WO2018186239A1 - Programme de mesure de nombre d'étapes, terminal portable et support d'enregistrement - Google Patents

Programme de mesure de nombre d'étapes, terminal portable et support d'enregistrement Download PDF

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Publication number
WO2018186239A1
WO2018186239A1 PCT/JP2018/012529 JP2018012529W WO2018186239A1 WO 2018186239 A1 WO2018186239 A1 WO 2018186239A1 JP 2018012529 W JP2018012529 W JP 2018012529W WO 2018186239 A1 WO2018186239 A1 WO 2018186239A1
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unit
steps
counting unit
relational expression
counting
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PCT/JP2018/012529
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English (en)
Japanese (ja)
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千里 谷田
功壮 久米川
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株式会社タニタ
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M3/00—Counters with additional facilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers

Definitions

  • the present invention relates to a step count measurement program, a portable terminal, and a recording medium.
  • Smartphones with a function to count the number of steps are provided. Such a smartphone counts the number of steps based on a change in acceleration generated in the smartphone itself.
  • the present invention has been made in view of the above circumstances, and an object of the invention is to provide a step count measurement program, a portable terminal, and a recording medium that count steps with high accuracy while reducing power consumption.
  • one aspect of a step count measurement program is a step count measurement program to be executed by a processor, wherein the processor is generated based on an acceleration value output from an acceleration sensor.
  • a first counting unit that acquires walking information related to the user's walking, outputs a first step number indicating the number of steps counted from a predetermined timing based on the acquired walking information, and acquires the acceleration value, and acquires the acceleration value
  • a second counting unit that outputs a second step number indicating the number of steps counted from the predetermined timing based on the first step number and a relationship between the first step number and the second step number based on the first step number and the second step number
  • a generation unit that generates a relational expression, and a correction unit that corrects the first step count counted by the first counting unit based on the relational expression.
  • the generation unit generates a relational expression indicating the relationship between the first step count and the second step count.
  • the correction unit corrects the first step count using the relational expression.
  • the second counting unit may not operate.
  • the generating unit generates the relational expression, only the first counting unit operates, whereby the number of steps counted by the first counting unit can be made closer to the second number of steps counted by the second counting unit. Compared with the case where the number of steps is counted by the conventional configuration, the number of steps can be counted with high accuracy while reducing power consumption.
  • the processor functions as the first count unit, the second count unit, and the generation unit in the preparation step for measuring the step count, and in the actual measurement step for measuring the step count, the processor It is preferable that the processor functions as the first counting unit and the correction unit.
  • the elements that function in the preparation stage are different from the elements that function in the actual measurement stage, and the functions of the second counting unit and the generation unit are stopped in the actual measurement stage. Therefore, the processing load in the actual measurement stage is reduced as compared with the configuration in which the second counting unit and the generation unit function in the actual measurement stage. As a result, power consumption is reduced. In addition, the number of steps can be counted with high accuracy.
  • step count measurement program causes the processor to function as a continuous walk counting unit that counts the number of continuous walks in the preparation stage, and the relational expression includes the first step count, the second step count, And the relationship between the number of times of continuous walking, and the generation unit generates the relational expression based on the number of first steps, the number of second steps, and the number of times of continuous walking, and the processor in the measurement step, Furthermore, it is preferable to function as the continuous walking counting unit, and the correction unit corrects the first step number counted by the first counting unit based on the number of continuous walkings and the relational expression.
  • the number of steps counted by the first counting unit can be corrected in consideration of the number of times of continuous walking.
  • the number of steps counted by the first counting unit is corrected in consideration of the number of times of continuous walking. For this reason, compared with the case where the frequency
  • the continuous walk counting unit compares the time from the timing immediately before the first step count is updated to the present time with a predetermined time to determine whether the user is walking or not. It is preferable that the number of continuous walks is counted based on the determination result.
  • the number of continuous walks can be counted based on the determination result.
  • stationary means a state where the user is not moving.
  • the processor further functions as a specifying unit that specifies a moving speed of the user in the preparation stage, and the generating unit acquires the moving speed specified by the specifying unit,
  • the relational expression is generated by dividing the relational expression into a first speed relational expression that is applied when the movement speed is high and a second speed relational expression that is applied when the movement speed is low.
  • the correction unit functions as the specifying unit, acquires the moving speed from the specifying unit, and selects one of the first speed relational expression and the second speed relational expression based on the moving speed, It is preferable that the first step number counted by the first counting unit is corrected based on the selected relational expression.
  • the processing load of the first counting unit is lighter than the processing load of the second counting unit, and the accuracy of the second step count is compared with the accuracy of the first step count. And high.
  • the second counting unit with high accuracy but heavy processing load is used in the preparation stage for generating the relational expression.
  • the number of steps is generated using the first counting unit with a light processing load and low power consumption. Therefore, in the actual measurement stage, it is possible to improve the accuracy of the number of steps while reducing power consumption.
  • One aspect of the mobile terminal according to the present invention is based on an acceleration sensor that outputs an acceleration value, a sub-processor that generates walking information related to a user's walking based on the acceleration value output from the acceleration sensor, and the walking information.
  • a first counting unit that counts a first number of steps counted from a predetermined timing; a second counting unit that counts a second number of steps counted from the predetermined timing based on the acceleration value; and Based on the number of steps and the second number of steps, a generation unit that generates a relational expression indicating the relationship between the first step number and the second number of steps, and the first counting unit counted based on the relational expression
  • a correction unit that corrects the number of steps.
  • One aspect of the recording medium according to the present invention is a recording medium in which a step count measurement program is recorded, and the processor acquires walking information relating to a user's walking generated based on an acceleration value output from an acceleration sensor.
  • a first counting unit that outputs a first step number indicating the number of steps counted from a predetermined timing based on the acquired walking information; and the acceleration value is acquired and counted from the predetermined timing based on the acquired acceleration value
  • a second counting unit that outputs a second step number indicating the number of steps; a generation unit that generates a relational expression indicating a relationship between the first step number and the second step number based on the first step number and the second step number; Based on the relational expression, the first counting unit functions as a correcting unit that corrects the first step count.
  • the generation unit since the first step count is counted using the walking information generated by the sub-processor, the first step count can be easily counted. Further, the generation unit generates a relational expression between the first step number and the second step number. As a result, after the relational expression is generated, the second counting unit may not operate. After the generating unit generates the relational expression, only the first counting unit operates, whereby the number of steps counted by the first counting unit can be made closer to the second number of steps counted by the second counting unit. Compared with the case where the number of steps is counted by the conventional configuration, it is possible to generate a cumulative number of steps with high accuracy. Therefore, it is possible to count the number of steps with high accuracy while reducing power consumption.
  • the generation unit generates a relational expression indicating the relationship between the first step number and the second step number.
  • the correction unit corrects the first step count using the relational expression.
  • the second counting unit may not operate. After the generating unit generates the relational expression, only the first counting unit operates, whereby the number of steps counted by the first counting unit can be made closer to the second number of steps counted by the second counting unit. Compared with the case where the number of steps is counted by the conventional configuration, the number of steps can be counted with high accuracy while reducing power consumption.
  • the first counting unit, the second counting unit, and the generating unit operate in the preparation step for measuring the number of steps, and the first counting unit in the measurement step for measuring the number of steps. It is preferable that the correction unit operates.
  • the elements that function in the preparation stage are different from the elements that function in the actual measurement stage, and the functions of the second counting unit and the generation unit are stopped in the actual measurement stage. Therefore, the processing load in the actual measurement stage is reduced as compared with the configuration in which the second counting unit and the generation unit function in the actual measurement stage. As a result, power consumption is reduced.
  • the number of steps can be counted with high accuracy.
  • One aspect of the mobile terminal described above further includes a main processor, and the main processor functions as the first counting unit, the second counting unit, and the generating unit in a preparation stage for measuring the number of steps.
  • the function of the first counting unit and the function of the correction unit are realized, and the processing capacity of the sub processor is preferably lower than the processing capacity of the processor.
  • the main processor realizes the function of the first counting unit, the function of the second counting unit, and the function of the generating unit in the preparation stage, and the function of the first counting unit in the actual measurement stage.
  • amendment part is implement
  • FIG. 1 is a functional block diagram illustrating a configuration example of the mobile terminal 1 according to the first embodiment.
  • the mobile terminal 1 includes a main processor 10, a storage unit 20, an acceleration sensor 30, an operation / display unit 40, a communication unit 50, and a sub processor 60.
  • the configuration of the mobile terminal 1 is not limited to the example of FIG.
  • the mobile terminal 1 may further include a camera.
  • the main processor 10 performs timing, calculation and control. Specifically, the main processor 10 implements various functions of the main processor 10 by reading the step count measurement program 221 from the storage unit 20 and executing the read step count measurement program 221. In particular, the main processor 10 implements the function of the first counting unit 110, the function of the second counting unit 120, the function of the generating unit 130, and the function of the correcting unit 140.
  • the process in which the mobile terminal 1 measures the number of steps includes a preparation stage and an actual measurement stage.
  • the function realized by the main processor 10 executing the step count measurement program 221 is different between the preparation stage where the processing load is heavy compared to the actual measurement stage and the actual measurement stage where the processing load is light.
  • the main processor 10 realizes the function of the first counting unit 110, the function of the second counting unit 120, and the function of the generating unit 130.
  • the first counting unit 110 outputs the first step number ST1
  • the second counting unit 120 outputs the second step number ST2.
  • the accuracy of the second step ST2 by the second counting unit 120 is higher than the accuracy of the first step ST1 by the first counting unit 110.
  • both the first counting unit 110 and the second counting unit 120 operate almost simultaneously (including simultaneously), and the generating unit 130 is a first unit that indicates the relationship between the first step number ST1 and the second step number ST2. 1 Relational expression F1 is generated.
  • the main processor 10 realizes the function of the first counting unit 110 and the function of the correction unit 140.
  • the first counting unit 110 which is less accurate than the second counting unit 120, operates, and the correction unit 140 uses the first step ST1 counted by the first counting unit 110 as the first relational expression F1.
  • the main processor 10 is hardware such as a CPU, an MPU (Micro Processor Unit), or an MCU (Memory Control Unit).
  • the storage unit 20 stores various programs and data. Further, the storage unit 20 functions as a work area for the main processor 10 and the sub processor 60.
  • the storage unit 20 includes a nonvolatile memory and a volatile memory.
  • the storage unit 20 stores various types of information captured from the operation / display unit 40 and the communication unit 50 and various results calculated by the sub processor 60 and the main processor 10.
  • the storage unit 20 stores a default step count program 210 for causing the sub processor 60 to function, a step count measuring program 221 for causing the main processor 10 to function, a first relational expression F1, and a table 230.
  • the first relational expression F1 is a relational expression for obtaining the number of steps ST10 in the actual measurement stage.
  • the table 230 is a table for storing the first step number ST1 and the second step number ST2 obtained by the main processor 10.
  • the storage unit 20 is, for example, a non-transitory storage medium.
  • the storage unit 20 is a known arbitrary type of storage medium, for example, a semiconductor storage medium, a magnetic storage medium, or an optical storage medium.
  • the storage unit 20 may be a storage medium in which these storage media are combined.
  • non-transitory storage media includes all computer-readable storage media except transient transmission signals (transitory, propagating signal), and excludes volatile storage media. Absent.
  • the acceleration sensor 30 is, for example, a triaxial acceleration sensor.
  • the acceleration sensor 30 detects an acceleration value A in the triaxial direction generated by walking (including running). Specifically, the acceleration sensor 30 detects an acceleration value AX in the X-axis direction, an acceleration value AY in the Y-axis direction, and an acceleration value AZ in the Z-axis direction.
  • the acceleration sensor 30 outputs the detected acceleration value A in the triaxial direction to the sub processor 60.
  • the detection method of the acceleration sensor 30 may be a capacitance method or a piezo method, and is not limited to a specific method.
  • the output of the acceleration sensor 30 may be a digital signal or an analog signal.
  • the operation / display unit 40 is, for example, a capacitive touch panel.
  • the operation / display unit 40 has functions of both an input device and a display device.
  • the operation / display unit 40 detects activation of the step count measurement program 221 and various settings as a function of the input device in response to a touch operation by the user.
  • the operation / display unit 40 outputs the detection result to the main processor 10 as user instruction information.
  • the operation / display unit 40 displays an output result by the main processor 10 in accordance with an instruction from the main processor 10 as a function of the display device.
  • the example of the output result includes information indicating the result of setting the mobile terminal 1 by the user and the number of steps ST10 corrected by the correction unit 140.
  • the portable terminal 1 may have an input device (a plurality of buttons including a numeric keypad) and a display device separately.
  • the operation / display unit 40 may be separated into an operation unit operated by the user and a display unit that displays information to the user.
  • the communication unit 50 is configured to be able to communicate with an external device other than the mobile terminal 1. Specifically, for example, the communication unit 50 performs voice communication with a mobile terminal that is a call destination via a base station of a cell in which the mobile terminal 1 is located.
  • the communication unit 50 is connected to the Internet line via, for example, the base station of the cell where the mobile terminal 1 is located.
  • the communication unit 50 downloads the step count measurement program 221 from the server device by communicating with the server device.
  • the communication unit 50 is connected to a personal computer by wire or wireless.
  • the communication unit 50 receives instruction information such as various settings and transmits an output result from the main processor 10.
  • the example of the output result includes information indicating the result of setting the mobile terminal 1 by the user and the number of steps ST10 corrected by the correction unit 140.
  • the sub-processor 60 implements the function of the default counting unit 610 by reading the default step counting program 210 from the storage unit 20 and executing the read default step counting program 210.
  • the sub processor 60 outputs the number of steps ST0 counted by the default counting unit 610 to the main processor 10 in response to a request from the main processor 10.
  • the sub processor 60 acquires the acceleration value A output from the acceleration sensor 30 and outputs the acceleration value A to the main processor 10 in response to a request from the main processor 10.
  • the sub processor 60 including the default counting unit 610 plays a role of assisting the main processor 10 and a part of processing of the main processor 10. For this reason, the sub processor 60 may have a lower processing capacity than the main processor 10.
  • the sub processor 60 operates with power consumption lower than that of the main processor 10.
  • the sub processor 60 is configured by hardware such as a CPU, an MPU, and an MCU, for example.
  • the functions realized by the default step count program 210 will be described.
  • the process in which the portable terminal 1 measures the number of steps includes a preparation stage and an actual measurement stage.
  • the preparation stage is a process until the first relational expression F1 is generated.
  • the actual measurement stage is a process of obtaining the number of steps in the actual measurement stage using the first relational expression F1 generated in the preparation stage.
  • the default counting unit 610 operates in the preparation stage and the actual measurement stage.
  • the default counting unit 610 acquires the acceleration value A output from the acceleration sensor 30, and counts the number of steps ST0 based on the acquired acceleration value A.
  • the default step count program 210 starts after the mobile terminal 1 is turned on.
  • the number of steps ST0 indicates the number of steps counted since the default step counting program 210 was started.
  • the number of steps ST0 is an example of information related to the user's walking. Note that the default step count counting program 210 may be started almost simultaneously (including simultaneously) when the mobile terminal 1 is turned on.
  • the first counting unit 110 operates in the preparation stage and the actual measurement stage.
  • the first counting unit 110 acquires the number of steps ST0 counted by the default counting unit 610 from the sub processor 60 in the preparation stage and the actual measurement stage.
  • the first counting unit 110 outputs the first step count ST1 counted from a predetermined timing based on the acquired step count ST0.
  • the first counting unit 110 detects that the user has taken one step based on the acquired number of steps ST0. That is, the first counting unit 110 detects the occurrence of one step of the user based on the acceleration value A.
  • the first counting unit 110 outputs the number of times that the user has advanced one step as the first step number ST1.
  • the predetermined timing is a timing at which counting of the number of steps is started.
  • the predetermined timing is a timing at which the user touches the icon displayed on the operation / display unit 40. That is, the predetermined timing is a timing at which the user inputs the start of step count measurement using the operation / display unit 40.
  • the step count measurement may be started at the same time when the step count measurement program 211 is started. In this case, the predetermined timing is the timing when the step count measurement program 211 is activated.
  • the acquisition of the step count ST0 by the first counting unit 110 is executed when the main processor 10 transmits an acquisition request to the sub processor 60.
  • the main processor 10 transmits an acquisition request to the sub processor 60 at a certain frequency. Therefore, the first counting unit 110 can acquire the number of steps ST0 at a constant frequency.
  • the frequency at which the main processor 10 transmits the request acquisition to the sub processor 60 is, for example, 16 Hz.
  • the frequency with which the main processor 10 transmits the request acquisition to the sub processor 60 is not limited to the example of the present embodiment, and may be set to a frequency that can reliably detect that the user has advanced one step.
  • the first counting unit 110 compares ST0 (n) with ST0 (n-1). As a result of the comparison, the first counter 110 detects that the user has advanced one step when ST0 (n) -ST0 (n-1) is “1”. On the other hand, when ST0 (n) ⁇ ST0 (n ⁇ 1) is “0”, the first counting unit 110 does not detect that the user has advanced one step.
  • the second counting unit 120 operates only in the preparation stage. First, the second counting unit 120 acquires the acceleration value A output from the sub processor 60 in the preparation stage. Next, the second counting unit 120 counts the second step number ST2 indicating the number of steps counted from the predetermined timing based on the acquired acceleration value A. In other words, the second counting unit 120 detects that the user has advanced one step based on the acquired acceleration value A. That is, the second counting unit 120 detects the occurrence of one step of the user based on the acceleration value A. The second counting unit 120 outputs the number of times the user has detected that the user has advanced one step as the second step number ST2. That is, when the second counting unit 120 detects that the user has advanced one step, the second counting unit 120 increments the second step number ST2. The second counting unit 120 may generate the second step number ST2 using the acceleration value A directly output from the acceleration sensor 30.
  • the timing at which the first counting unit 110 acquires the step count ST0 and the timing at which the second counting unit 120 acquires the acceleration value A are substantially simultaneous (including simultaneous). In short, the first counting unit 110 and the second counting unit 120 simultaneously start counting the number of steps. In addition, the time interval between the former timing and the latter timing is shorter than the time interval at which the user takes almost one step.
  • Both the second counting unit 120 and the default counting unit 610 count the number of steps based on the same acceleration value A. However, the process in which the second counting unit 120 counts the number of steps is different from the process in which the default counting unit 610 counts the number of steps.
  • the default counting unit 610 performs processing for counting the number of steps described below.
  • the default counting unit 610 calculates a difference ⁇ AX between the maximum value and the minimum value of the acceleration value AX in the X-axis direction.
  • the default counting unit 610 calculates a difference ⁇ AY between the maximum value and minimum value of the acceleration AY in the Y-axis direction and a difference ⁇ AZ between the maximum value and minimum value of the acceleration value AZ in the Z-axis direction.
  • the default counting unit 610 detects that the user has advanced one step.
  • the default counting unit 610 outputs the number of steps ST0 as the number of steps detected that the user has advanced one step.
  • the second counting unit 120 performs a process of counting the number of steps described below.
  • the second counter 120 calculates the absolute value
  • (AX 2 + AY 2 + AZ 2 ) 1/2 ). Further, the second counting unit 120 calculates a difference ⁇ A between the maximum value and the minimum value of the absolute value
  • the fixed time is, for example, 1 second, and may be set based on the time when one step of the user is expected to occur.
  • the second counting unit 120 outputs the second step number ST2 with the number of times the user has detected that one step has been taken as the number of steps.
  • the default counting unit 610 counts the number of steps using the acceleration value A acquired from the acceleration sensor 30 as it is.
  • the second counter 120 measures the acceleration value AX in the X-axis direction, the acceleration value AY in the Y-axis direction, and the acceleration value AZ in the Z-axis direction obtained from the acceleration sensor 30. Is subjected to filtering processing.
  • the filtering process includes a process of removing noise components included in the acceleration values AX, ZY, and AZ.
  • the second counter 120 measures the difference between the maximum value and the minimum value of the acceleration value in any one of the three axial directions ( ⁇ AX, Rather than using any one of ⁇ AY and ⁇ AZ), the difference ⁇ A between the maximum value and the minimum value of the absolute value
  • the second counting unit 120 performs a filtering process on the acceleration value A acquired from the acceleration sensor 30. For this reason, the accuracy of the number of steps obtained by the second counting unit 120 is higher than the accuracy of the number of steps obtained by the default counting unit 610.
  • the generation unit 130 operates only in the preparation stage. First, the generation unit 130 acquires the first step number ST1 from the first counting unit 110 and the second step number ST2 from the second counting unit 120 in the preparation stage. Then, the generation unit 130 sets the first step number ST1 per unit time and the second step number ST2 per unit time as a set, and stores the set in the table 230 in association with the date and time. In addition, the production
  • the table 230 stores a plurality of sets of first step count ST1 per unit time and second step count ST2 per unit time.
  • the generation unit 130 uses a plurality of pairs of the first step count ST1 per unit time and the second step count ST2 per unit time stored in the table 230 in the preparation stage, Formula F1 is generated, and the generated first relational expression F1 is stored in the storage unit 20.
  • the first relational expression F1 is a relational expression for obtaining the number of steps in the actual measurement stage.
  • the unit time refers to each of a plurality of divided times by dividing the time of the day into a plurality of times. For example, if the time of the day is divided into 24 equal parts, the unit time is 1 hour. Of course, the unit time may be 30 minutes. Further, when generating the first relational expression F1, the first relational expression F1 with high accuracy can be obtained by using the number of steps per unit time instead of the number of steps per day. This is because even the same user tends to change the way of walking depending on the time zone. For example, one step when doing housework at home is often smaller than one step when walking outside. For these reasons, the number of steps obtained when doing housework at home is likely to contain errors. By making the unit time shorter than one day, the characteristics of the user's walking can be reflected in the first relational expression F1.
  • the generation unit 130 performs the following processing until a unit time elapses from a certain time in the preparation stage.
  • the generation unit 130 acquires the first step number ST1 from the first counting unit 110 and acquires the second step number ST2 from the second counting unit 120.
  • the generation unit 130 sets the first step count ST1 and the second step count ST2 acquired in the unit time as a set, and stores the set in the table 230 in association with the date and time.
  • the date and time is a concept including a time zone in addition to the date.
  • the generation unit 130 repeats a process of storing a set of the first step number ST1 per unit time and the second step number ST2 per unit time in the table 230 for a certain period.
  • the unit time is set to 1 hour.
  • the first row of the table 230 shows that the first step ST1 was 62 steps and the second step ST2 was 10 steps in the time zone from 8:00 to 9:00 on June 1, 2016. Show.
  • the first step number ST1 in the first counting unit 110 is reset to 0, and the second step number ST2 in the second counting unit 120 is also reset to 0.
  • the generation unit 130 stores a set of the first step number ST1 per unit time and the second step number ST2 per unit time in the table 230 in association with the date and time until a certain period of time elapses.
  • the predetermined period is determined so that the features of the user's walking can be sufficiently understood from a practical viewpoint.
  • the certain period is one week.
  • the fixed period may exceed one week. This is because, from the viewpoint of improving the accuracy of the first relational expression F1, the number of pairs of the first step number ST1 and the second step number ST2, that is, the number of samples is preferably as large as possible.
  • the table 230 stores a plurality of sets of the first step number ST1 per unit time and the second step number ST2 per unit time.
  • the generation unit 130 reads a plurality of sets stored in the table 230.
  • the generation unit 130 generates a first relational expression F1 from a plurality of read sets by a statistical method (for example, regression analysis).
  • the generation unit 130 stores the generated first relational expression F1 in the storage unit 20.
  • the first relational expression F1 is represented by the following expression (1). However, the number of steps ST10 shown in Equation (1) corresponds to the second number of steps ST2 estimated based on the first number of steps ST1.
  • Equation (1) is a regression line.
  • ⁇ represents a coefficient.
  • ⁇ represents an intercept.
  • the coefficient ⁇ and the intercept ⁇ are derived by, for example, the least square method. If the first relational expression F1 shown in Expression (1) is used, the second step number ST2 can be estimated even at the actual measurement stage using the first step number ST1 that is less accurate than the second step number ST2. That is, the step number ST10 based on the first step number ST1 corresponds to the second step number ST2 with higher accuracy than the first step number ST1. From the above, it can be said that the first relational expression F1 is a relational expression for estimating the second number of steps ST2 from the first number of steps ST1. In addition, since the number of steps ST10 corresponding to the second number of steps ST2 can be obtained simply by substituting the first number of steps ST1 into the first relational expression F1, the processing load on the main processor 10 is reduced.
  • the correction unit 140 operates only at the actual measurement stage.
  • the correction unit 140 obtains the first relational expression F1 stored in the storage unit 20 and obtains the first step number ST1 from the first counting unit 110 in the actual measurement stage.
  • the correction unit 140 obtains the number of steps ST10 in the actual measurement stage by substituting the first number of steps ST1 into the first relational expression F1. That is, the correction unit 140 corrects the first step number ST1 based on the first relational expression F1.
  • the main functions of the mobile terminal 1 are roughly classified into functions at the preparation stage and functions at the actual measurement stage.
  • the operation of the portable terminal 1 in the preparation stage will be described using the flowcharts shown in FIGS. 3A and 3B.
  • the sub processor 60 reads the default step count program 210 from the storage unit 20 and executes the read default step count program 210.
  • the default counting unit 610 acquires the acceleration value A output from the acceleration sensor 30, and counts the number of steps ST0 based on the acquired acceleration value A (step S1).
  • the main processor 10 reads the step count measurement program 221 from the storage unit 20 in accordance with an instruction from the operation / display unit 40, and starts the read step count measurement program 221.
  • the operation / display unit 40 displays a preparation stage mode and an actual measurement stage mode in a selectable manner.
  • the main processor 10 executes a function in the preparation stage realized by the step count measurement program 221.
  • the first counting unit 110 acquires the number of steps ST0 counted by the default counting unit 610 (step S11), and determines whether or not it is detected that the user has advanced one step based on the acquired number of steps ST0 (step S11). S12). When it is detected that the user has advanced one step (YES in step S12), the first counting unit 110 increments the first step number ST1 (step S13). On the other hand, when it is not detected that the user has advanced one step (NO in step S12), the first counting unit 110 does not increment the first step number ST1.
  • the second counting unit 120 acquires the acceleration value A output from the acceleration sensor 30 (step S21), and performs a filtering process on the acquired acceleration value A (step S22). Further, the second counting unit 120 determines whether or not the user has advanced one step based on the acceleration value A subjected to the filtering process (step S23). When it is detected that the user has advanced one step (YES in step S23), the second counting unit 120 increments the second step number ST2 (step S24). On the other hand, when it is not detected that the user has advanced one step (NO in step S23), the second counting unit 120 does not increment the second step number ST2.
  • the generation unit 130 executes the processing shown in FIG. 3B. Specifically, in the case of NO in step S12 or after the process of step S13, the generation unit 130 executes the process shown in FIG. 3B. In addition, in the case of NO in step S23 or after the process of step S24, the generation unit 130 executes the process shown in FIG. 3B.
  • the generation unit 130 determines whether or not a unit time (for example, 1 hour) has elapsed since the first step ST1 and the second step ST2 were reset (step S31).
  • a unit time for example, 1 hour
  • the generation unit 130 determines that the first counting unit 110 incremented by the first counting unit 110 in the unit time and the second counting unit 120 in the unit time.
  • the incremented second step number ST2 is taken as a set.
  • the generation unit 130 stores the set of the first step number ST1 and the second step number ST2 in the table 230 of the storage unit 20 in association with the date and time in the unit time. Thereafter, the generation unit 130 resets the first step number ST1 and the second step number ST2 (step S32).
  • the process returns to step S11 and step S21.
  • the generation unit 130 determines whether or not a certain period has elapsed from the start of the preparation stage (step S33). If the certain period has not elapsed (NO in step S33), the process returns to step S2. On the other hand, when the predetermined period has elapsed (YES in step S33), the table 230 stores a plurality of sets of the first step number ST1 per unit time and the second step number ST2 per unit time. When the certain period has elapsed, the generation unit 130 reads a plurality of sets of the first step number ST1 and the second step number ST2 from the table 230 of the storage unit 20.
  • generation part 130 produces
  • step count measurement program 221 is maintained continuously from the preparation stage.
  • the sub-processor 60 executes the default step count program 210 similarly to step S1 even after the processing in the preparation stage is completed. Specifically, as in step S1, the default counting unit 610 counts the number of steps ST0 (step 41).
  • the main processor 10 executes the actual measurement function realized by the step count measurement program 2210.
  • steps S43 to S45 processing similar to that of the first counting unit 110 in the preparation stage is performed. That is, processing similar to the processing from step S11 to step S13 is performed. If NO in step S44 or after the process of step S45, the process of the next step 46 is performed.
  • the correction unit 140 determines whether or not the screen on the operation / display unit 40 is being displayed (step S46).
  • the correction unit 140 acquires the first step number ST1 and reads the first relational expression F1 from the storage unit 20.
  • amendment part 140 calculates
  • the operation / display unit 40 displays the number of steps ST10 at the actual measurement stage calculated by the correction unit 140 (step S48).
  • the operation / display unit 40 displays an icon indicating whether or not the activated step count measurement program 221 may be terminated.
  • the operation / display unit 40 gives the main processor 10 an instruction indicating the end of the step count measurement program 221, that is, an instruction indicating the end of the step count ST 10 measurement.
  • the first counting unit 110 determines whether or not an instruction indicating that the measurement of the step count ST10 is completed is received from the operation / display unit 40 (step S49). . If the first counter 110 has not received an instruction indicating that the measurement is to end (NO in step S49), the process returns to step S43. On the other hand, when the first counting unit 110 receives an instruction indicating that the measurement is finished (YES in step S49), a series of processes in the actual measurement stage is finished.
  • both the first counting unit 110 and the second counting unit 120 operate in the preparation stage.
  • the generation unit 130 generates a first relational expression F1 indicating the relationship between the first step number ST1 and the second step number ST2.
  • the correcting unit 140 generates the step number ST10 using the first step number ST1 measured by the first counting unit 110 and the first relational expression F1.
  • the second counting unit 120 has a larger processing load and higher power consumption than the first counting unit 110.
  • the second counting unit 120 has higher counting accuracy than the first counting unit 110. Since both the first counting unit 110 and the second counting unit 120 operate in the preparation stage, the power consumption increases.
  • the mobile terminal 1 can count the number of steps with high accuracy while reducing power consumption, compared to the case of counting the number of steps with the conventional configuration.
  • the step count measurement program 221 described in the first embodiment does not have a function of detecting continuous walking.
  • the step count measurement program 222 of the second embodiment has a function of counting the number NC of continuous walks.
  • the second embodiment is different from the first embodiment in that the generation unit 130 generates the relational expression F based on the number of consecutive walks NC in addition to the first step number ST1 and the second step number ST2.
  • the second embodiment portions different from the first embodiment will be described.
  • Continuous walking means that the user walks continuously without stopping.
  • the number NC of continuous walks means the number of times a series of continuous walks have been performed. For example, a user may post a mail item to a post box. In this case, it is assumed that the user walks from his / her home to the post box, stops for posting, and walks back from the post box to his / her home.
  • walking in this process is performed in unit time, walking from home to the postbox and walking from the postbox to the home correspond to continuous walking.
  • the number NC of continuous walks per unit time is “2”.
  • FIG. 4 is a functional block diagram showing a configuration example of the mobile terminal 1 in the second embodiment.
  • the main processor 10 reads the step count measurement program 222 from the storage unit 20 and executes the read step count measurement program 222.
  • the main processor 10 includes the function of the first counting unit 110, the function of the second counting unit 120, the function of the generating unit 130, and the function of the correcting unit 140, in addition to the function of the continuous walking counting unit 111. Further realize the function.
  • the continuous walk counting unit 111 operates in the preparation stage and the actual measurement stage.
  • the continuous walk counting unit 111 counts the number NC of continuous walks based on the first step number ST1.
  • the continuous walking counting unit 111 manages state information indicating the state of the user.
  • the state information indicates whether the user's state is walking or the user's state is stationary.
  • stationary means a state where the user is not moving. Examples of stationary include a state where the user is standing at the same position, a state where the user is sitting, and a state where the user is sleeping.
  • the details of the continuous walking counting unit 111 are as follows.
  • the continuous walking counting unit 111 determines that the state of the user is walking when the first step number ST1 increases before a predetermined time (for example, 1 second) passes.
  • the continuous walking counting unit 111 determines that the user's state is stationary, assuming that the user's continuous walking is interrupted. When it is determined that the user's state is stationary, the continuous walking counting unit 111 increases the number NC of continuous walkings by “1”. As described above, the continuous walking counting unit 111 determines whether the user is walking or the user is stationary by comparing the walking time from the timing immediately before the first step ST1 is updated to the current time with the predetermined time. To do.
  • the predetermined time may be, for example, 0.8 seconds, and is not limited to the example of the present embodiment. The predetermined time may be set based on the time when one step of the user is expected to occur.
  • the generation unit 130 acquires the number NC of continuous walks counted by the continuous walk counting unit 111. And the production
  • the generation unit 130 repeats the following process until a certain period elapses.
  • the generating unit 130 sets the first step number ST1 per unit time, the second step number ST2 per unit time, and the number of times of continuous walking NC per unit time as a set (ST1, ST2, NC).
  • the generation unit 130 stores the group in the table 230 in association with the date and time.
  • the generation unit 130 repeats the process of storing the set (ST1, ST2, NC) in the table 230 in association with the date and time for each unit time.
  • the generation unit 130 reads the table 230 from the storage unit 20, and generates the second relational expression F2 by a statistical method (for example, regression analysis).
  • the second relational expression F2 is expressed by the following expression (2).
  • Formula (2) represents that the regression line shown in the above formula (1) is corrected using the number NC of continuous walks.
  • ⁇ is a coefficient of the number NC of continuous walks.
  • the relational expression F has the first step number ST1 and the number NC of continuous walkings as variables.
  • the generation unit 130 obtains a set (ST1, ST2, NC) of the first step number ST1, the second step number ST2, and the number of consecutive walks NC per unit time.
  • a plurality of data are read from the table 230. Then, for example, the generating unit 130 calculates the coefficient ⁇ , the coefficient ⁇ , and the intercept ⁇ of Expression (2) by applying the least square method to the plurality of read sets (ST1, ST2, NC).
  • the correction unit 140 acquires the second relational expression F2 shown in Expression (2) stored in the storage unit 20 in the actual measurement stage. Further, the correction unit 140 acquires the first number of steps ST1 from the first counting unit 110, and acquires the number of times of continuous walking NC from the continuous walking counting unit 111. The correction unit 140 calculates the number of steps ST10 in the actual measurement stage by substituting the first number of steps ST1 and the number of times of continuous walking NC into the second relational expression F2 shown in Expression (2). That is, the number of steps ST10 estimated to be counted by the second counting unit 120 is obtained.
  • 5A and 5B are flowcharts illustrating the operation of the mobile terminal 1 in the preparation stage of the second embodiment.
  • the process related to the step count measurement program 222 in the second embodiment is different from the process related to the step count measurement program 221 in the first embodiment in the following points. Specifically, as shown in FIG. 5A, steps S14 to S19 are provided after step S13.
  • step S12 If the determination result in step S12 is affirmative, that is, if it is detected that the user has advanced one step (YES in step S12), the first step number ST1 is incremented in the next step S13. In this case, the continuous walking counting unit 111 resets the walking time (step S14). The walking time indicates the time from when the previous step was detected to the present. The case where the walking time becomes long means that it takes time from the previous step to the next step. Thereafter, the continuous walking counting unit 111 sets the state information to information indicating that the user's state is walking (step S15).
  • the continuous walking counting unit 111 determines whether or not the state information indicates walking (step S16). When the state information indicates that the user's state is walking (YES in step S16), the continuous walking counting unit 111 determines whether or not the walking time exceeds a predetermined time (for example, 1 second) ( Step S17). If the walking time exceeds the predetermined time (YES in step S17), the continuous walking counting unit 111 increments the number NC of continuous walking (step S18). Then, the continuous walk counting unit 111 sets the state information to information indicating that the user's state is stationary (step S19).
  • a predetermined time for example, 1 second
  • the generation unit 130 determines whether or not a unit time (for example, 1 hour) has elapsed since the first step ST1 and the second step ST2 are reset in any of the five cases described below.
  • a unit time for example, 1 hour
  • the first case is a case where the determination result in step S16 is negative, that is, a case where the state information indicates stationary (NO in step S16).
  • the second case is a case where the determination result in step S17 is negative, that is, a case where the walking time does not exceed the predetermined time (NO in step S17).
  • the third case is when the process of step S19 is completed.
  • the fourth case is when the determination result of step S23 is negative, that is, when one step is not detected (NO in step S23).
  • the fifth case is when the process of step S24 is completed.
  • the generation unit 130 sets the set of the first step number ST1, the second step number ST2, and the number of consecutive walks NC in this unit time as the date and time in the unit time.
  • the information is stored in the table 230 of the storage unit 20 in association. Thereafter, the generation unit 130 resets the first step number ST1, the second step number ST2, and the number NC of consecutive walks (step S27).
  • step S27 ends or when the determination result of step S26 is negative (NO in step S26)
  • the generation unit 130 determines whether a certain period has elapsed since the start of the preparation stage (step S26). S28). If the certain period has not elapsed (NO in step S28), the process returns to step S21 and step S11.
  • the table 230 stores a plurality of sets of the first step number ST1, the second step number ST2, and the number of consecutive walks NC.
  • the generation unit 130 reads a plurality of sets of the first step number ST1, the second step number ST2, and the number of consecutive walks NC from the table 230 of the storage unit 20.
  • generation part 130 produces
  • the generation unit 130 stores the second relational expression F2 in the storage unit 20, the series of processes in the preparation stage ends.
  • FIG. 5C is a flowchart illustrating an example of the operation of the mobile terminal 1 at the actual measurement stage in the second embodiment.
  • the flowchart shown in FIG. 5C is different from the flowchart of the first embodiment shown in FIG. 3C in the following points. Specifically, the process of step S43b shown in FIG. 5C is executed instead of the process of steps S43 to S45 shown in FIG. 3C. Further, the process of step S47b is executed instead of the process of step S47.
  • differences will be described.
  • step S43b the first step number ST1 and the number NC of continuous walks are counted.
  • the processing in step S43b is the same as the processing in steps S11 to S19 described with reference to FIG. 5A.
  • step S47b the correction unit 140 calculates the number of steps ST10 in the actual measurement stage by substituting the first number of steps ST1 and the number of times of continuous walking NC into the second relational expression F2 read from the storage unit 20.
  • the number of steps ST10 is further obtained using the second relational expression F2 in consideration of the number of continuous walks. For this reason, the main processor 10 can count the number of steps with higher accuracy than the first embodiment while reducing the power consumption of the mobile terminal 1.
  • the step count measurement program 222 described in the second embodiment when a user is on a vehicle, vibration generated in the vehicle may be erroneously measured as the number of steps.
  • the third embodiment solves such a problem.
  • the function realized by the step count measurement program 223 in the third embodiment is different from the second embodiment in the following points.
  • it is determined whether or not the user is on a vehicle.
  • a first speed relational expression F31 applied when the movement speed is low and a second speed relational expression F32 applied when the movement speed is high are generated.
  • FIG. 6 is a functional block diagram illustrating a configuration example of the mobile terminal 1 according to the third embodiment.
  • the third embodiment differs from the second embodiment in the following points.
  • the main processor 10 reads the step count measurement program 223 from the storage unit 20 and executes the read step count measurement program 223.
  • the main processor 10 adds the function of the first counting unit 110, the function of the second counting unit 120, the function of the generating unit 130, the function of the continuous walking counting unit 111 and the correcting unit 140,
  • the function of the specifying unit 112 that specifies the magnitude of the moving speed is further realized.
  • the current moving speed V is acquired from the specifying unit 112, and the generating unit 130 generates the first speed relational expression F31 and the second speed relational expression F32 based on the moving speed V.
  • the correction unit 140 corrects the first step number ST1 using the first speed relational expression F31 and the second speed relational expression F32 considering the moving speed V, and generates the step number ST10.
  • the identification unit 112 operates in the preparation stage and the actual measurement stage.
  • the specifying unit 112 specifies the moving speed V of the user.
  • the specifying unit 112 acquires the acceleration value A in the triaxial direction from the acceleration sensor 30 and calculates the moving speed V of the user using the acquired acceleration value A.
  • the method for calculating the moving speed V may be any method.
  • the specifying unit 112 calculates the magnitude
  • (AX 2 + AY 2 + AZ 2 ) 1/2 ). Then, the specifying unit 112 calculates the moving speed V by integrating the calculated acceleration value magnitude
  • the generation unit 130 determines whether the user is not in a vehicle or in a vehicle. According to the determination result, the generation unit 130 generates the first speed relational expression F31 and the second speed relational expression F32. Specifically, the generation unit 130 acquires the current moving speed V from the specifying unit 112. Then, the generation unit 130 generates the second relational expression F2 shown in Expression (2) based on the current moving speed V by dividing it into a first speed relational expression F31 and a second speed relational expression F32.
  • the first speed relational expression F31 is an expression applied when the current moving speed V is less than the reference value Vref.
  • the second speed relational expression F32 is an expression applied when the current moving speed V is equal to or higher than the reference value Vref.
  • the reference value Vref is a reference for determining whether the moving speed V is the speed of the vehicle.
  • the reference value Vref is a predetermined value, for example, 8 km / h. Generally speaking, 8 km / h is faster than walking and slower than bicycle.
  • the generation unit 130 determines that the user is in the first state W not on the vehicle when the current moving speed V is less than the reference value Vref.
  • the first state W is a state where the user is walking.
  • the first state W is a state in which the user is running at a speed faster than the walking speed without getting on the vehicle.
  • the generation unit 130 determines that the user is in the second state TR riding on the vehicle. And the production
  • the generation unit 130 sets the first step number ST1 per unit time, the second step number ST2 per unit time, and the number of consecutive walks NC per unit time ( ST1, ST2, NC). In addition to the set, the generation unit 130 stores either the first state W or the second state TR in the table 230 in association with the date and time. As described above, the generation unit 130 repeats the process of storing the set (ST1, ST2, NC) and one of the first state W and the second state TR in the table 230 in association with the date and time for each unit time.
  • FIG. 7 is a diagram illustrating an example of the table 230 according to the third embodiment.
  • the first row of the table 230 includes a set (ST1, ST2) of the first step number ST1, the second step number ST2, and the number of consecutive walks NC in the time zone from 8:00 to 9:00 on June 1, 2016. , NC) is associated with the first state W.
  • the first step number ST1 in the time zone from 13:00 to 14:00, is 1241 steps, of which 120 steps are associated with the first state W, and the remaining 1121 steps are the first steps. It shows that it is associated with the two-state TR.
  • the second step number ST2 is 805 steps, of which 95 steps are associated with the first state W and the remaining 710 steps are associated with the second state TR. Show.
  • the generation unit 130 sets NA (Not Applicable) to the corresponding set (ST1, ST1). ST2, NC).
  • the generation unit 130 generates a first speed relational expression F31 using a set associated with the first state W after a certain period of time has elapsed, and uses the set associated with the second state TR to A speed relational expression F32 is generated. Specifically, the generation unit 130 extracts a plurality of sets (ST1, ST2, NC) associated with the first state W from the table 230 after a certain period of time has elapsed. And the production
  • the first speed relational expression F31 applied to the first state W where the user is not on the vehicle is expressed by the following expression (3).
  • the second speed relational expression F32 applied to the second state TR in which the user is on the vehicle is expressed by the following expression (4).
  • ⁇ 1 and ⁇ 2 are coefficients of the first step number ST1.
  • ⁇ 1 and ⁇ 2 are coefficients of the number NC of continuous walks.
  • ⁇ 1 and ⁇ 2 are intercepts.
  • the generation unit 130 applies the least square method to the set associated with the first state W.
  • the coefficient ⁇ 2 the coefficient ⁇ 2, and the intercept ⁇ 2
  • the generation unit 130 applies the least square method to the set associated with the second state TR.
  • the correction unit 140 selects one of the first speed relational expression F31 and the second speed relational expression F32 stored in the storage unit 20 based on the current moving speed V in the actual measurement stage. Further, the correction unit 140 acquires the first number of steps ST1 from the first counting unit 110, and acquires the number of times of continuous walking NC from the continuous walking counting unit 111. The correction unit 140 calculates the number of steps ST10 in the actual measurement stage by substituting the first step number ST1 and the number of times of continuous walking NC into the selected one of the first speed relational expression F31 and the second speed relational expression F32. To do. That is, the number of steps ST10 estimated to be counted by the second counting unit 120 is obtained.
  • the correction unit 140 acquires the current moving speed V from the specifying unit 112, the first step ST1 from the first counting unit 110, and the number of continuous walks from the continuous walking counting unit 111 in the actual measurement stage. Obtain NC. And the correction
  • amendment part 140 calculates step count ST10 in a measurement step by substituting the acquired 1st step number ST1 and the frequency
  • the correction unit 140 determines that the user is in the second state TR riding on the vehicle.
  • the correction unit 140 selects the second speed relational expression F32 from the first speed relational expression F31 and the second speed relational expression F32.
  • amendment part 140 substitutes the acquired 1st step number ST1 and the frequency
  • FIG. 8A is a graph illustrating the relationship between the first step number ST1 counted by the first counting unit 110 and the second step number ST2 counted by the second counting unit 120.
  • the square symbol indicates a set (ST1, ST2, NC) associated with the first state W in which the user is not on the vehicle.
  • a black circle symbol indicates a set (ST1, ST2, NC) associated with the second state TR in which the user is on the vehicle.
  • a dotted line virtually indicates a case where the first step number ST1 matches the second step number ST2.
  • the plurality of sets indicated by square symbols are distributed slightly off the dotted line.
  • the cause of this shift is considered to be due to the way the user walks.
  • a plurality of sets indicated by black circle symbols are distributed greatly deviated from the dotted line.
  • the cause of this deviation is considered to be that the vibration of the vehicle is counted as the number of steps.
  • FIG. 8B is a graph illustrating the relationship between the number of steps ST10 corrected by the correction unit 140 and the second number of steps ST2 counted by the second counting unit 120.
  • the square symbol indicates a set (ST1, ST2, NC) associated with the first state W in which the user is not on the vehicle.
  • a black circle symbol indicates a set (ST1, ST2, NC) associated with the second state TR in which the user is on the vehicle.
  • a dotted line virtually indicates a case where the first step number ST1 matches the second step number ST2.
  • the sets (ST1, ST2, NC) associated with the first state W in which the user is not on the vehicle are distributed substantially along the dotted line.
  • the miscounting of the set (ST1, ST2, NC) associated with the second state TR in which the user is on the vehicle is improved. Therefore, it can be seen that the number of steps is counted with higher accuracy.
  • the number of steps ST10 is obtained using the first speed relational expression F31 and the second speed relational expression F32 based on the moving speed V. For this reason, the main processor 10 can count the number of steps with higher accuracy than the first and second embodiments while reducing the power consumption of the mobile terminal 1.
  • the relational expression is generated on the condition that a certain period elapses, but the present invention is not limited to this.
  • the transition from the preparation stage to the actual measurement stage may be performed.
  • Various functions of the step count measurement program 221 may be configured so that the user can set the period of the preparation stage.
  • the function of the default counting unit 610 is realized in the sub-processor 60.
  • the function of the default counting unit 610 can be realized in the acceleration sensor 30.
  • the default counting unit 610 may be provided as a part of the acceleration sensor 30.
  • the main processor 10 may read the default step count program 210 from the storage unit 20 and execute the read default step count program 210.
  • the default counting unit 610 may count the number of steps ST0 based on the acceleration value A detected by the acceleration sensor 30 in the preparation stage and the actual measurement stage.
  • the default counting unit 610 may output the number of steps ST0 to the sub processor 60 or the first counting unit 110 of the main processor 10.
  • the sub processor 60 outputs the number of steps ST0 in response to a request from the main processor 10, but the present invention is not limited to this.
  • the 1st count part 110 should just be able to acquire the walk information regarding a user's walk.
  • the example of the walking information includes a signal indicating that the number of steps has increased by “1” in addition to the number of steps ST0.
  • the signal corresponds to an interrupt signal output from the sub processor 60, for example.
  • the interrupt signal itself is generated by the sub processor 60 when the default counting unit 610 detects that the user has advanced one step.
  • the first counting unit 110 acquires an interrupt signal as walking information
  • the first counting unit 110 detects that the user has advanced one step by detecting the interrupt signal (step S12 illustrated in FIG. 3A).
  • the first step number ST1 and the second step number ST2 are counted using the acceleration sensor 30.
  • the gyro sensor may be used in combination with the acceleration sensor 30 to count the first step number ST1 and the second step number ST2. In this case, the gyro sensor only needs to be connected to the sub processor 60.
  • the gyro sensor detects an angular velocity ⁇ in three axes, that is, an angular velocity ⁇ X around the X axis, an angular velocity ⁇ Y around the Y axis, and an angular velocity ⁇ Z around the Z axis.
  • the default counting unit 610 counts the number of steps ST0 using the acceleration value A in the triaxial direction and the angular velocity ⁇ in the triaxial direction.
  • the second counting unit 120 also counts the first step number ST1 using the angular velocity ⁇ in the three axes in addition to the acceleration value A in the three axis directions.
  • the current moving speed V is calculated based on the acceleration value A in the triaxial direction.
  • the current moving speed V may be calculated based on the current position acquired by GPS (Global Positioning System).
  • the specifying unit 112 may calculate the time change of the position.
  • the first speed relational expression F31 and the second speed relational expression F32 are generated in consideration of the number NC of continuous walkings, but the present invention is not limited to this.
  • the main processor 10 may generate the first speed relational expression F31 and the second speed relational expression F32.
  • the first speed relational expression F31 applied to the first state W in which the user is not on the vehicle is expressed by the following expression (5).
  • the second speed relational expression F32 applied to the second state TR in which the user is on the vehicle is expressed by the following expression (6).
  • F31 (ST1) ST1 ⁇ ⁇ 1 + ⁇ 1 (5)
  • F32 (ST1) ST1 ⁇ ⁇ 2 + ⁇ 2 (6)
  • DESCRIPTION OF SYMBOLS 1 ... Portable terminal, 10 ... Main processor, 20 ... Memory

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Abstract

L'invention concerne un terminal portable comprenant : un capteur d'accélération qui délivre une valeur d'accélération; un sous-processeur qui génère des informations de marche sur la marche de l'utilisateur, sur la base de la valeur d'accélération; une première unité de comptage qui compte un premier nombre d'étapes indiquant un nombre d'étapes, sur la base des informations de marche; une seconde unité de comptage qui compte un second nombre d'étapes indiquant un certain nombre d'étapes, sur la base de la valeur d'accélération; une unité de génération qui génère une première expression relationnelle indiquant la relation entre le premier nombre d'étapes et le second nombre d'étapes, sur la base du premier nombre d'étapes et du second nombre d'étapes; et une unité de correction qui corrige le premier nombre d'étapes sur la base de la première expression relationnelle.
PCT/JP2018/012529 2017-04-05 2018-03-27 Programme de mesure de nombre d'étapes, terminal portable et support d'enregistrement WO2018186239A1 (fr)

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