JP6893336B2 - Activity acquisition system and activity acquisition method - Google Patents

Description

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

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

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

However, with a sensor installed on the ceiling of a room or the like, it is difficult to acquire the amount of activity of the user when the user does not exist in the room. Further, with a sensor that measures acceleration, it is difficult to acquire the amount of activity of the user when the user does not carry the sensor. Therefore, it is not easy to appropriately acquire the continuous transition of the user's activity amount.

Therefore, an object of the present invention is to provide an activity amount acquisition system or the like that can appropriately acquire a continuous transition of a user's activity amount.

The activity amount acquisition system according to one aspect of the present invention is the first activity amount of the user in the first period according to the measured value of the first sensor in the first period in which the user carries the first sensor. The activity amount of the user in the second period according to the measured value of the second sensor in the second period in which the user exists in the space where the first acquisition unit and the second sensor are installed to acquire the activity amount by time. By integrating the second acquisition unit that acquires the second activity amount by time, the first activity amount in the first period, and the second activity amount in the second period, the first period and the first period The integrated unit includes an integrated unit that acquires the activity amount of the user by time in the comprehensive period including the second period, and the integrated unit has the first activity amount in the overlapping period 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 is adjusted so that the level of the first activity and the level of the second activity amount match, and at least one of the first activity amounts is adjusted. The adjusted first activity amount and the second activity amount are integrated.

Further, the activity amount acquisition method according to one aspect of the present invention is the activity amount of the user in the first period according to the measured value of the first sensor in the first period in which the user carries the first sensor. According to the first acquisition step of acquiring the first activity amount by time and the measured value of the second sensor in the second period in which the user exists in the space where the second sensor is installed, the user in the second period By integrating the second acquisition step of acquiring the second activity amount, which is the activity amount, with the first activity amount in the first period and the second activity amount in the second period, the first Including the integration step of acquiring the activity amount of the user by time in the comprehensive period including the period and the second period, in the integration step, the first period overlaps 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 is adjusted so that the level of the activity amount and the level of the second activity amount match. At least one of the adjusted first activity amount and the second activity amount are integrated.

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

FIG. 1 is a block diagram showing a 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 a first activity amount having a low reliability and a second activity amount having a high reliability are integrated. FIG. 3B is a graph showing an example of an activity amount in which a first activity amount having a high reliability and a second activity amount having a low reliability are integrated. FIG. 4 is a graph showing an example of a third activity amount specified according to at least one of a first activity amount and a 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. It should be noted that all of the embodiments described below show comprehensive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, the order of operations, and the like shown in the following embodiments are examples, and are not intended to limit the present invention. Further, among the components in the following embodiments, the components not described in the independent claims indicating the highest level concept are described as arbitrary components.

In addition, each of the plurality of drawings used in the following description is a schematic view 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 shown in FIG. 1 is a system for acquiring the activity amount of the 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 can also be expressed as the amount of body movement of the user. Further, FIG. 1 further shows the first sensor 101 and the second sensor 102.

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, a communication network, or the like. , Various information is transmitted from the second acquisition unit 112 to the integration unit 113. Wired communication may be used or wireless communication may be used for communication for transmitting information. For example, information may be transmitted from the first sensor 101 to the first acquisition unit 111 at any time 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 every hour a value indicating the amount of activity of the user carrying the first sensor 101. For example, the first sensor 101 measures a value indicating the amount of activity every minute.

Further, 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 user's pocket or bag. The first sensor 101 may be built in a mobile phone, a smartphone, a tablet terminal, a mobile terminal, or the like carried by the user.

Further, 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 or not the user is carrying the first sensor 101. Further, the first sensor 101 may be a three-axis acceleration sensor that measures the acceleration of the first sensor 101 in each of the three directions perpendicular to each other.

Further, the first sensor 101 may measure the acceleration of the first sensor 101 and the like, and may further measure the amount of activity of the user according to the measured acceleration and 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 activity amount of the user. Further, the first sensor 101 may measure the acceleration of the first sensor 101 or the like 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 an acceleration sensor or a position sensor that measures a value indicating the amount of activity of the user carrying the first sensor 101, and whether or not the user carries the first sensor 101. It may include a temperature sensor, a pressure sensor, or the like for measuring the obtained value.

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 every hour a value indicating the amount of activity of the user existing in the space where the second sensor 102 is installed. Similar to the first sensor 101, the second sensor 102 may measure a value indicating the amount of activity every minute.

Further, the space in which the second sensor 102 is installed is a space in which the user can 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 under the bed in the user's room. Further, the second sensor 102 may be built in a home electric appliance such as an air conditioner.

Further, 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 a 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, the Doppler effect causes a difference 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. This frequency difference indicates the moving speed of the user. That is, this difference in frequency indicates the amount of activity of the user. The second sensor 102 may measure such a difference indicating the amount of activity of the user.

Further, the second sensor 102 may measure the difference between the transmitted radio wave and the received radio wave, and further measure the amount of activity of the user according to the measured difference or the like. 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 or the like as the activity amount of the user. Further, the second sensor 102 may measure the difference between the transmitted radio wave and the received radio wave as the amount of activity of the user.

Further, the difference between the transmitted radio wave and the received radio wave is not limited to the movement of the position of the user, but is affected by the movement of the body surface of the user, and may indicate the heartbeat and respiration of the user. Therefore, the second sensor 102 can measure a value indicating whether or not a user exists in the space in which the second sensor 102 is installed by measuring the difference between the transmitted radio wave and the received radio wave.

As a result, the second sensor 102 can measure a value indicating whether or not the user exists in the space where the second sensor 102 is installed, and the user in the space where the second sensor 102 is installed. A value indicating the amount of activity can be measured. For example, when the user does not move in the space where the second sensor 102 is installed, the second sensor 102 may measure a value indicating that the user exists in the space where 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 transmitted radio wave and the received radio wave is small or finely fluctuates, the second sensor 102 may measure the difference between the transmitted radio wave and the received radio wave as the user's heartbeat, respiration, or the like. Then, when the difference between the transmitted radio wave and the received radio wave fluctuates greatly or roughly, the second sensor 102 may measure the difference between the transmitted radio wave and the received radio wave as the movement of the user or the like.

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

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

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

Further, the first acquisition unit 111 uses the value obtained by applying data processing such as numerical analysis and quantization to the measured value of the first sensor 101 in the first period as the first activity amount in the first period. You may get it. Further, the first sensor 101 may acquire the measured 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 carries the first sensor 101 according to the measured 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 measured acceleration is equal to or less than the threshold value for a longer period than a predetermined period as a period during which the user does not carry the first sensor 101, and the user sets the other period. 1 The sensor 101 may be specified as the first period in which the sensor 101 is carried.

Specifically, the first acquisition unit 111 specifies a period in which the measured acceleration is 0 for one hour or longer as a period during which the user does not carry the first sensor 101, and sets the other period as the user. May be specified as the first period in which the first sensor 101 is carried.

Further, the acceleration is 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 value as the first period. Then, when the measured acceleration is larger than the second threshold value larger than the first threshold value, the first acquisition unit 111 acquires an activity amount larger than 0 as the user activity amount according to the measured acceleration. May be good. That is, when the measured acceleration is larger than the first threshold value and smaller than the second threshold value, the first acquisition unit 111 determines that the user is not substantially moving and is carrying the first sensor 101. May be good.

When the first sensor 101 includes a temperature sensor, the first acquisition unit 111 may specify a period in which a temperature in a predetermined range close to the body temperature is measured by the first sensor 101 as the first period. When the first sensor 101 includes a pressure sensor, the first acquisition unit 111 specifies a period in which the pressure in a predetermined range generated by mounting the first sensor 101 is measured by the first sensor 101 as the first period. You may.

By the above operation, the first acquisition unit 111 can acquire 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 specifies a part of the period in which the amount of activity acquired according to the measured value of the first sensor 101 is 0 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 measured 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 measured 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 for each time according to the measured value of the second sensor 102. That is, the second acquisition unit 112 acquires the amount of activity of the user according to the measured value of the second sensor 102 for each time (for example, every minute). The second acquisition unit 112 may be composed of an electric circuit.

For example, the measured value of the second sensor 102 is acquired for each time. The second acquisition unit 112 is not limited to acquiring the measured values of the second sensor 102 in real time, and may acquire a plurality of measured values of the second sensor 102 at a plurality of times. Then, the second acquisition unit 112 has a second activity amount, which is the activity amount of the user in the second period, according to the measured value of the second sensor 102 in the second period in which the user exists in the space where the second sensor 102 is installed. By time.

Further, the second acquisition unit 112 uses the value obtained by applying data processing such as numerical analysis and quantization to the measured value of the second sensor 102 in the second period as the second activity amount in the second period. You may get it. Further, the second sensor 102 may acquire the measured 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 the second period in which the user exists in the space where the second sensor 102 is installed according to the measured value of the second sensor 102. For example, when the second sensor 102 is a radio wave sensor, the second acquisition unit 112 acquires a value indicating whether or not a user exists in the space where the second sensor 102 is installed as a measured value of the second sensor 102. You may. Then, the second acquisition unit 112 may specify the period indicated by the measured value of the second sensor 102 as the second period that the user exists in the space where the second sensor 102 is installed.

For example, the difference between the transmitted radio wave and the received radio wave is 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 value as the second period. Then, when the measured difference is larger than the second threshold value larger than the first threshold value, the second acquisition unit 112 acquires the activity amount larger than 0 as the user activity amount according to the measured difference. May be good.

That is, when the measured difference is larger than the first threshold value and smaller than the second threshold value, the second acquisition 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 above operation, the second acquisition unit 112 acquires the amount of activity of the user as 0 when the user exists 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 is one of the second periods in which the user exists in the space where the second sensor 102 is installed for a part of the period in which the amount of activity acquired according to the measured value of the second sensor 102 is 0. It can be specified as a department.

Further, the second acquisition unit 112 may acquire the measured 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 measured 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.

By integrating the first activity amount in the first period and the second activity amount in the second period, the integration unit 113 acquires the activity amount of the user in the comprehensive period including the first period and the second period by time. Information processing department.

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

Further, 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 in the overlapping period between the first period and the second period. Match the level of the first activity and the level of the second activity. That is, the integration unit 113 has the first activity amount and the second activity amount in the first period so that the level of the first activity amount and the level of the second activity amount match in the overlapping period of the first period and the second period. Adjust at least one of the second activity during the period.

Here, the level of the first activity amount in the overlapping period is the degree of the magnitude of the first activity amount in the overlapping period, and is the cumulative value, the average value, the maximum value, the minimum value, etc. of the first activity amount in the overlapping period. It may be. Similarly, the level of the second activity amount in the overlapping period is the degree of the magnitude of the second activity amount in the overlapping period, such as the cumulative value, the average value, the maximum value or the minimum value of the second activity amount in the overlapping period. It may be.

For example, in the adjustment, the integration unit 113 may multiply the first activity amount in the first period by a constant multiplier, or may multiply the second activity amount in the second period by a constant multiplier. Alternatively, the integration unit 113 may add a constant addition to the first activity amount in the first period, or may add a constant addition to the second activity amount in the second period. Alternatively, the integration unit 113 may apply the combination of these addition processing and 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 be less than one, and the constant multiplier may be less than zero. Then, the integration unit 113 integrates the first activity amount and the second activity amount adjusted by at least one of them. As a result, the integration unit 113 acquires the amount of user activity in the comprehensive period including the first period and the second period by time.

Further, for example, the integration unit 113 outputs activity amount information indicating the activity amount acquired by integrating the first period and the second period. The integration unit 113 may output the 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 the activity amount information to the 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 it on the display. This 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 can be used for confirming the safety of the user, confirming the life pattern of the user, confirming the health condition of the user, and the like. In addition, the activity amount information may be used as information for operating the home appliance according to the user's life pattern.

As described above, the activity acquisition system 110 includes a first acquisition unit 111, a second acquisition unit 112, and an integration unit 113. 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, or the like.

Further, the activity amount acquisition system 110 may be one device or may be composed 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 another space. Further, although the activity amount acquisition system 110 acquires the activity amount of one user here, the activity amount of each of a plurality of users may be acquired.

Further, the first acquisition unit 111 and the second acquisition unit 112 may form 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. Further, the activity amount acquisition system 110 may further include the first sensor 101 or the second sensor 102. Further, the activity amount acquisition system 110 may include the first sensor 101 for each user, or may include the second sensor 102 for each user.

Further, the activity amount acquisition system 110 may be included in a mobile phone, a smartphone, a tablet terminal, a mobile terminal, or the like together with the first sensor 101. Alternatively, the activity amount acquisition system 110 may be included in the 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 until 21:00 is acquired. Further, from the second sensor 102, the second activity amount in the second period in which the user exists in the space where the second sensor 102 is installed is acquired. In this example, the second activity amount in the second period from 20:00 to the present is acquired.

Even when the actual activity amount does not change significantly in the first period and the second period, the level of the first activity amount in the first period is due to 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 connected, the transition of the activity amount in the comprehensive period including the first period and the second period can be appropriately obtained. May not be.

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, the integration unit 113 sets the first activity amount in the first period and the second activity amount in the second period so that the level of the first activity amount and the level of the second activity amount in this overlapping period match. Adjust at least one of them.

As a result, the integration unit 113 brings the level of the first activity amount and the level of the second activity amount in the overlapping period close to each other, and matches or substantially matches the level of the first activity amount and the level of the second activity amount in the overlapping period. Let me. In other words, the integration unit 113 sets the difference between the level of the first activity amount and the level of the second activity amount in the overlapping period to be equal to or less than the threshold value.

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

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 the calculated difference value is used in the second period. It may be added to the second activity amount at 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 the calculated difference value is used in the first period. It may be added to the first activity amount at each time.

Further, the integration unit 113 applies a constant multiplier to 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 are closer to each other at each time of the overlapping period. A combination of multiplication processing and addition processing for adding a certain addition may be applied. Further, 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 is generated by the difference between the characteristics of the first sensor 101 and the characteristics of the second sensor 102 by applying the adjustment to the entire first period or the second period, which is limited to the overlapping period. It is possible to suppress the harmful effects of this.

Then, the integration unit 113 integrates the first activity amount and the second activity amount adjusted by at least one of them. As a result, the integration unit 113 can appropriately acquire the amount of activity of the user in the comprehensive 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 level of the first activity and the level of the second activity match in the overlapping period from 20:00 to 21:00. The amount is being adjusted. Then, the integration unit 113 acquires the activity amount of the user in the comprehensive period including the first period and the second period by integrating the first activity amount and the adjusted second activity amount.

Further, for example, the method in which the user carries the first sensor 101 may differ depending on the day, and the position where the user exists 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 coefficient such as a constant multiplier or a constant addition 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 an overlapping period between the first period and the second period occurs.

The integration unit 113 may integrate the first activity amount and the second activity amount into the average value of the first activity amount and the second activity amount for each time of the overlapping period. Alternatively, the integration unit 113 sets 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 for the overlapping period. It 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 a first activity amount having a low reliability and a second activity amount having a high reliability are integrated by the activity amount acquisition system 110 shown in FIG. For example, when the reliability of the first activity amount acquired according to the measured value of the first sensor 101 is low because the measured value of the first sensor 101 changes depending on how the user carries the first sensor 101. There is. In addition, the measurement accuracy of the second sensor 102 may be high, and the reliability of the second activity amount acquired according to 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 between the first period and the second period. That is, as shown in FIG. 3A, the integration unit 113 integrates the first activity amount and the second activity amount into the second activity amount during the overlapping period.

FIG. 3B is a graph showing an example of an activity amount in which a first activity amount having a high reliability and a second activity amount having a low reliability are integrated by the activity amount acquisition system 110 shown in FIG. For example, since the first sensor 101 is attached to the user and is not affected by obstacles or the like, the reliability of the first activity amount acquired according to the measured 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 between the first period and the second period. That is, as shown in FIG. 3B, the integration unit 113 integrates the first activity amount and the second activity amount into the first activity amount during the overlapping period.

In each of the examples of FIGS. 3A and 3B, the integration unit 113 first sets the first activity amount and the second activity amount for the overlapping period based on the reliability of the first activity amount and the second activity amount, respectively. 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 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. ..

In addition, the reliability of each of the first activity amount and the second activity amount may be predetermined. For each of the first period and the second period, the longer the period, the higher the reliability may be set.

Further, there may be a third period different from the first period in which the user carries the first sensor 101 and the second period in which the user exists in the space where the second sensor 102 is installed. Further, the integration unit 113 may specify the third activity amount, which is the activity amount of the user in the third period different from the first period and the second period, according to at least one of the first activity amount and the second activity amount.

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

As a result, 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 comprehensive period including the first period, the second period, and the third period for each hour.

As described above, in this example, the third activity from 16:30 to 17:30 is linearly predicted by the second activity at 16:30 and the first activity 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.

Further, in this example, after at least one of the first activity amount and the second activity amount is adjusted so that the level of the first activity amount and the level of the second activity amount in the overlapping period match, the first activity amount is adjusted. The third activity amount in the third period is specified by the first activity amount and the second activity amount. However, before the adjustment, the third activity amount in the third period may be specified by the first activity amount or the second activity amount. Then, the specified third activity amount may be adjusted in the same manner as the first activity amount or the second activity amount used for specifying 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 activity amount of the user by performing the operation shown in FIG.

First, the first acquisition unit 111 sets the first activity amount, which is the activity amount of the user in the first period, by time according to the measured value of the first sensor 101 in the first period in which the user carries the first sensor 101. Acquire (S101). When acquiring the first activity amount, the first acquisition unit 111 may specify the first period according to the measured value of the first sensor 101. Then, the first acquisition unit 111 may acquire the first activity amount in the specified first period by time according to the measured value of the first sensor 101 in the specified first period.

Next, the second acquisition unit 112 has a second activity, which is the amount of activity of the user in the second period, according to the measured value of the second sensor 102 in the second period in which the user exists in the space where the second sensor 102 is installed. The quantity is acquired by time (S102). When the second acquisition unit 112 acquires the second activity amount, the second acquisition unit 112 may specify the second period according to the measured value of the second sensor 102. Then, the second acquisition unit 112 may acquire the second activity amount in the specified second period by time according to the measured 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. Further, 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 integration unit 113 uses the first activity amount and the first activity amount in the first period so that the level of the first activity amount and the level of the second activity amount match in the overlapping period between the first period and the second period. At least one of the second activity amount in the two periods is adjusted (S103). That is, 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, so that the first activity is performed in the overlapping period between the first period and the second period. Match the amount level with the second activity level.

The integration unit 113 has at least one of a multiplication process of multiplying each or one of the first activity amount in the first period and the second activity amount in the second period by a certain multiplier and an addition process of adding a certain addition. The above adjustment may be made 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 activity amount in the comprehensive period including the first period and the second period. Obtained by time (S104). At that time, the integration unit 113 integrates the first activity amount and the second activity amount adjusted by at least one of them.

Further, in the integration of the first activity amount and the second activity amount, the integration unit 113 sets the first activity amount and the second activity amount in the overlapping period according to the reliability of the first activity amount and the second activity amount in the overlapping period. 2 The amount of activity may be integrated. For example, the integration unit 113 may integrate the first activity amount and the second activity amount in the overlapping period with the one having the higher reliability among the first activity amount and the second activity amount in the overlapping period.

Further, the integration unit 113 determines the amount of activity 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 certain third activity amount may be specified. Then, the integration unit 113 may acquire the amount of activity of the user in the comprehensive 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 activity amount of the user by performing the above operation.

Although the activity amount acquisition system 110 according to one aspect of the present invention has been described above according to the embodiment and the like, the present invention is not limited to the embodiment and the like. The present invention also includes a form obtained by subjecting a person skilled in the art to a modification of the embodiment or the like, and another form realized by arbitrarily combining a plurality of components in the embodiment or the like.

For example, another component may execute a process executed by a specific component. Further, the order in which the processes are executed may be changed, or a plurality of processes may be executed in parallel.

Further, the present invention can be realized not only as an 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, those steps are performed by a computer system equipped with a processor, memory, input / output circuits, 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 simply referred to as a computer.

Further, the present invention can be realized as a non-temporary computer-readable recording medium on which the above program is recorded. 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 another non-temporary. A computer-readable recording medium may be used. Further, the program may be recorded in advance on a recording medium, or may be recorded on the 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 executed by executing the program by utilizing hardware resources such as a processor, a memory, and an input / output circuit of a computer system. That is, each step is executed when the processor acquires data from the memory or the input / output circuit or the like and performs an operation, or outputs the operation result to the memory or the input / output circuit or the like. Any type of processor can be used as the processor for executing the program.

Further, the plurality of components included in the activity amount acquisition system 110 and the like may be realized as dedicated or general-purpose circuits, respectively. These components may be realized as one circuit or as a plurality of circuits.

Further, a plurality of components included in the activity acquisition system 110 or the like may be realized as an LSI (Large Scale Integration) which is an integrated circuit (IC). These components may be individually integrated into one chip, or may be integrated into one chip so as to include a part or all of them. 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.

Further, the LSI may be referred to as a system LSI, a super LSI, or an ultra LSI depending on the degree of integration. Further, the integrated circuit may be realized by a dedicated circuit or a general-purpose processor. A programmable FPGA (Field Programmable Gate Array) or a reconfigurable processor in which the connections and settings of internal circuit cells can be reconfigured may be utilized.

Furthermore, if an integrated circuit technology that replaces an LSI appears due to advances in semiconductor technology or another technology derived from it, it is natural that the technology will be used to create an integrated circuit of a plurality of components included in the activity acquisition system 110. It may be done.

Finally, a plurality of aspects such as the activity amount acquisition system 110 will be shown as an example. These aspects may be combined as appropriate. In addition, any configuration or the like shown in the above-described embodiment or the like may be added.

(First aspect)
The activity 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 the first activity amount, which is the activity amount of the user in the first period, for each time according to the measured value of the first sensor 101 in the first period in which the user carries the first sensor 101. .. The second acquisition unit 112 sets the second activity amount, which is the activity amount of the user in the second period, in time according to the measured value of the second sensor 102 in the second period in which the user exists in the space where the second sensor 102 is installed. Get it separately.

By integrating the first activity amount in the first period and the second activity amount in the second period, the integration unit 113 acquires the activity amount of the user in the comprehensive period including the first period and the second period by time. To do. At that time, the integration unit 113 uses the first activity amount and the first activity amount in the first period so that the level of the first activity amount and the level of the second activity amount match in the overlapping period between the first period and the second period. Adjust at least one of the second activity in the two periods. Then, the integration unit 113 integrates the first activity amount and the second activity amount adjusted by at least one of them.

As a result, the activity acquisition system 110 is included in the comprehensive period including the first period in which the first sensor 101 is carried by the user and the second period in which the user exists in the space in which the second sensor 102 is installed. The amount of activity of the user can be acquired. Further, the activity amount acquisition system 110 can suppress a change in the activity amount level due to a 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 activity amount acquisition system 110 can appropriately acquire the continuous transition of the activity amount of the user.

(Second aspect)
For example, the integration unit 113 performs a multiplication process of multiplying each or one of the first activity amount in the first period and the second activity amount in the second period by a certain multiplier and an addition process of adding a certain addition. At least one of the above 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 process and the addition process.

As a result, the activity amount acquisition system 110 can simply adjust the entire first activity amount in the first period or the entire second activity amount 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. As a result, the activity amount acquisition system 110 can appropriately acquire the activity amount of the user according to the acceleration measured by the first sensor 101 carried by the user.

(Fourth aspect)
For example, the first acquisition unit 111 specifies the first period according to the measured value of the first sensor 101, and the first in the specified first period according to the measured value of the first sensor 101 in the specified first period. The amount of activity may be acquired by time.

Thereby, the activity amount acquisition system 110 can specify the first period in which the first sensor 101 is carried according to the measured value of the first sensor 101 which is an acceleration sensor. The measured value of the first sensor 101, which is an acceleration sensor, may indicate whether or not the user is carrying it. Therefore, the activity amount acquisition system 110 can appropriately specify the first period for acquiring the first activity amount.

(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. As a result, the activity amount acquisition system 110 can appropriately acquire the activity amount of the user 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 transmitted radio wave and the received radio wave. it can.

(6th aspect)
For example, the second acquisition unit 112 specifies the second period according to the measured value of the second sensor 102, and the second in the specified second period according to the measured value of the second sensor 102 in the specified second period. The amount of activity may be acquired by time.

Thereby, the activity amount 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 measured value of the second sensor 102 which is a radio wave sensor. The measured value of the second sensor 102, which is a radio wave sensor, may indicate whether or not the user exists in the space where the second sensor 102 is installed. Therefore, the activity amount acquisition system 110 can appropriately specify the second period for acquiring the second activity amount.

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

(8th aspect)
For example, the integration unit 113 may integrate the first activity amount and the second activity amount in the overlapping period with the one having the higher reliability among the first activity amount and the second activity amount in the overlapping period. As a result, the activity amount acquisition system 110 can adopt the one with the higher reliability of the first activity amount and the second activity amount in the overlapping period. Therefore, the activity amount acquisition system 110 can acquire a highly reliable activity amount.

(9th aspect)
For example, the integration unit 113 determines the amount of activity 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 certain third activity amount may be specified. Then, the integration unit 113 may acquire the amount of activity of the user in the comprehensive period including the first period, the second period, and the third period by time.

As a result, 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 does not exist in the space where the second sensor 102 is installed. be able to. Therefore, the activity amount acquisition system 110 can appropriately acquire the continuous transition of the user's activity amount over a longer period of time.

(10th aspect)
The activity amount acquisition method in 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), the first activity amount, which is the activity amount of the user in the first period, is divided by time according to the measured value of the first sensor 101 in the first period in which the user carries the first sensor 101. get. In the second acquisition step (S102), the second activity amount, which is the activity amount of the user in the second period, according to the measured value of the second sensor 102 in the second period in which the user exists in the space where the second sensor 102 is installed. By time.

In the integration step (S103 and S104), the activity amount of the user in the comprehensive period including the first period and the second period is integrated by integrating the first activity amount in the first period and the second activity amount in the second period. By time. At that time, the first activity amount in the first period and the second in the second period so that the level of the first activity amount and the level of the second activity amount match in the overlapping period between 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 adjusted at least one of them are integrated.

As a result, the amount of activity of the user in the comprehensive period including the first period in which the first sensor 101 is carried by the user and the second period in which the user exists in the space where the second sensor 102 is installed is acquired. Will be possible. In addition, it is possible to suppress a change in the level of activity due to a 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 is possible to appropriately acquire the continuous transition of the user's activity amount.

(11th aspect)
The program in one aspect of the present invention is a program for causing a computer to execute an activity amount acquisition method.

As a result, the computer includes the first period in which the first sensor 101 is carried by the user and the second period in which the user exists in the space where the second sensor 102 is installed by executing the program. The amount of user activity during the inclusion period can be obtained. Further, the computer can suppress the change in the activity level 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 1st sensor 102 2nd sensor 110 Activity acquisition system 111 1st acquisition unit 112 2nd acquisition unit 113 Integration unit

Claims (11)

A first acquisition unit that acquires the first activity amount, which is the activity amount of the user in the first period, by time according to the measured value of the first sensor in the first period in which the user carries the first sensor.
According to the measured value of the second sensor in the second period in which the user exists in the space where the second sensor is installed, the second activity amount, which is the activity amount of the user in the second period, is acquired for each time. Acquisition department and
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 comprehensive period including the first period and the second period can be timed. Equipped with an integration department to be acquired separately
The integrated part
The first activity amount and the second activity amount in the first period so that the level of the first activity amount and the level of the second activity amount match in the overlapping period between the first period and the second period. Adjust at least one of the second activity during the period
An activity amount acquisition system that integrates the first activity amount and the second activity amount in which at least one of them is adjusted. The integration unit adds a multiplication process for multiplying each or one of the first activity amount in the first period and the second activity amount in the second period and a certain addition. 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 the addition processes. Quantity acquisition system. The activity amount acquisition system according to claim 1 or 2, wherein the first sensor is an acceleration sensor that measures the acceleration of the first sensor. The first acquisition unit
The first period is specified according to the measured value of the first sensor, and the first period is specified.
The activity amount acquisition system according to claim 3, wherein the first activity amount in the specified first period is acquired by time according to the measured value of the first sensor in the specified 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 a radio wave transmitted from the second sensor and a radio wave received by the second sensor. Quantity acquisition system. The second acquisition unit
The second period is specified according to the measured value of the second sensor.
The activity amount acquisition system according to claim 5, wherein the second activity amount in the specified second period is acquired by time according to the measured value of the second sensor in the specified second period. Claim 1 that the integration unit integrates the first activity amount and the second activity amount in the overlapping period according to the reliability of each of the first activity amount and the second activity amount in the overlapping period. The activity amount acquisition system according to any one of 6 to 6. The integration unit is claimed to integrate the first activity amount and the second activity amount in the overlapping period with the higher reliability of the first activity amount and the second activity amount in the overlapping period. Item 7. The activity amount acquisition system according to item 7. The integrated part
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 the third period different from the first period and the second period. Identify a third amount of activity
The activity amount acquisition system according to any one of claims 1 to 8, wherein the activity amount of the user in the comprehensive period including the first period, the second period, and the third period is acquired for each hour. According to the measurement value of the first sensor in the first period in which the user carries the first sensor, the first acquisition step of acquiring the first activity amount, which is the activity amount of the user in the first period, by time, and the first acquisition step.
According to the measured value of the second sensor in the second period in which the user exists in the space where the second sensor is installed, the second activity amount, which is the activity amount of the user in the second period, is acquired for each time. Acquisition step and
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 comprehensive period including the first period and the second period can be timed. Including integration steps to get separately
In the integration step
The first activity amount and the second activity amount in the first period so that the level of the first activity amount and the level of the second activity amount match in the overlapping period between the first period and the second period. Adjust at least one of the second activity during the period
An activity amount acquisition method that integrates the first activity amount and the second activity amount in which at least one of them is adjusted. A program for causing a computer to execute the activity amount acquisition method according to claim 10.

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