CN108010184A - A kind of detection method and device of bank note dog-ear - Google Patents
A kind of detection method and device of bank note dog-ear Download PDFInfo
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- CN108010184A CN108010184A CN201610946354.4A CN201610946354A CN108010184A CN 108010184 A CN108010184 A CN 108010184A CN 201610946354 A CN201610946354 A CN 201610946354A CN 108010184 A CN108010184 A CN 108010184A
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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
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/16—Testing the dimensions
- G07D7/164—Thickness
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Abstract
The embodiment of the invention discloses a kind of detection method and device of bank note dog-ear.This method includes：Search in each one of bank note both ends to be detected or the thickness data of each two passages and whether there is thickness abnormity region；If there are the thickness abnormity region, the start-stop line number and respective channel number in the thickness abnormity region are recorded；According to the start-stop line number, the thickness data length of the respective channel number is determined, and the thickness data length is compared with default length of paper currency, obtain length comparative result；According to the length comparative result, the existence of dog-ear in the bank note to be detected is determined.Through the above technical solutions, realizing merely with the thickness data of bank note to be detected to detect the dog-ear in bank note to be detected, data processing amount and operation time can be reduced.
Description
Technical field
The present embodiments relate to bill handling technology, more particularly to a kind of detection method and device of bank note dog-ear.
Background technology
The more long bank note that commercially circulates inevitably has dog-ear, and this bank note for having dog-ear is easy to be known by money-checking equipment
Not Wei improper paper money, so as to influence the discrimination of bank note.
There is the scheme for being detected and identifying to bank note dog-ear using the view data of bank note in the prior art, the program is first
The bank note absent region in 4 angles of bank note is found out in the infrared external reflection image of bank note, edge detection then is carried out to the region
To judge whether there is the straight line of dog-ear in the region, determine whether the absent region is folding finally by infrared transmission image
Angle.Above-mentioned technical proposal can identify the dog-ear of bank note, but need to obtain a variety of picture numbers being mutually matched of bank note at the same time
According to.
The content of the invention
The embodiment of the present invention provides a kind of detection method and device of bank note dog-ear, to realize the thickness number merely with bank note
It is detected according to the dog-ear to bank note, data processing amount and operation time can be reduced.
In a first aspect, an embodiment of the present invention provides a kind of detection method of bank note dog-ear, comprise the following steps：
Search in each one of bank note both ends to be detected or the thickness data of each two passages and whether there is thickness abnormity area
Domain；
If there are the thickness abnormity region, the start-stop line number and respective channel number in the thickness abnormity region are recorded；
According to the start-stop line number, the thickness data length of the respective channel number is determined, and the thickness data is grown
Degree obtains length comparative result compared with default length of paper currency；
According to the length comparative result, the existence of dog-ear in the bank note to be detected is determined.
Alternatively, search in each one of bank note both ends to be detected or the thickness data of each two passages and whether there is thickness
Abnormal area includes：
A, the single-pass thickness data in described each one or each two passages is extracted；
B, single channel thickness data and the default banknote thickness are made the difference, determines that difference is more than the company of preset thickness threshold value
Continuous points；
C, if continuous points are greater than or equal to default points, it is determined that by corresponding single channel thickness data shape of continuously counting
Into thickness data region be thickness abnormity region；
A-c steps are repeated, until completing the lookup in thickness abnormity region to each described each one or each two passages.
Alternatively, according to the length comparative result, determining the existence of dog-ear in the bank note to be detected includes：
If the thickness data length is less than the default length of paper currency, it is determined that there is folding in the bank note to be detected
Angle；
If the thickness data length is not less than the default length of paper currency, it is determined that is not present in the bank note to be detected
Dog-ear.
Further, according to the length comparative result, determine in the bank note to be detected after the existence of dog-ear,
The above method further includes：If the dog-ear exists, according to the respective channel number and the start-stop line number, the dog-ear is determined
Position in the bank note to be detected.
Alternatively, whether deposited in the thickness data of search bank note both ends to be detected each one or each two passages
After thickness abnormity region, and if recording the thickness abnormity region there are the thickness abnormity region described
Before start-stop line number and respective channel number, the method further includes：It is described to be detected if the thickness abnormity region is not present
Dog-ear is not present in bank note.
On the other hand, the embodiment of the present invention additionally provides a kind of detection device of bank note dog-ear, which includes：
Thickness abnormity regional search module, for searching each one of bank note both ends to be detected or the thickness of each two passages
It whether there is thickness abnormity region in data；
Start-stop line number logging modle, if for there are the thickness abnormity region, recording the thickness abnormity region
Start-stop line number and respective channel number；
Length comparative result determining module, for according to the start-stop line number, determining the thickness number of the respective channel number
Compare according to length, and by the thickness data length with default length of paper currency, obtain length comparative result；
First dog-ear detection module, for according to the length comparative result, determining dog-ear in the bank note to be detected
Existence.
Alternatively, thickness abnormity regional search module is specifically used for：
A, the single channel thickness data in described each one or each two passages is extracted；
B, single channel thickness data and the default banknote thickness are made the difference, determines that difference is more than the preset thickness threshold value
Continuous points；
C, if continuous points are greater than or equal to default points, it is determined that by corresponding single channel thickness data shape of continuously counting
Into thickness data region be thickness abnormity region；
A-c steps are repeated, until completing the lookup in thickness abnormity region to each described each one or each two passages.
Alternatively, the first dog-ear detection module is specifically used for：If the thickness data length is less than the default bank note length
Degree, it is determined that there are dog-ear in the bank note to be detected；If the thickness data length is not less than the default length of paper currency,
Determine that dog-ear is not present in the bank note to be detected.
Further, on the basis of above device, which further includes：Dog-ear position determination module, for described
According to the length comparative result, determine in the bank note to be detected after the existence of dog-ear, if the dog-ear exists, according to
According to the respective channel number and the start-stop line number, position of the dog-ear in the bank note to be detected is determined.
Alternatively, on the basis of above device, which further includes the second dog-ear detection module, in the lookup
After whether there is thickness abnormity region in each one of bank note both ends to be detected or the thickness data of each two passages, and
If described there are the thickness abnormity region, before the start-stop line number and respective channel number that record the thickness abnormity region,
If the thickness abnormity region is not present, dog-ear is not present in the bank note to be detected.
The embodiment of the present invention by searching for being in each one of bank note both ends to be detected or the thickness data of each two passages
It is no and the corresponding start-stop line number in the thickness abnormity region and channel number to be recorded in the presence of it there are thickness abnormity region, then
Determine the thickness data length of passage where thickness abnormity region according to start-stop line number, and by the thickness data length and default paper
Coin length compares, and the existence of dog-ear in bank note to be detected is determined according to comparative result, realizes merely with bank note to be detected
Thickness data detect the dog-ear in bank note to be detected, can reduce data processing amount and operation time.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the detection method of bank note dog-ear in the embodiment of the present invention one；
Fig. 2 is the signal walked thickness transducer during paper money and gather banknote thickness data to be detected in the embodiment of the present invention
Figure；
Fig. 3 a are the thickness data schematic diagrames of the normal bank note of the thickness transducer collection in the embodiment of the present invention one；
Fig. 3 b are the thickness data schematic diagrames for having dog-ear bank note of the thickness transducer collection in the embodiment of the present invention one；
Fig. 4 is a kind of flow chart of the detection method of bank note dog-ear in the embodiment of the present invention two；
Fig. 5 is the thickness data schematic diagram of the bank note to be detected of the passage containing dog-ear in the embodiment of the present invention two；
Fig. 6 is a kind of structure diagram of the detection device of bank note dog-ear in the embodiment of the present invention three；
Fig. 7 is a kind of structure diagram of the detection device of bank note dog-ear in the embodiment of the present invention four.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
It illustrate only part related to the present invention rather than entire infrastructure in description, attached drawing.
Embodiment one
Fig. 1 is a kind of flow chart of the detection method for bank note dog-ear that the embodiment of the present invention one provides, and this method can be by
The detection device of bank note dog-ear performs, which can be realized that the device can be integrated in by the mode of software and/or hardware
Any need is carried out in the finance device of paper money recognition, such as typically currency examination device, paper money counter or cleaning-sorting machine etc..Specifically include
Following steps：
It is different with the presence or absence of thickness in the thickness data of S110, search bank note both ends to be detected each one or each two passages
Normal region.
Wherein, each passage for detecting bank note both ends refers to all passages of the corresponding thickness data of bank note to be detected
In leftmost a passage and rightmost a passage, totally two passages.What each two passages at detection bank note both ends referred to
Be the corresponding thickness data of bank note to be detected all passages in leftmost two passages and rightmost two passages, totally four
A passage.Thickness abnormity region refers to thickness data average of the thickness value than the same area of normal bank note or normal bank note
Thickness data average is more than the region of preset thickness threshold value.Preset thickness threshold value is an empirical value, it is by bank note
The thickness value of the thickness data in dog-ear region and normal bank note carries out many experiments and obtains, for example preset thickness threshold value is set
The numerical value being set at the thickness data average 50% of normal bank note.And the thickness data of the normal bank note obtained in experimentation is equal
Value is exactly default banknote thickness.
Specifically, the thickness number of the bank note to be detected of each passage in bank note both ends to be detected or each two passages is obtained
According to, then the thickness data of the bank note to be detected of above-mentioned passage is compared with default banknote thickness and preset thickness threshold value, with
This whether there is thickness abnormity region to search in above-mentioned required passage.
For example, as shown in Fig. 2, be provided with the sensor unit 202 that a row lays laterally side by side in thickness transducer 201,
One sensor unit 202 corresponds to a passage 203, then the thickness sensing for including 10 sensor units 202 shown in figure
Device 201 is properly termed as 10 channel thickness sensors.By all passages 203 according to 204 number consecutively of numbering direction for 1,2 ...,
9 and 10, then each passage in bank note both ends to be detected is exactly the passage that channel number is 1 and 10, and bank note both ends to be detected each two
A passage is exactly the passage that channel number is 1,2,9 and 10.
Bank note 205 to be detected will gather one along paper money direction 206 is walked by thickness transducer 201, each sensor unit 202
The relatively independent one-dimensional original thickness data of bar, then 10 channel thickness sensors shown in figure can gather 10 original thickness
Degrees of data.Fig. 3 a are 10 original thickness schematic diagram datas of the normal bank note 2051 that thickness transducer 201 gathers, and Fig. 3 b are thick
Spend 10 original thickness schematic diagram datas for having dog-ear bank note 2052 that sensor 201 gathers.Can from Fig. 3 a and Fig. 3 b
A data line is corresponded to the sensor unit each numbered, it is the original thickness number that the sensor unit detects
According to the connecting line perpendicular to banknote locations coordinate line between adjacent two lines is not thickness data, only for data display
Connecting line.Go out the thickness number of the bank note to be detected of required passage from all original thickness extracting datas of Fig. 3 a or Fig. 3 b
According to.
There is the presence of dog-ear 207 in dog-ear bank note 2052 in Fig. 2 so that one or two passage of the bank note right end is (i.e.
Passage or channel number that channel number is 10 are 9 and 10 passage) thickness data than other passages thickness data average or pre-
If banknote thickness will be greatly at least one times, it is possible to by the thickness data of the 9th passage and/or the bank note to be detected of the 10th passage with
Default banknote thickness compares with preset thickness threshold value, whether has thickness abnormity region in above-mentioned passage with this to search.
It should be noted that the thickness data that the embodiment of the present invention can obtain each passage in bank note both ends to be detected is used
In detection dog-ear, the thickness data that can also obtain each two passages in bank note both ends to be detected is used to detect dog-ear.Wherein select
The thickness data progress dog-ear detection of each two passages allows for bank note to be detected, and walking paper money process, there may be horizontal-shift
Or the deflection of certain angle so that the bank note number of very small area may be free of or only included in each passage most on side
According to, and cause the situation of dog-ear missing inspection.Thus more suitable scheme can be selected according to the concrete condition of device therefor.Than
It such as can definitely know that thickness transducer used completely covers whole bank note to be detected just, i.e., in each passage of thickness transducer
Capital covering part bank note to be detected, then can be carried out with the thickness data of each passage at Selection utilization bank note both ends to be detected
The scheme of dog-ear detection, further to reduce data processing amount, so as to more save data processing time；And work as thickness used
Sensor covering surface is wider so that when may be without bank note part to be detected in the passage most on side, then Selection utilization be to be detected
The thickness data of each two passages at bank note both ends carries out the scheme of dog-ear detection, to ensure that testing result is relatively reliable.
If S120, there are the thickness abnormity region, the start-stop line number in the thickness abnormity region and corresponding logical is recorded
Taoist monastic name.
Specifically, if determining that there are thickness in each one of bank note both ends to be detected or each two passages in step S110
Abnormal area, then record start-stop line number channel number corresponding with its in the thickness abnormity region.
For example, as shown in Fig. 2, the dog-ear 207 for having dog-ear bank note 2502 can cause the thickness that the channel number in Fig. 3 b is 9 and 10
There are thickness abnormity region in degrees of data, then after the lookup by step S110, it is necessary to which the thickness that record search arrives is different
In start-stop line number and channel number of the normal region in the thickness data of bank note to be detected, i.e. recording channel number 10, channel number 10
Originate the cut-off line number 2101 in line number 2091 and channel number 10, or the initial row in recording channel number 9 and 10, channel number 9
Numbers 2092, the cut-off line number 2102 in channel number 9, the cut-off line number in starting line number 2091 and channel number 10 in channel number 10
2101。
S130, according to the start-stop line number, determine the thickness data length of the respective channel number, and by the thickness number
According to length compared with default length of paper currency, length comparative result is obtained.
Wherein, thickness data length is that the data of the thickness data of the bank note to be detected of thickness transducer collection are always counted,
It is related with the sample frequency of thickness transducer.Such as the thickness data length 2122 of channel number 9 is exactly from paper to be detected in Fig. 2
The starting line number 211 of the thickness data of coin is always counted to the data between the cut-off line number 2102 in channel number 9, namely channel number
The numerical value of cut-off line number 2102 in 9；The thickness data length 2121 of channel number 10 is exactly the thickness data from bank note to be detected
Starting line number 211 always count to the data between the cut-off line number 2101 in channel number 10, namely the cut-off in channel number 10
The numerical value of line number 2101.And to walk paper money direction 206 as reference, when dog-ear is different in the upper right corner of bank note or the upper left corner, i.e. thickness
Normal region is at the starting position of bank note both ends to be detected each one or each two channel thickness data, the thickness of its respective channel
Data length is exactly the total point of data the cut-off line number from the starting line number in thickness abnormity region to the channel thickness data
Number.
Default length of paper currency, i.e., the thickness data length of normal bank note, is exactly short side of the thickness transducer in normal bank note
Total points of the thickness data of the normal bank note gathered on direction, generally have selected the currency type of thickness transducer and bank note to be detected
Afterwards, which just can determine.For example with such as Fig. 2 general 10 channel thickness sensor when, preset bank note
Length 213 is exactly 90 data points.From figure 2, it is seen that the thickness data length of channel number 9 just with default length of paper currency 213
Numerical value is identical, i.e. the thickness data length of channel number 9 is also 90 data points in Fig. 2.
Specifically, according to the start-stop line number in the thickness abnormity region recorded in step S120, the thickness abnormity region is determined
The thickness data length of place passage (i.e. respective channel number), then by the thickness data length compared with default length of paper currency,
Obtain length comparative result.For example, according to the thickness data length that channel number 10 is determined by line number in channel number 10 in Fig. 2
2121, then by the thickness data length compared with default length of paper currency 213, obtain length comparative result.
S140, according to the length comparative result, determine the existence of dog-ear in the bank note to be detected.
Specifically, the presence in thickness abnormity region means in bank note to be detected there may be dog-ear or is stained with such as glue
The attachment of band.When being stained with the attachment of such as adhesive tape in bank note to be detected, the thickness data length of its respective channel is general
Default length of paper currency can be equal to.And when, there are during dog-ear, the thickness data length of its respective channel generally can in bank note to be detected
Less than default length of paper currency.So on the premise of step S120 determines there are thickness abnormity region, it is possible to pass through step
The length comparative result that S130 is obtained determines the presence for whether having dog-ear in bank note to be detected, that is, determines in bank note to be detected
The existence of dog-ear.
For example, the presence of dog-ear 207 to lack bank note dog-ear in the thickness data of channel number 9 and channel number 10 in Fig. 2
The thickness data of empty portions 208 afterwards, so that the thickness data length of the two passages may be thicker than normal bank note
Degrees of data length is small.So it can be come true according to channel number 9 in step S130 and/or the length comparative result of channel number 10
Whether there is dog-ear in fixed bank note 205 to be detected.
Exemplarily, above-mentioned steps S140 can be specifically：
If the thickness data length is less than the default length of paper currency, it is determined that there is folding in the bank note to be detected
Angle；If the thickness data length is not less than the default length of paper currency, it is determined that dog-ear is not present in the bank note to be detected.
Specifically, in each one or each two passages of bank note both ends to be detected at least one passage thickness data length
Less than default length of paper currency, it is possible to determine that there are dog-ear in bank note to be detected；, whereas if no in above-mentioned all passages appoint
The thickness data length of what passage is less than default length of paper currency, then dog-ear just is not present in the bank note to be detected.
As shown in Fig. 2, if the thickness data length 2121 of channel number 10 is less than default length of paper currency 213, or passage
It is at least one in number 9 thickness data length 2122 and the thickness data length 2121 of channel number 10 to be less than default length of paper currency
213, then be assured that in the bank note 205 to be detected there is dog-ear.It will become apparent from the thickness data length of channel number 10 from figure
Degree 2121 is less than default length of paper currency 213, so bank note to be detected 2052 is that have dog-ear bank note.
The technical solution of the present embodiment, by searching for each one of bank note both ends to be detected or the thickness number of each two passages
It whether there is thickness abnormity region in, and the corresponding start-stop line number in the thickness abnormity region and passage recorded in the presence of it
Number, determine in bank note to be detected there may be dog-ear with this or be stained with attachment, then determine that thickness is different according to start-stop line number
The thickness data length of passage where normal region, using have the thickness data length of dog-ear bank note must be less than default length of paper currency as
Foundation, which is compared with default length of paper currency, dog-ear in bank note to be detected is determined according to comparative result
Existence, realizes merely with the thickness data of bank note to be detected to detect the dog-ear in bank note to be detected, can reduce data
Treating capacity and operation time.
Embodiment two
Fig. 4 is a kind of flow chart of the detection method of bank note dog-ear provided by Embodiment 2 of the present invention, and the present embodiment is upper
On the basis of stating embodiment, step S110 wherein is optimized for step S410 to step S440.Wherein with above-described embodiment phase
Same step or figure unit uses its corresponding reference numeral, and the explanation of same as the previously described embodiments or corresponding term is herein
Repeat no more.The detection method of bank note dog-ear provided by Embodiment 2 of the present invention is illustrated with reference to Fig. 4, the present embodiment
Method include：
Single channel thickness data in S410, extraction each one or each two passages.
Specifically, according to the explanation of a step S110 passage each to bank note both ends to be detected or each two passages, carry
The single channel thickness data in described each one or each two passages is taken, is exactly to obtain bank note both ends to be detected according to a certain order
The original thickness data of some passage (i.e. single channel) in two passages or four passages, then this is to original thickness data
Denoising is carried out, to obtain the thickness data of the single pass bank note to be detected.
For example, as shown in Fig. 2, reference number direction 204, using 1 to 10 order to bank note both ends to be detected channel number as 1
Two passages or channel number with 10 are that the single channel in 1,2,9 and 10 four passages carries out carrying for original thickness data
Take.And from Fig. 3 a and Fig. 3 b it can be seen that in original thickness data comprising bank note to be detected by when thickness transducer gather
The thickness data 301 of bank note and without bank note by when the thickness data 302 of background that gathers of thickness transducer.So needs pair
The single channel original thickness data of said extracted carry out denoising, to extract the bank note to be detected in original thickness data
Thickness data 301, that is, obtain the thickness data of the single pass bank note to be detected.
S420, make the difference single channel thickness data and the default banknote thickness, determines that difference is more than preset thickness threshold value
Continuous points.
Specifically, it is each thickness value in the single channel thickness data obtained in step S410 and default bank note is thick
Degree makes the difference, and obtains the difference at each thickness data point, which is made comparisons with preset thickness threshold value again, determines relatively to tie
Difference is more than the position of the thickness data point of preset thickness threshold value in fruit, and the thickness of above-mentioned condition is met according to these position judgments
Whether data point is continuous, if continuous thickness data point occurs, then counts the number of the thickness data point continuously occurred, i.e.,
Continuous points.
For example, as shown in figure 5, in figure 501 be the channel number 10 extracted from Fig. 3 a original thickness data, 502 in figure
It is the original thickness data of the channel number 10 extracted from Fig. 3 b, 503 be the corresponding data cable of default banknote thickness, i.e., default paper
Coin relative contour, 504 be the size of preset thickness threshold value, and 505 be that default banknote thickness 503 is added with preset thickness threshold value 504
The corresponding data cable of data value afterwards, i.e. judgment threshold line.According to the above description, difference is more than preset thickness threshold value 504 in figure
Thickness data point should be all thickness data points on the judgment threshold line 505.Then it is continuously thick to count position
The number at number of degrees strong point, i.e., the number of the continuous thickness data point in position is 4 in region 506 on Statistic analysis threshold line 505.
If S430, continuous points are greater than or equal to default points, it is determined that by corresponding single channel thickness number of continuously counting
Thickness data region according to formation is thickness abnormity region.
Wherein, default points are the mechanical structure according to thickness transducer, specifically the sampling frequency of thickness transducer
Rate, the number of the thickness data point set in advance for being used to judge thickness abnormity region.For example with as shown in Figure 2 general 10
During channel thickness sensor, default points can be set as 3 thickness data points.
Specifically, if the continuous points determined in step S420 are greater than or equal to default points, then be assured that
The thickness data region that corresponding thickness data point is formed of continuously being counted by these is thickness abnormity region, you can to determine step
There are thickness abnormity region in the single pass thickness data of the bank note to be detected extracted in S410, namely this single-pass is determined
The corresponding bank note part to be detected in road is there may be dog-ear or is stained with the attachment of such as adhesive tape.Such as judgment threshold line in Fig. 5
The position of 4 thickness data points on 505 in region 506 is continuous, then it is a thickness abnormity area that can determine the region
There are thickness abnormity region in the single channel thickness data that domain, i.e. channel number are 10.
S440, judge whether to complete each described each one or each two passages the lookup in thickness abnormity region.
Specifically, above-mentioned steps S410 to step S430 is the mistake that thickness abnormity regional search is carried out for single passage
Journey, and at least will totally two or totally four passages carry out thickness abnormity region to bank note both ends to be detected in the embodiment of the present invention
Search, so, it is necessary to judge whether to carry out required each passage after execution of step S410 to step S430
The lookup in thickness abnormity region.If having the single channel thickness data for carrying out thickness abnormity regional search or not after judgement,
Step S410 is so just skipped to, and is continued to execute to step S430, is then made whether again to each described each one or each two
A passage completes the judgement of the lookup in thickness abnormity region, so circulation, until judging result is completed to each described
Each one or each two passages complete the lookup in thickness abnormity region, can skip to step S120 at this time, continue to execute and treat
The step of dog-ear of detection bank note is detected.
If S120, there are the thickness abnormity region, the start-stop line number in the thickness abnormity region and corresponding logical is recorded
Taoist monastic name.
S130, according to the start-stop line number, determine the thickness data length of the respective channel number, and by the thickness number
According to length compared with default length of paper currency, length comparative result is obtained.
S140, according to the length comparative result, determine the existence of dog-ear in the bank note to be detected.
Further, on the basis of above-mentioned all embodiments, according to length comparative result, determine in bank note to be detected
After the existence of dog-ear, the method for the embodiment of the present invention further includes：If the dog-ear exists, according to the respective channel number
And the start-stop line number, determine position of the dog-ear in the bank note to be detected.
Specifically, if step S140 determines that there are dog-ear in bank note to be detected, then can be further according in step S120
The start-stop line number and respective channel number in the thickness abnormity region of record, determine specific location of the dog-ear in bank note to be detected.
For example, as shown in Fig. 2, there is the thickness abnormity region in dog-ear bank note 2052 to be respectively present in channel number as 9 and 10
Passage in, then to walk paper money direction 206 as reference, can tentatively judge dog-ear in the upper right corner of bank note to be detected or bottom right
Angle.Then, according to starting line number 2092 of the thickness abnormity region in channel number 9 or the starting line number 2091 in channel number 10
More than the centre position line number 214 of bank note to be detected, it may be determined that the dog-ear is in the lower right corner of bank note to be detected.If alternatively,
The dog-ear of bank note to be detected is not the situation shown in Fig. 2, but starting line number 2092 of the thickness abnormity region in channel number 9
Or the starting line number 2091 in channel number 10 is more than the starting line number 211 of bank note to be detected, but it is less than bank note to be detected
Centre position line number 214, then the dog-ear can be determined in the upper right corner of bank note to be detected.
Similarly, if thickness abnormity region is present in the passage that channel number is 1 or 2, then be to walk paper money direction 206
Reference, can tentatively judge dog-ear in the upper left corner of bank note to be detected or the lower left corner.Then, according to thickness abnormity region in passage
Starting line number in number 1 or the starting line number in channel number 2 are more than the centre position line number 214 of bank note to be detected, can be true
The fixed dog-ear is in the lower left corner of bank note to be detected.Alternatively, starting line number of the thickness abnormity region in channel number 1 or in channel number
Starting line number in 2 is more than the starting line number 211 of bank note to be detected, but is less than the centre position line number 214 of bank note to be detected,
It can so determine the dog-ear in the upper left corner of bank note to be detected.
Alternatively, on the basis of above-mentioned all embodiments, each one or two each at lookup bank note both ends to be detected
After whether there is thickness abnormity region in the thickness data of passage, and if described there are the thickness abnormity region,
Before the start-stop line number and respective channel number that record the thickness abnormity region, the method for the embodiment of the present invention can also include：
If the thickness abnormity region is not present, dog-ear is not present in the bank note to be detected.
Specifically, step S110 or step S410 to step S440 be to the thickness data of all passages that needs are used into
The lookup in row thickness abnormity region, and step S120 to step S140 is there is thickness at least one passage in above-mentioned all passages
Carry out whether there is in bank note to be detected the detection of dog-ear in the case of degree abnormal area.So between the above process, that is, walk
Suddenly, can in the case of all thickness abnormity region is not present in any one passage in all passages between S110 and step S120
Directly to judge dog-ear is not present in bank note to be detected.
The technical solution of the present embodiment, makes the difference by extracting single channel thickness data, and by itself and default banknote thickness, then
Difference is made comparisons more than continuously counting for preset thickness threshold value with default points, is greater than or equal to default points in continuous points
When, judge that the corresponding thickness data region of continuously counting is thickness abnormity region, then circulation is completed to bank note to be detected
Each one of both ends or the lookup in the thickness abnormity region of each two passages, in definite thickness abnormity region and record its ranks number
After channel number, the thickness data length in above-mentioned thickness abnormity region is compared with default length of paper currency, is tied according to comparing
Fruit determines the existence of dog-ear in bank note to be detected, realizes merely with the thickness data of bank note to be detected to detect paper to be detected
Dog-ear in coin, can reduce data processing amount and operation time.
Embodiment three
A kind of structure diagram of the detection device for bank note dog-ear that Fig. 6 provides for the embodiment of the present invention three, the present embodiment
In explanation identical with any of the above-described embodiment or corresponding term details are not described herein.The device can include：
Thickness abnormity regional search module 610, for searching each one of bank note both ends to be detected or each two passages
It whether there is thickness abnormity region in thickness data.
Start-stop line number logging modle 630, if determining that there are the thickness abnormity for thickness abnormity regional search module 610
Region, then record the start-stop line number and respective channel number in the thickness abnormity region.
Length comparative result determining module 640, for the start-stop line number recorded according to start-stop line number logging modle 630, really
The thickness data length of the fixed respective channel number, and the thickness data length is compared with default length of paper currency, obtain
Length comparative result.
First dog-ear detection module 650, compares knot for the length definite according to length comparative result determining module 640
Fruit, determines the existence of dog-ear in the bank note to be detected.
Alternatively, the first dog-ear detection module 650 is specifically used for：If the thickness data length is less than the default bank note
Length, it is determined that there are dog-ear in the bank note to be detected；If the thickness data length is not less than the default length of paper currency,
Then determine that dog-ear is not present in the bank note to be detected.
By a kind of detection device of bank note dog-ear of the embodiment of the present invention three, merely with the thickness data of bank note to be detected
To detect the dog-ear in bank note to be detected, data processing amount and operation time can be reduced.
The detection device for the bank note dog-ear that the embodiment of the present invention is provided can perform what any embodiment of the present invention was provided
The detection method of bank note dog-ear, possesses the corresponding function module of execution method and beneficial effect.
Example IV
A kind of structure diagram of the detection device for bank note dog-ear that Fig. 7 provides for the embodiment of the present invention four, the present embodiment
On the basis of above-described embodiment, it is illustrated and has been optimized.Figure unit wherein same as the previously described embodiments is adopted
With its corresponding reference numeral, details are not described herein for the explanation of identical with any of the above-described embodiment or corresponding term.This reality
Applying the device of example can include：
Thickness abnormity regional search module 610, is specifically used for：
A, the single channel thickness data in described each one or each two passages is extracted；
B, single channel thickness data and the default banknote thickness are made the difference, determines that difference is more than the preset thickness threshold value
Continuous points；
C, if continuous points are greater than or equal to default points, it is determined that by corresponding single channel thickness data shape of continuously counting
Into thickness data region be thickness abnormity region；
A-c steps are repeated, until completing the lookup in thickness abnormity region to each described each one or each two passages.
Second dog-ear detection module 620, if determining not deposit in bank note to be detected for thickness abnormity regional search module 610
In the thickness abnormity region, then dog-ear is not present in the bank note to be detected.
Start-stop line number logging modle 630, if determining that there are the thickness abnormity for thickness abnormity regional search module 610
Region, then record the start-stop line number and respective channel number in the thickness abnormity region.
Length comparative result determining module 640, for the start-stop line number recorded according to start-stop line number logging modle 630, really
The thickness data length of the fixed respective channel number, and the thickness data length is compared with default length of paper currency, obtain
Length comparative result.
First dog-ear detection module 650, is specifically used for：If the definite thickness data of length comparative result determining module 640
Length is less than the default length of paper currency, it is determined that there are dog-ear in the bank note to be detected；If length comparative result determines mould
The definite thickness data length of block 640 is not less than the default length of paper currency, it is determined that there is no folding in the bank note to be detected
Angle.
Dog-ear position determination module 660, if determining that dog-ear is deposited in bank note to be detected for the first dog-ear detection module 650
Then the respective channel number and start-stop line number according to the record of start-stop line number logging modle 630, determine dog-ear in bank note to be detected
Position.
By a kind of detection device of bank note dog-ear of the embodiment of the present invention four, in the thickness number merely with bank note to be detected
While according to detect the dog-ear in bank note to be detected, it may further determine that position of the dog-ear in bank note, number can be reduced
According to treating capacity and operation time.
The detection device for the bank note dog-ear that the embodiment of the present invention is provided can perform what any embodiment of the present invention was provided
The detection method of bank note dog-ear, possesses the corresponding function module of execution method and beneficial effect.
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
- A kind of 1. detection method of bank note dog-ear, it is characterised in that including：Search in each one of bank note both ends to be detected or the thickness data of each two passages and whether there is thickness abnormity region；If there are the thickness abnormity region, the start-stop line number and respective channel number in the thickness abnormity region are recorded；According to the start-stop line number, determine the thickness data length of the respective channel number, and by the thickness data length with Default length of paper currency compares, and obtains length comparative result；According to the length comparative result, the existence of dog-ear in the bank note to be detected is determined.
- 2. according to the method described in claim 1, it is characterized in that, search bank note both ends to be detected each one or each two Include in the thickness data of a passage with the presence or absence of thickness abnormity region：A, the single-pass thickness data in described each one or each two passages is extracted；B, single channel thickness data and the default banknote thickness are made the difference, determines that difference is more than the continuity point of preset thickness threshold value Number；C, if continuous points are greater than or equal to default points, it is determined that by continuously counting what corresponding single channel thickness data was formed Thickness data region is thickness abnormity region；A-c steps are repeated, until completing the lookup in thickness abnormity region to each described each one or each two passages.
- 3. according to the method described in claim 1, it is characterized in that, described according to the length comparative result, described treat is determined The existence of dog-ear includes in detection bank note：If the thickness data length is less than the default length of paper currency, it is determined that there are dog-ear in the bank note to be detected；If the thickness data length is not less than the default length of paper currency, it is determined that there is no folding in the bank note to be detected Angle.
- 4. according to claim 1-3 any one of them methods, it is characterised in that described according to the length comparative result, Determine that the method further includes in the bank note to be detected after the existence of dog-ear：If the dog-ear exists, according to the respective channel number and the start-stop line number, determine the dog-ear described to be checked Survey the position in bank note.
- 5. according to the method described in claim 1, it is characterized in that, in search bank note both ends to be detected each one or each After whether there is thickness abnormity region in the thickness data of two passages, and if there are the thickness abnormity area described Domain, then before the start-stop line number and respective channel number that record the thickness abnormity region, the method further includes：If the thickness abnormity region is not present, dog-ear is not present in the bank note to be detected.
- A kind of 6. detection device of bank note dog-ear, it is characterised in that including：Thickness abnormity regional search module, for searching each one of bank note both ends to be detected or the thickness data of each two passages In whether there is thickness abnormity region；Start-stop line number logging modle, if for there are the thickness abnormity region, recording the start-stop in the thickness abnormity region Line number and respective channel number；Length comparative result determining module, for according to the start-stop line number, determining that the thickness data of the respective channel number is grown Degree, and the thickness data length is compared with default length of paper currency, obtain length comparative result；First dog-ear detection module, for according to the length comparative result, determining the presence of dog-ear in the bank note to be detected Property.
- 7. device according to claim 6, it is characterised in that the thickness abnormity regional search module is specifically used for：A, the single channel thickness data in described each one or each two passages is extracted；B, single channel thickness data and the default banknote thickness are made the difference, determines that difference is more than the company of the preset thickness threshold value Continuous points；C, if continuous points are greater than or equal to default points, it is determined that by continuously counting what corresponding single channel thickness data was formed Thickness data region is thickness abnormity region；A-c steps are repeated, until completing the lookup in thickness abnormity region to each described each one or each two passages.
- 8. device according to claim 6, it is characterised in that the first dog-ear detection module is specifically used for：If the thickness data length is less than the default length of paper currency, it is determined that there are dog-ear in the bank note to be detected；If the thickness data length is not less than the default length of paper currency, it is determined that there is no folding in the bank note to be detected Angle.
- 9. according to claim 6-8 any one of them devices, it is characterised in that further include：Dog-ear position determination module, for, according to the length comparative result, determining dog-ear in the bank note to be detected described Existence after, if the dog-ear exist, according to the respective channel number and the start-stop line number, determine that the dog-ear exists Position in the bank note to be detected.
- 10. device according to claim 6, it is characterised in that further include：Second dog-ear detection module, for the thickness number in each one or each two passages for searching bank note both ends to be detected After whether there is thickness abnormity region in, and if recording the thickness there are the thickness abnormity region described Before the start-stop line number and respective channel number of abnormal area, if the thickness abnormity region, the bank note to be detected is not present In dog-ear is not present.
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