CN109150367B - Method and device for protecting wireless signal leakage of important place - Google Patents
Method and device for protecting wireless signal leakage of important place Download PDFInfo
- Publication number
- CN109150367B CN109150367B CN201810646689.3A CN201810646689A CN109150367B CN 109150367 B CN109150367 B CN 109150367B CN 201810646689 A CN201810646689 A CN 201810646689A CN 109150367 B CN109150367 B CN 109150367B
- Authority
- CN
- China
- Prior art keywords
- frequency band
- signal
- preset
- interference signal
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/825—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by jamming
Abstract
The invention provides a method and a device for protecting wireless signal leakage in an important place, wherein the method comprises the following steps: generating an interference signal, wherein the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band; and transmitting the interference signal to prevent the wireless signal of any frequency band except the preset frequency band from leaking. The method and the device for protecting the leakage of the wireless signals in the important places provided by the invention have the advantages that the frequency band signals needing to be interfered are removed in a targeted manner, the frequency band of the user needing normal communication is not interfered, and an information exchange path with the outside is provided for the user in the important places on the premise of ensuring that the information of the wireless signals in the important places cannot be leaked, so that the adverse effect caused by the fact that the user misses the outside information is prevented.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a wireless signal leakage protection method and device for important places.
Background
With the continuous development of information technology and the convenient carrying of communication equipment, keeping smooth information with the outside becomes an indispensable factor for normal work and life affairs processing. The communication device inevitably generates information interaction (such as signaling interaction with a base station) in the process of receiving external information. It is possible to carry sensitive information a (such as wireless signals) around us in the process of sending signals to the outside. If the outside has malicious monitoring equipment to monitor and filter the wireless signals carrying the sensitive information A, the relevant content of the sensitive information A can be obtained. Therefore, in an important place, how to prevent the wireless signal leakage is very important.
In the prior art, in order to prevent information leakage in important places, the following method is generally adopted: firstly, electromagnetic shielding is carried out in a place area, for example, an important place is designed into an electromagnetic shielding room, so that any electromagnetic signal in the area cannot be leaked out of the electromagnetic shielding room, and any signal outside the electromagnetic shielding room cannot be sent into the electromagnetic shielding room. And secondly, carrying out electromagnetic shielding on the specific equipment or carrying out electromagnetic interference on the specific equipment, thereby achieving the purpose that the wireless signal cannot be leaked through the specific equipment.
In the prior art, although the former method can achieve the purpose of preventing the wireless signal from leaking, the personnel in the electromagnetic shielding room cannot perform necessary communication with the personnel outside the electromagnetic shielding room. Although the latter reduces the risk of wireless signal leakage to a certain extent, electronic devices in important places are often too many to shield or interfere with only the wireless signal of a specific device, so that electromagnetic interference on all devices in the place cannot be realized under the condition of ensuring normal communication of users, and the leakage of the wireless signal cannot be effectively prevented.
Disclosure of Invention
The invention aims to provide a method and a device for protecting wireless signal leakage in an important place, which solve the technical problem that the prior art can not ensure that a user can carry out necessary communication in the important place and simultaneously prevent the wireless signal leakage.
In order to solve the above technical problem, in one aspect, the present invention provides a method for protecting a wireless signal leakage in an important place, including:
generating an interference signal, wherein the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band;
and transmitting the interference signal to prevent the wireless signal of any frequency band except the preset frequency band from leaking.
In another aspect, the present invention provides a wireless signal leakage protection device for an important place, including:
the interference module is used for generating an interference signal, and the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band;
and the signal transmitting module is used for transmitting the interference signal so as to prevent the wireless signal of any frequency band except the preset frequency band from leaking.
In yet another aspect, the present invention provides an electronic device for wireless signal leakage protection in a critical location, comprising:
the processor and the memory are communicated with each other through a bus; the memory stores program instructions executable by the processor, which when called by the processor are capable of performing the methods described above.
The method and the device for protecting the leakage of the wireless signals in the important places provided by the invention have the advantages that the frequency band signals needing to be interfered are removed in a targeted manner, the frequency band of the user needing normal communication is not interfered, and an information exchange path with the outside is provided for the user in the important places on the premise of ensuring that the information of the wireless signals in the important places cannot be leaked, so that the adverse effect caused by the fact that the user misses the outside information is prevented.
Drawings
FIG. 1 is a schematic diagram of a method for wireless signal leakage protection in a critical site according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a wireless signal leakage protection device for a critical site according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device for wireless signal leakage protection in an important place according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic diagram illustrating a method for protecting wireless signal leakage in a key site according to an embodiment of the present invention, and as shown in fig. 1, an implementation subject of the method for protecting wireless signal leakage in a key site is a wireless signal leakage protection device, which may be a separate device or a sub-module installed on a specific communication device. The method specifically comprises the following steps:
step S101, generating an interference signal, wherein the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band;
and step S102, transmitting the interference signal to prevent the wireless signal of any frequency band except the preset frequency band from leaking.
Specifically, first, the wireless signal leakage protection device generates an interference signal according to a preset frequency band, where the preset frequency band is a frequency band used when a user can normally receive and transmit communication data, and the interference signal is used to interfere or cancel an electromagnetic signal of any frequency band other than the preset frequency band.
Then, the wireless signal leakage protection device transmits the interference signal. Because the interference signal is sent, the interference signal interferes or offsets the electromagnetic signal of any frequency band except the preset frequency band, the electromagnetic signal of any frequency band except the preset frequency band can not be sent and received, and the electromagnetic signal of the preset frequency band is not influenced, so that the user can communicate with the outside through the preset frequency band in an important place, and the wireless signal leakage on any frequency band except the preset frequency band can be effectively prevented.
The communication data to be transmitted in the embodiment of the invention can be audio, video, pictures, texts, short messages and the like, and the embodiment of the invention is not limited, and can be determined according to the situation in practical application.
The method for protecting the leakage of the wireless signal in the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
On the basis of the foregoing embodiment, further, the generating an interference signal specifically includes:
generating an interference signal when a preset time point is reached;
correspondingly, transmitting communication data to be transmitted through the preset frequency band while transmitting the interference signal;
the preset time point generating method comprises the following steps: 1. when detecting that communication data to be transmitted need to be transmitted in a preset communication frequency band; 2. detecting that communication data are transmitted in a preset communication frequency range, wherein the transmitted signal strength exceeds a certain threshold value; 3. when a user-preset time point is reached.
Specifically, in this embodiment, the wireless signal leakage protection device may further have a communication data transceiving function, and when a preset time point is reached, the interference signal is generated, and the preset time point generating method at least includes: 1. when detecting that communication data to be transmitted need to be transmitted in a preset communication frequency band; 2. detecting that communication data are transmitted in a preset communication frequency range, wherein the transmitted signal strength exceeds a certain threshold value; 3. when a user-preset time point is reached. And transmitting the communication data to be transmitted through a preset frequency band while transmitting the interference signal. That is, the wireless signal leakage protection device can generate an interference signal to prevent a wireless signal leakage in any frequency band except a preset frequency band, and can perform data transmission. Therefore, in important places, a user can communicate with the outside through a preset frequency band only by using the wireless signal leakage protection device, and the wireless signal leakage on any frequency band except the preset frequency band can be effectively prevented.
The method for protecting the leakage of the wireless signal in the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
On the basis of the above embodiments, further, the wireless signal leakage protection device in the important place in the embodiments of the present invention may be brought into the important place, and the wireless signal leakage is prevented by the wireless signal leakage protection device, because the important place has sensitive information, the sensitive information generally mainly includes audio, video, pictures, texts, electromagnetic signals, and the like. Therefore, the device does not have any information acquisition function of audio and video, pictures, texts and the like and the operable sending function of a user in order to ensure that information leakage is not caused to important places.
On the basis of the above embodiments, further, the generating an interference signal, where the interference signal is used to interfere or cancel an electromagnetic signal in any frequency band except for the preset frequency band, specifically includes:
generating an interference sequence or a cancellation sequence on any frequency band except the preset frequency band, and acquiring an interference signal, wherein the interference signal is used for interfering or canceling the electromagnetic signal of any frequency band except the preset frequency band.
Specifically, the wireless signal leakage protection device acquires a preset frequency band set by a user or automatically set by an algorithm, and generates an interference signal according to the preset frequency band, that is, the wireless signal leakage protection device generates an interference sequence on any frequency band except the preset frequency band to acquire the interference signal, or generates a cancellation sequence on any frequency band except the preset frequency band to acquire the interference signal, and transmits communication data to be transmitted and the interference signal through the preset frequency band. Because the interference signal is sent when the communication data to be transmitted is transmitted, the interference signal interferes or offsets the electromagnetic signals of any frequency band except the preset frequency band, so that the electromagnetic signals of any frequency band except the preset frequency band can not be sent and received, and the electromagnetic signals of the preset frequency band are not influenced, thereby ensuring that in the important place, the communication with the outside can be carried out only through the preset frequency band, and the signals of other frequency bands can be interfered or offset by the interference signal.
It should be noted that the embodiment of the present invention only obtains the interference signal by generating the interference sequence or generating the cancellation sequence, but is not limited to these two forms, and the practical application may be determined as the case may be.
The method for protecting the leakage of the wireless signal in the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
On the basis of the above embodiments, further, the generating an interference signal, where the interference signal is used to interfere or cancel an electromagnetic signal in any frequency band except for the preset frequency band, specifically includes:
acquiring a target frequency band, wherein the target frequency band is different from a preset frequency band;
and generating an interference signal according to the target frequency band, wherein the interference signal is used for interfering or counteracting the electromagnetic signal of the target frequency band.
Specifically, the wireless signal leakage protection device acquires a target frequency band in an important place, the target frequency band is different from a preset frequency band, the target frequency band is a potential leakage frequency band, and other devices in the important place can leak confidential information through the target frequency band. The target frequency band may be obtained by manual setting by a user, or may be obtained by a specific algorithm, which is not limited in this embodiment.
After the wireless signal leakage protection device acquires the target frequency band, an interference signal is generated according to the target frequency band in a targeted manner, namely, the wireless signal leakage protection device generates an interference sequence on the target frequency band to acquire the interference signal, and also can generate a cancellation sequence on the target frequency band to acquire the interference signal, and transmits communication data to be transmitted and simultaneously transmits the interference signal through the preset frequency band. Because the interference signal is sent when the communication data to be transmitted is transmitted, the interference signal interferes or offsets the electromagnetic signal of the target frequency band, so that the electromagnetic signal passing through the target frequency band cannot be transmitted or received, and the electromagnetic signal passing through the preset frequency band is not affected, thereby ensuring that in the important place, the communication with the outside can be carried out only through the preset frequency band, and the signal on the target frequency band can be interfered or offset by the interference signal.
The method for protecting the leakage of the wireless signal in the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
On the basis of the foregoing embodiments, further, the obtaining of the target frequency band, where the target frequency band is different from the preset frequency band, specifically includes:
collecting electromagnetic signals of any frequency band except a preset frequency band as target electromagnetic signals;
and acquiring the frequency band to which the target electromagnetic signal belongs as a target frequency band.
Specifically, the specific method for the wireless signal leakage protection device to acquire the target frequency band is as follows:
firstly, the wireless signal leakage protection device collects electromagnetic signals of any frequency band except a preset frequency band as target electromagnetic signals. For example, the preset frequency band for the wireless signal leakage protection device to receive and transmit communication data is a GSM or CDMA frequency band, and the like, and the wireless signal leakage protection device collects electromagnetic signals of any frequency band except the GSM or CDMA frequency band as target electromagnetic signals.
And then, analyzing the target electromagnetic signal, and acquiring the frequency band of the target electromagnetic signal as a target frequency band, thereby obtaining the target frequency band.
The method for protecting the leakage of the wireless signal in the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
On the basis of the above embodiments, further, the acquiring electromagnetic signals of any frequency band except for the preset frequency band specifically includes:
determining a time point for acquiring electromagnetic signals of any frequency band except the preset frequency band according to the acquired preset time;
and acquiring electromagnetic signals of any frequency band except the preset frequency band according to the time point.
Specifically, when the electromagnetic signal is collected, the preset time may be selected according to specific conditions, for example, the electromagnetic signal may be collected according to a preset time interval manually input by a user, or may be collected according to a set algorithm, and the external signal may be collected and analyzed at a specified signal collection time point.
The wireless signal leakage protection device in the important place in the embodiment of the invention has a part of autonomous discrimination capability, interference signals do not need to exist all the time, electromagnetic signals are collected according to preset time, and the power consumption of the system is reduced.
The method for protecting the leakage of the wireless signal in the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
On the basis of the above embodiments, further, the acquiring an electromagnetic signal of any frequency band except for the preset frequency band as a target electromagnetic signal specifically includes:
collecting electromagnetic signals of any frequency band except a preset frequency band;
and if the signal intensity of the electromagnetic signal is judged to exceed a preset threshold value, taking the electromagnetic signal as a target electromagnetic signal.
Specifically, because the electromagnetic signals in important places are complex, the signal strength of potential divulgence electromagnetic signals needs to reach a certain threshold, and the risk of divulgence of electromagnetic signals with very weak signal strength is small. In order to increase the flexibility of the system, reduce the power consumption and reduce the complexity of the system, the wireless signal leakage protection device in the embodiment of the invention judges the signal intensity of the electromagnetic signal of any frequency band except the preset frequency band collected in an important place, and if the signal intensity of the electromagnetic signal is judged to exceed the preset threshold value, the electromagnetic signal is taken as the target electromagnetic signal.
And for the electromagnetic signals of which the signal intensity is lower than or equal to the preset threshold value, no processing is carried out.
According to the embodiment of the invention, the threshold value which can cause wireless signal leakage is set. If the acquired electromagnetic signals exceed the threshold value, interfering the secondary electromagnetic signals; and if the threshold value is not exceeded, no interference processing is carried out. And the threshold setting can be set according to the environment and the field, and the flexibility is strong.
The method for protecting the leakage of the wireless signal in the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
On the basis of the above embodiments, further, the method further includes:
and receiving the communication data to be received sent by the sending end through the preset frequency band.
Specifically, the wireless signal leakage protection device in the embodiment of the present invention further has a communication data receiving function, and the wireless signal leakage protection device can receive communication data to be received, which is sent by the sending end, in a preset frequency band.
The wireless signal leakage protection device analyzes the electromagnetic signal containing the communication data to be received, obtains the content of the communication data to be received, and displays the content, so that a user can look up the short message in time.
The method for protecting the leakage of the wireless signal in the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
Fig. 2 is a schematic diagram of a wireless signal leakage protection device for a critical site according to an embodiment of the present invention, as shown in fig. 2, an embodiment of the present invention provides a wireless signal leakage protection device for a critical site, which is used to implement the method described in the above embodiments, and specifically includes an interference module 201 and a signal transmitting module 202, wherein,
the interference module 201 is configured to generate an interference signal, where the interference signal is used to interfere or cancel an electromagnetic signal in any frequency band other than the preset frequency band;
the signal transmitting module 202 is configured to transmit the interference signal to prevent a wireless signal in any frequency band other than the preset frequency band from leaking.
Embodiments of the present invention provide a wireless signal leakage protection device for an important location, which is used to complete the method described in the above embodiments, and the specific steps of completing the method described in the above embodiments by using the device provided in this embodiment are the same as those in the above embodiments, and are not described herein again.
The wireless signal leakage protection device for the important place provided by the embodiment of the invention can remove the frequency band signal needing to be interfered in a targeted manner, does not interfere the frequency band which needs to be communicated normally by a user, provides a way for the user in the important place to exchange information with the outside on the premise of ensuring that the wireless signal information in the important place cannot be leaked, and prevents the user from missing the outside information to cause adverse consequences.
Fig. 3 is a schematic structural diagram of an electronic device for wireless signal leakage protection in an important place according to an embodiment of the present invention, and as shown in fig. 3, the electronic device includes: a processor 301, a memory 302, and a bus 303;
the processor 301 and the memory 302 complete communication with each other through the bus 303;
generating an interference signal, wherein the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band;
and transmitting the interference signal to prevent the wireless signal of any frequency band except the preset frequency band from leaking.
An embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer can execute the methods provided by the above method embodiments, for example, the method includes:
generating an interference signal, wherein the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band;
and transmitting the interference signal to prevent the wireless signal of any frequency band except the preset frequency band from leaking.
Embodiments of the present invention provide a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to perform the methods provided by the above method embodiments, for example, the methods include:
generating an interference signal, wherein the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band;
and transmitting the interference signal to prevent the wireless signal of any frequency band except the preset frequency band from leaking.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above-described embodiments of the apparatuses and devices are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A method for protecting wireless signal leakage in an important place, comprising:
generating an interference signal, wherein the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band;
transmitting the interference signal to prevent a wireless signal of any frequency band except the preset frequency band from leaking;
the generating of the interference signal, the interference signal being used for interfering or canceling the electromagnetic signal of any frequency band except the preset frequency band, specifically includes:
acquiring a target frequency band, wherein the target frequency band is different from a preset frequency band;
generating an interference signal according to the target frequency band, wherein the interference signal is used for interfering or counteracting the electromagnetic signal of the target frequency band;
the target frequency band is obtained, and the target frequency band is different from the preset frequency band, and specifically comprises the following steps:
collecting electromagnetic signals of any frequency band except a preset frequency band as target electromagnetic signals;
and acquiring the frequency band to which the target electromagnetic signal belongs as a target frequency band.
2. The method according to claim 1, wherein the generating of the interference signal is in particular:
generating an interference signal when a preset time point is reached;
correspondingly, transmitting communication data to be transmitted through the preset frequency band while transmitting the interference signal;
the preset time point generating method comprises the following steps: 1. when detecting that communication data to be transmitted need to be transmitted in a preset communication frequency band; 2. detecting that communication data are transmitted in a preset communication frequency range, wherein the transmitted signal strength exceeds a certain threshold value; 3. when a user-preset time point is reached.
3. The method according to claim 1, wherein the generating of the interference signal is configured to interfere or cancel an electromagnetic signal in any frequency band other than the predetermined frequency band, and specifically comprises:
generating an interference sequence or a cancellation sequence on any frequency band except the preset frequency band, and acquiring an interference signal, wherein the interference signal is used for interfering or canceling the electromagnetic signal of any frequency band except the preset frequency band.
4. The method according to claim 1, wherein the acquiring of the electromagnetic signals of any frequency band other than the preset frequency band comprises:
determining a time point for acquiring electromagnetic signals of any frequency band except the preset frequency band according to the acquired preset time;
and acquiring electromagnetic signals of any frequency band except the preset frequency band according to the time point.
5. The method according to claim 1, wherein the acquiring of the electromagnetic signal of any frequency band except the preset frequency band as the target electromagnetic signal specifically comprises:
collecting electromagnetic signals of any frequency band except a preset frequency band;
and if the signal intensity of the electromagnetic signal is judged to exceed a preset threshold value, taking the electromagnetic signal as a target electromagnetic signal.
6. The method of claim 2, further comprising:
and receiving the communication data to be received sent by the sending end through the preset frequency band.
7. A wireless signal leakage protection device for a critical location, comprising:
the interference module is used for generating an interference signal, and the interference signal is used for interfering or counteracting electromagnetic signals of any frequency band except a preset frequency band;
the signal transmitting module is used for transmitting communication data to be transmitted through the preset frequency band and simultaneously transmitting the interference signal so as to prevent the leakage of wireless signals of any frequency band except the preset frequency band;
the generating of the interference signal, the interference signal being used for interfering or canceling the electromagnetic signal of any frequency band except the preset frequency band, specifically includes:
acquiring a target frequency band, wherein the target frequency band is different from a preset frequency band;
generating an interference signal according to the target frequency band, wherein the interference signal is used for interfering or counteracting the electromagnetic signal of the target frequency band;
the target frequency band is obtained, and the target frequency band is different from the preset frequency band, and specifically comprises the following steps:
collecting electromagnetic signals of any frequency band except a preset frequency band as target electromagnetic signals;
and acquiring the frequency band to which the target electromagnetic signal belongs as a target frequency band.
8. An electronic device for wireless signal leakage protection for a premises, comprising:
the processor and the memory are communicated with each other through a bus; the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810646689.3A CN109150367B (en) | 2018-06-21 | 2018-06-21 | Method and device for protecting wireless signal leakage of important place |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810646689.3A CN109150367B (en) | 2018-06-21 | 2018-06-21 | Method and device for protecting wireless signal leakage of important place |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109150367A CN109150367A (en) | 2019-01-04 |
| CN109150367B true CN109150367B (en) | 2020-02-14 |
Family
ID=64802210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810646689.3A Active CN109150367B (en) | 2018-06-21 | 2018-06-21 | Method and device for protecting wireless signal leakage of important place |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109150367B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098890A (en) * | 2019-01-26 | 2019-08-06 | 鼎铉商用密码测评技术(深圳)有限公司 | A kind of interference signal generator, shell and shell |
| CN109782236B (en) * | 2019-02-27 | 2020-11-27 | 珠海格力电器股份有限公司 | Method and device for shielding data interaction by microwave radar |
| CN112953881B (en) * | 2019-11-26 | 2022-09-02 | 华为技术有限公司 | Signal processing device and network equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2285017A2 (en) * | 2006-08-02 | 2011-02-16 | Airbus Deutschland GmbH | Control device for shielding a room |
| CN202218225U (en) * | 2011-09-23 | 2012-05-09 | 长春卓尔信息安全产业股份有限公司 | Intelligent constant-frequency interferometer |
| CN205545294U (en) * | 2016-01-27 | 2016-08-31 | 中国移动通信集团贵州有限公司 | Signal interference system |
| CN106788872A (en) * | 2016-12-12 | 2017-05-31 | 北京中科飞鸿科技有限公司 | Guiding radio frequency interference equipment |
| CN107294639A (en) * | 2016-04-05 | 2017-10-24 | 上海无线通信研究中心 | A kind of signal of communication shielding device and its method towards LTE system |
| CN109490879A (en) * | 2017-09-13 | 2019-03-19 | 中兴通讯股份有限公司 | A kind of method and device for preventing millimeter wave from modeling imaging |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634539B (en) * | 2015-12-31 | 2018-10-30 | 华为技术有限公司 | A kind of interference elimination method and device |
| CN107809288B (en) * | 2017-10-30 | 2021-01-15 | 深圳无线电检测技术研究院 | Wireless interference test method and system |
| CN108183766A (en) * | 2018-02-07 | 2018-06-19 | 成都和跃科技有限公司 | It is a kind of anti-monitor, it is counter take on the sly, anti-burst type transmiter device |
-
2018
- 2018-06-21 CN CN201810646689.3A patent/CN109150367B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2285017A2 (en) * | 2006-08-02 | 2011-02-16 | Airbus Deutschland GmbH | Control device for shielding a room |
| CN202218225U (en) * | 2011-09-23 | 2012-05-09 | 长春卓尔信息安全产业股份有限公司 | Intelligent constant-frequency interferometer |
| CN205545294U (en) * | 2016-01-27 | 2016-08-31 | 中国移动通信集团贵州有限公司 | Signal interference system |
| CN107294639A (en) * | 2016-04-05 | 2017-10-24 | 上海无线通信研究中心 | A kind of signal of communication shielding device and its method towards LTE system |
| CN106788872A (en) * | 2016-12-12 | 2017-05-31 | 北京中科飞鸿科技有限公司 | Guiding radio frequency interference equipment |
| CN109490879A (en) * | 2017-09-13 | 2019-03-19 | 中兴通讯股份有限公司 | A kind of method and device for preventing millimeter wave from modeling imaging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109150367A (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109150367B (en) | Method and device for protecting wireless signal leakage of important place | |
| US11323953B2 (en) | Rogue base station router detection with machine learning algorithms | |
| CN106997314B (en) | Exception handling method, device and system for distributed system | |
| CN110049559B (en) | Interception indication method, terminal and network equipment | |
| CN102694820B (en) | Processing method of signature rule, server and intrusion defending system | |
| CN108712561A (en) | Right management method, device, mobile terminal and storage medium | |
| CN103970774A (en) | Notice icon clearing method and device | |
| CN108632460A (en) | Right management method, device, mobile terminal and storage medium | |
| CN105205967A (en) | Fire alarm monitoring method and system | |
| CN113796028A (en) | Interference processing method, interference processing device and control equipment | |
| US10699022B1 (en) | Interception of unauthorized communications in an controlled-environment facility | |
| CN110717661A (en) | Method and device for updating wind control rule | |
| CN110324675A (en) | The method and apparatus that signal quality monitoring is carried out to satellite broadcasting television system | |
| KR101256459B1 (en) | Method and apparatus for protecting phishing | |
| CN111010251B (en) | Information management and control method for radio electronic countermeasure based on communication coding change | |
| US20210297099A1 (en) | Filtering method and apparatus | |
| CN108419238A (en) | A kind of method and device of detection rogue AP | |
| CN107396319A (en) | A kind of method of wireless network authentication, equipment, storage medium and terminal reclaimer | |
| CN115883037A (en) | Method, device and terminal for detecting beam failure | |
| CN113556774A (en) | Interference positioning method, device, equipment and storage medium of mobile network | |
| CN108400957A (en) | A method of the intelligence confrontation Web vulnerability scannings based on detecting system simultaneously realize selfreparing | |
| CN109639335A (en) | A kind of wireless discharging-directly station self-excitation processing method and device | |
| WO2016150516A1 (en) | Optimizing data detection in communications | |
| CN117858071A (en) | Data set generation method, information transmission method, device and related equipment | |
| CN109120235B (en) | Gain switching method and user equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |