KR20170078897A - Portable controlling device for surveilling wireless multiple frequencies and method for surveilling wireless multiple frequencies using the same - Google Patents

Portable controlling device for surveilling wireless multiple frequencies and method for surveilling wireless multiple frequencies using the same Download PDF

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Publication number
KR20170078897A
KR20170078897A KR1020150188103A KR20150188103A KR20170078897A KR 20170078897 A KR20170078897 A KR 20170078897A KR 1020150188103 A KR1020150188103 A KR 1020150188103A KR 20150188103 A KR20150188103 A KR 20150188103A KR 20170078897 A KR20170078897 A KR 20170078897A
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KR
South Korea
Prior art keywords
illegal
signal
radio frequency
frequency signal
detected
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Application number
KR1020150188103A
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Korean (ko)
Inventor
류동주
정일안
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한국정보보호시스템(주)
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Priority to KR1020150188103A priority Critical patent/KR20170078897A/en
Publication of KR20170078897A publication Critical patent/KR20170078897A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/12—Detection or prevention of fraud
    • 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
    • H04K3/827—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection using characteristics of target signal or of transmission, e.g. using direct sequence spread spectrum or fast frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/18—Jamming or countermeasure used for a particular application for wireless local area networks or WLAN

Abstract

The present invention can effectively detect illegal or threatening behavior by detecting and scanning the lifestyle frequency band as a whole and analyzing and graphically providing information about the waveform of the detected frequency signal to check illegal / And a wireless multi-frequency monitoring method using the same.
A mobile type control device according to the present invention is a mobile type control device for monitoring illegal / threatening actions by monitoring a plurality of radio frequency bands, including: one or more antennas supporting a plurality of frequency bands; And an analysis processing unit for analyzing the radio frequency signal detected by the radio communication unit and determining whether the radio frequency signal is a signal corresponding to an illegal / threatening operation.

Description

TECHNICAL FIELD [0001] The present invention relates to a mobile control device capable of monitoring a multi-frequency wireless multi-frequency, and a wireless multi-frequency monitoring method using the same. BACKGROUND OF THE INVENTION 1. Field of the Invention [0002]

The present invention relates to a mobile control device capable of wireless multi-frequency monitoring and a wireless multi-frequency monitoring method using the same, and more particularly, to a mobile multi- Scanning can be performed effectively to detect illegal or threatening actions, and the information about the waveform of the detected frequency signal is analyzed and graphically provided, thereby making it possible to quickly and easily check illegal / threatening actions. And a wireless multi-frequency monitoring method using the same.

Recently, as mobile devices are used in various forms, wireless communication methods are also being developed variously. In particular, various short-range wireless communication technologies such as WiFi, Bluetooth, Near Field Communication (NFC) and Z-wave are used for data communication through mobile devices, inter-device interworking and various services. These wireless communication technologies are based on frequency.

As such various wireless communication technologies are being used, there are various types of malicious attacks using the weakness of wireless communication technology with weak security. In addition, illegal or threatening acts such as attacks or auditions using wireless communication technology are increasing.

To detect these illegal and threatening activities, the frequency band used by the device should be scanned and monitored. However, in the case of a conventional scanning device, detecting a single frequency band has a limitation in effectively detecting various illegal / threatening devices. That is, since different frequency bands are used in accordance with the wireless communication technology, there is a problem that it is difficult to detect an illegal device that uses a frequency band other than the frequency band detected by the scanning device. In order to achieve this, it was also inconvenient to use each scanning device for each possible frequency band.

In addition, the conventional scanning device displays a frequency waveform by dividing one frequency band into signals, so that the user must determine the illegal / threatening behavior by viewing the waveform of the displayed frequency. Therefore, not only the general public but also security experts have difficulty in judging whether the detected result is an illegal / threatening action, and it takes a long time to judge itself.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and method for efficiently detecting an illegal device by scanning and detecting an entire life frequency band that can be used by an illegal / And a mobile multi-frequency monitoring method using the same.

Another object of the present invention is to provide a method and apparatus for automatically analyzing a waveform of a detected frequency signal and performing graphical screen processing to display the detected result, thereby making it possible to intuitively and easily confirm whether the detected result corresponds to an illegal / And to provide a wireless multi-frequency monitoring method using the same.

In order to achieve the above object, a mobile type control device capable of monitoring a radio frequency multi-frequency according to the present invention is a mobile type control device for detecting illegal / threatening actions by monitoring a plurality of radio frequency bands, An antenna, at least one wireless communication unit for detecting a radio frequency signal for a plurality of frequency bands, and an analysis unit for analyzing a radio frequency signal detected by the wireless communication unit and determining whether the radio frequency signal is a signal corresponding to an illegal / And a processing unit.

The antenna preferably supports the used frequency band of WiFi, Bluetooth, NFC and JiWave, and the wireless communication part preferably senses signals of the used frequency band of WiFi, Bluetooth, NFC and JiWave. It is further preferred that the antenna supports a 13 MHz frequency band and a 2.3 to 5 GHz frequency band. The antenna and the wireless communication unit may be detachably mounted to the mobile control unit.

The mobile control device may further include a policy database storing a frequency signal waveform corresponding to each illegal / threatening operation. In this case, the analysis processing unit loads the frequency signal waveform corresponding to each illegal / threatening action from the policy database, compares and analyzes the similarity between each loaded frequency signal waveform and the detected radio frequency signal, Whether they are illegal / threatening and whether they are illegal / threatening. When the detected radio frequency signal is determined to be illegal / threatening, the analysis processing unit stores the waveform of the detected radio frequency signal in the policy database. The analysis processing unit also displays the frequency signal waveform of illegal / threatening actions stored in the policy database and the waveform of the detected radio frequency signal together.

The mobile type control device may further include a frequency intensity adjusting unit for adjusting sensitivity of the antenna and the wireless communication unit.

According to another aspect of the present invention, there is provided a wireless multi-frequency monitoring method using a mobile type control device, including: one or more antennas supporting a plurality of frequency bands; and one or more wireless communication units A wireless multi-frequency monitoring method for monitoring an illegal / threatening behavior by monitoring a plurality of radio frequency bands using a mobile type control apparatus including a mobile device, the method comprising: scanning a signal in a radio frequency band; Detecting a radio frequency signal, and analyzing the detected radio frequency signal to determine whether the radio frequency signal is a signal corresponding to an illegal / threatening operation.

Preferably, the antenna and the wireless communication unit support the used frequency bands of WiFi, Bluetooth, NFC, and GeWave.

More preferably, when the radio frequency signal is not detected or the signal strength is weak, the signal sensitivity of the antenna and the radio communication unit is increased, and when there is noise in the detected radio frequency signal, the signal sensitivity of the antenna and the radio communication unit is lowered.

The step of determining whether the radio frequency signal is a signal corresponding to an illegal / threatening action includes comparing and analyzing the similarity between the frequency signal waveform corresponding to each illegal / threatening operation and the detected radio frequency signal, Whether the frequency signal corresponds to an illegal / threatening action and the type of illegal / threatening action.

And displaying a waveform of the detected radio frequency signal and a typical frequency signal waveform of an illegal / threatening action together when it is determined that the detected radio frequency signal corresponds to an illegal / threatening action.

As described above, the mobile control device capable of monitoring the radio frequency multi-frequency according to the present invention and the radio multi-frequency monitoring method using the same can be applied to various types of life- Monitoring and signal detection of frequency bands can more effectively identify and detect devices that perform illegal / threatening actions.

In addition, if the analysis results in an illegal / threatening behavior, the information can be displayed in a graphical form that can be intuitively perceived by the user, so that the user can easily check the contents and take quick action without expertise in frequency signals and waveforms .

In addition, by adjusting the signal sensitivity of the antenna and the wireless communication unit according to the intensity of the detected signal, the wireless communication technology, and the like, it is possible to effectively detect and analyze a signal with respect to the non-reaching distance of the antenna.

1 is a configuration diagram of a mobile type control apparatus according to the present invention.
2 is a flowchart of a wireless multi-frequency monitoring process using a mobile control device according to the present invention.

Hereinafter, advantages, features, and preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a mobile type control apparatus according to the present invention. 1, a mobile control device 100 according to the present invention includes at least one antenna 110, at least one antenna 110 for transmitting and receiving wireless data through an antenna, and receiving and detecting a frequency signal according to an illegal / A wireless communication unit 120, an analysis processing unit 130 for analyzing frequency signals received and detected by the wireless communication unit and analyzing whether it is an illegal / threatening operation, a frequency intensity adjusting unit for adjusting sensitivity of transmission and reception of the antenna and the wireless communication unit 140, and information on illegal / threatened activities.

The antenna 110 radiates a signal transmitted from the wireless communication unit 120 and receives a wireless signal of another device and transmits the wireless signal to the wireless communication unit 120. The antenna 110 is configured to be compatible with the wireless communication unit 120 described below. The antenna 110 also uses wideband and multi-band antennas to support various frequency bands. The portable type control device 100 of the present embodiment is configured to be able to detect a frequency signal of the entire life-like shared frequency band. For this purpose, the antenna 110 is configured to cover the use frequency bands such as WiFi, Bluetooth, NFC, and geowave. Specifically, the NFC uses the 13 MHz band and the Ji-Wave uses the 2.4 GHz band in the life-like frequency band. Bluetooth also uses 2.4GHz band, and WiFi uses 2.4GHz and 5GHz band. Therefore, the antenna 110 supports the 2.3 to 5 GHz band and the 13 MHz band of the NFC. The antenna 110 may be formed in the form of an antenna pattern formed on a printed circuit board (PCB), or may be formed as a separate external antenna.

On the other hand, if it is desired to cover various lifestyle frequency bands through one antenna, the antenna pattern becomes complicated and gain may not be ensured in each frequency band. Therefore, according to the embodiment, the mobile type control apparatus 100 according to the present invention may include a plurality of antennas 110 with respect to a frequency band to be detected. For example, an antenna for detecting a low band such as NFC and an antenna for detecting a high band such as WiFi, Bluetooth, and geWave may be provided. In addition, for example, an auxiliary antenna for a high frequency band may be additionally provided to further enhance antenna performance. In addition, a separate antenna may be provided for each of WiFi, Bluetooth, and GeWave. In another embodiment, the antenna 110 may be configured to be removable as needed. In this case, the antenna can be selectively mounted on the mobile type control device according to the detection target frequency band and the detection range of the mobile type control device 100.

The wireless communication unit 120 performs wireless communication and detects and receives signals / data in the detected frequency band. The wireless communication unit 120 also supports the lifetime common frequency band, which is the detection target frequency, like the antenna 110. Also, the wireless communication unit 120 may be provided in a plurality of ways depending on the frequency band to be detected, and may be configured to be detachable in the same manner as the antenna 110. In this case, the wireless communication unit 120 ) Can be mounted and used.

The wireless communication unit 120 scans the signals of the respective frequency bands through the antenna 110 and uses a method of detecting a third signal rather than a method of referring to the data packets. For example, it scans the radio frequency band within the detection range and detects when a third frequency signal other than the identified signal is detected. The detected signal is analyzed through the analysis processing unit 130 to determine whether it is a signal for an illegal / threatening action. At this time, the signal sensitivity of the wireless communication unit 120 and the antenna 110 can be adjusted through a frequency intensity controller 140 described later. This makes it possible to detect not only a distance of not less than 15 m but also signals occurring within a range of not more than 1 m.

The analysis processing unit 130 analyzes signals detected by the wireless communication unit 120 to determine whether it is an illegal / threat operation, thereby detecting various spy transmission equipment or illegal audition devices. The analysis processing unit 130 analyzes the detected signal, and provides the analysis result by graphic screen processing. Specifically, the analysis processing unit 130 can determine whether an illegal / threatening action is performed by comparing the waveform of the detected frequency signal with the illegal / threatening action information, in cooperation with the policy database 150 described later. For example, the analysis processing unit 130 determines the degree of similarity by comparing the type of the detected frequency signal waveform with the waveform type of the cumulative illegal / threatening action, and determines whether or not it is an illegal / It can be judged. The analysis processing unit 130 controls the operation of the frequency intensity adjusting unit 140 to be described later to adjust the signal sensitivity of the antenna 110 and the wireless communication unit 120 to effectively detect a device using various wireless communication technologies can do.

The analysis processing unit 130 displays information on the detected signal through a separate display (not shown). At this time, the analysis processing unit 130 generates an analysis UI (User Interface) so that the user can intuitively understand and determine the information of the detected signal, and displays the analysis UI through a display. For example, the analysis processing unit 130 may process the frequency signal waveform into an intuitive form such as a graph or an image without directly displaying the data value of the detected signal. The analysis processing unit 130 may also provide a waveform of the detected signal and a signal waveform of an illegal / threatening action. Specifically, the analysis processing unit 130 loads the frequency signal waveform of the illegal / threatening action from the policy database 150 and compares and analyzes the signal with the detected signal. If it is determined that the detected signal corresponds to an illegal / The frequency signal waveform of the type of illegal / threatening activity stored in the database and the frequency signal waveform of the detected signal can be displayed together. At this time, by displaying the frequency signal waveform of the illegal / threatening operation and the frequency signal waveform of the detected signal in an overlapping manner, the user can more easily judge whether the detected signal corresponds to an illegal / threatening action . Meanwhile, according to the embodiment, a user interface unit for generating an analysis UI using analysis information of the analysis processing unit 130 may be separately configured.

In addition, the analysis processing unit 130 may provide a countermeasure according to an action type when it is determined that it is an illegal / threatening action as a result of analyzing the detected signal. For example, the analysis processing unit 130 may extract the corresponding policy information from the policy database 150 with respect to the analyzed types of illegal / threatening actions and provide the extracted corresponding policy information through the display. Meanwhile, the analysis processing unit 130 may be configured in software in the mobile type control device 100. [

The frequency strength adjuster 140 adjusts the transmit and receive signal strength and sensitivity of the antenna 110 and the wireless communication unit 120. Generally, WiFi has a signal reaching distance of less than 15m, Bluetooth has a signal reaching distance of 1 to 10m, and NFC has a signal reaching distance of less than 1m. Accordingly, the frequency strength controller 140 controls the antenna 110 and the wireless communication unit 120 to cover a distance of 1 m or more, a distance of 15 m or more, or a distance of 1 km, for example, ) To adjust the receivable frequency strength. The frequency strength adjuster 140 may adjust the frequency strength according to the wireless communication technology to be detected. The frequency strength adjuster 140 can automatically adjust the intensity of the frequency and adjust the intensity of the frequency according to the control of the analysis processor 130. For example, when a separate signal is not detected / detected through the wireless communication unit 120 or noise is severe due to a signal other than a signal to be detected, the analysis processing unit 130 transmits the signal It is possible to increase or decrease the signal sensitivity of the wireless communication unit 110 and the wireless communication unit 120. This improves the compatibility and compatibility of the antenna 110 and enables the wireless communication unit 120 to sense a minute frequency wave.

The policy database 150 cumulatively stores information on illegal / threatening actions. Specifically, the policy database 150 stores information on a frequency signal waveform according to an illegal / threatening behavior type. The frequency signal waveform information of the illegal / threatening actions stored in the policy database 150 includes not only the typical frequency signal waveform information for each illegal / threatening action, but also the information of the frequency signal waveform newly detected by the mobile device 100 . Accordingly, by accumulating various frequency signal waveform information on the types of illegal / threatening actions, the analysis processing unit 130 can more effectively analyze the illegal / threatening behavior and the behavior type of the detected frequency signal. The policy database 150 may store corresponding policy information for each type of illegal / threatening action. Also, the policy database 150 may be configured in the mobile type control device 100 or remotely. In this case, the mobile-type control device 110 can access the policy database 150 through the wired / wireless network and work together.

2 is a flowchart of a wireless multi-frequency monitoring process using a mobile control device according to the present invention. Hereinafter, a wireless multi-frequency monitoring process using the mobile type control apparatus according to the present invention will be described with reference to FIG.

First, the wireless communication unit 120 scans a signal of a radio frequency band in cooperation with the antenna 110 (ST100). The scanning operation of the wireless communication unit 120 may be performed under the control of the analysis processing unit 130. [ The wireless communication unit 120 can scan signals in each frequency band with a signal sensitivity that is basically set.

If no signal is detected in the ST 100, the frequency strength controller 140 adjusts the frequency sensitivity of the antenna 110 and the wireless communication unit 120 to adjust the signal sensitivity (ST 110 and ST 120). For example, when a signal is detected as a result of the scanning of the wireless communication unit 120 but the signal intensity is too weak to analyze the signal, the frequency strength controller 140 may adjust the frequency of the signal of the antenna 110 and the wireless communication unit 120 The sensitivity can be increased. In addition, if the scanning result signal of the wireless communication unit 120 is detected but the noise other than the detected signal is severe, the frequency strength controller 140 may lower the signal sensitivity of the antenna 110 and the wireless communication unit 120. The frequency strength controller 140 may adjust the frequency strength of the antenna 110 and the wireless communication unit 120 according to the wireless communication technology to be scanned. The operation of the frequency control unit 140 may be controlled by the analysis processing unit 130 or may be configured to automatically operate according to the signal detection state through the wireless communication unit 120. [

Meanwhile, when a signal is detected in ST100, the wireless communication unit 120 transmits the detected signal to the analysis processing unit 130 (ST110, ST130). The wireless communication unit 120 continuously detects and collects the detected signal and provides the detected signal to the analysis processing unit 130. If the signal strength of the detected signal is too weak or the analysis is difficult due to a large amount of noise, the analysis processing unit 130 may determine the strength of the signal transmitted from the antenna 110 and the wireless communication unit 120 through the frequency intensity control unit 140, It may be controlled to adjust the signal sensitivity. The analysis processing unit 130 interlocks with the policy database 150 to analyze whether the detected signal is a signal according to an illegal / threatening behavior. For example, the analysis processing unit 130 loads frequency signal waveform information of various illegal / threatening actions from the policy database 140 and compares it with the waveform of the detected signal to determine whether it is illegal / Determine the type of behavior.

When the analysis result of the analysis processing unit 130 indicates that the detected signal is a normal signal type, the analysis processing unit 130 may provide information indicating the normal signal through the display. In addition, no additional information may be provided for the normal signal. Thereafter, the signal detection and analysis process of ST100 to ST130 is continued.

On the other hand, if the signal detected as a result of analysis by the analysis processing unit 130 corresponds to an illegal / threatening action, the analysis processing unit provides the analysis result through the display (ST140, ST150). Specifically, the analysis processing unit 130 may provide information on the detected signal to an illegal / threatening action and information on the types of illegal / threatening actions. At this time, the analysis processing unit 130 generates an analysis UI so that the user can intuitively confirm that the detected signal corresponds to an illegal / threatening operation, rather than merely providing a data value or a signal waveform of the detected signal. to provide. For example, the analysis processing unit 130 may provide a display of the frequency signal waveform of the detected signal and the frequency signal waveform of the illegal / threatening behavior stored in the policy database 140 together. In addition, in order to promptly recognize the detection of an illegal / threatening operation, the analysis processing unit 130 may output an analysis UI through a display and control to generate a separate alarm sound. The analysis processing unit 130 may also provide corresponding policy information according to the type of illegal / threatening behavior of the detected signal. On the other hand, the analysis processing unit 130 may store the detected waveform of the frequency signal in the policy database 150. That is, the frequency signal waveform of the newly detected illegal / threatening action is updated and stored in the policy database 150, so that it can be utilized for signal analysis in the future.

Meanwhile, the analysis processing unit 130 may track the location of the illegal / threatening device that generates the detected signal and provide the corresponding location information. In one embodiment for tracking the location of the illegal / threatening device, the analysis processor 130 may first determine the wireless communication technology used by the illegal / threat device by analyzing the frequency band of the detected signal. In addition, the signal strength and the waveform are analyzed in consideration of the used wireless communication technology, and the relative distance and direction information between the mobile control device 100 and the corresponding device can be analyzed. Also, when the user carries the mobile control device 100 and tracks illegal / threat devices, the signal of the illegal / threat device is detected and detected through the antenna 110 and the wireless communication unit 120, and the analysis processing unit 130 By continuously analyzing the signal, the relative distance and direction information between the mobile control device and the illegal / threat device can be updated and provided.

While the preferred embodiments of the present invention have been described using specific terms, such description is for the purpose of describing the present invention only and is not to be taken in a way that will depart from the spirit and scope of the following claims .

100: mobile control device 110: antenna
120: wireless communication unit 130: analysis processing unit
140: frequency strength adjuster 150: policy database

Claims (15)

A mobile control device for monitoring illegal / threatening actions by monitoring a plurality of radio frequency bands,
One or more antennas supporting a plurality of frequency bands;
One or more radio communication units for detecting radio frequency signals for the plurality of frequency bands; And
And an analysis processing unit for analyzing a radio frequency signal detected by the radio communication unit and determining whether the radio frequency signal is a signal corresponding to an illegal / threatening operation.
The method according to claim 1,
Wherein the antenna supports a use frequency band of WiFi, Bluetooth, NFC, and GeWave,
Wherein the wireless communication unit senses a signal in a frequency band of use of WiFi, Bluetooth, NFC, and GeoWave.
The method according to claim 1,
Wherein,
13 MHz frequency band and 2.3 to 5 GHz frequency band.
The method according to claim 1,
Wherein the antenna and the radio communication unit are configured to be detachable from the mobile type control device.
The method according to claim 1,
Further comprising a policy database for storing a frequency signal waveform corresponding to each illegal / threatening action.
6. The method of claim 5,
The analysis processing unit,
A frequency signal waveform corresponding to each illegal / threatening action is loaded from the policy database, and a similarity degree between the loaded frequency signal waveform and a waveform of the detected radio frequency signal is compared and analyzed so that the detected radio frequency signal is illegal / Whether it is a threat or not and the type of illegal / threatening behavior.
6. The method of claim 5,
The analysis processing unit,
And stores the detected waveform of the radio frequency signal in the policy database when it is determined that the detected radio frequency signal is an illegal / threatening operation.
6. The method of claim 5,
The analysis processing unit,
And displays the frequency signal waveform of the illegal / threatening behavior stored in the policy database together with the waveform of the detected radio frequency signal.
The method according to claim 1,
And a frequency intensity controller for adjusting sensitivity of the antenna and the wireless communication unit to transmit and receive signals.
A plurality of radio frequency bands are monitored using a mobile control device including one or more antennas supporting a plurality of frequency bands and one or more radio communication sections for detecting radio frequency signals for the plurality of frequency bands, Frequency multi-frequency monitoring method,
Scanning a signal in a radio frequency band;
Detecting a radio frequency signal transmitted in the scanned radio frequency band; And
And analyzing the detected radio frequency signal to determine whether the radio frequency signal is a signal corresponding to an illegal / threatening operation.
11. The method of claim 10,
Wherein the antenna and the wireless communication unit support a used frequency band of WiFi, Bluetooth, NFC, and GeWave.
11. The method of claim 10,
And increasing the signal sensitivity of the antenna and the wireless communication unit when the radio frequency signal is not detected or the signal strength is weak.
11. The method of claim 10,
And when the detected radio frequency signal has noise, decreasing the signal sensitivity of the antenna and the radio communication unit.
11. The method of claim 10,
Wherein the step of determining whether the radio frequency signal is a signal corresponding to an illegal /
And compares and analyzes the similarity between the frequency signal waveform corresponding to each illegal / threatening operation and the waveform of the detected radio frequency signal to determine whether the detected radio frequency signal corresponds to an illegal / threatening operation and the type of illegal / Wherein the mobile multi-frequency monitoring method comprises the steps of:
11. The method of claim 10,
And displaying a waveform of the detected radio frequency signal and a typical frequency signal waveform of illegal / threatening actions together when it is determined that the detected radio frequency signal corresponds to an illegal / threatening behavior Frequency multi-frequency monitoring method using a mobile control device.
KR1020150188103A 2015-12-29 2015-12-29 Portable controlling device for surveilling wireless multiple frequencies and method for surveilling wireless multiple frequencies using the same KR20170078897A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102408559B1 (en) * 2021-05-24 2022-06-14 주식회사 케이앤어스 Method and Apparatus for Detecting Radio Signals that Transmit Illegally Collected Information through Pattern Analysis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102408559B1 (en) * 2021-05-24 2022-06-14 주식회사 케이앤어스 Method and Apparatus for Detecting Radio Signals that Transmit Illegally Collected Information through Pattern Analysis

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