CN108492443B - Method, device and equipment for detecting adhesive tape on paper money and storage medium - Google Patents
Method, device and equipment for detecting adhesive tape on paper money and storage medium Download PDFInfo
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- CN108492443B CN108492443B CN201810242011.9A CN201810242011A CN108492443B CN 108492443 B CN108492443 B CN 108492443B CN 201810242011 A CN201810242011 A CN 201810242011A CN 108492443 B CN108492443 B CN 108492443B
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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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- 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
- G07D7/181—Testing mechanical properties or condition, e.g. wear or tear
- G07D7/187—Detecting defacement or contamination, e.g. dirt
Abstract
The embodiment of the invention discloses a method, a device, equipment and a storage medium for detecting adhesive tapes on paper money, wherein the method comprises the following steps: when the paper money passes, acquiring paper money thickness detection data of the paper money to be detected according to detection points of a preset detection number through thickness sensors of a preset number of channels; dividing the detection point of each channel into detection segments with preset segment numbers; taking the average value of the banknote thickness detection data in the detection section as the banknote section thickness data of the detection section; sequencing the paper money subsection thickness data, and taking the average value of the paper money subsection thickness data positioned in the middle of sequencing as a paper money thickness reference value; and when the banknote subsection thickness data which is larger than the preset threshold value of the banknote thickness reference value meets the preset judgment condition, determining that the adhesive tape exists on the banknote to be detected. The technical scheme of the embodiment of the invention can realize the effects of improving the detection efficiency and the detection accuracy.
Description
Technical Field
The embodiment of the invention relates to a banknote thickness detection technology, in particular to a method, a device, equipment and a storage medium for detecting adhesive tapes on banknotes.
Background
Adhesive tapes or other foreign matters can be adhered to the surfaces of paper money in circulation due to various reasons, and the paper money adhered with the adhesive tapes or the foreign matters can influence the normal judgment of the paper money in the process of counting and detecting the paper money. In addition, some spliced banknotes realized by adhesive tapes are available in the market, and the counterfeit banknotes also need to be detected by financial machines and recovered or rejected by financial institutions.
In the existing paper money adhesive tape detection, the thickness data of paper money acquired by a thickness sensor is generally compared with the reference thickness of the paper money one by one, and when the thickness data of the paper money exceeds the reference thickness of the paper money and reaches a threshold value, the adhesive tape on the paper money is judged. However, the processing efficiency of the banknote thickness data one by one is low, the stability of single data is poor, and misjudgment is easy to occur.
Disclosure of Invention
The embodiment of the invention provides a method, a device and equipment for detecting adhesive tapes on paper money and a storage medium, so that the detection efficiency and the detection accuracy are improved.
In a first aspect, an embodiment of the present invention provides a method for detecting an adhesive tape on a banknote, including:
when the paper money passes, acquiring paper money thickness detection data of the paper money to be detected according to detection points of a preset detection number through thickness sensors of a preset number of channels;
dividing the detection point of each channel into detection segments with preset segment numbers;
taking the average value of the banknote thickness detection data in the detection section as the banknote section thickness data of the detection section;
sequencing the paper money subsection thickness data, and taking the average value of the paper money subsection thickness data positioned in the middle of sequencing as a paper money thickness reference value;
and when the banknote subsection thickness data which is larger than the preset threshold value of the banknote thickness reference value meets the preset judgment condition, determining that the adhesive tape exists on the banknote to be detected.
In a second aspect, an embodiment of the present invention further provides a device for detecting an adhesive tape on a banknote, including:
the banknote thickness acquisition module is used for acquiring banknote thickness detection data of the banknotes to be detected through the thickness sensors of the preset number channels according to the detection points of the preset detection number when the banknotes pass;
the detection segment dividing module is used for dividing the detection points of each channel into detection segments with preset segment numbers;
the segment thickness determining module is used for taking the average value of the banknote thickness detection data in the detection section as the banknote segment thickness data of the detection section;
the thickness reference value determining module is used for sequencing the banknote section thickness data and taking the average value of the banknote section thickness data positioned in the middle of sequencing as a banknote thickness reference value;
and the adhesive tape determining module is used for determining that the adhesive tape exists on the paper money to be detected when the paper money subsection thickness data which is larger than the preset threshold value of the paper money thickness reference value accords with the preset judgment condition.
In a third aspect, an embodiment of the present invention further provides an apparatus, where the apparatus includes:
one or more processors;
storage means for storing one or more programs;
the thickness sensors are used for acquiring the thickness detection data of the paper money;
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for detecting the tape on the paper money provided by any embodiment of the invention.
In a fourth aspect, embodiments of the present invention further provide a storage medium containing a computer program, which when executed by a computer processor is configured to perform the method for detecting adhesive tape on paper money provided in any of the embodiments of the present invention.
The invention determines the sectional thickness data of the paper money according to the detection section by the thickness detection data of the paper money, and determines the adhesive tape existing on the paper money according to the sectional thickness data of the paper money and the reference value of the thickness of the paper money, thereby solving the problems of low efficiency and low correctness caused by processing the thickness detection data of the paper money one by one, and realizing the effects of improving the detection efficiency and the detection accuracy.
Drawings
Fig. 1 is a flowchart of a method for detecting an adhesive tape on a banknote according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a method for detecting tape on a banknote according to a second embodiment of the present invention;
fig. 3 is a flowchart of a method for detecting an adhesive tape on a banknote according to a third embodiment of the present invention;
FIG. 4 is a flowchart of a method for detecting tape on a banknote according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for detecting adhesive tape on paper money according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of an apparatus in the sixth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a method for detecting an adhesive tape on a banknote according to an embodiment of the present invention, which is applicable to a financial device for detecting whether an adhesive tape is present on a banknote during a banknote counting and detecting process, for example, detecting whether an adhesive tape is present on a banknote during the banknote counting by using a banknote counter. The method can be executed by a device for detecting adhesive tapes on the paper money, the device can be composed of software and/or hardware and can be configured in a financial machine tool, and the method for detecting the adhesive tapes on the paper money specifically comprises the following steps:
and 110, when the paper money passes, acquiring paper money thickness detection data of the paper money to be detected according to the detection points of the preset detection number through the thickness sensors of the preset number channels.
The thickness sensor can be a contact thickness sensor or a non-contact thickness sensor. The thickness sensors are arranged on the same straight line, the straight line is perpendicular to the passing direction of the paper money to be detected, and the number of the channels can be 10. A plurality of detection points can be set in each channel, for example, the number of the detection points can be 120, and when the paper money to be detected passes through, the thickness sensor in each channel acquires 120 paper money thickness detection data.
And step 120, dividing the detection points of each channel into detection sections with preset number of sections.
The detection points of each channel can be divided into a plurality of detection sections, the number of the detection points contained in each detection section can be preset, and the operation of dividing the detection sections can be preset before the detection data of the thickness of the paper money to be detected is acquired. Illustratively, 120 detection points are provided for each channel, and each 10 adjacent detection points are divided into 1 detection segment, so that each channel is provided with 12 detection segments.
And step 130, taking the average value of the banknote thickness detection data in the detection section as the banknote section thickness data of the detection section.
The average value of the paper money thickness detection data is used as the paper money subsection thickness data of the detection section, so that the paper money thickness of the detection section can be reflected, and the number of the paper money thickness data needing to be contrasted is reduced.
And step 140, sequencing the paper money subsection thickness data, and taking the average value of the paper money subsection thickness data positioned in the middle of sequencing as a paper money thickness reference value.
The number of the banknote segment thickness data at the middle position of the sorting may be a preset ratio to the number of all the banknote segment thickness data, where the preset ratio may be 10% to 60%, for example, an average value of the banknote segment thickness data at the middle position of the sorting, which accounts for 30% of all the banknote segment thickness data, is taken as the banknote thickness reference value. Because there is a thickness difference between different printing plate numbers and different new and old paper money, the reference value of the paper money thickness is used as the comparison standard of the thickness of the paper money to be measured.
And 150, when the banknote subsection thickness data which is larger than the preset threshold value of the banknote thickness reference value meets the preset judgment condition, determining that the adhesive tape exists on the banknote to be detected.
The method comprises the steps of traversing all the paper money sectional thickness data, judging whether the difference between the paper money sectional thickness data and a paper money thickness reference value is larger than a preset threshold value or not, determining a detection section corresponding to the paper money sectional thickness data larger than the paper money thickness reference value preset threshold value as a suspected abnormality detection section, comparing the position relation of the suspected abnormality detection section with a preset judgment condition, if so, determining that an adhesive tape exists on the paper money to be detected, and determining the position of the adhesive tape on the paper money to be detected.
According to the technical scheme, the sectional thickness data of the paper money is determined according to the detection section through the thickness detection data of the paper money, the adhesive tape existing on the paper money is determined according to the sectional thickness data of the paper money and the reference value of the thickness of the paper money, the problems that the detection data of the paper money is processed one by one, the efficiency is low, and the accuracy is low are solved, so that the detection efficiency is improved, and the detection accuracy is improved.
Example two
Fig. 2 is a flowchart of a method for detecting an adhesive tape on a banknote according to a second embodiment of the present invention, in which the technical solution of the present embodiment is further detailed on the basis of the above technical solution, and the method for detecting an adhesive tape on a banknote specifically includes:
and step 210, when the paper money passes, acquiring paper money thickness detection data of the paper money to be detected according to the detection points of the preset detection number through the thickness sensors of the preset number channels.
And step 220, dividing the detection points of each channel into detection sections with preset number of sections.
And step 230, taking the average value of the banknote thickness detection data in the detection section as the banknote section thickness data of the detection section.
And 240, removing the banknote subsection thickness data smaller than the preset subsection thickness threshold value.
The method comprises the steps that the to-be-detected paper money possibly passes through the to-be-detected paper money in an inclined mode, if the paper money subsection thickness data are smaller than a preset subsection thickness threshold value, the fact that the paper money subsection thickness data correspond to a background area possibly located at the inclined position of the to-be-detected paper money is shown, the paper money subsection thickness data smaller than the preset subsection thickness threshold value are removed, and accuracy of a paper money thickness reference value is improved. As an example, the preset segment thickness threshold may be 30.
And step 250, sequencing the remaining paper money segment thickness data.
And sorting the remaining banknote subsection thickness data after the banknote subsection thickness data smaller than the preset subsection thickness threshold value are removed.
And step 260, taking the average value of the banknote section thickness data positioned in the middle of the sequencing as a banknote thickness reference value.
And 270, when the banknote subsection thickness data which is larger than the preset threshold value of the banknote thickness reference value meets the preset judgment condition, determining that the adhesive tape exists on the banknote to be detected.
According to the technical scheme, the accuracy of the banknote thickness reference value is improved by removing the banknote subsection thickness data corresponding to the background area, and therefore the accuracy of the adhesive tape detection is improved.
EXAMPLE III
Fig. 3 is a flowchart of a method for detecting an adhesive tape on a banknote according to a third embodiment of the present invention, in which the technical solution of the present embodiment is further detailed on the basis of the above technical solution, and the method for detecting an adhesive tape on a banknote specifically includes:
and 310, when the paper money passes, acquiring the paper money thickness detection data of the paper money to be detected according to the detection points of the preset detection number through the thickness sensors of the preset number channels.
And step 320, dividing the detection points of each channel into detection sections with preset number of sections.
And step 330, determining the starting position and the ending position of the banknote thickness detection data corresponding to each channel according to the banknote thickness detection data corresponding to each channel, and using the starting position and the ending position as thickness detection reference information.
The finding of the starting position and the ending position of each banknote thickness detection data can be realized by adopting the following modes: setting a threshold, comparing each banknote thickness detection data with the threshold, marking the thickness data which is larger than the threshold and appears for the first time in the banknote thickness detection data as a starting position, and marking the thickness data which is smaller than the threshold and appears for the last time in the banknote thickness detection data as an ending position, wherein in the example, the threshold is the thickness data, and the value is 40.
And 340, removing the banknote thickness detection data corresponding to the background area according to the thickness detection reference information.
After determining the starting position and the ending position of the banknote thickness detection data of the channel, determining that the banknote thickness detection data before the starting position and after the ending position correspond to background areas except for the banknote to be detected.
And step 350, taking the average value of the banknote thickness detection data in the detection section as the banknote section thickness data of the detection section.
And taking the average value of the remaining banknote thickness detection data in the detection section after the banknote thickness detection data corresponding to the background area are removed as the banknote section thickness data of the detection section. Therefore, the banknote section thickness data can avoid the influence of the banknote thickness detection data corresponding to the background area, and the banknote thickness reference value determined according to the banknote section thickness data can better reflect the thickness of the to-be-detected banknote.
And 360, sequencing the paper money subsection thickness data, and taking the average value of the paper money subsection thickness data positioned in the middle of sequencing as a paper money thickness reference value.
And step 370, when the banknote subsection thickness data which is larger than the preset threshold value of the banknote thickness reference value meets the preset judgment condition, determining that the adhesive tape exists on the banknote to be detected.
According to the technical scheme, the banknote thickness detection data corresponding to the background area are removed through the starting and stopping positions of the banknote thickness detection data of each channel, the accuracy of the banknote thickness reference value is improved, and therefore the accuracy of adhesive tape detection is improved.
Example four
Fig. 4 is a flowchart of a method for detecting an adhesive tape on a banknote according to a fourth embodiment of the present invention, in which the technical solution of the present embodiment is further detailed on the basis of the above technical solution, and the method for detecting an adhesive tape on a banknote specifically includes:
and step 410, when the paper money passes, acquiring the paper money thickness detection data of the paper money to be detected according to the detection points of the preset detection number through the thickness sensors of the preset number channels.
And step 420, dividing the detection point of each channel into detection segments with preset segment numbers.
And step 430, taking the average value of the banknote thickness detection data in the detection section as the banknote section thickness data of the detection section.
And step 440, sequencing the paper money subsection thickness data, and taking the average value of the paper money subsection thickness data positioned in the middle of sequencing as a paper money thickness reference value.
And 450, acquiring an image of the paper money to be detected.
The image of the paper money to be detected is acquired through the image sensor, and the operation of acquiring the image of the paper money to be detected can be acquired before the paper money to be detected passes through the thickness sensor.
And step 460, determining the starting position and the ending position of the banknote thickness detection data corresponding to each channel according to the banknote thickness detection data corresponding to each channel, and using the starting position and the ending position as thickness reference information.
The method for finding out the starting position and the ending position of the banknote thickness detection data of each channel can be realized by adopting the following modes: setting a threshold, comparing each banknote thickness detection data with the threshold, marking the thickness data which is larger than the threshold and appears for the first time in the banknote thickness detection data as a starting position, and marking the thickness data which is smaller than the threshold and appears for the last time in the banknote thickness detection data as an ending position, wherein in the example, the threshold is the thickness data, and the value is 40.
And step 470, determining the mapping relationship between the banknote segment thickness data and the image data information according to the thickness reference information and the image data information of the image and the corresponding relationship between the banknote thickness detection data and the banknote segment thickness data.
Acquiring data information of an image of the paper money, determining a data mapping relation between the data information of the image and the paper money thickness detection data according to the thickness reference information and the image data information of the image, and expressing the ratio of the number of data sampling points of the image sensor and the thickness sensor in a unit distance; and determining the mapping relation between the banknote section thickness data and the data information of the image by combining the corresponding relation between the banknote thickness detection data and the banknote section thickness data.
The data information of the image is the image of the banknote collected by the image sensor when the banknote passes through the image sensor, which is usually a reflectance image with different wavelengths, such as an ultraviolet reflectance image, a visible light reflectance image, or an infrared reflectance image, and information such as a reflectance curve of the banknote, image coordinates of four corner points of the banknote, a length of the banknote in a long side direction, a length of the banknote in a short side direction (i.e., an image height), and an image resolution can be obtained from the image.
And 480, removing the paper money subsection thickness data corresponding to the preset image area according to the mapping relation.
The preset image area is an area with a thicker thickness of the paper money, and the area needs to be removed, for example, the hair and the collar of the hair-position figure in the fifth set of rmb are thicker, and the corresponding paper money segment thickness data is removed by combining the mapping relation.
And 490, determining that the adhesive tape exists on the paper money to be detected when the paper money subsection thickness data larger than the preset threshold value of the paper money thickness reference value meets the preset judgment condition.
Optionally, when the sectional thickness data of the banknote greater than the preset threshold of the reference thickness value of the banknote meets the preset judgment condition, determining that the adhesive tape exists on the banknote to be detected includes:
when the sectional thickness data of the continuous first number of paper money is larger than the preset threshold value of the paper money thickness reference value in the same channel, determining that the adhesive tape exists on the paper money to be detected; the first number may be predetermined, for example, the first number may be 3 or 4.
Or when the detection sections located at the same position in the channel are located, the sectional thickness data of the continuous second number of the paper money is larger than the preset threshold value of the reference value of the thickness of the paper money, and the fact that the adhesive tape exists on the paper money to be detected is determined. The second number may be predetermined, for example, the second number may be 3 or 4. For example, the banknote thickness data of the detection section is greater than the preset banknote thickness reference value threshold, and the banknote thickness data of the detection section at the same position in the adjacent channels on two sides of the detection section is also greater than the preset banknote thickness reference value threshold, so that the adhesive tape on the banknote to be detected is determined.
According to the technical scheme, the influence of the thick area of the thickness of the paper money on the detection of the adhesive tape is reduced through the mapping relation between the image information and the thickness information of the paper money, and the detection accuracy is improved.
EXAMPLE five
Fig. 5 is a schematic structural diagram of a device for detecting an adhesive tape on a banknote according to a fifth embodiment of the present invention, where the device may be configured in a financial machine, and specifically includes:
the banknote thickness acquisition module 501 is configured to acquire banknote thickness detection data of the banknotes to be detected according to detection points of a preset detection number through the thickness sensors of the preset number of channels when the banknotes pass;
a detection segment dividing module 502 for dividing the detection points of each channel into detection segments of a preset number of segments;
the segment thickness determining module 503 is configured to use an average value of the banknote thickness detection data in the detection segment as the banknote segment thickness data of the detection segment;
the thickness reference value determining module 504 is configured to sort the banknote segment thickness data, and use an average value of the banknote segment thickness data located in a middle position of the sorting as a banknote thickness reference value;
and the adhesive tape determining module 505 is configured to determine that an adhesive tape exists on the banknote to be detected when the banknote segmentation thickness data larger than the banknote thickness reference value preset threshold meets a preset determination condition.
According to the technical scheme, the sectional thickness data of the paper money is determined according to the detection section through the thickness detection data of the paper money, the adhesive tape existing on the paper money is determined according to the sectional thickness data of the paper money and the reference value of the thickness of the paper money, the problems that the detection data of the paper money is processed one by one, the efficiency is low, and the accuracy is low are solved, so that the detection efficiency is improved, and the detection accuracy is improved.
Optionally, the thickness reference value determining module 504 is specifically configured to:
removing the banknote subsection thickness data smaller than a preset subsection thickness threshold;
sequencing the remaining paper money subsection thickness data;
and taking the average value of the banknote section thickness data positioned in the middle of the sequencing as a banknote thickness reference value.
Optionally, the device for detecting the adhesive tape on the paper money further comprises:
the thickness detection reference information determining module is used for determining the starting position and the ending position of the banknote thickness detection data corresponding to each channel according to the banknote thickness detection data corresponding to each channel before the average value of the banknote thickness detection data in the detection section is used as the banknote subsection thickness data of the detection section;
and the thickness detection data removing module is used for removing the banknote thickness detection data corresponding to the background area according to the thickness detection reference information.
Optionally, the tape determining module 505 is specifically configured to:
when the sectional thickness data of the continuous first number of paper money is larger than the preset threshold value of the paper money thickness reference value in the same channel, determining that the adhesive tape exists on the paper money to be detected;
or when the detection sections located at the same position in the channel are located, the sectional thickness data of the continuous second number of the paper money is larger than the preset threshold value of the reference value of the thickness of the paper money, and the fact that the adhesive tape exists on the paper money to be detected is determined.
Optionally, the device for detecting the adhesive tape on the paper money further comprises:
the banknote image acquisition module is used for acquiring an image of the banknote to be detected before determining that the adhesive tape exists on the banknote to be detected when the banknote subsection thickness data which is larger than the preset threshold value of the banknote thickness reference value meets the preset judgment condition;
the thickness reference information determining module is used for determining the starting position and the ending position of the banknote thickness detection data corresponding to each channel according to the banknote thickness detection data corresponding to each channel, and the starting position and the ending position serve as thickness reference information;
the mapping relation determining module is used for determining the mapping relation between the banknote section thickness data and the data information of the image according to the thickness reference information, the data information of the image and the corresponding relation between the banknote thickness detection data and the banknote section thickness data;
and the sectional thickness data removing module is used for removing the paper money sectional thickness data corresponding to the preset image area according to the mapping relation.
The product can execute the method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE six
Fig. 6 is a schematic structural diagram of an apparatus according to a sixth embodiment of the present invention, as shown in fig. 6, the apparatus includes a processor 601, a memory 602, an input device 603, an output device 604, a thickness sensor 605, and an image sensor 606; the number of processors 601 in the device may be one or more, and one processor 601 is taken as an example in fig. 6; the processor 601, the memory 602, the input device 603, the output device 604, the thickness sensor 605 and the image sensor 606 in the apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 6.
The memory 602 is used as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the method for detecting tape on paper money according to the embodiments of the present invention (for example, the paper money thickness obtaining module 501, the detection segment dividing module 502, the segment thickness determining module 503, the thickness reference value determining module 504, and the tape determining module 505 in the device for detecting tape on paper money). The processor 601 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory 602, that is, the above-mentioned method for detecting adhesive tapes on paper money is realized.
The memory 602 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 602 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 602 may further include memory located remotely from the processor 601, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 603 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the apparatus. The output device 604 may include a display device such as a display screen. The thickness sensor 605 is configured to obtain banknote thickness detection data of the to-be-detected banknote. And the image sensor 606 is used for acquiring an image of the paper money to be detected.
EXAMPLE seven
Embodiment 7 of the present invention also provides a storage medium containing a computer program which, when executed by a computer processor, is configured to perform a method of detecting tape on a banknote, the method including:
when the paper money passes, acquiring paper money thickness detection data of the paper money to be detected according to detection points of a preset detection number through thickness sensors of a preset number of channels;
dividing the detection point of each channel into detection segments with preset segment numbers;
taking the average value of the banknote thickness detection data in the detection section as the banknote section thickness data of the detection section;
sequencing the paper money subsection thickness data, and taking the average value of the paper money subsection thickness data positioned in the middle of sequencing as a paper money thickness reference value;
and when the banknote subsection thickness data which is larger than the preset threshold value of the banknote thickness reference value meets the preset judgment condition, determining that the adhesive tape exists on the banknote to be detected.
Of course, the storage medium containing the computer program provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the method for detecting tape on paper money provided by any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A method for detecting adhesive tapes on paper money is characterized by comprising the following steps:
when the paper money passes, acquiring paper money thickness detection data of the paper money to be detected according to detection points of a preset detection number through thickness sensors of a preset number of channels;
dividing the detection point of each channel into detection segments with preset segment numbers;
taking the average value of the banknote thickness detection data in the detection section as the banknote section thickness data of the detection section;
sequencing the paper money subsection thickness data, and taking the average value of the paper money subsection thickness data positioned in the middle of sequencing as a paper money thickness reference value;
when being greater than the preset threshold value of paper money thickness reference value the paper money segmentation thickness data accord with and predetermine the judgement condition, confirm to exist the sticky tape on the paper money that awaits measuring, when being greater than the preset threshold value of paper money thickness reference value the paper money segmentation thickness data accord with and predetermine the judgement condition, confirm to exist the sticky tape on the paper money that awaits measuring includes:
when the sectional thickness data of the paper money of the detection sections of the continuous first number are all larger than the preset threshold value of the reference value of the thickness of the paper money in the same channel, determining that the adhesive tape exists on the paper money to be detected;
or when the detection sections which are positioned at the same positions in different channels are positioned, the banknote subsection thickness data of the detection sections at the same positions of the channels of the second number are all larger than the preset threshold value of the banknote thickness reference value, and the adhesive tape is determined to exist on the to-be-detected banknotes.
2. The method for detecting adhesive tape on paper money according to claim 1, wherein the step of sorting the paper money segment thickness data and using the average value of the paper money segment thickness data at the middle position of the sorting as a reference value of the paper money thickness comprises:
rejecting the banknote subsection thickness data smaller than a preset subsection thickness threshold;
sequencing the remaining banknote segment thickness data;
and taking the average value of the banknote section thickness data positioned in the middle of the sequencing as the banknote thickness reference value.
3. The method of claim 1, further comprising, before the step of averaging the banknote thickness detection data in the detection section as the banknote segment thickness data in the detection section:
determining a starting position and an ending position of the banknote thickness detection data corresponding to each channel according to the banknote thickness detection data corresponding to each channel, and using the starting position and the ending position as thickness detection reference information;
and removing the banknote thickness detection data corresponding to the background area according to the thickness detection reference information.
4. The method for detecting adhesive tape on paper money according to claim 1, wherein before determining that the adhesive tape exists on the paper money to be detected when the paper money segment thickness data greater than the paper money thickness reference value preset threshold value meets a preset determination condition, the method further comprises:
acquiring an image of the paper money to be detected;
determining a starting position and an ending position of the banknote thickness detection data corresponding to each channel according to the banknote thickness detection data corresponding to each channel, and using the starting position and the ending position as thickness reference information;
determining a mapping relation between the banknote section thickness data and the data information of the image according to the thickness reference information, the data information of the image and the corresponding relation between the banknote thickness detection data and the banknote section thickness data;
and rejecting the paper money subsection thickness data corresponding to a preset image area according to the mapping relation.
5. A detection device for adhesive tapes on paper money is characterized by comprising:
the banknote thickness acquisition module is used for acquiring banknote thickness detection data of the banknotes to be detected through the thickness sensors of the preset number channels according to the detection points of the preset detection number when the banknotes pass;
the detection segment dividing module is used for dividing the detection points of each channel into detection segments with preset segment numbers;
the segment thickness determining module is used for taking the average value of the banknote thickness detection data in the detection section as the banknote segment thickness data of the detection section;
the thickness reference value determining module is used for sequencing the banknote section thickness data and taking the average value of the banknote section thickness data positioned in the middle of sequencing as a banknote thickness reference value;
the adhesive tape determining module is used for determining that the adhesive tapes exist on the paper money to be detected when the paper money subsection thickness data of the detection sections of the first number are all larger than the preset threshold value of the paper money thickness reference value in the same channel; or when the detection sections which are positioned at the same positions in different channels are positioned, the banknote subsection thickness data of the detection sections at the same positions of the channels of the second number are all larger than the preset threshold value of the banknote thickness reference value, and the adhesive tape is determined to exist on the to-be-detected banknotes.
6. The apparatus of claim 5, wherein the thickness reference value determining module is configured to:
rejecting the banknote subsection thickness data smaller than a preset subsection thickness threshold;
sequencing the remaining banknote segment thickness data;
taking the average value of the banknote section thickness data positioned in the middle of the sequencing as the banknote thickness reference value;
the detection device of sticky tape on paper money still includes:
the thickness detection reference information determining module is used for determining the starting position and the ending position of the banknote thickness detection data corresponding to each channel according to the banknote thickness detection data corresponding to each channel before the average value of the banknote thickness detection data in the detection section is used as the banknote subsection thickness data of the detection section, and the starting position and the ending position are used as thickness detection reference information;
and the thickness detection data removing module is used for removing the banknote thickness detection data corresponding to the background area according to the thickness detection reference information.
7. The apparatus for detecting adhesive tape on paper money according to claim 5,
the detection device of sticky tape on paper money still includes:
the banknote image acquisition module is used for acquiring an image of the banknote to be detected before the banknote subsection thickness data which is larger than the preset threshold value of the banknote thickness reference value meets the preset judgment condition and the adhesive tape is determined to exist on the banknote to be detected;
the thickness reference information determining module is used for determining the starting position and the ending position of the banknote thickness detection data corresponding to each channel according to the banknote thickness detection data corresponding to each channel, and the starting position and the ending position serve as thickness reference information;
the mapping relation determining module is used for determining the mapping relation between the banknote section thickness data and the data information of the image according to the thickness reference information, the data information of the image and the corresponding relation between the banknote thickness detection data and the banknote section thickness data;
and the sectional thickness data removing module is used for removing the sectional thickness data of the paper money corresponding to the preset image area according to the mapping relation.
8. An apparatus, characterized in that the apparatus comprises:
one or more processors;
storage means for storing one or more programs;
the thickness sensors are used for acquiring the thickness detection data of the paper money;
when executed by the one or more processors, cause the one or more processors to implement the method of tape-on-note detection of any of claims 1-4.
9. A storage medium containing a computer program, wherein the computer program, when executed by a computer processor, is adapted to perform the method of tape-on-banknote detection of any one of claims 1-4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810242011.9A CN108492443B (en) | 2018-03-22 | 2018-03-22 | Method, device and equipment for detecting adhesive tape on paper money and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810242011.9A CN108492443B (en) | 2018-03-22 | 2018-03-22 | Method, device and equipment for detecting adhesive tape on paper money and storage medium |
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| CN108492443B true CN108492443B (en) | 2020-09-15 |
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| CN109191661B (en) * | 2018-09-14 | 2021-04-23 | 广州广电运通金融电子股份有限公司 | Foreign matter detection method and device and computer readable storage medium |
| 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 |
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| EP0080309A3 (en) * | 1981-11-16 | 1984-02-29 | De La Rue Systems Limited | Apparatus for analysing sheets |
| 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 |
| CN106971450B (en) * | 2017-03-28 | 2019-12-06 | 深圳怡化电脑股份有限公司 | method and device for identifying abnormal thickness of paper money |
| CN107507330B (en) * | 2017-08-17 | 2019-08-23 | 深圳怡化电脑股份有限公司 | Detection method, detection device and the terminal device of banknote thickness abnormity |
| CN107481392B (en) * | 2017-09-14 | 2019-08-27 | 深圳怡化电脑股份有限公司 | The detection method of bank note edge adhesive tape |
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