JP2020110422A - Information processing device - Google Patents

Abstract

To provide an information processing device which accurately detects a state of person.SOLUTION: The information processing device of this invention comprises: distance image acquisition means C which acquires a distance image of a prescribed area including a bed B; detection means which detects the motion of a person in the distance image on the basis of the distance image; measurement means S which measures biological information of a person on the bed from a measurement device; and monitoring means 14 which performs monitoring processing on the biological information, on the basis of the motion of the person and the biological information. The monitoring means performs the monitoring processing on the basis of the measured biological information and a previously generated biological reference information and newly generates the biological reference information to use later on the basis of the measured biological information to use for the monitoring processing.SELECTED DRAWING: Figure 1

Description

The present invention relates to an information processing device and an information processing method.

In recent years, the elderly population is increasing and the demand for nursing care is increasing. On the other hand, caregivers require many caregivers, which poses a problem that the work burden on the caregivers and labor costs increase. Therefore, as described in Patent Document 1, many monitoring systems have been developed for monitoring a person such as a cared person using an image captured by a distance image sensor.

In the monitoring system disclosed in Patent Document 1, the position of the bed is extracted from the distance image, the area of the person is detected, and the movement of the person is determined. Specifically, the position of the bed is obtained from the frequency distribution of height in the longitudinal direction and the lateral direction of the bed. In addition, by detecting the position of an object with respect to a predetermined height position, the motion of a person determines the motion of the person such as a bed rest state, an upper body upright state, and a standing state.

Further, Patent Document 2 describes a sensor device that detects biological information of a person on a bed. The sensor device described in Patent Document 2 is installed in a bed and detects biological information such as a person's heartbeat and respiration by irradiating an electromagnetic wave. The state of the person can be monitored based on the biometric information thus detected.

JP 2012-030042A JP, 2018-000295, A

However, the above-mentioned technique has a problem that the state of the person who is a cared person cannot be detected more accurately. This is because, in the above-described technique, the posture and the state of the person are constantly changing, although the posture and the biometric information of the person are detected. Therefore, it is assumed that the criterion for monitoring is also constantly changing.

Therefore, an object of the present invention is to provide an information processing apparatus capable of solving the above-mentioned problem that the state of a person cannot be accurately detected.

An information processing apparatus according to one aspect of the present invention is
Distance image acquisition means for acquiring a distance image of a predetermined area including the bed,
Based on the distance image, a detection unit that detects a motion of a person in the distance image,
Measuring means for measuring the biological information of the person on the bed from the measuring device,
Based on the movement of the person and the biological information, monitoring means for performing a monitoring process for the biological information,
Equipped with
The monitoring means performs the monitoring process based on the measured biological information and biological reference information generated in advance, and the new biological reference to be used later based on the measured biological information used for the monitoring process. Generate information,
Take the configuration.

Then, in the above information processing device,
The monitoring means performs the monitoring process based on the biometric information and the biometric reference information measured by dividing a certain period into a plurality of periods, and the biometric information measured in the plurality of periods used for the monitoring process. Generate the new biometric reference information to be used later based on
Take the configuration.

Further, in the above information processing device,
In the monitoring process, the monitoring unit uses the new biological reference information generated based on the biological information measured during the immediately preceding monitoring process,
Take the configuration.

Further, in the above information processing device,
The monitoring means is the measurement device in a state where the motion of the person is in a lying position in which the person is lying on the bed, and the measured biometric information is not preset on the bed. When different from the absence reference value information that is a measured value from, while performing the monitoring process based on the measured biological information and the biological reference information, based on the measured biological information used for the monitoring process Generating the new biometric reference information,
Take the configuration.

Further, in the above information processing device,
When the movement of the person changes by a predetermined reference or more, the monitoring unit generates the new biometric reference information based on the biometric information measured after that, and further generates the new biometric reference information. Performing the monitoring process based on the biological information measured in
Take the configuration.

Further, in the above information processing device,
The monitoring means, when the measured biometric information is an unmonitorable value in which the monitoring process cannot be continued due to a preset standard, generates the new biometric standard information based on the subsequently measured biometric information. , Performing the monitoring process based on the generated new biological reference information and the biological information measured after that,
Take the configuration.

Further, in the above information processing device,
Equipped with exit detection means for detecting the exit of a person from a predetermined area including the bed,
When the exit of a person is detected, the monitoring unit generates the new biometric reference information based on the biometric information measured thereafter, and measures the generated new biometric reference information and further thereafter. Performing the monitoring process based on the biological information,
Take the configuration.

Further, in the above information processing device,
When the monitoring means detects the exit of the person, the motion of the person is in a lying position in which the person is lying on the bed, and the measured biometric information indicates that the person is on the bed. Is different from the absence reference value information which is a measurement value from the measuring device in a state where there is not, further, when the measured biological information is in a specific state that is not a preset unmonitorable value, While performing the monitoring process based on the biological information and the biological reference information, the new biological reference information to be used later based on the measured biological information used for the monitoring process is generated,
When it is not the specific state, the monitoring process is stopped,
Take the configuration.

Further, an information processing method which is another embodiment of the present invention is
The information processing device
Obtain a range image of a predetermined area including the bed,
Based on the distance image, detects the movement of a person in the distance image,
Measure the biometric information of the person on the bed from the measuring device,
When performing a monitoring process for the biometric information based on the motion of the person and the biometric information, the monitoring process is performed based on the measured biometric information and pre-generated biometric reference information, and the monitoring is performed. Generate the new biological reference information to be used later based on the measured biological information used for processing,
Take the configuration.

In addition, a program that is another form of the present invention,
In the information processing device,
Obtain a range image of a predetermined area including the bed,
Based on the distance image, detects the movement of a person in the distance image,
Measure the biometric information of the person on the bed from the measuring device,
When performing a monitoring process for the biometric information based on the motion of the person and the biometric information, the monitoring process is performed based on the measured biometric information and pre-generated biometric reference information, and the monitoring is performed. Generate the new biological reference information to be used later based on the measured biological information used for processing,
Execute processing,
Take the configuration.

The present invention configured as above can accurately detect the state of a person.

It is a schematic diagram showing the composition of the information processing system in Embodiment 1 of the present invention. It is a block diagram which shows the structure of the monitoring server disclosed by FIG. It is a figure which shows the mode of image processing by the monitoring server disclosed in FIG. It is a figure which shows the mode of image processing by the monitoring server disclosed in FIG. It is a figure which shows the mode of processing of biometric information by the monitoring server disclosed by FIG. It is a figure which shows the mode of processing of biometric information by the monitoring server disclosed by FIG. 3 is a flowchart showing the processing operation of the monitoring server disclosed in FIG. 1.

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. 1 and 2 are diagrams showing the configuration of the information processing system. 3 to 7 are diagrams for explaining the processing operation of the information processing system. The configuration and operation of the information processing system will be described below with reference to the drawings.

The information processing system according to the present invention is an information processing system for monitoring the behavior and biological information of a person P who is a monitoring target, such as a cared person or a monitored person. The information processing system includes a monitoring server 10, a range image camera C, a biometric sensor S installed under the bed or on the ceiling, a mobile terminal 20, and a monitoring terminal 30.

The distance image camera C (imaging device) is arranged at a position where a distance image can be photographed in the region R in which the bed B on which the person P to be monitored lies is arranged. For example, the distance image camera C is provided on the ceiling of a medical facility, a nursing facility, or one room in the home, and the entire bed B is placed at a position within the image. The range image camera C is not necessarily installed on the ceiling, and may be installed on any place such as a wall or a stand. The bed B to be photographed may be any bed such as a futon.

The range image camera C captures a range image having pixel values as distance values. For example, the range image camera C may be of a type that measures the distance from the round-trip time when the infrared laser is projected onto the target, or may be any type of image capturing device. Then, the range image camera C has a function of shooting a range image at regular time intervals or at the timing of receiving a shooting instruction, and transmitting the range image to the monitoring server 10 described later. The function of the monitoring server 10 may be installed in the distance image camera C. That is, the function of the monitoring server 10 may be realized by the information processing device mounted on the range image camera C.

The biometric sensor S (measuring device) is installed in the bed B on which the person P to be monitored lies. The biological sensor S is, for example, a microwave sensor, irradiates the person P lying on the bed B with microwaves, and uses the reflected waves to detect the heartbeat, respiration, and body movement of the person P as biological information. To do. However, the biometric sensor S may be a measurement device that detects biometric information such as the heartbeat, respiration, and body movement of the person P by any method, and the biometric information to be detected necessarily represents heartbeat, respiration, and body movement. It is not limited to being information. In addition, in the example of FIG. 1, the case where the biometric sensor S is installed in the bed B is illustrated, but the biosensor S may be installed in any place such as the ceiling.

The mobile terminal 20 is an information processing terminal such as a smartphone that is held and operated by a user U who is a supervisor who monitors and cares for a person who is a cared person. The mobile terminal 20 is connected to and can communicate with the monitoring server 10 via wireless communication, and can input an operation instruction of the user U to the monitoring server 10 as described later. For example, the mobile terminal 20 displays a range image captured by the range image camera C on the display screen, and also displays an operation screen on which an operation instruction regarding monitoring can be input. When the user U inputs a touch operation on the screen, the operation instruction is transmitted from the mobile terminal 20 to the monitoring server 10. In addition, the mobile terminal 20 also has a function of receiving a notice of abnormality of the person who is the cared person from the monitoring server 10 and notifying the user U of the abnormality.

The monitoring terminal 30 is an information processing terminal operated by a user U who is a person who monitors and monitors a person who is a cared person. The monitoring terminal 30 is installed in a place such as a monitoring room in which a user U such as a monitor is enrolled, and can be operated by a plurality of users U. Similar to the mobile terminal 20 described above, the monitoring terminal 30 displays a distance image on the display screen, enables input of operation instructions regarding monitoring, and transmits such operation instructions to the monitoring server 10 or issuance from the monitoring server 10. It has a function of receiving a notice of abnormality of a person to be notified and notifying the user U.

The monitoring server 10 is a server device (information processing device) having a computing device and a storage device. Then, as shown in FIG. 2, the monitoring server 10 has a distance image acquisition unit 11, a biological information measurement unit 12, a motion detection unit 13, a monitoring unit 14, and a notification unit, which are constructed by the arithmetic device executing a program. 15 are provided. The monitoring server 10 also includes a reference information storage unit 16 formed in the storage device. Hereinafter, each configuration will be described in detail, and the operation of the monitoring server 10 will also be described with reference to the flowchart in FIG. 7.

The distance image acquisition unit 11 (distance image acquisition means) periodically acquires, from the distance image camera C, a distance image including the bed B captured by the distance image camera C and the person P to be monitored as described above. get. Then, by passing the acquired distance image to the motion detection unit 13, the distance image is used for motion detection processing and monitoring processing described later.

The biometric information measurement unit 12 (measurement means) periodically acquires biometric information (measured values) of the heartbeat, respiration, and body movement of the person P on the bed B detected by the biometric sensor S. For example, the biological information is represented by the average value of the level of heartbeat, respiration, and body movement for each fixed period, as shown in the upper part of FIG. Then, by passing the acquired biometric information to the monitoring unit 14, the biometric information is used for the monitoring process described later. Since the biometric sensor S measures an event that occurs on the bed B, the biometric information measurement unit 12 acquires the measurement value even when the person P does not exist on the bed B, and the measurement unit 14 monitors the measurement value. Have passed on.

The motion detection unit 13 (detection means) acquires a distance image via the distance image acquisition unit 11 (step S1 in FIG. 7), detects the person P in the distance image, and moves the person P. A motion detection process for detecting is performed. Specifically, the motion detection unit 13 detects the area of the bed B in the distance image and the person P. For example, the motion detection unit 13 first specifies the area of the bed B based on the coordinates in the distance image that specifies the area of the bed B that is specified in advance. Then, the motion detection unit 13 detects an object existing in the area of the bed B, and detects the highest point and the center of gravity of the person P from the object. At this time, the person detection unit 13 detects, for example, an object formed of individual lumps in the distance image 21, and detects the person from the mass of the detected object, the positional relationship between the objects, the volume ratio (area ratio), and the like. To detect.

Then, the motion detection unit 13 detects the motion of the person P from the detected positional relationship between the highest vertex of the person P and the position of the center of gravity. Specifically, in this embodiment, the posture of the person P on the bed B is detected (step S2 in FIG. 7). At this time, the motion detection unit 13 detects the height and the position of the center of gravity of the person P, and determines the motion of the person P from the positional relationship between the height, the position of the center of gravity, and the distance image 21.

In particular, the motion detection unit 13 detects whether or not the person P is lying on the bed B, that is, whether or not the person P is in the “prone position” (Yes in step S3 of FIG. 7 ). For example, as shown in FIG. 3, the motion detection unit 13 has a positional relationship in which the highest point of the person P and the center of gravity are connected on the plane of the bed B, and each position is slightly higher than the preset supine height position. When the position does not exceed the set position, the motion of the person P is determined to be in the “decubitus position”. Here, in FIG. 3, the upper diagram shows the distance image 21, and the lower diagram shows the bed B as seen from the side. The same applies to FIG. 4 described below.

The motion detection unit 13 also detects whether or not the person P has changed the motion (posture) on the bed B. For example, the motion detection unit 13 detects that the motion has changed by detecting that the positions of the highest vertex and the center of gravity of the person detected from the distance image have changed. As an example, when the maximum vertex of the person or the position of the center of gravity changes by a predetermined value or more, it is detected that the motion has changed. At this time, the motion detection unit 13 also detects a motion change when the person P changes from the supine position in the supine position as illustrated in FIG. 3 to the sideways position in the lateral position illustrated in FIG. 4. The detection of the motion of the person P described above may be performed by any method.

Here, the motion detection unit 13 always performs the above-described motion detection process and notifies the monitoring unit 14 of the detected motion (posture). At this time, the motion detection unit 13 may notify the monitoring unit 14 of the detected motion at a constant time interval, and when the detected motion changes, the motion detecting unit 13 may monitor the fact that the motion has changed or the changed motion. 14 may be notified. Thereby, the monitoring unit 14 can always recognize the motion of the person P.

The monitoring unit 14 (monitoring means) performs monitoring processing on the biometric information based on the motion of the person P detected as described above and the biometric information of the person P. In particular, when the detected motion of the person P is the above-mentioned “decubitus position” (Yes in step S3 of FIG. 7), the monitoring unit 14 monitors the biological information detected by the biological sensor S. That is, the monitoring unit 14 does not perform the monitoring process on the biometric information in a state other than the lying position (No in step S3 of FIG. 7 ). Then, specifically, the monitoring unit 14 determines that the biometric information detected by the biometric sensor S (step S4 in FIG. 7) is stored as the absent reference value information (person absent value) stored in the reference information storage unit 16 in advance. By comparison, unlike the absence reference value information, when the biometric information is determined to be the valid value of the person P (No in step S5 of FIG. 7), the monitoring process for the detected biometric information is performed. Conversely, when the biometric information detected by the biometric sensor S is equivalent to the absence reference value information (Yes in step S5 of FIG. 7), the monitoring unit 14 does not perform the monitoring process on the detected biometric information.

Here, the absence reference value information is a measurement value from the biometric sensor S in a state where the person P does not exist on the bed B stored in advance, as shown in the lower diagram of FIG. 5. As described above, the absence reference value information shows a slight waveform due to external vibration or the like, but is obviously different from the waveform when the person P is present on the bed B. Therefore, it is possible to determine that the biometric information is different from the absence reference value information by examining the difference between the amplitude and the frequency of the biometric information and the absence reference value information for a certain period. As a result, it is possible to suppress the monitoring process of the measurement value from the biometric sensor S when the person P does not exist, and more reliably with respect to the biometric information obtained by measuring the heartbeat, respiration, body movement, etc. of the person P. Monitoring processing can be performed.

As the monitoring process, the monitoring unit 14 measures the biometric information for a certain period of time (a series of periods), and uses the biometric information measured for the certain period of time to determine whether the biometric information is normal or abnormal. Then, the monitoring unit 14 repeatedly performs a series of processes such as measurement and determination of biological information for a fixed time. At this time, the monitoring unit 14 compares the measured biometric information with a previously generated normal reference value (biological reference information) to determine whether the measured biometric information is normal or abnormal. Here, the normal reference value is information generated based on the biometric information measured when the person P in the lying position, which is the current movement (posture) of the person P, is normal. Therefore, upon entering the monitoring process, the monitoring unit 14 first checks whether or not the normal reference value generated during the immediately preceding monitoring process exists (step S6 in FIG. 7).

If the normal reference value has not been generated during the immediately preceding monitoring process (No in step S6 of FIG. 7), the monitoring unit 14 newly generates a normal reference value (step S7 of FIG. 7). Specifically, the monitoring unit 14 generates a normal reference value using the biometric information measured at the current fixed time. At this time, as shown in the upper diagram of FIG. 6, the monitoring unit 14 divides the biometric information measured at the current fixed time into a plurality of periods W and generates a normal reference value using the biometric information of each period W. To do. For example, the biometric information for a certain time of 100 seconds may be divided into 20 seconds×5 periods W, and the biometric information of each period W may be used as a normal reference value. One normal reference value may be generated by aggregating information such as averaging, or the normal reference value may be generated by any method. The normal reference value may be generated for each type of biometric information such as heartbeat frequency, heartbeat level, respiratory wavenumber, and respiratory level. Further, the fixed time and each period W are not limited to the above-mentioned time.

When the monitoring unit 14 newly generates the normal reference value as described above, the normal reference value is stored in the reference information storage unit 16 and set to be used in the next monitoring process (No in step S9 of FIG. 7). , No in step S10, step S11). Then, in the current monitoring process, normality/abnormality of the biometric information is determined using the normal reference value in the immediately preceding monitoring process (steps S8 and S12 in FIG. 7). When the process proceeds to the monitoring process (No in step S13 of FIG. 7) and the abnormality is detected (Yes in step S13 of FIG. 7), the notification unit 15 is notified of that fact. However, the monitoring unit 14 operates (posture) the person P while generating a new normal reference value as described above, that is, while measuring biological information for a certain period of time in the current monitoring process. Changes or when it is determined that the biometric information is a value that cannot be monitored (Yes in step S9 of FIG. 7), the normal reference value is not generated. In this case, it is confirmed that the motion (posture) of the person P is in the recumbent position, new biometric information for a certain period of time is newly measured, and the normal reference value is generated as described above. The monitoring unit 14 stores the unmonitorable value of the biological information in advance, and determines that the biological information is the unmonitorable value when the measured biological information matches the unmonitorable value. For example, the unmonitorable value is a waveform of biometric information that can occur when the person P has a large body movement such as coughing or rolling over, or a value of the amplitude or frequency of the biometric information (value equal to or greater than a threshold value) ).

After the normal reference value is generated in the immediately preceding monitoring process as described above, the monitoring unit 14 proceeds to the next monitoring process and newly measures biometric information for a certain period of time (step S4 in FIG. 7). Then, when the newly measured biometric information is different from the absent reference value information (No in step S5 of FIG. 7, Yes in step S6), the monitoring unit 14 uses the measured biometric information and the immediately preceding monitoring process. Using the generated normal reference value, it is determined whether the biometric information is normal or abnormal (step S8 in FIG. 7). At this time, as shown in the upper diagram of FIG. 6, the monitoring unit 14 divides the newly measured biometric information into a plurality of periods W and makes a determination using the biometric information of each period W. For example, the biometric information for 100 seconds may be divided into 20 seconds×5 periods W, and the biometric information for each period W may be compared with a normal reference value to make a comprehensive determination. Then, it may be judged by comparing with a normal reference value. As an example, when the biometric information of the five periods W is used, the number of the periods W in which the biometric information of each period W can be determined to be abnormal such that the biological information is too large or too small with respect to the normal reference value is aggregated and determined as abnormal When there are four or more possible periods W, it is determined that the abnormal state is comprehensive. Note that the normality/abnormality of the biometric information may be determined by any method.

Further, the monitoring unit 14 uses the newly measured biometric information in the monitoring process as described above, and at the same time, generates a new normal reference value to be used in the next monitoring process from the newly measured biometric information ( Step S11 of FIG. 7). That is, the monitoring unit 14 performs the monitoring process, and at the same time, generates a new normal reference value used in the next monitoring process from the biometric information used in the monitoring process. The method for generating the normal reference value is the same as above.

Specifically, the monitoring unit 14 performs the final determination of normality/abnormality of the biological information as described above, newly generates a normal reference value, and uses the normal reference value in the next monitoring process. Update (No in step S9 of FIG. 7, No in step S10, step S11). Then, when the monitoring process determines that the biometric information is normal (No in step S13 of FIG. 7 ), the process proceeds to the next monitoring process. As a result, the monitoring unit 14 measures new biometric information in the next monitoring process and compares it with the newly updated normal reference value to determine normality/abnormality. As a result, the monitoring unit 14 can always determine the currently measured biometric information by using the normal reference value generated from the biometric information measured in the immediately preceding monitoring process.

The monitoring unit 14 changes the motion (posture) of the person P while generating the normal reference value while performing the monitoring process as described above, that is, while measuring the biometric information. When it is determined that the biometric information is a value that cannot be monitored (Yes in step S9 of FIG. 7), the monitoring process is stopped and the generation of a new normal reference value is stopped. Then, the monitoring unit 14 deletes the immediately preceding normal reference value stored in the reference information storage unit 16, confirms that the motion (posture) of the person P is in the recumbent position, as described above. Then, the biological information for a certain period of time is measured, and a new normal reference value is generated. Then, using the new normal reference value, the monitoring process is restarted as described above.

When the monitoring unit 14 determines that the biometric information is abnormal (Yes in step S13 of FIG. 7), the monitoring unit 14 notifies the notification unit 15 of that fact. Then, the notification unit 15 notifies the mobile terminal 20 and the monitoring terminal 30 that the biometric information of the person P is abnormal (step S14 in FIG. 7). For example, in the example of the biometric information of respiration shown in FIG. 6, the upper waveform in FIG. 6 represents a normal time, while the lower waveform in FIG. 6 represents an abnormal time. Therefore, when the waveform as shown in the lower part of FIG. 6 is detected, it is determined to be abnormal.

Here, the motion detection unit 13 (exit detection unit) detects the distance image acquired through the distance image acquisition unit 11 or the detection data from the infrared sensor separately provided in the region R from the inside of the region R. It also has a function of detecting that a person has left. For example, the motion detection unit 13 tracks the position of the person P in the distance image, and detects that the person P exits the region R when the person P passes through a preset entrance/exit point. Further, as another example, an infrared sensor is provided at the entrance of the region R, and when it is detected that an object has passed from the indoor side to the outdoor side, it is detected that the person P has left the region R. However, any method may be used to detect that the person P has left the area R. Then, when the motion detection unit 13 detects that the person P has exited from the region R, the motion detection unit 13 notifies the monitoring unit 14 of that fact.

When the monitoring unit 14 receives the notification that the person P exits from the area R, in principle, the monitoring process is stopped. That is, measurement of biometric information, determination of normality/abnormality of biometric information, and generation of a normal reference value are stopped. However, even when the notification that the person P has exited from the region R is received, the motion of the person P is in the lying position at this point, and the measured biometric information differs from the absence reference value information. Further, when the measured biometric information is in a state (specific state) that is not the unmonitorable value, the biometric information monitoring process is continued. That is, the biometric information is measured, the normality/abnormality of the biometric information is determined, and the normal reference value generation process is continued.

As described above, when it is detected that the person P exits from the region R, the person P who is the monitoring target may have exited, and the subsequent determination of biometric information is unnecessary, so in principle Stop the monitoring process. On the other hand, in the area R, there may be another person such as a caregiver of the person P to be monitored, and it may be detected that the other person exits the area R. .. In order to cope with such a situation, when the person P is in the lying position, the measured biometric information is different from the absence reference value information, and further, the measured biometric information is not the unmonitorable value, The biological information monitoring process is to be continued.

As described above, in the present invention, when the biometric sensor S mounted on the bed B measures the biometric information of the person P to determine normality/abnormality, the value serving as the determination criterion is set to a specific state (for example, , The person is in the lying position). Therefore, it is possible to set an appropriate criterion for comparison with the current situation of the person P and compare them, and it is possible to detect the state of the person P more accurately.

The above-mentioned program is stored in a storage device or a computer-readable recording medium. For example, the recording medium is a portable medium such as a flexible disk, an optical disk, a magneto-optical disk, and a semiconductor memory.

Although the invention of the present application has been described with reference to the above-described embodiments and the like, the invention of the present application is not limited to the above-described embodiments. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

10 Monitoring Server 11 Distance Image Acquisition Unit 12 Biometric Information Measurement Unit 13 Motion Detection Unit 14 Monitoring Unit 15 Notification Unit 16 Reference Information Storage Unit 20 Mobile Terminal 21 Distance Image 30 Monitoring Terminal B Bed C Distance Image Camera S Biometric Sensor P Person U User

Claims (10)

Distance image acquisition means for acquiring a distance image of a predetermined area including the bed,
Based on the distance image, a detection unit that detects a motion of a person in the distance image,
Measuring means for measuring the biological information of the person on the bed from the measuring device,
Based on the movement of the person and the biological information, monitoring means for performing a monitoring process for the biological information,
Equipped with
The monitoring means performs the monitoring process based on the measured biological information and biological reference information generated in advance, and the new biological reference to be used later based on the measured biological information used for the monitoring process. Generate information,
Information processing device. The information processing apparatus according to claim 1, wherein
The monitoring means performs the monitoring process based on the biometric information and the biometric reference information measured by dividing a certain period into a plurality of periods, and the biometric information measured in the plurality of periods used for the monitoring process. Generate the new biometric reference information to be used later based on
Information processing device. The information processing apparatus according to claim 1 or 2, wherein
In the monitoring process, the monitoring unit uses the new biological reference information generated based on the biological information measured during the immediately preceding monitoring process,
Information processing device. The information processing apparatus according to any one of claims 1 to 3,
The monitoring means is the measurement device in a state where the motion of the person is in a lying position in which the person is lying on the bed, and the measured biometric information is not preset on the bed. When different from the absence reference value information that is a measured value from, while performing the monitoring process based on the measured biological information and the biological reference information, based on the measured biological information used for the monitoring process Generating the new biometric reference information,
Information processing device. The information processing apparatus according to any one of claims 1 to 4,
When the movement of the person changes by a predetermined reference or more, the monitoring unit generates the new biometric reference information based on the biometric information measured after that, and further generates the new biometric reference information. Performing the monitoring process based on the biological information measured in
Information processing device. The information processing apparatus according to any one of claims 1 to 5, wherein
The monitoring means, when the measured biometric information is an unmonitorable value in which the monitoring process cannot be continued due to a preset standard, generates the new biometric standard information based on the subsequently measured biometric information. , Performing the monitoring process based on the generated new biological reference information and the biological information measured after that,
Information processing device. The information processing apparatus according to any one of claims 1 to 6,
Equipped with exit detection means for detecting the exit of a person from a predetermined area including the bed,
When the exit of a person is detected, the monitoring unit generates the new biometric reference information based on the biometric information measured thereafter, and measures the generated new biometric reference information and further thereafter. Performing the monitoring process based on the biological information,
Information processing device. The information processing apparatus according to claim 7, wherein
When the monitoring means detects the exit of the person, the motion of the person is in a lying position in which the person is lying on the bed, and the measured biometric information indicates that the person is on the bed. Is different from the absence reference value information which is a measurement value from the measuring device in a state where there is not, further, when the measured biological information is in a specific state that is not a preset unmonitorable value, While performing the monitoring process based on the biological information and the biological reference information, the new biological reference information to be used later based on the measured biological information used for the monitoring process is generated,
When it is not the specific state, the monitoring process is stopped,
Information processing device. The information processing device
Obtain a range image of a predetermined area including the bed,
Based on the distance image, detects the movement of a person in the distance image,
Measure the biometric information of the person on the bed from the measuring device,
When performing a monitoring process for the biometric information based on the motion of the person and the biometric information, the monitoring process is performed based on the measured biometric information and pre-generated biometric reference information, and the monitoring is performed. Generate the new biological reference information to be used later based on the measured biological information used for processing,
Information processing method. In the information processing device,
Obtain a range image of a predetermined area including the bed,
Based on the distance image, detects the movement of a person in the distance image,
Measure the biometric information of the person on the bed from the measuring device,
When performing a monitoring process for the biometric information based on the motion of the person and the biometric information, the monitoring process is performed based on the measured biometric information and pre-generated biometric reference information, and the monitoring is performed. Generate the new biological reference information to be used later based on the measured biological information used for processing,
A program for executing processing.

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