JP2001057996A - Nursing aid device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nursing aid device that monitors the moving state of a cared person on a bed in the real time, automatically analyzes the state, certainly detects necessity that a nurse must attend to the cared person and gives a display like an alarm. SOLUTION: By providing more than three weight sensors for each of plural bends, position of the gravity center (Gx and Gy) of a cared person on a bed is determined through calculation and, from combination of such data relating to position of the gravity center as moving quantity, frequency and speed of movement of the cared person, for instance, as time elapses, pattern of activity for every cared person is calculated. When the pattern of activity obtained through calculation differs from the ordinary one, the cared person can be judged to be in a state to be cared. Further conducted is judgment of whether the moving range of the position of the gravity center is within a prescribed section requiring care on the bed or in a shift of the gravity center predicting leaving bed, and the reporting history of leaving bed, moving state, straight sitting, demand to help turn-over in bed are displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for assisting a caregiver of a care receiver such as a patient with senile dementia. As used herein, the term "care" also includes nursing.

[0002]

2. Description of the Related Art In welfare facilities, medical facilities, and the like, care of a cared person including a patient is a burden on the carer. Also,
The population to be cared for is increasing year by year, and the burden of care work per caregiver is also increasing. For this reason, it is becoming more difficult to provide meticulous care.

[0003] In order to reduce the burden on the caregiver and to provide meticulous care for the cared person, the situation of the cared person on the bed is grasped in real time, and the care work according to the situation can be performed accurately. It is urgent to do so. Also, at night or the like, the number of caregivers is small, and there is a strong need for the development of a system for grasping the situation of a cared person in a centralized management room such as a nurse station.

With the aging of the population, the number of demented elderly is increasing. In addition, at present, the nursing ability at home is decreasing due to the declining birthrate and the nuclear family, so that countermeasures against demented elderly are a major issue. In light of these circumstances, facilities such as nursing homes for the elderly and nursing homes for the elderly have been gradually established in various places. However, even now, the working environment of caregivers working in such facilities is not good. In particular, working at night is very harsh considering the behavior of the elderly with dementia regardless of day or night. Elderly people who are being cared for are often exposed to unforeseen situations because they do not have a means to accurately convey the state of seeking care.

[0005] As a method for grasping the activity status of a patient in real time, there is a method of monitoring with a surveillance camera. However, from the viewpoint of protecting the privacy of a cared person, a method of directly monitoring with a surveillance camera is not desirable from the viewpoint of society.

As a system for monitoring the wandering of a demented elderly at night, there is a method of monitoring the state of a hospital room at night with a camera. However, due to human rights issues, monitoring throughout the day is difficult. In addition, there is a limit to the task of keeping watching the monitor camera.

[0007] A method of attaching a transmitter to the body of an old man and tracking the position of the transmitter has been considered, but the old man sometimes removes the transmitter by himself, which is an expensive system. It has not spread.

There is a method of detecting an abnormal operation of an elderly person as a sound. This is also difficult to detect accurately from various sound sources that actually occur.

[0009] A typical prior art is Japanese Patent Publication No. 3-51411.
And JP-A-10-201719. In these prior arts, a load cell and a weight sensor are provided on the legs of a bed where a cared person such as a patient is present, the weight of the cared person on the bed is managed, and the cared person does not exist on the bed. An alarm is generated when the user gets out of bed.

[0010] In these prior arts, the occurrence of leaving the care-receiver on the bed cannot be predicted in advance, and the abnormal state of the care-receiver cannot be grasped.

Further, when the caregiver wants to obtain a nurse call in response to the movement of the elderly, it is not limited to leaving the bed. For example, if the old man makes an active movement on the bed, it is an unusual situation and the caregiver should go to the old man. In particular, in the case of elderly people with dementia, their behavior patterns differ from individual to individual. It has been found that a system that automatically alerts the elderly when they should be able to ring a nurse call on their own is preferred.

[0012]

SUMMARY OF THE INVENTION It is an object of the present invention to monitor the activity of a cared person on a bed in real time,
It is an object of the present invention to provide a care support apparatus that automatically analyzes and reliably detects that a caregiver, who is a care worker, must go to a cared person and displays an alarm or the like.

[0013]

According to the present invention, there is provided a data calculating means for calculating data relating to the position of the center of gravity of a cared person on a bed with the passage of time, and said data responding to an output of the data calculating means. And determining means for determining whether to care for the cared person, and the data calculation means includes:
A momentum calculating means for calculating a momentum which is a sum of distances moved on the bed within a predetermined time; a movement number calculating means for counting the number of times from when the center of gravity starts moving on the bed until it stops; And at least two of motion speed calculating means for calculating a motion speed from when the center of gravity starts moving to when the center of gravity stops, and further, a motion amount calculating means, a motion frequency calculating means, a motion speed calculating means, And an activity pattern calculating means for calculating an activity pattern comprising a combination of the magnitudes of the outputs in response to at least two of the outputs. The nursing support device is characterized in that it determines whether the activity pattern obtained in the above is a normal activity pattern of the care receiver.

According to the present invention, the data relating to the position of the center of gravity with the passage of time calculated by the data calculating means is at least one of the amount of exercise, the number of exercises, and the exercise speed of the cared person on the bed. An activity pattern for each cared person is calculated based on a combination of the at least two outputs including the two. When it is determined by the determining means that the activity pattern obtained by the calculation is not a normal activity pattern and the care receiver should be cared for, the fact is displayed by the display means. Thus, the caregiver can care for the cared person. The normal activity pattern is an activity pattern that does not require care of the cared person. In this way, the activity data of the cared person can be automatically extracted from the movement history of the center of gravity of each cared person, or the caregiver can directly extract the activity data of the cared person to obtain the cared person's activity pattern.

The amount of exercise is the moving distance of the position of the center of gravity of the cared person within a predetermined time, and can be said to be the moving distance of the position of the center of gravity per unit time. The number of times of exercise is defined as the number of times from when the center of gravity of the cared person starts moving on the bed to when it stops, and the number of times is counted over a predetermined time, thereby obtaining the number of times of exercise. The exercise speed is the speed of movement of the position of the center of gravity of the care receiver on the bed. A configuration for calculating the activity pattern to determine whether to care for the care receiver will be described later with reference to FIG.

According to the present invention, there is provided a data processing means for calculating data relating to the position of the center of gravity of the care receiver on the bed with the lapse of time. Determination means for determining whether or not to care for, the data calculation means obtains a moving area of the position of the center of gravity on the bed within a predetermined time, and the determination means determines that the moving area obtained by the data calculation means is
A care support apparatus characterized in that it is determined whether or not the section is a predetermined section on a bed where a care receiver should be cared.

According to the present invention, as will be described later with reference to FIGS. 26 and 27, the movement area of the position of the center of gravity on the bed of the care giver within a predetermined time is obtained, and the normal bed of the care receiver is obtained. Extract the position above. The plane of the bed on which the cared person can ride is divided into a plurality of sections, and one or more sections where the caregiver is usually located are determined. When there is no cared person in the normal section, there may be an abnormality in the cared person, and the judgment means judges this, so that the cared person can be cared for at an early stage. become.

According to the present invention, there is also provided a data calculating means for calculating data relating to the position of the center of gravity of the care receiver over time on a bed, and a response to the output of the data calculating means. Determining means for determining whether or not to care for the patient, wherein the data calculating means includes a predicted leaving section detecting means for detecting that the position of the center of gravity on the bed is in a predicted leaving section which is a peripheral portion of the bed; In response to the output of the detecting means, when the position of the center of gravity is in the leaving-bed prediction section, having a moving direction detecting means for detecting the moving direction of the center of gravity, the determining means responds to the output of the moving direction detecting means,
The nursing care support device is characterized in that it determines whether or not the detected moving direction is a predetermined direction in which the care receiver has a high probability of leaving the bed.

According to the present invention, as will be described later with reference to FIGS. 28 to 32, it is detected that the position of the center of gravity of the cared person is in a predetermined leaving prediction section at the periphery of the bed. When the center of gravity moving direction is detected, and when this moving direction is a predetermined direction in which the care receiver is likely to leave the bed, the care receiver is expected to leave the bed before leaving the bed, This is communicated to the caregiver by the display means. This allows the caregiver to take care of the caregiver before leaving the bed.
Care can be performed, which can prevent accidents such as falling of the care recipient from the bed that occurs when leaving the bed, or prevent falling of the care recipient and wandering of the care recipient after leaving the bed. It can be prevented beforehand.

Further, in the present invention, the leaving-bed prediction section is divided into a plurality of small sections, and each of the small sections is divided into a plurality of areas that divide the center of gravity moving direction in a circumferential direction. Is determined based on the direction section area to which the moving direction belongs, and the determining unit determines the leaving probability ρ in the moving direction. When the moving direction is equal to or larger than a predetermined value ρo, the detected moving direction is determined to be a predetermined direction having a high probability of leaving the bed.

According to the present invention, each small section is divided into a plurality of direction section areas, and the bed leaving probability ρ
Is set, when the direction in which the cared person moves is detected, the leaving probability ρ in that direction can be obtained from the direction segmented area to which that direction belongs. Further, when the obtained leaving-occurrence probability ρ is equal to or greater than a predetermined value ρo, it can be determined that the direction is the direction having the higher leaving-probability, and when such determination is made, the leaving-bed occurs as described above. The display can be performed by the display means to generate an alarm.

Further, according to the present invention, there are provided a plurality of weight detecting elements provided at a lower portion of a bed for a cared person for detecting weight, and a position of a center of gravity of the cared person on the bed in response to an output of the weight detecting element. A center of gravity calculating means for calculating, and a display means for displaying that the care receiver should be cared for in response to the output of the determining means. And the total value AL of the distances D from which the center of gravity has moved on the bed within the predetermined time n is a normal activity of the care receiver. Active state detection means for detecting that the state is out of a predetermined value range,
End seat detecting means for detecting that the position of the center of gravity on the bed is in the end seat detecting section which is the periphery of the bed, and a total value GM of a distance moved by the center of gravity on the bed within a predetermined time M
Has at least one of turn-over support detecting means for detecting that the care receiver should be less than a predetermined value G0 at which the cared person should turn over, and further comprises leaving-bed detecting means, active state detecting means, and end seat detecting means. A memory for storing the output of at least one of the means and the turnover support detecting means for a predetermined time is provided, and the display means displays the stored contents of the memory.

According to the present invention, as will be described later with reference to FIG. 28, the data calculation means detects at least one of leaving bed, active state, end seat, and turning support request,
The information is stored in the memory for a predetermined time, and the report history is displayed by the display means, for example, as described later with reference to FIGS. This makes it possible to know the frequency at which care is required for each cared person, and to easily prepare for caring for each cared person.

According to the present invention, a plurality of beds are provided,
A weight detecting element and a center of gravity calculating means are provided for each bed, and the data calculating means calculates the data for each bed and displays the data on the display means.

According to the present invention, the center of gravity calculating means is provided in each bed of each of the plurality of cared persons, whereby the output from the weight detecting element of each bed is given to calculate the center of gravity. Can reduce the computational load of the circuit. The data operation means may be provided for each bed, and the output of the data operation means may be transmitted to, for example, a nurse station, thereby further reducing the operation load of subsequent circuits. Become. The data calculation means for each bed may be provided, for example, in a nurse station, and the output of the center-of-gravity calculation means may be transmitted and provided to the data calculation means.

According to the present invention, the data calculation means stores the position of the center of gravity in a memory for a predetermined time,
The trajectory of the position of the center of gravity stored in the memory is displayed by the display means.

According to the present invention, as will be described later with reference to FIGS. 18 and 22, the locus of the position of the center of gravity of the cared person on the bed is displayed by the display means, whereby the cared person is displayed. By storing the center of gravity data, it is possible to know the moving state of the care receiver over time on the bed.

Further, according to the present invention, the activity pattern calculating means includes a memory for storing at least two outputs of the exercise amount calculating means, the number of exercises calculating means, and the exercise speed calculating means for a predetermined time D1, and the contents stored in the memory. , And average value calculating means for calculating respective average values of the at least two outputs at the predetermined time D1, and a normal activity pattern for calculating the normal activity pattern in response to the output of the average value calculating means. Computing means, wherein the determining means responds to the outputs of the activity pattern computing means and the normal activity pattern computing means to determine whether the care recipient's activity pattern is the determined normal activity pattern. And

According to the present invention, the normal activity pattern of the cared person can be automatically obtained by calculation, so that the caregiver does not need to manually input the normal activity pattern to be registered in advance. Therefore, the burden of the caregiver on data input can be reduced.

Further, in the present invention, the memory preferably outputs the at least two outputs to a predetermined time D less than the time D1.
Each time two new stores are made, the oldest store contents for the time D2 are deleted and updated to new store contents.

According to the present invention, the stored contents of the memory are deleted every time a predetermined time elapses, and are updated with new stored contents. Normal activity patterns of the elderly.

Further, in the present invention, the data calculation means further includes a bed leaving detection means for detecting that the detected weight is not more than a predetermined value Wu in a state where the care receiver is not present on the bed; A number-of-movements calculating means for calculating the number of movements k of the center of gravity in the expected leaving-sections in response to the output of the leaving-bed prediction section detecting means; A number-of-times calculating means, and a probability calculating means for calculating a leaving-of-bed occurrence probability ρ (= f / k) for each moving direction of the center of gravity in response to outputs of the number-of-moving-times calculating means, the number-of-leaving-times calculating means, and the moving-direction detecting means. Determining, in response to the output of the moving direction detecting means and the probability calculating means, determining whether the detected moving direction is a predetermined direction with a high probability that the cared person will leave the bed. And it features.

According to the present invention, in the exit prediction section,
Since the probability of leaving the bed is calculated each time the center of gravity moves, the leaving probability of leaving the cared person that matches the current state of leaving the bed of the care-receiver can be maintained as compared with the case where the fixed probability of leaving the bed is used. . Therefore, it is possible to accurately predict the occurrence of leaving the bed, and it is possible to prevent an accident due to a fall that occurs when the cared person leaves the bed.

Further, according to the present invention, the probability calculation means responds to outputs from the number-of-movements calculation means and the number-of-beds-number calculation means,
A memory for sequentially storing combination data of the number of times k of movement of the center of gravity and the number of times of leaving the care-receiver f each time the movement of the center of gravity occurs in the leaving-bed prediction section, wherein the combination data is newly stored. Each time the data is stored, the oldest combination data is sequentially erased and updated to new storage contents.

According to the present invention, each time new combination data is stored, the oldest stored combination data is sequentially erased and updated to the new storage contents. It is possible to further maintain the probability of leaving the bed that matches the current state of leaving the bed of the care-receiver.

Further, according to the present invention, it is possible to provide a cause data input means for inputting cause data representing a cause of a state in which a cared person should be cared for, and to respond to an output of the judging means to be cared for the cared person. When the determination is made, it is determined that the care receiver should be cared in response to the output of the determination means and a memory for storing calculation data and cause data related to the activity pattern of the care receiver by the data calculation means. When the operation data stored in the memory and the new operation data have a predetermined relation, the relation operation means for calculating whether or not the relation has a predetermined relation, and in response to the output of the relation operation means, When there is a relationship with the data stored in the memory, a cause corresponding to the related data is read out from the memory and a signal indicating the cause is sent to the display means. Characterized in that it comprises a raw cause searching means.

According to the present invention, since the operation data and the cause data relating to the activity pattern of the cared person are stored, when it is determined that the cared person should be cared,
In other words, when an abnormality such as leaving the bed, end seat, and abnormal activity state occurs, the operation data at the time of occurrence of the abnormality is compared with the stored operation data, and if there is a relationship between the two, the data is related. The corresponding cause can be read from the memory. Therefore, when an abnormality occurs, the cause can be transmitted to the caregiver, and necessary treatment can be prepared at the abnormality occurrence stage. As a result, the burden of the caregiver on the caregiver can be reduced.

In the present invention, it is preferable that the calculation data is the time, place, and the amount of exercise, the number of exercises, and the exercise speed of the cared person before the time when the cared person should be cared. Features.

According to the present invention, since the operation data related to the activity pattern of the cared person is appropriately set, the activity pattern of the cared person can be properly grasped.

Further, according to the present invention, first control means is disposed near each bed, and the first control means comprises a center of gravity calculating means,
And a first transmission means for transmitting the output of the care detection means via a transmission line or a wireless means, wherein a second control means is arranged near the display means, The control means has a second transmission means connected to the first transmission means via a transmission line or a wireless means, and provides an output of the second transmission means to the display means.

According to the present invention, there is provided a first means having a center of gravity calculating means and a care detecting means in the vicinity of each bed for each cared person.
The control means is arranged, so that the outputs from the plurality of weight detecting elements provided on the bed can be easily wired and connected to the center-of-gravity calculating means. Since it is detected that the care receiver needs to be cared, it is possible to reduce the calculation load of the subsequent circuit. The output of the care detecting means is transmitted via the first transmission means via a transmission line or wireless means to a second control means provided near a display means such as a nurse station via the transmission line or wireless means. Then, the output of the second transmission means is displayed by the display means. The first control means includes not only the above-described center-of-gravity calculation means and care detection means, but also a first transmission means. Here, the transmission line may be an electric wire for transmitting an electric signal or an optical fiber for transmitting light. The wireless means generally means a means for transmitting data without using a transmission line, and includes radio waves, light (visible light, infrared light,
Ultraviolet) and sound.

In the present invention, the care detecting means detects a plurality of types of care-requiring states, and the first control means indicates occurrence of the care-requiring state when at least one of the care-requiring states occurs. The care state generation signal is transmitted by the first transmission means, and the second control means performs display by the display means in the individual display area by the care state generation signal.

According to the present invention, as described later with reference to FIG. 34, a plurality of types of states to be cared for detected by the care detecting means are displayed in the individual display area for each bed of the display means. ,indicate. In this way, it is possible to easily know what kind of state each cared person should be in by looking at the display means at, for example, a nurse station.

According to the present invention, the care detecting means detects a plurality of kinds of states to be cared for, and the second control means has means for selecting the kind of the state to be displayed on the display means. Is characterized by displaying only the type of care to be taken of the type selected by the selection means.

According to the present invention, as will be described later with reference to FIG. 33, in the individual display area of the display means corresponding to each caregiver's bed, a plurality of kinds of states to be cared for are selected. When a state to be cared for is selected by the means 83 and 84 and the state to be cared for occurs, this is displayed by the display means. This allows the caregiver to know in advance the state in which the care receiver should care, and facilitates care preparation.

In another embodiment of the present invention, the selecting means 84 for selecting the type of the state to be displayed as shown in FIG.
Not being provided, all types of detected caregiving states may be displayed in the individual display area for each bed.

In still another embodiment of the present invention, when at least one of the plurality of states to be cared for each bed has a state to be cared for, as shown in FIG. You may comprise so that it may display on an individual display area.

Further, the present invention is characterized in that a bed for the care receiver is provided with a nurse call switch, and a state to be cared for by the care receiver can be output to a terminal of the nurse call switch.

According to the present invention, the state to be cared for by the care receiver can be output to the terminal of the nurse call switch, so that the existing transmission line can be used, and the hospital room and the display means of the nurse station can be displayed. There is no need to lay a dedicated cable for connection, and the installation cost can be reduced. Further, even when the care receiver cannot press the nurse call switch by his / her own will, it can notify the nurse station at the timing when the state to be cared for is detected.

[0050]

FIG. 1 is a block diagram showing the entire configuration of a care support device 1 according to an embodiment of the present invention.
In each room 2 such as a welfare facility or a medical facility, a plurality of (for example, four) cared persons are accommodated, and a cared person monitoring device 3 is provided for each cared person. Each of these care receiver monitoring devices 3 is connected to a transmission means 6 of a nurse station 5 which is a central control room via an individual transmission line 4.
The processing means 7 is connected to the transmission means 6. Processing means 7
Accordingly, the display means 8 displays the care-required state of each care receiver from the care receiver monitoring device 3. Also, instead of the transmission line 4, a wireless means, for example, a wireless LA
N may be provided. The wireless means may be any of radio waves, light (visible light, infrared light, ultraviolet light), sound, and the like as described above.

FIG. 2 is a diagram showing a simplified configuration of the care receiver monitoring device 3. The bed 9 for each cared person has a bed body 11 having a horizontal mounting surface on which the cared person is mounted.
And three or more (for example, four) legs 12 supporting the bed body 11.

FIG. 3 is a simplified perspective view of the care receiver monitoring device 3. At the lower part of the leg 12 of the bed 9, weight detection elements 13a to 13
d (generally indicated by reference numeral 13) are provided. As a result, the weight of the cared person on the bed 9 and the position of the center of gravity of the cared person can be calculated and obtained as described later. A medical console 14 is provided, for example, on a wall on the head side of the bed 9. The first console 15 is housed in the medical console 14. The output of each weight detecting element 13 is provided to the second control means 16 via the line 4. The first control means 15 is connected to the second control means 16 of the nurse station 5 via the transmission line 4. The second control means 16 includes the transmission means 6 and the processing means 7 described above.

FIG. 4 is a block diagram showing the overall electrical configuration of the care support device 1. As shown in FIG. The first control means 15 controls the first
It includes a processing unit 18 and a first transmission unit 19. The first processing unit 18 is realized by, for example, a microcomputer. The first processing means 18 includes the weight detecting element 1
3 and the outputs from the function selecting means 20 provided in the medical console 14 and the like, the zero point adjusting means 21 for adjustment, and the like. Further, a nurse call switch 22 which is a switch operated by a care receiver or the like is provided. First processing means 1
8 and the output of the nurse call switch 22 are the first
From the transmission means 19, it is provided to the transmission means 6 of the second control means 16 via the transmission line 4. The output of the transmission means 6 is given to a processing means 7 realized by a microcomputer or the like. The transmission means 6 and the processing means 7
Corresponding to the above-described first processing means 18 and first transmission means 19, they can be called second transmission means 6 and second processing means 7, respectively.

The second transmission means 6 and the second processing means 7
Thereby, the second control means 16 is configured. The second processing means 7 includes the display means 8 as described above, and further includes other display means 23. Further, the handset 24 including a speaker and a microphone may be configured to be able to communicate with each care receiver. The second processing means 7 is also provided with a memory 25, and further connected to a printer 26 for printing the display contents of the display means 8 on recording paper.

FIG. 5 is an enlarged perspective view of the bed 9. A caster 28 having wheels for facilitating movement of the bed 9 is attached to a lower portion of the leg 12.

FIG. 6 is a plan view of the weight detecting element 13, and FIG. 7 is a longitudinal sectional view of the weight detecting element 13. The weight detecting element 13 includes a load cell 29 and the load cell 29.
And a storage body 30 for storing the A recessed receiving portion 31 is formed in an upper portion of the storage body 30. The casters 28, which are the lower portions of the legs 12 of the bed 9, are stably mounted on the receiving portions 31. In this way, the weight of each leg 12 is converted into an electric signal by the weight detecting element 13, and the electric signal is transmitted through the joint box 17 and the line 10 for connection.
It is provided to the processing means 18.

The first processing means 18 is a first processing means of the present invention.
The functions A1 to A8 in Table 1 are achieved corresponding to the first to fifth embodiments. The first embodiment can be called an intelligent type, and the second embodiment can be called a visual notification type, and each type achieves all the functions A1 to A8. can do. The third and fourth embodiments can be called individual report types. In particular, the third embodiment includes a report selection function by the function selection unit 20. The fifth embodiment can be called a simple report type.

[0058]

[Table 1]

The function A1 is a function of converting the amount of electrical change of the weight detecting element 13 into weight data and a function of calculating the position of the center of gravity. Function A2 is a bed leaving detection function. Function A
3 is an activity monitoring function. Function A4 is an end seat monitoring function. Function A5 is a turnover monitoring function. The function A6 is a function of selecting the functions A2, A3, A4, and A5 by the function selection unit 20. Function A7
Is a function of transmitting an on / off signal for notifying that a state in which the care receiver should be cared for has been generated by the above functions A2, A3, A4, and A5. The function A8 is a function in which the first processing means 18 communicates with the second processing means 7, and is a function of constantly transmitting the position of the center of gravity from the first processing means 18 to the second processing means 7. In another embodiment of the present invention, the functions A2, A3, A4, and A5 described above may be realized in the second processing unit 7.

[0060]

[Table 2]

FIG. 8 shows the first control means 15 included in the first control means 15.
5 is a flowchart for explaining the operation of the processing means 18. The first processing means 18 performs step a shown in FIG.
1 to a14 are executed, and by executing these steps a1 to a14, the functions A1 to A8 described above are achieved. In particular, as shown in Table 2, the functions A2 to A5 correspond to the steps a3, a4; a6 to a8; a9, a10;
To a13.

The process proceeds from step a1 to step a2 in FIG. 8, and the weight W is measured. W = W1 + W2 + W3 + W4 (1) W1 = W1a-W10 (2) W2 = W1b-W20 (3) W3 = W1c-W30 (4) W4 = W1d-W40 (4)

W1, W2, W3, and W4 represent the weights of the care receiver alone measured by the four weight detection elements 13a to 13d, respectively. W1a-W1d
Represents the weight measured by each of the four weight detection elements 13a to 13d, and W10 to W40 are respectively measured by the weight detection elements 13a to 13d in a state where the care receiver does not ride on the bed 9. Weight. Therefore, as described above, the weights W1 to W4 are the weights of only the cared person obtained from the respective weight detecting elements 13a to 13d based on the weight of the cared person when the cared person gets on the bed body 11.

At step a3, it is checked whether or not the care receiver has left the bed. When Expression 6 is satisfied, it is determined in step a4 that the care receiver has separated from the bed 9 and has left the bed. W ≤ Wu (6)

Here, Wu is a value set for each cared person, and is the minimum value of the weight regarded as leaving the bed.

FIG. 9 is a diagram for explaining the leaving-bed detection function A2. The minimum weight value Wu in Equation 6 is set to, for example, 0.4 kg. Weight detecting elements 13a to 13d
Weight W1 based only on the cared person's weight obtained by
ＷW4 is, for example, 0.0 kg, 0.01 kg, 0.0
9 and 0.1 kg, and therefore, when the total weight W is 0.2 kg and the above-described Expression 6 is satisfied, the care receiver indicated by reference numeral 33 in FIG. 9 is determined in step a4.

In step a5, when no bed leaving has occurred, the current center of gravity position (Gx, Gy) of the cared person is calculated.

FIG. 10 is a simplified plan view of the bed 9. Assuming that the longitudinal direction of the bed 9 is the X axis, the direction perpendicular to the longitudinal direction is the Y axis, and the origin is 0, the position of the center of gravity (G
(x, Gy) is the position of the bed body 11 in a horizontal two-dimensional plane. When the length in the longitudinal direction of the bed body 11 is Lx and the length in the width direction perpendicular to the longitudinal direction is Ly, the coordinate position Gx in the X direction of the center of gravity G and the coordinate position Gy in the Y axis are expressed by the following equation (7). And Equation 8:

[0069]

(Equation 1)

Thus, the position (Gx, Gy) of the center of gravity G is calculated, and the above-described function A1 is achieved.

FIG. 11 is a diagram for explaining an activity state of the care receiver 33. In step a6, the activity state of the care receiver is calculated. The active state indicates how much the care receiver is active on the bed 9, and the total value AL of the moving distance D of the center of gravity G for the past n seconds, which is a fixed time.
Is calculated. This sum AL may be referred to as an activity level. The output of each of the weight detection elements 13a to 13d is always, for example, 0.
Sampling and detection are performed every 6 seconds, and the weight G is obtained every 0.6 seconds. The position of the center of gravity Gt at time t is (Gxt, Gy
t), and the position of the center of gravity Gt + 1 at the next time (t + 1) after the sampling time interval of 0.6 seconds is (Gxt + 1, Gyt +
In the case of 1), the distance D between the center of gravity Gt and Gt + 1 is expressed by Expression 9 according to Pythagorean theorem. D = {(Gxt + 1−Gxt) 2+ (Gyt + 1−Gyt) 2} 1/2 (9)

The center-of-gravity moving distance D can also be obtained by the following method. P (x) and P (y) are expressed by the following equation 1.
When defined as 0 and Equation 11, respectively, Equations 7 and 8 are expressed as Equations 12 and 13, respectively. P (x) = W3 + W4 (10) P (y) = W2 + W3 (11)

[0073]

(Equation 2)

By substituting equations (12) and (13) into equation (9),
The center-of-gravity movement distance D can be expressed without using Gx and Gy as in Expression 14.

[0075]

(Equation 3)

The total value AL is the total value of the moving distance D of the center of gravity G for n seconds, for example, 3 seconds. It is assumed that s is a sampling period, for example, 0.6 seconds, and n is a multiple of an integer m of s (m = n / s).

Assuming that the AL until time t is AL (t), AL (t) = D (t) + D (ts) + D (t−2s) +... + D (t−ms) (15) Here, D is the moving distance of the center of gravity G for s seconds.

Therefore, the total value AL at time t + s is changed to AL
If (t + s) is obtained, Equation 16 is obtained. AL (t + s) = AL (t) + D (t + s) -D (t-ms) (16) Here, D (t + s) is the moving distance of the center of gravity from time t to t + s.

D (ts) is the moving distance of the center of gravity from time t to ts, and D (t-2s) is the time ts
Is the moving distance of the center of gravity G from to t-2s.

Therefore, the total value AL is the sum of the moving distance D of the center of gravity over n seconds, and the activity of the cared person 33 can be monitored by the amount of change in the center of gravity.

At step a7, the activity status of the cared person is checked. It is determined whether or not the total value AL is out of the range of a predetermined value that is a normal activity state of the cared person. The range of the predetermined value is equal to or less than the predetermined value AL2 and the other predetermined value AL.
The range is 1 or more, as shown in Expression 17. AL1 ≤ AL ≤ AL2 ... (17)

Here, AL2 is the total value AL of the amount of movement of the center of gravity.
Is the maximum value for determining that an excessive activity state has occurred. AL1 is the minimum value of the total value AL of the amount of movement of the center of gravity, and is a value for judging that the activity reduction state has occurred. When Expression 17 is not satisfied, that is, when the total value AL exceeds a predetermined value AL2 (AL> AL2), it indicates that the excited state of the cared person is occurring, and the total value AL is another predetermined value AL1. Less than (AL <
AL1) For example, it is determined that the care receiver is in an abnormal state in which he / she has not turned over at all and has a low degree of activity. Thus, when the above equation 17 is not satisfied, it is determined in step a8 that the activity state is abnormal.

At step a9, the end seat check of the care receiver is performed. When it is determined that the position (Gx, Gy) of the center of gravity G is sitting on the edge of the bed, which is the periphery of the bed 9, in step a10, it is determined that an end seat has occurred. X1 <Gx <X2 (18) Y1 <Gy <Y2 (19)

The coordinates X on the X axis in Expressions 18 and 19
1, X2 and the coordinates Y1 and Y2 of the Y axis are the same as those in FIG.
Are coordinate positions indicating the range of end seat generation as shown in FIG.

FIG. 12 is a diagram for explaining end seat monitoring. When the center of gravity G is in the end seat occurrence range 34, that is, when Expressions 18 and 19 are not satisfied, the end seat occurrence is detected. In the plan view of the bed 9 in FIG.
Is indicated by a black circle, and the recent center of gravity position is indicated by a black circle 35 having a large diameter. For example, the diameter of the black circle at the center of gravity position 36 is displayed smaller as the position of the past center of gravity becomes every n seconds. The caregiver looking at the display means 8 by this means
The moving state of the center of gravity G of the patient 33 can be easily known as time passes.

As the position of the center of gravity is indicated by reference numeral 35,
It is within the end seat generation range 34, that is, the above-mentioned equation 18, 1
When 9 is simultaneously established, it can be determined that the patient 33 is sitting at the edge of the bed, which is the periphery of the bed 9, and care is required. The time when the position of the center of gravity falls within the end seat occurrence range 34 is detected by the clock means, and when the detected time is midnight, the care receiver is in the awake state regardless of whether he is sleeping. The condition is an abnormal condition, and the cared person needs care.

At step a11, the turnover of the care receiver is calculated. A total value GM of a moving distance D which is a moving amount of the center of gravity G for each M hours (for example, 2 hours) is calculated. In step a12, it is determined whether or not a turnover support request has occurred based on Expression (20). GM <G0 (20)

When Expression 20 is satisfied, the position of the center of gravity hardly moves for a predetermined time M, and it is determined that a turnover support request has occurred at this time. G0 in Expression 20 is the total value of the moving distance D of the predetermined center of gravity G at M time for the rollover determination. When the total value GM of the moving distances is less than the predetermined moving distance G0, it is determined that turning over has not been performed, and a signal indicating that turning support is necessary is derived in step a13 as described above. Are displayed by the display means 8.

FIG. 13 is a diagram showing a state in which the care receiver 33 is turning over the bed 9. When the care receiver 33 is regularly turning over on the bed 9 and thereby moving the center of gravity, it is determined that the turnover is being performed, and the center of gravity G is set as described above. If the user does not move for a certain period of time M, it is determined that a turnover is necessary. In this way, the caregiver can perform the care suited to the condition of the cared person 33 without being bound by the position change schedule of the cared person 33, and when the cared person 33 is turning over on his own This eliminates the need for the caregiver to cause the care receiver to turn over.

At step a14 in FIG. 8, the position of the center of gravity (Gx, Gy) of the cared person and steps a4, a8,
Each of the states detected at a10 and a13 is
The data is transmitted from the first transmission unit 19. The above-mentioned states are occurrence of getting out of bed, abnormal activity state, occurrence of end seat, and occurrence of turnover support request. The information transmitted in step a14 can be selected by the function selecting means 20, and the information not selected is not transmitted.

In step a11, the counted total value GM is reset to zero at the start of the turnover calculation and every time M passes. In step a12, after the start of the turnover calculation, it is checked at every M hours whether or not Expression 20 is satisfied.

FIG. 14 is a diagram showing the structure of a signal 37 transmitted from the first processing means 18 to the transmission line 4 via the first transmission means 19. The signal 37 output from the first processing means 18 includes an identification signal 38 for identifying each of the plurality of beds 9, a signal 39 indicating occurrence of leaving the bed detected in step a4 in FIG. 8, and an abnormal activity state in step a8. Signal 40, a signal 41 indicating occurrence of an end seat detected in step a10, and a signal 42 indicating occurrence of a turning support request detected in step a13, and further a signal of a coordinate position (Gx, Gy) of the center of gravity G. 43
including.

The second processing means 7 included in the second control means 16 includes functions B1 to B1 for each of the first to fifth embodiments.
0 is achieved as shown in Table 3.

[0094]

[Table 3]

In the first embodiment, all of the functions B1 to B10 are achieved. In the second embodiment, functions B1 to B
4 is achieved. In the third embodiment, functions B1 to B3
Is achieved. In the fourth and fifth embodiments, functions B1 and B2 are achieved.

The first to fifth embodiments in Table 3 correspond to the first to fifth embodiments described in Table 1, respectively. The function B1 in Table 3 is a function for receiving the signal 37 from the first control unit 15. Function B2 is the first
This is a function of displaying each state according to the signal 37 of the control unit 15 on the display unit 8. These states are the occurrence of leaving the bed, abnormal activity state, occurrence of the end seat, and occurrence of the turning support request. The function B3 is a report selection function, that is, a function of displaying only the selected state among the states represented by the above-described function B2 transmitted from the first control unit 15. In order to make this display selection, the second processing means 7 is provided with a message selection means 84 (see also FIG. 33). The function B4 is a function for displaying the current position of the center of gravity on the bed 9 of the care receiver. The function B5 is a function of storing and storing the position data of the center of gravity of the care receiver on the bed 9 in the memory 25, and displaying the stored position data on the display unit 8. The function B6 stores and stores in the memory 25 the above-mentioned states of each care receiver, that is, the occurrence histories of the occurrence of leaving the bed, the abnormality of the activity state, the occurrence of an end seat, and the occurrence of a turn-over support request. This is the function to display. Function B7 is a function of automatically extracting the activity pattern of the care receiver. The function B8 registers a normal activity pattern of the care receiver in advance, and when an activity pattern different from the normal activity state occurs, the display unit 8
It is a function that displays the fact and generates an alarm. Function B
9 is the position of the center of gravity G on the normal bed 9 of the care receiver (G
(x, Gy) is stored and registered in the memory 25 in advance, and when the position is different from the position of the normal center of gravity G, the fact is displayed by the display means 8 and an alarm is generated. Function B10
Extracts the characteristics of the leaving-of-bed pattern based on the position information of the center of gravity G of the care receiver, stores and stores the characteristics of the leaving-of-bed pattern in the memory 25, and stores the position information of the center of gravity G and the leaving-of-bed pattern up to now. It is a function to collate and predict leaving bed.

FIG. 15 is a flow chart for explaining the operation of the second processing means 7 included in the second control means 16. The process moves from step b1 to step b2 to perform data communication. This data communication is reception of information indicating the coordinates (Gx, Gy) of the center of gravity G of the cared person and the activity state. The active states include leaving the bed, abnormalities in the active state, occurrence of end seats, and occurrence of a turn-over support request. In another embodiment of the present invention, the second processing means 7 determines the coordinate position (G
(x, Gy) may be received from the first processing means 18 to perform the operation processing of the active state.

In step b3, the second processing means 7 responds to the signal indicating the activity state in step b2 described above, and when it is detected that the user has left the bed, has an abnormal activity state, has generated an end-seat, or has generated a turnover support request, has determined in step b4. , The occurrence status is displayed for each bed 9.

In step b5, the activity of the cared person is monitored in the first embodiment. The monitoring of the activity state includes monitoring of the activity pattern corresponding to the functions B7 and B8, monitoring of the position of the center of gravity G on the bed 9 corresponding to the function B9, and monitoring of the leaving bed prediction corresponding to the function B10.

FIG. 16 is a diagram showing each screen displayed by the display means 8. The entire display screen 48 displayed by the display means 8 is shown in FIG. The bed-specific display screen 49 is shown in FIG. Report display selection screen 50
Is shown in FIG. Patient-specific report history display screen 51
Are shown in FIGS. 20 and 21. The patient-specific movement history display screen 52 is shown in FIG. The patient-specific database screen 53 is shown in FIG. The patient represents the care receiver.

FIG. 17 is a view showing the entire display screen displayed by the display means 8. In FIG. On the entire display screen 48, a display area 5 for each room 2 such as a welfare facility or a hospital is provided.
5 are formed. In the display area 55 for each room, an individual display area 56 corresponding to each bed is provided. In the individual display area 56 for each bed, a state to be cared for corresponding to the bed is displayed. In the embodiment shown in FIG.
The individual display area 56 corresponding to one bed 9 can display a plurality of (four in this embodiment) types of care-requiring states. That is, the condition to be cared for is, as described above, the leaving bed 57, the activity abnormality 58, and the end seat 59.
And a turnover support request 60. Corresponding to each of these states, the individual area 56 has a corresponding state display area 6
1, 62, 63 and 64 are set respectively.

FIG. 18 is a diagram showing a display screen 49 for each bed for each caregiver. The current position of the center of gravity G of the caregiver, the activity level AL, the measured weights W1 to W4 based on the weight of the care receiver detected by the weight detection elements 13a to 13d for each leg 12 of the bed 9, and the state to be cared occur. For example, in this embodiment, the occurrence of the end seat and the time of occurrence are displayed. Center of gravity G of cared person
Is calculated by a predetermined time, for example, every n seconds as described above. The position of each center of gravity G obtained in this way is the black circle 67 having a large diameter indicating the latest coordinate position.
, And a plurality of predetermined past positions are indicated by black circles 68 having a small diameter, and thus the diameter of the black circle is reduced as the past progresses. Thus, the movement progress of the center of gravity with the passage of time can be known.

FIG. 19 is a diagram showing a report display selection screen 50. On the screen of the display unit 8, for example, a transparent touch panel constituting the display selection unit 46 is arranged, and a selection input operation can be performed. In this way, it is possible to select whether the type of status to be reported, such as leaving the bed, abnormal activity, end sitting, and turning-over support request, is selected and displayed by the display means 8.

FIG. 20 is a diagram showing a patient-specific report history display screen 51. As shown in FIG. For each bed of the cared person, the occurrence state of the condition to be cared for is displayed, for example, on a monthly basis, and the total value thereof is also calculated and displayed.

FIG. 21 is a diagram showing another form of the patient-specific report history display screen 51. As shown in FIG. The type of the care-requiring state of each bed of the cared person is counted and displayed, for example, on a monthly basis. The states to be cared for are displayed in different colors, making it easy for the caregiver to visually discriminate.

FIG. 22 is a diagram showing a movement history display screen 52 for each patient. The state of movement of the center of gravity of each bed of the cared person is displayed in the plane of the bed 9 as indicated by reference numeral 66.

FIG. 23 is a view showing a patient-specific database screen 53 displayed by the display means 8. For each bed 9 of the cared person, the type of the care-required state and the number of occurrences are displayed, for example, every month, so that the report history information 91 is obtained, the activity pattern 72, the position of the center of gravity G on the bed 9 Analysis results such as 73 and the bed leaving pattern 74 are displayed.

By realizing such a report history management function shown in FIGS. 20 to 23 by the second processing means 7, each state to be cared for, for example, occurrence of leaving bed, abnormal activity state, occurrence of end seat, turn over. The status of occurrence of the support request is stored and stored in the memory 25, and the input means 8 of the caregiver is stored.
The history data stored in the memory 25 can be displayed on the display unit 8 by the operation of the second processing unit 7 in accordance with the instruction by the printer 9, and can be printed on recording paper by the printer 26. Therefore, it is possible to know the occurrence status of the notification of each state to be cared for each cared person, and it is easy to grasp the characteristics of caring for each cared person. Therefore, an environment in which care suitable for each care receiver can be easily realized is provided.

FIG. 24 is a flowchart more specifically showing the activity monitoring operation of step b5 in FIG. 15 by the second processing means 7. In monitoring the activity of the cared person, the functions B7 and B8 of the activity pattern described with reference to Table 3 are executed in steps c1 to c2 to c4. In steps c5 to c7, a function B9 related to the position of the center of gravity G on the bed 9 of the care receiver is executed. In steps c8 to c10, a function B10 relating to the leaving-bed prediction according to the leaving-bed pattern is executed. By monitoring these activities of the cared person, care can be performed at an appropriate timing according to the situation of the cared person, and the burden of care work on the cared person can be reduced. .

In order to execute the functions B7 and B8 relating to the activity pattern, in step c2, the current activity state of the cared person, that is, the activity pattern, and the normal activity of the cared person who has been registered in advance. Compare with pattern. From the movement history data of the center of gravity G, the activity pattern of the cared person can be analyzed and registered in advance. The normal activity pattern registered in advance may be input by the caregiver using the input unit 89 (see FIG. 4). Further, a normal activity pattern registered in advance may be automatically set as described later with reference to FIGS.

At step c3, it is determined whether or not the current activity pattern is different from a normal activity pattern registered in advance. When it is determined in step c3 that the current activity pattern of the care receiver is different from the normal activity pattern registered in advance, the next step c4
Then, it is determined that some abnormality has occurred in the care receiver, and an alarm is generated by the display unit 8. Some abnormalities include, for example, rubbing of the care receiver and excretion on the bed 9. Since the occurrence of such an abnormal state can be grasped at an early stage, the caregiver can perform appropriate care in a timely manner.

FIG. 25 is a flowchart for explaining the operation of extracting and calculating the feature pattern of the activity of the cared person by the second processing means 7 in step c2 in FIG. 24 of the cared person. At step d2, the clocking operation of the timer provided in the second processing means 7 is started, and a predetermined time W1 is measured. As shown in Table 4, the amount of movement in step d3, the number of exercises in step d4, and the exercise speed in step d5 are obtained from the movement of the center of gravity G of the cared person at each predetermined time W1.

[0113]

[Table 4]

The amount of exercise is the sum of the distance D of the position of the center of gravity of the cared person on the bed 9 within the predetermined time W1. The number of times of exercise refers to the number of times from when the center of gravity G starts moving on the bed to when the center of gravity G stops moving as one time. Stopping the movement of the center of gravity means that the movement of the center of gravity is
For example, there is no state for 0.5 seconds. The movement speed is the movement speed at which the center of gravity G moves from the start of movement to the stop on the bed 9 and is obtained by dividing the movement distance of the center of gravity G by the movement time. The moving distance of the center of gravity G is the sum of the moving distances of the center of gravity for each time from the start of the movement of the center of gravity to the stop of the movement of the center of gravity, and the moving time is the total of the moving time required for each time. Thus, every time W1,
Calculation and detection of the amount of movement, the number of times of movement, and the movement speed are performed, and in the next steps d7 to d9, the analysis results shown in Table 4 are obtained.

In step d7, the momentum is level-discriminated at a plurality of (for example, three) predetermined discrimination levels, and an analysis result that the momentum is high, normal, and low can be obtained. In step d8, the number of exercises is level-discriminated at a plurality of (for example, three) predetermined discrimination levels, and classified as frequent, normal, and less active. Step d
At 9, the speed of motion is level discriminated at a plurality of (eg, three) predetermined discrimination levels and classified as fast moving, normally moving, and slowly moving.

In step d10, step d7
Based on the results of the analysis of the amount of exercise, the number of exercises, and the exercise speed obtained in d9 to d9, for example,
7 is calculated and obtained. The levels of the amount of exercise, the number of times of exercise, and the speed of exercise in Table 5 are the same as the levels described above in relation to Table 4 and steps d7 to d9. Thus, the predetermined time W1 is, for example, 1
The hourly activity state is analyzed, and an hourly activity pattern from midnight to 24:00 is calculated and obtained for each care receiver. In step d11, the current activity pattern calculated by the care receiver is compared with a normal activity pattern registered in advance, and when it is determined in step d12 that the comparison result is different from the comparison result,
The cared person is determined to need care. When care is required, in step d13, the display means 8 indicates that the care receiver should be cared. Thus, in step d14, a series of operations ends.

[0117]

[Table 5]

In order to achieve the above-mentioned function B9 related to the position of the center of gravity G on the bed 9 of the cared person, the position of the center of gravity G on the bed 9 is registered in advance in step c5 of FIG. It is compared whether the center of gravity G is different from the normal position. As a result of this comparison, when it is determined in step c6 that the current position of the center of gravity G is different from the normal position,
At step c7, an alarm indicating that the position is abnormal is generated, and the display means 8 indicates that the care receiver should be cared for.

FIG. 26 shows the center of gravity G on the bed 9 of the care receiver.
FIG. 9 is a simplified plan view of a bed body 11 of a bed 9 for achieving a function B9 relating to the position of the bed 9; The bed body 11 is divided into a plurality (for example, 16) to obtain each section 71. Each section 71 has, for example, the same rectangular shape.

FIG. 27 shows the center of gravity G on the bed 9 of the care receiver.
9 is a flowchart for explaining the operation of the processing circuit 7 that achieves the function B9 related to the position of FIG. Step e1
From step e2, the clocking operation of the timer provided in the second processing means 7 is started, and in step e3, the center of gravity G included in the signal 37 from the first processing means 18
Of the center of gravity is detected from the signal representing the position of the center of gravity. In step e4, it is determined whether or not a predetermined time W2 has elapsed.
Is detected. The time W2 may be, for example, the same as the above-described time W1, and may be, for example, one hour.

Thus, in step e5, the moving area of the center of gravity G, that is, the section 71 of the bed 9 shown in FIG.
Is detected based on the position of the center of gravity. In step e6, it is determined whether or not the thus obtained section 71, which is the moving area of the care receiver at the predetermined time W2, is different from the normal position registered in advance. The normal position registered in advance is a section of the section 71 of the bed 9 in FIG. 26 where the care receiver is normally in a normal state. This section is a section to which the position of the center of gravity within a predetermined time in the normal state of the care receiver belongs, and grasps the normal activity range of the care receiver.

In step e7, it is determined that the section 71, which is the movement area of the position of the center of gravity G on the bed 9 within the predetermined time W2 of the care receiver, is the predetermined section 71 to care for the care receiver. Then, it is determined that it is necessary to care for the cared person, and this is displayed by the display means 8 in step e8. In this way, if the care receiver does not have the care receiver in the section 71 where the care receiver should normally be, there is a possibility that an abnormality has occurred in the care receiver, and this abnormality can be detected and notified to the care giver. This makes it possible to protect the cared person at an early stage. The analysis of the position of the center of gravity G on the bed may be performed, for example, every hour which is a predetermined time W2, and the section 71 to which the hourly position from midnight to 24:00 belongs may be obtained.

Function B10 of leaving bed prediction by leaving bed pattern
In step c8 of FIG. 24, a bed leaving prediction based on the probability that the cared person will leave the bed 9 is performed. If it is determined in step c9 that the possibility of leaving the bed is high, an alarm indicating that there is a possibility of leaving the bed is generated in step c10 and displayed by the display means 8.

FIG. 28 shows the above-mentioned function B relating to the leaving-bed prediction.
FIG. 25 is a simplified plan view of the bed 9 for explaining steps c8 to c10 of FIG. By analyzing the position data of the center of gravity G when the caregiver leaves the bed 9 and extracting the characteristics of the leaving pattern, it is possible to predict the leaving of the care receiver before leaving the care-receiver. Thus, the leaving-bed prediction can be transmitted to the caregiver by displaying it on the display means 8. Therefore, the caregiver can care for the care receiver on the bed 9 before the care receiver leaves the bed. This makes it possible to prevent an accident such as a fall of the cared person from the bed 9 that occurs when the cared person leaves the bed, and to prevent the cared person from falling or wandering after leaving the bed. Can be prevented.

The bed body 1 of the bed 9 for predicting leaving the bed
1 is a normal position 73 at the center of the bed main body 11, an outer peripheral portion of the normal position 73, a predicted leaving section 74 which is a peripheral portion of the bed 9, and a bed which is an outer peripheral portion of the predicted leaving section 74. 9 is divided into a total of three portions 73, 74, and 75 with an end seat detection section 75 which is a peripheral portion of the section 9. FIG.
May be the same as the end seat generation range 34 described above with reference to FIG. 12, or may be different.

FIG. 29 shows the function B relating to the prediction of leaving the bed.
25 is a flowchart for explaining a specific operation of the second processing means 7 for executing steps c8 to c10 of FIG. The process moves from step f1 to step f2, and the signal 43 representing the position of the center of gravity G of the cared person included in the signal 37 from the first processing means 18 is used to predict the center of gravity G of the cared person as shown in FIG. It is determined whether it is in the section 74. When the center of gravity G exists in the leaving-bed prediction section 74, in step f3, the moving direction of the center of gravity G of the care receiver is detected. In step f4, a predetermined probability that the cared person will leave the bed is calculated and obtained according to the detected moving direction.

FIG. 30 is a simplified plan view of the bed 9 for explaining the operation for detecting the moving direction of the center of gravity in the bed leaving prediction section 74 of the care receiver on the bed 9. The normal position 73 is a section where the care receiver 76 normally exists. Prediction section 7 which is the outer periphery of the normal position 73
4 is divided into a plurality of small sections 77.

FIG. 31 is a diagram for explaining a method of calculating the moving direction of the center of gravity, and FIG. 32 is a diagram illustrating a small section 77 shown in FIG.
FIG. 6 is a diagram showing an area for dividing a center of gravity moving direction in FIG.
The moving direction of the center of gravity is defined by an angle θ between the straight line connecting the position G1 before the movement of the center of gravity and the position G2 after the movement of the center of gravity and the X axis. The moving direction θ of the center of gravity indicates the coordinates of G1 and G2 as (X11, Y11), (X12, Y1).
Assuming 2), it is obtained by equation 21. θ = tan-1 (Y12−Y11) / (X12−X11) (21)

Each of the small sections 77 is divided into a plurality (for example, 8 in this embodiment) of areas I to VIII (hereinafter, referred to as direction sectioning areas) for dividing the direction of movement of the center of gravity in the circumferential direction. In the present embodiment, as shown in FIG. 31, the direction segmented region is divided into eight segments in the angle range of 0 to 360 degrees every 45 degrees as shown in FIG. The direction division area may be divided into eight sections.

After detecting the moving direction θ of the center of gravity G of the cared person in step f3 in FIG. 29, in step f4, the moving section areas I to VIII to which the center of gravity moving direction θ belongs are included.
Is calculated, and the leaving probability ρ is detected in accordance with Table 6. The leaving-of-bed occurrence probability ρ is set by preparing Table 6 for each of the plurality of small sections 77 existing in the leaving-bed prediction section 74.

In Table 6, the leaving probability ρ is set in advance for each of the cared persons with respect to the direction divided areas I to VIII. The leaving probability ρ is a probability that the center of gravity moves from a certain direction and then leaves the bed without moving to another place on the bed 9. The number of times that the center of gravity has moved from a certain direction to a certain small section 77 is k, and the center of gravity moves to a certain small section 77 from a certain direction.
Assuming that the number of times the bed has left the bed without moving the center of gravity to the upper place is f, it can be obtained by Expression 22. ρ = f / k (22)

[0132]

[Table 6]

At step f5, it is determined whether or not the obtained leaving probability ρ is equal to or larger than a predetermined value ρ0 set by the caregiver (ρ ≧ ρ0). When the leaving-of-bed occurrence probability ρ is equal to or higher than the predetermined value ρ0 and high, it is determined that the direction of movement of the center of gravity is a predetermined direction having a high leaving-of-bed occurrence probability. At step f6, the bed 9 of the care receiver
Indicating that there is a possibility that the bed may be left from the display means 8
And display an alarm. When the center of gravity moves to a certain small section 77 from a certain moving direction θ in this way, a probability ρ of leaving the bed from the small section 77 is obtained. Is displayed by the display means 8. For example, when the caregiver sets the value of the leaving-occurrence-occurrence probability ρ0 as ρ0 = 0.65, the centroid moving direction θ (0 ° to 135) belonging to the direction segmented areas I to III in Table 6 is assigned to a certain small section 77. Only when the center of gravity moves from (degree), the display means 8 notifies the warning of the predicted occurrence of leaving the bed.

FIG. 33 is a view showing a display screen 78 of the display means 8 according to the third embodiment of the present invention shown in Table 1 described above. An individual display area 56 is set for each of the plurality of beds. In this individual display area 56, the occurrence of leaving the bed,
The display areas 79 to 82 for the occurrence of the end seat, the occurrence of the activity abnormality, and the occurrence of the turnover support request are set. Further, in this embodiment, an input means such as a transparent touch panel is provided on the display screen 78 of the display means 8, and the bed selection switch 8
The bed 9 is selected by the user 3, and one or more of the four states of the selected bed 9 to be cared for can be selected by the notification selection switch 84. Thus, when the selected state to be cared for in the selected bed 9 is generated, this is displayed in the individual display area 56 for each bed 9 on the display screen 78 of the display means 8. Therefore, the caregiver can know in advance the state of the cared person to be cared for, and the care preparation becomes easy.

In another embodiment of the present invention, instead of providing the message selection switch 84 in association with the second control means 16, the function selection means 20 of the first control means 15 is provided for each bed 9. It may be possible to select each state of the cared person to be notified.

FIG. 34 is a diagram showing a display screen 78 of the display means 8 according to the fourth embodiment of the present invention described above with reference to Table 1. In this embodiment, the bed selection switch 83 and the message selection switch 84 in FIG. 33 are omitted, and four states are displayed in the display areas 79 to 82 in the individual display area 56 for each bed 9.

FIG. 35 is a diagram showing a display screen 78 of the display means 8 according to the fifth embodiment of the present invention described above with reference to Table 1. In each individual display area 56 for each bed 9,
When any one of the four states to be cared for occurs, a display is made in the individual area 56 corresponding to the bed, as indicated by reference numeral 86. Reference 86 is
In response to the bed, one of the above four states to be cared for occurs, so that the display form is changed, for example, the color, brightness, etc. are changed, or the display is made by characters. Is also good.

According to the present invention, the first transmission means 19 of the first control means 15 includes, for example, one or two transmission lines 4.
Is connected to the second transmission means 6 of the second control means 16, and a nurse call switch 22 is provided for each bed. The present invention can be implemented in an existing building where these nurse call switches 22 are connected to the nurse station 5 via the transmission line 4 without performing wiring work in a large-scale building. There is an advantage that can be.

As described above, the normal activity pattern of the cared person is registered and set in advance by manual input by the carer. Also, this normal activity pattern is fixedly used without being changed so much once set because of the busyness of the caregiver. Since the normal activity pattern of the cared person is not fixed but changes over time, the normal activity pattern of the cared person may not match the latest activity state of the cared person. . In order to solve such a problem, as another embodiment of the present invention, a normal activity pattern of the cared person is automatically set by the activity pattern calculating means, and is further set to the latest activity pattern of the cared person. May be changed periodically on the basis of.

FIG. 36 is a flowchart for explaining the operation of the activity pattern calculating means relating to the automatic setting of the normal activity pattern of the cared person. Steps g1 to g
In step 8, the activity pattern of the care receiver is changed to step d in FIG.
Similar to 1 to d10, it is obtained based on the calculated values of the amount of exercise, the number of exercises, and the exercise speed every W1 time, and stored in the memory 25. In step g9, it is determined whether the number of days has passed a predetermined D1 day. W1 is, for example, one hour, and D1 is, for example, 14 days. If this determination is affirmative and the D1 day has elapsed, the process proceeds to step g10. In step g10, the normal activity pattern of the cared person during the D1 day is calculated as follows.

(1) Storage areas P1 (d, w, r), P2 (d, w, k), P3 (d,
w, s) is set in the memory 25, and at least two of the exercise amount, the number of exercises, and the exercise speed of the cared person are stored in the memory 25 every W1 hour for D1 days. Here, P1 is for storing the amount of exercise, P2 is for storing the number of exercises, and P3 is for storing the exercise speed. In addition, d represents a day, and w represents a time. The range of the time w is 1 to (24 / W
1). Also, r, k, and s are the amount of exercise every W1 hour,
The analysis results of the number of exercises and the exercise speed are shown.

(2) The average value M1 of the amount of exercise at the time T for D1 days is calculated by the equation (23).

(3) The average value R1 of the number of exercises at the time T for D1 days is calculated by the equation (24).

(4) D1 The average value S1 of the exercise speed at the time T for one day is calculated by the equation (25).

(5) From M1, R1, and S1 obtained above,
The amount of exercise, the number of exercises and the level of exercise speed are defined based on Table 4, and the corresponding activity patterns are calculated and calculated from a total of 27 activity patterns shown in Table 5, and the obtained activity patterns are cared for. Is set as the normal activity pattern of the person.

The respective average values are obtained by average value calculation means. Further, each average value may be an addition average as described above, or may be a weighted average that is calculated by assigning a larger weight to newer data.

[0147]

(Equation 4)

FIG. 37 is a flow chart for explaining the operation of the activity pattern calculating means relating to the change of the normal activity pattern of the cared person. In steps h1 to h8, the activity pattern of the cared person after the lapse of the D1 day is obtained based on the calculated values of the amount of exercise, the number of exercises, and the exercise speed for each W1 time similarly to steps g1 to g8 in FIG. Is stored. In step h9,
It is determined whether the number of days has passed a predetermined D2 day.
D2 is equal to or less than D1, for example, two days. If the determination is affirmative and D2 days have elapsed, the process proceeds to step h11. In step h11, the normal activity pattern is changed as follows.

(6) Of the data on the activity status of the cared person for D1 days, the oldest data for W2 hours for D2 days are deleted.

(7) Based on the data of the active state for the remaining (D1-D2) days and the new data for the D2 days after the D1 day, based on the data for a total of D1 days, a method similar to that of FIG. 36 is used. A new normal activity pattern is calculated and obtained, and the conventional normal activity pattern is changed to the obtained new normal activity pattern. (8) The above (6) and (7) are performed every D2 days.

In the present embodiment, the judgment means compares the activity pattern of the care receiver with the latest normal activity pattern calculated in this way, and determines whether or not the care of the care receiver is necessary. Judge. Therefore, an accurate judgment can be made.

As described above, according to the present embodiment, it is possible to automatically analyze the activity status of the cared person during the designated period, and to automatically learn the activity pattern of the cared person. This eliminates the need for the caregiver to manually input a normal activity pattern to be registered in advance. Therefore, it is not necessary for the caregiver to observe and analyze the activity status of the cared person, and the burden on the busy caregiver for data input can be eliminated. At the same time, it is possible to obtain an objective activity pattern of the care receiver. Furthermore, since the normal activity pattern is calculated by taking in the latest activity pattern of the cared person, the normal activity pattern can always be matched with the latest activity status of the cared person.

As still another embodiment of the present invention, the latest normal activity pattern of the cared person is compared with the past normal activity pattern, and the long-term tendency of the cared person's activity is monitored. You may do so.

FIG. 38 is a flowchart for explaining the operation of the judging means for monitoring the normal activity pattern of the cared person. The process proceeds from step i1 to i2, and it is determined whether or not it is time to change the normal activity pattern. If this determination is affirmative, the process proceeds to step i3, where the latest normal activity pattern is compared with the past p, for example, three times, normal activity patterns. At step i4, it is determined whether or not at least one of the past three normal activity patterns is different from the latest normal activity pattern. If so, the process proceeds to step i5 and an alarm is issued. You. In step i6, the latest normal activity pattern is stored as a past normal activity pattern, and the oldest normal activity pattern is deleted. Step i
When the process of Step 6 is completed, the process returns to Step i2 again, and the processes of Step i2 to Step i6 are repeated.

As described above, by comparing the latest normal activity pattern with the past normal activity pattern, it is possible to monitor a change in the long-term activity pattern of the care-receiver, which is difficult to understand in daily care. Becomes When there is a change in the normal activity pattern of the cared person, it is considered that some abnormality has occurred in the cared person. For example, when the normal activity pattern is changed from “normal” to “small” in the amount of exercise, it is considered that the physical strength has decreased. Conversely, the amount of exercise is “normal” to “high”
When the normal activity pattern is changed, it is considered that the excitement state or the like is continuously occurring. By notifying the caregiver of the change in the normal activity pattern, it becomes possible to give the caregiver a timing to change the care policy of the care receiver at an early stage. Thereby, care suitable for the care receiver can always be performed.

As described above, the probability of leaving the care-receiver ρ
Is determined by Table 6. Table 6 shows areas (direction division areas) for dividing the direction of movement of the center of gravity for each of the small sections 77.
The correspondence relationship between I to VIII and the bed leaving probability ρ is set in advance. Although this correspondence has been fixedly used until now, since the activity state of the cared person changes with time, as another embodiment of the present invention, the movement of the center of gravity occurs with the probability of leaving the bed. The recalculation may be performed every time, and the leaving probability ρ matching the latest state of the cared person may always be held.

FIG. 39 is a flowchart for explaining a method for recalculating the leaving probability ρ. The process proceeds from step j1 to step j2, and it is determined whether the current position of the center of gravity is within the leaving-bed prediction section. This determination is made based on the output of the leaving-bed prediction section detecting means. If this determination is affirmative, the process proceeds to step j3, where it is determined whether or not the center of gravity has moved. If this determination is affirmative, the process proceeds to step j4, in which the number of movements k of the center of gravity in the leaving-bed predicted section is calculated by the number-of-movements calculating means, and the moving direction of the center of gravity is detected by the moving direction detecting means.

At step j5, it is determined whether or not the bed has left. This determination is made based on the output of the leaving-bed detecting means. If the determination in step j5 is affirmative, the process proceeds to step j6, and if negative, the process proceeds to step j7. In step j6, the number of times of leaving the care-receiver f is calculated by the number-of-leaving-number calculating means, and the probability of leaving the bed in the direction of movement of the center of gravity in the small section having the center of gravity is recalculated as described later. In step j7, the bed leaving probability ρ in the direction of movement of the center of gravity in the small section before the center of gravity moves is recalculated as described later.

Next, a method of recalculating the leaving probability ρ will be specifically described. The leaving probability ρ is obtained as follows.

(A) The following storage area Pm for storing the center-of-gravity movement history data is divided into the small section 77 and the direction section areas I to VI.
Set in the memory 25 for each II.

(B) Each time the center of gravity moves in the predicted bed separation section, the combination data of the number of times k of the center of gravity is moved and the number of times the care receiver leaves the bed f is sequentially stored in the memory 25. The maximum number of the combination data stored in the memory 25 is predetermined. (5 in the present embodiment) Every time the combination data exceeding the maximum number of times is newly stored, the memory sequentially deletes the oldest combination data and updates it with new storage contents.

(C) The number of movements k of the center of gravity and the number f of leaving the cared person are read out from the memory 25.

(D) An out-of-bed occurrence probability ρ (= f / k) is calculated for each of the direction division regions I to VIII to which the moving direction of the center of gravity belongs.

The Pm has the following data structure. Pm (x, y, k, f, d1, d2, d3, d4, d
5)

Here, the integer m represents a direction segmented area, and P
1 to P8 represent storage areas respectively corresponding to the direction division areas I to VIII. x and y represent the addresses of the subsections. k represents the number of times the center of gravity has moved to the small section. When the number of movements of the center of gravity is three, k = 3, and when the number of movements of the center of gravity is five or more, k = 5. f represents the number of times of leaving the bed occurring during the past k times of movement of the center of gravity. d1, d2, d
3, d4, d5 are one before, two before, three before, four before, five
The presence / absence of leaving the bed at the time of the previous movement of the center of gravity is represented by 1: occurrence of leaving the bed, and 0: occurrence of leaving the bed. Next, a calculation example will be described.

(Calculation Example 1) When the center of gravity moves to the small section (1, 2) from the direction belonging to the direction division area II, the contents of the storage area P2 are changed to P2 (1, 2, 4, 2, 0, 0). , 1,
0, 1), f = 2 and k = 4, so ρ = 2
/4=0.5.

(Calculation Example 2) When the center of gravity moves to the small section (1, 2) from the direction belonging to the direction division area II and moves to another small section without leaving the floor, the storage content of P2 in the initial state is P2 If (1,2,4,3,1,0,1,0,1), the stored contents of P2 after the movement of the center of gravity will be 0 in d1 indicating no leaving the bed, and d2 to d5 will be the initial state. d1 to d4 are 1
P2 (1, 2, 5, 2, 0,
1, 0, 1, 0) and f = 2, k = 5, so ρ
= 2/5 = 0.4. The initial state d5 is deleted.

(Calculation Example 3) When the center of gravity moves to the small section (1, 2) from the direction belonging to the direction division area II and the bed leaves, the stored contents of P2 in the initial state are P2 (1, 2, 2, 3).
(5, 2, 0, 1, 0, 1, 0), the stored contents of P2 after the movement of the center of gravity are stored in d1 with 1 indicating that there is leaving the bed, and d2
Since the initial states d1 to d4 are shifted one by one into 2 to d5, P2 (1, 2, 5, 3, 1, 0, 1, 0, 1) is obtained, and f = 3, k = 5. Therefore, ρ = 3/5 = 0.6. The initial state d5 is deleted.

In the present embodiment, the judging means judges whether or not the moving direction of the center of gravity is a predetermined direction having a high probability of leaving the bed, based on the leaving probability ρ calculated in this way. Therefore, an accurate judgment can be made.

As described above, according to the present embodiment, every time the center of gravity moves, the oldest data is deleted and the latest data is adopted to recalculate the abnormality occurrence probability.
It is possible to always maintain a state suitable for the current situation. As a result, the probability of leaving the bed that is consistent with the current state of leaving the care-received person can be maintained, so that the occurrence of leaving the bed can be accurately predicted. Therefore, it is possible to prevent the care-receiver from leaving the bed beforehand and to prevent an accident or the like due to a fall that occurs at the time of leaving the bed.

As described above, according to the present invention, when a state in which the care receiver needs to be cared for occurs, in other words, when an abnormality such as leaving the bed, an end seat, or an abnormal activity state occurs, this is indicated by the display means. Will be displayed and care will be provided early.
The display contents of the display means include an error occurrence display, a report history display, a movement history display, and the like, but do not include an abnormality occurrence cause display. When the cause of the abnormality is displayed, the treatment required for nursing care can be prepared even earlier. As another embodiment of the present invention, the cause is searched from the characteristics of the activity data before the occurrence of the abnormality, and the cause is determined. It may be displayed.

FIG. 40 is a flowchart for explaining a method of searching for a cause of occurrence when an abnormal situation occurs in a terminal seat or an active state. The process proceeds from step k1 to step k2, where it is determined whether an end seat or an abnormal state of activity has occurred. This determination is made by the end seat detecting means or the activity state detecting means, and if so, the process proceeds to step k3. Step k3
In, the occurrence time of the end seat or the activity state abnormality and the occurrence position on the bed are stored in the memory 25. Next step k4
In, the amount of exercise, the number of exercises, and the exercise speed during W3 hours before the occurrence of an abnormality or end seating are analyzed and stored in the memory 25. The W3 time is predetermined and is, for example, 3 minutes. The occurrence time, the occurrence position, the amount of exercise, the number of exercises, and the exercise speed are operation data related to the activity pattern of the cared person, and are obtained by the data operation means.

At step k5, the newly stored operation data is compared with the operation data stored before it. At step k6, it is determined whether or not the two coincide. The latter already stored operation data is operation data relating to a standard activity pattern at the time of occurrence of an edge or an active state abnormality, and is stored for each cause of occurrence of an edge or an active state abnormality. The standard activity pattern is composed of calculation data of the occurrence time, place, amount of exercise, number of exercises, and exercise speed, and the method of creating it is described later. The new calculation data and the calculation data of the standard activity pattern are determined to match when all the conditions shown in Table 7 are satisfied, and both are determined to have a predetermined relationship. Steps k5 to k6 are performed by the relevancy calculating means. If the determination in step k6 is affirmative, the process proceeds to step k7.

[0174]

[Table 7]

In step k7, the cause of occurrence corresponding to the relevant standard activity pattern is read out from the memory, a signal representing the cause is sent to the display means, and the cause of the end seat or abnormal activity state is notified to the care giver. . Step k7
Is performed by the occurrence cause searching means. If the caregiver determines that the cause of occurrence is appropriate, step k8
Then, the process proceeds to step k9, where a series of processes for creating a standard activity pattern is started. At step k9, the caregiver sets the cause of occurrence of the new seat or abnormal activity state in the memory 25 via the cause data input means. At step k10, the time, place, amount of exercise, number of exercises, and exercise speed at the time of occurrence of an abnormal state of the end seat or the activity state and the set cause are sequentially stored in pairs. This processing is performed by classifying the activity data that satisfies all the conditions shown in Table 8 as the same as shown in Table 9 and storing them in a memory in the form of a table. The activity data is stored for the past N1 times for each cause. N1 is, for example, 100. Therefore, when the number of abnormalities to be stored exceeds N1 times, the abnormality that occurred most recently is erased, the latest abnormal data is stored, and data for N1 times or less is always stored.

[0176]

[Table 8]

[0177]

[Table 9]

At step k11, the activity data at the time of occurrence of an abnormal status or abnormal activity is analyzed.
In step 2, a standard activity pattern is created from activity data when the cause of occurrence is the same or an abnormal activity state occurs. The standard activity pattern is created by selecting a category having the largest number of activity data for each cause based on Table 9, and when the number of activity data belonging to the category is a% or more of the total activity data, the activity pattern is selected. Is the standard activity pattern.
The a% is, for example, 30%, and this value is set by the care giver for each care receiver. If the number of activity data is less than a% of the total number of activity data, the standard activity pattern is not created because the activity patterns for the same cause vary widely. At step k13, it is determined whether or not the creation of the standard pattern is completed. If completed, the process proceeds to step k14, and the newly created standard activity pattern is stored in the memory 25.

FIG. 41 is a flow chart for explaining a method of searching for the cause of occurrence when leaving the bed. Steps m1 to m15 of this flowchart are similar to steps k1 to k15 of the flowchart shown in FIG.
Only the differences will be described, and the description of the remaining portions will be omitted. FIG.
The only difference between FIG. 41 and FIG. 40 is that the occurrence position is not used as the activity data in FIG.

As described above, the situation (time of occurrence, etc.) at the time of occurrence of abnormally moving out of bed, end seat, and activity state, and the characteristics of the activity data before the occurrence (the amount of exercise, the number of exercises, the speed of exercise) are taken as the cause of the occurrence at that time. By associating with each other, it is possible to infer the cause of leaving the bed, the end seat, and the abnormal activity state occurring in the same situation. As a result, the cause of the abnormality can be communicated to the caregiver at the time of occurrence of the abnormality for the cared person whose situation has occurred in the past and the cause has been identified. It becomes possible.
As a result, in the abnormal occurrence stage, necessary treatment can be prepared, and the burden on the caregiver of the caregiver can be reduced.

For example, when a care receiver who has a high probability of causing an abnormal activity state due to urination at 0:00 to 1:00 causes an abnormal activity state at 0:00 to 1:00, if the care recipient has an abnormal activity state at 0:00 to 1:00, the characteristic of the activity data immediately before the occurrence indicates If the cause can be identified as "urination"
Information such as "urination occurred" is transmitted to the care receiver. Thereby, the care giver can prepare for urination treatment and can take care of the care receiver.

In this embodiment, the time of occurrence, the place of occurrence, the amount of exercise, the number of exercises, and the exercise speed are used as operation data. However, the present invention is not limited to this, and other items may be added. Items may be reduced.

In still another embodiment of the present invention, a portable terminal 88 (see FIG. 1) such as a portable telephone is prepared. These portable terminals 88 are carried by caregivers. When the caregiver performs care work for the cared person, the caregiver may be absent at the nurse station 5 provided with the display unit 8. Even in such a case, in order to surely transmit the alarm and the care support information to the caregiver, the second processing unit 7 outputs the alarm and the care support information due to the occurrence of the state to be cared for each bed. ,Send. The mobile terminal 88 may be a pager (registered trademark), a pager, or the like, in addition to a mobile phone, or may be another wireless receiving device.

The present invention also provides a plurality of weight detecting elements provided at the lower part of a bed for a cared person for detecting weight, and the position of the center of gravity of the cared person on the bed in response to the output of the weight detecting element. A center-of-gravity calculating means for calculating, a data calculating means responsive to an output of the center-of-gravity calculating means, and calculating data relating to the position of the center of gravity with the passage of time; Determining means for determining whether or not to care for the person, and responding to the output of the determining means,
Display means for displaying that the care receiver should be cared for.

According to the present invention, the care support status for caring for the cared person can be displayed and notified at the timing when care is required according to the activity status of the cared person.
According to the present invention, the weight can be detected by a plurality of weight detecting elements provided at the lower part of the bed, whereby the weight of the care receiver on the bed can be detected. The position of the center of gravity of the caregiver is calculated and found,
The data calculation means calculates data relating to the position of the center of gravity with the passage of time, and based on the data, determines whether or not to care for the cared person by the determination means, and displays the determination result on the display means. The weight detection element is
For example, three or more are provided, and the position of the center of gravity of the care receiver in a plane including the upper surface of the bed can be calculated and obtained.
In this way, we can grasp the care recipient's activity status in real time,
The nursing care support information corresponding to the activity status is obtained, and an alarm can be generated by a display means at, for example, a nurse station of a hospital, which is a medical facility. Can be.

The weight detection element can be realized in a relatively small size and is therefore inconspicuous. For elderly people with dementia, it is not preferable to place objects different from daily life around them, which hinders nursing work. From this viewpoint, a weight detection element having an inconspicuous configuration is preferable.

According to the present invention, the weight is detected by the plurality of weight detecting elements provided at the lower part of the bed for the cared person, the weight of the cared person on the bed is detected, and the cared person is calculated by the center of gravity calculating means. The position of the center of gravity of the bed on the bed is calculated, data on the position of the center of gravity with the passage of time is calculated by data calculating means, and based on this data, it is determined whether or not the care receiver should be cared for, and the display means The display shows that the cared person should be cared for, and monitors and grasps the cared person's activity status in real time and automatically analyzes the cared person. It is possible to reliably detect what should be performed and provide care and display a warning or the like, and thus provide appropriate care.

The present invention also provides a plurality of weight detecting elements provided at the lower portion of each of the plurality of care receiver beds for detecting weight, and responds to the output of the weight detecting elements to provide the care receiver on each bed. A center-of-gravity calculating means for calculating the position of the center of gravity, a care detecting means for responding to the output of each center-of-gravity calculating means to detect that the cared person should be in a care-required state, and an individual display area 56 for each bed. And a display means for displaying, in each of the individual display areas, a state to be cared for corresponding to the bed.

According to the present invention, the position of the center of gravity on the bed for each of a plurality of cared persons is calculated, whereby the care detecting means detects that each cared person should be cared. For example, the information is displayed by a display means installed in a room where a caregiver such as a nurse station is located.
In this display means, an individual display area for each bed is shown in FIG.
7. As shown in FIGS. 33 to 35, it is possible to display a state in which the care receiver of each bed should be cared for. This allows the caregiver to easily perform the work of caring for the care receiver.

According to the present invention, the position of the center of gravity on each of a plurality of beds is calculated, and it is detected that each cared person is in a state to be cared. Since the display can be performed,
Care work by the care giver for each of a plurality of care receivers can be easily performed.

Further, according to the present invention, the care detecting means includes a bed leaving detecting means for detecting that the detected weight is equal to or less than a predetermined value Wu in a state where the cared person does not exist on the bed, and a predetermined time. active state detecting means for detecting that the total value AL of the distances D at which the center of gravity has moved on the bed within n is outside a range of a predetermined value which is a normal activity state of the cared person, and a center of gravity on the bed The end seat detecting means for detecting that the position of the bed is in the end seat detection section, which is the peripheral part of the bed, and the total value GM of the distance the center of gravity has moved on the bed within a predetermined time M is determined by the care receiver turning over. And at least one of turn-over support detecting means for detecting that the value is less than a predetermined value G0.

According to the present invention, the state in which the care receiver should be cared is, for example, at least one of leaving the bed, an active state, an end seat, and a turnover support request, and may be plural.

Regarding leaving the bed, when a care receiver such as an elderly person on the bed leaves the bed, it is determined that there is danger, and an alarm can be generated by the display means. For example, four weight detecting elements are provided for each bed, and the weight of the bed is set to 0.1 for each weight detecting element.
If it can be switched every 15 seconds, it will be 0 .0 per bed.
In six seconds, the outputs of a total of four weight sensing elements can be detected and stored in memory, so every 0.6 seconds,
Data on the center of gravity of the cared person can be obtained. Based on the newly detected center of gravity data and the center of gravity data detected one time before and stored in the memory, the moving distance D between them can be calculated and obtained based on Pythagorean theorem. In this way, information on the moving distance D can be obtained every 0.6 seconds. For averaging, a value obtained by adding the information of the moving distance D for, for example, five times is set as AL, and this value AL is
Every 0.6 seconds a new distance D is used for the calculation,
The oldest distance D is not used for the calculation. In this way, the total value AL represents the sum of the distances of movement of the center of gravity for a predetermined time n, for example, 3 seconds (= 0.6 × 5). It is an index that shows the caregiver's activity,
This can be called an activity level. The activity level is updated every 0.6 seconds, and the activity level of the care receiver can be monitored by using the activity level. When the total value AL, which is the activity level, is not within the range of a predetermined value, which is the normal normal activity state of the cared person, the display means indicates that care is required.

The activity state of the cared person is the amount of movement of the center of gravity at a predetermined time n, and indicates the degree of activity of the cared person. For example, when an abnormal state in which the cared person is excited occurs and the degree of activity is high, that is, when the total value AL, which is the activity level, exceeds a predetermined value AL2 (AL> AL2), the cared person's excited state Is displayed by the display means. When the total value AL, which is the activity level, is less than another predetermined value AL1 (AL <AL1), the care receiver is in an abnormal state in which he / she has not turned over at all and has low activity. Is detected, whereby the display means indicates that the care receiver is in a state of reduced activity.

Regarding the end seat, by recognizing the position of the center of gravity of the cared person on the bed, it is possible to detect, for example, the cared person sitting on the edge of the bed, which is the periphery of the bed. In particular, when the time at which the end seat is detected is midnight detected by the clock means,
It is presumed that he is awake despite the fact that he should be asleep. This condition is an abnormal condition, and the cared person needs care.

The turn-over support request is necessary at a care site, particularly to prevent the bedridden elderly from rubbing the floor. Floor rubbing occurs when the skin between the bone and the bedding continues to be pressed. In order to prevent floor rubbing, the most effective prevention method is to change the position of the caregiver to change the orientation of the care receiver. However, especially when the caregiver is running out at midnight, changing the position of the cared person is a heavy labor. Therefore, when the position of the center of gravity of the care receiver on the bed hardly moves for a predetermined time M, a turnover support request indicating that the turnover is automatically required is displayed by the display means. This enables the caregiver to perform efficient care without being restricted by the schedule management of the position change of the care receiver. In this way, when the care receiver such as an elderly person does not move the center of gravity by turning over for a long time, it is determined that turning support is necessary, and the display means displays the fact.

According to the present invention, whether or not care is required for each of a plurality of cared persons can be obtained based on leaving the bed, active state, end sitting, and turning-over support request. Be able to provide care.

[0198]

According to the first aspect of the present invention, the data relating to the position of the center of gravity with the passage of time includes the amount of exercise of the cared person,
An activity pattern based on at least two of the number of times of exercise and the exercise speed is calculated and obtained,
By comparing the activity pattern with a predetermined activity pattern, it is possible to determine whether the care receiver should be cared for, and to perform appropriate care.

According to the second aspect of the present invention, when the moving area of the position of the center of gravity on the bed within the predetermined time is a predetermined section on the bed to be cared for, an abnormality occurs in the care receiver. It is determined that the care recipient has been cared for, and thus the care recipient can be cared for at an early stage.

According to the third aspect of the present invention, if the moving direction of the center of gravity of the cared person on the bed is a predetermined direction in which the cared person has a high probability of leaving the bed, the occurrence of the leaving of the cared person is determined. Predict and communicate to caregiver by display means. Therefore, it is possible to reliably prevent the care receiver from falling off the bed that occurs when the user leaves the bed, and prevent the care receiver from falling and wandering after the user leaves the bed.

According to the fourth aspect of the present invention, each subsection is:
Since the bed is divided into a plurality of direction segmented areas and the leaving probability ρ is set for each direction segmented area, when the direction in which the cared person moves is detected, the direction segmented area to which the direction belongs belongs to the direction. Can be obtained. When the obtained ρ is equal to or greater than a predetermined value ρo,
It can be determined that the direction is a direction with a high probability of leaving the bed. Therefore, it is possible to reliably predict occurrence of leaving the bed with a simple configuration.

According to the fifth aspect of the present invention, the memory includes:
The detection results of leaving the bed, the activity state, the end seat, and the turnover support request over a predetermined time are stored, and the display means displays the report history, which is the stored content of the memory. You can know the frequency you need. This makes it possible to easily prepare for care for each care receiver.

According to the sixth aspect of the present invention, for each of the plurality of beds, the center of gravity calculating means is provided together with the weight detecting element, whereby a circuit subsequent to the center of gravity calculating means, such as a data calculating means, is operated. The burden can be reduced.

According to the seventh aspect of the present invention, the trajectory of the position of the center of gravity on the bed with the lapse of time is displayed by the display means, so that the moving state of the care receiver over time can be known. It is easy to grasp the state of the caregiver.

According to the eighth aspect of the present invention, the caregiver does not need to manually input a normal activity pattern to be registered in advance. Therefore, it is not necessary for the caregiver to observe and analyze the activity status of the cared person, and the burden of the caregiver on data input can be reduced. At the same time, an objective activity pattern of the cared person can be obtained.

According to the ninth aspect of the present invention, the stored contents of the memory are deleted every time a predetermined time elapses, and are updated with new stored contents. A matching normal activity pattern of the cared person can be obtained.

According to the tenth aspect of the present invention, it is possible to maintain the probability of leaving the bed that matches the current state of leaving the bed of the care-receiver. Therefore, it is possible to accurately predict the occurrence of leaving the bed, and it is possible to prevent an accident due to a fall that occurs when the cared person leaves the bed.

According to the eleventh aspect of the present invention, each time new combination data is stored, the oldest stored combination data is sequentially erased and updated to new storage contents. Therefore, it is possible to further maintain the probability of getting out of bed that matches the current state of getting out of bed of the care-receiver.

According to the twelfth aspect of the present invention, when an abnormality such as leaving the bed, an end seat, or an abnormal activity state occurs, the cause can be transmitted to a caregiver. Ready. Therefore, it is possible to reduce the burden of caregiver's care work.

According to the thirteenth aspect of the present invention, since the operation data related to the activity pattern of the cared person is appropriately set, the activity pattern of the cared person can be properly grasped.

According to the fourteenth aspect of the present invention, the first control means disposed near each bed has the center of gravity calculating means, the care detecting means, and the first transmitting means, so that the wiring work can be easily performed. It is possible to reduce the burden of calculation of a circuit subsequent to the care detecting means, for example, a processing circuit for the display means, and to perform real-time care even when the number of cared persons increases. It is possible to display a judgment result that requires care of the person.

According to the fifteenth aspect of the present invention, a plurality of types of care-required states for each cared person detected by the care detecting means are displayed in the individual display area of the display means, respectively. By looking at the display means, it is possible to easily know what kind of care-recipient's care-requiring state is, and thereby to be able to perform appropriate care.

According to the sixteenth aspect of the present invention, only the state of the type selected by the selecting means among the plurality of types to be cared for by each cared person is displayed. It is possible to know only the types of care that should be taken, making it easier to prepare for care.

According to the seventeenth aspect of the present invention, the state to be cared for by the cared person can be output to the terminal of the nurse call switch, so that the existing transmission line can be utilized and the hospital room and the nurse station can be used. There is no need to lay a dedicated cable for connecting to the display means, and the installation cost can be reduced. Further, even when the care receiver cannot press the nurse call switch by his / her own will, it can notify the nurse station at the timing when the state to be cared for is detected.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an entire configuration of a care support device 1 according to an embodiment of the present invention.

FIG. 2 is a diagram showing a simplified configuration of a care receiver monitoring device 3;

FIG. 3 is a simplified perspective view of the care receiver monitoring device 3;

FIG. 4 is a block diagram showing an overall electrical configuration of the care support device 1.

FIG. 5 is an enlarged perspective view of a bed 9;

FIG. 6 is a plan view of the weight detection element 13.

FIG. 7 is a longitudinal sectional view of the weight detecting element 13.

FIG. 8 shows a first processing unit 18 included in the first control unit 15.
5 is a flowchart for explaining the operation of FIG.

FIG. 9 is a diagram for explaining a leaving-bed detection function A2.

FIG. 10 is a simplified plan view of a bed 9;

11 is a diagram for explaining an activity state of a care receiver 33. FIG.

FIG. 12 is a diagram for explaining end seat monitoring.

FIG. 13 is a diagram illustrating a state in which a care receiver 33 performs turnover monitoring on a bed 9;

FIG. 14 is a diagram showing a configuration of a signal 37 transmitted from the first processing means 18 to the transmission line 4 via the first transmission means 19;

FIG. 15 shows a second processing unit 7 included in the second control unit 16;
5 is a flowchart for explaining the operation of FIG.

FIG. 16 is a diagram showing each screen displayed by the display means 8;

FIG. 17 is a view showing an entire display screen displayed by the display means 8;

FIG. 18 is a diagram showing a bed-specific display screen 49 for each caregiver.

FIG. 19 is a diagram showing a report display selection screen 50.

20 is a diagram showing a patient-specific report history display screen 51. FIG.

21 is a diagram showing another form of the patient-specific report history display screen 51. FIG.

22 is a diagram showing a patient-specific movement history display screen 52. FIG.

FIG. 23 is a view showing a patient-specific database screen 53 displayed by the display means 8;

FIG. 24: Step b in FIG. 15 of the second processing means 7
6 is a flowchart showing the activity monitoring operation of FIG. 5 more specifically.

FIG. 25 is a flowchart for explaining the operation of extracting and calculating the feature of the activity pattern of the cared person in step c2 in FIG. 24 of the cared person by the second processing means 7.

FIG. 26 is a simplified plan view of the bed body 11 of the bed 9 for achieving the function B9 relating to the position of the center of gravity G on the bed 9 of the care receiver.

FIG. 27 is a flowchart for explaining the operation of the processing circuit 7 for achieving the function B9 related to the position of the center of gravity G on the bed 9 of the care receiver.

FIG. 28 is a simplified plan view of the bed 9 for explaining steps c8 to c10 of FIG. 24 for achieving the above-described function B10 relating to leaving bed prediction.

FIG. 29 is a flowchart for explaining a specific operation of the second processing means 7 for executing steps c8 to c10 in FIG. 24 for achieving the above-described function B10 relating to leaving bed prediction.

FIG. 30 is a simplified plan view of the bed 9 illustrating an operation for detecting the moving direction of the center of gravity in the bed leaving prediction section 74 of the care receiver on the bed 9;

FIG. 31 is a diagram for explaining a method of calculating the direction of movement of the center of gravity.

FIG. 32 is a diagram showing an area in the small section 77 shown in FIG. 30 that divides the direction of movement of the center of gravity.

FIG. 33 is a diagram showing a display screen 78 of the display means 8 shown in Table 1 in the third embodiment of the present invention.

FIG. 34 illustrates a fourth embodiment of the present invention described above in connection with Table 1.
It is a figure showing the display screen 78 of the display means 8 in the form.

FIG. 35 illustrates a fifth embodiment of the present invention as described above in connection with Table 1.
It is a figure showing the display screen 78 of the display means 8 in the form.

FIG. 36 is a flowchart for explaining the operation of an activity pattern calculation means related to automatic setting of a normal activity pattern of a cared person.

FIG. 37 is a flowchart for explaining the operation of the activity pattern calculating means relating to the change of the normal activity pattern of the care receiver.

FIG. 38 is a flowchart for explaining the operation of the determination means for monitoring a normal activity pattern of the care receiver.

FIG. 39 is a flowchart for explaining a recalculation method of a bed leaving occurrence probability.

FIG. 40 is a flowchart for explaining a method of searching for a cause of occurrence when a terminal seat or an abnormal activity state occurs.

FIG. 41 is a flowchart illustrating a method of searching for a cause of occurrence when leaving a bed.

[Explanation of symbols]

 Reference Signs List 1 care support device 3 cared person monitoring device 5 nurse station 6 second transmission means 7 second processing means 8, 23 display means 9 bed 11 bed body 12 legs 13a to 13d weight detection element 15 first control means 16 second Control means 18 First processing means 19 First transmission means 20 Function selection means 21 Zero adjustment means 22 Nurse call switch 25 Memory 26 Printer 33 Cared person 48 Overall display screen 49 Bed-specific display screen 50 Report display selection screen 51 Patient-specific report History display screen 52 Patient-specific movement history display screen 53 Patient-specific database screen 73 Normal position 74 Evacuation prediction section 75 Edge detection section 83 Bed selection switch 84 Report selection switch 88 Mobile terminal

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) // G06F 17/60 126 A61B 5/10 310Z (72) Inventor Sadaaki Murakawa 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo No. 1 Kawasaki Heavy Industries, Ltd.Kobe Factory (72) Inventor Shoji Toyoda 3-1-1 Higashi Kawasaki-cho, Chuo-ku, Kobe City, Hyogo Prefecture Kawasaki Heavy Industries, Ltd.Kobe Factory (72) Inventor Osamu Hanata Kobe, Hyogo Prefecture 3-1-1 Higashi-Kawasaki-cho, Chuo-ku Kawasaki Heavy Industries, Ltd. Kobe Plant (72) Inventor Hirofumi Matsuno 3-1-1, Higashi-Kawasaki-cho, Chuo-ku, Kobe City, Hyogo Prefecture Kawasaki Heavy Industries, Ltd. Kobe Plant (72) Inventor Tadashi Okada 3-2-1 Takatsukadai, Nishi-ku, Kobe City, Hyogo Prefecture Kawabe Disaster Prevention Industrial Co., Ltd.Kobe Headquarters / Headquarters Plant (72) Inventor Motoyuki Adachi 5-22 Chasonobacho, Akashi City, Hyogo Prefecture Daiwa Seiho Co., Ltd. (72) Inventor Akio Hirose 5-22, Tea Garden Town, Akashi City, Hyogo Prefecture Japanese-made 衡 within Co., Ltd.

Claims (17)

[Claims] 1. A data calculating means for calculating data relating to the position of the center of gravity of a care receiver over time on a bed, and in response to an output of the data calculating means,
Determination means for determining whether to care for the cared person; data calculation means for calculating a movement amount which is a sum of distances moved on the bed within a predetermined time; and a center of gravity on the bed. At least one of movement number calculation means for counting the number of times from when the movement starts to when the movement stops, and movement speed calculation means for calculating the movement speed from the time when the center of gravity starts moving on the bed until it stops. And an activity pattern operation for responding to at least two outputs of the exercise amount operation means, the number of exercises operation means, and the exercise speed operation means and calculating an activity pattern comprising a combination of the magnitudes of the outputs. The determination means responds to the output of the activity pattern calculation means and determines whether the calculated activity pattern is a normal activity pattern of the cared person. A care support device characterized in that it is turned off. 2. A data calculating means for calculating data relating to the position of the center of gravity of the cared person on the bed with the passage of time, and in response to an output of the data calculating means,
Determining means for determining whether to care for the cared person; wherein the data calculating means obtains a moving area of the position of the center of gravity on the bed within a predetermined time; and the determining means determines the moving area obtained by the data calculating means. Is a care support device characterized in that it is determined whether or not it is a predetermined section on a bed where the care receiver should be cared. 3. A data calculating means for calculating data relating to the position of the center of gravity of the cared person on the bed with the passage of time, and in response to an output of the data calculating means,
Determining means for determining whether or not to care for the cared person, the data calculation means, a leaving-bed prediction section detecting means for detecting that the position of the center of gravity on the bed is in the leaving-bed prediction section, which is the periphery of the bed, Responding to the output of the leaving-bed prediction section detecting means, and detecting a moving direction of the center of gravity when the position of the center of gravity is in the leaving-bed prediction section; and determining means responding to the output of the moving direction detecting means. A nursing care support device that determines whether the detected moving direction is a predetermined direction in which the care receiver has a high probability of leaving the bed. 4. The leaving-bed prediction section is divided into a plurality of small sections, and each of the small sections is divided into a plurality of areas dividing a moving direction of the center of gravity in a circumferential direction. A probability ρ is set, and the determining means obtains a detected leaving-bed occurrence probability ρ in the moving direction based on the direction segmented area to which the moving direction belongs, and the determined leaving-bed occurrence probability ρ in the moving direction is a predetermined value. 4. The care support device according to claim 3, wherein the detected moving direction is determined to be a predetermined direction having a high probability of leaving the bed when the moving direction is equal to or greater than ρo. 5. A plurality of weight detecting elements provided at a lower portion of a bed for a cared person for detecting weight, and a center of gravity for calculating a position of a center of gravity of the cared person on the bed in response to an output of the weight detecting element. A calculating means, and a display means responsive to the output of the determining means for indicating that the care receiver should be cared for, the data calculating means further comprising: the detected weight does not indicate that the care receiver is present on the bed. A bed exit detecting means for detecting that the state is equal to or less than a predetermined value Wu, and a distance D by which the center of gravity moves on the bed within a predetermined time n
State detecting means for detecting that the sum AL of the cared person is out of a range of a predetermined value which is a normal activity state of the cared person; End seat detecting means for detecting that the cared person is in the section, and that the total value GM of the distance moved by the center of gravity on the bed within the predetermined time M is less than the predetermined value G0 at which the care receiver should turn over. At least one of turn-over support detecting means for detecting, and further outputting at least one of the bed-off detecting means, the activity state detecting means, the end seat detecting means, and the turn-over support detecting means for a predetermined time. The care support device according to any one of claims 1 to 4, further comprising a memory for storing the contents of the memory, wherein the display unit displays the stored contents of the memory. 6. A plurality of beds are provided, a weight detecting element and a center of gravity calculating means are provided for each bed, and the data calculating means calculates and displays the data for each bed. 6. The care support device according to claim 5, wherein the information is displayed on a means. 7. The data calculation means stores the position of the center of gravity in a memory for a predetermined time, and the display means displays a locus of the position of the center of gravity stored in the memory. Or 6
The care support device according to the above. 8. The activity pattern calculating means, comprising: a predetermined time D for outputting at least two outputs of an exercise amount calculating means, an exercise frequency calculating means and an exercise speed calculating means;
1 and a memory D that stores the predetermined time D1 in response to the stored contents of the memory.
And an average value calculation means for calculating each average value of the at least two outputs in the above, and a normal activity pattern calculation means for calculating the normal activity pattern in response to an output of the average value calculation means, 2. The care support according to claim 1, wherein a response is made to the outputs of the activity pattern calculating means and the normal activity pattern calculating means to determine whether the activity pattern of the care receiver is the determined normal activity pattern. apparatus. 9. Each time the memory newly stores the at least two outputs for a predetermined time D2 that is equal to or shorter than the time D1, the memory erases the oldest stored content for the time D2 and replaces it with new stored content. 9. The care support device according to claim 8, wherein the device is updated. 10. The leaving-bed detecting section, wherein the data calculating unit further detects that the detected weight is equal to or less than a predetermined value Wu in a state where the cared person is not present on the bed. A number-of-movements calculating means responsive to the output of the detecting means for calculating the number of movements k of the center of gravity in the predicted leaving-bed section; And a probability calculating means for calculating a bed leaving probability ρ (= f / k) for each moving direction of the center of gravity in response to the outputs of the number-of-movements calculating means, the number-of-leavings calculating means and the moving direction detecting means. The means responds to the outputs of the moving direction detecting means and the probability calculating means, and determines whether the detected moving direction is a predetermined direction with a high probability that the cared person will leave the bed. Care support apparatus according to claim 3 or 4, wherein that. 11. The probability calculating means responds to the outputs of the number-of-movements calculating means and the number-of-leavings calculating means, and the number of times k of the center of gravity moves and the number of times of leaving the cared person each time the movement of the center of gravity occurs in the predicted leaving-bed section. a memory for sequentially storing the combination data of f, wherein the memory sequentially deletes the oldest combination data and updates the new storage contents each time the combination data is newly stored. The nursing care support device according to claim 10, wherein: 12. A cause data input means for inputting cause data representing a cause of a state in which a cared person should be cared for, and an output of a judging means, and it is judged that cared person should be cared for. A memory for storing calculation data and cause data relating to the activity pattern of the cared person by the data calculating means; and a memory for responding to the output of the judging means and for judging that the cared person should be cared for. And a new operation data stored in the memory in response to the output of the relevancy operation means, for calculating whether the operation data stored in the new operation data and the new operation data have a predetermined relation. When it is relevant to the data being
2. An occurrence cause searching means for reading an occurrence cause corresponding to the relevant data from a memory and sending a signal indicating the occurrence cause to said display means.
The care support device according to 1. 13. The method according to claim 1, wherein the calculation data includes a time at which a state in which the cared person should be cared for occurs, a location, and the amount of exercise, the number of exercises, and the exercise speed of the cared person before the occurrence time. The care support device according to claim 12. 14. A first control means is disposed near each bed, wherein the first control means responds to the output of the center of gravity calculating means and the center of gravity calculating means, and is in a state in which the care receiver should be cared for. And a first transmission means for transmitting the output of the care detection means via a transmission line or wireless means, and a second control means is disposed near the display means. The second control means has a second transmission means connected to the first transmission means via a transmission line or a wireless means, and provides an output of the second transmission means to the display means. A care support device according to any one of claims 13 to 13. 15. The care detection means detects a plurality of types of care-required states, and the first control means generates a care-state occurrence that indicates occurrence of a care-required state when at least one of the care-required states occurs. 15. The care support device according to claim 14, wherein the signal is transmitted by a first transmission unit, and the second control unit performs display by the display unit in the individual display area using a care state generation signal. 16. The care detecting means detects a plurality of types of states to be cared for, and the second control means has means for selecting the type of the state to be displayed by the display means. 16. The nursing care support device according to claim 15, wherein only the type of nursing care selected by the means is displayed. 17. The cared person's bed is provided with a nurse call switch, and a terminal of the nurse call switch can output a state to be cared for by the cared person. The care support device according to one of the above.