JP6152686B2 - Portable terminal device, control method, and program - Google Patents

Description

  The present invention relates to a power saving technique for a mobile terminal device.

  With respect to portable terminal devices, a power saving mode in which the display device is turned off when not in use may be employed to reduce power consumption. When the user turns on the display device in the power saving mode, a lighting instruction operation is performed.

  A certain patent document discloses a technique for lighting a display device in a power saving mode when a period during which a large acceleration does not occur and a large acceleration thereafter are detected. As described above, when the display device is automatically turned on when certain conditions are satisfied with respect to the period and the acceleration, the troublesomeness regarding the operation of the lighting instruction by the user is eliminated.

  However, there are various situations in which the display device should be turned on depending on how the user uses it. If the judgment is wrong and lighting is performed in an unnecessary situation, power is wasted.

JP 2006-174340 A

  An object of the present invention is, in one aspect, to reduce wasteful power consumption due to automatic lighting that does not conform to the user's will.

  The mobile terminal device according to one aspect includes a generation unit that generates a change pattern of its posture angle or posture angular velocity indicating a transition to reception of a lighting instruction, and a change of a measurement value of the posture angle or posture angular velocity is collated with the change pattern. And a lighting unit for lighting the display device based on the result of the matching.

  In one aspect, wasteful power consumption due to automatic lighting that does not conform to the user's will can be reduced.

FIG. 1 is a diagram illustrating an example of a posture angle transition. FIG. 2 is a diagram illustrating examples of posture angles. FIG. 3 is a diagram illustrating a hardware configuration example of the mobile terminal device. FIG. 4 is a diagram illustrating a module configuration example of the mobile terminal device. FIG. 5 is a diagram illustrating an example of measurement data. FIG. 6 is a diagram illustrating an example of transition data. FIG. 7 is a diagram illustrating an example of a change pattern. FIG. 8 is a diagram illustrating an example of a learning process flow. FIG. 9 is a diagram illustrating an example of a generation processing flow. FIG. 10 is a diagram illustrating an example of the similarity determination process flow. FIG. 11 is a diagram illustrating an example of an operation processing flow. FIG. 12 is a diagram illustrating an example of a verification processing flow. FIG. 13 is a diagram illustrating an example of a common processing flow.

[Embodiment 1]
In the present embodiment, the display device that is turned off is turned on based on a change in the attitude of the mobile terminal device. Therefore, the mobile terminal device measures the posture angle and the posture angular velocity using a sensor built in the mobile terminal device, and grasps the transition of the measured posture angle and posture angular velocity.

  First, the transition of measured values will be described. FIG. 1 shows a transition example of the posture angle. The upper part schematically shows the posture of the mobile terminal device 101a to the mobile terminal device 101g. The posture of the mobile terminal device 101a to the mobile terminal device 101g corresponds to a transition from taking the mobile terminal device 101 out of the breast pocket and holding it in front of the face.

  The lower part shows a graph of the attitude angle measured by the mobile terminal device 101. The vertical axis of the graph represents the elevation angle, and the horizontal axis of the graph represents the elapsed time. The elevation angle in this example is an angle formed by a longitudinal axis in the head direction and a horizontal plane. The elevation angle is an example of a posture angle.

  The posture of the mobile terminal device 101a corresponds to a state in which the mobile terminal device 101 is stored in the breast pocket upside down. At this time, the longitudinal head axis is directed downward. Therefore, as shown by the point 103a, the elevation angle is about -90 degrees. When the mobile terminal device 101 is extracted from this posture, some acceleration and angular velocity are generated. With this as an opportunity, data on transition is collected.

  The posture of the mobile terminal device 101b corresponds to a state in which the mobile terminal device 101 is extracted from the breast pocket. At this time, the longitudinal axis of the head is starting to face upward. Therefore, as shown by the point 103b, the elevation angle is about −50 degrees.

  The attitude of the mobile terminal device 101c corresponds to a state in which the mobile terminal device 101 starts moving. At this time, the longitudinal axis in the head direction is substantially horizontal. Therefore, as shown by the point 103c, the elevation angle is approximately 0 degrees.

  The postures of the mobile terminal devices 101d to 101f correspond to the moving state of the mobile terminal device 101. At this time, the longitudinal axis of the head is gradually upward. Accordingly, as indicated by the points 103d, 103e, and 103f, the elevation angles are approximately 15 degrees, 35 degrees, and 50 degrees, respectively.

  The attitude of the mobile terminal device 101g corresponds to a state in which the mobile terminal device 101 has completed the movement. At this time, the longitudinal axis in the head direction is directed substantially upward. Therefore, as shown at point 103g, the elevation angle is approximately 90 degrees. Normally, a lighting instruction operation is performed in this state. When this operation is accepted, collection of data related to the transition ends.

  Here, as an example of the posture angle, the elevation angle formed by the axis in the longitudinal head direction is shown, but other posture angles may be used. FIG. 2 shows an example of the posture angle. In this figure, the longitudinal axis in the head direction is taken as the X axis. In addition, the right-hand axis of the side is taken as the Y-axis. The axis from the front to the back is the Z axis. As shown in FIG. 2, the rotation angle in the X axis is called a roll angle β. Further, the rotation angle on the Y axis is called a pitch angle α. Further, the rotation angle at Z is called the yaw angle γ.

  The elevation angle formed by the longitudinal axis of the head corresponds to the pitch angle α with respect to the horizontal plane. You may make it use roll angle (beta) on the basis of a horizontal surface. Or you may make it use the roll angle (beta) on the basis of the attitude | position at the time of an opportunity. Or you may make it use the pitch angle (alpha) on the basis of the attitude | position at the time of an opportunity. Or you may make it use the yaw angle (gamma) on the basis of the attitude | position at the time of an opportunity.

  Also, posture angular velocity may be used instead of the posture angle. The posture angular velocity also changes according to how the mobile terminal device 101 is handled, similarly to the posture angle. For example, roll angular velocity, pitch angular velocity, or yaw angular velocity may be used.

  In this example, the elevation angle (indicated by the variable θ) formed by the longitudinal axis in the head direction is combined with the pitch angular velocity (indicated by the variable ω). That is, a plurality of measurement values are used in combination. However, other posture angles or other posture angular velocities may be used. One posture angle and a plurality of posture angular velocities may be combined. A plurality of posture angles and one posture angular velocity may be combined. A plurality of posture angles and a plurality of posture angular velocities may be combined. A plurality of posture angles may be combined. A plurality of posture angular velocities may be combined. One measurement value may be sufficient. That is, one posture angle or one posture angular velocity may be used. This is the end of the explanation of the transition of the measurement value.

  Next, the hardware configuration of the mobile terminal device 101 will be described. FIG. 3 shows a hardware configuration example of the mobile terminal device 101. The mobile terminal device 101 includes a RAM 303, a speaker 305, an LCD (Liquid Crystal Display) 307, a touch panel 309, a microphone 311, a NAND (Not AND) memory 313, a communication CPU (Central Processing Unit) 315, an application CPU 317, a short distance. Communication device 319, GPS (Global Positioning System) device 321, wireless LAN (Local Area Network) device 323, DSP (Digital Signal Processor) 325, ISP (Image Signal Processor) 327, camera 329, bus 331, A sub processor 333, a geomagnetic sensor 335, a gyro sensor 337, and an acceleration sensor 339 are included. Among them, the RAM 303, the speaker 305, the LCD 307, the touch panel 309, the microphone 311, the NAND memory 313, the communication CPU 315, the application CPU 317, the short-range communication device 319, the GPS device 321, the wireless LAN device 323, the DSP 325, the ISP 327, and the camera 329 are connected to the bus 331. Connected through. The LCD 307 is an example of a display device. The LCD 307 includes a backlight.

  The RAM 303 stores, for example, programs and data. The speaker 305 outputs sound. The LCD 307 displays images and screens. The touch panel 309 detects a contact state and a contact position. The microphone 311 inputs sound. The NAND memory 313 is a flash memory of a nonvolatile storage element. The NAND memory 313 stores programs and data, for example. The communication CPU 315 performs a calculation process related to the communication process. The application CPU 317 is an arithmetic device that executes application software. The near field communication device 319 is a device that controls near field communication. The GPS device 321 is a device that measures a position. The wireless LAN device 323 is a device that controls wireless LAN communication. The DSP 325 is a processor that performs digital signal processing. The ISP 327 is a processor that performs image processing. The camera 329 is a device for photographing. The application CPU 317 is connected to the sub processor 333. The sub processor 333 is connected to the geomagnetic sensor 335, the gyro sensor 337, and the acceleration sensor 339. The sub processor 333 controls the geomagnetic sensor 335, the gyro sensor 337, and the acceleration sensor 339. The geomagnetic sensor 335 is a device that detects the direction of geomagnetism and calculates the direction. The gyro sensor 337 is a device that detects a posture angular velocity. The acceleration sensor 339 measures acceleration. The geomagnetic sensor 335 and the gyro sensor 337 also measure the posture angle.

  In this example, the application CPU 317 acquires the measurement results of the geomagnetic sensor 335, the gyro sensor 337, and the acceleration sensor 339 via the sub processor 333, but the application CPU 317 directly acquires the geomagnetic sensor 335, the gyro sensor 337, and the acceleration sensor 339. The measurement result may be acquired.

  The mobile terminal device 101 may be, for example, a game machine, a controller, an electronic clock, or an electronic dictionary in addition to a mobile phone terminal device (including a smartphone). This is the end of the description of the hardware configuration of the mobile terminal device 101.

  Next, the module configuration of the mobile terminal device 101 will be described. FIG. 4 shows a module configuration example of the mobile terminal device 101. The mobile terminal device 101 includes a measurement unit 401, a measurement data storage unit 403, a determination unit 405, a reception unit 407, a generation unit 409, a storage unit 411, a collation unit 413, and a lighting unit 415. The measurement unit 401 measures posture angles and posture angular velocities. In this example, the elevation angle and the pitch angular velocity are measured at predetermined intervals. The measurement data storage unit 403 stores measurement data. The measurement data storage unit 403 uses a partial area of the NAND memory 313, for example.

  FIG. 5 shows an example of measurement data. The measurement data has a record corresponding to the measurement time. The record includes a measurement value field. In this example, the record includes an elevation angle field and a pitch angular velocity field.

  Returning to the description of FIG. 4, the determination unit 405 determines the movement state of the mobile terminal device 101 based on the speed, acceleration, or position of the mobile terminal device 101. The movement state is divided into, for example, “still”, “walking”, “riding”, and the like. The accepting unit 407 accepts a lighting instruction. The lighting instruction is performed, for example, by pressing a key. The generation unit 409 extracts the transition data of the posture angle and the posture angular velocity that have led to the lighting instruction, and generates a change pattern based on the extracted transition data of the posture angle and the posture angular velocity. The storage unit 411 stores transition data and change patterns. The storage unit 411 uses a partial area of the NAND memory 313, for example.

  FIG. 6 shows a state in which transition data is stored in the storage unit 411. The transition data includes the measurement value of each time. In this example, each elevation angle and pitch angular velocity are included. Measurement values after the lighting instruction is accepted are invalid. The Nth time in this figure corresponds to the maximum time.

  The transition data also includes information indicating the movement state at the time of measurement.

  The transition data also includes identification information of the group to which the transition data belongs. Similar transition data measured in the same moving state belong to the same group.

  For example, the first transition data includes the first elevation angle θ1 (1) to the Nth elevation angle θ1 (N). The first transition data includes from the first pitch angular velocity ω1 (1) to the Nth pitch angular velocity ω1 (N). Further, the first transition data is measured during “walking” and indicates that it belongs to “first group”.

  Similarly, the second transition data includes the first elevation angle θ2 (1) to the Nth elevation angle θ2 (N). The second transition data includes the first pitch angular velocity ω2 (1) to the Nth pitch angular velocity ω2 (N). Furthermore, the second transition data is measured as “in boarding” and indicates that the vehicle does not belong to the group. “Single” means not belonging to a group.

  For example, the third transition data includes the first elevation angle θ3 (1) to the Nth elevation angle θ3 (N). The third transition data includes from the first pitch angular velocity ω3 (1) to the Nth pitch angular velocity ω3 (N). Further, the third transition data is measured as “still” and indicates that it belongs to the “second group”.

  For example, the Mth transition data includes from the first elevation angle θM (1) to the Nth elevation angle θM (N). The Mth transition data includes from the first pitch angular velocity ωM (1) to the Nth pitch angular velocity ω3 (N). Further, the Mth transition data is measured during “walking” and indicates that it belongs to “first group”.

  Next, the change pattern will be described. FIG. 7 shows how the change pattern is stored in the storage unit 411. The change pattern indicates a transition that is a standard of the group. The change pattern is generated based on transition data belonging to the same group.

  The change pattern includes a standard value for each time. In this example, the standard value is an average value in the same measured value group. The change pattern also includes information indicating the movement state. The movement state in the change pattern is the same as the movement state of the transition data belonging to the underlying group.

  For example, the first change pattern includes a standard elevation angle θS1 (1) obtained from the first measurement value group to a standard elevation angle θS1 (N) obtained from the Nth measurement value group. Further, the first change pattern includes the standard pitch angular velocity ωS1 (1) obtained from the first measurement value group to the standard pitch angular velocity ωS1 (N) obtained from the Nth measurement value group. Further, the first change pattern indicates that the first change pattern is generated on the basis of a group of transition data measured during “walking”.

  Similarly, the second change pattern includes the standard elevation angle θS2 (1) obtained from the second measurement value group to the standard elevation angle θS2 (N) obtained from the Nth measurement value group. Further, the second change pattern includes the standard pitch angular velocity ωS2 (1) obtained from the first measurement value group to the standard pitch angular velocity ωS2 (N) obtained from the Nth measurement value group. Furthermore, the second change pattern indicates that the pattern is generated on the basis of a group of transition data measured during “still”. This is the end of the description of the change pattern.

  Returning to the description of FIG. 4, the collation unit 413 collates the transition of the measured value measured during operation with the change pattern. The lighting unit 415 turns on the display device. For example, the lighting unit 415 lights a backlight included in the display device.

  The measurement unit 401, the measurement data storage unit 403, the determination unit 405, the reception unit 407, the generation unit 409, the storage unit 411, the collation unit 413, and the lighting unit 415 are realized by, for example, the hardware resources illustrated in FIG. In addition, the measurement unit 401, the determination unit 405, the reception unit 407, the generation unit 409, the verification unit 413, and the lighting unit 415 sequentially execute part or all of the processing of the module by the application CPU 317 with the program loaded in the RAM 303. You may make it implement | achieve by doing. Alternatively, the sub processor 333 may sequentially execute part or all of the program. This is the end of the description of the module configuration of the mobile terminal device 101.

  The mobile terminal device 101 according to the present embodiment performs learning processing and operation processing separately. In the learning process, when there is a lighting instruction from the user, transition data is extracted and a change pattern is generated. In the operation process, the display device is automatically turned on when it matches the change pattern.

  First, the learning process will be described. The learning process is started in the power saving mode in which the display device is turned off. FIG. 8 shows an example of the learning process flow. The measurement unit 401 waits for measurement timing (S801). Measurement is performed at predetermined intervals. For example, measurement is performed at intervals of 10 msec.

  When the measurement timing is reached, the measurement unit 401 performs measurement processing (S803). The measurement unit 401 measures the posture angle and the posture angular velocity using a built-in sensor. For example, the measurement unit 401 uses the geomagnetic sensor 335 or the gyro sensor 337 to measure the posture angle and the posture angular velocity. In this example, the measurement unit 401 measures the elevation angle and the pitch angular velocity.

  The measurement unit 401 further measures acceleration using the acceleration sensor 339 or measures a position using the GPS device 321. The acceleration or position is used for determining the movement state.

  Then, the measurement unit 401 accumulates the measured data in the measurement data storage unit 403.

  When the measurement process is finished, the determination unit 405 performs a movement state determination process (S805). The determination unit 405 calculates the moving speed of the mobile terminal device 101 based on the acceleration or position accumulated in the measurement data storage unit 403. Then, the determination unit 405 determines the moving state of the mobile terminal device 101 based on the moving speed. In this example, the movement states are classified into one of “moving still”, “walking”, and “riding” in ascending order of movement speed.

  The determination unit 405 determines whether an opportunity has occurred (S807). The determination unit 405 determines that an opportunity has occurred, for example, when the measured angular velocity exceeds a predetermined reference value. Alternatively, the determination unit 405 determines that an opportunity has occurred, for example, when the measured acceleration exceeds a predetermined reference value.

  If it is determined that no trigger has occurred, the process returns to S801.

  If it is determined that an opportunity has occurred, the determination unit 405 determines whether a lighting instruction has been received (S809). When it is determined that the lighting instruction has not been received, the determination unit 405 determines whether or not the number of times of measurement since the trigger has occurred exceeds the maximum number (S811). The maximum number of times corresponds to the number of times of measurement in the longest change pattern. If it is determined that the number of times of measurement after the trigger has occurred exceeds the maximum number of times, no change pattern is generated. Therefore, the process returns to S801.

  If it is determined that the number of times of measurement since the occurrence of the trigger does not exceed the maximum number of times, the measuring unit 401 waits for timing as in S801 (S813). The measurement unit 401 performs measurement processing in the same manner as S803 (S815). The determination unit 405 performs a movement state determination process as in S805 (S817). Then, the process returns to S809.

  If it is determined in S809 that a lighting instruction has been received, the lighting unit 415 turns on the display device (S819). Further, the generation unit 409 performs a generation process (S821).

  FIG. 9 shows an example of the generation process flow. The generation unit 409 extracts a measurement value group from the trigger to the lighting instruction. In this example, the generation unit 409 extracts the transition posture angle and posture angular velocity from the measurement data storage unit 403. Further, the generation unit 409 secures an area for new transition data in the storage unit 411 as illustrated in FIG. 6, and sets the extracted measurement value group in the area (S901).

  Subsequently, the operation proceeds to search for similar transition data. The generation unit 409 selects transition data having the same movement state (S903). The selected transition data is a comparison target. At this time, the generation unit 409 selects transition data so as not to overlap with the transition data that has already been compared. For example, the generation unit 409 identifies transition data having the same movement state according to the arrangement order illustrated in FIG.

  The generation unit 409 performs similarity determination processing (S905). By the similarity determination process, the generation unit 409 determines whether the new transition data and the comparison target transition data are similar.

  FIG. 10 shows an example of the similarity determination process flow. The generation unit 409 selects one measurement value type for which the following processing is not performed (S1001). In this example, the generation unit 409 selects the elevation angle and the pitch angular velocity in this order.

  The generation unit 409 calculates the difference for each time for the measurement value of the selected type (S1003). At this time, the generation unit 409 first calculates the difference between the first measured value in the new transition data and the first measured value in the transition data to be compared. Next, the generation unit 409 calculates a difference between the second measurement value in the new transition data and the second measurement value in the transition data to be compared. Similarly, the difference between the same number of measurement values is calculated in the same manner.

  Next, the generation unit 409 determines the similarity of each time (S1005). For example, if the difference does not exceed a predetermined threshold, the generation unit 409 determines that they are similar. If the difference exceeds the predetermined threshold, the generation unit 409 determines that they are not similar. The generation unit 409 performs such determination for each difference.

  Next, the generation unit 409 calculates a similarity rate (S1007). Specifically, the generation unit 409 obtains the similarity rate by dividing the number of times of similarity by the number of times of measurement.

  The generation unit 409 determines whether or not the similarity rate exceeds a predetermined threshold (S1009). If it is determined that the similarity rate exceeds a predetermined threshold, the generation unit 409 determines whether there is an unprocessed measurement value type (S1011). If it is determined that there is an unprocessed measurement value type, the generation unit 409 returns to S1001 and repeats the same processing for the next measurement value type.

  On the other hand, if it is determined in S1011 that there is no unprocessed measurement value type, since the similarity rate has exceeded a predetermined threshold value in all measurement value types, the generation unit 409 compares the new transition data with the comparison target. Is determined to be “similar” (S1013).

  If it is determined in step S1009 that the similarity rate does not exceed the predetermined threshold value, the similarity unit does not exceed the predetermined threshold value for any of the measurement value types, so the generation unit 409 generates new transition data. It is determined that the transition data to be compared is “dissimilar” (S1015).

  Returning to the description of the generation process flow shown in FIG. 9, the generation unit 409 branches the process depending on whether the determination result is “similar” or “dissimilar” (S907).

  When the determination result is “similar”, the generation unit 409 identifies identification information of the group of the transition data to be compared (S909). The generation unit 409 sets the identification information of the identified group as new transition data (S911). If the transition data to be compared is “single” and does not belong to any group, the generation unit 409 provides a new group and sets the new group identification information as new transition data. . The generation unit 409 further sets new group identification information in the transition data to be compared.

  The generation unit 409 determines whether or not the number of generated transition data belonging to the group has reached the reference number (S913). If it is determined that the number of generated transition data belonging to the group has reached the reference number, the generation unit 409 sets a change pattern (S915). Specifically, the generation unit 409 obtains a standard value for each time. At this time, the generation unit 409 collects the same measurement value from the transition data belonging to the group. Then, the generation unit 409 calculates a statistical representative value of the collected measurement values. In this example, the generation unit 409 calculates an average value. The statistical representative value may be a median value, for example. Furthermore, the generation unit 409 identifies the movement state of the transition data belonging to the group, and includes the identified movement state in the change pattern. When the change pattern is set, the generation unit 409 finishes the generation process.

  If it is determined in S913 that the number of transition data belonging to the group has not reached the reference number, the generation unit 409 ends the generation process.

  Returning to the description of S907, if the determination result is “dissimilar”, the generation unit 409 determines whether there is unprocessed transition data (S917). If it is determined that there is no unprocessed transition data, the new transition data is not similar to any transition data, and therefore the generation unit 409 sets “single” in the group item (S919).

  If it is determined that there is unprocessed transition data, the process returns to S903 and the above process is repeated.

  When the generation process is finished, the learning process flow shown in FIG. 8 is also finished. This is the end of the description of the learning process.

  Subsequently, the operation process will be described. The operation process is started in the power saving mode in which the display device is turned off. FIG. 11 shows an example of the operation processing flow. The measurement unit 401 waits for measurement timing (S1101). Similar to the processing in S801, measurement is performed at predetermined intervals. For example, measurement is performed at intervals of 10 msec.

  When the measurement timing is reached, the measurement unit 401 performs measurement processing (S1103). Similar to the processing of S803, the measurement unit 401 measures the posture angle and the posture angular velocity using a built-in sensor. For example, the measurement unit 401 uses the geomagnetic sensor 335 or the gyro sensor 337 to measure the posture angle and the posture angular velocity. In this example, the measurement unit 401 measures the elevation angle and the pitch angular velocity.

  The measurement unit 401 further measures acceleration using the acceleration sensor 339 or measures a position using the GPS device 321. The acceleration or position is used for determining the movement state.

  Then, the measurement unit 401 accumulates the measured data in the measurement data storage unit 403.

  When the measurement process is finished, the determination unit 405 performs a movement state determination process (S1105). Similar to the processing of S805, the determination unit 405 calculates the moving speed of the mobile terminal device 101 based on the acceleration or the position accumulated in the measurement data storage unit 403. Then, the determination unit 405 determines the moving state of the mobile terminal device 101 based on the moving speed. In this example, the movement states are classified into one of “moving still”, “walking”, and “riding” in ascending order of movement speed.

  The determination unit 405 determines whether an opportunity has occurred (S1107). Similarly to S807, the determination unit 405 determines that an opportunity has occurred, for example, when the measured angular velocity exceeds a predetermined reference value. Alternatively, the determination unit 405 determines that an opportunity has occurred, for example, when the measured acceleration exceeds a predetermined reference value.

  If it is determined that no trigger has occurred, the mobile terminal device 101 returns to the processing of S1101.

  The determination unit 405 determines whether or not the number of times of measurement after the occurrence of the trigger has reached the number of times of start of collation (S1109). In this example, when the number of times of measurement after the occurrence of the trigger is less than the predetermined number, the verification is not yet performed. For this reason, when it is determined that the number of times of measurement after the occurrence of the trigger has not reached the number of times of start of collation, the measuring unit 401 waits for timing in the same manner as in S1101 (S1111). The measurement unit 401 performs measurement processing in the same manner as S1103 (S1113). The determination unit 405 performs a movement state determination process similarly to S1105 (S1115). Then, the process returns to S1109.

  In the process of S1109, when it is determined that the number of times of measurement since the trigger has occurred reaches the number of times of start of collation, the collation unit 413 performs collation processing (S1117).

  FIG. 12 shows an example of the verification processing flow. The collation unit 413 identifies the measurement value group from the trigger to this time (S1201). In this example, the collation unit 413 specifies the elevation angle and the pitch angular velocity that transition from the measurement data storage unit 403.

  Subsequently, the operation proceeds to search for a similar change pattern. The collation unit 413 selects a change pattern whose movement state matches (S1203). The selected change pattern is a verification target. At this time, the collation unit 413 selects a change pattern so as not to overlap with a change pattern that has already been collated. The collation unit 413 identifies a change pattern whose movement state matches in accordance with the arrangement order shown in FIG. 7, for example.

  The collation unit 413 selects one measurement value type for which the following processing is not performed (S1205). In this example, the collation unit 413 selects the elevation angle and the pitch angular velocity in this order.

  The collation unit 413 calculates the difference for each time for the measurement value of the selected type (S1207). At this time, the collation unit 413 first calculates the difference between the first measurement value in the new transition data and the first standard value in the change pattern to be collated. Next, the collation unit 413 calculates a difference between the second measurement value in the new transition data and the second standard value in the change pattern to be collated. Similarly, the difference between the measured value and the standard value of the same number of times is calculated.

  Next, the collation unit 413 determines the similarity of each time (S1209). For example, when the difference does not exceed a predetermined threshold, the collation unit 413 determines that they are similar. If the difference exceeds a predetermined threshold, the collation unit 413 determines that they are not similar. The collation unit 413 performs such determination for each difference.

  Next, the collation unit 413 calculates a similarity rate (S1211). Specifically, the collation unit 413 obtains the similarity rate by dividing the number of times of similarity by the number of times of measurement.

  The collation unit 413 determines whether or not the similarity rate exceeds the conformance threshold (S1213). If it is determined that the similarity rate has exceeded the conformance threshold, the collation unit 413 determines whether there is an unprocessed measurement value type (S1215). If it is determined that there is an unprocessed measurement value type, the collation unit 413 returns to S1205 and repeats the same process for the next measurement value.

  If it is determined in S1215 that there is no unprocessed measurement value type, the similarity rate has exceeded the conformance threshold in all measurement value types, and the collation unit 413 determines “compatibility”. (S1217).

  If it is determined in step S1213 that the similarity rate does not exceed the matching threshold value, the similarity rate does not exceed the matching threshold value for any of the measurement value types. At least it does not match the change pattern. Therefore, the collation unit 413 determines whether there is an unprocessed change pattern (S1219). If it is determined that there is an unprocessed change pattern, the collation unit 413 returns to the process of S1203 and repeats the above process. .

  If it is determined in step S1219 that there is no unprocessed change pattern, the collation unit 413 determines whether any of the similarity ratios calculated in step S1211 has exceeded the hold threshold (S1221). . The hold threshold is a value lower than the match threshold. If it is determined that any of the similarity ratios calculated in S1211 has exceeded the hold threshold, the collation unit 413 determines “hold” (S1223). When the collation result is “pending”, the operation process is continued as described later.

  On the other hand, when it is determined that none of the similarity ratios calculated in S1211 so far exceeds the hold threshold, the collation unit 413 determines “nonconformity” (S1225). When the determination is finished, the matching unit 413 finishes the matching process.

  Returning to the description of the operation processing flow shown in FIG. When the collation process of S1117 is finished, the flow of the process is divided depending on the collation result. Therefore, the determination unit 405 determines whether or not the collation result is “nonconforming” (S1119). If it is determined that the collation result is “non-conforming”, it is not the case that should be lit, and the process returns to S1101.

  On the other hand, when it is determined that the collation result is not “non-conformity”, the determination unit 405 determines whether the collation result is “conformity” or “hold” (S1121). When it determines with the collation result by the collation part 413 being "conformity", the lighting part 415 lights a display apparatus (S1123).

  If it is determined that the collation result by the collation unit 413 is “pending”, the determination unit 405 determines whether or not the number of measurement reaches the maximum number (S1125). If it is determined that the number of measurements has not reached the maximum number, the process proceeds to S1111 and the operation process is continued.

  If it is determined in S1125 that the number of times of measurement has reached the maximum number, the result of collation has not finally been “conforming”, so the process returns to S1101 without turning on the light. This is the end of the description of the processing in operation.

  According to the present embodiment, since the use of lighting is estimated according to how the mobile terminal device 101 is handled when the user gives a lighting instruction, wasteful power consumption due to automatic lighting that does not conform to the user's intention can be reduced. The

  Moreover, since the use of lighting is estimated according to the movement state, unnecessary automatic lighting can be reduced according to the movement state of the user. For example, in the case of a user who customarily differs in the behavior of taking out and handling the mobile terminal device 101 during “walking” and the behavior of taking out and handling the mobile terminal device 101 during “riding”, “walking” and “riding” If the change patterns are distinguished, there is no case where the “in-walking” operation is erroneously determined to be “riding” and the light automatically turns on, and the “in-ride” operation is erroneously determined to be “walking” and the case is automatically turned on.

  Furthermore, the troublesome operation of performing the lighting instruction can be eliminated.

  In addition, it is possible to infer the lighting depending on how to handle the user.

[Embodiment 2]
In the above-described embodiment, an example in which a learning process and an operation process are provided has been described, but in this embodiment, an example in which learning and an operation are performed using a common process will be described.

  The common process is activated in the power saving mode in which the display device is turned off. FIG. 13 shows an example of a common processing flow. The measurement unit 401 waits for timing (S1301). This process corresponds to the process of S801 in the learning process shown in FIG. 8 and the process of S1101 in the operation process shown in FIG.

  Next, the measurement unit 401 performs measurement processing (S1303). This process corresponds to the process of S803 in the learning process shown in FIG. 8 and the process of S1103 in the operation process shown in FIG.

  Subsequently, the determination unit 405 performs a movement state determination process (S1305). This process corresponds to the process of S805 in the learning process shown in FIG. 8 and the process of S1105 in the operation process shown in FIG.

  The determination unit 405 determines whether an opportunity has occurred (S1307). This process corresponds to the process of S807 in the learning process shown in FIG. 8 and the process of S1107 in the operation process shown in FIG.

  If it is determined that no trigger has occurred, neither the generation process nor the collation process is performed, and the process returns to S1301.

  If it is determined that an opportunity has occurred, the determination unit 405 determines whether a lighting instruction has been received (S1309). This process corresponds to the process of S809 in the learning process shown in FIG.

  If it is determined that the lighting instruction has been received, the lighting unit 415 turns on the display device (S1311), and the generation unit 409 performs a generation process (S1313). These processes correspond to the processes of S819 and S821 in the learning process shown in FIG. The generation process is as described above with reference to FIG.

  If it is determined that the lighting instruction has not been received, the determination unit 405 determines whether or not the number of collation starts has been reached (S1315). This process corresponds to S1109 in the operation process shown in FIG.

  If it is determined that the number of collation start times has not been reached, the measurement unit 401 waits for timing (S1317) and performs measurement processing (S1319). Further, the determination unit 405 performs a movement state determination process (S1321). The process of S1317 corresponds to the process of S813 in the learning process shown in FIG. 8 and the process of S1111 in the operation process shown in FIG. The process of S1319 corresponds to the process of S815 in the learning process shown in FIG. 8 and the process of S1113 in the operation process shown in FIG. The process of S1321 corresponds to the process of S817 in the learning process shown in FIG. 8 and the process of S1115 in the operation process shown in FIG.

  If it is determined that the number of collation starts has been reached, the collation unit 413 performs collation processing (S1323). This process corresponds to the process of S1117 in the operation process shown in FIG. The collation process is as described above with reference to FIG.

  The determination unit 405 determines whether or not the collation result is “adapted” (S1325). This process corresponds to the process of S1121 in the operation process shown in FIG.

  When it is determined that the collation result is “adapted”, the lighting unit 415 turns on the display device (S1327). Then, the common process ends.

  When the determination unit 405 determines that the collation result is not “adapted”, that is, the collation result is “hold” or “non-conformity”, the determination unit 405 determines whether the number of measurement reaches the maximum number. Is determined (S1329). This process corresponds to the process of S1125 in the operation process shown in FIG. If it is determined that the number of times of measurement has not reached the maximum number, the generation process may be performed thereafter, and thus the process proceeds to S1317.

  If it is determined that the number of times of measurement has reached the maximum number, neither generation processing nor collation processing is performed, and the process returns to S1301.

  According to the present embodiment, the learning process and the operation process are executed at the same time without being distinguished, so that a change pattern can be generated even during operation.

  Although one embodiment of the present technology has been described above, the present technology is not limited to this. For example, the functional block configuration described above may not match the actual program module configuration.

  Further, the configuration of each storage area described above is an example, and the above configuration is not necessarily required. Further, in the processing flow, the processing order can be changed if the processing result does not change. Further, it may be executed in parallel.

  The embodiment described above is summarized as follows.

  The mobile terminal device according to one aspect includes a generation unit that generates a change pattern of its posture angle or posture angular velocity indicating a transition to reception of a lighting instruction, and a transition of a measurement value of the posture angle or posture angular velocity is collated with the change pattern. And a lighting unit for lighting the display device based on the result of the matching.

  In this way, since the use of lighting is estimated according to how the mobile terminal device is handled when the user gives a lighting instruction, useless power consumption due to automatic lighting that does not conform to the user's intention can be reduced.

  Furthermore, the generation unit may associate the change pattern with its own movement state when the lighting instruction is received. The collation unit may collate the transition of the measurement value with a change pattern corresponding to the current movement state.

  In this way, since the use of lighting is estimated according to the moving state, unnecessary automatic lighting can be reduced according to the user situation.

  A program for causing the processor to perform the above processing can be created. The program is, for example, a computer-readable storage medium or storage device such as a flexible disk, a CD-ROM, a magneto-optical disk, a semiconductor memory, or a hard disk. You may make it store in. Note that intermediate processing results are generally temporarily stored in a storage device such as a main memory.

  The following supplementary notes are further disclosed with respect to the embodiments including the above examples.

(Appendix 1)
A generation unit that generates a change pattern of its own posture angle or posture angular velocity indicating a transition to reception of a lighting instruction;
A collation unit for collating a transition of a measurement value of the posture angle or the posture angular velocity with the change pattern;
A portable terminal device comprising: a lighting unit that lights the display device based on the result of the collation.

(Appendix 2)
Furthermore,
The generating unit associates the change pattern with its own movement state when the lighting instruction is received,
The portable terminal device according to claim 1, wherein the collation unit collates the transition of the measurement value with the change pattern corresponding to the current movement state.

(Appendix 3)
A control method executed by a mobile terminal device,
Processing for generating a change pattern of the posture angle or posture angular velocity of the mobile terminal device indicating a transition leading to reception of a lighting instruction;
A process of checking a transition of a measured value for the posture angle or the posture angular velocity with the change pattern;
A control method including: lighting a display device based on a result of collation.

(Appendix 4)
In the processor included in the mobile terminal device,
Processing for generating a change pattern of the posture angle or posture angular velocity of the mobile terminal device indicating a transition leading to reception of a lighting instruction;
A process of checking a transition of a measured value for the posture angle or the posture angular velocity with the change pattern;
A program for executing a process of turning on the display device based on the collation result.

101 Mobile terminal device 303 RAM
305 Speaker 307 LCD
309 Touch panel 311 Microphone 313 NAND memory 315 Communication CPU
317 Application CPU 319 Short-range communication device 321 GPS device 323 Wireless LAN device 325 DSP 327 ISP
329 Camera 331 Bus 333 Sub-processor 335 Geomagnetic sensor 337 Gyro sensor 339 Acceleration sensor 401 Measuring unit 403 Measurement data storage unit 405 Judgment unit 407 Reception unit 409 Generation unit 411 Storage unit 413 Verification unit 415 Lighting unit

Claims (3)

Lighting generates its own attitude angle or posture angular velocity change pattern indicating the transition leading to the acceptance of an instruction, a generating unit that associates the change pattern, in its moving state of the time of receiving the lighting indication,
A collation unit for collating the transition of the measurement value for the posture angle or the posture angular velocity with the change pattern corresponding to the current movement state ;
A portable terminal device comprising: a lighting unit that lights the display device based on the result of the collation. A control method executed by a mobile terminal device,
Wherein indicating the transition leading to the acceptance of lighting instruction to generate an attitude angle or posture angular velocity change pattern of the portable terminal device, the change pattern, Ru correspondence to the moving state of the mobile terminal device upon receiving the lighting indication Processing,
A process of checking the transition of the measurement value for the posture angle or the posture angular velocity with the change pattern corresponding to the current movement state of the mobile terminal device ;
A control method including: lighting a display device based on a result of collation. In the processor included in the mobile terminal device,
Wherein indicating the transition leading to the acceptance of lighting instruction to generate an attitude angle or posture angular velocity change pattern of the portable terminal device, the change pattern, Ru correspondence to the moving state of the mobile terminal device upon receiving the lighting indication Processing,
A process of checking the transition of the measurement value for the posture angle or the posture angular velocity with the change pattern corresponding to the current movement state of the mobile terminal device ;
A program for executing a process of turning on the display device based on the collation result.

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