JP2012205068A - Communication terminal and notification method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further properly perform a notification relating to a battery.SOLUTION: A communication terminal 1 having a battery comprises: a communication part 11 performing communication with a communication partner terminal which is a terminal of a communication partner; a communication log storage part 13 storing communication logs including information showing communication time, mapped to information showing the communication partner or a time zone; a battery residual quantity detection part 16 detecting a battery residual quantity; a battery requirement estimation part 15 estimating a battery requirement for communication based on the communication logs of the communication partner relating to the communication performed by the communication part 11, or a communication history of the time zone of the communication performed by the communication part 11; and a notification part 17 performing a predetermined notification based on the battery requirement estimated by the battery requirement estimation part 15, and the battery residual quantity detected by the battery residual quantity detection part 16.

Description

  The present invention relates to a communication terminal including a battery and a notification method.

  In a communication terminal such as a mobile phone, the remaining battery power may be lost during a call and the call may be disconnected. In such a case, the call partner cannot be informed of the reason why the call was disconnected until the battery recovers. For this reason, a portable terminal is known that calculates a callable time based on the remaining battery level and notifies the call according to the callable time so that the call is not suddenly disconnected (see, for example, Patent Document 1).

JP 2000-196714 A

  In the portable terminal disclosed in Patent Literature 1, a warning is given by comparing the available call time calculated from the remaining battery level with the average call time. However, since the call time may vary depending on the call partner or the call time zone, the mobile terminal disclosed in Patent Document 1 cannot provide an appropriate warning. For example, when the call partner is a close person, the call time may be long. Also, since there is no time in the morning, the talk time may be shortened. In the portable terminal disclosed in Patent Document 1, since the average call time of all calls is calculated, it is not possible to issue a warning in consideration of the call partner or the call time zone as described above.

  Accordingly, an object of the present invention is to provide a communication terminal and a notification method for performing notification regarding a battery more appropriately in order to solve such problems.

  In order to solve the above problems, a communication terminal of the present invention is a communication terminal including a battery, and indicates a communication means for communicating with a communication partner terminal that is a communication partner terminal, and a communication partner or a communication time zone. History storage means for accumulating communication history including information indicating communication time in association with information, battery remaining amount detection means for detecting remaining battery capacity, and communication history or communication of a communication partner related to communication performed by the communication means Based on the communication history of the time zone of communication performed by the means, the battery requirement prediction means for predicting the battery requirement necessary for communication, the battery requirement predicted by the battery requirement prediction means, and the remaining battery level detection And a notification means for performing a predetermined notification based on the remaining battery level detected by the means.

  A notification method of the present invention is a notification method by a communication terminal comprising a history storage means for accumulating a communication history in association with information indicating a communication partner or a communication time zone, and a battery. A communication step for communicating with a communication partner terminal, a battery remaining amount detection step for detecting a remaining battery level, and a communication history of a communication partner related to communication performed in the communication step or a communication time zone performed by a communication means. A battery requirement prediction step for predicting a battery requirement necessary for a call based on the communication history, a battery requirement estimated in the battery requirement prediction step, and a battery remaining amount detected in the battery remaining amount detection step And a notification step for performing a predetermined notification based on the above.

  ADVANTAGE OF THE INVENTION According to this invention, the required battery amount required for communication can be estimated based on the communication history for every communicating party or communication time zone, and notification can be performed based on the predicted required battery amount. Therefore, for example, when there is a tendency that the communication time varies depending on the communication partner, it is possible to predict the battery required amount for communication according to the communication partner and to notify the shortage of the battery based on the predicted battery required amount. it can. Also, for example, when the communication time tends to be different depending on the time zone, the required battery amount required for communication is predicted according to the communication time zone, and notification of battery shortage etc. is made based on the predicted battery amount required Can do. For this reason, according to this invention, the notification regarding a battery can be performed more appropriately.

  In the communication terminal of the present invention, it is preferable that the battery required amount predicting unit predicts the battery required amount when the communication unit makes / receives a call. According to this configuration, when making / receiving a call, it is possible to predict the required battery amount required for a call related to the incoming / outgoing call, and to notify the battery shortage based on the predicted required battery amount. For this reason, notification of battery shortage or the like can be made in advance when making or receiving a call.

  In the communication terminal of the present invention, it is preferable that the battery requirement prediction means predicts the battery requirement based on communication environment information indicating the communication environment. According to this configuration, it is possible to predict the battery requirement necessary for a call according to the communication environment. Therefore, for example, it is possible to predict the required battery amount necessary for communication in consideration of the influence of the radio wave condition and the environmental temperature on the battery.

  In the communication terminal according to the present invention, the notifying means can communicate with the battery when the battery remaining amount detected by the battery remaining amount detecting means is smaller than the battery required amount predicted by the battery required amount predicting means. Is preferably notified. According to this configuration, the user can be made aware of the communicable time when the remaining amount of the battery is less than the required amount of battery required for communication. Accordingly, it is possible to allow the user to communicate while being aware of the communicable time.

  In the communication terminal of the present invention, it is preferable that the notifying unit notifies the communication partner terminal that the battery is insufficient when the remaining battery level detected by the remaining battery level detecting unit is smaller than a predetermined value. According to this configuration, the communication partner terminal can be notified of the battery shortage before the communication is cut off due to a shortage of the remaining battery power. For this reason, even if the communication is cut off due to a shortage of the battery, it becomes possible to notify the communication partner of the reason for the disconnection in advance.

  Further, in the communication terminal of the present invention, the communication terminal further comprises a terminal registration unit for registering the communication partner terminal, and when the communication partner terminal is not registered in the terminal registration unit, the communication history is accumulated in the history storage unit as an unregistered terminal, Preferably, the required battery amount predicting unit predicts the required battery amount based on the communication history of the unregistered terminal when the communication partner terminal is not registered in the terminal registering unit. If the communication partner terminal is not registered, the communication history may not be accumulated. However, according to this configuration, communication with the unregistered communication partner terminal is performed based on the communication history of the entire unregistered communication partner terminal. It is possible to predict the required battery amount. For this reason, even if the communication history concerning the communication partner is not accumulated, it is possible to predict the necessary battery amount necessary for communication.

  In the communication terminal of the present invention, it is preferable that the battery required amount predicting unit predicts the battery required amount based on the communication history of the time zone to which the current time belongs when the communication unit is not communicating. According to this configuration, it is possible to predict the battery required amount when communication is performed during non-communication, and to notify the battery shortage or the like based on the predicted battery required amount. Therefore, for example, when there is a tendency to communicate for a long time after 21:00, it is possible to notify the battery shortage in advance during non-communication so that the power is not cut off during communication.

  According to the present invention, it is possible to more appropriately notify the battery.

It is a block diagram which shows the function structure of the communication terminal which concerns on embodiment of this invention. It is a block diagram which shows the hardware constitutions of the communication terminal which concerns on embodiment of this invention. It is a figure which shows an example of the communication log which the communication terminal accumulate | stores. It is a figure which shows an example of the average communication time which the communication terminal calculated. (A) is a figure which shows an example of the transmission of a communication terminal, (b) is a figure which shows an example of the incoming call of a communication terminal. It is a flowchart which shows the communication log storage process of the communication terminal which concerns on embodiment of this invention. It is a flowchart which shows the notification process at the time of the communication start of the communication terminal which concerns on embodiment of this invention. It is a flowchart which shows the notification process at the time of the battery shortage of the communication terminal which concerns on embodiment of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a communication terminal and a notification method according to the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a block diagram showing a functional configuration of a communication terminal 1 according to the embodiment of the present invention. The communication terminal 1 is a mobile phone, for example, and is a device that operates on a battery and has a communication function such as mobile communication. As will be described later, the communication terminal 1 predicts the required amount of battery required for communication and performs notification according to the comparison result with the remaining battery level. Specifically, the communication terminal 1 predicts the battery required amount required for communication based on the communication log (communication history), and notifies the communication possible time or the like when the remaining battery capacity is exceeded.

  FIG. 2 is a block diagram illustrating a hardware configuration of the communication terminal 1. As shown in FIG. 2, the communication terminal 1 physically includes a CPU (Central Processing Unit) 101, a RAM (Random Access Memory) 102 and a ROM 103 (Read Only Memory), which are main storage devices, and an auxiliary device such as a hard disk device. A storage module 104, a communication module 105 that transmits / receives data to / from other communication terminals via a communication network, a battery 106 that supplies power to the communication terminal 1, an input device that is an input device, an input device 107 such as a microphone, etc. Output devices 108 such as a display and a speaker that are output devices, a temperature sensor that detects the ambient temperature of the communication terminal 1, and a detection device 109 such as a radio wave sensor that detects a radio wave condition of the communication terminal 1. Yes.

  Each function of the communication terminal 1 to be described later has a communication module 105, an input device 107, and an output device under the control of the CPU 101 by reading predetermined computer software on hardware such as the CPU 101 and the RAM 102 shown in FIG. 108, the detection device 109, and the like are operated, and data is read and written in the RAM 102 and the auxiliary storage device 104.

  Subsequently, each function of the communication terminal 1 will be described. As illustrated in FIG. 1, the communication terminal 1 includes a communication unit 11, a communication log storage unit 13, a battery required amount prediction unit 15, a battery remaining amount detection unit 16, and a notification unit 17. ing. The communication terminal 1 may have a function as a normal mobile phone in addition to the above function. The communication terminal 1 may further include a telephone directory registration unit 12 and a communication information generation unit 14.

  The communication unit 11 functions as a communication unit that performs communication with a communication partner terminal that is a communication partner terminal. For example, the communication unit 11 transmits to a designated communication partner terminal, or receives an incoming call from a predetermined communication partner terminal, and performs communication (call) with the communication partner terminal.

  The telephone directory registration unit 12 functions as a terminal registration unit that registers a communication partner terminal. Specifically, the telephone directory registration unit 12 associates the name of the owner of the communication partner terminal with the specific information of the communication partner terminal such as the telephone number of the communication partner terminal and stores it as registration information. It is a book function. This registration information is input and registered by the user operating the input device 107.

  The communication log storage unit 13 functions as a history storage unit that accumulates a communication log including information indicating a communication time in association with information indicating a communication partner or a communication time zone. Specifically, the communication log storage unit 13 stores information related to communication performed by the communication unit 11 as a communication log for each communication partner or communication time zone. The communication log includes at least communication time information that is information indicating a communication time (call time). For example, communication time zone information that is information indicating a communication time zone (call time zone) (day of the week) and communication (call) time. It may further include temperature information that is information indicating the ambient temperature, radio wave information that is information indicating a radio wave condition during communication (call), and the like.

  The communication time information is acquired, for example, by measuring the time from when the communication unit 11 starts communication until it ends with a timing device (not shown) provided in the communication terminal 1. The communication time zone information is acquired, for example, by measuring a time zone during which the communication unit 11 performs communication using a timing device provided in the communication terminal 1. The temperature information is acquired by the detection device 109 (for example, a temperature sensor). The radio wave information is acquired by a detection device 109 (for example, a radio wave sensor).

  Then, the communication log storage unit 13 determines whether or not the communication partner terminal related to the communication performed by the communication unit 11 is registered in the telephone directory registration unit 12. If registered in the phone book registration unit 12, the communication log acquisition / update unit 16 stores the acquired information in the communication log storage unit 13 for each phone book registrant (communication partner). On the other hand, when the information is not registered in the telephone directory registration unit 12, each information is stored in the communication log storage unit 13 as an unregistered person (unregistered terminal). Note that the communication log storage unit 13 may accumulate a communication log for each communication time zone.

  FIG. 3 is a diagram illustrating an example of a communication log accumulated in the communication log storage unit 13. The communication log L1 shows that the communication partner is A, the call time is 30 minutes and 20 seconds, the call time zone is from 22:25 to 22:55 on January 1, 2011 (Saturday), and the temperature during the call is It shows that the average radio wave condition at the time of a call at 5 ° C. was a strong level for 20 minutes and a weak level for 10 minutes and 20 seconds. The communication log L2 shows that the communication partner is B, the call time is 5 minutes and 40 seconds, the call time zone is the time zone from 7:00 to 7:05 on Wednesday, January 5, 2011, and the temperature during the call is This shows that the average radio wave condition at the time of calling at 7 ° C. was a strong level for 5 minutes and 40 seconds. The communication log L3 indicates that the communication partner is an unregistered person who is not registered in the telephone directory registration unit 12, the call time is 4 minutes and 10 seconds, and the call time period is 17:00 to 17:00 on Friday, January 7, 2011. It shows that the time period until 04 minutes, the average temperature during the call was 11 ° C., and the radio wave condition during the call was a strong level for 4 minutes and 10 seconds.

  The communication information generation unit 14 functions as a communication information generation unit that generates communication information necessary for predicting a battery required amount described later based on the communication log stored in the communication log storage unit 13. For example, the communication information generation unit 14 calculates an average communication time as communication information. The communication information generation unit 14 may calculate the average communication time immediately after information related to communication is accumulated in the communication log storage unit 13 or may be performed at a predetermined cycle (for example, a 24-hour cycle). May be. Below, the calculation method of average communication time is demonstrated.

  The communication information generation unit 14 reads the communication time of the communication log for each communication partner from the communication log storage unit 13, calculates the average thereof, and sets it as the average communication time for each communication partner. Note that the communication information generation unit 14 may calculate the average communication time for each communication partner in each time zone (for example, in units of one hour) and use the average communication time for each communication partner in each time zone. Moreover, the communication information generation part 14 may read the communication time of the communication log for every time slot | zone from the communication log memory | storage part 13, and may calculate the average communication time with respect to the whole communication other party in each time slot | zone.

  Furthermore, the communication information generation unit 14 may read the communication time of communication logs of unregistered persons who are not registered in the phone book registration unit 12 and calculate the average communication time of all unregistered persons. Moreover, the communication information generation part 14 may calculate the average communication time of the whole unregistered person in each time slot | zone. The communication information generation unit 14 calculates any or all of the average communication times described above, and holds information indicating the average communication time.

FIG. 4 is a diagram illustrating an example of the average communication time calculated by the communication information generation unit 14. The average communication time T _A is the average call duration of the communication partner A, 12 min 12 seconds in the time zone of, 7 to 8, 1 minute 14 seconds in the time zone of 8-9 o'clock Show. The average communication time T _all is the average call time with all communication partners, and it is 1 minute 12 seconds in the time zone from 7:00 to 8:00, and 3 minutes 14 seconds in the time zone from 8:00 to 9:00. Show.

  The battery requirement prediction unit 15 predicts a battery requirement necessary for communication based on communication information of a communication partner related to communication performed by the communication unit 11 or communication information of a communication time zone performed by the communication unit 11. Functions as a battery requirement prediction means. The battery requirement prediction unit 15 transmits information indicating the battery requirement to the notification unit 17. Below, the prediction method of a battery required amount is demonstrated.

The battery requirement prediction unit 15 acquires information indicating the average communication time with the communication partner from the communication information generation unit 14. Then, the battery requirement prediction unit 15 sets the average communication time with the communication partner as the expected communication time. Next, the battery required amount prediction unit 15 needs the battery necessary for communication based on the communicable time per 1% with respect to the maximum capacity of the battery (hereinafter simply referred to as “communicable time per 1% battery”). Predict the amount. The battery requirement prediction unit 15 predicts the battery requirement using, for example, the following equation (1).
P = τ / T ... (1)

  In Equation (1), P is the required battery amount, τ is the expected communication time, and T is the communication possible time per 1% of the battery. The communicable time T per 1% of the battery is set in the battery requirement prediction unit 15 in advance. For example, assuming that the communicable time T per 1% of the battery is set to 120 seconds, the required battery amount P is predicted to be 10% when the estimated communication time τ is 20 minutes.

  When the communication information generation unit 14 holds the average communication time for each communication partner in each time zone, the battery requirement prediction unit 15 determines which time zone the communication performed by the communication unit 11 belongs to. The average communication time with the communication partner corresponding to the determined time zone may be acquired from the communication information generation unit 14. And the battery requirement prediction part 15 is good also considering the acquired average communication time as prediction communication time.

  When the communication information generation unit 14 holds an average communication time for all communication partners in each time zone, the battery requirement prediction unit 15 determines which time zone the communication performed by the communication unit 11 belongs to. The average communication time corresponding to the determined time zone may be acquired. And the battery requirement prediction part 15 is good also considering the acquired average communication time as prediction communication time.

  Note that the battery requirement prediction unit 15 may calculate and set the communicable time per 1% of the battery based on the communication log. For example, the communication log storage unit 13 accumulates a communication log that further includes a remaining battery level before the start of communication and a remaining battery level after the end of communication. Then, the required battery amount prediction unit 15 may calculate the communicable time per 1% of the battery based on the communication time acquired from the communication log and the difference between the remaining battery levels before and after communication.

  Further, the battery requirement prediction unit 15 may predict the battery requirement based on the communication environment information indicating the communication environment. More specifically, the battery requirement prediction unit 15 considers the influence of the communication environment such as the ambient temperature of the communication terminal 1 detected by the temperature sensor and the radio wave status of the communication terminal 1 detected by the radio wave sensor. The communicable time per% may be corrected, and the battery requirement may be predicted from the corrected communicable time. Hereinafter, a method for correcting the communicable time per 1% of the battery will be described.

  The required battery amount prediction unit 15 corrects the communicable time based on the influence degree of the ambient temperature with reference to the communicable time per 1% of the battery at normal temperature (for example, 20 ° C.). The communicable time per 1% of the battery at room temperature is set in advance in the battery requirement prediction unit 15. The influence level of the ambient temperature is set in advance in the battery requirement prediction unit 15 for each ambient temperature as a temperature correction coefficient for correcting the communicable time per 1% of the battery at room temperature.

  For example, the temperature correction coefficient when the ambient temperature of the communication terminal 1 is 5 to 10 ° C. is set to 15% reduction, that is, 0.85. The temperature correction coefficient when the ambient temperature of the communication terminal 1 is 0 to 5 ° C. is set to 20% reduction, that is, 0.8. If the communicable time per 1% of the battery at normal temperature is set to 150 seconds, for example, the communicable time per 1% of the battery when the ambient temperature is 5 to 10 ° C. and 0 to 5 ° C. is 127. 5 seconds and 120 seconds.

  Note that the battery requirement prediction unit 15 may calculate and set the temperature correction coefficient based on the communication log. For example, the communication log storage unit 13 accumulates a communication log that further includes a remaining battery level before the start of communication and a remaining battery level after the end of communication. Then, the battery requirement prediction unit 15 may calculate the temperature correction coefficient based on the communication time acquired from the communication log, the ambient temperature during communication, and the difference between the remaining battery levels before and after communication.

  Further, for example, the required battery amount prediction unit 15 may correct the communicable time based on the degree of influence of the radio wave condition on the basis of the communicable time per 1% of the battery having a strong radio wave condition. The communicable time per 1% battery with a strong radio wave condition is preset in the battery requirement prediction unit 15. Further, the influence level of the radio wave condition is set in advance in the battery requirement prediction unit 15 for each radio wave level as a radio wave correction coefficient for correcting the communicable time per 1% of the battery having a strong radio wave condition.

  For example, the radio wave correction coefficient when the radio wave status of the communication terminal 1 is at a medium level (two antennas displayed on the display) is set to 11% reduction, that is, 0.89. The radio wave correction coefficient when the radio wave condition of the communication terminal 1 is at a weak level (one antenna) is set to 31% reduction, that is, 0.69. If the communicable time per 1% of the battery when the radio wave condition is strong is set to 180 seconds, for example, the communicable time per 1% of the battery when the radio wave condition is medium level and weak level is 160 respectively. Seconds, 125 seconds.

  Note that the battery requirement prediction unit 15 may calculate and set the radio wave correction coefficient based on the communication log. For example, the communication log storage unit 13 accumulates a communication log that further includes a remaining battery level before the start of communication and a remaining battery level after the end of communication. Then, the required battery amount prediction unit 15 may calculate the radio wave correction coefficient based on the communication time acquired from the communication log, the radio wave status during communication, and the difference between the remaining battery levels before and after communication.

That is, the required battery amount prediction unit 15 determines the communication possible time per 1% of the battery in the reference communication environment (for example, ambient temperature: 20 ° C., radio wave condition: strong level) and the influence degree of each element of the communication environment ( For example, the communicable time per 1% of the battery in the communication environment is calculated based on the following equation (2). In the equation _{(2), T env} communication available time of the battery per percent in the communication environment, _{T o} is communicable time per% charge in a communication environment which is a reference, alpha _envi the communication environment element i (I is an integer value of 1 to N) indicates a communication time correction coefficient. Communicable time T _o of the battery per 1% in a communication environment of this _reference, the correction coefficient alpha _envi communicable time by element i of the communication environment is preset to the battery required amount prediction unit 15.
T _env = T _o × α _env1 × α _env2 ×… × α _envN … (2)

Using the communication possible time per 1% of the battery corrected in this way, that is, the communication possible time per 1% of the battery in the communication environment, the battery requirement amount prediction unit 15 is based on, for example, the following formula (3): Predict battery requirements. In Equation (3), P is the required battery amount, τ is the expected communication time, and T _env is the communication possible time per 1% of the battery in the communication environment.
P = τ / T _env (3)

  FIG. 5A is a diagram showing that the communication terminal 1 makes a call to the communication partner terminal A at 7:15. As shown in FIG. 5A, at the time of transmission, the ambient temperature detected by the temperature sensor is 7 ° C., and the radio wave condition detected by the radio wave sensor is at a strong level. In this case, for example, the required battery amount prediction unit 15 acquires the average communication time in the time zone from 7:00 to 8:00 with the communication partner terminal A from the communication information generation unit 14 and sets it as the predicted communication time. Here, it is assumed that the average communication time with the owner of the communication partner terminal A in the time zone from 7:00 to 8:00 is 11 minutes.

  Next, the battery requirement prediction unit 15 calculates a communicable time per 1% of the battery in the communication environment of the communication terminal 1 at the time of transmission. Since the ambient temperature is 7 ° C., the communicable time is reduced by 15% with respect to the communicable time per 1% of the battery at normal temperature, and the radio wave condition is at a strong level, so there is no influence by radio waves. Accordingly, the communication possible time per 1% of the battery in the communication environment of the communication terminal 1 at the time of outgoing call is 127 if the communicable time per 1% of the battery having a strong radio wave condition at room temperature is set to 150 seconds. Calculated as 5 seconds. Then, the required battery amount predicting unit 15 predicts the required battery amount based on the expected communication time and the communicable time per 1% of the battery in the communication environment of the communication terminal 1 at the time of transmission by the above-described equation (3). . As a result, the battery requirement is predicted to be 5.2%.

  FIG. 5B is a diagram showing that the communication terminal 1 receives an incoming call from the communication partner terminal A at 7:15. Also in this case, the battery requirement prediction unit 15 calculates the battery requirement as in the case of FIG.

  In addition, when the communication unit 11 is not performing communication (during non-communication), the battery requirement prediction unit 15 may predict the battery requirement based on communication information for each time zone. Below, the prediction method of the battery required amount at the time of non-communication is demonstrated. The required battery amount prediction unit 15 periodically determines whether communication is performed by the communication unit 11 (for example, every 10 minutes).

  When the battery requirement prediction unit 15 determines that communication is not being performed, the battery requirement amount prediction unit 15 acquires, from the communication information generation unit 14, the average communication time for all communication partners in the time zone to which the current time belongs. Alternatively, the battery requirement prediction unit 15 may acquire the maximum average communication time from the communication information generation unit 14 among the average communication times for each communication partner. Then, the battery requirement prediction unit 15 predicts the battery requirement during non-communication based on the above equation (1) or (3), using the acquired average communication time as the expected communication time. The battery requirement at the time of non-communication is not a battery requirement necessary in a non-communication state, but a battery requirement amount that will be necessary if communication is performed.

  The remaining battery level detection unit 16 functions as remaining battery level detection means for detecting the remaining battery level. Specifically, the battery remaining amount detection unit 16 detects the remaining amount of the battery 106 by using a conventionally known method. The remaining battery level is detected as a ratio (%) to the maximum capacity of the battery, for example. Then, the remaining battery level detection unit 16 transmits information indicating the remaining battery level to the notification unit 17.

  The notification unit 17 functions as a notification unit that performs a predetermined notification based on the required battery amount predicted by the required battery amount prediction unit 15 and the remaining battery level detected by the remaining battery level detection unit 16. Specifically, when the remaining battery level is less than the required battery level, the notification unit 17 determines that the remaining battery level is insufficient and displays a message indicating that the battery is insufficient on the display. Further, when the communication terminal 1 performs communication, the notification unit 17 notifies the communication partner terminal that the battery is insufficient, for example, using a message by SMS (Short Message Service) via the communication unit 11. Good.

At this time, the communication possible time may be displayed instead of the battery shortage display, or the communication available time may be displayed together with the battery shortage display. This communicable time is based on the communicable time per 1% of the battery in the communication environment of the communication terminal 1 calculated by the battery requirement prediction unit 15 and the remaining battery level detected by the remaining battery level detection unit 16. For example, it is calculated by the following equation (4). In the equation (4), T is communicable _{time, T env} communication available time of the battery per percent in the communication environment, _{P r} represents the battery level.
T = P _r × T _env … (4)

  The notification unit 17 displays, for example, a warning “battery shortage (callable time: 10 minutes)” by a pop-up. Further, the notification unit 17 may notify the communication partner terminal of at least one of the battery shortage of the communication terminal 1 and the communicable time via the communication unit 11. Notification to the communication partner terminal may be performed by an alarm or guidance.

The notification unit 17 may notify the communication partner terminal that the battery is insufficient when the remaining battery level detected by the remaining battery level detection unit 16 is smaller than a predetermined value. Specifically, when the remaining battery level is less than the threshold value _Bth , the notification unit 17 determines that the call is disconnected due to a shortage of the battery, and uses, for example, an SMS message to notify the communication partner terminal of the battery. Notify the shortage. The notification unit 17 transmits, for example, a message such as “The battery has run out. Please wait for a while until a call can be made” to the communication partner terminal. The threshold value B _th may be set to be equal to or greater than the required amount of battery required to notify the communication partner terminal by SMS or the like, and is preferably set to the remaining battery level immediately before or immediately after the call is disconnected.

  The notification unit 17 may notify the user of charging by, for example, a pop-up when it is determined that the battery is insufficient even when the call is not made or received. For example, the notification unit 17 compares the battery required amount during non-communication predicted by the battery required amount prediction unit 15 with the battery remaining amount in a preset cycle (for example, a cycle of 10 minutes). When the remaining battery level is low, the notification unit 17 performs notification that prompts charging, for example. That is, this notification is not made based on the required battery amount required in the non-communication state, but based on the required battery amount that would be required if communication was performed.

  FIG. 6 is a flowchart showing communication log accumulation processing of the communication terminal 1. This process is performed, for example, when communication by the communication unit 11 is completed. First, the communication log storage unit 13 acquires information related to communication performed by the communication unit 11 (S01). Next, the communication log storage unit 13 determines whether or not the communication partner terminal related to the communication performed by the communication unit 11 is registered in the telephone directory registration unit 12 (S02).

  As a result of the determination, if it is determined that it is registered in the telephone directory registration unit 12 (S02; Yes), the communication log storage unit 13 accumulates information related to communication for each communication partner (registrant) (S03). Then, the communication information generation unit 14 calculates an average communication time for each communication partner (S04). In the process of S04, the communication information generation unit 14 may calculate an average communication time for each communication partner in each time zone. This S04 is performed at an arbitrary timing after the processing of S03. For example, it may be performed immediately after the processing of S03, may be performed at a constant cycle, or may be performed every time a certain amount of communication log is accumulated.

  On the other hand, when it is determined in S02 that it is not registered in the telephone directory registration unit 12 (S02; No), the communication log storage unit 13 accumulates information regarding communication as an unregistered person (S05). Then, the communication information generation unit 14 calculates the average communication time of all unregistered persons (S06). In the process of S06, the communication information generation unit 14 may calculate the average communication time of all unregistered persons in each time zone. This S06 is performed at an arbitrary timing after the processing of S05. For example, it may be performed immediately after the processing of S05, may be performed at a constant cycle, or may be performed every time a certain amount of communication log is accumulated.

  Next, the operation of the communication terminal 1 will be described with reference to FIG. FIG. 7 is a flowchart showing a notification process when the communication terminal 1 starts communication. First, the communication unit 11 starts communication with a communication partner terminal (S11, communication step). Next, the remaining battery level detection unit 16 detects the remaining battery level (S12, remaining battery level detection step). Further, the battery requirement prediction unit 15 acquires the average communication time for each communication partner or the average communication time for each communication time zone calculated by the communication information generation unit 14. Then, the battery requirement prediction unit 15 predicts the battery requirement necessary for communication based on the acquired average communication time (S13, battery requirement prediction step).

  In the process of S13, the battery requirement prediction unit 15 may predict the battery requirement in consideration of the communication environment such as the ambient temperature and the radio wave condition. For example, the required battery amount prediction unit 15 acquires temperature information from a temperature sensor and acquires radio wave information from the radio wave sensor. Next, the required battery amount prediction unit 15 calculates the communicable time per 1% of the battery in the communication environment using the above-described equation (2). Then, the battery requirement prediction unit 15 predicts the battery requirement using the above-described equation (3).

  Next, the notification unit 17 determines whether or not the required battery amount predicted in S13 is larger than the remaining battery level detected in S12 (S14). As a result of the determination, when it is determined that the remaining battery capacity is equal to or greater than the required battery amount (S14; No), the notification unit 17 ends the process without performing notification. On the other hand, in the determination of S14, when it is determined that the remaining battery capacity is less than the required battery amount (S14; Yes), the notification unit 17 performs a predetermined notification (S15, notification step).

  For example, the notification unit 17 displays a battery shortage in a pop-up on the display of the communication terminal 1. Further, the notification unit 17 displays a battery shortage guidance on the communication partner terminal. At this time, the callable time may be displayed instead of the battery shortage display, or the callable time may be displayed together with the battery shortage display. In addition, the process of S12 and the process of S13 may be performed in any order, and may be performed in parallel. Further, this process may be performed during communication as well as at the start of communication.

FIG. 8 is a flowchart showing another notification process of the communication terminal 1. This process is performed periodically (for example, every 5 minutes). First, the remaining battery level detection unit 16 detects the remaining battery level (S21). Next, the notification unit 17 determines whether or not the remaining battery level detected in S21 is greater than or equal to the threshold value _Bth (S22). As a result of the determination, when it is determined that the remaining battery level is equal to or greater than the threshold value _Bth (S22; Yes), the notification unit 17 ends the process without performing notification. On the other hand, in the determination of S22, when it is determined that the remaining battery level is less than the threshold value _Bth (S22; No), the notification unit 17 notifies that the power is cut off due to a shortage of the battery (S23).

  For example, the notification unit 17 displays a battery shortage in a pop-up on the display of the communication terminal 1. In addition, the notification unit 17 transmits a battery shortage message to the communication partner terminal using SMS if communication is being performed.

  Next, the effect of the communication terminal 1 of this embodiment is demonstrated. In the communication terminal 1, the communication unit 11 communicates with a communication partner terminal that is a communication partner terminal, and the communication log storage unit 13 includes a communication log including information indicating a communication time for each communication partner or communication time zone. Accumulate. Further, the remaining battery level detection unit 16 detects the remaining battery level, and the required battery amount prediction unit 15 is a communication log of a communication partner related to communication performed by the communication unit 11 or a time zone of communication performed by the communication unit 11 Based on the communication log, the required battery capacity for communication is predicted. Then, the notification unit 17 performs a predetermined notification based on the required battery amount predicted by the required battery amount prediction unit 15 and the remaining battery level detected by the remaining battery level detection unit 16.

  In this way, the communication terminal 1 predicts the battery requirement necessary for communication based on the communication log of the communication partner or the communication log of the time zone of communication performed by the communication unit 11, and the predicted battery requirement A predetermined notification can be made based on the remaining battery level. That is, according to the communication terminal 1, when the communication time tends to be different depending on the communication partner, the battery required amount required for communication is predicted according to the communication partner, and based on the predicted battery required amount, the battery shortage, etc. Notification can be made. In addition, when the communication time tends to be different depending on the time zone, the battery requirement required for communication can be predicted according to the communication time zone, and notification such as battery shortage can be made based on the predicted battery requirement. . For this reason, according to the communication terminal 1, the notification regarding a battery can be performed more appropriately.

  In the communication terminal 1, the battery requirement prediction unit 15 may predict the battery requirement when the communication unit 11 makes / receives a call. According to this configuration, it is possible to predict the required battery amount required for a call related to the outgoing / incoming call, and to notify the battery shortage based on the predicted required battery amount. For this reason, notification of battery shortage or the like can be made in advance when making or receiving a call.

  In the communication terminal 1, the battery requirement prediction unit 15 may predict the battery requirement based on the communication environment information indicating the communication environment. According to this configuration, it is possible to predict the battery requirement necessary for a call according to the communication environment. For example, in an environment where the environmental temperature is low, the communicable time of the battery is shortened compared to a normal temperature environment. Also, in an environment where the radio wave condition is poor, the communicable time of the battery is shortened compared to an environment where the radio wave condition is good (strong level). In this way, it is possible to predict the battery requirement necessary for communication in consideration of the influence of the communication environment on the battery.

  Further, in the communication terminal 1, the communicable time may be notified when the remaining battery level is low compared to the predicted battery requirement. According to this configuration, the user can be made aware of the communicable time when the remaining amount of the battery is less than the required amount of battery. Accordingly, it is possible to allow the user to communicate while being aware of the communicable time.

  Further, in the communication terminal 1, the notification unit 17 may notify the communication partner terminal that the battery is insufficient when the remaining battery level is smaller than a predetermined value. According to this configuration, the communication partner terminal can be notified of the battery shortage before the communication is cut off due to a shortage of the remaining battery power. For this reason, even if the communication is cut off due to a shortage of the battery, it becomes possible to notify the communication partner of the reason for the disconnection in advance.

  The communication terminal 1 may further include a telephone directory registration unit 12 for registering a communication partner terminal. If the communication partner terminal is not registered in the phone book registration unit 12, the communication log may be stored in the communication log storage unit 13 as an unregistered terminal. If it is not registered in the book registration unit 12, the battery requirement may be predicted based on the communication log of the unregistered terminal. According to this configuration, it is possible to predict the required battery amount necessary for communication with the unregistered communication partner terminal based on the communication log of the entire unregistered communication partner terminal. For this reason, even if the communication log concerning the communication partner is not accumulated, the required battery amount necessary for communication can be predicted.

  In the communication terminal 1, the battery requirement prediction unit 15 may predict the battery requirement based on the communication log of the time zone to which the current time belongs when the communication unit 11 is not communicating. According to this configuration, it is possible to predict the battery required amount when communication is performed during non-communication, and to notify the battery shortage or the like based on the predicted battery required amount. Therefore, for example, when there is a tendency to communicate for a long time after 21:00, it is possible to notify the battery shortage in advance during non-communication so that the power is not cut off during communication.

  The communication terminal and the notification method according to the present invention are not limited to those described in this embodiment. The communication terminal and the notification method according to the present invention may be modified or applied to other communication terminals and notification methods according to the embodiments so as not to change the gist described in each claim.

  For example, in the above-described embodiment, the communication terminal 1 accumulates the communication log in the communication log storage unit 13 for each communication partner or communication time zone. However, all communication logs may be accumulated without being classified. In this case, the communication information generation unit 14 can acquire a necessary communication log by reading the communication log using any information included in the communication log as a key.

  Further, in the above embodiment, in the communication terminal 1, when the communication partner terminal is registered in the telephone directory registration unit 12, the communication log is stored for each communication partner, but the communication log is stored for each communication partner terminal. The average communication time may be calculated for each communication partner terminal. By doing in this way, the communication log for every communication partner terminal can be accumulated, and the average communication time for every communication partner terminal can be calculated. When the communication time tends to be different depending on the communication partner terminal, it is possible to more appropriately notify the battery.

  Further, in the above embodiment, the communication terminal 1 is not registered in the phone book registration unit 12, and has accumulated a communication log as an unregistered terminal, but is not registered in the phone book registration unit 12. Alternatively, a communication log may be stored for each communication partner terminal using information such as a telephone number that can identify the communication partner terminal. By doing in this way, even if it is a communication other party terminal which has not registered to the telephone directory registration part 12, a battery required amount can be estimated based on the communication log of a communication other party terminal.

  In the above embodiment, in the communication terminal 1, the communication log acquisition / update unit 16 calculates the average communication time at a predetermined timing. However, when the battery requirement prediction unit 15 predicts the battery requirement, a desired value is calculated. The average communication time may be calculated.

  In the above embodiment, the communication terminal 1 predicts the battery required amount in consideration of the ambient temperature and the radio wave condition. However, other communication environments that affect the battery may be further considered. Also, only one of the communication environments may be considered, or the required battery amount may be predicted in consideration of a plurality of communication environments.

  Moreover, in the said embodiment, in the communication terminal 1, the notification part 17 has performed the notification by displaying a warning etc. on a display, However, It is not limited to this. For example, the notification unit 17 may give a warning such as a battery shortage by voice through a speaker (not shown).

DESCRIPTION OF SYMBOLS 1 ... Communication terminal, 11 ... Communication part (communication means), 12 ... Phonebook registration part (terminal registration means), 13 ... Communication log storage part (history storage means), 14 ... Communication information generation part, 15 ... Battery required amount Prediction unit (battery required amount prediction unit), 16... Battery remaining amount detection unit (battery remaining amount detection unit), 17... Notification unit (notification unit), 106.

Claims (8)

A communication terminal comprising a battery,
A communication means for communicating with a communication partner terminal that is a communication partner terminal;
History storage means for storing a communication history including information indicating communication time in association with information indicating the communication partner or communication time zone;
A battery level detection means for detecting the battery level;
Battery required amount predicting means for predicting the battery required amount required for communication based on the communication history of the communication partner related to the communication performed by the communication means or the communication history of the time zone of the communication performed by the communication means. When,
A notification means for performing a predetermined notification based on the battery required amount predicted by the battery required amount prediction means and the battery remaining amount detected by the battery remaining amount detection means;
A communication terminal comprising:   2. The communication terminal according to claim 1, wherein the battery required amount predicting unit predicts the battery required amount when an outgoing / incoming call is performed by the communication unit.   The communication terminal according to claim 1 or 2, wherein the battery requirement prediction means predicts the battery requirement based on communication environment information indicating a communication environment.   The notifying means notifies a communicable time when the battery remaining amount detected by the battery remaining amount detecting means is small compared to the battery required amount predicted by the battery required amount predicting means. The communication terminal according to any one of claims 1 to 3.   5. The notification unit according to claim 1, wherein when the remaining battery level detected by the remaining battery level detection unit is smaller than a predetermined value, the communication partner terminal is notified of battery shortage. The communication terminal according to one item. Terminal registration means for registering the communication partner terminal;
If the communication partner terminal is not registered in the terminal registration means, a communication history is stored in the history storage means as an unregistered terminal,
The battery requirement prediction unit predicts the battery requirement based on a communication history of the unregistered terminal when the communication partner terminal is not registered in the terminal registration unit. The communication terminal as described in any one of -5.   The battery required amount predicting unit predicts the battery required amount based on the communication history of a time zone to which a current time belongs when the communication unit is not communicating. The communication terminal described. A notification method by a communication terminal comprising a history storage means for storing a communication history in association with information indicating a communication partner or a communication time zone, and a battery,
A communication step of performing communication with a communication partner terminal that is the communication partner terminal;
A battery level detection step for detecting the battery level;
A battery requirement prediction step for predicting a battery requirement necessary for a call based on the communication history of the communication partner related to the communication performed in the communication step or the communication history of a communication time zone performed by the communication means. When,
A notification step for performing a predetermined notification based on the required battery amount predicted in the required battery amount prediction step and the remaining battery amount detected in the remaining battery amount detection step;
A notification method comprising:

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