JP5004352B2 - Mobile station apparatus, mobile station apparatus control method, and base station apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide: a mobile station device in which the power to be consumed for positioning can be reduced; a mobile station device control method; a mobile station device control program; and a base station device. <P>SOLUTION: The mobile station device comprises: a positioning signal receiving section for receiving a positioning signal when a positioning instruction is input; a position calculating section for calculating a position of the present mobile station device from the positioning signal received by the positioning signal receiving section; a storage section for storing predetermined position information; a positioning instruction section for outputting the positioning instruction to the positioning signal receiving section; and a positioning timing determining section for determining timing to output the positioning instruction. The mobile station device is characterized in that the positioning timing determining section determines the timing to output the positioning instruction in accordance with a distance between the position of the present mobile station device calculated by the position calculating section and the predetermined position stored in the storage section. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a mobile station apparatus, a mobile station apparatus control method, a mobile station apparatus control program, and a base station apparatus.

In recent years, there has been an increasing demand for small terminals and information terminals having a GPS (Global Positioning System) function used for purposes such as crime prevention and emergency response. For example, when an emergency call is sent from a mobile phone to an emergency call organization such as the police or fire department, a caller location notification that automatically notifies the location of the call to the emergency call organization to which the call is connected System installation has begun.
The reason for this increasing demand is that children and the elderly can have small terminals with GPS functions and information terminals so that parents and other relatives can immediately know where they are in an emergency. The provision of services has been enhanced.
As information terminals with a GPS function have become widespread, various services combining a GPS function and a mobile phone communication function have been provided and studied. As one of the services, a system that acquires position information with a mobile phone with a GPS function and uses the position information to control various devices connected to a network has been studied. For example, Patent Document 1 proposes a system that automatically controls home appliances at home based on position information acquired by a mobile phone with a GPS function. Patent Document 2 proposes a system that activates a function mounted on a mobile phone by using position information acquired by a mobile phone with a GPS function as a trigger.
On the other hand, in order to provide a service of a mobile phone with a GPS function, it is necessary to measure the location information of the mobile phone with GPS at any time, and thus the power of the mobile phone is consumed. In Patent Document 3 and Patent Document 4, the power consumption of the GPS mobile phone is reduced based on the moving speed of the mobile phone. For example, when the moving speed is low, the time interval of positioning is increased to reduce the number of times of GPS positioning, thereby reducing the power consumption consumed by GPS positioning.
JP 2002-109203 A JP 2002-186005 A JP 2006-157402 A JP 2002-215268 A

  However, in a system (hereinafter referred to as a network device control system) that acquires position information with a mobile phone with a GPS function and controls a device connected to a network (hereinafter referred to as a network device) using the position information, A mobile phone with a GPS function may be located in a place where there is little need for GPS positioning. Even when the mobile phone with the GPS function is located in such a place, there is a problem that the mobile phone with the GPS function performs positioning at a time interval depending on the moving speed and consumes power.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a mobile station device, a mobile station device control method, a mobile station device control program, and a base station device that can reduce power consumption consumed by GPS positioning. It is to provide.

The present invention has been made to solve the above-described problem, and according to one aspect of the present invention, when a positioning command is input, a positioning signal receiving unit that receives a positioning signal and the positioning signal receiving unit receive the positioning signal. A position calculation unit that calculates the position of the mobile station apparatus from the positioning signal, a storage unit that stores predetermined position information, a positioning command unit that outputs the positioning command to the positioning signal reception unit, and the positioning command that is output A positioning timing determination unit that determines a timing to perform, and a reception quality calculation unit that calculates a reception signal level indicating reception quality of a transmission signal transmitted by a predetermined base station apparatus , and the positioning timing determination unit includes the reception quality based on the magnitude of the received signal level calculation unit has calculated, to output the positioning command according to the distance between the predetermined position where the storage unit and the position of the mobile station apparatus the position calculator has calculated stores A mobile station apparatus characterized by determining a timing.

Further, according to one aspect of the present invention , when a positioning command is input, a positioning signal receiving unit that receives a positioning signal, and a position calculation that calculates the position of the mobile station apparatus from the positioning signal received by the positioning signal receiving unit A storage unit that stores a predetermined path along which the mobile station device moves, a positioning command unit that outputs the positioning command to the positioning signal receiving unit, and a positioning timing determination unit that determines a timing for outputting the positioning command The positioning timing determination unit determines the timing for outputting the positioning command according to the distance between the position of the mobile station apparatus calculated by the position calculation unit and the predetermined path stored in the storage unit. This is a mobile station apparatus.

Further, according to one aspect of the present invention, in the mobile station apparatus, when a positioning command is input, the positioning timing determination unit further detects the speed detection when the positioning signal reception unit fails to receive the positioning signal. When the moving speed detected by the unit is fast, the time for outputting the next positioning command is determined as an early time, or when the moving speed is slow, the time for outputting the next positioning command is set as a slow time. It is characterized by determining to.

One embodiment of the present invention is characterized in that the mobile station device further includes a network device control unit that controls a device connected to the network.

According to another aspect of the present invention, the mobile station apparatus further includes a control unit that corrects a distance between the position of the mobile station apparatus calculated by the position calculation unit and a predetermined position stored in the storage unit. The network device control unit controls a device connected to the network based on the corrected distance.

In addition, according to one aspect of the present invention, in the mobile station apparatus, the control unit determines a correction amount of the correction distance based on a positioning estimation error.

Further, according to one aspect of the present invention, in the mobile station device, the network device control unit includes a moving speed of the mobile station device detected by the speed detecting unit, and a position of the mobile station device calculated by the position calculating unit. The arrival time at the predetermined position is calculated based on the distance from the predetermined position stored in the storage unit, and the network device is controlled based on the arrival time.

Further, according to one aspect of the present invention, in a communication system using a mobile station device with a positioning function and a base station device, a positioning reception signal transmitted from the mobile station device is received and input to the mobile station device A transmission / reception unit that transmits positioning timing information, a position calculation unit that calculates the position of the mobile station device from a positioning signal received by the transmission / reception unit, a storage unit that stores predetermined position information, and a timing at which a positioning command is output A positioning timing determination unit that determines and outputs the positioning timing information; and a reception quality calculation unit that calculates a reception signal level indicating a reception quality of a transmission signal transmitted by a predetermined base station apparatus, the positioning timing determination Based on the size of the received signal level calculated by the reception quality calculation unit, the location of the mobile station apparatus calculated by the location calculation unit and the storage unit A base station apparatus and determines the timing of outputting the positioning instruction according to the distance between a predetermined position of憶.

Further, according to one aspect of the present invention, in a communication system using a mobile station device with a positioning function and a base station device, a positioning reception signal transmitted from the mobile station device is received and input to the mobile station device Transmission / reception unit for transmitting positioning timing information, a position calculation unit for calculating the position of the mobile station device from the positioning signal received by the transmission / reception unit, a storage unit for storing a predetermined path along which the mobile station device moves, and a positioning command A positioning timing determining unit that determines and outputs the positioning timing information that is a timing for outputting the positioning timing, and the positioning timing determining unit stores the position of the mobile station apparatus calculated by the position calculating unit and the storage unit The base station apparatus is characterized in that the timing for outputting the positioning command is determined according to a distance from a predetermined route.

In addition, according to an aspect of the present invention, the base station device further includes a network device control unit that controls a device connected to the network.

According to another aspect of the present invention, the base station device further includes a control unit that corrects a distance between the position of the mobile station device calculated by the position calculation unit and a predetermined position stored in the storage unit. The network device control unit controls a device connected to the network based on the corrected distance.

In addition, according to one aspect of the present invention, in the base station apparatus, the control unit determines a correction amount of the correction distance based on a positioning estimation error.

Further, according to one aspect of the present invention, in the base station device, the network device control unit includes a moving speed of the mobile station device detected by the speed detecting unit, and a position of the mobile station device calculated by the position calculating unit. The arrival time at the predetermined position is calculated based on the distance from the predetermined position stored in the storage unit, and the network device is controlled based on the arrival time.

Further, according to one aspect of the present invention, when a positioning command is input, a first process of receiving a positioning signal;
A second step of calculating the position of the mobile station apparatus from the positioning signal received by the first step;
A third step of storing predetermined position information, a fourth step of calculating a received signal level indicating reception quality of a transmission signal transmitted by the predetermined base station device, and a received signal level calculated by the fourth step The timing for outputting the positioning command is determined according to the distance between the position of the mobile station apparatus calculated by the second process and the predetermined position stored by the third process based on the magnitude of A sixth process for outputting the positioning command at a timing determined by the fifth process;
Is a mobile station apparatus control method .

Further, according to one aspect of the present invention, when a positioning command is input, a first process of receiving a positioning signal and a second process of calculating a position of the mobile station apparatus from the positioning signal received by the first process Depending on the distance between the process, the third process for storing a predetermined path along which the mobile station apparatus moves, and the position of the mobile station apparatus calculated by the second process and the predetermined path stored by the third process The mobile station apparatus control method has a fourth process for determining the timing for outputting the positioning command and a fifth process for outputting the positioning command at the timing determined by the fourth process.

  According to the present invention, it is possible to determine the timing for positioning based on the positional relationship between a predetermined position area and the mobile station apparatus, and to reduce the number of positioning times at positions where positioning is unnecessary, so the mobile station apparatus is necessary for positioning. Power consumption and battery consumption can be reduced.

(First embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing a network device control system to which the present invention is applied.
The mobile phone A with a GPS function has a function of acquiring position information of the mobile phone A by positioning using a GPS satellite (hereinafter referred to as GPS positioning). The mobile phone A controls the network device based on the position information. Specifically, the mobile phone A transmits a command for controlling the location information and the network device to the base station device B, and the base station device B is a mobile phone network such as a radio access network, a core network, and a gateway, Further, the home C network device is automatically controlled by transmitting control information to the home C network device via the Internet.

  For example, the mobile phone A automatically controls a power source of a home appliance such as an air conditioner in the home C and a device that manages the locking of the entrance door and window of the home C. Note that the automatic includes a semi-automatic operation in which the owner of the mobile phone A presses the confirmation button to permit the operation.

Next, the relationship between the position of the mobile phone A and the control of the network device will be described. FIG. 2 is an explanatory diagram for explaining the relationship between the position of the mobile phone A and the control of the network device.
First, the mobile phone A registers predetermined location information, and controls the network device based on the distance d between the location of the mobile phone A and the registered location. The location information registration method includes, for example, a method in which the mobile phone A performs GPS positioning when the owner of the mobile phone A presses the mobile phone A button, and the location information is registered based on the GPS positioning result. Alternatively, a method in which the owner of the mobile phone A moves the cursor on the screen displayed on the screen of the mobile phone A and designates a point by pressing a button, and registers the position information of the designated point. Alternatively, there is a method in which the owner of the mobile phone A inputs an address and registers position information of the input address.
In the present embodiment, the mobile phone A registers the latitude and longitude, which are location information of the home C, and the predetermined distance R _0, and enters the area D that is an area of the predetermined distance R ₀ centered on the home C. It is assumed that the network device at home C is controlled based on this.

Here, a region surrounded by a radius R ₀ -α obtained by correcting the radius R ₀ of the registered area D is a correction area E, and a region surrounded by a radius R ₀ + β is a correction area F.
When the mobile phone A located outside the area D moves to a position within the correction area E, the mobile phone A determines that the mobile phone A is “approaching” the home C and is located within the area D. When the mobile phone A moves to a position outside the correction area F, it is determined to “go away” (hereinafter referred to as position determination).
For example, when it is determined that the mobile phone A is “approaching” to the home C, the mobile phone A turns on the power of a network device such as an air conditioner at home. On the other hand, if the mobile phone A determines that it is going “away from” the home C, it turns off the power of a network device such as an air conditioner at home, or uses a device that manages the locking of the entrance door or window of the home C. Lock the entrance doors and windows.

Α and β are values determined by constants or GPS positioning estimation errors. For example, in GPS positioning, a positioning level in which the degree of error is graded by level can be acquired. In this case, if the positioning level is 3, α is 50 m, if the positioning level is 2, α is 300 m, and if the positioning level is 1, α is 1000 m. The main reason why α and β are provided is that, if α and β are not provided, the judgment of “approaching” and “moving away” is frequently switched near the distance R ₀ , and the operation of the network device controlled by the judgment Network that is controlled based on the judgment that the network device is frequently changed and a burden is imposed on the network device, so that the burden is prevented and the judgment of “approaching” and “moving away” is erroneous due to the positioning estimation error. The burden is placed on the device, which is to prevent the burden.

  The GPS function mobile phone A of the present embodiment will be described. FIG. 3 is a schematic block diagram showing the configuration of the mobile phone A with GPS function according to the present embodiment. The mobile phone A according to the present embodiment includes a GPS unit 100 and a mobile phone unit 110. The GPS unit 100 includes a GPS antenna 101, a GPS reception unit 102, a position calculation unit 103, and a GPS power management unit 104. The cellular phone unit 110 includes an antenna 111, a transmission / reception unit 112, a storage unit 113, and a control unit 114. Further, the control unit 114 includes a positioning command unit 115, a positioning timing determination unit 116, and a network device control unit 117. Of course, the mobile phone A has a normal call function with another phone.

The GPS power management unit 104 turns on the GPS unit 100 based on a command for starting GPS positioning input from the control unit 114 (hereinafter referred to as a positioning command), and when the GPS unit 100 is turned on, The GPS receiver 102 receives GPS signals from GPS satellites via the GPS antenna 101, demodulates them, and outputs them to the position calculator 103. Details of the positioning command will be described later.
The position calculation unit 103 calculates the position of the mobile phone and the positioning estimation error from information included in the signal input from the GPS reception unit 102 and outputs the calculated position to the control unit 114.

The transmission / reception unit 112 receives a signal transmitted from the base station apparatus via the antenna 111, demodulates it, and outputs it to the control unit 114. Moreover, the information input from the control unit 114 is modulated and transmitted to the base station apparatus via the antenna 111. The storage unit 113 stores predetermined position information and network device control information. Specifically, the position information of the home C and the predetermined distance R ₀ are stored as the predetermined position information, and the result of the position determination, the network device to be controlled, and the operation command of the device are stored as the network device control information. Correspondence information (hereinafter referred to as network device control information) is stored.

The control unit 114 corrects an area necessary for position determination from the position information of the area D stored in the storage unit 113 and the positioning estimation error input from the position calculation unit 103 (hereinafter referred to as area correction). Specifically, the control unit 114 corrects the area D into a correction area E and a correction area F. Then, the control unit 114 compares the corrected area with the position information of the mobile phone A input from the position calculation unit 103 and performs position determination.
In addition, the network device control unit 117 included in the control unit 114 uses the network device control information acquired from the storage unit 113 to control the network device to be controlled based on the result of the position determination, the operation command of the device (hereinafter referred to as the device). Control instruction). Then, the control unit 114 outputs the specified device control command to the transmission / reception unit 112. The device control command is transmitted from the mobile phone A to the base station device B, and is transmitted to a mobile phone network such as a radio access network, a core network, and a gateway, and further to a network device at home C via the Internet.
The positioning timing determination unit 116 determines the timing for GPS positioning (hereinafter referred to as positioning timing), and the positioning command unit 115 sends the positioning command to the GPS power management unit 104 at the positioning timing determined by the positioning timing determination unit 116. Is output. The positioning timing determination unit 116 determines the positioning timing by a calculation method described later, for example.

  Next, the operation of the network device control system according to this embodiment will be described. FIG. 4 is a flowchart for the operation of this embodiment. 4A is a flowchart when the mobile phone A is first located outside the area D in FIG. 2, and FIG. 4B is a flow diagram when the mobile phone A is first located within the area D. FIG.

First, FIG. 4A will be described. The mobile phone A performs GPS positioning, but in the case of FIG. 4A, the location of the mobile phone A is outside the area D registered in advance (S101). Specifically, FIG. 4A shows a case where the distance d between the position of the mobile phone A and the home C is larger than _R0 .
After a predetermined time has elapsed, the positioning command unit 115 outputs a positioning command, and the GPS power management unit 104 turns on the power of the GPS unit 100 (S102). When the power of the GPS unit 100 is turned on, the GPS receiving unit 102 and the position calculating unit 103 perform GPS positioning (S103). After the GPS positioning is completed, the GPS power management unit 104 turns off the power of the GPS unit 100 to reduce power consumption (S104).
The control unit 114 corrects the area D to the correction area E necessary for position determination from the position information acquired from the storage unit 113 and the positioning estimation error input from the position calculation unit 103 (S105). Then, the control unit 114 determines whether or not the position of the mobile phone A input from the position calculation unit 103 is within the specified correction area E (S106). Specifically, it is determined whether or not the distance d between the position of the mobile phone A and the home C is smaller than R ₀ −α.

When the position of the mobile phone A is within the correction area E, that is, when d is smaller than R ₀ −α, the control unit 114 determines that it is “approaching” the home C and controls the network device included in the control unit 114. The unit 117 transmits a device control command to the base station device B (S107). The device control command is transmitted from the mobile phone A to the base station device B, and is transmitted to a mobile phone network such as a radio access network, a core network, and a gateway, and further to a network device in the home C via the Internet.
On the other hand, when the position of the mobile phone A is outside the correction area E, that is, when d is R ₀ −α or more, the positioning timing determination unit 116 determines the timing for outputting the positioning command. Specifically, the positioning timing determination unit 116 calculates a time interval ΔT ₁ until the next GPS positioning based on the distance d (S108). Then, the positioning command unit 115 determines whether or not ΔT _{1 has} passed (S109). If ΔT _{1 has} passed, the positioning command unit 115 outputs a positioning command to the GPS power management unit 104 (S110). The GPS power management unit 104 to which the positioning command is input turns on the power of the GPS unit 100 (S102), and the GPS receiving unit 102 starts receiving and measuring the GPS signal (S103).

In the calculation of ΔT ₁ , if ΔT ₁ is increased when d is large and ΔT ₁ is decreased when d is small, the GPS positioning interval increases at a position away from the boundary of the correction area E, and the correction area E The GPS positioning interval is small at a position close to the boundary. Therefore, the measurement interval can be reduced at a position away from the boundary of the correction area E.
Note that the calculation of [Delta] T _1, for _{example, ΔT 1 = s × d +} t (s, t are constants) calculated [Delta] T ₁ as is proportional to d, or is using the calculation method as proportional to the square of the d That's fine. However, the calculation method is not limited to this.

Next, FIG. 4B will be described. First, the mobile phone A performs GPS measurement. In the case of FIG. 4B, the position of the mobile phone A is within the area D registered in advance (S201). Specifically, FIG. 4B shows a case where the distance d between the position of the mobile phone A and the home C is smaller than _R0 .
After a predetermined time has elapsed, the positioning command unit 115 outputs a positioning command, and the GPS power management unit 104 turns on the power of the GPS unit 100 (S202). Then, the GPS receiving unit 102 and the position calculating unit 103 perform GPS positioning (S203). After the GPS positioning is completed, the GPS power management unit 104 turns off the power of the GPS unit 100 to reduce power consumption (S204).
The control unit 114 corrects the area D to the correction area F necessary for position determination from the position information acquired from the storage unit 113 and the positioning estimation error input from the position calculation unit 103 (S205). Then, the control unit 114 determines whether or not the position of the mobile phone A input from the position calculation unit 103 is outside the specified correction area F (S206). Specifically, it is determined whether or not the distance d between the position of the mobile phone A and the home C is greater than R ₀ + β.

When the position of the mobile phone A is outside the correction area F, that is, when d is greater than R ₀ + β, the control unit 114 determines that “go away” from the home C, and the network device control unit included in the control unit 114 117 transmits a device control command to the base station device (S207). The device control command is transmitted from the mobile phone A to the base station device B, and is transmitted to a mobile phone network such as a radio access network, a core network, and a gateway, and further to a network device in the home C via the Internet.
On the other hand, when the position of the mobile phone A is within the correction area F, that is, when d is equal to or less than R ₀ + β, the positioning timing determination unit 116 determines the timing for outputting the positioning command. Specifically, the positioning timing determination unit 116 calculates a time interval ΔT ₂ until the next GPS positioning based on the distance d (S208). Then, the positioning command unit 115 determines whether or not ΔT _{2 has} passed (S109), and when ΔT _{2 has} passed, outputs a positioning command to the GPS power management unit 104 (S110). The GPS power management unit 104 to which the positioning command has been input turns on the power of the GPS unit 100 (S202), and the GPS receiving unit 102 starts receiving the GPS signal (S203).

In the calculation of ΔT ₂ , if ΔT ₂ is decreased when d is large and ΔT ₂ is increased when d is small, the GPS positioning interval becomes large at a position away from the boundary of the correction area F, and the correction area At positions close to the boundary of F, the GPS positioning interval is small. Therefore, the measurement interval can be reduced at a position away from the boundary of the correction area F.
In calculating ΔT ₂ , for example, ΔT ₂ = s ′ × d + t ′ (s ′ and t ′ are constants, where ΔT ₂ is an integer and s ′ is a negative number), and ΔT is proportional to d. Alternatively, a calculation method that is proportional to the square of d may be used. However, the calculation method is not limited to this.

Control of the network device is necessary when the result of position determination changes, that is, when the boundary of the correction area is reached, and the necessity of GPS positioning is low at a position away from the boundary of the correction area.
According to the present embodiment, the GPS positioning interval is increased at a position away from the boundary of the correction area, and the number of GPS positioning is decreased. That is, the number of times of GPS positioning can be reduced at a position where the need for GPS positioning is low in order to control the network device. Therefore, the mobile station apparatus can reduce power consumption required for positioning, and can reduce battery consumption.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is a schematic block diagram showing the configuration of the mobile phone A with GPS function according to the present embodiment. When this embodiment is compared with the first embodiment, a speed detection unit 118 is added, and the positioning timing calculation method of the positioning timing determination unit 216 is different. However, since the function of each component is the same as that of the first embodiment, description of the same function as that of the first embodiment is omitted.

  The speed detection unit 118 detects the moving speed of the mobile phone A every predetermined time Δt, and outputs it to the positioning timing determination unit 216. As a moving speed detection method, for example, a known data part is extracted from multi-value data including phase information received from the transmission / reception unit by the speed detection unit 118, and a maximum Doppler frequency is calculated by calculating a frequency distribution by the phase variation, A method of detecting the moving speed is used by combining the Doppler frequency and the frequency used by the mobile phone A. However, the method for detecting the moving speed is not limited to this.

In the present embodiment, the positioning timing determination unit 216 determines the positioning timing by adding the moving speed of the mobile phone A input from the speed detection unit 118. Hereinafter, a positioning timing calculation method of the positioning timing determination unit 216 according to the present embodiment will be described.
FIG. 6 is a flowchart for the operation of this embodiment. 6A is a flowchart when the mobile phone A is first located outside the area D in FIG. 2, and FIG. 6B is a flowchart when the mobile phone A is first located within the area D. FIG.

  First, FIG. 6A will be described. When this embodiment is compared with the first embodiment, the operations of S101 to S105 and S107 are the same as those of the first embodiment, and thus the description of the same operations as those of the first embodiment is omitted.

The control unit 114 determines whether or not the position of the mobile phone A input from the position calculation unit 103 is within the correction area E. Specifically, the control unit 114 calculates the distance d between the position of the mobile phone A input from the position calculation unit 103 and the home C, and whether or not the distance d is smaller than the radius R ₀ −α of the correction area E. (S310).
When the position of the mobile phone A is outside the correction area E, that is, when the distance d is greater than or equal to the radius R ₀ -α, the positioning timing determination unit 216 determines the timing for outputting the positioning command. First, the speed detection unit 118 detects the moving speed v of the mobile phone A and outputs it to the positioning timing determination unit 216 (S311).

The positioning timing determination unit 216 calculates an approximate moving distance based on the moving speed of the mobile phone A and its detection interval, and determines whether the mobile phone A is within the correction area E as a result of the approximate movement. to decide. Specifically, the positioning timing determination unit 216 uses the movement speed v calculated by the movement detection unit 118 to approximate the movement distance v of the mobile phone A at a predetermined time Δt that is the detection interval of the movement detection unit 118. X Δt is calculated. Next, the positioning timing determination unit 216 subtracts the approximate moving distance v × Δt from the distance d, and sets the result as the distance d (S312). Then, the positioning timing determination unit 216 determines whether or not the updated distance d is smaller than the radius R ₀ −α (S313).

If the distance d is greater than or equal to the radius R ₀ −α, the positioning timing determination unit 216 again waits for the input of the moving speed v from the speed detection unit 118 (S311), and repeats the calculation.
If the distance d is smaller than the radius R ₀ −α, the positioning command unit 115 outputs a positioning command to the GPS power management unit 104 (S314). The GPS power management unit 104 to which the positioning command is input turns on the power of the GPS unit 100 (S102), and the GPS receiving unit 102 starts receiving and measuring the GPS signal (S103).

  Thus, when the mobile phone A located outside the area D is approximately positioned within the correction area E, the mobile phone A performs GPS positioning, and when it is determined not approximately within the correction area E. , GPS positioning is not implemented.

  Next, FIG. 6B will be described. When this embodiment is compared with the first embodiment, the operations of S201 to S205 and S207 are the same as those of the first embodiment, and thus the description of the same operations as those of the first embodiment is omitted.

The control unit 114 determines whether or not the position of the mobile phone A input from the position calculation unit 103 is outside the correction area E. Specifically, the control unit 114 calculates the distance d ′ between the position of the mobile phone A input from the position calculation unit 103 and the home C, and whether the distance d ′ is larger than the radius R ₀ + β of the correction area F. Judgment is made based on whether or not (S410).
When the position of the mobile phone A is within the correction area F, that is, when the distance d ′ is not more than the radius R ₀ + β, the positioning timing determination unit 216 determines the timing for outputting the positioning command. First, the speed detector 118 detects the moving speed v ′ of the mobile phone A and outputs it to the positioning timing determiner 216 (S411).

The positioning timing determination unit 216 calculates an approximate moving distance based on the moving speed of the mobile phone A and its detection interval, and determines whether the mobile phone A is outside the correction area F as a result of the approximate movement. to decide. Specifically, the positioning timing determination unit 216 uses the movement speed v ′ calculated by the movement detection unit 118 to approximate the movement distance of the mobile phone A at a predetermined time Δt that is the detection interval of the movement detection unit 118. v ′ × Δt is calculated. Next, the positioning timing determination unit 216 adds the approximate moving distance v ′ × Δt to the distance d ′ calculated by the control unit 114, and sets the result as the distance d ′ (S412). Then, the positioning timing determination unit 216 determines whether or not the updated distance d ′ is larger than the radius R ₀ + β (S413).

If the distance d is equal to or less than the radius R ₀ + β, the positioning timing determination unit 216 again waits for the input of the moving speed v ′ from the speed detection unit 118 (S411), and repeats the calculation.
If the distance d is larger than the radius R ₀ + β, the positioning command unit 115 outputs a positioning command to the GPS power management unit 104 (S414). The GPS power management unit 104 to which the positioning command has been input turns on the power of the GPS unit 100 (S202), and the GPS receiving unit 102 starts receiving the GPS signal (S203).

  Thereby, when it is determined that the mobile phone A located in the area D is approximately located outside the correction area F, GPS positioning is performed, and when it is determined that it is not approximately located outside the correction area F. , GPS positioning is not implemented.

  Thus, according to the present embodiment, the mobile phone A uses the moving speed information to calculate an approximate moving distance and determine whether or not the boundary of the correction area has been approximately reached. ing. When it is determined that the boundary of the correction area has not been reached approximately, GPS positioning is not performed, so the number of GPS positioning can be reduced. That is, the number of times of GPS positioning can be reduced at a position where the need for GPS positioning is low in order to control the network device. Therefore, the mobile station apparatus can reduce power consumption required for positioning and reduce battery consumption.

(Third embodiment)
Hereinafter, the third embodiment of the present invention will be described in detail with reference to the drawings. FIG. 7 is a schematic block diagram showing the configuration of the mobile phone A with GPS function according to the present embodiment. When this embodiment is compared with the second embodiment, the positioning timing calculation method of the positioning timing determination unit 316 is different. However, since the function of each component is the same as that of the second embodiment, description of the same function as that of the second embodiment is omitted.

Hereinafter, a method for calculating the positioning timing of the positioning timing determination unit 316 according to the present embodiment will be described.
FIG. 8 is a flowchart for the operation of this embodiment. FIG. 8A is a flowchart when the mobile phone A is first located outside the area D in FIG. 2, and FIG. 8B is a flow diagram when the mobile phone A is first located within the area D. FIG.

  First, FIG. 8A will be described. When this embodiment is compared with the second embodiment, the operations of S101 to S105 and S107 are the same as those of the first embodiment, and thus the description of the same operations as those of the second embodiment is omitted.

The control unit 114 determines whether or not the position of the mobile phone A input from the position calculation unit 103 is within the correction area E (S106).
When the position of the mobile phone A is outside the correction area E, the positioning timing determination unit 316 determines the timing for outputting the positioning command.
First, the speed detection unit 118 detects the moving speed v of the mobile phone A and outputs it to the positioning timing determination unit 316 (S511).

The positioning timing determination unit 316 calculates the time when the mobile phone A reaches the boundary of the correction area E, and uses the time after the time as the positioning timing. Specifically, the positioning timing determining unit 316 calculates a time interval ΔT ₃ until the next GPS positioning based on the distance d and the moving speed v calculated by the movement detecting unit 118 (S512). Then, the positioning command unit 115 determines whether or not ΔT _{3 has} passed (S513). If ΔT _{3 has} passed, the positioning command unit 115 outputs a positioning command to the GPS power management unit 104 (S514). The GPS power management unit 104 to which the positioning command is input turns on the power of the GPS unit 100 (S102), and the GPS receiving unit 102 starts receiving and measuring the GPS signal (S103).

ΔT ₃ is specified using, for example, a correspondence table as shown in FIG. In FIG. 9, the positioning interval ΔT ₃ can be obtained from the distance d and the moving speed v. For example, when the distance d is 7 km and the moving speed v is 40 km / h, the time interval ΔT ₃ is 6 minutes, and when the distance d is 40 km and the moving speed v is 7 km / h, the time interval ΔT ₃ is 150 minutes. is there.
ΔT ₃ can also be calculated using ΔT ₃ = (d−R ₀ + α) / (v × γ), which is estimated as the time to reach d = R ₀ −α, which is the boundary of the correction area E. Here, γ is a correction coefficient for optimizing the time interval. In the present embodiment, since the moving speed is not always observed, the timing of the next GPS positioning may be delayed if the moving speed changes abruptly. In such a case, γ can be increased and the GPS positioning timing can be performed earlier. The correspondence table and γ are stored in the storage unit 113. However, the calculation method is not limited to this.

  Thereby, the mobile phone A located outside the area D can estimate the time in the correction area E, and does not perform GPS positioning until the time is reached.

  Next, FIG. 8B will be described. When this embodiment is compared with the second embodiment, the operations of S201 to S205 and S207 are the same as those of the second embodiment, and thus the description of the same operations as those of the second embodiment is omitted.

The control unit 114 determines whether or not the position of the mobile phone A input from the position calculation unit 103 is outside the correction area F (S206).
When the position of the mobile phone A is within the correction area F, the positioning timing determination unit 316 determines the timing for outputting the positioning command.
First, the speed detection unit 118 detects the moving speed v ′ of the mobile phone A and outputs it to the positioning timing determination unit 316 (S611).

The positioning timing determination unit 316 calculates the time when the mobile phone A reaches the boundary of the correction area F, and uses the time after the time as the positioning timing. Specifically, the positioning timing determining unit 316 calculates a time interval ΔT ₄ until the next GPS positioning based on the distance d and the moving speed v ′ calculated by the movement detecting unit 118 (S612). Then, the positioning command unit 115 determines whether or not ΔT _{4 has} passed (S613). If ΔT _{4 has} passed, the positioning command unit 115 outputs a positioning command to the GPS power management unit 104 (S614). The GPS power management unit 104 to which the positioning command has been input turns on the power of the GPS unit 100 (S202), and the GPS receiving unit 102 starts receiving the GPS signal (S203).
ΔT ₄ can be calculated in the same manner as ΔT ₃ . In the case of a mathematical expression, it can also be calculated using ΔT ₄ = (R ₀ + β−d) / (v × γ), which is estimated as the time to reach d = R ₀ + β, which is the boundary of the correction area F. However, the calculation method is not limited to this.

  Thereby, the mobile phone A located in the area D can estimate the time when it is located outside the correction area F, and does not perform GPS positioning until the time is reached.

  In the present embodiment, the moving speeds v and v ′ are calculated based on the moving speed detected by the speed detecting unit 118, but the present invention is not limited to this, and the speed detecting unit 118 can perform GSP positioning. The moving speed of the mobile phone A may be calculated based on the position information acquired in step 1 and the GPS positioning time interval, and the moving speeds v and v ′ may be calculated based on the calculated moving speed. In this case, v and v 'may be calculated as the moving speed, which is a component in the direction in which the mobile phone A moves toward the home C or away.

Thus, according to the present embodiment, the mobile phone A calculates the time interval until the next GPS positioning by using the position information and the moving speed information, and determines the time to reach the boundary of the correction area. Estimated. And since GPS positioning is not implemented until this estimated time passes, the number of times of GPS positioning can be reduced. That is, the number of times of GPS positioning can be reduced at a position where the need for GPS positioning is low in order to control the network device. Therefore, the mobile station apparatus can reduce power consumption required for positioning and reduce battery consumption.
Further, since the mobile phone A does not repeat speed detection and calculation as in the second embodiment, the control circuit and the program can be simplified.

(Fourth embodiment)
Hereinafter, a fourth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 10 is a schematic block diagram showing the configuration of the mobile phone A with GPS function according to the present embodiment. When this embodiment is compared with the third embodiment, the positioning timing calculation method of the positioning timing determination unit 416 is different. However, since the function of each component is the same as that of the third embodiment, description of the same function as that of the third embodiment is omitted.
In this embodiment, the positioning timing determination part 416 determines the said positioning timing with the calculation method mentioned later which added the received signal level L which is the quality value of the received signal from a base station apparatus.

  Hereinafter, a method for calculating the positioning timing of the positioning timing determination unit 416 according to the present embodiment will be described. FIG. 11 is a flowchart for the operation of the present embodiment. FIG. 11A is a flowchart when the mobile phone A is first located outside the area D in FIG. 2, and FIG. 11B is a flow diagram when the mobile phone A is first located within the area D. FIG.

  First, FIG. 11A will be described. When this embodiment is compared with the third embodiment, the operations of S101 to S107, S511, and S512 are the same as those of the third embodiment, and thus the description of the same operations as those of the third embodiment is omitted.

The control unit 114 determines whether or not ΔT _{3 has} elapsed (S711). If ΔT _{3 has} elapsed, the control unit 114 calculates a reception signal level L indicating reception quality based on the reception signal input from the transmission / reception unit 112 (S712). .
Here, the received signal level L is a received signal level from a predetermined base station apparatus registered in advance, and here, the base station apparatus is a base station apparatus having a maximum received signal level at home C. .
Note that the storage unit 113 stores in advance a cell ID that is an identifier of the base station apparatus and a predetermined threshold L _th of the received signal level. Specifically, the owner of the mobile phone A presses the button of the mobile phone A to give a registration instruction for the base station device, and the mobile phone A receives the transmission signal from the base station device and receives the received signal. The cell ID of the base station apparatus with the maximum signal level is specified, and the cell ID and the threshold value L _th are stored in the storage unit 113 in advance.

Then, the positioning timing determination unit 416 included in the control unit 114, the received signal level L is determined whether a predetermined threshold value _{L th} is larger than (S713).
Positioning timing determination unit 416, L is if _{L th} below, after a predetermined time, again, to detect the received signal level L (S712).
If L is _{L th} greater than the positioning instruction unit 115 outputs a positioning instruction to the GPS power management unit 104 (S714). The GPS power management unit 104 to which the positioning command is input turns on the power of the GPS unit 100 (S102), and the GPS receiving unit 102 starts receiving and measuring the GPS signal (S103).

  Accordingly, when the mobile phone A located outside the area D is located near the home C where the received signal level from the base station apparatus is high, the mobile phone A performs GPS positioning, and the received signal level is low. When it is located far from home C, which is the position, GPS positioning is not performed.

  Next, FIG. 11B will be described. When this embodiment is compared with the third embodiment, the operations of S201 to S207, S611, and S612 are the same as those of the third embodiment, and thus the description of the same operations as those of the third embodiment is omitted.

The control unit 114 determines whether or not ΔT _{4 has} elapsed (S811). If ΔT _{4 has} elapsed, the control unit 114 calculates a reception signal level L indicating reception quality based on the reception signal input from the transmission / reception unit 112 (S812). .

Then, the positioning timing determination unit 416 included in the control unit 114 determines whether or not the received signal level L is smaller than a predetermined threshold L _th ′ (S812).
If L is equal to or greater than L _th ′, the positioning timing determination unit 416 detects the received signal level L again after a predetermined time has elapsed (S813).
If L is less than L _th ′, the positioning command unit 115 outputs a positioning command to the GPS power management unit 104 (S814). The GPS power management unit 104 to which the positioning command has been input turns on the power of the GPS unit 100 (S202), and the GPS receiving unit 102 starts receiving the GPS signal (S203).

  Thereby, when the mobile phone A located in the area D is located far from the home C where the received signal level from the base station apparatus is small, the mobile phone A performs GPS positioning, and the received signal level is high. GPS positioning is not performed when it is located close to home C, which is the position.

The area where the received signal level L is equal to or greater than a predetermined threshold is a range surrounded by a circle centered on the base station apparatus when radio waves are attenuated to a certain level. Then, the area can be approximated to the correction area, included in the correction area, or can include the correction area by a predetermined threshold. Therefore, it is possible to estimate whether or not the correction signal has reached the correction area based on whether or not the received signal level L is located in an area that is equal to or greater than a predetermined threshold.
On the other hand, when waiting for the time until the next GPS positioning as in the first and third embodiments, the correction area is not always reached after the time has elapsed.
In the present embodiment, by estimating whether or not the correction area has been reached, it is possible to reduce the number of times of GPS positioning when the GPS area has not reached the correction area where the need for GPS positioning is low in order to control the network device. Can do. Therefore, the mobile station apparatus can reduce power consumption required for positioning and reduce battery consumption.

  In general, the cell ID may be reused in a base station apparatus at a remote location. Therefore, if the network device is controlled only by the reception quality level of the cell ID, it is not possible to distinguish whether or not the base station device has the maximum received signal level at home C, and the location away from the base station device. In some cases, the base station apparatus having the same cell ID is controlled in the same way as the base station apparatus having the maximum received signal level at home C. In the present embodiment, since the distance between the position of the mobile phone A and the correction area is also determined, it is possible to identify the base station apparatus that has the maximum received signal level at home C. Therefore, it is possible to control the network device only for the base station device having the maximum received signal level at home C.

In the present embodiment, the base station apparatus having the maximum received signal level at home C is registered and described as an example of a configuration that approximates the correction area. However, the present invention is not limited to this, A plurality of base station devices may be registered to approximate the correction area.
Furthermore, the present embodiment has a speed detection unit and determines the time interval until the next GPS positioning based on the detected moving speed, but the present invention is not limited to this, and the first embodiment As in the embodiment, there is no speed detection unit, and the positioning timing may be determined based only on the distance d until the next GPS positioning.
The above is the method using the cell ID, but there is a method using the information of the location registration area of the base station apparatus. Normally, a mobile phone performs location registration in some area (location registration area). For this reason, the user first registers the location registration area of the registration area (home) in the base station server. For example, if the mobile phone is outside the registered location registration area, the base station does not instruct the mobile phone to perform GPS positioning. When the location registration is performed in the location registration area registered by the mobile phone, it is possible to perform control such that ΔT calculated by the method of the above-described embodiment is notified. By adopting such a method, it is not necessary to perform GPS positioning outside the position registration area, and current consumption can be reduced.

(Fifth embodiment)
Hereinafter, a fifth embodiment of the present invention will be described in detail with reference to the drawings. In this embodiment, the base station apparatus includes the position calculation unit, the positioning timing determination unit, and the storage unit in the third embodiment. FIG. 12 is a schematic block diagram illustrating the configuration of the mobile phone A with GPS function and the base station apparatus B according to the present embodiment.

  First, the mobile phone A will be described. The mobile phone A of the present embodiment includes a GPS antenna 5001, a GPS receiver 502, and a GPS power management unit 503 in the GPS unit 500. The mobile phone unit 510 includes an antenna 511, a transmission / reception unit 512, and speed detection. A unit 515, a control unit 513, and a positioning command unit 514 included in the control unit 513.

The GPS power management unit 503 turns on the power of the GPS unit 500 based on the positioning command input from the control unit 513. When the power of the GPS unit 500 is turned on, the GPS reception unit 502 passes through the GPS antenna 501. The GPS signal is received from the GPS satellite, demodulated, and output to the control unit 513.
The transmission / reception unit 512 receives a signal transmitted from the base station apparatus via the antenna 511, demodulates it, and outputs it to the control unit 513. Also, the GPS signal information input from the control unit 513 and the moving speed information of the mobile phone A are modulated and transmitted to the base station apparatus via the antenna 511. The speed detection unit 515 detects the moving speed of the mobile phone A every predetermined time Δt and outputs it to the control unit 513.
The control unit 513 outputs the GPS signal input from the GPS reception unit 502 and the moving speed of the mobile phone A input from the speed detection unit 515 to the transmission / reception unit 512. In addition, the positioning command unit 514 outputs the positioning command to the GPS power management unit 503 based on the positioning timing information transmitted from the base station apparatus B.

  Next, the base station apparatus B will be described. The base station apparatus B of this embodiment includes an antenna 601, a transmission / reception unit 602, a position calculation unit 603, a storage unit 604, a control unit 605, a positioning timing determination unit 606 included in the control unit 605, and a network device. And a control unit 607.

The transmission / reception unit 602 receives the GPS signal information and the movement speed information of the mobile phone A transmitted from the mobile phone A via the antenna 601, demodulates them, and outputs them to the position calculation unit 603 and the control unit 605, respectively. . In addition, the transmission / reception unit 602 transmits the positioning timing information input from the control unit 605 to the mobile phone A via the antenna 601.
The position calculation unit 603 calculates the position of the mobile phone and the positioning estimation error from the information included in the GPS signal input from the transmission / reception unit 602, and outputs it to the control unit 605. The storage unit 604 stores predetermined information as in the third embodiment.

The control unit 605 performs area correction from the position information of the area D stored in the storage unit 604 and the positioning estimation error input from the position calculation unit 603, and the mobile phone A input from the corrected area and position calculation unit 603. And position information are compared with each other.
Then, the network device control unit 607 included in the control unit 605 specifies a device control command using the network device control information acquired from the storage unit 604 based on the result of the position determination, and outputs the specified device control command. To do. The output device control command is transmitted to a network device at home C via a mobile phone network such as a radio access network, a core network, a gateway, and the Internet.
The positioning timing determination unit 606 determines the positioning timing by the same calculation method as the positioning timing determination unit 116 of the third embodiment, and the control unit 605 transmits and receives the positioning timing information determined by the positioning timing determination unit 606. Output to 602.

  Subsequently, the operation of the apparatus control system according to the present embodiment will be described. FIG. 13 is a flowchart for the operation of the present embodiment, and FIG. 13A is a flowchart when the mobile phone A is first located outside the area D in FIG.

First, the mobile phone A receives the GPS signal and transmits it to the base station device B, and the base station device calculates the position of the mobile phone A. In the case of FIG. Outside the registered area D (S901). After a predetermined time has elapsed, the positioning command unit 514 outputs a positioning command, and the GPS power management unit 503 turns on the power of the GPS unit 500 (S902). When the power of the GPS unit 500 is turned on, the GPS receiving unit 502 receives a GPS signal (S903) and outputs it to the control unit 513. After completion of the reception, the GPS power management unit 503 turns off the power of the GPS unit 500 in order to reduce power consumption (S904). The speed detector 515 detects the moving speed of the mobile phone A and outputs it to the controller 513 (S905).
Then, the control unit 513 outputs the GPS signal input from the GPS reception unit 502 and the moving speed v input from the speed detection unit 515 (hereinafter referred to as mobile station information) to the transmission / reception unit 512, and the transmission / reception unit 512 transmits the mobile station information to the base station apparatus B via the antenna 511 (S906).

The base station apparatus B receives the mobile station information transmitted from the mobile station apparatus via the antenna 511, and outputs the GPS signal to the position calculation unit 603 and the movement speed v to the control unit 605 (S907). The position calculation unit 603 calculates the position of the mobile phone and the positioning estimation error from the information included in the GPS signal input from the transmission / reception unit 602, and outputs it to the control unit 605.
The control unit 605 corrects the area D to the correction area E necessary for position determination from the position information acquired from the storage unit 604 and the positioning estimation error input from the position calculation unit 603 (S908). Then, the control unit 605 determines whether or not the position of the mobile phone A input from the position calculation unit 603 is within the specified correction area E (S909).

When the position of the mobile phone A is within the correction area E, the control unit 605 determines that it is “approaching” home C, and the network device control unit 607 included in the control unit 605 outputs a device control command (S910). ). The device control command is transmitted from the base station device B to a mobile phone network such as a radio access network, a core network, and a gateway, and further to a network device at home C via the Internet.
On the other hand, when the position of the mobile phone A is outside the correction area E, the positioning timing determination unit 606 determines the timing for outputting the positioning command (S911), and the control unit 605 sends the positioning timing information to the transmission / reception unit 602. Output. A specific calculation method is, for example, the same as in the third embodiment, and the positioning timing determination unit 606 determines a time interval ΔT ₃ until the next GPS positioning. The transmission / reception unit 602 transmits the input positioning timing information to the mobile phone A via the antenna 601 (S912).

The transceiver unit 512 of the mobile phone A receives the positioning timing information transmitted from the base station apparatus via the antenna 511, demodulates it, and outputs it to the control unit 513 (S913). Positioning instruction unit 514 included in the control unit 513 determines whether or not [Delta] T ₃ has elapsed (S914), if you [Delta] T ₃ has elapsed, and outputs a positioning instruction to the GPS power management unit 503 (S915). The GPS power management unit 503, to which the positioning command is input, turns on the power of the GPS unit 500 (S902), and the GPS receiving unit 502 starts receiving the GPS signal (S903).

Next, FIG. 13B will be described. First, the mobile phone A receives the GPS signal and transmits it to the base station device B, and the base station device calculates the position of the mobile phone A. In the case of FIG. Within the registered area D (S1001). After a predetermined time has elapsed, the positioning command unit 514 outputs a positioning command, and the GPS power management unit 503 turns on the power of the GPS unit 500 (S1002). When the power of the GPS unit 500 is turned on, the GPS receiving unit 502 receives a GPS signal (S1003) and outputs it to the control unit 513. After the reception is completed, the GPS power management unit 503 turns off the power of the GPS unit 500 in order to reduce power consumption (S1004). The speed detector 515 detects the moving speed of the mobile phone A and outputs it to the controller 513 (S1005).
And the control part 513 outputs mobile station information to the transmission / reception part 512, and the transmission / reception part 512 transmits mobile station information to the base station apparatus B via the antenna 511 (S1006).

The base station apparatus B receives the mobile station information transmitted from the mobile station apparatus via the antenna 511, and outputs the GPS signal to the position calculation unit 603 and the moving speed v ′ to the control unit 605 (S1007). . The position calculation unit 603 calculates the position of the mobile phone and the positioning estimation error from the information included in the GPS signal input from the transmission / reception unit 602, and outputs it to the control unit 605.
The control unit 605 corrects the area D to the correction area F necessary for position determination from the position information acquired from the storage unit 604 and the positioning estimation error input from the position calculation unit 603 (S1008). Then, the control unit 605 determines whether or not the position of the mobile phone A input from the position calculation unit 603 is outside the specified correction area F (S1009).

When the position of the mobile phone A is outside the correction area F, the control unit 605 determines to “go away” from the home C, and the network device control unit 607 included in the control unit 605 outputs a device control command (S1010). ). The device control command is transmitted from the base station device B to a mobile phone network such as a radio access network, a core network, and a gateway, and further to a network device at home C via the Internet.
On the other hand, when the position of the mobile phone A is within the correction area F, the positioning timing determination unit 606 determines the timing for outputting the positioning command (S1011), and the control unit 605 sends the positioning timing information to the transmission / reception unit 602. Output. The specific calculation method is the same as that of the third embodiment, for example, and the positioning timing determination unit 606 determines the time interval ΔT ₄ until the next GPS positioning. The transmission / reception unit 602 transmits the input positioning timing information to the mobile phone A via the antenna 601 (S1012).

The transmission / reception unit 512 of the mobile phone A receives the positioning timing information transmitted from the base station device via the antenna 511, demodulates it, and outputs it to the control unit 513 (S1013). Positioning instruction unit 514 included in the control unit 513 determines whether or not [Delta] T ₄ has elapsed (S1014), if you [Delta] T ₄ has elapsed, and outputs a positioning instruction to the GPS power management unit 503 (S1015). The GPS power management unit 503 to which the positioning command is input turns on the power of the GPS unit 500 (S1002), and the GPS receiving unit 502 starts receiving positioning of the GPS signal (S1003).
In the above, the moving speed of the mobile phone A is detected by the speed detecting unit in the mobile phone A, but the present invention is not limited to this, and the position information acquired by the position calculating unit 603 of the base station apparatus B and the GPS positioning information The moving speed of the mobile phone A may be calculated based on the time interval, and the moving speeds v and v ′ may be calculated based on the calculated moving speed. In this case, v and v ′ may be calculated based on the moving speed, which is a component in the direction in which the mobile phone A moves toward the home C or in the direction away from it. When the moving speed is calculated by such a base station apparatus B, the speed detector of the mobile phone A is not required, the circuit of the mobile phone A can be simplified, and the moving speed information is transmitted to the base station apparatus B. There is no need to transmit, and the number of information bits can be reduced accordingly.

  Thus, according to the present embodiment, the present invention can be applied to a system that performs GPS positioning calculation at a base station, for example, a UE (User Equipment) Assisted system, and the number of GPS positioning operations can be reduced. Can do. Therefore, the mobile station apparatus can reduce power consumption required for positioning and reduce battery consumption.

(Sixth embodiment)
Hereinafter, the sixth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is a schematic block diagram showing the configuration of the mobile phone A with GPS function according to the present embodiment.
When this embodiment is compared with the second embodiment, the function of the network device control unit 117 is different. However, since the function of each component is the same as that of the second embodiment, description of the same function as that of the second embodiment is omitted.

The network device control unit 117 included in the control unit 114 uses the distance d between the position of the mobile phone A calculated by the control unit 114 and the home C and the moving speed v calculated by the movement detection unit 118. The arrival time at which the owner arrives at home C is calculated.
The network device control unit 117 specifies a device control command using the result of the position determination by the positioning timing determination unit 116 and the network device control information acquired from the storage unit 113. Then, the control unit 114 outputs the device control command specified by the network device control unit 117 and the calculated arrival time to the transmission / reception unit 112. The device control command and arrival time are transmitted from the mobile phone A to the base station device B, and transmitted to a mobile phone network such as a radio access network, a core network, and a gateway, and further to a network device at home C via the Internet. Is done.

  Thereby, the owner of the mobile phone A can control the network device according to the time of arrival at the home C. For example, when the owner of the mobile phone A returns home to the home C, the air conditioner is activated several minutes before returning home, and when the owner of the mobile phone A returns home, the room of the home C can be brought to an appropriate temperature.

  As described above, according to the present embodiment, it is possible to predict the time when the owner of the mobile phone arrives at the place having the network device based on the position and moving speed of the mobile phone A. Therefore, the network device can exhibit a function corresponding to the arrival time, and the owner of the mobile phone A can use the network device more conveniently.

  In the present embodiment, the mobile phone A calculates the arrival time as an example. However, the present invention is not limited to this, and the mobile phone A moves with the location information of the mobile phone A. By transmitting the speed information to the base station device, the base station device or the network device may calculate the arrival time. Even if the location information of the mobile phone A cannot be transmitted, the base station device or the network device uses the correction area information and the moving speed information of the mobile phone A to arrive at the home C from the boundary of the correction area. Can be calculated and approximated to the arrival time.

(Seventh embodiment)
Hereinafter, the seventh embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is a schematic block diagram showing the configuration of the mobile phone A with GPS function according to the present embodiment. This embodiment is obtained by adding control when GPS positioning fails to the third embodiment. Therefore, the function of each component is the same as that of the third embodiment, and the description of the same function as that of the third embodiment is omitted.

  GPS positioning does not always succeed, and if GPS positioning fails, it is necessary to perform re-positioning. However, even if re-positioning is performed immediately after GPS positioning has failed, there is a high possibility that the mobile phone A has not left an area where GPS positioning is not possible, and re-positioning is likely to fail. Therefore, in the present embodiment, a predetermined time interval for repositioning is determined based on the moving speed of the mobile phone A.

When the GPS unit 100 fails in the GPS positioning, the positioning timing determination unit 216 determines a GPS re-positioning time interval based on the moving speed detected by the speed detection unit 118. Then, the positioning command unit 115 outputs a positioning command at the time interval, turns on the power of the GPS receiving unit 102 to which the command is input, and starts positioning.
Specifically, the positioning timing determination unit 216 shortens the re-positioning time interval when the moving speed is fast, and lengthens the time interval when the moving speed is slow. In other words, if the mobile phone's moving speed is fast, there is a high possibility that the area where GPS positioning cannot be performed will be quickly removed. Therefore, if the mobile phone's moving speed is slow, the re-positioning time interval is shortened. Since the possibility of leaving the area early is low, the repositioning time interval is lengthened.

  As described above, according to the present embodiment, the mobile phone can efficiently reduce the number of repositioning compared to a case where GPS repositioning is performed at a predetermined time interval. Thereby, the mobile phone can reduce the power consumed by GPS positioning.

(Eighth embodiment)
Hereinafter, an eighth embodiment of the present invention will be described in detail with reference to the drawings. FIG. 5 is a schematic block diagram showing the configuration of the mobile phone A with GPS function according to the present embodiment. In this embodiment, the home C in the third embodiment is used as a route. Therefore, the function of each component is the same as that of the third embodiment, and the description of the same function as that of the second embodiment is omitted.

  In many cases, the owner of the mobile phone A has a fixed route to the destination. For example, commuting, going to school, or returning home. In the present embodiment, control of GPS positioning based on route information will be described.

  First, the owner of the mobile phone A registers in advance the mobile phone A with a frequently used outbound route or return route. Specifically, the method of registering a route by designating a plurality of points on the map displayed on the screen of the mobile phone A by the owner of the mobile phone A, or passing the route registered by the owner of the mobile phone A In addition, there is a method in which the mobile phone A automatically registers a route by GPS positioning.

When the route is registered, the storage unit 113 stores longitude and latitude that are position information at a plurality of points on the route. In this case, if each of the plurality of points is regarded as the home C of each of the above embodiments and the area surrounded by the radius _R0 with the point as the center is the area D, is it “approaching” the route as in the above embodiment? It is possible to determine the position of “go away”.
Further, in determining the positioning timing, it is also possible to exclude the vicinity of the departure point of the outward route or the return route. This is because the departure point of the return route may be the destination of the outbound route, and it is difficult to determine whether the user is staying at the point or has arrived on the return route.

  Thus, according to the present embodiment, the mobile phone makes a position determination based on the route and does not execute GPS positioning at points other than the route, so the number of times of GPS positioning can be reduced. Therefore, the mobile station apparatus can reduce power consumption required for positioning and reduce battery consumption.

In each of the above embodiments, the control of the network device is described. However, the present invention is not limited to this, and control other than the network device may be performed. For example, there is a system for notifying the family that the owner of the mobile phone is approaching home by e-mail or notifying the nurse that the inpatient is moving away from the hospital where the inpatient is hospitalized.
Further, in each of the above-described embodiments, the case of “approaching” the position of the mobile phone A and the home C and the case of “moving away” are described in one embodiment, but each embodiment is not limited to this combination, for example, The case of “approaching” may be the fourth embodiment, the case of “moving away” may be the third embodiment, and only one of the case of “approaching” and “moving away” may be the embodiment.

  In addition, you may make it implement | achieve the function of the mobile station apparatus in the embodiment mentioned above, or a part of base station apparatus, for example, the function of a control part and a positioning timing determination part. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by a computer system and executed. Here, the “computer system” includes an OS and hardware such as peripheral devices. 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. Further, 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. It is also possible to include those that hold a program for a certain time, such as a volatile memory inside a computer system serving as a server or client in that case. 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.

  As described above, the embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to the above, and various design changes and the like can be made without departing from the scope of the present invention. It is possible to

1 is a conceptual diagram of a communication system according to a first embodiment of the present invention. It is a conceptual diagram which shows the positional relationship of the mobile telephone and home which concerns on the 1st Embodiment of this invention, and the reference | standard point of a position determination. 1 is a block diagram of a mobile phone according to a first embodiment of the present invention. It is a flow figure concerning a 1st embodiment of the present invention. It is a block diagram of the mobile telephone which concerns on the 2nd Embodiment of this invention. It is a flowchart which concerns on the 2nd Embodiment of this invention. It is a block diagram of the mobile telephone which concerns on the 3rd Embodiment of this invention. It is a flowchart which concerns on the 3rd Embodiment of this invention. It is a figure which shows the relationship between the distance which concerns on the 3rd Embodiment of this invention, a moving speed, and a positioning space | interval. It is a block diagram of the mobile telephone which concerns on the 4th Embodiment of this invention. It is a flowchart which concerns on the 4th Embodiment of this invention. It is a block diagram of the mobile telephone which concerns on the 5th Embodiment of this invention. It is a flowchart which concerns on the 5th Embodiment of this invention.

Claims (15)

When a positioning command is input, a positioning signal receiver that receives a positioning signal;
A position calculator that calculates the position of the mobile station device from the positioning signal received by the positioning signal receiver;
A storage unit for storing predetermined position information;
A positioning command unit for outputting the positioning command to the positioning signal receiving unit;
A positioning timing determination unit that determines the timing of outputting the positioning command ;
A reception quality calculation unit that calculates a reception signal level indicating reception quality of a transmission signal transmitted by a predetermined base station device , and
The positioning timing determination unit is configured to determine whether the position of the mobile station apparatus calculated by the position calculation unit and the predetermined position stored by the storage unit are based on the magnitude of the received signal level calculated by the reception quality calculation unit . A mobile station apparatus that determines a timing for outputting the positioning command according to a distance. When a positioning command is input, a positioning signal receiver that receives a positioning signal;
A position calculator that calculates the position of the mobile station device from the positioning signal received by the positioning signal receiver;
A storage unit for storing a predetermined route along which the mobile station device moves ;
A positioning command unit for outputting the positioning command to the positioning signal receiving unit;
A positioning timing determination unit that determines the timing of outputting the positioning command;
The positioning timing determination unit determines a timing for outputting the positioning command according to a distance between a position of the mobile station apparatus calculated by the position calculation unit and a predetermined route stored in the storage unit. A mobile station device to perform. The positioning timing determination unit further shortens the time for outputting the next positioning command when the positioning signal reception unit fails to receive the positioning signal and the moving speed detected by the speed detection unit is fast. 3. The mobile station apparatus according to claim 1 , wherein the mobile station apparatus determines the time to output the next positioning command next time when the time is determined or when the moving speed is low. Further, the mobile station apparatus according to any one of claims 1 to 3, characterized in that it comprises a network device control unit for controlling the devices connected to the network. Further comprising a control unit that position and the storage unit of the position calculating unit is the mobile station apparatus calculates to correct the distance between the predetermined position stored,
The mobile station apparatus according to claim 4 , wherein the network apparatus control unit controls an apparatus connected to the network based on the corrected distance . The mobile station apparatus according to claim 5 , wherein the control unit determines a correction amount of the correction distance based on a positioning estimation error. The network device control unit is based on the moving speed of the mobile station device detected by the speed detecting unit, and the distance between the position of the mobile station device calculated by the position calculating unit and the predetermined position stored in the storage unit. The mobile station apparatus according to claim 4 , wherein an arrival time at the predetermined position is calculated, and a network apparatus is controlled based on the arrival time. In a communication system using a mobile station device with a positioning function and a base station device,
A transmission / reception unit that receives the positioning reception signal transmitted from the mobile station device and transmits the positioning timing information input to the mobile station device;
A position calculator that calculates the position of the mobile station device from the positioning signal received by the transceiver; and
A storage unit for storing predetermined position information;
Determining the positioning timing information, which is the timing for outputting a positioning command, and outputting a positioning timing determining unit ;
A reception quality calculation unit that calculates a reception signal level indicating reception quality of a transmission signal transmitted by a predetermined base station device , and
The positioning timing determination unit is configured to determine whether the position of the mobile station apparatus calculated by the position calculation unit and the predetermined position stored by the storage unit are based on the magnitude of the received signal level calculated by the reception quality calculation unit . A base station apparatus that determines a timing for outputting the positioning command according to a distance. In a communication system using a mobile station device with a positioning function and a base station device,
A transmission / reception unit that receives the positioning reception signal transmitted from the mobile station device and transmits the positioning timing information input to the mobile station device;
A position calculator that calculates the position of the mobile station device from the positioning signal received by the transceiver; and
A storage unit for storing a predetermined route along which the mobile station device moves ;
Determining the positioning timing information that is a timing for outputting a positioning command, and including a positioning timing determining unit for outputting,
The positioning timing determination unit determines a timing for outputting the positioning command according to a distance between a position of the mobile station apparatus calculated by the position calculation unit and a predetermined route stored in the storage unit. Base station equipment. Furthermore, the base station apparatus of Claim 8 or 9 provided with the network apparatus control part which controls the apparatus connected to the network. Further comprising a control unit that position and the storage unit of the position calculating unit is the mobile station apparatus calculates to correct the distance between the predetermined position stored,
The base station apparatus according to claim 10 , wherein the network apparatus control unit controls apparatuses connected to the network based on the corrected distance. The base station apparatus according to claim 11 , wherein the control unit determines a correction amount of the correction distance based on a positioning estimation error. The network device control unit is based on the moving speed of the mobile station device detected by the speed detecting unit, and the distance between the position of the mobile station device calculated by the position calculating unit and the predetermined position stored in the storage unit. The base station apparatus according to any one of claims 10 to 12 , wherein an arrival time to the predetermined position is calculated, and a network apparatus is controlled based on the arrival time. When a positioning command is input, a first process of receiving a positioning signal;
A second step of calculating the position of the mobile station apparatus from the positioning signal received by the first step;
A third step of storing predetermined position information;
A fourth step of calculating a reception signal level indicating reception quality of a transmission signal transmitted by a predetermined base station device;
Based on the magnitude of the received signal level calculated in the fourth process, the positioning command is determined according to the distance between the position of the mobile station apparatus calculated in the second process and the predetermined position stored in the third process. A fifth process for determining the timing to output
Mobile station apparatus control method and a sixth step of outputting the positioning instruction at the timing when the fifth process was determined. When a positioning command is input, a first process of receiving a positioning signal;
A second step of calculating the position of the mobile station apparatus from the positioning signal received by the first step;
A third step of storing a predetermined route along which the mobile station device moves ;
A fourth step of determining the timing for outputting the positioning command according to the distance between the position of the mobile station apparatus calculated by the second step and the predetermined path stored by the third step;
And a fifth process of outputting the positioning command at a timing determined by the fourth process.

Images