CN111147158A - Method for shielding multi-frequency WIFI signal - Google Patents
Method for shielding multi-frequency WIFI signal Download PDFInfo
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- CN111147158A CN111147158A CN201911228492.9A CN201911228492A CN111147158A CN 111147158 A CN111147158 A CN 111147158A CN 201911228492 A CN201911228492 A CN 201911228492A CN 111147158 A CN111147158 A CN 111147158A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/60—Jamming involving special techniques
- H04K3/68—Jamming involving special techniques using passive jamming, e.g. by shielding or reflection
Abstract
The invention discloses a method for shielding multi-frequency WIFI signals, which comprises the following steps: s1, determining signal segments of the multi-frequency WIFI signals; s2, generating corresponding shielding signals aiming at signal segments of the multi-frequency WIFI signals respectively; s3, detecting the shielding quality of each shielding signal; s4, fine-tuning the shielding signal according to the detection result, and determining the signal segment of the shielding signal; s5, combining the signals of the shielding signals in sections and then transmitting the signals through a single antenna; the invention provides a method for shielding multi-frequency WIFI signals, which utilizes a multi-frequency combining technology to realize multi-frequency WIFI signal shielding, so that WIFI shielding signals with multiple frequencies are transmitted through a single antenna, the frequency band selectivity is strong, the occupied space is small, and the shielding effect is good; the method further performs spectrum analysis on the multi-frequency WIFI signal through the WIFI signal in advance before determining the shielding signal of the multi-frequency WIFI signal, transmits a corresponding shielding signal test, performs combination of the shielding signals after detecting the shielding effect, and improves the shielding effect of multi-frequency combination.
Description
Technical Field
The invention relates to the technical field of WIFI signal shielding, in particular to a method for shielding multi-frequency WIFI signals.
Background
WIFI is a technology that allows an electronic device to connect to a Wireless Local Area Network (WLAN), typically using the 2.4GUHF or 5G SHF ISM radio frequency bands. Connecting to a wireless local area network is typically password protected; but may be open, allowing any device within range of the WLAN to connect. The wireless network is a commercial certification in nature in the category of wireless local area networks, and is also a wireless networking technology, wherein a computer is connected through a network cable in the past, and wireless fidelity is connected through radio waves; a wireless router is commonly known, and the effective range of the radio wave coverage of the wireless router can be networked by adopting a wireless fidelity connection mode, and if the wireless router is connected with an ADSL line or another internet access line, the wireless router is also called a hotspot.
However, excessive WIFI causes unnecessary influence, in the prior art, frequency bands supported for WIFI signal shielding are few, the occupied space is large, the frequency band selectivity is small, and often only one antenna can support a shielding signal of one frequency band; therefore, the inventor provides a method for shielding the multi-frequency WIFI signal by integrating various factors.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for shielding a multi-frequency WIFI signal, and in order to solve the technical problem, the technical scheme of the present invention is as follows:
in order to solve the technical problems related to the background art, a method for shielding multi-frequency WIFI signals is provided.
The technical scheme adopted by the invention is as follows:
a method for shielding multi-frequency WIFI signals comprises the following steps:
s1, determining signal segments of the multi-frequency WIFI signals;
s2, generating corresponding shielding signals aiming at signal segments of the multi-frequency WIFI signals respectively;
s3, detecting the shielding quality of each shielding signal;
s4, fine-tuning the shielding signal according to the detection result, and determining the signal segment of the shielding signal;
s5, transmitting the signal of a plurality of shielding signals by a single antenna by a multi-frequency combining technology in a segmented mode;
wherein, the step of determining signal segments of the multi-frequency WIFI signals at S1 includes the following steps:
s101, respectively receiving multi-frequency WIFI signals;
s102, intermediate frequency processing;
and S103, carrying out spectrum analysis.
Wherein, the step of generating the shielding signals for the signal segments of the multi-frequency WIFI signals in S2 includes the following steps: s201, determining calculation parameters of a shielding signal according to spectrum analysis of the multi-frequency WIFI signal;
s202, generating a shielding signal according to the calculation parameters of the shielding signal.
Wherein the step of detecting the shielding quality of each shielding signal in S3 includes the following steps:
s301, receiving the shielded WIFI signal;
s302, carrying out spectrum analysis on the received WIFI signal;
and S303, determining the shielding quality.
In S4, the fine-tuning the mask signal according to the detection result and determining the signal segment of the mask signal includes the following steps:
s401, fine-tuning a shielding signal according to a detection result;
s402, determining signal segments of the shielding signals;
in S5, the step of transmitting the signal segments of the multiple shielding signals through the single antenna by using the multi-frequency combining technique includes the following steps:
s501, classifying a plurality of shielding signals to be combined in the multi-frequency combiner according to the frequency bands of the shielding signals to be combined, so that the input ports of the shielding signals of adjacent frequency bands are close together and arranged in a straight line;
s502, sub-cavities with independent signal spaces are respectively arranged in the multi-frequency combiner corresponding to the input ports;
s503, a resonator with a frequency band corresponding to the input port connected with the resonator is arranged in the sub cavity;
s504, a converging channel is arranged, and resonators with adjacent frequency bands and adjacent positions are connected through a lead;
the method further comprises S6 and checking the combined shielding quality of the multi-frequency WIFI signal.
The S6 checking the combined shielding quality of the multi-frequency WIFI signal comprises the following steps:
s601, receiving a WIFI signal shielded by a combiner;
s602, performing spectrum analysis on the WIFI signal subjected to the combined shielding;
and S603, determining the multi-frequency WIFI signal combination shielding quality.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention provides a method for shielding multi-frequency WIFI signals, which utilizes a multi-frequency combining technology to realize multi-frequency WIFI signal shielding, so that WIFI shielding signals with multiple frequencies are transmitted through a single antenna, the frequency band selectivity is strong, the occupied space is small, and the shielding effect is good.
2. The method further performs spectrum analysis on the multi-frequency WIFI signal through the WIFI signal in advance before determining the shielding signal of the multi-frequency WIFI signal, transmits a corresponding shielding signal test, performs combination of the shielding signals after detecting the shielding effect, and improves the shielding effect of multi-frequency combination.
3. The invention further provides a multi-frequency combining method, wherein the multi-frequency combining device is classified according to the frequency bands of a plurality of shielding signals needing to be combined, so that the input ports of the shielding signals of adjacent frequency bands are close together and arranged in a straight line; sub-cavities with independent signal spaces are respectively arranged in the multi-frequency combiner corresponding to the input ports; a resonator with a frequency band corresponding to the input port connected with the resonator is arranged in the sub-cavity; a merging channel is provided, and resonators adjacent in frequency band and position are connected by a wire.
4. The method further checks the combined shielding quality of the multi-frequency WIFI signal; receiving the WIFI signal shielded by the combination; carrying out spectrum analysis on the WIFI signal subjected to the combined shielding; and determining the shielding quality of the multi-frequency WIFI signal combiner.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic diagram of a further process of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In an embodiment, referring to fig. 1, a method for shielding a multi-frequency WIFI signal includes the following steps:
s1, determining signal segments of the multi-frequency WIFI signals;
s2, generating corresponding shielding signals aiming at signal segments of the multi-frequency WIFI signals respectively;
s3, detecting the shielding quality of each shielding signal;
s4, fine-tuning the shielding signal according to the detection result, and determining the signal segment of the shielding signal;
and S5, transmitting the signal segments of the shielding signals through a single antenna by using a multi-frequency combining technology.
The step of determining signal segmentation of the multi-frequency WIFI signal S1 includes the following steps:
s101, respectively receiving multi-frequency WIFI signals;
s102, intermediate frequency processing;
and S103, carrying out spectrum analysis.
The step of generating shielding signals for signal segments of the multi-frequency WIFI signal in the step S2 includes the steps of: s201, determining calculation parameters of a shielding signal according to spectrum analysis of the multi-frequency WIFI signal;
s202, generating a shielding signal according to the calculation parameters of the shielding signal.
The step of detecting the shielding quality of each shielding signal in S3 includes the following steps:
s301, receiving the shielded WIFI signal;
s302, carrying out spectrum analysis on the received WIFI signal;
and S303, determining the shielding quality.
In S4, the fine tuning of the mask signal according to the detection result and the determination of the signal segment of the mask signal include the following steps:
s401, fine-tuning a shielding signal according to a detection result;
s402, determining signal segments of the shielding signals;
in S5, the step of transmitting the signal segments of the multiple shielding signals through the single antenna by using the multi-frequency combining technique includes the following steps:
s501, classifying a plurality of shielding signals to be combined in the multi-frequency combiner according to the frequency bands of the shielding signals to be combined, so that the input ports of the shielding signals of adjacent frequency bands are close together and arranged in a straight line;
s502, sub-cavities with independent signal spaces are respectively arranged in the multi-frequency combiner corresponding to the input ports;
s503, a resonator with a frequency band corresponding to the input port connected with the resonator is arranged in the sub cavity;
s504, a converging channel is arranged, and resonators with adjacent frequency bands and adjacent positions are connected through a lead;
example two, refer to FIGS. 1-2; a method for shielding multi-frequency WIFI signals comprises the following steps:
s1, determining signal segments of the multi-frequency WIFI signals;
s2, generating corresponding shielding signals aiming at signal segments of the multi-frequency WIFI signals respectively;
s3, detecting the shielding quality of each shielding signal;
s4, fine-tuning the shielding signal according to the detection result, and determining the signal segment of the shielding signal;
and S5, transmitting the signal segments of the shielding signals through a single antenna by using a multi-frequency combining technology.
The step of determining signal segmentation of the multi-frequency WIFI signal S1 includes the following steps:
s101, respectively receiving multi-frequency WIFI signals;
s102, intermediate frequency processing;
and S103, carrying out spectrum analysis.
The step of generating shielding signals for signal segments of the multi-frequency WIFI signal in the step S2 includes the steps of: s201, determining calculation parameters of a shielding signal according to spectrum analysis of the multi-frequency WIFI signal;
s202, generating a shielding signal according to the calculation parameters of the shielding signal.
The step of detecting the shielding quality of each shielding signal in S3 includes the following steps:
s301, receiving the shielded WIFI signal;
s302, carrying out spectrum analysis on the received WIFI signal;
and S303, determining the shielding quality.
In S4, the fine tuning of the mask signal according to the detection result and the determination of the signal segment of the mask signal include the following steps:
s401, fine-tuning a shielding signal according to a detection result;
s402, determining signal segments of the shielding signals;
in S5, the step of transmitting the signal segments of the multiple shielding signals through the single antenna by using the multi-frequency combining technique includes the following steps:
s501, classifying a plurality of shielding signals to be combined in the multi-frequency combiner according to the frequency bands of the shielding signals to be combined, so that the input ports of the shielding signals of adjacent frequency bands are close together and arranged in a straight line;
s502, sub-cavities with independent signal spaces are respectively arranged in the multi-frequency combiner corresponding to the input ports;
s503, a resonator with a frequency band corresponding to the input port connected with the resonator is arranged in the sub cavity;
s504, a converging channel is arranged, and resonators with adjacent frequency bands and adjacent positions are connected through a lead;
the method further comprises S6 and checking the combined shielding quality of the multi-frequency WIFI signal.
The S6 step of checking the combined shielding quality of the multi-frequency WIFI signal comprises the following steps:
s601, receiving a WIFI signal shielded by a combiner;
s602, performing spectrum analysis on the WIFI signal subjected to the combined shielding;
and S603, determining the multi-frequency WIFI signal combination shielding quality.
The working principle is as follows: the invention provides a method for shielding multi-frequency WIFI signals, which utilizes a multi-frequency combining technology to realize multi-frequency WIFI signal shielding, so that WIFI shielding signals with multiple frequencies are transmitted through a single antenna, the frequency band selectivity is strong, the occupied space is small, and the shielding effect is good. The method further performs spectrum analysis on the multi-frequency WIFI signal through the WIFI signal in advance before determining the shielding signal of the multi-frequency WIFI signal, transmits a corresponding shielding signal test, performs combination of the shielding signals after detecting the shielding effect, and improves the shielding effect of multi-frequency combination. The invention further provides a multi-frequency combining method, wherein the multi-frequency combining device is classified according to the frequency bands of a plurality of shielding signals needing to be combined, so that the input ports of the shielding signals of adjacent frequency bands are close together and arranged in a straight line; sub-cavities with independent signal spaces are respectively arranged in the multi-frequency combiner corresponding to the input ports; a resonator with a frequency band corresponding to the input port connected with the resonator is arranged in the sub-cavity; arranging a converging channel, and connecting resonators with adjacent frequency bands and adjacent positions by using a lead; the method further checks the combined shielding quality of the multi-frequency WIFI signal; receiving the WIFI signal shielded by the combination; carrying out spectrum analysis on the WIFI signal subjected to the combined shielding; and determining the shielding quality of the multi-frequency WIFI signal combiner.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (8)
1. A method for shielding multi-frequency WIFI signals is characterized in that: the method comprises the following steps:
s1, determining signal segments of the multi-frequency WIFI signals;
s2, generating corresponding shielding signals aiming at signal segments of the multi-frequency WIFI signals respectively;
s3, detecting the shielding quality of each shielding signal;
s4, fine-tuning the shielding signal according to the detection result, and determining the signal segment of the shielding signal;
and S5, transmitting the signal segments of the shielding signals through a single antenna by using a multi-frequency combining technology.
2. The method of claim 1, wherein the method further comprises: the step of determining signal segmentation of the multi-frequency WIFI signal S1 includes the following steps:
s101, respectively receiving multi-frequency WIFI signals;
s102, intermediate frequency processing;
and S103, carrying out spectrum analysis.
3. The method of claim 1, wherein the method further comprises: the step of generating shielding signals for signal segments of the multi-frequency WIFI signal in the step S2 includes the steps of: s201, determining calculation parameters of a shielding signal according to spectrum analysis of the multi-frequency WIFI signal;
s202, generating a shielding signal according to the calculation parameters of the shielding signal.
4. The method of claim 1, wherein the method further comprises: the step of detecting the shielding quality of each shielding signal in S3 includes the following steps:
s301, receiving the shielded WIFI signal;
s302, carrying out spectrum analysis on the received WIFI signal;
and S303, determining the shielding quality.
5. The method of claim 1, wherein the method further comprises: in S4, the fine tuning of the mask signal according to the detection result and the determination of the signal segment of the mask signal include the following steps:
s401, fine-tuning a shielding signal according to a detection result;
s402, determining the signal segment of the shielding signal.
6. The method of any of claims 1-5, wherein the method further comprises: in S5, the step of transmitting the signal segments of the multiple shielding signals through the single antenna by using the multi-frequency combining technique includes the following steps:
s501, classifying a plurality of shielding signals to be combined in the multi-frequency combiner according to the frequency bands of the shielding signals to be combined, so that the input ports of the shielding signals of adjacent frequency bands are close together and arranged in a straight line;
s502, sub-cavities with independent signal spaces are respectively arranged in the multi-frequency combiner corresponding to the input ports;
s503, a resonator with a frequency band corresponding to the input port connected with the resonator is arranged in the sub cavity;
s504, a converging channel is arranged, and resonators with adjacent frequency bands and adjacent positions are connected through conducting wires.
7. The method of claim 6, wherein the method further comprises: the method further comprises S6 and checking the combined shielding quality of the multi-frequency WIFI signal.
8. The method of claim 7, wherein the method further comprises: the S6 step of checking the combined shielding quality of the multi-frequency WIFI signal comprises the following steps:
s601, receiving a WIFI signal shielded by a combiner;
s602, performing spectrum analysis on the WIFI signal subjected to the combined shielding;
and S603, determining the multi-frequency WIFI signal combination shielding quality.
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| CN201911228492.9A CN111147158A (en) | 2019-12-04 | 2019-12-04 | Method for shielding multi-frequency WIFI signal |
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| CN201911228492.9A CN111147158A (en) | 2019-12-04 | 2019-12-04 | Method for shielding multi-frequency WIFI signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114978410A (en) * | 2022-07-28 | 2022-08-30 | 杭州恒生数字设备科技有限公司 | Method and system for shielding radio signal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050166040A1 (en) * | 2002-12-02 | 2005-07-28 | Walmsley Simon R. | Embedding data and information related to function with which data is associated into a payload |
| CN101123762A (en) * | 2007-09-19 | 2008-02-13 | 长春卓尔信息安全产业股份有限公司 | Shielding method and device for environment protection mobile signals |
| CN101789536A (en) * | 2010-01-07 | 2010-07-28 | 东莞市苏普尔电子科技有限公司 | Multi-frequency combining method and combiner manufactured by implementing same |
| CN203071948U (en) * | 2013-01-04 | 2013-07-17 | 廖华芬 | A remotely-controlled enhanced full-band examination hall wireless signal shielding device |
| CN104539386A (en) * | 2014-12-26 | 2015-04-22 | 成都杰联祺业电子有限责任公司 | Interconnected type full-band signal shielding device, system and method |
| CN107425927A (en) * | 2017-03-30 | 2017-12-01 | 天津市德力电子仪器有限公司 | Method for rapidly detecting shielding effect of wireless signal shielding device |
| CN110474704A (en) * | 2019-08-12 | 2019-11-19 | 浙江三维通信科技有限公司 | Radio signal shielding method and device based on adjustable Sweep Source |
| CN110492952A (en) * | 2019-08-15 | 2019-11-22 | 浙江三维通信科技有限公司 | Signal shielding detection method and system |
-
2019
- 2019-12-04 CN CN201911228492.9A patent/CN111147158A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050166040A1 (en) * | 2002-12-02 | 2005-07-28 | Walmsley Simon R. | Embedding data and information related to function with which data is associated into a payload |
| CN101123762A (en) * | 2007-09-19 | 2008-02-13 | 长春卓尔信息安全产业股份有限公司 | Shielding method and device for environment protection mobile signals |
| CN101789536A (en) * | 2010-01-07 | 2010-07-28 | 东莞市苏普尔电子科技有限公司 | Multi-frequency combining method and combiner manufactured by implementing same |
| CN203071948U (en) * | 2013-01-04 | 2013-07-17 | 廖华芬 | A remotely-controlled enhanced full-band examination hall wireless signal shielding device |
| CN104539386A (en) * | 2014-12-26 | 2015-04-22 | 成都杰联祺业电子有限责任公司 | Interconnected type full-band signal shielding device, system and method |
| CN107425927A (en) * | 2017-03-30 | 2017-12-01 | 天津市德力电子仪器有限公司 | Method for rapidly detecting shielding effect of wireless signal shielding device |
| CN110474704A (en) * | 2019-08-12 | 2019-11-19 | 浙江三维通信科技有限公司 | Radio signal shielding method and device based on adjustable Sweep Source |
| CN110492952A (en) * | 2019-08-15 | 2019-11-22 | 浙江三维通信科技有限公司 | Signal shielding detection method and system |
Non-Patent Citations (2)
| Title |
|---|
| 娄嘉馨 等: "快速侦测式无线信号跟踪屏蔽器", 《科技风》 * |
| 陈松 等: "基于GSM/CDMA/PHS移动通信屏蔽系统的设计", 《湖南理工学院学报(自然科学版)》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114978410A (en) * | 2022-07-28 | 2022-08-30 | 杭州恒生数字设备科技有限公司 | Method and system for shielding radio signal |
| CN114978410B (en) * | 2022-07-28 | 2022-11-18 | 杭州恒生数字设备科技有限公司 | Method and system for shielding radio signal |
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