CN105354912B - A kind of method and device for detecting bank note - Google Patents
A kind of method and device for detecting bank note Download PDFInfo
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- CN105354912B CN105354912B CN201510583131.1A CN201510583131A CN105354912B CN 105354912 B CN105354912 B CN 105354912B CN 201510583131 A CN201510583131 A CN 201510583131A CN 105354912 B CN105354912 B CN 105354912B
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Abstract
The embodiment of the invention discloses a kind of method and device for detecting bank note, by obtaining effective thickness data corresponding to safety line region in bank note to be detected, and the average of the effective thickness data is calculated；Compare the effective thickness data and the average size, obtain the number for the connected region being more than or equal to or less than or equal to the average；Determine whether the bank note to be detected is abnormal according to the number of the connected region and the rule pre-set, so as to the position where fast and effectively positioning security line and the integrality of safety line, and its detection to abnormal thickness is had no effect on when having thickness abnormity such as to post adhesive tape in safety line.
Description
Technical field
The present embodiments relate to the technical field of bill handling, more particularly to a kind of method and device for detecting bank note.
Background technology
Safety line on bank note can influence the judgement to bank note abnormal data on thickness data, it is therefore desirable to which it is carried out
Position and integrality judge, while otherwise influence the judgement of thickness abnormity in safety line.Picture number is used in existing method mostly
According to going to position the safety line on bank note, but because the resolution ratio image of thickness transducer is much smaller, it is thus possible to make
Forbidden into thickness data positioning is mapped to from image, while can not accurately judge whether safety line is complete on thickness from image
Whole, the simple positioning to safety line in addition can not solve the detection to abnormal thickness in safety line.
The content of the invention
The purpose of the embodiment of the present invention is to propose a kind of method and device for detecting bank note, it is intended to which how solution quickly has
The problem of position from thickness to safety line of effect and integrality judge.
To use following technical scheme up to this purpose, the embodiment of the present invention：
In a first aspect, a kind of method for detecting bank note, methods described include：
Effective thickness data corresponding to safety line region in bank note to be detected are obtained, and calculate the effective thickness data
Average；
Compare the effective thickness data and the average size, acquisition be more than or equal to or less than or equal to it is described
The number of the connected region of value；
Root determines whether the bank note to be detected is abnormal with the rule pre-set according to the number of the connected region.
Preferably, it is described acquisition be more than or equal to or less than or equal to the connected region of the average number the step of in,
The connected region is more than or equal to by N number of thickness data or formed less than or equal to the continuity point of the average.
Preferably, the number according to the connected region and the rule pre-set determine that the bank note to be detected is
No exception, including：
If the number of the connected region is in the range of the fixed threshold pre-set, it is determined that the bank note to be detected
It is normal；
If the number of the connected region exceedes the fixed threshold scope that pre-sets, it is determined that the bank note to be detected is
It is abnormal.
Preferably, it is described to obtain effective thickness data corresponding to safety line region in bank note to be detected, and have described in calculating
Before the average for imitating thickness data, in addition to：
The thickness data of all areas of the bank note to be detected is obtained by thickness transducer；
The ambient noise in the thickness data is removed, obtains the effective thickness number of all areas in the bank note to be detected
According to；
According to the effective thickness data of all areas in the bank note to be detected, safety line in the bank note to be detected is intercepted
Effective thickness data corresponding to region.
Preferably, the described number according to the connected region and the rule pre-set determine the bank note to be detected
Whether after exception, in addition to：
If it is determined that the bank note to be detected is abnormal, then further the thickness of safety line on the bank note to be detected is carried out
Detection；
Thickness after contrasting detection and the thickness threshold value pre-set, determine the abnormal information of the bank note to be detected.
Second aspect, a kind of device for detecting bank note, described device include：
First acquisition module, for obtaining effective thickness data corresponding to safety line region in bank note to be detected, and calculate
The average of the effective thickness data；
Comparison module, the size for the effective thickness data and described average；
Second acquisition module, for obtaining the number for the connected region being more than or equal to or less than or equal to the average；
First determining module, determined for the number according to the connected region and the rule pre-set described to be detected
Whether bank note is abnormal.
Preferably, connected region described in second acquisition module be more than or equal to by N number of thickness data or less than etc.
Formed in the continuity point of the average.
Preferably, first determining module, including：
First determining unit, if the number for the connected region is in the range of the fixed threshold pre-set,
Determine that the bank note to be detected is normal；
Second determining unit, if the number for the connected region exceedes the fixed threshold scope pre-set, really
The fixed bank note to be detected is abnormal.
Preferably, described device also includes：
3rd acquisition module, for obtaining effective thickness data corresponding to safety line region in bank note to be detected, and calculate
Before the average of the effective thickness data, the thickness number of all areas of the bank note to be detected is obtained by thickness transducer
According to；
4th acquisition module, for removing the ambient noise in the thickness data, obtain institute in the bank note to be detected
There are the effective thickness data in region；
Interception module, it is described to be checked for the effective thickness data according to all areas in the bank note to be detected, interception
Survey effective thickness data corresponding to safety line region in bank note.
Preferably, described device also includes：
Detection module, the paper to be detected is determined according to the number of the connected region and the rule pre-set for root
Whether coin is after exception, however, it is determined that the bank note to be detected is abnormal, then further to safety line on the bank note to be detected
Thickness is detected；
Second determining module, for the thickness after contrasting detection and the thickness threshold value pre-set, determine described to be detected
The abnormal information of bank note.
The embodiment of the present invention calculates institute by obtaining effective thickness data corresponding to safety line region in bank note to be detected
State the average of effective thickness data；Compare the effective thickness data and the average size, acquisition be more than or equal to or
Less than or equal to the number of the connected region of the average；Root determines according to the number of the connected region with the rule pre-set
Whether the bank note to be detected is abnormal, so as to the complete of the position where fast and effectively positioning security line and safety line
Property, and have no effect on its detection to abnormal thickness when thering is thickness abnormity such as to post adhesive tape in safety line.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of method for detecting bank note provided in an embodiment of the present invention；
Fig. 2 is a kind of method schematic diagram for extracting banknote thickness data provided in an embodiment of the present invention；
Fig. 3 is a kind of method schematic diagram for obtaining banknote thickness data provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram for intercepting effective area data provided in an embodiment of the present invention；
Fig. 5 is the signal of the thickness data for the effective coverage that a kind of single sense channel provided in an embodiment of the present invention obtains
Figure；
Fig. 6 is a kind of schematic diagram of the average of effective coverage provided in an embodiment of the present invention；
Fig. 7 is a kind of schematic flow sheet of method for detecting bank note provided in an embodiment of the present invention；
Fig. 8 is a kind of schematic flow sheet of method for detecting bank note provided in an embodiment of the present invention；
Fig. 9 is a kind of high-level schematic functional block diagram of device for detecting bank note provided in an embodiment of the present invention；
Figure 10 is the high-level schematic functional block diagram of the first determining module 904 provided in an embodiment of the present invention；
Figure 11 is a kind of high-level schematic functional block diagram of device for detecting bank note provided in an embodiment of the present invention；
Figure 12 is a kind of high-level schematic functional block diagram of device for detecting bank note provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The specific embodiment of place description is used only for explaining the embodiment of the present invention, rather than the restriction to the embodiment of the present invention.In addition also
It should be noted that for the ease of describing, the part related to the embodiment of the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
Embodiment one
With reference to figure 1, Fig. 1 is a kind of schematic flow sheet of method for detecting bank note provided in an embodiment of the present invention.
In embodiment one, the method for the detection bank note includes：
Step 101, effective thickness data corresponding to safety line region in bank note to be detected are obtained, and are calculated described effectively thick
The average of degrees of data；
Specifically, with reference to figure 2, Fig. 2 is a kind of method signal for extracting banknote thickness data provided in an embodiment of the present invention
Figure.The detection data of single passage when extracting thickness transducer crosses paper money one by one (such as Fig. 2 is by taking the 6th sensing data as an example).
Thickness transducer is in individual bank note by all data of rear acquisition as shown in figure 3, in figure 3, three coordinates divide
Not Wei thickness size, sensor number and banknote locations, the banknote locations namely length scale.In Fig. 3, it can be seen that each
The sensor of numbering has all corresponded to single line, the thickness data that this single line detects for the sensor, between adjacent both threads
The connecting line perpendicular to banknote locations coordinate line be not thickness data, only connecting line.
The thickness transducer that a row are set laterally side by side is provided with banknote tester, bank note is tested along F in such as Fig. 2 to entrance
Paper money device, thickness transducer detect to the thickness of bank note, wherein each thickness transducer is corresponding to produce a sense channel
Data.Because the width of single thickness transducer is wider than the width of bank note safety line, therefore the thickness data body of safety line
In a present sense channel.The thickness data of safety line from the thickness data in other regions of bank note be it is different, so as to
The thickness data of single passage is extracted one by one to detect safety line.
With reference to figure 4, Fig. 4 is a kind of schematic diagram for intercepting effective area data provided in an embodiment of the present invention.Effective coverage
Intercepted according to banknote image size.Because the width of bank note is certain, therefore in the thickness data of single sense channel
In, only a fraction is the thickness data of bank note, and the partial data is intercepted by bank note developed width size.Fig. 4 is
The thickness data of the single sense channel of extraction, and Fig. 5 is belonging to of being intercepted in all thickness datas of the single sense channel
The thickness data of bank note effective coverage.It can be seen that abscissa changes from Fig. 4 and Fig. 5, abscissa in Fig. 4 and Fig. 5
It is length, ordinate is thickness.
Step 102, the effective thickness data and the average size, acquisition be more than or equal to or less than etc.
In the number of the connected region of the average；
Specifically, as shown in fig. 6, Fig. 6 is a kind of schematic diagram of the average of effective coverage provided in an embodiment of the present invention.
Preferably, it is described acquisition be more than or equal to or less than or equal to the connected region of the average number the step of in,
The connected region is more than or equal to by N number of thickness data or formed less than or equal to the continuity point of the average.
Preferably, N number of point includes but is not limited to：4 points, 5 points, 6 points or 7 points.
Using average as line is weighed, the connected region number more than average is calculated, calculates the UNICOM region less than average
Number, the size of connected region is more than or equal to 6 continuity points (as shown in Figure 6).That is, at least more than or less than the average
The point of continuous more than 6 is only a connected region.6 points are only an embodiment, can be 4 for different bank note
It is individual, 5 points, 7 points etc..
Step 103, whether the bank note to be detected is determined according to the number of the connected region and the rule pre-set
It is abnormal.
Preferably, the described number according to the connected region and the rule pre-set determine the bank note to be detected
It is whether abnormal, including：
If the number of the connected region is in the range of the fixed threshold pre-set, it is determined that the bank note to be detected
It is normal；
If the number of the connected region exceedes the fixed threshold scope that pre-sets, it is determined that the bank note to be detected is
It is abnormal.
Specifically, the thickness data that the integrality of detection safety line is the sense channel according to where the safety line is sentenced
It is disconnected, generally, in thickness data on same bank note gold thread, more than the connected region number of average and less than average
The number that connected region is alternately present is fixed threshold scope, if exceeding the scope, then it is assumed that safety line is abnormal.
Specifically, when the number that the connected region number more than average and the connected region less than average are alternately present is more than
It is the passage containing safety line that this passage is thought during equal to 3.Namely it is alternately present and then thinks the detection more than or equal to 3 times
The thickness data of passage is the thickness data of safety line position.
The embodiment of the present invention calculates institute by obtaining effective thickness data corresponding to safety line region in bank note to be detected
State the average of effective thickness data；Compare the effective thickness data and the average size, acquisition be more than or equal to or
Less than or equal to the number of the connected region of the average；Root determines according to the number of the connected region with the rule pre-set
Whether the bank note to be detected is abnormal, so as to the complete of the position where fast and effectively positioning security line and safety line
Property, and working as in safety line has thickness abnormity (such as posting adhesive tape) to have no effect on its detection to abnormal thickness.
Embodiment two
With reference to figure 7, Fig. 7 is a kind of schematic flow sheet of method for detecting bank note provided in an embodiment of the present invention.
On the basis of embodiment one, the method for the detection bank note includes：
It is described to obtain effective thickness data corresponding to safety line region in bank note to be detected, and calculate the effective thickness number
According to average before, in addition to：
Step 104, the thickness data of all areas of the bank note to be detected is obtained by thickness transducer；
Step 105, the ambient noise in the thickness data is removed, obtain all areas in the bank note to be detected has
Imitate thickness data；
Step 106, according to the effective thickness data of all areas in the bank note to be detected, the bank note to be detected is intercepted
Effective thickness data corresponding to middle safety line region.
Specifically, examining Fig. 2, Fig. 2 is a kind of method schematic diagram for extracting banknote thickness data provided in an embodiment of the present invention.
The detection data of single passage when extracting thickness transducer crosses paper money one by one (such as Fig. 2 is by taking the 6th sensing data as an example).
Thickness transducer is in individual bank note by all data of rear acquisition as shown in figure 3, in figure 3, three coordinates divide
Not Wei thickness size, sensor number and banknote locations, the banknote locations namely length scale.In Fig. 3, it can be seen that each
The sensor of numbering has all corresponded to single line, the thickness data that this single line detects for the sensor, between adjacent both threads
The connecting line perpendicular to banknote locations coordinate line be not thickness data, only connecting line.
The thickness transducer that a row are set laterally side by side is provided with banknote tester, bank note is tested along F in such as Fig. 2 to entrance
Paper money device, thickness transducer detect to the thickness of bank note, wherein each thickness transducer is corresponding to produce a sense channel
Data.Because the width of single thickness transducer is wider than the width of bank note safety line, therefore the thickness data body of safety line
In a present sense channel.The thickness data of safety line from the thickness data in other regions of bank note be it is different, so as to
The thickness data of single passage is extracted one by one to detect safety line.
With reference to figure 4, Fig. 4 is a kind of schematic diagram for intercepting effective area data provided in an embodiment of the present invention.Effective coverage
Intercepted according to banknote image size.Because the width of bank note is certain, therefore in the thickness data of single sense channel
In, only a fraction is the thickness data of bank note, and the partial data is intercepted by bank note developed width size.Fig. 4 is
The thickness data of the single sense channel of extraction, and Fig. 5 is belonging to of being intercepted in all thickness datas of the single sense channel
The thickness data of bank note effective coverage.It can be seen that abscissa changes from Fig. 4 and Fig. 5, abscissa in Fig. 4 and Fig. 5
It is length, ordinate is thickness.
Embodiment three
With reference to figure 8, Fig. 8 is a kind of schematic flow sheet of method for detecting bank note provided in an embodiment of the present invention.
On the basis of embodiment one, the described number according to the connected region and the rule pre-set determine institute
Bank note to be detected is stated whether after exception, in addition to：
Step 107, however, it is determined that the bank note to be detected is abnormal, then further to safety line on the bank note to be detected
Thickness is detected；
Step 108, the thickness after contrasting detection and the thickness threshold value pre-set, the exception of the bank note to be detected is determined
Information.
Specifically, the detection to safety line thickness abnormity is to pass through such a way：According to the thickness number due to safety line
According to having in a threshold value, such as Fig. 6, the data of safety line are not over 80, and if having pasted adhesive tape in safety line,
So the data of safety line may reach 160 or more, and the thickness abnormity of safety line is thought if beyond the threshold value.
Example IV
With reference to figure 9, Fig. 9 is a kind of high-level schematic functional block diagram of device for detecting bank note provided in an embodiment of the present invention.
In example IV, the device of the detection bank note includes：
First acquisition module 901, for obtaining effective thickness data corresponding to safety line region in bank note to be detected, and count
Calculate the average of the effective thickness data；
Specifically, with reference to figure 2, Fig. 2 is a kind of method signal for extracting banknote thickness data provided in an embodiment of the present invention
Figure.The detection data of single passage when extracting thickness transducer crosses paper money one by one (such as Fig. 2 is by taking the 6th sensing data as an example).
Thickness transducer is in individual bank note by all data of rear acquisition as shown in figure 3, in figure 3, three coordinates divide
Not Wei thickness size, sensor number and banknote locations, the banknote locations namely length scale.In Fig. 3, it can be seen that each
The sensor of numbering has all corresponded to single line, the thickness data that this single line detects for the sensor, between adjacent both threads
The connecting line perpendicular to banknote locations coordinate line be not thickness data, only connecting line.
The thickness transducer that a row are set laterally side by side is provided with banknote tester, bank note is tested along F in such as Fig. 2 to entrance
Paper money device, thickness transducer detect to the thickness of bank note, wherein each thickness transducer is corresponding to produce a sense channel
Data.Because the width of single thickness transducer is wider than the width of bank note safety line, therefore the thickness data body of safety line
In a present sense channel.The thickness data of safety line from the thickness data in other regions of bank note be it is different, so as to
The thickness data of single passage is extracted one by one to detect safety line.
With reference to figure 4, Fig. 4 is a kind of schematic diagram for intercepting effective area data provided in an embodiment of the present invention.Effective coverage
Intercepted according to banknote image size.Because the width of bank note is certain, therefore in the thickness data of single sense channel
In, only a fraction is the thickness data of bank note, and the partial data is intercepted by bank note developed width size.Fig. 4 is
The thickness data of the single sense channel of extraction, and Fig. 5 is belonging to of being intercepted in all thickness datas of the single sense channel
The thickness data of bank note effective coverage.It can be seen that abscissa changes from Fig. 4 and Fig. 5, abscissa in Fig. 4 and Fig. 5
It is length, ordinate is thickness.
Comparison module 902, the size for the effective thickness data and described average；
Second acquisition module 903, for obtaining the number for the connected region being more than or equal to or less than or equal to the average；
Preferably, with reference to figure 10, Figure 10 is the functional module signal of the second acquisition module 903 provided in an embodiment of the present invention
Figure.
Connected region described in second acquisition module be more than or equal to by N number of thickness data or less than or equal to it is described
The continuity point of value is formed.
Wherein, N number of point includes but is not limited to：4 points, 5 points, 6 points or 7 points.
Using average as line is weighed, the connected region number more than average is calculated, calculates the UNICOM region less than average
Number, the size of connected region is more than or equal to 6 continuity points (as shown in Figure 6).That is, at least more than or less than the average
The point of continuous more than 6 is only a connected region.6 points are only an embodiment, can be 4 for different bank note
It is individual, 5 points, 7 points etc..
First determining module 904, for being treated described in the number according to the connected region and the rule determination pre-set
Whether abnormal detect bank note.
Preferably, with reference to figure 11, Figure 11 is the functional module signal of the first determining module 904 provided in an embodiment of the present invention
Figure.
First determining module 904, including：
First determining unit 1001, if the number for the connected region is in the fixed threshold scope pre-set
It is interior, it is determined that the bank note to be detected is normal；
Second determining unit 1002, if the number for the connected region exceedes the fixed threshold scope pre-set,
It is abnormal then to determine the bank note to be detected.
Specifically, the thickness data that the integrality of detection safety line is the sense channel according to where the safety line is sentenced
It is disconnected, generally, in thickness data on same bank note gold thread, more than the connected region number of average and less than average
The number that connected region is alternately present is fixed threshold scope, if exceeding the scope, then it is assumed that safety line is abnormal.
Specifically, when the number that the connected region number more than average and the connected region less than average are alternately present is more than
It is the passage containing safety line that this passage is thought during equal to 3.Namely it is alternately present and then thinks the detection more than or equal to 3 times
The thickness data of passage is the thickness data of safety line position.
The embodiment of the present invention calculates institute by obtaining effective thickness data corresponding to safety line region in bank note to be detected
State the average of effective thickness data；Compare the effective thickness data and the average size, acquisition be more than or equal to or
Less than or equal to the number of the connected region of the average；Root determines according to the number of the connected region with the rule pre-set
Whether the bank note to be detected is abnormal, so as to the complete of the position where fast and effectively positioning security line and safety line
Property, and working as in safety line has thickness abnormity (such as posting adhesive tape) to have no effect on its detection to abnormal thickness.
Embodiment five
With reference to figure 11, Figure 11 is a kind of high-level schematic functional block diagram of device for detecting bank note provided in an embodiment of the present invention.
Described device also includes：
3rd acquisition module 905, for obtaining effective thickness data corresponding to safety line region in bank note to be detected, and count
Before the average for calculating the effective thickness data, the thickness of all areas of the bank note to be detected is obtained by thickness transducer
Data；
4th acquisition module 906, for removing the ambient noise in the thickness data, obtain in the bank note to be detected
The effective thickness data of all areas；
Interception module 907, for the effective thickness data according to all areas in the bank note to be detected, treated described in interception
Detect effective thickness data corresponding to safety line region in bank note.
Specifically, examining Fig. 2, Fig. 2 is a kind of method schematic diagram for extracting banknote thickness data provided in an embodiment of the present invention.
The detection data of single passage when extracting thickness transducer crosses paper money one by one (such as Fig. 2 is by taking the 6th sensing data as an example).
Thickness transducer is in individual bank note by all data of rear acquisition as shown in figure 3, in figure 3, three coordinates divide
Not Wei thickness size, sensor number and banknote locations, the banknote locations namely length scale.In Fig. 3, it can be seen that each
The sensor of numbering has all corresponded to single line, the thickness data that this single line detects for the sensor, between adjacent both threads
The connecting line perpendicular to banknote locations coordinate line be not thickness data, only connecting line.
The thickness transducer that a row are set laterally side by side is provided with banknote tester, bank note is tested along F in such as Fig. 2 to entrance
Paper money device, thickness transducer detect to the thickness of bank note, wherein each thickness transducer is corresponding to produce a sense channel
Data.Because the width of single thickness transducer is wider than the width of bank note safety line, therefore the thickness data body of safety line
In a present sense channel.The thickness data of safety line from the thickness data in other regions of bank note be it is different, so as to
The thickness data of single passage is extracted one by one to detect safety line.
With reference to figure 4, Fig. 4 is a kind of schematic diagram for intercepting effective area data provided in an embodiment of the present invention.Effective coverage
Intercepted according to banknote image size.Because the width of bank note is certain, therefore in the thickness data of single sense channel
In, only a fraction is the thickness data of bank note, and the partial data is intercepted by bank note developed width size.Fig. 4 is
The thickness data of the single sense channel of extraction, and Fig. 5 is belonging to of being intercepted in all thickness datas of the single sense channel
The thickness data of bank note effective coverage.It can be seen that abscissa changes from Fig. 4 and Fig. 5, abscissa in Fig. 4 and Fig. 5
It is length, ordinate is thickness.
Embodiment six
With reference to figure 12, Figure 12 is a kind of high-level schematic functional block diagram of device for detecting bank note provided in an embodiment of the present invention.
Described device also includes：
Detection module 908, determined for root according to the number of the connected region and the rule pre-set described to be checked
Bank note is surveyed whether after exception, however, it is determined that the bank note to be detected is abnormal, then further to safety on the bank note to be detected
The thickness of line is detected；
Second determining module 909, for the thickness after contrasting detection and the thickness threshold value pre-set, determine described to be checked
Survey the abnormal information of bank note.
Specifically, the detection to safety line thickness abnormity is to pass through such a way：According to the thickness number due to safety line
According to having in a threshold value, such as Fig. 6, the data of safety line are not over 80, and if having pasted adhesive tape in safety line,
So the data of safety line may reach 160 or more, and the thickness abnormity of safety line is thought if beyond the threshold value.
The technical principle of the embodiment of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain this
The principle of inventive embodiments, and the limitation to protection domain of the embodiment of the present invention can not be construed in any way.Based on herein
Explanation, those skilled in the art, which would not require any inventive effort, can associate the other specific of the embodiment of the present invention
Embodiment, these modes are fallen within the protection domain of the embodiment of the present invention.
Claims (8)
- A kind of 1. method for detecting bank note, it is characterised in that methods described includes：Effective thickness data corresponding to safety line region in bank note to be detected are obtained, and calculate the equal of the effective thickness data Value；Compare the size of the effective thickness data and the average, acquisition is more than or equal to or the company less than or equal to the average The number in logical region, wherein, the connected region is more than or equal to or continuous less than or equal to the average by N number of thickness data Point is formed, and N is the positive integer being not zero；Determine whether the bank note to be detected is abnormal according to the number of the connected region and the rule pre-set.
- 2. according to the method for claim 1, it is characterised in that the number according to the connected region and pre-set Rule determine whether the bank note to be detected abnormal, including：If the number of the connected region is in the range of the fixed threshold pre-set, it is determined that the bank note to be detected is just Normal；If the number of the connected region exceedes the fixed threshold scope pre-set, it is determined that the bank note to be detected is different Often.
- 3. according to the method described in claim 1 to 2 any one, it is characterised in that described to obtain safety in bank note to be detected Effective thickness data corresponding to line region, and before calculating the average of the effective thickness data, in addition to：The thickness data of all areas of the bank note to be detected is obtained by thickness transducer；The ambient noise in the thickness data is removed, obtains the effective thickness data of all areas in the bank note to be detected；According to the effective thickness data of all areas in the bank note to be detected, safety line region in the bank note to be detected is intercepted Corresponding effective thickness data.
- 4. according to the method described in claim 1 to 2 any one, it is characterised in that according to the connected region Number and the rule that pre-sets determine the bank note to be detected whether after exception, in addition to：If it is determined that the bank note to be detected is abnormal, then further the thickness of safety line on the bank note to be detected is examined Survey；Thickness after contrasting detection and the thickness threshold value pre-set, determine the abnormal information of the bank note to be detected.
- 5. a kind of device for detecting bank note, it is characterised in that described device includes：First acquisition module, for obtaining effective thickness data corresponding to safety line region in bank note to be detected, and described in calculating The average of effective thickness data；Comparison module, for the effective thickness data and the size of the average；Second acquisition module, for obtaining the number for the connected region being more than or equal to or less than or equal to the average, wherein, institute Connected region described in the second acquisition module is stated by N number of thickness data to be more than or equal to or the continuity point less than or equal to the average Formed, N is the positive integer being not zero；First determining module, the bank note to be detected is determined for the number according to the connected region and the rule pre-set It is whether abnormal.
- 6. device according to claim 5, it is characterised in that first determining module, including：First determining unit, if the number for the connected region is in the range of the fixed threshold pre-set, it is determined that The bank note to be detected is normal；Second determining unit, if the number for the connected region exceedes the fixed threshold scope pre-set, it is determined that institute It is abnormal to state bank note to be detected.
- 7. according to the device described in claim 5 to 6 any one, it is characterised in that described device also includes：3rd acquisition module, for obtaining effective thickness data corresponding to safety line region in bank note to be detected, and described in calculating Before the average of effective thickness data, the thickness data of all areas of the bank note to be detected is obtained by thickness transducer；4th acquisition module, for removing the ambient noise in the thickness data, obtain all areas in the bank note to be detected The effective thickness data in domain；Interception module, for the effective thickness data according to all areas in the bank note to be detected, intercept the paper to be detected Effective thickness data corresponding to safety line region in coin.
- 8. according to the device described in claim 5 to 6 any one, it is characterised in that described device also includes：Detection module, whether the bank note to be detected is determined for the number according to the connected region and the rule pre-set After exception, however, it is determined that the bank note to be detected is abnormal, then further the thickness of safety line on the bank note to be detected is entered Row detection；Second determining module, for the thickness after contrasting detection and the thickness threshold value pre-set, determine the bank note to be detected Abnormal information.
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| CN106023412B (en) * | 2016-05-23 | 2019-06-04 | 威海华菱光电股份有限公司 | The detection method and detection system of film thickness exception |
| CN106127930B (en) * | 2016-06-17 | 2019-02-01 | 深圳怡化电脑股份有限公司 | A kind of method and system detecting banknote security line integrality |
| CN107978062B (en) * | 2016-10-25 | 2021-01-01 | 深圳怡化电脑股份有限公司 | Method and device for detecting adhesive tape money |
| CN107978061B (en) * | 2016-10-25 | 2020-02-07 | 深圳怡化电脑股份有限公司 | Banknote thickness data extraction method and device |
| CN108022362B (en) * | 2016-11-02 | 2020-03-27 | 深圳怡化电脑股份有限公司 | Method and device for detecting defect of paper money |
| CN106875540B (en) * | 2017-02-17 | 2020-04-07 | 深圳怡化电脑股份有限公司 | Paper money thickness abnormity detection method and device |
| CN108663004B (en) * | 2017-03-29 | 2020-04-28 | 深圳怡化电脑股份有限公司 | Method and device for detecting abnormal thickness of paper money |
| CN108932788B (en) * | 2017-05-22 | 2020-10-20 | 深圳怡化电脑股份有限公司 | Method, device and equipment for detecting abnormal thickness grade of paper money |
| CN108230533A (en) * | 2017-12-26 | 2018-06-29 | 湖南丰汇银佳科技股份有限公司 | Composite type safety line anti-counterfeiting detecting device and method |
| CN109737859B (en) * | 2018-12-26 | 2021-01-12 | 广州国瀚计算机通讯科技有限公司 | Method and device for detecting sticking foreign matter on sheet medium |
| CN113160480A (en) * | 2020-01-21 | 2021-07-23 | 深圳怡化电脑股份有限公司 | Method and device for detecting thickness of bank note, computer equipment and storage medium |
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| JPH1185942A (en) * | 1997-09-05 | 1999-03-30 | Toyo Commun Equip Co Ltd | Cash counter |
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| JP4387176B2 (en) * | 2003-12-12 | 2009-12-16 | 日立オムロンターミナルソリューションズ株式会社 | Banknote discrimination |
| JP2009129390A (en) * | 2007-11-28 | 2009-06-11 | Oki Electric Ind Co Ltd | Medium discrimination device |
| CN102176262B (en) * | 2011-01-17 | 2013-01-02 | 广州广电运通金融电子股份有限公司 | Thickness detecting method and device for slice medium |
| CN102903172B (en) * | 2012-09-26 | 2015-04-01 | 深圳怡化电脑股份有限公司 | Method and device for detecting overlapping and connecting of notes |
| CN104408819B (en) * | 2014-12-05 | 2017-06-13 | 深圳怡化电脑股份有限公司 | A kind of detection method of bank note adhesive tape |
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