JP2007266814A - Mobile terminal unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal unit, having a mounted location measurement function of informing a user of a communicable time being calculated from the residual capacity of a secondary battery in correspondence with the place of the user, in the mobile terminal unit operated by the secondary battery. <P>SOLUTION: The mobile terminal unit for detecting the longitude and latitude of the position of the self-mobile unit terminal using a GPS signal calculates the communicable time at the present place, from: the longitude and latitude information of the self-mobile unit terminal position by the GPS signal; the longitude and latitude information of a base station position received from the base station; a distance data between the base station and the self-mobile terminal unit position; a transmission output current data stored in the past; and the residual capacity of the secondary battery, so as to avoid the possibility of occurrence of a communication break because of the shortage of the residual battery capacity. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile terminal device that uses a secondary battery, and more particularly to a mobile terminal device that appropriately notifies the available call time according to the remaining capacity of the secondary battery.

  In recent years, mobile terminals such as mobile phones and PHS are equipped with functions such as mail, camera, video phone, and GPS, and the penetration rate is increasing year by year. Such a mobile terminal device uses a rechargeable secondary battery as its power source, and the mobile terminal device is provided with a remaining battery capacity so that most terminals can recognize the user with respect to the charging standard. It has a function to display on the LCD.

  However, the remaining capacity of the secondary battery that can be recognized by the user is simply a display of the remaining capacity level in which the remaining battery capacity is displayed in about three levels from the fully charged state to the zero level state. It is not a remaining capacity display that considers how much the device can be used in the future.

  For this reason, some users may suddenly become unusable due to a shortage of remaining battery capacity when they are talking on the phone because they are still sufficiently usable.

  In order to solve this problem, conventionally, methods disclosed in Patent Document 1 and Patent Document 2 are known as a method for notifying a callable time of a mobile terminal device having a battery remaining capacity detection function.

FIG. 9 and FIG. 10 show the configuration of a conventional method for notifying the callable time of a mobile terminal device having a battery remaining capacity detection function. In the invention shown in FIG. 9, the call measured in advance for each mobile terminal device. In the invention described in FIG. 10, the callable time is calculated from the remaining battery capacity and compared with the average call time. It consists of a function that notifies the remaining possible call time.
JP-A-6-6306 JP 2000-196714 A

  However, in the method for notifying the available call time of the mobile terminal device having the battery remaining capacity detection function described in Patent Document 1, the mobile terminal device is moved individually before shipping the mobile terminal device to the market in order to notify the available call time. There is a problem in that current consumption during a call of the terminal device must be measured and stored in the storage device.

  Further, in the callable time notification method of the mobile terminal device having the battery remaining capacity detection function described in Patent Document 2, the remaining callable time is calculated and notified from the average call time and the remaining battery capacity. When the mobile terminal device is used in a place where the time condition, for example, the distance between the base station and the mobile terminal device is different from the averaged call time condition, there is a problem that a more accurate call time cannot be notified. It was.

  The present invention has been made to solve such a conventional problem, and the mobile terminal device that detects the longitude and latitude of its own mobile terminal position using GPS signals calculates the available call time at the current location. , Longitude and latitude information of own mobile terminal device position detected by GPS, longitude and latitude information of base station position obtained from base station, calculation of distance between own mobile terminal device position and base station, and storage in own mobile terminal device The mobile terminal that can more accurately notify the call time at various mobile locations by calculating the distance data, the transmission output current of the mobile terminal device at the distance, and the remaining capacity of the secondary battery An object is to provide an apparatus.

  The mobile terminal apparatus according to claim 1 of the present invention receives a GPS signal transmitted from a plurality of GPS (Global Positioning System) satellites in a terrestrial cellular system having a plurality of base stations forming a radio area, and receives the received GPS signal. A mobile terminal device having a function of detecting its own longitude and latitude based on the result, and a base station that distributes longitude and latitude information of the base station in the terrestrial cellular system, and received to the user of the mobile terminal device The latitude and longitude information of the position of the own mobile terminal device based on the detected GPS signal, the longitude and latitude information of the base station position received from the base station, the distance data between the base station and the own mobile terminal device position, and the self-memory stored in the past Transmission output current data of the mobile terminal device or estimated transmission of the mobile terminal device for the target distance stored in advance in the storage device of the mobile terminal device From the output current data and the detected remaining capacity of the secondary battery, it has a function of calculating and notifying the available call time at the current location.

  With this configuration, the user using the mobile terminal device can confirm the available call time at the current pumping station from the remaining capacity of the current secondary battery at each location, and has particularly stayed in the past. In a certain place, it is possible to check the more accurate callable time, and when it is determined that the callable time is insufficient, replace it with a spare secondary battery in advance or charge the secondary battery with a charger. Since it can be performed, it is possible to avoid the possibility that the call is suddenly cut off due to insufficient battery capacity.

  The mobile terminal apparatus according to claim 2 of the present invention receives a GPS signal transmitted by a plurality of GPS (Global Positioning System) satellites in a terrestrial cellular system having a plurality of base stations forming a radio area, and receives the received GPS signals. A mobile terminal device having a function of detecting its own longitude and latitude based on the result, and a base station that distributes longitude and latitude information of the base station in the terrestrial cellular system, and the other mobile terminal device having the same function From the stored longitude and latitude information of the mobile terminal device position, the longitude and latitude information of the base station position, the base station-mobile terminal device position distance data, and the transmission output current data of the mobile terminal device between the distances It has a function to obtain and add to the data of its own mobile terminal device.

  With this configuration, a user who uses the mobile terminal device can confirm the more accurate call available time even in the first place by obtaining data of other users having the same function.

  The mobile terminal apparatus according to claim 3 of the present invention receives a GPS signal transmitted by a plurality of GPS (Global Positioning System) satellites in a terrestrial cellular system having a plurality of base stations forming a radio area, and receives the received GPS signal. A mobile terminal device having a function of detecting its own longitude and latitude based on the result, and a base station that distributes longitude and latitude information of the base station by the terrestrial cellular system, A function capable of storing and reading out the location name registered by the user for the longitude and latitude information of the mobile terminal device position, the longitude and latitude information, and the transmission output current data of the own mobile terminal device in the moving terminal device have.

  With this configuration, the user using the mobile terminal device reads the location name having the registered longitude and latitude information from the file stored in the mobile terminal device before moving to the location of the registered location name. The available call time at the registered location can be confirmed from the current remaining capacity of the secondary battery.

  The mobile terminal device of the present invention receives GPS signals transmitted from a plurality of GPS (Global Positioning System) satellites in a terrestrial cellular system having a plurality of base stations forming a radio area, and based on the reception result A mobile terminal device having a function of detecting its own longitude and latitude, and a base station that distributes longitude and latitude information of the base station in the terrestrial cellular system, the GPS signal received and detected for the user of the mobile terminal device The longitude and latitude information of the position of the own mobile terminal apparatus, the longitude and latitude information of the base station position received from the base station, the distance data between the base station and the own mobile terminal apparatus, and the transmission of the own mobile terminal apparatus stored in the past The estimated transmission output current data of the mobile terminal device with respect to the output current data or the target distance previously stored in the storage device of the mobile terminal device. Data and the detected remaining capacity of the current secondary battery to calculate and notify the available call time at the current location. With this configuration, users using mobile terminal devices , In each location, you can check the available call time at each location from the current remaining capacity of the secondary battery, especially in locations where you have stayed in the past. It is possible to check the available call time even before moving, and when it is determined that the call available time is insufficient, replace it with a spare secondary battery in advance or use a charger to charge the secondary battery. Therefore, it is possible to avoid the possibility that the call is suddenly cut off due to insufficient remaining battery capacity.

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

(First embodiment)
First, FIG. 1 shows a schematic block diagram of an example of a terrestrial cellular system according to the first embodiment of the present invention.

  In FIG. 1, a plurality of base stations BS1, BS2,... Are geographically distributed in the service area of the terrestrial cellular system. These base stations BS1, BS2,... Form wireless areas SEL1, SEL2,. These wireless areas SEL1, SEL2,... Are formed such that adjacent cells partially overlap each other.

  The mobile terminal devices MS1, MS2,... Are connected to the base stations via radio channels while moving arbitrarily within the radio areas SEL1, SEL2,... Formed by the base stations BS1, BS2,. As a result, communication is possible.

  As a second generation mobile phone, GSM (Global System for Mobile Communication) is adopted as a second-generation mobile phone in the radio access scheme between the mobile terminal devices MS1, MS2,... And the base stations BS1, BS2,. A code division multiple access (CDMA) method using a spread spectrum communication method adopted as a method or a third generation mobile phone is used.

  Each mobile terminal device MS1, MS2,... Receives GPS signals STsig1, STsig2,... Transmitted by GPS satellites ST1, ST2,. It has a self-position detection function for detecting the current position of the mobile terminal device with high accuracy.

  Next, FIG. 2 shows a schematic block diagram of an example of the mobile terminal apparatus according to the first embodiment of the present invention.

  In FIG. 2, the mobile terminal device of the present invention includes a mobile terminal body 100 and a battery pack 200.

  The mobile terminal body 100 includes a terrestrial cellular system antenna 1, a satellite antenna 2, a cellular system radio unit 3, a GPS receiving unit 4, a control unit 5, a longitude / latitude information storage unit 6, and a base station-self-moving. The inter-terminal distance calculation unit 7, the comparison unit 8, the pseudo correlation data storage unit 9, the output current detection unit 10, the correlation data storage unit 11, the remaining battery capacity detection unit 12, and the callable time calculation unit 13 The notification unit 14, the LCD 15, and the speaker 16, and the battery pack 200 includes a rechargeable secondary battery 21.

  As an operation of each unit, the terrestrial cellular system antenna 1 transmits and receives radio waves in order to perform wireless communication with a base station on the terrestrial cellular system. The satellite antenna 2 receives radio waves of GPS signals transmitted by a plurality of GPS (Global Positioning System) satellites.

  The cellular system radio unit 3 demodulates a signal from the base station received by the terrestrial cellular system antenna 1 or generates a modulated signal from the mobile terminal device in order to perform radio communication with the base station on the cellular system. It transmits using the antenna 1 for terrestrial cellular systems.

  The GPS receiver 4 demodulates GPS signals transmitted by a plurality of GPS (Global Positioning System) satellites received by the satellite antenna 2.

  The control unit 5 controls each block of the mobile terminal body 100.

  The longitude / latitude information storage unit 6 stores the longitude / latitude information of the mobile terminal device detected by the GPS receiving unit 4 and the control unit 5 and the longitude / latitude information of the base station requested and obtained from the base station.

  The base station-own mobile terminal distance calculation unit 7 calculates the distance between the longitudes and latitudes from the longitude and latitude information of the mobile terminal device stored in the longitude and latitude information storage unit 6 and the longitude and latitude information of the base station.

  The comparison unit 8 compares the longitude and latitude information of the current own mobile terminal device position detected by the GPS receiving unit 4 and the control unit 5 with the longitude and latitude information of the own mobile terminal device position stored in the longitude and latitude information storage unit 6, In addition, a comparison between the longitude and latitude information of the current base station in communication and the longitude and latitude information of the base station position stored in the longitude and latitude ellipse storage unit 6, and the base station-own mobile terminal distance calculation unit 7 The calculated distance data is compared with the distance data stored in the pseudo correlation data storage unit 9.

  The pseudo correlation data storage unit 9 stores pseudo correlation data of the estimated transmission output current of the mobile terminal apparatus with respect to the assumed distance between the base station and the own mobile terminal apparatus, which is stored in advance in the mobile terminal apparatus as data.

  It is assumed that the same data is input to all the mobile terminal devices as the pseudo correlation data.

  The output current detection unit 10 detects a transmission output current at a power level at which the base station and the mobile terminal device are connected via a radio channel and the mobile terminal device in a communication state transmits in response to a request from the base station.

  The correlation data storage unit 11 includes base station-own mobile terminal distance data calculated by the base station-own mobile terminal distance calculation unit 7, and output current data at the time of transmission of the mobile terminal device detected by the output current detection unit 10. And the base station-own mobile terminal distance calculation unit 7 stores the relationship between the position of the mobile terminal apparatus used when calculating the distance and the longitude / latitude data of the base station position.

  The battery remaining capacity detection unit 12 detects the remaining capacity of the secondary battery 21 at a timing arbitrarily set by the control unit 5.

  The callable time calculation unit 13 compares the remaining capacity of the secondary battery 21 detected by the battery remaining capacity detection unit 12 with the transmission output power data compared with the comparison unit 9 and read from the correlation data storage unit 11 or From the estimated transmission output current data read from the pseudo-correlation data storage unit 9, the possible call time with the remaining capacity of the secondary battery 21 is calculated.

  The notification unit 14 causes the callable time calculated by the callable time calculation unit 13 to operate either the LCD mounted on the mobile terminal device, the speaker, or both at the same time, and gives the user the callable time. Focus.

  Next, an example of the operation of the mobile terminal apparatus according to the first embodiment of the present invention will be described in detail with reference to the flowcharts of FIGS.

  3, 4 and 5 show processing in the mobile terminal apparatus according to the first embodiment of the present invention.

  3, 4, and 5, this process is performed when the mobile terminal device has the current location and the longitude / latitude information of the location of the mobile terminal device and the latitude / longitude of the base station position communicating with the mobile terminal device. This is a process for calculating the distance between the position of the base station and the mobile terminal device from the information, calculating the callable time at the current location, and notifying the user of the callable time.

  In the flowchart, S represents a step.

  3, 4, and 5, when the mobile terminal device is powered on (step S <b> 101), the mobile terminal device communicates with a base station that covers the wireless area of the mobile terminal device. Synchronization is established (step S102). After synchronization is established, the mobile terminal device enters a standby state (step S103).

  Next, GPS signals from a plurality of GPS satellites are received and demodulated, and longitude and latitude information of the position of the mobile terminal device is detected and stored in the longitude and latitude information storage unit 6 shown in FIG. 2 (step S104). Request and obtain the longitude and latitude information of the base station position from the communicating base station, store it in the longitude and latitude information storage unit 6 shown in FIG. 2 (step S105), and the latitude and longitude of the position of the mobile terminal device The base station-own mobile terminal device distance calculation unit 7 shown in FIG. 2 calculates the base station-own mobile terminal device distance from the information and the longitude / latitude information of the base station position (step S106).

  Next, it is determined whether the obtained longitude and latitude information of the base station position is the same as the longitude and latitude information of the base station position stored in the mobile terminal device in the past (step S107).

  If it is determined that the base station position longitude and latitude information obtained from the base station is the same as the information obtained in the past and stored in the mobile terminal device, then the own mobile terminal device location detected in step S104 Is determined to be the same as the longitude and latitude information of the mobile terminal device position detected in the past (step S108).

  If it is determined from step S107 that the base station longitude and latitude information obtained from the base station is different from the information obtained in the past and stored in the mobile terminal device, the location where the mobile terminal device has moved is recognized as the first place to visit. Then, the processing after step S201 is performed.

  If it is determined in step S108 that the longitude and latitude information of the mobile terminal device position detected by the GPS signal is the same as the mobile terminal device longitude and latitude information detected in the past, the correlation data storage unit 11 shown in FIG. From the same longitude and latitude information detected in step S104, the transmission output current of the mobile terminal device detected and stored in the past is read (step S109).

  Next, the remaining capacity of the secondary battery shown in FIG. 2 is detected by the remaining battery capacity detection unit 12 of FIG. 2 (step S110), and the callable time is calculated from the remaining battery capacity and the transmission output current value read in step S109. (Step S111), the user of the mobile terminal device is notified of the call available time (Step S112).

  If it is determined in step S108 that the longitude and latitude information of the position of the mobile terminal device detected by the GPS signal is different from the longitude and latitude information of the mobile terminal device detected in the past, the base station-self-movement calculated in step S106 The transmission output current data related to the distance close to the terminal device position battle distance is read from the pseudo correlation data storage unit 9 shown in FIG. 2 (step S201).

  Next, the remaining capacity of the secondary battery shown in FIG. 2 is detected by the remaining battery capacity detecting unit 12 in FIG. 2 (step S110), and the callable time is calculated from the remaining battery capacity and the transmission output current value read in step S201. (Step S111), and notifies the user of the mobile terminal device of the available call time (Step S112).

  In parallel with the above processing, in the state of step S104, a transmission output current consumed by the mobile terminal device under the power level transmitted at the time of connection with the base station is detected by the output current detection unit 10 shown in FIG. (Step S301), the base station-own mobile terminal device position distance data calculated in Step S106, the detected transmission output current data, the own mobile terminal device position detected and obtained in Steps S104 and S105, and The relationship between the longitude and latitude data of the base station position is stored in the correlation data storage unit 11 shown in FIG. 2 (step S302).

  Next, it is determined whether the distance between the position of the base station and the mobile terminal device calculated in step S106 is the same value as the distance data in the pseudo correlation data stored in the pseudo correlation data storage unit 9 shown in FIG. 2 (step S303). ).

  When it is determined that the distance data calculated in step S106 is the same distance as the pseudo-correlation data distance data, the transmission output current data related to the pseudo-correlation data distance data is detected as the transmission output detected in step S301. The current value is rewritten (step S304), and the pseudo-correlation data used when calculating the available call time in step S201 is changed to data that can calculate the call time more accurately.

  If it is determined that the distance data calculated in step S106 is not the same distance as the distance data in the pseudo correlation data, the process ends.

  Note that the notification to the user in step S112 is either a display on the LCD 15 mounted on the mobile terminal device shown in FIG. 2 or a voice announcement on the speaker 16 shown in FIG. In the display on the LCD 15, the callable time is displayed by a numerical display of the callable time or a display using, for example, a minute bar.

  In the description of the flowchart, the calculation of the callable time is described from the process of turning on the power of the mobile terminal apparatus in step S101. However, after the power of the mobile terminal apparatus is turned on, the process from step S104 to step S104 is performed. The operation up to S114 is repeated, and a process of notifying the user of the available call time is performed.

  As is apparent from the flowcharts of FIGS. 3, 4, and 5, the mobile terminal device according to the embodiment of the present invention can provide an excellent effect in that the user is notified of when the call is available at the current location. .

  As described above, according to the mobile terminal device in the present embodiment, the user using the mobile terminal device checks the available call time at the current location from the remaining capacity of the current secondary battery at each location. In particular, in places where you have stayed in the past, it is possible to check the more accurate callable time, and when it is determined that the callable time is insufficient, the user replaces the battery with a spare secondary battery in advance. Alternatively, since the secondary battery can be charged by the charger, it is possible to avoid the possibility that the call is suddenly cut off due to insufficient battery capacity.

(Second embodiment)
Next, an operation example of the mobile terminal apparatus according to the second embodiment of the present invention will be described in detail with reference to the flowchart of FIG.

  FIG. 6 shows processing in the mobile terminal apparatus according to the second embodiment of the present invention.

  In FIG. 6, this process is performed from another mobile terminal device in which the mobile terminal device has the same function, from the latitude and longitude information of the other mobile terminal device stored in the other mobile terminal device, and from the latitude and longitude information of the base station location. This is a process for obtaining the base station-one mobile terminal device distance data and the transmission-time output current data of other mobile terminal devices between the distances and adding them to the correlation data of the own mobile terminal device.

  Steps S101 to S103 are the same as those in FIG. Accordingly, the detailed description of these will be omitted, and only different points will be described.

  As the operation of FIG. 6, the user of the mobile terminal device calculates the distance data between the base station and the mobile terminal accumulated by the other mobile terminal device, the transmission output current data at the distance, and the distance from the other mobile terminal device. Correlation data storing the relationship between the latitude and longitude data of the mobile terminal device and base station used at the time is obtained (step S401).

  As a method for obtaining the correlation data of the other mobile terminal device, for example, a mail function or an infrared communication function (lrDA) installed in the mobile terminal device is used.

  Next, the own mobile terminal device searches for the correlation data of the obtained other mobile terminal device, and each longitude and latitude information of the mobile terminal device in the correlation data is stored in the own mobile terminal device. It is judged by the comparison part 8 of FIG. 2 whether it is different from the longitude and latitude information (step S402).

  When the obtained longitude and latitude information of the other mobile terminal device position is the same as the longitude and latitude information of the own mobile terminal device position stored in the own mobile terminal device, the same in the correlation data of the other mobile terminal device The longitude / latitude information and data related to the information are deleted (step S501), and the process is terminated (step S406).

  If the obtained latitude and longitude information of the other mobile terminal device position is different from the latitude and longitude information of the own mobile terminal device position stored in the own mobile terminal device, then from the obtained correlation data, Search for the longitude and latitude information of the base station position, and the longitude and latitude information of the base station position stored in the other mobile terminal device in the correlation data is the same as the longitude and latitude information of the base station location stored in the own mobile terminal device 2 is determined by the comparison unit 8 shown in FIG. 2 (step S403).

  If it is determined in step S403 that the longitude and latitude information of the base station position stored in the other mobile terminal device is different from the longitude and latitude information of the base station position stored in the own mobile terminal device, The correlation data of the mobile terminal device is stored in the correlation data storage unit 11 of the own mobile terminal device (step S601), and the process ends (step S406).

  When it is determined that the longitude and latitude information of the base station position stored in the other mobile terminal apparatus is the same as the longitude and latitude information of the base station position stored in the own mobile terminal apparatus, the base station position stored in the own mobile terminal apparatus The comparison unit 8 shown in FIG. 2 determines whether or not the distances are different by comparing the base station-one mobile terminal listening distance data with the base station-one mobile terminal distance data stored in the other mobile terminal device. (Step S404).

  It is assumed that the distance criterion is arbitrarily set in the mobile terminal device.

  If it is determined from step S404 that the base station-to-mobile terminal distance data stored in the mobile terminal device and the base station-to-mobile terminal distance data stored in the other mobile terminal device are the same or close to each other Then, correlation data related to the base station-own mobile terminal distance data of the other mobile terminal device is deleted (step S701), and the process is terminated (step S406).

If it is determined that the base station-mobile terminal distance data stored in the mobile terminal device and the base station-mobile terminal distance data stored in the other mobile terminal device are different distances, the other mobile terminal device Base station-own mobile terminal distance data related to the longitude / latitude information of the base station, output current data during transmission at the distance, and the latitude / longitude of the mobile terminal device and base station used to calculate the distance The data is added to the correlation data stored in the correlation data storage unit 11 of the own mobile terminal device. (Step S405)
As is clear from the flowchart of FIG. 6, the mobile terminal device according to the embodiment of the present invention receives data necessary for calculating the callable time from another mobile terminal device having the same function. Excellent effect in terms of adding to the data.

  As described above, according to the mobile terminal device in the present embodiment, a user who uses the mobile terminal device obtains data of other users equipped with the same function, so that a more accurate call can be made even in the first place. The possible time can be confirmed.

(Third embodiment)
Next, an example of the operation of the mobile terminal apparatus according to the third embodiment of the present invention will be described in detail with reference to the flowcharts of FIGS.

  7 and 8 show processing in the mobile terminal apparatus according to the third embodiment of the present invention.

  7 and 8, the process of FIG. 7 is that the user registers a location name for the longitude and latitude information of the own mobile terminal device detected by the GPS signal, and the location name and the longitude and latitude information of the own mobile terminal device are stored as a file. FIG. 8 is a process for storing transmission output current data of the own mobile terminal device. The process in FIG. 8 is performed after the user reads the location name of the planned travel location from the file stored in the mobile terminal device. This is a process for calculating the available call time at the place from the current remaining capacity of the secondary battery and making it known to the user.

  Before this process is executed, the processes from step S101 to step S112 shown in FIGS. 3, 4, and 5 are executed, but detailed description thereof will be omitted.

  As the operation of FIG. 7, after the mobile terminal device calculates the callable time at the current location and notifies the user (step S112), the mobile terminal device position detected by the GPS signal used when calculating the callable time Is determined to be new longitude / latitude information that is not stored in the longitude / latitude information storage unit 6 shown in FIG. 1 of the mobile terminal device (step S801).

  From step S801, it is determined that the longitude / latitude information of the own mobile terminal device used when calculating the call time is new longitude / latitude information not stored in the longitude / latitude information storage unit 6 shown in FIG. 1 of the own mobile terminal device. If so, the user is notified of the new longitude and latitude information, and the user is notified of the location input for the new longitude and latitude information (step S802).

  Next, when the user inputs the location to the mobile terminal device for the new longitude and latitude location (step S803), the mobile terminal device inputs the location name entered by the user, the new longitude and latitude information of the mobile terminal device, The correlation data storage unit 11 shown in FIG. 2 is a file that can be read by the user as a file that allows the user to read out the relationship between the base station that has left in step S301 and the transmission output current data consumed by the mobile terminal device under the power level transmitted at the time of connection. (S804), and the process ends (step S805).

  From step S801, it is determined that the longitude / latitude information of the own mobile terminal device used when calculating the call time is not new longitude / latitude information not stored in the longitude / latitude information storage unit 6 shown in FIG. 2 of the own mobile terminal device. If so, the process ends (step S805).

  In step S803, the information input by the user for the new longitude and latitude information may be a place name or, for example, a user's office name.

  As the operation of FIG. 8, when the user searches and sets the location name of the planned location from the file stored in the correlation data storage unit 11 shown in FIG. 1 (step S806), the set location name The longitude and latitude information and the transmission output current data are read out from the correlation data storage unit 11 (step S807).

  Next, the remaining capacity of the secondary battery shown in FIG. 2 is detected by the remaining battery capacity detecting unit 12 shown in FIG. 2 (step S110), and the talkable time is calculated from the remaining battery capacity and the transmission output current value read in step S807. (Step S111), the user of the mobile terminal device is notified of the call available time at the planned movement location (Step S809).

  As is apparent from the flowcharts of FIGS. 7 and 8, the mobile terminal device according to the embodiment of the present invention has an excellent effect in that the user is notified of the callable time at the planned movement location.

As described above, according to the mobile terminal device in the present embodiment, the user using the mobile terminal device registers the location name having the registered longitude and latitude information by reading it from the file stored in the mobile terminal device. Before moving to the place, the callable time at the registered place can be confirmed from the current remaining capacity of the secondary battery.

  The present invention, in a terrestrial cellular system having a plurality of base stations forming a radio area, receives GPS signals transmitted by a plurality of GPS (Global Positioning System) satellites, and based on the reception result, the own latitude and longitude A mobile terminal device having a function of detecting a mobile station device and a base station that distributes longitude and latitude information of the base station in the terrestrial cellular system, the mobile terminal device using the received and detected GPS signal to the user of the mobile terminal device Longitude and latitude information of the device position, longitude and latitude information of the base station position received from the base station, distance data between the base station and the mobile terminal device position, transmission output current data of the mobile terminal device stored in the past, Or the estimated transmission output current data of the mobile terminal device for the target distance stored in advance in the storage device of the mobile terminal device, and In addition, it has a function to calculate and notify the available call time at the current location from the remaining capacity of the current secondary battery, and the user who uses the mobile terminal device has the current secondary battery at each location. From the remaining battery capacity, you can check the available call time at each location, especially in places where you have stayed in the past, you can check the more accurate call available time and even before moving The available call time can be confirmed, and when it is determined that the available call time is insufficient, it can be replaced with a spare secondary battery in advance or the secondary battery can be charged with a charger. This is useful for avoiding the possibility of a call disconnection due to insufficient battery capacity.

1 is a schematic block diagram of a terrestrial cellular system according to a first embodiment of the present invention. Schematic block diagram of the transfer terminal device according to the first embodiment of the present invention The flowchart showing the operation example of the mobile terminal apparatus of the 1st Embodiment of this invention. The flowchart showing the operation example of the mobile terminal apparatus of the 1st Embodiment of this invention. The flowchart showing the operation example of the mobile terminal apparatus of the 1st Embodiment of this invention. The flowchart showing the operation example of the mobile terminal apparatus of the 2nd Embodiment of this invention. Flowchart representing an operation example of the mobile terminal device according to the third embodiment of the present invention Flowchart representing an operation example of the mobile terminal device according to the third embodiment of the present invention Schematic block diagram of a conventional method for notifying a callable time of a mobile terminal device having a battery remaining capacity detection function Schematic block diagram of a conventional method for notifying a callable time of a mobile terminal device having a battery remaining capacity detection function

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antenna for terrestrial cellular system 2 Antenna for satellite 3 Cellular system radio | wireless part 4 GPS receiving part 5, 33, 54 Control part 6 Latitude / longitude information storage part 7 Base station-self-mobile terminal distance calculation part 8 Comparison part 9 Pseudo correlation data Storage unit 10 Output current detection unit 11 Correlation data storage unit 12, 42, 52 Battery remaining capacity detection unit 13, 53 Callable time calculation unit 14, 70 Notification unit 15, 71 LCD
16, 72 Speaker 21, 41, 61 Secondary battery 31 Conversion unit 32 Calculation unit 34 Storage unit 35 Display unit 51 Timer setting unit 55 ROM
56 RAM
57 Average call time calculation unit 58 Call time calculation unit 100, 300, 500 Mobile terminal body 200, 400, 600 Battery pack

Claims (3)

In a terrestrial cellular system having a plurality of base stations forming a radio area, a function of receiving GPS signals transmitted by a plurality of GPS (Global Positioning System) satellites and detecting their own longitude and latitude based on the reception result And a base station that distributes the longitude and latitude information of the base station in the terrestrial cellular system, and the history of the position of the mobile terminal device by the received and detected GPS signal to the user of the mobile terminal device Degree information, longitude and latitude information of the base station position received from the base station, distance data between the base station and the own mobile terminal device, transmission output current data of the own mobile terminal device stored in the past, or a mobile terminal Estimated transmission output current data of the mobile terminal device for the target distance stored in advance in the storage device of the device, and the detected current secondary power A mobile terminal device having a function of calculating and notifying a call possible time at a current location from a remaining capacity of a pond. In a terrestrial cellular system having a plurality of base stations forming a radio area, a function of receiving GPS signals transmitted by a plurality of GPS (Global Positioning System) satellites and detecting their own longitude and latitude based on the reception result And a base station that distributes the longitude and latitude information of the base station in the terrestrial cellular system, and the latitude and longitude information of the mobile terminal device position stored from other mobile terminal devices having the same function And base station position longitude and latitude information, base station-mobile terminal device position distance data, and mobile terminal device transmission output current data between the distances, and adding them to the data of the own mobile terminal device The mobile terminal apparatus according to claim 1. In a terrestrial cellular system having a plurality of base stations forming a radio area, a function of receiving GPS signals transmitted by a plurality of GPS (Global Positioning System) satellites and detecting their own longitude and latitude based on the reception result And a base station that distributes the longitude and latitude information of the base station in the terrestrial cellular system, and the user registers the longitude and latitude information of the position of the mobile terminal device received and detected from the GPS satellite The mobile terminal according to claim 1, wherein the mobile terminal has a function of storing the location name, the longitude / latitude information, and the transmission output current data of the mobile terminal device in the mobile terminal device and reading them out together. apparatus.

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