JP2014174736A - Electronic apparatus and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accept an input of only a combination of accurate input values.SOLUTION: An input switch 107 receives a set of a travelling pitch as the number of steps per a predetermined time and a travelling speed as a running speed or walking speed. A processing section 101 calculates the stride on the basis of the set of the travelling pitch and the travelling speed input to the input switch 107. A storage section 103 stores an upper limit threshold indicating the upper limit of the stride and a lower limit threshold indicating the lower limit of the stride. On the basis of the calculated stride and the upper limit threshold and lower limit threshold stored in the storage section 103, the processing section 101 determines whether or not to accept the input of the set of the travelling pitch and the travelling speed input to the input switch 107.

Description

  The present invention relates to an electronic device and a program.

  2. Description of the Related Art Conventionally, there has been known a device in which an acceleration sensor or the like is mounted on a portable electronic device and a speed of a user traveling or walking is calculated (see, for example, Patent Document 1). Such a device includes a time measuring means and a step count measuring means, and calculates and notifies the average speed of the user based on the set step length, the measured time and the number of steps.

  However, in the technique described in Patent Document 1, it is necessary to input a user's unique stride value in advance. Since the user cannot input his / her own stride value unless he / she recognizes his / her stride value, the user is forced to recognize his / her stride value by some method.

  For example, the stride can be calculated by dividing the speed (m / min) by the pitch (steps / min). Therefore, the portable electronic device can calculate the stride value by receiving the input of the walking speed and the walking pitch from the user.

Japanese Utility Model Publication No. 2-59419

  However, there is a problem that the calculated stride becomes an unrealistic value even when a realistic speed alone and a realistic pitch alone are input. For example, a speed of 300 m / min is a realistic speed. Also, a pitch of 60 steps / minute is a realistic pitch. However, the stride calculated based on this value is 5 m, which is not a realistic stride. That is, the combination of the input speed and pitch is not accurate. Thus, there exists a problem that there exists a possibility that the input of the combination of an incorrect input value may be received.

  Therefore, the present invention has been made in view of the above-described circumstances, and an object thereof is to provide an electronic device and a program that can accept only a combination of more accurate input values.

  The present invention provides an input unit to which a set of a traveling pitch that is the number of steps per predetermined time and a traveling speed that is a traveling speed or a walking speed is input, and the traveling pitch and the traveling speed that are input to the input unit A calculation unit that calculates a stride based on a set of, a storage unit that stores an upper limit threshold that indicates an upper limit value of the stride and a lower limit threshold that indicates a lower limit value of the stride, the stride calculated by the calculation unit, A determination unit that determines whether to accept an input of a set of the travel pitch and the travel speed input to the input unit based on the upper limit threshold and the lower limit threshold stored in the storage unit; It is an electronic device characterized by

  The present invention also relates to a set of a relationship data storage unit that stores relationship data indicating a relationship between the travel pitch and the travel speed, and the travel pitch and the travel speed that the determination unit determines to accept input. Based on the measured travel pitch of the user based on the relationship data stored in the relationship data storage unit, a correction unit that corrects the relationship data stored in the storage unit based on the travel speed of the user An electronic device comprising: a speed calculation unit that calculates

  According to another aspect of the present invention, there is provided a generating unit that generates relational data indicating a relationship between the traveling pitch and the traveling speed based on a plurality of sets of the traveling pitch and the traveling speed that are determined to be received by the determination unit. The travel speed of the user is calculated from the measured travel pitch of the user on the basis of the relation data storage section that stores the relation data generated by the generation section and the relation data stored in the relation data storage section. An electronic device comprising a speed calculating unit.

  According to another aspect of the present invention, there is provided an electronic apparatus including a travel distance calculation unit that calculates a travel distance that is a distance traveled by the user or a distance traveled based on the travel speed calculated by the speed calculation unit. is there.

  In addition, the present invention is an electronic apparatus comprising a pace calculation unit that calculates a travel pace that is the pace of the user walking or the pace of travel based on the travel speed calculated by the speed calculation unit. .

  In the electronic device of the present invention, the storage unit stores table data indicating a relationship between a traveling pitch and a traveling speed.

  In the electronic device of the present invention, the speed calculation unit calculates a travel pace that is a pace at which the user walks or travels instead of the travel speed of the user.

  According to another aspect of the present invention, there is provided a calculation step of calculating a stride based on a combination of a travel pitch, which is the number of steps per predetermined time, and a travel speed, which is a travel speed, or a walk speed, which is input to a computer; Based on the stride calculated in step, the upper limit threshold indicating the upper limit of the stride stored in the storage unit, and the lower limit threshold indicating the lower limit of the stride, a set of the input travel pitch and travel speed And a determination step for determining whether to accept an input.

  According to the present invention, a set of a traveling pitch that is the number of steps per predetermined time and a traveling speed that is a traveling speed or a walking speed is input to the input unit. The calculation unit calculates the stride based on the set of the travel pitch and the travel speed input to the input unit. Further, the storage unit stores an upper limit threshold value indicating the upper limit value of the stride and a lower limit threshold value indicating the lower limit value of the stride. Whether or not the determination unit accepts an input of a set of the travel pitch and the travel speed input to the input unit based on the stride calculated by the calculation unit and the upper and lower thresholds stored in the storage unit. Determine. Thereby, only a more accurate combination of input values can be accepted.

It is the block diagram which showed the structure of the wristwatch in the 1st Embodiment of this invention. It is plot data which shows the relationship between the driving pitch and driving speed in the 1st Embodiment of this invention. It is an example of the relationship data which shows the relationship between driving | running | working pitch and driving speed which the memory | storage part in the 1st Embodiment of this invention memorize | stores. It is a figure for demonstrating the correction method of the relational expression in the 1st Embodiment of this invention. It is the flowchart which showed the process sequence of the relational expression correction | amendment process which the wristwatch in the 1st Embodiment of this invention performs. It is the flowchart which showed the process sequence of the speed calculation process which the wristwatch in the 1st Embodiment of this invention performs. It is an example of the relationship data which shows the relationship between driving | running | working pitch and driving speed which the memory | storage part in the 2nd Embodiment of this invention memorize | stores. It is a figure for demonstrating the production | generation method of the relational expression in the 2nd Embodiment of this invention. It is the flowchart which showed the process sequence of the relational expression production | generation process which the wristwatch in the 2nd Embodiment of this invention performs.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In this embodiment, an example of a wristwatch will be described as an example of an electronic device. FIG. 1 is a block diagram illustrating a configuration of a wristwatch 100 according to the present embodiment. The wristwatch 100 is an electronic timepiece that measures a user's travel pitch and calculates and displays the user's travel speed from the measured travel pitch. The traveling pitch is the number of steps per predetermined time (for example, 1 minute). The traveling speed is a walking speed or a traveling speed. The wristwatch 100 has two operation modes: a measurement (chronograph) mode for measuring a running pitch, and a setup mode for changing settings of the wristwatch 100. In the illustrated example, the wristwatch 100 includes a processing unit 101 (speed calculation unit, acquisition unit, correction unit, travel distance calculation unit, pace calculation unit), display unit 102, storage unit 103, power supply 104, and travel detection. Unit 105, acceleration sensor 106, input switch 107 (acquisition unit), frequency dividing unit 108, and crystal oscillation unit 109.

  The processing unit 101 is a central processing unit that controls each unit included in the wristwatch 100. For example, the processing unit 101 calculates the stride based on the set of the travel pitch and the travel speed input to the input switch 107. Further, based on the relational data indicating the relation between the traveling pitch and the traveling speed stored in the storage unit 103, the traveling speed of the user is calculated from the traveling pitch of the user measured by the traveling detection unit 105. Further, the processing unit 101 corrects the relational data stored in the storage unit 103 based on the set of the actual traveling pitch and the actual speed measured at the time of the pitch measurement. Further, the processing unit 101 calculates the user's travel distance based on the calculated travel speed. The travel distance is a walked distance or a traveled distance. Further, the processing unit 101 calculates a travel pace based on the calculated travel speed. The running pace is the pace of running or walking, and is the reciprocal of the running speed. In addition, the processing unit 101 causes the display unit 102 to display information related to traveling. The information related to travel is, for example, travel time, number of steps, travel pitch, travel speed, travel distance, travel pace, or the like. The running time is the time spent walking or running.

  The display unit 102 is, for example, a liquid crystal display, and displays time, information related to traveling, and the like. The storage unit 103 includes a ROM (Read Only Memory) 105 and a RAM (Random Access Memory) 106, and stores relational data indicating the relation between the running pitch and the running speed. The storage unit 103 also stores an upper limit threshold value that indicates the upper limit value of the actual stride and a lower limit threshold value that indicates the lower limit value of the actual stride. For example, the storage unit 103 stores an upper limit threshold value 200 cm indicating the upper limit value of the actual stride and a lower limit threshold value 50 cm indicating the lower limit value of the actual stride length.

  The upper limit threshold value indicating the upper limit value of the actual stride stored in the storage unit 103 and the lower limit threshold value indicating the lower limit value of the actual stride length may be arbitrarily set by the user. The value may be changed according to the setting. For example, when the “walking mode” used when the user walks is set as the setting of the wristwatch 100, the upper limit threshold value indicating the upper limit value of the actual stride stored in the storage unit 103 is set to 100 cm, The lower limit threshold value indicating the lower limit value of the stride may be set to 50 cm. Further, when “travel mode” used by the user during travel is set as the setting of the wristwatch 100, the upper limit threshold value indicating the upper limit value of the actual stride stored in the storage unit 103 is set to 200 cm. The lower limit threshold value indicating the lower limit value of the stride may be set to 50 cm. The setting of the wristwatch 100 is not limited to the “running mode” or the “walking mode”, but “user age” or “user gender” may be used. Further, the upper limit threshold value indicating the upper limit value of the actual stride stored in the storage unit 103 and the lower limit value of the actual stride length are stored in accordance with the “user age” and “user gender” which are the settings of the wristwatch 100. The lower threshold value shown may be changed. Note that the values of the upper limit threshold and the lower limit threshold are not limited to the above example, and may be any values as long as they can indicate a realistic stride.

  The power source 104 supplies power to each unit included in the wristwatch 100. The acceleration sensor 106 detects acceleration. The traveling detection unit 105 measures the traveling pitch of the user based on the acceleration detected by the acceleration sensor 106. For example, the travel detection unit 105 measures the travel pitch of the user based on acceleration (information related to landing) based on body movement related to travel or walking. Specifically, the traveling detection unit 105 detects the vibration of the body during traveling or walking from the acceleration detected by the acceleration sensor 106 and measures the number of steps. Then, the traveling detection unit 105 measures the traveling pitch based on the measured traveling time and the measured number of steps.

  The input switch 107 is configured by a switch that can be operated from the outside, and is an input unit that receives an input. For example, the input switch 107 accepts an input of a set of a user's actual traveling pitch and actual traveling speed. The traveling speed is a walking speed or a traveling speed, for example, a traveling speed or a traveling pace. The input switch 107 accepts an input of the user's gender. The crystal oscillation unit 109 outputs a signal having a predetermined frequency. The frequency divider 108 divides the output signal of the crystal oscillating unit 109 by a predetermined frequency dividing ratio and outputs a reference clock signal for the processing unit 101 and a clock signal for timing. The processing unit 101, the frequency dividing unit 108, and the crystal oscillation unit 109 are time measuring units that measure time. The timekeeping unit implements a stopwatch function that measures the user's travel time and a clock function that measures the current time.

  FIG. 2 is plot data showing the relationship between the running pitch and the running speed. From the plot data 201 of the running pitch and the running speed shown in this figure, it was found that there was a correlation between the running pitch and the running speed. For example, in general, when a person is walking or running, the running pitch is high when running fast (or walking), and the running pitch is low when running slowly (or walking). Tend. For this reason, the traveling speed can be derived from the traveling pitch by preparing a predetermined relational expression in advance. Therefore, the storage unit 103 according to the present embodiment stores relation data indicating the relation between the travel pitch and the travel speed in advance.

Next, relationship data indicating the relationship between the travel pitch and the travel speed stored in the storage unit 103 will be described. FIG. 3 is an example of relationship data indicating the relationship between the travel pitch and the travel speed stored in the storage unit 103 according to the present embodiment. As shown in the figure, the storage unit 103 stores an expression for converting the traveling speed from the traveling pitch (hereinafter referred to as a relational expression) for each of the male and the female. The relational expression is a linear expression “traveling speed V = (slope) × traveling pitch P− (offset)”. In the drawing, the relational expression corresponding to the state “factory shipment state (initial state)” is the relational expression of the initial state stored in the storage unit 103 at the time of factory shipment. In the relational expression in the initial state corresponding to males, the slope is a ₁ and the offset is b ₁ . In the relational expression in the initial state corresponding to the female, the inclination is a ₂ and the offset is b ₂ .

The relational expression corresponding to the state “after data setting by the user” is a corrected relational expression. The processing unit 101 corrects the relational expression in the initial state based on the set of the user's actual traveling pitch and actual traveling speed. FIG. 4 is a diagram for explaining a correction method of the relational expression in the present embodiment. The horizontal axis of the graph shown in this figure is the travel pitch, and the vertical axis is the travel speed. A dotted line 301 shown in the figure is a relational expression in an initial state. In addition, a solid line 302 shown in the drawing is a corrected relational expression. The processing unit 101 changes the offset of the relational expression 301 in the initial state so as to pass through a set (actual travel pitch, actual travel speed) 303 of the actual travel pitch and the actual travel speed. At this time, the processing unit 101 does not change the inclination of the relational expression 301 in the initial state. For example, in the example illustrated in FIG. 3, the processing unit 101 corrects the relational expression by changing the offset of the relational expression in the initial state corresponding to male from b ₁ to the user coefficient b _s1 . Further, the processing unit 101 corrects the relational expression by changing the offset of the relational expression in the initial state corresponding to the female from b ₂ to the user coefficient b _s2 . The corrected relational expression stored in the storage unit 103 can be changed by manual input from the input switch 107.

  A set of the user's actual traveling pitch and actual traveling speed is input to the input switch 107 by the user. This eliminates the need for the user to actually travel when correcting or generating the relational expression. However, even if a pair of a realistic traveling pitch and a realistic traveling speed alone is input, there are cases where the two combinations are unrealistic. For example, a speed of 300 m / min is a realistic speed. Also, a pitch of 60 steps / minute is a realistic pitch. However, the stride calculated based on this value is 5 m, which is not a realistic stride. That is, the combination of the input speed and pitch is not accurate.

  When an unrealistic set of the user's actual traveling pitch and actual traveling speed is input, the corrected relational expression corrected by the processing unit 101 may also be an unrealistic relational expression. . Therefore, in the present embodiment, the processing unit 101 determines whether or not the set of the actual traveling pitch and the actual traveling speed of the user input to the input switch 107 is a realistic value. Is determined to accept input, and otherwise it is determined not to accept input. And the process part 101 correct | amends a relational expression using the group of a user's actual driving | running pitch and the actual driving | running | working speed which determined having received an input.

  Next, a relational expression correction process in which the wristwatch 100 according to the present embodiment corrects a relational expression will be described. FIG. 5 is a flowchart illustrating a processing procedure of the relational expression correction process executed by the wristwatch 100 according to the present embodiment. The wristwatch 100 executes the relational expression correction process in the setup mode. The user inputs data necessary for the relational expression correction process to the input switch 107 in the setup mode.

(Step S101) The processing unit 101 displays gender (male or female) on the display unit 102 so as to be selectable, and accepts a gender selection input. The user selects gender using the input switch 107. Thereafter, the process proceeds to step S102.
(Step S102) The processing unit 101 displays on the display unit 102 a display for accepting an input of a set of the user's actual traveling pitch and actual traveling speed. The user inputs a set of an actual travel pitch and an actual travel speed using the input switch 107. Thereafter, the process proceeds to step S103.
(Step S103) The processing unit 101 calculates the stride based on the set of the actual travel pitch and the actual travel speed input to the input switch 107 in the process of step S102. Thereafter, the process proceeds to step S104. For example, the stride can be calculated by dividing the actual travel speed (m / min) by the actual travel pitch (steps / min).

(Step S104) The processing unit 101 reads an upper limit threshold value indicating the upper limit value of the stride and a lower limit threshold value indicating the lower limit value of the stride stored in the storage unit 103. Thereafter, the process proceeds to step S105.
(Step S105) The processing unit 101 determines whether or not the stride calculated in the process of step S103 is equal to or less than the upper limit threshold read out in the process of step S104. If the processing unit 101 determines that the stride calculated in the process of step S103 is equal to or less than the upper limit threshold read out in the process of step S104 and equal to or greater than the lower limit threshold, the process proceeds to the process of step S107. The process proceeds to S106.

  (Step S106) The processing unit 101 does not accept an input of a set of the actual traveling pitch and the actual traveling speed input to the input switch 107 in the process of Step S102. In addition, the processing unit 101 causes the display unit 102 to display a display indicating that the set of the input actual traveling pitch and actual traveling speed is an unreal value and does not accept the input. Thereafter, the process returns to step S102.

(Step S107) The processing unit 101 receives an input of a set of an actual traveling pitch and an actual traveling speed input to the input switch 107 in the process of step S102. Thereafter, the process proceeds to step S108.
(Step S <b> 108) The processing unit 101 corrects the relational expression using the set of the actual traveling pitch and the actual traveling speed that have been input in step S <b> 107. Specifically, first, the processing unit 101 reads the initial state relational expression corresponding to the gender input in step S <b> 101 from the storage unit 103. Next, the processing unit 101 corrects the relational expression by changing the offset of the read relational expression so that it passes through the set of the actual traveling pitch and the actual traveling speed that have received the input. Then, the processing unit 101 writes the corrected relational expression in the storage unit 103 as a corrected relational expression. Thereafter, the relational expression correction process is terminated.

  Next, a speed calculation process in which the wristwatch 100 according to the present embodiment calculates a travel speed from the travel pitch will be described. FIG. 6 is a flowchart showing a processing procedure of speed calculation processing executed by the wristwatch 100 according to the present embodiment. The wristwatch 100 executes the speed calculation process in the measurement mode.

(Step S201) The processing unit 101 displays a sex (male or female) on the display unit 102 so as to be selectable, and accepts a gender selection input. The user selects gender using the input switch 107. Thereafter, the process proceeds to step S202.
(Step S202) The processing unit 101 determines whether or not an instruction to start measurement is input from the input switch 107. If an instruction to start measurement is input, the process proceeds to step S203. If an instruction to start measurement is not input, the process returns to step S202.
(Step S203) The processing unit 101 starts measuring the travel time by the stopwatch function. Thereafter, the process proceeds to step S204.
(Step S <b> 204) The processing unit 101 starts measuring the number of steps by the travel detection unit 105. Thereafter, the process proceeds to step S205.
(Step S205) The processing unit 101 determines whether or not the calculation timing has come. The calculation timing is a preset timing for calculating information related to traveling, for example, every second. When the calculation timing comes, the processing unit 101 proceeds to the process of step S206. On the other hand, when it is not the calculation timing, the processing unit 101 proceeds to the process of step S211.

(Step S206) The traveling detection unit 105 calculates a traveling pitch by dividing the measured number of steps by the measured traveling time. Thereafter, the process proceeds to step S207.
(Step S207) The processing unit 101 calculates a traveling speed from the traveling pitch calculated in step S206. Specifically, the processing unit 101 reads the corrected relational expression from the storage unit 103, and calculates the traveling speed by substituting the calculated traveling pitch into the read relational expression. If the corrected relational expression is not stored in the storage unit 103, the processing unit 101 calculates the traveling speed from the traveling pitch using the initial state relational expression corresponding to the gender input in step S101. . Thereafter, the process proceeds to step S208.

(Step S208) The processing unit 101 calculates a travel distance by multiplying the travel speed calculated in Step S207 by the measured time. Thereafter, the process proceeds to step S209.
(Step S209) The processing unit 101 calculates a travel pace by taking the reciprocal of the travel speed calculated in step S207. Thereafter, the process proceeds to step S210.
(Step S <b> 210) The processing unit 101 displays information related to traveling on the display unit 102. The information related to travel is the measured number of steps, the measured travel time, the travel pitch, the travel speed, the travel distance, and the travel pace. Thereafter, the process proceeds to step S211.
(Step S211) The processing unit 101 determines whether or not an instruction to end measurement is input from the input switch 107. When an instruction to end the measurement is input, the processing unit 101 ends the stopwatch measurement and the step count measurement, and ends the speed calculation process. On the other hand, when the instruction to end the measurement is not input, the processing unit 101 returns to the process of step S205.

  As described above, in the present embodiment, the storage unit 103 stores the upper limit threshold and the lower limit threshold of the actual stride, and the processing unit 101 uses the actual running pitch input to the input switch 107 and The stride is calculated based on the set with the actual travel speed. If this stride is less than or equal to the upper limit threshold and greater than or equal to the lower limit threshold, the input of the set of the actual travel pitch and the actual travel speed is accepted. In the case of, input is not accepted. Thereby, only the input of a realistic value can be accepted.

  Moreover, in this embodiment, the memory | storage part 103 has memorize | stored beforehand the relationship data which show the relationship between a driving pitch and driving speed. Then, the processing unit 101 calculates a travel speed from the travel pitch measured by the travel detection unit 105 based on the relational data stored in the storage unit 103. As a result, it is possible to directly calculate the running speed based on the measured running pitch without using the fixed stride, so it is possible to perform processing according to the altitude according to the running situation (or walking situation) and run with less error. The speed can be calculated.

  Further, the processing unit 101 corrects the relational expression stored in the storage unit 103 based on the set of the actual traveling pitch and the actual traveling speed that the processing unit 101 has received the input. Thereby, the relational expression can be corrected based on a realistic value. In addition, the relationship between the travel pitch and the travel speed suitable for the user is set, and the travel speed is obtained from the travel pitch based on the set relationship. It is possible to calculate. This makes it possible to calculate a more accurate travel distance and travel pace.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to the drawings. The wristwatch 100 in the present embodiment has the same configuration as the wristwatch 100 in the first embodiment. The difference between the present embodiment and the first embodiment is that the processing unit 101 (generating unit) generates a relational expression from a set of a plurality of actual traveling pitches and actual traveling speeds. The processing unit 101 calculates a traveling speed from the traveling pitch measured by the traveling detection unit 105 using the generated relational expression.

  FIG. 7 is an example of relationship data indicating the relationship between the travel pitch and the travel speed, which is stored in the storage unit 103 according to the present embodiment. As shown in the figure, the storage unit 103 stores a linear expression for converting the traveling speed from the traveling pitch. In this embodiment, the relational expression of the initial state corresponding to the “factory shipment state (initial state)” is the same as that of the first embodiment. Further, the relational expression corresponding to the state “after data setting by the user” is a relational expression generated by the processing unit 101 from a set of a plurality of actual traveling pitches and actual traveling speeds.

FIG. 8 is a diagram for explaining a relational expression generation method in the present embodiment. The horizontal axis of the graph shown in this figure is the travel pitch, and the vertical axis is the travel speed. A solid line 702 shown in the figure is a relational expression after generation. The processing unit 101 obtains an approximate straight line (primary expression) from a set of a plurality of actual travel pitches and actual travel speeds (actual travel pitch, actual travel speed) 701a to 701c by the least square method, and obtains the obtained primary Let the expression be the relational expression after generation. It should be noted that the slope may be obtained from the 701a to 701c by the least square method, and the offset may be obtained so as to pass through the normal traveling group 701b. In the example shown in this figure, the processing unit 101 includes a set 701a of travel pitch and travel speed when traveling fast, a pair 701b of travel pitch and travel speed when traveling normally, and travel when traveling slowly. A relational expression is generated based on three points of the set 701c of pitch and traveling speed. For example, in the example illustrated in FIG. 7, the processing unit 101 generates a linear expression “traveling speed V = a _s × traveling pitch P−b _s ” in which the slope is the user coefficient a _s and the offset is the user coefficient b _s. ing. The relational expression after generation stored in the storage unit 103 can be changed by manual input from the input switch 107.

  A plurality of sets of the user's actual traveling pitch and actual traveling speed are input to the input switch 107 by the user. This eliminates the need for the user to actually travel when correcting or generating the relational expression. However, as in the first embodiment, even if a pair of a realistic traveling pitch alone and a realistic traveling speed alone is input, there may be cases where the two combinations are unrealistic.

  When an unrealistic set of the user's actual traveling pitch and actual traveling speed is input, the corrected relational expression corrected by the processing unit 101 may also be an unrealistic relational expression. . Therefore, in this embodiment as well, as in the first embodiment, the processing unit 101 determines whether the set of the user's actual traveling pitch and actual traveling speed input to the input switch 107 is a realistic value. If it is realistic, it is determined that the input is accepted. In other cases, it is determined that the input is not accepted. And the process part 101 correct | amends a relational expression using the several group of a user's actual driving | running pitch and actual driving | running speed which it determined with accepting an input.

  Next, a relational expression generation process in which the wristwatch 100 according to the present embodiment generates a relational expression will be described. FIG. 9 is a flowchart showing the processing procedure of the relational expression generation processing executed by the wristwatch 100 according to this embodiment. The wristwatch 100 executes the relational expression generation process in the setup mode. The user inputs data necessary for the relational expression correction process to the input switch 107 in the setup mode.

Since the processing from step S301 to S306 is the same as the processing from step S102 to S107 described above, description thereof is omitted.
(Step S307) After step S306, the processing unit 101 has received a predetermined number of times α (where α is an integer equal to or greater than 2) by the processes from step S301 to step S306. Determine whether. If the predetermined number of α inputs have been received, the process proceeds to step S308. If the predetermined number of α inputs have not been received, the process returns to step S301.
(Step S308) The processing unit 101 generates a relational expression from a set of α traveling pitches and traveling speeds, which has received an input by repeating the processes of steps S301 to S306 a predetermined number of times. Specifically, the processing unit 101 generates a linear expression for converting the traveling speed from the traveling pitch by the least square method using the set of α traveling pitches and traveling speeds that have received the input. Then, the processing unit 101 writes the generated primary expression in the storage unit 103 as a relational expression after generation. Thereafter, the relational expression generation process ends.

  The speed calculation process for determining the travel speed from the travel pitch in the present embodiment is the same as in the first embodiment.

  As described above, in the present embodiment, the processing unit 101 generates a relational expression indicating a relationship between the travel pitch and the travel speed based on a set of a plurality of actual travel pitches and actual travel speeds. As a result, the relationship between the travel pitch and the travel speed suitable for the user is set, and the travel speed is obtained from the travel pitch based on the set relationship. The speed can be calculated. This makes it possible to calculate a more accurate travel distance and travel pace.

  It should be noted that all or some of the functions of the units included in the wristwatch 100 according to the first embodiment and the second embodiment described above are recorded on a computer-readable recording medium with a program for realizing these functions. 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 portable medium such as a flexible disk, a magneto-optical disk, a ROM, and a CD-ROM, and a storage unit such as a hard disk built in the computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory inside a computer system serving as a server or a client in that case may be included and a program that holds a program for a certain period of time. 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.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the relational expression indicating the relation between the traveling pitch and the traveling speed is the primary expression, but the present invention is not limited to this. For example, the relational expression indicating the relation between the traveling pitch and the traveling speed may be a quadratic expression or a cubic expression.
In the above-described embodiment, the storage unit 103 stores a relational expression indicating the relationship between the travel pitch and the travel speed, but is not limited thereto. For example, table data indicating the relationship between the travel pitch and the travel speed may be stored as the relationship data.

In the above-described embodiment, the travel detection unit 105 calculates the travel pitch based on the travel time and the measured number of steps. However, the present invention is not limited to this, and information related to landing based on the acceleration detected by the acceleration sensor 106. The travel pitch may be calculated using (information on the travel (or walking) signal). For example, the traveling detection unit 105 may calculate the traveling pitch by measuring an interval (time interval) step by step.
In the embodiment described above, the processing unit 101 calculates the travel speed from the measured travel pitch. However, the present invention is not limited thereto, and the travel pace may be calculated from the travel pitch instead of the travel speed.
In the above-described embodiment, the wristwatch 100 is described as an example of the electronic device. However, other electronic devices may be used as long as the user can carry them, such as a pedometer, a mobile phone, and a smartphone.

  DESCRIPTION OF SYMBOLS 100 ... Wristwatch 101 ... Processing part 102 ... Display part 103 ... Memory | storage part 104 ... Power supply 105 ... Traveling detection part 106 ... Accelerometer 107 ..Input switches, 108 ... frequency divider, 109 ... crystal oscillator

Claims (8)

An input unit for inputting a set of a running pitch that is the number of steps per predetermined time and a running speed that is a running speed or a walking speed;
A calculation unit that calculates a stride based on a set of the traveling pitch and the traveling speed input to the input unit;
A storage unit for storing an upper limit threshold value indicating an upper limit value of the stride and a lower limit threshold value indicating a lower limit value of the stride;
Whether to accept an input of a set of the traveling pitch and the traveling speed input to the input unit based on the stride calculated by the calculating unit, and the upper limit threshold and the lower limit threshold stored in the storage unit A determination unit for determining whether or not,
An electronic device comprising: A relational data storage unit for storing relational data indicating a relation between the traveling pitch and the traveling speed;
A correction unit that corrects the relationship data stored in the storage unit based on a set of the traveling pitch and the traveling speed that the determination unit determines to accept input;
Based on the relation data stored in the relation data storage unit, a speed calculation unit that calculates the user's travel speed from the measured user's travel pitch;
The electronic apparatus according to claim 1, further comprising: Based on a plurality of sets of the traveling pitch and the traveling speed determined to be received by the determination unit, a generating unit that generates relational data indicating a relationship between the traveling pitch and the traveling speed;
A relational data storage unit for storing the relational data generated by the generation unit;
Based on the relation data stored in the relation data storage unit, a speed calculation unit that calculates the user's travel speed from the measured user's travel pitch;
The electronic apparatus according to claim 1, further comprising: The travel distance calculation part which calculates the travel distance which is the distance which the said user traveled or the distance which walked based on the travel speed which the said speed calculation part calculated is provided. The electronic device as described in. 5. The apparatus according to claim 1, further comprising: a pace calculation unit that calculates a travel pace that is a pace at which the user walks or travels based on the travel speed calculated by the speed calculation unit. The electronic device described. The electronic device according to claim 1, wherein the storage unit stores table data indicating a relationship between a travel pitch and a travel speed. The electronic device according to any one of claims 1 to 6, wherein the speed calculation unit calculates a travel pace that is a pace at which the user walks or travels instead of the travel speed of the user. machine. On the computer,
A calculation step for calculating a stride based on a set of the input travel pitch that is the number of steps per predetermined time and the travel speed that is the traveling speed or the walking speed;
Based on the stride calculated in the calculating step, an upper limit threshold indicating the upper limit of the stride stored in the storage unit, and a lower limit threshold indicating the lower limit of the stride, the input travel pitch and the travel speed A determination step of determining whether or not to accept a pair of inputs;
A program for running

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