KR20170078124A - Method and Apparatus for Detecting User Approach Based on RF Fingerprint - Google Patents

Abstract

The present invention relates to a method and apparatus for detecting an RF approach based on a fingerprint, and more particularly, it relates to a method and apparatus for detecting an RF approach based on at least one radio wave generator within a predetermined radius And the degree of access between the radio wave generator and the access detecting apparatus possessed by the user is calculated based on the radio signal information and the previously stored RF fingerprint, Prevention of disappearance, prevention of disappearance of dogs, and the like.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an RF fingerprint-

The present invention relates to an RF fingerprint based user access detection method and apparatus, and more particularly, to a method and apparatus for generating and storing an RF fingerprint of a radio wave generator that generates two or more radio signals, And comparing the radio signal information measured at the current location with the radio signal information measured at the current location to calculate the degree of access to the access detecting device of the user having the radio wave generating device.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

Unlike wired network, wireless is separated from network access point, so basically, it performs broadcast communication between device and wireless access device. Therefore, an attacker can attack various kinds of information such as DOS, phishing, and meson attack by using information that monitors the traffic communicated by individual devices without any special effort. Of course, the network administrator can also detect and respond to the occurrence of an attack threat by monitoring the traffic situation like an attacker.

However, the problem is whether or not a wireless attack is occurring when an attacker's clone AP data, which duplicates the device identification information such as the MAC address, SSID, and BSSID (Basic Service Set Identification) of the authorized AP, It is very important to be able to detect which one is the data frame sent by the attacker and the ability to identify which device is the attacker based on the strength of the received signal.

Accordingly, the fingerprinting technology can uniquely identify and uniquely classify a specific device through analysis of information received from a specific wireless device (e.g., physical hardware layer information such as a wireless modem, MAC software layer information such as a beacon header, etc.) It is important to extract the characteristic features, ie fingerprints, and there are various techniques depending on the way of extracting these features.

The fingerprinting mechanism is largely divided into a fingerprint generation and a classification step. The generation step is a step of extracting features that can uniquely distinguish a device by collecting and processing a wireless signal transmitted from the device, And judges whether the cloned device is a clone device by judging whether or not it matches the fingerprint of the device that is extracted and stored in the learning process.

By judging whether or not the device is a clone device through such a step, it is recognized as an authorized user if it is a normal device, not a clone device. In the conventional technology, the feature values of the radio environment extracted in the generation step are primarily If they match, they are recognized as normal devices.

However, this method has a problem that the clone device can be recognized as a normal device by producing a clone device having the same fingerprint as the normal device by replicating the feature values of the radio environment extracted at the generation step, There is a need for a method that can be utilized in areas other than simple user authentication by using the above-mentioned high level of security and characteristics of RF fingerprint.

US Patent Publication No. 2012/0042369 (titled DATA CARD, METHOD AND SYSTEM FOR IDENTIFYING FINGERPRINT WITH DATA CARD, Feb. 26, 2012)

In order to satisfy the above-mentioned requirement, the present invention is a method for searching for a radio signal of two or more radio signals transmitted by one or more radio wave generators by an approach detecting device, comparing the detected radio signal with a previously stored RF fingerprint, And the degree of access between the access detecting device and the radio wave generating device is calculated on the basis of the detected radio signal information and the previously stored RF fingerprint to help prevent the disappearance of the lost person, The present invention provides a user access detection method and apparatus capable of detecting a user access.

However, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

According to another aspect of the present invention, there is provided a method for detecting user access, comprising: searching for a radio signal transmitted by at least one radio wave generator; Extracting user information corresponding to the at least one radio wave generating device within a certain radius from the approach detecting device based on the comparison result, And calculating an access degree between the access detecting device and the at least one radio wave generating device corresponding to the extracted user information based on the RF fingerprint.

Wherein the calculating step may calculate a first distance value that is a distance between the at least one radio wave generator and the access detecting device based on the radio signal information and the RF fingerprint, A second distance value which is a distance value between the radio wave generator and the approach detecting device calculated before the first distance value calculation, the first distance value and the first and second distance values are calculated based on the calculated time difference, It is possible to calculate the approaching speed of the radio wave generating device.

Further, the method may further include receiving and storing an RF fingerprint according to a combination of two or more radio signals generated by the radio wave generator, from the at least one radio wave generator or the RF fingerprint management server before the searching step .

On the other hand, the user access detection method may be provided as a computer-readable recording medium on which a program for executing the method is recorded, and may be provided as a computer program stored in a computer-readable recording medium which is implemented to execute the method.

According to an aspect of the present invention, there is provided an access detection device including at least one communication module for detecting at least one radio signal around an access detecting device, a radio frequency identification device for storing an RF fingerprint generated by at least one radio wave generating device Wherein the control unit searches for at least one radio signal transmitted from at least one radio wave generator through the storage module and the communication module, Extracting user information corresponding to the at least one radio wave generator within a radius of the radio wave generator and based on the radio signal information and the RF fingerprint, And a control module for calculating the degree of approach between the two.

At this time, the control module may calculate a first distance value, which is a distance between the at least one radio wave generator and the access detecting device corresponding to the user information, based on the radio signal information and the RF fingerprint, Wherein the storage module further stores a distance value between the calculated wave generation device and the approach detection device, and the control module calculates a distance value between the radio wave generation device and the approach detection device calculated before the calculation of the first distance value, The approach speed of the at least one radio wave generator may be calculated on the basis of the time difference between the first distance value, the second distance value, the first distance value, and the first and second distance values.

The communication module transmits and receives data to and from the RF fingerprint management server and the at least one radio wave generator, and the control module transmits the radio wave signal to at least one radio wave signal combination generated by the at least one radio wave generator Receiving the RF fingerprint from the at least one radio wave generator or the RF fingerprint management server, and controlling the RF fingerprint to be stored in the storage module.

According to the present invention, the access detecting device compares at least two pieces of radio signal information searched for with the previously stored RF fingerprints, extracts user information corresponding to at least one radio wave generating device within a certain radius, By calculating the degree of access between the radio wave generating device and the access detecting device possessed by the user on the basis of the previously stored RF fingerprint, it is possible to obtain an excellent effect by preventing RFI fingerprint, preventing the disappearance of the elderly, have.

Particularly, when calculating the approaching degree, the distance and the approaching speed between the radio wave generating device and the approach detecting device are calculated, so that the user of the approach detecting device is able to know how far the object is protected and how far It is possible to efficiently protect the protection target.

1 is a block diagram of a user access detection system according to an embodiment of the present invention.
2 is a block diagram showing a configuration of a radio wave generator according to the present invention.
3 is a flowchart illustrating an operation method of a radio wave generator according to an embodiment of the present invention.
4 is a block diagram showing a configuration of an approach detecting apparatus according to the present invention.
5 to 6 are flowcharts for explaining an operation method of the approach detecting apparatus according to the embodiment of the present invention.
7 is a block diagram showing a configuration of an RF fingerprint management server according to the present invention.
8 to 9 are flowcharts illustrating an operation method of an RF fingerprint management server according to an embodiment of the present invention.
10 is a diagram illustrating an operating environment in a service system for user access detection according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS For a more complete understanding of the nature and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings, in which:

In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. It should be noted that the same constituent elements are denoted by the same reference numerals as possible throughout the drawings.

The terms and words used in the following description and drawings are not to be construed in an ordinary sense or a dictionary, and the inventor can properly define his or her invention as a concept of a term to be described in the best way It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

Also, terms including ordinal numbers such as first, second, etc. are used to describe various elements, and are used only for the purpose of distinguishing one element from another, Not used.

For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The singular expressions include plural expressions unless the context clearly dictates otherwise. It is also to be understood that the terms such as " comprising "or" having ", as used herein, are intended to specify the presence of stated features, integers, It should be understood that the foregoing does not preclude the presence or addition of other features, numbers, steps, operations, elements, parts, or combinations thereof.

Also, the terms "part," "module," and the like, which are described in the specification, refer to a unit for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software.

Also, the terms " a or ", "one "," the ", and the like are synonyms in the context of describing the invention (particularly in the context of the following claims) May be used in a sense including both singular and plural, unless the context clearly dictates otherwise.

In addition to the above-described terms, certain terms used in the following description are provided to facilitate understanding of the present invention, and the use of such specific terms may be changed to other forms without departing from the technical idea of the present invention.

In addition, embodiments within the scope of the present invention include computer-readable media having computer-executable instructions or data structures stored on computer-readable media.

Such computer-readable media can be any available media that is accessible by a general purpose or special purpose computer system.

By way of example, and not limitation, such computer-readable media can comprise RAM, ROM, EPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or in the form of computer- But is not limited to, a physical storage medium such as any other medium that can be used to store or communicate certain program code means of the general purpose or special purpose computer system, .

In addition, the invention may be practiced with other computer systems, including personal computers, laptop computers, handheld devices, multiprocessor systems, microprocessor-based or programmable consumer electronics, network PCs, minicomputers, mainframe computers, a pager, and the like. < RTI ID = 0.0 > [0040] < / RTI >

The invention may also be practiced in distributed systems environments where both local and remote computer systems linked by a combination of wired data links, wireless data links, or wired and wireless data links over a network perform tasks. In a distributed system environment, program modules may be located in local and remote memory storage devices.

On the other hand, the radio signal transmitted from the radio wave generator according to the present invention may be varied by Wi-Fi, Bluetooth, Zigbee, UWB (Ultra WideBand), NFC (Near Field Communication), RFID (Radio Frequency IDentification) And can be utilized as a radio wave generator according to the present invention if it is a device capable of generating a radio signal regardless of the type.

In addition, the radio wave generator according to the present invention may generate one type of radio signal, but may generate two or more radio signals.

Therefore, a user possessing the radio wave generator may have two or more radio wave generators for generating one type of radio signal, or may have one radio wave generator for generating two or more radio signals.

Of course, in some cases, there may be two or more radio wave generators for generating two or more radio signals.

For convenience of explanation, it is assumed that the user has a radio wave generator that generates two or more radio signals.

A radio wave generator for generating two or more radio signals may be a smart phone. Therefore, for convenience of explanation, it is assumed that the radio wave generator is a smartphone.

However, the above-described radio wave generator is not limited to a smart phone, and any device capable of generating two or more radio signals can be a radio wave generator according to an embodiment of the present invention.

The access detecting device for detecting the degree of approach of the radio wave generator may also be a smart phone. Therefore, the radio wave generating device and the approach detecting device do not necessarily have to be different kinds of devices, and two or more same kind of devices can perform the functions of the radio wave generating device and the approach detecting device, respectively, as needed.

Now, an apparatus for user access detection in a user access detection system according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 schematically illustrates a structure of a user access detection system according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 1, a user access detection system according to an embodiment of the present invention may include a radio wave generator 200, an access detecting device 300, and an RF fingerprint management server 400.

Here, the radio wave generator 200 can transmit various kinds of radio signals as described above, and therefore, the radio signals that the approach detecting device 300 searches are not limited to specific radio signals.

The radio wave generator 200 and the access detecting device 300 are interlocked with the RF fingerprint management server 400 through the communication network 100.

Each component will now be schematically described with reference to FIG.

The communication network 100 transmits data for data transmission and reception between the radio wave generator 200 and the access detecting device 300 and the RF fingerprint management server 400. In accordance with a system implementation method, ), xDSL (ADSL, VDSL), HFC (Hybrid Fiber Coaxial Cable), FTTC (Fiber to the Curb), FTTH (Fiber To The Home) Wi-Fi, Wibro, WiMAX, High Speed Downlink Packet Access (HSDPA), Long Term Evolution (LTE), and Long Term Evolution Advanced (LTE-A).

In addition, the communication network 100 may include a plurality of access networks (not shown) and a core network (not shown), and may include an external network such as an Internet network (not shown). An access network (not shown) is an access network that performs wired / wireless communication with the terminal device 300 and includes a plurality of base stations such as a base station (BS), a base transceiver station (BTS), a NodeB, an eNodeB, (Base Station Controller), and an RNC (Radio Network Controller). Also, as described above, the digital signal processing unit and the radio signal processing unit integrally implemented in the base station are divided into digital units (hereinafter, referred to as DUs and radio units (RUs) A plurality of RUs (not shown) may be provided in each of a plurality of areas, and a plurality of RUs (not shown) may be connected to a centralized DU (not shown).

A core network (not shown) constituting a mobile network together with an access network (not shown) performs a role of connecting an access network (not shown) and an external network (not shown), for example, an Internet network (not shown).

As described above, the core network (not shown) is a network system that performs main functions for mobile communication services such as mobility control and switching between access networks (not shown), and includes a circuit switching or a packet exchange and manages and controls the packet flow in the mobile network. The core network (not shown) manages inter-frequency mobility and plays a role for interworking with traffic in an access network (not shown) and a core network (not shown) and other networks such as the Internet It is possible. Such a core network (not shown) may further include an SGW (Serving Gate Way), a PGW (PDN GateWay), an MSC (Mobile Switching Center), a HLR (Home Location Register), a MME (Mobile Mobility Entity) .

The internet network (not shown) refers to a public network, that is, a public network, in which information is exchanged according to the TCP / IP protocol. The Internet network is connected to the radio wave generator 200 or the access detecting device 300, Information provided from the radio wave generator 200 or the access detecting device 300 can be provided to the RF fingerprint management server 400 through a core network (not shown) and an access network (not shown) The information provided to the management server 400 may be provided to the access detecting device 300 via a core network (not shown) and an access network (not shown). However, the present invention is not limited thereto, and the RF fingerprint management server 400 may be integrated with the core network (not shown).

In addition to the above-described communication methods, other widely known or later-developed communication methods may be included.

The radio wave generator 200 refers to a device that transmits one or more different kinds of radio signals periodically or aperiodically.

The radio wave generator 200 generates an RF fingerprint according to at least two combinations of the radio signals transmitted from the radio wave generator 200 and at least one reference position.

At this time, the information included in the RF fingerprint includes identification information (e.g., ID of the radio wave generator) of the radio wave generator 200, radio signal transmission power, frequency channel information of two or more radio signals And any information can be included in the RF fingerprint as long as a unique value capable of representing the propagating device 300 can be generated by combination of radio signals in addition to this information.

The radio wave generator 200 generating the RF fingerprint transmits the generated RF fingerprint to the RF fingerprint management server 400 or the access detecting device 300.

The radio wave generator 200 receives a user request for selecting a combination of two or more radio signals, and transmits a radio signal according to the selected combination of radio signals.

For example, if the user selects the Bluetooth signal and the NFC signal, the radio wave generator 200 transmits the Bluetooth signal and the NFC signal.

However, the input relating to the selection of the combination of two or more radio signals may be received directly from the radio wave generator 200, or received remotely from the access detecting device 300 or the like.

In addition, two or more wireless signals may be transmitted for general data transmission / reception without inputting a user's request separately, thereby determining the degree of access by the user.

That is, if the radio wave generator 200 transmits and receives data with the Bluetooth earphone while transmitting the Bluetooth radio signal for connection with the Bluetooth earphone, and continuously transmits the NFC radio signal for paying the public transportation fee, The access detecting device 300 can detect the access degree.

The access detecting apparatus 300 of the present invention searches for and detects a radio signal transmitted from the radio wave generator 200 according to a user's operation and transmits the radio signal to the RF fingerprint management server 400 via the communication network 100, And the like.

The proximity detecting apparatus 300 according to the embodiment of the present invention may transmit an RF fingerprint according to a combination of two or more radio signals transmitted by at least one radio wave generator 200 to the radio wave generator 200 or the RF fingerprint management server 400 and stores them.

Then, the access detecting device 300 searches for two or more radio signals detected in the vicinity of the access detecting device 300, compares the two or more pieces of the detected radio signal information with stored RF fingerprints, Extracts one or more radio wave generators 200 within a certain radius from the detection device 300 and extracts user information corresponding to the extracted radio wave generators 200.

That is, the two or more searched radio signal information are compared with the stored RF fingerprints to determine the identification information of the radio wave generator 200, and information on the user holding the radio wave generator 200 through the identification information .

The degree of access between the radio wave generator 200 and the access detecting device 300 is calculated based on the radio signal information and the RF fingerprint so that the access between the radio wave generator 200 owner and the user of the access detecting device 300 At this time, the degree of approach may include a distance between the radio wave generator 200 and the access detecting device 300, a relative approach speed, and the like.

Therefore, the approach detecting device 300 calculates the first distance value, which is the distance between the radio wave generator 200 and the approach detecting device 300, based on the stored RF fingerprint and two or more radio signal information searched, The distance value can be stored.

At this time, the stored distance value is referred to as a second distance value for convenience of explanation.

That is, the second distance value means a distance value between the radio wave generator 200 and the approach detecting device 300 calculated before the first distance value is calculated.

Therefore, when the approach detecting device 300 determines the relative approach speed between the radio wave generator 200 and the approach detecting device 300 based on the calculated time difference between the first distance value, the second distance value, and the first and second distance values .

For example, if the currently calculated first distance value is 5 m, the second distance value previously calculated and stored by the approach detecting device 300 is 10 m, the first distance value is calculated at 14: 20: 30 seconds , And the second distance value is calculated at 14:20:25, the difference between the first distance value and the second distance value is 5 m, and the difference between the calculated first and second distance values is 5 seconds, means that the owner of the at least one radio wave generator 200 is approaching the user of the access detecting device 300 at the speed of " s "

Here, the first distance value calculated and stored first is 5 m, the currently calculated first distance value is 10 m, the first distance value is calculated at 14: 20: 30 seconds, and the second distance value is 14:20:25 It means that the holder possessed by at least one radio wave generator 200 is moving away from the user of the access detecting device 300 at a speed of 5 m / s.

Here, the 5m value indicated by the first distance value and the 10m value indicated by the second distance value are not information considering the direction, and the radio wave generating device 200 from the approach detecting device 300 is presently at a radius of 5m, In this case, the first and second distance values may be calculated using the radio wave generator 200 or the approach detecting device 300 having the directivity, If the direction to the approach detecting device 300 of the radio wave generator 200 at the time of calculation can be found, accurate relative approach speeds can be calculated.

The approach detecting device 300 that calculates the approaching degree between the approach detecting device 300 and the radio wave generating device 200 as described above exposes the calculated result to the user so that the degree of access to the radio wave generating device 200 .

Meanwhile, the process of calculating the degree of access between the radio wave generator 200 and the access detecting device 300 may be performed by the RF fingerprint management server 400.

In this case, the access detecting device 300 searches for two or more surrounding radio signals, transmits the detected radio signal information to the RF fingerprint management server 400, and transmits the radio signal information to the RF fingerprint management server 400 The degree of approach between the detecting device 300 and the radio wave generator 200, that is, the distance between the approach detecting device 300 and the radio wave generator 200, and the relative approaching speed can be received and provided to the user.

Meanwhile, as described above, the access detecting device 300 and the radio wave generator 200 may be a terminal device that typically generates two or more radio signals including a smart phone.

However, the terminal device including the access detecting device 300 and the radio wave generating device 200 is not limited to a smart phone, and may be implemented in various forms.

For example, the access detecting device 300 and the radio wave generating device 200 described in this specification may be applied to a smart phone, a tablet PC, a personal digital assistant (PDA), a portable multimedia player (PMP) , An MP3 player, a fixed terminal such as a smart TV, a desktop computer, or the like may be used.

The proximity detecting apparatus 300 and the radio wave generating apparatus 200 of the present invention can not enumerate all of the variations of the portable apparatus according to the convergence trend of the digital apparatus, If an equivalent level unit can be used as the access detecting device 300 and the radio wave generating device 200 according to the present invention and the device capable of downloading and installing an app for calculating the access degree according to the present invention, Can be used as the approach detecting device 300 and the radio wave generator 200 according to the embodiment of the present invention.

The access detecting device 300 and the radio wave generating device 200 may be a user's device capable of transmitting and receiving various data via the communication network 100 according to a user's operation. Such a terminal device can perform voice or data communication through the communication network 100 and can exchange information with the RF fingerprint management server 400 through the communication network 100 and can transmit and receive a call based on a wireless signal A memory for storing programs and protocols for communication, and various communications. A terminal device such as the radio wave generator 200 and the approach detecting device 300 of the present invention may include a microprocessor for executing and controlling a radio signal program.

The access detecting device 300 and the radio wave generating device 200 access the apps providing device (not shown) connected to the communication network 100, for example, an app store, receive radio signals from the app store, An application for extracting a characteristic value of a signal can be received and installed. The terminal device executes the above-mentioned application, detects the two or more wireless signals, extracts radio signal characteristic information, that is, RF fingerprint, and transmits it to the RF fingerprint management server 400, (E.g., user authentication, etc.) mapped to the corresponding radio signal characteristic information from the base station 400 and provide the service to the user.

The RF fingerprint management server 400 is a device that stores an RF fingerprint for two or more combinations of radio signals transmitted by at least one radio wave generator 200 and provides an RF fingerprint stored in the access detecting device 300. [ to be.

In particular, in the present invention, the RF fingerprint management server 400 receives and stores an RF fingerprint according to a combination of two or more radio signals from at least one radio wave generator 200, When the transmission request is received, the RF fingerprint is transmitted to the access detecting device 300 according to the transmission request.

The RF fingerprint management server 400 may calculate and transmit the process of calculating the access level between the access detecting device 300 and at least one radio wave generator 200, rather than the access detecting device 300, In this case, the RF fingerprint management server 400 may transmit the calculated accessibility result to the access detecting device 300 and provide the result to the user of the access detecting device 300.

That is, the access detecting device 300 receives from the access detecting device 300 two or more radio signal information searched for, compares the received radio signal information with previously stored RF fingerprint information, As shown in FIG.

At this time, the user information to be extracted can extract user information corresponding to the radio wave generator 200 within a certain radius from the access detecting device 300.

The degree of approach between the approach detecting device 300 and the radio wave generator 200 is calculated based on the received radio signal information and the RF fingerprint. Generator 200, or may be a relative speed.

When the relative speed is calculated, the distance between the approach detecting device 300 and the radio wave generating device 200 is calculated and stored (second distance value), and after a predetermined time, the approach detecting device 300 and the radio wave generating device The first distance value, the second distance value, and the first and second distance values may be calculated based on the calculated time difference.

The RF fingerprint management server 400 transmits the numerical value of the calculated access degree to the access detecting device 300 to provide the value to the user.

The RF fingerprint management server 400 according to the embodiment of the present invention has the same hardware configuration as a typical Web server or a network server. However, the software includes a program module implemented through a language such as C, C ++, Java, Visual Basic, Visual C, or the like.

On the other hand, the memory mounted on each device of the present invention stores information in the device. In one implementation, the memory is a computer-readable medium. In one implementation, the memory may be a volatile memory unit, and in other embodiments, the memory may be a non-volatile memory unit. In one implementation, the storage device is a computer-readable medium.

In various different implementations, the storage device may comprise, for example, a hard disk device, an optical disk device, or any other mass storage device.

Although the present specification and drawings describe exemplary device configurations, the functional operations and subject matter implementations described herein may be embodied in other types of digital electronic circuitry, or alternatively, of the structures disclosed herein and their structural equivalents May be embodied in computer software, firmware, or hardware, including, or in combination with, one or more of the foregoing.

Implementations of the subject matter described herein may be embodied in one or more computer program products, i. E. One for computer program instructions encoded on a program storage medium of the type for < RTI ID = 0.0 & And can be implemented as a module as described above. The computer-readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of matter that affects the machine readable propagation type signal, or a combination of one or more of the foregoing.

The RF fingerprint-based user access detection system according to an embodiment of the present invention has been schematically described above.

Hereinafter, the configuration and operation method of the radio wave generator 200 according to the present invention will be described.

FIG. 2 is a block diagram showing the main configuration of the radio wave generator 200, and FIG. 3 is a flowchart for explaining an operation method of the radio wave generator 200 according to the embodiment of the present invention.

Referring to FIG. 2, a radio wave generator 200 according to the present invention includes an input module 210, an output module 230, a storage module 250, at least one communication module 270, a control module 290 ). ≪ / RTI >

The input module 210 receives various information such as numbers and character information, sets various functions, and transmits signals to the control module 290 in connection with function control of the radio wave generator 200. In addition, the input module 210 may include at least one of a keypad and a touchpad that generates an input signal according to a user's touch or operation. At this time, the input module 210 may be configured in the form of a touch panel (or a touch screen) together with the output module 230 to simultaneously perform input and display functions. The input module 210 may be any input device such as a keyboard, a keypad, a mouse, a joystick, and the like. In particular, the input module 210 according to the present invention senses input information input from a user and transmits the input information to the control module 290.

In particular, in the present invention, the input module 210 receives input from the user as to which two or more signals among the plurality of radio signals are to be transmitted, and transmits the input information to the control module 290.

The output module 230 displays information on a series of operation states, operation results, and the like that occur while the function of the radio wave generator 200 is performed. The output module 230 may display a menu of the radio wave generator 200 and user data input by the user. The output module 230 may be a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), a light emitting diode (LED), an organic light emitting diode (OLED) An organic light emitting diode (OLED), an organic light emitting diode (OLED), a retina display, a flexible display, and a three-dimensional display. In this case, when the output module 230 is configured as a touch screen, the output module 230 may perform some or all of the functions of the input module 210.

The storage module 250 is a device for storing data, and includes a main storage device and an auxiliary storage device, and stores an application program required for the functional operation of the radio wave generator 200. [ The storage module 250 may include a program area and a data area. Here, when activating each function according to a request of the user, the radio wave generator 200 executes the corresponding application programs under the control of the control module 290 to provide each function.

In particular, the storage module 250 according to the present invention may store RF fingerprint information, which is a characteristic of the radio wave generator 200 according to a combination of two or more radio signals, in the form of a fingerprint DB 251.

The communication module 270 transmits and receives data to and from the RF fingerprint management server 400 through the communication network 100 and receives signals for periodically or non-periodically transmitting two or more radio signals.

The communication module 270 includes RF transmitting means for up-converting and amplifying the frequency of the transmitted signal, RF receiving means for performing low-noise amplification on the received signal and down-converting the frequency, Data processing means, and the like. The communication module 270 may include at least one of a wireless communication module (not shown) and a wired communication module (not shown). When the radio wave generator 200 uses radio communication, the radio communication module is configured to transmit and receive data according to a radio communication method. The radio communication module may be any one of a radio network communication module, a wireless LAN communication module, And can transmit and receive data to and from the RF fingerprint management server 400 using the data.

The communication module 270 may include at least one communication module 270 for generating at least one radio signal and may be any communication module such as Bluetooth, Wi-Fi, RFID, NFC, It is possible to carry out the embodiment according to the present invention.

When the communication module 270 transmits and receives data to and from the RF fingerprint management server 400 through the communication network 100, at least one of the plurality of communication modules 270 may be a WLAN (Wireless LAN), a Wi-Fi Wi-Fi, WiBro, WiMAX, and HSDPA (High Speed Downlink Packet Access).

The control module 290 may be an operating system (OS) and a process device for driving each configuration.

The control module 290 controls the overall operation of the radio wave generator 200. The operation of the radio wave generator 200 that the control module 290 generally controls will be described with reference to FIG. Let's take a look.

Referring to FIG. 3, the radio wave generator 200 generates an RF fingerprint according to at least two combinations of a plurality of radio signals and stores the generated RF fingerprint in the storage module 250 (S101) Or transmits it to the RF fingerprint management server 400 or the access detecting device 300 as required (S103).

Then, in response to a request from the user, two or more radio signals among the plurality of radio signals are selected (S105), and a radio signal corresponding to the selected radio signal combination is transmitted (S109).

That is, if the user selects Bluetooth and an NFC signal as a radio signal to be transmitted, the radio wave generator 2000 transmits Bluetooth and an NFC signal.

The overall operation of the radio frequency generator 200 according to the embodiments of the present invention can be controlled and executed by the control module 290 of the radio wave generator 200.

The configuration and operation method of the radio wave generator 200 according to the present invention have been described above.

Hereinafter, the configuration and operation method of the approach detecting apparatus 300 according to the present invention will be described.

FIG. 4 is a view showing the main configuration of the approach detecting apparatus 300 according to the present invention, and FIGS. 5 to 6 are flowcharts for explaining an operation procedure of the approach detecting apparatus 300 according to each embodiment of the present invention .

4, the proximity sensing apparatus 300 according to the present invention may include at least one communication module 310, a storage module 330, an output module 350, and a control module 370 .

The communication module 310 performs the same function as the communication module 270 of the radio wave generator 200 and searches for two or more radio signals transmitted by the radio wave generator 200.

Here, the communication module 310 may include at least one communication module 310 for searching for and detecting at least one wireless signal. Any wireless communication method such as Bluetooth, Wi-Fi, RFID, NFC, And the number of communication modules 310 will be increased by the type of the wireless communication method.

When the communication module 310 transmits and receives data to and from the RF fingerprint management server 400 through the communication network 100, at least one of the plurality of communication modules 310 may be a WLAN (Wireless LAN), a Wi-Fi Wi-Fi, WiBro, WiMAX, and HSDPA (High Speed Downlink Packet Access).

At least one of the plurality of communication modules 310 of the access detecting device 300 transmits and receives data to and from the RF fingerprint management server 400 in cooperation with the communication network 100.

The storage module 330 performs the same function as the storage module 250 of the radio wave generator 200 and stores RF fingerprint information received from the radio wave generator 200 or the RF fingerprint management server 400 The distance value obtained by calculating the distance between the approach detecting device 300 and the radio wave generator 200 calculated based on the searched radio signal information and the stored RF fingerprint is stored in the form of a distance value DB (333).

Hereinafter, the distance value stored in the distance value DB is referred to as a second distance value.

The output module 350 is an apparatus that performs the same function as the output module 230 of the radio wave generator 200. The output module 350 includes the access detecting device 300 or the access detecting device 300 calculated by the RF fingerprint managing server 400 ) And the radio wave generator 200 to the user.

4, the access detecting device 300 includes an input module (not shown) of the access detecting device 300 performing the same function as the input module 210 of the radio wave generating device 200 can do.

In this case, the input module (not shown) of the access detecting device 300 receives a request from the user for detecting the degree of access to the radio wave generator 200, and transfers the received request to the control module 370.

Also, in order to provide various information about the degree of access to the user, a request signal regarding the access degree information desired by the user may be input.

The control module 370 is an apparatus for controlling the overall operation of the access detecting device 300. The overall operation of the access detecting device 300 that the control module 370 generally controls will be described with reference to FIGS. .

Referring to FIG. 5, the proximity detecting apparatus 300 may include an RF detecting unit 300 for detecting an RF signal according to a combination of two or more radio signals transmitted from the at least one radio wave generator 200 or the RF fingerprint management server 400, Receives and stores the print (S201), and searches for a radio signal around the access detecting device 300 (S203).

Thereafter, the two or more radio signal information searched for is compared with the previously stored RF fingerprints (S205), and based on the result, the radio wave information corresponding to at least one radio wave generator 200 within a certain radius from the approach detecting device 300 (S207). Then, it is determined which one of the radio wave generators 200 is responsible for transmitting two or more radio signals.

The degree of access between the access detecting device 300 and the radio wave generator 200 corresponding to the extracted user information is calculated based on the stored RF fingerprint and the detected radio signal information.

At this time, the index of the calculated approaching degree may include the distance between the approach detecting device 300 and the radio wave generating device 200 and the relative approaching speed. Based on the detected radio signal information and the stored RF fingerprint, And calculates a first distance value which is a calculated distance value, a second distance value (previously calculated distance value) stored in the distance value DB 333, and a time difference which is calculated by the first and second distance values The relative approach speed between the approach detecting apparatus 300 and the radio wave generating apparatus 200 can be calculated based on the calculated relative approach speed (S209).

Then, the calculated result is provided to the user of the access detecting device 300 through the output module 350 (S211).

On the other hand, the RF fingerprint management server 400 may be a main body that calculates the degree of approach between the access detecting device 300 and the radio wave generator 200, not the access detecting device 300. In this case, 6, the approach detecting apparatus 300 searches for a radio signal in the vicinity of the approach detecting apparatus 300 (S301), and transmits the detected two or more radio signals Information to the RF fingerprint management server 400 (S303).

Then, when the RF fingerprint management server 400 calculates the degree of approach between the approach detecting device 300 and the radio wave generating device 200, that is, the distance between the approach detecting device 300 and the radio wave generating device 200 and When the relative approach speed is calculated, it is received and provided to the user through the output module 350 (S305).

As described above, the entire operation process of the approach detecting apparatus 300 according to each embodiment of the present invention can be controlled and executed by the control module 390 of the approach detecting apparatus 300.

The configuration and operation method of the approach detecting apparatus 300 according to the present invention have been described above.

Hereinafter, the configuration and operation method of the RF fingerprint management server 400 according to the present invention will be described.

FIG. 7 is a view showing the main configuration of the RF fingerprint management server 400 according to the present invention. FIGS. 8 to 9 illustrate an operation process of the RF fingerprint management server 400 according to each embodiment of the present invention Fig.

Referring to FIG. 7, the RF fingerprint management server 400 according to the present invention may include a communication module 410, a storage module 430, and a control module 450.

The communication module 410 is for communicating with the radio wave generator 200 and the access detecting device 300. The communication network for performing the functions of the communication module 410 may be a WLAN (Wireless LAN), a Wi-Fi But it is not limited to the wireless communication methods such as Wibro, WiMAX and HSDPA. However, the present invention is not limited to this, and it is possible to use Ethernet, xDSL (ADSL, VDSL), Hybrid Fiber Coaxial Cable (HFC), Fiber To The Curb (FTTC), and Fiber To The Home (FTTH).

Particularly, in the present invention, the communication module 410 receives an RF fingerprint according to a combination of two or more radio signals from the radio wave generator 200 through the communication network 100, and the received RF fingerprint and access detection device It is possible to transmit the result of calculating the degree of approach between the radio wave generating device 300 and the radio wave generating device 200 to the approach detecting device 300.

The storage module 430 is a device for storing data, and includes a main storage device and an auxiliary storage device, and stores an application program required for functional operation of the RF fingerprint management server 400. [ The storage module 430 may include a program area and a data area. Here, when the RF fingerprint management server 400 activates each function according to a request from the user, the RF fingerprint management server 400 executes the corresponding application programs under the control of the control module 450 to provide each function.

In particular, in the present invention, the storage module 430 may store an RF fingerprint according to a combination of two or more radio signals received from the radio wave generator 200 in the form of a fingerprint DB 431, and the RF fingerprint management server 400 The distance value between the radio wave generator 200 and the approach detecting device 300 may be stored in the form of a distance value DB 433.

The distance value stored in the distance value DB 433 is referred to as a second distance value.

The control module 450 controls the overall operation of the RF fingerprint management server 400.

8 to 9, the function of the control module 450 for controlling the overall operation of the RF fingerprint management server 400 will be described.

8 to 9 illustrate different embodiments, and Fig. 8 shows an embodiment in which the approach detecting apparatus 300 calculates the degree of approach between the approach detecting apparatus 300 and the radio wave generating apparatus 200 FIG. 9 is for explaining an embodiment in which the RF fingerprint management server 400 calculates the access degree.

Referring to FIG. 8, the operation of the RF fingerprint management server 400 in the case where the approach detecting apparatus 300 calculates the access degree is performed by combining at least two radio signal combinations from at least one radio wave generator 200 And stores the received RF fingerprint (S401 to S403).

Thereafter, when an RF fingerprint transmission request is received from the approach detecting device 300 (S405), the RF fingerprint according to the transmission request is transmitted to the access detecting device 300 (S407).

Now, an embodiment in which the RF fingerprint management server 400 calculates the access degree between the access detecting device 300 and the radio wave generator 200 will be described with reference to FIG.

Referring to FIG. 9, the RF fingerprint management server 400 receives an RF fingerprint according to a combination of two or more radio signals from at least one radio wave generator 200 (S501), and stores the received RF fingerprint S503).

Thereafter, when the RF fingerprint management server 400 receives from the access detecting device 300 two or more pieces of radio signal information searched by the approach detecting device 300 (S505), the pre-stored RF fingerprint and the two (S507). Based on the comparison result, user information corresponding to at least one radio wave generator 200 within a predetermined radius is extracted from the approach detecting device 300 (S509).

That is, based on the comparison result, information about the holder holding at least one radio wave generator 200 is extracted.

Then, based on the received radio signal information and the stored RF fingerprint, the degree of access between the access detecting device 300 and at least one radio wave generator 200 corresponding to the extracted user information is calculated. At this time, The distance between the approach detecting device 300 and the radio wave generating device 200 and the relative approaching speed of the radio wave generating device 200 toward or away from the approach detecting device 300 may be included.

At this time, the distance between the access detecting device 300 and the radio wave generator 200 is calculated based on the received radio signal information and the previously stored RF fingerprint, and the calculated distance value is referred to as a first distance value.

Also, the relative approach speed may be calculated based on the first distance value, the second distance value stored in the distance value DB 433, and the calculated time difference between the first and second distance values, so that the at least one radio wave generator 200 It is possible to calculate the approaching speed of approaching the approach detecting device 300.

As described above, the first distance value is a distance value calculated by the RF fingerprint management server 400, and the second distance value is calculated by the RF fingerprint management server 400 and stored in the distance value DB 433, Quot; is a distance value stored in the memory.

In addition, as described above, the overall operation of the RF fingerprint management server 400 is controlled and performed by the control module 450 of the RF fingerprint management server 400. [

The configuration and operation method of the RF fingerprint management server 400 according to the present invention have been described above.

10 is a diagram illustrating an operating environment of an apparatus for providing a location inquiry method in a location inquiry service system according to an embodiment of the present invention.

Figure 10 and the following discussion are intended to provide a brief, general description of a suitable computing environment in which the invention may be implemented.

Although not required, the invention may be described in connection with computer-executable instructions, such as program modules, being executed by a computer system. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The computer executable instructions, associated data structures, and program modules illustrate examples of program code means for carrying out the acts of the invention disclosed herein.

10, an exemplary computing system embodying the present invention includes a processing unit 11, a system memory 12, and various system components including the system memory 12 connected to the processing unit 11 And a system bus 10 for communicating with the system.

The processing unit 11 may execute computer-executable instructions designed to implement the features of the present invention.

The system bus 10 may be any of several types of bus structures including a local bus, a peripheral bus, and a memory bus or memory controller using any of a variety of bus architectures. The system memory 12 includes a ROM (Read Only Memory) 12a and a RAM (Random Access Memory) 12b. A basic input / output system (BIOS) 13a, containing the basic routines that help to transfer information between components within a computing system, such as during start-up, may generally be stored in ROM 12a.

The computing system may include storage means, for example, a hard disk drive 15 that reads information from, or writes information to, the hard disk, reads information from, or writes information to, And an optical disk drive 17 that reads information from, or writes information to, an optical disk such as, for example, a CD-ROM or other optical media .

The hard disk drive 15, the magnetic disk drive 16 and the optical disk drive 17 are connected by a hard disk drive interface 18, a magnetic disk drive-interface 19 and an optical drive interface 20, respectively, And is connected to the bus 10.

Further, the computing system may further include an external memory 21 as a storage means. The external memory 21 may be connected to the system bus 10 through an input /

The above-described drives and their associated computer-readable media readable and writable by the drives provide non-volatile storage of computer-executable instructions, data structures, program modules and other data.

The exemplary environment described herein illustrates a hard disk 15, magnetic disk 16 and optical disk 17, but may also include magnetic cassettes, flash memory cards, DVDs, Bernoulli cartridges, RAMs Other types of computer readable media for storing data, including ROM, ROM, etc., may be used.

Includes one or more program modules including an operating system 13b, one or more application programs 13c, other program modules 13d, and program data 13c that are loaded and executed by the processing unit 11 The program code means may be stored in the hard disk 15, the magnetic disk 16, the optical disk 17, the ROM 12a or the RAM 12b.

In addition, the computing system may receive commands and information from a user through other input devices 22 such as a keyboard, a pointing device, a microphone, a joystick, a game pad, a scanner,

These input devices 22 may be connected to the processing unit 11 via an input / output interface 24 connected to the system bus 10. The input / output interface 24 may be, for example, a serial interface such as a serial port interface, a PS / 2 interface, a parallel port interface, a USB interface, an Institute of Electrical and Electronics Engineers (IEEE) 1394 interface (i.e., FireWire interface) Any of a variety of different interfaces can be represented logically, or even combinations of different interfaces can be represented logically.

In addition, the computing system to which the present invention is applied may further include a display device 26 such as a monitor or LCD or an audio device 27 such as a speaker or microphone, which may be connected via a video / audio interface 25 And is connected to the system bus 10. For example, other peripheral output devices (not shown), such as speakers and printers, may also be connected to the computer system.

The video / audio interface unit 25 may include a high definition multimedia interface (HDMI), a graphics device interface (GDI), or the like.

Further, the computing system embodying the invention is connectable to a network such as, for example, an office-wide or enterprise-wide computer network, a home network, an intranet, and / or the Internet. The computer system may exchange data with external sources such as, for example, a remote computer system, a remote application, and / or a remote database.

To this end, a computing system to which the present invention is applied includes a network interface 28 for receiving data from an external source and / or for transmitting data to an external source.

In the present invention, such a computing system is capable of transmitting and receiving information with a device located remotely via the network interface 28. For example, if the computing system refers to the radio wave generating device 200 or the access detecting device 300, information can be exchanged with the RF fingerprint management server 400 through the network interface 28. [ On the other hand, when the computing system refers to the RF fingerprint management server 400, information can be transmitted and received with the radio wave generator 200 or the access detecting device 300 via the network interface 28.

The network interface 28 may be represented by a logical combination of one or more software and / or hardware modules, such as, for example, a network interface card and a corresponding Network Driver Interface Specification ("NDIS") stack.

Likewise, the computer system receives data from an external source via the input / output interface 24 or transmits data to an external source. Output interface 24 may be coupled to a modem 23 (e.g., a standard modem, a cable modem, or a digital subscriber line (" DSL ") modem) Lt; / RTI > and / or transmit data to an external source.

Although FIG. 10 shows an operating environment suitable for the present invention, the principles of the present invention may be employed with any system that can implement the principles of the present invention, with appropriate modifications if necessary. The environment shown in Figure 10 is merely illustrative and does not represent a small portion of the very diverse environment in which the principles of the present invention may be implemented.

In addition, various information generated when determining whether or not to enter the store of the present invention can be stored and accessed in any computer-readable medium related to the computing system. For example, a portion of these program modules and a portion of the associated program data may be stored in the system memory 12, such as in the operating system 13b, the application program 13c, the program module 13d, and / (13e).

Further, when a mass storage device such as a hard disk is connected to the computing system, such program modules and related program data may be stored in the mass storage device. In a networked environment, program modules associated with the present invention, or portions thereof, may be stored in a remote computer system connected via a modem 23 or network interface 25 of the input / output interface 24. The execution of such a module can be performed in a distributed environment as described above.

As described above, the present specification contains details of a number of specific implementations, but they should not be construed as being limitations on the scope of any invention or claimability, but rather on the particular embodiment of a particular invention But should be understood as an explanation of the features. Certain features described herein in the context of separate embodiments may be implemented in combination in a single embodiment.

Conversely, various features described in the context of a single embodiment may also be implemented in multiple embodiments, either individually or in any suitable subcombination. Further, although the features may operate in a particular combination and may be initially described as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, Or a variant of a subcombination.

Likewise, although the operations are depicted in the drawings in a particular order, it should be understood that such operations must be performed in that particular order or sequential order shown to achieve the desired result, or that all illustrated operations should be performed.

In certain cases, multitasking and parallel processing may be advantageous. Also, the separation of the various system components of the above-described embodiments should not be understood as requiring such separation in all embodiments, and the described program components and systems will generally be integrated together into a single software product or packaged into multiple software products It should be understood.

Certain embodiments of the subject matter described herein have been described. Other embodiments are within the scope of the following claims. For example, the operations recited in the claims may be performed in a different order and still achieve desirable results.

By way of example, the process illustrated in the accompanying drawings does not necessarily require that particular illustrated or sequential order to obtain the desired results. In certain implementations, multitasking and parallel processing may be advantageous.

The description sets forth the best modes of the present invention and provides examples for the purpose of illustrating the invention and enabling a person skilled in the art to make and use the invention. The written description is not intended to limit the invention to the specific terminology presented.

Thus, while the present invention has been described in detail with reference to the above examples, those skilled in the art will recognize that modifications, changes, and modifications can be made thereto without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited by the described embodiments but should be defined by the claims.

The present invention relates to an RF fingerprint based user access detection method and apparatus, and more particularly, to a method and apparatus for generating and storing an RF fingerprint of a radio wave generator that generates two or more radio signals, And comparing the radio signal information measured at the current location with the radio signal information measured at the current location to calculate the degree of access to the access detecting device of the user having the radio wave generating device.

According to the present invention, the access detecting device compares at least two pieces of radio signal information searched for with the previously stored RF fingerprints, extracts user information corresponding to at least one radio wave generating device within a certain radius, By calculating the degree of access between the radio wave generating device and the access detecting device possessed by the user on the basis of the previously stored RF fingerprint, it is possible to obtain an excellent effect by preventing RFI fingerprint, preventing the disappearance of the elderly, have.

Particularly, when calculating the approaching degree, the distance and the approaching speed between the radio wave generating device and the approach detecting device are calculated, so that the user of the approach detecting device is able to know how far the object is protected and how far It is possible to efficiently protect the protection target.

Therefore, the present invention can contribute to the development of the fingerprint industry through the above-described fingerprint-based user access detection method, and it is industrially applicable because it is not only possible to market or operate but also can be practically and practically carried out.

100: communication network 200: radio wave generator 300: access detector
400: RF fingerprint management server

Claims (10)

The access detecting device searching for at least two radio signals transmitted by at least one radio wave generator;
Comparing the searched two or more pieces of radio signal information with pre-stored RF (Radio Frequency) fingerprints;
Extracting user information corresponding to the at least one radio wave generating device within a predetermined radius from the access detecting device based on the comparison result; And
Calculating an access level between the access detecting device and the at least one radio wave generating device corresponding to the extracted user information based on the radio signal information and the RF fingerprint;
And detecting the user access. 2. The method of claim 1, wherein the calculating step
Wherein the first distance value is a distance between the at least one radio wave generator and the access detecting device based on the radio signal information and the RF fingerprint. 3. The method of claim 2, wherein the calculating step
A second distance value that is a distance value between the radio wave generator and the approach detecting device calculated before the calculation of the first distance value, the first distance value, and the first and second distance values, And the access speed of one radio wave generator is calculated. 2. The method of claim 1,
Receiving and storing an RF fingerprint according to a combination of two or more radio signals transmitted from the radio wave generator, from the at least one radio wave generator or the RF fingerprint management server;
Further comprising the steps of: A computer-readable recording medium on which a program for executing the method according to any one of claims 1 to 4 is recorded. A computer program stored in a computer-readable recording medium, the computer program being embodied to execute the method recited in any one of claims 1 to 4. At least one communication module for sensing one or more wireless signals around an access detecting device;
A storage module for storing an RF fingerprint generated by at least one radio wave generator; And
Wherein the wireless communication device searches for two or more wireless signals transmitted from at least one radio wave generator through the communication module and compares the searched radio signal information and the previously stored RF fingerprint with each other within a predetermined radius Extracting user information corresponding to the at least one radio wave generator and determining an access degree between the at least one radio wave generator and the access detecting device corresponding to the extracted user information based on the radio signal information and the RF fingerprint A control module for calculating a control signal;
Lt; / RTI > 8. The apparatus of claim 7, wherein the control module
And calculates a first distance value that is a distance between the at least one radio wave generator and the access detecting device corresponding to the user information based on the radio signal information and the RF fingerprint. 9. The apparatus of claim 8, wherein the storage module
Further storing a distance value between the radio wave generating device and the approach detecting device,
The control module
A second distance value that is a distance value between the radio wave generator and the approach detecting device calculated before the calculation of the first distance value, the first distance value, and the first and second distance values, And the approaching speed of one radio wave generator is calculated. 8. The apparatus of claim 7, wherein the communication module
And transmits and receives data to and from the RF fingerprint management server and the at least one radio wave generator,
The control module
When receiving an RF fingerprint according to a combination of two or more radio signals transmitted from the at least one radio wave generator through the communication module from the at least one radio wave generator or the RF fingerprint management server, And stores it in the storage module.

Images