JP4679346B2 - Mobile communication terminal device and program - Google Patents

Description

  The present invention relates to a portable communication terminal apparatus and a program provided with a position notification function for notifying its own position.

Conventionally, mobile communication terminal devices (mobile phone devices) have come to be used as crime prevention bells to prevent crimes by generating an alarm sound when an emergency button is operated. In addition, in a mobile phone device having a GPS (Global Positioning System) reception function, for example, a technique is known in which a current position is received and transmitted together with an image of the surrounding area in an emergency mode. (See Patent Document 1). In addition, a technique is known in which the current location received and acquired when an emergency occurs, personal information (name, address, etc.), a captured image at that time, and an emergency message are sent to an email address. (See Patent Document 2).
Japanese Patent Laid-Open No. 2003-078905 JP 2004-355539 A

However, since the technologies of these Patent Documents 1 and 2 are based on the assumption that the power supply is normally turned on, for example, when a violent crime such as robbery or kidnapping occurs, a mobile phone Even if an alarm sound is generated using the device, if the power is cut off (off) by the criminal himself or forcibly from the criminal, the emergency transmission is stopped together with the alarm sound.
The subject of this invention is enabling it to restrict | limit cancellation | release of emergency mode effectively.

The invention described in claim 1 is a portable communication terminal device having a position notification function for notifying its own position, the first mode specifying means for specifying an emergency warning mode for generating an alarm sound, and the specifying means When the main battery removal operation is performed in a state in which the release process for the emergency warning mode specified by is not performed, a component that configures at least the position notification function is switched to a spare battery as a power source of the position notification function also in parts or after the extraction operation of the main battery by maintaining the power supply includes a second mode designating means for designating a emergency call mode to notify its location, and the lower emergency alert mode In the state where the spare battery is used as the power source, the self position is repeatedly notified at a longer time interval than in the state where the main battery is used as the power source .
Further, a program for realizing the main functions shown in the invention described in claim 1 is provided to the computer (the invention described in claim 4 ).

The invention described in claim 1 described above may be as follows. Under the emergency call mode, in order to make the position notification function operable and to make communication functions other than the position notification function inoperable, control power supply to the component parts constituting the communication function (Invention of Claim 2)
The predetermined release processing may be performed when a release operation is performed according to a preset operation procedure or when a call is received from a predetermined transmission source (the invention according to claim 3 ) .

According to the first aspect of the present invention, when a power-off operation is performed in a state where the release process for the designated emergency warning mode is not performed, at least the component unit constituting the position notification function is powered Since the emergency call mode for notifying the user's position is specified even after the power-off operation is maintained by maintaining the power supply, the power supply for the position notification function is provided even if the power-off operation is performed in the emergency alarm mode. For example, the position after the power-off operation can be notified without being noticed by the culprit, and can be used as an effective means at the time of criminal investigation. In this case, if the power supply to the input / output unit is stopped during the power-off operation in the emergency call mode, the alarm power is stopped and the general power-off state is not changed at all. The notification function can be activated as a back process.

According to the invention described in claim 3, in addition to the same effects as those of the invention described in claim 1 or 2 , the predetermined release processing is performed when a release operation is performed according to a preset operation procedure or Since there is an incoming call from a predetermined sender, it is possible to reliably prevent the emergency mode / emergency call mode from being released by a third party such as a criminal.

Example 1
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
This embodiment exemplifies a case where the present invention is applied to a mobile phone device as a mobile communication terminal device, and FIG. 1 is a block diagram showing the overall configuration of a position notification system using the mobile communication terminal device (mobile phone device). It is.
This position notification system includes a mobile phone device 1, a mobile communication network 2, the Internet 3, a personal computer (PC) 4, a GPS satellite 5, and the like. Receive and acquire the current location, repeatedly notify the current location by e-mail to the PC 4 or the mobile phone device 1 of a predetermined destination (for example, family, security company, etc.) via the Internet 3, or move Location registration is performed in a location management database (not shown) on the side of the exchange 22 through the base station 21 constituting the body communication network 2.

FIG. 2 is a block diagram showing basic components of the mobile phone device 1.
This cellular phone device 1 receives and acquires its current position by “GPS reception function”, notifies the current position to a predetermined destination by e-mail, or registers the position on the exchange 22 side through the base station 21 It has a “position notification function”. Here, the CPU 101 is a central processing unit that controls the overall operation of the cellular phone device in accordance with various programs in the storage unit 102. The storage unit 102 is a non-volatile memory (internal memory), and includes, for example, a flash memory, and has a program area and a data area. The program area corresponds to an operation procedure shown in FIG. 3 to be described later. A program for realizing the present embodiment is stored. Further, in the data area of the storage unit 102, for example, an address book (not shown) for storing and managing e-mail addresses and the like is provided.

  The recording medium 103 is a detachable portable memory that supplies photographed image data, various types of data, and programs to the outside. The recording medium 103 includes, for example, smart media and an IC card. The memory 104 is an internal memory having a work area, and includes, for example, a DRAM (Direct Random Access Memory), an SDRAM (Synchronous DRAM), or the like. The telephone communication unit 105 captures a signal from the reception side of the transmission / reception duplexer connected to the antenna 105 </ b> A and demodulates it into a reception baseband signal, and then outputs audio data from the audio speaker 106. In addition, the telephone communication unit 105 encodes the audio data input from the audio microphone 107 into a transmission baseband signal, and then provides the transmission baseband signal to the transmission side of the transmission / reception duplexer for transmission from the antenna 105A.

  On the other hand, the display data received and acquired via the telephone communication unit 105 through the Internet connection is given to the main display unit 108 such as an LCD (liquid crystal display) and displayed. The main display unit 108 displays character information, various messages, and the like with high quality. In addition to the main display unit 108, a sub display unit 109 is provided on the back side of the apparatus main body, and the current date and time, Simple messages, icons, etc. are displayed. The key operation unit 110 includes various keys or buttons such as a power button PW, an emergency button UN, and an emergency release button RT described later, and performs dial input, character input, command input, and the like. Processing according to the key input signal from 110 is executed.

  The power button PW is a power button for switching ON / OFF (ON / OFF) of the main power source (main battery). The emergency button UN is used to generate and output a loud alarm sound for repelling criminals such as robbery, stalking, and kidnapping, and to notify a predetermined destination by e-mail via the Internet 3. The CPU 101 switches to the emergency mode in response to the operation of the emergency button UN. In this case, the CPU 1011 performs a process of repeatedly notifying a predetermined destination at a predetermined time interval in addition to the generation of an alarm sound as an emergency process corresponding to the emergency mode.

  The emergency mode is an emergency call mode for notifying the user of his / her location along with an emergency alert mode for generating an alarm sound. The release of the emergency mode is performed by a sender (for example, a family member, a security company, etc.) who has notified the current location by email. The call is made on condition that a call (call) or e-mail is received from. The notification unit 111 is provided with a notification speaker such as an incoming notification, an LED (light emitting diode), and a vibration motor, and performs an incoming notification when a call / mail is received or generates and outputs an alarm sound in the above emergency. It is also driven during notification.

  The GPS receiver 112 uses the GPS satellite 5 and the ground base station 21 to receive and acquire the current position (longitude / latitude information) strictly measured from the difference in arrival times of radio waves from the plurality of GPS satellites 4. In the emergency mode described above, the CPU 101 notifies an emergency mail to a predetermined destination of the current position obtained by the GPS receiving unit 112. The emergency mail includes “name”, “emergency message”, etc. in addition to the “current position”, and has an email content that can reliably convey that an emergency has occurred (hereinafter the same). In this embodiment, the GPS receiving unit 112 is used. However, the current position may be measured based on the difference in the arrival time of radio waves with respect to a plurality of terrestrial stations (base stations) 21 or the positional relationship.

  The power supply unit 113 includes a main battery (main battery) MB and a spare battery (sub-battery) SB that are detachably mounted. The CPU 101 supplies power to the power supply unit 113 in response to a power ON / OFF operation. Give ON / OFF signal. In this case, when the power is turned on, power is supplied to each part (each component part) constituting the mobile phone device to turn on each function. When the power is turned off, it is determined whether or not the emergency mode is described above. In the mode, this power-off operation is invalidated. In other words, as described above, the emergency mode is canceled when a call / mail is received from a predetermined source, and even if a power OFF operation is performed, the operation is invalidated and the emergency mode is not canceled. I have to.

   Next, the operation concept of the cellular phone device 1 in this embodiment will be described with reference to the flowchart shown in FIG. Here, each function described in this flowchart is stored in the form of a readable program code, and operations according to the program code are sequentially executed. In addition, the operation according to the above-described program code transmitted via the transmission medium can be sequentially executed. In other words, in addition to the recording medium, an operation peculiar to this embodiment can be executed by using a program / data supplied externally via a transmission medium.

FIG. 3 is a flowchart showing the operation of the mobile phone device 1 that is started in response to a power-on operation.
First, in response to a power-on operation by the power button PW, the CPU 101 gives a power-on signal to the power unit 113 to start power supply to each unit constituting the mobile phone device 1 and turn on each function. Set (step A1). Then, the CPU 101 makes a location registration response with the nearby base station 21 while operating the telephone communication unit 105 to transmit radio waves from the antenna 105A (step A2). As a result, the position of the base station 21 with the strongest radio wave is registered in the database on the exchange 22 side as the current position of itself (mobile phone device).

  Here, the CPU 101 checks whether there is an incoming call or mail (step A3). If there is an incoming call or mail, the CPU 101 checks whether there is an “emergency flag” indicating the emergency mode (step A3). A4) If it is not the emergency mode now (NO in step A4), the routine proceeds to general incoming call response processing (generation of ringing tone / vibration notification) (step A8). Then, the process proceeds to step A9 to check whether or not a predetermined time (position registration response time t1) has elapsed since the previous position registration. If the position registration response time t1 has not elapsed, the process returns to step A3. When time t1 has elapsed since the previous position registration (YES in step A9), a position registration response similar to the above is executed (step A10).

 If there is no incoming call / mail (NO in step A3), it is checked whether or not the key / button is operated (step 11). If any operation is performed, the power is turned off by the power button PW (step A12). Whether the button is UN or not is checked (step A14). If the operation is other than the power button PW and the emergency button UN (NO in step A14), processing corresponding to the operation key / button (for example, transmission processing, mail creation processing, etc.) is executed (step A17). When the emergency button UN is operated (YES in step A14), for example, in order to fight off criminals such as robbery, stalker, kidnapping, and the like, the alarm unit 111 starts generating a loud alarm sound (step A15). An “emergency flag” is set to indicate that the mode has been switched to the emergency mode (step A16). Then, it returns to step A9 and a location registration response is performed according to progress of location registration response time t1.

  On the other hand, when the key / button is not operated (NO in step A11), it is checked based on the “emergency flag” whether it is in the emergency mode (step A18). Returning, if it is the emergency mode, it is checked whether or not a predetermined time (mail transmission time Tm) has passed since the previous emergency mail transmission (step A19). Here, when the elapse of the e-mail transmission time Tm is detected, the current position is received and acquired from the GPS receiving unit 112 (step A20), and the e-mail address of the other party determined in advance as an emergency contact is read. An emergency mail including the location is transmitted to the PC 4 or the cellular phone device 1 via the Internet 3 to warn of the occurrence of an emergency (step A21). Thereafter, the CPU 101 repeatedly transmits an emergency mail every time the mail transmission time Tm elapses.

  Further, when the power OFF operation is performed by the power button PW (YES in Step A12), it is checked whether the emergency mode is in effect based on the “emergency flag” (Step A13), and the power OFF operation in the emergency mode is performed. If there is, the power-off operation is invalidated and the process returns to step A9. As described above, the emergency mode is not canceled by the power OFF operation, and the emergency mail is repeatedly transmitted with the generation of the alarm sound. If it is a power-off operation other than in the emergency mode (YES in step A12, NO in step A13), the process proceeds to a general power-off process, and power supply to each part constituting the mobile phone device 1 is stopped.

  Here, when an incoming call or incoming mail is detected in the emergency mode (YES in steps A3 and A4), it is determined whether or not this transmission source is a predetermined transmission source set in the data area of the storage unit 102. Check (step A5). In this case, the predetermined transmission source is arbitrarily set in advance, and is not limited to the emergency mail transmission destination, but may be other than that. If the incoming call is not from a predetermined source, the process proceeds to the above incoming call response process (step A8). On the condition that the incoming call is from the predetermined source, an alarm sound is issued to cancel the emergency mode. While stopping (step A6), after resetting the “emergency flag” (step A7), the process returns to step A9.

  As described above, in this embodiment, the CPU 101 generates an audible alarm from the notification unit 111 and performs a predetermined operation in an emergency mode in which its own position acquired from the GPS reception unit 112 is notified from the telephone communication unit 105 via the Internet. Since the emergency mode is canceled on the condition that there is an incoming call from a predetermined source, it is possible to effectively limit the cancellation of the emergency mode. In other words, the emergency mode cannot be canceled until an incoming call is received from a predetermined sender. For example, if a violent crime such as robbery or kidnapping occurs, the emergency mode will be canceled even if the criminal performs the release operation. Can be prevented.

  In this case, since the user's position is repeatedly notified at predetermined time intervals in the emergency mode, the notification of the position can be continued until the emergency mode is canceled, which can be used as a powerful means for criminal investigations. It becomes possible. Also, in emergency mode, the alarm sound continues to be generated until the emergency mode is canceled when there is an incoming call from a predetermined sender, so the alarm sound can continue to be sounded until the emergency mode is canceled. Can be dissipated.

In addition, the emergency mode is canceled in response to an incoming call from a predetermined source in the emergency mode, but when the power OFF operation is performed in the emergency mode, the power OFF operation is invalidated. The release of the emergency mode can be effectively limited. In other words, the emergency mode cannot be canceled until there is an incoming call from a predetermined sender. For example, if a violent crime such as a burglary or kidnapping occurs, the emergency mode is not activated even if the criminal performs a power-off operation. It can be prevented from being released.
(Example 2)

A second embodiment of the present invention will be described below with reference to FIGS.
In the first embodiment described above, when the power OFF operation is performed in the emergency mode, the power OFF operation is invalidated. However, in the second embodiment, the emergency mode is disabled. In the case where the power OFF operation is performed, the component parts constituting the position notification function are notified of their positions even after the power OFF operation by maintaining the power supply. In the second embodiment, the emergency mode is canceled when an incoming call is received from a predetermined transmission source, and the emergency mode is canceled according to the operation of the emergency release button RT.
Here, the same or the same names in both embodiments are denoted by the same reference numerals, the description thereof will be omitted, and the following description will focus on the features of the second embodiment. .

   In the second embodiment, when the power OFF operation is performed in the emergency mode, the power supply to the input / output units such as the display units 108 and 109 and the key operation unit 110 is stopped. In addition, in order to enable the position notification function, the telephone communication unit 105 and the GPS receiving unit 112 are continuously supplied with power. Further, when the main battery (main battery) MB is removed in the emergency mode, the backup battery (sub-battery) SB is used as a backup power source for the telephone communication unit 105 to enable the position registration function. We are trying to supply. The battery removal sensor 114 shown in FIG. 2 is configured by a micro switch, an optical sensor, and the like, and detects that the main battery MB has been removed from the apparatus main body, and gives a detection signal to the CPU 101.

FIG. 4 is a flowchart showing the operation of the cellular phone device 1 that is started in response to a power-on operation in the second embodiment. In step A11 of FIG. 3, it is determined that “operation is present (YES)”. It is the flowchart which showed the operation | movement which replaces above-mentioned step A12-A17 in the case.
In the second embodiment, the operations other than the above-described steps A12 to A17 are the same as steps A1 to A11 and A18 to A21 in FIG.

  First, the CPU 101 determines whether or not a key / button has been operated in a state where there is no incoming call / email, and if any operation is performed, whether the power is turned off by the power button PW (step B1) or the emergency button UN. Whether or not the emergency release button RT is operated (step B15). If a button other than the power button PW, the emergency button UN, or the emergency release button RT is operated (NO in step B15), processing corresponding to the operation key / button (for example, outgoing call processing, mail creation processing, etc.) is executed. However, when the emergency button UN is operated (YES in step B11), the emergency alarm mode is set (step B12), and an alarm sound is generated and output (step B13). "Is set (step B14). Then, the process returns to step A9 in FIG.

  When a power-off operation is performed by the power button PW (YES in Step B1), it is checked whether the emergency mode is in effect based on the “emergency flag” (Step B2). If the power is turned off when the emergency mode is released (NO in step B2), a power OFF signal is given to the power supply unit 113, and all other functions except the power ON function and the time counting function are turned OFF. Therefore, after the power supply to the input / output units such as the display units 108 and 109, the key operation unit 110, and the notification unit 111 is stopped (step B9), the power-on operation is waited (step B10).

  On the other hand, if the power OFF operation is performed under the emergency mode, the emergency call mode is set (step B3), and a special power OFF signal is given to the power supply unit 113 to stop the power supply to each unit (step B4). ). In this case, the power supply to the input / output unit is stopped all at once. However, in order to enable the GPS reception function and the position notification function in addition to the power ON function and the time measurement function, the telephone communication unit 105 and the GPS reception unit 112 have The power supply is continued as it is even after the power is turned off. Under this emergency mode, power is supplied to the telephone communication unit 105 in order to enable the position notification function among various communication functions and to disable the telephone function (call function) and mail reception function. The telephone function and the mail receiving function are turned off (step B5).

  Then, it is checked whether or not a predetermined time (position registration response time t2) has elapsed since the previous position registration (step B6). In this case, the position registration response time t1 in the power-on state and the position registration response time t2 in the power-off state have a relationship of t2> t1. This is set in consideration of battery consumption or the like, but if t2 is extremely long as t2 >> t1, the notification interval becomes too long, and is set to about 1.5 to 2 times t1. Here, if the position registration response time t2 has not elapsed, the process proceeds to step B8, but when the time t2 has elapsed since the previous position registration, the CPU 101 operates the telephone communication unit 105 to transmit radio waves from the antenna 105A. In response to this, a location registration response is made with the nearby base station 21 (step B7). As a result, the position of the base station 21 with the strongest radio wave is registered as its own position on the exchange 22 side. Thereafter, the CPU 101 repeatedly executes the location registration response every time the location registration response time t2 elapses until the power ON operation is performed.

  When the emergency release button RT is operated (YES in step B15), it is checked whether a correct operation has been performed based on the operation status at that time (step B16). For example, check whether the emergency release button RT has been pressed three times in succession or whether the emergency release button RT and other buttons have been pressed at the same time, such as pressing the emergency release button RT and other buttons at the same time. If it is not an operation, the process returns to step A9 in FIG. 3, but the alarm sound is stopped to cancel the emergency mode on condition that the correct release operation has been performed (step B17), and the “emergency flag” is reset. (Step B18). Thereafter, the process returns to step A9 in FIG.

FIG. 5 is a flowchart showing the operation of the mobile phone device 1 that is started when the main battery MB is removed.
First, when the CPU 101 confirms that the main battery MB has been removed by the detection signal from the battery removal sensor 114, the CPU 101 starts backup using the spare battery (sub-battery) SB as a power source (step C1), and sets the “emergency flag”. The presence or absence is checked (step C2). If the main battery MB is removed while the emergency mode is released (NO in step C2), the process ends at this point.

  If the main battery MB is removed in the emergency mode (YES in step C2), the CPU 101 controls the power supply unit 113 to enable the position registration function to operate from the sub battery SB. The power supply to 105 is started (step C3). Then, it is checked whether or not a predetermined time (position registration response time t2) has elapsed since the previous position registration (step C4), and the system waits until the response time t2 elapses. A position registration response is made with the nearby base station 21 while operating the communication unit 105 to transmit radio waves from the antenna 105A (step C5). Thereafter, a location registration response is performed each time the response time t2 elapses.

  As described above, in this second embodiment, the CPU 101 notifies the user's position by continuing the power supply to the telephone communication unit 105 and the GPS receiving unit 112 when the power is turned off in the emergency warning mode. Since the notification mode is specified, the power supply to the position notification function is not shut down even if the power OFF operation is performed in the emergency alarm mode. For example, the position after the power OFF operation is notified without being noticed by the criminal. It can be used as a powerful means during criminal investigations. In this case, the power supply to the input / output unit is stopped when the power is turned off in the emergency call mode, so the alarm notification is stopped and the general power off state is not changed at all. It can be operated as a backside treatment.

In this case, when the emergency release button RT is pressed three times in succession, or when the emergency release button RT and another button are pressed at the same time, the release operation is performed according to a preset operation procedure, or a predetermined Since the emergency call mode is canceled when there is an incoming call from the sender, it is possible to reliably prevent the release by the criminal.
In addition, when the main battery MB is removed in the emergency mode, the CPU 101 switches to the sub battery SB as the power source for the position notification function. For example, not only the power off operation but also the main battery MB The position can be notified even if the mark is removed.

  In addition, since the position of the base station 21 is registered on the exchange 22 side through the base station 21 while the power is OFF, the position (arrangement area) of the base station 21 having the strongest radio wave is registered on the exchange 22 side as the self position. It is possible to use a location information service (location tracking service) using the location of the base station 21. In this case, any member who has a contract for using the location tracking service can receive the service anytime and anywhere. Here, since the CPU 101 repeats the position registration every predetermined time, it becomes possible to track the position, and the position registration response when the power is OFF compared to the position registration response time t1 when the power is ON. Since the time t2 is set to be long, it is possible to perform location registration while suppressing power consumption after the power is turned off. Further, the CPU 101 controls the power supply to the telephone communication unit 105 in order to make the position notification function out of various communication functions operable in the emergency mode and to make the call function and the mail reception function inoperable. Thus, after the power is turned off, the battery can be saved by not using the extra function.

  In each of the embodiments described above, the emergency mode is switched to the emergency mode by operating the emergency button UN. However, the emergency mode may be switched by remote operation via the Internet or the like. In each of the embodiments described above, an emergency mail is transmitted to a predetermined destination in the emergency mode. However, it may be possible to arbitrarily set whether or not to transmit an emergency mail, and location registration is also possible in the emergency mode. You may make it perform only.

In the second embodiment described above, the position registration response time t2 in the power OFF state is a fixed value, which is about 1.5 to 2 times the position registration response time t1 in the power ON state. t2 may be arbitrarily changed as necessary.
In addition, the present invention is not limited to the mobile phone device, and can be similarly applied to a mobile communication terminal device such as a PDA, an electronic camera, an electronic watch, and a music player with a communication function.

The block diagram which showed the whole structure of the position notification system using a mobile communication terminal device (mobile telephone apparatus). FIG. 3 is a block diagram showing basic components of the mobile phone device 1. The flowchart which showed operation | movement of the mobile telephone apparatus 1 started execution in response to power ON operation. The operation of the cellular phone device 1 that is started in response to a power-on operation in the second embodiment is shown. When it is determined that “operation is present (YES)” in step A11 of FIG. 3, the above-described steps A12 to A17 are performed. The flowchart which showed the operation | movement replaced with. In 2nd Example, the flowchart which showed the operation | movement of the mobile telephone apparatus 1 started to be executed when the main battery MB was extracted.

Explanation of symbols

1 Mobile phone device 2 Mobile communication network 3 Internet 4 PC
5 GPS satellite 21 base station 22 exchange 101 CPU
DESCRIPTION OF SYMBOLS 102 Memory | storage part 105 Telephone communication part 108 Main display part 110 Key operation part 111 Notification part 112 GPS receiving part 113 Power supply part 114 Battery removal sensor PW Power button UN Emergency button
MB Main battery SB Sub battery

Claims (4)

A mobile communication terminal device having a position notification function for notifying its own position,
First mode designating means for designating an emergency alert mode for generating an alarm sound;
When the operation for removing the main battery is performed in a state where the release process for the emergency warning mode designated by the designation means is not performed, the position notification function is switched to a spare battery as a power source, and at least the position notification function is configured. A second mode designating unit for designating an emergency call mode for notifying the position of the component unit even after the operation of removing the main battery by maintaining power supply;
Equipped with,
In the state of using the spare battery as a power source under the emergency warning mode, the position of the self battery is repeatedly notified at a time interval longer than the state of using the main battery as a power source.
A portable communication terminal device. Under the emergency call mode, in order to make the position notification function operable and to make communication functions other than the position notification function inoperable, control power supply to the component parts constituting the communication function To
The mobile communication terminal apparatus according to claim 1 . The predetermined release process is a case where a release operation is performed in a preset operation procedure or when there is an incoming call from a predetermined source.
The portable communication terminal device according to claim 1 or 2 . Against the computer,
A function to specify an emergency alarm mode for generating an alarm sound;
When the main battery removal operation is performed in a state where the release processing for the emergency warning mode has not been performed , the power supply for the position notification function is switched to a spare battery, and at least the component unit constituting the position notification function A function for designating an emergency call mode for notifying the user's position even after the operation of removing the main battery by maintaining power supply,
Realized ,
A program for repeatedly notifying the self position at a longer time interval in a state where the spare battery is used as a power source than in a state where the main battery is used as a power source .

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