JP2013251693A - Electronic apparatus, power supply control method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a communication function to be switched ON/OFF even in the same place depending on a use situation of the communication function.SOLUTION: A position time information storage unit 41 stores stop position time information showing a combination of a position and time at which power supply to a communication unit 12 should be stopped. A power supply control unit 29 determines whether or not a combination of current position information acquired by a position information acquisition unit 16 and current time information acquired by a clock unit 15 corresponds to the stop position time information stored by the position time information storage unit 41 when the communication unit 12 is not used. Thus, the power supply control unit 29 determines whether to stop power supply to the communication unit 12 on the basis of a combination of position information and time information, which makes it possible to switch ON/OFF of a communication function (presence or absence of power supply to the communication unit 12) even in the same place.

Description

  The present invention relates to an electronic device, a power supply control method, and a program.

With the increasing use of short-distance wireless communication functions, such as short-distance wireless communication between a mobile phone and a car navigation system (Car Navigation System), the short-distance wireless communication function of the mobile phone is always on. Users are increasing.
On the other hand, by always turning on the short-range wireless communication function, a current always flows through a circuit that realizes the short-range wireless communication function regardless of whether or not communication is performed, and the power consumption of the mobile phone is reduced. It will increase. In addition, the short-range wireless communication function includes a specification that repeats a peripheral device search for searching for connectable devices. When such a peripheral device search is performed, the power consumption of the mobile phone is further increased by always turning on the short-range wireless communication function.

Therefore, several techniques for automatically switching ON / OFF of the short-range wireless communication function have been proposed.
For example, the configuration described in Patent Document 1 includes a first communication unit designed to perform contactless communication with a cell communication station within an allocated cell communication range of a cellular communication system, and the first communication unit A second communication means designed to contactlessly communicate with the second communication system independently of the second communication means, the second communication means being designed to be activated using an activation signal that can be supplied The presence of the second communication system is detected within the cell communication range by evaluating the communication signal between the first communication means and the cell communication station, and the presence of the second communication system is detected. Sometimes it has activation means designed to output an activation signal to the second communication means.
Thus, for example, a component that consumes redundant power is not required because it can be implemented by a relatively simple adaptation of the software of the configuration. In addition, since redundant components are avoided, the hardware cost remains low, and furthermore, optimal power consumption management is realized.

The mobile phone described in Patent Document 2 is a mobile phone having a short-range wireless communication function for participating in a wireless network and a positioning function based on communication with a satellite and / or a ground base station. Area registration means for registering one or a plurality of areas for which the short-range wireless communication function should be turned on using the function, and short-range wireless communication by detecting deviation from the area registered by the positioning function A communication function on / off means for switching the function from on to off.
As a result, the short-range wireless communication function can be automatically switched from on to off as it leaves the network installation area, so no user operation is required and no waste of power occurs. It is said that.

JP 2007-525881 A JP 2002-290308 A

  When the user does not use the short-range wireless communication function, in addition to the case where the communicable device is not within the communicable range, the user may not be able to operate the device having the short-range wireless communication function, such as when attending a conference or sleeping. Conceivable. In such a case, if the short-range wireless communication function can be turned off, the power consumption of the mobile phone can be reduced.

  However, since the configuration described in Patent Document 1 outputs an activation signal to the second communication means when the presence of the second communication system is detected, regardless of whether the user uses the short-range wireless communication function or not. The ON / OFF of the second communication means is switched. Further, in the configuration of Patent Document 1, it is not possible to switch the second communication unit on / off in the same place according to the user's situation. For example, ON / OFF of the second communication means cannot be switched depending on whether the user is active or sleeping in the same room.

  Further, in the mobile phone described in Patent Document 2, in order to switch ON / OFF of the short-range wireless communication function, the user needs to perform an area registration operation, which is a burden on the user. Further, even the mobile phone described in Patent Document 2 cannot switch ON / OFF of the second communication means in the same place according to the user's situation.

  An object of the present invention is to provide an electronic device, a power supply control method, and a program that can solve the above-described problems.

  The present invention has been made to solve the above-described problems, and an electronic device according to one embodiment of the present invention includes a communication unit, a power supply unit that supplies power to the communication unit, and power supply to the communication unit. A position time information storage unit that stores stop position time information indicating a combination of a position to be stopped and a time, a position information acquisition unit that acquires its current position information, a clock unit that acquires current time information, and the communication A combination of the current position information acquired by the position information acquisition unit and the current time information acquired by the clock unit is the position time information storage unit as the stop position time information. And a power supply control unit that stops power supply from the power supply unit to the communication unit.

  The power supply control method according to one aspect of the present invention includes a communication unit, a power supply unit that supplies power to the communication unit, and a stop position that indicates a combination of a position and a time at which power supply to the communication unit should be stopped. A position time information storage unit that stores time information, a power supply control method for an electronic device, the position information acquisition step for acquiring current position information of the electronic device, and the current time for acquiring current time information The combination of the acquisition step and the current position information acquired in the current time acquisition step and the current position information acquired in the position information acquisition step and the current time information acquired in the position information acquisition step is the stop A power supply control step of stopping power supply from the power supply unit to the communication unit when it is determined that the location time information is registered in the location time information storage unit; Characterized by including the.

  The program according to an aspect of the present invention includes a communication unit, a power supply unit that supplies power to the communication unit, and stop position time information that indicates a combination of a position and time at which power supply to the communication unit should be stopped. A position information acquisition step for acquiring current position information of the electronic device, a current time acquisition step for acquiring current time information in a computer as an electronic device comprising a position time information storage unit for storing, and the communication unit Is not used, and the combination of the current position information acquired in the position information acquisition step and the current time information acquired in the current time acquisition step is the position time as the stop position time information. A power supply control step of stopping power supply from the power supply unit to the communication unit when it is determined that the information is registered in the information storage unit. It is because of the program.

  According to the present invention, ON / OFF of the communication function can be switched even in the same place.

It is a schematic block diagram which shows the function structure of the electronic device in one Embodiment of this invention. FIG. 2 is a schematic block diagram showing a functional configuration of a mobile phone in the same embodiment. It is explanatory drawing which shows the data structure of the information which the position time information storage part in the embodiment memorize | stores. It is a schematic block diagram which shows the apparatus structure of the mobile telephone in the same embodiment. In the same embodiment, it is a flowchart which shows the procedure of the process which an electric power supply control part and a position time information management part perform. 5 is a sequence diagram illustrating an example of an operation in which the mobile phone detects that communication is not used and stops the short-range wireless communication function in the embodiment. FIG.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic block diagram showing a functional configuration of an electronic device according to an embodiment of the present invention. In FIG. 1, the electronic device 1 includes a communication unit 12, a clock unit 15, a position information acquisition unit 16, a power supply unit 19, a power supply control unit 29, and a position time information storage unit 41.

The communication unit 12 performs communication. The communication unit 12 consumes power such as standby power even when communication is not actually performed. If the power supply to the communication unit 12 can be stopped when the communication unit 12 does not perform communication, the power consumption of the electronic device 1 can be reduced.
The power supply unit 19 supplies power to each unit of the electronic device 1. In particular, the power supply unit 19 supplies power to the communication unit 12.

  The position time information storage unit 41 stores stop position time information indicating a combination of a position and a time at which power supply to the communication unit 12 should be stopped. Here, the position and time information storage unit 41 is a combination of a position and time at which power supply to the communication unit 12 should be stopped, and a position and time when the communication function of the communication unit 12 is not used based on the user's life pattern. The combination of is memorized. For example, when the user cannot operate the communication function while attending a meeting or sleeping, this corresponds to the case where the communication function of the communication unit 12 is not used based on the user's life pattern.

The clock unit 15 acquires current time information.
The position information acquisition unit 16 acquires the current position information of the position information acquisition unit 16 itself (that is, the current position information of the electronic device 1).
The power supply control unit 29 uses the combination of the current position information acquired by the position information acquisition unit 16 and the current time information acquired by the clock unit 15 as stop position time information when the communication unit 12 is not used. If it is determined that it is registered in the position time information storage unit 41, the power supply from the power supply unit 19 to the communication unit 12 is stopped.

  For example, the power supply control unit 29 first determines whether or not the communication unit 12 is being used. Specifically, the power supply control unit 29 continues for a predetermined time or longer when the electronic device 1 is neither transmitting nor receiving actual data that is data used to provide a user with a function such as an application. It is determined whether or not. If it is determined that the communication unit 12 is not used, the power supply control unit 29 determines that the combination of the current position information acquired by the position information acquisition unit 16 and the current time information acquired by the clock unit 15 is the position time information. It is determined whether or not the stop position time information stored in the storage unit 41 is applicable. If it is determined that this is the case, the power supply control unit 29 stops power supply from the power supply unit 19 to the communication unit 12.

As described above, the position time information storage unit 41 stores stop position time information indicating a combination of a position and a time at which power supply to the communication unit 12 should be stopped. The power supply control unit 29 uses the stop position time when the communication unit 12 is not used and the combination of the current position information acquired by the position information acquisition unit 16 and the current time information acquired by the clock unit 15 is When it is determined that the information is registered in the position time information storage unit 41 as information, the power supply from the power supply unit 19 to the communication unit 12 is stopped.
In this way, the power supply control unit 29 determines whether or not to stop the power supply to the communication unit 12 based on the combination of the position information and the time information, so that the communication function is turned on even in the same place. / OFF (whether or not power is supplied to the communication unit 12) can be switched. By stopping the power supply to the communication unit 12, the power consumption of the electronic device 1 can be reduced. Therefore, efficient power utilization in the electronic device 1 becomes possible. Further, the power supply control unit 29 automatically stops the power supply to the communication unit 12 and stops the communication function, so that a user operation for stopping the communication function becomes unnecessary. In this respect, the labor of the user can be reduced.

  Next, an embodiment of the present invention will be described in more detail with reference to FIG. 2 by taking as an example the case where the present invention is applied to a mobile phone. However, the application range of the present invention is not limited to a mobile phone. For example, the present invention can be applied to various electronic devices having communication functions such as a notebook computer (Personal Computer), a personal digital assistant (PDA), a game machine, and a car navigation system. It is.

  FIG. 2 is a schematic block diagram illustrating a functional configuration of the mobile phone according to the present embodiment. In the figure, a mobile phone 100 includes a mobile phone communication unit 111, a short-range wireless communication unit 112, a display unit 113, an operation input unit 114, a clock unit 115, a position information acquisition unit 116, and a power supply unit 119. And a main control unit 120 and a storage unit 140. The main control unit 120 includes a mobile phone communication control unit 121, a short-range wireless communication control unit 122, a display control unit 123, an input processing unit 124, a power supply control unit 129, an application execution unit 131, a position time And an information management unit 132. The storage unit 140 includes a position time information storage unit 141.

The mobile phone communication unit 111 communicates by connecting to a mobile phone network by wirelessly communicating with a base station of a mobile phone network (a mobile phone wireless communication network provided by a communication carrier).
The short-range wireless communication unit 112 performs wireless communication with a communication partner device located within a communication range. Specifically, the short-range wireless communication unit 112 has a relatively short communication range such as about 10 meters (m), for example, searches for a communication partner device located in the communication range, and detects the detected device. And establish a wireless communication connection.

  The short-range wireless communication unit 112 is an example of the communication unit 12 (FIG. 1). However, the present invention provides various communication units that consume power even when the actual data (data input / output to / from an application, etc.) is not transmitted / received, such as during standby, searching for a communication partner, or transmitting / receiving a control signal. And is not dependent on a specific communication method. For example, as the communication method of the short-range wireless communication unit 112, various short-range wireless communication methods such as Bluetooth (registered trademark), ZigBee (registered trademark), or UWB (Ultra Wide Band) can be used. Furthermore, the application range of the present invention is not limited to short-range wireless communication. For example, the present invention may be applied to a communication unit that uses a communication method other than short-range wireless communication, such as the mobile phone communication unit 111.

The display unit 113 displays various images such as moving images, still images, and text (characters).
The operation input unit 114 receives a user operation.
The clock unit 115 acquires current time information.
The position information acquisition unit 116 acquires its current position information (that is, current position information of the mobile phone 100).
The power supply unit 119 supplies power to each unit of the mobile phone 100 according to the control of the power supply control unit 129. In particular, the power supply unit 119 supplies power to the short-range wireless communication unit 112.

The storage unit 140 stores various data.
The position time information storage unit 141 stores stop position time information indicating a combination of a position and time at which power supply to the short-range wireless communication unit 112 should be stopped. Furthermore, the position time information storage unit 141 displays the appearance frequency as a combination of the current position information acquired by the position information acquisition unit 116 and the current time information acquired by the clock unit 115 for each combination of position information and time information. The appearance frequency information shown is stored.

  FIG. 3 is an explanatory diagram showing a data structure of information stored in the position time information storage unit 141. The position time information storage unit 141 can store a plurality of pieces of data in which position information, time information, latest appearance date information, appearance frequency information, and registration flags are associated with each other. The information stored in the position time information storage unit 141 is used by the power supply control unit 129 to determine whether or not the current position and time correspond to a position and time when the short-range wireless communication unit 112 is not used. It is done.

The position information column stores the current position information acquired by the position information acquisition unit 116 when the power supply control unit 129 determines that the short-range wireless communication unit 112 is not used. Hereinafter, the fact that the power supply control unit 129 determines that the short-range wireless communication unit 112 is not used is referred to as “communication not used”. The power supply control unit 129 determines that communication is not used when the short-range wireless communication unit 112 has not transmitted or received actual data for a predetermined time or longer.
The time information column stores current time information acquired by the clock unit 115 when communication is not used.

Whether the registration flag field uses a combination of the position information stored in the position information field and the time information stored in the time information field as a criterion for determining the position and time when the short-range wireless communication unit 112 is not used A registration flag which is a flag indicating whether or not is stored. Here, the power supply control unit 129 has a frequency of appearance as a position and a time when communication is not used in a combination of the position information and the time information stored in the position / time information storage unit 141 at a predetermined threshold value or more. Is used as a criterion for determining the position and time when the short-range wireless communication unit 112 is not used. The registration flag is a flag indicating whether the appearance frequency is equal to or higher than a threshold value.
In the following, the value of the registration flag indicating that the appearance frequency is equal to or higher than the threshold value is set to “1”. Further, the value of the registration flag indicating that the appearance frequency is less than the threshold value is set to “0”. The initial value of the registration flag (the value when the corresponding data is generated) is set to “0”.

  In the following, of the information stored in the position / time information storage unit 141, information employed as a criterion for determining the position and time when the short-range wireless communication unit 112 is not used is referred to as “stop position time information”. . On the other hand, of the information stored in the position / time information storage unit 141, information that is not adopted as a position and time determination criterion where the short-range wireless communication unit 112 is not used is referred to as “pre-registration information”. Further, stop position time information and pre-registration information are collectively referred to as “position time information”.

  The appearance frequency information column stores the appearance frequency information indicating the appearance frequency as the position and time when communication is not used, of the combination of the position indicated by the position information in the position information column and the time indicated by the time information in the time information column. To do. This appearance frequency information is used by the location time information management unit 132 to update the registration flag.

  The latest appearance date information field stores information on the latest date when the combination of the position indicated by the position information in the position information field and the time indicated by the time information in the time information field appears as the position and time when communication is not used. To do. This latest appearance date information is used by the location time information management unit 132 to update the appearance frequency information.

Note that the position / time information management unit 132 has a possibility that the position and time stored in the position / time information storage unit 141 coincide with the position acquired by the position information acquisition unit 116 and the time acquired by the clock unit 115. Compares the position and time with a certain range.
For example, the position time information storage unit 141 stores latitude and longitude as position information in units of seconds. The location time information storage unit 141 stores time information in units of 10 minutes. Then, the position time information management unit 132 compares the current position information acquired by the position information acquisition unit 116 with the position information included in the position time information to the second unit, and the current time information acquired by the clock unit 115 and the position time The time information included in the information is compared up to 10 minutes, and it is determined whether or not they match.

The main control unit 120 controls each unit of the mobile phone 100 to provide various functions to the user.
The mobile phone communication control unit 121 controls the mobile phone communication unit 111 to perform communication. The near field communication control unit 122 controls the near field communication unit 112 to perform communication. The display control unit 123 controls the display unit 113 to display various images. The input processing unit 124 detects the user operation received by the operation input unit 114 and outputs the detected user operation to the application execution unit 131 as input data.
The application execution unit 131 executes various application programs stored in the storage unit 140 and provides an application function (a function obtained by executing the application program) to the user.

The power supply control unit 129 uses a combination of the current position information acquired by the position information acquisition unit 116 and the current time information acquired by the clock unit 115 when the short-range wireless communication unit 112 is not used and the stop position If it is determined that the time information is registered in the location time information storage unit 141, the power supply from the power source unit 119 to the short-range wireless communication unit 112 is stopped.
Here, the power supply control unit 129 obtains the status information of the short-range wireless communication unit 112 acquired from the short-range wireless communication control unit 122 and the current position and current position time acquired from the position time information management unit 132. Based on the registration status information in the information storage unit 141, the short-range wireless communication unit 112 is not used, and the current position information acquired by the position information acquisition unit 116 and the current time information acquired by the clock unit 115 It is determined whether or not the combination is registered in the position time information storage unit 141 as stop position time information.

  Specifically, when the power supply control unit 129 detects that the short-range wireless communication unit 112 has not transmitted or received actual data for a predetermined time or longer, the power supply control unit 129 detects the current position and the current time. The position time information management unit 132 is requested to determine whether or not the combination is registered as stop position time information. Then, when the power supply control unit 129 receives the determination result that it is registered from the position time information management unit 132, the short-range wireless communication unit 112 is not used and the position information acquisition unit 116 acquires it. It is determined that the combination of the current position information and the current time information acquired by the clock unit 115 is registered in the position time information storage unit 141 as stop position time information.

  As described above, the power supply control unit 129 controls power supply to the short-range wireless communication unit 112 based on whether or not a combination of the current position and the current time is registered as stationary position time information. Thereby, the power supply control unit 129 can detect a frequent pattern of positions and times when the short-range wireless communication unit 112 is not used, and stop the power supply to the short-range wireless communication unit 112. Therefore, the power supply control unit 129 is a position where the short-range wireless communication unit 112 is not used from the action pattern that the user repeats at the same position and time, such as sleeping in the same room, attending a meeting held every day in the same meeting room. In addition, the power supply to the short-range wireless communication unit 112 can be stopped by detecting the time.

The location time information management unit 132 manages the location time information stored in the location time information storage unit 141. In particular, the position time information management unit 132 newly stores the position time information, deletes the position time information, updates the appearance frequency information, and determines whether the current position and the current time and the stop position time information match. Do.
Specifically, when the power supply control unit 129 determines that the short-range wireless communication unit 112 is not used, if there is no position time information corresponding to the combination of the current position information and the current time information, the position time information The management unit 132 newly generates location time information and stores (stores) it in the location time information storage unit 141. At that time, the location time information management unit 132 stores the current location information acquired by the location information acquisition unit 116 in the location information column of the location time information. Further, the position time information management unit 132 stores the current time information acquired by the clock unit 115 in the time information column of the position time information. In addition, the position time information management unit 132 stores the current date information acquired by the clock unit 115 in the latest appearance date information column of the position time information. In addition, the position time information management unit 132 stores appearance frequency information of the value “1” (that is, indicates the number of appearances once) in the appearance frequency column of the position time information. In addition, the location time information management unit 132 stores a registration flag having a value of “0” (that is, pre-registration information) in the registration flag column of the location time information.

  In addition, the location time information management unit 132 deletes the location time information stored in the location time information storage unit 141 that has a low appearance frequency as information indicating the location and time when communication is not used. Specifically, the position time information management unit 132 deletes the position time information whose elapsed days from the latest appearance date (difference from the current date) is greater than or equal to a predetermined number of days.

  Here, the position time information management unit 132 also has a low appearance frequency as information indicating the position and time when communication is not used for the stop position time information among the position time information stored in the position time information storage unit 141. Delete things. Accordingly, the position time information management unit 132 matches the current position information acquired by the position information acquisition unit 116 with respect to the combination of the position information stored in the position time information storage unit 141 and the time information, and If it is determined that the time information matches the current time information acquired by the clock unit 115 and the state determined not to use communication has not appeared for a predetermined period or longer, the combination of the position information and the time information The registration as stop position time information is deleted.

  When determining that communication is not used, the location time information management unit 132 has location time information corresponding to a combination of the current location information and the current time information, and the location time information is the deletion target described above. If it is determined that it is not, 1 is added to the appearance frequency information of the position time information. That is, the position time information management unit 132 counts up the appearance frequency information of the position time information.

  Further, the position time information management unit 132 determines whether a combination of the current position and the current time is registered as stop position time information in response to a request from the power supply control unit 129. Specifically, the position time information management unit 132 matches the position indicated by the position information among the stop position time information stored in the position time information storage unit 141 and the time indicated by the time information is the current time. It is determined whether or not there is something that matches the time. When it is determined that the corresponding stop position time information exists, the position time information management unit 132 outputs a determination result indicating that it is registered to the power supply control unit 129. On the other hand, when it is determined that the corresponding stop position time information does not exist, the position time information management unit 132 outputs a determination result that it is not registered to the power supply control unit 129.

  FIG. 4 is a schematic configuration diagram showing a device configuration of the mobile phone 100. In the figure, a mobile phone 100 includes a mobile phone communication circuit 151, a short-range wireless communication circuit 152, a display device 153, an input device 154, a clock device 155, a GPS (Global Positioning System) device 156, a power supply. A device 159, a CPU 160, and a storage device 180 are provided.

The mobile phone communication circuit 151 is a communication circuit that wirelessly communicates with a base station of a mobile phone network, modulates transmission data into a transmission wave of the mobile phone network, transmits the data, and demodulates a reception wave to transfer the reception data to the CPU 160. Output to. The mobile phone communication circuit 151 implements the mobile phone communication unit 111.
The short-range wireless communication circuit 152 is a communication circuit that performs short-range wireless communication with a communication partner device. The short-range wireless communication circuit 152 modulates transmission data into a transmission wave of short-range wireless communication and transmits the received data. Is output to the CPU 160. The short-range wireless communication circuit 152 implements the short-range wireless communication unit 112.

The display device 153 includes a display screen such as a liquid crystal panel or an organic EL (Organic Electro Luminescence) panel, and displays various images according to an image signal output from the CPU 160. The display device 153 implements the display unit 113.
The input device 154 includes, for example, a touch sensor (touch panel) installed on the display screen of the display device 153 or an input device such as an operation key, receives a user operation, and outputs a signal indicating the received operation to the CPU 160. To do. The input device 154 implements the operation input unit 114.

The timepiece device 155 has an oscillation circuit, generates a clock signal, counts the clock signal, and acquires current time information (calculates the current time). The clock device 155 implements the clock unit 115.
The GPS device 156 receives a GPS signal from a GPS satellite and measures the current position of the GPS device 156 itself (accordingly, the current position of the mobile phone 100). The GPS device 156 implements the position information acquisition unit 116.
The power supply device 159 includes a secondary battery and supplies power to each unit of the mobile phone 100. The power supply device 159 implements a power supply unit 119.

The CPU 160 implements the main control unit 120 by reading a program from the storage device 180 and executing it, and controls each unit of the mobile phone 100.
The storage device 180 includes, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory), and stores various data such as a program executed by the CPU 160. The storage device 180 implements the storage unit 140.

Next, the operation of the mobile phone 100 will be described with reference to FIGS.
FIG. 5 is a flowchart illustrating a procedure of processes performed by the power supply control unit 129 and the location time information management unit 132. The power supply control unit 129 and the location time information management unit 132 perform the processing in FIG. 5 when the short-range wireless communication unit 112 is supplied with power from the power supply unit 119 and the short-range communication function is ON. .

  In the processing of the figure, the power supply control unit 129 determines whether or not the communication is not used based on the status information of the short-range wireless communication unit 112 from the short-range wireless communication control unit 122 (step S101). ). Specifically, the power supply control unit 129 transmits or receives actual data based on the state information of the short-range wireless communication unit 112 from the short-range wireless communication control unit 122. It is determined whether or not there is no transmission and no reception is performed. Then, the power supply control unit 129 determines that the communication is not used when the duration of the state in which the short-range wireless communication unit 112 is not transmitting or receiving actual data is equal to or longer than the unused threshold time, and otherwise In the case of, it is determined that the communication is not used. Here, the non-use threshold time is a constant indicating a predetermined time.

If it is determined in step S101 that the communication is not unused (step S101: NO), the process returns to step S101.
On the other hand, when it is determined in step S101 that the communication is not used (step S101: YES), the power supply control unit 129 determines whether or not the position information acquisition unit 116 can acquire the current position information (step S102). ). When it is determined that the current position information cannot be acquired (step S102: NO), the process returns to step S101.

On the other hand, when it is determined in step S102 that the position information acquisition unit 116 can acquire the current position information (step S102: YES), the power supply control unit 129 stops the stop position time information that matches the current position and the current time. The position time information management unit 132 is requested to determine whether or not there is (step S103). Here, that the position time information matches the current position and the current time means that in the position time information, the position indicated by the position information matches the current position, and the time indicated by the time information matches the current time.
Receiving the request from the power supply control unit 129, the location time information management unit 132 acquires the current location information from the location information acquisition unit 116, and acquires the current time information from the clock unit 115 (step S104).

  Then, the position time information management unit 132 determines whether there is position time information to be deleted (step S105). Specifically, the location time information management unit 132 includes the location information and the time information of the location time information among the location time information stored in the location time information storage unit 141. And the number of days elapsed since the latest appearance date is determined to be greater than or equal to the deletion threshold period. Here, the deletion threshold period is a constant indicating a predetermined number of days.

When it is determined that there is position time information to be deleted (step S105: YES), the position time information management unit 132 deletes the position time information corresponding to the position time information to be deleted from the position time information storage unit 141. (Step S106).
Next, the position time information management unit 132 determines whether there is stop position time information that matches the current position information and the current time information acquired in step S104 (step S107). Specifically, the position time information management unit 132 includes the position information and time information of the stop position time information among the stop position time information stored in the position time information storage unit 141, respectively, as the current position information and the current time. It is determined whether there is a match with the information.

When it is determined that there is stop position time information that matches the current position information and current time information (step S107: YES), the position time information management unit 132 responds to the determination request in step S103 as a suitable stop position time. The power supply control unit 129 is answered that there is information (step S111).
Receiving the answer, the power supply control unit 129 controls the power supply unit 119 to stop the power supply to the short-range wireless communication unit 112, thereby stopping the short-range wireless communication function (step S112).
Thereafter, the process of FIG.

  On the other hand, when it is determined in step S107 that there is no stop position time information that matches the current position information and current time information (step S107: NO), the position time information management unit 132 updates the appearance frequency information or the position time information. Is newly stored (step S112). Specifically, the location time information management unit 132 searches for the location time information stored in the location time information storage unit 141 that matches the current location information and the current time information acquired in step S104. When suitable position time information is obtained, the position time information management unit 132 adds 1 to the value of the appearance frequency information of the position time information (counts up the number of appearances). On the other hand, if the suitable position time information cannot be obtained, the position time information management unit 132 newly generates position time information and stores it in the position time information storage unit 141. At that time, as described above, the position time information management unit 132 stores the current position information acquired by the position information acquisition unit 116 in the position information column of the position time information. Further, the position time information management unit 132 stores the current time information acquired by the clock unit 115 in the time information column of the position time information. In addition, the position time information management unit 132 stores the current date information acquired by the clock unit 115 in the latest appearance date information column of the position time information. In addition, the location time information management unit 132 stores the appearance frequency information of the value “1” in the appearance frequency column of the location time information. In addition, the location time information management unit 132 stores a registration flag having a value “0” in the registration flag column of the location time information.

  Then, the location time information management unit 132 refers to the appearance frequency information of the location time information that has been processed in step S107, and determines whether the appearance frequency is equal to or higher than the registration threshold frequency (step S122). Here, the registration threshold frequency is a constant indicating a predetermined frequency (the number of times in the present embodiment).

  When it is determined that the appearance frequency is equal to or higher than the registration threshold frequency (step S122: YES), the position time information management unit 132 registers the position time information as stop position time information (step S123). Specifically, the location time information management unit 132 sets the value of the registration flag of the location time information to “1”. However, the position / time information management unit 132 performs only registration in the current determination, and holds the determination result in step S107 as to whether or not there is stop position time information that matches the current position information and the current time information.

And the position time information management part 132 replies to the electric power supply control part 129 that there is no suitable stop position time information as a reply with respect to the determination request | requirement in step S103 (step S124).
Thereafter, the process returns to step S101.
On the other hand, when it is determined in step S105 that there is no position time information to be deleted (step S105: NO), the process proceeds to step S107.
On the other hand, when it determines with appearance frequency being less than registration threshold frequency in step S122 (step S122: NO), it progresses to step S124.

  FIG. 6 is a sequence diagram illustrating an example of an operation in which the mobile phone 100 detects non-use of communication and stops the short-range wireless communication function. The portable information terminal 200 shown in the figure has a short-range wireless communication function, but does not have a function of directly connecting to a network. Therefore, the mobile information terminal 200 communicates by connecting to the mobile phone network via the mobile phone 100.

In FIG. 6, first, the cellular phone 100 transmits a communication establishment request to the portable information terminal 200 using the short-range wireless communication function (sequence S201).
In response to this communication establishment request, the mobile information terminal 200 authenticates the mobile phone 100. In the example of FIG. 6, the portable information terminal 200 transmits a response indicating that the authentication is successful and communication is established to the mobile phone 100 (sequence S202). Thereby, communication is established between the mobile phone 100 and the portable information terminal 200.

Mobile information terminal 200 transmits data to the communication telephone network via mobile phone 100 (sequences S203 and S205), and receives data from the communication telephone network (sequences S204 and S206). In the example of FIG. 6, the portable information terminal 200 repeats such data transmission / reception.
On the other hand, when the non-use threshold time elapses from sequence S206 in which data was transmitted / received to / from portable information terminal 200 lastly, mobile phone 100 (power supply control unit 129) detects non-use of communication (sequence S207). This sequence S207 corresponds to step S101: YES in FIG.

Furthermore, the cellular phone 100 (position time information management unit 132) detects that the current position information and stop position time information that matches the current time information are registered in the position time information storage unit 141 (sequence S208). ). This sequence S208 corresponds to step S107: YES in FIG.
Then, the cellular phone 100 (power supply control unit 129) stops power supply from the power supply unit 119 to the short-range wireless communication unit 112 to stop the short-range wireless communication function (sequence S209). This sequence S209 corresponds to step S112 in FIG.

  As described above, when the mobile phone 100 (power supply control unit 129) determines that communication is not used and that stop position time information corresponding to the current position and the current time is registered, the short-range wireless communication Stop function. Accordingly, as described with reference to FIG. 2, the power supply control unit 129 detects the position and time when the short-range wireless communication unit 112 is not used from the behavior pattern that the user repeats at the same position and time. The power supply to the short-range wireless communication unit 112 can be stopped. When the power supply to the short-range wireless communication unit 112 is stopped, the power consumption of the mobile phone 100 can be reduced.

  Note that the value of the non-use threshold time, the registration threshold frequency, and the deletion threshold period can be set to various values according to the user's life pattern. For example, it is conceivable that the value of the deletion threshold period is set according to the current position when communication is not used and the appearance frequency as the current time, which are requested from the stop position time information. For example, when the value of the deletion threshold period is set to 8 days, that is, the registration of the stop position time information in which the current position and the appearance as the current time when communication is not used is weekly or less frequently is deleted. be able to.

As described above, the position time information storage unit 141 stores stop position time information indicating a combination of a position and a time at which power supply to the short-range wireless communication unit 112 should be stopped. Then, when the short-range wireless communication unit 112 is not used, the power supply control unit 129 determines that the combination of the current position information acquired by the position information acquisition unit 116 and the current time information acquired by the clock unit 115 is the position It is determined whether or not the stop position time information stored in the time information storage unit 141 is applicable.
As described above, the power supply control unit 129 determines whether to stop the power supply to the short-range wireless communication unit 112 based on the combination of the position information and the time information, so that communication can be performed even in the same place. The function can be switched ON / OFF (whether or not power is supplied to the short-range wireless communication unit 112). By stopping the power supply to the short-range wireless communication unit 112, the power consumption of the mobile phone 100 can be reduced. Therefore, efficient power utilization in the mobile phone 100 is possible. In addition, the power supply control unit 129 automatically stops power supply to the short-range wireless communication unit 112 and stops the short-range wireless communication function, so that a user operation for stopping the short-range wireless communication function is unnecessary. It becomes. In this respect, the labor of the user can be reduced.

In addition, the position time information storage unit 141 stores the current position information acquired by the position information acquisition unit 116 and the current time information acquired by the clock unit 115 for each combination of position information and time information (for each position time information). Appearance frequency information indicating the appearance frequency as a combination is stored. The power supply control unit 129 is a combination of the current position information acquired by the position information acquisition unit and the current time information acquired by the timepiece unit when the short-range wireless communication unit 112 is not used. If it is determined that the frequency of occurrence is equal to or greater than a predetermined threshold, the power supply to the short-range wireless communication unit 112 is stopped.
In other words, when the power supply control unit 129 determines that the stop position time information corresponding to the communication non-use and the current position and the current time is registered, the short-range wireless communication function is stopped. Thereby, the power supply control unit 129 detects the position and time when the short-range wireless communication unit 112 is not used from the behavior pattern that the user repeats at the same position and time, and supplies power to the short-range wireless communication unit 112. Can be stopped. In this regard, the power supply control unit 129 can detect the position and time when the short-range wireless communication unit 112 is not used with higher accuracy and stop the power supply to the short-range wireless communication unit 112.

In addition, the position time information management unit 132 matches the current position information acquired by the position information acquisition unit 116 with respect to the combination of the position information and time information stored in the position time information storage unit 141, and the time When it is determined that the state in which the information matches the current time information acquired by the clock unit 115 and the short-range wireless communication unit 112 is not used has not appeared for a predetermined period or longer, the position information The registration as the stop position time information in combination with the time information is deleted.
Thereby, the position time information management unit 132 can delete the registration of the stop position time information that no longer corresponds to the position and time at which the short-range wireless communication unit 112 should be stopped due to a change in the user's behavior pattern. . When the location time information management unit 132 performs the deregistration, the power supply control unit 129 detects the location and time when the short-range wireless communication unit 112 is not used with higher accuracy, and sends the information to the short-range wireless communication unit 112. The power supply can be stopped.

A program for realizing all or a part of the functions of the power supply control unit 29, the position time information management unit 132, and the main control unit 120 is recorded on a computer-readable recording medium and recorded on the recording medium. Each unit may be processed by reading the program into a computer system and executing the program. Here, the “computer system” includes an OS and hardware such as peripheral devices.
Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Electronic device 12 Communication part 15,115 Clock part 16,116 Position information acquisition part 19,119 Power supply part 29,129 Power supply control part 41,141 Position time information storage part 100 Cellular phone 111 Cellular phone communication part 112 Short-range wireless Communication unit 113 Display unit 114 Operation input unit 120 Main control unit 121 Mobile phone communication control unit 122 Short-range wireless communication control unit 123 Display control unit 124 Input processing unit 131 Application execution unit 132 Location time information management unit 140 Storage unit

Claims (5)

A communication department;
A power supply unit for supplying power to the communication unit;
A position time information storage unit for storing stop position time information indicating a combination of a position and a time at which power supply to the communication unit should be stopped;
A location information acquisition unit that acquires its current location information;
A clock section for acquiring current time information;
A combination of the current position information acquired by the position information acquisition unit and the current time information acquired by the clock unit is the position time information as the stop position time information when the communication unit is not used. When it is determined that it is registered in the storage unit, a power supply control unit that stops power supply from the power supply unit to the communication unit;
An electronic apparatus comprising: For each combination of position information and time information, the position time information storage unit displays an appearance frequency as a combination of the current position information acquired by the position information acquisition unit and the current time information acquired by the clock unit. Memorize the appearance frequency information
In the power supply control unit, the communication unit is not used, and the appearance frequency of the combination of the current position information acquired by the position information acquisition unit and the current time information acquired by the clock unit is If it is determined that it is equal to or greater than a predetermined threshold, power supply to the communication unit is stopped.
The electronic device according to claim 1.   Regarding the combination of the position information and the time information stored in the position time information storage unit, the position information matches the current position information acquired by the position information acquisition unit, and the time information is acquired by the clock unit. If it is determined that the state determined to match the current time information and the communication unit is not used does not appear for a predetermined period or longer, the combination of the position information and the time information 3. The electronic apparatus according to claim 2, wherein the registration as the stop position time information is deleted. A communication department;
A power supply unit for supplying power to the communication unit;
A position time information storage unit for storing stop position time information indicating a combination of a position and a time at which power supply to the communication unit should be stopped;
A power supply control method for an electronic device comprising:
A position information acquisition step of acquiring current position information of the electronic device;
A current time acquisition step for acquiring current time information;
A combination of the current position information acquired in the current time acquisition step and the current position information acquired in the position information acquisition step is not used as the stop position time information. A power supply control step of stopping power supply from the power supply unit to the communication unit when it is determined that the position and time information storage unit is registered;
A power supply control method comprising: A communication department;
A power supply unit for supplying power to the communication unit;
A position time information storage unit for storing stop position time information indicating a combination of a position and a time at which power supply to the communication unit should be stopped;
In a computer as an electronic device having
A position information acquisition step of acquiring current position information of the electronic device;
A current time acquisition step for acquiring current time information;
A combination of the current position information acquired in the current time acquisition step and the current position information acquired in the position information acquisition step is not used as the stop position time information. A power supply control step of stopping power supply from the power supply unit to the communication unit when it is determined that the position and time information storage unit is registered;
A program for running

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