CN112235430B - Method and device for obstructing collection of effective information and electronic equipment - Google Patents
Method and device for obstructing collection of effective information and electronic equipment Download PDFInfo
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- CN112235430B CN112235430B CN201910573480.3A CN201910573480A CN112235430B CN 112235430 B CN112235430 B CN 112235430B CN 201910573480 A CN201910573480 A CN 201910573480A CN 112235430 B CN112235430 B CN 112235430B
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 239000000523 sample Substances 0.000 claims abstract description 126
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 52
- 230000000903 blocking effect Effects 0.000 claims description 41
- 230000007613 environmental effect Effects 0.000 claims description 9
- 230000009897 systematic effect Effects 0.000 description 4
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
- H04W4/027—Services making use of location information using location based information parameters using movement velocity, acceleration information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
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Abstract
The application provides a method and a device for obstructing effective information collection, and electronic equipment, wherein the method comprises the following steps: selecting a first MAC address; generating a probe frame, and controlling a wireless transmitter to transmit a wireless signal comprising information of the probe frame; wherein: the source address of the probe frame is the first MAC address. By adopting the method provided by the embodiment of the application, a large number of first MAC addresses can be constructed, and corresponding wireless signals comprising probe frame information can be generated; the wireless signals are collected by the collecting device to form a large amount of fictitious terminal information, and the fictitious terminal information and the real terminal information are mixed, so that the collecting device or the subsequent data processing device cannot or cannot easily determine the number of the real terminals, namely the number of users in the detection area.
Description
Technical Field
The application relates to the technical field of wireless local area networks, in particular to a method and a device for preventing a wireless access point from collecting user information; in addition, the application also provides electronic equipment for realizing the method.
Background
Techniques such as WIFI probes have been applied in such situations as malls, hotels, etc. to collect information about user terminals that are not connected to a particular wireless access point, and to use such information to evaluate the traffic volume of a supermarket and to make a representation of the user. In order to judge information such as a profit point of a mall or a hotel, a customer group type, and the like, some operators privately arrange electronic devices for collecting user terminal information in the mall and the hotel.
Disclosure of Invention
The present application provides a method and apparatus for hindering the collection of valid information by generating a wireless signal that includes false information such that the collection device collects the false information and interferes with the identification of the true valid information.
In one aspect, the present application provides a method of blocking the collection of valid information, comprising:
selecting a first MAC address;
generating a probe frame, and controlling a wireless transmitter to transmit a wireless signal comprising information of the probe frame;
wherein: the source address of the probe frame is the first MAC address.
Optionally, the generating the probe frame controls the wireless transmitter to send a wireless signal including information of the probe frame, including:
planning virtual position points passing in sequence;
determining the transmitting power corresponding to the virtual position point;
Generating the probe frame;
according to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal containing the information of the probe frames according to preset frequency and the corresponding transmitting power; or,
planning virtual position points passing in sequence;
determining the transmitting power corresponding to each virtual position point;
generating the probe frame according to a preset frequency;
and controlling the wireless transmitter to transmit the wireless signal comprising the information of the probe frames according to the corresponding transmission power according to the sequence of the virtual position points.
Optionally, planning the virtual location point sequentially passing through includes:
setting a moving speed;
and planning the virtual position point according to the moving speed and the preset frequency.
Optionally, the selecting the first MAC address includes: and selecting the first MAC address in a preset MAC address segment.
Optionally, the preset frequency is a sounding frame frequency of the real terminal corresponding to the preset MAC address field.
Optionally, the planning sequentially passes through virtual location points includes:
setting a moving speed;
and sequentially passing through the virtual position points according to the moving speed and the preset frequency plan.
Optionally, the virtual location point passing through sequentially according to the moving speed and the preset frequency plan includes:
and planning the virtual position points which sequentially pass through according to the moving speed, the preset frequency and the environmental condition.
Optionally, the generating the probe frame controls the wireless transmitter to send a wireless signal including information of the probe frame, including:
planning a virtual position point to be passed;
determining the transmitting power corresponding to the virtual position point;
and generating the probe frame, and controlling the wireless transmitter to transmit the wireless signal according to the transmission power.
Optionally, determining the transmitting power corresponding to the virtual location point includes:
the number of the wireless transmitters is one;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the wireless transmitter; wherein the transmit power is inversely related to the distance of the virtual location point from the wireless transmitter.
Optionally, determining the transmitting power corresponding to the virtual location point includes:
the number of the wireless transmitters is a plurality;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the nearest wireless transmitter; wherein, the distance between the transmitting power and the virtual position point to the nearest wireless transmitter is in inverse relation with the corresponding relation;
The controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:
and controlling the wireless transmitter closest to the virtual position point to transmit the wireless signal according to the transmission power.
The present application provides an apparatus for obstructing the collection of useful information, comprising:
an address determination unit for selecting a first MAC address;
a wireless transmitter for transmitting a wireless signal;
a signal generating unit for generating a probe frame, controlling the wireless transmitter to transmit 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 generating unit generates a probe frame, controls the wireless transmitter to transmit a wireless signal including information of the probe frame, and includes:
planning virtual position points passing in sequence;
determining the transmitting power corresponding to the virtual position point;
generating the probe frame;
according to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal containing the information of the probe frames according to preset frequency and the corresponding transmitting power; or,
planning virtual position points passing in sequence;
Determining the transmitting power corresponding to each virtual position point;
generating the probe frame according to a preset frequency;
and controlling the wireless transmitter to transmit the wireless signal comprising the information of the probe frames according to the corresponding transmission power according to the sequence of the virtual position points.
Optionally, the planning sequentially passes through virtual location points includes:
setting a moving speed;
and planning the virtual position point according to the moving speed and the preset frequency.
Optionally, the selecting the first MAC address includes: and selecting the first MAC address in a preset MAC address segment.
Optionally, the preset frequency is a sounding frame frequency of the real terminal corresponding to the preset MAC address field.
Optionally, the planning sequentially passes through virtual location points includes:
setting a moving speed;
and sequentially passing through the virtual position points according to the moving speed and the preset frequency plan.
Optionally, the virtual location point passing through sequentially according to the moving speed and the preset frequency plan includes:
and planning the virtual position points which sequentially pass through according to the moving speed, the preset frequency and the environmental condition.
Optionally, the generating the probe frame controls the wireless transmitter to send a wireless signal including information of the probe frame, including:
planning a virtual position point to be passed;
determining the transmitting power corresponding to the virtual position point;
and generating the probe frame, and controlling the wireless transmitter to transmit the wireless signal according to the transmission power.
Optionally, the determining the transmitting power corresponding to the virtual location point includes:
the number of the wireless transmitters is one;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the wireless transmitter; wherein the transmit power is inversely related to the distance of the virtual location point from the wireless transmitter.
Optionally, determining the transmitting power corresponding to the virtual location point includes:
the number of the wireless transmitters is a plurality;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the nearest wireless transmitter; wherein, the distance between the transmitting power and the virtual position point to the nearest wireless transmitter is in inverse relation with the corresponding relation;
the controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:
And controlling the wireless transmitter closest to the virtual position point to transmit the wireless signal according to the transmission power.
In another aspect, the application provides an electronic device comprising a controller and a wireless transmitter;
the wireless transmitter is used for transmitting wireless signals;
the controller is configured to perform a method of blocking the collection of useful information as previously described.
By adopting the method provided by the embodiment of the application, a large number of first MAC addresses can be constructed, and corresponding wireless signals comprising probe frame information can be generated; the wireless signals are collected by the collecting device to form a large amount of fictitious terminal information, and the fictitious terminal information and the real terminal information are mixed, so that the collecting device or the subsequent data processing device cannot or cannot easily determine the number of the real terminals, namely the number of users in the detection area.
Drawings
FIG. 1 is a flow chart of a method of blocking the collection of useful information provided in accordance with an embodiment;
FIG. 2 is a flow chart of a method of blocking the collection of useful information provided by embodiment two;
FIG. 3 is a schematic diagram of a principle method of an implementation of determining a transmit power corresponding to a virtual location point;
FIG. 4 is a flow chart of a method of blocking the collection of useful information provided by embodiment three;
FIG. 5 is a flow chart of an apparatus for blocking the collection of useful information provided in accordance with the fourth embodiment;
wherein: 11-address determination unit, 12-signal generation unit, 13-wireless transmitter.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings.
The embodiment of the application provides a method for preventing effective information from being collected, which prevents a collection terminal from collecting effective information by generating a fake probe frame and a corresponding wireless signal and then adding interference information to the information collected by the collection terminal.
Example 1
Fig. 1 is a flowchart of a method for blocking collection of effective information provided in the first embodiment, and this method may be applied to a gateway device such as a wireless router, or may be applied to an electronic device having only a type of transmitting wireless signals, and the method of this embodiment is described below with the wireless router as an execution subject. As shown in fig. 1, the method provided in this embodiment includes steps S101 to S103.
S101: a first MAC address is selected.
When the wireless router works, the first MAC address is selected according to a preset rule. The first MAC address is not a MAC address that is burned in hardware at the time of shipment of the wireless router and that identifies information of the wireless router itself, but a randomly constructed MAC address that represents a Station (STA); the first MAC address may be a MAC address of various possible user terminals, for example, a MAC address collected by a smart phone, or a MAC address for a notebook computer.
It should be noted that selecting the first MAC address does not represent the first MAC address already stored in the wireless router; in practical application, the router may store information of a selectable MAC address segment, and select a first MAC address in the MAC address segment; in practice, the first MAC address is preferably selected in a random manner.
S102: a probe frame is generated.
The wireless router generates a probe frame according to a rule protocol; wherein 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 including a source MAC address, which is mainly used to inform surrounding Wireless Access Points (APs) that there may be a need for a connection. Taking a wifi protocol as an example, the wireless router generates a Probe Request frame, and the Probe Request frame includes identification information of itself being the Probe Request frame besides the first MAC address.
S103: the wireless transmitter is controlled to transmit a wireless signal including information of the probe frame.
After the probe frame is generated, a wireless transmitter in the wireless router modulates the probe frame to generate a wireless signal and radiate the wireless signal to the environment. If the coverage area of the wireless signal is provided with a collecting device; after the radio signal is received and processed by the signal receiver of such a device, the first MAC address is stored as the MAC address of a real user terminal.
If the wireless router randomly constructs a plurality of first MAC addresses, generating corresponding wireless signals comprising probe frame information; the wireless signals are collected by the collecting device to form a large amount of fictitious terminal information, and the fictitious terminal information and the real terminal information are mixed, so that the collecting device or the subsequent data processing device cannot or cannot easily determine the number of the real terminals, namely the number of users in the detection area.
Example two
Fig. 2 is a flowchart of a method for blocking collection of effective information according to the second embodiment. As shown in fig. 2, the method provided in this embodiment includes steps S201 to S205.
Before describing the method of the embodiment, a description is first made of possible implementation scenarios of the method. Still, here, the user terminal (i.e., station), the wireless router, and the collecting device communicate using WIFI protocol.
When the WIFI equipment of the user terminal is in an on state, if a specific wireless network access point is not connected, a Probe Request frame and a corresponding wireless signal are generated at intervals so as to inform surrounding WIFI equipment that the connection requirement is possible.
If the user terminal is in a mobile state (i.e., the user carrying the user terminal is in a mobile state) and the wireless router and the collecting device are fixed in position, the signal strengths of Probe Request frames sent by the same device and collected by the wireless router and the collecting device at different moments are different, and the collected signal strengths show a specific rule according to the change of the mobile position of the user terminal.
If the wireless router always transmits the wireless signal comprising the first MAC address according to the same transmitting power or the power without a specific rule, the collecting device collects the wireless signal for a long time, and the first MAC address can be judged to be the MAC address of the false terminal by comparing the signal intensity corresponding to the first MAC address; after determining that the first MAC address is the MAC address of the false terminal, the collecting device may discard the MAC address, and store the MAC address whose collected signal strength changes according to a specific rule as the MAC address of the true terminal.
S201: a first MAC address is selected.
When the wireless router works, the first MAC address is selected according to a preset rule. It should be noted that the first MAC address is not a MAC address that is burned in hardware at the time of shipment of the wireless router and that identifies information of the wireless router itself, but a randomly constructed MAC address that represents a Station (STA); the first MAC address may be a MAC address of various possible user terminals, for example, a MAC address for intelligent collection, or a MAC address for a notebook computer;
selecting the first MAC address does not represent the first MAC address already stored in the wireless router; in practical application, the router may store information of a selectable MAC address segment, and select a first MAC address in the MAC address segment; in practice, the first MAC address is preferably selected in a random manner.
S202: virtual location points that pass sequentially are planned.
In this embodiment, it is necessary to construct a virtual user terminal identified by the first MAC; the virtual location points are a plurality of location points on a virtual path through which the virtual user terminal passes.
S203: and determining the transmitting power corresponding to the virtual position point.
The transmission power referred to herein does not refer to the transmission power transmitted by the virtual user terminal, but the corresponding transmission power when the wireless router transmits the wireless signal.
Fig. 3 is a schematic diagram of an implementation principle method of determining the transmission power corresponding to the virtual location point. As shown in fig. 3. The virtual line is a virtual path of the set virtual user terminal passing through the field area, and a plurality of position points are selected as virtual position points on the virtual path.
As shown in fig. 3, the virtual location point, the wireless router and the collection device form a triangle (or are on the same straight line), because one side of the triangle is determined in length (the distance between the wireless router and the collection device is determined), the distance between different virtual location points and the wireless router changes, and the distance between the virtual location point and the corresponding collection device shows a certain correlation. Correspondingly, the signal strength of the Probe Request frame sent by the real user terminal at different virtual position points and collected by the wireless router and the collecting device is in a correlation relation. Correspondingly, if a wireless router is used for transmitting false Probe Request frames, the required transmitting power can be determined according to the distance from the wireless router to the virtual position points, so that the signal strength of a wireless signal comprising the Probe Request frames received by the receiving equipment presents the signal strength change characteristics of the Probe Request frames sent by the real user terminal through each virtual position point.
In the embodiment of the application, the transmitting power corresponding to each virtual position point is determined according to the distance from the virtual position point to the wireless transmitter, and the transmitting power and the distance from the virtual position point to the wireless transmitter are in an inverse relation.
S204: a probe frame is generated.
The wireless router generates a Probe request frame (Probe frame) according to a WIFI rule protocol; wherein the source address of the probe frame is the first MAC address.
S205: and controlling the wireless transmitter to transmit wireless signals according to the preset frequency and the corresponding transmitting power according to the sequence of the virtual position points.
The wireless router transmits wireless signals according to a preset transmitting frequency, and the wireless signals are sequentially received by receiving equipment; because the power of the wireless signals sent out at different moments is different, after the wireless signals are received by the receiving device at different moments, the signal strength determined by the receiving device is different, and the positions of the virtual user terminals determined in sequence are different. Because the signal intensity variation of each wireless signal received by the receiving device is related to the position sequence of the set virtual position point, the wireless device cannot determine whether the corresponding wireless signal is a wireless signal sent by the real user terminal or a wireless signal sent by the false user terminal through analysis of the signal intensity variation, and cannot identify whether the user information identified according to each wireless signal is false information or not.
According to the analysis, the embodiment of the application firstly plans the passing virtual position point, determines the corresponding transmitting power according to the planned virtual position point, and sequentially transmits the wireless signals comprising the first MAC address according to the virtual position point and the corresponding transmitting power, so that the intensity characteristics of each wireless signal received by the receiving equipment are similar to the intensity characteristics of the wireless signal sent by the real mobile terminal when moving, and therefore, the user terminal cannot identify whether the real mobile terminal is the real mobile terminal according to the signal intensity, and cannot collect effective information.
It should be noted that, since the virtual location points sequentially passing through are planned, there is no direct correlation between determining the corresponding occurrence power and selecting the first MAC address, in other embodiments, the virtual location points sequentially passing through and the corresponding transmission power may be planned first, and then the first MAC address is selected, that is, the foregoing S201 may be placed after S203.
In the method for obstructing the collection of the effective information provided by the embodiment of the application, after the wireless router generates the probe frame, the wireless router stores the probe frame and transmits a wireless signal comprising the information of the probe frame according to the preset frequency and the transmitting power; in other embodiments, the probe frame may be generated according to a preset frequency, and then the wireless transmitter is controlled to transmit a wireless signal including probe frame information according to a corresponding transmission power according to the sequence of the virtual position points; i.e. the wireless router does not store probe frames, but generates probe frames at any time.
According to the use rule of the MAC address, the IEEE allocates the MAC addresses of different sections to each equipment manufacturer, and the MAC addresses allocated by different equipment manufacturers can be queried. If the first MAC address is set as the MAC address used by the non-local area and the very common equipment, the collecting equipment can quickly determine that the corresponding wireless signal is the interference signal sent by the false terminal through the first MAC address, and the information corresponding to the first MAC address can be discarded.
To avoid the problem of the previous stage, in the embodiment of the present application, selecting the first MAC address may be optimized as: selecting a first MAC address in a preset MAC address segment; the preset MAC address field is an address field allocated to a specific device manufacturer, and devices produced by the specific device manufacturer are used in a large amount in a collection area of the collection device. In this way, since the corresponding wireless signal cannot be identified as the signal sent by the fake user terminal by the first MAC address, it cannot be identified whether the information in the wireless signal is real information or fake information.
Furthermore, the terminal devices manufactured by different device manufacturers may set different sounding frame frequencies, so as to avoid that the collecting device determines that the collecting device is a signal sent by a false user terminal according to the frequency of the received wireless signal and the corresponding first AMC address, and the preset frequency may be set to the sounding frame frequency of the real terminal corresponding to the preset MAC address field, that is, the sounding frame frequency of the user terminal manufactured by the specific device manufacturer.
Further, the planning the virtual location points sequentially passing through includes: setting a moving speed, and planning virtual position points passing through in sequence according to a preset frequency band and the moving speed; it should be noted that the aforementioned moving speed may be a fixed speed or a variable speed; in a specific application, the moving speed is preferably set to a randomly changing speed within a certain interval so as to simulate the movement of a real user terminal carried by a user as much as possible.
In addition, planning virtual location points may require consideration of environmental conditions in addition to movement speed and preset frequency. Taking the park as an example, if a pool is arranged in the park, the real user terminal cannot pass through the pool, so that the virtual position point needs to be prevented from being arranged in the area corresponding to the pool.
It should also be noted that, in practical applications, the path formed by the collecting device according to the collected wireless signals may deviate systematically from the path formed by the real user terminal when passing through in the real environment; for example: in the park scenario described above, the path determined by the collection device from the wireless signal from the real user terminal does not pass through the pond, but the path determined from the wireless signal from the false user terminal passes through the pond. To avoid that the collecting device uses systematic deviations to determine false information, systematic errors, i.e. the position of the virtual position point, can also be corrected by means of a pre-test.
It should be noted that in the implementation of the present application, the number of wireless transmitters of the wireless router may be one or more. In the case that the number of wireless transmitters is one, determining the transmission power corresponding to the virtual location point is directly determining the transmission power according to the distance from the virtual location point to the wireless transmitters. In the case where the number of wireless transmitters is plural, the transmission power may be determined according to the distance from the virtual location point to the nearest wireless transmitter.
Example III
Fig. 4 is a flowchart of a method for blocking collection of effective information provided in the third embodiment. As shown in FIG. 4, the method provided by the present embodiment includes steps S301-S304
S301: a first MAC address is selected.
S302: planning the virtual position point to be passed.
The principle of planning virtual location points in this embodiment is similar to that of the embodiment, and will not be repeated here. However, unlike the second embodiment, the present embodiment does not plan all virtual location points simulating the movement of the real mobile terminal in advance, but only plans the virtual location points to be passed.
S303: and determining the transmitting power corresponding to the virtual position point.
The transmission power referred to herein does not refer to the transmission power transmitted by the virtual user terminal, but the corresponding transmission power when the wireless router transmits the wireless signal.
As shown in fig. 3. The virtual line is a virtual path of the set virtual user terminal passing through the field area, and a plurality of position points are selected as virtual position points on the virtual path.
As shown in fig. 3, the virtual location point, the wireless router and the collection device form a triangle (or are on the same straight line), because one side of the triangle is determined in length (the distance between the wireless router and the collection device is determined), the distance between different virtual location points and the wireless router changes, and the distance between the virtual location point and the corresponding collection device shows a certain correlation. Correspondingly, the signal strength of the Probe Request frame sent by the real user terminal at different virtual position points and collected by the wireless router and the collecting device is in a correlation relation. Correspondingly, if a wireless router is used for transmitting false Probe Request frames, the required transmitting power can be determined according to the distance from the wireless router to the virtual position points, so that the signal strength of a wireless signal comprising the Probe Request frames received by the receiving equipment presents the signal strength change characteristics of the Probe Request frames sent by the real user terminal through each virtual position point.
In the embodiment of the application, the transmitting power corresponding to each virtual position point is determined according to the distance from the virtual position point to the wireless transmitter, and the transmitting power and the distance from the virtual position point to the wireless transmitter are in an inverse relation.
S304: generating a probe frame, and controlling a wireless transmitter to transmit wireless signals according to the transmission power; subsequently, S302 is continued or ended.
In the method for blocking the collection of effective information provided in this embodiment, all virtual location points on the virtual path shown in fig. 3 are not planned at one time, but only one virtual location point is planned, and after the wireless signal is transmitted according to the corresponding power of the virtual location point, the next virtual location point and the corresponding transmission power are planned.
The wireless router transmits wireless signals according to a preset transmitting frequency, and the wireless signals are sequentially received by receiving equipment; because the power of the wireless signals sent out at different moments is different, after the wireless signals are received by the receiving device at different moments, the signal strength determined by the receiving device is different, and the positions of the virtual user terminals determined in sequence are different. Because the signal intensity variation of each wireless signal received by the receiving device is related to the position sequence of the set virtual position point, the wireless device cannot determine whether the corresponding wireless signal is a wireless signal sent by the real user terminal or a wireless signal sent by the false user terminal through analysis of the signal intensity variation, and cannot identify whether the user information identified according to each wireless signal is false information or not.
According to the analysis, the embodiment of the application firstly plans the passing virtual position point, determines the corresponding transmitting power according to the planned virtual position point, and sequentially transmits the wireless signals comprising the first MAC address according to the virtual position point and the corresponding transmitting power, so that the intensity characteristics of each wireless signal received by the receiving equipment are similar to the intensity characteristics of the wireless signal sent by the real mobile terminal when moving, and therefore, the user terminal cannot identify whether the real mobile terminal is the real mobile terminal according to the signal intensity, and cannot collect effective information.
According to the use rule of the MAC address, the IEEE allocates the MAC addresses of different sections to each equipment manufacturer, and the MAC addresses allocated by different equipment manufacturers can be queried. If the first MAC address is set as the MAC address used by the non-local area and the very common equipment, the collecting equipment can quickly determine that the corresponding wireless signal is the interference signal sent by the false terminal through the first MAC address, and the information corresponding to the first MAC address can be discarded.
To avoid the problem of the previous stage, in the embodiment of the present application, selecting the first MAC address may be optimized as: selecting a first MAC address in a preset MAC address segment; the preset MAC address field is an address field allocated to a specific device manufacturer, and devices produced by the specific device manufacturer are used in a large amount in a collection area of the collection device. In this way, since the corresponding wireless signal cannot be identified as the signal sent by the fake user terminal by the first MAC address, it cannot be identified whether the information in the wireless signal is real information or fake information.
Furthermore, the terminal devices manufactured by different device manufacturers may set different sounding frame frequencies, so as to avoid that the collecting device determines that the collecting device is a signal sent by a false user terminal according to the frequency of the received wireless signal and the corresponding first AMC address, and the preset frequency may be set to the sounding frame frequency of the real terminal corresponding to the preset MAC address field, that is, the sounding frame frequency of the user terminal manufactured by the specific device manufacturer.
It should be noted that, in this embodiment, the position of the virtual position point to be planned to pass should have an association relationship with the position of the virtual position point already planned at the latest time, so as to avoid the problem that the transmission power exhibits fluctuation variation, which causes that the corresponding wireless signal is identified as the signal sent by the false terminal.
In addition, planning virtual location points may require consideration of environmental conditions in addition to movement speed and preset frequency. Taking the park as an example, if a pool is arranged in the park, the real user terminal cannot pass through the pool, so that the virtual position point needs to be prevented from being arranged in the area corresponding to the pool.
It should also be noted that, in practical applications, the path formed by the collecting device according to the collected wireless signals may deviate systematically from the path formed by the real user terminal when passing through in the real environment; for example: in the park scenario described above, the path determined by the collection device from the wireless signal from the real user terminal does not pass through the pond, but the path determined from the wireless signal from the false user terminal passes through the pond. To avoid that the collecting device uses systematic deviations to determine false information, systematic errors, i.e. the position of the virtual position point, can also be corrected by means of a pre-test.
It should be noted that in the implementation of the present application, the number of wireless transmitters of the wireless router may be one or more. In the case that the number of wireless transmitters is one, determining the transmission power corresponding to the virtual location point is directly determining the transmission power according to the distance from the virtual location point to the wireless transmitters. In the case where the number of wireless transmitters is plural, the transmission power may be determined according to the distance from the virtual location point to the nearest wireless transmitter.
In addition to providing the method for preventing the collection of the effective information, the application also provides a device for preventing the collection of the effective information.
Example IV
Fig. 5 is a flowchart of an apparatus for blocking collection of effective information provided in the fourth embodiment. As shown in fig. 5, the apparatus for blocking collection of effective information includes an address determination unit 11, a wireless transmitter 12, and a signal generation unit 13.
The address determination unit 11 is configured to select a first MAC address; a wireless transmitter 12 for transmitting a wireless signal; a signal generating unit 13 for generating a probe frame, controlling the wireless transmitter 12 to transmit a wireless signal including 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 generating unit 13 generates a probe frame, controls the wireless transmitter 12 to transmit a wireless signal including information of the probe frame, and includes: planning virtual position points passing in sequence; determining the transmitting power corresponding to the virtual position point; generating a probe frame; according to the sequence of the virtual position points, the wireless transmitter 12 is controlled to transmit wireless signals containing information of the probe frames according to the preset frequency and the corresponding transmission power;
in another more specific embodiment, the signal generating unit 13 generates a probe frame, controls the wireless transmitter 12 to transmit a wireless signal including information of the probe frame, and includes: planning virtual position points passing in sequence; determining the transmitting power corresponding to each virtual position point; generating a probe frame according to a preset frequency; according to the order of the virtual position points, the wireless transmitter 12 is controlled to transmit an information wireless signal including a probe frame at a corresponding transmission power.
In some embodiments, planning virtual location points that pass sequentially includes: setting a moving speed; and planning virtual position points according to the moving speed and the preset frequency.
In some embodiments, selecting the first MAC address includes: and selecting a first MAC address in a preset MAC address segment.
In some embodiments, the preset frequency is a sounding frame frequency of the real terminal corresponding to the preset MAC address field.
In some embodiments, planning virtual location points that pass sequentially includes: setting a moving speed; and sequentially passing through virtual position points according to the moving speed and a preset frequency plan.
In some embodiments, the virtual location points sequentially passing according to the moving speed and the preset frequency plan include: and planning virtual position points passing sequentially according to the moving speed, the preset frequency and the environmental conditions.
In some embodiments, generating the probe frame, controlling wireless transmitter 12 to transmit a wireless signal including information of the probe frame, includes: planning a virtual position point to be passed; determining the transmitting power corresponding to the virtual position point; a probe frame is generated and the wireless transmitter 12 is controlled to transmit a wireless signal at a transmission power.
In the foregoing embodiment, the number of wireless transmitters 12 may be one; correspondingly, determining the transmission power corresponding to the virtual location point may include:
determining the transmission power corresponding to the virtual position point according to the distance from the virtual position point to the wireless transmitter 12; wherein the transmit power is inversely related to the distance of the virtual location point from the wireless transmitter 12.
In the foregoing embodiment, the number of wireless transmitters 12 is plural; correspondingly, determining the transmission power corresponding to the virtual location point may further include: determining the transmission power corresponding to the virtual position point according to the distance from the virtual position point to the nearest wireless transmitter 12; wherein the transmission power and the distance from the virtual position point to the nearest wireless transmitter 12 are in inverse relation to the corresponding relation;
controlling the wireless transmitter 12 to transmit wireless signals at a transmit power includes:
the wireless transmitter 12 closest to the virtual position point is controlled to transmit a wireless signal at the transmission power.
The application provides an electronic device, which comprises a controller and a wireless transmitter; the wireless transmitter is used for transmitting wireless signals; the controller is configured to perform the method of blocking the collection of valid information provided by the foregoing embodiments.
A1. A method of blocking the collection of valid information, comprising:
selecting a first MAC address;
generating a probe frame, and controlling a wireless transmitter to transmit a wireless signal comprising information of the probe frame;
wherein: the source address of the probe frame is the first MAC address.
A2. The method for blocking the collection of effective information according to A1, wherein the generating a probe frame, controlling a wireless transmitter to transmit a wireless signal including information of the probe frame, comprises:
Planning virtual position points passing in sequence;
determining the transmitting power corresponding to the virtual position point;
generating the probe frame;
according to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal containing the information of the probe frames according to preset frequency and the corresponding transmitting power; or,
planning virtual position points passing in sequence;
determining the transmitting power corresponding to each virtual position point;
generating the probe frame according to a preset frequency;
and controlling the wireless transmitter to transmit the wireless signal comprising the information of the probe frames according to the corresponding transmission power according to the sequence of the virtual position points.
A3. The method for blocking the collection of effective information according to A2, planning virtual location points passing sequentially, comprising:
setting a moving speed;
and planning the virtual position point according to the moving speed and the preset frequency.
A4. The method for blocking collection of valid information according to A2 or A3, the selecting a first MAC address, comprising: and selecting the first MAC address in a preset MAC address segment.
A5. The method for blocking collection of effective information according to 4, wherein the preset frequency is a detection frame frequency of a real terminal corresponding to the preset MAC address field.
A6. The method for blocking the collection of effective information according to A4, wherein the planning of virtual position points sequentially passing through comprises:
setting a moving speed;
and sequentially passing through the virtual position points according to the moving speed and the preset frequency plan.
A7. The method for blocking the collection of effective information according to A6, according to the moving speed and the virtual position point through which the preset frequency plan sequentially passes, includes:
and planning the virtual position points which sequentially pass through according to the moving speed, the preset frequency and the environmental condition.
A8. The method for blocking the collection of effective information according to A1, wherein the generating a probe frame, controlling a wireless transmitter to transmit a wireless signal including information of the probe frame, comprises:
planning a virtual position point to be passed;
determining the transmitting power corresponding to the virtual position point;
and generating the probe frame, and controlling the wireless transmitter to transmit the wireless signal according to the transmission power.
A9. The method for blocking the collection of the effective information according to A2 or A8, determining the transmitting power corresponding to the virtual position point, comprises the following steps:
the number of the wireless transmitters is one;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the wireless transmitter; wherein the transmit power is inversely related to the distance of the virtual location point from the wireless transmitter.
A10. The method for blocking the collection of the effective information according to A2 or A8, determining the transmitting power corresponding to the virtual position point, comprises the following steps:
the number of the wireless transmitters is a plurality;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the nearest wireless transmitter; wherein, the distance between the transmitting power and the virtual position point to the nearest wireless transmitter is in inverse relation with the corresponding relation;
the controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:
and controlling the wireless transmitter closest to the virtual position point to transmit the wireless signal according to the transmission power.
A11. An apparatus that obstructs the collection of valid information, comprising:
an address determination unit for selecting a first MAC address;
a wireless transmitter for transmitting a wireless signal;
a signal generating unit for generating a probe frame, controlling the wireless transmitter to transmit a wireless signal including information of the probe frame;
wherein: the source address of the probe frame is the first MAC address.
A12. The apparatus for blocking the collection of useful information according to a11, wherein,
The signal generating unit generates a probe frame, controls the wireless transmitter to transmit a wireless signal including information of the probe frame, and includes:
planning virtual position points passing in sequence;
determining the transmitting power corresponding to the virtual position point;
generating the probe frame;
according to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal containing the information of the probe frames according to preset frequency and the corresponding transmitting power; or,
planning virtual position points passing in sequence;
determining the transmitting power corresponding to each virtual position point;
generating the probe frame according to a preset frequency;
and controlling the wireless transmitter to transmit the wireless signal comprising the information of the probe frames according to the corresponding transmission power according to the sequence of the virtual position points.
A13. The apparatus for blocking the collection of useful information according to a12,
the virtual position points sequentially passed by the planning comprise:
setting a moving speed;
and planning the virtual position point according to the moving speed and the preset frequency.
A14. The apparatus for blocking collection of valid information according to a12 or 13, the selecting a first MAC address comprising: and selecting the first MAC address in a preset MAC address segment.
A15. The device for blocking the collection of the effective information according to a14, wherein the preset frequency is a detection frame frequency of the real terminal corresponding to the preset MAC address field.
A16. The apparatus for blocking the collection of effective information according to a14, wherein the planning of virtual location points sequentially passing through includes:
setting a moving speed;
and sequentially passing through the virtual position points according to the moving speed and the preset frequency plan.
A17. The device for blocking the collection of effective information according to a16, according to the moving speed and the virtual position point through which the preset frequency plan sequentially passes, comprises:
and planning the virtual position points which sequentially pass through according to the moving speed, the preset frequency and the environmental condition.
A18. The apparatus for blocking the collection of effective information according to a11, the generating a probe frame, controlling a wireless transmitter to transmit a wireless signal including information of the probe frame, comprising:
planning a virtual position point to be passed;
determining the transmitting power corresponding to the virtual position point;
and generating the probe frame, and controlling the wireless transmitter to transmit the wireless signal according to the transmission power.
A19. The apparatus for blocking collection of effective information according to a12 or 18, wherein the determining the transmission power corresponding to the virtual location point includes:
The number of the wireless transmitters is one;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the wireless transmitter; wherein the transmit power is inversely related to the distance of the virtual location point from the wireless transmitter.
A20 determines the transmitting power corresponding to the virtual position point according to the device for blocking the collection of the effective information as shown in A12 or A18, and comprises the following steps:
the number of the wireless transmitters is a plurality;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the nearest wireless transmitter; wherein, the distance between the transmitting power and the virtual position point to the nearest wireless transmitter is in inverse relation with the corresponding relation;
the controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:
and controlling the wireless transmitter closest to the virtual position point to transmit the wireless signal according to the transmission power.
A21. An electronic device includes a controller and a wireless transmitter;
the wireless transmitter is used for transmitting wireless signals;
the controller is configured to perform a method of hindering the collection of valid information as in any one of A1-10.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described device for controlling network usage behavior may refer to the corresponding process in the foregoing method embodiment, which is not repeated 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 apparatus. Various general-purpose systems may also be used with the teachings herein. The required structure for a construction of such a system is apparent from the description above. In addition, the present invention is not directed to any particular programming language. It will be appreciated that the teachings of the present invention described herein may be implemented in a variety of programming languages, and the above description of specific languages is provided for disclosure of enablement and best mode of the present invention.
In the description provided herein, numerous specific details are set forth. 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 in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., 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 appreciate that the modules in the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiments. The modules or units or components of 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. Any combination of all features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be used in combination, except insofar as at least some of such features and/or processes or units are mutually exclusive. Each feature disclosed in this specification (including any 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 appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention 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 of blocking the collection of useful information, comprising:
selecting a first MAC address;
generating a probe frame, and controlling a wireless transmitter to transmit a wireless signal comprising information of the probe frame;
wherein: the source address of the probe frame is the first MAC address;
the generating a probe frame, controlling a wireless transmitter to transmit a wireless signal including information of the probe frame, includes:
planning virtual position points passing in sequence;
determining the transmitting power corresponding to the virtual position point;
generating the probe frame;
according to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal containing the information of the probe frames according to preset frequency and the corresponding transmitting power; or,
Planning virtual position points passing in sequence;
determining the transmitting power corresponding to each virtual position point;
generating the probe frame according to a preset frequency;
and controlling the wireless transmitter to transmit the wireless signal comprising the information of the probe frames according to the corresponding transmission power according to the sequence of the virtual position points.
2. The method of hindering the collection of useful information according to claim 1, wherein:
planning virtual location points passing in sequence, comprising:
setting a moving speed;
and planning the virtual position point according to the moving speed and the preset frequency.
3. The method of hindering the collection of useful information according to claim 1 or 2, characterized in that,
the selecting the first MAC address includes: and selecting the first MAC address in a preset MAC address segment.
4. The method for blocking the collection of useful information as in 3, wherein,
and the preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment.
5. A method of hindering the collection of useful information as in claim 3,
the virtual position points sequentially passed by the planning comprise:
setting a moving speed;
and sequentially passing through the virtual position points according to the moving speed and the preset frequency plan.
6. The method of blocking the collection of useful information as set forth in claim 5, wherein,
the virtual position points sequentially passing through according to the moving speed and the preset frequency plan comprise:
and planning the virtual position points which sequentially pass through according to the moving speed, the preset frequency and the environmental condition.
7. The method of blocking the collection of useful information of claim 1, wherein the generating a probe frame, controlling a wireless transmitter to transmit a wireless signal comprising information of the probe frame, comprises:
planning a virtual position point to be passed;
determining the transmitting power corresponding to the virtual position point;
and generating the probe frame, and controlling the wireless transmitter to transmit the wireless signal according to the transmission power.
8. The method of hindering the collection of useful information according to claim 1 or 7, characterized in,
determining the transmitting power corresponding to the virtual position point comprises the following steps:
the number of the wireless transmitters is one;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the wireless transmitter; wherein the transmit power is inversely related to the distance of the virtual location point from the wireless transmitter.
9. The method of hindering the collection of useful information according to claim 1 or 7, characterized in,
determining the transmitting power corresponding to the virtual position point comprises the following steps:
the number of the wireless transmitters is a plurality;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the nearest wireless transmitter; wherein, the distance between the transmitting power and the virtual position point to the nearest wireless transmitter is in inverse relation with the corresponding relation;
the controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:
and controlling the wireless transmitter closest to the virtual position point to transmit the wireless signal according to the transmission power.
10. An apparatus for impeding the collection of useful information, comprising:
an address determination unit for selecting a first MAC address;
a wireless transmitter for transmitting a wireless signal;
a signal generating unit for generating a probe frame, controlling the wireless transmitter to transmit a wireless signal including information of the probe frame;
wherein: the source address of the probe frame is the first MAC address;
the signal generating unit generates a probe frame, controls the wireless transmitter to transmit a wireless signal including information of the probe frame, and includes:
Planning virtual position points passing in sequence;
determining the transmitting power corresponding to the virtual position point;
generating the probe frame;
according to the sequence of the virtual position points, the wireless transmitter is controlled to transmit the wireless signal containing the information of the probe frames according to preset frequency and the corresponding transmitting power; or,
planning virtual position points passing in sequence;
determining the transmitting power corresponding to each virtual position point;
generating the probe frame according to a preset frequency;
and controlling the wireless transmitter to transmit the wireless signal comprising the information of the probe frames according to the corresponding transmission power according to the sequence of the virtual position points.
11. The apparatus for blocking the collection of useful information as claimed in claim 10, wherein,
the virtual position points sequentially passed by the planning comprise:
setting a moving speed;
and planning the virtual position point according to the moving speed and the preset frequency.
12. An apparatus for hindering the collection of useful information according to claim 10 or 11, characterised in that,
the selecting the first MAC address includes: and selecting the first MAC address in a preset MAC address segment.
13. The apparatus for blocking the collection of useful information as claimed in claim 12, wherein,
and the preset frequency is the detection frame frequency of the real terminal corresponding to the preset MAC address segment.
14. The apparatus for blocking the collection of useful information as claimed in claim 12, wherein,
the virtual position points sequentially passed by the planning comprise:
setting a moving speed;
and sequentially passing through the virtual position points according to the moving speed and the preset frequency plan.
15. The apparatus for blocking the collection of useful information as claimed in claim 14, wherein,
the virtual position points sequentially passing through according to the moving speed and the preset frequency plan comprise:
and planning the virtual position points which sequentially pass through according to the moving speed, the preset frequency and the environmental condition.
16. The apparatus for blocking the collection of useful information as claimed in claim 10, wherein,
the generating a probe frame, controlling a wireless transmitter to transmit a wireless signal including information of the probe frame, includes:
planning a virtual position point to be passed;
determining the transmitting power corresponding to the virtual position point;
and generating the probe frame, and controlling the wireless transmitter to transmit the wireless signal according to the transmission power.
17. An apparatus for impeding the collection of useful information according to claim 10 or 16,
the determining the transmitting power corresponding to the virtual position point comprises the following steps:
the number of the wireless transmitters is one;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the wireless transmitter; wherein the transmit power is inversely related to the distance of the virtual location point from the wireless transmitter.
18. An apparatus for impeding the collection of useful information according to claim 10 or 16,
determining the transmitting power corresponding to the virtual position point comprises the following steps:
the number of the wireless transmitters is a plurality;
determining the transmitting power corresponding to the virtual position point according to the distance from the virtual position point to the nearest wireless transmitter; wherein, the distance between the transmitting power and the virtual position point to the nearest wireless transmitter is in inverse relation with the corresponding relation;
the controlling the wireless transmitter to transmit the wireless signal according to the transmission power includes:
and controlling the wireless transmitter closest to the virtual position point to transmit the wireless signal according to the transmission power.
19. An electronic device comprising a controller and a wireless transmitter;
the wireless transmitter is used for transmitting wireless signals;
the controller is configured to perform a method of hindering the collection of useful information as claimed in any one of claims 1-9.
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