JP6908028B2 - Observer monitoring device, method, system and program - Google Patents

Description

The present invention relates to, for example, a monitored person monitoring device, a method, and a system for monitoring a person who needs nursing care or a person who needs nursing care (hereinafter, a person requiring nursing care, etc.) as a monitoring target.

Japan (Japan) is an aging society, more specifically, the ratio of the population aged 65 and over to the total population due to the improvement of living standards, sanitary environment and medical standards accompanying the postwar high economic growth. It is a super-aging society with an aging rate of over 21%. In 2005, the total population was about 127.65 million, while the number of elderly people aged 65 and over was about 25.56 million, while in 2020, the total population was about 124.11 million. The elderly population is estimated to be about 34.56 million. In such an aging society, the number of nurses requiring nursing care due to illness, injury, aging, etc. is expected to increase more than the number of nurses requiring nursing care in a normal society other than the aging society.

Such nurses requiring nursing care enter hospitals and facilities such as welfare facilities for the elderly (short-term admission facilities for the elderly, nursing homes for the elderly, special elderly nursing homes, etc. under Japanese law) and receive their nursing and long-term care. In such facilities such as hospitals and welfare facilities for the elderly, for example, persons who need nursing care such as nurses and caregivers so that they can spend their time comfortably and with peace of mind (hereinafter referred to as “nurses” and “caregivers”). Nurses, etc.) confirm their safety by patrols on a regular basis. However, compared to the day shift hours, the number of nurses and the like decreases during the semi-night shift and night shift hours, and the work load per person increases. Therefore, it is required to reduce the work load. For this reason, in recent years, a monitored person monitoring device that monitors (monitors) a nurse requiring nursing care as a monitored person has been researched and developed.

Some of the nurses required to be accommodated in facilities such as hospitals and welfare facilities for the elderly have difficulty turning over on the bed, and it is necessary to prevent such bedsores. be. In addition, even a nurse requiring a turnover may cause bedsores when sleeping in a specific posture (for example, lying on his / her back) for a long time. Therefore, nurses and the like are working to change their sleeping postures as necessary for such nurses requiring nursing care.

The sleeping posture of a person includes lying on his back, sideways, and prone. When changing the sleeping posture of a nurse requiring nursing care, it is necessary to manage the sleeping posture so as not to concentrate on a specific posture (for example, lying on the back). It is a heavy burden for nurses and the like to visit the rooms of nurses and the like on a regular basis to check and record their sleeping postures.

Regarding such bedsores, for example, Patent Document 1 discloses a bedsore reporting system. The floor slip notification system disclosed in Patent Document 1 includes a portable transmitter including an acceleration sensor that detects an acceleration acting on a lying person lying on a bedding, and a transmitter that transmits the detection result of the acceleration sensor. The display unit, the receiving unit that receives the detection result of the acceleration sensor, the determination unit that determines whether or not the lying person has turned over within a predetermined time based on the received detection result, and the lying person A monitoring device including a display control unit that controls the display unit to display a warning screen warning of the occurrence of floor slippage when it is determined that the user has not turned over within a predetermined time is provided. The portable transmitter is configured to be mounted on the body of the lying person, and the determination unit identifies the posture of the lying person based on the acceleration detected by the acceleration sensor, and the lying person determines the posture of the lying person for the predetermined time. Over the above, it is configured to determine whether or not the posture is substantially the same.

By the way, in the bedsore reporting system disclosed in Patent Document 1, a warning screen for warning the occurrence of bedsores is displayed, which is convenient in avoiding the occurrence of bedsores. However, in the bed sore reporting system disclosed in Patent Document 1, the patient needs to be equipped with a portable transmitter that detects the acceleration acting on the patient, which makes the patient feel annoyed and uncomfortable.

Japanese Unexamined Patent Publication No. 2008-27030

The present invention has been made in view of the above circumstances, and an object of the present invention is a monitored person monitoring device and a monitored person monitoring method capable of detecting a sleeping posture without wearing a sensor and reducing the occurrence of bedsores. And to provide a monitored person monitoring system.

The monitored person monitoring device, the monitored person monitoring method, and the monitored person monitoring system according to the present invention non-contactly detect the sleeping posture, which is the sleeping posture of the monitored person to be monitored, and based on the detection result. When a certain sleeping posture continues for a predetermined time, the outside is notified. Therefore, the monitored person monitoring device, the monitored person monitoring method, and the monitored person monitoring system according to the present invention can detect the sleeping posture without wearing a sensor and can reduce the occurrence of bedsores.

The above and other objectives, features and advantages of the present invention will become apparent from the following detailed description and accompanying drawings.

It is a figure which shows the structure of the monitored person monitoring system in embodiment. It is a figure which shows the structure of the management server apparatus in the said monitored person monitoring system. It is a flowchart which shows the process about the reduction of the occurrence of a pressure sore in the management server apparatus. It is a figure for demonstrating the process concerning the reduction of the occurrence of a pressure sore in the management server apparatus for a thin person to be monitored. It is a figure for demonstrating the process concerning the reduction of the occurrence of a pressure sore in the management server apparatus for a fat person to be monitored. It is a schematic diagram which shows the state which the monitored person is sleeping in the supine position. It is a schematic diagram which shows the state which the monitored person is sleeping in the prone position. It is a schematic diagram which shows the state which the monitored person is sleeping in the right sideways lying down posture. It is a schematic diagram which shows the state which the monitored person is sleeping in the left sideways lying down posture.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. It should be noted that the configurations with the same reference numerals in the respective drawings indicate that they are the same configurations, and the description thereof will be omitted as appropriate. In the present specification, when they are generically referred to, they are indicated by reference numerals without subscripts, and when they refer to individual configurations, they are indicated by reference numerals with subscripts.

The monitored person monitoring system in the embodiment monitors the monitored person (watching target person) Ob, which is the monitoring target (watching target) to be monitored (watched), and communicates with the terminal device and the terminal device. It is provided with a monitored person monitoring device that is connectable and monitors the monitored person Ob. In the present embodiment, the monitored person monitoring device is based on a sleeping posture detecting unit that non-contactly detects a sleeping posture, which is a sleeping posture of a monitored person to be monitored, and a detection result of the sleeping posture detecting unit. It is a device provided with a sleeping posture determination notification unit that notifies the outside when a constant sleeping posture continues for a predetermined time, can detect the sleeping posture without wearing a sensor, and can reduce the occurrence of floor slippage. Such a monitored person monitoring device may be realized by being integrally configured as one device, or may be realized by a plurality of devices as a system. As an example, here, an embodiment of the monitored person monitoring device will be described in a case where the monitored person monitoring device is realized by a plurality of devices as a system. More specifically, the monitored person monitoring device includes first and second devices that are communicatively connected to each other, and the sleeping posture detecting unit includes an imaging unit that generates an image of the monitored person. The first device includes the imaging unit, and the second device includes a detection unit that detects the sleeping posture of the monitored person based on the image of the monitored person generated by the imaging unit. The detection unit and the sleeping posture determination notification unit are provided. In the following, the monitored person monitoring device includes a sensor device SU as an example of the first device and a management server device SV as an example of the second device. In the case where the monitored person monitoring device is integrally configured and realized as one device, the monitored person monitoring device can be configured in the same manner as in the following description. For example, as an example of the first device, the sensor device SU may be configured to include the sleeping posture detecting unit and the sleeping posture determination notification unit. The terminal device may be one type of device, but in the present embodiment, the terminal device is two types of devices, a fixed terminal device and a mobile terminal device. The main difference between these fixed terminal devices and mobile terminal devices is that while fixed terminal devices are operated in a fixed manner, mobile terminal devices are carried and operated by observers (users) such as nurses and caregivers, for example. The fixed terminal device and the mobile terminal device are substantially the same.

FIG. 1 is a diagram showing a configuration of a monitored person monitoring system according to the embodiment. FIG. 2 is a diagram showing a configuration of a management server device in the monitored person monitoring system.

More specifically, as shown in FIG. 1, the monitored person monitoring system MS in the embodiment includes one or more sensor devices SU (SU-1 to SU-4), a management server device SV, and the like. It includes a fixed terminal device SP, one or more portable terminal devices TA (TA-1, TA-2), and a private branch exchange (PBX, Private branch exchange) CX, which are wired or wireless and LAN (Local). It is connected so that it can communicate via a network (network, communication line) NW such as Area Network). The network NW may be provided with repeaters such as repeaters, bridges and routers that relay communication signals. In the example shown in FIG. 1, the plurality of sensor devices SU-1 to SU-4, the management server device SV, the fixed terminal device SP, the plurality of mobile terminal devices TA-1, TA-2, and the premises exchange CX are L2 switches. The concentrator (hub, HUB) LS and the access point AP are connected to each other so as to be communicable with each other by a mixed wired and wireless LAN (for example, a LAN according to the IEEE802.11 standard) NW. More specifically, the plurality of sensor devices SU-1 to SU-4, the management server device SV, the fixed terminal device SP, and the private branch exchange CX are connected to the line concentrator LS, and the plurality of portable terminal devices TA-1 and TA-2 are connected. Is connected to the concentrator LS via the access point AP. Then, the network NW constitutes a so-called intranet by using a group of Internet protocols such as TCP (Transmission Control Protocol) and IP (Internet Protocol).

The monitored person monitoring system MS is arranged at an appropriate place according to the monitored person Ob. The monitored person (person to be watched over) Ob is, for example, a person who needs nursing care due to illness or injury, a person who needs nursing care due to deterioration of physical ability, or a person living alone. In particular, from the viewpoint of enabling early detection and early response, the monitored person Ob may be a person who needs the detection when a predetermined inconvenient event such as an abnormal state occurs in the person. preferable. Therefore, the monitored person monitoring system MS is suitably arranged in a building such as a hospital, a welfare facility for the elderly, and a dwelling unit according to the type of the monitored person Ob. In the example shown in FIG. 1, the monitored person monitoring system MS is arranged in a plurality of living room RMs in which a plurality of monitored person Obs move in, or in a building of a nursing care facility having a plurality of living rooms such as a nurse station.

The sensor device SU is provided with, for example, a communication function for communicating with other devices SV, SP, TA via the network NW, and the management server device SV is in a sleeping position in the monitored person Ob to be monitored. This is a device that generates an image of the monitored person Ob and transmits the generated image of the monitored person Ob to the management server device SV in order to detect the monitored person Ob in a non-contact manner. More specifically, the sensor device SU communicates with the imaging unit that generates the image of the monitored person and other devices SV, SP, and TA via the network NW, for example, in accordance with the IEEE 802.11 standard and the like. It is provided with a communication interface unit such as a communication interface circuit (communication card), and a control unit such as a microcomputer that controls the imaging unit and the communication interface unit according to the function.

The image pickup unit is arranged on, for example, a ceiling surface so that the space where the monitored person Ob is scheduled to be located (location space, the living room RM of the arrangement location in the example shown in FIG. 1) can be monitored, and images the location space. An image (image data) that gives a bird's-eye view of the imaged object is generated as an object from above, and each image (target image) of the imaged object is output to the control unit. Each time the target image is input from the imaging unit, the control unit transmits the target image input from the imaging unit to the management server device SV via the network NW at the communication interface unit. Preferably, since it is highly probable that the entire monitored person Ob can be imaged, the imaging unit is planned to position the head of the monitored person Ob in the bedding (for example, a bed) on which the monitored person Ob lies. It is arranged so that the image pickup target can be imaged from directly above the preset head position (usually, the pillow arrangement position).

Such an imaging unit may be a device that generates an image of visible light, but in the present embodiment, it is a device that generates an infrared image so that the monitored person Ob can be monitored even in a relatively dark place. In the present embodiment, such an imaging unit is arranged, for example, an imaging optical system that forms an infrared optical image of an imaging target on a predetermined imaging surface, and a light receiving surface that coincides with the imaging surface. An image sensor that converts an infrared optical image of the imaging target into an electrical signal, and image data that represents an infrared image of the imaging target by image processing the output of the image sensor. It is a digital infrared camera including an image processing unit and the like to generate. In the present embodiment, the imaging optical system of the imaging unit is preferably a wide-angle optical system (so-called wide-angle lens (including a fisheye lens)) having an angle of view capable of imaging the entire living room RM in which the imaging unit is arranged.

In FIG. 1, four first to fourth sensor devices SU-1 to SU-4 are shown as an example, and the first sensor device SU-1 is Mr. A who is one of the monitored persons Ob. The second sensor device SU-2 is arranged in the living room RM-1 (not shown) of Ob-1, and is arranged in the living room RM-2 (not shown) of Mr. B Ob-2 who is one of the monitored persons Ob. The third sensor device SU-3 is installed in the living room RM-3 (not shown) of Mr. C Ob-3, who is one of the monitored persons Ob, and the fourth sensor device SU-4 is installed. It is arranged in the living room RM-4 (not shown) of Mr. D Ob-4, who is one of the monitored persons Ob.

The management server device SV has a communication function for communicating with other devices SU, TA, and SP via the network NW, and when the target image of the monitored person Ob is received from the sensor device SU, the target image of the monitored person Ob. The sleeping posture of the monitored person Ob is detected based on the above, and when a constant sleeping posture continues for a predetermined time based on the detection result, it is notified to the outside, in this embodiment, to the predetermined terminal devices SP and TA. , A device that provides the client with data according to the request of the client (terminal device SP, TA, etc. in the present embodiment) and manages the entire monitored person monitoring system MS. Such a management server device SV will be described in more detail later.

The fixed terminal device SP includes a communication function for communicating with other devices SU, SV, and TA via a network NW, a display function for displaying predetermined information, an input function for inputting predetermined instructions and data, and the like. The user interface of the monitored person monitoring system MS by inputting predetermined instructions and data given to the management server device SV, the sensor device SU, and the mobile terminal device TA, and outputting a notification from the management server device SV. A device that functions as a (UI). Such a fixed terminal device SP can be configured by, for example, a computer having a communication function.

The mobile terminal device TA has a communication function for communicating with other devices SV, SP, SU via a network NW, a display function for displaying predetermined information, an input function for inputting predetermined instructions and data, and a voice call. The monitored person monitoring system MS is equipped with a call function to perform, etc., by inputting predetermined instructions and data to be given to the management server device SV and the sensor device SU, and outputting a notification from the management server device SV. A device that functions as a user interface (UI). Such a mobile terminal device TA can be configured by a portable communication terminal device such as a so-called tablet computer, a smartphone, or a mobile phone.

Next, the management server device SV will be described in more detail. The management server device SV described above includes, for example, a server-side communication interface unit (SV communication IF unit) 21, a server-side control processing unit (SV control processing unit) 22, and a server-side storage unit (SV communication IF unit) 21, as shown in FIG. The SV storage unit) 23 is provided.

The SV communication IF unit 21 is a communication circuit connected to the SV control processing unit 22 and for performing communication under the control of the SV control processing unit 22. The SV communication IF unit 21 generates a communication signal containing data to be transferred input from the SV control processing unit 22 according to the communication protocol used in the network NW of the monitored person monitoring system MS, and this generated communication. The signal is transmitted to other devices SV, SP, and TA via the network NW. The SV communication IF unit 21 receives communication signals from other devices SV, SP, and TA via the network NW, extracts data from the received communication signals, and the SV control processing unit 22 can process the extracted data. It is converted into data in a different format and output to the SV control processing unit 22. The SV communication IF unit 21 is configured to include, for example, a communication interface circuit according to the IEEE802.11 standard or the like.

The SV storage unit 23 is a circuit that is connected to the SV control processing unit 22 and stores various predetermined programs and various predetermined data under the control of the SV control processing unit 22. The various predetermined programs include, for example, an SV control program that controls each part of the management server device SV according to the function of each part, and the target image of the monitored person Ob received from the sensor device SU. A detection program that detects the sleeping posture of the monitored person Ob, a sleeping posture determination notification program that notifies the outside when a certain sleeping posture continues for a predetermined time based on the detection result by the detection program, and the predetermined In order to measure the continuation of time, a control processing program such as a timer program that clocks until a preset time is reached and outputs that fact (time up) when the preset time is reached is included. The various predetermined data include a server identifier (server ID), which is an identifier for identifying and identifying the management server device SV of the own machine, and predetermined feature parameters related to the occurrence of floor slippage in the monitored person Ob. , Data necessary for executing each program such as the sleeping posture which is the sleeping posture of a person and the inter-device information representing the information between the devices SU, SP, and TA such as the notification destination of the notification are included. .. The SV storage unit 23 includes, for example, a ROM (Read Only Memory) which is a non-volatile storage element, an EEPROM (Electrically Erasable Programmable Read Only Memory) which is a rewritable non-volatile storage element, and the like. The SV storage unit 23 includes a RAM (Random Access Memory) or the like that serves as a working memory of the so-called SV control processing unit 22 that stores data or the like generated during execution of the predetermined program. The SV storage unit 23 functionally includes a feature parameter information storage unit 231, a sleeping posture information storage unit 232, and an inter-device information storage unit 233 in order to store each of the feature parameter, sleeping posture, and inter-device information.

The feature parameter information storage unit 231 stores the feature parameters of the monitored person Ob in association with the monitored person Ob. Since the purpose of this embodiment is to reduce the occurrence of bedsores in the monitored person Ob, the feature parameters are predetermined parameters related to the occurrence of bedsores in the monitored person, as described above. The characteristic parameters include, for example, the body shape of the monitored person Ob, the presence or absence of paralysis in the monitored person Ob, and at least one of the paralyzed parts in the monitored person Ob. The body shape is, for example, a thin body shape, a fat body shape, or the like. The paralyzed part is, for example, a part of the human body such as the right arm, the left arm, the right foot, the left foot, the lumbar region, the buttocks, and the trunk. Such feature parameters are input to the terminal devices SP and TA by the observer, received from the terminal devices SP and TA by the SV communication IF unit 21 of the management server device SV via the network NW, and input to the management server device SV. Then, the SV control processing unit 22 stores the feature parameter information storage unit 231 in association with the monitored person Ob. The distinction between the thin type and the thick type is subjectively judged by the observer by looking at the body shape of the monitored person Ob, and is input to the terminal devices SP and TA. The communication signal (feature parameter notification communication signal) for transmitting this feature parameter from the terminal devices SP and TA to the management server device SV includes feature parameter information representing the feature parameter of the monitored person Ob and the monitored person Ob. The name is accommodated. Therefore, the SV communication IF unit 21 corresponds to an example of a feature reception unit that accepts input of feature parameters. Further, in the present embodiment, since the monitored person Ob is monitored by the sensor device SU, the feature parameter information storage unit 231 monitors the feature parameter of the monitored person Ob with the sensor device SU that monitors the monitored person Ob. It is stored in association with the sensor ID of. For this purpose, the correspondence relationship between the name of the monitored person Ob and the sensor ID of the sensor device SU that monitors the monitored person Ob is stored in advance in the SV storage unit 23. The correspondence is stored in the terminal devices SP and TA, and the sensor of the sensor device SU that monitors the monitored person Ob in place of or in addition to the name of the monitored person Ob is added to the feature parameter notification communication signal. The ID may be accommodated. The sensor ID (sensor identifier) is an identifier for identifying and identifying the sensor device SU.

The sleeping posture information storage unit 232 stores a plurality of sleeping postures that are different from each other. The sleeping postures include, for example, a supine lying posture lying on the back, a right lateral lying posture sleeping sideways with the left arm down, and a left lateral lying posture sleeping sideways with the right arm down. And, including the prone position lying on the stomach. The sleeping posture may or may not be during sleep of the monitored person Ob, and is irrelevant to the consciousness level of the monitored person Ob.

In the present embodiment, the inter-device information storage unit 233 stores the notification destination correspondence relationship, the communication address correspondence relationship, and the like as the inter-device information. The notification destination correspondence relationship is a correspondence relationship between a sensor ID that is a transmission source and a terminal ID that is a notification destination (destination), which indicates a notification destination (notification destination, transmission destination) of a communication signal transmitted from the sensor device SU. Is. The communication address correspondence relationship is a correspondence relationship between the IDs (sensor IDs, terminal IDs) of each device SU, SP, and TA and their communication addresses. The terminal ID (terminal identifier) is an identifier for identifying the terminal device SP and TA and identifying the terminal device SP and TA.

The SV control processing unit 22 controls each unit of the management server device SV according to the function of each unit, and when it receives the target image of the monitored person Ob from the sensor device SU, it is based on the target image of the monitored person Ob. When the sleeping posture of the monitored person Ob is detected and a constant sleeping posture continues for a predetermined time based on the detection result, the client is notified to the outside, in the present embodiment, to the predetermined terminal devices SP and TA. It is a circuit for providing the data corresponding to the request of (terminal device SP, TA, etc. in this embodiment) to the client and managing the entire monitored person monitoring system MS. The SV control processing unit 22 is configured to include, for example, a CPU (Central Processing Unit) and peripheral circuits thereof. The SV control processing unit 22 functionally includes a server-side control unit (SV control unit) 221, a detection unit 222, a sleeping posture determination notification unit 223, and a timer unit 224 by executing the control processing program.

The SV control unit 221 controls each unit of the management server device SV according to the function of each unit, and controls the entire management server device SV.

The detection unit 222 detects the sleeping posture of the monitored person Ob based on the target image of the monitored person Ob received from the sensor device SU. In the present embodiment, the detection unit 222 obtains the amount of movement of the monitored person Ob as the sleeping posture of the monitored person Ob based on the target image of the monitored person Ob received from the sensor device SU. More specifically, the detection unit 222 differs between the target image of the monitored person Ob received this time from the sensor device SU and the target image of the monitored person Ob received last time from the sensor device SU. Is calculated, the number of pixels having different pixel values is totaled, and this total value is obtained as the amount of movement of the monitored person Ob. The detection unit 222 outputs the obtained movement amount (total value) of the monitored person Ob to the sleeping posture determination notification unit 223.

The sleeping posture determination notification unit 223 notifies the outside when a constant sleeping posture continues for a predetermined time (continuation determination time) ΔT based on the detection result of the detection unit 222. More specifically, in the present embodiment, since the movement amount (total value) of the monitored person Ob is input from the detection unit 222 to the sleeping posture determination notification unit 223 as the detection result, the sleeping posture determination notification unit 223 Based on the movement amount (the total value) of the monitored person Ob obtained by the detection unit 222, it is determined whether or not the constant sleeping posture is continued for the continuation determination time ΔT. More specifically, in the sleeping posture determination notification unit 223, the movement amount (the total value) of the monitored person Ob obtained by the detection unit 222 continuously falls below a predetermined threshold value (movement determination threshold value) Th. It is determined whether or not the time spent exceeds the continuation determination time ΔT. As a result of this determination, if the time during which the motion amount (the total value) of the monitored person Ob obtained by the detection unit 222 is continuously below the motion determination threshold value Th does not exceed the continuation determination time ΔT. , The sleeping posture determination notification unit 223 determines that the constant sleeping posture does not continue for the continuation determination time ΔT, while the movement amount (the total value) of the monitored person Ob obtained by the detection unit 222 moves. When the time continuously falling below the determination threshold Th exceeds the continuation determination time ΔT, the sleeping posture determination notification unit 223 determines that the constant sleeping posture continues for the continuation determination time ΔT. ..

In the notification, in the present embodiment, the sleeping posture determination notification unit 223 transmits the transmission associated with the sensor device SU (sensor ID) which is the source of the target image related to the detection result from the notification destination correspondence relationship. A communication signal (continuation of sleeping posture) for selecting (searching) the previous terminal device SP and TA (terminal ID) and notifying the selected terminal device SP and TA that a certain sleeping posture has continued for a predetermined time. The notification communication signal) is transmitted by the SV communication IF unit 21. The sleeping posture continuation notification communication signal includes the sensor ID of the sensor device SU that is the source of the target image related to the detection result, the sleeping posture continuation notification information indicating that a certain sleeping posture has continued for a predetermined time, and the body position. The recommended sleeping posture information indicating the sleeping posture recommended by the conversion is stored.

In order to accommodate the recommended sleeping posture information in the sleeping posture continuation notification communication signal, the sleeping posture determination notification unit 223 uses one or a plurality of sleeping postures among the plurality of sleeping postures stored in the sleeping posture information storage unit 232. Is selected as the recommended sleeping posture in the position change. More specifically, in the present embodiment, the sleeping posture determination notification unit 223 communicates with SV from the terminal devices SP and TA via the network NW from among the plurality of sleeping postures stored in the sleeping posture information storage unit 232. The sleeping posture is selected based on the feature parameter received by the IF unit 21 and stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID). The feature parameter for selecting the sleeping posture is a feature parameter associated with the sensor ID of the sensor device SU that is the source of the target image related to the detection result. Therefore, the sleeping posture determination notification unit 223 first selects (searches) the feature parameter associated with the sensor ID of the sensor device SU, which is the source of the target image related to the detection result, from the feature parameter information storage unit 231. ), And the sleeping posture is selected based on the selected feature parameter from the plurality of sleeping postures stored in the sleeping posture information storage unit 232. For example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is left arm paralysis, the sleeping posture determination notification unit 223 is in a supine position and left sideways. At least one of the lying postures is selected as the recommended sleeping posture in the postural change. Further, for example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) has a bed sore on the lumbar region, the sleeping posture determination notification unit 223 is lying on the right sideways. At least one of the posture, the left lateral recumbent posture and the prone recumbent posture is selected as the recommended sleeping posture in the postural change.

In the present embodiment, the sleeping posture determination notification unit 223 is received by the SV communication IF unit 21 from the terminal devices SP and TA via the network NW, and is associated with the monitored person Ob (sensor ID) in the feature parameter information storage unit 231. The predetermined time (continuation determination time) ΔT is changed based on the feature parameter stored in the above. The feature parameter for changing the continuation determination time ΔT is a feature parameter associated with the sensor ID of the sensor device SU that is the source of the target image related to the detection result. Therefore, the sleeping posture determination notification unit 223 first selects (searches) the feature parameter associated with the sensor ID of the sensor device SU, which is the source of the target image related to the detection result, from the feature parameter information storage unit 231. ), And the continuation determination time ΔT is changed based on the selected feature parameter. For example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is a thin type, the sleeping posture determination notification unit 223 sets the continuation determination time ΔT. , Set to the first continuation determination time ΔT1 for the lean type. Further, for example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is thick, the sleeping posture determination notification unit 223 may perform the continuation determination time ΔT. Is set to the second continuation determination time ΔT2 for the thick type. The first continuation determination time ΔT1 for the thin type is shorter than the second continuation determination time ΔT2 for the thick type. Therefore, the second continuation determination time ΔT2 for the thick type is defined to be relatively longer than the first continuation determination time ΔT1 for the lean type ((first continuation determination time Δ for the lean type). T1) <(second continuation determination time for thick type ΔT2)). Further, for example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is paralyzed, the sleeping posture determination notification unit 223 may perform a continuation determination time ΔT. Is set to the third continuation determination time ΔT3 for having paralysis. Further, for example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is not paralyzed, the sleeping posture determination notification unit 223 may perform a continuation determination time ΔT. Is set to the fourth continuation determination time ΔT4 for no paralysis. The third continuation determination time ΔT3 for having paralysis is shorter than the fourth continuation determination time ΔT4 for not having paralysis.

Further, for example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is thin and paralyzed, the sleeping posture determination notification unit 223 may be used. The continuation determination time ΔT was set to the Ath continuation determination time ΔTA for being thin and paralyzed, and was stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID). When the characteristic parameter is lean and has no paralysis, the sleeping posture determination notification unit 223 sets the continuation determination time ΔT to the Bth continuation determination time ΔTB for being lean and without paralysis. When the feature parameter that has been set and stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is thick and paralyzed, the sleeping posture determination notification unit 223 The continuation determination time ΔT was set to the Cth continuation determination time ΔTC for being thick and having paralysis, and was stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID). When the feature parameter is thick and has no paralysis, the sleeping posture determination notification unit 223 sets the continuation determination time ΔT to the Dth continuation determination time ΔTD for being thick and without paralysis. Set. In this way, the continuation determination time ΔT may be set from a plurality of feature parameters.

The continuation determination time ΔT corresponding to such a feature parameter is stored, for example, in the feature parameter information storage unit 231 in association with the feature parameter and the monitored person Ob (sensor ID).

Further, in the present embodiment, the sleeping posture determination notification unit 223 is received by the SV communication IF unit 21 from the terminal devices SP and TA via the network NW, and is sent to the feature parameter information storage unit 231 by the monitored person Ob (sensor ID). The predetermined threshold value (motion determination threshold value) Th is changed based on the feature parameter stored in association with the feature parameter. The feature parameter for changing the motion determination threshold Th is a feature parameter associated with the sensor ID of the sensor device SU that is the source of the target image related to the detection result. Therefore, the sleeping posture determination notification unit 223 first selects (searches) the feature parameter associated with the sensor ID of the sensor device SU, which is the source of the target image related to the detection result, from the feature parameter information storage unit 231. ), And the motion determination threshold Th is changed based on the selected feature parameter. For example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is a thin type, the sleeping posture determination notification unit 223 sets the motion determination threshold Th. Set to the first motion determination threshold Th1 for the lean type. Further, for example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is thick, the sleeping posture determination notification unit 223 sets the motion determination threshold Th. , Set to the second motion determination threshold Th2 for thick type. The first movement determination threshold Th1 for the thin type is smaller than the second movement determination threshold Th2 for the thick type. Therefore, the second movement determination threshold Th2 for the thick type is defined as a value relatively larger than the first movement determination threshold Th1 for the thin type ((first movement determination threshold Th1 for the thin type). ) <(Second motion determination threshold for thick type Th2)).

Further, for example, when the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is thin and paralyzed, the sleeping posture determination notification unit 223 may be used. The motion determination threshold Th is set to the Ath motion determination threshold ThA for being thin and paralyzed, and the feature is stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID). When the parameter is thin and has no paralysis, the sleeping posture determination notification unit 223 sets the movement determination threshold Th to the Bth movement determination threshold ThB for being thin and not paralyzed. When the feature parameter stored in the parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is thick and paralyzed, the sleeping posture determination notification unit 223 sets the motion determination threshold Th. Is set to the Cth motion determination threshold ThC for being paralyzed and has a thick type, and the feature parameter stored in the feature parameter information storage unit 231 in association with the monitored person Ob (sensor ID) is thick. If there is no paralysis, the sleeping posture determination notification unit 223 sets the motion determination threshold Th to the D-th motion determination threshold ThD for being thick and without paralysis. In this way, the motion determination threshold value Th may be set from a plurality of feature parameters.

The motion determination threshold value Th corresponding to such a feature parameter is stored, for example, in the feature parameter information storage unit 231 in association with the feature parameter and the monitored person Ob (sensor ID).

The timer unit 224 measures the time until the preset time is reached in order to measure the continuation of the predetermined time (continuation determination time) ΔT, and when the preset time is reached, the timer unit 224 determines the sleeping posture to that effect (time up). It is output to the notification unit 223. The timer unit 224 is prepared (generated) for each sensor ID, operates the timer for each sensor ID, and is erased at the timing described later. The predetermined time is set by the sleeping posture determination notification unit 223 to a value corresponding to the feature parameter as described above.

As shown by the broken line in FIG. 2, the management server device SV is further connected to the SV control processing unit 22 as needed, and for example, a server-side input unit (SV input) for inputting various commands and various data. Unit) 24, a server-side output unit (SV output unit) 25 that outputs various commands and data input by the SV input unit 24, and the fact that the constant sleeping posture has continued for a predetermined time, and an external device. A server-side interface unit (SVIF unit) 26 or the like that inputs / outputs data between the two may be provided. In this case, the SV input unit 24 may accept the input of the feature parameter, and corresponds to another example of the feature reception unit that accepts the input of the feature parameter.

Such a management server device SV can be configured by, for example, a computer having a communication function.

Next, the operation of this embodiment will be described. FIG. 3 is a flowchart showing a process for reducing the occurrence of bedsores in the management server device. FIG. 4 is a diagram for explaining a process for reducing the occurrence of bedsores in the management server device for a thin monitored person. FIG. 5 is a diagram for explaining a process for reducing the occurrence of bedsores in the management server device for a fat monitored person. In FIGS. 4 and 5, the horizontal axis is the elapsed time, and the vertical axis is the amount of movement.

In the monitored person monitoring system MS having the above configuration, when the power is turned on, each device SU, SV, SP, and TA executes necessary initialization of each part and starts its operation. In the management server device SV, the SV control processing unit 22 is functionally configured with the SV control unit 221 and the detection unit 222, the sleeping posture determination notification unit 223, and the timer unit 224 by executing the control processing program.

In the process for reducing the occurrence of floor slippage, the sensor device SV first generates the target image, and manages the communication signal (target image notification communication signal) accommodating the generated target image and the sensor ID of the own machine. Send to the device SV. The sensor device SV executes this operation at predetermined time intervals.

On the other hand, when the management server device SV acquires the target image from the sensor device SU in FIG. 3, the management server device SV stores the acquired target image in the SV storage unit 23 (S11). More specifically, in the present embodiment, when the management server device SV receives the target image notification communication signal in the SV communication IF unit 21, it is accommodated in the received target image notification communication signal by the SV control processing unit 22. The target image and the sensor ID are associated with each other, and the serial numbers for each sensor ID are associated with each other and stored in the SV storage unit 23. Instead of the serial number, it may be the reception time of the target image notification communication signal.

Next, the management server device SV obtains the amount of movement in order to detect the sleeping posture of the monitored person Ob by the detection unit 222 of the SV control processing unit 22 (S12). More specifically, the detection unit 222 first takes out the previously received target image corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11 from the SV storage unit 23. The previous determination is made based on the serial number assigned to each sensor ID. That is, among the serial numbers corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11, the target image corresponding to the largest serial number is the SV storage unit as the previously received target image. Taken out of 23. In the configuration in which only the previous target image is stored in the SV storage unit 23, the serial number can be omitted. Next, the detection unit 222 includes the target image (the previous target image) taken out from the SV storage unit 23 and the target image (the target this time) accommodated in the target image notification communication signal received in the process S11. Find the difference from the image). Then, the detection unit 222 totals the number of pixels having different pixel values, obtains this total value as the movement amount of the monitored person Ob, and obtains the obtained movement amount of the monitored person Ob (the total value). Output to the sleeping posture determination notification unit 223.

Next, the management server device SV corresponds to the sensor ID accommodated in the target image notification communication signal received in the processing S11 from the feature parameter information storage unit 231 by the sleeping posture determination notification unit 223 of the SV control processing unit 22. Then, the motion determination threshold value Th and the continuation determination time ΔT corresponding to the feature parameter corresponding to this sensor ID are acquired (S13).

Next, the management server device SV determines whether or not the amount of movement obtained by the detection unit 222 in the process S12 is equal to or greater than the motion determination threshold value Th acquired in the process S13 by the sleeping posture determination notification unit 223. As a result of this determination, when the movement amount is equal to or greater than the movement determination threshold value Th (Yes), the sleeping posture determination notification unit 223 ends this process after executing the next process S15. On the other hand, as a result of the determination, when the movement amount is not equal to or more than the movement determination threshold Th (when the movement amount is less than the movement determination threshold Th) (No), the sleeping posture determination notification unit 223 is next. Process S16 is executed.

In the process S15, the management server device SV sets the timer by the sleeping posture determination notification unit 223 when the timer of the timer unit 224 corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11 exists. to erase. Therefore, when the amount of motion obtained by the detection unit 222 in the process S12 becomes equal to or greater than the motion determination threshold value Th acquired in the process S13, the timer unit corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11. The 224 timer is cleared.

On the other hand, in the process S16, the management server device SV determines whether or not the timer unit 224 of the timer unit 224 corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11 exists by the sleeping posture determination notification unit 223. To judge. As a result of this determination, if the timer does not exist (No), the sleeping posture determination notification unit 223 ends this process after executing the next process S17. On the other hand, as a result of the determination, when the timer exists (Yes), the sleeping posture determination notification unit 223 executes the next process S19.

In the process S17, the management server device SV prepares (generates) a timer of the timer unit 224 corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11 by the sleeping posture determination notification unit 223, and processes the timer. The continuation determination time acquired in S13 is set to ΔT, and the reset starts. Therefore, when the amount of motion obtained by the detection unit 222 in the process S12 is not equal to or greater than the motion determination threshold value Th acquired in the process S13, the timer corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11. The timer of unit 224 is prepared (generated), reset, set to the continuation determination time ΔT acquired in the process S13, and its operation is started.

The timer of the timer unit 224, which is set to the continuation determination time ΔT acquired in the process S13 and reset-started, notifies the sleeping posture determination notification unit (time up) when the set continuation determination time ΔT elapses. Output to 223.

On the other hand, in the process S19, the management server device SV acquires the timer of the timer unit 224 corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11 by the sleeping posture determination notification unit 223 in the process S13. It is determined whether or not the continuation determination time is ΔT or more. In the present embodiment, the sleeping posture determination notification unit 223 determines whether or not the time is up from the timer of the timer unit 224 corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11. As a result of this determination, if the time-up has not been received (No), the sleeping posture determination notification unit 223 ends this process, while the time-up is received as a result of the determination (Yes). ), The sleeping posture determination notification unit 223 ends this process after executing the next process S20. Therefore, the amount of motion obtained by the detection unit 222 in the process S12 is not equal to or greater than the motion determination threshold value Th acquired in the process S13, and the timer unit corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11. If the 224 timer is not timed up, the operation of the timer is continued.

In this process S20, the management server device SV notifies the sleeping posture determination notification unit 223 that the constant sleeping posture has continued for a predetermined time. More specifically, the sleeping posture determination notification unit 223 has a transmission destination terminal device SP, TA associated with the sensor ID accommodated in the target image notification communication signal received in the process S11 from the notification destination correspondence relationship. (Terminal ID) is selected (searched), and the sleeping posture continuation notification communication signal is transmitted by the SV communication IF unit 21 to the selected terminal devices SP and TA. The sleeping posture continuation notification communication signal includes the sensor ID stored in the target image notification communication signal received in the process S11, the sleeping posture continuation notification information, and the recommended sleeping posture information based on the feature parameters as described above. NS. Therefore, when the amount of motion obtained by the detection unit 222 in the process S12 is continuously below the motion determination threshold value Th acquired in the process S13 exceeds the continuation determination time ΔT acquired in the process S13. The sleeping posture continuation notification communication signal is transmitted to predetermined terminal devices SP and TA. Then, the sleeping posture determination notification unit 223 erases the timer of the timer unit 224 corresponding to the sensor ID accommodated in the target image notification communication signal received in the process S11.

On the other hand, the terminal devices SP and TA that have received the sleeping posture continuation notification communication signal output to the outside that the constant sleeping posture has continued for a predetermined time. The output indicating that this constant sleeping posture has continued for a predetermined time may be an output of a warning sound, an output of vibration, or a display of a warning message. For example, in the present embodiment, the terminal devices SP and TA output a predetermined warning sound and are monitored by the sensor device SU having the sensor ID accommodated in the received sleeping posture continuation notification communication signal. The name and the sleeping posture represented by the recommended sleeping posture information accommodated in the received sleeping posture continuation notification communication signal are displayed.

As an example, the above-mentioned operation will be described with respect to the case where the monitored person Ob is a thin type. In FIG. 4, it is assumed that the timer is prepared and its operation is started at time 0 as described above. From time 0 to before time T11, the amount of movement falls below the first movement determination threshold Th1 for the lean type, and as a result of the timer existing without time-up, processing S11, processing S12, processing S13, processing S14 , Process S16 and process S19 are sequentially repeated, and the timer continues timing. At time T11, as a result of the movement amount becoming equal to or higher than the first movement determination threshold Th1 for the lean type, each process of process S11, process S12, process S13, process S14 and process S15 is executed, and the timer is deleted. NS. After the time T11 and before the time T12, as a result of the movement amount being equal to or higher than the first movement determination threshold Th1 for the lean type, the processes of the process S11, the process S12, the process S13, the process S14, and the process S15 are sequentially performed. Is repeated in. At time T12, the amount of movement falls below the first movement determination threshold Th1 for the lean type, and as a result of the absence of the timer, each process of process S11, process S12, process S13, process S14, process S16 and process S17 is performed. It is executed, the timer is prepared as described above, and its operation is started. After the time T12 and before the time T13, the amount of movement falls below the first movement determination threshold Th1 for the lean type, and the timer exists without time-up. As a result, processing S11, processing S12, processing S13, Each process of process S14, process S16, and process S19 is sequentially repeated, and the timer continues timing. Hereinafter, at time T13, the operation is the same as the above-mentioned operation at time T11, and after the time T13 and before the time T14, the operation is the same as the above-mentioned operation after the time T11 and before the time T12. At time T14, it operates in the same manner as the above-mentioned operation at time T12, and after time T14 and before time T15, it operates in the same manner as the above-mentioned operation after time T12 and before time T13. At time T15, the operation is the same as the above-mentioned operation at time T11, and after the time T15 and before the time T16, the operation is the same as the above-mentioned operation after the time T11 and before the time T12. Then, it operates in the same manner as the above-mentioned operation at the time T12, and after the time T16 and before the time T17, it operates in the same manner as the above-mentioned operation after the time T12 and before the time T13. At time T17, the operation is the same as the above-mentioned operation at time T11, and after the time T17 and before the time T18, the operation is the same as the above-mentioned operation after the time T11 and before the time T12. Then, it operates in the same manner as the above-mentioned operation at the time T12, and after the time T18 and before the time T19, it operates in the same manner as the above-mentioned operation after the time T12 and before the time T13. Then, at time T19, the amount of movement falls below the first movement determination threshold Th1 for the lean type, and as a result of the timer being timed up and existing, processing S11, processing S12, processing S13, processing S14, processing S16, processing Each process of S19 and process S20 is executed, the sleeping posture continuation notification communication signal is transmitted to the predetermined terminal devices SP and TA as described above, and the timer is deleted.

The terminal devices SP and TA that have received the sleeping posture continuation notification communication signal output a predetermined warning sound such as, for example, pip, pip, pip, ..., And are accommodated in the received sleeping posture continuation notification communication signal. The name of the person being monitored, which is monitored by the sensor device SU having the sensor ID, and the sleeping posture represented by the recommended sleeping posture information contained in the received sleeping posture continuation notification communication signal, for example, "Next, the posture in the left lateral direction". Please convert. ”Is displayed. The image after the nurse has changed the position is acquired, and the flow shown in FIG. 3 is repeated again.

On the other hand, as another example, the above-mentioned operation will be described with respect to the case where the monitored person Ob is thick. In FIG. 5, it is assumed that the timer is prepared and its operation is started at time 0 as described above. The change in the amount of movement with respect to the elapsed time when the monitored person Ob is thick is compared with the change in the amount of movement with respect to the elapsed time when the monitored person Ob is thin. As you can see, it is changing slowly. In FIG. 5, from time 0 to before time T21, the amount of movement falls below the second motion determination threshold Th2 for thick use, and as a result of the timer existing without time-up, the above-mentioned above-mentioned before time T11. It works in the same way as it works. At time T21, as a result of the amount of movement becoming equal to or greater than the second motion determination threshold Th2 for thick type, the operation is the same as the above-described operation at time T11. Here, the second movement determination threshold Th2 is larger than the first movement determination threshold Th1, the monitored person Ob is thick, and the change in the amount of movement with respect to the elapsed time is that the monitored person Ob is thin. As a result of the gradual change as compared with the change in the amount of movement with respect to time, the time from time 0 to time T21 is longer than the time from time 0 to time T11. Further, as a result, the change in the amount of movement with respect to the elapsed time when the monitored person Ob is thick is gradually changing as compared with the change in the amount of movement with respect to the elapsed time when the monitored person Ob is thin. , The time from time T21 to time T22 is longer than the time from time T11 to time T12. At time T22, the amount of movement falls below the first movement determination threshold Th1 for the lean type, and as a result of the absence of the timer, the operation is the same as the above-mentioned operation at time T12. After the time T22 and before the time T23, the amount of movement is below the second movement determination threshold Th2 for the thick type, and as a result of the timer existing without time-up, the time T12 is passed and before the time T13. It operates in the same manner as the above-mentioned operations up to. Hereinafter, at time T23, the operation is the same as the above-mentioned operation at time T11, and after the time T23 and before the time T24, the operation is the same as the above-mentioned operation after the time T11 and before the time T12. At time T24, it operates in the same manner as the above-mentioned operation at time T12, and after time T24 and before time T25, it operates in the same manner as the above-mentioned operation after time T12 and before time T13. Then, at time T25, the amount of movement falls below the second movement determination threshold Th2 for the thick type, and as a result of the timer being timed up and existing, processing S11, processing S12, processing S13, processing S14, processing S16, processing Each process of S19 and process S20 is executed, the sleeping posture continuation notification communication signal is transmitted to the predetermined terminal devices SP and TA as described above, and the timer is deleted. The terminal devices SP and TA that have received the sleeping posture continuation notification communication signal operate in the same manner as described above.

As described above, the monitored person monitoring system MS in the present embodiment, the sensor device SU and the management server device SV which are examples of the monitored person monitoring device, and the monitored person monitoring method implemented therein are the sensor device SU. Since the sleeping posture is detected based on the target image of the monitored person Ob generated by the imaging unit, the sleeping posture can be detected in a non-contact manner. Therefore, the monitored person monitoring system MS, the sensor device SU, the management server device SV, and the monitored person monitoring method can detect the sleeping posture without wearing a sensor and can reduce the occurrence of bedsores.

The likelihood (risk) of bedsores is not uniform, and some people are prone to bedsores and others are less likely to have bedsores. The monitored person monitoring system MS, the sensor device SU, the management server device SV, and the monitored person monitoring method are based on the feature parameters received by the SV communication IF unit 21 from the terminal devices SP and TA via the network NW. Since the predetermined time (continuation determination time) ΔT is changed, the predetermined time ΔT can be optimized according to the ease of occurrence of bedsores. For example, for a person who is relatively prone to bedsores (in one example, a thin person), the predetermined time ΔT is set short, and for a person who is relatively difficult to cause bedsores (in one example, a thick person). , The predetermined time ΔT is set longer.

In general, lean people are relatively prone to bedsores, and fat people are relatively less likely to have bedsores. People with paralysis are difficult to move and are relatively prone to bedsores. People with paralysis in the lower back are difficult to move and are relatively prone to bedsores. In addition, bedsores are relatively likely to occur on the lumbar region and buttocks. In the monitored person monitoring system MS, the sensor device SU, the management server device SV, and the monitored person monitoring method, when the feature parameter includes the body shape of the monitored person Ob, the monitored person sets the predetermined time ΔT. It can be optimized according to the body shape of Ob. The monitored person monitoring system MS, the sensor device SU, the management server device SV, and the monitored person monitoring method are subject to the predetermined time ΔT when the characteristic parameter includes the presence or absence of paralysis in the monitored person Ob. It can be optimized according to the presence or absence of paralysis in the observer Ob.

There is so-called postural change as a countermeasure against bedsores. Since the monitored person monitoring system MS, the sensor device SU, the management server device SV, and the monitored person monitoring method notify one or more of the selected sleeping postures, the observer such as a nurse or a caregiver notifies. The position of the monitored person Ob can be changed with reference to.

There is a preferable sleeping posture according to the characteristic parameters of the monitored person Ob. For example, if the right arm is paralyzed, it is preferable to have a sleeping posture in which the right arm does not fall under the trunk (the right arm is on the trunk). Further, for example, if the bed sore has already been formed, it is preferable to have a sleeping posture in which the bed sore is not under the trunk. The monitored person monitoring system MS, the sensor device SU, the management server device SV, and the monitored person monitoring method are used when notifying the sleeping posture when the feature parameter includes a paralyzed part in the monitored person Ob. Since the sleeping posture is selected based on the characteristic parameters, a more preferable sleeping posture can be notified.

In the above-described embodiment, the sleeping posture determination notification unit 223 selects the sleeping posture from the plurality of sleeping postures stored in the sleeping posture information storage unit 232 based on the above-mentioned feature parameters, but the sleeping posture determination is performed. The notification unit 223 may select a sleeping posture different from the constant sleeping posture that has continued for a predetermined time ΔT from the plurality of sleeping postures stored in the sleeping posture information storage unit 232.

FIG. 6 is a schematic view showing a state in which the monitored person is lying on his / her back. FIG. 7 is a schematic view showing a state in which the monitored person is lying on his / her stomach. FIG. 8 is a schematic view showing a state in which the monitored person is sleeping in a right lateral lying posture. FIG. 9 is a schematic view showing a state in which the monitored person is sleeping in a left sideways lying down posture.

In such a case, the detection unit 222, in addition to the calculation of the amount of movement based on the target image of the monitored person Ob received from the sensor device SU, for example, the supine lying posture, the right sideways lying posture, and the like. The distinction between the left lateral lying posture and the prone lying posture is determined and detected.

More specifically, in the operation shown in FIG. 3 described above, as shown by the broken line in FIG. 3, the detection unit 222 determines the sleeping posture between the processing S16 and the processing S19, and the determination result is stored in the SV. The process S18 to be stored in the unit 23 is added. More specifically, in the process S18, the detection unit 222 detects and determines the sleeping posture from the target image of the monitored person Ob accommodated in the target image notification communication signal received from the sensor device SU in the process S11. For example, the detection unit 222 extracts an image region of the head from the target image of the monitored person Ob, extracts a skin color region and a hair color region in the extracted image region of the head, and extracts the extracted skin color. The sleeping posture of the monitored person Ob is detected based on the region and the hair color region. An example of how to detect the sleeping posture will be described below.

With reference to FIGS. 6 to 9, the monitored person Ob is sleeping on the bed 41, and the futon 45 is hung on the body other than the head of the monitored person Ob. Reference numeral 43 is a code indicating a pillow. The skin color region 51 is a region of the face of the monitored person Ob. The color of the skin color region 51 is the skin color of the face of the monitored person Ob. The hair color region 53 is an region where hair grows on the head of the monitored person Ob. The color of the hair color region 53 is the color of the hair on the head of the monitored person Ob. First, the detection unit 222 extracts an image region of the head of the monitored person Ob by using the target image of the monitored person Ob. The head region of the monitored person Ob is extracted by, for example, a circular or elliptical Hough transform, for example, by pattern matching using a prepared head model, or by, for example, a neural network learned for head detection. Will be done. Next, the detection unit 222 extracts the skin color region 51 and the hair color region 53 in the extracted head region. These areas can be distinguished by the color of the pixel value. In the image region of the head of the monitored person Ob, if the hair color region 53 is present in most of the left side, the detection unit 222 turns the monitored person Ob's sleeping posture sideways with his left arm down. It is determined that the patient is lying on his / her right side (see FIG. 8). In the image region of the head of the monitored person Ob, if the hair color region 53 is present in most of the right side, the detection unit 222 sleeps with the monitored person Ob facing sideways with the right arm down. It is determined that the patient is in a left lateral lying posture (see FIG. 9). The detection unit 222 does not correspond to either the right lateral lying posture or the left lateral lying posture, and if the skin color region 51 is larger than the hair color region 53 in the head region, the sleeping posture of the monitored person Ob is on his back. It is determined that the person is lying on his / her back (see FIG. 6). The detection unit 222 does not correspond to either the right lateral lying posture or the left lateral lying posture, and if the hair color region 53 is larger than the skin color region 51 in the head region of the monitored person Ob, the monitored person Ob sleeps. The posture is determined to be a prone lying posture lying prone (see FIG. 7).

The technique of JP-A-2014-207934 may be used to detect the sleeping posture. The biological information acquisition device disclosed in Japanese Patent Application Laid-Open No. 2014-207934 is a detection unit that irradiates a subject with microwaves to detect microwaves reflected by the subject, and the detection unit detects the microwaves. It is provided with an extraction unit that extracts the respiratory component contained in the microwave and a determination unit that determines the sleeping position (backward, sideways, prone) based on the signal intensity of the respiratory component extracted by the extraction unit. ..

When the sleeping posture is determined in this way, the detection unit 222 associates the determination result with the sensor ID (monitored person Ob) and the determination time accommodated in the target image notification communication signal received in the process S11 and stores the SV. It is stored and recorded in the unit 23, and the determination result is output to the sleeping posture determination notification unit 223.

The sleeping posture determination notification unit 223 detects in the processing S18 from a plurality of sleeping postures stored in the sleeping posture information storage unit 232 when notifying that the constant sleeping posture has continued for a predetermined time in the processing S20. A sleeping posture different from the determination result input from the unit 222 is selected, and the selected sleeping posture is accommodated in the sleeping posture continuation notification communication signal as the recommended sleeping posture information, and the selected predetermined terminal device SP, The SV communication IF unit 21 transmits the sleeping posture continuation notification communication signal to the TA. For example, when the determination result input from the detection unit 222 in the process S18 is the supine lying posture, the sleeping posture determination notification unit 223 is at least one of the right lateral lying posture, the left lateral lying posture and the prone lying posture. Is selected as the recommended sleeping posture in the posture change.

Such a monitored person monitoring system MS, a sensor device SU, a management server device SV, and a monitored person monitoring method, when notifying the sleeping posture, sleep differently from the constant sleeping posture that has continued for a predetermined time ΔT. Since the posture is selected, the observer such as a nurse or a caregiver can change the monitored person Ob to a different sleeping posture, and can change the position of the monitored person more appropriately.

Further, in the above-described embodiment, the order receiving unit for receiving the input of the sleeping posture selection order in association with the monitored person Ob (sensor ID) is further provided, and the sleeping posture information storage unit 232 is provided by the SV control processing unit 22. The selection order received by the order reception unit is further stored in association with the monitored person Ob (sensor ID), and the sleeping posture determination notification unit 223 is stored in the sleeping posture information storage unit 232 for a plurality of sleeping postures. From among them, the sleeping posture may be selected according to the selection order corresponding to the sensor ID accommodated in the target image notification communication signal received from the sensor device SU in the process S11. Similar to the feature parameters, the selection order is input from, for example, the terminal devices SP and TA, received from the terminal devices SP and TA via the network NW by the SV communication IF unit 21, and input to the management server device SV. NS. In this case, the SV communication IF unit 21 corresponds to an example of the order reception unit. Further, for example, when the management server device SV includes the SV input unit 24 as described above, the selection order may be input from the SV input unit 24. In this case, the SV input unit 24 corresponds to another example of the order reception unit.

Such a monitored person monitoring system MS, a sensor device SU, a management server device SV, and a monitored person monitoring method select the sleeping posture according to the selection order when notifying the sleeping posture, so that a nurse or a caregiver The observer can change the monitored person Ob to a different sleeping posture, and can change the position of the monitored person Ob more appropriately.

Further, in these above-described embodiments, the sleeping posture information storage unit 232 may store the sleeping posture detected by the detection unit 222 as the plurality of sleeping postures in association with the monitored person Ob (sensor ID). .. In this case, for example, in the initial state, the sleeping posture information storage unit 232 does not store the sleeping posture, and in the above process S18, the detection unit 222 does not duplicate the determination result, so that the monitored person does not overlap. It is also stored in the sleeping posture information storage unit 232 in association with Ob (sensor ID).

In such a monitored person monitoring system MS, a sensor device SU, a management server device SV, and a monitored person monitoring method, the sleeping posture detected by the detection unit 222 is stored in the sleeping posture information storage unit 232, so that the monitored person It is possible to change the posture in a sleeping posture that the Ob can actually take, and it is possible to avoid a severe sleeping posture for the monitored Ob (a sleeping posture that the monitored Ob does not voluntarily take).

Further, in these above-described embodiments, the sleeping posture reception unit that receives the input of the sleeping posture in association with the monitored person Ob (sensor ID) is further provided, and the sleeping posture information storage unit 232 is provided by the SV control processing unit 22. The sleeping posture received by the sleeping posture reception unit may be associated with the monitored person Ob (sensor ID) and stored as the plurality of sleeping postures. The sleeping posture is input from, for example, the terminal devices SP and TA, received by the SV communication IF unit 21 from the terminal devices SP and TA via the network NW, and input to the management server device SV, similarly to the feature parameters. NS. In this case, the SV communication IF unit 21 corresponds to an example of the sleeping posture reception unit. Further, for example, when the management server device SV includes the SV input unit 24 as described above, the sleeping posture may be input from the SV input unit 24. In this case, the SV input unit 24 corresponds to another example of the sleeping posture reception unit.

Since such a monitored person monitoring system MS, a sensor device SU, a management server device SV, and a monitored person monitoring method include the sleeping posture reception unit, a preferred sleeping posture for the monitored person Ob, for example, a nurse It can be input at the discretion of a monitor such as a caregiver or a caregiver and stored in the sleeping posture information storage unit 232, and when the body position is changed, the position can be changed in a sleeping posture preferable for the monitored person Ob.

Further, in these above-described embodiments, as shown by a broken line in FIG. 2, the SV control processing unit 22 is functionally further provided with a flooring detection unit 225 for detecting the flooring of the monitored person Ob, and is an SV storage unit. 23 stores the sleeping posture (sleeping posture after entering the floor) first detected by the detection unit 222 after detecting the entry by the floor entry detection unit 225 in association with the monitored person Ob (sensor ID). The sleeping posture information storage unit 234 after entering the floor is further provided, and the sleeping posture determination notification unit 223 is stored in the sleeping posture information storage unit 234 after entering the floor when notifying the outside, and is received from the sensor device SU in the process S11. The sleeping posture after entering the bed corresponding to the sensor ID accommodated in the target image notification communication signal may be further notified.

For example, during the operation shown in FIG. 3, the bed entry detection unit 225 detects the entry of the monitored person Ob in parallel with the operation shown in FIG. 3 as follows. First, the location area of the bedding is stored in advance in the SV storage unit 23. Next, the bed entry detection unit 225 extracts a moving object region from the target image of the monitored person Ob accommodated in the target image notification communication signal received from the sensor device SU in the process S11 by, for example, the background subtraction method or the frame subtraction method. do. Next, when the moving body region changes with time from outside the location area of the bedding to into the location region of the bedding, the detection unit 222 determines that the bedding is present and detects the entry. Then, when this entry is detected, the detection unit 222 detects the sleeping posture of the monitored person Ob (for example, the supine lying posture, the right lateral lying posture, the left lateral lying posture, and the prone posture) as described above. (Apart from lying posture, etc.) is determined and detected, and this detection result is associated with the sensor ID (monitored person Ob) accommodated in the target image notification communication signal received in the process S11 and the determination time after entering the bed. It is stored in the sleeping posture information storage unit 234.

Such a monitored person monitoring system MS, a sensor device SU, a management server device SV, and a monitored person monitoring method are used by the detection unit 222 after detecting the floor entry by the floor detection unit 225 when notifying the outside. Since the first detected sleeping posture after entering the bed is selected, it is highly probable that the monitored person Ob can be changed to a different sleeping posture, and the monitored person Ob can be positioned more appropriately. Can be converted.

Further, in these above-described embodiments, the sleeping posture reception unit further receives input of at least one of the right knee angle and the left knee angle in association with the monitored person Ob (sensor ID), and the sleeping posture is received. The information storage unit 232 further stores at least one of the right knee angle and the left knee angle received by the sleeping posture reception unit in association with the monitored person Ob (sensor ID), and further stores the sleeping posture determination notification unit. The right knee angle of the right knee corresponding to the sensor ID (monitored person Ob) stored in the sleeping posture information storage unit 232 and stored in the target image notification communication signal received in the process S11 when the 223 is notified to the outside. And at least one of the left knee angles may be further notified.

Such a monitored person monitoring system MS, a sensor device SU, a management server device SV, and a monitored person monitoring method are the monitored person Ob (sensor) stored in the sleeping posture information storage unit 232 when notifying the outside. Since at least one of the right knee angle and the left knee angle corresponding to the ID) is further notified, the observer such as a nurse or a caregiver is covered with a preferable knee angle according to the condition of the monitored person Ob. The observer can be repositioned.

Further, in these above-described embodiments, the sleeping posture reception unit further accepts input of information on elements that can be used to prevent floor slippage (decubitus) in association with the monitored person Ob (sensor ID), and the sleeping posture is received. The information storage unit 232 further stores the information of the element received by the sleeping posture reception unit in association with the monitored person Ob (sensor ID), and the sleeping posture determination notification unit 223 notifies the outside when the information is further stored. The information of the element corresponding to the sensor ID (monitored person Ob) stored in the sleeping posture information storage unit 232 and stored in the target image notification communication signal received in the process S11 may be further notified.

Such a monitored person monitoring system MS, a sensor device SU, a management server device SV, and a monitored person monitoring method are the monitored person Ob (sensor) stored in the sleeping posture information storage unit 232 when notifying the outside. Since the information of the above-mentioned elements corresponding to the ID), for example, bedding such as pillows and cushions, and the above-mentioned elements that can be used to prevent bedsores such as welfare equipment, is further notified, the observer such as a nurse or a caregiver can use it. The position of the monitored person Ob can be changed by using a preferable tool according to the state of the monitored person Ob.

Further, in the above-described embodiment, whether or not the constant sleeping posture of the monitored person Ob continues for a predetermined time is determined by the movement amount (first movement amount) obtained from the target image. It may be determined by the amount of movement (second amount of movement) obtained from the output of the Doppler sensor. Alternatively, whether or not the constant sleeping posture of the monitored person Ob continues for a predetermined time is determined by the movement amount (first movement amount) obtained from the target image and the movement obtained from the output of the Doppler sensor. It may be determined based on the amount (second movement amount). For example, whether or not a constant sleeping posture of the monitored person Ob continues for a predetermined time is determined by the average value or the weighted average value of the first and second movement amounts.

In such a case, the sensor device SU is provided with a Doppler sensor in place of the image pickup unit or in addition to the image pickup unit, and is transmitted to the management server device SV together with the target image or in place of the target image. ..

This Doppler sensor is a body motion sensor that transmits a transmitted wave, receives a reflected wave of the transmitted wave reflected by an object, and outputs a Doppler signal of a Doppler frequency component based on the transmitted wave and the reflected wave. .. When the object is moving, the frequency of the reflected wave shifts in proportion to the moving speed of the object due to the so-called Doppler effect, so that there is a difference (Doppler frequency component) between the frequency of the transmitted wave and the frequency of the reflected wave. Occurs. The Doppler sensor generates a signal of the Doppler frequency component as a Doppler signal and outputs the signal to the processing unit of the sensor device SU. The transmitted wave may be an ultrasonic wave, a microwave, or the like, but in the present embodiment, it is a microwave. Since the microwave can pass through the clothes and be reflected on the body surface of the monitored person Ob, the movement of the body surface can be detected even if the monitored person Ob is wearing clothes, which is preferable.

For example, when the body moves such as turning over, the body movement is observed by the Doppler sensor. The body movement is a mixture of slow-moving body movements and fast-moving limb movements, and is a relatively large movement that is aperiodic. The Doppler signal corresponding to the body movement in which each part of the body moves in various ways is a relatively wide band signal having a relatively large signal strength, and in time and space, the amplitude is relatively large and the amplitude increases with the passage of time. The signal changes irregularly, and in the frequency space, it has a relatively flat profile with no peak at a specific frequency component. On the other hand, at rest, when there is relatively little body movement, movement due to breathing is observed by the Doppler sensor. The breathing movement appears as a vertical movement of the chest, and becomes a periodic movement with a relatively small movement. In resting breathing, the chest generally moves up and down at about 12 to 25 beats / minute and about 0.2 Hz to 0.4 Hz. The Doppler signal corresponding to such a breathing movement is a relatively narrow band signal having a relatively small signal strength, and in time and space, the amplitude is relatively small and the amplitude changes regularly with the passage of time. In the frequency space, the profile has a peak at a specific frequency component (for example, about 0.3 Hz).

Therefore, the detection unit 222 frequency-analyzes the Doppler signal received from the sensor device SU by, for example, a fast Fourier transform, obtains the Doppler signal in the frequency space, and the Doppler signal in the obtained frequency space is superior to any of the above profiles. By determining whether or not to indicate, it is possible to determine whether the body is moving or resting (that is, while maintaining a constant posture).

As described above, this specification discloses various aspects of technology, of which the main technologies are summarized below.

The monitored person monitoring device according to one aspect is constant based on a sleeping posture detecting unit that non-contactly detects the sleeping posture of the monitored person to be monitored and the detection result of the sleeping posture detecting unit. It is provided with a sleeping posture determination notification unit that notifies the outside when the sleeping posture continues for a predetermined time. Preferably, in the above-mentioned monitored person monitoring device, the sleeping posture detecting unit detects the sleeping posture of the monitored person based on the image of the monitored person. Preferably, in the above-mentioned monitored person monitoring device, the sleeping posture detecting unit extracts an image region of the head from the image of the monitored person, and the skin color region and the hair color in the extracted image region of the head. A region is extracted, and the sleeping posture of the monitored person is detected based on the extracted skin color region and hair color region. Preferably, the monitored person monitoring device includes first and second devices that are communicatively connected to each other, and the sleeping posture detecting unit includes an imaging unit that generates an image of the monitored person and the imaging unit. The first apparatus includes the imaging unit, and the second apparatus includes the detection unit, which includes a detection unit that detects the sleeping posture of the monitored person based on the image of the monitored person generated by the unit. A unit and the sleeping posture determination notification unit are provided.

Since such a monitored person monitoring device includes a sleeping posture detecting unit that detects the sleeping posture in a non-contact manner, the sleeping posture can be detected without wearing a sensor, and the occurrence of bedsores can be reduced.

In another aspect, the monitored person monitoring device further includes a feature receiving unit that receives input of a predetermined feature parameter related to the occurrence of bedsore in the monitored person, and the sleeping posture determination notification unit is the above-mentioned. The predetermined time is changed based on the feature parameter received by the feature reception unit.

The likelihood (risk) of bedsores is not uniform, and some people are prone to bedsores and others are less likely to have bedsores. Since the monitored person monitoring device changes the predetermined time based on the feature parameter received by the feature receiving unit, the predetermined time can be optimized according to the susceptibility of bedsores to occur. For example, a person who is relatively prone to bedsores is set to have a shorter predetermined time, and a person who is relatively less likely to have bedsores is set to have a longer time ((for people who are prone to bedsores). Corresponding predetermined time) <(The predetermined time corresponding to a person who is unlikely to have bedsores)).

In another aspect, in the above-mentioned monitored person monitoring device, the characteristic parameter is at least one of the body shape of the monitored person, the presence or absence of paralysis in the monitored person, and the location of paralysis in the monitored person. Including one.

In general, lean people are relatively prone to bedsores, and fat people are relatively less likely to have bedsores. People with paralysis are difficult to move and are relatively prone to bedsores. People with paralysis in the lower back are difficult to move and are relatively prone to bedsores. Bedsores are relatively likely to occur on the lumbar and buttocks. When the feature parameter includes the body shape of the monitored person, the monitored person monitoring device can optimize the predetermined time according to the body shape of the monitored person. When the feature parameter includes the presence or absence of paralysis in the monitored person, the monitored person monitoring device can optimize the predetermined time according to the presence or absence of paralysis in the monitored person.

In another aspect, the above-mentioned monitored person monitoring device further includes a sleeping posture information storage unit that stores a plurality of different sleeping postures, and the sleeping posture determination notification unit receives the notification to the outside when notifying the outside. One or a plurality of sleeping postures are selected from the plurality of sleeping postures stored in the sleeping posture information storage unit, and the selected sleeping posture is further notified. Preferably, in the above-mentioned monitored person monitoring device, the plurality of different sleeping postures are a supine lying posture lying on the back, a right lateral lying posture sleeping sideways with the left arm down, and a right arm down. Includes a left sideways lying position lying sideways and a prone lying down position lying prone.

There is so-called postural change as a countermeasure against bedsores. Since the monitored person monitoring device notifies the selected one or more sleeping postures, a monitor such as a nurse or a caregiver can change the position of the monitored person with reference to the notification.

In another aspect, in the above-mentioned monitored person monitoring device, the sleeping posture determination notification unit is input from the feature receiving unit from among a plurality of sleeping postures stored in the sleeping posture information storage unit. The sleeping posture is selected based on the characteristic parameters.

There is a preferable sleeping posture according to the characteristic parameters of the monitored person. For example, if the right arm is paralyzed, it is preferable to have a sleeping posture in which the right arm does not fall under the trunk (the right arm is on the trunk). Further, for example, if the bed sore has already been formed, it is preferable to have a sleeping posture in which the bed sore is not under the trunk. When the feature parameter includes a paralyzed part in the monitored person, the monitored person monitoring device selects the sleeping posture based on the feature parameter when notifying the sleeping posture, which is more preferable. You can notify your posture.

In another aspect, in the above-mentioned monitored person monitoring device, the sleeping posture determination notification unit is a constant one that continues for a predetermined time from a plurality of sleeping postures stored in the sleeping posture information storage unit. Select a sleeping posture that is different from the sleeping posture.

When notifying the sleeping posture, such a monitored person monitoring device selects a sleeping posture different from the constant sleeping posture that has continued for a predetermined time, so that a monitor such as a nurse or a caregiver is subject to the sleeping posture. The observer can be changed to a different sleeping posture, and the monitored person can be repositioned more appropriately.

In another aspect, the monitored person monitoring device further includes an order receiving unit that receives input of a sleeping posture selection order in association with the monitored person, and the sleeping posture information storage unit receives the order. The selection order received by the unit is further stored, and the sleeping posture determination notification unit selects a sleeping posture from a plurality of sleeping postures stored in the sleeping posture information storage unit according to the selection order.

Since such a monitored person monitoring device selects the sleeping posture according to the selection order when notifying the sleeping posture, a monitor such as a nurse or a caregiver can change the monitored person to a different sleeping posture. , The monitored person can be repositioned more appropriately.

In another aspect, in the above-mentioned monitored person monitoring device, the sleeping posture information storage unit associates the sleeping posture detected by the sleeping posture detecting unit with the monitored person as the plurality of sleeping postures. Remember.

Since such a monitored person monitoring device stores the sleeping posture detected by the sleeping posture detecting unit in the sleeping posture information storage unit, it is possible to change the position in the sleeping posture that the monitored person can actually take, and the monitored person can be monitored. It is possible to avoid a strict sleeping posture for a person.

In another aspect, the above-mentioned monitored person monitoring device further includes a sleeping posture reception unit that receives an input of a sleeping posture in association with the monitored person, and the sleeping posture information storage unit receives the sleeping posture. The sleeping posture received by the unit is associated with the monitored person and stored as the plurality of sleeping postures.

Since such a monitored person monitoring device includes a sleeping posture reception unit, it is possible to input a sleeping posture preferable for the monitored person and store it in the sleeping posture information storage unit, which is preferable for the monitored person. You can change your posture with.

In another aspect, in the above-mentioned monitored person monitoring device, the flooring detection unit that detects the person being monitored and the sleeping posture detection unit that detects the flooring by the flooring detection unit. A post-floor sleeping posture information storage unit that stores the first detected sleeping posture is further provided, and the sleeping posture determination notification unit stores the sleeping posture information storage unit after entering the floor when notifying the outside. Further notify the sleeping posture.

When notifying the outside, such a monitored person monitoring device selects the sleeping posture first detected by the sleeping posture detecting unit after detecting the flooring by the flooring detecting unit, so that the caregiver It is highly probable that a monitor such as a caregiver or a caregiver can change the monitored person to a different sleeping posture, and can change the position of the monitored person more appropriately.

In another aspect, in these above-mentioned monitored person monitoring devices, the sleeping posture receiving unit further receives input of at least one of the right knee angle and the left knee angle in association with the monitored person. The sleeping posture information storage unit further stores at least one of the right knee angle and the left knee angle received by the sleeping posture reception unit in association with the monitored person, and further stores the sleeping posture determination notification unit. Further notifies at least one of the right knee angle and the left knee angle corresponding to the monitored person stored in the sleeping posture information storage unit when notifying the outside.

There is a preferred knee angle depending on the condition of the person being monitored. When the monitored person monitoring device notifies the outside, it further notifies at least one of the right knee angle and the left knee angle corresponding to the monitored person stored in the sleeping posture information storage unit. Therefore, the observer such as a nurse or a caregiver can change the position of the monitored person at a preferable knee angle according to the state of the monitored person.

In another aspect, in the above-mentioned monitored person monitoring device, the sleeping posture receiving unit further accepts input of information of an element that can be used in association with the monitored person to prevent floor slippage, and the sleeping posture receiving unit further accepts input of information. The posture information storage unit further stores the information of the element received by the sleeping posture receiving unit in association with the monitored person, and the sleeping posture determination notification unit receives the sleeping posture when notifying the outside. The information of the element corresponding to the monitored person stored in the information storage unit is further notified.

Such a monitored person monitoring device corresponds to the monitored person stored in the sleeping posture information storage unit when notifying the outside, for example, bedding such as a pillow or a cushion, welfare equipment, or the like. Since the information on the above-mentioned elements that can be used to prevent bedsores (decubitus) is further notified, observers such as nurses and caregivers use suitable tools according to the condition of the monitored person. You can change your posture.

The monitored person monitoring method according to the other aspect is based on a sleeping posture detecting step of non-contactly detecting the sleeping posture of the monitored person to be monitored and a detection result of the sleeping posture detecting step. It is characterized by including a sleeping posture determination notification process for notifying the outside when a constant sleeping posture continues for a predetermined time.

Since such a monitored person monitoring method includes a sleeping posture detecting step of detecting the sleeping posture in a non-contact manner, the sleeping posture can be detected without wearing a sensor, and the occurrence of bedsores can be reduced.

The monitored person monitoring system according to the other aspect is a monitored person monitoring system including a terminal device and a monitored person monitoring device that is communicably connected to the terminal device and monitors the monitored person to be monitored. The monitored person monitoring device is one of the above-mentioned monitored person monitoring devices.

Since such a monitored person monitoring system uses any of the above-mentioned monitored person monitoring devices, the sleeping posture can be detected without wearing a sensor, and the occurrence of bedsores can be reduced.

This application is based on Japanese Patent Application No. 2016-83441 filed on April 19, 2016, the contents of which are included in the present application.

In order to express the present invention, the present invention has been appropriately and sufficiently described through the embodiments with reference to the drawings above, but those skilled in the art can easily change and / or improve the above embodiments. It should be recognized that it can be done. Therefore, unless the modified or improved form implemented by a person skilled in the art is at a level that deviates from the scope of rights of the claims stated in the claims, the modified form or the improved form is the scope of rights of the claims. It is interpreted as being comprehensively included in.

According to the present invention, a monitored person monitoring device, a monitored person monitoring method, and a monitored person monitoring system can be provided.

Claims (15)

A sleeping posture detection unit that detects the sleeping posture of the monitored person to be monitored without attaching a mounting member for detecting the sleeping posture to the monitored person.
A feature parameter information storage unit that stores feature parameters including information on the location of paralysis in the monitored person, and a feature parameter information storage unit .
It is provided with a sleeping posture determination notification unit that notifies the outside when a constant sleeping posture continues for a predetermined time based on the detection result of the sleeping posture detecting unit and the information of the paralyzed portion.
Observed person monitoring device. Further provided with a feature reception unit that accepts input of predetermined feature parameters related to the occurrence of bedsores in the monitored person.
The sleeping posture determination notification unit changes the predetermined time based on the feature parameter received by the feature reception unit.
The monitored person monitoring device according to claim 1. The characteristic parameters include at least one of the body shape of the monitored person, the presence or absence of paralysis in the monitored person, and the location of paralysis in the monitored person.
The monitored person monitoring device according to claim 2. It also has a sleeping posture information storage unit that stores multiple sleeping postures that are different from each other.
When notifying the outside, the sleeping posture determination notification unit selects one or a plurality of sleeping postures from the plurality of sleeping postures stored in the sleeping posture information storage unit, and further selects the selected sleeping posture. Notice,
The monitored person monitoring device according to any one of claims 1 to 3. The sleeping posture determination notification unit selects a sleeping posture from a plurality of sleeping postures stored in the sleeping posture information storage unit based on the feature parameters input from the feature receiving unit.
The monitored person monitoring device according to claim 4, which cites claim 2 or claim 3. The sleeping posture determination notification unit selects a sleeping posture different from a constant sleeping posture that has continued for a predetermined time from a plurality of sleeping postures stored in the sleeping posture information storage unit.
The monitored person monitoring device according to claim 4 or 5. It is further provided with an order reception unit that receives input of a sleeping posture selection order in association with the monitored person.
The sleeping posture information storage unit further stores the selection order received by the order reception unit.
The sleeping posture determination notification unit selects a sleeping posture from a plurality of sleeping postures stored in the sleeping posture information storage unit according to the selection order.
The monitored person monitoring device according to claim 4. The sleeping posture information storage unit stores the sleeping posture detected by the sleeping posture detecting unit as the plurality of sleeping postures in association with the monitored person.
The monitored person monitoring device according to any one of claims 4 to 7. A sleeping posture reception unit that receives input of a sleeping posture in association with the monitored person is further provided.
The sleeping posture information storage unit stores the sleeping posture received by the sleeping posture reception unit as the plurality of sleeping postures in association with the monitored person.
The monitored person monitoring device according to any one of claims 4 to 7. The flooring detection unit that detects the flooring of the monitored person, and
A post-floor sleeping posture information storage unit that stores the sleeping posture first detected by the sleeping posture detecting unit after the flooring is detected by the flooring detecting unit is further provided.
When notifying the outside, the sleeping posture determination notification unit further notifies the sleeping posture stored in the sleeping posture information storage unit after entering the bed.
The monitored person monitoring device according to any one of claims 1 to 3. The sleeping posture reception unit further receives input of at least one of the right knee angle and the left knee angle in association with the monitored person.
The sleeping posture information storage unit further stores at least one of the right knee angle and the left knee angle received by the sleeping posture reception unit in association with the monitored person.
When notifying the outside, the sleeping posture determination notification unit further notifies at least one of the right knee angle and the left knee angle corresponding to the monitored person stored in the sleeping posture information storage unit. do,
The monitored person monitoring device according to any one of claims 1 to 10. The sleeping posture reception unit further accepts input of information on elements that can be used to prevent bedsores in association with the monitored person.
The sleeping posture information storage unit further stores the information of the element received by the sleeping posture reception unit in association with the monitored person.
When notifying the outside, the sleeping posture determination notification unit further notifies the information of the element corresponding to the monitored person stored in the sleeping posture information storage unit.
The monitored person monitoring device according to any one of claims 1 to 11. A sleeping posture detection step of detecting a sleeping posture, which is a sleeping posture of a monitored person to be monitored, without attaching a mounting member for detecting the sleeping posture to the monitored person.
It is provided with a sleeping posture determination notification step of notifying the outside when a constant sleeping posture continues for a predetermined time based on the detection result of the sleeping posture detecting step and the information of the paralyzed portion in the monitored person.
Observed person monitoring method. A monitored person monitoring system including a terminal device and a monitored person monitoring device that is communicably connected to the terminal device and monitors the monitored person to be monitored.
The monitored person monitoring device is the monitored person monitoring device according to any one of claims 1 to 11.
Observed person monitoring system. The sleeping posture, which is the sleeping posture of the monitored person to be monitored, is detected without attaching the mounting member for detecting the sleeping posture to the monitored person, and the sleeping posture detection result and the paralysis in the monitored person. A program that causes a computer to perform information processing including a sleeping posture determination notification process that notifies the outside when a certain sleeping posture continues for a predetermined time based on location information .

Images