CN110443087B - Mobile payment anti-copying method, device and system based on mole stripes - Google Patents
Mobile payment anti-copying method, device and system based on mole stripes Download PDFInfo
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- G—PHYSICS
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
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- G06K7/10257—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for protecting the interrogation against piracy attacks
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- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
- G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
- G06Q20/327—Short range or proximity payments by means of M-devices
- G06Q20/3274—Short range or proximity payments by means of M-devices using a pictured code, e.g. barcode or QR-code, being displayed on the M-device
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- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/382—Payment protocols; Details thereof insuring higher security of transaction
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K2019/06215—Aspects not covered by other subgroups
- G06K2019/06253—Aspects not covered by other subgroups for a specific application
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Abstract
The present disclosure provides a scheme for mobile payment anti-copying screen, comprising: pairing, at a ticket validator, the mobile device and the ticket validator for near field communication; the ticket checking machine generates a spatial frequency pair comprising a display spatial frequency Fa and a analytic spatial frequency Fb, then the display spatial frequency Fa is sent to the mobile equipment, and the analytic spatial frequency Fb is distributed to a photosensitive element of the camera; upon receiving the presentation spatial frequency Fa from the ticket validator, the mobile device generates a payment code having a moire of the presentation spatial frequency Fa; the camera of the ticket validator scans with the resolved spatial frequency Fb to capture the payment code with the moire of the exhibition spatial frequency Fa displayed on the display screen of the mobile device, and pairs the exhibition spatial frequency Fa and the resolved spatial frequency Fb to synthesize and verify a complete payment code using moire principle.
Description
Technical Field
The present disclosure relates to mobile payment anti-copy technology, and in particular to a mole pattern based mobile payment anti-copy technology.
Background
In recent years, with the growing development of mobile applications, people are increasingly accustomed to using mobile payments for daily consumption. Therefore, how to provide a fast and convenient mobile payment mode becomes a hot topic in the industry. In the process of mobile payment, people have undergone the course of using various payment codes such as payment digital passwords, payment links, bar codes, and so on, which have been popular until now. Taking two-dimensional codes as an example, the two-dimensional codes are also called two-dimensional Bar codes, which are a coding mode that is superpopular in mobile equipment in recent years, the common two-dimensional codes are QR codes, QR is called Quick Response, and compared with the traditional Bar Code Bar codes, the two-dimensional codes can store more information and can also represent more data types. Therefore, the two-dimensional code is a brand new information storage, transmission and identification technology, and is paid attention to by many countries in the world since the birth date. The two-dimension code technology is applied to the management of various certificates by the departments of public security, foreign exchange, military and the like in many countries, the two-dimension code technology is also applied to the management of various reports and bills by the departments of customs, tax and the like, the management of commodities and goods transportation by the departments of business, transportation and the like, the management of postal packages by the postal department and the automatic management of industrial production lines in the industrial production field. Particularly, with the increasing functions of mobile phones, mobile payment is rapidly developed. The most common mobile payment is that a user can realize payment settlement with a merchant account by scanning a two-dimension code through a mobile phone client. And another application form of the two-dimension code is electronic ticket business, namely, the electronic ticket in the two-dimension code form is used for replacing the traditional paper ticket.
However, with the continuous development of electronic ticketing applications, the drawbacks of the conventional two-dimensional code technology are also increasingly highlighted. For example, after the traditional paper ticket is rewound by the cattle, the paper ticket needs to be sent to the hand of a purchaser, but with the wide use of the two-dimension code technology in electronic ticketing, the two-dimension code picture of the electronic ticket can be directly transmitted by using a communication tool and forwarded to other people or copied to other people by using screen recording software so as to realize ticket checking. Thus, there is a need to provide effective pay code anti-copy techniques to ensure that they are not copied for use by other users.
Disclosure of Invention
The present disclosure is directed to a solution for mobile payment codes (e.g., two-dimensional codes or other payment codes) that are forwarded to other users for consumption by screen shots, photographs, or recordings.
According to a first aspect of the present disclosure there is provided a ticket checking apparatus comprising: a near field communication module configured to communicate data with a mobile device by near field communication; the camera is configured to scan the image in the induction area at a spatial frequency so as to perform spatial frequency pairing verification by using the Moire principle; wherein, after the ticket validator mates with the mobile device through near field communication and establishes a near field communication connection, the ticket validator generates a spatial frequency pair comprising a display spatial frequency Fa and a parsing spatial frequency Fb, which can be mated based on a moire principle; and sending the display space frequency Fa to the mobile equipment through the near field communication, and distributing the analytic space frequency Fb to a photosensitive element of the camera.
According to a second aspect of the present disclosure, there is provided a mobile device comprising: a near field communication module configured to communicate data with a ticket validator via near field communication; a display screen configured to display a moire pay code generated by a moire client; and a moire client configured to generate a pay code of a moire having a presentation space frequency Fa on the display screen based on ticket data associated with purchased electronic tickets upon receiving the presentation space frequency Fa from a ticket validator through the near field communication.
According to a third aspect of the present disclosure, there is provided a system for mobile payment anti-copy screen, comprising: the ticket validator of the first aspect; and a mobile device as in the second aspect.
According to a fourth aspect of the present disclosure, there is provided a method of mobile payment anti-copy screen, comprising: pairing, at a ticket validator, the mobile device and the ticket validator for near field communication; the ticket checking machine generates a spatial frequency pair comprising a display spatial frequency Fa and a analytic spatial frequency Fb, wherein the display spatial frequency Fa and the analytic spatial frequency Fb can be paired based on a moire principle, and then the display spatial frequency Fa is sent to the mobile device through the near field communication, and the analytic spatial frequency Fb is distributed to a photosensitive element of the camera; upon receiving the presentation spatial frequency Fa from the ticket validator via the near field communication, the mobile device generates a payment code for a mole pattern having the presentation spatial frequency Fa on a display screen of the mobile device based on ticket data associated with purchased electronic tickets in a mole pattern client; the camera of the ticket validator scans with the resolved spatial frequency Fb to capture the payment code with the moire of the exhibition spatial frequency Fa displayed on the display screen of the mobile device, and pairs the exhibition spatial frequency Fa and the resolved spatial frequency Fb to synthesize and verify a complete payment code using moire principle.
According to a fifth aspect of the present disclosure, there is provided a method of generating a moire-bearing pay code at a mobile device, the method comprising: receiving the presentation space frequency Fa from the ticket validator by near field communication; a payment code having a moire exhibiting the spatial frequency Fa is generated on the display screen based on ticket data associated with the purchased electronic ticket.
According to a sixth aspect of the present disclosure there is provided a method of validating a paycode having moire at a ticket validator, the method comprising: after the ticket checking machine and the mobile device are paired through near field communication and a near field communication connection is established, the ticket checking machine generates a spatial frequency pair comprising a display spatial frequency Fa and a analytic spatial frequency Fb, wherein the display spatial frequency Fa and the analytic spatial frequency Fb can be paired based on a Moire principle, the display spatial frequency Fa is sent to the mobile device through the near field communication, and the analytic spatial frequency Fb is distributed to a photosensitive element of a camera; the camera scans with the analytic spatial frequency Fb to capture the payment code with the moire of the exhibition spatial frequency Fa from the mobile device, and pairs the exhibition spatial frequency Fa and the analytic spatial frequency Fb to synthesize and verify the complete payment code by using moire principle.
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
Drawings
Fig. 1 is an example environment in which a conventional user uses a gate to check a ticket.
FIG. 2 is an example system block diagram of an improved gate according to one embodiment of this disclosure.
Fig. 3 is an example system block diagram of a cell phone according to one embodiment of this disclosure.
Fig. 4 is a pay code anti-copy scheme according to one embodiment of the present disclosure.
Fig. 5 is an example data structure of train ticket ticketing data, according to one embodiment of the present disclosure.
Detailed Description
In traditional electronic ticketing, in the process of using a payment code as an electronic ticketing certificate, a user can directly forward the payment code of the electronic ticket to other people by using a communication tool or copy a payment code picture to other people by using screen recording software so as to realize ticket checking by other people. This results in the problem of ticket rewinding, theft, etc. of electronic tickets that use payment codes.
In the following embodiments, two-dimensional codes are mainly used as an example of electronic bill, but it should be understood that other electronic payment codes, such as digital passwords, links, bar codes, and other forms of payment codes, can be used as examples of payment codes, and the most commonly used two-dimensional codes are used as examples herein.
There are some techniques that have been used to avoid the problem of electronic tickets for mobile payments being resale. For example, taking a train ticket as an example, current network ticketing systems all require real-name purchasing, that is, an electronic ticket is bound with an identity card of a purchaser, and only a user with the identity card can successfully log on the train by using the electronic ticket. However, the technique can be easily broken by notifying the cattle of the identification information in advance when the cattle are instructed to purchase the ticket.
Another common two-dimensional code anti-copying scheme for solving the above problems is a dynamic two-dimensional code generation technology, namely, a validity period (for example, one minute) is set for each two-dimensional code, and once the validity period is exceeded, the two-dimensional code automatically fails, so that malicious transmission of the two-dimensional code can be expected to be stopped. However, the technology cannot completely stop the ticket pouring action of the cattle, because the cattle can contract with the purchaser, the purchaser immediately sends the two-dimension code to the ticket purchaser through photographing, screenshot or screen recording software when the purchaser is just at the ticket checking gate, so that the purchaser can perform code brushing verification within the valid period of the two-dimension code. On the other hand, the dynamic two-dimension code technology is difficult to realize real-time dynamic refreshing of the two-dimension code in an environment without a network.
Another two-dimensional code anti-copying scheme is mentioned in a patent application named anti-photographing auditing method and device of Hua-into company, in the scheme, firstly, the screen of a terminal device is divided into areas, the divided areas are grouped, and the divided areas comprise at least two groups of grouping areas; then, coding the divided areas in the screen by adopting coding rules and setting coding marks, wherein the coding marks are used for auditing photos acquired through the screen, and the coding rules comprise dividing the divided areas of the screen and dividing modes of the divided areas; then, the divided areas in the screen are displayed in groups, and the group display includes alternate display in a group manner according to the areas. However, the solution also has drawbacks: grouping and alternately displaying the screens by area can only solve the anti-photographing problem, and if screen synchronization software is used, the screen can still be disguised as a cheating gate ticket checking.
The payment problem described above on the basis of two-dimensional code payment is also present in other payment methods, for example, the digital authentication code for payment, the payment link or the bar code may be optionally transmitted to other users for authentication.
Therefore, there is a need to be able to eliminate the need to consume by forwarding screenshots, photographs or copies of mobile payment codes (e.g., two-dimensional codes or other payment codes) to avoid such actions as ticket rewinding, theft, etc. To address the above-described issues with pay codes, the scheme of the present disclosure exploits the "moire" beat principle. First, the following "mole patterns" are recognized: if the spatial frequency of the pixels of the photosensitive element of the digital camera is close to the spatial frequency of the fringes in the image, water wave-like fringes, i.e. moire, are produced. Moire is an manifestation of the beat principle, mathematically speaking, the superposition of two close-frequency constant-amplitude sine waves, the amplitude of the composite signal will vary according to the difference between the two frequencies. The beat principle is also suitable for the superposition of stripes with slightly different spatial frequencies, and the beat can be formed due to the gradual deviation of the interval difference and the superposition position of the stripes. In other words, when an image of moire having a spatial frequency Fa is displayed on a screen, there is necessarily a spatial frequency Fb which can be matched to cancel out the moire among the spatial frequencies of the photosensitive element pixels of the camera, which is an optical beating principle of the moire. The present disclosure provides a mechanism for matching a spatial frequency Fa of a mobile device screen with a spatial frequency Fb of a camera by using a moire beat principle to realize a pay code anti-copying mechanism.
Referring first to FIG. 1, an example application environment of the present disclosure is shown. As shown, the user A walks to the ticket checking channel of the gate 1 and takes out the mobile phone to pass through the gate. In the prior art, after purchasing an electronic ticket, only a real two-dimensional code containing ticket authentication information is displayed on a mobile phone screen. Although the two-dimensional code can be refreshed every minute by using the dynamic two-dimensional code technology, the conventional gate cannot prevent the user a from passing the verification as long as the user a can obtain the latest two-dimensional code (copied by means of screen capturing, photographing, screen recording and the like) from, for example, a cattle holding a large number of electronic tickets in a sufficiently short time (for example, within one minute) and display the latest two-dimensional code to the gate camera for scanning. Therefore, the existing anti-screen-copying technology of the payment code cannot prevent the possibility that the cattle copy and spread the two-dimensional code through various technical means.
To address the above-described issues, the present disclosure provides a novel pay code (e.g., two-dimensional code) anti-copy scheme using an improved mobile device and ticket validator.
As shown in fig. 2, the present disclosure provides a near field communication module 20 for a gate 2 and upgrades a camera 22 compared to a conventional gate. The near field communication module supports data communication between a gate and a mobile device (e.g., a cell phone). Typical near field communication modules include bluetooth, NFC, RFID, and infrared, as well as other near field communication technologies, but any other technology that can exchange data in close proximity to each other can be used by the present disclosure as near field communication. A bluetooth communication module is illustrated in the following example as an example of a near field communication module. The near field communication module can perform conventional data exchange with the mobile phone, and can also provide a spatial frequency Fa (for convenience of explanation, the frequency Fa is called as a display spatial frequency Fa) for the mobile phone, wherein the spatial frequency Fa can be received by the mobile phone and forms a Moire two-dimension code for displaying on a screen of the mobile phone through a Moire client on the mobile phone. The Moire two-dimensional code is a rasterized two-dimensional code with part of two-dimensional code information hidden. For the camera 22 of the gate 2, compared with the conventional camera, the pixels of the photosensitive element of the camera can support scanning and identification according to a specific spatial frequency Fb (for convenience of explanation, the frequency Fb is referred to as an analysis spatial frequency Fb, and the analysis spatial frequency Fb is paired with the display spatial frequency Fa), so as to synthesize a complete real consumption two-dimensional code from the moire two-dimensional code by using the moire beat principle through the pairing of the display spatial frequency Fa and the analysis spatial frequency Fb, and then, the complete two-dimensional code is verified by the gate 2 to complete ticket checking. However, it should be understood that the gate is only one example of a ticket validator for validating electronic ticket services, and that in fact, there are various other ticket validators, such as hand-held ticket validators, cell phones, mobile POS machines, PDAs, notebooks, etc., which also have components such as cameras and communication modules, etc., which can be used as ticket validators by making corresponding upgrades thereto. Thus, it should be understood that the solution of the present disclosure is actually described only with the gate as an example of a ticket validator, and not just the solution is limited to the context of gate ticket validators.
In fig. 3, an example system block diagram of a cell phone according to one embodiment of this disclosure is disclosed. As shown, the handset has a near field communication module 30, a moire client (module) 32, and a display screen 34. The near field communication module 30 may be paired with the near field communication module 20 of the gate 2 in fig. 2 to implement near field communication, and similarly, may also be implemented using bluetooth, NFC, RFID, infrared, and other technologies. In this example, a bluetooth communication module is illustrated as an example of the near field communication module 30. After purchasing the electronic ticket, the handset may store the received ticket data in the moire client 32. Thus, when ticket checking is started at the gate 2, the handset obtains the display spatial frequency Fa from near field communication with the gate 2 through the near field communication module 30. Subsequently, the moire client 32 may generate a two-dimensional code having a moire of the display space frequency Fa, which is a rasterized two-dimensional code in which a part of two-dimensional code information is hidden, on the display screen 34 based on ticket data and the display space frequency Fa obtained from the gate 2. It is well known that the handset also contains other components that can be used with the conventional hardware of the handset, and are not described in detail herein. It should be noted that although in this disclosure, a mobile phone is mainly described as an example of a mobile device, it should be understood that the mobile device is not limited to a mobile phone, but may be other mobile computing devices, such as a PDA, tablet, netbook, smartwatch, smartband, etc. These devices all have a communication module and a display screen, and by installing the moire client thereon, they can be upgraded to mobile devices that can be used for ticket checking.
Having appreciated the improvements in ticket validators and mobile devices, the pay code anti-copy screen scheme of the present disclosure is illustrated in detail in FIG. 4, in which a cell phone, gate 2, and two-dimensional code are illustrated as examples of mobile devices, validators, and pay codes, respectively. It should be appreciated that other various examples may implement the pay code anti-copy scheme.
First, at step 410, a user purchases various electronic tickets (e.g., a train ticket, a concert ticket, etc. on a website supporting the aspects of the present disclosure) through a normal purchase procedure on a payment website. The use of the electronic ticket requires ticket checking through a gate. After the user pays the relevant fee, unlike the conventional method of directly transmitting a payment code (e.g., a payment digital password, a link, a bar code, a two-dimensional code, etc., in this example, the most commonly used two-dimensional code is taken as an example of the payment code) to a mobile device (e.g., a mobile phone) designated by the user, in the present disclosure, a genuine consumption two-dimensional code (i.e., an electronic ticket) is not directly provided to the client, but only bill data for generating the genuine consumption two-dimensional code is transmitted to a specific client (i.e., a moire client 30) in the mobile phone of the user to be stored therein. The moire client may have a special security mechanism to ensure that the ticket data is not accidentally revealed. For example, only a record containing public information such as the number of times, time, seat, and price of a ticket purchased by a user may be referred to on the moire client, but in addition to this, the user cannot obtain any data related to the electronic ticket verification. Such client ticket data security mechanisms may be implemented using any known data security techniques, such as data encryption, controlling data access rights, and the like. Because the user can not receive the real consumption two-dimensional code and can not extract any ticket verification data from the mole line client, the possibility that the user immediately forwards the electronic ticket to other people after buying the electronic ticket is eliminated.
An example of a ticket data structure associated therewith is illustrated in fig. 5 by way of example only with a train ticket. The ticket data has twelve fields, and various data related to the generation of the consumption two-dimensional code are defined in each field. Since this data structure has been widely adopted (e.g., this example is the bill data example adopted on the 12306 website), it will not be described in detail here. It should be appreciated that this data structure is merely one example of ticketing data, and that other ticketing data may have more, fewer, or different data fields.
After the moire client 30 on the user's phone receives ticket data, the user can go to the gate 2 before verification. In step 420, the user goes to the gate, opens the near field communication function (e.g. bluetooth function) of the mobile phone and places the mobile phone in the sensing area of the near field communication module 20 of the gate 2, and the gate 2 recognizes the mobile phone and completes bluetooth pairing to establish the near field communication connection. The bluetooth pairing may employ conventional bluetooth pairing techniques, which are not described in detail herein.
In step 430, the sluice 2 generates and allocates a pair of spatial frequencies, i.e. a display spatial frequency Fa and a parse spatial frequency Fb, which are paired with each other. Only after the display space frequency Fa and the analysis space frequency Fb are successfully paired to obtain the real consumption two-dimensional code and the ticket checking of the real consumption two-dimensional code is successful, the gate 2 can let the user pass. Subsequently, the gate 2 may transmit the presentation spatial frequency Fa to the moire client 30 of the mobile phone through bluetooth communication, and transmit the resolution spatial frequency Fb to the camera 22 of the gate 2 to configure the camera 22 to scan the image within its sensing area with the resolution spatial frequency Fb.
In the scheme, the pair of display spatial frequency Fa and analysis spatial frequency Fb is a pair generated randomly, that is, when ticket checking is required, the gate 2 generates randomly a pair of display spatial frequency Fa and analysis spatial frequency Fb capable of performing mole pattern pairing to perform ticket checking. This mechanism avoids the leakage problem that may exist with the fixed use of a certain set or sets of said presentation spatial frequency Fa and analysis spatial frequency Fb pairs, thereby providing a safer ticket checking mechanism.
In addition, in some preferred embodiments, in order to provide better security, the display spatial frequency Fa and the analysis spatial frequency Fb may be dynamically generated by the gate 2 in real time, and have a certain validity period (for example, one minute), that is, if the mobile phone ticket checking is not completed within one minute, the gate 2 will refresh a new pair of spatial frequencies Fa and Fb. At this time, since the camera of the gate 2 has been configured to the new analysis spatial frequency Fb, even if the moire two-dimensional code synthesized by the old presentation spatial frequency Fa is displayed on the screen of the user's mobile phone, the moire two-dimensional code cannot be recognized by the camera, and verification may fail.
In step 440, after the moire client 30 on the user's mobile phone receives the display space frequency Fa transmitted by the gate 2 through bluetooth communication, the moire client generates a moire two-dimensional code with the display space frequency Fa on the screen of the mobile phone based on the ticket data previously obtained stored therein. The generated two-dimensional code is rasterized by the mole patterns generated by the spatial frequency Fa, so that partial information of the two-dimensional code is lost and cannot be read. Note that the rasterization does not process the bottom data of the two-dimensional code, but skillfully "masks" a part of information of the two-dimensional code on a screen by using moire by utilizing an optical principle. At this time, if the user tries to capture, photograph or record the mole pattern two-dimension code on the mobile phone screen and forward the code to other users, on one hand, the mole pattern two-dimension code which is rasterized lacks all bill information, so that the code cannot be successfully decoded; on the other hand, the moire in the moire two-dimensional code is generated by the display space frequency Fa of the gate 2, and can be successfully paired only with the analysis space frequency Fb of the camera of the gate 2, while the analysis space frequency Fb 'supported by the cameras of other gates is different from the analysis space frequency Fb of the gate 2, so that the moire two-dimensional code cannot be successfully paired with the analysis space frequency Fb' of any other gate except the gate 2. Therefore, it is meaningless to forward such a mole pattern two-dimensional code to other users located elsewhere. If the user is a cattle, in order to ensure that other users can check the ticket successfully, the user must run to the gate 2 where the other users are located in person, receive the display space frequency Fa by using the own mobile phone to generate the mole pattern two-dimension code, and scan the mole pattern two-dimension code by the camera of the gate 2 with the analysis space frequency Fb to finish the verification. This in-person arrival is catastrophic for the cattle, greatly increasing his resale costs. In particular, when the space frequency of the gate 2 has a short validity period (for example, one minute or even shorter) for Fa and Fb, since the large number of mole marks two-dimensional codes forwarded by the cow will all fail immediately within, for example, one minute, this requires that the cow and all users must be present at the same time to check the ticket, thus making batch ticket pouring a task for yellow Niu Lai substantially impossible. This can substantially eliminate the phenomenon of forwarding mobile payment codes.
After the two-dimensional code with the moire pattern showing the spatial frequency Fa is generated on the mobile phone screen of the user, the user should show the moire two-dimensional code on the screen in the sensing area of the camera 22 of the gate 2 as soon as possible (i.e. within the validity period of the spatial frequency pair Fa and Fb, for example, within one minute) in step 450. At this time, the camera 22 scanning with the analysis spatial frequency Fb captures the moire two-dimensional code, and since the analysis spatial frequency Fb scanning is paired with the display spatial frequency Fa of the moire two-dimensional code, the part of the moire two-dimensional code, which is lost by the moire of the display spatial frequency Fa, can be found back again by the "de-blocking" effect of the paired analysis spatial frequency Fb on the moire by using the moire principle (i.e. the lost information is complemented), so that the complete two-dimensional code is synthesized. In this way, the camera 22 of the gate 2 can read the complete two-dimensional code and decode ticket data (e.g. twelve fields of a train ticket as shown in fig. 5) therefrom for ticket verification. So far, the whole verification process is completed.
As can be appreciated from the above example scenario, the pairing of the spatial frequencies Fa and Fb ensures that the user who purchases the electronic ticket and finally uses the genuine two-dimensional code for ticket verification is located at the gate 2, and cannot use the genuine two-dimensional code instead by others who are not located at the gate 2, because the moire two-dimensional code transmitted to others is incomplete and cannot be restored by other gate pairing. Therefore, the common means for forwarding the copied two-dimensional codes such as screen capturing, photographing and screen recording are not used before the scheme of the present disclosure, so the scheme well solves the problem of copy prevention of the payment code. Moreover, for the gate, only one near field communication module is needed to be additionally arranged (part of the latest gate is actually provided with the near field communication module), and the camera is upgraded downwards, and the scheme of the present disclosure can be realized by only installing the Moire client, so that the fast upgrade can be smoothly and quickly realized without spending excessive funds for vast enterprises and equipment manufacturers. Therefore, the method has wide application prospect. For example, the gate described in the present disclosure may be installed in all scenes where gate ticket checking is required, such as subway stations, railway stations, airports, theatres, movie theatres, exhibition halls, attractions, amusement parks, etc.
It should be noted that, in the embodiment of the present disclosure, although the two-dimensional code is described in detail as an example, it should be understood that the embodiment is merely illustrative, and is not intended to limit the scheme of the present disclosure to the two-dimensional code field, and in fact, other payment codes can also be applied to the scheme of the present disclosure, for example, a moire client may generate a digital verification code of a masked part number, a payment connection of a masked part letter, or a bar code of a masked part stripe, and then restore to a complete payment code by the camera of the gate 2 using the moire principle.
In addition, it should be noted that the moire used in the present disclosure is not necessarily a grid stripe, and in fact, the moire of other patterns may be used in the scheme of the present disclosure, as long as the mask portion generated by the display spatial frequency Fa can be reduced by the paired analysis spatial frequency Fb, such as a diagonal stripe, a horizontal stripe, and the like.
In other embodiments, the payment code with mole patterns can be used for various ticket verification, and can be applied to other scenes where ticket verification is required, for example, after a user robs a preferential commodity through a website, the user takes the preferential commodity from an online store. In order to ensure that the real user obtains merchant offers instead of cheap cattle, the user who needs to purchase the offered goods and the on-site pick-up are the same person. The schemes of the present disclosure may also be used in such a scenario. Specifically, after the user purchases the preferential commodity, a purchase bill (instead of a two-dimension code) can be sent to a mole pattern client of a user mobile phone of the user, when the user arrives at an off-line store, near field communication is established between the mobile phone and a ticket checking machine such as a handheld POS machine modified by a merchant, then after receiving the display space frequency Fa sent by the ticket checking machine, a corresponding mole pattern two-dimension code is generated by the mole pattern client of the mobile phone, the mole pattern two-dimension code is displayed on a mobile phone screen and is placed in a camera sensing area of the ticket checking machine, the mole pattern is removed by a camera after scanning and pairing through the analysis space frequency Fb so as to obtain a real two-dimension code, and finally the real two-dimension code is verified. In this way, it is ensured that the user purchasing the goods is maximally authenticated on-site. It can be seen that the scheme of the present disclosure can be widely applied to various scenes requiring authentication of a real user, and will not be described here.
While various embodiments have been described above, it should be understood that they have been presented by way of example only, and not limitation. It will be understood by those of ordinary skill in the relevant art(s) that various changes in form and details may be made therein without departing from the spirit and scope of the present disclosure as defined by the following claims. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
Claims (16)
1. A ticket checking apparatus, comprising:
a near field communication module configured to communicate data with a mobile device by near field communication; and
the camera is configured to scan the image in the induction area at a spatial frequency so as to perform spatial frequency pairing verification by using the Moire principle;
wherein after the ticket validator mates with the mobile device through near field communication and establishes a near field communication connection, the ticket validator generates a spatial frequency pair including a presentation spatial frequency Fa and a parsing spatial frequency Fb, which can be mated based on a moire principle, wherein the presentation spatial frequency Fa is transmitted to the mobile device through the near field communication and the parsing spatial frequency Fb is allocated to a photosensitive element of the camera.
2. A mobile device, comprising:
a near field communication module configured to communicate data with a ticket validator via near field communication;
a display screen configured to display a moire pay code generated by a moire client; and
a moire client configured to generate a payment code having a moire of the display space frequency Fa on the display screen based on ticket data associated with purchased electronic tickets upon receiving the display space frequency Fa from a ticket validator through the near field communication.
3. A system for mobile payment anti-copy, the system comprising:
the ticket validator of claim 1; and
the mobile device of claim 2.
4. A method for mobile payment anti-copy screen, the method comprising:
pairing, at a ticket validator, a mobile device and the ticket validator for near field communication;
the ticket checking machine generates a spatial frequency pair comprising a display spatial frequency Fa and a analytic spatial frequency Fb, wherein the display spatial frequency Fa and the analytic spatial frequency Fb can be paired based on a moire principle, and then the display spatial frequency Fa is sent to the mobile device through the near field communication, and the analytic spatial frequency Fb is distributed to a photosensitive element of a camera;
upon receiving the presentation spatial frequency Fa from the ticket validator via the near field communication, the mobile device generates a payment code for a mole pattern having the presentation spatial frequency Fa on a display screen of the mobile device based on ticket data associated with purchased electronic tickets in a mole pattern client;
the camera of the ticket validator scans with the resolved spatial frequency Fb to capture the payment code with the moire of the exhibition spatial frequency Fa displayed on the display screen of the mobile device, and pairs the exhibition spatial frequency Fa and the resolved spatial frequency Fb to synthesize and verify a complete payment code using moire principle.
5. The method of claim 4, wherein in the paycode having the moire of the presentation space frequency Fa, a part of data is lost on a display screen due to occlusion of the moire.
6. The method of claim 4, wherein the presentation spatial frequency Fa and the parsing spatial frequency Fb are dynamically generated in real time and have a validity period.
7. The method of claim 4, wherein the moire client has a security mechanism to ensure that ticket data stored therein is not compromised.
8. The method of claim 4, wherein the payment code is a two-dimensional code.
9. The method of claim 4, wherein the payment code may be a digital password, a link, a bar code, and other forms of payment codes.
10. The method of claim 4, wherein the near field communication may be bluetooth communication.
11. The method of claim 4, wherein the near field communication may be NFC, RFID, infrared, and other forms of near field communication.
12. The method of claim 4, wherein the moire pattern is a grid pattern or other pattern.
13. The method of claim 4, wherein the ticket validator is a gate or other ticket validator.
14. The method of claim 4, wherein the mobile device is a cell phone or other mobile device.
15. A method for generating a paycode with mole patterns, which is applied to a mobile device as claimed in claim 2, and comprises the following steps:
receiving a presentation spatial frequency Fa from a ticket validator by near field communication, the presentation spatial frequency Fa being randomly generated by the ticket validator;
a payment code having a moire exhibiting the spatial frequency Fa is generated on the display screen based on ticket data associated with the purchased electronic ticket.
16. A method of verifying a paycode having moire at a ticket validator, the method comprising:
after the ticket checking machine and the mobile device are paired through near field communication and a near field communication connection is established, the ticket checking machine generates a spatial frequency pair comprising a display spatial frequency Fa and a analytic spatial frequency Fb, wherein the display spatial frequency Fa and the analytic spatial frequency Fb can be paired based on a Moire principle, the display spatial frequency Fa is sent to the mobile device through the near field communication, and the analytic spatial frequency Fb is distributed to a photosensitive element of a camera;
the camera scans with the analytic spatial frequency Fb to capture the payment code with the moire of the exhibition spatial frequency Fa from the mobile device, and pairs the exhibition spatial frequency Fa and the analytic spatial frequency Fb to synthesize and verify the complete payment code by using moire principle.
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