CN112235430B - Methods, devices and electronic equipment that hinder the collection of effective information - Google Patents

Abstract

This application provides a method, a device, and an electronic device that prevent the collection of effective information. The method includes: selecting a first MAC address; generating a probe frame, and controlling a wireless transmitter to send a wireless signal including the information of the probe frame. ; Wherein: the source address of the probe frame is the first MAC address. Using the method provided by the embodiments of this application, a large number of first MAC addresses can be constructed, and corresponding wireless signals including probe frame information can be generated; these wireless signals are collected by the collection device to form a large amount of fictitious terminal information, fictitious terminal information and The real terminal information is mixed, making it impossible or difficult for the collection equipment or subsequent data processing equipment to determine the number of real terminals, making it difficult to detect the number of users in the area.

Description

Methods, devices and electronic equipment that hinder the collection of effective information

Technical field

This application relates to the technical field of wireless local area networks, and specifically to a method and device for preventing a wireless access point from collecting user information; in addition, this application also provides an electronic device that implements the foregoing method.

Background technique

WIFI probe technology has been applied in places such as shopping malls and hotels to collect information from user terminals that are not connected to specific wireless access points, and use this information to evaluate supermarket passenger flow and create user portraits. In order to determine the profit points and customer group types of shopping malls or hotels, some operators privately place electronic devices in shopping malls and hotels to collect user terminal information.

Contents of the invention

This application provides a method and device that hinders the collection of valid information. By generating wireless signals including false information, the collection equipment collects false information and interferes with the identification of real and valid information.

On the one hand, this application provides a means to hinder the collection of valid information, including:

Select the first MAC address;

Generate a probe frame and control the wireless transmitter to send a wireless signal including information of the probe frame;

Wherein: the source address of the probe frame is the first MAC address.

Optionally, the generating a probe frame and controlling the wireless transmitter to send a wireless signal including the information of the probe frame includes:

Plan virtual location points to pass through in sequence;

Determine the transmission power corresponding to the virtual position point;

Generate the probe frame;

According to the sequence of the virtual location points, control the wireless transmitter to transmit the wireless signal containing the information of the probe frame according to the preset frequency and the corresponding transmission power; or,

Plan virtual location points to pass through in sequence;

Determine the transmission power corresponding to each virtual position point;

Generate the probe frame according to a preset frequency;

According to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal including the information of the probe frame according to the corresponding transmission power.

Optional, plan virtual location points to pass through in sequence, including:

Set movement speed;

The virtual position point is planned according to the moving speed and the preset frequency.

Optionally, the selecting the first MAC address includes: selecting the first MAC address within a preset MAC address segment.

Optionally, the preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment.

Optionally, the virtual location points that the plan passes through in sequence include:

Set movement speed;

The virtual position points to be passed sequentially are planned according to the moving speed and the preset frequency.

Optionally, planning the virtual position points to be passed sequentially according to the moving speed and the preset frequency includes:

The virtual position points to be passed sequentially are planned according to the moving speed, the preset frequency and environmental conditions.

Optionally, the generating a probe frame and controlling the wireless transmitter to send a wireless signal including the information of the probe frame includes:

Plan the virtual location points you are about to pass;

Determine the transmission power corresponding to the virtual position point;

The probe frame is generated, and the wireless transmitter is controlled to transmit the wireless signal according to the transmission power.

Optionally, determining the transmission power corresponding to the virtual location point includes:

The number of the wireless transmitter is one;

The transmission power corresponding to the virtual location point is determined according to the distance from the virtual location point to the wireless transmitter; wherein the transmission power is inversely related to the distance from the virtual location point to the wireless transmitter. relation.

Optionally, determining the transmission power corresponding to the virtual location point includes:

The number of wireless transmitters is multiple;

The transmit power corresponding to the virtual position point is determined according to the distance from the virtual position point to the nearest wireless transmitter; wherein the transmit power and the distance from the virtual position point to the nearest wireless transmitter are equal to The corresponding ones show an inverse correlation;

The controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:

The wireless transmitter closest to the virtual location point is controlled to transmit the wireless signal according to the transmission power.

This application provides a device that hinders the collection of valid information, including:

an address determination unit, used to select the first MAC address;

Wireless transmitter for transmitting wireless signals;

A signal generation unit, configured to generate a probe frame and control the wireless transmitter to send a wireless signal including information of the probe frame;

Wherein: the source address of the probe frame is the first MAC address.

Optionally, the signal generation unit generates a probe frame, and controls the wireless transmitter to send a wireless signal including the information of the probe frame, including:

Plan virtual location points to pass through in sequence;

Determine the transmission power corresponding to the virtual position point;

Generate the probe frame;

According to the sequence of the virtual location points, control the wireless transmitter to transmit the wireless signal containing the information of the probe frame according to the preset frequency and the corresponding transmission power; or,

Plan virtual location points to pass through in sequence;

Determine the transmission power corresponding to each virtual position point;

Generate the probe frame according to a preset frequency;

According to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal including the information of the probe frame according to the corresponding transmission power.

Optionally, the virtual location points that the plan passes through in sequence include:

Set movement speed;

The virtual position point is planned according to the moving speed and the preset frequency.

Optionally, the selecting the first MAC address includes: selecting the first MAC address within a preset MAC address segment.

Optionally, the preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment.

Optionally, the virtual location points that the plan passes through in sequence include:

Set movement speed;

The virtual position points to be passed sequentially are planned according to the moving speed and the preset frequency.

Optionally, planning the virtual position points to be passed sequentially according to the moving speed and the preset frequency includes:

The virtual position points to be passed sequentially are planned according to the moving speed, the preset frequency and environmental conditions.

Optionally, the generating a probe frame and controlling the wireless transmitter to send a wireless signal including the information of the probe frame includes:

Plan the virtual location points you are about to pass;

Determine the transmission power corresponding to the virtual position point;

The probe frame is generated, and the wireless transmitter is controlled to transmit the wireless signal according to the transmission power.

Optionally, determining the transmit power corresponding to the virtual location point includes:

The number of the wireless transmitter is one;

The transmission power corresponding to the virtual location point is determined according to the distance from the virtual location point to the wireless transmitter; wherein the transmission power is inversely related to the distance from the virtual location point to the wireless transmitter. relation.

Optionally, determining the transmission power corresponding to the virtual location point includes:

The number of wireless transmitters is multiple;

The transmit power corresponding to the virtual position point is determined according to the distance from the virtual position point to the nearest wireless transmitter; wherein the transmit power and the distance from the virtual position point to the nearest wireless transmitter are equal to The corresponding ones show an inverse correlation;

The controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:

The wireless transmitter closest to the virtual location point is controlled to transmit the wireless signal according to the transmission power.

On the other hand, the present application provides an electronic device, including a controller and a wireless transmitter;

The wireless transmitter is used to transmit wireless signals;

The controller is configured to perform the method of hindering the collection of effective information as described above.

Using the method provided by the embodiments of this application, a large number of first MAC addresses can be constructed, and corresponding wireless signals including probe frame information can be generated; these wireless signals are collected by the collection device to form a large amount of fictitious terminal information, fictitious terminal information and The real terminal information is mixed, making it impossible or difficult for the collection equipment or subsequent data processing equipment to determine the number of real terminals, making it difficult to detect the number of users in the area.

Description of drawings

Figure 1 is a flow chart of a method for hindering the collection of effective information provided in Embodiment 1;

Figure 2 is a flow chart of a method for hindering the collection of effective information provided in Embodiment 2;

Figure 3 is a schematic diagram of the principle method for determining the transmission power corresponding to the virtual position point;

Figure 4 is a flow chart of a method for hindering the collection of effective information provided in Embodiment 3;

Figure 5 is a flow chart of a device for hindering the collection of effective information provided in Embodiment 4;

Among them: 11-address determination unit, 12-signal generation unit, 13-wireless transmitter.

Detailed ways

The present application will be further described in detail below in conjunction with the accompanying drawings and examples. It can be understood that the specific embodiments described here are only used to explain the relevant invention, but not to limit the invention. It should also be noted that, for convenience of description, only the parts related to the invention are shown in the drawings.

Embodiments of the present application provide a method to hinder the collection of effective information by generating forged probe frames and corresponding wireless signals, and then adding interference information to the information collected by the collection terminal, thereby preventing the collection terminal from collecting effective information.

Embodiment 1

Figure 1 is a flow chart of a method for preventing the collection of effective information provided in Embodiment 1. This method can be applied to gateway devices such as wireless routers, or to a type of electronic equipment that only transmits wireless signals. The following is Taking the wireless router as the execution subject, the method of this embodiment is introduced. As shown in Figure 1, the method provided by this embodiment includes steps S101-S103.

S101: Select the first MAC address.

When the wireless router works, it selects the first MAC address according to predetermined rules. The first MAC address is not the MAC address that is burned into the hardware of the wireless router when it leaves the factory and identifies the wireless router's own information, but a randomly constructed MAC address that represents the station (Station, STA); the first MAC address can be The MAC addresses of various possible user terminals can be, for example, the MAC addresses collected by smartphones or the MAC addresses used for laptops.

It should be noted that selecting the first MAC address does not mean that the first MAC address has been stored in the wireless router; in actual applications, the router may store optional MAC address segment information, and select the first MAC address within the MAC address segment; in actual applications, In application, it is preferable to select the first MAC address randomly.

S102: Generate a probe frame.

The wireless router generates a probe frame according to the rule protocol; the source address of the probe frame is the first MAC address.

A probe frame is a data frame sent by a wireless user terminal and includes a source MAC address. It is mainly used to notify surrounding wireless access points (Wireless Access Points, APs) that they may have connection requirements. Taking the wireless router using the wifi protocol as an example, the wireless router generates a Probe Request frame. In addition to the first MAC address, the Probe Request frame also includes identification information that it is a Probe Request frame.

S103: Control the wireless transmitter to send a wireless signal including information of the probe frame.

After generating the probe frame, the wireless transmitter in the wireless router modulates the probe frame to generate a wireless signal and radiates it to the environment. If there is a collection device within the coverage area of the wireless signal; after the wireless signal is received and processed by the signal receiver of such device, the first MAC address is stored as the MAC address of a real user terminal.

If the wireless router randomly constructs a large number of first MAC addresses and generates corresponding wireless signals including probe frame information; these wireless signals are collected by the collection device to form a large amount of fictitious terminal information, and the fictitious terminal information and real terminal information are mixed, making The collection equipment or subsequent data processing equipment cannot or is difficult to determine the number of real terminals, making it difficult to detect the number of users in the area.

Embodiment 2

Figure 2 is a flow chart of a method for preventing the collection of effective information provided in Embodiment 2. As shown in Figure 2, the method provided by this embodiment includes steps S201-S205.

Before introducing the method of this embodiment, possible implementation scenarios of this method are first introduced. Here we still take the user terminal (that is, the station), the wireless router and the collection device to communicate using the WIFI protocol as an example.

When the WIFI device of the user terminal is turned on, if it is not connected to a specific wireless network access point, Probe Request frames and corresponding wireless signals will be generated at intervals to notify surrounding WIFI devices that there may be a need for connection.

If the user terminal is in a mobile state (that is, the user carrying the user terminal is in a mobile state), and the location of the wireless router and the collection device is fixed, the Probe Request frame sent by the same device collected by the wireless router and the collection device at different times will The signal strengths are different, and the collected signal strengths show specific patterns as the mobile position of the user terminal changes.

If the wireless router always transmits wireless signals including the first MAC address at the same transmit power or with no specific power, and the collection device collects wireless signals for a long time, the first MAC address can be determined by comparing the signal strength corresponding to the first MAC address. The MAC address is the MAC address of the false terminal; after determining that the first MAC address is the MAC address of the false terminal, the collection device can discard this MAC address and store the collected MAC address whose signal strength changes according to a specific rule as the MAC address of the real terminal. .

S201: Select the first MAC address.

When the wireless router works, it selects the first MAC address according to predetermined rules. It should be noted that the first MAC address is not the MAC address that is burned into the hardware of the wireless router when it leaves the factory and identifies the wireless router's own information, but a randomly constructed MAC address that represents the station (Station, STA); the first MAC The address can be the MAC address of various possible user terminals, for example, it can be a MAC address used for intelligent collection, or it can be a MAC address used for a laptop;

Selecting the first MAC address does not mean that the first MAC address has been stored in the wireless router; in actual applications, the router may store optional MAC address segment information, and select the first MAC address within the MAC address segment; in actual applications, Preferably, the first MAC address is selected randomly.

S202: Plan virtual location points to pass through in sequence.

In this embodiment, it is necessary to construct a virtual user terminal identified by the first MAC; and the aforementioned virtual location points are multiple location points on the virtual path passed by the virtual user terminal.

S203: Determine the transmission power corresponding to the virtual position point.

The transmission power described here does not refer to the transmission power transmitted by the virtual user terminal, but the corresponding transmission power when the wireless router transmits wireless signals.

Figure 3 is a schematic diagram of the principle method for determining the transmission power corresponding to the virtual position point. As shown in Figure 3. The dotted line is the virtual path through which the virtual user terminal passes through the venue area. Multiple location points are selected on the virtual path as virtual location points.

As shown in Figure 3, the virtual location point, wireless router and collection device form a triangle (or on the same straight line). Because the length of one side of the triangle is determined (the distance from the wireless router to the collection device is determined), different virtual location points There is a certain correlation between the distance change to the wireless router and the distance from the virtual location point to the corresponding collection device. Correspondingly, the signal strengths of Probe Request frames sent by real user terminals at different virtual locations collected by the wireless router and the collection device show a correlation. Correspondingly, if a wireless router is used to transmit false Probe Request frames, the required transmission power can be determined based on the distance from the wireless router to the virtual location point, so that the signal strength of the wireless signal including the Probe Request frame received by the receiving device appears to that of the real user. The signal strength variation characteristics of the Probe Request frame sent by the terminal passing through each virtual location point.

In the embodiment of the present application, the transmission power corresponding to each virtual location point is determined according to the distance between the virtual location point and the wireless transmitter, and the transmission power has an inverse correlation with the distance between the virtual location point and the wireless transmitter.

S204: Generate a probe frame.

The wireless router generates a Probe request frame (probe frame) according to the WIFI rule protocol; the source address of the probe frame is the first MAC address.

S205: According to the sequence of virtual location points, control the wireless transmitter to transmit wireless signals according to the preset frequency and corresponding transmission power.

After the wireless router transmits wireless signals according to the predetermined transmission frequency, the wireless signals are received by the receiving device in turn; because the wireless signals sent at different times have different powers, after the wireless signals are received by the receiving device at different times, the signal strength determined by the receiving device is also The positions of the virtual user terminals determined in different ways are different. Because the signal strength changes of each wireless signal received by the receiving device are sequentially related to the positions of the set virtual location points, the wireless device cannot determine that the corresponding wireless signal is a wireless signal sent by a real user terminal by analyzing the signal strength changes. It is also a false wireless signal sent by the user terminal, so it is impossible to identify whether the user information identified based on each wireless signal is false information.

According to the foregoing analysis, it can be seen that the embodiment of the present application first plans the virtual location points passed by, determines the corresponding transmission power according to the planned virtual location points, and sequentially transmits wireless signals including the first MAC address according to the virtual location points and the corresponding transmission power. signal, so that the strength characteristics of each wireless signal received by the receiving device are similar to the strength characteristics of the wireless signal emitted by a real mobile terminal when it moves. Therefore, the user terminal cannot identify whether it is a real mobile terminal based on the signal strength, and it is impossible to collect effective information. .

It should be noted that there is no direct correlation between planning the virtual location points to be passed sequentially, determining the corresponding generation power, and selecting the first MAC address. Therefore, in other embodiments, the virtual locations to be passed sequentially may also be planned first. Click and the corresponding transmit power, and then select the first MAC address, that is, the aforementioned S201 can be placed after S203.

In the method for preventing the collection of effective information provided by the embodiments of the present application, the wireless router stores the probe frame after generating the probe frame, and transmits a wireless signal including the information of the probe frame according to the preset frequency and transmission power; in other implementations In this example, the probe frame can also be generated according to the preset frequency, and then the wireless transmitter is controlled to transmit the wireless signal including the probe frame information according to the corresponding transmission power in the order of the virtual location points; that is, the wireless router does not store the probe frame. , instead generating probe frames at any time.

According to the usage rules of MAC addresses, IEEE allocates MAC addresses in different sections to various equipment manufacturers, and the MAC addresses allocated by different equipment manufacturers can be queried. If the first MAC address is set to a MAC address used by non-local and non-common devices, the collection device can quickly determine that the corresponding wireless signal is an interference signal sent by a false terminal through the first MAC address, and can discard the signal. Information corresponding to the first MAC address.

In order to avoid the problems that occurred in the previous section, in the embodiment of the present application, selecting the first MAC address can be optimized as follows: selecting the first MAC address within a preset MAC address segment; where the preset MAC address segment is allocated to a specific equipment manufacturer. Address segment, and devices produced by specific device manufacturers are heavily used in the collection area of the collection device. In this way, because the corresponding wireless signal cannot be identified as a signal sent by a false user terminal through the first MAC address, it is also impossible to identify whether the information in the wireless signal is real information or false information.

Furthermore, terminal equipment produced by different equipment manufacturers may set different detection frame frequencies. In order to prevent the collection equipment from determining that the received wireless signal is a signal sent by a false user terminal based on the frequency and the corresponding first AMC address, as mentioned above The preset frequency can be set to the detection frame frequency of the real terminal corresponding to the preset MAC address segment, that is, the detection frame frequency of the user terminal produced by a specific equipment manufacturer.

Furthermore, the aforementioned planned virtual position points to pass through in sequence include: setting the moving speed, and planning the virtual position points to pass through in sequence according to the preset frequency segment and moving speed; it should be noted that the aforementioned moving speed can be a fixed value. The changing speed can also be a changing speed; in specific applications, it is preferable to set the moving speed to a speed that changes randomly within a certain interval, so as to simulate as much as possible the movement of a user carrying a real user terminal.

In addition, planning virtual location points may also need to take into account environmental conditions in addition to moving speed and preset frequency. Taking the method provided in this embodiment applied to a park as an example, if there is a pond in the park, and it is impossible for the real user terminal to pass through the pond, it is necessary to avoid setting the virtual location point in the area corresponding to the pond.

It should also be noted that in actual applications, the path formed by the collection device based on the collected wireless signals may have systematic deviations from the path formed by the real user terminal passing by in the real environment; for example: in the aforementioned park scenario, the collection path The path determined by the device based on the wireless signal sent by the real user terminal will not pass through the pond, but the path determined by the wireless signal sent by the fake user terminal will pass through the pond. In order to avoid the collection equipment using systematic deviations to determine false information, the system systematic errors can also be corrected through pre-testing, that is, the position of the virtual location point can be corrected.

It should be noted that in the implementation of this application, the number of wireless transmitters of the wireless router may be one or multiple. When the number of wireless transmitters is one, determining the transmission power corresponding to the virtual location point is to determine the transmission power directly based on the distance from the virtual location point to the wireless transmitter. When there are multiple wireless transmitters, the transmission power may be determined based on the distance from the virtual location point to the nearest wireless transmitter.

Embodiment 3

Figure 4 is a flow chart of a method for preventing the collection of effective information provided in Embodiment 3. As shown in Figure 4, the method provided by this embodiment includes steps S301-S304

S301: Select the first MAC address.

S302: Plan the virtual location point to be passed.

The principle of planning virtual location points in this embodiment is similar to that in Embodiment 2, and will not be repeated here. However, what is different from Embodiment 2 is that this embodiment does not plan in advance all the virtual position points that simulate the movement of the real mobile terminal, but only plans the virtual position points that are about to pass.

S303: Determine the transmission power corresponding to the virtual location point.

The transmission power described here does not refer to the transmission power transmitted by the virtual user terminal, but the corresponding transmission power when the wireless router transmits wireless signals.

As shown in Figure 3. The dotted line is the virtual path through which the virtual user terminal passes through the venue area. Multiple location points are selected on the virtual path as virtual location points.

As shown in Figure 3, the virtual location point, wireless router and collection device form a triangle (or on the same straight line). Because the length of one side of the triangle is determined (the distance from the wireless router to the collection device is determined), different virtual location points There is a certain correlation between the distance change to the wireless router and the distance from the virtual location point to the corresponding collection device. Correspondingly, the signal strengths of Probe Request frames sent by real user terminals at different virtual locations collected by the wireless router and the collection device show a correlation. Correspondingly, if a wireless router is used to transmit false Probe Request frames, the required transmission power can be determined based on the distance from the wireless router to the virtual location point, so that the signal strength of the wireless signal including the Probe Request frame received by the receiving device appears to that of the real user. The signal strength variation characteristics of the Probe Request frame sent by the terminal passing through each virtual location point.

In the embodiment of the present application, the transmission power corresponding to each virtual location point is determined according to the distance between the virtual location point and the wireless transmitter, and the transmission power has an inverse correlation with the distance between the virtual location point and the wireless transmitter.

S304: Generate a probe frame and control the wireless transmitter to transmit wireless signals according to the transmission power; then, continue to execute S302, or end.

In the method provided by this embodiment to hinder the collection of effective information, all virtual position points on the virtual path such as shown in Figure 3 are not planned at once. Instead, only one virtual position point is planned. According to the corresponding power of the virtual position point After transmitting the wireless signal, the next virtual location point and the corresponding transmission power are planned.

After the wireless router transmits wireless signals according to the predetermined transmission frequency, the wireless signals are received by the receiving device in turn; because the wireless signals sent at different times have different powers, after the wireless signals are received by the receiving device at different times, the signal strength determined by the receiving device is The positions of the virtual user terminals determined in different ways are different. Because the signal strength changes of each wireless signal received by the receiving device are sequentially related to the positions of the set virtual location points, the wireless device cannot determine that the corresponding wireless signal is a wireless signal sent by a real user terminal by analyzing the signal strength changes. It is also a false wireless signal sent by the user terminal, so it is impossible to identify whether the user information identified based on each wireless signal is false information.

According to the foregoing analysis, it can be seen that the embodiment of the present application first plans the virtual location points passed by, determines the corresponding transmission power according to the planned virtual location points, and sequentially transmits wireless signals including the first MAC address according to the virtual location points and the corresponding transmission power. signal, so that the strength characteristics of each wireless signal received by the receiving device are similar to the strength characteristics of the wireless signal emitted by a real mobile terminal when it moves. Therefore, the user terminal cannot identify whether it is a real mobile terminal based on the signal strength, and it is impossible to collect effective information. .

According to the usage rules of MAC addresses, IEEE allocates MAC addresses in different sections to various equipment manufacturers, and the MAC addresses allocated by different equipment manufacturers can be queried. If the first MAC address is set to a MAC address used by non-local and non-common devices, the collection device can quickly determine that the corresponding wireless signal is an interference signal sent by a false terminal through the first MAC address, and can discard the signal. Information corresponding to the first MAC address.

In order to avoid the problems that occurred in the previous section, in the embodiment of the present application, selecting the first MAC address can be optimized as follows: selecting the first MAC address within a preset MAC address segment; where the preset MAC address segment is allocated to a specific equipment manufacturer. Address segment, and devices produced by specific device manufacturers are heavily used in the collection area of the collection device. In this way, because the corresponding wireless signal cannot be identified as a signal sent by a false user terminal through the first MAC address, it is also impossible to identify whether the information in the wireless signal is real information or false information.

Furthermore, terminal equipment produced by different equipment manufacturers may set different detection frame frequencies. In order to prevent the collection equipment from determining that the received wireless signal is a signal sent by a false user terminal based on the frequency and the corresponding first AMC address, as mentioned above The preset frequency can be set to the detection frame frequency of the real terminal corresponding to the preset MAC address segment, that is, the detection frame frequency of the user terminal produced by a specific equipment manufacturer.

It should be noted that in this embodiment, the location of the virtual location point that is planned to be passed should be related to the location of the virtual location point that has been planned at the latest moment, so as to avoid fluctuations in the transmission power and cause the corresponding wireless signal to be identified. Issues with signaling for false terminals.

In addition, planning virtual location points may also need to take into account environmental conditions in addition to moving speed and preset frequency. Taking the method provided in this embodiment applied to a park as an example, if there is a pond in the park, and it is impossible for the real user terminal to pass through the pond, it is necessary to avoid setting the virtual location point in the area corresponding to the pond.

It should also be noted that in actual applications, the path formed by the collection device based on the collected wireless signals may have systematic deviations from the path formed by the real user terminal passing by in the real environment; for example: in the aforementioned park scenario, the collection path The path determined by the device based on the wireless signal sent by the real user terminal will not pass through the pond, but the path determined by the wireless signal sent by the fake user terminal will pass through the pond. In order to avoid the collection equipment using systematic deviations to determine false information, the system systematic errors can also be corrected through pre-testing, that is, the position of the virtual location point can be corrected.

It should be noted that in the implementation of this application, the number of wireless transmitters of the wireless router may be one or multiple. When the number of wireless transmitters is one, determining the transmission power corresponding to the virtual location point is to determine the transmission power directly based on the distance from the virtual location point to the wireless transmitter. When there are multiple wireless transmitters, the transmission power may be determined based on the distance from the virtual location point to the nearest wireless transmitter.

In addition to providing the aforementioned method for preventing the collection of effective information, the present application also provides a device for preventing the collection of effective information.

Embodiment 4

FIG. 5 is a flow chart of a device for preventing the collection of effective information provided in Embodiment 4. As shown in FIG. 5 , the device that hinders the collection of valid information includes an address determination unit 11 , a wireless transmitter 12 and a signal generation unit 13 .

The address determination unit 11 is used to select a first MAC address; the wireless transmitter 12 is used to transmit a wireless signal; the signal generation unit 13 is used to generate a probe frame and control the wireless transmitter 12 to send a wireless signal including the information of the probe frame ; Wherein: the source address of the probe frame is the first MAC address.

In a more specific embodiment, the signal generation unit 13 generates a probe frame, and controls the wireless transmitter 12 to send a wireless signal including the information of the probe frame, including: planning virtual position points to pass through in sequence; determining the virtual position transmit power corresponding to the point; generate a probe frame; according to the sequence of the virtual position points, control the wireless transmitter 12 to transmit a wireless signal containing the information of the probe frame according to the preset frequency and the corresponding transmit power;

In another more specific embodiment, the signal generation unit 13 generates a probe frame, and controls the wireless transmitter 12 to send a wireless signal including the information of the probe frame, including: planning virtual position points to pass through in sequence; determining each transmit power corresponding to each virtual position point; generate a probe frame according to a preset frequency; and control the wireless transmitter 12 to transmit information wireless signals including the probe frame according to the corresponding transmission power according to the sequence of the virtual position points.

In some embodiments, planning virtual position points to pass through in sequence includes: setting a moving speed; planning virtual position points according to the moving speed and a preset frequency.

In some embodiments, selecting the first MAC address includes: selecting the first MAC address within a preset MAC address segment.

In some embodiments, the preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment.

In some embodiments, planning virtual position points to be passed in sequence includes: setting a moving speed; planning virtual position points to be passed in sequence according to the moving speed and a preset frequency.

In some embodiments, planning virtual location points to be passed in sequence based on movement speed and preset frequency includes: planning virtual location points to be passed in sequence based on movement speed, preset frequency, and environmental conditions.

In some embodiments, generating a probe frame and controlling the wireless transmitter 12 to send a wireless signal including information of the probe frame includes: planning the virtual location point to be passed; determining the transmission power corresponding to the virtual location point; and generating the probe frame. , controlling the wireless transmitter 12 to transmit wireless signals according to the transmission power.

In the aforementioned embodiment, the number of wireless transmitters 12 may be one; correspondingly, determining the transmission power corresponding to the virtual location point may include:

The transmission power corresponding to the virtual location point is determined according to the distance from the virtual location point to the wireless transmitter 12; wherein, the transmission power has an inverse correlation with the distance from the virtual location point to the wireless transmitter 12.

In the foregoing embodiments, the number of wireless transmitters 12 is multiple; correspondingly, determining the transmission power corresponding to the virtual location point may also include: determining the transmission power corresponding to the virtual location point according to the distance from the virtual location point to the nearest wireless transmitter 12 Power; wherein, the transmission power has an inverse correlation with the distance from the virtual location point to the nearest wireless transmitter 12 and the corresponding;

Controlling the wireless transmitter 12 to transmit wireless signals according to the transmission power includes:

The wireless transmitter 12 closest to the virtual location point is controlled to transmit wireless signals according to the transmission power.

The present application provides an electronic device, including a controller and a wireless transmitter; the wireless transmitter is used to transmit wireless signals; and the controller is used to perform the method of hindering the collection of effective information provided by the foregoing embodiments.

A1. A method that hinders the collection of valid information, including:

Select the first MAC address;

Generate a probe frame and control the wireless transmitter to send a wireless signal including information of the probe frame;

Wherein: the source address of the probe frame is the first MAC address.

A2. According to the method of hindering the collection of effective information described in A1, generating a probe frame and controlling the wireless transmitter to send a wireless signal including the information of the probe frame includes:

Plan virtual location points to pass through in sequence;

Determine the transmission power corresponding to the virtual position point;

Generate the probe frame;

According to the sequence of the virtual location points, control the wireless transmitter to transmit the wireless signal containing the information of the probe frame according to the preset frequency and the corresponding transmission power; or,

Plan virtual location points to pass through in sequence;

Determine the transmission power corresponding to each virtual position point;

Generate the probe frame according to a preset frequency;

According to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal including the information of the probe frame according to the corresponding transmission power.

A3. According to the method described in A2 to prevent the collection of effective information, plan the virtual location points to be passed in sequence, including:

Set movement speed;

The virtual position point is planned according to the moving speed and the preset frequency.

A4. According to the method of hindering the collection of effective information described in A2 or A3, the selecting the first MAC address includes: selecting the first MAC address within a preset MAC address segment.

A5. According to the method of hindering the collection of effective information according to 4, the preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment.

A6. According to the method of preventing the collection of effective information described in A4, the virtual location points that the plan passes through in sequence include:

Set movement speed;

The virtual position points to be passed sequentially are planned according to the moving speed and the preset frequency.

A7. According to the method of hindering the collection of effective information described in A6, the virtual location points to be passed sequentially are planned according to the moving speed and the preset frequency, including:

The virtual position points to be passed sequentially are planned according to the moving speed, the preset frequency and environmental conditions.

A8. According to the method of hindering the collection of effective information described in A1, the generating a probe frame and controlling the wireless transmitter to send a wireless signal including the information of the probe frame includes:

Plan the virtual location points you are about to pass;

Determine the transmission power corresponding to the virtual position point;

The probe frame is generated, and the wireless transmitter is controlled to transmit the wireless signal according to the transmission power.

A9. According to the method described in A2 or A8 that hinders the collection of effective information, determine the transmit power corresponding to the virtual location point, including:

The number of the wireless transmitter is one;

The transmission power corresponding to the virtual location point is determined according to the distance from the virtual location point to the wireless transmitter; wherein the transmission power is inversely related to the distance from the virtual location point to the wireless transmitter. relation.

A10. According to the method described in A2 or A8 that hinders the collection of effective information, determine the transmit power corresponding to the virtual location point, including:

The number of wireless transmitters is multiple;

The transmit power corresponding to the virtual position point is determined according to the distance from the virtual position point to the nearest wireless transmitter; wherein the transmit power and the distance from the virtual position point to the nearest wireless transmitter are equal to The corresponding ones show an inverse correlation;

The controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:

The wireless transmitter closest to the virtual location point is controlled to transmit the wireless signal according to the transmission power.

A11. A device that hinders the collection of valid information, including:

an address determination unit, used to select the first MAC address;

Wireless transmitter for transmitting wireless signals;

A signal generation unit, configured to generate a probe frame and control the wireless transmitter to send a wireless signal including information of the probe frame;

Wherein: the source address of the probe frame is the first MAC address.

A12. The device for preventing the collection of effective information according to A11, characterized in that,

The signal generation unit generates a probe frame and controls the wireless transmitter to send a wireless signal including the information of the probe frame, including:

Plan virtual location points to pass through in sequence;

Determine the transmission power corresponding to the virtual position point;

Generate the probe frame;

According to the sequence of the virtual location points, control the wireless transmitter to transmit the wireless signal containing the information of the probe frame according to the preset frequency and the corresponding transmission power; or,

Plan virtual location points to pass through in sequence;

Determine the transmission power corresponding to each virtual position point;

Generate the probe frame according to a preset frequency;

According to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal including the information of the probe frame according to the corresponding transmission power.

A13. According to the device that hinders the collection of valid information as described in A12,

The virtual location points that the plan passes through in sequence include:

Set movement speed;

The virtual position point is planned according to the moving speed and the preset frequency.

A14. According to the device for preventing the collection of effective information according to A12 or 13, the selecting the first MAC address includes: selecting the first MAC address within a preset MAC address segment.

A15. According to the device for preventing the collection of effective information according to A14, the preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment.

A16. According to the device for preventing the collection of effective information as described in A14, the virtual location points that the plan passes through in sequence include:

Set movement speed;

The virtual position points to be passed sequentially are planned according to the moving speed and the preset frequency.

A17. According to the device that hinders the collection of effective information as described in A16, the virtual position points that are planned to be passed sequentially according to the moving speed and the preset frequency include:

The virtual position points to be passed sequentially are planned according to the moving speed, the preset frequency and environmental conditions.

A18. According to the device for preventing the collection of effective information according to A11, the generating a probe frame and controlling the wireless transmitter to send a wireless signal including the information of the probe frame includes:

Plan the virtual location points you are about to pass;

Determine the transmission power corresponding to the virtual position point;

The probe frame is generated, and the wireless transmitter is controlled to transmit the wireless signal according to the transmission power.

A19. According to the device for hindering the collection of effective information as described in A12 or 18, the determination of the transmission power corresponding to the virtual position point includes:

The number of the wireless transmitter is one;

The transmission power corresponding to the virtual location point is determined according to the distance from the virtual location point to the wireless transmitter; wherein the transmission power is inversely related to the distance from the virtual location point to the wireless transmitter. relation.

A20 determines the transmit power corresponding to the virtual location point based on the device described in A12 or A18 that hinders the collection of effective information, including:

The number of wireless transmitters is multiple;

The transmit power corresponding to the virtual position point is determined according to the distance from the virtual position point to the nearest wireless transmitter; wherein the transmit power and the distance from the virtual position point to the nearest wireless transmitter are equal to The corresponding ones show an inverse correlation;

The controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:

The wireless transmitter closest to the virtual location point is controlled to transmit the wireless signal according to the transmission power.

A21. An electronic device, including a controller and a wireless transmitter;

The wireless transmitter is used to transmit wireless signals;

The controller is configured to perform the method of hindering the collection of effective information as described in any one of A1-10.

In the above embodiments, each embodiment is described with its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the device for controlling network usage behavior described above can be referred to the corresponding process in the foregoing method embodiment, and will not be described again here.

It should be noted that the algorithms and displays provided in the embodiments are not inherently related to any particular computer, virtual system, or other device. Various general-purpose systems can also be used with teaching based on this. From the above description, the structure required to construct such a system is obvious. Furthermore, this invention is not specific to any specific programming language. It should be understood that a variety of programming languages may be utilized to implement the invention described herein, and that the above descriptions of specific languages are intended to disclose the best mode of carrying out the invention.

In the instructions provided here, a number of specific details are described. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this description.

Similarly, it is to be understood that in the above description of exemplary embodiments of the invention, in order to streamline the disclosure and aid in the understanding of one or more of the various inventive aspects, various features of the invention are sometimes grouped together into a single embodiment. figure, or its description. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will understand that modules in the devices in the embodiment can be adaptively changed and arranged in one or more devices different from that in the embodiment. The modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method so disclosed may be employed in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of the equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features of different embodiments are meant to be within the scope of the invention. within and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

Claims (19)

1. A method that hinders the collection of effective information, characterized by: Select the first MAC address; Generate a probe frame and control the wireless transmitter to send a wireless signal including information of the probe frame; Wherein: the source address of the probe frame is the first MAC address; Generating a probe frame and controlling the wireless transmitter to send a wireless signal including information of the probe frame includes: Plan virtual location points to pass through in sequence; Determine the transmission power corresponding to the virtual position point; Generate the probe frame; According to the sequence of the virtual location points, control the wireless transmitter to transmit the wireless signal containing the information of the probe frame according to the preset frequency and the corresponding transmission power; or, Plan virtual location points to pass through in sequence; Determine the transmission power corresponding to each virtual position point; Generate the probe frame according to a preset frequency; According to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal including the information of the probe frame according to the corresponding transmission power. 2. The method of preventing the collection of effective information according to claim 1, characterized in that: Plan virtual locations to pass through in sequence, including: Set movement speed; The virtual position point is planned according to the moving speed and the preset frequency. 3. The method of hindering the collection of effective information according to 1 or 2, characterized by: The selecting the first MAC address includes: selecting the first MAC address within a preset MAC address segment. 4. The method of hindering the collection of effective information according to 3, characterized in that, The preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment. 5. The method of preventing the collection of effective information according to claim 3, characterized in that: The virtual location points that the plan passes through in sequence include: Set movement speed; The virtual position points to be passed sequentially are planned according to the moving speed and the preset frequency. 6. The method of preventing the collection of effective information according to claim 5, characterized in that: The virtual position points that are planned to be passed sequentially according to the moving speed and the preset frequency include: The virtual position points to be passed sequentially are planned according to the moving speed, the preset frequency and environmental conditions. 7. The method of preventing the collection of effective information according to claim 1, wherein the generating a probe frame and controlling the wireless transmitter to send a wireless signal including the information of the probe frame includes: Plan the virtual location points you are about to pass; Determine the transmission power corresponding to the virtual position point; The probe frame is generated, and the wireless transmitter is controlled to transmit the wireless signal according to the transmission power. 8. The method of preventing the collection of effective information according to claim 1 or 7, characterized in that, Determining the transmission power corresponding to the virtual location point includes: The number of the wireless transmitter is one; The transmission power corresponding to the virtual location point is determined according to the distance from the virtual location point to the wireless transmitter; wherein the transmission power is inversely related to the distance from the virtual location point to the wireless transmitter. relation. 9. The method of preventing the collection of effective information according to claim 1 or 7, characterized in that, Determining the transmission power corresponding to the virtual location point includes: The number of wireless transmitters is multiple; The transmit power corresponding to the virtual position point is determined according to the distance from the virtual position point to the nearest wireless transmitter; wherein the transmit power and the distance from the virtual position point to the nearest wireless transmitter are equal to The corresponding ones show an inverse correlation; The controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes: The wireless transmitter closest to the virtual location point is controlled to transmit the wireless signal according to the transmission power. 10. A device that hinders the collection of effective information, characterized by: an address determination unit, used to select the first MAC address; Wireless transmitter for transmitting wireless signals; A signal generation unit, configured to generate a probe frame and control the wireless transmitter to send a wireless signal including information of the probe frame; Wherein: the source address of the probe frame is the first MAC address; The signal generation unit generates a probe frame and controls the wireless transmitter to send a wireless signal including the information of the probe frame, including: Plan virtual location points to pass through in sequence; Determine the transmission power corresponding to the virtual position point; Generate the probe frame; According to the sequence of the virtual location points, control the wireless transmitter to transmit the wireless signal containing the information of the probe frame according to the preset frequency and the corresponding transmission power; or, Plan virtual location points to pass through in sequence; Determine the transmission power corresponding to each virtual position point; Generate the probe frame according to a preset frequency; According to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal including the information of the probe frame according to the corresponding transmission power. 11. The device for preventing the collection of effective information according to claim 10, characterized in that, The virtual location points that the plan passes through in sequence include: Set movement speed; The virtual position point is planned according to the moving speed and the preset frequency. 12. The device for preventing the collection of effective information according to claim 10 or 11, characterized in that, The selecting the first MAC address includes: selecting the first MAC address within a preset MAC address segment. 13. The device for preventing the collection of effective information according to claim 12, characterized in that, The preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment. 14. The device for preventing the collection of effective information according to claim 12, characterized in that, The virtual location points that the plan passes through in sequence include: Set movement speed; The virtual position points to be passed sequentially are planned according to the moving speed and the preset frequency. 15. The device for preventing the collection of effective information according to claim 14, characterized in that, The virtual position points that are planned to be passed sequentially according to the moving speed and the preset frequency include: The virtual position points to be passed sequentially are planned according to the moving speed, the preset frequency and environmental conditions. 16. The device for preventing the collection of effective information according to claim 10, characterized in that, Generating a probe frame and controlling the wireless transmitter to send a wireless signal including information of the probe frame includes: Plan the virtual location points you are about to pass; Determine the transmission power corresponding to the virtual position point; The probe frame is generated, and the wireless transmitter is controlled to transmit the wireless signal according to the transmission power. 17. The device for preventing the collection of effective information according to claim 10 or 16, characterized in that, Determining the transmission power corresponding to the virtual location point includes: The number of the wireless transmitter is one; The transmission power corresponding to the virtual location point is determined according to the distance from the virtual location point to the wireless transmitter; wherein the transmission power is inversely related to the distance from the virtual location point to the wireless transmitter. relation. 18. The device for preventing the collection of effective information according to claim 10 or 16, characterized in that, Determining the transmission power corresponding to the virtual location point includes: The number of wireless transmitters is multiple; The transmit power corresponding to the virtual position point is determined according to the distance from the virtual position point to the nearest wireless transmitter; wherein the transmit power and the distance from the virtual position point to the nearest wireless transmitter are equal to The corresponding ones show an inverse correlation; The controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes: The wireless transmitter closest to the virtual location point is controlled to transmit the wireless signal according to the transmission power. 19. An electronic device, characterized by including a controller and a wireless transmitter; The wireless transmitter is used to transmit wireless signals; The controller is configured to perform the method of hindering the collection of effective information as described in any one of claims 1-9.