JP2008023052A - Body movement judgment device - Google Patents

Abstract

A body motion determination device that can easily and surely confirm that data necessary for grasping a sleeping state of a sleeping person is obtained.
A pressure sensing unit (21) of a sensor unit (20) detects a pressure fluctuation caused by a body motion of a sleeping person as a body motion signal. The detected body motion signal is sampled by the signal processing means (41) in the circuit unit (40) of the main body (30), and then is detected by the heartbeat extracting means (42) and the body motion extracting means (43). The heart rate component and the body motion component are extracted, respectively, the bed leaving determination is performed by the bed leaving determination unit (44), and the sleep determination is performed by the sleep determination unit (45). Then, the data determination means (47) determines whether the bedtime and the sleep time satisfy predetermined conditions, and if so, the LED (38) is determined by a signal output from the output signal generation means (48). ) Blinks.
[Selection] Figure 3

Description

  The present invention relates to a body motion determination device that detects a body motion signal associated with a body motion of a sleeping person and determines a sleep state based on the body motion signal.

  Conventionally, in order to determine the sleep state of a sleeper sleeping on bedding such as a bed, an apparatus for detecting the body motion of the sleeper is known.

For example, Patent Literature 1 discloses a sleep detection device for performing bed rest / bed determination and sleep / wake determination of a sleeping person. This sleep detection device includes body motion detection means attached to a bed and a circuit unit connected to the body motion detection means. The body motion detection means is composed of a piezoelectric element formed in a tape shape and is attached to the surface of the bed. The piezoelectric element converts the vibration associated with the body movement of the sleeping person into a body movement signal and outputs it to the circuit unit. The body motion signal input to the circuit unit is composed of minute movements derived from the sleeper's breathing and heartbeat, and rough movements caused by the body movement that occurs when the sleeper turns over, enters the floor, leaves the bed, etc. It is detected in a state where body motion is superimposed.
JP-A-5-15517

  By the way, as in the above conventional example, the body motion detection means detects the sleeper's body motion signal, and the sleep state of the sleeper is determined based on the body motion signal. In some cases, an accurate body motion signal of the sleeping person cannot be detected, and the sleeping state of the sleeping person cannot be accurately grasped. For example, when the body motion detecting means is not installed corresponding to the sleeping part of the sleeping person, or when the body motion detecting means is installed under a thick futon, It is difficult to collect accurate data when the body motion detection means is hardly transmitted.

  Even when the body motion detection means is installed so that the body motion can be accurately detected by the body motion detection means, the installation state may be shifted due to a shift in the installation position while the sleeping person is sleeping. Even if the movement is confirmed or the movement is confirmed during installation, the actual movement during sleep resulting from heartbeat or breathing is too small to be detected accurately. It may not be detected.

  In particular, when determining the sleeping state of a sleeping person, there are many cases in which body movement is detected over a relatively long period of time (for example, for one month), and the sleeping person or the like accurately detects body movement by the body movement detecting means. If you do not notice that it is not done, it will pass for a long time without collecting data.

  Moreover, when the device for detecting body movement as described above does not have an output unit such as a screen in the device itself, and only stores data to be output to other analysis devices or display devices. There is a high possibility that the body motion detection means will not notice that an accurate body motion signal has not been detected, and there is a higher possibility of wasting time when data is not collected.

  The present invention has been made in view of such various points, and the object of the present invention is to make it possible to easily and reliably confirm that data necessary for grasping the sleeping state of a sleeping person is obtained. It is to provide a determination device.

  In order to achieve the above object, in the body motion determination device (10) according to the present invention, whether data satisfying a predetermined condition is obtained based on the body motion signal detected by the body motion signal detection means (20). When data satisfying the predetermined condition is obtained, a determination signal is output to inform a sleeping person or the like.

  Specifically, in the first invention, based on the body motion detection means (20) for detecting the body motion signal accompanying the body motion of the sleeping person, and the body motion signal detected by the body motion detection means (20). Data determining means (47) for determining whether or not data satisfying a predetermined condition is obtained, a determination signal generating means (48) for generating a determination signal according to the determination result by the data determining means (47), It is assumed that there is provided discrimination signal output means (38) for outputting the discrimination signal so that it can be confirmed whether or not data satisfying the predetermined condition is obtained.

  With this configuration, since it is possible to confirm whether or not data satisfying the predetermined condition is obtained based on the body motion signal detected by the body motion detecting means (20), for example, data satisfying the predetermined condition is stored. If it is not obtained, the detection state of the body motion signal can be corrected at an early stage by adjusting the setting of the body motion detection means (20). Therefore, it is possible to reliably prevent a waste of a long time without noticing a state in which the body motion signal is not accurately detected, and to accurately and reliably determine the sleeping state of the sleeping person. Become.

  The discrimination signal output means (38) for outputting the discrimination signal may be a display means for visually recognizing the signal, or a means for generating sound, vibration or the like. .

  In the above configuration, the determination signal generation means (48) is configured to generate a determination signal when the data determination means (47) determines that data satisfying the predetermined condition is not obtained. (Second invention). In this way, by generating and outputting a discrimination signal when data satisfying the predetermined condition is not obtained, it is possible to directly inform a sleeping person or the like that data is not obtained, and the necessary data It is possible to more reliably prevent useless time from being obtained.

  The apparatus further includes sleep state determination means (44, 45) for determining a sleep state based on the body motion signal, and the data is a sleep state determination result by the sleep state determination means (44, 45). Suppose that there is (third invention).

  Thus, if the sleep state is determined by the sleep state determination means (44, 45) and it is determined whether the determination result of the sleep state satisfies the predetermined condition, the sleep determination is performed without providing a separate analysis device. And data necessary for grasping the sleep state can be obtained with certainty.

  In particular, in the determination of the sleep state as described above, the predetermined condition is that the bedtime during which the sleeper is located on the bedding is a first predetermined time or more and the sleeper is in the sleep state on the bedding. And the sleep state determination means (44, 45) is configured to be able to estimate the bedtime and sleep time of a sleeper based on a body motion signal, The data determination means (47) is preferably configured to determine whether the bedtime and sleep time estimated by the sleep state determination means (44, 45) satisfy the predetermined condition ( Fourth invention).

  In this way, the sleep state of the sleeper is determined by determining whether the bedtime and sleep time of the sleeper are based on the body motion signal and whether or not the first and second predetermined time or more as the predetermined conditions are exceeded. It is possible to reliably obtain data such as bedtime and sleep time necessary for grasping. In other words, a sleeping person can easily know whether or not the body movement signal at the time of falling asleep can be detected for a predetermined time, and reliably prevent wasting time when necessary data is not collected. it can.

  Further, it is further provided with condition setting means (49) for changing the setting of the predetermined condition according to the purpose of use (fifth invention). If it carries out like this, the said predetermined condition can be changed according to a sleeping person and a utilization purpose, and the data suitable for this sleeping person and a utilization purpose can be collected reliably.

  The discrimination signal output means (38) is configured to visualize the discrimination signal (sixth invention). By visualizing the discrimination signal in this way, a sleeping person or the like can visually confirm through the discrimination signal that the body motion is accurately detected by the body motion detection means (20). Confirmation of signal detection can be performed reliably and easily.

  In particular, the discrimination signal output means (38) is preferably composed of a light emitting diode (seventh invention). A low-cost device can be realized by using such an inexpensive light emitting diode.

  As described above, according to the present invention, the body motion signal accompanying the body motion of the sleeping person is detected by the body motion detection means (20), and whether or not data satisfying the predetermined condition is obtained based on the body motion signal is determined. Since the judgment is made by the data judgment means (47) and the judgment signal is outputted by the judgment signal output means (38) according to the judgment result, the body motion of the sleeping person is detected by the body motion detection means (20 ) Can be easily confirmed whether it has been detected correctly, that is, whether the necessary data has been obtained. Therefore, it is possible to easily and surely confirm that data satisfying a predetermined condition is not obtained at a relatively early stage, and it is possible to prevent wasting time for a long time without obtaining necessary data. it can.

  In particular, according to the second invention, since the determination signal is generated and output when the data obtained based on the body motion signal does not satisfy the predetermined condition, it is assumed that the data is not taken. The person or the like can easily and surely check, and can more reliably prevent wasting time.

  According to the third aspect of the invention, the sleep state is determined based on the body motion signal, and whether the determination result satisfies the predetermined condition is determined. And the necessary sleep data can be obtained with certainty.

  According to a fourth aspect of the invention, the predetermined condition is defined by a bedtime and a sleep time, and the data determination means (47) is for the bedridden of the sleeping person obtained from the detected body motion signal. Since it is configured to determine whether the time and sleep time satisfy the above-mentioned predetermined conditions, the bedtime and sleep time data necessary for grasping the sleep state of the sleeper are reliably obtained. be able to.

  According to the fifth invention, the predetermined condition can be changed by the condition setting means (49), so that necessary data can be reliably obtained even if the sleeping person or the purpose of use changes.

  Further, according to the sixth invention, the discrimination signal output means (38) is configured to visualize the discrimination signal, and a sleeping person or the like detects a body motion signal by the body motion detection means (20). Since it is possible to more surely and easily confirm that necessary data has been obtained, it is possible to reliably collect data for determining the sleeping state of the sleeping person. In particular, according to the seventh invention, since the discrimination signal output means (38) is constituted by a light emitting diode, it is easy for a sleeping person or the like to determine whether or not data of a predetermined condition is obtained as described above. A device that can be confirmed can be realized at low cost.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention, its application, or its use.

  The body movement determination device (10) according to the embodiment of the present invention is for detecting the behavior of body movements that occur from a sleeping person and using these data for the health management of the sleeping person. That is, this body movement determination device (10) collects and stores data relating to body movements necessary for determining the sleeping state of a sleeper and outputs the data to another display device (not shown). . Therefore, the body motion determination device (10) includes a sensor unit (20) for detecting the body motion of a sleeper and a main body unit (30) for processing and storing the detected signal. ing.

  As shown in FIG.1 and FIG.2, the said sensor part (20) consists of a tube-shaped member, and it is comprised so that the pressure applied from the outside may be detected and transmitted to the said main-body part (30). That is, the sensor part (20) includes a pressure-sensitive part (21) for detecting vibration associated with body movement of a sleeping person as pressure fluctuation, and a pressure for transmitting the pressure fluctuation to the main body part (30). And a transmission part (22). Accordingly, the sensor unit (20) constitutes a body motion detecting means for detecting the body motion of the sleeping person as a body motion signal.

  As shown in FIG. 1, the pressure-sensitive part (21) is constituted by an elongated and hollow tube, and is laid under a bedding such as a futon. The pressure transmission part (22) is also constituted by a hollow tube, like the pressure sensing part (21), and is connected to the pressure sensing part (21) via a connection part (23). ing. The pressure-sensitive part (21) is formed to have a larger diameter than the pressure transmission part (22). When the sleeping person lies on the bed, the pressure-sensitive part (21) is subjected to pressure / vibration as the sleeping person moves. Is transmitted, and the internal pressure of the pressure sensing part (21) is transmitted through the pressure transmission part (22) and acts on the pressure receiving part (31) of the main body part (30).

  The pressure receiving part (31) is embedded in the box-shaped main body part (30) and can be fitted to a part opposite to the connection part (23) of the pressure transmission part (22) ( 32). The mounting portion (32) is recessed inwardly in the main body (30) so that the end of the tube-shaped pressure transmission portion (22) is located in the main body (30). It has a concave portion (32a) and a convex portion (32b) projecting so as to fit inside the end portion of the pressure transmitting portion (22) in the concave portion (32a). And this convex part (32b) is provided with a through hole (32c), and the internal pressure generated in the pressure sensitive part (21) is transmitted into the pressure receiving part (31) through the pressure transmitting part (22). It is configured as follows.

  The pressure receiving portion (31) has a pressure receiving sensor (33) therein. The pressure receiving sensor (33) is constituted by a microphone, a pressure sensor, etc., receives the internal pressure generated in the pressure sensing part (21), converts the internal pressure into a voltage, and converts the internal pressure in the main body part (30). The circuit unit (40) is configured to output as a signal.

  The main body (30) includes a circuit unit (40) to be described later in a box-shaped case, and the body motion measuring device (10) is turned on / off on the upper surface of the case. Power switch (34), an illuminance sensor (35) for detecting ambient illuminance, a power LED (36) that lights when the power switch (34) is on, and a device (10) An error display LED (37) that is lit when not operating normally, and a data measurement LED (38) as a discrimination signal output means for displaying whether or not the measurement data satisfies a predetermined condition, Is provided.

  In addition to the above, a heartbeat LED and a breathing LED that are lighted and controlled in response to a heartbeat signal associated with the sleeper's heartbeat and a breathing signal associated with breathing, respectively, are provided so that the sleeper normally For example, it may be possible to confirm whether or not the sensor unit (20) has detected such movement.

  The illuminance sensor (35) is configured by a phototransistor, a photodiode, or the like so that ambient brightness can be detected. The ambient illuminance detected by the illuminance sensor (35) is input as, for example, an illuminance signal to a circuit unit (40) described later, and is used for luminance correction of the LEDs (36, 37, 38). In the present embodiment, the correction of the luminance of the LED (36, 37, 38) is not described in detail, but when the surroundings are bright, the luminance of the LED (36, 37, 38) is turned on with high luminance. On the other hand, when the surroundings are dark, it is possible to reduce the brightness so that sleep of the sleeper is not hindered by lighting of the LED (36, 37, 38).

  The circuit unit (40) extracts heartbeat components and signals of body motion components other than heartbeat / respiration from the body motion signals detected by the sensor unit (20), and sleeps based on these components. The person's getting-off determination and sleep determination are performed and stored, and these data are output to a display device (not shown) to enable monitoring. As shown in FIG. 3, the circuit unit (40) includes a signal processing means (41), a heartbeat extracting means (42), a body motion extracting means (43), a bed leaving determining means (44), and a sleep determining means (45). Storage means (46), data determination means (47), output signal generation means (48), and condition setting means (49).

  The signal processing means (41) performs, for example, 64 times oversampling of the body motion signal output from the sensor unit (20), and then performs equivalent sampling that is integrated and averaged every predetermined time (for example, 10 msec). To cancel the noise of the body motion signal.

  The heartbeat extracting means (42) includes an envelope detector, and the body motion signal processed by the signal processing means (41) (hereinafter also referred to as a processed body motion signal) is enveloped. It is configured to perform detection processing and extract a signal component associated with the sleeper's heartbeat.

  The body motion extraction means (43) extracts a body motion component other than the respiratory component and heart rate component in the body motion signal. Unlike the respiratory component and heart rate component with relatively small body motion, A relatively large body movement is extracted by a filter or the like.

  Although not particularly illustrated, the circuit unit (40) may include a breath extraction means for extracting a breath component from the body motion signal. In this case, the breath extraction means is provided with a band pass filter, and the body motion signal after the above processing is used by the band pass filter (for example, a fourth-order filter in a band of 0.6 Hz ± 0.6 Hz). Preferably, it is configured to extract signal components associated with breathing.

  The body motion signal preprocessing method by the signal processing means (41), the heartbeat signal extraction method by the heartbeat extraction means (42), and the like may be methods other than those described above.

  The bed leaving determination means (44) is for determining whether the sleeping person is lying in the bedclothes or getting out of the bedclothes based on the heartbeat signal obtained by the heartbeat extraction means (42). The bed leaving determination means (44) stores a bed leaving determination threshold for bed leaving determination, and when a heartbeat signal that continuously exceeds the threshold for a predetermined time or more is input, While it is determined that the person is in the bedding, if the input heartbeat signal does not exceed the threshold value, it is determined that the person is getting out of the bedding. The bed leaving threshold may be a fixed value empirically obtained through experiments or the like, or may be a variable value that is updated as appropriate.

  The sleep determination unit (45) further determines the sleeping state of the sleeping person when the bed leaving determination unit (44) determines that the sleeping person is in the bed state. The sleep determination means (45) stores a body movement determination threshold value set to a level larger than the above-mentioned bed leaving determination threshold value. This body movement determination threshold occurs in the body movement signal accompanying the body movement of the sleeping person, such as fine movement derived from the sleeping person's breathing and heartbeat, and when the sleeping person enters the bed, at the time of getting out of bed, at the time of turning over, etc. It is a threshold value that is a boundary level with coarse body motion. The body motion determination threshold may be a fixed value empirically obtained through experiments or the like, or may be changed as appropriate based on the above-described body motion signal, respiratory signal, heart rate signal, and the like. It may be a value.

  In the sleep determination means (45), the sleep state of the sleeping person is determined by comparing the body movement component obtained by the body movement extraction means (43) with the body movement determination threshold. Specifically, if the signal level of the body motion signal continuously exceeds the body motion determination threshold for a predetermined time or more, it is considered that the body motion is intermittently generated from the sleeper, so that the sleeper is in the awake state It is determined that On the other hand, if the body motion signal continuously falls below the body motion determination threshold for a predetermined time or longer, it is considered that intermittent coarse body motion has not occurred from the sleeper, so the sleeper is determined to be in a sleep state. .

  In addition, the said bed leaving determination means (44) and the sleep determination means (45) divide the body motion signal input from the said sensor part (20) every predetermined time (for example, 1 minute), and perform bed leaving determination and sleep determination. Configured to do. Therefore, the determination result of the sleeping state of the sleeping person is obtained every predetermined time. Here, the bed leaving determination means (44) and the sleep determination means (45) correspond to the sleep state determination means of the present invention.

  The storage means (46) appropriately stores data related to the sleeping state of the sleeping person, such as whether the sleeping person is in the sleeping state or whether the sleeping person is in the awake state or not. . Specifically, in the storage means (46), as the determination result in the bed leaving determination means (44), the bedridden “getting out” or “being in bed” is the determination result in the sleep determination means (45). The “sleeping state” or “wakefulness state” of the sleeping person in bed is stored in time series. The storage means (46) uses the time when the judgment is switched from “getting out” to “being in bed” by the bed leaving judging means (34) as the time of entering the bed, and the bed leaving judging means (34). The time when the determination is switched from “being in bed” to “getting out of bed” may be stored as the bed leaving time.

  The data determination means (47) determines whether or not the sleep state determination result stored in the storage means (46) satisfies a predetermined condition set in advance. The predetermined condition is set by the condition setting means (49). For example, the bedtime of the sleeping person is continuously 3 hours (first predetermined time) or more, and the total sleeping time is 1.5. It is set as time (second predetermined time) or more, and is used as a threshold value for confirming whether sleep data of a sleeper is accurately taken. The predetermined condition is not limited to the above-mentioned number of hours, but may be set so that appropriate sleep data can be obtained according to the sleeping person or the purpose of use (for example, when detecting only long-time sleep). .

  As will be described in detail later, when the data determining means (47) determines that the data stored in the storage means (46) satisfies the predetermined condition, an output signal generating means (described later) An output signal as a discrimination signal is output from 48) to the data measurement LED (38).

  The condition setting means (49) is configured to change the setting of the predetermined condition according to the input condition. The input means may be, for example, another device (such as a personal computer) connected to the body movement determination device (10), or may be a dedicated input device provided on the device (10). Good.

  The output signal generation means (48) satisfies the predetermined condition in the bedtime and sleep time of the sleeping person obtained from the body motion signal detected by the sensor unit (20) in the data determination means (47). When it is determined that the output signal is determined, an output signal as a determination signal is generated. The output signal generated by the output signal generation means (48) is output to the data measurement LED (38) to light the LED (38). That is, the output signal generation means (48) corresponds to the discrimination signal generation means of the present invention.

  In this way, when the obtained sleep data satisfies the predetermined condition, the LED (38) is turned on, so that a sleeping person or the like can move his body movement for a predetermined period by the sensor unit (20). It can be easily confirmed whether or not it is accurately detected.

  As a result, the body movement signal is not continuously detected accurately due to the positional deviation of the sensor unit (20), etc., and the necessary sleep determination result is not obtained. Continuing, it can prevent wasting time. Therefore, the sleep determination using the body movement determination device (10) can be accurately performed without waste.

-Sleep data judgment operation-
Next, in the body movement determination device (10) of the present embodiment, the sleep data determination operation when the necessary sleep data is displayed by the data measurement LED (38) is shown in the flow of FIG. Will be described in detail below with reference to FIG.

  First, when the flow of FIG. 4 starts, in step S1, it is configured to determine whether or not the sleeping person has left the bedding based on the heartbeat signal. That is, in this step S1, it is determined whether or not the obtained signal continuously exceeds the bed leaving determination threshold for a predetermined time or more. If it is determined that the detected signal continuously exceeds the bed leaving determination threshold for a predetermined time or more, that is, if it is determined that the sleeper is present in the bedding (in the case of NO), step S2 It progresses to and it is determined whether the sleep flag is turned on.

  If it is determined in step S2 that the sleep flag is ON (in the case of YES), the flow returns to the start as it is (return) and this flow is started again, while the sleep flag is ON. If it is determined that there is not (NO), the process proceeds to step S3, the sleep flag is turned on, the process returns to the start (return), and the flow of FIG. 4 is started again.

  Here, when the sleep state of the sleeper is continuous (in the case of this embodiment, when the bed leaving time is not 12 minutes or more in the past 15 minutes), the sleep flag is the sleep data during that time. It is a signal for processing as data in one sleep period, and data from when the sleep flag is turned on until it is released is treated as sleep data of one sleep period.

  In step S1, when it is determined that the heartbeat signal does not continuously exceed the bed leaving determination threshold for a predetermined time or more, that is, when it is determined that the sleeper is getting out of bedclothes (in the case of YES), It progresses to step S4 and it is determined whether a sleeper's sleep was complete | finished. In this step S4, if the time during which the sleeper leaves the bed (the bed leaving time) is 12 minutes or more in the past 15 minutes, the sleeper is determined to have finished sleeping. . When it is determined in step S4 that the sleep of the sleeper has not ended (in the case of NO), the process returns to the start (return), and the above-described bed leaving determination and sleep end determination are repeatedly performed.

  On the other hand, if it is determined in step S4 that the sleep of the sleeper has ended (in the case of YES), that is, if the bed leaving time is 12 minutes or more in the past 15 minutes, the process proceeds to step S5 and the sleep flag is set. After the cancellation, it is determined whether the data obtained in the subsequent step S6 satisfies a predetermined condition. This predetermined condition is used to determine whether or not the sleep data of the sleeping person has been normally obtained. For example, the bedtime on the bed of the sleeping person is 3 hours or more continuously and the sleeping time is accumulated 1. Set to 5 hours or more.

  Here, the bedtime is a time during which the detected heartbeat signal exceeds the bed separation threshold, and the sleep time is a sleep state based on a body motion component other than the sleeper's heartbeat and breathing. It is the determined time.

  When it is determined in step S6 that the obtained sleep data does not satisfy the predetermined condition (in the case of NO), the process returns to the start (return) and starts the determination flow of FIG. 4 again, When it is determined that the sleep data satisfies the predetermined condition (in the case of YES), the data measurement LED (38) provided on the upper surface of the main body (30) is displayed for a predetermined period (see FIG. 5). After blinking (for example, 30 minutes), the flow returns to the start (return), and this flow is started again.

  As described above, when it is determined that the obtained sleep data satisfies the predetermined condition and normal data detection is performed, the sleep data is displayed by the LED (38) and notified to the sleeping person or the like, thereby the sleeping data is displayed. The person or the like can easily and reliably confirm that the predetermined sleep data has been obtained. Conversely, when the LED (38) is not lit, the sleeper can be surely recognized that the predetermined sleep data is not obtained, and the setting of the sensor unit (20) can be changed. By prompting, it is possible to ensure that appropriate sleep data is obtained next time.

  Therefore, the above-described operation enables a sleeping person or the like to recognize early that the predetermined sleep data is not obtained, and only time is wasted in a state where the predetermined sleep data is not obtained. The passage of time can be reliably prevented.

-Effect of the embodiment-
In the above embodiment, the body motion signal associated with the sleeper's body motion is detected, and the bed leaving determination is performed based on the heart rate component, and whether or not the patient is in the sleep state based on the body motion component other than the heart rate and breathing. If it is determined and the predetermined conditions (the bedtime and sleep time of the sleeping person satisfy the predetermined time or more) are satisfied, the inexpensive data measurement LED (38) is configured to blink. It is possible to easily confirm whether the body movement is accurately detected and whether the required predetermined sleep data is obtained with a low-cost configuration. As a result, a state in which the body motion signal cannot be accurately detected due to a change in the installation state of the sensor unit (20), etc., can be reliably detected at an early stage, and wasted time when necessary data is not collected. Can prevent spending. That is, with the above-described configuration, sleep data necessary for sleep determination can be taken efficiently and accurately, and sleep determination work can be made more efficient.

  In addition, as described above, the sleep state such as getting out of bed or falling asleep is determined based on the body motion signal, and it is determined whether the determination result satisfies a predetermined condition. Whether or not it is obtained can be directly determined, and necessary data can be obtained more reliably.

  In addition, by enabling the predetermined condition to be changed by the condition setting means (49), the predetermined condition is changed according to the required sleep data, and only when the data matching the condition is obtained. The data measurement LED (38) can be blinked. And a sleeper etc. can obtain required sleep data reliably by changing the installation state etc. of the said sensor part (20) so that this LED (38) may blink.

<Other embodiments>
About the said embodiment, it is good also as the following structures.

  In the above embodiment, the data measurement LED (38) blinks when sleep data obtained based on the detected body motion signal satisfies a predetermined condition. However, the present invention is not limited to this. If the sleep data does not satisfy the predetermined condition, the LED (38) may be blinked. In this case, in the flow of FIG. 4, when the sleep data does not satisfy the predetermined condition in Step S6 (in the case of NO), the LED (38) may be blinked in Step S7. As described above, when sleep data that satisfies the predetermined condition cannot be obtained, blinking the LED (38) can clearly inform the sleeping person that the necessary sleep data is not obtained, It is possible to prompt a bedridden or the like to collect data at an early stage.

  Moreover, in the said embodiment, although said LED (38) is made to blink for a predetermined period, it is not this limitation, For example, determination of obtained sleep data, such as lighting this LED (38) for a fixed period, is carried out. Any lighting state may be used as long as the result can be transmitted to a sleeping person or the like. Further, instead of the LED (38), for example, a liquid crystal screen is provided to output and display a signal on the liquid crystal screen, or a confirmation signal is output by vibration by incorporating a vibration motor or the like. Any means may be used as long as it can transmit a confirmation signal to a person or the like.

  Further, in the above embodiment, the dedicated LED (38) displays that the sleep data satisfying the predetermined condition is obtained. However, the present invention is not limited to this. The other LED may be used for display, such as blinking the LED (36). In this way, the dedicated LED can be omitted, and the cost can be reduced.

  Moreover, in the said embodiment, although the tube-shaped member is used as a sensor part, it is not restricted to this, What kind of sensor may be used if it can detect a body movement of a sleeper.

  Furthermore, in the above embodiment, the body movement determination device (10) performs the bed leaving determination and the sleep determination based on the body movement signal. However, the determination is not limited thereto, and these determinations are performed by another analysis device. It may be. In this case, only the heartbeat component and the rough body motion component are separated from the body motion signal, and these components are compared with a predetermined threshold value to determine whether necessary data is obtained. That's fine.

  As described above, the present invention is particularly useful for a body motion determination device that detects and stores a body motion signal associated with the body motion of a sleeping person.

It is the schematic which shows the use condition of the body movement determination apparatus which concerns on embodiment of this invention. It is a figure which shows schematic structure of a body movement determination apparatus. It is a block diagram which shows notionally each component of a circuit unit. It is a flowchart which shows the sleep data determination operation | movement which determines whether sleep data satisfy | fills predetermined conditions. It is a top view which shows the lighting state of LED for data measurement of a body movement determination apparatus.

Explanation of symbols

10 Body movement judgment device
20 Sensor unit (body motion detection means)
38 LED for data measurement (discrimination signal output means)
44 Bed leaving judgment means (sleep state judgment means)
45 Sleep determination means (sleep state determination means)
47 Data judgment means
48 Output signal generation means (discrimination signal generation means)
49 Condition setting method

Claims (7)

Body motion detection means (20) for detecting a body motion signal accompanying the body motion of the sleeping person,
Data determination means (47) for determining whether data satisfying a predetermined condition is obtained based on the body movement signal detected by the body movement detection means (20);
A determination signal generating means (48) for generating a determination signal according to the determination result by the data determination means (47);
A determination signal output means (38) for outputting the determination signal so that it can be confirmed whether or not data satisfying the predetermined condition is obtained;
A body movement determination device comprising: In claim 1,
The discrimination signal generation means (48) is configured to generate a discrimination signal when the data determination means (47) determines that data satisfying the predetermined condition has not been obtained. Body movement determination device. In claim 1 or 2,
It further comprises sleep state determination means (44, 45) for determining a sleep state based on the body motion signal,
The body movement determination device, wherein the data is a determination result of a sleep state by the sleep state determination means (44, 45). In claim 3,
The predetermined condition is that the bedtime during which the sleeping person is located on the bedding is a first predetermined time or more, and the sleeping time in which the sleeping person is asleep on the bedding is a second predetermined time or more,
The sleep state determination means (44, 45) is configured to be able to estimate the bedtime and sleep time of a sleeping person based on a body motion signal,
The data determination means (47) is configured to determine whether the bedtime and sleep time estimated by the sleep state determination means (44, 45) satisfy the predetermined condition. A body movement determination device. In any one of Claims 1-4,
A body movement determination device further comprising condition setting means (49) for changing the setting of the predetermined condition according to the purpose of use. In any one of Claims 1-5,
The body movement determination device, wherein the determination signal output means (38) is configured to visualize the determination signal. In claim 6,
The determination signal output means (38) comprises a light emitting diode.

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