WO2017128982A1 - 一种基于光标签的信息交互系统及方法 - Google Patents

一种基于光标签的信息交互系统及方法 Download PDF

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Publication number
WO2017128982A1
WO2017128982A1 PCT/CN2017/071296 CN2017071296W WO2017128982A1 WO 2017128982 A1 WO2017128982 A1 WO 2017128982A1 CN 2017071296 W CN2017071296 W CN 2017071296W WO 2017128982 A1 WO2017128982 A1 WO 2017128982A1
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Prior art keywords
information
mobile terminal
optical tag
image
signal unit
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PCT/CN2017/071296
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English (en)
French (fr)
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王晓东
方俊
李江亮
苏爱民
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西安小光子网络科技有限公司
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G06K7/1404—Methods for optical code recognition
    • G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
    • G06K7/1417—2D bar codes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/1141—One-way transmission

Definitions

  • the invention relates to a method for online payment of retail commodities, in particular to a method for fast payment of mobile devices.
  • the information connection between the demander and the supplier is usually established by using two-dimensional code technology or wireless identification, but the two-dimensional code
  • the method has a short recognition distance, which is characterized by low recognition distance and codeword pattern size, and the stored information is relatively rigid and limited in information capacity.
  • the radio signal recognition is far away, its directivity is poor, and there may be multiple target areas.
  • the target can be used, and the targeting cannot be specified; thus, the target information acquisition requirement at a long distance cannot be satisfied, and the usage requirement cannot be satisfied in the consumer shopping, information acquisition, and information transmission.
  • the present invention provides an optical tag-based information interaction system and an interaction method with strong directionality, long recognition distance, and large information capacity.
  • An optical tag-based information interaction system comprising an optical tag for information coding, a data server for providing information, a mobile terminal for decoding information and connecting to a data server, and a mobile terminal and a data server for connecting
  • the optical communication network includes: a signal unit and a positioning identifier; the signal unit includes a plurality of independently blinking lighting units, and the positioning identifier comprises a plurality of synchronously blinking lighting units, wherein the lighting area of the positioning unit is larger than the signal unit a light-emitting area of the middle light-emitting unit; information content transmitted by the flicker coding of the light-emitting unit; the mobile terminal includes an image capture device and an image processing module, the image capture device is configured to collect a coded image of the light tag, and the image processing module is configured to Encoded image for decoding; mobile terminal according to decoded information Connect data server interaction information over a wireless communication network.
  • the light emitting units in the signal unit are arranged in a matrix.
  • the positioning identifier includes at least three lighting units that are not on the same straight line, and the lighting units of the positioning identifier are disposed adjacent to the outside of the signal unit.
  • the mobile terminal uses a smart phone, a tablet computer and smart glasses.
  • An information interaction method using the optical tag-based information interaction system according to the present invention includes the following steps:
  • Step 1 encoding the information to be transmitted by the blinking order and the frequency of each lighting unit in the setting signal unit, and encoding the period of information transmission by setting the blinking order and frequency of all the lighting units in the positioning identifier. ;
  • Step 2 When the information is required, the mobile terminal continuously collects the image generated when the optical label is blinking through the image acquisition module in a time period that is not shorter than the information transmission period, and obtains the information transmitted by the optical label by decoding the image;
  • Step 3 The mobile terminal connects to the data server via the wireless communication network according to the information obtained after decoding, and realizes interaction between the demand and the supply information.
  • step 1 when the signal unit in the optical tag is encoded, the light-emitting matrix of the k-row and l-column in the signal unit is used.
  • Any of the light-emitting units c ij represents one-bit binary or multi-ary data encoding the transfer information, where c ij ⁇ 0,1,...,N ⁇ , N corresponds to N-ary, 0 ⁇ i ⁇ l,0 ⁇ j ⁇ k, k and l are both positive integers.
  • the change of the two states of the light-emitting unit is taken as 1 or 0 in the digital transmission signal, or the change of the plurality of colors is used as a plurality of states of the digital transmission signal, or the change of the combination of light and dark and color is used as the digital transmission signal.
  • Status is taken as 1 or 0 in the digital transmission signal, or the change of the plurality of colors is used as a plurality of states of the digital transmission signal, or the change of the combination of light and dark and color is used as the digital transmission signal.
  • step 2 when decoding an image generated when the optical label optical label is blinking, the following steps are included.
  • the mobile terminal continuously collects the signature images generated by the cursor flickering for a period of time according to its natural frequency, for a total of m frames, each frame is recorded as: f 0 , f 1 , ..., f m , and the acquisition time is not less than the signal transmission period T;
  • the light-emitting unit in each signal unit is assigned a value in each frame, and then the data of the corresponding frame is decoded; the information transmission period and the start of information transmission are determined by decoding the transformation of the position identification state. And sequentially decoding each frame of data in the information delivery period to obtain encoded delivery information.
  • the present invention has the following beneficial technical effects:
  • the invention realizes the information interaction between the mobile terminal and the data server under the support of the wireless communication network through the setting of the optical tag and the cooperation with the mobile terminal cooperated with it; the optical tag transmits the information through the illumination and the flicker, thereby being able to satisfy Its directional requirements, and greatly improve the recognition distance, can reach the kilometer level, and greatly improve the coding capacity, so as to better meet the information transmission needs.
  • the system structure is simple, the interaction method is convenient to implement, and is suitable for commercial transactions, online payment, catering ordering, etc., and has a wide application range.
  • FIG. 1 is a diagram of an application scenario described in an example of the present invention.
  • FIG. 2 is a flow chart of an application method described in an example of the present invention.
  • Figure 3 is a flow chart of the decoding described in the example of the present invention.
  • FIG. 4 is a diagram showing an example of an optical tag described in an example of the present invention.
  • FIG. 5 is an identified positioning identifier according to an example of the present invention.
  • Figure 6 is a region division of signal units in an example of the present invention.
  • FIG. 7 is a light-emitting matrix corresponding to a signal unit according to an example of the present invention.
  • the optical tag-based information interaction system and method according to the present invention is applied to fast payment of remote orientation recognition.
  • the specific system includes a data server, an optical tag, a mobile terminal and a wireless communication network storing the merchant information.
  • the data server provides data on merchant online shopping and related products.
  • the optical tag includes two parts: a signal unit 5 as a data bit and a positioning identifier 6 as a flag bit, wherein the positioning identifier is three large rectangular frames in the figure, and the three rectangular frames are called a group.
  • the positioning identifier is synchronously flashed at a certain frequency in the working state, and the image difference method can be quickly detected by the camera device, and the position of the signal unit can be determined by the positioning identifier, thereby performing data identification and reading;
  • the signal unit is a rectangular black and white small square between the positioning marks, and a plurality of signal units form a group.
  • the light emitting units in the signal unit form a 5 ⁇ 5 array, and each of the light units represents “0” or “digital signal”. 1"
  • the matrix composed of the entire illuminating unit group constitutes a digital signal sequence of one frame, and the side length of the preferred identification bit is twice the side length of the data bit, which is more convenient for positioning, in order to increase the data space represented by the signal unit, under working condition
  • Each signal unit can also be flashed according to a predetermined program, so that more signal content is displayed through multiple frames, which requires more A start frame/end identification frame is provided for calibrating the start/end position of a full cycle of the multiframe.
  • the frame signal unit group is set to a special data combination, such as: all 0s or all 1s or any no A special combination that differs from the information that may actually be expressed.
  • the mobile terminal refers to a smart mobile device with a shooting function, including a mobile phone, a tablet computer, smart glasses, etc.
  • the recognition distance of the above optical tag is calculated as follows.
  • Distance actual size of object ⁇ device focal length / (number of object imaging pixels ⁇ CCD pixel unit size).
  • the parameters of the device are as follows:
  • optical tag signal unit 2 ⁇ 2 mm, 2 ⁇ 1.414 (diagonal);
  • Optical tag positioning identification actual size 4 ⁇ 4mm, 4 ⁇ 1.414 (diagonal);
  • the mobile terminal collects the long-distance optical tag identification data for obtaining the online product sales network address and the transaction-related information of the merchant; and using the obtained information, the data server communicates with the mobile terminal to deliver the commodity for sale. Information and payment information.
  • Step 1 The merchant sets up a light label that can be remotely and directionally identified by the mobile terminal at the sales location, and the optical label broadcasts or displays the identification content through the light divergence to the space;
  • the label identification content at least includes: the merchant network sales server address, the merchant product type , merchant geospatial location, merchant business hours, business phone number, local real-time time;
  • optical tags include illumination sources, control circuits, and batteries or power supplies, wherein the illumination sources can use various illumination technologies, such as using LED lights, depending on The usage requirements, the number of illumination sources can be one or more, and the control circuit is used to control The frequency and flicker of the light source of the light source, the battery and the power source provide energy for the control circuit and the light source, and the light source expresses the label identification content by the characteristics of the light emitted during a period of time, such as wavelength, intensity, frequency, etc.;
  • the method of encoding the optical tag of the tag identification content is:
  • the positioning identifier and the signal unit flash at a frequency of 1/n second, and n is a positive integer;
  • the encoding method of the signal unit group is: corresponding to the k ⁇ l light-emitting matrix of the signal unit shown in FIG. Where k, l are positive integers, arbitrary signal elements c ij ,c ij ⁇ 0,1 ⁇ , 0 ⁇ i ⁇ l,0 ⁇ j ⁇ k, representing one-bit binary data, ⁇ c 00 ,...,c
  • the set of ij , . . . , c lk ⁇ constitutes a code group according to a specified sequence.
  • the coding space is: 2 k ⁇ l ; if the coding is in time series, the coding space is T ⁇ 2 k ⁇ l , and T is a complete sequence period frame number, T is Natural number; optical label can also be a combination of a plurality of color blocks, forming an array by color block shading, and different light and dark color blocks represent 0, 1, ..., N, N of the digital signal corresponding to N-ary, representing color blocks The number of states that can be represented by the change of light and dark; the encoding method is the same as above.
  • Step 2 The user discovers the optical label through the naked eye within a range of distance from the optical label. If the user needs to purchase the product, the mobile terminal aligns the optical label, scans the optical label, and the mobile terminal performs information capture and interpretation processing; the mobile terminal The video acquisition frequency is greater than or equal to 2 times of the optical tag frequency. The video and image information captured in the camera of the mobile phone are collected, and the image frame is transmitted to the memory of the mobile phone and the processor performs a decoding operation to complete the process of identifying and decoding;
  • the process of identifying and decoding is as shown in FIG. 5 and FIG. 6.
  • the camera of the mobile terminal device continuously collects the image of the optical tag device for a period of time according to its natural frequency, for a total of m frames, and each frame is recorded as: f 0 , f 1 , . f m , where m is greater than a complete period T of the sequence of data frames played by the signal unit group; first, a difference is obtained for any two adjacent frames, and a difference map is obtained, and three groups appearing in the difference map are found If the location identifier is not found, or if there is a set of such features, then the two adjacent frames are re-selected for discovery until the location identifier group is found.
  • FIG. 5 is a difference graph, which can be found.
  • Three positioning identifiers according to the positional relationship between the data signal unit group and the positioning identifier in the structure of the optical label design, frame the signal unit group position in the image, and perform block division to find each corresponding signal
  • the pixel area corresponding to the unit, FIG. 6 is a graph for performing block division by locating the positional relationship between the identifier and the signal unit; If the signal unit is assigned, the data of the frame is obtained; since m>T, the encoded data obtained above is repeated, and it is stipulated that only the signal unit data of the first frame when the positioning identifier is converted is valid, so it can be from above.
  • T valid data is selected from the m coded data, and the remaining unqualified coded data is removed, and the data sent by the optical tag in step 2 is obtained, and then the selected code is input into the memory area of the processing program, and the acquisition is complete.
  • Step 3 After the scan identification succeeds, the obtained encoded result is decoded and decoded in the dictionary table, thereby obtaining the merchant network sales server address, the merchant product type, the merchant geospatial location, the merchant business hours, and the merchant telephone number contained in the tag data.
  • the information is displayed on the mobile terminal by using the obtained information; if the user needs to purchase the product of the merchant, the control control corresponding to the merchant website is operated, the address of the merchant network sales server is opened, and the product sales page is entered; Consistent with the usual network e-commerce sales page;
  • Step 4 After selecting the quantity of the goods and the goods in the sales page, the user initiates a product fee payment request, and the payment request is submitted to the merchant server through the network information channel; the merchant obtains the purchase request of the user through the server, and if the purchase behavior is compliant Receiving the user's payment and returning the payment success response, the response content includes a verification code C that is generated by the system and generated immediately by the system;
  • Step 5 After obtaining the payment success response, the user travels to the sales location, and the merchant begins to prepare the goods purchased by the user; the preparation process includes tally, pre-sale treatment (eg, heating, low temperature treatment, disinfection, classification, cutting, packaging) , placing goods to be picked up;
  • pre-sale treatment eg, heating, low temperature treatment, disinfection, classification, cutting, packaging
  • Step 6 When the user arrives at the vending window of the vending place, the merchant implements confirmation; the confirmation method is: the user presents the verification code C and the payment payment successfully generated by the payment sent by the merchant server in step 5. Number, the merchant compares the information presented by the user with the transaction information on the merchant server, and if it is consistent, the confirmation is successful, otherwise the delivery request is considered invalid;
  • Step 7 If the user receives the goods after confirming the pass, the transaction is completed.
  • the information interaction method of the invention is simple and reasonable, and can remotely operate and select a designated retailer through visual targets, and the retailer stocking and the user are close to each other, thereby greatly reducing the waiting time for shopping payment and reducing the demand for the business area of the physical store. .
  • the quick transaction method between the user and the merchant based on the above method, that is, the merchant picks up the goods after receiving the order, and the user approaches The goods are carried out in parallel, which effectively and significantly shortens the waiting time of the users, improves the shopping efficiency, and greatly reduces the storefront business area required by the merchants, thereby reducing the rent of the store.
  • the user 1 accesses the store 2 to purchase a number of bottled beverages in the store 2, and uses the method to quickly purchase and pay in the process of approaching the store 2, as shown in FIG. 2;
  • the left side of Figure 2 is the user 1 operation flow, and the right side is the store 2 operation flow, including the following steps.
  • Step 1 The store 2 sets up a light label 3 that can be remotely and directionally identified by the mobile terminal at the sales place.
  • Step 2 The user 1 finds the optical tag 3 by the naked eye at a distance of 280 meters from the tag, which happens to need to purchase a cup of hot beverage.
  • the user 1 uses the mobile terminal 4 to orient the optical tag 3, and scans the tag to use the mobile terminal 4 for information capture and interpretation.
  • the mobile terminal 4 needs to be installed with an intelligent mobile terminal operating system, has a camera, the video capture frequency of the camera is 120FPS, and the memory space is 1000M; the mobile terminal 4 collects 30 frames, and each frame is recorded as: f 0 , f 1 ,..., f 30 ; First, the difference difference graph is performed on two adjacent frames f 2 and f 3 , and three positioning identifiers appearing in groups are found in the difference map; the signal unit group is found according to the positioning identifier, and the corresponding group is found and correspondingly found.
  • the data content represented by a unit in one frame finds data of a period (f 6 , f 7 , f 8 , f 9 , f 10 , f 11 ), and obtains encoded data;
  • Step 3 After the scan is successfully identified, the obtained encoded result is decoded and decoded in the dictionary table, thereby obtaining and identifying www.mycafe.com, catering, AB block, 9:00-21:00, 88888, 12: 56:09 information; display on the display of the mobile terminal 4 obtained by the above information; open the address of the merchant network sales server, and enter the product sales page;
  • Step 4 The user 1 selects a cup of hot beverage selected in the page in the sales page, initiates a merchandise fee payment request through the online banking, and the payment request is submitted to the merchant server through the network information channel; the merchant receives the payment of the user and returns a payment success response.
  • the response content contains a random verification code 897548;
  • Step 5 After obtaining the payment success response, the user 1 travels to the vending place store 2, and the merchant starts to heat the beverage, add sugar, package, and arrange for the user 1 to pick up the goods;
  • Step 6 After 3 minutes, the user 1 arrives at the vending shop store 2 pick-up window, presents the random code 897548 and the payment payment number, and the merchant compares the information presented by the user with the transaction information on the merchant server, and passes the comparison. ;
  • Step 7 Delivery, transaction completed.

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Abstract

本发明提供一种定向性强，识别距离远，信息容量大的基于光标签的信息交互系统及交互方法。所述系统包括用于信息编码的光标签，用于提供信息的数据服务器，用于信息解码和连接数据服务器的移动终端，以及用于连接移动终端和数据服务器的无线通信网路；光标签包括信号单元和定位标识；移动终端包括图像采集装置和图像处理模块，图像采集装置用于采集光标签的编码图像，图像处理模块用于对编码图像进行解码；移动终端根据解码信息通过无线通信网络连接数据服务器交互信息。所述方法，包括如下步骤，步骤一，将供给信息进行编码；步骤二，需求信息时，利用移动终端对图像的解码得到光标签传递的信息；步骤三，解码后实现需求与供给信息的交互。

Description

一种基于光标签的信息交互系统及方法 技术领域
本发明涉及一种零售商品在线支付方法，具体为一种移动设备快速支付方法。
背景技术
当前，在基于移动终端的信息交互时，为了识别和对接各种信息平台目标时，通常使用二维码技术或无线识别的方式建立需求者和供给者之间的信息联系，但是二维码的方法存在识别距离近，具体表现为识别距离与码字图形尺寸比低，而且存储的信息较为死板，信息容量有限；无线电信号识别虽然距离远，但其指向性较差，目标区域可能存在多个可使用目标，无法定向指定；从而无法满足在远距离上的定向信息获取要求，无论在消费购物、信息获取以及信息传递上都无法满足使用要求。
发明内容
针对现有技术中存在的问题，本发明提供一种定向性强，识别距离远，信息容量大的基于光标签的信息交互系统及交互方法。
本发明是通过以下技术方案来实现：
本发明一种基于光标签的信息交互系统，包括用于信息编码的光标签，用于提供信息的数据服务器，用于信息解码和连接数据服务器的移动终端，以及用于连接移动终端和数据服务器的无线通信网路；所述的光标签包括信号单元和定位标识；信号单元包括若干独立闪烁的发光单元，定位标识包括多个同步闪烁的发光单元，定位标识中发光单元的发光面积大于信号单元中发光单元的发光面积；通过发光单元的闪烁编码传递的信息内容；所述的移动终端包括图像采集装置和图像处理模块，图像采集装置用于采集光标签的编码图像，图像处理模块用于对编码图像进行解码；移动终端根据解码信息 通过无线通信网络连接数据服务器交互信息。
优选的，信号单元中的发光单元呈矩阵排列。
优选的，定位标识至少包括不在同一直线上的三个发光单元，定位标识的发光单元相邻设置在信号单元外部。
优选的，移动终端采用智能手机、平板电脑和智能眼镜。
本发明一种采用如本发明所述基于光标签的信息交互系统的信息交互方法，包括如下步骤，
步骤一，将供给信息通过设定信号单元中每个发光单元的闪烁排序和频率对所要传递的信息进行编码，通过设定定位标识中所有发光单元的闪烁排序和频率对信息传递的周期进行编码；
步骤二，需求信息时，利用移动终端在不短于信息传递周期的时间内通过图像采集模块连续采集光标签闪烁时产生的图像，通过对图像的解码得到光标签传递的信息；
步骤三，移动终端根据解码后得到的信息，经无线通信网络与数据服务器连接，实现需求与供给信息的交互。
优选的，步骤一中，光标签中的信号单元编码时，以信号单元内k行l列的发光矩阵
Figure PCTCN2017071296-appb-000001
中任意发光单元cij表示一比特的二进制或多进制数据对传递信息进行编码，其中cij∈{0,1,…,N}，N对应N进制，0<i<l，0<j<k，k和l均为正整数。
进一步，以发光单元明暗两种状态的变化作为数字传递信号的中的1或0，或多种颜色的变化作为数字传递信号的多个状态，或者明暗和颜色组合的变化作为数字传递信号的多个状态。
优选的，步骤二中，对光标签光标签闪烁时产生的图像进行解码时，包括如下步骤，
2.1移动终端按照自身固有频率连续采集一段时间长度的光标闪烁时产生的签图像，共计m帧，各帧记为：f0，f1，…，fm，采集时间不小于信号传递周期T；
2.2对相邻的任意两帧做差分得到差值图，在差值图中找到成组出现的定位标识中的多个发光单元；根据信号单元和定位标签的关系，得到图像中的信号单元位置并进行发光单元的区块划分；
2.3根据明暗状态或多种颜色变化的状态为每帧中的每一个信号单元内发光单元赋值，则解码得到对应帧的数据；通过解码定位标识状态的转化确定信息传递周期和信息传递的起始，依次解码信息传递周期内的每一帧数据，得到编码的传递信息。
与现有技术相比，本发明具有以下有益的技术效果：
本发明通过光标签的设置，以及与其配合的移动终端的配合，在无线通信网络的支持下，实现了移动终端和数据服务器的信息交互；光标签通过发光和闪烁进行信息的传递，从而能够满足其定向性的要求，并且极大的提高识别距离，能够达到千米级别，同时极大的提高了编码容量，从而能够更好的满足信息传递的需求。并且其系统结构简单，交互方法实施方便，适用于商业交易，在线支付，餐饮订购等等，应用范围广。
附图说明
图1为本发明实例中所述的应用场景图。
图2为本发明实例中所述的应用方法流程图。
图3为本发明实例中所述的解码流程图。
图4为本发明实例中所述的光标签实例图。
图5为本发明实例中所述的识别后的定位标识。
图6为本发明实例中所述的信号单元的区域划分。
图7为本发明实例中所述的信号单元对应的发光矩阵。
图中：用户1，商店2，光标签3，移动终端4，信号单元5，定位标识6。
具体实施方式
下面结合具体的实施例对本发明做进一步的详细说明，所述是对本发明的解释而不是限定。
本发明所述的基于光标签的信息交互系统及方法，应用到远距定向识别的快速支付中，具体的该系统包括存储有商家信息的数据服务器、光标签、移动终端和无线通信网络。
其中，数据服务器提供商家网络购物和相关商品的数据。
如图4所示，光标签包括作为数据位的信号单元5和作为标志位的定位标识6两部分，其中定位标识为图中三个较大的矩形框，三个此矩形框称为一组定位标识符，工作状态下定位标识以一定的频率同步闪烁，通过图像差分的方法可以很快得被摄像设备检测出来，进而借助定位标识可以确定信号单元的位置，从而进行数据识别与读取；信号单元为定位标识间的矩形黑白小正方形，多个信号单元构成一组，本优选实例中信号单元中的发光单元组成5×5的阵列，每个发光单元表示数字信号的“0”或“1”，整个发光单元组组成的矩阵构成一帧的数字信号序列，优选的标识位的边长为数据位边长的两倍，更加便于定位，为了增加信号单元表示的数据空间，工作状态下各信号单元也可按照预定的程序进行闪动，从而将更多的信号内容通过多帧显示，这时需要在多帧中给出一个起始帧/结束标识帧，用于标定多帧一个完整周期的开始/结束位置，该帧信号单元组设定为一个特殊的数据组合，如：全0或全1或任何不与实际可能表述的信息相异的特殊组合。
其中，移动终端是指具有拍摄功能的智能移动设备，包括手机、平板电脑、智能眼镜等，本实例中对上述的光标签的识别距离进行计算如下。
取市场常见的手机设备的参数为例，利用如下公式进行计算。
距离＝物体实际大小×设备焦距/(物体成像像素数×CCD像素单位大小)。
设备的参数如下：
CCD像素大小：1.12×10-3mm；
设备焦距：4.76mm(对角线)；
光标签信号单元实际大小：2×2mm，2×1.414(对角线)；
光标签定位标识实际大小：4×4mm，4×1.414(对角线)；
图像分辨率：3936×5248(2000万)，2688×4480(1000万)；
屏幕面积：136mm(对角线，16：9)；
拍摄分辨率：3936×5248(2000万)；
得到最远距离＝2×4.76/(5×1.12×10-3/1.414)＝2.4×103mm。
由此可见，上述识别距离远远大于同尺寸二维码的识别距离。
利用本发明所述的信息交互方法，移动终端采集远距离光标签标识数据，用于获得商家网上商品销售网络地址与交易相关信息；利用上述获得的信息，数据服务器与移动终端通信，传递商品出售信息及支付信息。
如图1和图2所示，其包括以下步骤。
步骤1：商家在售货地点设立移动终端可远程、定向识别的光标签，光标签通过光线发散向空间范围内广播或展示标识内容；标签标识内容至少包括：商家网络销售服务器地址、商家商品类型、商家地理空间位置、商家营业时间、商家电话号码、本地实时时间；光标签包括发光源，控制电路，以及电池或电源，其中，发光源可以使用各种发光技术，例如使用LED灯，根据不同的使用需求，发光源的数量可以为一个或多个，控制电路用于控制 发光源的光波频率和闪烁，电池和电源为控制电路和发光源提供能源，发光源通过一段时间周期内发出的光的特征，如波长，强度，频率等变化来表达上述标签标识内容；对于上述标签标识内容的光标签编码的方法是：
定位标识与信号单元以1/n秒的频率闪动，n为正整数；信号单元组的编码方法是：在图7所示的信号单元，对应构成的k×l的发光矩阵
Figure PCTCN2017071296-appb-000002
中，k，l为正整数，任意信号单元cij，cij∈{0,1}，0<i<l，0<j<k，表示一比特的二进制数据，{c00，…，cij，…，clk}的集合按照指定序列构成编码组。如果编码按照每个信号单元的位置进行区分，则编码空间为：2k×l；如果编码按照时间序列，则编码空间为T·2k×l，T为一个完整序列周期帧数，T为自然数；光标签还能够是多种色块的组合，通过色块明暗变化形成阵列，不同明暗的色块表示数字信号的0、1、...、N，N对应N进制，代表色块明暗变化所能表示的所有状态数；编码方式与以上相同。
步骤2：用户在距离光标签视距范围内通过肉眼发现上述光标签，如需购买商品用户则通过移动终端定向对准光标签，扫描该光标签并移动终端进行信息捕获与判读处理；移动终端的视频采集频率大于或等于光标签频率的2倍，通过采集手机摄像头中拍摄的视频、图像信息，并将图像帧传入手机内存、处理器进行解码操作，完成识别解码的过程；
上述识别解码的过程如图5和图6所示，移动终端设备摄像头按照自身固有频率连续采集一段时间长度的光标签设备图像，共计m帧，各帧记为：f0，f1，…，fm，其中m大于信号单元组所播放的数据帧序列的一个完整周期T；首先对相邻的任意两帧做差分，就可以得到差值图，在差值图中找到成组出现的三个定位标识符，若没有发现完整的定位标识组或存在超出一组这样的特征，则重新选取相邻两帧进行发现，直至发现定位标识符组为止， 图5为差值图，从中可以找到三个定位标志符；根据上述光标签设计的结构中数据信号单元组与定位标识符之间的位置关系，框出图像中的信号单元组位置，并进行区块划分，找到对应的每一个信号单元所对应的像素区域，图6为通过定位标识符和信号单元之间的位置关系，进行区块划分的图形；根据明暗状态为每一个信号单元赋值，则得到该帧的数据；由于m>T，因此上述获得的编码数据存在重复，这里规定只有在定位标识符发生状态转化时的首个帧的信号单元数据有效，因此可以从上面的m个编码数据中选出T个有效数据，其余不符合条件的编码数据去除，则得到与步骤二中光标签所发送的数据一致，然后将筛选出的编码输入处理程序内存区，采集完整的一个周期的图像数据，得到编码信息，完成识别过程。
步骤3：扫描识别解码成功后，将获得的编码结果在字典表里查询解码，从而得到标签数据中蕴含的商家网络销售服务器地址、商家商品类型、商家地理空间位置、商家营业时间、商家电话号码信息；利用将上述获得信息在移动终端上进行显示；如果用户需要购买该商家的商品，则操作商家网址所对应的控制控件，打开商家网络销售服务器地址，进入商品销售页面；该商品销售页面要素与通常网络电商销售页面一致；
步骤4：用户在销售页面中选定商品和商品的数量后，发起商品费用支付请求，该支付请求通过网络信息通道提交给商家服务器；商家通过对服务器获知用户的购买请求，如果购买行为合规，则接收用户的支付并返回支付成功应答，应答内容包含一个与此次交易相关、系统即时生成的验证码C；
步骤5：获得支付成功应答后，用户向售货地点行进，同时商家开始准备用户购买的商品；准备过程包括理货、售前处理(如：加热、低温处理、消毒、分类、切割、包装)、安置商品待提货；
步骤6：当用户到达售货地点取货窗口后由商家实施确认；确认方法是：用户出示步骤5中商家服务器发送的支付成功产生的验证码C和支付货款 编号，商家将用户出示的信息与商家服务器上的该笔交易信息进行一致性比对，如果一致则确认成功，否则认为提货请求无效；
步骤7：若确认通过后用户领取商品，交易完成。
本发明所述的信息交互方法过程简单合理，可远距操作并通过视觉目标选定指定零售商，零售商备货与用户接近同步进行从而大大减少购物支付等待时间、减少实体店营业面积需求的优点。利用移动智能设备对远距离(的标签进行定向识别，继而进行远距支付消费。基于上述方法的用户与商家之间的快速交易方法，即：商家在收到订单后备货的同时，用户接近取货点，二者并行进行，从而有效、显著地缩短用户的等待时间，提高购物效率，也大大缩减了商家所需的店面营业面积，进而降低了铺面租金。
具体的，在图1的应用场景中，用户1途径商店2需购买商店2中的若干瓶装饮料，在其接近商店2的过程中使用本方法快速购买并支付，其过程如图2所示；图2左侧为用户1操作流程，右侧为商店2操作流程，包括如下步骤。
步骤1：商店2在售货地点设立移动终端可远程、定向识别的光标签3，光标签3标识内容至少包括：www.mycafe.com、餐饮类、AB街区、9：00-21:00、88888、12:56:09；光标签3信号单元组由5×5个发光单元组成，起始帧为全1，帧周期为T＝6帧，闪烁频率为60Hz；
步骤2：用户1在距离标签280米处通过肉眼发现光标签3，恰巧需要购买热饮料一杯，用户1使用移动终端4定向对准光标签3，扫描该标签使用移动终端4进行信息捕获与判读处理；该移动终端4需安装有智能移动终端操作系统、拥有摄像头，摄像头的视频采集频率120FPS，内存空间1000M；移动终端4采集30帧，各帧记为：f0，f1，…，f30；首先对相邻的两帧f2，f3做差分差值图，在差值图中找到成组出现的三个定位标识符；依据定位标识符找到信号单元组，经过分区、找到对应个单元在一帧中表示的 数据内容，按照此方法找到一个周期(f6，f7，f8，f9，f10，f11)的数据，得到编码数据；
步骤3：扫描识别成功后，将获得的编码结果在字典表里查询解码，从而得，完成识别出www.mycafe.com、餐饮类、AB街区、9：00-21:00、88888、12:56:09信息；利用将上述获得信息移动终端4的显示器上进行显示；打开商家网络销售服务器地址，进入商品销售页面；
步骤4：用户1在销售页面中选定在页面中选定热饮料一杯，通过网银发起商品费用支付请求，该支付请求通过网络信息通道提交给商家服务器；商家接收用户的支付并返回支付成功应答，应答内容包含一个随机验证码897548；
步骤5：获得支付成功应答后，用户1向售货地点商店2行进，同时商家开始加热饮料、加糖、包装、安置待用户1提货；
步骤6：3分钟后，用户1到达售货地点商店2取货窗口，出示随机码897548和支付货款编号，商家将用户出示的信息与商家服务器上的该笔交易信息进行一致性比对，通过；
步骤7：交货，交易完成。

Claims (8)

  1. 一种基于光标签的信息交互系统，其特征在于，包括用于信息编码的光标签，用于提供信息的数据服务器，用于信息解码和连接数据服务器的移动终端，以及用于连接移动终端和数据服务器的无线通信网路；
    所述的光标签包括信号单元和定位标识；信号单元包括若干独立闪烁的发光单元，定位标识包括多个同步闪烁的发光单元，定位标识中发光单元的发光面积大于信号单元中发光单元的发光面积；通过发光单元的闪烁编码传递的信息内容；
    所述的移动终端包括图像采集装置和图像处理模块，图像采集装置用于采集光标签的编码图像，图像处理模块用于对编码图像进行解码；移动终端根据解码信息通过无线通信网络连接数据服务器交互信息。
  2. 根据权利要求1所述的一种基于光标签的信息交互系统，其特征在于，信号单元中的发光单元呈矩阵排列。
  3. 根据权利要求1所述的一种基于光标签的信息交互系统，其特征在于，定位标识至少包括不在同一直线上的三个发光单元，定位标识的发光单元相邻设置在信号单元外部。
  4. 根据权利要求1所述的一种基于光标签的信息交互系统，其特征在于，移动终端采用智能手机、平板电脑和智能眼镜。
  5. 一种采用如权利要求1所述基于光标签的信息交互系统的信息交互方法，其特征在于，包括如下步骤，
    步骤一，将供给信息通过设定信号单元中每个发光单元的闪烁排序和频率对所要传递的信息进行编码，通过设定定位标识中所有发光单元的闪烁排序和频率对信息传递的周期进行编码；
    步骤二，需求信息时，利用移动终端在不短于信息传递周期的时间内通过图像采集模块连续采集光标签闪烁时产生的图像，通过对图像的解码得到光标签传递的信息；
    步骤三，移动终端根据解码后得到的信息，经无线通信网络与数据服务器连接，实现需求与供给信息的交互。
  6. 根据权利要求5所述的一种基于光标签的信息交互方法，其特征在于，步骤一中，光标签中的信号单元编码时，以信号单元内k行l列的发光矩阵
    Figure PCTCN2017071296-appb-100001
    中任意发光单元cij表示一比特的二进制或多进制数据对传递信息进行编码，其中cij∈{0,1,…,N}，N对应N进制，0<i<l，0<j<k，k和l均为正整数。
  7. 根据权利要求6所述的一种基于光标签的信息交互方法，其特征在于，以发光单元明暗两种状态的变化作为数字传递信号的中的1或0，或多种颜色的变化作为数字传递信号的多个状态，或者明暗和颜色组合的变化作为数字传递信号的多个状态。
  8. 根据权利要求5所述的一种基于光标签的信息交互方法，其特征在于，步骤二中，对光标签光标签闪烁时产生的图像进行解码时，包括如下步骤，
    2.1移动终端按照自身固有频率连续采集一段时间长度的光标闪烁时产生的签图像，共计m帧，各帧记为：f0，f1，…，fm，采集时间不小于信号传递周期T；
    2.2对相邻的任意两帧做差分得到差值图，在差值图中找到成组出现的定位标识中的多个发光单元；根据信号单元和定位标签的关系，得到图像中的信号单元位置并进行发光单元的区块划分；
    2.3根据明暗状态或多种颜色变化的状态为每帧中的每一个信号单元内发光单元赋值，则解码得到对应帧的数据；通过解码定位标识状态的转化确定信息传递周期和信息传递的起始，依次解码信息传递周期内的每一帧数据，得到编码的传递信息。
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