JP2005197799A - Mobile apparatus, method and program for controlling mobile apparatus, program, and computer-readable recording medium with the program recorded thereon - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect movement of a mobile apparatus to the inside and the outside of a vehicle and automatically and quickly switch an operating mode of the mobile apparatus. <P>SOLUTION: The mobile apparatus has first and second modes as the operating modes. The mobile apparatus is provided with a speed measurement unit, an acceleration measurement unit, and a control unit. The control unit uses the acceleration measurement unit to repetitively measure the acceleration of the mobile apparatus while the mobile apparatus is in operation in the first mode, and sets the operating mode to the second mode when the measured acceleration consecutively exceeds a prescribed threshold acceleration for a prescribed first period. Further, the control unit uses the speed measurement unit to repetitively measure the speed of the mobile apparatus while the mobile apparatus is in operation in the second mode, and sets the operating mode to the first mode when the measured speed is consecutively a prescribed threshold speed or below for a prescribed second period. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to control of operation of a portable device.

Patent Document 1 below discloses a technique for automatically performing incoming call control or call control when it is detected that a mobile phone is moving at a speed exceeding a predetermined threshold. In Patent Document 2 below, the position of the mobile phone is measured, and it is detected that the mobile phone is stopped near the station in accordance with the railway line information, and then the mobile phone exceeds a predetermined threshold along the route. A technology is disclosed that automatically switches the operation mode of a mobile phone when it is detected that the mobile phone is moving at a speed of 3 mm.
JP-A-10-243465 JP 2002-300632 A

  Recently, the rules for using mobile phones in trains have been standardized, and thus users have to change the mobile phone to manner mode or turn off the power when getting on. However, the user of the mobile phone does not always perform such an operation every time he gets on.

  Accordingly, an object of the present invention is to provide a technique for detecting the movement of the portable device into and out of the vehicle and automatically and quickly switching the operation mode of the portable device.

  In one aspect, the present invention relates to a portable device having first and second modes as operation modes. The portable device includes a speed measuring device that measures the speed of the portable device, an acceleration measuring device that measures acceleration of the portable device, and a control device that determines an operation mode. While the mobile device is operating in the first mode, the control device repeatedly measures the acceleration of the mobile device using the acceleration measuring instrument, and the measured acceleration continues the predetermined threshold acceleration over a predetermined first period. The first procedure for setting the operation mode to the second mode is executed. Further, the control device repeatedly measures the speed of the mobile device using the speed measuring device while the mobile device is operating in the second mode, and the measured speed is continuously determined over a predetermined second period. When the speed is equal to or lower than the threshold speed, the second procedure for setting the operation mode to the first mode is executed.

  A relatively low speed movement and a relatively high speed movement of the portable device are determined according to the acceleration and speed of the portable device. The acceleration is used to determine the transition of the portable device from low speed movement to high speed movement, and the speed is used to determine the movement of the portable device from high speed movement to low speed movement. If the threshold acceleration, the first period, the threshold speed, and the second period are appropriately set, it can be determined that the movement status of the user carrying the portable device has shifted from walking to movement by a vehicle. As described above, the portable device can determine the movement situation of the user using the acceleration and the speed, and can automatically switch the operation mode according to the change of the movement situation. Switching from the first mode to the second mode is determined using acceleration instead of speed. When the vehicle starts after the user gets on the stopped vehicle, it takes a relatively long time until the speed of the portable device increases to the threshold value. Therefore, when determining the transition from the low speed movement to the high speed movement using the speed, it takes time to switch the operation mode. On the other hand, when the transition from low-speed movement to high-speed movement is determined using acceleration, if the threshold acceleration is appropriately set, the above-mentioned first necessary for distinguishing between the user's walk and the vehicle travel The period can be set relatively short. This is because the acceleration has a high value immediately after the vehicle starts. Therefore, according to the present invention, it is possible to quickly switch the operation mode in accordance with the shift of the portable device from the low speed movement to the high speed movement.

  The control device may further execute a third procedure prior to the first and second procedures. In this third procedure, the control device measures the speed of the portable device using the speed measuring device, sets the operation mode to the first mode when the measured speed is equal to or lower than the threshold speed, and measures the measured speed. When the value exceeds the above threshold speed, the operation mode is set to the second mode.

  In the first procedure, when the measured acceleration does not continuously exceed the threshold acceleration over the first period, the control device measures the velocity of the portable device using the velocity meter, and the measured velocity is the threshold velocity of the vapor. The operation mode may be set to the second mode when exceeding.

  In another aspect, the present invention relates to a method for controlling a portable device having first and second modes as operation modes. This method comprises first and second procedures. In the first procedure, while the portable device is operating in the first mode, the acceleration of the portable device is repeatedly measured, and the operation is performed when the measured acceleration continuously exceeds a predetermined threshold acceleration for a predetermined first period. Set the mode to the second mode. In the second procedure, while the mobile device is operating in the second mode, the speed of the mobile device is repeatedly measured using a speed measuring device, and the measured speed is continuously measured over a predetermined second period. When the speed is equal to or lower than the speed, the operation mode is set to the first mode.

  In another aspect, the present invention relates to a program for controlling a portable device having first and second modes as operation modes. The portable device includes a speed measuring device that measures the speed of the portable device, an acceleration measuring device that measures the acceleration of the portable device, and a control device that determines an operation mode according to the program. This program causes the control device to execute the first and second procedures. In the first procedure, while the portable device is operating in the first mode, the control device repeatedly measures the acceleration of the portable device using the acceleration measuring instrument, and the measured acceleration reaches a predetermined threshold acceleration. The operation mode is set to the second mode when it continuously exceeds one period. In the second procedure, while the mobile device is operating in the second mode, the control device repeatedly measures the speed of the mobile device using the speed measuring device, and the measured speed continues for a predetermined second period. When the speed is below a predetermined threshold, the operation mode is set to the first mode.

  This program may cause the control device to further execute the third procedure when the program is started. In the third procedure, the control device measures the speed of the portable device using the speed measuring device, sets the operation mode to the first mode when the measured speed is equal to or lower than the threshold speed, and the measured speed is When the threshold speed is exceeded, the operation mode is set to the second mode.

  Under the control by this program, in the first procedure, when the measured acceleration does not continuously exceed the threshold acceleration over the first period, the control device measures the speed of the portable device using the speed measuring device, and measures the speed. The operation mode may be set to the second mode when the set speed exceeds the threshold speed.

  In still another aspect, the present invention relates to a computer-readable recording medium on which the above program is recorded.

  In the present invention, since the transition from the low speed movement to the high speed movement of the portable device is determined using the acceleration, the operation mode of the portable device can be quickly switched according to the movement of the portable device from the outside of the vehicle to the inside of the vehicle. it can. The present invention also increases the accuracy of mode transition by providing a grace period before determining the transition between the two operation modes.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a block diagram schematically showing the configuration of the portable device of the present embodiment. The mobile device according to the present embodiment is a mobile phone 1 that can perform wireless communication with a communication network 2. The mobile phone 1 has two types of call modes as operation modes. One is the normal mode and the other is the manner mode. In the normal mode, the mobile phone 1 reproduces a predetermined ringtone when receiving an incoming call. On the other hand, in the manner mode, the mobile phone 1 notifies the user of the incoming call by vibrating the mobile phone 1 without playing a ringtone when receiving an incoming call. In the present embodiment, these operation modes are automatically switched according to the movement status of the mobile phone 1.

  The mobile phone 1 is a computer, and as shown in FIG. 1, a CPU (Central Processing Unit) 10, a RAM (Random Access Memory) 12, a storage unit 14, a communication unit 16 , Measuring unit 18, input device 20, and display device 22. These components are connected to each other by a bus 25. Data and control signals are transmitted between these components over bus 25.

  The CPU 10 is a control arithmetic device that controls the operation of the mobile phone 1 by executing a program. The RAM 12 is a main storage device that is used by the CPU 10 to execute a program. The RAM 12 stores a program executed by the CPU 10 and data necessary for the execution.

  The storage unit 14 is an auxiliary storage device of the mobile phone 1 and includes a built-in memory 14 a and a reading device 14 b for the external memory 15. The built-in memory 14 a is a storage device fixed inside the mobile phone 1. The built-in memory 14a may be a non-volatile memory such as a flash memory. The reading device 14 b is a device for reading data from the external memory 15 that is detachable from the mobile phone 1. The external memory 15 is a computer-readable recording medium, for example, various card type memories. In the present embodiment, the operation control program of the mobile phone 1 is stored in the built-in memory 14a. The operation control program may be read from the external memory 15 into the internal memory 14a. The operation control program is read from the built-in memory 14a into the RAM 12 at the time of activation. The operation control program may be automatically activated in response to power-on of the mobile phone 1 or may be manually activated in response to an activation command input using the input device 20.

  The communication unit 16 controls communication between the mobile phone 1 and the communication network 2. In addition to the antenna 17 for transmitting and receiving radio waves, the communication unit 16 vibrates the mobile phone 1 in a manner mode, a microphone that converts transmitted voice into an electrical signal, a speaker that outputs received voice, a signal processing circuit that processes voice signals, and a manner mode. It includes a mechanism for making it happen. The communication unit 16 transmits and receives radio waves through the antenna 17 under the control of the CPU 10 and wirelessly connects to the communication network 2. Thereby, communication is established between the mobile phone 1 and the communication network 2. The communication device 16 can execute data communication in addition to voice communication.

  The measurement unit 18 measures the speed and acceleration of the mobile phone 1. The measurement unit 18 includes a GPS (Global Positioning System) receiver 18a and an acceleration sensor 18b. The GPS receiver 18 a receives the GPS signal 28 from the GPS satellite 26 and sends positioning data corresponding to the GPS signal 28 to the CPU 10. This positioning data includes a pair of latitude data and longitude data indicating the position of the mobile phone 1. As will be described later, this positioning data is used to calculate the speed of the mobile phone 1. That is, the GPS receiver 18a and the CPU 10 function as a speed measuring device. Although the GPS receiver 18a receives GPS signals from a plurality of GPS satellites, only one GPS satellite 26 is shown in FIG. The acceleration sensor 18 b measures the acceleration a of the mobile phone 1 and sends the obtained acceleration data to the CPU 10. The acceleration sensor 18b is, for example, a piezoelectric sensor or an inductance sensor.

  The input device 20 is used to input commands and data to the mobile phone 1. The input device 20 may be a device that is directly operated by the user, such as a button, a dial, or a switch, or may be a voice recognition device that discriminates a voice uttered by the user. The display device 22 displays various information under the control of the CPU 10.

  Hereinafter, processing for controlling the operation of the mobile phone 1 will be described with reference to FIGS. FIG. 2 is a flowchart of this operation control process. FIGS. 3A to 3C show changes in speed v, acceleration a, and call mode of the mobile phone 1 in an example of the operation control process. FIG. 4 is a state transition diagram showing changes in the operating state of the mobile phone 1. When the operation control program is activated, the operation of the mobile phone 1 is automatically controlled according to the operation control program. The operation control program is read from the built-in memory 14 a into the RAM 12 and executed by the CPU 10.

  First, an outline of operation control of the mobile phone 1 will be described with reference to FIG. As shown in FIG. 4, the mobile phone 1 can take four states in this operation control. That is, the low-speed mode state 60, the first transition state 62, the high-speed mode state 64, and the second transition state 66. In the low speed mode state 60 and the first transition state 62, the mobile phone 1 operates in the low speed mode. The low speed mode is an operation mode when the mobile phone 1 moves at a relatively low speed, and is a normal mode in the present embodiment. In the high speed mode state 64 and the second transition state 66, the mobile phone 1 operates in the high speed mode. The high speed mode is an operation mode when the mobile phone 1 moves at a relatively high speed, and is a manner mode in the present embodiment.

In the present embodiment, the acceleration a of the portable telephone 1 operating in a low speed mode exceeds a predetermined閾加speed a _th, the mobile phone 1 changes from the low speed mode state 60 to the first transition state 62. In the first transition state 62, it is determined whether or not the movement status of the mobile phone 1 has shifted from a low speed movement to a high speed movement. When it is determined that the mobile phone 1 has shifted to high speed movement, the mobile phone 1 transitions to the high speed mode state 64 and operates in the high speed mode. On the other hand, if it is determined that the mobile phone 1 has not shifted to the high speed movement, the mobile phone 1 returns to the low speed mode state 60 and continues to operate in the low speed mode.

When the speed v of the mobile phone 1 operating in the high speed mode becomes equal to or lower than a predetermined threshold speed v _th , the mobile phone 1 changes from the high speed mode state 64 to the second transition state 66. In the second transition state 66, it is determined whether or not the movement status of the mobile phone 1 has shifted from high speed movement to low speed movement. If it is determined that the mobile phone 1 has shifted to low speed movement, the mobile phone 1 transitions to the low speed mode state 60 and operates in the low speed mode. On the other hand, if it is determined that the low-speed movement has not been made, the mobile phone 1 returns to the high-speed mode state 64 and continues to operate in the high-speed mode.

  As described above, the transition from the low speed mode to the high speed mode is determined according to the acceleration of the mobile phone 1, and the transition from the high speed mode to the low speed mode is determined according to the speed of the mobile phone 1.

  Hereinafter, the transition of the movement status of the mobile phone 1 in the example of FIG. 3 will be described with reference to FIG. In this example, the user moves to the train station on foot while carrying the mobile phone 1, gets on the train, moves to the second station, gets off at that station, and then walks again. Reference numerals 41 and 47 in FIG. 3A indicate a situation where the user is moving on foot. Reference numeral 42 indicates the departure time of the train. Reference numerals 43 and 45 indicate the situation where the train is running. Reference numerals 44 and 46 indicate when the train stops. The mobile phone 1 moves at the walking speed when the user walks, and moves at the traveling speed of the train when the user is on the train.

  Hereinafter, the operation control processing of the mobile phone 1 will be described in detail with reference to FIG. When the operation control program is activated, the speed v of the mobile phone 1 is measured (step S202). In this step, the GPS receiver 18 a acquires the positioning data of the mobile phone 1 from the GPS satellite 26 and sends it to the CPU 10. Usually, positioning data is acquired twice at predetermined time intervals. The CPU 10 calculates the distance v between the two acquired positioning data, and calculates the speed v of the mobile phone 1 by dividing the distance by the measurement time interval. In this way, the speed v of the mobile phone 1 is measured.

The CPU 10 compares the measured speed v with a predetermined threshold speed v _th (step S204). The threshold speed _{v th} is read into the RAM12 from the built-in memory 14a with the operation control program. The threshold speed v _th is used to determine whether the call mode of the mobile phone 1 should be set to the normal mode or the manner mode. When measured speed v is equal to or lower than threshold speed v _th (No in step S204), CPU 10 sets mobile phone 1 to the normal mode (step S206). On the other hand, the measurement speed v does exceed the threshold velocity _{v th,} CPU 10 sets the cellular phone 1 in the manner mode (step S220).

In the example shown in FIG. 3, at the startup t0 of the operation control program speed v of the mobile phone 1 is lower than the threshold speed v _th (see Figure 3 (a)). For this reason, the mobile phone 1 is set to the normal mode 52 as shown in FIG.

  Steps S208 to S218 executed after the setting of the normal mode (step S206) are processes for detecting the shift of the mobile phone 1 to high speed movement. The mobile phone 1 in the normal mode detects the shift of the mobile phone 1 to high speed movement according to the acceleration a and the speed v of the mobile phone 1 and switches the call mode of the mobile phone 1 to the manner mode.

More specifically, the CPU 10 substitutes the current time for the reference time variable t _ref in the RAM 12 to start time measurement (step S208), and then uses the acceleration sensor 18b to accelerate the acceleration a of the mobile phone 1. Is measured (step S210). The measured acceleration a data is sent to the CPU 10. CPU10 determines whether or not continuously exceeds a predetermined閾加speed a _th for a period of time is measured acceleration a. That is, the CPU 10 compares the measured acceleration a with the threshold acceleration a _th (step S212), and when a> a _th (Yes in step S212), calculates (t−t _ref ) to calculate a predetermined threshold period T1. (Step S214). Here, t is the current time, and the reference time variable t _ref indicates the time measurement start time. Between閾加speed _{a th} and threshold period T1 are read into the RAM12 from the internal memory 14a at the start of the operation control program.

When (t−t _ref )> T1 (Yes in step S214), the CPU 10 sets the call mode of the mobile phone 1 to the manner mode (step S220). Thus, when continuously exceeds閾加speed a _th for a period of time is measured acceleration a, the portable telephone 1 is set to the manner mode. On the other hand, if (t−t _ref ) ≦ T1 (No in step S214), acceleration a is measured again (step S210), and the processes after step S212 are repeated.

If a ≦ a _th (No in step S212), it is determined according to the speed v of the mobile phone 1 whether or not the mobile phone 1 has shifted to high speed movement. That is, when the shift to the high-speed movement of the mobile phone 1 is not detected based on the acceleration, the detection based on the speed is subsequently performed. The CPU 10 measures the speed v of the mobile phone 1 (step S216), and compares the measured speed v with the threshold speed v _th (step S218). The measurement in step S216 is performed in the same manner as in step S202 described above.

When v> v _th (Yes in Step S218), the CPU 10 sets the call mode of the mobile phone 1 to the manner mode (Step S220). On the other hand, if v ≦ v _th (No in step S218), the process returns to step S208, and the time measurement is reset.

  As described above, the mobile phone 1 continuously checks whether or not the mobile phone 1 has shifted to high-speed movement while operating in the normal mode based on the acceleration and speed of the mobile phone 1 and moves to high-speed movement. Is detected, the mobile phone 1 is switched to the manner mode.

Incidentally,閾加speed a _th and threshold period between T1, the acceleration and the target vehicle (train, car, etc.) occurring during human walking and running is set so as to distinguish between acceleration at the start of the. This is based on the fact that it is difficult for humans to maintain a large acceleration for a long time. If the target vehicle is a train or a car, the threshold period T1 is usually set to 3 seconds or more.閾加rate a _th, it is difficult to maintain human over threshold period between T1, is set yet for a period T1 to the acceleration that the vehicle can be maintained.

As shown in FIG. 3 (b), in the user's walking, the acceleration a of the mobile phone 1 is less than閾加speed a _th, the speed v is also less than a threshold speed v _th. For this reason, switching from the normal mode to the manner mode is not performed. User gets on a train, after the train has departure, acceleration of the mobile telephone 1 has reached the閾加speed a _th at time t1. Thereafter, the continuous acceleration exceeding a _th is maintained over the period T1, the mobile telephone 1 is switched to silent mode at time t2. This time t2 is substantially equal to t1 + T1. During the period from time t1 to time t2, the mobile phone 1 is in the first transition state 62 shown in FIG.

  Steps S222 to S228 executed after the manner mode is set (step S220) are processes for detecting the shift of the mobile phone 1 to low speed movement. The cellular phone 1 in the manner mode detects the shift of the cellular phone 1 to low speed movement according to the speed v of the cellular phone 1 and switches the call mode of the cellular phone 1 to the normal mode.

Specifically, the CPU 10 substitutes the current time for the reference time variable t _ref in the RAM 12 to start time measurement (step S222), and then measures the speed v of the mobile phone 1 (step S224). . The measurement in step S224 is performed in the same manner as in step S202 described above. Data of the measured speed v is sent to the CPU 10. The CPU 10 determines whether or not the measured speed v continuously exceeds the threshold speed v _th over a certain period. That is, the CPU 10 compares the measured speed v with the threshold speed v _th (step S226), and when v ≦ v _th (No in step S226), calculates (t−t _ref ) to calculate a predetermined threshold period T2. (Step S228). Here, t is the current time, and the reference time variable t _ref indicates the time measurement start time. Between a threshold speed _{v th} and threshold period T2 is read into RAM12 from the internal memory 14a at the start of the operation control program.

When (t−t _ref )> T2 (Yes in step S228), CPU 10 sets the call mode of mobile phone 1 to the normal mode (step S206). Thus, when continuously falls below a threshold speed v _th for a period of time is measured rate v, the mobile phone 1 is set to the normal mode. On the other hand, when (t−t _ref ) ≦ T2 (No in step S228), the speed v is measured again (step S224), and the processes after step S226 are repeated.

On the other hand, if v> v _th (Yes in step S226), the process returns to step S222, and the time measurement is reset.

  As described above, the mobile phone 1 continuously checks whether or not the mobile phone 1 has shifted to the low speed movement while operating in the manner mode, and shifts to the low speed movement. Is detected, the mobile phone 1 is switched to the normal mode.

In the example shown in FIG. 3, T2 is set to 60 seconds. This is longer than the standard stop time at the target train station. In this example, after the time t2 at which the portable telephone 1 is set to the manner mode, decelerated to train stops at the first stop, lowering the speed the time t3 of the cellular phone 1 in response thereto until a threshold speed v _th To do. Furthermore, when the vehicle stops at the train station, the speed of the mobile phone 1 decreases to zero. Then, when the train starts moving, the speed of the mobile phone 1 increases, at time t4 reaches a threshold speed v _th. From time t3 to time t4 speed of the mobile phone 1 is less continuously threshold velocity v _th. However, as shown in FIG. 3A, the interval Δt ₃₄ between time t3 and time t4 is shorter than the above threshold period T2, and therefore switching to the normal mode is not determined in step S228. Therefore, as shown in FIG. 3C, the cellular phone 1 maintains the manner mode 54 from time t2 to time t4. During the period from time t3 to time t4, the mobile phone 1 is in the second transition state 66 shown in FIG.

Thereafter, the train decelerates to stop at the next station, and accordingly the speed of the mobile phone 1 decreases to the threshold speed v _th at time t5. Since the speed of the mobile phone 1 exceeds the threshold speed v _th from time t4 to time t5, the mobile phone 1 maintains the manner mode 54. Thereafter, when the train stops at the station, the user gets off and moves on foot. In response to this, after the time t5, the speed of the cellular phone 1 will be continuously below the threshold speed v _th beyond the threshold period between T2. Therefore, as shown in FIG. 3C, the mobile phone 1 is switched to the normal mode 50 at time t6 when the threshold period T2 has elapsed from time t5. During the period from time t5 to time t6, the mobile phone 1 is in the second transition state 66 shown in FIG.

  Below, the advantage of this embodiment is demonstrated. In the present embodiment, a relatively low speed movement by the user's walking and a relatively high speed movement by the vehicle are determined according to the acceleration and speed of the mobile phone 1. Thereby, it is possible to automatically set an appropriate call mode according to the movement status of the mobile phone 1.

  Switching from the normal mode to the manner mode is mainly determined according to the acceleration of the mobile phone 1. When the vehicle starts after the user gets on the stopped vehicle, a relatively long time is required until the speed of the mobile phone 1 increases to the threshold value. Therefore, if it is determined from the low speed movement to the high speed movement based on only the speed, it takes time to switch the call mode. On the other hand, when the transition from the low-speed movement to the high-speed movement is determined based on the acceleration, if the threshold acceleration is appropriately set, the above-described period T1 necessary for distinguishing between the user's walk and the traveling of the vehicle. Can be set relatively short. This is because the acceleration has a high value immediately after the vehicle starts. Therefore, the mobile phone 1 can be quickly switched from the normal mode to the manner mode in accordance with the shift of the mobile phone 1 from the low speed movement to the high speed movement.

  In addition, since the grace period, that is, the threshold periods T1 and T2 described above, is provided before the transition between the two call modes is determined, an exceptional movement situation such as instantaneous acceleration / deceleration or short-time speed reduction. It is possible to prevent an erroneous setting of the mode according to the change of. Therefore, it is possible to switch the call mode more accurately compared to the method of switching the mode immediately according to the acceleration or the speed.

  The present invention has been described in detail based on the embodiments. However, the present invention is not limited to the above embodiment. The present invention can be variously modified without departing from the gist thereof.

  In the above embodiment, the mobile phone 1 is used as a mobile device. However, the present invention can also be applied to other portable devices such as a portable audio reproduction device and video reproduction device. For these devices, for example, operation modes with different playback volumes may be set for low-speed movement and high-speed movement.

  The call mode when the mobile phone 1 moves at high speed is not limited to the manner mode, and may be another operation mode, for example, an incoming call prohibition mode.

  In the above embodiment, the call mode of the mobile phone 1 is first set according to the speed of the mobile phone 1 when the operation control program is started (steps S202 and S204). However, steps S202 and S204 may be omitted and a default operation mode may be determined in advance. For example, if the default operation mode is the manner mode, the processing after step S206 is executed in response to the activation of the operation control program. If the default operation mode is the normal mode, the processing after step S212 is executed in response to the activation of the operation control program.

  In the said embodiment, GPS is utilized as a satellite positioning system, and the positioning data of the mobile telephone 1 are acquired from a GPS satellite. However, you may acquire the positioning data of a portable apparatus from the positioning satellite of another satellite positioning system. Further, instead of calculating the speed of the portable device using the positioning data acquired from the satellite, the speed may be measured by another method. For example, the mobile phone 1 may calculate the speed of the mobile phone 1 based on a change in radio waves received from a base station in the wireless telephone network 2. Alternatively, the acceleration may be measured using an acceleration sensor, and the speed may be calculated by integrating the acceleration over time.

It is a block diagram which shows roughly the structure of the mobile telephone of embodiment. It is a flowchart of an operation control process. It is a figure which shows the example of the time change of the speed of the mobile telephone shown by FIG. 1, acceleration, and an operation mode. FIG. 2 is a state transition diagram of the mobile phone shown in FIG. 1.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mobile phone, 2 ... Communication network, 10 ... CPU, 12 ... RAM, 14 ... Storage part, 16 ... Communication part, 18 ... Measuring part, 18a ... GPS receiver, 18b ... Accelerometer, 20 ... Input device, 22 ... display device, 25 ... bus, 26 ... GPS satellite, 28 ... GPS signal.

Claims (8)

A portable device having first and second modes as operation modes,
A speed measuring instrument for measuring the speed of the portable device;
An acceleration measuring instrument for measuring the acceleration of the portable device;
A control device for determining the operation mode;
With
The control device includes:
While the portable device is operating in the first mode, the acceleration measuring device is used to repeatedly measure the acceleration of the portable device, and the measured acceleration is continuously applied to a predetermined threshold acceleration for a predetermined first period. A first procedure for setting the operation mode to the second mode when exceeding
While the portable device is operating in the second mode, the velocity measuring device is used to repeatedly measure the velocity of the portable device, and the measured velocity is continuously a predetermined threshold speed over a predetermined second period. A second procedure for setting the operation mode to the first mode when:
Run the
Portable device. The control device further executes a third procedure prior to the first and second procedures,
In the third procedure, the control device measures the speed of the portable device using the speed measuring device, and sets the operation mode to the first mode when the measured speed is equal to or lower than the threshold speed, When the measured speed exceeds the threshold speed, the operation mode is set to the second mode;
The portable device according to claim 1. In the first procedure, when the measured acceleration does not continuously exceed the threshold acceleration over the first period, the control device measures and measures the speed of the portable device using the speed measuring device. Setting the operating mode to the second mode when the speed exceeds the threshold speed;
The portable device according to claim 1 or 2. A method for controlling a portable device having first and second modes as operation modes, the method comprising:
While the portable device is operating in the first mode, the operation mode is measured when the acceleration of the portable device is repeatedly measured and the measured acceleration continuously exceeds a predetermined threshold acceleration for a predetermined first period. A first procedure for setting the second mode to the second mode;
While the portable device is operating in the second mode, the velocity measuring device is used to repeatedly measure the velocity of the portable device, and the measured velocity is continuously a predetermined threshold speed over a predetermined second period. A second procedure for setting the operation mode to the first mode when:
A method comprising: A program for controlling a portable device having first and second modes as operation modes,
The portable device includes a speed measuring device that measures the speed of the portable device, an acceleration measuring device that measures acceleration of the portable device, and a control device that determines the operation mode according to the program,
While the portable device is operating in the first mode, the acceleration measuring device is used to repeatedly measure the acceleration of the portable device, and the measured acceleration is continuously applied to a predetermined threshold acceleration for a predetermined first period. A first procedure for setting the operation mode to the second mode when exceeding
While the portable device is operating in the second mode, the velocity measuring device is used to repeatedly measure the velocity of the portable device, and the measured velocity is continuously a predetermined threshold speed over a predetermined second period. A second procedure for setting the operation mode to the first mode when:
A program for causing the control device to execute. The program according to claim 1, further causing the control device to execute a third procedure when starting the program,
In the third procedure, the control device measures the speed of the portable device using the speed measuring device, and sets the operation mode to the first mode when the measured speed is equal to or lower than the threshold speed, When the measured speed exceeds the threshold speed, the operation mode is set to the second mode;
The program according to claim 1. In the first procedure, when the measured acceleration does not continuously exceed the threshold acceleration over the first period, the control device measures and measures the speed of the portable device using the speed measuring device. Setting the operating mode to the second mode when the speed exceeds the threshold speed;
The program according to claim 5 or 6.   The computer-readable recording medium which recorded the program in any one of Claims 5-7.

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