JP2021057055A - Number-of-steps measurement program and portable terminal - Google Patents

Abstract

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 a cumulative number of steps ST10.SELECTED DRAWING: Figure 1

Description

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

Smartphones with the function of counting the number of steps are provided. Such smartphones count steps based on changes in acceleration that occur in the smartphone itself.

In the above-mentioned smartphone, for example, when the user moves with a slippery foot, a small change in acceleration cannot be captured, and the slippery foot may not be counted in the number of steps. As a result, the number of steps is counted less than the actual number. Therefore, there is known a technique for improving the measurement accuracy of the number of steps by counting the number of steps in consideration of the walking characteristics of the user (Patent Document 1).

Japanese Patent No. 5310742

However, when the processing technology for considering the walking characteristics of the user disclosed in Patent Document 1 is to be realized on a smartphone, the CPU (Central Processing Unit) mounted on the smartphone considers the walking characteristics of the user. There is a problem that the load on the CPU increases because the processing for doing so must be performed. As a result, there is a problem that the battery of the smartphone is consumed quickly.

The present invention has been made in view of the above circumstances, and one of the problems to be solved is to provide a step count measuring program and a mobile terminal that count the number of steps with high accuracy while reducing power consumption.

In order to solve the above problems, one aspect of the step count measuring program according to the present invention is a step count measuring program to be executed by a processor, and 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 and outputs the first step count indicating the number of steps accumulated from a predetermined timing based on the acquired walking information, and the acceleration value acquired by acquiring the acceleration value. Based on the second counting unit that outputs the second step count indicating the number of steps accumulated from the predetermined timing based on the above, and the relationship between the first step count and the second step count based on the first step count and the second step count. It functions 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 step count and the relational expression.

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

In one aspect of the step count measurement program described above, the processor is made to function as the first counting unit, the second counting unit, and the generating unit in the preparatory stage for measuring the number of steps, and in the actual measurement stage for measuring the number of steps. It is preferable that the processor functions as the first counting unit and the correction unit.

According to this aspect, the element that functions in the preparatory stage and the element that functions in the actual measurement stage can be made different, and the functions of the second counting unit and the generating unit are stopped in the actual measurement stage. Therefore, it is possible to reduce the processing load in the actual measurement stage and count the number of steps with high accuracy while reducing the power consumption.

In one aspect of the step count measurement program described above, in the preparatory stage, the processor further functions as a continuous walking counting unit that counts the number of continuous walking, and the relational expression is the first step number, the second step number, and the like. And the relationship of the number of times of continuous walking, 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 in the actual measurement stage, the processor is used. Further, it is preferable that the continuous walking counting unit functions as the continuous walking counting unit, and the correction unit outputs the cumulative number of steps based on the first step number, the number of continuous walking times, and the relational expression.

According to this aspect, the cumulative number of steps can be generated in consideration of the number of continuous walks. When walking a certain distance, if the number of continuous walks is large, walking and rest are repeated, while if the number of continuous walks is small, the time to continue walking becomes long. Therefore, the number of continuous walks indicates the mode of walking. According to this aspect, since the cumulative number of steps is generated in consideration of the walking mode, the accuracy of the cumulative number of steps can be further improved as compared with the case where the number of continuous walkings is not considered while reducing the power consumption. ..

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

According to this aspect, when the predetermined time elapses from the update of the number of steps, it is determined that the user is stationary, so that the number of continuous walks can be counted based on the determination result. Further, by adjusting the predetermined time, it is possible to improve the accuracy of the number of continuous walks. Therefore, while reducing the power consumption, the accuracy of the cumulative number of steps can be further improved as compared with the case where the number of continuous walks is not taken into consideration.

One aspect of the step count measurement program described above causes the processor to further function as a specific unit for specifying the movement speed of the user in the preparation stage, and the generation unit acquires the movement speed specified by the specific unit. The relational expression is generated separately as a first speed relational expression applied when the moving speed is large and a second speed relational expression applied when the moving speed is small, and the processor is generated in the actual measurement stage. Further, it functions as the specific unit, and the correction unit acquires the moving speed from the specific unit and selects either the first speed relational expression or the second speed relational expression based on the moving speed. It is preferable to output the cumulative number of steps based on the selected relational expression and the first number of steps.

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

In one aspect of the step count measurement program described above, the processing load of the first counting unit is lighter than that of the second counting unit, and the accuracy of the second step is compared with the accuracy of the first step. It is preferable that the price is high.

According to this aspect, in the preparatory stage for generating the relational expression, the second counting unit having high accuracy but heavy processing load is used, but in the actual measurement stage after generating the relational expression, the processing load is light and the power consumption is low. The first counting unit is used to generate the cumulative number of steps. Therefore, in the actual measurement stage, the accuracy of the cumulative number of steps can be improved while reducing the 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 subprocessor that generates walking information regarding the user's walking based on the acceleration value output from the acceleration sensor, and the walking information. A first counting unit that counts the first step count indicating the number of steps accumulated from the predetermined timing, a second counting unit that counts the second step count indicating the number of steps accumulated from the predetermined timing based on the acceleration value, and the first counting unit. Based on the number of steps and the second step, a generation unit that generates a relational expression showing the relationship between the first step and the second step, and an output of the cumulative number of steps based on the first step and the relational expression. It is provided with a correction unit.

According to one aspect of the mobile terminal described above, since the first step count is performed using the walking information generated by the subprocessor, the first step count can be easily counted. In addition, the generation unit generates a relational expression between the first step count and the second step count. Since the correction unit corrects the cumulative number of steps using the relational expression, the cumulative number of steps can be brought closer to the second step number. As a result, after the relational expression is generated, it is possible to generate a highly accurate cumulative number of steps by operating only the first counting unit without operating the second counting unit. Therefore, it is possible to count the number of steps with high accuracy while reducing the power consumption.

In one aspect of the mobile terminal described above, in the preparatory stage for measuring the number of steps, the first counting unit, the second counting unit, and the generating unit are operated, and in the actual measurement stage for measuring the number of steps, the first counting unit is used. And it is preferable to operate the correction unit.

According to this aspect, the element that functions in the preparatory stage and the element that functions in the actual measurement stage can be made different, and the functions of the second counting unit and the generating unit are stopped in the actual measurement stage. Therefore, the processing load in the actual measurement stage can be reduced and the power consumption can be reduced.

It is a functional block diagram which shows the structure of the mobile terminal 1 in 1st Embodiment. It is a figure which shows an example of the storage contents of the table 230 in 1st Embodiment. It is a flowchart which illustrates the operation of the mobile terminal 1 in the preparation stage in 1st Embodiment. It is a flowchart which illustrates the operation of the mobile terminal 1 in the preparation stage in 1st Embodiment. It is a flowchart which illustrates the operation of the mobile terminal 1 in the actual measurement stage in 1st Embodiment. It is a functional block diagram which shows the structure of the mobile terminal 1 in 2nd Embodiment. It is a flowchart which illustrates the operation of the mobile terminal 1 in the preparation stage in 2nd Embodiment. It is a flowchart which illustrates the operation of the mobile terminal 1 in the preparation stage in 2nd Embodiment. It is a flowchart which illustrates the operation of the mobile terminal 1 in the actual measurement stage in 2nd Embodiment. It is a functional block diagram of the mobile terminal 1 in 3rd Embodiment. It is a figure which shows an example of the storage contents of the table 230 in 3rd Embodiment. It is a graph which illustrates the relationship between the 1st step number ST1 and the 2nd step number ST2. It is a graph which illustrates the relationship between the cumulative step number ST10 and the 2nd step number ST2.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. Moreover, the embodiment described below is a preferable specific example of the present invention. For this reason, the present embodiment is provided with various technically preferable limitations. However, the scope of the present invention is not limited to these forms unless it is stated in the following description that the present invention is particularly limited.

<First Embodiment>
FIG. 1 is a functional block diagram showing the configuration 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. For example, the mobile 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 time counting, calculation and control, and realize various functions of the main processor 10. In particular, the main processor 10 realizes the functions of the first counting unit 110, the functions of the second counting unit 120, the functions of the generating unit 130, and the functions of the correction unit 140.

Although the details will be described later, the step count measurement program 221 has different functions to be realized in the step count measurement in the preparation stage where the processing load is heavy and the actual measurement stage where the processing load is light. In the preparatory stage, the main processor 10 substantially simultaneously (including simultaneously) the first counting unit 110 that outputs the first step count ST1 with low accuracy and the second counting unit 120 that outputs the second step count ST2 with high accuracy. The generation unit 130 generates the first relational expression F1 showing the relationship between the first step number ST1 and the second step number ST2. On the other hand, in the actual measurement stage, the first counting unit 110 and the correction unit 140 are operated, and the first step number ST1 counted by the first counting unit 110 is corrected by using the first relational expression F1 and the number of steps is output. Further, the main processor 10 is, for example, hardware such as a CPU, an MPU (Micro Processor Unit), and an MCU (Memory Control Unit).

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. Further, the storage unit 20 includes a non-volatile memory and a 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 has a default step counting program 210 for functioning the sub-processor 60, a step counting program 221 for functioning the main processor 10, and a first relational expression for obtaining the cumulative step number ST10 in the actual measurement stage. The F1 and the table 230 for storing the measurement results such as the first step number ST1 and the second step number ST2 obtained by the main processor 10 are stored.

The storage unit 20 is, for example, a non-transitory storage medium. Furthermore, the storage unit 20 is a storage medium of any known type, for example, 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. In the present specification, the non-transient storage medium includes all computer-readable storage media except for transient propagation signals, and does not exclude volatile storage media. Absent.

The acceleration sensor 30 is, for example, a 3-axis acceleration sensor. The acceleration sensor 30 has an acceleration value A in the three-axis direction caused by walking (including running), 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. Detects the value AZ. The acceleration sensor 30 outputs the detected acceleration value A in the three axial directions to the subprocessor 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 capacitance type touch panel. The operation display unit 40 has the functions of both an input device and a display device. As a function of the input device, the operation display unit 40 detects the activation of the step count measurement program 221 and various settings by receiving a touch operation by the user, and outputs the detection result to the main processor 10 as instruction information of the user. As a function of the display device, the operation display unit 40 displays the output result (for example, setting result information and measurement result) by the main processor 10 according to the instruction of the main processor 10. In addition, instead of the operation display unit 40, the mobile terminal 1 may have an input device (a plurality of buttons including a numeric keypad) and a display device separately. Further, 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 the outside of the mobile terminal 1. Specifically, the communication unit 50 makes voice communication with the mobile terminal of the call destination via, for example, the base station of the cell in which the mobile terminal 1 is located. Further, the communication unit 50 connects to the Internet line via the base station of the cell in which the mobile terminal 1 is located, communicates with the server device, and downloads the step count measurement program 221. Further, the communication unit 50 connects to the 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 subprocessor 60 reads 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. The subprocessor 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. Further, 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 subprocessor 60 including the default counting unit 610 plays a role of assisting the main processor 10 and a role of executing a part of the processing of the main processor 10. Therefore, the sub-processor 60 may have a lower processing capacity than the main processor 10. On the other hand, the sub-processor 60 operates with a power consumption lower than that of the main processor 10. The subprocessor 60 is composed of hardware such as a CPU, an MPU, and an MCU, for example.

Next, the functions realized by the default step counting program 210 will be described. The default counting unit 610 is in the preparatory stage for measuring the number of steps (the process of generating the first relational expression F1 for obtaining the number of steps in the actual measurement stage) and the actual measurement stage for measuring the number of steps (measured using the first relational expression F1). It works in the process of finding the number of steps in a 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 power of the mobile terminal 1 was turned on and the default step counting program 210 was started.

Next, the functions realized by the step count measurement program 221 will be described. 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. Next, the first counting unit 110 generates the first step count ST1 that has been cumulatively processed from a predetermined timing based on the acquired step count ST0. Specifically, the first counting unit 110 detects one step based on the acquired step count ST0, and accumulates the number of detections each time the step is detected to obtain the first step count ST1. Here, the predetermined timing is the timing at which the counting of the number of steps is started. For example, the timing at which the step count measurement program 221 is started and the user inputs the start of step count measurement is a predetermined timing. Alternatively, if the step count measurement program 211 starts the measurement at the same time as the start, the timing at which the step count measurement program 211 is started is a predetermined timing.

The acquisition of the number of steps ST0 by the first counting unit 110 is executed by transmitting an acquisition request to the subprocessor 60. In this example, when the step count program 221 is executed, the main processor 10 transmits an acquisition request to the subprocessor 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.

It is assumed that the number of steps ST0 acquired at the nth timing is represented by ST0 (n). When the current timing is the nth, the first counting unit 110 compares ST0 (n) and ST0 (n-1), and when ST0 (n) -ST0 (n-1) is "1". , Detects that the user has taken a step forward. 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 at a high frequency of 16 times per second, it is possible to reliably detect that the user has taken one step.

The second counting unit 120 operates only in the preparatory stage. First, the second counting unit 120 acquires the acceleration value A output from the subprocessor 60 in the preparation stage. Next, the second counting unit 120 counts the second step count ST2, which indicates the number of steps accumulated from the predetermined timing described above, based on the acquired acceleration value A. In other words, the second counting unit 120 detects one step based on the acquired acceleration value A, and accumulates the number of detections each time the step is detected to obtain the second step number ST2. The second counting unit 120 can also generate the second step number ST2 by 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 coincide with the timing when the first counting unit 110 acquires the step count ST0 and the timing when the second counting unit 120 acquires the acceleration value A. (Including simultaneous), the interval is shorter than the interval that is almost 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 based on the acceleration value A by the default counting unit 610 is the maximum value and the minimum value 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. The difference from the value is obtained, one step is detected when the difference between the maximum value and the minimum value of the acceleration value in any axial direction is equal to or larger than the threshold value, and the number of detections is accumulated to generate the number of steps ST0.

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, the acceleration value AY in the Y-axis direction, and the acceleration value AZ in the Z-axis direction are combined. Then, the absolute value | A | of the acceleration value in the three-axis direction is calculated (| A | = (AX ² + AY ² + AZ ² ) ^1/2 ). Further, in this process, when the difference between the maximum value and the minimum value of the absolute value | A | of the acceleration value in the three-axis direction is equal to or more than the threshold value and the difference is within a certain time, one step is detected and detected. The number of times is accumulated to generate the second step number ST2.

Further, 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 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, the acceleration value AY in the Y-axis direction, and the Z-axis direction obtained from the acceleration sensor 30. The acceleration value AZ of the above is subjected to a filtering process for removing a noise component, and the second step number ST2 is generated based on the acceleration value AX, the acceleration value AY and the acceleration value AZ after the filtering process.

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

The unit time refers to each of a plurality of divided hours divided into a plurality of times in a day. For example, if the time of the day is divided into 24 equal parts, the unit time is one hour. Of course, the unit time may be 30 minutes. Further, 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. This is because even the same user tends to walk differently depending on the time of day. For example, one step when doing household chores at home is often smaller than one step when walking outside. For that reason, the number of steps taken when doing household chores tends to include errors. By making the unit time shorter than one day, the characteristics of the user's walking style can be reflected in the first relational expression F1.

The function of the generation unit 130 will _{be described more specifically by setting a certain time as t n-1} , the current time when a unit time has passed from a certain time t _{n-1, as t n,} and expressing n as an arbitrary natural number. ..
First, in the preparation stage, the generation unit 130 acquires the first step count ST1 from the first counting unit 110 and the second step count ST2 from the second counting unit 120 until a unit time elapses from _{a certain time t n-1.} Is acquired, and the first step number ST1 and the second step number ST2 acquired in this unit time are paired and stored in the table 230 in association with the date and time zone. After that, in the preparation stage, 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 for a certain period of time.

Here, the function of the generation unit 130 will be described in more detail with reference to FIG. 2, which shows 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 shows that the first step number ST1 was 62 steps and the second step number ST2 was 10 steps in the time zone from 8:00 to 9:00 on June 1, 2016. Shown. As of 8:00 on June 1, 2016, the first step count ST1 in the first counting unit 110 is reset to 0, and the second step count ST2 in the second counting unit 120 is also reset to 0. The generation unit 130 acquires the first step number ST1 = 62 and the second step number ST2 = 10 at 9:00 on June 1, 2016. The generation unit 130 stores the first step number ST1 = 62 and the second step number ST2 = 10 in the table 230 in association with June 1, 2016 and the time zone from 8:00 to 9:00.

As described above, in the preparation stage, the generation unit 130 stores the pair 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. To do. A certain period of time is set so that the characteristics of the user's walking style can be fully grasped from a practical point of view. For example, a fixed period is one week. However, from the viewpoint of improving the accuracy of the first relational expression F1, the larger the number of pairs of the first step number ST1 and the second step number ST2, the more preferable, so that the fixed period may exceed one week.

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

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

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

The correction unit 140 operates only in the actual measurement stage. The correction unit 140 acquires the first relational expression F1 stored in the storage unit 20 at the actual measurement stage, acquires the first step number ST1 from the first counting unit 110, and obtains the first step number ST1 in the first relational expression F1. Is substituted to obtain the cumulative number of steps ST10 in the actual measurement stage.

Next, the operation of the mobile terminal 1 will be described. The mobile terminal 1 is roughly classified into a function in the preparation stage and a function in the actual measurement stage as a main function. First, the function of the mobile terminal 1 in the preparation stage will be described with reference to the flowcharts shown in FIGS. 3A and 3B.

When the power supply (not shown) of the mobile terminal 1 is turned on by the operation from the operation display unit 40, the operation of each unit can be executed. At this time, the subprocessor 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 activates the read step count measurement program 221. When the mode of the preparation stage is selected by the operation from the operation display unit 40 in this activated state, the function of the preparation stage in the step count measurement program 221 is executed. As the start of the preparatory 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) (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 or not one step has been detected based on the acquired number of steps ST0 (step S12). When one step is detected (YES in step S12), the first step number ST1 is incremented (step S13). On the other hand, if 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). Further, 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). When one step is counted (YES in step S23), the second counting unit 120 increments the second step number ST2 (step S24). On the other hand, if one step is not detected (NO in step S23), the second counting unit 120 does not increment the second step number ST2.

After the processing of NO or step S13 in step S12 by the first counting unit 110 and the processing of NO or step S24 in step S23 by the second counting unit 120, the generation unit 130 executes the processing 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 number ST1 and the second step number ST2 were reset (step S31). When the unit time has elapsed (YES in step S31), the generation unit 130 in the first step count ST1 in this unit time incremented by the first counting unit 110 and in this unit time incremented by the second counting unit 120. The second step number ST2 is paired. Then, the generation unit 130 associates the pair of the first step number ST1 and the second step number ST2 with the date and time in the unit time, stores it in the table 230 of the storage unit 20, and then stores the first step number ST1 and the second step number ST2. Is 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, and the process is repeated.

Next, the generation unit 130 determines whether or not a certain period of time has elapsed from the start of the preparation stage (step S33). If a certain period of time has not passed (NO in step S33), the process returns to step S2 and the process is repeated. On the other hand, when a certain period of time has passed (YES in step S33), the generation unit 130 sets the first step number ST1 and the second step number ST2 stored in the storage unit 20 from the table 230 stored in the storage unit 20. Is read. Then, the generation unit 130 generates the first relational expression F1 for estimating the second step number ST2 from the first step number ST1 by a statistical method (step S34), and stores the generated first relational expression F1 in the storage unit 20. It is memorized and a series of processes in the preparation stage are completed.

Next, the operation of the mobile terminal 1 in the actual measurement stage will be described with reference to 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 subprocessor 60 continues to perform the processing of counting the number of steps ST0 by the default counting unit 610 in the same manner as in step S1 described in the preparation stage (step 41).

Next, in the main processor 10, when the step count measurement program 221 is in the activated state and the mode of the actual measurement stage is selected by the operation from the operation display unit 40, the function of the actual measurement stage in the step count measurement program 2210 is executed. As the start of the actual measurement stage, 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 first counting unit 110 performs processing in the same manner as the processing of steps S11 to S13 by the first counting unit 110 described in the preparation stage, and NO or NO or in step S44. After the process of step S45, the process proceeds to step 46.

Next, the correction unit 140 determines whether or not the screen on the operation display unit 40 is being displayed (step S46). When the screen is being displayed (YES in step S46), the first step count ST1 is acquired, the first relational expression F1 stored in the storage unit 20 is read out, and the first relational expression F1 read out is the first step count. Substituting ST1 to obtain the cumulative number of steps ST10 in the actual 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 processing NO or step S48 in step S46, the first counting unit 110 determines whether or not a measurement end instruction 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 the instruction to end the measurement is received, YES) in step S49), the series of processes in the actual measurement stage is completed.

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 showing the relationship between the first step number ST1 and the second step number ST2. It was generated by the unit 130, and in the actual measurement stage, the operation of the second counting unit 120 was stopped, and the cumulative number of steps ST10 was generated using the first step number ST1 and the first relational expression F1 measured by the first counting unit 110. Compared with the first counting unit 110, the second counting unit 120 has a larger processing load and a larger power consumption, but the counting accuracy is higher. Since the first counting unit 110 and the second counting unit 120 are operated in the preparation stage, the power consumption increases, but in the actual measurement stage, if only the first counting unit 110 and the correction unit 140 are operated, the first step number ST1 The cumulative number of steps ST10 with higher accuracy can be generated with low power consumption. As a result, the mobile 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 count measurement program 221 described in the first embodiment did not function to detect continuous walking. On the other hand, the step count measurement program 222 of the second embodiment functions to count the number of continuous walks NC, and the generation unit 130 performs continuous walks in addition to the first step count ST1 and the second step count ST2. It differs from the first embodiment in that the relational expression F is generated based on the number of times NC.
Hereinafter, in the second embodiment, the description of the similar parts described in the first embodiment will be omitted, and the different parts will be described.

Continuous walking means that the user walks continuously without stopping. The number of continuous walks NC means the number of times a series of continuous walks have been performed. For example, suppose that when a user posts a mail item, he / she walks from his / her home to a mailbox, stops for posting, and returns from the mailbox to his / her home in a unit time. In this case, each of the going walk and the returning walk corresponds to continuous walking, and the number of continuous walks N per unit time is "2".

FIG. 4 is a functional block diagram showing the configuration of the mobile terminal 1 according to 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 execute 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 generation unit 130. In addition to the function of the correction unit 140, the function of the continuous walking counting unit 111 is further realized.

The continuous walking counting unit 111 operates in the preparation stage and the actual measurement stage. The continuous walking counting unit 111 counts the number of continuous walking NCs based on the first step number ST1. Specifically, the continuous walking counting unit 111 determines that the user's state is walking when the first step number ST1 increases before reaching the predetermined time (for example, 1 second). On the other hand, if the continuous walking counting unit 111 does not increase the number of first steps ST1 before reaching the predetermined time, the continuous walking of the user is interrupted, and the continuous walking counting unit 111 determines that the user's state is stationary. In this case, the continuous walking counting unit 111 increases the number of continuous walking NCs by "1". 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. In this way, the continuous walking counting unit 111 compares the walking time from the timing immediately before the first step number ST1 is updated to the present with the predetermined time, and determines whether the user is walking or stationary. To 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 by using the number of continuous walks NC in addition to the first step number ST1 and the second step number ST2.

Specifically, the generation unit 130 sets the date and time of a set (ST1, ST2, NC) of the first step number ST1 per unit time, the second step number ST2 per unit time, and the number of continuous walks NC per unit time. The storage in the table 230 in association with is repeated every unit time.
After a certain period of time has elapsed, the generation unit 130 reads the table 230 from the storage unit 20 and generates the second relational expression F2 by a statistical method (regression analysis). The second relational expression F2 is expressed by the following equation (2).
F2 (ST1, NC) = ST10 = ST1 x α + NC x β + γ ... (2)

Equation (2) represents that the regression line shown in the above equation (1) is corrected by the number of continuous walks NC. β is a coefficient of NC for the number of continuous walks. As shown in the equation (2), the relational expression F has the first step number ST1 and the number of continuous walks NC as variables. In order to calculate the values α, β and γ, the generation unit 130 sets the set (ST1, ST2, NC) of the first step number ST1, the second step number ST2, and the number of continuous walks NC per unit time in the table 230. Read multiple from. Then, for example, the generation unit 130 applies the least squares method to the plurality of sets (ST1, ST2, NC) read out to calculate the values α, β, and γ of the equation (2).

In the actual measurement stage, the correction unit 140 acquires the second relational expression F2 represented by the equation (2) stored in the storage unit 20, and also acquires the first step count ST1 from the first counting unit 110, and the continuous walking counting unit. The number of continuous walks NC is obtained from 111, and the first step number ST1 and the number of continuous walks NC are substituted into the second relational expression F2 shown in the equation (2) to calculate the cumulative number of steps ST10 in the actual measurement stage. That is, the cumulative number of steps ST10 estimated to have been 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. 5A and 5B are flowcharts illustrating the operation of the mobile terminal 1 in the preparatory stage of the second embodiment. In contrast to the process related to the step count measurement program 221 described in the first embodiment, in the second embodiment, as shown in FIG. 5A, steps S14 to S19 are provided after step S13 in the process related to the step count measurement program 222. ing.

When the determination result in step S12 is affirmative, one step is detected, and the first step number ST1 is incremented, the continuous walking counting unit 111 resets the walking time (step S14). The walking time indicates the time from the detection of the previous step to the present. The longer walking time means that it takes time to take the next step. After that, the continuous walking counting unit 111 sets the state information during walking (step S15).

Next, the continuous walking counting unit 111 determines whether or not the state information indicates walking (step S16). When the state information indicates 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). When the walking time exceeds the predetermined time (YES in step S17), the continuous walking counting unit 111 increments the number of continuous walking NCs (step S18) and sets the state information to rest (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 When the process is completed, the determination result of step S23 is negative and no step is detected (NO in step S23), or when the process of step S24 is completed, the generation unit 130 has the first step number ST1 and the second step number ST2. It is determined whether or not a unit time (for example, 1 hour) has elapsed since and was reset (step S26). When the unit time has elapsed (YES in step S26), the generation unit 130 sets the set of the first step number ST1, the second step number ST2, and the number of continuous walks NC in this unit time to the date and time in the unit time. After storing in the table 230 of the storage unit 20 in association with each other, the first step number ST1, the second step number ST2, and the number of continuous walks NC are reset (step S27).

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

When a certain period of time has elapsed from the start of the preparation stage (YES in step S28), the generation unit 130 uses the table 230 stored in the storage unit 20 to store the first step number ST1, the second step number ST2, and the second step number ST2 stored in the storage unit 20. Read out the set of NCs for the number of continuous walks. Then, the generation unit 130 generates the second relational expression F2 for estimating the second step number ST2 from the first step number ST1 and the number of continuous walks NC by a statistical method (step S29), and stores the second relational expression F2. It is stored in the part 20 and a series of processes in the preparation stage are completed.

Next, the operation of the mobile terminal 1 at the actual 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 actual measurement stage in the second embodiment. The flowchart shown in FIG. 5C differs 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 the same as steps S11 to S19 described with reference to FIG. 5A. Further, in step S47b, the correction unit 140 calculates the cumulative number of steps ST10 in the actual measurement stage by substituting the first step number ST1 and the number of continuous walks NC into the second relational expression F2 read from the storage unit 20.

In the second embodiment, since the cumulative number of steps ST10 is obtained by using the second relational expression F2 in consideration of the number of continuous walks, the first is performed while reducing the power consumption of the main processor 10 and the mobile terminal 1. The number of steps can be counted with higher accuracy than in the embodiment.

<Third Embodiment>
In the function realized by the step count measurement program 222 described in the second embodiment, when the user is in a vehicle, the vibration 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 in a vehicle, and is applied to the first speed relational expression F31 which is applied when the moving speed is small. It differs from the second embodiment in that it generates a second speed relational expression F32 that is applied when the moving speed is high.
Hereinafter, in the third embodiment, the description of the same parts described in the second embodiment will be omitted, and the different parts will be described.

FIG. 6 is a functional block diagram of the mobile terminal 1 according to 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 execute the function of the first counting unit 110, the function of the second counting unit 120, and the generation unit. In addition to the functions of 130, the continuous walking counting unit 111, and the correction unit 140, the function of the specific unit 112 that specifies the magnitude of the moving speed is further realized. Secondly, the current moving speed V is acquired from the specific 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. Third, the correction unit 140 corrects the first step number ST1 by using the first speed relational expression F31 and the second speed relational expression F32 in consideration of the moving speed V, and generates the cumulative number of steps ST10.

The specific unit 112 operates in the preparation stage and the actual measurement stage. The identification unit 112 specifies the movement speed V of the user. For example, the identification unit 112 acquires an acceleration value A in the three axial directions from the acceleration sensor 30, and calculates the moving speed V of the user using the acquired acceleration value A.

Any method may be used for calculating the moving speed V. For example, the specific unit 112 synthesizes 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 specific 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 is in the vehicle, and 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 specific unit 112. Then, the generation unit 130 divides the second relational expression F2 shown in the formula (2) into the first speed relational expression F31 and the second speed relational expression F32 based on the current moving speed V. 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 more 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. 8 km / h is a value determined on the basis that it is faster than walking speed and generally slower than bicycle speed.

When 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 not riding the 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 on the vehicle. Then, the generation unit 130 sets the first step number ST1, the second step number ST2, and the number of continuous walks NC (ST1,) based on the current movement speed V until a certain period (for example, one week) elapses. ST2, NC) and the first state W or the second state TR are stored in the table 230 in association with the date and time zone, and this is repeated every unit time.

FIG. 7 is a diagram showing an example of the table 230 according to the third embodiment. For example, the first row of the table 230 is a set of the first step number ST1 and the second step number 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) indicates that it is associated with the first state W. Further, 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 the first steps. It shows that it is associated with the two-state TR. Similarly, the 2nd step ST2 is 805 steps, 95 of which are associated with the 1st state W and the remaining 710 steps are associated with the 2nd state TR. As shown in the third row of the table 230, when both the first step number ST1 and the second step number ST2 are 0, the generation unit 130, for example, sets NA (Not Applicable) corresponding to the set (ST1, Associate with ST2, NC).

After a certain period of time has passed, the generation unit 130 generates the first velocity relational expression F31 using the set associated with the first state W, and the second generation unit 130 uses the set associated with the second state TR. The velocity 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 uses a statistical method (regression analysis) to extract a plurality of sets (ST1, ST2, NC). , The first velocity relational expression F31 is generated using the extracted plurality of sets. 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). The second velocity relational expression F32 is generated.

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

In the formulas (3) and (4), α ₁ and α ₂ are coefficients of the first step number ST1. β ₁ and β ₂ are coefficients of NC for the number of continuous walks. γ ₁ and γ ₂ are intercepts. In _{order to obtain α 1} , β ₁ and γ ₁ , the generator 130 applies the least squares method to the pair associated with the first state W. Similarly, in _{order to obtain α 2} , β ₂ and γ ₂ , the generator 130 applies the least squares method to the pair associated with the second state TR.

In the actual measurement stage, the correction unit 140 selects either the first speed relational expression F31 or the second speed relational expression F32 stored in the storage unit 20 based on the current moving speed V, and the first counting unit 110. The first step number ST1 is acquired from, the number of continuous walks NC is acquired 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, and in the actual measurement stage. Calculate the cumulative number of steps ST10. That is, the cumulative number of steps ST10 estimated to have been counted by the second counting unit 120 is obtained. Specifically, in the actual measurement stage, the correction unit 140 acquires the current moving speed V from the specific unit 112, acquires the first step number ST1 from the first counting unit 110, and continuously walks from the continuous walking counting unit 111. The number of times NC is acquired. Then, when the acquired 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 the vehicle, selects the first speed relational expression F31, and selects this first speed relational expression F31. By substituting the acquired first step number ST1 and the number of continuous walks NC into the selected first speed relational expression F31, the cumulative number of steps ST10 in the actual measurement stage is calculated. 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 on the vehicle, selects the second speed relational expression F32, and selects the selected second state. The cumulative number of steps ST10 in the actual measurement stage is calculated by substituting the acquired first step number ST1 and the number of continuous walks NC into the two-speed relational expression F32.

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 the vehicle. The black circle symbol indicates the set (ST1, ST2, NC) associated with the second state TR in which the user is in the vehicle. Further, the dotted line virtually indicates the case where the first step number ST1 coincides with the second step number ST2.

The plurality of sets indicated by the square symbols are distributed slightly deviated from the dotted line. The cause of this deviation is considered to be the way the user walks. The multiple sets indicated by the black circle symbols are distributed with a large deviation from the dotted line. The cause of this deviation is considered to be that the vibration of the vehicle was 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 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 in the vehicle. The black circle symbol indicates the set (ST1, ST2, NC) associated with the second state TR in which the user is in the vehicle. Further, the dotted line virtually indicates the case where the first step number ST1 coincides with the second step number ST2.

As shown in FIG. 8B, the pairs (ST1, ST2, NC) associated with the first state W in which the user is not in the vehicle are generally distributed along the dotted line. On top of that, the erroneous counting of the set (ST1, ST2, NC) associated with the second state TR in which the user is in the vehicle is improved. Therefore, 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 obtained by using the first speed relational expression F31 and the second speed relational expression F32 based on the moving speed V, the power consumption of the main processor 10 and the mobile terminal 1 is reduced. However, the number of steps can be counted with higher accuracy than in the first and second embodiments.

<Modification example>
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. Further, the two or more embodiments arbitrarily selected from the following examples can be appropriately merged as long as they are not technically inconsistent.

(1) In each of the above-described embodiments, the relational expression is generated on the condition that a certain period of time elapses, but the present invention is not limited thereto. For example, when the number of samples required to generate the relational expression F is stored in the table 230, the preparation stage may be shifted to the actual measurement stage. In addition, the user may be able to input the period of the preparation stage.

(2) In each of the above-described embodiments, the function of the default counting unit 610 is realized in the subprocessor 60, but the function of the default counting unit 610 can also 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 actual measurement stage, and outputs the number of steps ST0 to the subprocessor 60 or the first counting unit 110 of the main processor 10. Is also good.

(3) In each of the above-described embodiments, the sub-processor 60 outputs the number of steps ST0 in response to the request from the main processor 10, but the present invention is not limited to this, and the first counting unit 110 is the user. It is only necessary to be able to obtain walking information related to walking. This walking information includes a signal indicating that the number of steps has increased by "1" in addition to the number of steps ST0. For example, the interrupt signal generated every time the subprocessor 60 detects a step corresponds to this.
When the first counting unit 110 acquires an interrupt signal as walking information, it detects one step when it detects the interrupt signal (step S12 shown in FIG. 3A).

(4) In each of the above-described embodiments, the first step count ST1 and the second step count ST2 were 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 is connected to the subprocessor 60 and detects the angular velocities ω on the three axes, that is, the angular velocities ωX around the X-axis, the angular velocities ωY around the Y-axis, and the angular velocities ωZ around the Z-axis. The default counting unit 610 counts the number of steps ST0 using the acceleration value A in the three-axis direction and the angular velocity ω in the three axes. Similarly, the second counting unit 120 also counts the first step number ST1 by using the angular velocity ω in the three axes in addition to the acceleration value A in the three-axis direction.

(5) In the third embodiment described above, the current moving speed V is calculated based on the acceleration value A in the three axial 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 specific unit 112 may calculate the time change of the position.

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

1 ... mobile terminal, 10 ... main processor, 20 ... storage unit, 30 ... acceleration sensor, 40 ... operation display unit, 50 ... communication unit, 60 ... subprocessor, 110 ... first counting unit, 120 ... second counting unit, 130 ... Generation unit, 140 ... Correction unit, 111 ... Continuous walking counting unit, 112 ... Specific unit, 210 ... Default step counting program, 221, 222, 223 ... Step counting program, 230 ... Table, 610 ... Default counting unit.

Claims (8)

It is a step counting program that is executed by the processor.
The processor
A first counting unit that acquires walking information related to a user's walking generated based on an acceleration value output from an acceleration sensor, and outputs a first step number 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 generator that generates at least a relational expression showing the relationship between the first step and the second step based on the first step and the second step.
It functions as a correction unit that outputs the cumulative number of steps based on the first number of steps and the relational expression.
Step count program. In the preparatory stage for measuring the number of steps, the processor
The first counting unit, the second counting unit, and the generating unit are allowed to function.
In the actual measurement stage of measuring the number of steps, the processor
To function as the first counting unit and the correction unit.
The step count measuring program according to claim 1. In the preparatory stage, the processor
Furthermore, it functions as a continuous walking counting unit that counts the number of continuous walking.
The relational expression shows the relationship between the first step count, the second step count, and the number of continuous walks.
The generation unit generates the relational expression based on the number of steps of the first step, the number of steps of the second step, and the number of continuous walks.
In the actual measurement stage, the processor
Further, it is made to function as the continuous walking counting unit.
The correction unit outputs the cumulative number of steps based on the number of the first steps, the number of continuous walks, and the relational expression.
The step count measuring program according to claim 2. The continuous walking counting unit compares the walking time from the timing immediately before the first step number is updated to the present with the predetermined time, determines whether the user is walking or is stationary, and determines. The step count measuring program according to claim 3, wherein the number of continuous walks is counted based on the result. In the preparatory stage, the processor
Furthermore, it functions as a specific part that identifies the movement speed of the user.
The generator
Acquire the moving speed specified by the specific part,
The relational expression is generated separately into a first speed relational expression applied when the moving speed is large and a second speed relational expression applied when the moving speed is small.
In the actual measurement stage, the processor
Further, it is made to function as the specific part.
The correction unit acquires the moving speed from the specific unit, selects either the first speed relational expression or the second speed relational expression based on the moving speed, and selects the selected relational expression and the first step count. Outputs the cumulative number of steps based on
The step count measuring program according to any one of claims 2 to 4. The processing load of the first counting unit is lighter than that of the second counting unit.
The accuracy of the second step is higher than the accuracy of the first step.
The step count measurement program according to any one of claims 2 to 5. An accelerometer that outputs an acceleration value and
A subprocessor that generates walking information about the user's walking based on the acceleration value output from the acceleration sensor,
A first counting unit that counts the number of steps accumulated from a predetermined timing based on the walking information, and a first counting unit.
A second counting unit that counts the number of steps accumulated from the predetermined timing based on the acceleration value, and a second counting unit.
A generator that generates a relational expression showing the relationship between the first step and the second step based on the first step and the second step.
A correction unit that outputs the cumulative number of steps based on the first step number and the relational expression,
A mobile terminal equipped with. The first counting unit, the second counting unit, and the generating unit are operated in the preparatory stage for measuring the number of steps, and the first counting unit and the correction unit are operated in the actual measurement stage for measuring the number of steps. Item 7. The mobile terminal according to item 7.

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