CN108257291B - Speed regulating method and system for temporary paper money storage device based on FPGA (field programmable Gate array) and financial equipment - Google Patents
Speed regulating method and system for temporary paper money storage device based on FPGA (field programmable Gate array) and financial equipment Download PDFInfo
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- CN108257291B CN108257291B CN201810062364.0A CN201810062364A CN108257291B CN 108257291 B CN108257291 B CN 108257291B CN 201810062364 A CN201810062364 A CN 201810062364A CN 108257291 B CN108257291 B CN 108257291B
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
- G07D11/10—Mechanical details
- G07D11/16—Handling of valuable papers
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
- G07D11/20—Controlling or monitoring the operation of devices; Data handling
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Abstract
A speed regulation method of a temporary paper money storage device based on FPGA comprises the following steps: starting the equipment, reading the preset parameters of the temporary paper money storage device and the storage parameters when the last operation is finished; calculating the initial rotating speed of a driving motor for driving the temporary storage winding drum when the temporary storage paper money device is started at this time according to the preset parameters and the storage parameters; if the paper money needs to be stored or the paper money needs to be separated, the rotating speed of the driving motor is adjusted in real time according to the change of the number of the temporarily stored paper money in the process of storing the paper money or separating the paper money so as to enable the linear speed of the temporarily stored winding drum to be constant. The accurate control of the line aligning speed is realized by using the number of the temporary stored paper money, and the temporary storage capacity is increased; the FPGA on the existing structure is adopted for realizing, the processing burden of a CPU is reduced, and the response speed of the system is improved, so that the performance of the system is improved, and extra design and hardware cost are not needed.
Description
Technical Field
The invention belongs to the technical Field of financial equipment, and particularly relates to a speed regulation method and system of a paper money temporary storage device based on a Field Programmable Gate Array (FPGA), and financial equipment.
Background
At present, when the receipts paper money that the reel formula was kept in, along with receiving paper money number more and more, the reel diameter of keeping in is also more and more big, if driving motor keeps fixed rotational speed, makes the linear velocity of reel tangent plane bigger and bigger, not only influences the deposit paper money capacity of keeping in, also seriously influences paper currency transmission path's stability, very easily causes card paper money, tears paper money scheduling problem, keeps in admittedly and receives paper money, divides the rotational speed that paper money in-process needs dynamic adjustment driving motor.
Traditional dynamic speed regulation of keeping in, some realize through the software, realize the speed regulation of keeping in through looking up the table, calculate in advance and keep in the corresponding relation of income paper currency number and motor rotational speed promptly, obtain a motor tachometer to deposit the motor tachometer in relevant storage medium, when keeping in and receiving and dividing the paper money, through calculating and keeping in and receiving, divide the corresponding motor rotational speed in the paper money number, realize the dynamic speed regulation of motor. However, the software implementation occupies the resources of a Central Processing Unit (CPU), thereby affecting the system performance; the software implementation is limited by performance, the speed is adjusted once after a plurality of banknotes are collected, and the speed transition is not smooth; the mode of collecting and looking up the table is realized, if different access and cash passing speeds are required to be compatible, a plurality of tables need to be stored, manual calculation is required, the operation is not convenient, and storage resources are occupied.
The traditional temporary storage dynamic speed regulation is realized by adding a code disc, and measuring the linear speed of the paper money transmission through a hard disk, so that the closed-loop control of the linear speed can be realized, the linear speed control is more accurate, but an additional structural design is required, and the hardware cost is increased.
Disclosure of Invention
The invention aims to provide a speed regulating method and system of a temporary paper money storage device based on an FPGA (field programmable gate array) and financial equipment, and aims to solve the problems of storage resource occupation and high cost in the traditional temporary storage dynamic speed regulation.
A speed regulation method of a temporary paper money storage device based on FPGA comprises the following steps:
starting the equipment, reading preset parameters of a temporary storage paper currency device and storage parameters at the end of the last operation, wherein the storage parameters comprise the number n of temporary storage paper currencies on a temporary storage winding drum;
calculating the initial rotating speed N0 of a driving motor for driving the temporary storage winding drum when the temporary storage banknote device is started at this time according to the preset parameters and the storage parameters;
and if the paper money needs to be stored or separated, controlling the driving motor to rotate at the initial rotating speed, and adjusting the rotating speed of the driving motor in real time according to the change of the number n of the temporarily stored paper money in the process of storing or separating the paper money so as to ensure that the linear speed of the temporarily stored winding drum is constant.
In addition, still provide a paper currency device speed control system of keeping in based on FPGA, include: sensor, register, state control unit, formula computational unit and drive unit, wherein:
the state control unit is used for reading preset parameters of the temporary storage paper money device when the equipment is started and storage parameters stored in the register when the last operation is finished, and the storage parameters comprise the number n of the temporary storage paper money on the temporary storage winding drum;
the formula calculation unit calculates the initial rotating speed N0 of a driving motor for driving the temporary storage winding drum when the temporary storage banknote device is started at the time according to the preset parameters and the storage parameters;
if the sensor detects that paper money needs to be stored or separated, the state control unit controls the driving unit to drive the driving motor to rotate at the initial rotating speed, and the formula calculation unit adjusts the rotating speed of the driving motor in real time according to the change of the number n of the temporarily stored paper money in the process of storing the paper money or separating the paper money so as to enable the linear speed of the temporarily stored winding drum to be constant.
In addition, the financial equipment comprises an FPGA and a computer program which is stored in the FPGA and can run, and the FPGA executes the computer program to realize the step of the speed regulating method of the temporary storage paper currency device based on the FPGA.
In addition, another financial device is provided, which comprises an FPGA and the speed regulating system of the temporary paper money storage device based on the FPGA.
The speed regulating method and the system of the device for temporarily storing the paper money based on the FPGA utilize the number of the temporarily stored paper money, realize accurate control on the line speed and increase the temporarily stored storage capacity; the linear speed is kept consistent in the banknote receiving and sorting process, the consistency of the spacing of the banknotes is ensured, and the banknote transmission control by the channel is facilitated; the FPGA on the existing structure is adopted for realizing, the processing burden of a CPU is reduced, and the response speed of the system is improved, so that the performance of the system is improved, and extra design and hardware cost are not needed.
Drawings
Fig. 1 is a specific flowchart of a speed regulating method for a temporary paper money storing device based on an FPGA according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural diagram of a speed regulating system of a banknote temporary storage device based on an FPGA according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, in a preferred embodiment of the present invention, a method for adjusting speed of a temporary paper money storage device based on an FPGA includes the following steps:
and step S110, starting the equipment, reading preset parameters of the temporary storage paper currency device and storage parameters when the last operation is finished, wherein the storage parameters comprise the number n of the temporary storage paper currencies on the temporary storage winding drum.
Specifically, in the daily use process of the financial device, a certain number of paper money can be temporarily stored on the temporary storage reel 10, and the system can record the number n of the temporary storage paper money remaining after the paper money is received and separated every time. The preset parameters include the initial diameter D0 of the temporary storage reel, the diameter D of each paper money to change the diameter of the temporary storage reel, the linear speed V of the temporary storage reel, and the transmission ratio I between the driving motor 20 and the temporary storage reel 10, and the preset parameters and the storage parameters can be stored in the register 120 of the FPGA.
Further, the information stored in the register 120 can be accessed by an upper Computer (CPU), and is used for sending banknote collection, banknote sorting start commands, configuring the linear velocity V of the temporary storage drum 10, querying related states, and the like, so as to meet different banknote passing speed requirements.
And step S120, calculating the initial rotating speed N0 of the driving motor for driving the temporary storage winding drum when the temporary storage banknote device is started at the time according to the preset parameters and the storage parameters.
Specifically, in the present embodiment, in order to ensure the stability of the banknote transmission channel and avoid the problems of banknote jam and banknote tearing, the linear speed V of the temporary storage drum 10 is a preset constant speed, and then the formula calculating unit 140 calculates the initial rotation speed N0 of the driving motor 20 of the temporary storage banknote device according to the number N of temporary storage banknotes at the end of the previous operation and the linear speed V of the temporary storage drum 10, where the initial rotation speed N0 is the rotation speed at which the driving motor 20 is started and operated to a constant state.
Step S130, if the paper money needs to be stored or the paper money needs to be separated, the driving motor is controlled to rotate at the initial rotating speed, and the rotating speed of the driving motor is adjusted in real time according to the change of the number n of the temporarily stored paper money in the process of storing the paper money or separating the paper money so as to enable the linear speed V of the temporarily stored winding drum to be constant.
Specifically, the linear velocity V of the winding drum is actually the speed of the winding belt for winding the deposited banknotes, and if the sensor 110 detects that the banknotes need to be stored or the banknotes need to be separated, the state control unit 130 adjusts the rotation speed of the driving motor 20 according to the number of the stored or separated banknotes during the process of storing or separating the banknotes. Specifically, the formula calculating unit 140 adjusts the rotation speed of the driving motor 20 every time a banknote is received or every banknote is dispensed, and transmits the adjusted rotation speed to the state control unit 130, and the state control unit 130 controls the driving unit 150 to drive the driving motor 20 to change the rotation speed according to the adjusted rotation speed.
Further, the relationship among the rotating speed N of the driving motor, the diameter D of the temporary storage reel and the linear speed V of the temporary storage reel is as follows:
n60 × V × I/(PI × D); (formula 1)
D is continuously increased during the process of storing the bills, D is continuously decreased during the process of dispensing the bills, and if the linear velocity V needs to be kept constant, the rotation speed N of the drive motor 20 needs to be dynamically changed. It can be measured that when the temporary storage reel 10 is empty, the initial diameter is D0, and when a banknote is received, the diameter of the temporary storage reel increases to D, and when the nth banknote is received, the diameter of the temporary storage reel is D0+ n x D,
then, at the nth banknote, the rotation speed of the driving motor 20 is:
n ═ 60 × V × I/(PI × (D0+ N × D)); (formula 2)
Since I, D0 and PI are both constant values, let K be 60I/PI, it can be simplified as:
n ═ K × V/(D0+ N × D); (formula 3)
Based on the formula 3, in the process of receiving and sorting the banknotes, the target rotating speed N of the motor can be calculated in real time by counting the number of the banknotes. Wherein the linear speed V of the paper money passing is configured by an upper Computer (CPU).
Wherein, the sensor 110 is a temporary storage transfer sensor 110 for calculating the number of the received/dispensed banknotes; the formula calculating unit 140 mainly implements formula 3, calculates a target rotational speed of the motor in real time according to the configured target linear speed, and sends the target speed to the motor driving unit 150, thereby implementing real-time speed regulation of the motor.
Further, the speed regulating method of the temporary paper money storage device based on the FPGA further comprises the following steps: and after the paper money is stored or the paper money is separated, updating the number n of the temporary storage paper money according to the number of the stored paper money or the separated paper money, and calling when the equipment is started next time.
In addition, still disclose a paper currency device speed control system of keeping in based on FPGA, include: sensor 110, register 120, state control unit 130, formula calculation unit 140 and driving unit 150, wherein:
the state control unit 130 is configured to read a preset parameter of the temporary storage banknote device and a storage parameter stored in the register 120 at the end of the last operation when the apparatus is started, where the storage parameter includes the number n of temporary storage banknotes on the temporary storage drum 10;
the formula calculating unit 140 calculates the initial rotation speed of the driving motor 20 for driving the temporary storage drum 10 when the temporary storage banknote device is started at this time according to the preset parameters and the storage parameters;
if the sensor 110 detects that the banknotes need to be stored or dispensed, the state control unit 130 controls the driving unit 150 to drive the driving motor 20 to rotate at the initial rotation speed, and the formula calculation unit 140 adjusts the rotation speed of the driving motor 20 in real time according to the change of the number n of the temporary storage banknotes during the process of storing or dispensing the banknotes, so that the linear speed of the temporary storage drum 10 is constant.
Further, the register 120 is also used for: and after the paper money is stored or the paper money is separated, updating the number n of the temporary storage paper money according to the number of the stored paper money or the separated paper money.
Specifically, the initial rotation speed N0 ═ 60 × V × I/(PI · (D0+ N × D)); wherein, PI is the circumferential ratio, D0, D, V, I are the initial diameter of the temporary storage reel 10, the size of each banknote changing the diameter of the temporary storage reel, the linear speed of the temporary storage reel, and the transmission ratio of the driving motor 20 and the temporary storage reel 10 of the preset parameters.
In the process of adjusting the rotation speed of the driving motor 20 in real time, the formula calculating unit 140 adjusts the rotation speed of the driving motor 20 once for each banknote storage or each banknote output of the temporary banknote storage device.
In addition, the financial equipment comprises an FPGA and a computer program which is stored in the FPGA and can run, and the FPGA executes the computer program to realize the steps of the speed regulating method of the temporary storage paper currency device based on the FPGA.
In addition, another financial device is disclosed, which comprises an FPGA and the speed regulating system of the temporary paper money storage device based on the FPGA.
The financial equipment and the speed regulating method and the system thereof based on the FPGA for temporarily storing the paper money utilize the number of temporarily stored paper money, realize accurate control of the line speed and increase the temporarily stored storage capacity; the linear speed is kept consistent in the banknote receiving/distributing process, the consistency of the spacing of the banknotes is ensured, and the banknote transmission control by a channel is facilitated; the temporary storage handover sensor is used for counting the number of the banknotes and calculating the target rotating speed of the motor in real time, so that the realization is simple, manual calculation is not needed, and compared with a table look-up mode, the temporary storage handover sensor does not occupy storage resources; the motor speed calculation is realized by adopting a formula, the application is more flexible, and for different application scenes, only different parameters and target speeds need to be configured. The FPGA is adopted for realizing, the processing burden of a CPU is reduced, a manual calculation table is not needed, and the response speed of the system is improved without occupying storage resources, so that the performance of the system is improved; the method is realized on the existing structure, and no additional design and hardware cost are needed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A method for regulating the speed of a temporary paper money storage device based on FPGA is characterized by comprising the following steps:
starting the equipment, reading preset parameters of a temporary storage paper currency device and storage parameters at the end of the last operation, wherein the storage parameters comprise the number n of temporary storage paper currencies on a temporary storage winding drum;
calculating the initial rotating speed N0 of a driving motor for driving the temporary storage winding drum when the temporary storage banknote device is started at this time according to the preset parameters and the storage parameters;
if the paper money needs to be stored or separated, controlling the driving motor to rotate at the initial rotating speed, and adjusting the rotating speed of the driving motor in real time according to the change of the number n of the temporarily stored paper money in the process of storing or separating the paper money so as to ensure that the linear speed of the temporarily stored winding drum is constant;
the initial rotation speed N0 ═ 60 × V × I/(PI ═ D (D0+ N × D));
and PI is a circumferential ratio, and D0, D, V and I are the initial diameter of the temporary storage reel with preset parameters, the size of each paper money for changing the diameter of the temporary storage reel, the linear speed of the temporary storage reel and the transmission ratio of the driving motor to the temporary storage reel.
2. The method for regulating the speed of the temporary storage paper money device based on the FPGA according to claim 1, further comprising the following steps:
and after the paper money is stored or the paper money is separated, updating the number n of the temporary storage paper money according to the number of the stored paper money or the separated paper money.
3. The method for regulating the speed of a temporal banknote device based on FPGA according to claim 1, wherein the temporal banknote device regulates the rotational speed of the driving motor every banknote received or every banknote separated in the process of regulating the rotational speed of the driving motor in real time with a change in the number n of temporal banknotes during the process of receiving or dispensing banknotes.
4. The utility model provides a paper currency device speed control system of keeping in based on FPGA which characterized in that includes: sensor, register, state control unit, formula computational unit and drive unit, wherein:
the state control unit is used for reading preset parameters of the temporary storage paper money device when the equipment is started and storage parameters stored in the register when the last operation is finished, and the storage parameters comprise the number n of the temporary storage paper money on the temporary storage winding drum;
the formula calculation unit calculates the initial rotating speed N0 of a driving motor for driving the temporary storage winding drum when the temporary storage banknote device is started at the time according to the preset parameters and the storage parameters;
if the sensor detects that paper money needs to be stored or separated, the state control unit controls the driving unit to drive the driving motor to rotate at the initial rotating speed, and the formula calculation unit adjusts the rotating speed of the driving motor in real time according to the change of the number n of the temporary storage paper money in the process of storing the paper money or separating the paper money so as to enable the linear speed of the temporary storage winding drum to be constant;
the initial rotation speed N0 ═ 60 × V × I/(PI ═ D (D0+ N × D));
and PI is a circumferential ratio, and D0, D, V and I are the initial diameter of the temporary storage reel with preset parameters, the size of each paper money for changing the diameter of the temporary storage reel, the linear speed of the temporary storage reel and the transmission ratio of the driving motor to the temporary storage reel.
5. The FPGA-based temporal banknote device speed regulation system of claim 4, wherein the register is further configured to:
and after the paper money is stored or the paper money is separated, updating the number n of the temporary storage paper money according to the number of the stored paper money or the separated paper money.
6. The FPGA-based temporal banknote device speed adjustment system of claim 4 wherein the formula calculation unit adjusts the rotational speed of the drive motor once per banknote received or once per banknote dispensed by the temporal banknote device during real-time adjustment of the rotational speed of the drive motor.
7. Financial equipment comprising an FPGA and a computer program stored in the FPGA and operable, characterized in that the FPGA executes the computer program to realize the steps of the method for regulating the speed of the temporary banknote storage device based on the FPGA according to any one of claims 1 to 3.
8. Financial equipment comprising an FPGA, characterized by comprising the FPGA-based banknote escrow device speed regulation system of any one of claims 4 to 6.
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