KR101214214B1 - Apparatus of jamming communication of mobile phone by using a method whether person is or not and the method thereof - Google Patents

Abstract

PURPOSE: Apparatus for providing a mobile phone call limit service by using a user presence determination technique and a method thereof are provided to free classes or performances from disturbance due to mobile phones, by being installed in a school, a movie theater, a theater or an arena. CONSTITUTION: A call limit service apparatus(200) is installed within a certain area around a human body detecting sensor, to restrict mobile phone calls in designated areas. A call limit service center(100) receives information sensed from the human body detection sensor through the call limit service apparatus. The call limit service center allows a call limit service through the call limit service apparatus. The call limit service center generates a masking signal about a downlink signal, based on each area code in which the human body detection sensor is installed. The call limit service center transmits the generated masking signal to the correspondent service area. [Reference numerals] (100) Call limit service center; (200) Call limit service apparatus; (250) Human body sensor; (AA) Base station

Description

Apparatus of jamming communication of mobile phone by using a method whether person is or not and the method

The present invention relates to a mobile phone call limiting service providing apparatus using a human body detection sensor, and more particularly, to determine the presence of a user from a human body sensor installed in a specific place to determine a white Gaussian downlink signal of a mobile phone in a corresponding area. The present invention relates to a mobile phone call limiting service providing apparatus using a user presence determination technique for inducing call restriction of a mobile phone in a specific area by masking with noise.

With the development of communication technology, various mobile communication devices such as cellular phones, personal communication systems (PCS), mobile satellite phones, pagers, and smart phones are rapidly being deployed. Accordingly, the use of the mobile communication device in a place that requires quiet, such as a church, a concert, a theater, a court, and an educational place, frequently causes damage to others. In addition, damages caused by voice phishing inducing cash transfers using a bank's cash now using a mobile phone are rapidly increasing. While these problems are widely recognized, various techniques for restricting the use of portable communication devices in public places have been proposed. Representative technologies include wireless communication blocking method and apparatus for transmitting noise power generated by noise generators such as broadband spreading signal generators in order to block wireless communication at a specific place (Korean Patent Laid-Open Publication No. 2000-31047), and the entire frequency band It consists of a wave blocking device (Korean Patent No. 2000-74654) capable of suppressing transmission and reception of all cellular phone terminals / pagers by sweeping oscillating evenly, and a filter for outputting a broadband noise generator and a frequency band of a disturbing object. Call limit generation device (Japanese Patent Laid-Open No. Hei 11-55225) which disables reception in a certain area, and wireless communication function prohibition system which automatically turns on / off the wireless communication device when entering or leaving the station (Japanese Patent Laid-Open Publication No. Hei 10-174165). Various technologies such as ho) are disclosed.

In addition, such a conventional call restriction technology is a device for transmitting a disturbance signal as a means for preventing the mobile communication signal from reaching the unnecessary area, mainly in the border area (for example, civilian control zone, etc. in the Republic of Korea). Also called OCNS (Orthogonal Channel Noise Simulator), it generates a disturbance signal for a specific communication signal and transmits it to a corresponding area.

However, such equipment generates a disturbance signal by analyzing a specific signal, and has a disadvantage in that the equipment configuration is complicated and expensive because it needs to cover a large area.

In addition, the conventional system can not only restrict the calls of users who do not need to block the call uniformly because comprehensive services are provided in any area, but also can cause unnecessary waste of power because the service is performed in the absence of users. There is this.

An object of the present invention is to be installed in schools, theaters, performance halls, stadiums, etc. to be free from disruption of classes or performances by mobile phones, and mobile phone calls that can prevent cheating through Internet search at various test sites. The present invention provides a limited service providing apparatus.

In addition, an object of the present invention is to provide an apparatus for providing a mobile phone call limiting service which is installed in an automated teller machine (ATM) of a bank and determines whether to provide a mobile phone call limit function by a human body sensor.

Call limit service providing apparatus using a user presence determination method of the present invention comprises a human body sensor for generating and transmitting the body detection information to determine the presence of the user; Receive human body detection information about the presence of the user from the human body sensor and determine this to send down masking signal of the mobile phone downlink signal with white Gaussian noise in the area where the user is located to limit the call of the mobile phone in a specific area Call limit service device installed within a certain distance to the human body sensor; And receiving the human body sensing information detected from the human body sensing sensor through the call restriction service apparatus, permitting the call restriction service to the call restriction service apparatus, and corresponding to the region code of each region where the human body sensing sensor is installed. Call restriction service center for controlling to generate and transmit a masking signal for the downlink signal in the service area.

The call limiting service device includes: a call limiting service module for measuring a strength of the downlink signal in a corresponding service area and generating and transmitting a masking signal with a signal strength corresponding thereto; And a control unit for controlling transmission of a masking signal for the downlink signal in a corresponding service area when the presence of the user is detected from the human body sensor.

Method for providing a mobile phone call restriction service using a user presence determination method of the present invention comprises the steps of detecting the presence of a human body through a human body sensor; Transmitting the human body sensing information and the downlink signal to the call restriction service center; Transmitting and storing permission information to the call restriction service device by the human body sensing information and the downlink signal; Operating, by the call restriction service device, a call restriction service module at a strength corresponding to the downlink signal; And checking, by the call limited service center, whether a call of the mobile terminal is detected and transmitting a masking signal for a downlink signal in a corresponding service area by the call limited service device.

The present invention further includes the step of providing the call restriction service by the call restriction service apparatus including a predetermined area code and attached to a place corresponding to the area code.

According to the present invention, there is an advantage that the call limiting service device according to the present invention can be free from interruption of class or performance by a mobile phone by installing the call limiting service device in a school, a theater, a performance hall, or the like.

In addition, according to the present invention, by installing the call restriction service device according to the present invention, such as automated teller machine (ATM) of the bank, there is an advantage that it is possible to prevent fraud damage due to voice phishing that has recently emerged as a social problem.

According to the present invention can determine the presence of the user from the human body sensor installed in a specific place can easily induce a call restriction of the mobile phone.

According to the present invention, by selectively transmitting a masking signal according to the presence or absence of a user, unnecessary power waste can be prevented, and a call function can be prevented from being restricted to an area / user for which call restriction is not required due to unconditional transmission of an interference signal. .

1 is a view showing a schematic configuration of a mobile phone call restriction service apparatus using a user presence determination technique according to the present invention.
2 is a view showing a specific configuration of a mobile phone call restriction service apparatus using a user presence determination method according to the present invention.
3 is a view showing a specific configuration of a call restriction service apparatus according to an embodiment of the present invention.
Figure 4 is a flow chart showing a call restriction service method using the human body sensing information according to an embodiment of the present invention.

The present invention induces a mobile communication call restriction by transmitting an Additive White Gaussian Noise (AWGN) generated from a noise diode to a corresponding area to mask downlink signals (ie, forward signals) of a mobile phone. A mobile phone call limiting service device can be provided.

The mobile phone call limiting service device according to an embodiment of the present invention can effectively adjust the noise signal strength of each frequency band transmitted from the device by measuring the strength of the forward signal of the base station by itself.

In addition, according to an embodiment of the present invention, by accommodating all the multiple communication methods serving in the region, masking all the white Gaussian noise for the corresponding frequency band according to each communication method, complete call restriction is achieved regardless of the mobile communication method. Provides multiband call restriction that is enabled.

In addition, in order to control the call restriction state according to the presence or absence of a user in a specific region (for example, in front of an ATM) according to another embodiment of the present invention, transmission of white Gaussian noise (AWGN) is performed using a human sensor. To control. That is, it is possible to prevent damages such as voice phishing by controlling the noise signal to be restricted only when there is a person within a specific area.

In addition, by sending a call restriction signal only to a user in a specific area (for example, within a 1.5m radius of the ATM), the call restriction signal effectively prevents voice phishing damage without interrupting the call of another mobile phone subscriber who does not use the ATM. You can prevent it.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a view showing the concept of a call restriction service apparatus according to the present invention. Referring to FIG. 1, the base station and the mobile phone 300 transmit and receive signals to each other, and a signal transmitted from the base station to the mobile phone 300 is called a downlink signal, and is transmitted from the mobile phone 300 to the base station. The transmitted signal is called an uplink signal. In the present invention, by masking the white Gaussian noise on the downlink signal (i.e., the forward signal), the call restriction of the mobile phone is induced.

The call limiting service device 200 is further added thereto, which is preferably connected to the call limiting service center 100 by wired or wireless.

As shown in FIG. 2, the call restriction service center 100 is interlocked with the human body sensor 250, the call restriction service control module 120, and the controller 220, and the call restriction service device 200 restricts the call. It includes a service module 210 and is connected to the control unit 220.

Call restriction service apparatus using the user presence determination method of the present invention is a human body sensor 250 for generating and transmitting the human body sensing information to determine the presence of the user, and whether the user exists from the human body sensor 250 Receives the human body sensing information for the call to determine this and to send a masking signal to the area where the user is located within a certain distance with the human body sensor 250 and the call restriction service device 200, the human body sensor 250 Receives the human body detection information detected from the call restriction service device 200 through the call restriction service device 200 to allow the call restriction service, the area of each area where the human body sensor 250 is installed Call restriction service which controls to generate and transmit a masking signal for downlink signal in the corresponding service area according to code Largely composed of 100.

Therefore, by selectively transmitting masking signals according to the presence or absence of the user, unnecessary power waste can be prevented and the call function can be prevented from being restricted to areas / users that do not need call restriction due to unconditional transmission of disturbing signals.

In addition, although not shown in the drawing, the call limiting service device includes a call limiting service module for limiting a call to a strength corresponding to the downlink signal, and when the call of the mobile terminal of the call limiting service center is detected, It may further include a recompensation circuit for recompensation to generate a re-signal.

The reason for blocking the downlink signal is that a large power is required when blocking the uplink signal, and may affect the performance of the base station. For example, a cellular phone signal has 20 channels with a bandwidth of 1.23 MHz, and a band of 869∼894 MHz (21 channels with a bandwidth of 1.25 MHz for the PCS, 1,840-1,870 MHz). . For the uplink, cellular uses the band 824-849 ㎒ and for PCS 1 750 ㎒-1780 ㎒.

On the other hand, the present invention is not limited to the call blocking of the above-described frequency band, the mobile phone call restriction service device using the 3G frequency band, such as WiMax (eg, 860 user presence determination method 885Mhz, 1475.9 user determination Mobile phone call limiting service device using the method 1510.9Mhz, 1844.9 user presence determination method Mobile phone call limiting service device using the method 1879.9Mhz, 2110 user presence determination method Mobile phone call limiting service device using the 2170Mhz, 1893 user determination method The mobile phone call limiting service device 1920Mhz, 2545 users can be applied to the call blocking of the mobile phone call limiting service device 2625Mhz, etc. using a determination method.

On the other hand, in order to block a call, a disturbance signal larger than the downlink signal received by the mobile phone must be radiated over the entire band. In order for the mobile phone to be connected to the base station, the signal of the base station must be sensed. The mobile phone call limit service device according to the present invention serves to interfere with a signal received from the mobile phone by radiating from the base station. At this time, the interruption signal blocking the call should not affect other services other than the mobile phone service, particularly in the hospital, it is preferable not to affect the operation of the medical equipment.

In this respect, the noise level of the call limiting service device according to the present invention measures the strength of the forward signal transmitted from the base station and determines the output level accordingly, thereby preventing unnecessary waste of power and without affecting the operation of other systems. In order to effectively mask only the signal of the service provider, it may be implemented to satisfy the spurious and ACPR (Adjacent Channel Power Ratio) specifications, etc. defined in each communication scheme standard (eg, IS-95, 3GPP, 3GPP2, etc.).

3 is a diagram showing the detailed structure of a call restriction service apparatus according to a second embodiment of the present invention. Referring to FIG. 3, the call limiting service device according to the second embodiment of the present invention includes a sensor (Human Sensor) 301, an antenna 302, a first switch 303, a first synthesizer 304, and a noise signal. Generator 305, second switch 306, first divider 307, band pass filter 308, second synthesizer 309, third switch 310, amplifier 311, controller 312 , A signal controller 313, a third synthesizer 314, a second divider 315, and the like.

First, a plurality of sensor units 301 installed in a specific area determine whether a person exists in the area. The sensing result of each sensor unit 301 is input to the control unit 312, and the control unit 312 transmits the noise signal only to the first switch 303 so that the noise signal is output only through the antenna 302 installed in the corresponding area. Set to mode.

That is, the first switch 303 transmits the downlink signal received from the antenna 302 installed in each area to the second switch 306 via the first synthesizer 304 and the amplifier, or the second synthesizer 304. And a white Gaussian noise signal (AWGN) provided through the second divider 315 through an antenna 302 installed at a corresponding position for each band. That is, when the call limit service device 200 is in the signal strength measurement mode for the downlink signal, the call limit service is switched to transmit a signal received through each antenna 302 at the corresponding position to the second switch 306, and the call limit service. When the device 200 is in the noise signal transmission mode, the respective white band Gaussian noise signal (AWGN) provided by the second synthesizer 314 and the second divider 315 is transmitted through the antenna 302 installed at the corresponding position. Switch.

The second switch 306 selects from the noise signal generator 305 and the downlink signal received from the antenna 302 installed at each position and outputs it to the first divider 307. The first distributor 307 distributes and outputs the signal selected by the second switch 306 by the number of each signal band to be transmitted. The signal distributed by the first distributor 307 is output as a signal of a corresponding mobile communication band through a band pass filter 308 according to each mobile communication band. Some signals that pass through the band pass filter 308 may be synthesized again through a second synthesizer 309.

As such, each band signal passing through the band pass filter 308 is output to the specific antenna 302 installed in each corresponding region by switching according to the mode of the third switch 310 or is input to the controller 312. .

That is, when the call limiting service device is in the signal strength measurement mode for the downlink signal in the corresponding area in which the specific antenna 301 is installed as described above, the signal input to the band pass filter 308 receives the antenna of the corresponding area ( Since the signal is received through 301, the third switch 310 is input to the controller 311 through the amplifier 311 by switching the third switch 310. The controller 312 measures the strength of the downlink signal received for each band in the corresponding area from the inputted signal for each band, and thereby the signal strength for each band of the noise signal to be masked for the corresponding band of the corresponding area. Will be determined.

On the other hand, when the call limit service device is in the noise signal transmission mode as described above, since the signal input to the band pass filter 308 is a signal provided from the noise signal generator 305, the switching of the third switch 310 is performed. By the signal adjusting unit 313, the third synthesizer 314, the second divider 315 and the first switch 303 is output to the antenna 302 of the corresponding area. As described above with reference to FIG. 2, the signal adjusting unit 313 adjusts the intensity of the noise signal for each band to be controlled by the control unit 312. In this case, the strength of the noise signal to be transmitted for each band is determined according to the strength of each corresponding band signal for the downlink signal received in the corresponding area as described above. The noise signal whose intensity is adjusted for each band in the signal controller 313 is synthesized through the third synthesizer 314 and transmitted to the antenna 302 installed in the corresponding region through the first switch 303.

Meanwhile, the signal controller 313 differentially attenuates each band signal by the control signal of the controller 312 (mobile call limit service device ATT_4 using the ATT_1 user presence determination technique), and further Each band signal is differentially amplified by the control signal (SW_13 mobile phone call limiting service device SW_13 using the SW_10 user presence determination technique).

As such, the noise signal for each band transmitted through the antenna 302 installed in each area is masked by the downlink signal of the corresponding band in the corresponding area, so that the downlink signal can be normally received by the mobile phone of the user located in the corresponding area. You will not be able to.

Hereinafter, a signal processing process according to each mode will be described with reference to FIG. 3.

First, when the call limiting service device is in a signal measurement mode for a downlink signal in a specific area, the first switch 302, the second switch 306, and the third switch 310 control signals of the controller 312. The mobile phone call restriction service device using the ANT_SW_1 user presence determination technique ANT_SW_4 and the mobile phone call restriction service device SW_9 using the SW_1 user presence determination technique are switched to the corresponding mode.

Accordingly, the signal received through the antenna 302 installed in each corresponding area is transmitted to the second switch 306 via the first switch 303 and the amplifier, and the received signal passing through the second switch 306 is It is input to the first divider 307 via a band pass filter and an amplifier. As described above, the first divider 307 is divided into a plurality of signals according to the number of bands of each mobile communication scheme, and each divided signal passes through the band pass filter 308 set for the corresponding band, thereby allowing each mobile communication frequency. It is output as a band signal. The signal passing through the band pass filter 308 or the second synthesizer 309 is amplified through the amplifier 311 such as PAD, Log Amp, etc. via the third switch 310 and then input to the controller 312. do. The controller 312 measures the signal strength of each band at a corresponding position, and then generates a control signal for each band based on the measured strength of each band-specific signal and outputs the signal through the antenna 302 at the corresponding position. This is reflected in the intensity control of the noise signal for each band to be transmitted.

That is, when the downlink signal of the corresponding band is strong, the noise signal masked in the corresponding band is transmitted as a strong signal in proportion thereto, and when the downlink signal of the corresponding band is weak, the noise signal masked in the corresponding band is proportionally proportional thereto. By transmitting a weak signal, effective call restriction is possible for each band.

Next, when it is determined that the user exists in the corresponding area by the sensor unit 301 installed in the specific area, and the call limiting service device operates in the noise signal transmission mode in the corresponding area, the first switch 303 and the second The switch 306 and the third switch 310 are switched to the corresponding mode according to the control signals ANT_SW_1 and SW_1 user presence determining technique of the control unit 312. Accordingly, the second switch 306 provides the signal output from the noise signal generator 305 to the first divider 307. That is, the signal output from the noise signal generator 305 is input by the second switch 306 to the first divider 307 via a band pass filter and an amplifier. The first splitter 307 divides the input noise signal of the entire band into a plurality of signals according to the number of bands of each mobile communication scheme, and each of the plurality of divided noise signals is allocated to the corresponding band in the same manner as the downlink frequency band. By passing through the band pass filter 308 is output as a noise signal of each mobile communication frequency band. The band-specific noise signal passing through the band pass filter 308 or the second synthesizer 309 passes through a third switch 310 to provide a signal controller 313 including a PAD, ATT, Amp, and band pass filter. After the signal is adjusted for each band, the signal is input to the third synthesizer 314.

In this case, the attenuator or amplifier of the signal adjusting unit 313 is a mobile phone call limiting service device using a control signal (ATT_1 user presence determination technique ATT_1, SW_10 user presence determination technique of the control unit 312). Attenuated and amplified differentially for each band according to SW_13). That is, by applying the strength of the transmitted noise signal differentially for each band in accordance with the signal strength measured for each frequency band in the downlink signal measurement mode, multiple communication schemes (eg, CDMA, WCDMA, LTE, HSDPA +, etc.) can be accommodated for complete call restriction.

As described above, the noise signal whose signal strength is adjusted for each frequency band by the signal controller 313 is synthesized through the third synthesizer 314 and then passed through the second divider 315 and the first switch 313. The antenna 312 is transmitted to the wireless space.

Hereinafter, a call restriction service method using human body sensing information according to the present invention will be described in detail with reference to FIG. 4.

First, the human body is detected in a predetermined region using a human body sensor (S101, S103).

Among these, the mobile terminal detection step S101 may be excluded. Because, when it is installed in the automation corner of the bank and continuous call suppression is executed, all calls in or around the space will be restricted, so the human body sensor and antenna are sent to each ATM device to send out the disturbance signal only when a person is detected around the ATM device. It is assumed that it is installed every time.

When the human approach is determined according to the human body sensing information, the controller transmits the human body sensing information and the downlink signal to the call restriction service center (S105).

Subsequently, the allowed information is transmitted and stored to the call restriction service device by the human body detection information and the downlink signal (S107).

The call limiting service device operates the call limiting service module at a strength corresponding to the downlink signal (S109).

In addition, the call restriction service center checks whether a call of the mobile terminal is detected, and transmits a masking signal for a downlink signal in the corresponding service area by the call restriction service device (S111).

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In addition, the present invention may be located in a certain region through the call restriction service apparatus, include a certain region code, and attached to a place corresponding to the region code to provide a call restriction service.

On the other hand, in the embodiment of the present invention has been described with respect to specific embodiments, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the appended claims, but also by the equivalents of the claims.

100: Call restriction service center
200: call restriction service device
300: mobile phone
301: sensor unit 302: antenna
303: first switch 304: first synthesizer
305: noise signal generator 306: second switch
307: first divider 308: band pass filter
309: second synthesizer 310: third switch
311 amplifying unit 312 control unit
313: signal controller 314: third synthesizer
315: second distributor

Claims (4)

A human body sensor configured to generate and transmit human body sensing information to determine whether a user exists;
Receive human body detection information about the presence of the user from the human body sensor and determine this to send down masking signal of the mobile phone downlink signal with white Gaussian noise in the area where the user is located to limit the call of the mobile phone in a specific area Call limit service device installed within a certain distance to the human body sensor; And
Receive the human body detection information detected by the human body sensor through the call restriction service device to allow the call restriction service to the call restriction service device, the corresponding service according to the area code of each area where the body detection sensor is installed A call restriction service center for generating and transmitting a masking signal for a downlink signal in an area;
Mobile phone call restriction service providing apparatus using a user presence determination technique comprising a. The method of claim 1,
The call restriction service device,
A call restriction service module for measuring a strength of the downlink signal in a corresponding service area and generating and transmitting a masking signal at a signal strength corresponding thereto; And
A control unit for controlling transmission of a masking signal for the downlink signal in a corresponding service area when the presence of the user is detected from the human body sensor;
Mobile phone call restriction service providing apparatus using a user presence determination technique further comprising a. Detecting the presence or absence of a human body through a human body sensor;
Transmitting the human body sensing information and the downlink signal to the call restriction service center;
Transmitting and storing permission information to the call restriction service device by the human body sensing information and the downlink signal;
Operating, by the call restriction service device, a call restriction service module at a strength corresponding to the downlink signal; And
Checking, by the call limited service center, whether a call of the mobile terminal is detected and transmitting a masking signal for a downlink signal in a corresponding service area by the call limited service device;
Mobile phone call restriction service providing method using a user presence determination technique comprising a. The method of claim 3,
The call restriction service apparatus includes a predetermined area code, and is attached to a place corresponding to the area code to provide a call restriction service.

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