US20130134011A1 - Currency Cassette Capacity Monitoring And Reporting - Google Patents
Currency Cassette Capacity Monitoring And Reporting Download PDFInfo
- Publication number
- US20130134011A1 US20130134011A1 US13/481,460 US201213481460A US2013134011A1 US 20130134011 A1 US20130134011 A1 US 20130134011A1 US 201213481460 A US201213481460 A US 201213481460A US 2013134011 A1 US2013134011 A1 US 2013134011A1
- Authority
- US
- United States
- Prior art keywords
- document
- cassette
- acceptor
- capacity
- storage cassette
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F9/00—Details other than those peculiar to special kinds or types of apparatus
- G07F9/02—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus
- G07F9/026—Devices for alarm or indication, e.g. when empty; Advertising arrangements in coin-freed apparatus for alarm, monitoring and auditing in vending machines or means for indication, e.g. when empty
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
- B65H29/46—Members reciprocated in rectilinear path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
- B65H43/06—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable detecting, or responding to, completion of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/60—Other elements in face contact with handled material
- B65H2404/64—Other elements in face contact with handled material reciprocating perpendicularly to face of material, e.g. pushing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/30—Numbers, e.g. of windings or rotations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2551/00—Means for control to be used by operator; User interfaces
- B65H2551/20—Display means; Information output means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1912—Banknotes, bills and cheques or the like
Definitions
- Document acceptor assemblies such as those used in the vending and gaming industries, typically store accepted banknotes or other documents in a cassette.
- a stacking mechanism may be incorporated in the assembly to facilitate storage of the documents in the cassette.
- the cassettes (sometimes referred to as cash boxes) are removed in predefined cycles.
- removal of the cassette is referred to as a “drop.”
- Removing the cassettes in predefined cycles can be wasteful because many of the cassettes may not be at, or near, capacity at the time of the drop.
- Another problem may arise as a result of cassettes becoming full in advance of the drop, thus rendering the gaming machine disabled until its scheduled drop.
- the disclosure relates to monitoring and reporting the capacity of a currency cassette.
- An indicator (e.g., an alarm or warning) is generated to indicate that a currency storage cassette attached to a document handling device (e.g., a currency validator or other currency acceptor) has reached a particular capacity or is approaching its full capacity.
- a document handling device e.g., a currency validator or other currency acceptor
- the indicator can include, for example, a visual or audio signal in the vicinity of the document acceptor so as to alert service personnel that the cassette is near full-capacity or that it is expected to reach full-capacity within the near future.
- Visual or audio indicators that readily can be sensed by service personnel can make it easier to identify when a full (or near-full) cassette needs to be exchanged for an empty one.
- the indicator of the cassette capacity can be controlled, for example, by the document acceptor's processor instead of the host gaming or vending machine. That can help avoid the need to make expensive changes to software in the host machine.
- the physical indicator is provided when the cassette is filled to a predefined capacity (i.e., when the cassette contains at least a specified number of documents).
- the time at which the indicator occurs is based on a prediction as to when the cassette is expected to become filled to capacity. The predicted time can be based, for example, on the feed rate of documents inserted into the cassette and the actual number of documents stored in the cassette.
- an indicator or other message is provided if it is determined, based on the current feed rate and capacity, that the cassette is expected to become full within the next fifteen minutes.
- FIG. 1 illustrates an example of document acceptor that incorporates a document stacker according to the invention.
- FIG. 2 is an isometric partial section view of a document stacker.
- FIG. 3 is an end view of the document stacker of FIG. 2 with a piston in the home position.
- FIGS. 4-7 are end views of the document stacker of FIG. 2 illustrating various stages of the document stacking cycle.
- FIG. 8 is a graph showing examples of motor current curves.
- FIG. 9 is an enlarged version of a portion of the graph of FIG. 8 .
- FIG. 10 is a block diagram illustrating a controller for the stacker.
- FIG. 1 illustrates an example of an implementation of a document acceptor assembly 10 that includes a document handling device such as a banknote validator 12 (or other document acceptor) connected to a piston-type currency stacker 14 .
- a document handling device such as a banknote validator 12 (or other document acceptor) connected to a piston-type currency stacker 14 .
- the acceptor 12 determines whether inserted currency or other documents are acceptable.
- currency documents includes, but is not limited to, banknotes, bills, security documents, paper currency checks, coupons, tickets and the like that may be used as legal tender in exchange for goods or service, and that may be inserted into a document handling device for validation and storage in return for goods or services.
- Banknotes may be inserted one at a time into the acceptor 12 at entrance 16 .
- the banknote 38 is transported through the acceptor 12 to the acceptor's banknote output by pairs of pulleys or rollers and belts that grip the side edges of the banknote and that may be driven by a motor and drive train according to known techniques.
- the banknote As the banknote is transported through the acceptor 12 , the banknote may be tested by a group of sensors to ascertain its validity and denomination. Output signals from the sensors may be processed by logic circuits in the acceptor 12 to determine whether the banknote is acceptable. Any of various known techniques using optical, magnetic, inductive or other types of sensors may be used to test the banknote. A banknote which is unacceptable may be ejected back out through the entrance 16 .
- An acceptable banknote is transported into an interconnection region 18 in which the acceptor 12 and stacker 14 are connected together.
- the interconnection region 18 establishes a smooth uninterrupted path for a banknote to follow when leaving the 15 acceptor 12 and entering the stacker 14 .
- the accepted banknote is transported from the stacker's entrance into a pre-storage channel 20 .
- the channel 20 “frames” the banknote at its side edges and holds it stiff prior to stacking.
- the piston-type stacker 14 described in greater detail below, pushes the accepted banknote into a cassette 22 where it is stored until removed by service personnel.
- the cassette is designed to be readily removed or opened by service personnel so that stacked banknotes can be removed.
- the stacker 14 includes two apertures 24 , 26 that permit a piston 28 to freely pass.
- the aperture 24 should be sufficiently small that stacked banknotes or other documents 30 cannot pass through the aperture without some bending.
- the piston 28 may be in direct contact with a cam 32 that is coupled to an electric motor 36 or other actuator.
- a permanent magnet direct current (DC) motor may be used.
- a conical spring 34 provides a clamping force that ensures that the banknote 38 to be stacked does not slide across the document stack 30 . The spring 34 also keeps the documents in the stack 30 closely packed and stable.
- An optical switch 40 is provided for detecting the presence of a flag 42 that indicates when the piston 28 is in the home position (i.e., when the piston is not obstructing the pre-storage document channel 20 ).
- the flag 42 may be formed, for example, as a protrusion from the backside of the piston 28 .
- a sensor is provided to sense electrical signals from the motor during a document stacking operation.
- a motor current sensor 200 is coupled to the motor 36 and allows the motor current to be measured.
- the sensor 200 may include, for example, a series resistor coupled between the motor 36 and an analog-to-digital converter (ADC) 202 .
- ADC analog-to-digital converter
- Output signals from the ADC 202 are provided to a control system 204 .
- the control system 204 may include a microprocessor 206 to control when the motor 36 is turned on or off in response to signals from the optical sensor 40 and the motor current sensor 200 .
- the microprocessor 206 also can measure the passage of time using, for example, an interrupt software routine driven by a clock signal.
- FIGS. 3 through 7 illustrate the sequence of operation for stacking a document according to one implementation.
- the cassette 22 is empty or nearly empty.
- FIG. 3 illustrates the stacker mechanism in the home position, corresponding to FIG. 2 . In that position, the piston 28 is fully retracted, and the flag 42 blocks the optical switch 40 .
- a document 38 is in the pre-storage channel 20 ready to be stacked in the cassette 22 .
- a DC motor (such as motor 36 ) with a substantially fixed input voltage draws a current that is approximately proportional to the mechanical load placed upon it. For example, during the transition from the home position to the initial stacking stage of FIG. 3 , the piston 28 encounters little mechanical resistance.
- An example of the profile of motor current is illustrated in FIGS. 8 and 9 .
- the profile 50 indicates a brief inrush current 52 followed by a low trough 54 that reflects the light mechanical load.
- FIG. 5 illustrates the stacker 14 after the document 38 has been stripped from the pre-storage document channel 20 .
- the piston 28 encounters some resistance as a result of sliding friction, the document's resistance to bending and an increase in the force of the spring 34 .
- the motor current increases to a peak 56 and then decreases briefly.
- the piston 28 reverses direction and travels in the opposite direction as illustrated by FIG. 7 .
- the force of the spring 34 helps push the piston 28 back toward its home position ( FIGS. 2 and 3 ). Therefore, during the return stroke, the motor current is at a relatively low value as indicated by 60 in FIG. 9 .
- the expected values of motor current may vary significantly from the values indicated by curve 50 .
- An example of the motor current profile when the cassette 22 is substantially full is indicated by curve 62 ( FIGS. 8 and 9 ).
- the motor current during the home position and the initial stacking stage, corresponding to FIGS. 3 and 4 is similar to the motor current values of curve 50 .
- the motor current values diverge.
- the peak motor current value 64 which corresponds to the peak value 56 in curve 50 , occurs at a higher value and at a later time.
- the later timing of the peak value 64 when the cassette 2 is full may be attributed to the fact that the stacker mechanism 14 slows down under the higher load.
- the full extension state of the piston 28 is not attained when the cassette 22 is full (or almost full) to capacity. Instead, the motor current rises to a value 66 , where it more or less remains for a period of time as a result of the motor 36 stalling.
- the controller reverses the motor 36 so the stacker can return to its home position. In the example of FIG. 8 , that occurs after about 500 clock cycles, identified by the reference numeral 68 .
- the controller 204 then may report that the cassette is full and may place the banknote acceptor in an “out-of-service” mode until a replacement cassette is installed.
- Curve 70 illustrate an example of the motor current profile when such an abnormal event occurs.
- one or more values indicative of the motor's actual operation may be compared to one or more reference values to determine whether the motor and, therefore, the stacker, is operating properly.
- Reference values and expected current profiles may be stored, for example, in memory 208 associated with the control system 204 (see FIG. 10 ).
- the rate at which documents are being inserted into the cassette is determined.
- the cassette's actual capacity is determined as well. That information then is used to predict an approximate time when the cassette will reach its full capacity. If it determined that the cassette will reach its full capacity within some predetermined amount of time, then an indicator is provided to alert service personnel to the status of the cassette.
- the currency acceptor's processor can be used to track the status of the cassette, make any required calculations, and generate appropriate signals to provide the indicator.
- a stack cycle begins with the piston in the “home” position ( FIG. 2 ).
- the stacking motor is energized, the cams rotate, and the document is pressed into the cassette.
- the document is fully committed to the cassette ( FIG. 5 ).
- the motor continues to run until the cams rotate 360 degrees, and the piston returns to its starting “home” position ( FIG. 2 ) to complete the cycle.
- the capacity of the cassette is determined based on the motor current. As the cassette nears its full capacity, the force required to stack a document increases and the current in the motor increases. Thus, the increase in force can be detected by measuring the current draw of the stacker motor. The increase is predictable, and thresholds can be determined dynamically or can be predefined. The thresholds indicate the capacity status. For example, with reference to FIG. 8 , curve 62 corresponds to a cassette at high capacity (i.e., at full or near-full capacity). Once the characteristics for the particular stacker-type are know, a liner calculation can be applied to provide finer resolution.
- the physical indicator is provided if the number of documents in the cassette has reached a pre-defined threshold.
- the rate at which the documents are being stacked during a specified period can be monitored and used together with the actual number of documents currently stored in the cassette to predict the amount of time until the cassette will become full or substantially full.
- Such an approach can provide an adjustable amount of warning time and compensate for different play (i.e., document insertion) rates.
- a currency acceptor associated with a busy gaming machine will issue its alarm sooner than the currency acceptor associated with a more slowly played machine.
- the warning can also be issued in degrees as the cassette's maximum capacity is approached (i.e., 10%, 20%, etc.).
- a particular implementation uses the following comparison to determine whether the cassette is at, or will be at, substantially full capacity in the near future:
- MAX maximum capacity (i.e., number of documents) of the cassette
- CR current document feed rate (e.g., documents per hour)
- the value for “CR” may be recalculated on a periodic basis, for example, every thirty minutes.
- the value for “WT” may be set dynamically by the host or through a pre-configuration setting.
- the cassette is either already at full capacity or likely to reach its full capacity soon, and an indicator is provided.
- the indicator is controlled directly by the currency acceptor and can be sensed by service personnel.
- the indicator can be a visual warning such as a light emitting diode (LED) or other light source, located on the top of the gaming machine, being turned on.
- LED light emitting diode
- Such an LED or other physical indicator can be located elsewhere such as on the bezel of the currency acceptor.
- turning on the LED serves as the indicator.
- the blinking rate of the LED indicates the anticipated time until the cassette reached full capacity.
- a faster blink rate would indicate that the cassette is expected to become full sooner than if the blink rate were slow.
- Audio warnings e.g., a beeping or other sound
- a message may be sent to a remote location (i.e., remote from the currency acceptor and host machine) to alert service personnel.
- the currency acceptor can be configured to clear the indicator (e.g., turn off the LED) automatically once the cassette is changed.
- Circuitry including dedicated or general purpose machines, such as computer systems and processors, may be adapted to execute machine-readable instructions to implement the techniques described above.
- Computer-executable instructions for implementing the techniques can be stored, for example, as encoded information on a computer-readable medium such as a magnetic floppy disk, magnetic tape, or compact disc read only memory (CD-ROM).
- the computer-readable medium includes non-volatile electronic memory such a PROM, EPROM or FLASH.
- Algorithms also may be implemented, for example, through use of a programmable gate array.
- the techniques may be employed in connection with stackers other than piston-type stackers, including, for example, stackers in which banknotes are wrapped around a drum or in which banknotes are rolled onto a stack.
- the techniques also may used with stackers using actuators other than DC motors, including, for example, actuators for stepper motors, AC motors and brushless motors.
- signals other than current, including, for example, the phase lag may be used to measure the actuator load.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pile Receivers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
- This application is a continuation application of U.S. Ser. No. 11/751,444 filed May 21, 2007 which claims the benefit of priority from U.S. Provisional Patent Application No. 60/802,375, filed on May 22, 2006.
- Document acceptor assemblies, such as those used in the vending and gaming industries, typically store accepted banknotes or other documents in a cassette. A stacking mechanism may be incorporated in the assembly to facilitate storage of the documents in the cassette.
- In various industries, the cassettes (sometimes referred to as cash boxes) are removed in predefined cycles. In the gaining industry, removal of the cassette is referred to as a “drop.” Removing the cassettes in predefined cycles can be wasteful because many of the cassettes may not be at, or near, capacity at the time of the drop. Another problem may arise as a result of cassettes becoming full in advance of the drop, thus rendering the gaming machine disabled until its scheduled drop.
- The disclosure relates to monitoring and reporting the capacity of a currency cassette.
- An indicator (e.g., an alarm or warning) is generated to indicate that a currency storage cassette attached to a document handling device (e.g., a currency validator or other currency acceptor) has reached a particular capacity or is approaching its full capacity.
- The indicator can include, for example, a visual or audio signal in the vicinity of the document acceptor so as to alert service personnel that the cassette is near full-capacity or that it is expected to reach full-capacity within the near future. Visual or audio indicators that readily can be sensed by service personnel can make it easier to identify when a full (or near-full) cassette needs to be exchanged for an empty one. The indicator of the cassette capacity can be controlled, for example, by the document acceptor's processor instead of the host gaming or vending machine. That can help avoid the need to make expensive changes to software in the host machine.
- In some implementations, the physical indicator is provided when the cassette is filled to a predefined capacity (i.e., when the cassette contains at least a specified number of documents). In some implementations, the time at which the indicator occurs is based on a prediction as to when the cassette is expected to become filled to capacity. The predicted time can be based, for example, on the feed rate of documents inserted into the cassette and the actual number of documents stored in the cassette. Thus, in a particular scenario, an indicator or other message is provided if it is determined, based on the current feed rate and capacity, that the cassette is expected to become full within the next fifteen minutes.
- Other features may be readily apparent from the following detailed description, the accompanying drawings and the claims.
-
FIG. 1 illustrates an example of document acceptor that incorporates a document stacker according to the invention. -
FIG. 2 is an isometric partial section view of a document stacker. -
FIG. 3 is an end view of the document stacker ofFIG. 2 with a piston in the home position. -
FIGS. 4-7 are end views of the document stacker ofFIG. 2 illustrating various stages of the document stacking cycle. -
FIG. 8 is a graph showing examples of motor current curves. -
FIG. 9 is an enlarged version of a portion of the graph ofFIG. 8 . -
FIG. 10 is a block diagram illustrating a controller for the stacker. -
FIG. 1 illustrates an example of an implementation of adocument acceptor assembly 10 that includes a document handling device such as a banknote validator 12 (or other document acceptor) connected to a piston-type currency stacker 14. - The
acceptor 12 determines whether inserted currency or other documents are acceptable. As used herein, the phrase “currency documents” includes, but is not limited to, banknotes, bills, security documents, paper currency checks, coupons, tickets and the like that may be used as legal tender in exchange for goods or service, and that may be inserted into a document handling device for validation and storage in return for goods or services. - Banknotes may be inserted one at a time into the
acceptor 12 atentrance 16. From theentrance 16, thebanknote 38 is transported through theacceptor 12 to the acceptor's banknote output by pairs of pulleys or rollers and belts that grip the side edges of the banknote and that may be driven by a motor and drive train according to known techniques. - As the banknote is transported through the
acceptor 12, the banknote may be tested by a group of sensors to ascertain its validity and denomination. Output signals from the sensors may be processed by logic circuits in theacceptor 12 to determine whether the banknote is acceptable. Any of various known techniques using optical, magnetic, inductive or other types of sensors may be used to test the banknote. A banknote which is unacceptable may be ejected back out through theentrance 16. - An acceptable banknote is transported into an
interconnection region 18 in which theacceptor 12 andstacker 14 are connected together. Theinterconnection region 18 establishes a smooth uninterrupted path for a banknote to follow when leaving the 15acceptor 12 and entering thestacker 14. The accepted banknote is transported from the stacker's entrance into apre-storage channel 20. In a fashion somewhat analogous to the way that a picture frame holds a picture, thechannel 20 “frames” the banknote at its side edges and holds it stiff prior to stacking. The piston-type stacker 14, described in greater detail below, pushes the accepted banknote into acassette 22 where it is stored until removed by service personnel. The cassette is designed to be readily removed or opened by service personnel so that stacked banknotes can be removed. - As shown in
FIGS. 2 and 3 , thestacker 14 includes twoapertures piston 28 to freely pass. Theaperture 24 should be sufficiently small that stacked banknotes orother documents 30 cannot pass through the aperture without some bending. Thepiston 28 may be in direct contact with acam 32 that is coupled to anelectric motor 36 or other actuator. For example, a permanent magnet direct current (DC) motor may be used. Aconical spring 34 provides a clamping force that ensures that thebanknote 38 to be stacked does not slide across thedocument stack 30. Thespring 34 also keeps the documents in thestack 30 closely packed and stable. - An
optical switch 40 is provided for detecting the presence of aflag 42 that indicates when thepiston 28 is in the home position (i.e., when the piston is not obstructing the pre-storage document channel 20). Theflag 42 may be formed, for example, as a protrusion from the backside of thepiston 28. - A sensor is provided to sense electrical signals from the motor during a document stacking operation. In a particular implementation, as shown in
FIG. 10 , a motorcurrent sensor 200 is coupled to themotor 36 and allows the motor current to be measured. Thesensor 200 may include, for example, a series resistor coupled between themotor 36 and an analog-to-digital converter (ADC) 202. Output signals from theADC 202 are provided to acontrol system 204. - The
control system 204 may include amicroprocessor 206 to control when themotor 36 is turned on or off in response to signals from theoptical sensor 40 and themotor current sensor 200. As discussed below, themicroprocessor 206 also can measure the passage of time using, for example, an interrupt software routine driven by a clock signal. -
FIGS. 3 through 7 illustrate the sequence of operation for stacking a document according to one implementation. For the purposes of illustration, it may be assumed that thecassette 22 is empty or nearly empty.FIG. 3 illustrates the stacker mechanism in the home position, corresponding toFIG. 2 . In that position, thepiston 28 is fully retracted, and theflag 42 blocks theoptical switch 40. Adocument 38 is in thepre-storage channel 20 ready to be stacked in thecassette 22. - During the initial stage of the stacking state, power is applied to the
motor 36, and an eccentric begins to rotate, thereby lifting thepiston 28. As illustrated inFIG. 4 , after a small amount of rotation has occurred, thepiston 28 is in contact with thedocument 38, thereby causing the document to deform slightly. In this state, theflag 42 has cleared theoptical switch 40. - A DC motor (such as motor 36) with a substantially fixed input voltage draws a current that is approximately proportional to the mechanical load placed upon it. For example, during the transition from the home position to the initial stacking stage of
FIG. 3 , thepiston 28 encounters little mechanical resistance. An example of the profile of motor current is illustrated inFIGS. 8 and 9 . Theprofile 50 indicates a brief inrush current 52 followed by alow trough 54 that reflects the light mechanical load. -
FIG. 5 illustrates thestacker 14 after thedocument 38 has been stripped from thepre-storage document channel 20. During this stage, thepiston 28 encounters some resistance as a result of sliding friction, the document's resistance to bending and an increase in the force of thespring 34. As shown inFIGS. 8 and 9 , the motor current increases to apeak 56 and then decreases briefly. - When the
piston 28 is fully extended as shown inFIG. 6 , thespring 34 exerts its maximum force, and the motor current reaches its maximum value as indicated by 58 inFIG. 9 . Thedocument 38 has completely passed from thepre-storage channel 20 and is located within thecassette 22. - Next, the
piston 28 reverses direction and travels in the opposite direction as illustrated byFIG. 7 . During the return stroke, the force of thespring 34 helps push thepiston 28 back toward its home position (FIGS. 2 and 3 ). Therefore, during the return stroke, the motor current is at a relatively low value as indicated by 60 inFIG. 9 . - Under different circumstances, such as when the
cassette 22 is substantially full, the expected values of motor current may vary significantly from the values indicated bycurve 50. An example of the motor current profile when thecassette 22 is substantially full is indicated by curve 62 (FIGS. 8 and 9 ). In that case, the motor current during the home position and the initial stacking stage, corresponding toFIGS. 3 and 4 , is similar to the motor current values ofcurve 50. In the subsequent stacking stages, however, the motor current values diverge. For example, the peak motorcurrent value 64, which corresponds to thepeak value 56 incurve 50, occurs at a higher value and at a later time. - The later timing of the
peak value 64 when the cassette 2 is full may be attributed to the fact that thestacker mechanism 14 slows down under the higher load. In the illustrated implementation, the full extension state of thepiston 28, as shown inFIG. 6 , is not attained when thecassette 22 is full (or almost full) to capacity. Instead, the motor current rises to avalue 66, where it more or less remains for a period of time as a result of themotor 36 stalling. After an algorithm in the host controller 204 (FIG. 10 ) indicates that a maximum time has elapsed, the controller reverses themotor 36 so the stacker can return to its home position. In the example ofFIG. 8 , that occurs after about 500 clock cycles, identified by thereference numeral 68. Thecontroller 204 then may report that the cassette is full and may place the banknote acceptor in an “out-of-service” mode until a replacement cassette is installed. - In some situations, the
pre-storage document channel 20 may become obstructed by an object other than a genuine, acceptable document. Curve 70 (FIGS. 8 and 9 ) illustrate an example of the motor current profile when such an abnormal event occurs. - In various implementations, one or more values indicative of the motor's actual operation may be compared to one or more reference values to determine whether the motor and, therefore, the stacker, is operating properly. Reference values and expected current profiles may be stored, for example, in
memory 208 associated with the control system 204 (seeFIG. 10 ). - To predict the time at which the cassette is expected to reach its full capacity, the rate at which documents are being inserted into the cassette is determined. The cassette's actual capacity is determined as well. That information then is used to predict an approximate time when the cassette will reach its full capacity. If it determined that the cassette will reach its full capacity within some predetermined amount of time, then an indicator is provided to alert service personnel to the status of the cassette. The currency acceptor's processor can be used to track the status of the cassette, make any required calculations, and generate appropriate signals to provide the indicator.
- Various techniques can be used to track the number of documents stored in the 20 cassette. For example, the processor associated with the currency acceptor can keep track of the number of stack cycles that occur. The completion of each cycle would indicate that another document has been stored in the cassette. As described above, a stack cycle begins with the piston in the “home” position (
FIG. 2 ). During the cycle, the stacking motor is energized, the cams rotate, and the document is pressed into the cassette. Eventually, the document is fully committed to the cassette (FIG. 5 ). The motor continues to run until the cams rotate 360 degrees, and the piston returns to its starting “home” position (FIG. 2 ) to complete the cycle. - In some implementations, the capacity of the cassette is determined based on the motor current. As the cassette nears its full capacity, the force required to stack a document increases and the current in the motor increases. Thus, the increase in force can be detected by measuring the current draw of the stacker motor. The increase is predictable, and thresholds can be determined dynamically or can be predefined. The thresholds indicate the capacity status. For example, with reference to
FIG. 8 ,curve 62 corresponds to a cassette at high capacity (i.e., at full or near-full capacity). Once the characteristics for the particular stacker-type are know, a liner calculation can be applied to provide finer resolution. - According to some implementations, once the number of documents stored in the cassette has been determined, the physical indicator is provided if the number of documents in the cassette has reached a pre-defined threshold.
- Such techniques, however, do not account for the rate at which the documents are being received and stacked in the cassette. Thus, for example, if documents are being stacked at a relatively slow rate (e.g., if customers are not using the gaming machine very often), the cassette might not become full for a relatively long time. On the other hand, if the current document feed-rate is relatively high, the cassette may reach its full capacity sooner.
- To obtain a better sense of when the cassette is likely to reach full-capacity, the rate at which the documents are being stacked during a specified period (e.g., the previous half-hour) can be monitored and used together with the actual number of documents currently stored in the cassette to predict the amount of time until the cassette will become full or substantially full. Such an approach can provide an adjustable amount of warning time and compensate for different play (i.e., document insertion) rates. Thus, a currency acceptor associated with a busy gaming machine will issue its alarm sooner than the currency acceptor associated with a more slowly played machine. The warning can also be issued in degrees as the cassette's maximum capacity is approached (i.e., 10%, 20%, etc.).
- A particular implementation uses the following comparison to determine whether the cassette is at, or will be at, substantially full capacity in the near future:
-
Is ((CC+(CR*WT))>MAX)? - where,
- MAX=maximum capacity (i.e., number of documents) of the cassette
- CC=current document count in the cassette
- CR=current document feed rate (e.g., documents per hour)
- WT=warning time (in hours) 20
- The value for “CR” may be recalculated on a periodic basis, for example, every thirty minutes. The value for “WT” may be set dynamically by the host or through a pre-configuration setting.
- If the value (CC+(CR*WT)) is greater than the value MAX, then the cassette is either already at full capacity or likely to reach its full capacity soon, and an indicator is provided. Preferably, the indicator is controlled directly by the currency acceptor and can be sensed by service personnel. For example, the indicator can be a visual warning such as a light emitting diode (LED) or other light source, located on the top of the gaming machine, being turned on. Such an LED or other physical indicator can be located elsewhere such as on the bezel of the currency acceptor. In some implementations, turning on the LED serves as the indicator. In other implementations, the blinking rate of the LED indicates the anticipated time until the cassette reached full capacity. For example, in particular scenario, a faster blink rate would indicate that the cassette is expected to become full sooner than if the blink rate were slow. Audio warnings (e.g., a beeping or other sound) also can be used in addition to, or instead of, visual warnings. Alternatively, or in addition to the physical indicator, a message may be sent to a remote location (i.e., remote from the currency acceptor and host machine) to alert service personnel.
- The currency acceptor can be configured to clear the indicator (e.g., turn off the LED) automatically once the cassette is changed.
- Various aspects of the system may be implemented in hardware, software or a combination of hardware and software. Circuitry, including dedicated or general purpose machines, such as computer systems and processors, may be adapted to execute machine-readable instructions to implement the techniques described above. Computer-executable instructions for implementing the techniques can be stored, for example, as encoded information on a computer-readable medium such as a magnetic floppy disk, magnetic tape, or compact disc read only memory (CD-ROM). In one particular implementation, the computer-readable medium includes non-volatile electronic memory such a PROM, EPROM or FLASH. Algorithms also may be implemented, for example, through use of a programmable gate array.
- The foregoing implementations, including the motor current profiles, are intended as examples only and are not intended to limit the scope of the invention.
- The techniques may be employed in connection with stackers other than piston-type stackers, including, for example, stackers in which banknotes are wrapped around a drum or in which banknotes are rolled onto a stack. The techniques also may used with stackers using actuators other than DC motors, including, for example, actuators for stepper motors, AC motors and brushless motors. In some cases, signals other than current, including, for example, the phase lag may be used to measure the actuator load.
- Other implementations are within the scope of the claims.
Claims (43)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/481,460 US20130134011A1 (en) | 2006-05-22 | 2012-05-25 | Currency Cassette Capacity Monitoring And Reporting |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80237506P | 2006-05-22 | 2006-05-22 | |
US11/751,444 US8186672B2 (en) | 2006-05-22 | 2007-05-21 | Currency cassette capacity monitoring and reporting |
US13/481,460 US20130134011A1 (en) | 2006-05-22 | 2012-05-25 | Currency Cassette Capacity Monitoring And Reporting |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/751,444 Continuation US8186672B2 (en) | 2006-05-22 | 2007-05-21 | Currency cassette capacity monitoring and reporting |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130134011A1 true US20130134011A1 (en) | 2013-05-30 |
Family
ID=39028386
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/751,444 Active 2027-06-11 US8186672B2 (en) | 2006-05-22 | 2007-05-21 | Currency cassette capacity monitoring and reporting |
US13/481,460 Abandoned US20130134011A1 (en) | 2006-05-22 | 2012-05-25 | Currency Cassette Capacity Monitoring And Reporting |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/751,444 Active 2027-06-11 US8186672B2 (en) | 2006-05-22 | 2007-05-21 | Currency cassette capacity monitoring and reporting |
Country Status (1)
Country | Link |
---|---|
US (2) | US8186672B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017145727A1 (en) * | 2016-02-24 | 2017-08-31 | セイコーエプソン株式会社 | Sheet recovering device, sheet recovering system, and sheet recovering method |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5388817A (en) * | 1993-10-06 | 1995-02-14 | Gameax Corporation | Note stacker mechanism |
US5639081A (en) * | 1993-11-05 | 1997-06-17 | Kabushiki Kaisha Nippon Conlux | Bill processor |
US5676366A (en) * | 1993-02-16 | 1997-10-14 | Mars Incorporated | Device for stacking sheets |
US20020063034A1 (en) * | 2000-09-21 | 2002-05-30 | Dobbins Bob M. | Methods and apparatus for an electronic drop safe |
US6572318B2 (en) * | 2001-04-30 | 2003-06-03 | Hewlett-Packard Development Co., Lp | Managing bookbinding consumables |
US20030137096A1 (en) * | 2001-04-06 | 2003-07-24 | Yukio Ito | Sheet container |
US6950053B1 (en) * | 2003-03-06 | 2005-09-27 | Daniel John Peterson | Motorcycle mounted radar/laser detector |
US6948607B2 (en) * | 2001-01-31 | 2005-09-27 | Nippon Conlux Co., Ltd. | Sheet handling apparatus and method for opening/closing sheet transport path in the handling apparatus |
US20060071413A1 (en) * | 2004-09-22 | 2006-04-06 | Sharp Kabushiki Kaisha | Sheet stacking device and image forming apparatus including the same |
US20070001390A1 (en) * | 2005-06-17 | 2007-01-04 | Aruze Corp. | Bill handling device |
US20070007355A1 (en) * | 2004-03-15 | 2007-01-11 | Fujitsu Limited | Method for detecting height of paper bundle and paper handling device |
US20070065166A1 (en) * | 2005-09-21 | 2007-03-22 | Sharp Kabushiki Kaisha | Image forming apparatus and waste toner warning method |
US20070085263A1 (en) * | 2005-10-17 | 2007-04-19 | Akihiro Machida | Image-based edge detection of stacked sheet media |
US7245871B2 (en) * | 2004-03-31 | 2007-07-17 | Konica Minolta Business Technologies, Inc. | Image forming system having switching section for stackers and image forming method thereof |
US20070182090A1 (en) * | 2005-07-27 | 2007-08-09 | Andre Gerlier | Banknote handling |
US20080126257A1 (en) * | 2005-10-26 | 2008-05-29 | Ballard Curtis C | Capacity ordering from storage apparatus |
US20090166269A1 (en) * | 2005-12-01 | 2009-07-02 | Glory Ltd. | Received Banknote Processing Apparatus |
US8439356B2 (en) * | 2005-08-19 | 2013-05-14 | Crane Canada Co. | Drive mechanism for stacker linkage |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2321654A1 (en) | 1973-04-28 | 1974-11-14 | Nat Rejectors Gmbh | TRANSPORT DEVICE FOR BANKNOTES |
JPS6077287A (en) | 1983-10-03 | 1985-05-01 | 株式会社日本コンラックス | Paper money unit |
US4765607A (en) | 1985-03-08 | 1988-08-23 | Mars, Incorporated | Stacker apparatus |
US5209335A (en) | 1991-11-08 | 1993-05-11 | Mars Incorporated | Security arrangement for use with a lockable, removable cassette |
US5357314A (en) * | 1992-01-29 | 1994-10-18 | Fuji Photo Film Co., Ltd. | Film accumulator and film accumulator/holder |
KR0164259B1 (en) | 1994-03-10 | 1999-03-20 | 오까다 마사하루 | Paper money processor |
GB9426341D0 (en) | 1994-12-29 | 1995-03-01 | At & T Global Inf Solution | A transaction terminal |
US5709525A (en) | 1995-08-02 | 1998-01-20 | Pitney Bowes Inc. | Envelope stacker |
DE19541278C2 (en) | 1995-11-06 | 1999-02-18 | Meto International Gmbh | Stacking device for card-shaped goods |
CA2164241C (en) | 1995-12-01 | 2003-02-18 | Richard J. Hellinga | Power closure panel control apparatus |
JP3336210B2 (en) | 1996-02-29 | 2002-10-21 | ローレルバンクマシン株式会社 | Banknote handling machine |
US5756985A (en) | 1996-04-04 | 1998-05-26 | Coin Acceptors, Inc. | Cash box system for bill validator |
JPH11116098A (en) | 1997-10-15 | 1999-04-27 | Omron Corp | Detecting device for transporting abnormality |
US6038491A (en) | 1997-11-26 | 2000-03-14 | Mars, Incorporated | Monitoring and reporting system using cellular carriers |
TW374890B (en) | 1998-01-07 | 1999-11-21 | Mars Inc | Flexible media stacking and accumulating device |
US6398000B1 (en) | 2000-02-11 | 2002-06-04 | Cummins-Allison Corp. | Currency handling system having multiple output receptacles |
JP2002032820A (en) | 2000-07-17 | 2002-01-31 | Nippon Conlux Co Ltd | Bill processing apparatus |
US6495981B2 (en) | 2001-02-12 | 2002-12-17 | Johnson Controls Technology Company | Motorized actuator with a variable stall level |
GB0104067D0 (en) | 2001-02-19 | 2001-04-04 | Rue De Int Ltd | A sheet detection system |
NO20020585L (en) * | 2002-02-05 | 2003-08-06 | Zopa As | System and method for transferring products from a storage area to a delivery area |
US20050183926A1 (en) | 2004-02-23 | 2005-08-25 | Deaville David C. | Document stacker with fault detection |
US7229071B2 (en) * | 2004-12-20 | 2007-06-12 | Ncr Corporation | Document stacker apparatus and method of stacking documents |
ES2345445T3 (en) * | 2005-12-19 | 2010-09-23 | Mei, Inc. | DISTRIBUTION UNIT FOR VALUE DOCUMENTS. |
US7881820B2 (en) * | 2006-08-30 | 2011-02-01 | Amazon Technologies, Inc. | Method and system for inventory placement according to expected item picking rates |
-
2007
- 2007-05-21 US US11/751,444 patent/US8186672B2/en active Active
-
2012
- 2012-05-25 US US13/481,460 patent/US20130134011A1/en not_active Abandoned
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5676366A (en) * | 1993-02-16 | 1997-10-14 | Mars Incorporated | Device for stacking sheets |
US5388817A (en) * | 1993-10-06 | 1995-02-14 | Gameax Corporation | Note stacker mechanism |
US5639081A (en) * | 1993-11-05 | 1997-06-17 | Kabushiki Kaisha Nippon Conlux | Bill processor |
US20020063034A1 (en) * | 2000-09-21 | 2002-05-30 | Dobbins Bob M. | Methods and apparatus for an electronic drop safe |
US6948607B2 (en) * | 2001-01-31 | 2005-09-27 | Nippon Conlux Co., Ltd. | Sheet handling apparatus and method for opening/closing sheet transport path in the handling apparatus |
US20030137096A1 (en) * | 2001-04-06 | 2003-07-24 | Yukio Ito | Sheet container |
US6572318B2 (en) * | 2001-04-30 | 2003-06-03 | Hewlett-Packard Development Co., Lp | Managing bookbinding consumables |
US6950053B1 (en) * | 2003-03-06 | 2005-09-27 | Daniel John Peterson | Motorcycle mounted radar/laser detector |
US20070007355A1 (en) * | 2004-03-15 | 2007-01-11 | Fujitsu Limited | Method for detecting height of paper bundle and paper handling device |
US7245871B2 (en) * | 2004-03-31 | 2007-07-17 | Konica Minolta Business Technologies, Inc. | Image forming system having switching section for stackers and image forming method thereof |
US20060071413A1 (en) * | 2004-09-22 | 2006-04-06 | Sharp Kabushiki Kaisha | Sheet stacking device and image forming apparatus including the same |
US20070001390A1 (en) * | 2005-06-17 | 2007-01-04 | Aruze Corp. | Bill handling device |
US20070182090A1 (en) * | 2005-07-27 | 2007-08-09 | Andre Gerlier | Banknote handling |
US8439356B2 (en) * | 2005-08-19 | 2013-05-14 | Crane Canada Co. | Drive mechanism for stacker linkage |
US20070065166A1 (en) * | 2005-09-21 | 2007-03-22 | Sharp Kabushiki Kaisha | Image forming apparatus and waste toner warning method |
US20070085263A1 (en) * | 2005-10-17 | 2007-04-19 | Akihiro Machida | Image-based edge detection of stacked sheet media |
US20080126257A1 (en) * | 2005-10-26 | 2008-05-29 | Ballard Curtis C | Capacity ordering from storage apparatus |
US20090166269A1 (en) * | 2005-12-01 | 2009-07-02 | Glory Ltd. | Received Banknote Processing Apparatus |
Also Published As
Publication number | Publication date |
---|---|
US8186672B2 (en) | 2012-05-29 |
US20080029953A1 (en) | 2008-02-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7946576B2 (en) | Document stacker with fault detection | |
JP4353970B2 (en) | Foreign object detection device | |
JP2002190051A (en) | Bill handling device | |
US9938105B2 (en) | Medium processing device | |
US10049525B2 (en) | Cash machine cassette management | |
CN107025724B (en) | Coin processing device | |
US8186672B2 (en) | Currency cassette capacity monitoring and reporting | |
US10013837B2 (en) | Medium processing device and medium transaction device | |
US11208284B2 (en) | Paper sheet handling device, automatic transaction device, and paper sheet handling method | |
JP2011008641A (en) | Coin hopper | |
JP5303587B2 (en) | Coin dispensing device | |
JPH11288478A (en) | Method and device for processing paper money | |
JP5277443B2 (en) | Banknote handling equipment | |
JPH10258951A (en) | Sheet detector | |
JP2761177B2 (en) | Money accumulation status judgment device | |
JP5037053B2 (en) | Coin dispenser | |
CN110689683A (en) | Method and system for controlling cash discharge of recycling bin | |
KR101241106B1 (en) | Apparatus for Controlling the Stepping-Motor in ATM and Method for the Same | |
JP5568384B2 (en) | Coin wrapping machine | |
JP2006040099A (en) | Coin identification device | |
JP3062670B2 (en) | Coin processing equipment | |
JP4888804B2 (en) | Value medium dispensing device | |
JP4716461B2 (en) | Game media payout device | |
JP4441986B2 (en) | Slot machine security equipment | |
JP2527572Y2 (en) | Game media rental machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT, NEW Y Free format text: SECURITY AGREEMENT;ASSIGNOR:MEI, INC.;REEL/FRAME:031095/0513 Effective date: 20130822 |
|
AS | Assignment |
Owner name: MEI, INC., PENNSYLVANIA Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL RECORDED AT REEL/FRAME 031095/0513;ASSIGNOR:GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT;REEL/FRAME:031796/0123 Effective date: 20131211 |
|
AS | Assignment |
Owner name: CRANE PAYMENT INNOVATIONS, INC., PENNSYLVANIA Free format text: CHANGE OF NAME;ASSIGNOR:MEI, INC.;REEL/FRAME:036981/0237 Effective date: 20150122 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |