JP2010068324A - Mobile terminal, mobile terminal control method, and mobile terminal control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal receiving broadcast push type information provision service without depending on a radiowave state and stably receiving the service. <P>SOLUTION: The mobile terminal 10 includes: a mobile terminal signal receiving means 1 for receiving a mobile terminal signal from a nearby base station 100; a modulation signal receiving means 2 for receiving an FM signal from the other mobile terminal 10A; a received information storage means 3 for storing character information on the mobile terminal signal and the FM signal in an emergency information table 3a; an emergency information detection means 4 for detecting emergency information from the character information; a modulation signal conversion means 5 for converting the mobile terminal signal into the FM signal; a modulation signal output means 6 for outputting the FM signal by radiowaves; an out-of-service determination means 7 for determining whether or not the terminal is located in an out-of-service area; a receiving frequency retrieval means 8 for retrieving a receiving frequency of the FM signal from a frequency management table 8a when the terminal is in the out-of-service area; and a frequency change means 9 for changing the FM signal into a frequency different from the receiving frequency from the frequency management table 8a when the FM signal is received from the other mobile terminal 10A. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable terminal capable of receiving a push-type information providing service that is distributed simultaneously, and in particular, a portable device that can receive the service without depending on the reception state of radio waves and can stably receive the information of the service. The purpose is to provide a terminal.

  The current communication system has received disaster information as soon as possible in order to reduce the damage in the event of a large-scale disaster that has occurred in recent years and the enormous damage caused by the disaster. Is required to do. In order to meet this demand, mobile telecommunications carriers are developing services that simultaneously deliver emergency bulletins to mobile terminals included in the target area, based on bulletins delivered by the Japan Meteorological Agency. As this service, there is a service for notifying an emergency early warning by generating a pop-up display or a dedicated warning sound on a mobile terminal that has received the emergency early warning, and further improvement of the service content is desired.

  In conventional mobile terminals, the disaster occurrence information distributed from the disaster information distribution device includes a command that activates a specific application installed in each mobile terminal, and the location information is forced by the command when disaster occurrence information is received. And acquiring a transfer request including the location information to the disaster information distribution device and receiving optimum evacuation information individually created by the disaster information distribution device based on the location information (for example, Patent Document 1).

Further, when it is assumed that a conventional portable terminal has an FM signal transmission / reception function in order to transmit / receive disaster information using an FM signal at the time of a disaster, it is used in an FM broadcast station in association with predetermined position information. Broadcast station use frequency is stored in advance, the current position is specified based on the predetermined position information received via the network, and the frequency that does not compete with the broadcast station use frequency is selected from the specified current position. In addition to setting the selected frequency as the transmission frequency, receiver operation information for setting the reception frequency (information regarding the operation procedure for setting the reception frequency) is stored in advance, and this reception operation information is By setting the frequency selected by using as the receiving frequency, it is possible to automatically set the frequency that has been done manually. Without applying responsible, there is to enable setting of a frequency that does not conflict such as FM broadcast stations, the frequency being used by another (e.g., see Patent Document 2).
JP 2007-135000 A JP 2008-109494 A

  However, when a conventional mobile terminal is located outside the radio wave range where radio waves cannot be received, it is impossible to receive the delivered emergency bulletin. Has a serious problem of being unable to.

  The present invention has been made to solve the above-described problem, and even when the radio wave is not received in the radio wave area, the emergency signal is transmitted / received between the terminals using the modulation signal, and the radio wave reception state is achieved. It is an object of the present invention to provide a mobile terminal that can stably receive emergency bulletins without depending on the mobile phone.

  The portable terminal disclosed in the present application includes portable terminal signal receiving means for receiving a portable terminal signal including character information and / or voice information that is relayed at the time of communication between portable terminals. In a mobile terminal that receives a terminal signal, a modulation signal receiving unit that receives a modulation signal, a reception information storage unit that stores character information and / or voice information included in the mobile terminal signal and the modulation signal as reception information, Emergency information detection means for detecting delivery of the emergency information based on the stored received information, modulation signal conversion means for converting a mobile terminal signal including the detected emergency information into the modulation signal, and the converted information And a modulation signal output means for outputting a modulation signal including emergency information as a radio wave.

  Thus, the mobile terminal disclosed in the present application stores the character information and / or voice information included in the mobile terminal signal and the modulation signal as reception information, detects the delivery of emergency information from the reception information, and Since the mobile terminal signal including the detected emergency information is converted into the modulated signal and the modulated signal is output as a radio wave, the emergency information is not dependent on the radio wave state, and a modulation signal other than the mobile terminal signal is newly added. The emergency information is transmitted from the mobile terminal and transmitted to a wide range of mobile terminals, so that the emergency information can be transmitted.

  In the portable terminal disclosed in the present application, the modulation signal conversion unit uses an FM signal as the modulation signal, if necessary. Thus, since the portable terminal disclosed in the present application uses an FM signal that propagates over a wider range as the modulation signal, it is easy to handle and can transmit the modulation signal over a wide range, while increasing the ease of introduction. Emergency information transmission can be improved.

  In addition, the mobile terminal disclosed in the present application, if necessary, based on the state of received radio waves, a radio out-of-range determination means for determining whether the current location is out of the radio range where radio waves cannot be received, and when out of the radio range And receiving frequency search means for searching for a frequency for receiving the modulated signal. Thus, since the mobile terminal disclosed in the present application searches for the frequency for receiving the modulated signal when the current location is out of the radio range, the mobile terminal receives the modulated signal when out of the radio range. Therefore, it is possible to improve the reliability of the emergency information, suppress the leakage of the emergency information, and improve the emergency information.

  In addition, when necessary, the mobile terminal disclosed in the present application includes a frequency changing unit that changes the modulation signal to a frequency different from the received frequency when the modulation signal including the emergency information is received. The signal output means outputs the modulated signal with the changed frequency as a radio wave. As described above, when the mobile terminal disclosed in the present application receives the modulated signal, the mobile terminal changes the modulated signal to a frequency different from the received frequency and outputs the modulated signal as a radio wave. As a result, a signal is transmitted, the certainty of reception of the modulated signal in the mobile terminal located outside the radio wave range is increased, transmission failure of emergency information can be suppressed, and emergency information can be transmitted.

  In addition, in the mobile terminal disclosed in the present application, the modulated signal output unit repeatedly outputs the converted modulated signal within a certain time and / or a certain number of times as necessary. As described above, since the mobile terminal disclosed in the present application repeats the output of the converted modulation signal within a certain time and / or within a certain number of times, the transmission / reception timing synchronization of the mobile terminal is achieved. The transmission of emergency information can be suppressed and the transmission of emergency information can be improved.

(First embodiment of the present invention)
Hereinafter, a portable terminal according to a first embodiment of the present invention will be described with reference to FIGS.
1 is a block diagram showing a configuration of a mobile terminal according to the first embodiment of the present invention, FIG. 2 is an example of data layout and stored data of the mobile terminal described in FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a flowchart of the portable terminal described in FIG. 1, FIG. 5 is a flowchart of determining the transmission frequency of the portable terminal described in FIG. 1, and FIG. FIG. 7 is a block diagram of adding FM reception activation flag data of the portable terminal described in FIG. 1 and an example of setting values of FM reception activation flag data.

  In FIG. 1, a mobile terminal 10 as a mobile terminal according to this embodiment includes a mobile terminal signal receiving unit 1 that receives a mobile terminal signal that includes character information and is relayed between mobile terminals from a base station 100 having the highest reception sensitivity. And a modulated signal receiving means 2 for receiving an FM signal as a modulated signal from another portable terminal 10A having the same configuration as that of the portable terminal 10, and receiving information on the portable terminal signal and character information included in the FM signal. Received information storage means 3 stored in the emergency information table 3a, emergency information detection means 4 for detecting the delivery of emergency information based on the stored received information, and a portable terminal signal including the detected emergency information. Modulated signal converting means 5 for converting to the FM signal, modulated signal output means 6 for outputting the FM signal including the converted emergency information as a radio wave, and the received radio wave For receiving FM signals based on the out-of-radio wave determining means 7 for determining whether the current location is out of the radio wave range where radio waves cannot be received based on the state, and the frequency management table 8a for managing the frequency when out of the radio wave range. When receiving frequency search means 8 for searching for a frequency and an FM signal including the emergency information from another mobile terminal 10A, this modulated signal is sent to a frequency different from the frequency received based on the frequency management table 8a. Frequency changing means 9 for changing. Further, another portable terminal 10B having the same configuration as that of the portable terminal 10 receives the FM signal output from the modulated signal output means 6.

  As shown in FIG. 2 (a-1), the emergency information table 3a can include a theme ID item, a serial number item, and an information content item as items. This theme ID item indicates the emergency information transmission source and the theme, for example, the earthquake early warning from the Japan Meteorological Agency. The serial number item indicates a number unique to each theme ID item. This information content item indicates the message content of the received emergency information.

  Moreover, the frequency management table 8a can include item number items, frequency items, and usable flag items as items, as shown in FIG. This item number item indicates a unique number assigned by a serial number. This frequency item indicates the frequency of the FM signal in a usable range. This available flag item indicates whether or not the frequency described in this frequency item is currently in use, for example, a numerical value 1 when in use, and a numerical value 0 when not in use. .

  Further, as shown in FIG. 3A, the mobile terminal 10 includes a mobile terminal 10a included in a radio wave receivable area 100a capable of receiving radio waves from the base station 100, and the radio wave receivable area 100a. Two types of mobile terminals 10b that exist outside the service area and cannot perform wireless communication with other mobile terminals 10 coexist.

Hereinafter, the operation of the mobile terminal of the present embodiment based on the above configuration will be described.
First, as shown in FIG. 4, the portable terminal 10a receives an e-mail relayed through the base station 100 by the portable terminal signal receiving means 1 (S1). The received information storage means 3 temporarily stores this electronic mail.

  The emergency information detection means 4 determines whether the stored electronic mail is an emergency early warning delivery mail (S2). When the emergency information detection unit 4 determines that the e-mail is an emergency bulletin, the emergency information detection unit 4 searches the emergency information table 3a to determine whether the emergency bulletin is registered, and determines whether the emergency bulletin has already been received. (S3).

  In this determination, the emergency information detection unit 4 checks whether an emergency bulletin having a combination of the theme ID item and the serial number item that matches the emergency bulletin received in S1 is already registered in the emergency information table 3a. To do. When the emergency information detecting means 4 determines that the emergency bulletin has already been received, the temporary information stored in the received information storage means 3 is deleted and the email is discarded (S4). . By discarding this e-mail, it is possible to prevent the reception of overlapping emergency bulletins, and the computer resources of the mobile terminal 10a can be used effectively.

  In addition, if the mobile terminal 10a has not received the emergency bulletin according to the determination in S3, the mobile terminal 10a notifies the emergency flash by pop-up display on the display screen of the mobile terminal or generation of a dedicated warning sound (S5). ). The received information storage means 3 registers this emergency bulletin together with this notification in the emergency information table 3a (S6).

  For example, as shown in FIG. 2 (a-2), the received information storage means 3, when receiving the earthquake early warning from the Japan Meteorological Agency, the theme ID item “0005”, which means the earthquake early warning from the Japan Meteorological Agency, It is possible to register an emergency early warning record having a serial number item of “0002” and an information content item of “messages received:“ An earthquake occurred at ▲▲▲. Prepare for strong shaking ”.” As shown in FIG. 4, the modulation signal conversion means 5 converts the emergency early warning e-mail into a format that can be transmitted as an FM signal (S7).

  The frequency changing means 9 determines and sets the transmission frequency of the FM signal based on the frequency management table 8a in order to transmit the emergency bulletin as an FM signal (S8). As shown in FIG. 5, in the frequency setting, the frequency changing means 9 first starts searching the frequency management table 8a using the frequency determined by the random number as the search start position (S8-1).

  The frequency changing means 9 confirms whether the frequency determined by the random number is currently in use (S8-2). In this confirmation, the frequency changing means 9 can confirm whether it is currently used from the value of the available flag item, as shown in FIG. 2 (b-2). For example, the frequency changing means 9 can confirm that the frequency 100 MHz is currently used and the frequency 110 MHz is not currently used from the value of the available flag item in FIG.

  As shown in FIG. 5, the frequency changing means 9 determines whether or not all the frequencies registered in the frequency management table 8a have been searched for this confirmation (S8-3). When the frequency changing means 9 has searched all the frequencies by this determination, the frequency changing means 9 discards the emergency early warning mail created for transmission by the FM signal (S8-4).

  If there is an unsearched frequency based on this determination, the next search position in the frequency management table 8a is set (S8-5). The frequency changing unit 9 performs again the same processing as that after S8-2 based on the set search position.

  In addition, when the frequency changing unit 9 detects a frequency that is not currently used by checking the frequency in S8-2, the frequency changing unit 9 determines the detected frequency as the transmission frequency of the FM signal (S8- 6). As shown in FIG. 4, the modulation signal output means 6 transmits the FM signal at the frequency determined in S8-6 (S9).

  Further, the modulation signal output means 6 can set the time determined by the random number timer using the random number as the transmission waiting time until the FM signal transmission in S9. The modulation signal output means 6 uses this random number timer to shift the transmission timing of the FM signal from another portable terminal that similarly transmits the FM signal, and causes interference between the FM signal transmitted from the other portable terminal. Can be suppressed.

  Further, the modulated signal output means 6 can retransmit the FM signal repeatedly in this S9 within a certain number of times or within a certain time range. By this retransmission, the modulated signal output means 6 fills in the time lag due to the tuning of the reception frequency in the mobile terminal 10 on the receiving side and synchronizes the timing of transmission / reception of the mobile terminal 10 and suppresses transmission of emergency information. , Can improve the transmission of emergency information.

  Next, as shown in FIG. 3A, the base station 100 is out of the radio wave coverage area 100a and cannot communicate with other mobile terminals 10 at all. An operation of the mobile terminal 10b located at a position where the bulletin cannot be received will be described. As shown in FIG. 6, the out-of-radio wave determining means 7 in the portable terminal 10b determines whether the radio wave cannot be received or not (S10). Based on this determination, the reception frequency search means 8 makes an initial setting for the frequency at the search start position in the frequency management table 8a when out of the radio wave range (S11).

  The reception frequency search means 8 checks the state of the search target frequency in the frequency management table 8a (S12). Based on this check, the reception frequency search means 8 determines whether an FM signal is being received at this search target frequency (S13). Based on this determination, when the FM signal is being received, the reception information storage unit 3 temporarily stores the character information included in the FM signal received by the modulation signal reception unit 2 in an e-mail format. (S14). The handling in this e-mail format can improve the reliability of information acquisition, information retention, and visibility.

  Further, if the FM signal has not been received according to the determination at S13, the reception frequency search means 8 determines whether all the frequencies registered in the frequency management table 8a have been searched (S15). When the reception frequency search means 8 has searched all the frequencies according to this determination, the reception frequency search means 8 performs the processes after S11 again. The reception frequency search means 8 sets the next search position in the frequency management table 8a when all frequencies have not been searched by this determination (S16). The reception frequency search means 8 performs again the same processing as that after S12 based on the set search position.

  The portable terminal 10b processes the emergency bulletin received as the FM signal in the same manner as in FIG. Thus, as shown in FIG. 3 (b), the portable terminal 10b can receive the emergency bulletin as an FM signal by receiving the FM signal by the reception frequency search means 8, and the radio wave condition from the base station is poor. Even a portable terminal in a location can enjoy a push-type information service such as disaster information.

  The frequency changing unit 9 excludes the same frequency as the FM signal received in S14 in S8 described in FIG. 4 based on the frequency management table 8a, and transmits the FM signal. The frequency can also be set. Due to this exclusion, the frequency changing means 9 transmits emergency early warnings using FM signals of a plurality of frequencies, so that transmission of emergency information can be suppressed and emergency information transmission can be improved.

  The out-of-radio wave determining means 7 waits for reception of the FM signal unconditionally only by determining whether it is out of the radio wave in S10, but according to the set value of the FM reception activation flag indicating the determination of waiting for FM reception. Can also be done. The portable terminal 10 includes FM reception activation flag data 7a for storing the FM reception activation flag. The FM reception activation flag data 7a is read by the out-of-radio wave determining means 7 as shown in FIG.

  As the FM reception activation flag, for example, three setting values “0”, “1”, and “2” can be set as shown in FIG. This set value “0” indicates that the FM reception monitoring operation is stopped. The set value “1” is set as an initial value, and indicates automatic reception in which FM reception monitoring operation is performed upon detection of out of the radio wave range. The set value “2” indicates forced reception in which FM reception monitoring operation is performed regardless of the inside / outside of the radio wave range. The out-of-radio wave determining means 7 waits for reception of an FM signal according to the set value of this FM reception activation flag, and can improve the convenience for the user.

Moreover, in the said embodiment, the emergency early warning converted into the e-mail format was transmitted with FM signal, However, It is not limited to this transmission form, For example, emergency early warning as audio | voice information is made into FM signal. It is also possible to transmit. In addition, since the emergency bulletin is transmitted as an FM signal, the device that receives the FM signal is not limited to the portable terminal shown in the above embodiment, and can also receive the emergency bulletin on FM radio, for example. In the above embodiment, the FM signal is used as a modulation signal. However, the present invention is not limited to this transmission method, and other modulation signals such as an analog modulation AM signal and PM signal can be used. is there.
In addition, the hardware configuration of the mobile terminal according to the present embodiment includes a control unit including a CPU and a memory, a wireless unit that includes a baseband LSI and a wireless circuit, and transmits information to the outside, a display, a speaker, input keys, and the like. It consists of an internal interface unit including a microphone, an external interface unit including a mobile terminal antenna and an FM antenna, and a bus connecting each functional unit.

[Appendix] The following appendices are further disclosed with respect to the embodiments including the above examples.
(Additional remark 1) It is equipped with the portable terminal signal receiving means which receives the portable terminal signal which is relayed at the time of communication between portable terminals, and contains character information and / or audio | voice information, and receives the emergency information delivered at the time of a disaster as the said portable terminal signal In the portable terminal, the modulated signal receiving means for receiving the modulated signal, the received information storage means for storing the portable terminal signal and the character information and / or voice information included in the modulated signal as received information, and the stored Emergency information detection means for detecting delivery of the emergency information based on received information, modulation signal conversion means for converting a mobile terminal signal including the detected emergency information into the modulation signal, and the converted emergency information A portable terminal comprising modulation signal output means for outputting a modulation signal including the signal as a radio wave.

(Supplementary note 2) The mobile terminal according to supplementary note 1, wherein the modulation signal converting means uses an FM signal as the modulation signal.

(Appendix 3) Out-of-radio wave determining means for determining whether the current location is out of the radio wave range where radio waves cannot be received based on the state of the received radio wave, and the frequency for receiving the modulation signal when out of the radio wave range The mobile terminal according to Supplementary Note 1 or Supplementary Note 2, further comprising: a reception frequency search means for searching for.

(Additional remark 4) When the modulation signal containing the said emergency information is received, it has a frequency change means to change the said modulation signal to the frequency different from the said received frequency, The said modulation signal output means is changed the said frequency The mobile terminal according to appendix 1 to appendix 3, wherein the modulated signal is output as a radio wave.

(Supplementary note 5) The mobile terminal according to supplementary notes 1 to 4, wherein the modulation signal output unit repeats the output of the converted modulation signal within a certain time and / or a certain number of times.

(Supplementary note 6) A portable terminal signal receiving step is provided for receiving a portable terminal signal including character information and / or voice information relayed during communication between portable terminals, and receiving emergency information distributed in the event of a disaster as the portable terminal signal. In the portable terminal control method, a modulated signal receiving step for receiving a modulated signal, a character information storing step for storing character information and / or voice information included in the portable terminal signal and the modulated signal as received information, and the storage An emergency information detecting step for detecting the delivery of the emergency information based on the character information that has been made, a modulation signal converting step for converting the mobile terminal signal including the detected emergency information into the modulated signal, and the converted emergency A mobile terminal control method comprising: a modulation signal output step of outputting a modulation signal including information as a radio wave.

(Supplementary note 7) The mobile terminal control method according to supplementary note 6, wherein the modulation signal conversion step uses an FM signal as the modulation signal.

(Appendix 8) Out-of-radio wave determining step for determining whether the current location is out of the radio wave range where radio waves cannot be received based on the state of the received radio wave, and the frequency for receiving the modulation signal when out of the radio wave range The mobile terminal control method according to Supplementary Note 6 or Supplementary Note 7, comprising a reception frequency search step of searching for.

(Supplementary note 9) When a modulated signal including the emergency information is received, a frequency changing step of changing the modulated signal to a frequency different from the received frequency is provided, and the modulated signal output step is configured to change the frequency. 9. The mobile terminal control method according to appendix 6 to appendix 8, wherein the modulated signal is output as a radio wave.

(Supplementary note 10) The mobile terminal control method according to supplementary notes 6 to 9, wherein the modulation signal output step repeats the output of the converted modulation signal within a certain time and / or within a certain number of times.

(Supplementary note 11) The mobile terminal signal receiving means for receiving a mobile terminal signal including character information and / or voice information relayed during communication between mobile terminals is made to function as a computer, and emergency information distributed at the time of disaster is stored in the mobile In a mobile terminal control program received as a terminal signal, a modulation signal receiving means for receiving a modulated signal, character information storage means for storing character information and / or voice information included in the mobile terminal signal and the modulated signal as received information, Emergency information detection means for detecting delivery of the emergency information based on the stored character information, modulation signal conversion means for converting a mobile terminal signal including the detected emergency information into the modulation signal, the converted emergency A portable terminal control program for causing a computer to function as modulation signal output means for outputting a modulation signal including information as radio waves.

(Supplementary note 12) The portable terminal control program according to supplementary note 11, wherein the modulation signal converting means uses an FM signal as the modulation signal.

(Appendix 13) Out-of-radio wave determining means for determining whether the current location is out of the radio wave range where radio waves cannot be received based on the state of the received radio wave, and a frequency for receiving the modulation signal when out of the radio wave range The portable terminal control program according to Supplementary Note 11 or Supplementary Note 12, comprising reception frequency search means for searching.

(Supplementary note 14) When a modulated signal including the emergency information is received, a frequency changing unit is provided for changing the modulated signal to a frequency different from the received frequency, and the modulated signal output unit is configured to change the frequency. 14. The portable terminal control program according to appendix 1 to appendix 13, wherein the modulated signal is output as a radio wave.

(Supplementary note 15) The mobile terminal control program according to supplementary notes 11 to 14, wherein the modulation signal output means repeats output of the converted modulation signal within a certain time and / or a certain number of times.

The block diagram which shows the structure of the portable terminal which concerns on the 1st Embodiment of this invention. Example of data layout and stored data of portable terminal according to first embodiment of the present invention 1 is an overall configuration diagram centering on a mobile terminal according to a first embodiment of the present invention. The flowchart of the portable terminal which concerns on the 1st Embodiment of this invention Flowchart for determining the transmission frequency of the mobile terminal according to the first embodiment of the present invention. The flowchart of FM signal reception of the portable terminal which concerns on the 1st Embodiment of this invention. The block diagram which added FM reception starting flag data of the portable terminal which concerns on the 1st Embodiment of this invention, and the setting value example of FM reception starting flag data

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Portable terminal 10a, 10b Portable terminal 10A, 10B Portable terminal 1 Portable terminal signal receiving means 2 Modulated signal receiving means 3 Received information storage means 3a Emergency information table 4 Emergency information detecting means 5 Modulated signal converting means 6 Modulated signal output means 7 Radio wave Out-of-service determining means 7a FM reception activation flag data 8 Reception frequency searching means 8a Frequency management table 9 Frequency changing means 100 Base station

Claims (7)

In a portable terminal that includes portable terminal signal receiving means that receives a portable terminal signal that is relayed during communication between portable terminals and that includes text information and / or voice information, and that receives emergency information distributed during a disaster as the portable terminal signal ,
Modulation signal receiving means for receiving the modulation signal;
Reception information storage means for storing character information and / or voice information included in the portable terminal signal and the modulation signal as reception information;
Emergency information detection means for detecting delivery of the emergency information based on the stored received information;
Modulation signal conversion means for converting the mobile terminal signal including the detected emergency information into the modulation signal;
A portable terminal comprising modulation signal output means for outputting a modulated signal including the converted emergency information as a radio wave.
The mobile terminal according to claim 1,
A portable terminal in which the modulation signal conversion means uses an FM signal as the modulation signal.
In the portable terminal according to claim 1 or 2,
An out-of-radio wave determining means for determining whether the current location is out of a radio wave range where radio waves cannot be received based on the state of the received radio wave;
A mobile terminal comprising reception frequency search means for searching for a frequency for receiving the modulated signal when out of the radio wave range.
In the portable terminal according to claim 1 to claim 3,
When receiving a modulated signal including the emergency information, comprising a frequency changing means for changing the modulated signal to a frequency different from the received frequency,
A portable terminal in which the modulated signal output means outputs the modulated signal with the changed frequency as a radio wave.
The portable terminal according to claim 1, wherein:
A portable terminal in which the modulation signal output means repeats output of the converted modulation signal within a certain time and / or within a certain number of times.
A portable terminal control that includes a portable terminal signal receiving step that receives a portable terminal signal that is relayed during communication between portable terminals and that includes text information and / or voice information, and that receives emergency information distributed during a disaster as the portable terminal signal. In the method
A modulated signal receiving step for receiving the modulated signal;
A character information storage step of storing character information and / or voice information included in the mobile terminal signal and the modulation signal as received information;
An emergency information detection step of detecting delivery of the emergency information based on the stored character information;
A modulation signal converting step for converting the mobile terminal signal including the detected emergency information into the modulation signal;
A mobile terminal control method comprising: a modulated signal output step of outputting a modulated signal including the converted emergency information as a radio wave.
The mobile terminal signal receiving means for receiving the mobile terminal signal including character information and / or voice information relayed during communication between the mobile terminals is made to function as a computer, and emergency information distributed at the time of disaster is received as the mobile terminal signal. In the mobile terminal control program to
Modulated signal receiving means for receiving the modulated signal;
Character information storage means for storing character information and / or voice information included in the portable terminal signal and the modulation signal as received information;
Emergency information detecting means for detecting delivery of the emergency information based on the stored character information;
Modulation signal conversion means for converting the mobile terminal signal including the detected emergency information into the modulation signal;
A portable terminal control program for causing a computer to function as modulation signal output means for outputting a modulated signal including the converted emergency information as a radio wave.