Patent Application
20180082505
The present application relates generally to electronic transaction systems and, more specifically, to a coin recognition system of an electronic transaction system.
Various machines and devices are known for accepting items of currency in exchange for goods and services. Previously these devices had no control over the force of a coin and the device would need to be compromised in order to perform well for both large and small coins. Large coins would travel too quickly through the sensors with too much wobble such that the sensor readings were poor quality and small coins would often stop in the coin path, particularly if the path was wet or dirty.
An embodiment of this disclosure provides an apparatus, including a control blade configured to move by rotating or translating. The apparatus also includes a magnet coupled to the control blade. The apparatus also includes an electric coil. The magnet is positioned such that movement of the control blade causes the magnet to influence an electromagnetic field of the electric coil.
Another embodiment of this disclosure provides a method for controlling a coin mechanism. The method includes receiving an amount of an electric current from a sensor indicating a movement by rotation or translation of a control blade. The electric current is produced from an electric coil when a magnet coupled to the control blade influences an electromagnetic field of the electric coil. The method also includes controlling the movement of the control blade using an interaction between the magnet and the electric coil.
Yet another embodiment of this disclosure provides a coin recognition system. The coin recognition system includes an enclosure including a payment access mechanism, wherein the payment access mechanism comprises a coin mechanism. The coin mechanism includes a control blade configured to move by rotation or translation. The coin mechanism also includes a magnet coupled to the control blade. The coin mechanism also includes an electric coil. The magnet is positioned such that movement of the control blade causes the magnet to pass influence an electromagnetic field of the electric coil.
Other technical features may be readily apparent to one skilled in the art from the following figures, descriptions, and claims. Before undertaking the DETAILED DESCRIPTION below, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document: the terms “include” and “comprise,” as well as derivatives thereof, mean inclusion without limitation; the term “or,” is inclusive, meaning and/or; the phrases “associated with” and “associated therewith,” as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, or the like; and the term “controller” means any device, system or part thereof that controls at least one operation, such a device may be implemented in hardware, firmware or software, or some combination of at least two of the same. It should be noted that the functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. Definitions for certain words and phrases may be provided throughout this patent document, and those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior, as well as future uses of such defined words and phrases.
For a more complete understanding of the present disclosure and its advantages, reference is now made to the following description taken in conjunction with the accompanying drawings, in which like reference numerals represent like parts:
Before undertaking the DETAILED DESCRIPTION below, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document: the terms “include” and “comprise,” as well as derivatives thereof, mean inclusion without limitation; the term “or,” is inclusive, meaning and/or; the phrases “associated with” and “associated therewith,” as well as derivatives thereof, may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, or the like; and the term “controller” means any device, system or part thereof that controls at least one operation, such a device may be implemented in hardware, firmware or software, or some combination of at least two of the same. It should be noted that the functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. Definitions for certain words and phrases are provided throughout this patent document, those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior, as well as future uses of such defined words and phrases.
Electronic transaction systems, such as automatic ticket seller machine, automatic teller machine, vending machine, gaming machine and other kiosks are provided at attended and unattended places to provide ease and flexibility to a user to performing transactions in return for goods or services. Electronic transaction systems often accept coins for payment of goods or services. A coin recognition/reception system (herein after “coin recognition system”) is used by electronic transaction systems to receive coins for such payment. The coin recognition system includes a coin control system. The coin control system includes a swing blade or coin control blade that enters a coin travel path of a coin mechanism (also referred to as a coin recognition system) to reduce the amount of energy that the coin possesses before the coin reaches one or more sensors. Coins can refer to coin currency, tokens, chips, or the like.
Vending machine 100 includes a cabinet 101 and a service door 102 that, together, define an enclosure. In the embodiment illustrated, the service door 102 is pivotally mounted to the front of the cabinet 101 and extends all the way across the front face of the vending machine 100. In alternate designs, the service door may extend only part way across the front of the vending machine, or may be formed in two portions (of equal or unequal sizes) that swing open in opposite directions.
In the embodiment illustrated in
Vending machine 100 also includes a customer product selection interface 104, payment access mechanism 105 and a delivery bin door 106. Customer product selection interface 104, which could be a touch-screen liquid crystal display (LCD) display and input, is instead in the present disclosure an alternate extended keypad design compatible with expanded vend transaction processing, as described in further detail below.
Payment access mechanism 105 may include one or more of a coin slot allowing deposit of coins into a coin mechanism (or coin recognition system), a banknote access slot for feeding paper currency into a banknote validator and/or recycler, and a magnetic stripe swipe mechanism for reading the magnetic stripe on credit or debit cards.
The vending machine 100 includes a delivery bin door 106 positioned below the transparent window 103 and substantially across the width of the product columns behind the transparent window. Products available for vending are thus held in, for example, helical coils on shelves visible from the exterior through the transparent window 103 and are dropped through a space between the shelves and the transparent window 103 into the delivery bin behind delivery bin door 106. Those skilled in the art will recognize that in some vending machines, particularly beverage vending machines, an X-Y product retrieval and delivery mechanism delivers vended product to an access port to the side as shown in
In one example embodiment, the payment access mechanism 105 may be coupled to a coin return recess 107. Any resulting change from the transaction may be paid out through the coin return recess 107.
Those skilled in the art will recognize that the complete structure of a vending machine is not depicted in the drawings, and the complete details of the structure and operation of the vending machine is not described herein. Instead, for simplicity and clarity, only so much of the structure and operation of a vending machine as is unique to the present disclosure or necessary for an understanding of the present invention is depicted and described.
Referring to
The sensors 225 generate electrical signals which are provided to a coin mechanism processor 230 such as a microprocessor or microcontroller. The electrical signals generated by the sensors 225 contain information corresponding to the measured characteristics of the coin, such as a coin's diameter, thickness, metal content, and electromagnetic properties. Based on these electrical signals, the processor 230 is able to discriminate whether the coin is acceptable, and if so, the denomination of the coin 210.
If the coin 210 is unacceptable, the processor 230 controls a gate 235 to direct the unacceptable coin 210 to a reject chute 240. The reject chute 240 is connected to the coin return recess 107 of
Each of the containers 262, 264, 266 and 268 is in the form of a coin tube arranged to store a vertical stack of coins of a particular denomination. Although only four containers are shown, any number may be provided. The coin tubes may be arranged within a removable cassette 269.
A dispenser 270 associated with the coin tubes 262-268 is operable to dispense coins from the containers when change is to be given to a customer by the coin validator 201. The dispensed coins are delivered to the coin return recess 107 for collection.
Those skilled in the art will recognize that the complete structure of a coin validator 201 is not depicted in the drawings, and the complete details of the structure and operation of the coin validator 201 is not described herein. Instead, for simplicity and clarity, only so much of the structure and operation of a coin validator 201 as is unique to the present disclosure or necessary for an understanding of the present invention is depicted and described.
In
In one or more example embodiments, the coin control mechanism 300 also includes a counterbalance weight 330 and a stop arm 340. The counterbalance weight 330 is a counterbalance to hold the coin control blade 310 in the coin travel path when a coin is not engaging the coin control blade 310. For example, the counterbalance weight 330 keeps the coin control blade 310 in a normally closed position so that the coin control blade 310 rests in the coin travel path or blocks the coin travel path.
The stop arm 340 can be fixedly attached to the coin control blade 310 or to one or more other components of the coin recognition system 200 that is fixedly attached to the coin control blade 310. In one example, the stop arm 340 extends from the device pivot 320 at an angle offset from the coin control blade 310. In other examples, the stop arm 340 may not be offset.
In one example embodiment, as a coin engages with the coin control blade 310 causing the coin control blade 310 pivots around the device pivot 320, the stop arm 340 also pivots around the device pivot 320 with the coin control blade 310. The stop arm 340 pivots around the device pivot 320 with the coin control blade 310 until the stop arm 340 engages a fixed surface of the electronic transaction system. When the stop arm 340 engages the fixed surface of the coin recognition system 200 preventing the stop arm 340 from further rotation around the device pivot 320, the coin control blade 310 fixedly coupled with the stop arm 340 also stops rotating further around the device pivot 320. The stop arm 340 prevents the coin control blade 310 from pivoting too far around the device pivot 320 and prevents contact between the coin control blade 310 and another component of the coin recognition system 200. The stop arm 340 can be flexible providing at least some rebound effect when contacting a surface as discussed herein.
One or more embodiments of this disclosure provide that the speed of the arm due to the impact of the coin would be an indicator of the amount of energy that the coin possessed and by measurement of the current induced in the coil the amount of energy could be quantified and used to determine the appropriate reaction that was required to control it. The swing of the arm can be damped by controlling the current in the coil to provide a resistance on the moving magnet. The device could be used to push against the coin with sufficient force to stop any unwanted motion. Once the coin was under control the device could be lifted away from the coin to make sure that even the smallest coins would not get trapped under it. The device can be a ‘wake-up’ sensor—since the initial current is generated by the coin, the system could be in a low power mode until it saw the input current.
One or more embodiments of this disclosure recognize and take into account that when coins enter a coin mechanism, the coins have a lot of kinetic energy and various devices are used to control the energy so that the coin is under more control before it travels through the coin sensors. A coin control device can take the form of a swinging blade in the coin path. The coin control device can include a counter balance on the back of the device which is tuned to provide the correct amount of reaction to control the coin but not so much force as to stop the coin from rolling. There are a number of problems with this mechanism since coins have many different sizes and various amounts of kinetic energy and all must be controlled using one device. At one extreme large, heavy or fast coins can force their way through the device resulting in poor validation and at the other small, light or slow coins can stop in the coin path which would then require rejection from the unit.
One or more embodiments of this disclosure provide a permanent magnet fixed to a swinging blade similar to the above design and an electrical coil attached to the fixed housing surrounding the moving path of the magnet. Information can be gathered by the measuring the current induced in the coil by impact from coins and force applied by an electrical current in the coil can be used to control the reaction force applied to the coin. This will make it an ‘active’ device which could be controlled so that the response of the system can be varied to be appropriate for whichever type of coin was encountered. Thus a larger range of coins can be controlled more effectively than with an uncontrolled swinging arm and fewer coins would need to be rejected due to stalling in the unit. In one or more embodiments, the swing blade could have an electrical coil attached to the swing blade and a magnet attached to the fixed housing surrounding the moving path of the electrical coil.
In
Furthermore, it should be understood that a device pivot 420 can be substituted with or used in conjunction with other movement permitting devices. For example, the stop arm 440 can be used with a movement device that allows the stop arm 440 to move linearly such as a sliding or extending motion. The stop arm 440 can also be used with one or more movement devices that allow the stop arm 440 to move in a compound motion such as a movement with a change in direction using both linear movement devices (such as sliding or extending device) and rotational movement devices (such as the pivot device 420). Pivoting using a rotational movement device is in directions 412. In yet another embodiment, when the pivot device 420 is a linear movement device, coin control blade 410 can translate along a channel, bar, sliding device, or extending device. The translation could be any direction allowable by the channel, bar, sliding device, or other extending device.
In one or more embodiments, the stop arm 440 also includes a magnet 450. In one example, the magnet 450 is a permanent magnet. The magnet 450 is disposed on a distal end 455 of the stop arm 440 opposite from the device pivot 420. In an embodiment, the magnet 450 can be located at any position on the stop arm 440 such that the magnet 450 can be received by or communicated at least partially through the coil 460. In one example embodiment, magnet 450 may influence the magnetic field and therefore the electromagnetic field of the electric coil 460 without penetrating the electrical coil 460. In one embodiment, the magnet 450 is an electromagnet and wrapped around a solid core. In another embodiment, the magnet is a solenoid 450. In additional embodiments, the magnet 450 may be multiple magnets of different types of magnets or the same type.
The magnet 450 disposed on the stop arm 440 is configured to pass through at least a portion of a coil passage formed by a coil 460. The coil 460 can have a cylindrical shape with openings at each end forming a passage or any other shape that can for a passage and allow and of an arm to pass through. In one or more embodiments, the electric coil 460 could be an electromagnet with a solid core. In an embodiment, the magnet 450 can be swapped with the electric coil 460 such that the electric coil 460 coupled to the stop arm 440 is received by the magnet 450. In different embodiments, different configurations between the magnet 450 and electric coil 460 can exist. Such as, for example, for example an electromagnet with a steel core could work in some aspects of the functionality, two coils instead of a coil and a magnet could function to repel the device, and the like.
In one embodiment, in a resting position when the coin control blade 410 is blocking or at least partially obstructing a coin travel path, the magnet 450 is located a distance (such as a linear or radial distance) from an opening of the coil passage 465 created by the coil 460. When a coin engages the coin control blade 410 and the coin control blade 410 pivots or rotates around the device pivot 420, at least a portion of the magnet 450 passes through the opening of the coil passage 465 formed by the coil 460 generating an electric current through the coil 460. In an embodiment, the magnet 450 can already be inside the coil passage 465 of the coil 460 and can be moved further through the coil passage of the coil 460 when a coin engages the coin control blade 410. In one or more embodiments, the electric coil 460 could be an electromagnet with a solid core without a passage. When there is no passage, the magnet does not penetrate the coil, but instead influences the magnetic field around the coil by passing near the coil.
In one example embodiment, when the magnet is a solenoid, the passage 465 could be through the core of the magnet. In another embodiment, the coil 460 may include two coils connected by a straight portion of wire where the passage 465 is between the two coils. In yet another embodiment, the passage 465 may be between two separate coils.
In various embodiments, the coil 460 is electrically coupled to a sensing unit 470. The sensing unit 470 can include one or more sensors and a process, controller, and/or processing circuitry. In another embodiment, the sensing unit 470 is only a sensor, and the sensor is connected to another processor. The sensing unit 470 senses when an electric current 492 is generated through the coil 460. To save power, the coin control system 400 may have an off-mode or a power saving mode 497 and may only enter an active mode 498 at a time when the coin control system 400 is being used.
When the magnet 450 passes through an opening of the coil passage formed by the coil 460 and an electric current 492 is generated through the coil 460, the sensing unit 470 senses the electric current 492 and generates a wake-up signal 485 to command 496 the coin control system 400 or vending machine 100 in
As discussed, the sensing unit 470 senses an amount of electric current 492 generated through the coil 460. The velocity of the magnet 450 passing through the coil passage formed by the coil 460 affects the electric current through the coil 460. If a large coin engages the coin control blade 410, the weight of the large coin can cause the magnet to pass faster through the coil passage formed by the coil 460 than the weight of a smaller coin. The faster the magnet 450 passes through the coil passage 465 formed by the coil 460 the greater the electric current 492 generated through the coil 460. In some embodiments, the relative movement of the magnet 450 could influence the magnetic field in the electric coil 460 without penetrating the electric coil 460.
The sensing unit 470 determines an appropriate reaction based on the amount of electric current 492 passing through the coil 460. For example, the sensing unit 470 commands 496 an electric current source 480 to generate a counter electric current 494 through the coil 460 to dampen a speed of the magnet 450 through the coil passage 465 or to push the magnet 450 back out of the coil passage 465. The amount of electric current 494 generated through the coil by the electric current source 480 can be determined by the amount of electric current 492 generated by the magnet 450 and sensed by the sensing unit 470. In some embodiments, the sensing unit 470 commands 496 an electric current source 480 to generate a counter electric current through the electric coil 460 to dampen a speed of the magnet 450 without penetrating the electric coil 460.
In an embodiment, the sensing unit 470 can use the amount of electric current 492 to identify a type of coin. For example, the amount of electric current may identify a size and/or weight of a coin, which can be used to identify a specific coin. For example, a quarter may have a cause a greater amount of electric current than a dime.
The coil 460 is electrically coupled to the electric current source 480. The electric current source 480 generates an electric current through the coil 460 during both an active mode and power-saving mode 497, during only an active mode 498, or when receiving a command 496 from a sensing unit 470. The electric current source 480 generates an electric current 494 to counter an electric current 492 generated through the coil 460 when the magnet 450 passes through the coil passage 465 to dampen or stop further movement of the coin control blade 410. In some embodiments, the electric current source 480 generates an electric current 494 to counter an electric current 492 generated through the electric coil 460 when the magnet 450 influences the electric coil 460 without penetrating the electric coil 460. The electric current source 480 generates an electric current 494 through the coil 460 after a coin is under control of the coin control system 400 in order to lift the coin control blade 410 away from the coin to ensure that even the smallest coin does not get trapped under or within the coin control blade 410.
The sensing unit 470 and the electric current source 480 can be electrically coupled to each other to operatively control the magnet 450 passing through the coil passage. The sensing unit 470 and the electric current source 480 can also operate independently. The sensing unit 470 and the electric current source 480 include processing circuitry such as hardware which processes executable instructions such as software. In an embodiment, the coil 460 can be coupled to the distal end of or to another location on the stop arm 440 and the magnet 450 can be fixedly attached to another portion of the coin control system 400 so that coil 460 forming the coil passage moves to receive the magnet 450.
At operation 505, the coin control system 400 receives a force (for example, caused by the insertion of coin into the coin control system 400) causing a coin control blade 410 to rotate around a pivot device 420. A stop arm 440 with a magnet 450 disposed on the distal end of the stop arm 440 rotates about the pivot device 420 in response to the rotation of the coin control blade 410. A stop arm 440 with a magnet 450 disposed on the distal end of the stop arm 440 rotates about the pivot device 420 in cooperation with the rotation of the coin control blade 410. At operation 510, after the stop arm 440 rotates about the pivot device 420, the magnet 450 influences the magnetic field in a coil 460. At operation 515, an electric current is generated through the coil 460 in response to the magnet 450 passing through the coil passage formed by the coil 460.
At operation 520, a sensing unit 470 determines an amount of electric current generated through the coil 460 by the passage of the magnet 450 through the coil passage. The sensing unit 470 can transmit a wake-up signal to the coin control system 400 in response to sensing any amount of electric current through the coil 460. The wake-up signal transitions the coin control system 400, vending machine 100, and the like, from the off-mode or power saving mode 497 into the active mode 498.
At operation 525, the sensing unit 470 transmits a wake-up signal to activate the coin control system 400 in response to sensing an electric current through the coil 460 that is above an electric current threshold. This can, for example, prevent objects (such as fingers, which may not fit as far through a coin slot as a coin) from activating the coin control system 400. A finger, for example, may not be able to cause the magnet 450 to pass through the coil 460 with enough velocity to generate an electric current that is above a threshold. The coin control system 400 could remain in an off-mode or a power saving mode even though electric current (such as below the electric current threshold), even if a small amount, is generated through the coil 460.
At operation 530, the sensing unit 470 determines an amount of electric current generated through the coil 460 by the magnet 450 to control the electric current source 480 to control a position of the magnet 450 relative to the coil 460. For example, the sensing unit 470 can determine the amount of electric current generated through the coil 460 by the magnet 450 and control the electric current source 480 to generate a counter electric current through the coil to dampen the movement of the magnet 450 through the coil 460 or stop the movement of the magnet 450 through the coil 460.
The sensing unit 470 can control the electric current source 480 to generate an electric current through the coil 460 when the magnet 450 begins to move out of the coil passage formed by the coil 460. This electric current holds the magnet 450 in a temporary static position with the coil passage. The coin control blade 410 could then remain in an open position for a predetermined period of time after the insertion of coin to ensure that even the smallest coin does not get trapped under or with the coin control blade 410.
In one embodiment, an electronic transaction system includes a control blade configured to rotate about a pivot. The electronic transaction system also includes an arm coupled to the control blade at the pivot. The arm is configured to rotate about the pivot. The electronic transaction system also includes a permanent magnet disposed at a distal end of the arm opposite the pivot. The electronic transaction system also includes an electrically conducting coil forming a coil passage. The coil passage is configured to receive the permanent magnet. The electronic transaction system also includes a sensing unit comprising processing circuitry configured to sense an electric current through the coil and generate a signal in response to sensing the electric current through the coil.
Although
Several embodiments of the disclosure may include logic contained within a medium. In the embodiment of
The logic may also be embedded within any other suitable medium without departing from the scope of the disclosure.
It will be understood that well known processes have not been described in detail and have been omitted for brevity. Although specific steps, structures and materials may have been described, the present disclosure may not be limited to these specifics, and others may be substituted as it is well understood by those skilled in the art, and various steps may not necessarily be performed in the sequences shown.
While this disclosure has described certain embodiments and generally associated methods, alterations and permutations of these embodiments and methods will be apparent to those skilled in the art. Accordingly, the above description of example embodiments does not define or constrain this disclosure. Other changes, substitutions, and alterations are also possible without departing from the spirit and scope of this disclosure, as defined by the following claims.
None of the description in the present application should be read as implying that any particular element, step, or function is an essential element which must be included in the claim scope: the scope of patented subject matter is defined only by the allowed claims. Moreover, none of these claims are intended to invoke paragraph six of 35 USC § 112 unless the exact words “means for” are followed by a participle.
The present application claims priority under 35 U.S.C. § 365 to International Patent Application No. PCT/US2016/025762 filed Apr. 1, 2016, entitled “ACTIVE COIN CONTROL DEVICE”. International Patent Application No. PCT/US2016/025762 claims priority under 35 U.S.C. § 365 and/or 35 U.S.C. § 119(e) to U.S. Provisional Patent Application No. 62/141,631 filed Apr. 1, 2015, each of which is incorporated herein by reference into the present disclosure as if fully set forth herein.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/US2016/025762 | 4/1/2016 | WO | 00 |
| Number | Date | Country | |
|---|---|---|---|
| 62141631 | Apr 2015 | US |
