CN113888797A - Paper money card detection method and financial self-service equipment - Google Patents
Paper money card detection method and financial self-service equipment Download PDFInfo
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- CN113888797A CN113888797A CN202111487070.0A CN202111487070A CN113888797A CN 113888797 A CN113888797 A CN 113888797A CN 202111487070 A CN202111487070 A CN 202111487070A CN 113888797 A CN113888797 A CN 113888797A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
- G07D11/20—Controlling or monitoring the operation of devices; Data handling
- G07D11/22—Means for sensing or detection
- G07D11/235—Means for sensing or detection for monitoring or indicating operating conditions; for detecting malfunctions
- G07D11/237—Means for sensing or detection for monitoring or indicating operating conditions; for detecting malfunctions for detecting transport malfunctions, e.g. jams or misfeeds
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F19/00—Complete banking systems; Coded card-freed arrangements adapted for dispensing or receiving monies or the like and posting such transactions to existing accounts, e.g. automatic teller machines
- G07F19/20—Automatic teller machines [ATMs]
- G07F19/209—Monitoring, auditing or diagnose of functioning of ATMs
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Abstract
The invention discloses a paper money clamping detection method and financial self-service equipment, and belongs to the technical field of financial self-service equipment. Assuming that the first detection sensor does not generate a banknote jam; when the difference between the time when the paper money passes through the current detection sensor and the time when the paper money passes through the last detection sensor of the current detection sensor is larger than a first preset threshold value, indicating that the paper money is blocked and carrying out error reporting; assuming that no paper money is jammed when a first piece of paper money after the initialization of the machine core passes through the paper money conveying channel and the plurality of detection sensors; detecting a first time distance between the current paper currency and the previous paper currency when the paper currency is not clamped through a plurality of detection sensors; the second time distance between the current paper money and the previous paper money is measured in real time, and when the difference value between the second time distance and the first time distance is larger than a second preset threshold value, the paper money is indicated to be blocked, error reporting is carried out, the response speed of the paper money is improved, the blocking of the paper money is prevented, the probability of false alarm of the paper money is reduced, and the purpose of detecting the paper money blocked at the branch position of the channel is realized.
Description
Technical Field
The invention relates to the technical field of financial self-service equipment, in particular to a paper money clamping detection method and financial self-service equipment.
Background
When the automatic teller machine core runs, if paper money is blocked in the core, the problem of paper money clamping can occur. According to the traditional paper money clamping detection method, a correlation sensor is arranged in a paper money channel at a certain interval, when the time that the paper money covers the correlation sensor is longer than a preset threshold value, the paper money clamping condition is considered to appear on the paper money, and an alarm is given out and the machine is stopped.
The conventional paper money jamming detection method has the following problems that if the preset threshold value is too small, when the paper money is continuously printed, the jamming of the paper money is misinformed; if the preset threshold value is too large, paper money can be stacked together and then the paper money clamping can be reported, so that the machine core breaks down, and the machine core cannot be normally used.
Therefore, there is a need for a method and a financial self-service device for detecting jammed paper money, which have a fast response speed, prevent the jammed paper money from being stuck, reduce the probability of false alarm of jammed paper money, and detect the jammed paper money at the branch of the channel, so as to solve the above-mentioned technical problems in the prior art.
Disclosure of Invention
The invention aims to provide a paper money clamping detection method and financial self-service equipment, which improve the response speed of clamping paper money, prevent the clamping of the paper money, reduce the probability of false alarm of the clamping paper money and realize the aim of detecting the clamping paper money at the branch position of a channel.
In order to achieve the purpose, the invention adopts the following technical scheme:
a paper money clamping detection method is characterized in that a paper money conveying channel is arranged in a machine core and comprises a straight channel and a branched channel which are communicated, and a plurality of detection sensors are arranged in the paper money conveying channel; assuming that the first detection sensor does not generate paper money jamming, the first detection sensor is a detection sensor through which paper money passes in the paper money conveying channel; assuming that no paper money is jammed when a first paper money after the initialization of the machine core passes through the paper money conveying channel and the plurality of detection sensors, and assuming that no paper money is jammed when any paper money after the initialization of the machine core passes through the first section channel, the paper money jamming detection method comprises the following steps:
step S01, recording position information of a plurality of detection sensors;
step S02, judging the position of the current paper currency, and when the current paper currency is positioned at the detection sensor, performing step S0211; performing step S0221 when the current banknote is located at the banknote transport path;
step S0211, acquiring the time when the current paper money passes through the current detection sensor and the time when the current paper money passes through the last detection sensor of the current detection sensor;
step S0212, obtaining the difference value between the time when the current paper money passes through the current detection sensor and the time when the current paper money passes through the last detection sensor of the current detection sensor, if the difference value is larger than a first preset threshold value, indicating that the paper money is blocked, and reporting an error;
step S0221, obtaining a first time distance between the current paper currency and the previous paper currency when the paper currency is not clamped;
step S0222, measuring a second time distance between the current paper currency and the previous paper currency in real time through a detection sensor;
and S0223, obtaining a difference value between the second time distance and the first time distance, and if the difference value is greater than a second preset threshold value, indicating that the banknote is blocked and reporting an error.
As an optimal technical scheme of a paper money clamping detection method, the first detection method for detecting the clamping of the paper money by a sensor comprises the following steps: when the time that the first detection sensor is shielded by the paper money is longer than a third preset threshold value, the paper money is blocked at the first detection sensor, and an error is reported.
As an optimal technical scheme of the paper money clamping detection method, the detection method for clamping the first paper money and any paper money through the first section of channel comprises the following steps:
when the conveying time of the paper money is longer than the preset threshold value of the corresponding channel in the conveying process of the paper money in each straight channel and each branched channel, the paper money is blocked in the channel, and the error is reported.
As a preferred technical scheme of the paper money clamping detection method, the preset threshold value of each straight channel and each branch channel is obtained by measuring the time distance between two adjacent detection sensors or by the operation of a machine core in advance.
As an optimal technical scheme of the paper money clamping detection method, the detection method for clamping the first paper money and any paper money through the first section of channel comprises the following steps:
and when the conveying time of the paper money is longer than the integral preset threshold value in the conveying process of the paper money in each straight channel and each branched channel, indicating that the paper money is jammed and reporting errors.
As a preferred technical scheme of the paper money clamping detection method, the difference of the lengths of two parallel bifurcate channels is smaller than the width of the paper money.
As a preferred technical scheme of the paper money clamping detection method, a binary tree storage structure is adopted to store the position information of a plurality of detection sensors.
As a preferred technical scheme of a paper money clamping detection method, a left sub-tree in the binary tree has a branching function, and a right sub-tree does not have the branching function; or, the right subtree in the binary tree has a bifurcation function, and the left subtree does not have the bifurcation function.
As a preferred technical scheme of the paper money clamping detection method, the detection sensor is a correlation sensor.
In order to achieve the purpose, the invention also provides financial self-service equipment applying the paper money card detection method.
The invention provides a paper money clamping detection method and financial self-service equipment, wherein the financial self-service equipment applies the paper money clamping detection method, in the paper money clamping detection method, firstly, the position information of a plurality of detection sensors needs to be recorded so as to be convenient for judging whether the detection sensors are positioned in a straight channel or a branched channel, in the invention, the paper money clamping detection method is divided into a detection method positioned at the detection sensors and a detection method positioned at a paper money conveying channel, wherein:
the detection method at the detection sensor takes the time that the current paper money passes through the last detection sensor as a reference, and when the difference between the time that the current paper money passes through the current detection sensor and the time that the current paper money passes through the last detection sensor is larger than a first preset threshold value, the paper money is indicated to be blocked, and an error is reported. The controller counts the paper money passed by each detection sensor, and when the paper money passes through the detection sensors on the straight channel, the difference between the time when the paper money passes through the current detection sensor and the time when the paper money with the same serial number as that of the previous detection sensor and the current detection sensor passes is directly made and compared with a first preset threshold value to judge whether the paper money is jammed or not. Because part of paper money can pass through one of the two parallel branched channels and part of paper money can pass through the other of the two parallel branched channels, when the paper money passes through the detection sensor of the branched channel, the number of the paper money passing through the detection sensors in the two parallel branched channels is required to be summed, then the time for the paper money with the summation serial number of the last detection sensor to pass through is called, after the time for the paper money to pass through the last detection sensor is obtained, the difference between the time for the paper money to pass through the current detection sensor and the time for the paper money to pass through the last detection sensor is compared with a first preset threshold value, and whether the paper money is clamped or not is judged;
the detection method at the paper money conveying channel takes the first time distance between the current paper money and the previous paper money as a reference, measures the second time distance between the current paper money and the previous paper money in real time, and indicates that the paper money is jammed when the difference value between the second time distance and the first time distance is larger than a second preset threshold value. In the practical application process, taking the current detection sensor and the previous detection sensor as an example, the current banknote is transported in the channel between the current detection sensor and the previous detection sensor, and after the previous banknote leaves the current detection sensor, timing is started (when the current banknote reaches the current detection sensor, timing is finished), the timing time is the second time distance, and when the difference value between the timing time and the first time distance is greater than the second preset threshold value, it is indicated that the distance between the current banknote and the previous banknote is increased, and the banknote jam is indicated. For the bifurcate channel, after the current paper currency leaves the detection sensor in the bifurcate channel, because the conveying paths of the current paper currency in the two bifurcate channels are unknown, the two bifurcate channels are respectively timed, and if the difference between the two timed time and the first time distance is greater than a second preset threshold value, the distance between the current paper currency and the previous paper currency is increased, and the paper currency jam is indicated;
the invention respectively detects the paper money in the detection sensor and the paper money in the paper money conveying channel, and the first preset threshold value and the second preset threshold value can be respectively adjusted, thereby improving the response speed of the paper money clamping, preventing the paper money from being stuck, reducing the false alarm probability of the paper money clamping, and realizing the aim of detecting the paper money clamping at the branch position of the channel.
Drawings
FIG. 1 is a schematic diagram of a banknote transport path and detection sensor arrangement according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a binary tree according to an embodiment of the present invention.
Reference numerals:
100. a paper money conveyance path; 1001. a straight channel; 1002. a bifurcated passage; 200. and detecting the sensor.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, a banknote carrying path 100, the banknote carrying path 100 includes two straight paths 1001 connected with each other, two bifurcate paths 1002 connected in parallel behind the two straight paths 1001, a detection sensor a and a detection sensor B are respectively provided at the tail ends of the two straight paths 1001, and a detection sensor C and a detection sensor D are respectively provided at the tail ends of the two bifurcate paths 1002, and this embodiment is explained with the banknote carrying path 100.
The embodiment provides a method for detecting a paper currency blocked, wherein a paper currency conveying channel 100 is arranged in a machine core, the paper currency conveying channel 100 comprises a straight channel 1001 and a branched channel 1002 which are communicated, and a plurality of detection sensors 200 are arranged in the paper currency conveying channel 100; assuming that the first detecting sensor 200 does not generate the jam, the first detecting sensor 200 is the detecting sensor 200 through which the bill passes first in the bill carrying path 100; assuming that no banknote jam occurs when the first banknote after the initialization of the movement passes through the banknote carrying channel 100 and the plurality of detection sensors 200, and assuming that no banknote jam occurs when any banknote after the initialization of the movement passes through the first-stage channel, the banknote jam detection method includes:
in step S01, position information of the plurality of detection sensors 200 is recorded. By recording the position information of the plurality of detection sensors 200, it can be judged that the detection sensor 200 is located in the straight channel 1001 or the branch channel 1002, so that the controller retrieves the data of the bill of the last detection sensor 200.
Step S02, judging the position of the current paper currency, and when the current paper currency is positioned at the detection sensor 200, performing step S0211, namely the detection method at the detection sensor; when the current banknote is located at the banknote transport path 100, step S0221, a detection method located at the banknote transport path, is performed.
And step S0211, acquiring the time when the current paper currency passes through the current detection sensor (200) and the time when the current paper currency passes through the last detection sensor (200) of the current detection sensor (200).
And S0212, obtaining the difference value between the time when the current paper currency passes through the current detection sensor (200) and the time when the current paper currency passes through the last detection sensor (200) of the current detection sensor (200), and if the difference value is greater than a first preset threshold value, indicating that the paper currency is blocked and reporting an error.
Illustratively, after a bill passes through the detection sensor a during the conveyance of the bill on the straight passage 1001, the time T for the bill to pass through the detection sensor a is recorded1The time T1As a criterion for judging whether the next detection sensor B is jammed, if the paper money is not jammed in the process of being conveyed from the detection sensor A to the detection sensor B, the detection sensor B starts to count the time when detecting the paper money (when the detection sensor B can not detect the paper money, the counting is finished, which shows that the paper money passes through the detection sensor B), and the counted time and the time T are measured in real time1And (4) making a difference, if the difference value is larger than a first preset threshold value, indicating that the paper money is jammed at the detection sensor B, and reporting an error.
Illustratively, after a banknote passes through the detection sensor B during the transportation of the banknote on the bifurcating path 1002, the time T for the banknote to pass through the detection sensor B is recorded2The time T2As a criterion for determining whether or not a bill is jammed at the next detecting sensor C or detecting sensor D, if the bill is not jammed during the transport from the detecting sensor B to the detecting sensor C or detecting sensor D, the counting of time is started when the detecting sensor C or detecting sensor D detects the bill (when the detecting sensor C or detecting sensor D cannot detect the bill)When the paper money is detected, the timing is finished, which indicates that the paper money passes through the detection sensor C or the detection sensor D), and the timing time and the time T are measured in real time2And (4) making a difference, if the difference value is larger than a first preset threshold value, indicating that the paper money is jammed at the detection sensor C or the detection sensor D, and reporting an error. The controller calls the time T2The process comprises the following steps: summing the number of paper money passing through the detection sensor C and the detection sensor D, and calling the time of the summation figure in the detection sensor B as the time T2。
Illustratively, the first preset threshold may be 50 ms. It should be noted that the first preset threshold is obtained empirically by those skilled in the art.
The detection method at the detection sensor 200 takes the time when the paper currency passes the last detection sensor 200 as a reference, and when the difference between the time when the paper currency passes the current detection sensor 200 and the time when the paper currency passes the last detection sensor 200 is larger than a first preset threshold value, the paper currency is blocked, and the error is reported. The controller counts the number of the paper money passed by each detection sensor 200, and when the paper money passes through the detection sensor 200 on the straight channel 1001, the controller directly compares the time when the paper money passes through the current detection sensor 200 with the time when the paper money with the same serial number as that of the previous detection sensor 200 and the current detection sensor 200 passes through a first preset threshold value to judge whether the paper money is jammed. Since a part of the paper money passes through one of the two parallel bifurcate channels 1002 and a part of the paper money passes through the other of the two parallel bifurcate channels 1002, when the paper money passes through the detection sensor 200 of the bifurcate channel 1002, the number of the paper money passing through the detection sensor 200 of the two parallel bifurcate channels 1002 needs to be summed, then the time for the paper money with the summed serial number of the last detection sensor 200 to pass through is called, and after the time for the paper money to pass through the last detection sensor 200 is obtained, the difference between the time for the paper money to pass through the current detection sensor 200 and the time for the paper money to pass through the last detection sensor 200 is obtained and compared with a first preset threshold value to judge whether the paper money is jammed.
Among the detection methods of the detection sensor 200, the first detection method of detecting the banknote jam by the detection sensor 200 is: when the time that the first detection sensor 200 is shielded by the paper money is longer than a third preset threshold value, the paper money is jammed at the first detection sensor 200, and an error is reported. When the first detection sensor 200 is jammed, the worker overhauls the movement, after the overhaul is completed, the movement is initialized, and all paper money passing through the detection sensor 200 after the movement is initialized is counted again.
Step S0221, obtaining a first time distance between the current paper currency and the previous paper currency when the paper currency is not clamped;
step S0222, measuring a second time distance between the current paper currency and the previous paper currency in real time through the detection sensor 200;
and S0223, obtaining a difference value between the second time distance and the first time distance, and if the difference value is greater than a second preset threshold value, indicating that the banknote is blocked and reporting an error.
Illustratively, when the preceding bill leaves the detection sensor a during conveyance of the bills on the straight passage 1001, the time is denoted by t1When the current bill arrives at the detecting sensor A, the time is recorded as t2，t2-t1For a first time distance T between the current banknote and the previous banknote3Will be T3As a reference, when the previous banknote leaves the detection sensor B, the counting of the time is started, and the counting time and T are calculated in real time3When the difference is larger than a second preset threshold value, the banknote is indicated to be blocked, and error is reported.
Illustratively, when the preceding bill leaves the detection sensor B during conveyance on the bifurcating path 1002, the time is denoted by t3When the current bill arrives at the detecting sensor B, the time is recorded as t4，t4-t3For a first time distance T between the current banknote and the previous banknote4Will be T4As a reference, when the previous banknote leaves the detection sensor C or the detection sensor D, the counting is started, and the counting time and the time T are calculated in real time4And if the difference is larger than a second preset threshold value, indicating that the paper money is blocked and reporting an error.
The detection method at the banknote transport path 100 measures a second time distance between the current banknote and the previous banknote in real time by taking a first time distance between the current banknote and the previous banknote as a reference, and indicates that the banknote is jammed when a difference value between the second time distance and the first time distance is greater than a second preset threshold value. In the practical application process, taking the current detection sensor 200 and the previous detection sensor 200 as an example, the current banknote is transported in the channel between the current detection sensor 200 and the previous detection sensor 200, and after the previous banknote leaves the current detection sensor 200, timing is started (when the current banknote passes through the current detection sensor 200, the timing is finished), the timing time is the second time distance, and when the difference between the timing time and the first time distance is greater than the second preset threshold, it is indicated that the distance between the current banknote and the previous banknote is increased, and it is indicated that the banknote is jammed. For the bifurcate passage 1002, after a previous banknote leaves the detection sensor 200 in the bifurcate passage 1002, since the transport paths of the current banknote in the two bifurcate passages 1002 are unknown, the two bifurcate passages 1002 are respectively timed, and if the difference between the two timed times and the first time distance is greater than the second preset threshold, it indicates that the distance between the current banknote and the previous banknote is increased, and it indicates that the banknote is jammed.
The card paper money in this embodiment to the card paper money of detection sensor 200 department and the paper currency transport passageway 100 detects respectively, and first threshold value and the second of predetermineeing predetermines the threshold value and can adjust respectively, has improved card paper money response speed, prevents that the card paper money card from dying, reduces card paper money wrong report probability, and has realized carrying out the purpose that the card paper money detected to passageway bifurcation department. Specifically, the size of the first preset threshold and the second preset threshold determines the sensitivity of the banknote clamping detection, and when the first preset threshold and the second preset threshold are increased, the sensitivity of the banknote clamping detection is reduced, so that the banknote clamping is not easy to detect; when the first preset threshold and the second preset threshold are reduced, the detection sensitivity of the card money is improved, the card money can be reported more quickly, and the first preset threshold and the second preset threshold can be flexibly changed according to practical application and customer requirements.
In the detection method at the banknote transport path 100, the detection method of the first banknote jam and any banknote jam in the first-stage path is as follows: when the conveying time of the paper money is longer than the preset threshold value of the corresponding channel in the conveying process of the paper money in each straight channel 1001 and each branched channel 1002, the paper money is blocked in the channel, and the error is reported. Specifically, the preset threshold value of each straight channel 1001 and each branched channel 1002 is obtained by measuring the time distance of two adjacent detection sensors 200 or by the preliminary operation of the movement.
Alternatively, in the detection method at the banknote carrying path 100, the detection method for the first banknote and any banknote being jammed in the first path is as follows: when the paper money is conveyed in each straight channel 1001 and each branch channel 1002 for a time longer than the overall preset threshold, it is indicated that the paper money is jammed and an error is reported. For example, the overall preset threshold may be 150ms, that is, a banknote leaves the detection sensor a and cannot reach the detection sensor B after 150ms, and thus, the layout of the detection sensors in the movement should ensure that the spacing between the detection sensors is not more than 150 ms.
If the paper money is jammed in the paper money rubbing mechanism, detection methods such as overtime paper money outputting, paper money grinding and jamming or rotation blocking can be adopted for detection.
To ensure that the two notes are transported in the two parallel bifurcating paths 1002 without the problem of out of order, the difference between the lengths of the two parallel bifurcating paths 1002 is smaller than the width of the notes. For example, the difference between the lengths of two parallel diverging passageways 1002 is no greater than 25ms core design velocity v.
As shown in fig. 2, a storage structure employing a binary tree stores position information of a plurality of detection sensors 200. Preferably, the left sub-tree in the binary tree has a bifurcation function, and the right sub-tree does not have the bifurcation function; or, the right subtree in the binary tree has a bifurcation function, and the left subtree does not have the bifurcation function. In this embodiment, the left sub-tree in the binary tree has a bifurcation function, and the right sub-tree does not have a bifurcation function. From the viewpoint of data use, the present embodiment performs the banknote jam detection by using the backward detection sensor to look up data from the forward detection sensor, that is, when the banknote arrives at or leaves from the detection sensor B, the detection sensor a looks up data of the corresponding number of banknotes from the detection sensor a in the backward direction for comparison, and it is assumed that the distance from the detection sensor B to the detection sensor a is nearly infinite, but one banknote arrives at the detection sensor B, which is the first banknote for the detection sensor B, and the nth previous banknote for the detection sensor a, so a buffer area large enough to buffer the N banknote information is required, because the detection sensor distance in practical application is not infinite, the layout distance of the detection sensors in the cassette is not more than 300mm, and the cassette deck speed floats between 1-2m/s, the maximum number of the paper money which can be accommodated between the sensors is detected, and chip space is saved as much as possible, and the latest five pieces of paper money information are selected and cached.
Preferably, in the present embodiment, the detection sensor 200 is a correlation sensor.
The embodiment also provides financial self-service equipment which applies the paper money clamping detection method. Financial self-service equipment in this embodiment has improved card paper money response speed, prevents that the card paper money card from dying, reduces card paper money wrong report probability, and has realized carrying out the purpose that the card paper money detected to passageway bifurcation department.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. A paper money clamping detection method is characterized in that a paper money conveying channel (100) is arranged in a machine core, the paper money conveying channel (100) comprises a straight channel (1001) and a branched channel (1002) which are communicated, and a plurality of detection sensors (200) are arranged in the paper money conveying channel (100); assuming that the first detection sensor (200) does not generate paper money jamming, the first detection sensor (200) is the detection sensor (200) through which the paper money firstly passes in the paper money conveying channel (100); assuming that no paper money is jammed when a first paper money after the initialization of the machine core passes through the paper money conveying channel (100) and the plurality of detection sensors (200), and assuming that no paper money is jammed when any paper money after the initialization of the machine core passes through the first section channel, the paper money jamming detection method comprises the following steps:
a step S01 of recording position information of a plurality of detection sensors (200);
step S02, judging the position of the current paper currency, and when the current paper currency is positioned at the detection sensor (200), performing step S0211; performing step S0221 when the current banknote is located at the banknote transport path (100);
step S0211, acquiring the time when the current paper currency passes through the current detection sensor (200) and the time when the current paper currency passes through the last detection sensor (200) of the current detection sensor (200);
step S0212, obtaining the difference value between the time when the current paper money passes through the current detection sensor (200) and the time when the current paper money passes through the last detection sensor (200) of the current detection sensor (200), and if the difference value is larger than a first preset threshold value, indicating that the paper money is jammed and reporting an error;
step S0221, obtaining a first time distance between the current paper currency and the previous paper currency when the paper currency is not clamped;
step S0222, measuring a second time distance between the current paper currency and the previous paper currency in real time through a detection sensor (200);
and S0223, obtaining a difference value between the second time distance and the first time distance, and if the difference value is greater than a second preset threshold value, indicating that the banknote is blocked and reporting an error.
2. The method for detecting a jammed banknote as claimed in claim 1, wherein the method for detecting the jammed banknote by the first detecting sensor (200) comprises: when the time that the first detection sensor (200) is shielded by the paper money is longer than a third preset threshold value, the paper money is blocked at the first detection sensor (200) and an error is reported.
3. The method for detecting a banknote jam as claimed in claim 1 wherein the first banknote jam and any banknote jam are detected by the first channel:
when the conveying time of the paper money is longer than the preset threshold value of the corresponding channel in the conveying process of the paper money in each straight channel (1001) and each branched channel (1002), the paper money is blocked in the channel, and the error is reported.
4. A method for detecting a banknote jam as claimed in claim 3, wherein the predetermined threshold values for each straight channel (1001) and each diverging channel (1002) are obtained by measuring the time distance between two adjacent detection sensors (200) or by pre-operating the cassette mechanism.
5. The method for detecting a banknote jam as claimed in claim 1 wherein the first banknote jam and any banknote jam are detected by the first channel:
when the conveying time of the paper money is longer than the integral preset threshold value in the conveying process of the paper money in each straight channel (1001) and each branched channel (1002), the paper money is blocked, and the error is reported.
6. The method for detecting a jammed banknote as claimed in claim 1, wherein the difference between the lengths of two juxtaposed diverging passages (1002) is smaller than the width of the banknote.
7. The method for detecting a paper money jammed according to claim 1, wherein a memory structure of a binary tree is used to store the position information of the plurality of detecting sensors (200).
8. The method of detecting a banknote jam as claimed in claim 7 wherein the left sub-tree in the binary tree has a bifurcating function and the right sub-tree has no bifurcating function; or, the right subtree in the binary tree has a bifurcation function, and the left subtree does not have the bifurcation function.
9. The method for detecting a banknote jam as claimed in claim 1, wherein the detection sensor (200) is a correlation sensor.
10. Financial self-service equipment, characterized in that a method of banknote card detection according to any one of claims 1-9 is applied.
Priority Applications (1)
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