KR20070067318A - Control method of check sensing photo sensor for automated teller machine - Google Patents

Abstract

A method for controlling a bill detecting photo-sensor of an ATM(Automated Teller Machine) is provided to reduce the turn-on time of a light emitting element by turning on the light emitting element within an allowable time range that a light receiving element enables to detect bills, in consideration of the operation period and time of the light receiving element. A method for controlling a bill detecting photo-sensor of an ATM is composed of a step of sensing the bill receiving and drawing operations through a light receiving element by turning on a light emitting element in receiving an operation command from a main controller(S101,S102) and a step of turning off the light emitting element when operations for an operation command are finished and then transmitting the execution result to the main controller(S103). In a step of sensing the bill receiving and drawing operations, the light emitting element is turned on at a period of reading the light receiving element and turned off at a period of not reading the light receiving element.

Description

Control method of check sensing photo sensor for automated teller machine}

1 is a schematic diagram illustrating the arrangement of sensors on a check deposit and withdrawal transfer path in a conventional check and teller machine;

2 is a control circuit diagram of the sensors illustrated in FIG. 1;

3A is a flowchart illustrating a method of controlling a photo sensor for detecting banknotes of a financial automatic machine according to the present invention. In particular, FIG. 3B is a flow diagram illustrating an interrupt routine of a timer for controlling a light emitting diode of FIG. 3A;

4 is a time chart of operation of the photosensor according to the present invention and the prior art.

<Description of the symbols for the main parts of the drawings>

10-check and teller machine, 11-check and teller machine,

12-check in, 13-deposit check,

14-deposit check storage, 15-withdrawal check storage,

16-withdrawal check withdrawal path, 17-check withdrawal outlet,

18-guide roller, 19-printhead,

20-Image sensor, S1 to S12-Photo sensor.

The present invention relates to a method of controlling a photo sensor for detecting bills of a banknote automatic teller machine for controlling an operation of a photo sensor for detecting a transfer state of bills to be received and withdrawn when cashing or depositing bills such as cash or check in the automated teller machine. More particularly, the present invention relates to a photo sensor control method for detecting banknotes of a banking automated machine to efficiently control the operating time of the photo sensor to extend the life of the photo sensor.

In the automatic teller machine, which is a device designed to provide unmanned services, except consulting services, quickly and conveniently without regard to financial services, banknotes such as cash or check can be automatically deposited or withdrawn. Cash machines or check dispensers.

Figure 1 shows a schematic diagram of a conventional check deposit and withdrawal machine, in particular showing the arrangement of the sensors installed on the check deposit and withdrawal transfer path.

As shown in the accompanying drawings, the check deposit and withdrawal machine 10 includes a check deposit outlet 11, a check inlet entrance 12, a deposit check inlet passage 13, a deposit check storage unit 14, a withdrawal check storage unit 15 , Withdrawal check passage 16, check discharge outlet 17, etc., adjacent to the deposit check passage 13 and withdrawal check delivery path 16 to smoothly transfer the checks to and from the destination A plurality of guide rollers 18 for guiding the information, a printhead 19 for printing predetermined details such as endorsements on checks and withdrawals, and a MICR character printed on the bottom of the checks being withdrawn and sent are transmitted to the controller. An image sensor 20 or the like is installed.

In addition, adjacent to the deposit check receipt passage 13 and the withdrawal check withdrawal passage 16 is provided with a variety of sensors for detecting whether the check to be withdrawn or withdrawn smoothly or whether the normal operation of the device. As the sensor, a photo sensor composed of a light emitting element and a light receiving element is often used, and the photo sensor has a contactless detection method, and a light emitting element is mainly used as a light emitting element, and the light emitted is received by the light receiving element. As a result, not only the presence or absence of objects, whether they pass through them, but also large and small objects, colors, and contrasts can be detected.

The photosensor is provided with the light emitting element and the light receiving element facing each other on the same optical axis, and a transmissive photo sensor and a light emitting / receiving element that detect and output a change in the amount of light caused by a detection object passing therebetween. There is a mirror reflection type photosensor that detects and outputs a change in the amount of reflected light caused by the detection object passing between the photo sensor and the mirror reflector, which is commonly configured as a light receiving element.

In the check deposit and withdrawal machine 10 shown in Figure 1 is installed on the entrance sensor (S1), the deposit check entry passage 13 for detecting that the check is inserted into the check inlet 12, the check is a MICR head and MICR and CIS detection sensor (S2) to detect contact with the CIS (Contact Image Sensor) head, two detection and CIS end sensor (S3) to detect whether two checks and CIS is completed, A print sensor (S4) that detects the passing position of the check, stops the operation of the check insertion roller, and waits for a print command after checking the check authenticity, and a sensor (S5) confirming that the check has arrived at the deposit check storage unit 14. , Withdrawal CIS sensor (S6) to detect when the check is withdrawn, SIS to detect the completion of the CIS and printing of the check (S7), reject detection sensor (S8) to check whether the withdrawn check is rejected ), Make sure that the check you're withdrawing is withdrawn correctly. The withdrawal number detection sensor (S9), two withdrawal detection sensor for detecting whether the withdrawal check is two sheets (S10), the operation confirmation sensor (S11) to check whether the withdrawal separation motor is operating normally, the customer withdrawal check Receiving confirmation sensor (S12) and the like is installed to check whether the received, these sensors are made of a transmissive or reflective sensor as described above.

In addition, as shown in Figure 2, the photosensors (S1 ~ S12) is operated by driving the LED driver 23, the control signal output from the control unit 22 for controlling the operation of the check teller machine.

As such, many sensors are used in cash dispensers, including check and teller machines, to detect whether banknotes are withdrawn and withdrawn. Unnecessarily long sensor operation time reduces power consumption and lifespan by sensors. There was this.

The present invention is invented to improve the above problems, the light emitting device of the photosensor by controlling the on / off time of the photosensor is mounted to detect the bills conveyed along the transfer path when the banknotes are entered and withdrawn Photoelectric sensor control for banknotes detecting banknotes in financial teller machines that reduces the lighting time of the light emitting elements by reading the light-receiving elements within a short time when is turned on, and has the same effect as detecting bills with the light emitting elements always on. It is an object of the invention to provide a method.

The present invention for realizing the above object, after receiving the operation command of the banknotes teller machine from the main controller, the light emitting device is turned on to detect the execution process of the banknotes deposit and withdrawal operation through the light receiving element, the operation for the command In the method of controlling the photosensor for detecting banknotes of the automatic teller machine comprising the step of turning off the light emitting element and transmitting the result of the command to the main controller when the execution is completed,

In the step of sensing the performance of the banknotes deposit and withdrawal operation, the light emitting device is characterized in that the light is turned on in the period of reading the light-receiving element and is controlled to be off in the period of not reading the light receiving element.

In the above, the lighting time of the light emitting device is characterized in that 0.13㎳.

In the above, the period is characterized by being set by a timer.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3A is a flowchart illustrating a method of controlling a photo sensor for detecting banknotes in a financial automatic machine according to the present invention. In particular, FIG. 3B is a flowchart illustrating an interrupt routine of a timer for controlling a light emitting diode of FIG. 3A.

Referring to the flow of operations in the check and teller machine, the controller 22 of the check and teller machine is specified from the main controller 21 in a waiting state for waiting for a command from the host station, i.e., the main controller 21, which controls the operation of the entire ATM. Receive a command to perform an action.

Then, the control unit 22 of the check and teller machine controls the operation of the received command and completes the result, and transmits the result to the main controller 21, and waits for the command to be received from the main controller 21 again. Will be.

When performing an operation on the received command, the operation of depositing or withdrawing a check is performed. At this time, the sensors as described above are arranged in the transfer path to detect the check transfer state. These sensors are photosensors with a light emitting element and a light receiving element. To detect the presence of a check in the light receiving element, the light receiving element reacts according to the amount of light reaching the light receiving element after turning on the light emitting diode used as the light emitting element. This is made possible by reading

In the light emitting diode control method according to the present invention, when power is supplied to the check and teller machine for the first time, the light emitting diode is turned off, the light emitting diode On flag is clear and the timer is started by setting a predetermined period. To get the initial state. In this case, the timer is provided in the controller 22 itself or may be connected to the outside. The cycle may be periodically turned on to detect a light emitting diode, a sensing period of a light receiving element, and the like to check a result of a received command. The time set to control the operation.

As shown in FIG. 3, the control unit 22 of the check teller machine receives a command for checking and depositing a check from the main controller 21 (step S101), and before performing an operation on the command, the LED on control. Set the light emitting diode On flag for (S102).

Subsequently, the operation of the command is completed (step S103), and when the operation is completed, the detection signal of the light receiving device does not need to be read, so the LED on flag is cleared (step S104), and the result of the command is performed. Transmit to the host station (step S105).

If the flag is set in the step S102 of the above process by a timer that periodically performs an interrupt routine, the value of the LED on flag is determined in the first timer period (period 1) (step S202) and the flag is set. Then, the light emitting diode is turned on (step S203) and the timer interrupt routine is terminated.

In the next second timer period (cycle 2) (step S204), the value of the light receiving element is simply read (step S205) and the light emitting diode is turned off (step S206).

When the execution in the other timer cycle (step S207) is completed, the timer is repeatedly performed from cycle 1 again.

When the operation is completed in step S103 and the flag is cleared in step S104, the timer determines the value of the light emitting diode On flag in period 1, so the flag is not set (S202), so that the light emitting diode is turned on. Quit without. Therefore, after completion of the command, the light emitting diode remains Off.

4 shows an operating time chart of a photosensor according to the present invention and the prior art.

In a check and teller machine, a photo sensor judges the presence or absence of bills in various sections when a check or a bill moves through a deposit or withdrawal section. In this case, the light received by the light emitting element of the photosensor is received by the light receiving element. It will be judged according to. Therefore, when the photosensor is operating, the light must be turned on by applying power to the light emitting device.

4A is a time chart illustrating a conventional photosensor control method. As shown in FIG. 4A, a light emitting device (LED) of the photosensor is always turned on for a predetermined time, but the light receiving device has a predetermined timing (for example, a T1 cycle). ) Determines whether the light emitting device is turned on.

FIG. 4B is a time chart illustrating a method of controlling a photosensor according to the present invention. As shown in FIG. 4B, the light receiving device determines whether the light emitting device is turned on at a predetermined timing (for example, a T1 cycle). The light emitting device is turned on by giving a slight error range (T3 period) in a certain period of the lead period in which the light receiving device operates.

In comparison with the illustrated time chart, the light emitting device is turned on by the time of T2 in FIG. 4A, and the light emitting device is turned on five times during the time of T2 in FIG. The light emitting device is turned on for only 5 hours.

In the illustrated embodiment, one cycle of the square wave for controlling the photosensor is set to 20 ms, and the ON section is set to 0.13 ms. One cycle of the square wave takes into account the sensing period of the light receiving element and can be changed according to the sensing period of the light receiving element, and the lighting period is set to 0.13㎳ in consideration of the tolerance range during the sensing operation of the light receiving element. Changes can be made without departing from the spirit.

As described above, the present invention uses a large number of photosensors in order to detect the presence or absence of bills in and out of the check teller machine of the automatic teller machine. By considering the period and time, the light is turned on within the allowable range that can be detected by the light-receiving element, which reduces the lighting time of the light-emitting element of the photo sensor as a whole, thereby reducing unnecessary power consumption and extending the life of the photo sensor. It has an effect.

Claims (3)

Receiving the operation command of the banknote teller machine from the main controller, the light emitting device is turned on to detect the execution process of the banknote teller machine with the light receiving device, and when the operation of the command is completed, the light emitting device is turned off and the command In the control method of the photosensor for detecting banknotes of the automatic teller machine comprising the step of transmitting the execution result to the main controller The photoelectric sensor for detecting banknotes of the automatic teller machine, characterized in that the light emitting device is turned on during the reading period of the light receiving element and off during the period of not reading the light receiving element in the step of sensing the performance of the bill receipt and withdrawal operation. Control method. The method of claim 1, wherein the lighting time of the light emitting device is 0.13 ㎳. The method according to claim 1 or 2, wherein the period is set by a timer.

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