CN104820855A - Generation and identification method of dynamic two-dimensional codes based on mobile environment perception technology - Google Patents

Abstract

The invention discloses a dynamic two-dimensional code generation and recognition method based on mobile environment perception technology. Based on the static two-dimensional code information template, the method further dynamically recognizes the environmental feature information and generates dynamic two-dimensional code information, so that after the user scans the code, the environment information is captured by the environment perception technology of the smart mobile device, and then the most accurate information is decoded. QR code information suitable for the user's mobile environment. The present invention can be downwardly compatible with the traditional static two-dimensional code technology without increasing hardware costs, and it is convenient and quick to realize, and can be used for any equipment and application using two-dimensional codes, such as smart phones, ATM machines, tablet computers, advertising display screens, Devices such as traditional media, authentication systems, etc.

Description

Dynamic two-dimensional code generation and recognition method based on mobile environment perception technology

technical field

The present invention relates to multiple technical fields such as computer software technology, mobile environment perception technology, design, generation and identification of two-dimensional codes, and specifically relates to a method for generating and identifying two-dimensional codes based on mobile environment perception technology.

Background technique

With the popularity of QR codes and related applications, scanning QR codes has become one of the most important means for mobile device users to obtain various information in the physical world. For example, website login, mobile payment, advertisement coupon acquisition, identity recognition, information transfer, etc. can be performed by scanning the QR code. In addition to the traditional design of traditional black and white blocks, the main two-dimensional code design methods derived in recent years include: (1) beautify the appearance (for example, multi-color, insert pictures in the center); The two-dimensional code is linked to a remote server page that can modify the content, so as to realize the change of the two-dimensional code content, that is, "live code"; (3) modify the two-dimensional code code to realize different scanning distances to scan out different two-dimensional codes. Two-dimensional code content; (4) Write basic information (for example, xml tags) in the two-dimensional code, and integrate new content (for example, a complete xml file) according to the content of the two-dimensional code and other external parameters when scanning the code; (5) Existing two-dimensional code design patent: "A dynamic two-dimensional code access control identification method and device that changes with time" (patent number CN201410219488), which generates different verification two-dimensional codes according to time to increase security.

The user who scans the QR code is in a mobile environment, and the QR code information in these existing design methods needs to be input by the publisher, and most of the information is fixed and cannot be adaptively based on the user’s The environment varies from place to place, which reduces the personalization of the content of the two-dimensional code and increases the difficulty of updating the content of the two-dimensional code.

Contents of the invention

In order to overcome the defect that the existing two-dimensional code content cannot be adaptively changed with different environments, the present invention proposes a two-dimensional code generation and recognition method based on mobile environment perception technology, and two-dimensional code recognition software using this method , can greatly improve the fit between the two-dimensional code content and the user's environment, and can reduce the difficulty of updating the two-dimensional code content.

To achieve the above object, the present invention adopts the following technical solutions:

A two-dimensional code generation and recognition method based on mobile environment perception technology, the main idea of which is to divide the two-dimensional code content into static information and dynamic information. Static information is still determined by the publisher, while dynamic information is determined by the user's environment information scanned by the QR code, that is, the environmental information perceived by the mobile device held by the user. The steps of this method include:

1) Input of static information of QR code: The publisher enters the "static information" that needs to be included in the QR code. First, select a static information template (for example, a discount advertisement information template, a lecture poster information template, a link information template, etc.), and fill in the non-keyword information in the static information template; the keyword information in the template is vacant (such as In the discount information template, there are vacancies in information such as business name and discount time), and the keyword information will be filled by the subsequent dynamic information.

2) Two-dimensional code dynamic information generation rule input: the publisher selects dynamic information generation rules, including environmental feature selection rules (geographic location, time, weather, user actions, user historical behavior of using mobile devices and other environmental features), environmental information conversion rules (For example, geographical location information is transformed into a business name or an administrative district name, and time information is transformed into judging whether the discount time has expired).

3) Two-dimensional code generation: Based on the static information and dynamic information generation rules input by the publisher, the two-dimensional code generation server in this method will generate the two-dimensional code according to the traditional two-dimensional code coding standard. There is a part of specific information or redundant information (such as error correction code) in the two-dimensional code, which can be used to identify the dynamic two-dimensional code information generation rule.

4) Two-dimensional code scanning and identification: The user uses the two-dimensional code scanning software (see below) proposed by this method to identify the dynamic two-dimensional code on the smart mobile device, and decodes to obtain all information. Among them, the static information template is directly obtained through the traditional two-dimensional code decoding algorithm, and the keyword information is generated by the environment perception technology of the smart mobile device to capture the environment information. For example, the business name in the discount template can be obtained by mobile indoor positioning technology, and whether the discount time expires can be determined by referring to the time of the discount information reading system.

A two-dimensional code application software system based on mobile environment perception technology, which includes:

Publisher input interface, used to input static information templates to be set and dynamic information generation rules;

The two-dimensional code generation module is used to generate a dynamic two-dimensional code according to the template and rules selected by the publisher. The keyword information of the dynamic two-dimensional code contains the environmental characteristics that can be captured by the environment perception technology of the smart mobile device. The environment feature as all or part of the QR code keyword to be set;

The two-dimensional code recognition module (code scanning software, code scanning device) is used to distinguish the traditional static two-dimensional code and the dynamic two-dimensional code proposed by this method, and to decode the two-dimensional code in combination with the sensor information of the mobile device.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1) The present invention proposes a two-dimensional code generation and recognition method based on mobile environment perception technology, which can greatly improve the fit between the two-dimensional code content and the user's environment. The two-dimensional code application software system proposed by the present invention mainly involves two parts: 1) static information template selection and static information identification; 2) further, dynamic information generation and environmental feature identification. After the user scans the QR code, the static information is combined with the dynamic information to decode the QR code information most suitable for the user's mobile environment.

2) The present invention can be backward compatible with traditional static two-dimensional code technology. If the two-dimensional code in step 3) contains a dynamic generation rule identifier, then what is generated is a dynamic two-dimensional code, which is scanned using a dynamic two-dimensional code recognition algorithm in step 4); otherwise, what is generated in step 3) is a traditional two-dimensional code Code, in step 4), use the traditional static two-dimensional code recognition algorithm to scan, that is, this method is backward compatible with the traditional static two-dimensional code. In this method, the publisher needs to select the format and specifications of the information contained in the QR code, and confirm by selecting templates and rules; when the events captured by the mobile device do not fall within the scope of the templates and rules, dynamic content cannot be generated; The scanning recognition result is equivalent to the traditional two-dimensional code method.

3) The present invention does not need to increase the hardware cost, and it is convenient and quick to implement, and can be used in any equipment and application using two-dimensional codes, such as smart phones, ATM machines, tablet computers, advertising display screens, traditional media, identity verification systems and other equipment.

Description of drawings

Fig. 1 is the overall flowchart of the method of the present invention.

FIG. 2 is a schematic diagram of an environment perception capability of a mobile device.

Fig. 3 is a schematic diagram of the content of the dynamic two-dimensional code of the discount advertisement in the embodiment including static template information and dynamic environment information.

Detailed ways

The present invention will be described in detail below through specific embodiments and accompanying drawings.

The invention utilizes the characteristic information of the mobile environment to enhance the adaptability of the content of the two-dimensional code. The overall flow of the dynamic two-dimensional code design method based on mobile environment perception technology in this embodiment is shown in Figure 1, and the specific implementation steps are as follows:

1. Static template setting:

The setting of the static template is similar to the printf function in the C language, using a combination of fixed text and variable text. The specific solution is to replace a variable string with '#', and other characters represent fixed strings. The publisher of the QR code can enter his own identifier in the webpage and display the content according to the response paradigm. For example, as shown in Figure 3(a), McDonald's enters "french fries price: ￥#" as the content of the QR code, and the '#' behind '￥' is a string that can be automatically changed according to the environment at the time of scanning and the internal information of the user. information, and the rest is static content. In this case, a number formed from external parameters.

2. Generation of dynamic information rules:

Different dynamic information generation rules may be used according to different requirements of QR code issuers. The following categories are designed dynamic information generation rule classes.

·Coupon discount category: Merchants obtain the time and place of the current environment, and give corresponding discount or preferential information through the time and place, such as the number of discounts or preferential prices.

Lectures and bulletin information: the bulletin issuer obtains the time and place of the current environment, and releases corresponding information related to the current time and place, such as the schedule information of different branches of a large theater at different times.

·Advertising: The merchant obtains the time and location of the scanned user, as well as the user's current environment (such as whether it is in an elevator, whether it is in an office building, etc.), and publishes the advertisement with the greatest profit opportunity corresponding to the current environment.

·Social service category: It can obtain the user's address book information, obtain the corresponding situation of the user through the user's social circle, and release response information according to its special social behavior characteristics, and then can be further promoted.

·Custom rule class: Provide publishers with all available interfaces, such as obtaining user's time, location, three-axis gyroscope, light sensor, etc., allowing publishers to customize dynamic rules.

The parameters in the above dynamic information generation rules are all obtained through the mobile terminal. Figure 2 is a schematic diagram of the environmental perception capabilities of mobile devices. Generally, Android devices have many sensors. The corresponding data of the sensors can be obtained by using the corresponding API of the Android system. After analysis, the corresponding data can be obtained.

3. Dynamic QR code content generation:

After the static template and dynamic rule generation have been established, a dynamic QR code can be generated for the QR code issuer. The dynamic QR code only saves the static template, but the publisher's dynamic information rules are saved in the form of dex bytecode in the server background, and synchronized with the user client through the user's optional method. The specific steps to generate bytecode are:

·Convert the descriptive dynamic rules input by the publisher into corresponding java code dynamic rules, and then save the codes in the back end of the server by means of dynamic compilation.

·At the end of the generation, call the corresponding packaging program to convert java bytecode into dex bytecode.

A specific identifier can also be added to the QR code to indicate that this is a new type of dynamic QR code. For example, the feature of redundant coding of information in the QR code standard can be used to put this identifier into the QR code The redundant information part, while ensuring the fault tolerance rate, to ensure that the two-dimensional code can still be used normally.

4. Dynamic two-dimensional code content scanning and recognition:

A matching code scanning software is required to scan and identify the content of the dynamic QR code. First, the open source Java class library Zxing can be used to analyze the content of the QR code. After modifying the original code of Zxing, it can be judged whether the QR code is a new type of QR code based on the marks stored in the redundant information. After obtaining the content of the QR code, use the separator "#" to extract the publisher of the QR code and the information to be displayed. Using this information, match the corresponding class from the "publisher class library" (that is, the dex bytecode mentioned above) stored in the SD card of the mobile phone, and call the function in it to obtain the parameters to be filled. Here, the class dalvik.system.DexClassLoader in the Android system API is mainly used, so that external classes can be instantiated and dynamically loaded into the scanner application, and the existing functions in these classes can be called normally. This class library is generated and updated on the server side, and users can download the class library as needed. The functions in the class library generate corresponding parameters to replace the unknown quantities in the original content of the QR code according to the dynamic information rules defined by the QR code publisher, and output them. For example, in Figure 3(b), KFC generates a new QR code with the content "fried chicken discount: #投", and specifies the rule as "8.5 when the location is Beijing; 9 for other locations", if the user holds If you scan this QR code in Beijing, you will see "Fried Chicken Discount: 15% off".

The above uses the DexClassLoader class in Google's Android system software platform and the open source Java class library Zxing as examples, only to illustrate the detection process of the password authentication of the present invention, rather than to limit it. Those of ordinary skill in the art can modify the password authentication detection method of the present invention on touch-screen devices based on other software platforms (such as touch-screen devices based on Apple's iOS system, touch-screen ATM machines, touch-screen access control systems, etc.) or equivalents may be substituted without departing from the spirit and scope of the invention. The scope of protection of the present invention should be defined by the claims.

Claims (8)

1. A dynamic two-dimensional code generation and recognition method based on mobile environment perception technology, the steps comprising: 1) The publisher selects a static information template, and enters the static information that needs to be included in the QR code; the non-keyword information in the template is specified by the publisher, and the keyword information is vacant; 2) The publisher selects dynamic information generation rules, including environmental feature selection rules and environmental information conversion rules, and the keyword information in the static information template is defined by dynamic information generation rules; 3) Based on the static information and dynamic information generation rules input by the publisher, a dynamic two-dimensional code containing environmental characteristics is generated; 4) The user scans the generated dynamic two-dimensional code, captures the environmental information through the environment perception technology of the smart mobile device, and then generates the keyword information in the static information template according to the dynamic information generation rules to realize the decoding of the dynamic two-dimensional code. 2. The method according to claim 1, wherein the static information template in step 1) is one of the following categories: advertisement, link, text, picture, business card. 3. The method according to claim 1, characterized in that, in step 2), the features obtained by the environment feature selection rules include all user behavior features that smart mobile devices can capture, including: geographic location, time, weather, Three-axis gyroscope data, light intensity, magnetic field data, acceleration sensor data, historical behavior of users using mobile applications, and historical behavior of users using mobile device hardware. 4. The method according to claim 3, characterized in that, in step 2), the operation performed through environmental information conversion rules is equivalent to converting environmental feature information into events or existing objects in a specific environment, including: Convert geographic location information into place names, time into event validity, weather information into travel advice, three-axis gyroscope data/light intensity/magnetic field data/acceleration sensor data into user prompt information, user use of mobile applications/hardware history Behaviors are transformed into user suggestions and tips. 5. The method according to claim 1, wherein the dynamic information generation rule is identified by using a part of specific information or redundant information in the two-dimensional code. 6. The method according to claim 1, wherein the content contained in the dynamic two-dimensional code is no longer the static information specified by the publisher, but based on the selected static information template and dynamic information generation rules, The information and data adapted to the user's environment are dynamically generated by the environmental awareness of smart mobile devices. 7. The method according to claim 1, wherein when the environmental information captured by the mobile device does not belong to the scope of the static information template and dynamic information generation rules, the dynamic content cannot be generated, and the scanning recognition result is equivalent to The way of traditional two-dimensional code. 8. A dynamic two-dimensional code generation and recognition system based on mobile environment perception technology, characterized in that it comprises: Publisher input interface, used to input static information templates to be set and dynamic information generation rules; The two-dimensional code generation module is used to generate a dynamic two-dimensional code according to the static information template and dynamic information generation rules selected by the publisher, and the keyword information of the dynamic two-dimensional code includes environmental characteristics that can be captured by the environmental perception technology; The two-dimensional code recognition module is used to distinguish between the traditional static two-dimensional code and the dynamic two-dimensional code generated by the two-dimensional code generation module, and captures the environmental information through the mobile sensing technology of the smart mobile device, and decodes it according to the dynamic information generation rules.