JP2008109330A - Retrieval system for mobile terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To get information before a battery is dead or until a mobile terminal moves out of service area if the mobile terminal is missing. <P>SOLUTION: This mobile terminal 100 is provided with: a peripheral voice recording means for recording a peripheral voice acquired by a microphone 16 with a fixed time interval or when the mobile terminal performs hand-over, and registers the location in an optimal base station 300 and a path recording means for recording the location information and date of the base station received by the mobile terminal. When a low voltage detection part 15 of the mobile terminal detects an arbitrary voltage of a battery 17, or a service area perimeter detection part 13 detects a service area perimeter, the information of a peripheral voice recording part 12, and a path recording part 11 to which the unique information and missing information reason of the terminal is added and transmitted to the base station, and the missing information is transmitted to a private communication controller 400 for recording, and when the unique information specifying the mobile terminal is received from an extension telephone set 600 to the private communication controller, the missing information is provided with voice guide or character information. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a search system for searching for a mobile terminal after it is lost.

  When a mobile radio terminal is lost in a mobile phone or a mobile terminal for offices, the owner makes an incoming call to the lost terminal and finds the mobile terminal using the ringtone. However, in this case, it is not easy to find out that the owner is away from the lost mobile terminal or that the ringtone is muted.

  As an improvement measure, when the main battery of the mobile terminal is switched to the auxiliary battery, the vibration detection unit detects the presence or absence of vibration. If there is no vibration, the mobile terminal automatically determines that the mobile terminal is in a lost state. There is a technique for transmitting the received position information (longitude / latitude) to a predetermined terminal by e-mail (for example, Patent Document 1).

JP 2004-23573 A

  However, in the case of the above technique, the mobile terminal has a drawback that it is limited to a terminal having a GPS reception function.

  The purpose of the present invention is to transmit the area that the mobile terminal has traced while the mobile terminal is normally operable, its date / time, ambient voice, etc. to the lost information management unit in the private branch exchange, so that a considerable date and time after the loss. To provide a mobile terminal search system that makes it easy to remember the lost place by obtaining information on the lost day's moving area, date / time, and surrounding voice even when the mobile terminal is inoperable .

  According to a first aspect of the present invention, there is provided a local area communication control apparatus connected to an external line and an internal line, one or more extension telephones connected to the local area communication control apparatus, one or more base stations connected to the local area communication control apparatus, In a mobile terminal system comprising one or more mobile terminals wirelessly connected to a base station, the mobile terminal moves the mobile terminal at a certain time interval or whenever the mobile terminal performs handover and registers its location with the optimal base station. Ambient voice recording means for recording ambient voice for a predetermined time acquired by a microphone provided in the terminal, and when the ambient voice recording means operates or every time a predetermined time elapses or the mobile terminal is handed over And a route recording means for recording the location information and date / time of the base station received by the mobile terminal each time the location registration to the new base station is performed. When it is detected that the battery voltage is lower than a preset threshold value, all or a part of the information recorded by the surrounding voice recording means and the route recording means and the uniqueness of the mobile terminal Information is transmitted to the local communication control device, the local communication control device comprising a lost terminal management unit for storing information received from the mobile terminal, and the mobile terminal from the extension telephone to the local communication control device In the case of receiving a search request including the specific information for identifying the mobile phone, the lost terminal management unit provides the extension telephone with information received from the mobile terminal by voice guidance or text information.

  According to a second aspect of the present invention, in the first aspect of the present invention, when the mobile terminal is capable of receiving radio waves from a plurality of base stations, the route recording means includes information on the received radio wave intensity from each base station. The position information of the base station is recorded.

  According to the present invention, even when the mobile wireless terminal is lost, even if the battery is already out of service or the wireless terminal is out of service area, it is possible to obtain information on the movement route of the terminal until the battery runs out, date and time, and surrounding voice information. Even after a long time has passed, the possibility of finding a lost mobile terminal is increased.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram of an embodiment of a mobile terminal search system according to the present invention.

  In FIG. 1, the mobile terminal search system transmits from the mobile terminal 100 to the local area communication control apparatus 400, the base station 300 connected thereto, the mobile terminal 100 wirelessly connected to the base station 300, and the local area communication control apparatus 400. The lost terminal management unit 500 for storing and managing the lost terminal information and the extension telephone 600 for searching for the lost mobile terminal.

  The base station 300 receives the lost information, the unique information and the reason for the loss transmitted from the mobile terminal 100 in addition to the well-known functions such as voice communication with the mobile terminal 100 and transmission / reception of data communication, etc. It transmits to the control apparatus 400. The unique information is arbitrary but may be, for example, an ID unique to the mobile terminal, a telephone number, or a password.

  The local area communication control device 400 accumulates the lost terminal information sent from the base station 300 in the lost terminal management unit 500, and when receiving an information request for the lost terminal from the extension telephone 600, it uses voice guidance or text information. Information is sent to the extension telephone 600.

  In addition, when receiving lost information from the mobile terminal 100 after receiving a loss preliminary alarm notification request (to be described later) from the mobile terminal 100, the lost information is recorded in the lost terminal management unit 500 and at the same time one or more extensions specified in advance. Notify the phone by voice guidance or text information.

  The extension telephone 600 is a normal extension telephone that can perform a voice call or display character information on a display screen, and searches for a lost terminal.

  2 and 3 show display examples when lost terminal information is sent as text information from the local area communication control device 400 to the extension telephone 600. FIG.

  FIG. 2 is a display example when the lost terminal information is sent because the battery is in a low voltage state, and FIG. 3 is displayed on the extension telephone 600 side when the mobile terminal 100 is lost outside the communication range. It is a display example. The numerical values of the radio wave intensity in FIGS. 2 and 3 may be replaced with easy-to-understand characters. For example, 60 dB may be displayed in levels, such as “close”, 55 dB “somewhat close”, and 35 dB “far”.

  The base station 300 may be an office PHS base station, a wireless access point compatible with wireless LAN communication, or a mobile phone base station, and the local area communication control device 400 may be a telephone exchange station or a center (not shown) that manages a lost terminal, The extension telephone 600 may be a general telephone, a FAX telephone, or a mobile phone.

  The mobile terminal 100 is a terminal that can be carried and can be communicated via the base station 300 when used, such as a mobile phone that can communicate with an arbitrary base station, a mobile terminal for business use, and a security terminal. , Path recording unit 11, ambient voice recording unit 12, out-of-service area detection unit 13, low voltage detection unit 15, control unit 14, microphone 16, battery 17, wireless transmission / reception circuit 18 (other commonly provided dial keys, LCD Etc. are not shown), and the control unit 14 keeps the surrounding voice constant by the microphone 16 every time a certain interval time or the mobile terminal performs handover and registers the location to the optimum base station. And the audio data is input to the ambient audio recording unit 12, and the ambient audio recording unit 12 records the input audio.

  At this time, the ambient voice recording unit 12 may also serve as a recording unit (not shown) installed for voice recording of the answering machine.

  In addition, the control unit 14 is connected to the base station received by the mobile terminal 100 when the surrounding voice recording unit is operated, or when the mobile terminal 100 performs handover at a certain time interval or performs location registration to the optimal base station. Based on the position information and calendar information (not shown) inside the mobile terminal 100, the date and time at that time is output to the route recording unit 11, and the route recording unit 11 records the input information. At this time, if the mobile terminal 100 can receive radio waves from one or a plurality of base stations, the path recording unit records the position information of the base stations including information on the received radio wave intensity from each base station. To do. At this time, the received radio field intensity values from the respective base stations may be selected from several base stations with strong received radio field intensity values, sorted and recorded.

  The out-of-service area detection unit 13 constantly monitors the strength of the radio waves of the base station received from the radio transmission / reception circuit 18, and the mobile terminal 100 moves to a place where the radio wave condition is bad, and the base station whose location is registered at that time In addition, the control unit 14 collects the information recorded in the route recording unit 11 and the surrounding voice recording unit 12 when it is detected that there is no base station that can be handed over and the radio wave has weakened to the out-of-service range. Then, the lost information is created, the unique information and the information indicating that the mobile terminal has moved to the out-of-service area that is the reason for the loss is added, and the data is transmitted to the optimum base station.

  The low voltage detection unit 15 constantly monitors the battery voltage of the battery 17, and when detecting that the voltage has decreased to a preset threshold value, the control unit 14 causes the path recording unit 11 and the surrounding voice recording unit 12 to The recorded information is aggregated, loss information is created, unique information and information indicating low voltage detection as the reason for loss are added, and data is transmitted to the optimum base station.

  At this time, the threshold level of the battery voltage to be notified can be arbitrarily changed. For example, threshold values may be provided in three stages of “high”, “medium”, and “low voltage”.

  Also, before the mobile terminal 100 is lost, by registering a lost preliminary alarm notification request from the mobile terminal 100 to the local area communication control device 400, the threshold level at which the battery voltage level is set in advance is set to the low voltage detection unit. If detected at 15, the lost information is transmitted, sent from the base station 300 that received the lost information to the local communication control device 400, and recorded by the lost terminal management unit 500 in the local communication control device, and at the same time, the local communication control device 400 From the above, it may be notified by voice guidance or text information to the extension telephone 600 designated in advance when the loss preliminary alarm notification request is set as a loss preliminary alarm notification.

  Next, a specific usage example of the mobile terminal search system according to the present invention will be described.

  In the configuration of the mobile terminal search system shown in FIG. 1, the mobile terminal 100 is lost in the vicinity of the area D of the base station 300, and then the mobile terminal 100 runs out of battery from a low voltage state without being charged. A case will be described where the owner searches for the lost mobile terminal 100 from the extension telephone 600 and acquires the lost terminal information, FIG.

  When the mobile terminal 100 performs a handover to the area D of the base station 300, the control unit 14 acquires the surrounding voice from the microphone 16 for a certain period of time, transmits the voice data to the surrounding voice recording unit 12, and The voice recording unit 12 records the received voice. At the same time, the control unit 14 detects the position information (area D) including the radio field intensity value of the base station 300, the position information (area E) including the radio field intensity values of other base stations, and the calendar information ( The date and time (for example, July 25, 16:15) is output to the route recording unit 11 from the not-shown), and the route recording unit 11 records the input information.

  Thereafter, the mobile terminal 100 performs ambient voice recording and route recording processing at regular time intervals until it is lost and low voltage is detected (for example, 20:22 on July 25). If the above is satisfied, the old information is overwritten.

  Since the low voltage detection unit 15 monitors the battery voltage of the battery 17 and detects that the voltage has decreased to a preset threshold value, the control unit 14 receives ambient sound from the microphone 16 for a certain period of time. The voice data is acquired and transmitted to the ambient voice recording unit 12, and the ambient voice recording unit 12 records the received voice. At the same time, the control unit 14 detects the position information (area D) including the radio field intensity value of the base station 300, the position information (area E) including the radio field intensity values of other base stations, and the calendar information ( The date and time (for example, July 25, 20:22) is output to the path recording unit 11 from the not-shown), and the path recording unit 11 records the input information. Then, the control unit 14 adds the reason that the unique information and the lost information are transmitted to the data recorded in the path recording unit 11 and the surrounding voice recording unit 12, in this case, the battery low voltage detection, Data is transmitted to base station 300.

  The base station 300 that has received the information transmitted from the mobile terminal 100 transmits the information to the local area communication control apparatus 400.

  The local area communication control apparatus 400 that has received the information records the lost information of the mobile terminal 100 in the lost terminal management unit 500.

  A few days later, the owner makes an inquiry to the local communication control device 400 from the extension telephone 600 and is asked to input unique information. The extension telephone 600 inputs unique information for identifying the lost terminal 100.

  When the unique information input from the extension telephone 600 matches the unique information added to the lost terminal, the local area communication control device 400 reads the lost terminal information of the mobile terminal 100 from the lost terminal management unit 500 and sends it to the extension telephone 600. The lost terminal information is sent, and the lost terminal information as shown in FIG.

  FIG. 4 is a diagram showing an operation flowchart until the mobile terminal of the mobile terminal search system according to the present invention transmits lost information.

  The mobile terminal 100 determines whether a certain period of time has elapsed during operation (S30) or whether a handover has been performed (S31). Is recorded in the surrounding voice recording unit 12, and the control unit 14 performs route recording processing to record the location information and date / time of the base station in the route recording unit 11 (S32).

  When it is detected that the low voltage detection unit 15 is at a low voltage due to the battery voltage drop of the battery 17 or the mobile terminal 100 is located near the out of service area by the out of service area detection unit 13 (S33), The control unit 14 reads the data from the route recording unit 11 and the surrounding voice recording unit 12 and creates lost information, adds the unique information of the mobile terminal 100 and the reason for the loss (S34), and transmits the data to the base station 300 (S34). S35).

  FIG. 5 is a diagram showing an operation flowchart for receiving lost information transmitted from the mobile terminal 100 by the mobile terminal search system according to the present invention and transmitting the lost information of the mobile terminal to the extension telephone of the search source.

  The base station 300 that has received the lost information from the mobile terminal 100 transmits the information to the local area communication control device 400. The local area communication control device 400 receives the information (S40), and the lost terminal management unit 500 records the information (S41).

  In this case, when a request for information on the lost terminal is received from the extension telephone 600 (S42), the local communication control device 400 is connected to the requesting extension telephone (S43), and the local communication control is performed. The device 400 requests the extension telephone 600 to input unique information for identifying the lost terminal (S44). Upon receiving the unique information from the extension telephone 600 (S45), the local area communication control device 400, when there is the lost information of the corresponding unique information (S46), the surrounding voice information to the extension telephone 600 that is the source of the lost terminal information The route record information is output by voice guidance or character data (S47).

  According to the present embodiment, it is possible to know the route information of the mobile terminal, the date and time, and the surrounding voice even if the mobile terminal is out of battery or out of service after the mobile terminal is lost.

  Therefore, for example, after a considerable time has passed since the loss of the mobile terminal, even if the owner of the mobile terminal notices that it has been lost, the local communication control device Since it is possible to listen to the date and time of the surrounding voice, it becomes easy to remember the behavior of the lost day, so it is possible to easily search for the lost terminal.

  In addition, when this configuration is performed with a security system, if a child carrying a mobile terminal gets lost and can no longer be contacted, by searching for the mobile terminal, in what area what time and what day, It is possible to grasp and guess what kind of conversation and what environment it was in from surrounding voice.

1 is a configuration diagram of an embodiment of a mobile terminal search system according to the present invention. FIG. It is an example of the lost terminal information displayed on the display screen of the lost terminal information request source when the mobile terminal sends lost information due to battery low voltage detection. It is an example of the lost terminal information displayed on the display screen of the lost terminal information request source when the mobile terminal sends the lost information due to out-of-service area movement. It is a figure which shows an example of the operation | movement flowchart of embodiment of the search system of the mobile terminal by this invention. It is a figure which shows an example of the operation | movement flowchart of embodiment of the search system of the mobile terminal by this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100: Mobile terminal, 11: Path | route recording part, 12: Ambient voice recording part, 13: Out-of-service area detection part, 14: Control part, 15: Low voltage detection part, 16: Microphone, 17: Battery, 18: Wireless transmission / reception circuit , 300: base station, 400: local area communication control device, 500: lost terminal manager, 600: extension telephone.

Claims (2)

Wirelessly connected to the base station with a local area communication control apparatus connected to an external line and an internal line, one or more extension telephones connected to the local area communication control apparatus, one or more base stations connected to the local area communication control apparatus In a mobile terminal system consisting of one or more mobile terminals,
The mobile terminal records ambient audio for a predetermined time acquired by a microphone provided in the mobile terminal at regular time intervals or whenever the mobile terminal performs handover and performs location registration to the optimal base station. Ambient voice recording means, and when the ambient voice recording means is operated or when a predetermined time elapses, or each time the mobile terminal performs handover and performs location registration to a new base station, the mobile terminal receives A path recording means for recording location information and date / time of a base station, and when detecting that the voltage of a battery included in the mobile terminal is lower than a preset threshold, Send all or part of the information recorded by the recording means and the route recording means and the specific information of the mobile terminal to the local area communication control device,
The local communication control apparatus includes a lost terminal management unit that accumulates information received from the mobile terminal, and a search request including the specific information for identifying the mobile terminal from the extension telephone to the local communication control apparatus. When received, the lost terminal management unit provides information received from the mobile terminal to the extension telephone by voice guidance or text information.   In Claim 1, when the mobile terminal is capable of receiving radio waves from a plurality of base stations, the route recording means records base station position information including information on received radio wave strength from each base station. A mobile terminal search system.

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