
[0020]
FIG. 6 is a block diagram illustrating a configuration example of a computer.
The computer 20 stores a microprocessor (CPU) 21, a ROM (Read Only Memory) 22 that stores a program describing an operating system and processing contents, and a program, operation data, and the like when the microprocessor 21 performs an operation. A RAM (Random access Memory) 23, an input / output interface circuit 24, and a bus 25 for connecting them are configured. Connected to the input / output interface circuit 24 are a photosensor 5, an opening / closing operation detection switch 26, and a motor control circuit 27 for controlling the transport motor mechanism.
[0021]
In the banknote recognition part opening / closing detection process, a banknote recognition part opening / closing detection program is read from the ROM 22, loaded into the RAM 23, and executed by the microprocessor 21. At that time, the operation of the opening / closing operation detection switch 26 is monitored to determine whether or not the bill recognition unit opening / closing detection processing mode is entered, and the processing of FIG. 5 is performed after the rotation operation of the transport motor mechanism.
[0022]
【The invention's effect】
As described above, in the present invention, the banknote recognition unit opening / closing detection sensor function is added only by adding software processing using the banknote feed amount determination sensor that is currently possessed. By sharing the bill feeding amount sensor, it is possible to suppress an increase in the cost of hardware, and bill recognition that could not be detected by opening / closing detection of the bill recognition unit using the reflection sensor provided in the bill transport path. Since it is possible to detect the slightly opened state of the banknote, it is possible to eliminate problems such as poor acceptance of banknotes due to forgetting to close the banknote identification section.
[Brief description of the drawings]
FIG. 1 is an overview perspective view showing a banknote recognition apparatus according to the present invention. FIG. 2 is an overview perspective view of the banknote recognition apparatus viewed from another direction.
FIG. 3 is a diagram illustrating a positional relationship of a bill feeding amount determination sensor in an opened / closed state of a bill identifying unit.
FIG. 4 is a block diagram illustrating a configuration of a banknote recognition unit opening / closing detection device.
FIG. 5 is a flowchart showing a flow of banknote recognition unit opening / closing detection processing.
FIG. 6 is a block diagram illustrating a configuration example of a computer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Banknote identification apparatus 2 Banknote identification part 3 Frame 4 Slit disk 5 Photo sensor 6 Support point 7 Trajectory 10 Banknote identification part opening / closing detection apparatus 11 Translucent / light-shielding state detection part 12 Translucent continuation state detection part 13 Alarm issuing part 20 Computer 21 Micro Processor 22 ROM
23 RAM
24 I / O interface circuit 25 Bus 26 Open / close operation detection switch 27 Motor control circuit

Claims (3)

In the banknote recognition apparatus provided with the banknote identification part which is comprised so that opening and closing is possible centering on a fulcrum so that the conveyance way which conveys a banknote may be opened, and inserted the banknote,
The shaft is also rotated after opening and closing operation of the bill identifying portion while being rotated to convey the pre-Symbol bill identifying portion bills inserted provided in a position apart from the fulcrum in the fixed portion of the A bill feeding amount determination sensor having a directly connected slit disk and a photosensor provided on the movable portion side of the bill discriminating unit and having a light emission and light receiving unit disposed across the slit disc,
A translucent / light-shielding state detecting means for judging that the bill identifying unit is closed when the optical signal corresponding to the translucent state and the light-shielding state is repeatedly received from the photosensor;
A light transmission continuation state detecting means for determining that the bill recognition unit is opened when the optical signal received from the photosensor continuously transmits light for a predetermined time or more;
Alarm issuing means for issuing an alarm when the light transmission continuation state detecting means determines that the bill identifying unit is opened;
A bill discriminating apparatus comprising: The translucent / light-shielding state detecting means determines that the bill identifying unit is closed when the optical signal received from the photosensor continuously indicates a light-shielding state. The banknote identification device according to claim 1. Computer
A translucent / light-shielding state detecting means for judging that the bill identifying unit is closed when receiving a signal indicating repetition of the light-transmitting state and the light-shielding state from the bill feeding amount determination sensor in conjunction with the rotation of the transport motor mechanism;
A translucent continuation state detecting means for judging that the banknote recognition unit is open when continuously receiving a signal representing the translucent state;
An alarm issuing means for issuing an alarm when the light transmission continuation state detecting means determines that the bill identifying unit is opened;
Program to function as.

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