WO2019116834A1

WO2019116834A1 - Activity amount acquisition system and activity amount acquisition method

Info

Publication number: WO2019116834A1
Application number: PCT/JP2018/042744
Authority: WO
Inventors: 西山　高史; 賢吾阿部
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2017-12-13
Filing date: 2018-11-20
Publication date: 2019-06-20
Also published as: JP6893336B2; JPWO2019116834A1

Abstract

This activity amount acquisition system (110) is provided with a first acquisition unit (111) which acquires a first activity amount of a user during a first period during which the user carries a first sensor (101), a second acquisition unit (112) which acquires a second activity amount of the user during a second period during which the user is present in a space in which a second sensor (102) is installed, and an integration unit (113) which acquires the activity amount of the user by integrating the first activity amount and the second activity amount. The integration unit (113) adjusts at least one of the first activity amount and the second activity amount such that the level of the first activity amount and the level of the second activity amount during overlapping periods match, and integrates the first activity amount and the second activity amount, at least one of which has been adjusted.

Description

Activity amount acquisition system and activity amount acquisition method

The present invention relates to an activity amount acquisition system and the like for acquiring an activity amount.

Patent Document 1 describes an activity amount estimation system that estimates the amount of physical activity of a living body based on the movement of the living body detected by a sensor installed on a ceiling or the like of a room. Further, Patent Document 2 describes an activity meter which is attached to a subject's body, measures acceleration, and measures the amount of activity of the subject.

Unexamined-Japanese-Patent No. 2017-023449 JP, 2014-223098, A

However, with a sensor installed on the ceiling of a room or the like, it is difficult to obtain the user's activity amount when there is no user in the room. Moreover, in the sensor which measures acceleration, when a user does not carry a sensor, it is difficult to acquire a user's active mass. Therefore, it is not easy to acquire the continuous transition of the user's activity amount appropriately.

Then, this invention aims at providing the active mass acquisition system etc. which can acquire the continuous transition of a user's active mass appropriately.

The activity amount acquisition system according to an aspect of the present invention is a first activity amount of the user in the first period according to a measurement value of the first sensor in the first period in which the user carries the first sensor. The amount of activity of the user in the second period according to the measurement value of the second sensor in the second period in which the user is present in a space where the first sensor acquires the amount of activity by time and the second sensor is installed A second acquisition unit for acquiring a second activity amount by time, and integrating the first activity amount in the first period and the second activity amount in the second period; And an integration unit configured to acquire the amount of activity of the user in the inclusive period including the second period by time, and the integration unit is configured to calculate the first amount of activity in an overlapping period of the first period and the second period. Re At least one of the first activity amount in the first period and the second activity amount in the second period such that the second activity amount matches the level of the second activity amount; The adjusted first activity amount and the second activity amount are integrated.

Moreover, the activity amount acquisition method according to an aspect of the present invention is the activity amount of the user in the first period according to the measurement value of the first sensor in the first period in which the user is carrying the first sensor. According to the measurement value of the second sensor in the second period in which the user exists in the space where the second sensor is installed, the first acquisition step of acquiring the first activity amount by time, and the second user in the second period The second acquisition step of acquiring a second activity amount, which is an activity amount, by time, and integrating the first activity amount in the first period and the second activity amount in the second period, Obtaining an activity amount of the user in the inclusive period including the period and the second period by time, wherein the integrating step includes overlapping periods of the first period and the second period At least one of the first activity amount in the first period and the second activity amount in the second period such that the level of the first activity amount matches the level of the second activity amount in The adjustment is performed, and the at least one adjusted first activity amount and the second activity amount are integrated.

The activity amount acquisition system and the like according to one aspect of the present invention can appropriately acquire the continuous transition of the user's activity amount.

FIG. 1 is a block diagram showing the configuration of an activity amount acquisition system according to the embodiment. FIG. 2 is a conceptual diagram showing an activity amount acquisition process according to the embodiment. FIG. 3A is a graph showing an example of an activity amount in which the first activity amount having low reliability and the second activity amount having high reliability are integrated. FIG. 3B is a graph showing an example of an activity amount in which the first activity amount having high reliability and the second activity amount having low reliability are integrated. FIG. 4 is a graph showing an example of a third activity amount identified according to at least one of the first activity amount and the second activity amount. FIG. 5 is a flowchart showing the operation of the activity amount acquisition system according to the embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below all show comprehensive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of components, order of operations, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the components in the following embodiments, components that are not described in the independent claim indicating the highest concept are described as arbitrary components.

In addition, each of a plurality of drawings used in the following description is a schematic diagram, and does not necessarily show strictly accurate values and the like.

Embodiment
FIG. 1 is a block diagram showing a configuration of an activity amount acquisition system according to the present embodiment. The activity amount acquisition system 110 illustrated in FIG. 1 is a system for acquiring an activity amount of a user, and includes a first acquisition unit 111, a second acquisition unit 112, and an integration unit 113. The amount of activity of the user may also be expressed as the amount of movement of the user. Further, in FIG. 1, a first sensor 101 and a second sensor 102 are shown.

For example, from the first sensor 101 to the first acquisition unit 111, from the second sensor 102 to the second acquisition unit 112, and from the first acquisition unit 111 to the integration unit 113 via an input / output circuit, a communication line, or a communication network. Various types of information are transmitted from the second acquisition unit 112 to the integration unit 113. Wired communication may be used for communication for transmitting information, or wireless communication may be used. For example, information may be transmitted as needed from the first sensor 101 to the first acquisition unit 111 by wireless communication.

The first sensor 101 is a sensor for acquiring the amount of activity of the user at each time, and is carried by the user. The first sensor 101 measures a value indicating the amount of activity of the user carrying the first sensor 101 every time. For example, the first sensor 101 measures a value indicating an activity amount every one minute.

The first sensor 101 may be carried by being worn on the user's body or may be carried by being carried by the user. For example, the first sensor 101 may be carried in a pocket or bag of the user. The first sensor 101 may be incorporated in a mobile phone carried by a user, a smartphone, a tablet terminal, a mobile terminal, or the like.

Also, the first sensor 101 may be an acceleration sensor that measures the acceleration of the first sensor 101. For example, in this case, the first sensor 101 measures an acceleration indicating the amount of activity of the user carrying the first sensor 101. This acceleration may indicate whether the user is carrying the first sensor 101 or not. The first sensor 101 may be a three-axis acceleration sensor that measures the acceleration of the first sensor 101 in each of three directions perpendicular to each other.

In addition, the first sensor 101 may measure the acceleration or the like of the first sensor 101, and may further measure the amount of activity of the user according to the measured acceleration or the like. For example, the first sensor 101 may measure a value obtained by applying data processing such as numerical analysis and quantization to the measured acceleration or the like as the amount of activity of the user. Further, the first sensor 101 may measure the acceleration or the like of the first sensor 101 as the amount of activity of the user.

Further, the first sensor 101 may be a position sensor instead of an acceleration sensor. Then, the first sensor 101 may measure the amount of change in position as the amount of activity. Further, the first sensor 101 indicates whether the user is carrying the first sensor 101 or not, and an acceleration sensor or position sensor that measures a value indicating the amount of activity of the user carrying the first sensor 101. A temperature sensor or pressure sensor or the like that measures a value to be obtained may be included.

The second sensor 102 is a sensor for acquiring the amount of activity of the user at each time, and is installed in the space. The second sensor 102 measures, for each time, a value indicating the amount of activity of the user present in the space where the second sensor 102 is installed. Similarly to the first sensor 101, the second sensor 102 may measure a value indicating an activity amount every one minute.

Moreover, the space where the second sensor 102 is installed is a space in which the user may exist. This space may be the user's home, the user's room, or the user's office. The second sensor 102 may be installed on the ceiling of the user's room or may be installed under a bed in the user's room. Moreover, the 2nd sensor 102 may be incorporated in household appliances, such as an air-conditioner.

The second sensor 102 may be a radio wave sensor that measures the difference between the radio wave transmitted from the second sensor 102 and the radio wave received by the second sensor 102. Such radio wave sensor is also called a Doppler sensor.

For example, the radio wave transmitted from the second sensor 102 is reflected by the user and received by the second sensor 102. Then, when the user is moving, a difference occurs between the frequency of the radio wave transmitted from the second sensor 102 and the frequency of the radio wave received by the second sensor 102 due to the Doppler effect. The difference in frequency indicates the moving speed of the user. That is, the difference in frequency indicates the amount of activity of the user. The second sensor 102 may measure a difference indicating such an amount of activity of the user.

Further, the second sensor 102 may measure the difference between the transmission radio wave and the reception radio wave, and may further measure the amount of activity of the user according to the measured difference. For example, the second sensor 102 may measure a value obtained by applying data processing such as numerical analysis and quantization to the measured difference as a user activity amount. Further, the second sensor 102 may measure the difference between the transmission radio wave and the reception radio wave as the amount of activity of the user.

Further, the difference between the transmission radio wave and the reception radio wave is not limited to the movement of the position of the user, and may be influenced by the movement of the body surface of the user and may indicate the user's heartbeat, respiration and the like. Therefore, by measuring the difference between the transmission radio wave and the reception radio wave, the second sensor 102 can measure a value indicating whether the user is present in the space where the second sensor 102 is installed.

Thereby, the second sensor 102 can measure a value indicating whether or not the user is present in the space where the second sensor 102 is installed, and the user of the user in the space where the second sensor 102 is installed is A value indicating the amount of activity can be measured. For example, when the user does not move in the space in which the second sensor 102 is installed, the second sensor 102 may measure a value indicating that the user is in the space in which the second sensor 102 is installed. It is possible to measure a value indicating 0 as the amount of activity of the user.

For example, when the difference between the transmission radio wave and the reception radio wave is small or finely fluctuates, the second sensor 102 may measure the difference between the transmission radio wave and the reception radio wave as the user's heartbeat and respiration. When the difference between the transmission radio wave and the reception radio wave fluctuates largely or roughly, the second sensor 102 may measure the difference between the transmission radio wave and the reception radio wave as the movement of the user or the like.

The second sensor 102 may be an image sensor installed in space instead of a radio wave sensor. Then, the second sensor 102 may measure the amount of movement in space according to the image of space. The amount of such movement indicates the amount of activity of the user in space.

The first acquisition unit 111 is an information processing unit that acquires the amount of activity of the user hourly according to the measurement value of the first sensor 101. That is, the first acquisition unit 111 acquires the amount of activity of the user according to the measurement value of the first sensor 101 for each time (for example, every one minute). The first acquisition unit 111 may be configured by an electric circuit.

For example, the first acquisition unit 111 acquires measurement values of the first sensor 101 by time. The first acquisition unit 111 is not limited to acquiring the measurement value of the first sensor 101 in real time, and may acquire a plurality of measurement values of the first sensor 101 at a plurality of times. Then, according to the measurement value of the first sensor 101 in the first period in which the user carries the first sensor 101, the first acquisition unit 111 separates the first activity amount, which is the user's activity amount in the first period, by time. get.

In addition, the first acquisition unit 111 uses, as a first activity amount in the first period, a value obtained by applying data processing such as numerical analysis and quantization to the measurement value of the first sensor 101 in the first period. You may get it. In addition, the first sensor 101 may acquire the measurement value of the first sensor 101 in the first period as the first activity amount in the first period.

Further, the first acquisition unit 111 may specify the first period in which the user is carrying the first sensor 101 according to the measurement value of the first sensor 101.

For example, when the first sensor 101 is an acceleration sensor, the first acquisition unit 111 may acquire the acceleration measured by the first sensor 101. Then, the first acquisition unit 111 specifies a period in which the state in which the measured acceleration is equal to or less than the threshold lasts longer than a predetermined period as a period in which the user does not carry the first sensor 101, and the other period is The first sensor 101 may be specified as the first period of carrying.

Specifically, the first acquisition unit 111 specifies a period in which the measured acceleration is 0 lasts longer than one hour as a period in which the user does not carry the first sensor 101, and the other period is a user May be identified as a first period of time in which the first sensor 101 is carried.

Further, the acceleration may be measured by the first sensor 101, and the first acquisition unit 111 may specify a period in which the measured acceleration is larger than the first threshold as the first period. Then, when the measured acceleration is larger than the second threshold larger than the first threshold, the first acquiring unit 111 acquires an activity larger than 0 as the user's activity according to the measured acceleration. It is also good. That is, when the measured acceleration is larger than the first threshold and smaller than the second threshold, the first acquisition unit 111 determines that the user is not moving substantially and is carrying the first sensor 101. It is also good.

When the first sensor 101 includes a temperature sensor, the first acquisition unit 111 may specify, as the first period, a period in which a temperature in a predetermined range close to the body temperature is measured by the first sensor 101. In addition, when the first sensor 101 includes a pressure sensor, the first acquisition unit 111 identifies, as the first period, a period in which the pressure in a predetermined range generated by the attachment of the first sensor 101 is measured by the first sensor 101. May be

By the operation as described above, the first acquisition unit 111 can acquire, as 0, the amount of activity of the user when the user carries the first sensor 101 and the user is not substantially moving. That is, the first acquisition unit 111 identifies a part of the period in which the amount of activity acquired according to the measurement value of the first sensor 101 is zero as a part of the first period in which the user carries the first sensor 101. can do.

Further, the first acquisition unit 111 may acquire the measurement value of the first sensor 101 from the first sensor 101 via communication. In this case, the first acquisition unit 111 may have a communication terminal or an antenna for communication. Alternatively, the first acquisition unit 111 may acquire the measurement value of the first sensor 101 via the recording medium. In this case, the first acquisition unit 111 may have a connection interface for connecting to the recording medium.

The second acquisition unit 112 is an information processing unit that acquires the amount of activity of the user by time according to the measurement value of the second sensor 102. That is, the second acquisition unit 112 acquires the activity amount of the user according to the measurement value of the second sensor 102 for each time (for example, every one minute). The second acquisition unit 112 may be configured by an electric circuit.

For example, the measurement value of the second sensor 102 is acquired for each time. The second acquisition unit 112 is not limited to acquiring the measurement values of the second sensor 102 in real time, and may acquire a plurality of measurement values of the second sensor 102 at a plurality of times. Then, the second acquisition unit 112 calculates a second activity amount, which is an amount of activity of the user in the second period, according to the measurement value of the second sensor 102 in the second period in which the user is present in the space where the second sensor 102 is installed. Get by hour.

In addition, the second acquisition unit 112 uses, as a second activity amount in the second period, a value obtained by applying data processing such as numerical analysis and quantization to the measurement value of the second sensor 102 in the second period. You may get it. Further, the second sensor 102 may acquire the measurement value of the second sensor 102 in the second period as the second activity amount in the second period.

Further, the second acquisition unit 112 may specify a second period in which the user is present in the space where the second sensor 102 is installed, in accordance with the measurement value of the second sensor 102. For example, when the second sensor 102 is a radio wave sensor, the second acquisition unit 112 acquires, as a measurement value of the second sensor 102, a value indicating whether the user is present in the space where the second sensor 102 is installed. You may Then, the second acquisition unit 112 may specify, as a second period, a period in which the measurement value of the second sensor 102 indicates that the user is present in the space where the second sensor 102 is installed.

For example, the difference between the transmission radio wave and the reception radio wave may be measured by the second sensor 102, and the second acquisition unit 112 may specify a period in which the measured difference is larger than the first threshold as the second period. Then, when the measured difference is larger than the second threshold larger than the first threshold, the second acquiring unit 112 acquires an activity amount larger than 0 as the user's activity according to the measured difference. It is also good.

That is, when the measured difference is larger than the first threshold and smaller than the second threshold, the second acquiring unit 112 determines that the user does not move substantially and exists in the space where the second sensor 102 is installed. You may

By the operation as described above, the second acquisition unit 112 acquires, as 0, the amount of activity of the user when the user is present in the space where the second sensor 102 is installed and the user is not substantially moving. be able to. That is, the second acquisition unit 112 performs a part of the period in which the amount of activity acquired according to the measurement value of the second sensor 102 is 0 during a second period in which the user is present in the space where the second sensor 102 is installed. Can be identified as a department.

Further, the second acquisition unit 112 may acquire the measurement value of the second sensor 102 from the second sensor 102 via communication. In this case, the second acquisition unit 112 may have a communication terminal or an antenna for communication. Alternatively, the second acquisition unit 112 may acquire the measurement value of the second sensor 102 via the recording medium. In this case, the second acquisition unit 112 may have a connection interface for connecting to the recording medium.

The integration unit 113 integrates the first activity amount in the first period and the second activity amount in the second period to acquire the activity amount of the user in the inclusive period including the first period and the second period by time. Information processing unit.

That is, the integration unit 113 integrates the first activity amount acquired according to the measurement value of the first sensor 101 and the second activity amount acquired according to the measurement value of the second sensor 102. Thereby, the first activity based on the measurement value of the first sensor 101 and the second activity based on the measurement value of the second sensor 102 are integrated at one place. Then, the integration unit 113 acquires the activity amount of the user for each time (for example, every one minute) in the inclusive period.

In addition, in the integration, the integration unit 113 adjusts at least one of the first activity amount in the first period and the second activity amount in the second period, thereby overlapping the first period and the second period. Matching the level of the first activity level with the level of the second activity level. That is, the integration unit 113 is configured to adjust the first activity amount and the second activity amount in the first period so that the first activity amount level matches the second activity amount level in the overlapping period of the first period and the second period. At least one of the second activity amount in the period is adjusted.

Here, the level of the first activity in the overlapping period is a measure of the magnitude of the first activity in the overlapping period, and the accumulated value, average value, maximum value or minimum value of the first activity in the overlapping period, etc. It may be Similarly, the level of the second activity in the overlapping period is a measure of the magnitude of the second activity in the overlapping period, and the accumulated value, average value, maximum value or minimum value of the second activity in the overlapping period, etc. It may be

For example, in the adjustment, the integration unit 113 may multiply the first activity amount in the first period by a certain multiplier, or may multiply the second activity amount in the second period with a certain multiplier. Alternatively, the integration unit 113 may add a constant addend to the first activity amount in the first period, or may add a constant addend to the second activity amount in the second period. Alternatively, the integration unit 113 may apply the combination of the addition processing and the multiplication processing to at least one of the first activity amount in the first period and the second activity amount in the second period.

The constant multiplier may have a value smaller than one, and the constant addend may have a value smaller than zero. Then, the integration unit 113 integrates the first activity amount and the second activity amount, at least one of which is adjusted. Accordingly, the integration unit 113 acquires the amount of activity of the user in the inclusive period including the first period and the second period by time.

Also, for example, the integration unit 113 outputs activity amount information indicating an activity amount acquired by integrating the first period and the second period. The integration unit 113 may output activity amount information by transmitting the activity amount information by communication. In this case, the integration unit 113 may have a communication terminal or an antenna for communication. Alternatively, the integration unit 113 may output activity amount information to a recording medium. In this case, the integration unit 113 may have a connection interface for connecting to the recording medium.

Alternatively, the integration unit 113 may output the activity amount information by displaying on the display. The display may be included in the activity acquisition system 110, may be included in the integration unit 113, or may be included in another system. The activity amount information may be used for confirmation of the safety of the user, confirmation of the lifestyle pattern of the user, confirmation of the health condition of the user, and the like. Further, the activity amount information may be used as information for operating the home appliance according to the life pattern of the user.

The activity amount acquisition system 110 includes the first acquisition unit 111, the second acquisition unit 112, and the integration unit 113 as described above. The activity acquisition system 110 is, for example, a computer system including a processor, a memory, and the like. The first acquisition unit 111, the second acquisition unit 112, and the integration unit 113 may be realized by a processor, a memory, and the like.

Moreover, the active mass acquisition system 110 may be one device or may be configured of a plurality of devices. Further, the activity amount acquisition system 110 may be installed in the space where the second sensor 102 is installed, or may be installed in other spaces. Moreover, although the active mass acquisition system 110 acquires the active mass of one user here, you may acquire each active mass of several users.

The first acquisition unit 111 and the second acquisition unit 112 may constitute a common acquisition unit. Further, the first acquisition unit 111, the second acquisition unit 112, and the integration unit 113 may constitute one information processing unit. The activity acquisition system 110 may further include a first sensor 101 or a second sensor 102. Further, the activity amount acquisition system 110 may include the first sensor 101 for each user, and may include the second sensor 102 for each user.

In addition, the activity amount acquisition system 110 may be included in the mobile phone, the smartphone, the tablet terminal, the mobile terminal, or the like together with the first sensor 101. Alternatively, the activity amount acquisition system 110 may be included in an air conditioner or the like together with the second sensor 102.

FIG. 2 is a conceptual diagram showing an activity amount acquisition process performed by the activity amount acquisition system 110 shown in FIG. As shown in FIG. 2, the first activity amount in the first period in which the user carries the first sensor 101 is acquired from the first sensor 101. In this example, the first activity amount in the first period up to 21:00 is acquired. In addition, the second activity amount in the second period in which the user is present in the space where the second sensor 102 is installed is acquired from the second sensor 102. In this example, the second activity amount in the second period from 20:00 to the present is acquired.

Even if the actual amount of activity does not change significantly in the first and second periods, the level of the first amount of activity in the first period is determined by the difference between the characteristics of the first sensor 101 and the characteristics of the second sensor 102. And the level of the second activity in the second period may be different. Therefore, even if the first activity amount in the first period and the second activity amount in the second period are simply joined together, the transition of the activity amount in the inclusive period including the first period and the second period can be appropriately obtained. There is no possibility.

Therefore, the integration unit 113 adjusts the level of the first activity amount and the level of the second activity amount. For example, the first activity amount and the second activity amount in the overlapping period of the first period and the second period are based on the same activity amount and are ideally equal to each other. Therefore, integration unit 113 causes the first activity amount in the first period and the second activity amount in the second period to match the level of the first activity amount in the overlapping period and the level of the second activity amount. Adjust at least one of the

Thereby, the integration unit 113 brings the level of the first activity amount in the overlapping period close to the level of the second activity amount, and the level of the first activity amount in the overlapping period matches the level of the second activity amount. Let In other words, the integration unit 113 makes the difference between the level of the first activity and the level of the second activity in the overlapping period equal to or less than the threshold.

For example, the integration unit 113 calculates a ratio of the level of the first activity in the overlapping period to the level of the second activity in the overlapping period, and sets the calculated ratio to the second activity in each time of the second period. You may hang up. Alternatively, the integration unit 113 calculates the ratio of the level of the second activity in the overlapping period to the level of the first activity in the overlapping period, and sets the calculated ratio to the first amount of activity at each time of the first period. You may hang up.

Alternatively, the integration unit 113 calculates an average difference value by subtracting the level of the second activity amount in the overlapping period from the level of the first activity amount in the overlapping period, and calculates the calculated difference value for the second period. You may add to the 2nd activity amount in each time. Alternatively, the integration unit 113 calculates an average difference value by subtracting the level of the first activity amount in the overlapping period from the level of the second activity amount in the overlapping period, and calculates the calculated difference value for the first period. You may add to the 1st activity amount in each time.

Furthermore, the integration unit 113 performs a constant multiplier on the first activity amount or the second activity amount so that the level of the first activity amount and the level of the second activity amount become closer at each time of the overlapping period. A combination of multiplication processing and addition processing for adding a constant addend may be applied. Furthermore, the integration unit 113 may apply a combination of multiplication processing and addition processing to each of the first activity amount and the second activity amount.

The integration unit 113 applies the adjustment to the entire first period or the second period, which is limited to the overlapping period, and occurs due to the difference between the characteristic of the first sensor 101 and the characteristic of the second sensor 102. It is possible to suppress harmful effects.

Then, the integration unit 113 integrates the first activity amount and the second activity amount, at least one of which is adjusted. Thus, the integration unit 113 can appropriately acquire the activity amount of the user in the inclusive period including the first period and the second period.

In the example of FIG. 2, the integration unit 113 performs the second activity in the second period so that the first activity level and the second activity level match in the overlapping period from 20:00 to 21:00. Adjust the amount. Then, the integration unit 113 acquires the activity amount of the user in the inclusive period including the first period and the second period by integrating the first activity amount and the adjusted second activity amount.

Also, for example, the method by which the user carries the first sensor 101 may differ depending on the day, and the position where the user is present in the space where the second sensor 102 is installed may differ depending on the day. . Therefore, the integration unit 113 may specify an adjustment factor such as a constant multiplier or a constant addend for adjusting the first activity amount or the second activity amount on a daily basis. Alternatively, the integration unit 113 may specify the adjustment coefficient each time the overlapping period of the first period and the second period occurs.

In addition, the integration unit 113 may integrate the first activity amount and the second activity amount into an average value of the first activity amount and the second activity amount for each period of the overlapping period. Alternatively, the integration unit 113 determines the first activity amount and the second activity amount as the first activity amount and the second activity amount based on the reliability of each of the first activity amount and the second activity amount in the overlapping period. May be integrated into one of them. The degree of confidence in the amount of activity means the degree of certainty of the amount of activity.

FIG. 3A is a graph showing an example of an activity amount in which the first activity amount having low reliability and the second activity amount having high reliability are integrated by the activity amount acquisition system 110 shown in FIG. 1. For example, because the measurement value of the first sensor 101 changes depending on how the user carries the first sensor 101, the reliability of the first activity amount acquired according to the measurement value of the first sensor 101 is low There is. In addition, the measurement accuracy of the second sensor 102 may be high, and the reliability of the second activity amount acquired in accordance with the measurement value of the second sensor 102 may be high.

In such a case, the second activity amount is adopted in the overlapping period of the first period and the second period. That is, as illustrated in FIG. 3A, the integration unit 113 integrates the first activity amount and the second activity amount into the second activity amount in the overlapping period.

FIG. 3B is a graph showing an example of an activity amount in which the first activity amount having high reliability and the second activity amount having low reliability are integrated by the activity amount acquisition system 110 shown in FIG. 1. For example, since the first sensor 101 is incidental to the user and is not influenced by an obstacle or the like, the reliability of the first activity amount acquired in accordance with the measurement value of the first sensor 101 may be high. In addition, the measurement accuracy of the second sensor 102 may be low, and the reliability of the second activity amount acquired according to the measurement value of the second sensor 102 may be low.

In such a case, the first activity amount is adopted in the overlapping period of the first period and the second period. That is, as illustrated in FIG. 3B, the integration unit 113 integrates the first activity amount and the second activity amount into the first activity amount in the overlapping period.

In each example of FIG. 3A and FIG. 3B, the integration unit 113 performs the first activity amount and the second activity amount as the first activity amount based on the reliability of each of the first activity amount and the second activity amount in the overlapping period. It is integrated into one of the activity amount and the second activity amount. However, the integration unit 113 may integrate the first activity amount and the second activity amount by using a weighted average value based on the reliability of the first activity amount and the reliability of the second activity amount for the overlapping period. .

Also, the reliability of each of the first activity amount and the second activity amount may be determined in advance. For each of the first and second periods, the longer the period, the higher the reliability may be determined.

In addition, even in the first period in which the user carries the first sensor 101, there is a possibility that there is a third period different from the second period in which the user is present in the space where the second sensor 102 is installed. The integration unit 113 may further specify a third activity, which is an activity of the user in a third period that is different from the first period and the second period, in accordance with at least one of the first activity and the second activity.

FIG. 4 is a graph showing an example of a third activity amount identified by the activity amount acquisition system 110 shown in FIG. 1 according to at least one of the first activity amount and the second activity amount. In this example, the period from 16:30 to 17:30 is a third period which is different from the first period and the second period. That is, in the third period from 16:30 to 17:30, both in the first period in which the user carries the first sensor 101 and in the second period in which the user is present in the space where the second sensor 102 is installed. It is different.

In this example, the integration unit 113 of the activity amount acquisition system 110 specifies the third activity amount in the third period by the first activity amount in the first period and the second activity amount in the second period. More specifically, the integration unit 113 linearly predicts the third activity amount from 16:30 to 17:30 by the second activity amount at 16:30 and the first activity amount at 17:30. Thus, the third activity amount in the third period is interpolated.

Thus, the integration unit 113 complements the third activity amount in the third period. Then, the integration unit 113 acquires the amount of activity of the user in the inclusive period including the first period, the second period, and the third period by time.

As described above, in this example, the third activity amount from 16:30 to 17:30 is linearly predicted by the second activity amount at 16:30 and the first activity amount at 17:30. However, the third activity amount in the third period may be interpolated by the average value of the second activity amount at 16:30 and the first activity amount at 17:30. Alternatively, the third activity amount in the third period may be interpolated by the second activity amount at 16:30 or the first activity amount at 17:30.

Also, in this example, after at least one of the first activity amount and the second activity amount has been adjusted so that the level of the first activity amount and the level of the second activity amount in the overlapping period are adjusted, The first activity amount and the second activity amount identify the third activity amount in the third period. However, before adjustment, the third activity amount in the third period may be specified by the first activity amount or the second activity amount. Then, the identified third activity amount may be adjusted in the same manner as the first activity amount or the second activity amount used for identifying the third activity amount.

FIG. 5 is a flowchart showing the operation of the activity amount acquisition system 110 shown in FIG. The activity amount acquisition system 110 acquires the user's activity amount by performing the operation shown in FIG. 5.

First, according to the measurement value of the first sensor 101 in the first period in which the user carries the first sensor 101, the first acquisition unit 111 separates the first activity amount, which is the user's activity amount in the first period, by time. Acquire (S101). The first acquisition unit 111 may specify the first period according to the measurement value of the first sensor 101 when acquiring the first activity amount. Then, the first acquisition unit 111 may acquire the first activity amount in the specified first period by time according to the measurement value of the first sensor 101 in the specified first period.

Next, the second acquisition unit 112 is a second activity that is an activity amount of the user in the second period according to the measurement value of the second sensor 102 in the second period in which the user is present in the space where the second sensor 102 is installed. The quantities are obtained hourly (S102). The second acquisition unit 112 may specify the second period according to the measurement value of the second sensor 102 when acquiring the second activity amount. Then, the second acquisition unit 112 may acquire the second activity amount in the specified second period by time according to the measurement value of the second sensor 102 in the specified second period.

The second acquisition unit 112 may acquire the second activity amount before the first acquisition unit 111 acquires the first activity amount. Also, the first acquisition unit 111 and the second acquisition unit 112 may acquire the first activity amount and the second activity amount in parallel.

Next, the integrating unit 113 determines whether the first activity level and the second activity level match in the overlapping period of the first period and the second period. At least one of the second activity amounts in the two periods is adjusted (S103). That is, the integrating unit 113 adjusts the first activity in the first period and the second activity in the second period by adjusting at least one of the first activity in the first period and the second activity in the second period. Matching the level of the volume with the level of the second activity volume.

The integration unit 113 performs at least one of multiplication processing of multiplying a first activity amount in the first period and / or second activity amount in the second period by a fixed multiplier and addition processing of adding a fixed addend. The above adjustment may be performed by applying one of them.

Next, the integration unit 113 integrates the first activity amount in the first period and the second activity amount in the second period to obtain the user's activity amount in the inclusive period including the first period and the second period. It acquires by time (S104). At this time, the integration unit 113 integrates the first activity amount and the second activity amount, at least one of which is adjusted.

In addition, in the integration of the first activity amount and the second activity amount, the integration unit 113 determines the first activity amount and the first activity amount in the overlap period according to the reliability of each of the first activity amount and the second activity amount in the overlap period. The two activity amounts may be integrated. For example, the integration unit 113 may integrate the first activity amount and the second activity amount in the overlapping period into the higher one of the first activity amount and the second activity amount in the overlapping period.

In addition, the integration unit 113 determines the activity amount of the user in the third period, which is different from the first period and the second period, according to at least one of the first activity amount in the first period and the second activity amount in the second period A third activity may be identified. Then, the integration unit 113 may acquire the activity amount of the user in the inclusive period including the first period, the second period, and the third period by time.

The activity amount acquisition system 110 can continuously and seamlessly acquire the user's activity amount by performing the above-described operation.

As mentioned above, although active mass acquisition system 110 in one mode of the present invention was explained according to an embodiment etc., the present invention is not limited to an embodiment etc. The present invention also includes embodiments obtained by applying variations that will occur to those skilled in the art to the embodiments and the like, and other embodiments realized by arbitrarily combining a plurality of components in the embodiments and the like.

For example, another component may perform the processing that a particular component performs. Further, the order of executing the processing may be changed, or a plurality of processing may be executed in parallel.

Further, the present invention can be realized not only as the activity amount acquisition system 110 but also as an activity amount acquisition method including steps performed by each component constituting the activity amount acquisition system 110. For example, the steps may be performed by a computer system comprising a processor, memory, input / output circuitry and the like. Then, the present invention can be realized as a program for causing a computer system to execute the steps included in those methods. A computer system may be expressed simply as a computer.

Further, the present invention can be realized as a non-temporary computer readable recording medium recording the above program. The recording medium may be an optical disk such as a CD-ROM, a magnetic disk such as a hard disk drive, a magneto-optical disk (MO), a semiconductor memory such as a flash memory, or any other non-temporary It may be a computer readable recording medium. The program may be recorded in advance in a recording medium, or may be recorded in a recording medium by being supplied to the recording medium via a communication network.

For example, when the present invention is realized by a program, each step is performed by executing the program using hardware resources such as a processor of a computer system, a memory, and an input / output circuit. That is, each step is performed by the processor acquiring data from the memory or the input / output circuit and performing an operation, or outputting the operation result to the memory or the input / output circuit or the like. Any type of processor can be used as a processor for executing a program.

Moreover, the several component contained in active mass acquisition system 110 grade | etc., May each be implement | achieved as a circuit for exclusive use or general purpose. These components may be realized as one circuit or as a plurality of circuits.

In addition, the plurality of components included in the active mass acquisition system 110 and the like may be realized as a large scale integration (LSI) which is an integrated circuit (IC: Integrated Circuit). These components may be individually made into one chip, or may be made into one chip so as to include some or all. These components may be provided on one or more chips of one device, or may be provided on a plurality of chips of a plurality of devices.

In addition, LSI may be called system LSI, super LSI, or ultra LSI depending on the degree of integration. Also, the integrated circuit may be realized by a dedicated circuit or a general purpose processor. A programmable field programmable gate array (FPGA) or a reconfigurable processor in which connections and settings of internal circuit cells can be reconfigured may be used.

Further, if integrated circuit technology comes out to replace LSI's as a result of the advancement of semiconductor technology or a derivative other technology, it is naturally also possible to carry out integrated circuitization of a plurality of components included in the activity acquisition system 110 using this technology. It may be done.

Finally, several aspects, such as the active mass acquisition system 110, are shown as an example. These aspects may be combined as appropriate. In addition, any configuration or the like shown in the above-described embodiment and the like may be added.

(First aspect)
The activity amount acquisition system 110 according to one aspect of the present invention includes a first acquisition unit 111, a second acquisition unit 112, and an integration unit 113. The first acquisition unit 111 acquires, by time, a first activity amount, which is an activity amount of the user in the first period, in accordance with the measurement value of the first sensor 101 in the first period in which the user carries the first sensor 101. . The second acquisition unit 112 uses the second activity amount, which is the amount of activity of the user in the second period, according to the measurement value of the second sensor 102 in the second period in which the user is present in the space where the second sensor 102 is installed. Get it separately.

The integration unit 113 integrates the first activity amount in the first period and the second activity amount in the second period to acquire the activity amount of the user in the inclusive period including the first period and the second period by time. Do. At this time, the integrating unit 113 is configured to adjust the first activity amount and the first activity amount in the first period so that the first activity amount level matches the second activity amount level in the overlapping period of the first period and the second period. Adjust at least one of the second activity amount in the two periods. Then, the integration unit 113 integrates the first activity amount and the second activity amount, at least one of which is adjusted.

Thereby, the active mass acquisition system 110 includes the first period in which the first sensor 101 is carried by the user and the second period in which the user is present in the space where the second sensor 102 is installed. The amount of activity of the user can be acquired. Also, the activity amount acquisition system 110 can suppress the change in the level of the activity amount due to the difference between the characteristics of the first sensor 101 carried by the user and the characteristics of the second sensor 102 installed in the space. it can.

Therefore, the active mass acquisition system 110 can appropriately acquire the continuous transition of the user's active mass.

(Second aspect)
For example, the integration unit 113 performs multiplication processing of multiplying by a constant multiplier and addition processing of a constant addend to each or one of the first activity amount in the first period and the second activity amount in the second period. And at least one may be applied. Then, the integration unit 113 may adjust at least one of the first activity amount in the first period and the second activity amount in the second period by applying at least one of the multiplication processing and the addition processing.

Accordingly, the activity acquisition system 110 can simply adjust the entire first activity in the first period or the entire second activity in the second period.

(Third aspect)
For example, the first sensor 101 may be an acceleration sensor that measures the acceleration of the first sensor 101. Thereby, the active mass acquisition system 110 can appropriately acquire the user's active mass according to the acceleration measured by the first sensor 101 carried by the user.

(Fourth aspect)
For example, the first acquisition unit 111 identifies the first period according to the measurement value of the first sensor 101, and determines the first period of the identified first period according to the measurement value of the first sensor 101 in the identified first period. The amount of activity may be acquired hourly.

Thereby, the active mass acquisition system 110 can specify the first period in which the first sensor 101 is carried according to the measurement value of the first sensor 101 which is an acceleration sensor. The measurement value of the first sensor 101, which is an acceleration sensor, can indicate whether the user is carried. Therefore, the active mass acquisition system 110 can appropriately specify the first period for acquiring the first active mass.

(Fifth aspect)
For example, the second sensor 102 may be a radio wave sensor that measures the difference between the radio wave transmitted from the second sensor 102 and the radio wave received by the second sensor 102. Thus, the activity amount acquisition system 110 appropriately acquires the user's activity amount in the space where the second sensor 102 is installed, according to the value measured by the second sensor 102 as the difference between the transmission radio wave and the reception radio wave. it can.

(Sixth aspect)
For example, the second acquisition unit 112 specifies the second period according to the measurement value of the second sensor 102, and the second period in the specified second period according to the measurement value of the second sensor 102 in the specified second period. The amount of activity may be acquired hourly.

Thereby, the active mass acquisition system 110 can specify the second period in which the user exists in the space where the second sensor 102 is installed, according to the measurement value of the second sensor 102 which is a radio wave sensor. The measurement value of the second sensor 102, which is a radio wave sensor, can indicate whether the user is present in the space where the second sensor 102 is installed. Therefore, the active mass acquisition system 110 can appropriately specify the second period for acquiring the second active mass.

(7th aspect)
For example, the integration unit 113 may integrate the first activity amount and the second activity amount in the overlap period according to the reliabilities of the first activity amount and the second activity amount in the overlap period. Thereby, the active mass acquisition system 110 can appropriately integrate the first active mass and the second active mass in the overlapping period according to the reliability.

(Eighth aspect)
For example, the integration unit 113 may integrate the first activity amount and the second activity amount in the overlapping period into the higher one of the first activity amount and the second activity amount in the overlapping period. Thus, the activity amount acquisition system 110 can adopt one of the first activity amount and the second activity amount in the overlapping period, whichever has higher reliability. Therefore, the activity acquisition system 110 can acquire highly reliable activity.

(9th aspect)
For example, according to at least one of the first activity amount in the first period and the second activity amount in the second period, the integration unit 113 uses the activity amount of the user in the third period, which is different from the first period and the second period. A third activity may be identified. Then, the integration unit 113 may acquire the activity amount of the user in the inclusive period including the first period, the second period, and the third period by time.

Accordingly, the activity amount acquisition system 110 complements the activity amount of the user in the third period in which the user does not carry the first sensor 101 and the user is not present in the space where the second sensor 102 is installed. be able to. Therefore, the active mass acquisition system 110 can appropriately acquire the continuous transition of the user's active mass in a longer period.

(Tenth aspect)
The activity amount acquisition method according to one aspect of the present invention includes a first acquisition step (S101), a second acquisition step (S102), and an integration step (S103 and S104).

In the first acquisition step (S101), according to the measurement value of the first sensor 101 in the first period in which the user carries the first sensor 101, the first activity amount, which is the activity amount of the user in the first period, is classified by time get. In the second acquisition step (S102), a second activity amount, which is the amount of activity of the user in the second period, according to the measurement value of the second sensor 102 in the second period in which the user is present in the space where the second sensor 102 is installed. Get by hour.

In the integration step (S103 and S104), by integrating the first activity amount in the first period and the second activity amount in the second period, the activity amount of the user in the inclusive period including the first period and the second period Get by hour. At that time, the first activity amount in the first period and the second activity in the second period are set so that the level of the first activity amount matches the level of the second activity amount in the overlapping period of the first period and the second period. At least one of the amount of activity is adjusted. The first activity amount and the second activity amount, at least one of which is adjusted, are integrated.

Thereby, the user's activity amount in the inclusive period including the first period in which the first sensor 101 is carried by the user and the second period in which the user is present in the space where the second sensor 102 is installed is acquired It becomes possible. In addition, it is possible to suppress the change in the level of the activity amount due to the difference between the characteristics of the first sensor 101 carried by the user and the characteristics of the second sensor 102 installed in the space. Therefore, it becomes possible to appropriately acquire the continuous transition of the user's activity amount.

(The eleventh aspect)
The program in one aspect of the present invention is a program for causing a computer to execute an activity amount acquisition method.

Thus, the computer executes the program to include the first period in which the first sensor 101 is carried by the user and the second period in which the user is present in the space where the second sensor 102 is installed. The amount of activity of the user in the inclusive period can be acquired. In addition, the computer can suppress the change in the level of the activity amount due to the difference between the characteristics of the first sensor 101 carried by the user and the characteristics of the second sensor 102 installed in the space.

Therefore, the computer can appropriately acquire the continuous transition of the user's activity amount.

101 first sensor 102 second sensor 110 activity amount acquisition system 111 first acquisition unit 112 second acquisition unit 113 integration unit

Claims

A first acquisition unit that acquires a first activity amount, which is an activity amount of the user in the first period, according to a measurement value of the first sensor in a first period in which the user carries the first sensor;
The second activity amount, which is the activity amount of the user in the second period, is acquired according to time according to the measurement value of the second sensor in the second period in which the user is present in the space where the second sensor is installed. Acquisition part,
By integrating the first activity amount in the first period and the second activity amount in the second period, the user's activity amount in the inclusive period including the first period and the second period can be timed Equipped with an integration unit to acquire separately,
The integration unit
The first activity amount and the second activity amount in the first period are set so that the level of the first activity amount matches the level of the second activity amount in an overlapping period of the first period and the second period. Adjusting at least one of the second activity amount in a period;
The active mass acquisition system which integrates the said 1st active mass and the said 2nd active mass which said at least one was adjusted.
The integration unit adds a multiplication process of multiplying a constant multiplier and a constant addend to each or one of the first activity amount in the first period and the second activity amount in the second period. The activity according to claim 1, wherein at least one of the first activity amount in the first period and the second activity amount in the second period is adjusted by applying at least one of addition processing. Quantity acquisition system.
The activity amount acquisition system according to claim 1, wherein the first sensor is an acceleration sensor that measures an acceleration of the first sensor.
The first acquisition unit is
Identifying the first period according to the measurement value of the first sensor;
The activity amount acquisition system according to claim 3, wherein the first activity amount in the identified first period is acquired hourly according to the measurement value of the first sensor in the identified first period.
The activity according to any one of claims 1 to 4, wherein the second sensor is a radio wave sensor that measures a difference between the radio wave transmitted from the second sensor and the radio wave received by the second sensor. Quantity acquisition system.
The second acquisition unit is
Identifying the second period according to the measurement value of the second sensor;
The activity amount acquisition system according to claim 5, wherein the second activity amount in the identified second period is acquired hourly according to a measurement value of the second sensor in the identified second period.
The integration unit integrates the first activity amount and the second activity amount in the overlapping period according to the reliabilities with respect to each of the first activity amount and the second activity amount in the overlapping period. The active mass acquisition system according to any one of the above 6.
The integration unit integrates the first activity amount and the second activity amount in the overlapping period to the higher one of the first activity amount and the second activity amount in the overlapping period. The activity amount acquisition system according to Item 7.
The integration unit
According to at least one of the first activity amount in the first period and the second activity amount in the second period, the activity amount of the user in a third period which is different from the first period and the second period Identify certain third activity amounts,
The activity amount acquisition system according to any one of claims 1 to 8, wherein the activity amount of the user in the inclusive period including the first period, the second period, and the third period is acquired hourly.
A first acquisition step of acquiring a first activity amount, which is an activity amount of the user in the first period, according to a measurement value of the first sensor in the first period in which the user carries the first sensor;
The second activity amount, which is the activity amount of the user in the second period, is acquired according to time according to the measurement value of the second sensor in the second period in which the user is present in the space where the second sensor is installed. Acquisition step,
By integrating the first activity amount in the first period and the second activity amount in the second period, the user's activity amount in the inclusive period including the first period and the second period can be timed And an integration step to be acquired separately,
In the integration step:
The first activity amount and the second activity amount in the first period are set so that the level of the first activity amount matches the level of the second activity amount in an overlapping period of the first period and the second period. Adjusting at least one of the second activity amount in a period;
The active mass acquisition method which unifies the said 1st active mass and the said 2nd active mass which said at least one was adjusted.
The program for making a computer perform the active mass acquisition method of Claim 10.