KR20130055715A - Smart phone recognition system using an audible frequency and smart phone recognition method using the same - Google Patents

Abstract

PURPOSE: A smartphone recognition system based on audibility frequencies and a smartphone recognition method using the same are provided to recognize a target smartphone within a predetermined distance by using a sound wave. CONSTITUTION: One or more clients(200) generate an audibility frequency by using a key value or a synchronization value for recognizing an opponent. One or more clients recognize the audibility frequency generated by the opponent. Each of the clients recognizes a key value or a synchronization key value by using the audibility frequency transmitted by the opponent. A server(100) receives an unique ID(Identification) and a key value from the client. The server transmits the client information to the client. [Reference numerals] (160) Matching seeker; (170) Client interlinker; (180) Database; (210) Audible frequency generator; (220) Audible frequency recognizer; (230) Arbitrary number generator; (240) Server interlinker; (250) Protocol module; (AA) Communication network

Description

Smart phone recognition system using an audible frequency and smart phone recognition method using the same}

The present invention relates to an audio frequency based smart phone recognition system and a smart phone recognition method using the same. More specifically, the present invention relates to an audible frequency-based smart phone recognition system for recognizing a target smart phone within a predetermined distance to communicate among a plurality of smart phones located in a short distance using sound waves, and a smart phone recognition method using the same.

In general, RF communication methods such as infrared communication (IrDA) and Bluetooth (Bluetooth) have been proposed and utilized as short-range communication between mobile terminals. However, these methods are extremely hardware dependent methods and can be said to communicate only when each device is separately provided in the device.

Almost all smartphones that are currently commercialized and widely used do not have a device for infrared communication. In the case of Bluetooth, the range of application is limited according to the policy of the terminal manufacturer.

If the near field communication by the infrared communication and Bluetooth is not possible, the smart phone may be able to communicate through a communication network such as WiFi or 3G network.

However, while terminals such as PCs mainly use a standardized method for recognition of communication targets in wired networks and Wi-Fi networks, smartphones that are subject to communication without a mobile carrier are used. Recognizing a phone is not an easy reality.

On the other hand, almost all smartphones currently on the market have a built-in sound recognition unit such as a microphone and a sound wave generation unit such as a speaker in common, and it is possible to recognize other smartphones by utilizing them without adding a separate device to the smartphone. Do. Focusing on the fact that the smartphone is basically equipped with a voice communication function, it may be a valid alternative to recognize the partner smartphone to be communicated using sound waves.

An embodiment of the present invention provides an audio frequency-based smart phone recognition system for recognizing a target smart phone within a certain distance to communicate among a plurality of smart phones located in the near by using sound waves and a smart phone recognition method using the same I would like to.

According to an aspect of the present invention, in order to recognize the other party to be recognized to generate an audible frequency using a key value or a think key value, the other party recognizes the audible frequency generated by the other party and uses the audible frequency delivered by the other party One or more clients recognizing the passed key value or think key value; And a server configured to receive a unique ID and a key value from the client and transmit information of the counterpart client to the client.

At this time, the client includes a random number generator for generating a predetermined random number; A protocol module for receiving the key value which is a random number from the random number generator or generating a think key value; An audible frequency generator which receives a key value or a sync key value from the protocol module and generates sound waves of a unit region audible frequency assigned to the number; An audible frequency recognizer for recognizing sound waves of an audible frequency generated by a counterpart client and transferring a key value or a think key value to which the audible frequency is assigned to the protocol module; And a server linking unit which transmits a unique ID and a key value to the server and receives information of a counterpart client from the server.

The server linkage unit may further transmit key generation time or GPS coordinate information to the server.

Meanwhile, the key value may be two.

The server may include: a client interlocker receiving a unique ID and a key value from the client and delivering the retrieved client information of the counterpart to the client; It may include a database for storing a unique ID, a key value and client information, and a matching searcher for searching the database using the key value transmitted from the client and delivering the client information of the other party to the client interlocker.

Meanwhile, after recognizing the think key of the other party, the client may stop generation of an audio frequency corresponding to the first key that is being generated and generate a second key.

In this case, the client may stop the generation of an audio frequency corresponding to the generated sink key after recognizing the second key of the counterpart.

According to another aspect of the present invention, in order to recognize the other party to be recognized, the audible frequency is generated using a key value or a think key value, the other party recognizes the audible frequency generated by the other party and uses the audible frequency delivered by the other party. An audio frequency-based smart phone recognition system may be provided that recognizes the transmitted key value or think key value.

According to another aspect of the invention, (a) a client generating a first key; (b) the client generating sound waves of an audible frequency corresponding to the first key; (c) the client recognizing the audible frequency generated by the counterpart client and recognizing the first key of the counterpart; (d) determining whether a think key can be generated using the recognized first key; (e) generating a think key using the recognized first key when the think key is generated; (f) the client generating sound waves of an audible frequency corresponding to the thinkkey; (g) determining whether the client recognizes the think key delivered by the other client; (h) stopping the generation of an audible frequency corresponding to the first key that was being generated when the other party's think key was recognized; (i) the client generating a second key; (j) the client generating sound waves of an audible frequency corresponding to a second key; (k) the client recognizing the audible frequency corresponding to the second key generated by the client of the counterpart; and (l) the client determining whether the generation of the audible frequency corresponding to the counterpart's sink key is stopped. A smart phone recognition method may be provided.

In this case, the method may further include transmitting, by the client, a unique ID, a recognized first key, and a second key value to a server, and receiving information of a counterpart client from the server.

The audible frequency-based smart phone recognition system and the smart phone recognition method using the same according to an embodiment of the present invention can stably recognize a communication target within an acceptable distance using sound waves in a conventional smart phone without providing an additional device. have.

In addition, accurate recognition of the communication target, such as interference by other sound waves or reduction of an error rate due to an manipulated signal, can be practically used in the configuration of a separate communication channel.

1 is an overall configuration diagram of an audio frequency based smart phone recognition system according to an embodiment of the present invention.
2 is a block diagram of an audible frequency used in the present invention.
3 is a flowchart illustrating a smartphone recognition method using an audible frequency-based smartphone recognition system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, configurations and operations of embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall configuration diagram of an audio frequency based smart phone recognition system according to an embodiment of the present invention.

Referring to FIG. 1, the audible frequency-based smartphone recognition system 10 according to an embodiment of the present invention may be composed of a server 100 and one or more clients 200.

The server 100 receives a key value from the client 200 and delivers information of the counterpart client 200 to the client. At this time, the server may further receive the unique ID and GPS coordinate information from the client.

The server 100 may include a client interlocker 170, a matching searcher 160, and a database 180.

The client interlocker 170 receives a unique ID and a key value from the client and delivers the retrieved counterpart's client information to the client.

The matching searcher 160 may receive a key value from the client interlocker 170, search the database 180 using the key value, and deliver the client information of the counterpart to the client interlocker 170.

The database 180 may store unique ID and client information. In this case, the client information may include a mobile phone number.

The database 180 may use an Oracle, MySQL, MSSQL and memory database. In addition, in the audio frequency-based smart phone recognition system 10 according to an embodiment of the present invention, the database is located inside the server, but may be located outside the server to exchange data through a communication network.

When the client of the audible frequency based smart phone recognition system according to an embodiment of the present invention is installed in a smart phone, a unique ID is issued, the unique ID and the mobile phone number may be stored in the database 180 in advance.

The database 180 may include a table for storing basic information such as a client's unique ID, a mobile phone number, and other user information, and a table for storing temporary data to be used when recognizing a partner.

The server 100 stores in the database 180 a unique ID, a key value such as n _{S , A} , n _A2 , n _{S , B} , n _B2 , key generation time, and GPS coordinate information transmitted from the clients 200. .

Referring to FIG. 1, the server 100 first searches the database 180 for a unique ID of a client 200 having the same key value through the matching searcher 160 based on values stored in the database 180. If two identical key values are found, the search is terminated and the client information of the other party can be obtained from the database 180 through the unique ID.

If the same key value is three or more, the client information of the counterpart may be obtained using the two key values generated in the adjacent time zone by comparing the key generation times. If three or more keys are close to the time zone, GPS coordinate information is used to select the target client paired with the two key values in the nearest radius. The counterpart client information selected through this process may be transmitted to each client through the client interlocker.

The client 200 generates an audible frequency using a key value to recognize the client 200 of the counterpart to be recognized, recognizes the audible frequency generated by the counterpart, and transfers the recognized key value to the server 100. Then, the server 100 receives the information of the counterpart client 200. Client 200 of the audible frequency-based smart phone recognition system according to an embodiment of the present invention can be installed and used in a smart phone.

When operating the audible frequency-based smart phone recognition system 10 according to an embodiment of the present invention, the client 200 generates a sound wave of an audible frequency to be a key (key) and at the same time of the audio frequency of the other party You will go through the process of recognizing sound waves. At this time, each client 200 transmits a key value reacting with each other through a communication network, and receives information of the counterpart client 200 from the server 100 to recognize the client 200 of the counterpart.

2 is a configuration diagram of an audible frequency used in the present invention, by dividing an audible frequency region between 18,000 Hz and 20,000 Hz into 50 regions in units of 40 Hz and assigning a unique number. Each of these areas can be defined as a 'unit area' and this unique number can be defined as a 'unit area unique number'.

3 is a detailed configuration diagram of a client of an audio frequency-based smart phone recognition system according to an embodiment of the present invention.

2 and 3, the client of the audible frequency-based smart phone recognition system according to an embodiment of the present invention is a sound wave of an audible frequency that is a key (key) in order for the smart phone to recognize the other smartphone in close range At the same time, and undergoes a process of recognizing sound waves of an audible frequency that is the key of the other party.

In order to perform this process, the client 200 of the audible frequency-based smart phone recognition system 10 according to an embodiment of the present invention, referring to Figure 3, the random number generator 230, the server interlocking unit 240 , A protocol module 250, an audible frequency generator 210, and an audible frequency recognizer 220 may be included.

The random number generator 230 may generate a random number from 1 to 50 and provide it to the protocol module 250, as shown in FIG. 2, at the request of the protocol module 250.

The server interlocking unit 240 is a module interworking with the server 100, and interworking with the server 100 according to the request of the protocol module 250, and has a unique ID, n _{S , A} , n _{A2 for the} server 100. The key value, key generation time and GPS coordinate information such as, n _{S , B} , n _B2 are transmitted, and the information of the counterpart client 200 is received from the server 100.

The protocol module 250 receives a key value that is a random number from the random number generator 230 or generates a sync key value so that the client 200 recognizes each other as 1: 1. To pass).

When the protocol module 250 inputs a key value or a sink key value that is a unit area unique number, the audible frequency generator 210 may generate sound waves of the unit area audio frequency assigned to the number through the sound wave generator. In this case, the sound wave generator may use a speaker.

The audible frequency recognizer 220 may recognize a sound wave of an audible frequency generated through the sound wave generator of the counterpart client 200 through the sound wave recognizer to transmit a key value or a think key value to which the audible frequency is assigned to the protocol module 250. have. In this case, the sound wave recognition unit may be a microphone.

Next, a smart phone recognition method using an audible frequency-based smart phone recognition system according to an embodiment of the present invention will be described.

3 is a flowchart illustrating a smartphone recognition method using an audible frequency-based smartphone recognition system according to an embodiment of the present invention. 3 is a flowchart illustrating a process of recognizing a counterpart client by the client described above.

Referring to FIG. 3, the smart phone recognition method using the audible frequency-based smart phone recognition system according to an embodiment of the present invention generates random numbers n _A1 and n _{B1 of} which the client has a first key. (S110).

Next, the client generates sound waves f _A1 and f _B1 of the audible frequency corresponding to the 'first key', respectively (S120).

Thereafter, the client recognizes the other party's f _A1 and f _B1 , which are the respective audible frequencies generated by the other client, and recognizes the first key of the other party (S130). That is, client A recognizes f _B1 and client B recognizes f _A1 . At this time, the client A and B are close to each other, so that the other party's sound wave only recognizes more than a certain signal strength and does not respond to external noise.

Subsequently, it is determined whether a synch key can be generated through the recognized n _A1 and n _B1 . If only sound waves of one audible frequency are generated by generating sound waves of the same audible frequency, they are regarded as not to be recognized and are generated again until another person recognizes another random 'first key'. Sound waves of the two audible frequencies and the other party are recognized (S140).

Next, based on the recognized n _A1 and n _B1 , the respective sync keys n _{S , A} , n _{S , and B} are generated (S150). In order for each client to generate the Synch keys n _{S , A} and n _{S , B} , then if (n _A1 <n _B1 ) then n _{S , A} = (n _A1 + n _B1 ) / 2 ), And n _{S , B} = (n _A1 + n _B1 ) / 2 +1 with the Synch key.

If (n _A1 > = n _B1 ) then n _{S , B} = (n _A1 + n _B1 ) / 2 is generated with Synch key, and n _{S , A} = (n _A1 + n _B1 ) / 2 +1 It can be generated by the Synch key.

Thereafter, the client generates sound waves f _{S, A} , f _{S , and B} , respectively _, of an audible frequency corresponding to the think keys n _{S , A} , n _{S , B} (S160).

Next, it is determined whether the other party's think key is recognized while waiting for the other party's Synch key for a predetermined time (S170). It is possible to determine whether the client recognizes the other party's think key by recognizing the other party's audible frequencies f _{S , A} , f _{S and B.} That is, the client A recognizes f _{S and B} , and the client B recognizes f _{S and A} to confirm that the other party is ready to recognize each other. If the other party's Synch key is not recognized for a certain time, the process returns to the previous step (S110).

At this time, when the Synch step is completed, the generation of the random numbers n _A1 and n _{B1 which} are the 'key' generated, may be stopped.

Thereafter, the client stops generation of the 'first key', and generates random numbers n _A2 and n _B2 that are 'second key' (S180).

Next, the client generates sound waves f _A2 and f _B2 of an audible frequency corresponding to the provided 'second key' (S190).

Subsequently, the client may recognize f _A2 and f _B2 , which are audible frequencies generated by the client of the other party, respectively. That is, the client A recognizes f _B2 , and the client B recognizes f _A2 (S200).

Next, it is determined whether the other party's generation of the think key is stopped. If the other party's Synch key is not stopped, it does not proceed to the next step and continues to generate the 'second key' that is being generated (S210).

When the smartphones A and B recognize the other party's f _A2 and f _B2 normally, their Synch keys, that is, the smartphone A stops f _{S and A} and the smartphone B stops f _{S and B.} can do. This means that the smartphones A and B correctly received the 'second key' of the other party.

Finally, the client transmits the unique ID, the recognized key value, the key generation time and the GPS coordinate information to the server, and receives the information of the counterpart client from the server (S220).

In other words, Client A and Client B each send a unique ID, a recognized key value such as n _A1 , n _{S , A} , n _A2 , n _B1 , n _{S , B} , n _B2 , key generation time, and GPS coordinate information to the server. The other client with the same key can recognize each other. If multiple identical keys are found on the server, they can be distinguished by key generation time and GPS information.

On the other hand, as described above, the reason why the client generates a plurality of keys is to distinguish the signal of the other client from the external noise signal. In particular, the synch key generated by the client may play an important role in distinguishing the client signal of the other party from the noise signal.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. The embodiments described above are therefore to be considered in all respects as illustrative and not restrictive.

100: server 160: matching explorer
170: client interlocker 180: database
200: client 210: audible frequency generator
220: Audible frequency recognizer 230: Random number generator
240: server interlocker 250: protocol module

Claims (10)

As a smartphone recognition system using an audible frequency,
In order to recognize the other party to be recognized, audible frequencies are generated using key values or think key values, and the recognized or audible frequencies generated by the other party are recognized, and the key or sink key values transmitted by the other party using the audible frequencies delivered by the other party. One or more clients to recognize; And
And a server for receiving a unique ID and a key value from the client and transmitting information of a counterpart client to the client. The method of claim 1,
The client includes:
A random number generator for generating a predetermined random number;
A protocol module for receiving the key value which is a random number from the random number generator or generating a think key value;
An audible frequency generator which receives a key value or a sync key value from the protocol module and generates sound waves of a unit region audible frequency assigned to the number;
An audible frequency recognizer for recognizing sound waves of an audible frequency generated by a counterpart client and transferring a key value or a think key value to which the audible frequency is assigned to the protocol module; And
And a server linkage unit for transmitting a unique ID and a key value to the server and receiving information of a counterpart client from the server. The method of claim 1,
The server interworking unit is audible frequency-based smart phone recognition system, characterized in that further transmitting the key generation time or GPS coordinate information to the server. The method of claim 2,
Audible frequency-based smart phone recognition system, characterized in that the two key values. The method of claim 1,
The server comprises:
A client interlocker receiving a unique ID and a key value from the client and delivering the retrieved client information of the counterpart to the client;
A database that stores unique IDs, key values, and client information; and
And a matching searcher for searching the database using the key value transmitted from the client and transmitting the client information of the counterpart to the client interlocker. The method of claim 1,
The client includes:
The audible frequency-based smartphone recognition system, characterized in that after the recognition of the other party's think key stops the generation of the audio frequency corresponding to the generated first key and generates a second key. The method of claim 1,
The client includes:
An audible frequency-based smartphone recognition system, characterized in that the generation of an audible frequency corresponding to the generated think key after stopping the second key of the other party. As a smartphone recognition system using an audible frequency,
In order to recognize the other party to be recognized, audible frequencies are generated by using a key value or a think key value. Audible frequency based smartphone recognition system, characterized in that for recognizing. A method for recognizing a smart phone using the audible frequency-based smart phone recognition system according to any one of claims 1 to 8,
(a) the client generating a first key;
(b) the client generating sound waves of an audible frequency corresponding to the first key;
(c) the client recognizing the audible frequency generated by the counterpart client and recognizing the first key of the counterpart;
(d) determining whether a think key can be generated using the recognized first key;
(e) generating a think key using the recognized first key when the think key is generated;
(f) the client generating sound waves of an audible frequency corresponding to the thinkkey;
(g) determining whether the client recognizes the think key delivered by the other client;
(h) stopping the generation of an audible frequency corresponding to the first key that was being generated when the other party's think key was recognized;
(i) the client generating a second key;
(j) the client generating sound waves of an audible frequency corresponding to a second key;
(k) the client recognizing an audible frequency corresponding to the second key generated by the client of the other party; and
(l) a method of recognizing a smartphone, wherein the client determines whether generation of an audible frequency corresponding to a counterpart's think key is stopped. The method of claim 9,
(m) the client further transmitting a unique ID, a recognized first key and a second key value to a server, and receiving information of a counterpart client from the server.

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