CN107820237B - A data transmission method and device under a WIFI network - Google Patents

Abstract

The invention discloses a data transmission method and device under a WIFI network, which is applied to a mobile terminal, wherein the method includes: detecting environmental information where the mobile terminal is currently located; When the reliability information reaches the preset condition, the content of the information data that needs to be transmitted through the currently accessed WIFI network is detected; if it is necessary to transmit information through the currently accessed WIFI network When the content of the transmitted information data conforms to the predetermined information content, the currently accessed WIFI network is switched to the network of the terminal operator to transmit the information data. When the mobile terminal is connected to the unsafe WIFI network, the present invention can effectively avoid the leakage of the user's personal information data.

Description

A data transmission method and device under a WIFI network

technical field

The present invention relates to the field of communication technologies, and in particular, to a data transmission method and device under a WIFI network.

Background technique

At present, under some unsafe WIFI networks in public places, the protection of sensitive information such as user account passwords is to remind users not to use sensitive information under these unsafe WIFI to prevent others from stealing personal important information. This information protection method requires users not to access the network through WIFI in a public environment, so as to prevent personal information from being leaked and cause users to lose application opportunities that may connect to other networks.

In some application programs, user data is also protected through detection of an Internet Protocol (Internet Protocol, IP for short) between networks. If the user's IP changes, the user will be reminded to log in again to ensure the security of the user's data. However, if the user is on an unsecured WIFI network and the application detects that it needs to log in again, it may cause complete leakage of user data.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a data transmission method and device under a WIFI network, which solves the problem of possible information data leakage when the information data needs to be transmitted through the WIFI network.

In order to achieve the above purpose, an embodiment of the present invention provides a data transmission method under a WIFI network, which is applied to a mobile terminal, and the method includes:

Detecting the current environment information of the mobile terminal;

According to the environment information, determine the credibility information when the mobile terminal transmits information through the currently accessed WIFI network;

When the credibility information reaches a preset condition, detect the content of the information data that needs to be transmitted through the currently accessed WIFI network;

If the content of the information data to be transmitted through the currently accessed WIFI network conforms to the predetermined information content, the currently accessed WIFI network is switched to the terminal operator's network to transmit the information data.

Preferably, the step of detecting the current environment information of the mobile terminal includes:

Parsing the service set identifier of the currently accessed WIFI network to obtain first parsing information;

obtaining the first keyword in the first analysis information;

The current environment information of the mobile terminal is determined according to the first keyword.

Preferably, the step of detecting the current environment information of the mobile terminal includes:

Parse the service set identifiers of all currently accessible WIFI networks, and obtain second parsing information corresponding to the service set identifiers of each accessible WIFI network;

obtaining a second keyword in each of the second analysis information;

The current environment information of the mobile terminal is determined according to the second keyword.

Preferably, according to the environmental information, the step of determining the credibility information when the mobile terminal transmits information through the currently accessed WIFI network includes:

Matching the environmental information with the reliability matching table of the preset environmental information to obtain the first reliability value of the environmental information;

Determine the second reliability value of the currently accessed WIFI network according to the number of times the mobile terminal is connected to the currently accessed WIFI network within the preset time period;

According to the first reliability value and the second reliability value, the reliability information when the mobile terminal transmits information through the currently accessed WIFI network is determined.

Preferably, after the step of determining the credibility information when the mobile terminal transmits information through the currently accessed WIFI network, the method further includes:

When the credibility value in the credibility information is less than a preset credibility value, it is determined that the credibility information reaches a preset condition.

Preferably, the step of detecting the content of information data that needs to be transmitted through the currently accessed WIFI network includes:

Obtain the content that needs to transmit information data through the currently connected WIFI network;

Matching the information data with the predetermined information content, and when the matching is successful, it is determined that the content of the information data that needs to be transmitted through the currently accessed WIFI network conforms to the predetermined information content;

Wherein, the predetermined information content includes user personal information, user login information and bank account information.

Preferably, after the step of switching the currently accessed WIFI network to the terminal operator's network to transmit information data, the method further includes:

Switch the currently connected terminal operator's network to the previously accessed WIFI network.

An embodiment of the present invention also provides a data transmission device under a WIFI network, which is applied to a mobile terminal, and the device includes:

an identification module for detecting the current environment information of the mobile terminal;

a processing module, configured to determine, according to the environmental information, the credibility information when the mobile terminal transmits information through the currently accessed WIFI network;

a detection module, configured to detect the content of information data that needs to be transmitted through the currently accessed WIFI network when the credibility information reaches a preset condition;

The transmission module is configured to switch the currently accessed WIFI network to the terminal operator's network to transmit the information data if the content of the information data needs to be transmitted through the currently accessed WIFI network conforms to the predetermined information content.

Preferably, the identification module includes:

a first parsing unit, configured to parse the service set identifier of the currently accessed WIFI network to obtain first parsing information;

a first obtaining unit, configured to obtain the first keyword in the first analysis information;

The first identification unit is configured to determine the current environment information of the mobile terminal according to the first keyword.

Preferably, the identification module includes:

a second parsing unit, configured to parse the service set identifiers of all currently accessible WIFI networks, and obtain second parsing information corresponding to the service set identifiers of each accessible WIFI network;

a second obtaining unit, configured to obtain the second keyword in each of the second analysis information;

The second identification unit is configured to determine the current environment information of the mobile terminal according to the second keyword.

Preferably, the processing module includes:

a first matching unit, configured to match the environmental information with a reliability matching table of preset environmental information to obtain a first reliability value of the environmental information;

a first processing unit, configured to determine the second reliability value of the currently accessed WIFI network according to the number of times the mobile terminal is connected to the currently accessed WIFI network within a preset time period;

The second processing unit is configured to determine, according to the first credibility value and the second credibility value, credibility information when the mobile terminal transmits information through the currently accessed WIFI network.

Preferably, the device further comprises:

A judgment module, configured to determine that the credibility information reaches a preset condition when the credibility value in the credibility information is less than a preset credibility value.

Preferably, the detection module includes:

a third acquiring unit, configured to acquire the content of the information data that needs to be transmitted through the currently accessed WIFI network;

The second matching unit is configured to match the information data with the predetermined information content, and when the matching is successful, it is determined that the content of the information data that needs to be transmitted through the currently accessed WIFI network conforms to the predetermined information content;

Wherein, the predetermined information content includes user personal information, user login information and bank account information.

Preferably, the device further comprises:

The switching module is used for switching the network of the terminal operator currently connected to the previously accessed WIFI network.

The beneficial effects of the embodiments of the present invention are:

In the above solution, the current environment information of the mobile terminal is detected, and the corresponding reliability judgment is made for the current environment information. When the credibility is lower than the preset credibility value, it is further detected whether the information data currently to be transmitted is sensitive information. If it is sensitive information, switch the currently accessed WIFI network to the operator's network to transmit information and data. This ensures the protection of personal information in an untrusted or complex WIFI environment. After completing the transmission of the information data, switch to the previous WIFI network connection to ensure that after completing the transmission of the information data, you can quickly switch to the WIFI network connection, and do not need to perform the operation of the WIFI network connection again.

Description of drawings

FIG. 1 shows a flowchart of a data transmission method under a WIFI network according to an embodiment of the present invention;

FIG. 2 shows a flow chart of detecting the current environment information of the mobile terminal according to an embodiment of the present invention;

FIG. 3 shows another flowchart of detecting the current environment information of the mobile terminal according to an embodiment of the present invention;

FIG. 4 shows a flowchart of determining reliability information when transmitting information under the currently accessed WIFI network according to an embodiment of the present invention;

5 shows a flowchart of detecting the content of information data that needs to be transmitted through the currently accessed WIFI network according to an embodiment of the present invention;

FIG. 6 shows a structural block diagram of a data transmission apparatus under a WIFI network according to an embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be more thoroughly understood, and will fully convey the scope of the present invention to those skilled in the art.

As shown in FIG. 1, an embodiment of the present invention provides a data transmission method under a WIFI network, which is applied to a mobile terminal, and the method includes:

S101. Detect the environmental information where the mobile terminal is currently located;

In this embodiment, the environment information includes information about the geographic location where the mobile terminal is currently located and/or information about the current access network status of the mobile terminal. Among them, the geographic location information includes shopping mall environment, residential place, office place and so on. The network state information includes the network state of the access operator and the network state of the access non-operator.

S102, according to the environment information, determine the credibility information when the mobile terminal transmits information through the currently accessed WIFI network;

In this embodiment, the credibility information may be determined according to the credibility value of the preset geographic location information, the number of connections to the currently accessed WIFI network within the preset time period, network status information, and the like.

S103, when the credibility information reaches a preset condition, detect the content of the information data that needs to be transmitted through the currently accessed WIFI network;

S104 , if the content of the information data to be transmitted through the currently accessed WIFI network conforms to the predetermined information content, switch the currently accessed WIFI network to the terminal operator's network to transmit the information data.

In this embodiment, when it is detected that the content of the information data to be transmitted currently includes predetermined information content, the currently accessed WIFI network is switched to the network of the terminal operator to transmit the information data. The predetermined information content includes: the user's bank account number, ID number, contact information, and other information such as user name and password. In this solution, when the credibility value of the currently accessed WIFI network is lower than the preset credibility value, the leakage of personal information and data of the user is avoided.

Further, as shown in FIG. 2 , the step of detecting the current environment information of the mobile terminal includes:

S201. Parse the service set identifier of the currently accessed WIFI network to obtain first parsing information;

In this embodiment, the method of parsing the service set identifier of the WIFI network is described by taking the shopping mall environment as an example. For example, for a service set identifier containing a Chinese name, the method of directly extracting Chinese keywords is adopted. For a service set identifier named with a store name, the store name can be directly extracted as the first keyword. For the service set identifier including the alphabetic name, it can be parsed according to the way that the alphabet is compared with the Chinese pinyin, the Chinese pinyin therein is translated into the Chinese name, and the first keyword is obtained. For the service set identifier including the English name, the store name represented by the English name can be directly used as the first keyword.

S202, acquiring the first keyword in the first analysis information;

In this embodiment, the first keyword is a keyword representing environmental information where the mobile terminal is currently located. For example, if it is obtained by parsing that the first parsed information is the name of a certain clothing brand, the clothing brand name is extracted as the first keyword. According to the first keyword, it can be determined that the current environment information of the mobile terminal is the shopping mall environment.

S203. Determine the current environment information of the mobile terminal according to the first keyword.

In this embodiment, the way of determining the current environment information of the mobile terminal may be to match the first keyword with the judgment table of preset environment information, and put the first keyword in the judgment table of preset environment information corresponding to the first keyword. The environment information of the mobile terminal is taken as the environment information where the mobile terminal is currently located.

Further, as shown in FIG. 3 , the step of detecting the current environment information of the mobile terminal includes:

S301. Parse the service set identifiers of all currently accessible WIFI networks, and obtain second parsing information corresponding to the service set identifiers of each accessible WIFI network;

S302, acquiring the second keyword in each of the second analysis information;

S303. Determine the current environment information of the mobile terminal according to the second keyword.

In this embodiment, for the case where the corresponding environment information cannot be determined only by parsing the service set identifier of the currently accessed WIFI network and obtaining the first keyword, the corresponding environment information can also be determined by analyzing all currently accessible WIFI networks. The service set identifier is parsed, and the second keyword in the second parsing information corresponding to the service set identifier of each accessible WIFI network is acquired. The current environment information of the mobile terminal is determined according to the plurality of second keywords.

Specifically, the second keywords corresponding to the preset number of WIFI networks may be screened out in descending order of signal strengths of currently accessible WIFI networks. Matching is performed according to the judgment table of the filtered second keyword and the preset environmental information, and the environmental information corresponding to the second keyword with the largest number is used as the current environmental information of the mobile terminal.

In addition, in order to shorten the parsing process of the service set identifier, the parsing process may be performed only on the service set identifier of the non-operator network, and/or after a preset number of WIFI networks are preferentially screened in descending order of signal strength, Perform analysis again.

It is worth noting that, the global positioning system (GPS) can also be used for direct positioning to obtain the current geographic location information of the mobile terminal.

Further, as shown in FIG. 4 , according to the environment information, the step of determining the credibility information when the mobile terminal transmits information through the currently accessed WIFI network includes:

S401. Match the environmental information with a reliability matching table of preset environmental information to obtain a first reliability value of the environmental information;

In this embodiment, in the credibility matching table of the preset environment information, the first credibility value of the public environment information (eg, shopping mall environment, hotel environment, etc.) can be set to a low value (eg, set to 1). ), the first reliability value of the residential environment information is set to a high value (for example: set to 10). In addition, the first reliability value setting may be correspondingly increased according to the increase in the number of connections to the same WIFI network in the same environment information. However, when it is determined that the environment information of the currently accessed WIFI network is public environment information, the first reliability value of the public environment information is initially reset to 1.

S402: Determine the second reliability value of the currently accessed WIFI network according to the number of times the mobile terminal is connected to the currently accessed WIFI network within a preset time period;

In this embodiment, the second reliability value of the unconnected WIFI network is set to 1, and the second reliability value is set correspondingly according to the increase of the number of connections (for example, the number of connections to detect the current WIFI network is 5. Set the second confidence value to 3). In addition, the second reliability value may also be preset for a specific WIFI network. For example: the preset second reliability value of the currently accessed WIFI network is 10, and the second reliability value determined according to the number of connections is 1, then the average value of the two is taken to determine the current access WIFI network. The second confidence value is 5.5.

S403. Determine, according to the first credibility value and the second credibility value, credibility information when the mobile terminal transmits information through the currently accessed WIFI network.

In this embodiment, according to a preset weighting algorithm, the average credibility value of the first credibility value and the second credibility value is calculated as the credibility information when the mobile terminal transmits information through the currently accessed WIFI network .

Further, after the step of determining the credibility information when the mobile terminal transmits information through the currently accessed WIFI network, the method further includes:

When the credibility value in the credibility information is less than a preset credibility value, it is determined that the credibility information reaches a preset condition.

In this embodiment, the credibility value in the credibility information is compared with the preset credibility value, and if the credibility value of the currently accessed WIFI network is 6, it is determined that the currently accessed WIFI network is not A secure network (a network that transmits information data containing predetermined information content is not recommended); if the reliability value is 10, it is determined that the currently accessed WIFI network is a secure network.

Specifically, the preset reliability value may be determined according to the preset information content level, application level, and the like. For example: setting of preset information content levels: the first level includes information data related to bank account numbers, personal property, etc.; the second level includes information data related to personal address, contact information, work unit, etc.; the third level includes user login Information and other related information data. Set the preset credibility value of instant messaging software, websites involving user login information, etc. that do not involve user funds and bank account information to between 5 and 8, and set the preset credibility values that do not involve user funds and bank account information. The degree value is set to be greater than 8, and the present invention is not limited to this.

Further, as shown in FIG. 5 , the step of detecting the content of information data that needs to be transmitted through the currently accessed WIFI network includes:

S501, acquiring the content of the information data that needs to be transmitted through the currently connected WIFI network;

S502. Match the information data with the predetermined information content, and when the matching is successful, determine that the content of the information data that needs to be transmitted through the currently accessed WIFI network conforms to the predetermined information content;

In this embodiment, the predetermined information content includes: user personal information (eg, ID card information, address, contact information, etc.), user login information, bank account information, and the like. The predetermined information content is stored in the terminal in ciphertext.

When the credibility information reaches a preset condition, a data transmission detection thread is established to detect the content of the information data input by the user. Analyze the content of the information data that the user needs to transmit, and when it is confirmed that the content of the information data that needs to be transmitted through the currently accessed WIFI network contains the preset information content, switch the currently accessed WIFI network to the terminal operator's network. Transmission of information data.

It is worth noting that the transmission and detection of information data is controlled at the data transmission layer, that is, before the WIFI network needs to encapsulate and transmit data through data, the content of the information data is compared first, and then the information data is transmitted. Corresponding WIFI network or mobile data transmission data.

Specifically, when the credibility information reaches the preset condition, firstly monitor high-security webpages such as applications involving preset information content and network protocols in browsers (only for applications and inputs involving network services) , add a monitor to monitor the process generated by each application, and add a pre-made list of sensitive words (for example: bank account information, user personal information and user login information, etc.).

When it is detected that the user has opened a high-security application program such as a bank, an input detection thread is established to obtain the information data input by the user in the application program in real time. For example, the input detection thread acquires keywords (user login information, etc.) in the pre-made list of sensitive words by detecting the content of the homepage of the application. The data in the pre-made list of sensitive words is determined by analyzing whether the user inputs data content in the subsequent input of the user login information. For example, when a user enters the bank's application, the first step is to enter the user name and password. When it is confirmed that the user name and password are being entered, the currently connected WIFI network will be switched to the terminal operator's network. The transmission of the information data is performed.

In the browser, the data content on the web page such as the network protocol is detected by the detection thread. When the user is required to input the content of the information data, the content of the information data input by the user is determined. For example, the mailbox website can be detected according to the user's settings. When the user enters the data content on the home page of the mailbox, the input data content can be mainly detected. When it is detected that the user is operating in the user name and password fields, the current The accessed WIFI network is switched to the terminal operator's network to transmit the information data.

In the instant messaging application, the context content is detected by the detection thread. When it is detected that the context content contains the keywords in the pre-made list of sensitive words, the currently connected WIFI network is switched to the terminal operator's network to perform the process. transmission of content. For example, when judging the bank account number, ID number and other information in the context content, check whether the obtained content is a string of numbers, and then check the long string of data afterward. The user name, password, etc. in the user login information are determined by fuzzy matching in the context content, and the transmission range can be narrowed through data mining algorithms.

In this embodiment, the reliability value of the WIFI network in the public environment is set to a low value, that is, the WIFI network in the public environment is an untrusted network. When it is detected that the mobile terminal is in a public environment, the reliability value of each reconnection to the current WIFI network is reset to 1. Restart to detect the bank application program, mailbox login and other information in the terminal. When keywords with bank account information, password, etc. are detected, switch the currently connected WIFI network to the terminal operator's network to carry out the information. transmission of data. A mapping table is set here, and the applications and inputs that need to be detected are set through the mapping table, such as banking applications, browsers, instant messaging software and other applications, and a pre-made list of sensitive words. When the content of the information data to be transmitted involves these contents in the mapping table, the information data is transmitted through the network of the terminal operator.

When switching the currently accessed WIFI network to the terminal operator's network to transmit the information data, the terminal operator's network to be switched to is added as an additional WIFI network to the list of currently accessible WIFI networks . The initial value of the credibility value of the additional WIFI network is set to 0, and when it is necessary to switch to the additional WIFI network for information data transmission, the credibility value of the additional WIFI network is set to 10, forming a double data transmission channel.

The data transmission channel is selected by judging whether the content of the information data to be transmitted conforms to the predetermined information content. Here, the data transmission priority needs to be set by means of software control. In the additional WIFI network, only the information data determined to meet the predetermined information content is transmitted, and the data burden of the user is not increased. When the information data transmission is completed, set the credibility value of the additional WIFI network to 0, and switch to the previous WIFI network connection to ensure that after the information data transmission is completed, you can quickly switch to the WIFI network connection, and do not need to be re-connected. WIFI network connection operation.

Further, after the step of switching the currently accessed WIFI network to the terminal operator's network to transmit information data, the method further includes:

Switch the currently connected terminal operator's network to the previously accessed WIFI network.

In this embodiment, when the currently accessed WIFI network is switched to the terminal operator's network to transmit the information data, the terminal operator's network to be switched to is added as an additional WIFI network to the currently accessible network WIFI network list. The initial value of the credibility value of the additional WIFI network is set to 0, and when it is necessary to switch to the additional WIFI network for information data transmission, the credibility value of the additional WIFI network is set to 10, forming a double data transmission channel.

The data transmission channel is selected by judging whether the content of the information data to be transmitted conforms to the predetermined information content. Here, the data transmission priority needs to be set by means of software control. In the additional WIFI network, only the information data determined to meet the predetermined information content is transmitted, and the data burden of the user is not increased. When the information data transmission is completed, set the credibility value of the additional WIFI network to 0, and switch to the previous WIFI network connection to ensure that after the information data transmission is completed, you can quickly switch to the WIFI network connection, and do not need to be re-connected. WIFI network connection operation.

As shown in FIG. 6 , an embodiment of the present invention further provides a data transmission device under a WIFI network, which is applied to a mobile terminal, and the device includes:

The identification module 61 is used to detect the current environment information of the mobile terminal;

In this embodiment, the environment information includes information about the geographic location where the mobile terminal is currently located and/or information about the current access network status of the mobile terminal. Among them, the geographic location information includes shopping mall environment, residential place, office place and so on. The network state information includes the network state of the access operator and the network state of the access non-operator.

The processing module 62 is configured to determine, according to the environmental information, the credibility information when the mobile terminal transmits information through the currently accessed WIFI network;

In this embodiment, the credibility information may be determined according to the credibility value of the preset geographic location information, the number of connections to the currently accessed WIFI network within the preset time period, network status information, and the like.

The detection module 63 is configured to detect the content of the information data that needs to be transmitted through the currently accessed WIFI network when the credibility information reaches a preset condition;

In this embodiment, the detection module 63 sends the content of the information data currently to be transmitted to the transmission module 64 for transmission when detecting that the content of the information data currently to be transmitted includes predetermined information content. The predetermined information content includes: the user's bank account number, ID number, contact information, and other information such as user name and password.

The transmission module 64 is configured to switch the currently accessed WIFI network to the terminal operator's network to transmit the information data if the content of the information data needs to be transmitted through the currently accessed WIFI network conforms to the predetermined information content.

In this embodiment, the transmission module 64 receives the content of the information data sent by the detection module 63, and switches the currently accessed WIFI network to the network of the terminal operator to transmit the information data. In this solution, when the credibility value of the currently accessed WIFI network is lower than the preset credibility value, the leakage of personal information and data of the user is avoided.

Further, the identification module 61 includes:

A first parsing unit 610, configured to parse the service set identifier of the currently accessed WIFI network to obtain first parsing information;

In this embodiment, the method of parsing the service set identifier of the WIFI network is described by taking the shopping mall environment as an example. For example, for a service set identifier containing a Chinese name, the method of directly extracting Chinese keywords is adopted. For a service set identifier named with a store name, the store name can be directly extracted as the first keyword. For the service set identifier including the alphabetic name, it can be parsed according to the way that the alphabet is compared with the Chinese pinyin, the Chinese pinyin therein is translated into the Chinese name, and the first keyword is obtained. For the service set identifier including the English name, the store name represented by the English name can be directly used as the first keyword.

a first obtaining unit 611, configured to obtain the first keyword in the first analysis information;

In this embodiment, the first keyword is a keyword representing environmental information where the mobile terminal is currently located. For example, if it is obtained by parsing that the first parsed information is the name of a certain clothing brand, the clothing brand name is extracted as the first keyword. According to the first keyword, it can be determined that the current environment information of the mobile terminal is the shopping mall environment.

The first identification unit 612 is configured to determine the current environment information of the mobile terminal according to the first keyword.

In this embodiment, the first identification unit 612 may match the first keyword with the judgment table of preset environmental information, and use the environmental information in the judgment table of preset environmental information corresponding to the first keyword as Information about the environment where the mobile terminal is currently located.

Further, the identification module 61 includes:

The second parsing unit 613 is configured to parse the service set identifiers of all currently accessible WIFI networks, and obtain second parsing information corresponding to the service set identifiers of each accessible WIFI network;

A second obtaining unit 614, configured to obtain the second keyword in each of the second analysis information;

The second identifying unit 615 is configured to determine the current environment information of the mobile terminal according to the second keyword.

In this embodiment, in the case where the corresponding environmental information cannot be determined only by parsing the service set identifier of the currently accessed WIFI network and obtaining the first keyword, the second parsing unit 613 can also analyze all currently accessible WIFI network information. The service set identifier of the incoming WIFI network is parsed, and the second keyword in the second parsing information corresponding to the service set identifier of each accessible WIFI network is acquired through the second acquiring unit 614 . The second identifying unit 615 determines the current environment information of the mobile terminal according to the plurality of second keywords.

Specifically, the second keywords corresponding to the preset number of WIFI networks may be screened out in descending order of signal strengths of currently accessible WIFI networks. Matching is performed according to the judgment table of the filtered second keyword and the preset environmental information, and the environmental information corresponding to the second keyword with the largest number is used as the current environmental information of the mobile terminal.

In addition, in order to shorten the parsing process of the service set identifier, the parsing process may be performed only on the service set identifier of the non-operator network, and/or after a preset number of WIFI networks are preferentially screened in descending order of signal strength, Perform analysis again.

It is worth noting that, the global positioning system (GPS) can also be used for direct positioning to obtain the current geographic location information of the mobile terminal.

Further, the processing module 62 includes:

a first matching unit 620, configured to match the environmental information with a reliability matching table of preset environmental information to obtain a first reliability value of the environmental information;

In this embodiment, in the credibility matching table of the preset environment information, the first credibility value of the public environment information (eg, shopping mall environment, hotel environment, etc.) can be set to a low value (eg, set to 1). ), the first reliability value of the residential environment information is set to a high value (for example: set to 10). In addition, the first reliability value setting may be correspondingly increased according to the increase in the number of connections to the same WIFI network in the same environment information. However, when it is determined that the environment information of the currently accessed WIFI network is public environment information, the first reliability value of the public environment information is initially reset to 1.

The first processing unit 621 is configured to determine the second reliability value of the currently accessed WIFI network according to the number of times the mobile terminal is connected to the currently accessed WIFI network within a preset time period;

In this embodiment, the second reliability value of the unconnected WIFI network is set to 1. According to the increase of the number of connections, the setting of the second reliability value is correspondingly increased (for example, the number of connections to detect the current WIFI network is 5, and the second reliability value is set to 3). In addition, the second reliability value may also be preset for a specific WIFI network. For example: the preset second reliability value of the currently accessed WIFI network is 10, and the second reliability value determined according to the number of connections is 1, then the average value of the two is taken to determine the current access WIFI network. The second confidence value is 5.5.

The second processing unit 622 is configured to determine, according to the first credibility value and the second credibility value, credibility information when the mobile terminal transmits information through the currently accessed WIFI network.

In this embodiment, the second processing unit 622 may calculate the average credibility value of the first credibility value and the second credibility value according to a preset weighting algorithm, and transmit it as the mobile terminal through the currently accessed WIFI network The credibility of the information at the time of the information.

Further, the device also includes:

The judging module 65 is configured to determine that the credibility information reaches a preset condition when the credibility value in the credibility information is less than a preset credibility value.

In this embodiment, the judging module 65 compares the credibility value in the credibility information with the preset credibility value (for example, the preset credibility value is set to 8). If the currently accessed WIFI network If the reliability value is 6, it is determined that the currently accessed WIFI network is an unsafe network (a network that transmits information data containing predetermined information content is not recommended); if the reliability value is 10, it is determined that the currently accessed WIFI network is The network is a secure network.

Specifically, the preset reliability value may be determined according to the preset information content level, application level, and the like. For example: setting of preset information content levels: the first level includes information data related to bank account numbers, personal property, etc.; the second level includes information data related to personal address, contact information, work unit, etc.; the third level includes user login Information and other related information data. Set the preset credibility value of instant messaging software, websites involving user login information, etc. that do not involve user funds and bank account information to between 5 and 8, and set the preset credibility values that do not involve user funds and bank account information. The degree value is set to be greater than 8, and the present invention is not limited to this.

Further, the detection module 63 includes:

A third obtaining unit 630, configured to obtain the content of the information data that needs to be transmitted through the currently accessed WIFI network;

The second matching unit 631 is configured to match the information data with the predetermined information content, and when the matching is successful, it is determined that the content of the information data that needs to be transmitted through the currently accessed WIFI network conforms to the predetermined information content;

In this embodiment, the predetermined information content includes: user personal information (eg, ID card information, address, contact information, etc.), user login information, bank account information, and the like. The predetermined information content is stored in the terminal in ciphertext.

When the credibility information reaches the preset condition, the detection module 63 establishes a data transmission detection thread to detect the content of the information data input by the user. The third acquisition unit 630 parses the content of the information data that the user needs to transmit. When the second matching unit 631 confirms that the content of the information data to be transmitted through the currently accessed WIFI network contains preset information content, the transmission module 64 Switch the currently accessed WIFI network to the terminal operator's network to transmit information and data.

It is worth noting that the transmission and detection of information data is controlled at the data transmission layer, that is, before the WIFI network needs to encapsulate and transmit data through data, the content of the information data is compared first, and then the information data is transmitted. Corresponding WIFI network or mobile data transmission data.

Specifically, when the credibility information reaches the preset condition, the detection module 63 firstly monitors the application program involving the preset information content and the high-security webpage such as the network protocol in the browser (only for the application program involving network services). and input), add a monitor to monitor the process generated by each application, and add a pre-made list of sensitive words (for example: bank account information, user personal information and user login information, etc.).

When it is detected that the user has opened a high-security application program such as a bank, an input detection thread is established to obtain the information data input by the user in the application program in real time. For example, the input detection thread acquires keywords (user login information, etc.) in the pre-made list of sensitive words by detecting the content of the homepage of the application. The data in the pre-made list of sensitive words is determined by analyzing whether the user inputs data content in the subsequent input of the user login information. For example, when a user enters the bank's application, the first step is to enter the user name and password. When it is confirmed that the user name and password are being entered, the currently connected WIFI network will be switched to the terminal operator's network. The transmission of the information data is performed.

In the browser, the data content on the web page such as the network protocol is detected by the detection thread. When the user is required to input the content of the information data, the content of the information data input by the user is determined. For example, the mailbox website can be detected according to the user's settings. When the user enters the data content on the home page of the mailbox, the input data content can be mainly detected. When it is detected that the user is operating in the user name and password fields, the current The accessed WIFI network is switched to the terminal operator's network to transmit the information data.

In the instant messaging application, the context content is detected by the detection thread. When it is detected that the context content contains the keywords in the pre-made list of sensitive words, the currently connected WIFI network is switched to the terminal operator's network to perform the process. transmission of content. For example, when judging the bank account number, ID number and other information in the context content, detect whether the obtained content is a series of numbers, and then detect the long series of data in the context content. The user name, password, etc. in the user login information are determined by fuzzy matching in the context content, and the transmission range can be narrowed through data mining algorithms.

In this embodiment, the reliability value of the WIFI network in the public environment is set to a low value, that is, the WIFI network in the public environment is an untrusted network. When it is detected that the mobile terminal is in a public environment, the reliability value of each reconnection to the current WIFI network is reset to 1. Restart to detect the bank application program, mailbox login and other information in the terminal. When keywords with bank account information, password, etc. are detected, switch the currently connected WIFI network to the terminal operator's network to carry out the information. transmission of data. A mapping table is set here, and the applications and inputs that need to be detected are set through the mapping table, such as banking applications, browsers, instant messaging software and other applications, and a pre-made list of sensitive words. When the content of the information data to be transmitted involves these contents in the mapping table, the information data is transmitted through the network of the terminal operator.

When switching the currently accessed WIFI network to the terminal operator's network to transmit the information data, the terminal operator's network to be switched to is added as an additional WIFI network to the list of currently accessible WIFI networks . The initial value of the credibility value of the additional WIFI network is set to 0, and when it is necessary to switch to the additional WIFI network for information data transmission, the credibility value of the additional WIFI network is set to 10, forming a double data transmission channel.

The data transmission channel is selected by judging whether the content of the information data to be transmitted conforms to the predetermined information content. Here, the data transmission priority needs to be set by means of software control. In the additional WIFI network, only the information data determined to meet the predetermined information content is transmitted, and the data burden of the user is not increased. When the information data transmission is completed, set the credibility value of the additional WIFI network to 0, and switch to the previous WIFI network connection to ensure that after the information data transmission is completed, you can quickly switch to the WIFI network connection, and do not need to be re-connected. WIFI network connection operation.

Further, the device also includes:

The switching module 66 is configured to switch the network of the terminal operator currently connected to the previously accessed WIFI network.

In this embodiment, when switching the currently accessed WIFI network to the terminal operator's network to transmit the information data, the transmission module 64 adds the terminal operator's network to be switched to as an additional WIFI network to the current The list of accessible WIFI networks. The initial value of the credibility value of the additional WIFI network is set to 0, and when it is necessary to switch to the additional WIFI network for information data transmission, the credibility value of the additional WIFI network is set to 10, forming a double data transmission channel.

The data transmission channel is selected by judging whether the content of the information data to be transmitted conforms to the predetermined information content. Here, the data transmission priority needs to be set by means of software control. In the additional WIFI network, only the information data determined to meet the predetermined information content is transmitted, and the data burden of the user is not increased. After the information data transmission is completed, the reliability value of the additional WIFI network is set to 0, and the currently connected operator's network is switched to the previous WIFI network connection through the switching module 66, so as to ensure that after the information data transmission is completed, You can quickly switch to the WIFI network connection, without the need to re-operate the WIFI network connection.

The above are the preferred embodiments of the present invention, and it should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications are also included in the present invention. within the scope of protection of the invention.

Claims (12)

1. A data transmission method under a WIFI network is applied to a mobile terminal, and is characterized by comprising the following steps:

analyzing a service set identifier currently accessed to a WIFI network, determining geographical position information of a mobile terminal currently accessed to the WIFI network, and matching the geographical position information of the mobile terminal currently accessed to the WIFI network with a reliability matching table of preset environment information to obtain a first reliability value of the geographical position information;

determining a second credibility value of the currently accessed WIFI network according to the connection times of the mobile terminal to the currently accessed WIFI network within a preset time period, and determining credibility information of the mobile terminal when the mobile terminal transmits information through the currently accessed WIFI network according to the first credibility value and the second credibility value;

judging whether the credibility information reaches a preset condition, and detecting the content of information data needing to be transmitted through the currently accessed WIFI network when the credibility information reaches the preset condition;

and if the content of the information data transmitted through the currently accessed WIFI network meets the preset information content, switching the currently accessed WIFI network to the network of the terminal operator.

2. The method of claim 1, wherein the step of determining the geographical location information of the mobile terminal currently accessing the WIFI network by analyzing the service set identifier currently accessing the WIFI network comprises:

analyzing a service set identifier of a currently accessed WIFI network to obtain first analysis information;

acquiring a first keyword in the first analysis information;

and determining the current geographical position information of the mobile terminal according to the first keyword.

3. The method of claim 1, further comprising:

analyzing the service set identifications of all the currently accessible WIFI networks to obtain second analysis information corresponding to the service set identification of each accessible WIFI network;

acquiring a second keyword in each second analysis message;

and determining the current geographic position information of the mobile terminal according to the second keyword.

4. The method of claim 1, wherein after the step of determining the credibility information of the mobile terminal when transmitting information through the currently accessed WIFI network, the method further comprises:

and when the credibility value in the credibility information is smaller than a preset credibility value, determining that the credibility information reaches a preset condition.

5. The method of claim 1, wherein the step of detecting the content requiring transmission of information data over the currently accessed WIFI network comprises:

acquiring the content of information data to be transmitted through the currently accessed WIFI network;

matching the information data with predetermined information content, and when the matching is successful, determining that the content of the information data needing to be transmitted through the currently accessed WIFI network conforms to the predetermined information content;

the preset information content comprises user personal information, user login information and bank account information.

6. The method of claim 1, wherein after the step of switching the currently accessed WIFI network to the network of the terminal operator for transmission of the information data, the method further comprises:

and switching the network of the currently connected terminal operator to the previously accessed WIFI network.

7. A data transmission device under a WIFI network is applied to a mobile terminal, and is characterized by comprising:

the identification module is used for analyzing a service set identifier currently accessed to the WIFI network, determining the geographical position information of the mobile terminal currently accessed to the WIFI network, and matching the geographical position information of the mobile terminal currently accessed to the WIFI network with a reliability matching table of preset environment information to obtain a first reliability value of the geographical position information;

the processing module is used for determining a second credibility value of the currently accessed WIFI network according to the connection times of the mobile terminal to the currently accessed WIFI network within a preset time period, and determining credibility information when the mobile terminal transmits information through the currently accessed WIFI network according to the first credibility value and the second credibility value;

the detection module is used for judging whether the reliability information reaches a preset condition or not, and detecting the content of information data which needs to be transmitted through the currently accessed WIFI network when the reliability information reaches the preset condition;

and the transmission module is used for switching the currently accessed WIFI network to the network of the terminal operator if the content of the information data transmitted through the currently accessed WIFI network meets the preset information content.

8. The apparatus of claim 7, wherein the identification module comprises:

the first analysis unit is used for analyzing the service set identifier of the currently accessed WIFI network to obtain first analysis information;

a first obtaining unit, configured to obtain a first keyword in the first analysis information;

and the first identification unit is used for determining the current geographical position information of the mobile terminal according to the first keyword.

9. The apparatus of claim 7, wherein the identification module comprises:

the second analysis unit is used for analyzing the service set identifications of all the currently accessible WIFI networks to obtain second analysis information corresponding to the service set identification of each accessible WIFI network;

a second obtaining unit, configured to obtain a second keyword in each piece of second parsing information;

and the second identification unit is used for determining the current geographic position information of the mobile terminal according to the second keyword.

10. The apparatus of claim 7, further comprising:

and the judging module is used for determining that the credibility information reaches a preset condition when the credibility value in the credibility information is smaller than a preset credibility value.

11. The apparatus of claim 7, wherein the detection module comprises:

the third acquisition unit is used for acquiring the content of the information data which needs to be transmitted through the currently accessed WIFI network;

the second matching unit is used for matching the information data with the preset information content, and when the matching is successful, the content of the information data needing to be transmitted through the currently accessed WIFI network is determined to accord with the preset information content;

the preset information content comprises user personal information, user login information and bank account information.

12. The apparatus of claim 7, further comprising:

and the switching module is used for switching the network of the currently connected terminal operator to the previously accessed WIFI network.

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