CN106887074A - Method and device for identifying counterfeit money - Google Patents

Abstract

A method and device for identifying counterfeit money is used for identifying a money with an anti-counterfeiting structure, and the anti-counterfeiting structure generates continuous light reflection change during the rotation of the money. The invention collects each reflection brightness generated in the coin rotation process, compares each reflection brightness based on a brightness comparison standard, counts the times that the reflection brightness is higher than the brightness comparison standard, and judges whether the counted times fall into a true coin identification range or not, if yes, the true coin is identified, otherwise, the false coin is identified.

Description

Method and device for identifying counterfeit money

technical field

The invention relates to a counterfeit coin identification method and a device thereof, in particular to an identification method and a counterfeit coin identification method based on the number of reflections of a coin as a basis for judging authenticity.

Background technique

With the increase in the ability of unscrupulous operators to make counterfeit coins, the minting units of each country are all improving the anti-counterfeiting capabilities of coins, as disclosed in the patent case No. M443241 of the Taiwan New Bulletin, which discloses a The coin with continuously changing anti-counterfeiting structure presents different anti-counterfeiting graphics and different reflection changes at different viewing angles to increase the anti-counterfeiting ability of the coin. However, the above-mentioned anti-counterfeiting structure is still imitated by unscrupulous operators to make counterfeit coins that are difficult for ordinary people to distinguish.

In this regard, some operators have proposed equipment or methods for coin recognition, as disclosed in Patent No. 432341, Taiwan Invention Announcement. image recognition, but this inspection method cannot be used on the above-mentioned coins with continuously changing anti-counterfeiting structures. The usefulness of the anti-counterfeit structure can only be seen from different perspectives, so that the anti-counterfeit structure loses its use, and the authenticity of the coin cannot be reliably identified.

Furthermore, in addition to the above-mentioned technical solutions, it is also disclosed in the patent case No. 409489 of the Taiwan New Announcement, which projects light on the coin to be identified to check the multiple notches on the periphery of the coin, using different notches It will produce the characteristics of different light and dark changes, collect the light reflected by each notch, judge whether the number of notches around the coin and the width of each notch are consistent with the real coin, and identify the coin as genuine or counterfeit. However, due to the proficiency of today's mechanical processing and minting technology, the engraving around the coin is a structure that is easy to re-engrave, which makes the above technical solution unable to effectively distinguish the authenticity, and the patent case cannot identify the anti-counterfeiting structure of the above-mentioned coins, and it is also anti-counterfeiting The structure loses its purpose.

Contents of the invention

The main purpose of the present invention is to solve the problem that the existing methods for identifying counterfeit coins cannot identify the authenticity of coins with continuously changing anti-counterfeiting structures.

In order to achieve the above object, the present invention provides a method for identifying counterfeit coins, which is used to identify a coin provided with an anti-counterfeit structure, and the anti-counterfeit structure produces continuous reflective changes during the rotation of the coin. The method includes the following steps:

Step 1: placing the coin on a turntable, causing the turntable to rotate to rotate the coin;

Step 2: using a brightness sensor to collect the brightness of each reflection of the coin during its rotation;

Step 3: using an identification module to compare each reflective brightness with a brightness comparison standard, and count the number of times the reflective brightness is higher than the brightness comparison standard; and

Step 4: Use the identification module to determine whether the number of times matches with a genuine coin identification range, if it is identified as genuine coin, otherwise it is counterfeit coin.

In one embodiment, the step 1 or the step 2 further includes a sub-step of using a light-projecting element to project light on the coin.

In one embodiment, the first step is to make the turntable rotate a circle.

In one embodiment, the step 1 further includes a sub-step of using the brightness sensor to capture ambient light to generate a reference brightness before coin verification, and using the reference brightness to calibrate the brightness comparison standard.

In one embodiment, the step 1 further includes a sub-step of using an object detection element to determine whether the coin is placed on the turntable, if there is a continuation of identification, and if not, stop the identification.

In addition to the above method, the present invention also provides an identification device, which includes a rotating drive member, a turntable, a brightness sensor and an identification module. The turntable is assembled with the rotary drive part for placing the coin. The brightness sensor is set corresponding to the turntable, and captures the brightness of each reflection of the coin during the rotation of the turntable. The information of the identification module is connected to the brightness sensor to obtain The reflective brightness is used to identify the authenticity of the coin based on a luminance comparison standard and an authenticity coin identification range preset by the identification module.

In one embodiment, the brightness sensor is disposed corresponding to the turntable at an inclination angle.

In one embodiment, the identification device further includes a pair of light projection elements disposed on the turntable.

In one embodiment, the light projecting element is arranged corresponding to the turntable at the inclination angle.

In one embodiment, the brightness sensor includes a photosensitive element and a conversion circuit electrically connected to the photosensitive element to transmit each reflected light brightness to the identification module in a voltage form. Further, the photosensitive element is a blue light sensing element, and the light projecting element is a warm white light emitting diode.

In one embodiment, the identification device further has an object detection part connected to the identification module and detecting the turntable after activation.

In one embodiment, the identification device further has a prompt element connected to the identification module.

Through the above technical solution of the present invention, compared with the existing ones, it has the following characteristics: the present invention collects each reflective brightness generated during the rotation of the coin, and compares each reflective brightness based on the brightness comparison benchmark, and counts these The reflective luminance is higher than the number of times compared with the luminance comparison standard, and then it is judged whether the counted number of times falls within a range of identifying authenticity and counterfeiting, thereby achieving the purpose of authenticity testing for anti-counterfeiting structures with continuous changes.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is a schematic diagram of the appearance of a device according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of partial disassembly of a device according to an embodiment of the present invention;

Fig. 3 is a partial top view of the device according to an embodiment of the present invention;

Fig. 4 is a schematic flow chart of the first embodiment of the method of the present invention;

Fig. 5 is a schematic flow chart of the second embodiment of the method of the present invention;

Fig. 6 is a schematic flowchart of the third embodiment of the method of the present invention.

Among them, reference signs

1...........Identification device

11..........Rotary drive

12..........Turntable

13..........Brightness sensor

131...........Reflective brightness

132...........Reference brightness

14..........Identification module

141...........Micro control unit

142..........Conversion circuit

15...........Prompt element

16...........Light-emitting element

17........... Object detection parts

20, 21, 22, 23....steps

24, 25, 26...... Substeps

9..........Coin

detailed description

Relating to the detailed description and technical content of the present invention, it is now described as follows in conjunction with the accompanying drawings:

Please refer to Fig. 1 to Fig. 4, the counterfeit coin identification method and its device of the present invention are mainly used to identify a coin 9 provided with an anti-counterfeit structure, the anti-counterfeit structure will present different visual effects when observed from different angles of view through optical design , and the anti-counterfeiting structure will produce continuous reflective changes during the rotation of the coin 9 . For example, the coin 9 can be a 50-yuan coin from Taiwan, China.

In order to specifically describe the technology of the present case, the identification device 1 of the present invention is firstly described here. The identification device 1 includes a rotary driving member 11 , a turntable 12 , a brightness sensor 13 and an identification module 14 . Wherein, the rotary driving member 11 can be a stepping motor or an element that can rotate at a constant speed once set. The turntable 12 is assembled with the rotary drive member 11 and rotates synchronously when the rotary drive member 11 rotates. On the other hand, the turntable 12 can be used for the coins 9 to be placed on it. Moreover, the brightness sensor 13 is arranged corresponding to the turntable 12, and captures each reflection brightness 131 of the coin 9 during the rotation of the turntable 12. Further, in order to make the brightness sensing element 13 feel the reflective changes produced by the coin 9 rotation process more reliably, in one embodiment, the brightness sensing element 13 is arranged corresponding to the turntable 12 at an inclination angle. In addition, the identification module 14 of the present invention is designed and constructed by a plurality of electronic components, and these electronic components include at least one micro-control unit 141, and the micro-control unit 141 can be written into a programming language by means of burning, etc. And preset a luminance comparison standard and a genuine coin identification range, wherein, this luminance comparison standard is used to compare with these reflective brightness 131, and this authentic coin identification range then is a numerical range, and with The number of times that the reflective brightness 131 is greater than the light brightness comparison reference is used as a judging factor. Moreover, in one embodiment, the light brightness comparison reference is set as a voltage level, and the identification module 14 has a conversion circuit 142 for converting each of the reflected light brightness 131 into a voltage type, specifically, The conversion circuit 142 is an analog/digital conversion circuit. The conversion circuit 142 converts the detection result of the brightness sensor 13 at a sampling frequency, and the setting of the sampling frequency can be adjusted accordingly according to the implementation requirements. As above, in one embodiment, the identification device 1 further has a prompting element 15 connected to the identification module 14, the prompting element 15 can be a buzzer or a display, etc., and the prompting element 15 accepts the recognition module 14 The recognition result, and inform the operator of the detection result by means of prompts such as buzzer or display.

Continuing from the above, and referring to Fig. 1 to Fig. 5, the identification method includes the following steps:

Step 120: placing the coin 9 on the turntable 12, causing the turntable 12 to rotate to rotate the coin 9;

Step 2 21: Use the brightness sensor 13 to collect each of the reflective brightness 131 during the rotation of the coin 9;

Step 3 22: use the identification module 14 to compare each of the reflective brightness 131 with the brightness comparison standard, and count the number of times that the reflective brightness 131 is higher than the brightness comparison standard;

Step 4 23: Use the identification module 14 to determine whether the number of times matches the identification range of the genuine and counterfeit currency. If it is a genuine currency, otherwise it is a counterfeit currency.

Describe above-mentioned steps in detail, at the initial stage that this identification method of the present invention implements, this coin 9 is placed on this rotating disk 12 with the side with this anti-counterfeit structure, that is to say makes the side of this coin 9 that has this anti-counterfeit structure directly face this brightness sensor 13. Then, start the rotary driving part 11 to make it rotate according to the working instructions given by the micro-control unit 141, and the turntable 12 is driven by the rotary driving part 11 to rotate, and enters the step 221. In one embodiment, when the step 120 is executed, the micro-control unit 141 makes the rotary driving member 11 rotate a circle, and the turntable 12 also rotates a circle. As above, in the step 21, the coin 9 placed on the turntable 12 produces continuous reflective changes due to rotation, and at this time, the coin 9 is collected by using the brightness sensor 13 set corresponding to the turntable 12 Each reflective brightness 131 during rotation, that is, the brightness sensor 13 collects each reflective brightness 131 during the rotation of the coin 9 , and enters into step three 22 . During the execution of Step 3 22, the identification module 14 receives the reflective brightness 131 delivered by the brightness sensor 13, and compares each reflective brightness with the light brightness comparison standard preset in the identification module 14 131 compares, judges whether each reflective brightness 131 is higher than the brightness comparison standard, and counts the number of times that the reflective brightness 131 is higher than the brightness comparison standard. More specifically, the identification module 14 compares each of the reflective luminances 131 one by one, and when one of the reflective luminances 131 is higher than the brightness comparison reference, the identification module 14 records once, and then records the other reflective luminance When 131 is higher than the light judgment standard, the identification module 14 is counting once, and so on, until each of the reflective brightness 131 detected and obtained by the coin 9 in the identification process is compared, after this, the identification module 14 Count the number of times that the reflective luminance 131 is higher than the luminance comparison standard, and enter into step four 23 . During the execution of step 4 23, the identification module 14 judges whether the number of times conforms to the preset authenticity coin identification range, and if the number of times falls within the range of the authenticity coin identification range, it is identified as a genuine coin , otherwise it is counterfeit. Furthermore, the setting of the identification range of the genuine and counterfeit coins can be based on the number of times that the continuous reflective changes exceed the light judgment criteria when the coin 9 is genuine, and in order to increase credibility, the identification range of the authentic and counterfeit coins can be further The average of the number of times produced for multiple authentic coins. For example, when the identification range of the genuine and counterfeit coin is that the number of times the coin 9 rotates and reflects light beyond the brightness comparison standard is four to five times, when the number of times the coin 9 to be identified is identified is four times, that is It is judged to be a genuine coin, and if the number of times that the coin 9 is identified to be identified is three times, it is judged to be a counterfeit coin. Furthermore, the identification method disclosed above in the present invention can further be adjusted accordingly due to the difference in material of the coin 9 or other factors.

2, 4, 6, in one embodiment, the identification device 1 further includes a pair of light projection elements 16 arranged on the turntable 12, and the light projection elements 16 can be further controlled by the identification module 14. The included micro-control unit 141 controls and provides light to the turntable 12 during the identification process of the coin 9 to illuminate the coin 9 to make the reflection of the coin 9 more obvious. In this way, the identification method of the present invention further includes a sub-step 24 of using the light-projecting element 16 to project light on the coin 9 in the step 1 20 or the step 2 21 . Furthermore, in the present invention, the light projecting element 16 can be arranged at an inclined angle corresponding to the turntable 12 , as shown in FIG. 2 . Moreover, in one embodiment, the brightness sensing element 13 can be a blue light sensing element, and the light projecting element 16 is a warm white light emitting diode, so as to ensure that the brightness sensing element 13 is acceptable through the difference in light color temperature. Each of the reflective brightness 131 in the rotation of the coin 9 .

Please refer to FIG. 2 to FIG. 6 , in one embodiment, the identification device 1 further has an object detection part 17, and the object detection part 17 is connected to the identification module 14, and after being activated by the identification module 14, it is connected to the turntable 12 To detect, specifically, the object detection part 17 is used to judge whether the coin 9 is placed in the turntable 12, and if so, it can be detected. Furthermore, in one embodiment, the present invention can further use the detection result of the object detection element 17 as the basis for starting the identification. Accordingly, the step 120 of the identification method of the present invention may further include a sub-step 25 of using the object detector 17 to judge whether the coin 9 is placed on the turntable 12, if there is a continuation line identification, and if not, stop the identification.

Continuing from the above, the identification device 1 of the present invention can further enable the brightness sensor 13 to detect the ambient light source around the identification device 1 or the turntable 12 before performing identification in the normal state, or to detect a reference Brightness 132, using the reference brightness 132 to calibrate the brightness comparison standard, accordingly, the step 120 of the identification method of the present invention further has a step of using the brightness detection part 13 to capture ambient light to generate the reference brightness 132 Sub-step 26 of calibrating the lightness comparison baseline. In this way, during the execution of step 120, the identification module 14 has to activate the brightness detection component 13 in advance, so that the brightness detection component 13 senses the ambient light to generate the reference brightness 132, and The reference luminance 132 is transmitted to the micro-control unit 141 of the identification module 14, so that the micro-control unit 141 calibrates the luminance comparison standard according to the written program language, so that the luminance comparison standard can be based on the current Adjust the detection environment to increase the credibility of coin detection.

To sum up, the method and device for identifying counterfeit coins of the present invention are used to identify a coin provided with an anti-counterfeit structure, and the anti-counterfeit structure produces continuous light reflection changes during the rotation of the coin. The present invention collects the brightness of each reflection generated during the rotation of the coin, compares each reflection brightness based on a brightness comparison standard, counts the number of times the reflection brightness is higher than the brightness comparison standard, and then judges the statistics Whether the subsequent number of times falls within the identification range of a genuine and counterfeit coin, if so, it will be identified as a genuine coin, otherwise it will be a counterfeit coin. In this way, the problem that the existing identification method cannot detect the authenticity of the coins with continuously changing anti-counterfeiting structures is solved.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should all belong to the protection scope of the appended claims of the present invention.

Claims (13)

1. A method for identifying counterfeit coins, which is used to identify a coin provided with an anti-counterfeit structure, the anti-counterfeit structure produces continuous reflective changes during the rotation of the coin, its characteristics, the method comprises the following steps: Step 1: placing the coin on a turntable, causing the turntable to rotate to rotate the coin; Step 2: using a brightness sensor to collect the brightness of each reflection of the coin during its rotation; Step 3: using an identification module to compare each reflective brightness with a brightness comparison standard, and count the number of times the reflective brightness is higher than the brightness comparison standard; and Step 4: Use the identification module to determine whether the number of times matches with a genuine coin identification range, if it is identified as genuine coin, otherwise it is counterfeit coin. 2 . The method for identifying counterfeit coins as claimed in claim 1 , wherein the step 1 or the step 2 further comprises a sub-step of using a light projecting element to project light on the coin. 3 . 3. The method for identifying counterfeit money according to claim 1 or 2, wherein the first step is to make the turntable rotate a circle. 4. The method for identifying counterfeit coins as claimed in claim 1 or 2, wherein step 1 includes using the brightness sensor to capture ambient light to generate a reference brightness before coin verification and using the reference brightness The substep of calibrating the lightness comparison baseline. 5. The method for identifying counterfeit coins as claimed in claim 4, wherein the step 1 further comprises a sub-step of using an object detector to determine whether the coin is placed on the turntable, if there is a continuation line of identification, and if not, stop the identification step. 6. An identification device for counterfeit coins, used to identify a coin provided with an anti-counterfeit structure, the anti-counterfeit structure produces continuous light reflection changes during the rotation of the coin, the identification device is characterized in that it includes: a rotary drive; a turntable, which is assembled with the rotary driving part and used for placing the coins; A brightness sensor is set corresponding to the turntable, and captures the brightness of each reflection of the coin during the rotation of the turntable; An identification module is connected with the brightness sensing element to obtain the reflective brightness and to identify the authenticity of the coin based on a brightness comparison standard and an authenticity identification range preset by the identification module. 7 . The device for identifying counterfeit money according to claim 6 , wherein the brightness sensing element is arranged corresponding to the turntable at an inclined angle. 8 . 8. The identification device for counterfeit money according to claim 6 or 7, characterized in that the identification device further comprises a pair of light-projecting elements arranged on the turntable. 9 . The device for identifying counterfeit money according to claim 8 , wherein the light projecting element is arranged corresponding to the turntable at the inclination angle. 10 . 10 . The device for identifying counterfeit coins according to claim 8 , wherein the light brightness comparison reference is a voltage level, and the identification module has a conversion circuit for converting each reflected light brightness into a voltage type. 11 . 11. The identification device for counterfeit money according to claim 8, wherein the brightness sensing element is a blue light sensing element, and the light projection element is a warm white light emitting diode. 12. The identification device for counterfeit money according to claim 6 or 7, characterized in that the identification device further has an object detection part connected to the identification module and detecting the turntable after activation. 13. The identification device for counterfeit money according to claim 6 or 7, characterized in that the identification device further has a prompting element connected to the identification module.