JPH06195544A - Method and device for detecting remaining money in automatic teller machine - Google Patents

Abstract

PURPOSE:To prevent money from being misdetected owing to the influence of external light by correcting the photodetection value of a money residue detection sensor provided at a money reception and payment part according to the quantity of the external light. CONSTITUTION:Photodetection values of the paper money residue detection sensor 2 before and after paper money is discharged are compared with each other to decide that there is the paper money when the difference is larger than a predetermined prescribed value or that the paper money is abnormally discharged when not. Then a shutter motor 4 is driven to open a shutter 5 and the photodetection value of an external light detection phototransistor 3 is read. When the photodetection value is less than a prescribed value, a process for a normal external light state is performed. When the photodetection value exceeds the prescribed value, on the other hand, it is judged that the external light is too intense to perform normal paper money residue detection by the paper money residue detection sensor 2, and a process for an abnormal external light state is carried out. Namely, it is considered that the photodetection quantity of the paper money residue detection sensor 2 can not be corrected, and after the shutter 5 is closed to remove the influence of the external light, the residue of the money is detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for detecting residual money in an automatic teller machine, and more particularly to a residual money detection provided in a deposit / withdrawal port for currency such as bills and coins of the automatic teller machine. The present invention relates to a money residual detection method and device for an automated teller machine, which is suitable for preventing a situation in which a sensor malfunctions due to the influence of outside light and money cannot be detected even though money remains.

[0002]

2. Description of the Related Art In the prior art, for example, Japanese Patent Laid-Open No. 62-62
As disclosed in Japanese Patent Laid-Open No. -65188, in order to prevent the sensor output from decreasing due to dirt on the surface of the sensor and causing the sensor to malfunction, when the sensor sensitivity falls below a certain level, a currency detection threshold value. There is known a technology for accurately detecting money by switching between.

[0003]

In the above prior art, it is impossible to correct the influence of external light incident from the outside of the automatic teller machine, and the external light is incident on the light receiving element of the currency remaining detection sensor. In some cases, even though the banknotes or coins remain, the remaining may not be detected. The object of the present invention is to correct the received light value of the money residual detection sensor provided in the deposit / withdrawal port according to the amount of external light, or to close the shutter of the coin deposit / withdrawal port to remove the influence of external light. By detecting the remaining money, it is possible to prevent the wrong detection of money due to the influence of external light.

[0004]

According to the present invention, there is provided a money residual detecting device for an automatic teller machine, comprising a money residual detecting sensor having a light emitting element and a light receiving element, and a shutter for opening and closing when depositing and withdrawing money. It is applied to an automated teller machine, and an external light detection sensor for detecting the amount of external light incident on the deposit / withdrawal port is provided in order to correct the amount of light received by the light receiving element of the residual currency detection sensor. It is characterized by that.

Further, according to a first method of detecting a residual money of an automatic teller machine of the present invention, a residual currency detecting sensor consisting of a light emitting element and a light receiving element, a shutter which opens and closes at the time of depositing / withdrawing, and an incident external light quantity is detected. It is applied to an automatic teller machine equipped with a coin depositing / withdrawing port having an external light detecting sensor, and when the output of the external light detecting sensor exceeds a predetermined threshold value, the shutter is closed. It is characterized in that the influence of outside light is removed, and in this state the presence or absence of currency remains is determined by the currency residual detection sensor.

Further, a second method for detecting residual money in an automatic teller machine according to the present invention is a residual money detecting sensor comprising a light emitting element and a light receiving element, a shutter which opens and closes at the time of depositing and withdrawing money, and an external light amount which is incident. The present invention is applied to an automated teller machine equipped with a currency deposit / withdrawal port having an optical detection sensor and guidance display means for a customer, and when the output of the external light detection sensor exceeds a predetermined threshold value, In the first step of closing the shutter by displaying a message on the guidance display means to close the shutter, and in the state where the shutter is closed and the influence of external light is removed, it is determined whether or not there is money remaining by the money remaining detection sensor. In the second step and when it is determined in the second step that money remains, the shutter is opened and the money remains on the guidance display means. The third step of displaying that there is money, and the fourth step of displaying that there is at least no money remaining on the guidance display means when it is determined in the second step that no money remains. It is composed of and.

[0007]

According to the method and the device for detecting the residual money of the automatic teller machine of the present invention, the function of the external light detecting sensor provided at the coin depositing / dispensing port causes the residual light detecting sensor to receive the light depending on the amount of the external light. If the value is corrected or the outside light is abnormally large, the shutter of the coin deposit / withdrawal port can be closed to remove the influence of the outside light and detect the remaining of the money. False detection can be effectively prevented.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings. FIG. 1 is an explanatory diagram showing the configuration of the banknote deposit / withdrawal port according to the present embodiment. As shown in FIG. 1, the banknote pay-in / pay-out port 1 includes a banknote residual detection sensor 2 including a light emitting diode 2a and a phototransistor 2b in order to detect the presence or absence of a banknote 8. Further, the banknote pay-in / pay-out port 1 is provided with an external light detection phototransistor 3 in order to detect the amount of light incident from the outside when the shutter 5 is opened. Further, the banknote deposit / withdrawal port 1 is provided with a shutter 5, and the shutter 5 is opened and closed by a shutter drive motor 4. Whether the shutter 5 is in the closed position or in the open position is detected by the shutter closed position sensor 6 and the shutter open position sensor 7.

FIG. 2 is a block diagram showing the configuration of the control unit of the bill deposit / withdrawal port 1. As shown in FIG. 2, the received light amount of the banknote residual detection sensor 2 and the received light amount of the external light detection phototransistor 3 are converted into digital amounts by the A / D converter 12 and the A / D converter 13, respectively, and input to the CPU 9. To be done. The shutter 5 is opened and closed by the CPU 9 driving the shutter motor 4 via the shutter motor drive circuit 15. Further, the shutter close position sensor 6
The output of the shutter open position sensor 7 is input to the CPU 9 through the input port 14, and it is possible to detect whether the shutter 5 is in the closed position or the open position. CP
U9 is controlled by a program stored in ROM10. The RAM 11 is used as a work area for the CPU 9.

FIG. 3 is a view showing the external appearance of the automatic teller machine, and FIG. 4 is an explanatory view showing the details of the bill depositing / withdrawing mechanism portion in the automatic teller machine. In FIG. 3, 20 is an automatic teller machine, 16 is a banknote deposit / withdrawal mechanism, and 21 is a display. Further, as shown in FIG. 4, the banknote deposit / withdrawal mechanism unit 16 has, in addition to the banknote deposit / withdrawal port 1,
Discrimination unit 17 for determining the type of bill and its authenticity, transport path 1
8 and a plurality of banknote boxes 19 are provided. To explain the operation by taking a withdrawal example, the bill box 19
Banknotes are stored according to the denomination, and at the time of withdrawal, the banknotes are sent out one by one from the banknote box 19 to the transport path 18, the denomination and authenticity of the banknotes are discriminated by the discrimination section 17, and the bills are discharged to the banknote deposit / withdrawal port 1. To do. When the discharging of the designated amount of bills is completed, the shutter 5 is opened and the operator of the automatic teller machine 20 can take out the bills.

Next, with reference to the flow charts shown in FIGS. 5 to 7, the banknote residual detection control in the banknote pay-in / pay-out port 1 will be described in detail by taking a payout transaction as an example. As shown in FIG. 5, when the withdrawal transaction is started, the shutter 5 is closed in step S1, and the received light value A of the banknote residual detection sensor 2 in the state where there is no banknote in the banknote deposit / withdrawal port 1 is read. Next, in step S2, the bills are fed from the bill box 19 and the designated amount is discharged to the bill deposit / withdrawal port 1. Next, when the discharging of the banknotes is completed, the light reception value B of the banknote residual detection sensor 2 in the state where the shutter 5 is closed is read in step S3. Next, in step S4, the received light values A and B of the banknote residual detection sensor 2 before and after the banknote are discharged are compared, and if (AB) is equal to or more than a predetermined specified value, it is determined that a banknote exists. Go to step S6. If (AB) does not reach the specified value, the process proceeds to step S5, and it is determined that the bill is discharged abnormally. Next, in step S6, the received light value C of the external light detection phototransistor 3 when the shutter 5 is closed is read. Next, in step S7, the shutter motor 4 is driven to open the shutter 5,
The received light value D of the external light detection phototransistor 3 is read.
When the value of the received light value D is equal to or less than the specified value, the processing B (see FIG. 6) for normal external light is performed. If the received light value D exceeds the specified value, it is determined that the ambient light is so strong that the banknote residual detection sensor 2 cannot detect the normal banknote residual, and the processing when abnormal external light occurs (see FIG. 7). )I do.

Next, with reference to FIG. 6, the processing B when the ambient light is normal will be described. In step S10, the difference (D-C) between the received light values of the external light detection phototransistor 3 when the shutter is open and when the shutter is closed is calculated. Next, step S
11, the shutter 5 is closed and the received light value A of the banknote residual detection sensor 2 in the state without banknotes is corrected, and the shutter 5
The estimated light reception value A ′ of the banknote residual detection sensor 2 in the state where the banknote is open and there is no banknote is obtained. The estimated received light value A ′ is obtained by A ′ = A + (D−C) using the calculated value (D−C). Next, in step S12, the received light value E of the banknote residual detection sensor 2 when the shutter 5 is open is read. Next, in step S13, when the read light-receiving value E of the banknote residual detection sensor 2 and the value of the estimated light-receiving value A ′ are compared, and (A′−E) becomes equal to or less than a predetermined specified value, Judge that there is no banknote. If (A'-E) exceeds the specified value, it is determined that there is a bill, and the process returns to step S12. If it is judged that there is no bill,
In step S14, the shutter motor 4 is driven, the shutter 5 is closed, and the withdrawal transaction is completed.

Next, with reference to FIG. 7, the processing B when the external light is abnormal will be described. When the external light is strong, even if the banknote remains in the banknote dispensing port 1, the received light value of the banknote residual detection sensor 2 is saturated due to the effect of the external light, and the presence or absence of the banknote cannot be detected. . Therefore, in step S15, the message shown in FIG. 8 is displayed on the display 21 to notify the operator that the shutter 5 will be closed to confirm the remaining banknotes. Next, in step S16, the shutter motor 4 is driven to close the shutter 5 after a lapse of a predetermined time from the above display. Next, in step S17, the light reception value F of the banknote residual detection sensor 2 when the shutter 5 is closed is read. Next, in step S18, the light reception value A of the banknote residual detection sensor 2 when the shutter 5 is closed and there is no banknote residual is compared with the above-mentioned light reception value F, and the difference in the light reception value (A-F) is equal to or less than the specified value. At this time, it is determined that there is no banknote remaining, and the display shown in FIG. 9 is displayed on the display 21 in step S19, and the dispensing transaction is completed. When it is determined in step S18 that the difference (A-F) in the received light value exceeds the specified value, it is determined that the banknotes remain, and step S
The shutter 5 is opened at 20, and the display shown in FIG. 10 is displayed on the display 21 at step S21 to urge the operator to remove the bill, and the process returns to step S8 shown in FIG.

As is apparent from the above description, according to this embodiment, it is possible to correctly detect the presence / absence of banknotes in the banknote deposit / withdrawal port without being affected by external light. That is, when the influence of external light such as direct sunlight is abnormally large, even if there are banknotes in the banknote deposit / withdrawal port, it is erroneously detected that there is no banknote, and there is a problem with the operator due to closing the shutter. It can be effectively prevented.

In the above embodiment, the withdrawal transaction has been described as an example, but needless to say, it can be applied to a deposit transaction, a transfer transaction and the like. Also, needless to say
It can be applied not only to bills, but also to detection of residual coins including coins.

[0016]

According to the present invention, the amount of external light incident on the coin deposit / withdrawal port of the automatic teller machine can be measured to correct the amount of light received by the residual currency detection sensor. False detection of banknotes or coins can be prevented.

When the external light is abnormally strong due to direct sunlight or the like and the amount of light received by the currency residual detection sensor cannot be corrected, the shutter is closed to remove the influence of the external light, and then the currency residual detection is performed. By performing the above, normal residual detection can be performed. In addition, at that time, by displaying a message informing the operator that the shutter will be closed once on the display unit, and closing the shutter to detect the residual money, the trouble with the operator is eliminated and the normal residual Detection can be performed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a configuration of a banknote deposit / withdrawal port according to an embodiment.

FIG. 2 is a block diagram showing a configuration of a control unit of the banknote deposit / withdrawal port shown in FIG.

FIG. 3 is a diagram showing an appearance of an automated teller machine.

FIG. 4 is an explanatory view showing details of a bill depositing / withdrawing mechanism section in the automatic teller machine.

FIG. 5 is a flowchart showing details of banknote residual detection control at a banknote deposit / withdrawal port of the automatic teller machine.

FIG. 6 is a flowchart showing details of banknote residual detection control at a banknote deposit / withdrawal port of the automatic teller machine.

FIG. 7 is a flowchart showing details of banknote residual detection control at a banknote deposit / withdrawal port of the automatic teller machine.

FIG. 8 is a display example on the display of the automatic teller machine.

FIG. 9 is a display example on the display of the automatic teller machine.

FIG. 10 is a display example on the display of the automatic teller machine.

[Explanation of symbols]

1 ... Banknote deposit / withdrawal port, 2 ... Banknote residual detection sensor, 3 ... External light detection phototransistor, 4 ... Shutter motor, 5 ... Shutter, 6 ... Shutter open position sensor, 7 ... Shutter closed position sensor, 8 ... Banknote, 9 … CPU, 10… ROM, 11
... RAM, 12, 13 ... A / D converter, 14 ... Input port, 15 ... Shutter motor drive circuit, 16 ... Banknote deposit / withdrawal mechanism section, 17 ... Discrimination section, 18 ... Conveyance path, 19 ... Banknote box, 20 ... Cash Automatic transaction device, 21 ... Display.

Claims (3)

[Claims] 1. A currency residual detection device for an automatic teller machine having a money deposit / withdrawal port having a currency residual detection sensor composed of a light emitting element and a light receiving element and a shutter that opens and closes when depositing / withdrawing money. In order to correct the amount of light received by the light receiving element, an external light detection sensor for detecting the amount of external light incident on the coin deposit / withdrawal port is provided. 2. An automatic cash dispenser having a coin deposit / withdrawal port having a currency residual detection sensor including a light emitting element and a light receiving element, a shutter that opens and closes when depositing and withdrawing money, and an external light detecting sensor that detects the amount of incident external light. In the currency residual detection method of the transaction device, when the output of the external light detection sensor exceeds a predetermined threshold value, the shutter is closed to remove the effect of external light, and the currency residual detection sensor determines whether or not currency remains. A residual money detection method for an automated teller machine, characterized by: 3. A coin deposit / withdrawal port and a guidance display means for a customer, which has a currency residual detection sensor including a light emitting element and a light receiving element, a shutter that opens and closes when depositing and withdrawing money, and an external light detecting sensor that detects the amount of incident external light. In the residual money detection method of the automatic teller machine provided, when the output of the external light detection sensor exceeds a predetermined threshold value, a message to the effect that the shutter is closed is displayed on the guidance display means, and the shutter is closed. Step 1 and the second step of determining whether or not there is money remaining by the money remaining detection sensor while the shutter is closed and the influence of external light is removed.
In the second step, the shutter is opened, and the guidance display means displays that money remains when the remaining money is determined in the second step. When it is determined that there is no remaining money, the guidance display means comprises at least a fourth step of displaying that there is no remaining money, and the remaining money detection of the automatic teller machine. Method.