CN110491014B - Automatic banknote estimating method - Google Patents
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- CN110491014B CN110491014B CN201910790544.5A CN201910790544A CN110491014B CN 110491014 B CN110491014 B CN 110491014B CN 201910790544 A CN201910790544 A CN 201910790544A CN 110491014 B CN110491014 B CN 110491014B
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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
- G07D11/50—Sorting or counting valuable papers
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Abstract
The invention provides an automatic banknote evaluating box and an automatic banknote evaluating method, wherein the automatic banknote evaluating box comprises banknote boxes for stacking banknotes and banknote evaluating mechanisms for detecting the number of the banknotes in the banknote boxes, the banknote evaluation mechanism is arranged on the side face of the banknote box and comprises an image transmission assembly and an image sensor, wherein the image sensor is used for acquiring images of the side face of the stacked banknotes, and the image transmission assembly is in transmission connection with the image sensor. According to the automatic banknote evaluation box and the automatic banknote evaluation method, the image transmission assembly can drive the image sensor to move, so that side images of stacked banknotes are obtained, the number of stacked banknotes is calculated according to the side images of the banknotes, manual counting is not needed, manual labor is greatly reduced, and labor cost is reduced.
Description
Technical Field
The invention belongs to the technical field of paper money mechanisms, and particularly relates to an automatic paper money estimating method.
Background
In places where paper money flows, such as a bank counter and a self-service cash recycling machine, the paper money box is required to be used for placing the paper money, so that the safety of the paper money is ensured, and the paper money is convenient to transport. At present, the counting and counting of paper money in a paper money box still depend on manual work, the time consumed by manual counting is long, the labor cost is high, and the risk of guarding and theft exists by adopting manual counting.
Disclosure of Invention
The invention aims to provide an automatic banknote estimating method, which aims to solve the technical problems of long time and high labor cost of manual banknote counting in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides an automatic estimate paper money case, including being used for the range upon range of paper currency case of placing paper currency and being used for detecting the paper currency quantity in the paper currency case estimate paper money mechanism locates the side of paper currency case, estimate paper money mechanism includes image transmission subassembly and is used for obtaining the image sensor of the side image of range upon range of placing paper currency, image transmission subassembly with image sensor transmission is connected.
Further, the moving direction of the image sensor is parallel to the stacking direction of the paper money, the image sensor is in a strip shape, and the length direction of the image sensor is parallel to the plane where the paper money is positioned; or alternatively
The motion direction of the image sensor is parallel to the plane where the paper currency is located, the image sensor is in a strip shape, and the length direction of the image sensor is parallel to the stacking direction of the paper currency.
Further, in-place sensors are provided at both extreme positions of the stroke of the image sensor.
Further, the side of the banknote box facing the image sensor is transparent; or alternatively
One side of the paper money box facing the image sensor is provided with a scanning window for the image sensor to scan.
Further, the image transmission assembly comprises a driving motor and a linear output piece in transmission connection with the driving motor, and the image sensor is fixed on the linear output piece.
Further, the linear output piece is a screw rod or a conveyor belt.
The invention also provides an automatic banknote evaluating method which is applied to the automatic banknote evaluating box and comprises the following steps:
acquiring a side image of the stacked banknote by an image sensor;
and calculating the number of stacked paper money.
Further, the step of calculating the number of stacked banknotes includes the steps of: the thickness T 1 of the stacked banknote is obtained from the side image of the stacked banknote, and the thickness of the single banknote is T 0, and the number of stacked banknotes s=t 1/T0.
Further, the step of calculating the number of stacked banknotes includes the steps of: and obtaining the number S 0 of black lines formed between adjacent paper currencies according to the side images of the stacked paper currencies, and obtaining the number S=S 0 +1 of the stacked paper currencies.
Further, after the step of calculating the number of stacked banknotes, the steps of: obtaining side images of each banknote according to the side images of the stacked banknotes, and judging whether the banknote is a true banknote according to the side color of each banknote; if the side face of the same banknote is consistent in color, the banknote is a counterfeit banknote; if the side colors of the same banknote are different, the banknote is a true banknote.
The automatic banknote evaluating box and the automatic banknote evaluating method provided by the invention have the beneficial effects that: compared with the prior art, the automatic banknote-evaluating box comprises the banknote box and the banknote-evaluating mechanism, the banknote layers are stacked in the banknote box, the banknote-evaluating mechanism comprises the image transmission assembly and the image sensor, and the image transmission assembly can drive the image sensor to move, so that side images of stacked banknotes are obtained, the number of stacked banknotes is calculated according to the side images of the banknotes, manual counting is not needed, manual labor is greatly reduced, and the labor cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an automatic banknote assessment box according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a banknote estimation mechanism according to an embodiment of the present invention;
Fig. 3 is a schematic flow chart of an automatic banknote estimation method according to an embodiment of the present invention.
Wherein, each reference sign in the figure:
010-banknote; 1-a banknote box; 2-a banknote estimating mechanism; 21-an image transmission assembly; 211-a drive motor; 212-a linear output; 22-an image sensor; 23-a control module; 3-banknote moving mechanism; 31-a tray drive assembly; 32-tray.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 and 2, an automatic banknote estimation box according to an embodiment of the present invention will now be described. In one embodiment, the automatic banknote stack comprises a banknote stack 1 and a banknote stack 2, wherein the banknote stack 1 is used for placing stacked banknotes 010, and the banknote stack 2 is used for detecting the quantity of the banknotes 010 in the banknote stack 1. More specifically, the banknote evaluation mechanism 2 is provided on the side surface of the banknote cassette 1, and determines and calculates the number of banknotes 010 by acquiring images of the side surface when the banknotes 010 are stacked. The banknote evaluation mechanism 2 comprises an image transmission assembly 21 and an image sensor 22, wherein the image transmission assembly 21 is in transmission connection with the image sensor 22, so that the image sensor 22 can move, the image sensor 22 can acquire the whole image of the side face of the banknote 010 when the banknote 010 is arranged in a stacked mode, and the number of the banknotes 010 can be judged and calculated according to the image.
The automatic banknote evaluating box in the embodiment comprises the banknote box 1 and the banknote evaluating mechanism 2, wherein the banknote is stacked in the banknote box 1, the banknote evaluating mechanism 2 comprises the image transmission assembly 21 and the image sensor 22, and the image transmission assembly 21 can drive the image sensor 22 to move, so that side images of stacked banknotes 010 are obtained, the stacked number of the banknotes 010 is calculated according to the side images of the banknotes 010, manual counting is not needed, manual labor is greatly reduced, and the labor cost is reduced.
In one embodiment, after the image sensor 22 acquires the image of the side face of the banknote 010, the image acquired by the image sensor 22 in the area where the banknote 010 is not stacked is black due to dark space light of the banknote 010, the area where the banknote 010 is stacked corresponds to the color of the banknote 010, the stacked thickness of the banknote 010 can be obtained after the black areas at the two ends of the side face image are removed, and the thickness of the single banknote 010 is fixed, so that the number of the banknote 010 can be calculated according to the stacked thickness of the banknote 010. Illustratively, the thickness T 1 of the stacked banknote 010, and the thickness T 0 of the single banknote 010, the number s=t 1/T0 of stacked banknotes 010. For example, when the thickness T 0 of a single banknote 010 is 0.1mm and the thickness T 1 of a stacked banknote 010 is 1m, the number of banknotes 010 is 1000.
In another embodiment, since the paper currency 010 is stacked, a small gap exists between the paper currency 010 and the paper currency 010, after the image sensor 22 scans the image of the side face of the paper currency 010, the thinner black lines on the image are the small gap between the paper currency 010 and the paper currency 010, and the number of the paper currency 010 can be obtained according to the number of the black lines. Illustratively, the number S 0 of black lines, and the number S of stacked banknotes 010 is S 0 +1.
Further, the banknote evaluation mechanism 2 further includes a control module 23, where the control module 23 is electrically connected to the image sensor 22, and is configured to receive the image acquired by the image sensor 22, calculate the number of banknotes 010 according to the acquired image by using the method in the foregoing embodiment, and the control module 23 may be set independently or may be integrated in the image sensor 22. When integrated in the image sensor 22, the control module 23 is part of the image sensor 22.
Alternatively, the banknotes 010 are vertically stacked, or the banknotes 010 are horizontally stacked.
In one embodiment, the image sensor 22 is strip-shaped, the length direction of the image sensor 22 is parallel to the plane where the paper currency 010 is located, the paper currency 010 is paper-shaped, the plane where the paper currency 010 is located is the plane occupied when the paper currency 010 is flat, thus, the image sensor 22 can acquire the complete side surface of the single paper currency 010 even if the image sensor 22 is not moving, the image sensor 22 does not need to move on the plane where the paper currency 010 is located, and only needs to move on the plane perpendicular to the plane where the paper currency 010 is located, namely, the image sensor 22 moves in the stacking direction of the paper currency 010. The moving direction of the image sensor 22 is parallel to the stacking direction of the bills 010, so that the image sensor 22 scans the side surface of the bills 010 in the stacking direction of the bills 010. For example, when the bills 010 are vertically stacked, the direction of the image sensor 22 is the vertical direction; when the bills 010 are horizontally stacked, the direction of the image sensor 22 is the horizontal direction. In this embodiment, the field of view length of the image sensor 22 is equal to or longer than or slightly shorter than the length of the bill 010.
In another embodiment, the image sensor 22 itself is elongated, and the length direction of the image sensor 22 is parallel to the stacking direction of the bill 010, and the image sensor 22 can acquire a complete image of the stacked bill 010 in the stacking direction even when it is not moving, but the image sensor 22 cannot acquire a complete image in the length direction of the bill 010, and it is necessary to move the image sensor 22 on the plane in which the bill 010 is located. Thus, in this embodiment, the direction of movement of the image sensor 22 is parallel to the plane in which the banknote 010 lies to acquire a complete side image of a single banknote 010. In this embodiment, the field length of view of the image sensor 22 is equal to or longer than the height at which the banknotes 010 are stacked.
In one embodiment, the image sensor 22 is provided with in-place sensors at both extreme positions of travel. The motion of the image sensor 22 is linear and has a travel limit, and the two in-place sensors are respectively provided at two extreme positions of the travel of the image sensor 22. Thus, it is possible to determine whether the image sensor 22 is located at the limit position by the two in-place sensors, and to determine which limit position the image sensor 22 is located at. Before acquiring the side image of the banknote, it is first determined whether the image sensor 22 is at the limit position, if so, the image sensor 22 is driven to move to the other limit position to scan the image, and if the image sensor 22 is not at the limit position, the image sensor 22 is moved to the limit position by the image transmission assembly 21, and then the side image of the banknote 010 is scanned to acquire the side image of the stacked banknote 010.
Referring to fig. 1 and 2, in one embodiment, the side of the banknote cassette 1 facing the image sensor 22 is transparent, so that the image sensor 22 can scan the banknote 010 inside the banknote cassette 1 through the banknote cassette 1. Alternatively, the transparent portion of the banknote case 1 may be a glass plate, an acryl plate, or the like, and transparent materials are suitable for the banknote case 1 in this embodiment. Specifically, the banknote cassette 1 may be transparent as a whole, or a transparent panel may be provided only on the side facing the image sensor 22. In this embodiment, the banknote cassette 1 and the banknote evaluating mechanism 2 are separately provided, so that the stacking space of the banknotes 010 and the space of the banknote evaluating mechanism 2 are relatively independent, and the operation of the image sensor 22 is not hindered, and the stacking of the banknotes 010 is not affected.
In another embodiment, the side of the banknote cassette 1 facing the image sensor 22 is provided with a scanning window for scanning by the image sensor 22, so that the image sensor 22 can scan directly through the scanning window to obtain a side image of the stacked banknote 010. The banknote cassette 1 in this embodiment has a simple structure, and can save the production cost of the banknote cassette 1.
Referring to fig. 2, in one embodiment, the image transmission assembly 21 includes a driving motor 211 and a linear output member 212, and the linear output member 212 is driven by the driving motor 211 to output linear motion to move the image sensor 22 in the stacking direction of the bill 010 or in the length direction of the bill 010. The image sensor 22 is fixed on the linear output member 212, and is driven by the linear output member 212 to move. The driving motor 211 is a stepping motor, and the image sensor 22 is controlled in a step counting manner, so that the running speed of the stepping motor is stable, the movement of the image sensor 22 is also stable, and the quality of the image obtained by the image sensor 22 is higher. The driving motor 211 may be a dc motor, and the dc motor cooperates with a device capable of outputting a feedback signal, such as an encoder, to control the motion of the image sensor 22.
Alternatively, the linear output 212 is a screw or a conveyor belt. When the linear output member 212 is a screw rod, one end of the screw rod is connected with the output end of the driving motor 211, the other end of the screw rod is fixed with the image sensor 22, the screw rod can convert the rotation of the driving motor 211 into linear motion, and the length direction of the screw rod is the motion direction of the image sensor 22. When the linear output member 212 is a conveyor belt, the driving motor 211 drives the conveyor belt to move, and the image sensor 22 is fixed to the conveyor belt to move together with the conveyor belt.
Referring to fig. 1, in one embodiment, a banknote moving mechanism 3 is provided in a banknote case 1, the banknote moving mechanism 3 is used for driving stacked banknotes 010 to move, the banknote moving mechanism 3 includes a tray 32 and a tray transmission assembly 31, the tray 32 is used for carrying stacked banknotes 010, and the tray transmission assembly 31 is connected with the tray 32 and is used for driving the tray 32 to move up and down. In this embodiment, the banknotes 010 are vertically stacked, the tray 32 is provided at the bottom of the stacked banknotes 010 to carry the banknotes 010, and the output direction of the tray transmission assembly 31 is also the vertical direction.
Alternatively, the tray transmission assembly 31 and the image transmission assembly 21 are identical in structure. For example, the tray driving assembly 31 includes a driving motor 211 and a linear output member 212 drivingly connected to the driving motor 211, and the linear output member 212 may be a screw or a conveyor belt. Of course, the tray driving unit 31 and the image driving unit 21 may have different structures, and may be capable of driving the tray 32 to move.
Referring to fig. 3, the present invention further provides an automatic banknote estimation method, which specifically includes the following steps:
S10: acquiring a side image of the stacked banknote 010 by the image sensor 22;
s20: the number of stacked banknotes 010 is calculated.
Wherein the image sensor 22 is provided on the side of the stacked bill 010 for acquiring a side image.
More specifically, in one of the embodiments, the number of stacked banknotes 010 is calculated as follows: the thickness T 1 of the stacked banknote 010 is obtained from the side image of the stacked banknote 010, and the thickness of the single banknote 010 is T 0, and the number s=t 1/T0 of stacked banknotes 010. After the image sensor 22 acquires the image of the side face of the paper currency 010, the image acquired by the image sensor 22 in the area where the paper currency 010 is not stacked is black due to dark space light of the paper currency 010, the area where the paper currency 010 is stacked corresponds to the color of the paper currency 010, the stacked thickness of the paper currency 010 can be obtained after the black areas at the two ends of the side face image are removed, and the thickness of the single paper currency 010 is fixed, so that the number of the paper currency 010 can be calculated according to the stacked thickness of the paper currency 010. Illustratively, the thickness T 0 of a single banknote 010 is 0.1mm, the thickness T 1 of a stacked banknote 010 is 1m, and the number of banknotes 010 is 1000.
In another embodiment, the number of stacked banknotes 010 is calculated as follows: the number S 0 of black lines formed between adjacent banknotes 010 is obtained from the side image of the stacked banknote 010, and the number s=s 0 +1 of stacked banknotes 010. Since the paper currency 010 is stacked, a small gap exists between the paper currency 010 and the paper currency 010, after the image sensor 22 scans the image of the side face of the paper currency 010, the thin black lines of the image are the small gap between the paper currency 010 and the paper currency 010, and the number of the paper currency 010 can be obtained according to the number of the black lines. Illustratively, the number S 0 of black lines is 1000, and the number S of stacked banknotes 010 is 1001.
In another embodiment, the thickness T 1 of the stacked banknote 010 is obtained according to the side image of the stacked banknote 010, the thickness T 0 of the single banknote 010, the number S 1=T1/T0 of the stacked banknote 010 is calculated, the number S 2=S0 +1 of the stacked banknote 010 is obtained according to the number S 0 of black lines, and the comparison between S 1 and S 2 is performed: if S 1 and S 2 are of the same order of magnitude (e.g., S 1 is 230 and S 2 is 250), then the number of banknotes 010 is S 2; if S 1 and S 2 are not the same order of magnitude, the movement speed of the image sensor 22 is reduced, the scanning resolution is increased, and the number of black lines is re-identified until S 1 and S 2 are the same order of magnitude. The slower the scanning speed of the image sensor 22, the greater the number of lines scanned, the greater the resolution.
Before step S10, it is first determined whether the image sensor 22 is at the limit position, if so, the image sensor 22 is driven to move to the other limit position to scan the image, and if the image sensor 22 is not at the limit position, the image sensor 22 is moved to the limit position by the image transmission assembly 21, and then the side face of the bill 010 is scanned to acquire the side face image of the stacked bill 010.
After step S20 or after step S10, a side image of each banknote 010 is obtained from the side images of the stacked banknotes 010, and whether the banknote 010 is a genuine banknote is determined from the side color of each banknote 010; if the side face color of the same paper money 010 is consistent, the paper money 010 is a counterfeit money; if the side colors of the same banknote 010 are different, the banknote is a true banknote. Therefore, after the illegal person takes out the paper currency 010 in the paper currency box 1, white paper or other paper charges are used, after the color of the side face of the paper currency 010 at the detection position is consistent, workers can be reminded in the modes of photoelectric alarm, system popup window alarm and the like, and the occurrence of the condition of guarding and theft inside the bank can be reduced. For example, a 100 yuan banknote of 2015 edition has a white left mercury region and a red right most region when viewed from the side, and a small white right most region, and can upload a side image of a 100 yuan banknote to the control module 23 or the image sensor 22, and the side color of the 100 yuan banknote is different from the color distribution, and is not the 100 yuan banknote.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The automatic banknote evaluating method is applied to an automatic banknote evaluating box, the automatic banknote evaluating box comprises a banknote box used for stacking and placing banknotes and a banknote evaluating mechanism used for detecting the number of the banknotes in the banknote box, the banknote evaluating mechanism is arranged on the side face of the banknote box, the banknote evaluating mechanism comprises an image transmission assembly and an image sensor used for acquiring side face images of the stacked and placed banknotes, and the image transmission assembly is in transmission connection with the image sensor; a paper currency moving mechanism is arranged in the paper currency box and is used for driving the stacked paper currency to move, the automatic banknote evaluating method is characterized by comprising the following steps of:
acquiring a side image of the stacked banknote by an image sensor;
Calculating to obtain the number of stacked paper money;
the calculation of the number of stacked paper money comprises
According to the side images of the stacked paper currency, the thickness T 1 of the stacked paper currency is obtained, the thickness of a single paper currency is T 0, and the number S 1=T1/T0 of the stacked paper currency is calculated;
Obtaining the number S 0 of black lines formed between adjacent paper currencies according to the side images of the stacked paper currencies, obtaining the number S 2=S0 +1 of the stacked paper currencies, and comparing S 1 with S 2:
if S 1 and S 2 are of the same order of magnitude, the number of paper money is S 2; if S 1 and S 2 are not the same order of magnitude, the movement speed of the image sensor is reduced, the scanning resolution is increased, and the number of black lines is re-identified until S 1 and S 2 are the same order of magnitude.
2. The automatic banknote evaluation method according to claim 1, further comprising, after the step of calculating the number of stacked banknotes, the steps of: obtaining side images of each banknote according to the side images of the stacked banknotes, and judging whether the banknote is a true banknote according to the side color of each banknote; if the side face of the same banknote is consistent in color, the banknote is a counterfeit banknote; if the side colors of the same banknote are different, the banknote is a true banknote.
3. The automatic banknote assessment method according to claim 1, wherein: the motion direction of the image sensor is parallel to the stacking direction of the paper money, the image sensor is in a strip shape, and the length direction of the image sensor is parallel to the plane where the paper money is positioned; or alternatively
The motion direction of the image sensor is parallel to the plane where the paper currency is located, the image sensor is in a strip shape, and the length direction of the image sensor is parallel to the stacking direction of the paper currency.
4. An automatic banknote assessment method according to claim 3, wherein: and in-place sensors are arranged at two extreme positions of the stroke of the image sensor.
5. The automatic banknote assessment method according to claim 1, wherein: the side of the paper money box facing the image sensor is transparent; or alternatively
One side of the paper money box facing the image sensor is provided with a scanning window for the image sensor to scan.
6. The automatic banknote assessment method according to claim 1, wherein: the image transmission assembly comprises a driving motor and a linear output piece in transmission connection with the driving motor, and the image sensor is fixed on the linear output piece.
7. The automatic banknote assessment method according to claim 6, wherein: the linear output piece is a screw rod or a conveyor belt.
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| CN113493040A (en) * | 2020-04-07 | 2021-10-12 | 海太半导体（无锡）有限公司 | Novel material-counting and labeling method |
| CN113284288B (en) * | 2020-04-29 | 2023-04-28 | 深圳怡化电脑股份有限公司 | Method and device for adjusting medium bearing assembly |
| CN114580581A (en) * | 2020-11-30 | 2022-06-03 | 航天信息股份有限公司 | Certificate conveying method, device, equipment and medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2819325Y (en) * | 2005-08-31 | 2006-09-20 | 北京凌云光视数字图像技术有限公司 | Banknote counter by linear camera scanning mode vertically |
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