KR20160019296A - System for detecting loss of mobile phone - Google Patents

System for detecting loss of mobile phone Download PDF

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Publication number
KR20160019296A
KR20160019296A KR1020140103887A KR20140103887A KR20160019296A KR 20160019296 A KR20160019296 A KR 20160019296A KR 1020140103887 A KR1020140103887 A KR 1020140103887A KR 20140103887 A KR20140103887 A KR 20140103887A KR 20160019296 A KR20160019296 A KR 20160019296A
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South Korea
Prior art keywords
signal
unit
information
mobile phone
terminal
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KR1020140103887A
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Korean (ko)
Inventor
이찬석
박춘희
박병태
김기훈
Original Assignee
김기훈
박병태
이찬석
박춘희
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Application filed by 김기훈, 박병태, 이찬석, 박춘희 filed Critical 김기훈
Priority to KR1020140103887A priority Critical patent/KR20160019296A/en
Priority to PCT/KR2015/008403 priority patent/WO2016024795A2/en
Publication of KR20160019296A publication Critical patent/KR20160019296A/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/24—Reminder alarms, e.g. anti-loss alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention relates to a mobile phone loss prevention system, including a wireless transmission terminal connected to a wireless communications unit, a mobile phone terminal, and an external management server. The mobile phone loss prevention system prevents a mobile phone from being lost by using sensed time information. The mobile phone terminal includes: a first signal receiving unit receiving a search signal from the wireless transmission terminal; a reception determining unit determining whether or not the search signal is received; a time information calculating unit calculating a time when the search signal is not received; a signal outputting unit outputting a preset voice signal; a loss notifying unit transmitting a loss situation signal to a pre-designated contact number; an information transmitting unit transmitting pre-stored loss notification information to the external management server; a second signal receiving unit receiving a loss notification signal included in the loss notification information from the external management server; a loss notification signal outputting unit outputting the received loss notification signal; and a control unit controlling the operations of each of the components.

Description

SYSTEM FOR DETECTING LOSS OF MOBILE PHONE

An embodiment of the present invention relates to a system for preventing loss of a mobile phone by using a detection result of whether or not a signal is received between a mobile phone and a wireless transmission terminal.

2. Description of the Related Art Recently, various types of portable terminals have been released.

When the portable terminal is miniaturized, the volume of the portable terminal is reduced, which is convenient for the user to carry, but the portable terminal is easily lost.

Loss of a portable terminal is often caused when a user moves to another place while a portable terminal is placed in a specific place and when a portable terminal put in a pocket is unwittingly pulled out of the pocket.

Conventionally, in order to search for a lost portable terminal, the user has to worry about which place is lost while looking back on the travel route by himself, and the lost portable terminal's recovery rate becomes 30% There was a problem that it failed.

It is true that the prices of portable terminals have been lowered compared to the past, but the 4G, LTE and LTE-A terminals have recently been sold at a very high price. Thus, the loss of such portable terminals has caused considerable economic damage .

Open Patent Publication No. 10-2010-0104480 'Mobile terminal, communication system and loss mode management method using the same' Patent Publication No. 10-2012-005848 'Device for preventing loss of mobile phone'

According to an embodiment of the present invention, the present position information of a mobile phone or preset loss notification information is transmitted to a predetermined contact or server device according to a detection result of whether or not a signal is received between a mobile phone and a wireless transmitting terminal held by a user, And outputs the lost notification information, thereby preventing the loss of the mobile phone.

A system for preventing the loss of a cellular phone according to an embodiment of the present invention includes a wireless transmitting terminal connected to a wireless communication network, a cellular phone terminal, and an external management server. The cellular phone terminal includes time information in which a search signal from the wireless transmitting terminal is not received Wherein the mobile terminal comprises: a first signal receiver for receiving a search signal from the wireless transmitting terminal; A reception judging unit for judging whether or not the search signal is received; A time information calculation unit for calculating a time when the search signal is not received; A signal output unit for outputting a predetermined voice signal when the calculated time is the first time or longer; A loss notification unit for transmitting a loss situation signal to a predetermined contact when the calculated time is not less than a second time which is longer than the first time; An information transmission unit for transmitting the preset loss notification information to the external management server when the calculated time is a third time greater than the second time; A second signal receiving unit for receiving a loss notification signal included in the loss notification information from the external management server; A loss notification signal output unit for outputting the received loss notification signal; And a control unit provided with a loss prevention application and controlling the operation of each of the components by executing the loss prevention application.

The loss notification signal may include a screen color change signal for changing the color of the screen background of the mobile phone terminal, and a voice message signal including the avatar.

The lost notification signal output unit may include a screen color changing unit for changing a color of the screen background of the mobile phone terminal; And an avatar output unit for outputting a voice message including an avatar.

The mobile terminal includes a location information collection unit for collecting location information of the mobile phone terminal using GPS information or surrounding environment information; And a storage unit for mapping the location information to the surrounding environment information to construct a database.

Wherein the control unit causes the position information collecting unit to position the cellular phone terminal using the GPS information or the ambient environment information, and when the position is not determined by the GPS information, The location information of the mobile phone terminal obtained from the external management server can be transmitted to the external management server.

The mobile phone terminal may further include a communication unit for transmitting and receiving data with the external management server, and the external management server may store and manage the map information including the location information of the mobile phone terminal.

The environment information may be information obtained from at least one of an acceleration sensor, a geomagnetism sensor, a gyro sensor, a gravity sensor, an altitude sensor, and a radio signal strength with a base station installed in the mobile phone terminal.

Wherein the position information collecting unit defines the last position information by the GPS information as initial position information when the signal change amount of the geomagnetic sensor is larger than the reference signal variation amount and determines the speed of the terminal obtained from the acceleration sensor, Acquires current position information relative to the initial position information using the moving azimuth angle, and maps and maps the obtained position information to the surrounding environment information to construct and store the database.

The loss notification unit may transmit the loss status signal through at least one of a text sending function, a telephone dialing function, and a push notification service.

Wherein the wireless transmitting terminal comprises: a signal transmitting unit transmitting a search signal to the cellular phone terminal; And an alarm generating unit for generating an alarm when transmission / reception of a search signal with respect to the mobile phone terminal can not be performed.

According to the cell phone loss prevention system according to the embodiment of the present invention, when the signal reception between the wireless transmission terminal connected to the local area network and the cellular phone terminal is detected, and when the detection result signal is not received, And transmits the lost status signal to the emergency contact, or transmits the preset lost notification information to the external management server. If it is determined that the mobile terminal is lost, the screen image color included in the lost notification information By receiving and outputting a voice message signal including a change signal or an avatar, it is possible to prevent the phone from being lost.

1 is a schematic view of a system for preventing the loss of a mobile phone according to an embodiment of the present invention.
FIG. 2 is a block diagram schematically showing the wireless transmission terminal of FIG. 1;
FIG. 3A is a block diagram schematically showing a cellular phone terminal of FIG. 1. FIG.
FIG. 3B is a block diagram schematically showing the lost notification signal output unit of FIG. 3A.
4 is a flowchart illustrating the operation of the cell phone loss prevention system according to an embodiment of the present invention.
5 is a diagram illustrating a state in which a voice message signal including an avatar transmitted from an external management server is output in a cellular phone loss prevention system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which those skilled in the art can readily implement the present invention.

1 is a block diagram schematically showing a system for preventing loss of a mobile phone according to an embodiment of the present invention, FIG. 2 is a block diagram schematically showing a radio transmitting terminal of FIG. 1, FIG. 3 is a block diagram schematically showing the lost notification signal output unit of FIG. 3A, FIG. 4 is a flowchart showing the operation of the cell phone loss prevention system according to an embodiment of the present invention, The voice message signal including the avatar transmitted from the external management server in the cellular phone loss prevention system according to the embodiment of the present invention is outputted.

Referring to FIG. 1, a cellular phone loss prevention system according to an embodiment of the present invention detects time information in which a signal is not received from a wireless transmitting terminal 100 in a mobile phone terminal 200, and uses the detected time information A mobile phone terminal 200, an external management server 300, and an emergency contact 400. The wireless terminal 100 includes a wireless terminal 200,

The wireless transmission terminal 100 generates a search signal for determining whether the mobile phone terminal 200 is lost and transmits the search signal to the mobile phone terminal 200. The wireless transmission terminal 100 includes a mobile terminal 200 and a short- May be a wireless communication device. If the wireless transmitting terminal 100 is a device capable of short range wireless communication capable of transmitting and receiving a search signal with the mobile phone terminal 200, the type of the wireless transmitting terminal 100 is irrelevant. However, the wireless transmitting terminal 100 should be a portable device that can be carried by a user, and the device must be able to determine whether the user of the mobile phone terminal 200 is out of a predetermined distance or more. For example, the wireless transmitting terminal 100 may be in the form of an accessory that is attached to a part of the user's body, such as a necklace, a bracelet, an ankle and a wrist watch, or may be in the form of a card .

The transmission and reception of the search signals between the wireless transmitting terminal 100 and the mobile terminal 200 can be performed using one of Bluetooth communication, infrared communication, DSRC, and Zigbee communication. Here, the Bluetooth is a communication method capable of real-time wireless communication between bidirectional devices located close to each other, and wireless communication is possible within a distance of usually 10m or less according to the Bluetooth standard. In addition, the ZigBee is similar to Bluetooth in terms of bidirectional wireless communication between devices located close to each other, but is a short-range wireless communication method having characteristics of lower power and lower price than Bluetooth, and is capable of communication within a range of maximum 50 m. The dedicated short-range communication is a non-contact type recognition method in which a small chip is attached to various articles to transmit and process object information and surrounding environment information in a radio frequency, and is a non-contact type recognition method in which a short- And a dedicated frequency band is allocated among the devices to communicate. This dedicated local communication can communicate at a relatively short distance of 1.8m or less using a low frequency system (30KHz ~ 500KHz) and can communicate at a relatively long distance of 27m using a high frequency system (850MHz ~ 50MHz). Such a short-range wireless communication method has a limited range of communication between devices, and therefore, it is impossible to transmit / receive signals when the distance exceeds a certain distance.

The radio transmitting terminal 100 includes a signal transmitting unit 110, an alarm generating unit 130, and a processor 120, as shown in FIG. Although not shown, the wireless transmission terminal 100 may further include a power supply unit for supplying operation power of each configuration.

The signal transmitting unit 110 generates a search signal for determining whether the mobile phone terminal 200 is lost and transmits a search signal to the mobile phone terminal 200. [

The alarm generation unit 130 generates an alarm when an alarm generation request is received from the mobile phone terminal 200. That is, the alarm generator 130 can output an alarm signal, which is preset in advance, to the outside through voice output means such as a speaker when the mobile terminal 200 can not transmit / receive a search signal.

The processor 120 controls the operation of the signal transmitting unit 110 and the alarm generating unit 130. That is, the processor 120 controls the operation of the signal transmitter 110 and the alarm generator 130 to generate a search signal for determining whether the mobile phone 200 is lost, and transmits the search signal to the mobile phone 200 And generates an alarm when the mobile terminal 200 does not transmit or receive a search signal.

The mobile phone terminal 200 is connected to the wireless transmitting terminal 100 through a local area network and sends and receives a search signal and is connected to the external managing server 300 or the emergency contact 400 through a wireless communication network, The transmission of the lost status signal to the emergency contact 400 or the transmission of the lost notification information to the external management server 300 is performed according to the size of the time when no signal is received And if it is determined that the cellular phone terminal 200 is lost, the external management server 300 can receive and output a screen color change signal included in the lost notification information or a voice message signal including the avatar. The mobile phone terminal 200 may be a variety of smartphones to be released in recent years, and the above components are appropriately redefined hardware or software of the smartphone according to functions. The mobile phone terminal 200 according to the present invention is an apparatus or application that can implement the above-described operations and is capable of operating a program. The mobile phone terminal 200 can be an IPad, a PDA (Personal Digital Assistant), a HPC (Hand- A personal digital assistant (PDA), a wireless application protocol (WAP) phone, a palm PC, an e-book terminal, and a hand held terminal (HHT).

3A, the mobile phone terminal 200 includes a communication unit 210, a first signal receiving unit 215, a reception determination unit 220, a time information calculation unit 230, a signal output unit 240, A loss notification unit 250, an information transmission unit 260, a second signal reception unit 270, a loss notification signal output unit 275, a position information collection unit 280, a storage unit 285, and a control unit 290, . 3, the first signal receiving unit 215, the reception determining unit 220, the time information calculating unit 230, the signal output unit 240, the loss notification unit 250, the information transmission unit 260, 2 signal receiving unit 270, the lost notification signal output unit 275 and the position information collecting unit 280 are shown as independent components from the control unit 290. However, each of the components is a component of the control unit 290 The possibility is obvious. Although not shown in FIG. 3A, the portable terminal further includes an input unit for receiving a telephone number of another terminal from a user, a display unit for displaying operation status information of the mobile phone terminal 200, It is obvious that a telephone number of another terminal to which a message is to be transmitted can be stored.

The communication unit 210 is a device for transmitting and receiving data with the external management server 300. The communication unit 210 connects a predetermined communication channel with the external management server 300 based on a protocol stack defined in the communication network, The location information, and the like stored in the mobile phone terminal 200 using the communication protocol defined in the communication program provided in the mobile phone terminal 200. In the present invention, an IEEE 802.11 WLAN (Wireless Local Area Network), an IEEE 802.15 WPAN (Wireless Personal Area Network), an UWB (Ultra WideBand), a WiFi, a ZigBee, 3G technology, 4G technology, LTE technology, and equivalent technology.

The first signal receiving unit 215 receives the search signal from the wireless transmitting terminal 100 and provides the received signal to the controller 290. Here, the search signal is a signal for determining whether or not the cellular phone terminal 200 is lost, and is a signal generated in the wireless transmission terminal 100 owned by the user and received by the first signal receiver 215.

The reception determination unit 220 determines whether or not a search signal is received from the wireless transmission terminal 100 and provides the determination result to the controller 290. [ That is, when the reception determination unit 220 can not receive the search signal from the wireless transmission terminal 100 owned by the user, the reception determination unit 220 can determine that the wireless transmission terminal 100 and the mobile terminal 200 are far apart, In this case, it is determined that the mobile phone terminal 200 is lost, and the determination result may be provided to the controller 290.

More specifically, the reception determination unit 220 measures the strength of the search signal received by the first signal reception unit 215 when an operation start command is input from the control unit 290. The period for measuring the strength of the search signal may be preset by default or may be measured by a period selected by the user. Then, the reception determination unit 220 determines whether the mobile phone terminal 200 is lost using the measured intensity of the search signal. Since the wireless transmitting terminal 100 and the cellular phone terminal 200 transmit and receive signals using the short-range wireless communication method, if the wireless transmitting terminal 100 and the cellular phone terminal 200 fall over a certain distance, the search signal generated in the wireless transmitting terminal 100 is transmitted to the mobile terminal 200 In this case, the reception determination unit 220 may determine that the mobile phone terminal 200 is lost if the mobile terminal 200 falls below a predetermined distance. The reception determination unit 220 may compare the strength of the search signal with a default value to determine that the mobile phone terminal 200 is not lost when the intensity of the search signal is greater than a specified value, It can be determined that the mobile phone terminal 200 is lost.

The time information calculation unit 230 calculates a time when the search signal is not received by the first signal reception unit 215 and provides the calculated time to the control unit 290. That is, when it is determined that the search signal is not received by the reception determination unit 220, the time information calculation unit 230 receives an operation start command from the control unit 290, and a search signal is not received from that time And provides the result of the calculation to the control unit 290. [

The signal output unit 240 outputs a predetermined voice signal when the time calculated by the time information calculation unit 230 is the first time or longer. For example, when the time calculated by the time information calculator 230 is more than 30 minutes, the signal output unit 240 receives an operation start command from the controller 290, And outputs the voice signal through voice output means such as a speaker or the like provided in the mobile phone terminal 200. The first time may be about 30 minutes to about 1 hour, but the present invention is not limited thereto and may be changed according to the life pattern or purpose of the user of the mobile phone terminal 200.

The loss notification unit 250 receives an operation start command from the control unit 290 when the time calculated by the time information calculation unit 230 is equal to or longer than a second time greater than the first time, 400). When the time calculated by the time information calculator 230 is determined to be equal to or longer than a second time that is greater than the first time, the loss notification unit 250 detects the loss of the contact 400 A message including a lost notification of the portable terminal and the current location information of the lost portable terminal is generated and transmitted. At this time, the message may be in the form of text or image, and may be a short message including the current location information received by the location information collecting unit 280 and a text message, or a multimedia message including an image. Here, the short message is a message in which a relatively short sentence (within 80 bytes) is expressed in a text form, and a multimedia message is a message of a relatively large capacity having various formats such as text, still image, music, voice, do.

The loss notification unit 250 may transmit the loss status signal in at least one of a text message, a telephone call, or a push notification service. Here, the push notification service may be a push service developed by a US Apple company that notifies a message to users who use the same program on a smartphone. However, the present invention is not limited to this kind. In addition, the previously designated contact 400 (i.e., emergency contact) may be a friend, a guardian, or a police officer, but the present invention is not limited to this kind.

In addition, the loss notification unit 250 may transmit the current GPS information detected by the position information collection unit 280 to the predetermined contact 400. In addition, the loss notification unit 250 notifies the current GPS information of the mobile phone terminal 200 together with the predetermined contact information 400 so that the person of the designated contact 400 can quickly know the current position of the mobile phone terminal 200 . Of course, the loss notification unit 250 can acquire the contact information 400 from the storage unit 285 and use it. In addition, the user must store contact information of a family member, a lover, a friend, etc., who are very familiar with the user, in the storage unit 285 in advance. In the present invention, when the time calculated by the time information calculation unit 230 is determined to be longer than the second time, which is greater than the first time, the location of the lost mobile phone terminal 200 can be more easily recognized. Of course, if the user possesses a plurality of mobile phone terminals 200, the mobile phone terminal 200 can designate that the lost status signal is transmitted to the user's mobile phone terminal 200. On the other hand, the second time may be about 1 hour to 3 hours, but it is not limited thereto and may be changed according to the life pattern or purpose of the user of the mobile phone terminal 200.

If the time calculated by the time information calculation unit 230 is a third time greater than the second time, the information transmission unit 260 transmits the preset loss notification information to the external management server 300. [ That is, when the time calculated by the time information calculation unit 230 is determined to be equal to or longer than the third time that is greater than the second time, the information transmission unit 260 transmits, to the control unit 290, And transmits the notification information to the external management server 300. The lost notification information may include a signal for changing the screen color of the mobile phone terminal 200 or a lost notification signal including a voice message signal including an avatar. In addition, the third time may be about 3 hours to 12 hours, but is not limited thereto and may be changed according to the life pattern or purpose of the user of the mobile phone terminal 200.

The second signal receiving unit 270 receives the loss notification signal included in the loss notification information from the external management server 300. That is, when the second signal receiver 270 determines that the time calculated by the time information calculator 230 is equal to or longer than the third time, which is greater than the second time, the second signal receiver 270 transmits the information from the information transmitter 260 to the external management server 300 A signal for changing the color scheme of the mobile terminal 200, a voice message signal including an avatar, and the like.

The loss notification signal output unit 275 outputs a loss notification signal received by the second signal reception unit 270. That is, when the time calculated by the time information calculation unit 230 is determined to be equal to or longer than the third time, which is greater than the second time, the loss notification signal output unit 275 outputs, A color notification signal including a screen color change signal for changing the color of the screen background of the mobile terminal 200 or a voice message signal including an avatar.

3B, the lost notification signal output unit 275 includes a screen color changing unit 276 for outputting a screen color change signal for changing the color of the screen background of the mobile phone terminal 200, And an avatar output unit 277 for outputting a voice message signal including the voice message signal. The avatar in the present invention may include a character representing the user himself or a character he or she likes or a character different from the character.

For example, as shown in FIG. 5, the portable terminal 200 having received the loss notification signal is' Hong Gil Dong's mobile phone with an avatar preset on the display screen through the avatar output unit 277. Quot; please return ". The voice format message shown in FIG. 5 is only an embodiment, and it is apparent that the content of the message, the message output method, and the structure of the message can be easily changed in various ways.

The location information collecting unit 280 collects location information of the mobile phone terminal 200 using GPS information or surrounding environment information. That is, the location information collecting unit 280 collects various location information of the mobile phone terminal 200 using the GPS information and / or the surrounding environment information in the user's main living place and the external management server 300 The location information of the mobile phone terminal 200 is collected, positioned or estimated by using the GPS information and / or the surrounding environment information at the request of the mobile terminal 200. To this end, the position information collecting unit 280 includes a GPS sensor, an acceleration sensor, a geomagnetic sensor, a gyro sensor, a gravity sensor, an altitude sensor, or a radio signal intensity sensor with a base station. However, the sensor type is not limited in the present invention. In addition, since such sensors are already implemented in ordinary terminals (smart phones), their configuration and / or operation is not described in detail in the present invention.

Here, the main living place means a place where the user who carries the mobile phone terminal 200 mainly lives or moves. Practically, the main living place may correspond to all the places visited by the user carrying the mobile phone terminal 200.

In addition, the location information collection unit 280 may change the location information collection period according to the moving speed of the mobile phone terminal 200. That is, when the mobile terminal 200 (user) is relatively slow or does not move, the information collection period is relatively slow, and when the mobile terminal 200 is relatively fast, Can be accelerated. Here, the determination of the moving speed can be made by referring to an acceleration sensor or the like to be described below. Accordingly, in the present invention, when the movement speed of the mobile phone terminal 200 is relatively slow, the information collection period of the position information collection unit 280 is relatively slow, The consumption amount can be minimized.

The position information collecting unit 280 defines the last position information by the GPS information as the initial position information when the signal change amount of the geomagnetic sensor is larger than the reference signal variation amount. The position information collecting unit 280 collects current position information relative to the initial position information using the velocity of the mobile phone terminal 200 obtained from the acceleration sensor and the moving azimuth angle of the mobile phone terminal 200 obtained from the geomagnetic sensor And map the acquired location information to the surrounding environment information to build and store the database.

The storage unit 285 maps the location information to the surrounding environment information to construct a database. The storage unit 285 constructs and stores a database by using the location information and the surrounding environment information obtained from the location information collection unit 280. That is, the storage unit 285 maps and stores the location information to the surrounding environment information to construct and store the database. Here, the ambient environment information refers to various information obtained from the acceleration sensor, the geomagnetism sensor, the gyro sensor, the gravity sensor, the altitude sensor, and / or the wireless signal intensity measurement sensor with the base station.

The database may include data obtained by mapping GPS position information to surrounding environment information and data obtained by mapping estimated position information without GPS position information to surrounding environment information. That is, in the present invention, the database is mapped not only to the GPS location information in the user's main living place but also to the location information in the GPS shaded area. Therefore, the database of the present invention has all of the location information of the GPS inaccessible area (shaded area) as well as the GPS available area in the main living place.

More specifically, the position information collecting unit 280 defines the last position information by the GPS information as the initial position information when the signal change amount of the geomagnetic sensor is relatively larger than the reference signal change amount, for example, The current positional information relative to the initial positional information is obtained using the velocity of the mobile phone terminal 200 obtained from the sensor and the mobile azimuth angle of the mobile phone terminal 200 obtained from the geomagnetic sensor, (Such as acceleration, geomagnetic field strength, angular velocity, gravity, altitude, and / or radio signal strength with the base station, etc.).

The reason for referring to the amount of change in the signal of the geomagnetic sensor is that the intensity of the geomagnetism in the open space of the Korean peninsula is about 0.5 G, Because. That is, the present invention determines whether or not the area is a GPS shadowed area by referring to a signal change amount of the geomagnetism sensor. Of course, in addition to this method, if the GPS signal is not received by referring to the GPS signal, the database can be constructed and stored by the above-described algorithm.

Therefore, the present invention can construct and store a database in which the location information of the mobile phone terminal 200 is mapped to the surrounding environment information in the main living place (particularly, the GPS shaded area) of the user carrying the mobile phone terminal 200 Therefore, if only the surrounding environment information can be known in the shadowed area of the GPS, the location information can be estimated using the above-described database.

The storage unit 285 or the control unit 290 may include a database processing unit (hardware or software / program) for processing the positional information and the surrounding environment information acquired from the positional information collecting unit 280 and constructing the database by a database, It is needless to say that a location information estimation unit (hardware or software / program) for extracting and estimating location information using the surrounding environment information of the database may be further provided. In some cases, the database processing unit and the positional information estimation unit may be performed by the control unit 290 included in the mobile phone terminal 200 itself.

The control unit 290 is provided with a loss prevention application and controls the operation of each component by executing the loss prevention application. That is, the control unit 290 detects whether or not a signal is received between the wireless transmitting terminal 100 and the mobile terminal 200 connected to the local area network by executing the loss prevention application. If the signal is not received, Or transmits the lost status signal to the emergency contact 400 or transmits the previously set lost notice information to the external management server 300. In response to the loss of the mobile terminal 200, It can receive and output a screen color change signal included in the lost notification information or a voice message signal including an avatar from the external management server 300. [

The control unit 290 allows the position information collecting unit 280 to position the mobile phone terminal 200 using GPS information or surrounding environment information. That is, the controller 290 normally collects the location information of the mobile phone terminal 200 using the GPS information and / or the surrounding environment information at the user's main living place, As shown in FIG.

In addition, the controller 290 estimates the location information of the mobile phone terminal 200 by using the GPS information and / or the surrounding environment information at the request of the external management server 300. At this time, the controller 290 determines whether the position is determined by the GPS information (that is, when the geomagnetic intensity change amount is relatively larger than the reference intensity change amount as the GPS dark region) Estimates the current position information of the mobile phone terminal 200 based on the surrounding information obtained from the information collecting unit 280 and transmits the position information to the external management server 300.

Of course, the controller 290 estimates the location information of the mobile phone terminal 200 using the database and the surrounding information stored in the storage unit 285 in the shaded area of the GPS information, and outputs the estimated location information to the outside To the management server (300).

The external management server 300 corresponds to a server device of a company or a communication company that provides the mobile phone loss prevention service and receives loss notification information and location information set in advance from the mobile phone terminal 200. [ That is, when the time calculated by the time information calculation unit 230 of the mobile phone terminal 200 is the third time, which is greater than the second time, the external management server 300 transmits the lost notice information, And stores and manages the location information. The stored location information may be provided to another terminal or storage medium of the user at a later request of the user, and may be useful for recovering the lost cell phone terminal 200. [

Also, the external management server 300 provides the map information including the location information of the mobile phone terminal 200 to another terminal or storage medium of the user at the request of the user. Of course, for this purpose, the external management server 300 may include software or a program for building a map information database (for example, a general map, a skyview photographing map, a satellite photographing map, and an underground shopping center map).

4, the user first executes a loss prevention application of his / her cell phone terminal 200, and then executes the loss prevention application of his or her cell phone terminal 200. [ (S10).

Then, if it is determined that the search signal is not received by the reception determination unit 220, the time information calculation unit (or the time information calculation unit) 220 receives the search signal from the wireless transmission terminal 100 via the signal reception unit 215 230 to calculate the time when the search signal is not received from that time (S30).

Then, it is determined whether the time calculated by the time information calculator 230 is equal to or greater than the first time (S40). If the calculated time is equal to or greater than the first time, a preset audio signal is output (S45).

If it is determined that the time calculated by the time information calculation unit 230 is not less than the second time which is greater than the first time (S50), and if the calculated time is not less than the second time that is longer than the first time, To the predetermined contact 400 (S55).

In addition, after determining whether the time calculated by the time information calculating unit 230 is a third time greater than the second time (S60), the preset loss notification information is transmitted to the external management server (S65).

Then, the loss notification signal included in the loss notification information is received from the external management server 300 (S70), and the received loss notification signal is output (S75). The lost notification signal may include a screen color change signal for changing the color of the screen background of the mobile phone terminal 200 and a voice message signal including the avatar.

According to the cellular phone loss prevention system configured as described above, it is possible to detect whether or not a signal is received between the wireless transmitting terminal 100 connected to the local area network and the cellular phone terminal 200, A lost state signal is transmitted to the emergency contact 400 or a previously set loss notification information is transmitted to the external management server 300 according to the size of the time when no signal is received, 300 to receive and output a screen color change signal included in the loss notification information or a voice message signal including an avatar, thereby preventing loss of the mobile phone terminal 200.

It is to be understood that the present invention is not limited to the above-described embodiment, and that various modifications and changes may be made without departing from the scope of the present invention as defined in the appended claims. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

100: wireless transmitting terminal 110:
120: processor 130: alarm generator
200: mobile phone terminal 210:
215: First signal receiving unit 220:
230: Time information calculation unit 240: Signal output unit
250: loss notification unit 260: information transmission unit
270: second signal receiving unit 275: lost notification signal output unit
276: screen color changing unit 277: avatar output unit
280: position information collecting unit 285:
290: control unit 300: external management server
400: Emergency contact

Claims (10)

A mobile communication terminal, comprising: a wireless transmitting terminal connected to a wireless communication network; a cellular phone terminal; and an external management server, wherein the cellular phone terminal detects time information when a search signal from the wireless transmitting terminal is not received, , The system
The mobile terminal
A first signal receiving unit for receiving a search signal from the wireless transmitting terminal;
A reception judging unit for judging whether or not the search signal is received;
A time information calculation unit for calculating a time when the search signal is not received;
A signal output unit for outputting a predetermined voice signal when the calculated time is the first time or longer;
A loss notification unit for transmitting a loss situation signal to a predetermined contact when the calculated time is not less than a second time which is longer than the first time;
An information transmission unit for transmitting the preset loss notification information to the external management server when the calculated time is a third time greater than the second time;
A second signal receiving unit for receiving a loss notification signal included in the loss notification information from the external management server;
A loss notification signal output unit for outputting the received loss notification signal; And
And a controller for installing a loss prevention application and controlling the operation of each of the components by executing the loss prevention application.
The method according to claim 1,
Wherein the lost notification signal includes a screen color change signal for changing a color of a screen background of the mobile phone terminal and a voice message signal including an avatar.
The method according to claim 1,
The lost notification signal output unit
A screen color changing unit for changing a color of a screen background of the mobile phone terminal; And
And an avatar output unit for outputting a voice message including an avatar.
The method according to claim 1,
The mobile terminal
A location information collecting unit for collecting location information of the mobile phone terminal using GPS information or environment information; And
Further comprising a storage unit configured to map the location information to the environment information to construct a database.
The method of claim 4,
Wherein the control unit causes the position information collecting unit to position the cellular phone terminal using the GPS information or the ambient environment information, and when the position is not determined by the GPS information, And transmits the location information of the mobile phone terminal obtained from the external management server to the external management server.
The method of claim 4,
Wherein the mobile phone terminal further comprises a communication unit for transmitting and receiving data with the external management server,
Wherein the external management server stores and manages map information including location information of the mobile phone terminal.
The method of claim 4,
Wherein the environment information is information obtained from at least one of an acceleration sensor, a geomagnetism sensor, a gyro sensor, a gravity sensor, an altitude sensor, and a radio signal strength with a base station installed in the mobile phone terminal.
The method of claim 7,
Wherein the position information collecting unit defines the last position information by the GPS information as the initial position information when the signal change amount of the geomagnetic sensor is larger than the reference signal change amount,
Acquiring current position information relative to the initial position information using the velocity of the terminal obtained from the acceleration sensor and the moving azimuth angle of the terminal obtained from the geomagnetic sensor,
And mapping and storing the obtained location information to the surrounding environment information to build and store the database.
The method according to claim 1,
Wherein the loss notification unit transmits the lost status signal through at least one of a text sending function, a telephone dialing function, and a push notification service.
The method according to claim 1,
Wherein the wireless transmitting terminal comprises: a signal transmitting unit transmitting a search signal to the cellular phone terminal; And
And an alarm generating unit for generating an alarm when a search signal can not be transmitted to or received from the mobile phone terminal.
KR1020140103887A 2014-08-11 2014-08-11 System for detecting loss of mobile phone KR20160019296A (en)

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PCT/KR2015/008403 WO2016024795A2 (en) 2014-08-11 2015-08-11 Mobile phone loss prevention system

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