JP2018180683A - Number-of-steps measurement program and portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately count the number of steps while reducing power consumption.SOLUTION: A portable terminal 1 comprises: an acceleration sensor 30 which outputs an acceleration value; a sub-processor 60 which generates walking information about user's walking on the basis of the acceleration value; a fist counting unit 110 which counts a first number of steps ST1 which indicates the number of steps on the basis of the walking information; a second counting unit 120 which counts a second number of steps ST2 which indicates the number of steps on the basis of the acceleration value; a generation unit 130 which generates a first relational expression F1 showing a relation between the first number of steps ST1 and the second number of steps ST2 on the basis of both of them; and a correction unit 140 which corrects the first number of steps ST1 on the basis of the first number of steps ST1 and the first relational expression F1 to output the cumulative number of steps ST10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a step count measurement program and a portable terminal.

  A smartphone having a function of counting the number of steps is provided. Such a smartphone counts the number of steps based on the change in acceleration generated in the smartphone itself.

  In the above-described smartphone, for example, when the user moves with a foot, a small change in acceleration can not be captured, and the foot may not be counted in the number of steps. As a result, the number of steps is counted less than the actual number. Then, the technique which raises the measurement accuracy of step number is known by counting the step number in consideration of the characteristic of a user's walk (patent documents 1).

Patent No. 5310742 gazette

  However, when trying to realize the processing technology for considering the walking characteristic of the user disclosed in Patent Document 1 with a smartphone, the CPU (Central Processing Unit) mounted on the smart phone considers the walking characteristic of the user There is a problem that the CPU load has to be increased. As a result, there is a problem that the battery of the smartphone is exhausted quickly.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a step counting program and a portable terminal that count the number of steps with high accuracy while reducing power consumption.

  In order to solve the above problems, one aspect of a step counting program according to the present invention is a step counting program to be executed by a processor, wherein the processor is generated based on an acceleration value output from an acceleration sensor The first counting unit that acquires walking information related to the user's walking and outputs a first step number indicating the number of steps accumulated from a predetermined timing based on the acquired walking information; acquiring the acceleration value; and acquiring the acquired acceleration value A second counting unit that outputs a second step number indicating the number of steps accumulated from the predetermined timing based on the first timing, and a relationship between at least the first number of steps and the second number of steps based on the first number of steps and the second number of steps. It is made to function as a generation unit that generates the relational expression shown, and a correction unit that outputs the cumulative number of steps based on the first number of steps and the relational expression.

  According to one aspect of the step count measurement program described above, the generation unit generates a relational expression indicating a relationship between at least the first step count and the second step count. Since the correction unit generates the cumulative number of steps using the relational expression, the cumulative number of steps can be made close to the second number of steps. As a result, after the relational expression is generated, it is possible to operate only the first counting unit and generate the highly accurate cumulative number of steps without operating the second counting unit. Therefore, it is possible to count the number of steps with high accuracy while reducing power consumption.

  One aspect of the step counting program described above causes the processor to function as the first counting unit, the second counting unit, and the generating unit in a preparation step of measuring the number of steps, and in the measurement step of measuring the number of steps. It is preferable to cause a processor to function as the first counting unit and the correction unit.

  According to this aspect, it is possible to make the element to function in the preparation stage different from the element to function in the measurement stage, and to stop the functions of the second counting unit and the generation unit in the measurement stage. Therefore, it becomes possible to reduce the processing load at the measurement stage and to count the number of steps with high accuracy while reducing the power consumption.

  One aspect of the step count measurement program causes the processor to further function as a continuous walk counting unit that counts the number of continuous walks in the preparation step, and the relational expressions include the first step count, the second step count, And indicates the relationship between the number of continuous walks, the generation unit generates the relational expression based on the first number of steps, the second number of steps and the number of continuous walks, and in the measurement step, the processor Furthermore, it is preferable to function as the continuous gait counting unit, and the correction unit to output the cumulative number of steps based on the first number of steps and the number of continuous walking and the relational expression.

  According to this aspect, the cumulative number of steps can be generated in consideration of the number of continuous walking. When walking at a certain distance, if the number of continuous walkings is large, walking and standing still are repeated, but if the number of continuous walkings decreases, the time to continue walking will be longer. Therefore, the number of continuous walks indicates the manner of walking. According to this aspect, since the accumulated number of steps is generated in consideration of the aspect of walking, it is possible to further improve the accuracy of the accumulated number of steps while reducing the power consumption as compared with the case where the number of continuous walkings is not considered. .

  In one aspect of the step counting program described above, the continuous gait counting unit compares the time from the timing immediately before the first step count is updated to the current time with a predetermined time to determine whether the user is walking or not It is preferable to determine whether the user is at rest and to count the number of continuous walks based on the determination result.

  According to this aspect, it is determined that the user is stationary when the predetermined time has elapsed since the update of the number of steps, so the number of continuous walks can be counted based on the determination result. Also, by adjusting the predetermined time, it is possible to improve the accuracy of the number of continuous walking. Therefore, while reducing the power consumption, it is possible to further improve the accuracy of the cumulative number of steps as compared with the case where the number of continuous walks is not considered.

  One aspect of the step count measurement program causes the processor to further function as a specification unit that specifies the movement speed of the user in the preparation step, and the generation unit acquires the movement speed specified by the specification unit, The relational expression is generated by being divided into a first velocity relational expression to be applied when the moving velocity is high and a second velocity relational expression to be applied when the moving velocity is low, and Furthermore, the control unit functions as the identification unit, the correction unit acquires the movement velocity from the identification unit, and selects one of the first velocity relation equation and the second velocity relation equation based on the movement velocity. Preferably, the cumulative number of steps is output based on the selected relational expression and the first number of steps.

  According to this aspect, since two types of relational expressions corresponding to the moving speed are prepared, the relational expressions can be used properly depending on whether the user is in the vehicle or not. As a result, while reducing the power consumption, the influence of the vibration of the vehicle can be reduced and the accuracy of the cumulative number of steps can be further improved.

  In one aspect of the step counting program described above, 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 is compared with the accuracy of the first step Preferably high.

  According to this aspect, although the second counting unit having high accuracy but heavy processing load is used in the preparation stage of generating the relational expression, the processing load is light and power consumption is low in the measurement stage after generating the relational expression. The first counting unit is used to generate the cumulative number of steps. Therefore, at the measurement stage, it is possible to improve the accuracy of the cumulative number of steps while reducing the power consumption.

  One aspect of a portable terminal according to the present invention includes an acceleration sensor that outputs an acceleration value, a sub processor that generates walking information related to the 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 step count indicating a step count accumulated from a predetermined timing; a second counting unit that counts a second step count indicating a step count accumulated from the predetermined timing based on the acceleration value; 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 number of steps and the second number of steps, and outputting the cumulative number of steps based on the first number of steps and the relational expression And a correction unit.

  According to one aspect of the portable terminal described above, since the first step number is counted using the walking information generated by the sub processor, the first step number can be easily counted. Further, the generation unit generates a relational expression between the first number of steps and the second number of steps. The correction unit corrects the cumulative number of steps using the relational expression, so that the cumulative number of steps can be made close to the second number of steps. As a result, after the relational expression is generated, it is possible to operate only the first counting unit and generate the highly accurate cumulative number of steps without operating the second counting unit. Therefore, it is possible to count the number of steps with high accuracy while reducing power consumption.

  In one aspect of the portable terminal described above, in the preparation step of measuring the number of steps, the first counting portion, the second counting portion, and the generating portion are operated to measure the number of steps. And it is preferable to operate the said correction | amendment part.

  According to this aspect, it is possible to make the element to function in the preparation stage different from the element to function in the measurement stage, and to stop the functions of the second counting unit and the generation unit in the measurement stage. Therefore, the processing load at the measurement stage can be reduced and the power consumption can be reduced.

It is a functional block diagram showing composition of personal digital assistant 1 in a 1st embodiment. It is a figure which shows an example of the memory content of the table 230 in 1st Embodiment. It is a flow chart which illustrates operation of personal digital assistant 1 of a preparatory stage in a 1st embodiment. It is a flow chart which illustrates operation of personal digital assistant 1 of a preparatory stage in a 1st embodiment. It is a flow chart which illustrates operation of personal digital assistant 1 of a measurement phase in a 1st embodiment. It is a functional block diagram showing composition of personal digital assistant 1 in a 2nd embodiment. It is a flow chart which illustrates operation of personal digital assistant 1 of a preparatory stage in a 2nd embodiment. It is a flow chart which illustrates operation of personal digital assistant 1 of a preparatory stage in a 2nd embodiment. It is a flow chart which illustrates operation of personal digital assistant 1 of a measurement stage in a 2nd embodiment. It is a functional block diagram of portable terminal 1 in a 3rd embodiment. It is a figure which shows an example of the memory content of the table 230 in 3rd Embodiment. It is a graph which illustrates the relationship between 1st step number ST1 and 2nd step number ST2. It is a graph which illustrates the relationship between the cumulative number of steps ST10 and the second number of steps ST2.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. Also, the embodiments described below are preferable specific examples of the present invention. For this reason, various limitations that are technically preferable are attached to the present embodiment. However, the scope of the present invention is not limited to these embodiments unless specifically described in the following description.

First Embodiment
FIG. 1 is a functional block diagram showing the configuration of the portable terminal 1 in the first embodiment. The portable 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. In addition, the structure of the portable terminal 1 is not limited to the example of FIG. For example, the portable terminal 1 may further have a camera.

  The main processor 10 reads the step count measurement program 221 from the storage unit 20 and executes the read step count measurement program 221 to perform timing, calculation and control, and realizes various functions of the main processor 10. 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 generation unit 130, and the function of the correction unit 140.

  Although details will be described later, the step count measurement program 221 has different functions to be implemented in the preparation stage where the processing load is heavy and the measurement stage where the processing load is light in counting the number of steps. At the preparation stage, the main processor 10 substantially simultaneously (including simultaneous) with the first counting unit 110 which outputs the first step number ST1 with low accuracy and the second counting unit 120 which outputs the second step number ST2 with high accuracy. The generation unit 130 generates a first relational expression F1 indicating the relationship between the first number of steps ST1 and the second number of steps ST2. On the other hand, in the actual measurement stage, the first counting unit 110 and the correction unit 140 are operated to correct the first step number ST1 counted by the first counting unit 110 using the first relational expression F1 and output the step number. The main processor 10 is, for example, hardware such as a CPU, a micro processor unit (MPU), and a memory control unit (MCU).

  The storage unit 20 stores various programs and data, and functions as a work area of the main processor 10 and the sub processor 60. The storage unit 20 also includes non-volatile memory and volatile memory. The storage unit 20 stores various information fetched 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. In particular, the storage unit 20 includes a default step counting program 210 for causing the sub processor 60 to function, a step counting program 221 for causing the main processor 10 to function, and a first relational expression for obtaining the cumulative step ST10 in the measurement stage. It stores F1 and a table 230 for storing measurement results such as the first step count ST1 and the second step count ST2 determined by the main processor 10.

  The storage unit 20 is, for example, a non-transitory storage medium. Furthermore, the storage unit 20 is any type of storage medium known in the art, such as a semiconductor storage medium, a magnetic storage medium or an optical storage medium. Alternatively, the storage unit 20 may be a storage medium in which these storage media are combined. As used herein, non-transitory storage media includes all computer readable storage media except transient, propagating signals, and excludes volatile storage media. Absent.

  The acceleration sensor 30 is, for example, a three-axis acceleration sensor. The acceleration sensor 30 is an acceleration value A in three axial directions generated by walking (including traveling), specifically, an acceleration value AX in the X axis direction, an acceleration value AY in the Y axis direction, and an acceleration in the Z axis direction. Detect the value AZ. The acceleration sensor 30 outputs the detected acceleration values A in the three axial directions 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 the activation of the step count measurement program 221 and various settings as a function of the input device upon receiving a touch operation by the user, and outputs the detection result to the main processor 10 as instruction information of the user. The operation display unit 40 displays an output result (for example, setting result information and a measurement result) by the main processor 10 according to an instruction of the main processor 10 as a function of the display device. Note that, instead of the operation display unit 40, the portable device 1 may have an input device (a plurality of buttons including a ten key) and a display device separately. Also, the operation display unit 40 may be separated into an operation unit operated by the user and a display unit displayed information to the user.

  The communication unit 50 is configured to be able to communicate with the outside of the mobile terminal 1. Specifically, for example, the communication unit 50 performs voice communication with a called portable terminal via the base station of the cell in which the portable terminal 1 is located. Further, the communication unit 50 connects to the Internet, for example, via the base station of the cell in which the portable terminal 1 is located, communicates with the server apparatus, and downloads the step count measurement program 221. Furthermore, the communication unit 50 is connected to a personal computer by wire or wirelessly, receives instruction information such as various settings, and transmits an output result (for example, setting result information and measurement result) by the main processor 10.

  The sub processor 60 reads out the default step counting program 210 from the storage unit 20 and executes the read default step counting program 210 to realize the function of the default counting unit 610. In response to a request from the main processor 10, the sub processor 60 outputs the number of steps ST0 counted by the default counting unit 610 to the main processor 10. Further, the sub processor 60 obtains 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 performing a part of the processing of the main processor 10. For this reason, the sub processor 60 may have a processing capacity lower than that of the main processor 10. On the other hand, the sub processor 60 operates with lower power consumption than the power consumption of the main processor 10. The sub processor 60 is configured by, for example, hardware such as a CPU, an MPU, and an MCU.

  Next, functions implemented by the default step counting program 210 will be described. The default counting unit 610 is a preparation stage of step count measurement (a process until generation of a first relational expression F1 for obtaining the step count in the actual measurement stage) and an actual measurement stage of step count measurement (the first relational expression F1) Operate in the process of determining the number of steps in the 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 number of steps ST0 indicates the number of steps accumulated since the portable terminal 1 was powered on and the default step counting program 210 was activated.

  Next, functions implemented by the step count measurement program 221 will be described. The first counting unit 110 operates in the preparation stage and the 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 step and the measurement step. Next, the first counting unit 110 generates a first step count ST1 which has been subjected to accumulation processing from a predetermined timing, based on the acquired step count ST0. Specifically, the first counting unit 110 detects a step on the basis of the acquired number of steps ST0, and accumulates the number of detections every time a step is detected to obtain a first number of steps ST1. Here, the predetermined timing is timing when counting of the number of steps is started. For example, the timing at which the step count measurement program 221 is activated and the user inputs the measurement start of step counts is the predetermined timing. Alternatively, if the step count measurement program 211 starts measurement simultaneously with activation, the timing at which the step count measurement program 211 is activated is the predetermined timing.

  Acquisition of the number of steps ST0 by the first counting unit 110 is executed by transmitting an acquisition request to the sub processor 60. In this example, when the step count measurement program 221 is executed, the main processor 10 transmits an acquisition request to the sub processor 60 at, for example, 16 Hz. As a result, the first counting unit 110 can acquire the number of steps ST0 16 times per second.

  The number of steps ST0 acquired at the n-th timing is represented by ST0 (n). When the current timing is the n-th time, the first counting unit 110 compares ST0 (n) with ST0 (n-1), and when ST0 (n) -ST0 (n-1) is "1". , Detect that the user has advanced one step. 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. In this example, since the acquisition request is transmitted to the sub processor 60 with a high frequency of 16 times per second, it is possible to reliably detect that the user has advanced one step.

  The second counting unit 120 operates only at the preparation stage. First, the second counting unit 120 acquires the acceleration value A output from the sub processor 60 at the preparation stage. Next, based on the acquired acceleration value A, the second counting unit 120 counts a second step number ST2 indicating the number of steps accumulated from the above-described predetermined timing. In other words, the second counting unit 120 detects a step on the basis of the acquired acceleration value A, and accumulates the number of times of detection every time a step is detected to obtain a second step number ST2. The second counting unit 120 can also generate the second step count ST2 using the acceleration value A directly output from the acceleration sensor 30.

  Further, in the preparation stage, the first counting unit 110 and the second counting unit 120 substantially simultaneously perform the timing when the first counting unit 110 obtains the step count ST0 and the timing when the second counting unit 120 obtains the acceleration value A. (Includes simultaneous) At intervals shorter than the interval which becomes approximately one step when walking.

Here, the process of counting the number of steps based on the acceleration value A by the second counting unit 120 can obtain the number of steps with higher accuracy than the process of counting the number of steps based on the acceleration value A by the default counting unit 610. .
For example, the process of counting the number of steps on the basis of the acceleration value A by the default counting unit 610 includes maximum and minimum values for each of 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. A difference from the value is determined, and when the difference between the maximum value and the minimum value of acceleration values in any of the axial directions is equal to or greater than a threshold, one step is detected, and the number of detections is accumulated to generate step ST0.

On the other hand, the process of counting the number of steps based on the acceleration value A by the second counting unit 120 combines 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. Is calculated (| A | = (AX ² + AY ² + AZ ² ) ^1/2 ). Furthermore, in the processing, a step is detected and detected when the difference between the maximum value and the minimum value of the absolute values | A | of the acceleration values in the three axial directions is equal to or greater than the threshold and the difference is within a predetermined time. The number of steps is accumulated to generate a second step number ST2.

  Furthermore, in the process of counting the number of steps based on the acceleration value A by the default counting unit 610, the acceleration value A acquired from the acceleration sensor 30 is used as it is and is counted as the number of steps. On the other hand, in the process of counting the number of steps based on the acceleration value A by the second counting unit 120, the acceleration value AX in the X-axis direction and the acceleration value AY in the Y-axis direction obtained from the acceleration sensor 30 and the Z axis direction The acceleration value AZ is subjected to filtering processing for removing noise components, and a second step count ST2 is generated based on the acceleration value AX, the acceleration value AY and the acceleration value AZ after the filtering processing.

  Next, the generation unit 130 operates only at the preparation stage. First, at the preparation stage, the generation unit 130 acquires the first number of steps ST1 from the first counting unit 110 and acquires the second number of steps ST2 from the second counting unit 120. Then, the generation unit 130 stores the first number of steps ST1 per unit time and the second number of steps ST2 per unit time in the table 230 in association with date and time as a pair. Note that storage in the table 230 is repeated for each unit time, and is performed until a certain period of time elapses. In addition, the generation unit 130 uses the first step number ST1 per unit time and the second step number ST2 per unit time stored in the table 230 in the preparation step to obtain the first step number in the measurement step. The relational expression F1 is generated and stored in the storage unit 20.

  The unit time is divided into a plurality of time periods of one day, and refers to each of a plurality of divided times. For example, when the time of one day is divided into 24 equal parts, the unit time is one hour. Of course, the unit time may be 30 minutes. In addition, in 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. That is because, even for the same user, the walking style tends to change depending on the time zone. For example, one step when doing housework at home is often smaller than one when walking outside. For that reason, the number of steps obtained when doing housework at home is likely to include errors. By making the unit time shorter than one day, it is possible to reflect the feature of the user's walking manner in the first relational expression F1.

The function of the generation unit 130 will be described in more detail, where a certain time is t _{n -1} , a current time when a unit time has elapsed from a certain time t _{n -1} is t _n, and n is an arbitrary natural number. .
First, in the preparation stage, 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 until a unit time passes from a certain time t _{n -1.} Are acquired, and the first step count ST1 and the second step count ST2 acquired in this unit time are stored in the table 230 in association with the date and time zone. Thereafter, at the preparation stage, the generation unit 130 stores a set of the first number of steps ST1 per unit time and the second number of steps ST2 per unit time for a certain period.

  Here, the function of the generation unit 130 will be described in more detail with reference to FIG. 2 showing an example of the table 230 in the first embodiment.

  In the example of FIG. 2, the unit time is set to 1 hour. For example, the first row of the table 230 indicates that the first step number ST1 is 62 steps and the second step number ST2 is 10 steps in the time zone from 8:00 to 9:00 on June 1, 2016. It shows. At 8 o'clock on June 1, 2016, 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. At 9:00 on June 1, 2016, the generation unit 130 acquires the first number of steps ST1 = 62 and the second number of steps ST2 = 10. The generation unit 130 stores the first number of steps ST1 = 62 and the second number of steps ST2 = 10 in the table 230 in association with the time zones of June 1, 2016 and 8:00 to 9:00.

  As described above, the generation unit 130 stores, in the table 230, a combination of the first number of steps ST1 per unit time and the second number of steps ST2 per unit time in the preparation stage until the predetermined period elapses, Do. The fixed period is determined so that the characteristics of the walking manner of the user can be sufficiently grasped from a practical point of view. For example, the fixed period is one week. However, from the viewpoint of improving the accuracy of the first relational expression F1, the number of sets of the first step number ST1 and the second step number ST2 is preferably as large as possible, and therefore the predetermined period may exceed one week.

  Next, in the preparation stage, the generation unit 130 reads out a set of the first step number ST1 per unit time and the second step number ST2 per unit time stored in the table 230 for a fixed period, and performs statistical method (regression analysis) Thus, the first relational expression F1 for estimating the second step count ST2 from the first step count ST1 is generated and stored in the storage unit 20.

The first relational expression F1 is expressed by the following expression (1). However, the cumulative number of steps ST10 is a second number of steps ST2 estimated based on the first number of steps ST1.
F1 (ST1) = ST10 = ST1 × α + γ (1)

  Formula (1) is a regression line. α represents a coefficient and γ represents an intercept, which is derived, for example, by applying the least squares method. By setting it as such a first relational expression F1, the cumulative number of steps ST10 in the actual measurement stage becomes equivalent to the second number of steps ST2 higher in accuracy than the first number of steps ST1 based on the first number of steps ST1.

  The correction unit 140 operates only at the measurement stage. The correction unit 140 acquires the first relational expression F1 stored in the storage unit 20 at the measurement stage, and acquires the first step count ST1 from the first counting unit 110, and sets the first step count ST1 to the first relational expression F1. To calculate the cumulative number of steps ST10 in the measurement stage.

  Next, the operation of the mobile terminal 1 will be described. The portable terminal 1 is roughly divided into a function at the preparation stage and a function at the measurement stage as main functions. First, the functions of the portable terminal 1 in the preparation stage will be described using the flowcharts shown in FIGS. 3A and 3B.

  When the power (not shown) of the portable terminal 1 is turned on by the operation from the operation display unit 40, the operation of each unit can be performed. At this time, the sub processor 60 reads the default step counting program 210 from the storage unit 20, and executes the read default step counting program 210. Specifically, 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).

  Next, the main processor 10 reads the step count measurement program 221 from the storage unit 20 by the operation from the operation display unit 40, and starts the read step count measurement program 221. In this activation state, when the mode of the preparation stage is selected by the operation from the operation display unit 40, the function in the preparation stage of the step count measurement program 221 is executed. At the start of the preparation stage, first, the first counting unit 110 resets the first step number ST1 to 0 (ST1 = 0), and the second counting unit 120 resets the second step number ST2 to 0 (ST2 = 0) ( Step S2).

  Subsequently, the first counting unit 110 acquires the number of steps ST0 counted by the default counting unit 610 (step S11), and determines whether a step is detected based on the acquired number of steps ST0 (step S12). If one step is detected (YES in step S12), the first step number ST1 is incremented (step S13). On the other hand, when one step is not detected (NO in step S12), the first step number ST1 is not incremented.

  Further, the second counting unit 120 acquires the acceleration value A output from the acceleration sensor 30 (step S21), and performs filtering processing such as noise removal on the acquired acceleration value A (step S22). Furthermore, the second counting unit 120 determines whether or not one step has been detected based on the acceleration value A subjected to the filtering process (step S23). If one step has been counted (YES in step S23), the second counting unit 120 increments the second step count ST2 (step S24). On the other hand, when one step is not detected (NO in step S23), the second counting unit 120 does not increment the second step count ST2.

  After the process of step S12 by the first counting unit 110 or the process of step S13 and the process of step S24 by the second counting unit 120, the generation unit 130 performs the process illustrated in FIG. 3B.

  The generation unit 130 determines whether a unit time (for example, one hour) has passed since the first step count ST1 and the second step count ST2 are reset (step S31). If the unit time has elapsed (YES in step S31), generation unit 130 determines the first step number ST1 in this unit time incremented by first counting unit 110 and the unit time incremented by second counting unit 120. The second step count ST2 is used as a pair. Then, the generation unit 130 associates the set of the first number of steps ST1 and the second number of steps ST2 with the date and time of the unit time and stores the result in the table 230 of the storage unit 20. Then, the first number of steps ST1 and the second number of steps ST2 Are reset (step S32). On the other hand, if the unit time has not elapsed (NO in step S31), the process returns to step S11 and step S21 to repeat the process.

  Next, the generation unit 130 determines whether a certain period has elapsed since the start of the preparation stage (step S33). If the predetermined period has not elapsed (NO in step S33), the process returns to step S2 and the process is repeated. On the other hand, when the fixed period has elapsed (YES in step S33), generation unit 130 sets a combination of first step count ST1 and second step count ST2 stored in the fixed period from table 230 stored in storage unit 20. Read out. Then, the generation unit 130 generates a first relational expression F1 for estimating the second step ST2 from the first step count ST1 by a statistical method (step S34), and stores the generated first relational expression F1 in the storage unit 20. It memorizes and finishes a series of processing in a preparation stage.

Next, the operation of the portable terminal 1 in the measurement stage will be described using the flowchart shown in FIG. 3C. Here, it is assumed that the activation state of the step count measurement program 221 is maintained.
Even after the processing in the preparation stage is completed, the sub processor 60 continues the process of counting the number of steps ST0 by the default counting unit 610 as in step S1 described in the preparation stage (step 41).

  Next, in the main processor 10, when the step measurement program 221 is activated, and the mode of the measurement step is selected by the operation from the operation display unit 40, the function of the measurement step in the step measurement program 2210 is executed. As the start of the measurement step, first, the first counting unit 110 resets the first step number ST1 to 0 (ST1 = 0) (step S42).

  Next, in the subsequent steps S43 to S45, the process is performed by the first counting unit 110 in the same manner as the process of the steps S11 to S13 by the first counting unit 110 described in the preparation stage, and NO in step S44 or After the process of step S45, the process proceeds to step 46.

  Next, the correction unit 140 determines whether the screen on the operation display unit 40 is being displayed (step S46). If the screen is being displayed (YES in step S46), the first step number ST1 is acquired, the first relational expression F1 stored in the storage unit 20 is read, and the first relational expression F1 is read. ST1 is substituted to calculate the cumulative number of steps ST10 in the measurement stage (step S47).

  Next, the operation display unit 40 displays the cumulative number of steps ST10 in the actual measurement stage calculated by the correction unit 140 (step S48). After NO in step S46 or the process of step S48, the first counting unit 110 determines whether an instruction to end the measurement has been received from the operation display unit 40 (step S49). If the instruction to end the measurement has not been received (NO in step S49), the process returns to step S43 and the process is repeated. On the other hand, when an instruction to end the measurement is received (YES in step S49), the series of processes in the measurement stage is ended.

  According to the first embodiment, in the preparation stage, the first counting unit 110 and the second counting unit 120 are operated to generate the first relational expression F1 indicating the relationship between the first number of steps ST1 and the second number of steps ST2. In the measurement step, the operation of the second counting unit 120 is stopped, and the cumulative step count ST10 is generated using the first step count ST1 measured by the first counting unit 110 and the first relational expression F1. Compared with the first counting unit 110, the second counting unit 120 has a large processing load and a large power consumption, but has a high counting accuracy. Since the first counting unit 110 and the second counting unit 120 are operated at the preparation stage, the power consumption increases, but if only the first counting unit 110 and the correction unit 140 are operated at the measurement stage, the first step number ST1 It is possible to generate the accumulated step count ST10 with higher accuracy than with low power consumption. As a result, the portable terminal 1 can count the number of steps with high accuracy while reducing the power consumption by executing the step number measurement program 221.

Second Embodiment
The step counting program 221 described in the first embodiment does not function to detect continuous walking. On the other hand, the step count measurement program 222 according to the second embodiment functions to count the number of continuous walks NC, and the generation unit 130 performs continuous walk in addition to the first step count ST1 and the second step count ST2. This embodiment differs from the first embodiment in that the relational expression F is generated based on the number of times NC.
In the following, in the second embodiment, the description of similar parts described in the first embodiment is omitted, and different parts will be described.

  The continuous walking means that the user walks continuously without stopping. Moreover, the number of times of continuous walking NC means the number of times a series of continuous walking has been performed. For example, it is assumed that the user walks from home to the postbox, stops for posting, and walks back from the postpost to the unit time when posting a mail. In this case, each of the going walk and the return walk corresponds to continuous walking, and the number N of continuous walkings per unit time is “2”.

  FIG. 4 is a functional block diagram showing the configuration of the portable 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 to obtain the function of the first counting unit 110, the function of the second counting unit 120, the function of the generation unit 130, In addition to the function of the correction unit 140, the function of the continuous gait counting unit 111 is further realized.

  The continuous gait counting unit 111 operates in the preparation stage and the measurement stage. The continuous walking counting unit 111 counts the number NC of continuous walking based on the first number of steps ST1. Specifically, the continuous gait counting unit 111 determines that the state of the user is walking when the first number of steps ST1 increases before reaching a predetermined time (for example, 1 second). On the other hand, when the first step number ST1 does not increase before reaching the predetermined time, the continuous walking counting unit 111 determines that the continuous walking of the user is interrupted and the state of the user is stationary. In this case, the continuous walk counting unit 111 increases the number of continuous walks NC by “1”. The continuous walking counting unit 111 manages state information indicating the state of the user. The state information indicates whether the state of the user is walking or the state of the user is stationary. As described above, the continuous walking counting unit 111 compares the walking time from the timing immediately before the first step count ST1 is updated to the current time with the predetermined time to determine whether the user is walking or the user is stationary. Do.

  The generation unit 130 acquires the number of continuous walks NC counted by the continuous walk counting unit 111. Then, the generation unit 130 generates the relational expression F using the number of continuous walks NC in addition to the first number of steps ST1 and the second number of steps ST2.

In detail, the generation unit 130 determines the time (ST1, ST2, NC) of the first step number ST1 per unit time, the second step number ST2 per unit time, and the number NC of continuous walks per unit time. Storing in the table 230 in association with each other is repeated every unit time.
The generation unit 130 reads the table 230 from the storage unit 20 after a predetermined period has elapsed, and generates the second relational expression F2 by a statistical method (regression analysis). The second relational expression F2 is expressed by the following expression (2).
F2 (ST1, NC) = ST10 = ST1 × α + NC × β + γ (2)

  Formula (2) represents correcting the regression line shown in the above-mentioned Formula (1) by the number of times of continuous walking NC. β is a coefficient of the number of continuous walks NC. As shown in the equation (2), the relational expression F has the first number of steps ST1 and the number of continuous walks NC as variables. In order to calculate the values α, β and γ, the generation unit 130 generates a table (ST1, ST2, NC) of a first number of steps ST1, a second number of steps ST2, and the number NC of continuous walks per unit time. Read multiple from. Then, the generation unit 130 applies, for example, the least squares method to the plurality of sets (ST1, ST2, NC) read out to calculate the values α, β, and γ in Expression (2).

  The correction unit 140 acquires the second relational expression F2 shown in the equation (2) stored in the storage unit 20 in the measurement stage, and acquires the first step number ST1 from the first counting unit 110, and the continuous walking counting unit The number of continuous walks NC is acquired from 111, and the first number of steps ST1 and the number of continuous walks NC are substituted into the second relational expression F2 shown in equation (2) to calculate the cumulative number of steps ST10 in the measurement stage. That is, the cumulative number of steps ST10 estimated to be counted by the second counting unit 120 is obtained.

  Next, the operation of the mobile terminal 1 according to the second embodiment will be described. FIG. 5A and FIG. 5B are flowcharts illustrating the operation of the mobile terminal 1 in the preparation phase of the second embodiment. In contrast to the process relating to the step count measurement program 221 described in the first embodiment, in the process relating to the step count measurement program 222 according to the second embodiment, as shown in FIG. 5A, steps S14 to S19 are provided after step S13. ing.

  If the determination result in step S12 is affirmative, one step is detected, and the first step count ST1 is incremented, the continuous walking counting unit 111 resets the walking time (step S14). The walking time indicates the time from when the previous step is detected to the present time. The long walking time means that it takes time until the next step. Thereafter, the continuous walking counting unit 111 sets state information while walking (step S15).

  Next, the continuous walking counting unit 111 determines whether the state information indicates walking (step S16). When the state information indicates that the user is walking (YES in step S16), the continuous walking counting unit 111 determines whether the walking time has exceeded 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 of continuous walkings NC (step S18), and sets the state information to be stationary (step S19).

  If the determination result in step S16 is negative and the state information indicates stationary (NO in step S16), if the determination result in step S17 is negative and the walking time does not exceed the predetermined time (NO in step S17), step S19 is If completed, if the determination result in step S23 is negative and one step is not detected (NO in step S23), or if the process in step S24 ends, the generation unit 130 generates the first number of steps ST1 and the second number of steps ST2. It is determined whether a unit time (for example, one hour) has passed since the reset of. If the unit time has elapsed (YES in step S26), the generation unit 130 sets a combination of the first number of steps ST1 and the second number of steps ST2 and the number of continuous walks NC in this unit time to the date and time in the unit time. After associating and storing in the table 230 of the storage unit 20, the first step count ST1, the second step count ST2, and the number of continuous walks NC are reset (step S27).

  When the process of step S27 ends or the determination result of step S26 is negative (NO in step S26), generation unit 130 determines whether or not a certain period has elapsed from the start of the preparation stage (step S28). If the fixed period has not elapsed (NO in step S28), the process is returned to step S21 and step S11.

  When the fixed period has elapsed from the start of the preparation stage (YES in step S28), the generation unit 130 generates the first step count ST1 and the second step count ST2 stored in the fixed period from the table 230 stored in the storage unit 20. The number of continuous walks NC is read out. Then, the generation unit 130 generates a second relational expression F2 for estimating the second ST2 from the first STOT number and the number of continuous walks NC by the statistical method (step S29), and stores the second relational expression F2. It memorize | stores in the part 20 and complete | finishes a series of processes in a preparation stage.

  Next, the operation of the mobile terminal 1 at the measurement stage in the second embodiment will be described. FIG. 5C is a flowchart showing an example of the operation of the mobile terminal 1 in the 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 that step S43b is executed instead of steps S43 to S45 and step S47b is executed instead of step S47. is there. The differences will be described below.

  In step S43b, the first step number ST1 and the number of continuous walks NC are counted. This process is similar to steps S11 to S19 described with reference to FIG. 5A. Further, in step S47b, the correction unit 140 substitutes the first number of steps ST1 and the number of continuous walks NC into the second relational expression F2 read from the storage unit 20 to calculate the cumulative number of steps ST10 in the measurement stage.

  In the second embodiment, since the cumulative number of steps ST10 is further calculated using the second relational expression F2 in consideration of the number of continuous walks, the power consumption of the main processor 10 and thus the portable terminal 1 can be reduced. The number of steps can be counted with higher accuracy than in the embodiment.

Third Embodiment
In the function implemented by the step count measurement program 222 described in the second embodiment, when the user is on a vehicle, vibrations generated in the vehicle may be erroneously measured as the number of steps. On the other hand, the function realized by the step count measurement program 223 of the third embodiment determines whether or not the user is on a vehicle, and applies the first speed relationship formula F31 applied when the moving speed is low. The second embodiment is different from the second embodiment in that a second velocity relationship F32 applied when the moving velocity is high is generated.
Hereinafter, in the third embodiment, the description of similar parts described in the second embodiment will be omitted, and different parts will be described.

  FIG. 6 is a functional block diagram of the portable terminal 1 in the third embodiment. The third embodiment differs from the second embodiment in the following points. First, 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 to obtain the functions of the first counting unit 110, the functions of the second counting unit 120, and the generation unit. In addition to the function of 130 and the functions of the continuous walking counting unit 111 and the correcting unit 140, the function of the specifying unit 112 for specifying the magnitude of the moving speed is further realized. Second, the current moving speed V is acquired from the specifying unit 112, and the generating unit 130 generates a first speed relation F31 and a second speed relation F32 based on the movement speed V. Thirdly, the correction unit 140 corrects the first number of steps ST1 using the first speed relationship formula F31 and the second speed relationship formula F32 in consideration of the moving speed V, and generates the cumulative number of steps ST10.

  The identifying unit 112 operates in the preparation stage and the measurement stage. The identifying unit 112 identifies the moving velocity V of the user. The identifying unit 112, for example, acquires acceleration values A in the directions of three axes from the acceleration sensor 30, and calculates the moving velocity V of the user using the acquired acceleration values A.

The moving speed V may be calculated by any method. For example, the identifying unit 112 combines 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 to calculate the magnitude | A | of the acceleration value (| A | = (AX ² + AY ² + AZ ² ) ^1/2 ). Then, the identifying unit 112 integrates the calculated magnitude | A | of the acceleration value with respect to time, calculates the moving speed V, and generates the cumulative number of steps ST10.

  The generation unit 130 determines whether the user is not in the vehicle or in the vehicle, and generates the first velocity relationship F31 and the second velocity relationship F32. Specifically, the generation unit 130 acquires the current moving speed V from the identification unit 112. Then, based on the current moving speed V, the generation unit 130 divides the second relational expression F2 shown in Expression (2) into a first speed relational expression F31 and a second speed relational expression F32 and generates the same. The first velocity relational expression F31 is an expression that is applied when the current moving velocity V is less than the reference value Vref. The second velocity relational expression F32 is an expression that is applied when the current moving velocity 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. The speed of 8 km / h is a value determined based on being faster than the walking speed and generally slower than the speed of the bicycle.

  If the current moving speed V is less than the reference value Vref, the generation unit 130 determines that the user is in the first state W in which the user is not on a vehicle. In other words, the first state W is a state of walking or running. On the other hand, when the current moving speed V is equal to or higher than the reference value Vref, the generation unit 130 determines that the user is in the second state TR in which the user is on the vehicle. Then, the generation unit 130 sets a first number of steps ST1, a second number of steps ST2 and a number NC of continuous walks (ST1, ST1) based on the current moving speed V until a predetermined period (for example, one week) elapses. Storing ST2, NC) and the first state W or the second state TR in the table 230 in association with the date and time zone is repeated every unit time.

  FIG. 7 is a diagram showing an example of the table 230 in the third embodiment. For example, the first row of the table 230 is a set of the first number of steps ST1, the second number of steps ST2, and the number of continuous walks NC (ST1, ST2) in the time zone from 8:00 to 9:00 on June 1, 2016 , NC) is associated with the first state W. In the sixth row of the table 230, the first step number ST1 is 1241 steps in the time zone from 13:00 to 14:00, 120 steps of which are associated with the first state W, and the remaining 1121 steps are It shows that it is associated with the 2 state TR. Similarly, it is shown that 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. Note that, as shown in the third row of the table 230, when both the first step count ST1 and the second step count ST2 are 0, the generation unit 130, for example, sets a pair (ST1, ST1) corresponding to NA (Not Applicable). Associate with ST2, NC).

  After a certain period of time has elapsed, the generation unit 130 generates a first velocity relationship F31 using the set associated with the first state W, and uses the set associated with the second state TR for the second. Generate a velocity relational expression F32. Specifically, after a certain period of time has elapsed, the generation unit 130 extracts a plurality of sets (ST1, ST2, NC) associated with the first state W from the table 230, and uses a statistical method (regression analysis). The plurality of extracted sets are used to generate a first velocity relationship F31. Similarly, the generation unit 130 extracts a plurality of sets (ST1, ST2, NC) associated with the second state TR from the table 230, and uses the plurality of sets extracted by the statistical method (regression analysis). A second velocity relation F32 is generated.

The first velocity relationship F31 applied to the first state W in which the user is not in a vehicle is expressed by the following equation (3). On the other hand, the second velocity relation F32 applied to the second state TR in which the user is in a vehicle is expressed by the following equation (4).
F31 (ST1, NC) = ST10 = ST1 × α ₁ + NC × β ₁ + γ ₁ (3)
F32 (ST1, NC) = ST10 = ST1 × α ₂ + NC × β ₂ + γ ₂ (4)

In Formula (3) and Formula (4), (alpha) ₁ and (alpha) ₂ are coefficients of 1st step number ST1. β ₁ and β ₂ are coefficients of the number of continuous walks NC. γ ₁ and γ ₂ are sections. In order to determine α ₁ , β ₁ and γ ₁ , the generation unit 130 applies the least squares method to the set associated with the first state W. Similarly, in order to obtain α ₂ , β ₂ and γ ₂ , the generation unit 130 applies the least squares method to the set associated with the second state TR.

  The correction unit 140 selects one of the first velocity relational expression F31 and the second velocity relational expression F32 stored in the storage unit 20 at the actual measurement stage based on the current moving velocity V, and also selects the first counting unit 110. The first step number ST1 is acquired from the second step, the number of continuous walks NC is obtained from the continuous walk counting unit 111, and the first step number ST1 and the number of continuous walks NC are substituted into the selected relational expression The cumulative number of steps ST10 is calculated. That is, the cumulative number of steps ST10 estimated to be counted by the second counting unit 120 is obtained. Specifically, the correction unit 140 acquires the current moving speed V from the identification unit 112 at the measurement stage, acquires the first step number ST1 from the first counting unit 110, and continuously walks from the continuous walking counting unit 111. Get the number of times NC. Then, if the obtained current moving speed V is less than the reference value Vref, the correction unit 140 determines that the user is in the first state W not riding on a vehicle, selects the first speed relationship formula F31, The acquired first step number ST1 and the number of continuous walks NC are substituted into the selected first velocity relational expression F31 to calculate the cumulative number of steps ST10 in the actual measurement stage. On the other hand, when the current moving speed V is equal to or higher than the reference value Vref, the correction unit 140 determines that the user is in the second state TR in the vehicle, selects the second speed relationship formula F32, and selects this The accumulated first step number ST1 and the number of continuous walks NC are substituted into the two-speed relational expression F32 to calculate the cumulative step number ST10 in the actual measurement stage.

  FIG. 8A is a graph illustrating the relationship between the first step count ST1 counted by the first counting unit 110 and the second step count 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 in a vehicle. A black circle symbol indicates a set (ST1, ST2, NC) associated with the second state TR in which the user is in the vehicle. The dotted line indicates virtually the case where the first number of steps ST1 matches the second number of steps ST2.

  A plurality of sets indicated by square symbols are distributed slightly offset from the dotted line. The cause of this deviation is considered to be due to the way the user walks. A plurality of sets indicated by black circle symbols are distributed largely 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 cumulative number of steps ST10 corrected by the correction unit 140 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 in a vehicle. A black circle symbol indicates a set (ST1, ST2, NC) associated with the second state TR in which the user is in the vehicle. The dotted line indicates virtually the case where the first number of steps ST1 matches the second number of steps ST2.

  As shown in FIG. 8B, the sets (ST1, ST2, NC) associated with the first state W in which the user is not on a vehicle are distributed substantially along the dotted line. Moreover, the miscounting of the set (ST1, ST2, NC) associated with the second state TR in which the user is on the vehicle is improved. Thus, it can be seen that the number of steps is counted with higher accuracy.

  In the third embodiment, since the cumulative number of steps ST10 is determined using the first speed relation F31 and the second speed relation F32 based on the moving speed V, the power consumption of the main processor 10 and thus the portable terminal 1 is reduced. However, the number of steps can be counted with higher accuracy than in the first and second embodiments.

<Modification>
Although the embodiment has been described as an example of the present invention, the present invention is not limited to this, and various modifications described below are possible. Furthermore, two or more aspects arbitrarily selected from the following exemplifications may be appropriately combined as long as there is no technical contradiction.

(1) In each embodiment mentioned above, although a relational expression was generated on condition that fixed period passes, the present invention is not limited to this. For example, when the number of samples necessary to generate the relational expression F is stored in the table 230, the preparation stage may be shifted to the measurement stage. Also, the user may input the period of preparation phase.

(2) In the above-described embodiments, the function of the default counting unit 610 is realized in the sub processor 60. However, the function of the default counting unit 610 may be realized in the acceleration sensor 30. Specifically, in FIG. 1, the default counting unit 610 is provided as a part of the acceleration sensor 30, reads the default step counting program 210 from the storage unit 20, and executes the read default step counting program 210. Then, the default counting unit 610 counts the number of steps ST0 based on the acceleration value A detected by the acceleration sensor 30 in the preparation stage and the measurement stage, and outputs it to the first processor 110 or the first counting unit 110 of the main processor 10. Also good.

(3) In the above-described embodiments, 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. What is necessary is just to be able to acquire the walking information regarding the walking of The walk information includes a signal indicating that the number of steps has increased by "1", in addition to the number of steps ST0. For example, an interrupt signal generated each time the sub processor 60 detects a step corresponds.
When the first counting unit 110 detects an interrupt signal as walking information, the first counting unit 110 detects a step (step S12 shown in FIG. 3A).

(4) In each embodiment mentioned above, using the acceleration sensor 30, 1st step ST1 and 2nd step ST2 were counted. The first step number ST1 and the second step number ST2 may be counted using a gyro sensor in combination with the acceleration sensor 30. In this case, the gyro sensor is connected to the sub processor 60, and detects angular velocity ω in three axes, that is, angular velocity ωX around the X axis, angular velocity ωY around the Y axis, and angular velocity ωZ around the Z axis. The default counting unit 610 counts the number of steps ST0 using the angular velocity ω in three axes in addition to the acceleration value A in the three axial directions. Similarly, the second counting unit 120 also counts the first number of steps ST1 using the angular velocity ω in three axes in addition to the acceleration value A in the three axial directions.

(5) In the third embodiment described above, the current moving speed V is calculated based on the acceleration value A in the three axis directions. Alternatively, the current moving speed V may be calculated based on the current position acquired by GPS (Global Positioning System). In this case, the specifying unit 112 may calculate the time change of the position.

(6) In the third embodiment described above, the first velocity relation F31 and the second velocity relation F32 are generated in consideration of the number of continuous walks NC, but the present invention is not limited to this. The first speed relationship formula F31 and the second speed relationship formula F32 may be generated based on the first number of steps ST1 and the second number of steps ST2.
In this case, the first velocity relation F31 applied to the first state W in which the user is not in a vehicle is expressed by the following equation (5). On the other hand, the second velocity relation F32 applied to the second state TR in which the user is in a vehicle is expressed by the following equation (6).
F31 (ST1) = ST1 × α ₁ + γ ₁ (5)
F32 (ST1) = ST1 × α ₂ + γ ₂ (6)

DESCRIPTION OF SYMBOLS 1 ... Portable terminal, 10 ... Main processor, 20 ... Storage part, 30 ... Acceleration sensor, 40 ... Operation display part, 50 ... Communication part, 60 ... Subprocessor, 110 ... 1st counting part, 120 ... 2nd counting part, 130: generation unit, 140: correction unit, 111: continuous walking counting unit, 112: identification unit, 210: default step counting program, 221, 222, 223: step counting program, 230: table, 610: default counting unit.

Claims (8)

A step count measurement program to be executed by a processor,
The processor,
A first counting unit that acquires walking information about the user's walking generated based on an acceleration value output from an acceleration sensor, and outputs a first number of steps indicating the number of steps accumulated from a predetermined timing based on the acquired walking information When,
A second counting unit that acquires the acceleration value and outputs a second step number indicating the number of steps accumulated from the predetermined timing based on the acquired acceleration value;
A generation unit configured to generate a relational expression indicating a relationship between at least the first number of steps and the second number of steps based on the first number of steps and the second number of steps;
It functions as a correction unit that outputs an accumulated number of steps based on the first number of steps and the relational expression.
Step count measurement program. In preparation for measuring the number of steps,
Function as the first counting unit, the second counting unit, and the generation unit;
In the measurement step to measure the number of steps, the processor,
Function as the first counting unit and the correction unit;
The step count measurement program according to claim 1. In the preparation phase,
Furthermore, it functions as a continuous gait counting unit that counts the number of consecutive gaitings,
The relational expression indicates a relationship between the first number of steps, the second number of steps, and the number of continuous walks;
The generation unit generates the relational expression based on the first number of steps, the second number of steps, and the number of continuous walks,
The processor is
Further, it functions as the continuous gait counting unit,
The correction unit outputs a cumulative number of steps based on the first number of steps, the number of times of continuous walking, and the relational expression.
The step count measurement program according to claim 2.   The continuous gait counting unit compares the walking time from the timing immediately before the first number of steps is updated to the current time with a predetermined time to determine whether the user is walking or whether the user is stationary. The step count measurement program according to claim 3, wherein the number of continuous walking is counted based on the result. In the preparation phase,
Furthermore, it functions as an identifying unit that identifies the moving speed of the user,
The generation unit is
Acquire the moving speed identified by the identifying unit;
The relational expression is generated by being divided into a first velocity relational expression to be applied when the moving velocity is high and a second velocity relational expression to be applied when the moving velocity is low,
The processor is
Further, it functions as the identification unit,
The correction unit acquires the moving speed from the specifying unit, selects one of the first speed relation formula and the second speed relation formula based on the movement speed, and selects the selected relation formula and the first number of steps. Output the cumulative number of steps based on
The step count measurement program according to any one of claims 2 to 4. The processing load of the first counting unit is lighter than the processing load of the second counting unit,
The accuracy of the second number of steps is higher than the accuracy of the first number of steps,
The number-of-steps measurement program according to any one of claims 2 to 5. An acceleration sensor that outputs an acceleration value,
A sub processor that generates walking information related to the walking of the user based on the acceleration value output from the acceleration sensor;
A first counting unit that counts a first number of steps indicating the number of steps accumulated from a predetermined timing based on the walking information;
A second counting unit that counts a second number of steps indicating the number of steps accumulated from the predetermined timing based on the acceleration value;
A generation unit that generates a relational expression indicating a relationship between the first number of steps and the second number of steps based on the first number of steps and the second number of steps;
A correction unit that outputs an accumulated number of steps based on the first number of steps and the relational expression;
Mobile terminal equipped with The first counting unit and the correcting unit are operated in the measurement step of measuring the number of steps by operating the first counting unit, the second counting unit, and the generating unit in the preparation step of measuring the number of steps. Item 8. A portable terminal according to item 7.

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