JP3529332B2 - Nursing support device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting the work of caring for a cared person such as a patient with senile dementia. In the present specification, the term "nursing care" also includes nursing care.

[0002]

2. Description of the Related Art In welfare facilities, medical facilities, etc., the care of the cared person including the patient is a burden on the carer. Also,
The number of care recipients is increasing year by year, and the burden of care work per caregiver is also increasing. As a result, it is becoming more difficult to provide detailed care.

In order to reduce the burden on the care giver and to provide detailed care to the care giver, the situation of the care giver on the bed is grasped in real time, and the care work can be appropriately performed according to the situation. There is an urgent need to do so. In addition, since the number of caregivers is small at night and the like, there is a strong demand for the development of a system for grasping the condition of care recipients in a central control room such as a nurse station.

With the aging of the population, the number of elderly people with dementia is increasing. In addition, due to the declining birthrate and the nuclear family, caregivers at home are currently being reduced, and countermeasures for the elderly with dementia have become a major issue. Based on this situation, facilities such as health care facilities for the elderly and nursing homes for the elderly are being gradually constructed in various places. However, even today, the working environment of caregivers working in such facilities is not good. In particular, working at night is extremely harsh considering the behavior pattern of elderly people with dementia, who can work day and night. In addition, even elderly people who are cared for often have unforeseen circumstances because they do not have the means to accurately convey the condition in which they want to seek care.

As a method of 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 the cared person, the method of directly monitoring with a surveillance camera is not preferable in terms of social belief.

As a system for monitoring the night loitering of a demented elderly person, there is a method of monitoring the condition of a patient room at night with a camera. However, due to human rights issues, full-day monitoring is difficult. Also, there is a limit to the work of keeping looking at the monitor camera.

A method has been considered in which an oscillator is attached to the body of an old man and the position of this oscillator is tracked, but since the old man sometimes removes the oscillator himself, and it becomes an expensive system. It has not spread.

There is a method of detecting abnormal motion of an old man as sound. This is also difficult to detect accurately from the various sound sources that actually occur.

A typical prior art is Japanese Patent Publication No. 3-51411.
And JP-A-10-201719. In these prior arts, a load cell, a weight sensor are provided in the leg part of the bed where the care recipient such as the patient exists, the weight of the care recipient on the bed is managed, and the care recipient does not exist on the bed, When you get out of bed, an alarm is issued.

In these prior arts, it is not possible to predict in advance the occurrence of leaving the care receiver on the bed, and it is not possible to grasp the abnormal condition of the care receiver.

Further, when the caregiver wants to obtain a nurse call according to the movement of the elderly, the caregiver is not limited to leaving the bed. For example, if the old man makes an active move on the bed, it is an abnormal situation and the caregiver should turn to the old man. Especially in the case of the elderly with dementia, the behavior pattern varies depending on the individual. It turns out that a system that automatically gives an alarm when an old man should normally ring his own nurse call is preferable.

[0012]

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

[0013]

DISCLOSURE OF THE INVENTION The present invention provides a data calculation means for calculating data relating to the position of the center of gravity of a cared person on a bed over time, and the data calculation means in response to the output of the data calculation means. The data calculation means includes a judgment means for judging whether to care for the cared person,
A momentum calculating means for calculating a momentum which is a sum of distances moved on the bed within a predetermined time, a motion number calculating means for counting the number of times from when the center of gravity starts to move on the bed to when it stops, and the bed At least two of a moving speed calculating means for calculating a moving speed from when the center of gravity starts moving to when the center of gravity stops, and further, a moving amount calculating means, a moving number calculating means, and a moving speed calculating means. Of at least two of the outputs, and an activity pattern calculation means for calculating an activity pattern composed of a combination of the outputs of the two, the determination means is responsive to the output of the activity pattern calculation means and calculates the activity pattern. It is a care support device characterized by judging whether the activity pattern obtained by 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 calculation means is at least the amount of exercise, the number of times of exercise and the rate of exercise on the bed of the cared person. The activity pattern for each care recipient is calculated based on the combination of the magnitudes of at least two outputs including two. When the determination means determines that the activity pattern calculated in this way is not a normal activity pattern and that the care receiver should be cared for, this is displayed by the display means. In this way, the caregiver can care for the care receiver. The normal activity pattern is an activity pattern that does not require care for the care receiver. 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 directly extracted by the carer to obtain the activity pattern of the cared person.

It can be said that 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 is the moving distance of the position of the center of gravity per unit time. As for the number of exercises, the number of times from the start of movement of the center of gravity of the care-receiver on the bed to the stop thereof is set to one, and the number of times is counted over a predetermined time, whereby the number of exercises is obtained. The exercise speed is the moving speed of the position of the center of gravity of the care receiver on the bed. The configuration for calculating the activity pattern and determining whether to care for the care receiver will be described later with reference to FIG. 25.

According to the present invention, the activity pattern computing means stores a memory for storing outputs of at least two of the exercise amount computing means, the exercise frequency computing means and the exercise velocity computing means for a predetermined time D1, and the stored contents of the memory. In response to the average value calculation means for calculating each average value 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 calculation means. And a determining means, which is responsive to the outputs of the activity pattern calculating means and the normal activity pattern calculating means, and determines whether the caregiver's activity pattern is the obtained normal activity pattern. And

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

Also, in the present invention, the memory is configured so that the at least two outputs are set to a predetermined time D that is equal to or less than the time D1.
Each time the data is newly stored over two times, the oldest stored contents for the time D2 are erased and updated to new stored contents.

According to the present invention, the stored contents of the memory are erased and updated with new stored contents every time a predetermined time elapses. The person's normal activity pattern can be obtained.

Further, according to the present invention, in response to the output of the cause data inputting means for inputting the cause data indicating the cause of the occurrence of the state of requiring care for the care receiver and the output of the judgment means, the care receiver should be cared for. When judged, it is judged that the memory for storing the calculation data related to the activity pattern of the care receiver by the data calculation means and the cause data and the output of the judgment means should be taken care of the care receiver. At this time, the relevance calculation means for calculating whether or not the calculation data stored in the memory and the new calculation data have a predetermined relation, and the new calculation data in response to the output of the relation calculation means. When there is a relation with the data stored in the memory, the cause of occurrence corresponding to the relevant 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. Further, the present invention is characterized in that the calculation data is a time, a place, and an amount of exercise, a number of exercises, and an exercise speed of the care receiver before the occurrence time of a state in which the care receiver should care. .

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

The present invention further comprises a plurality of weight detecting elements for detecting the weight related to the bed, and a center of gravity calculating means for calculating the position of the center of gravity of the care receiver on the bed in response to the output of the weight detecting elements. And a display unit that displays that the care receiver should be cared for in response to the output of the determination unit, and the data calculation unit is in a state in which the detected weight does not exist on the bed. A bed leaving detection means for detecting that it is less than or equal to a predetermined value Wu, and a total value AL of the distances D in which the center of gravity moves on the bed within a predetermined time n is a predetermined value that is the normal activity state of the cared person. Within a predetermined time M, and an active state detecting means for detecting that the position of the center of gravity on the bed is in an edge detecting section which is a peripheral part of the bed. Center of gravity moves on the bed The total value GM of the separated distances has at least one of turnover support detecting means for detecting that the care receiver is less than a predetermined value G0 at which the caregiver should turn over, and further the bed leaving detection means and the activity state. It is characterized in that it has a memory for storing at least one output of the detection means, the end-seat detection means, and the turning-over support detection means for a predetermined time, and displays the stored content of the memory by the display means.

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 the bed, active state, end sitting, and turning over support request,
It is stored in the memory for a predetermined time, and the notification history is displayed by the display means, as will be described later with reference to FIGS. 20 and 21, for example. As a result, it is possible to know the frequency of requiring care for each care recipient, and to easily prepare for care for each care recipient.

The present invention is also provided with a plurality of beds,
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, each bed of each of a plurality of cared persons is provided with a center of gravity calculating means, and by this, the output from the weight detecting element for each bed is given to calculate the center of gravity. It is possible to reduce the calculation load of the circuit. The data calculation means may be provided for each bed, and the output of the data calculation means may be transmitted to, for example, a nurse station, etc., thereby further reducing the calculation load of the subsequent circuits. Become. The data calculation means for each bed may be provided in, for example, a nurse station, and the output of the center of gravity calculation means may be transmitted and given 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 display means displays a locus of the position of the center of gravity stored in the memory.

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's position can be displayed. By storing the center of gravity data, it is possible to know the moving state of the care receiver on the bed over time.

Also, the present invention responds to the output of the data calculation means for calculating the data related to the position of the center of gravity of the care-receiver on the bed over time, and the care-received person according to the data. And a determination means for determining whether or not to care for, the data calculation means obtains a movement area of the center of gravity position on the bed within a predetermined time, and the determination means determines that the movement area obtained by the data calculation means is
A plurality of weight detection elements for determining whether the cared person is a predetermined section on the bed to detect the weight, and a plurality of weight detection elements for detecting the weight associated with the bed, and responding to the outputs of the weight detection elements A center of gravity calculating means for calculating the position of the center of gravity of the person, and a display means responsive to the output of the determining means for displaying that the care recipient should be taken care of, and the data calculating means further includes a detected weight, The total value AL of the bed leaving detection means for detecting that the cared person is below the predetermined value Wu, which is a state in which the cared person does not exist on the bed, and the distance D by which the center of gravity moves on the bed within the predetermined time n are An activity state detecting means for detecting that the caregiver is out of the range of a predetermined value which is a normal activity state, and detects that the position of the center of gravity on the bed is in the end-seat detection section which is the peripheral part of the bed. End seat detection means, At least one of a turnover support detecting means for detecting that the total value GM of the distances the center of gravity moves on the bed within the closing time M is less than a predetermined value G0 for the care receiver to turn over. And further,
There is a memory for storing at least one output of the bed leaving detection means, the activity state detection means, the end seat detection means, and the turning over support detection means for a predetermined time, and the display means displays the stored contents of the memory. , A plurality of beds are provided, a weight detection element and a center of gravity calculation means are provided for each bed, and the data calculation means is
The data is calculated for each bed and displayed on the display means, and the data calculation means stores the position of the center of gravity in the memory for a predetermined time, and the position of the center of gravity stored in the memory by the display means. It is a care support device characterized by displaying the locus of. The present invention also provides a data calculation means for calculating data related to the position of the center of gravity of the care receiver on the bed over time, and an output of the data calculation means for responding to the output of the data calculation means to care for the care receiver. The data calculation means obtains the movement area of the position of the center of gravity on the bed within a predetermined time, and the judgment means determines that the movement area obtained by the data calculation means is the care recipient. The cause data input means for determining whether the area is a predetermined area on the bed to be cared for and for inputting the cause data indicating the cause of the condition for caring for the care receiver, and the output of the judgment means, When it is determined that a caregiver should be taken care of, a memory for storing the calculation data and the cause data related to the activity pattern of the care receiver by the data calculation means, and the determination means Responsiveness calculating means for calculating whether or not the calculated data stored in the memory and the new calculated data have a predetermined relationship when it is determined that the care recipient should be cared for in response to the force. In response to the output of the relation calculating means, when there is a relation between the new calculation data and the data stored in the memory, the cause of occurrence corresponding to the relevant data is read from the memory and displayed. And a cause search unit that sends a signal indicating a cause to the means. According to the present invention, as will be described later with reference to FIGS. 26 and 27, the movement area of the center of gravity position on the bed of the care giver within a predetermined time period is obtained, and the position of the care recipient on the normal bed is calculated. To extract. The cared person divides the plane of the bed on which the cared person can ride into a plurality of compartments, and determines one or a plurality of compartments where the cared person usually exists. When there is no care recipient in the area where you normally should be, there may be an abnormality in the care recipient,
The judgment means judges this, and therefore, the care receiver can be cared for at an early stage.

The present invention also responds to the output of the data calculating means and the data calculating means for calculating the data relating to the position of the center of gravity of the cared person on the bed with the passage of time, and based on the data, the care recipient And a data calculating means, wherein the data calculating means detects a bed leaving prediction section detecting means for detecting that the position of the center of gravity on the bed is in a bed leaving prediction section which is a peripheral portion of the bed, and a bed leaving prediction section. In response to the output of the detection means, when the position of the center of gravity is in the bed leaving prediction section, it has a movement direction detection means for detecting the movement direction of the center of gravity, the determination means, in response to the output of the movement direction detection means,
The care support device is characterized by determining whether the detected movement direction is a predetermined direction in which the care receiver has a high probability of leaving the bed. According to the invention, FIG.
As will be described later with reference to FIGS. 8 to 32, when it is detected that the position of the center of gravity of the cared person is in a predetermined bed leaving prediction section in the peripheral portion of the bed, the direction of movement of the center of gravity is detected. When the moving direction is a predetermined direction in which the care receiver has a high probability of leaving the bed, the occurrence of bed leaving is predicted before the care receiver leaves the bed, and this is transmitted to the caregiver by the display means. To do. This allows the caregiver to provide care before the caregiver leaves the bed, which can prevent accidents such as falling of the caregiver from the bed that occur when the caregiver leaves bed, or after the bedbreak. It is possible to prevent the caregiver from falling and wandering the caregiver.

Further, according to the present invention, the bed leaving prediction section is divided into a plurality of small sections, and each of the small sections is divided into a plurality of areas which divide the direction of movement of the center of gravity in the circumferential direction. The wake-up occurrence probability ρ is set to, the determination means obtains the wake-up occurrence probability ρ in the detected moving direction based on the direction segmentation area to which the moving direction belongs, and the wake-up occurrence probability ρ in the obtained moving direction is It is characterized in that the moving direction detected when the value is equal to or greater than a predetermined value ρo is determined as a predetermined direction having a high probability of leaving the bed. According to the present invention, each sub-division is divided into a plurality of direction division areas, and the bed leaving probability ρ is set for each direction division area. Therefore, when the direction in which the care receiver moves is detected, From the direction segmentation area to which the direction belongs, the probability of bed leaving in that direction ρ
Can be asked. Also, the above-mentioned probability of bed leaving occurrence ρ
Is greater than or equal to a predetermined value ρo, it can be determined that the direction is a direction with a high probability of leaving the bed. When such a determination is made, it is assumed that bed leaving occurs as described above, and the display by the display means is displayed. Can do and raise alarms.

[0031]

In the present invention, the data calculating means further includes a bed leaving detecting means for detecting that the detected weight is less than or equal to a predetermined value Wu in which the care receiver is not present on the bed. In response to the output of the floor leaving prediction section detecting means, the number of movement times calculating means for calculating the number of times k of movement of the center of gravity in the floor leaving predicting section; The number-of-movements calculation unit and the probability calculation unit that responds to the outputs of the number-of-movements calculation unit, the number-of-beds calculation unit, and the moving-direction detection unit to calculate the probability of leaving-bed occurrence ρ (= f / k) for each moving direction of the center of gravity. Including, the determining means is responsive to the output of the moving direction detecting means and the probability calculating means, and determines whether the detected moving direction is a predetermined direction in which the care receiver has a high probability of leaving the bed. And it features.

According to the present invention, in the bed leaving prediction section,
Since the probability of bed leaving occurrence is calculated each time the center of gravity moves, it is possible to maintain the probability of bed leaving occurrence that matches the current state of bed leaving occurrence of the care recipient, compared to the case where a fixed bed leaving occurrence probability is used. . Therefore, it is possible to accurately predict the occurrence of leaving the bed, and it is possible to prevent an accident or the like due to a fall that occurs when the care receiver leaves the bed.

In the present invention, the probability calculation means is responsive to the outputs of the movement number calculation means and the bed leaving 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 caregiver f of the cared person each time the movement of the center of gravity occurs in the bed leaving prediction section. It is characterized in that the oldest combination data is sequentially erased and updated to new store contents every time it is stored.

According to the present invention, the stored contents of the memory are updated to new stored contents by sequentially erasing the oldest stored combined data every time new combined data is stored. 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.

[0036]

[0037]

[0038]

[0039]

Further, according to the present invention, the first control means is arranged in the vicinity of each bed, and the first control means includes the center of gravity calculation means,
A first detecting means for transmitting an output of the long-term care detecting means via a transmission line or a wireless means, and a second control means 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 outputs the output of the second transmission means to the display means.

According to the present invention, there is provided a first center of gravity calculation means and a care detection 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 detection elements provided on the bed can be easily wired and connected to the center of gravity calculation means, and by the care detection means of the first control means. Since it is detected that the cared person should be cared for, it is possible to reduce the calculation load of the subsequent circuit. The output of the care detection means is transmitted via the first transmission means to the second control means provided in the vicinity of the display means such as a nurse station via the transmission line or the wireless means via the transmission line or the wireless means. Then, the output of the second transmission means is displayed by the display means. The first control unit has not only the center of gravity calculation unit and the care detection unit described above, but also a first transmission unit. Here, the transmission line may be an electric wire that transmits an electric signal, or an optical fiber that transmits light. Also, the wireless means collectively represents means for transmitting data without using a transmission line, and includes radio waves, light (visible light, infrared rays,
(Including ultraviolet rays) and sound.

Further, according to the present invention, the care detecting means detects a plurality of types of care-requiring states, and the first control means indicates the 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 unit, and the second control unit displays the care state generation signal in the individual display area by the display unit.

According to the present invention, as will be described later with reference to FIG. 34, a plurality of types of respective conditions to be cared for detected by the caring detection means are displayed in the individual display area of each bed of the display means. ,indicate. In this way, each cared person can easily know what kind of state he / she should be cared for, for example, by looking at the display means at the nurse station.

Further, in the present invention, 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. Is characterized by displaying only the state to be cared for of the type selected by the selection means.

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

In another embodiment of the present invention, the selection means 84 for selecting the kind of state to be displayed as shown in FIG.
Not provided, all detected types of conditions to be cared for may be configured to 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.

The present invention is also characterized in that the bed for the care-receiver is provided with a nurse call switch, and the terminal of the nurse call switch can output the care-requiring state of the care-receiver.

According to the present invention, since it is possible to output the care-taking state of the care-receiver to the terminal of the nurse call switch, the existing transmission line can be utilized, and the hospital room and the display means of the nurse station can be used. Installation costs can be reduced because there is no need to lay a dedicated cable for connection. Even if the care receiver cannot press the nurse call switch by his / her own will, the nurse station can be notified at the timing when the condition to be cared for is detected.

[0050]

1 is a block diagram showing the overall configuration of a nursing care support apparatus 1 according to an embodiment of the present invention.
Each room 2 such as a welfare facility or a medical facility accommodates a plurality of (for example, 4) cared persons, and a cared person monitoring device 3 is provided for each cared person. Each of these cared person 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
Thus, the display means 8 displays the state of care for each care receiver from the care receiver monitoring device 3. Also, instead of the transmission line 4, a wireless means such as a wireless LA
N may be provided. The wireless means may be any of radio waves, light (visible rays, infrared rays, ultraviolet rays) and sound as described above.

FIG. 2 is a diagram showing a simplified structure 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 a plurality of (for example, 4) leg portions 12 of three or more that support 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 portion 12 of the bed 9, weight detecting elements 13a to 13 which are realized by including a load cell and the like.
d (generally indicated by reference numeral 13) are provided respectively. 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 on the wall of the bed 9, for example, on the head side. The first control means 15 is housed in the medical console 14. The output of each weight detection element 13 is given 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 above-mentioned transmission means 6 and processing means 7.

FIG. 4 is a block diagram showing the overall electrical construction of the care support device 1. The first control means 15 has a first
The processing means 18 and the first transmission means 19 are included. The first processing means 18 is realized by, for example, a microcomputer. The first processing means 18 includes the weight detection element 1
3 is given, and also output 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 is given. Further, a nurse call switch 22 which is a switch operated by a cared person or the like is provided. First processing means 1
The output of 8 and the output of the nurse call switch 22 are
It is given from the transmission means 19 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 the processing means 7 realized by a microcomputer or the like. The transmission means 6 and the processing means 7 are
Corresponding to the above-mentioned first processing means 18 and first transmission means 19, they can be referred to as second transmission means 6 and second processing means 7, respectively.

The second transmission means 6 and the second processing means 7
The second control means 16 is constituted by. The second processing means 7 is provided with the display means 8 as described above, and is provided with the other display means 23. Further, the handset 24 including the speaker and the microphone may be configured to be able to talk with each care recipient. The second processing means 7 is also provided with a memory 25, and is further connected to a printer 26 for printing the display content of the display means 8 on a 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 portion 12.

FIG. 6 is a plan view of the weight detecting element 13, and FIG. 7 is a vertical sectional view of the weight detecting element 13. The weight detection element 13 includes a load cell 29 and the load cell 29.
And a storage body 30 for storing. A recessed receiving portion 31 is formed on the top of the storage body 30. The caster 28, which is the lower portion of the leg portion 12 of the bed 9, is stably placed on the receiving portion 31. In this way, the weight of each leg 12 is converted into an electric signal by the weight detecting element 13, and passes through the joint box 17 for connection and the line 10 to make the first signal.
It is given to the processing means 18.

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

[0058]

[Table 1]

The function A1 is a function of converting the amount of electrical change of the weight detection element 13 into weight data and a function of calculating the position of the center of gravity. The function A2 is a bed leaving detection function. Function A
3 is an activity state monitoring function. The function A4 is an end seat monitoring function. The function A5 is a turning over monitoring function. The function A6 is a function for selecting the functions of the above-mentioned functions A2, A3, A4 and A5 by the function selecting means 20. Function A7
Is a function of transmitting an on / off signal that conveys that a state in which the care receiver should be cared for has been generated by the above functions A2, A3, A4, A5. The function A8 is a function of the first processing means 18 communicating 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 means 7.

[0060]

[Table 2]

FIG. 8 shows a first controller included in the first control means 15.
6 is a flowchart for explaining the operation of processing means 18. The first processing means 18 performs step a shown in FIG.
1 to a14 are executed, and the above-mentioned functions A1 to A8 are achieved by executing these steps a1 to a14. Particularly, the functions A2 to A5 are, as shown in Table 2, each step a3, a4; a6 to a8; a9, a10; a11 in FIG.
Each is achieved by ~ a13.

In step a1 to step a2 in FIG. 8, 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 ... (5)

W1, W2, W3, and W4 represent the weights of the care-receiver only measured by the four weight detection elements 13a to 13d, respectively. W1a ~ W1d
Represents the weights respectively measured by the four weight detection elements 13a to 13d, and W10 to W40 are respectively measured by the weight detection elements 13a to 13d when the care receiver is not placed on the bed 9. Is the weight. Therefore, as described above, the weights W1 to W4 are the weights of only the care receiver obtained from the weight detection elements 13a to 13d according to the weight of the care receiver when the care receiver rides on the bed body 11.

At step a3, it is checked whether the care receiver leaves the bed. When Expression 6 is satisfied, in step a4, it is determined that the care receiver has left 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 body weight considered to be out of bed.

FIG. 9 is a diagram for explaining the bed leaving detection function A2. The minimum value Wu of the weight in Expression 6 is set to 0.4 kg, for example. Weight detection elements 13a to 13d
Each weight W1 obtained only by the weight of the cared person
~ W4 is, for example, 0.0 kg, 0.01 kg, 0.0
9 kg and 0.1 kg, and therefore, the total weight W is 0.2 kg, and when the above-mentioned formula 6 is satisfied, the care receiver indicated by reference numeral 33 in FIG. It is determined in step a4 that the distance from 9 is far.

At step a5, the current position of the center of gravity (Gx, Gy) of the cared person is calculated when bed leaving has not occurred.

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

[0069]

[Equation 1]

In this way, the position (Gx, Gy) of the center of gravity G is calculated, and the above-mentioned function A1 is achieved.

FIG. 11 is a diagram for explaining the activity state of the cared person 33. At step a6, the activity state of the care receiver is calculated. The activity state indicates how much the cared person is active on the bed 9, and is the total value AL of the moving distances D of the center of gravity G in the past n seconds which is a constant time.
To calculate. This total value AL may be called an activity level. The output of each of the weight detection elements 13a to 13d is always, that is, 0.
The weight G is obtained every 0.6 seconds by sampling and detecting every 6 seconds. As the position of the center of gravity Gt at time t, (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 +
1), the distance D between the centers of gravity Gt and Gt + 1 is expressed by Equation 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 given by
When defined as 0 and Expression 11, Expression 7 and Expression 8 are expressed as Expression 12 and Expression 13, respectively. P (x) = W3 + W4 (10) P (y) = W2 + W3 (11)

[0073]

[Equation 2]

Substituting equations 12 and 13 into equation 9,
The center-of-gravity moving 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 in n seconds, for example, 3 seconds. Let s be a sampling period, for example, 0.6 seconds, and n be a multiple of an integer m of s (m = n / s).

Let AL (t) be AL up to time t,       AL (t) = D (t) + D (t-s) + D (t-2s) + ...                    … + D (t-ms)… (15) Here, D is the moving distance of the center of gravity G in s seconds.

Therefore, the total value AL at time t + s is set to AL
If (t + s), then 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 (t-s) is the moving distance of the center of gravity from time t to t-s, and D (t-2s) is time t-s.
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 state of the cared person 33 can be monitored by the change amount of 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 a predetermined value range that is a normal activity state of the care receiver. This predetermined range of values is equal to or less than the predetermined value AL2, and other predetermined values AL.
The range is 1 or more, and is 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, and is the value for determining that an overactive 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 determining that the inactivity state has occurred. When the expression 17 is not satisfied, that is, when the total value AL exceeds a predetermined value AL2 (AL> AL2), it means that the cared person is in an agitated state, and the total value AL is another predetermined value AL1. When less than (AL <
AL1), for example, it is determined that the cared person is in an abnormal state in which he / she has not been turned over at all, and has low activity. In this way, when the above-mentioned formula 17 is not established, it is determined in step a8 that the activity state is abnormal.

At step a9, the caregiver's end seat is checked. When it is determined that the position (Gx, Gy) of the center of gravity G is sitting at the bed edge, which is the peripheral portion of the bed 9, in step a10, it is determined whether or not an edge seat is generated. X1 <Gx <X2 (18) Y1 <Gy <Y2 (19)

Coordinate X on the X-axis in equations 18 and 19
1, X2 and Y-axis coordinates Y1, Y2 are the same as those in FIG.
It is a coordinate position indicating the range of occurrence of the end seat 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 the equations 18 and 19 are not satisfied, the end seat occurrence is detected. In the plan view of the bed 9 in FIG. 12, the center of gravity G
The position of 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 of the center-of-gravity position 36 is displayed so that it becomes the past center-of-gravity position every n seconds. As a result, the caregiver looking at the display means 8
The moving state of the center of gravity G of the patient 33 can be easily known over time.

As shown by the reference numeral 35, the position of the center of gravity is
It is within the end seat generation range 34, that is, the above-described equations 18, 1
When 9 are satisfied at the same time, it can be determined that the patient 33 is sitting on the edge of the bed, which is the peripheral portion of the bed 9, and care is required. The time when the position of the center of gravity enters the end-seat generation range 34 is detected by the clock means, and when the detected time is midnight, the care-receiver is in the awake state even when he / she is sleeping. It is presumed that this is an abnormal state, and the cared person needs care.

At step a11, the caregiver's turning over situation is calculated. The total value GM of the moving distances D, which is the moving amount of the center of gravity G for each M time (for example, 2 hours), is calculated. At step a12, it is judged based on the equation 20 whether or not a turning over support request is generated. GM <G0 (20)

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

FIG. 13 is a diagram showing a state in which the cared person 33 is turning over on the bed 9. When the cared person 33 is rolling over on the bed 9 on a regular basis, and when the center of gravity is moving due to this, it is determined that rolling over is being performed, and the center of gravity G is as described above. When the person does not move for a certain period of time M, it is judged that turning over is necessary. In this way, the caregiver can perform care that is suited to the condition of the care receiver 33 without being bound by the position change schedule of the care receiver 33, and when the care receiver 33 is rolling over by himself. The caregiver no longer needs to have the caregiver 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,
The states detected in a10 and a13 are
It is transmitted from the first transmission means 19. The above-mentioned respective states are the occurrence of getting out of bed, the abnormal activity state, the occurrence of end sitting, and the occurrence of a turning over 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.

At step a11, the total value GM to be counted is reset to zero at the start of turning over calculation and every time M time has elapsed. After starting the turnover situation calculation in step a12, it is checked every M hours whether Expression 20 holds.

FIG. 14 is a diagram showing the structure of the 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 the occurrence of leaving the bed detected in step a4 of FIG. 8, and an abnormal activity state in step a8. A signal 40 representing the generation of the end seat detected in step a10 and a signal 42 representing the generation of the turning over support request detected in step a13 are included, and further the signal of the coordinate position (Gx, Gy) of the center of gravity G. 43
including.

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

[0094]

[Table 3]

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

The first to fifth forms of implementation in Table 3 correspond to the first to fifth forms of implementation described in Table 1, respectively. The function B1 in Table 3 is a function of receiving the signal 37 from the first control means 15. Function B2 is the first
It is a function of displaying each state according to the signal 37 of the control means 15 on the display means 8. Each of these states is the occurrence of getting out of bed, the abnormal activity state, the occurrence of end sitting, and the occurrence of a turning over support request. The function B3 is a notification selection function, that is, a function of displaying only the selected state among the states represented by the above-mentioned function B2 transmitted from the first control means 15. In order to make this display selection, the second processing means 7 is provided with a notification selection means 84 (see also FIG. 33). The function B4 is a function of displaying the current position of the center of gravity of the care receiver on the bed 9. The function B5 is a function of storing the position data of the center of gravity of the care receiver on the bed 9 in the memory 25, storing the position data, and displaying the stored position data on the display unit 8. The function B6 stores, in the memory 25, the history of each of the cared persons, that is, the occurrence history of occurrence of getting out of bed, abnormality of activity state, occurrence of end sitting, and occurrence of turning over support request, and the stored contents are displayed on the display means 8 It is a function to display by. The function B7 is a function of automatically extracting the activity pattern of the care receiver. Function B8 registers the normal activity pattern of the cared person in advance, and when an activity pattern different from the normal activity state occurs, the display means 8 causes
It is a function that displays that fact and issues an alarm. Function B
9 is the position of the center of gravity G on the normal bed 9 of the cared person (G
(x, Gy) is stored in the memory 25 in advance and registered, and when it is different from the position of the normal center of gravity G, this is displayed by the display means 8 and an alarm is issued. Function B10
Extracts the characteristics of the bed leaving pattern based on the position information of the center of gravity G of the cared person, stores and stores the characteristics of the bed leaving pattern in the memory 25, and stores the position information of the center of gravity G up to the present and the bed leaving pattern. It is a function that collates and predicts leaving the bed.

FIG. 15 is a flow chart for explaining the operation of the second processing means 7 included in the second control means 16. From step b1 to step b2, data communication is performed. This data communication is reception of information indicating the coordinates (Gx, Gy) of the center of gravity G and the activity state of the care receiver. The active state is getting out of bed, abnormal activity state, occurrence of end sitting, and request for turning over to turn over. In another embodiment of the present invention, the second processing means 7 controls the coordinate position (G
(x, Gy) may be received from the first processing means 18, and the active state arithmetic processing may be performed thereby.

At step b3, the second processing means 7 responds to the signal indicating the activity state at the above-mentioned step b2, and when it is detected that the person is getting out of bed, the activity state is abnormal, the end sitting is generated, or the turning over support request is generated, step b4. At, the occurrence status is displayed for each bed 9.

At step b5, the activity state 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 prediction of leaving the bed 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. Notification display selection screen 50
Are 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. A patient represents a cared person.

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

FIG. 18 is a diagram showing a bed-specific display screen 49 for each caregiver. The current position of the caregiver's center of gravity G, the activity level AL, the weights W1 to W4 measured by the care receiver's weight detected by the weight detection elements 13a to 13d for each leg 12 of the bed 9, and the state to be cared for occurs. Whether or not, for example, in this embodiment, the occurrence of the end seat and the occurrence time thereof are displayed. Center of gravity of cared person G
The position of 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 as the latest coordinate position.
In addition, a plurality of predetermined past positions are indicated by a black circle 68 having a small diameter, and thus the diameter of the black circle is reduced and displayed in the past. This makes it possible to know the movement progress of the center of gravity over time.

FIG. 19 is a diagram showing the notification display selection screen 50. On the screen of the display means 8, for example, a transparent touch panel which constitutes the display selection means 46 is arranged, and selection input operation is possible. As a result, it is possible to select whether or not to display on the display means 8 by selecting the types of states to be reported, such as leaving the bed, abnormal activity, end sitting, and turning over support request.

FIG. 20 is a diagram showing a patient-specific notification history display screen 51. For each bed of the cared person, the occurrence state of the state 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 notification history display screen 51. The types of states to be cared for in each bed of the cared person are counted and displayed on a monthly basis, for example. The states to be cared for are displayed in mutually different colors, so that the caregiver can easily distinguish them visually.

FIG. 22 is a diagram showing a patient-specific movement history display screen 52. The movement status 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 diagram showing a patient-specific database screen 53 displayed by the display means 8. For each bed 9 of the care receiver, the type and the number of occurrences of the state to be cared for are displayed, for example, every month to obtain the report history information 91, the activity pattern 72, and the position of the center of gravity G on the bed 9. The analysis results such as 73 and the bed leaving pattern 74 are displayed.

By achieving the report history management function shown in FIGS. 20 to 23 by the second processing means 7, each state to be cared for, for example, bed leaving, abnormal activity state, edge sitting, turning over. The situation of generation of the support request is stored and saved in the memory 25, and the caregiver input means 8
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 according to the instruction from the printer 9 and can be printed on the 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 for each care recipient, and it becomes easier to understand the characteristics of care for each care recipient. Therefore, it is possible to provide an environment in which it is easy to provide care suitable for each care recipient.

FIG. 24 is a flow chart showing the operation state monitoring operation of step b5 in FIG. 15 of the second processing means 7 more specifically. In monitoring the activity state of the cared person, in steps c1 to c2 to c4, the functions B7 and B8 of the activity pattern described with reference to Table 3 above are executed. In steps c5 to c7, the 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, the function B10 relating to the leaving prediction according to the leaving pattern is executed. By monitoring the activity status of the care recipient, it is possible to perform care according to the situation of the care recipient at an appropriate timing and reduce the burden of care work for the care recipient. .

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

At step c3, it is judged whether or not the current activity pattern is different from the previously registered normal activity pattern. When it is determined in step c3 that the care recipient's current activity pattern is different from the pre-registered normal activity pattern, the next step c4
Then, it is judged that some kind of abnormality has occurred in the cared person, and the display means 8 issues an alarm. Some abnormality is, for example, rubbing of the care recipient on the floor, excretion on the bed 9, or the like. 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 flow chart for explaining the operation of extracting and calculating the activity pattern of the care receiver by the second processing means 7 in step c2 of the care receiver in FIG. In step d2, the timekeeping operation of the timer provided in the second processing means 7 is started, and the predetermined time W1 is measured. From the movement of the center of gravity G of the cared person for each predetermined time W1 in this way, as shown in Table 4, the movement amount in step d3, the number of exercises in step d4, and the exercise speed in step d5 are obtained.

[0113]

[Table 4]

The exercise amount is the sum of the distances D of the center of gravity of the care receiver on the bed 9 within a predetermined time W1. The number of exercises is counted as one time from when the center of gravity G starts to move on the bed to when the center of gravity G stops moving, and means the number of times. Stopping the movement of the center of gravity means that the movement of the center of gravity is a predetermined time,
For example, it means a state in which there is no 0.5 second. The movement speed is the movement speed of the center of gravity G on the bed 9 from when the center of gravity G starts moving to when the center of gravity G stops, and is obtained by dividing the moving distance of the center of gravity G by the moving time. The moving distance of the center of gravity G is the sum of the moving distances of the center of gravity at each time from the start of the moving of the center of gravity to the stop of the moving of the center of gravity, and the moving time is the total of the time required for moving at each time. Thus, at each time W1,
The movement amount, the number of movements, and the movement speed are calculated and detected, 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 by a plurality of (for example, 3) predetermined discrimination levels, and the analysis result that the momentum is high, normal and low can be obtained. In step d8, the number of exercises is level discriminated by a plurality (for example, 3) of predetermined discrimination levels, and is classified as frequent activity, normal activity, and infrequent activity. Step d
In 9, the velocity of motion is level discriminated at a plurality (eg, 3) of predetermined discrimination levels, categorized as fast moving, normal moving, and slow moving.

At step d10, the above-mentioned step d7 is performed.
Based on the analysis results of the amount of exercise, the number of times of exercise, and the rate of exercise obtained at d9, total 2 shown in Table 5, for example.
7 activity patterns are calculated and obtained. Levels of exercise amount, number of exercises, and exercise speed 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 activity state for each hour is analyzed, and the activity pattern for each hour from 0:00 to 24:00 is calculated for each care recipient. In step d11, the current activity pattern calculated by the care-receiver is compared with a pre-registered normal activity pattern, and it is determined in step d12 that the comparison result is different,
The cared person is determined to need care. When care is required, the display means 8 displays that the care receiver should be cared for in step d13. Thus, in step d14, a series of operations ends.

[0117]

[Table 5]

In order to achieve the aforementioned function B9 relating to the position of the center of gravity G on the bed 9 of the care-receiver, 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 it is different from the normal position of the center of gravity G. 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,
In step c7, an alarm indicating that the position is abnormal is generated, and the display means 8 displays that the care receiver should be cared for.

FIG. 26 shows the center of gravity G on the bed 9 of the cared person.
FIG. 9 is a simplified plan view of the bed body 11 of the bed 9 for achieving the function B9 regarding the position of FIG. 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 cared person.
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
To 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
The position of the center of gravity is detected from the signal representing the position. At step e4, it is judged whether or not a predetermined time W2 has elapsed, and in this way, the center of gravity G is determined at each predetermined time W2.
The position of is detected. The time W2 may be the same as the above-mentioned time W1, for example, and may be one hour, for example.

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 compared whether or not the section 71, which is the movement area of the care-receiver in the predetermined time W2 obtained in this way, is different from the previously registered normal position. The normal position registered in advance is a section where the care-receiver is normally in a normal state among the sections 71 of the bed 9 in FIG. This section is a section to which the position of the center of gravity within a certain period of time, which is predetermined by the cared person in a normal state, belongs, and grasps the normal activity range of the cared person.

At step e7, it is judged that the partition 71, which is the moving 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 partition 71 for caring for the care receiver. When it is done, it is judged 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, when there is no cared person in the section 71 where the cared person should normally be, there is a possibility that the cared person has an abnormality, and this abnormality can be detected and notified to the caregiver. This makes it possible to protect the cared person at an early stage. The position of the center of gravity G on the bed may be analyzed, for example, every hour that is a predetermined time W2, and the section 71 to which the hourly position from 0:00 to 24:00 belongs may be obtained.

Function B10 of predicting bed leaving by bed leaving pattern
In order to achieve the above, in step c8 of FIG. 24, the bed leaving prediction is performed based on the probability that the care receiver leaves the bed 9. When 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 and displayed by the display means 8 in step c10.

FIG. 28 shows the above-mentioned function B regarding prediction of leaving the bed.
FIG. 25 is a simplified plan view of the bed 9 for explaining steps c8 to c10 of FIG. 24 for achieving 10; By analyzing the position data of the center of gravity G when the caregiver leaves the bed 9 at the time of bed leaving and extracting the characteristics of the bed leaving pattern, it is possible to predict the bed leaving occurrence before the care receiver leaves the bed. Thus, the prediction of leaving the bed can be transmitted to the caregiver by displaying it on the display unit 8. Therefore, the caregiver can take care of the caregiver on the bed 9 before the caregiver leaves the bed. This makes it possible to prevent an accident such as a fall of the care receiver from the bed 9 that occurs when the care receiver leaves the bed, and prevent the care receiver from falling or wandering after leaving the bed. Can be prevented.

Bed main body 1 of bed 9 for predicting leaving 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 and a bed leaving prediction section 74 which is a peripheral section of the bed 9, and a bed which is an outer peripheral section of the bed leaving prediction section 74. It is divided into a total of three parts 73, 74 and 75 with the end seat detection section 75 which is the peripheral part of 9. FIG. 28
The end-seat detection section 75 in FIG. 12 may be the same as or different from the end-seat generation range 34 described above with reference to FIG.

FIG. 29 shows the above-mentioned function B regarding prediction of leaving the bed.
25 is a flowchart for explaining a specific operation of the second processing means 7 that executes steps c8 to c10 of FIG. The process moves from step f1 to step f2, and the center of gravity G of the care receiver is predicted to leave the floor by the signal 43 indicating the position of the center of gravity G of the care receiver contained in the signal 37 from the first processing means 18. It is determined whether or not it is in the partition 74. When the center of gravity G exists in the bed leaving prediction section 74, the moving direction of the center of gravity G of the care receiver is detected in step f3. In step f4, a predetermined probability that the cared person will leave the bed is calculated and calculated in accordance with 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 of the care receiver in the bed leaving prediction section 74 on the bed 9. The normal position 73 is a section where the cared person 76 normally exists. Bed leaving prediction section 7 which is the outer peripheral portion of this 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 small section 77 shown in FIG.
FIG. 6 is a diagram showing a region that divides a center-of-gravity movement direction in FIG.
The moving direction of the center of gravity is defined by an angle θ formed by the X-axis and a straight line connecting the pre-movement position G1 of the center of gravity and the post-movement position G2 of the center of gravity. The moving direction θ of the center of gravity is obtained by converting the coordinates of G1 and G2 into (X11, Y11), (X12, Y1), respectively.
2), it is calculated by the equation 21. θ = tan−1 (Y12−Y11) / (X12−X11) (21)

Each small section 77 is divided into a plurality (for example, 8 in this embodiment) of the center-of-gravity movement direction in the circumferential direction (hereinafter referred to as direction division areas) I to VIII. In the present embodiment, the direction segmentation area is divided into 8 segments every 45 degrees in the angle range 0 to 360 degrees of θ as shown in FIG. The direction division area may be divided into other than eight divisions.

After detecting the moving direction θ of the center of gravity G of the cared person in step f3 of FIG. 29, in step f4, the movement division regions I to VIII to which the moving direction θ of center of gravity belongs.
Then, according to Table 6, the bed leaving probability ρ is detected. The bed leaving probability ρ is set by preparing Table 6 for each of the plurality of small sections 77 existing in the bed leaving predicted section 74.

In Table 6, the probability of bed leaving occurrence ρ is preset for each cared person for the direction division regions 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 9 without moving to another place. The probability of leaving the bed ρ is k, which is the number of times the center of gravity has moved to a certain small section 77 from a certain direction, and the center of gravity moves to a certain small section 77 from a certain direction, and the other bed 9
Assuming that the number of times of leaving the bed without moving the center of gravity to the upper position is f, it is calculated by the formula 22. ρ = f / k (22)

[0132]

[Table 6]

At step f5, it is judged whether the obtained leaving probability ρ is greater than or equal to a predetermined value ρ0 set by the caregiver (ρ ≧ ρ0). When the bed leaving probability ρ is higher than a predetermined value ρ0 and is high, it is determined that the center of gravity moving direction is a predetermined direction with a high bed leaving probability. In step f6, the bed 9 of the cared person
Indicating that there is a possibility of getting out of bed
To display an alarm. In this way, when the center of gravity moves to a certain small section 77 from a certain moving direction θ, the probability ρ of leaving the small section 77 is obtained, and if the probability ρ is high and the occurrence of bed leaving is predicted, Is displayed by the display means 8. For example, when the caregiver presets the value ρ0 of the probability of leaving the bed to be ρ0 = 0.65, the direction of movement of the center of gravity θ (0 degrees to 135 degrees) belonging to the direction division regions I to III of Table 6 in a certain small section 77. Only when the center of gravity moves from (degree), the display means 8 gives a warning of the prediction of bed leaving occurrence.

FIG. 33 is a diagram showing a display screen 78 of the display means 8 in the third embodiment of the invention shown in Table 1 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,
Each display area 79 to 82 for occurrence of end sitting, occurrence of activity abnormality, and occurrence of turning over support request is set. Further, in this embodiment, the display screen 78 of the display means 8 is provided with an input means such as a transparent touch panel, and the bed selection switch 8
The bed 9 is selected by 3, and the notification selection switch 84 can be used to select one or more of the four states of the selected bed 9 to be cared for. In this way, when the selected care state for 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 unit 8. Therefore, the caregiver can know in advance the care-requiring condition of the care-receiver, which facilitates the care-preparation.

In another embodiment of the present invention, the notification selection switch 84 is provided in association with the second control means 16 instead of the function selection means 20 of the first control means 15 for each bed 9. You may be made to be able to select each state of the cared person who should make such a report.

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

FIG. 35 is a diagram showing a display screen 78 of the display means 8 in the fifth embodiment of the 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 provided in the individual area 56 corresponding to the bed, as indicated by reference numeral 86. Reference numeral 86 is
Corresponding to the bed, when one of the above-mentioned four states to be cared for occurs, the display form changes, for example, the color, the brightness, etc. change, or the display is made by characters or the like. Good.

In the present invention, the first transmission means 19 of the first control means 15 includes, for example, a single transmission line 4 or a single transmission line 4.
Is connected to the second transmission means 6 of the second control means 16, and thus a nurse call switch 22 is provided for each bed. The present invention is carried out in an existing building in which these nurse call switches 22 are connected to the nurse station 5 via the transmission line 4, without performing wiring work in a large building. There is an advantage that you can.

As described above, the normal activity pattern of the cared person is registered and set in advance by manual input by the carer. Further, this normal activity pattern is fixedly used without being changed so much once it is set because the caregiver is busy. The normal activity pattern of the cared person is not fixed in nature and changes over time, so 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, an activity pattern calculation means automatically sets a normal activity pattern of the care recipient, and further sets it to the latest activity pattern of the care recipient. You may make it change regularly based on.

FIG. 36 is a flow chart for explaining the operation of the activity pattern calculation means related to the automatic setting of the normal activity pattern of the care receiver. Steps g1-g
8, the activity pattern of the cared person is step d in FIG.
Similar to 1 to d10, it is obtained for each W1 hour based on the calculated detection values of the exercise amount, the number of exercises, and the exercise speed, and stored in the memory 25. In step g9, it is determined whether the predetermined number of days D1 has elapsed. W1 is, for example, 1 hour, and D1 is, for example, 14 days. If this determination is affirmative and D1 days have passed, the process moves to step g10. In step g10, the normal activity pattern of the care receiver during D1 days is calculated as follows.

(1) Storage areas P1 (d, w, r), P2 (d, w, k), P3 (d, of the caregiver's activity pattern)
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 care receiver 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 times of exercise, and P3 is for storing the speed of exercise. Further, d represents the day and w represents the time. The range of time w is 1 to (24 / W
1). In addition, r, k, and s are the momentum per hour of W,
The analysis results of the number of exercises and the exercise speed are shown.

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

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

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

(5) From M1, R1, and S1 thus obtained,
Levels of the amount of exercise, the number of exercises, and the rate of exercise are defined based on Table 4, and the corresponding activity pattern is calculated from the total of 27 activity patterns shown in Table 5, and the obtained activity pattern is cared for. Set as a normal activity pattern of the person.

The respective average values are obtained by the average value calculating means. Further, each average value may be an addition average as described above, or may be a weighted average in which a larger weight is added to the new data for calculation.

[0147]

[Equation 4]

FIG. 37 is a flow chart for explaining the operation of the activity pattern calculation means relating to the change of the normal activity pattern of the care receiver. In steps h1 to h8, the activity pattern of the care receiver after the lapse of D1 day is obtained for each W1 hour based on the calculated detection values of the amount of exercise, the number of exercises, and the exercise speed, as in steps g1 to g8 of FIG. Memorized in. In step h9,
It is determined whether the predetermined number of days D2 has passed.
D2 is D1 or less, for example, 2 days. If this determination is affirmative and D2 days have passed, the process moves to step h11. At step h11, the normal activity pattern is changed as follows.

(6) Of the data of the activity state of the care-receiver for D1 days, which is held, the oldest data of D2 days for every W1 hour is deleted.

(7) Based on the total data of D1 days based on the data of the activity state for the remaining (D1-D2) days and the new data of D2 days after the D1 day, the same method as shown in FIG. 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 cared person with the latest normal activity pattern calculated in this way to determine whether or not the cared person needs to be cared for. To 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 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, the caregiver does not need to observe and analyze the activity status of the cared person, and the burden of data input to the busy caregiver can be eliminated. At the same time, it is possible to obtain an objective activity pattern of the cared person. Furthermore, since the normal activity pattern is calculated by incorporating the latest activity pattern of the cared person, the normal activity pattern can be always 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 to monitor the long-term tendency of the activity status of the cared person. You may do it.

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

As described above, by comparing the latest normal activity pattern with the past normal activity pattern, it is possible to monitor long-term changes in the activity pattern of the cared person, which are difficult to understand in daily care. Becomes If there is a change in the normal activity pattern of the cared person, it is considered that the cared person has some abnormality. For example, when the normal activity pattern is changed from "normal" to "low", it is considered that the physical strength is decreased. On the contrary, the amount of exercise is “normal” to “large”
When the normal activity pattern is changed, it is considered that the excited state or the like is continuously occurring. By notifying the caregiver that the normal activity pattern has changed, it becomes possible to give the caregiver the timing to change the care policy of the care receiver at an early stage. As a result, it is possible to always provide nursing care suitable for the cared person.

As described above, the probability of occurrence of leaving the caregiver ρ
Are determined according to Table 6. In Table 6, areas for dividing the moving direction of the center of gravity for each of the small sections 77 (direction dividing areas)
The correspondence between I to VIII and the probability of bed leaving occurrence ρ is preset. Although this correspondence has been used fixedly until now, the activity state of the care-receiver changes with time, and therefore, as another embodiment of the present invention, the shift of the center of gravity from the probability of leaving the bed occurs. It may be recalculated for each time, and the probability of bed leaving occurrence ρ that always matches the latest state of the care-receiver may be held.

FIG. 39 is a flow chart for explaining a method of recalculating the bed leaving probability ρ. From step j1 to step j2, it is determined whether or not the current center-of-gravity position is within the bed leaving prediction section. This determination is made based on the output of the bed leaving prediction section detection means. If this judgment is affirmative, the routine proceeds to step j3, where it is judged if the movement of the center of gravity has occurred. If this determination is affirmative, the routine proceeds to step j4, where the number of movements k of the center of gravity in the predicted bed leaving section is calculated by the number of movements calculation means, and the moving direction of the center of gravity is detected by the movement direction detection means.

At step j5, it is determined whether or not bed leaving has occurred. This determination is made based on the output of the bed leaving detecting means. If the determination in step j5 is affirmative, the process proceeds to step j6, and if not, the process proceeds to step j7. In step j6, the number of times of leaving the caregiver f is calculated by the number of times of leaving the bed calculation means, and the probability of leaving the bed in the moving direction of the center of gravity in the small section in which the center of gravity exists is recalculated as described later. At step j7, the bed leaving probability ρ in the moving direction of the center of gravity in the small section before the center of gravity moves is recalculated as described later.

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

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

(B) Each time the center of gravity moves in the bed leaving prediction section, the combination data of the number of times k of movement of the center of gravity and the number of times of leaving the caregiver f is sequentially stored in the memory 25. The maximum number of times of the combination data stored in the memory 25 is predetermined. (5 in the present embodiment) The memory sequentially erases the oldest combination data every time the combination data exceeding the maximum number of times is newly stored and updated to new stored contents.

(C) The number of times k of movement of the center of gravity and the number of times of leaving the caregiver f are read from the memory 25.

(D) The leaving 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 the direction division area, and P
Reference numerals 1 to P8 denote storage areas corresponding to the direction division areas I to VIII, respectively. x and y represent the address of the small section. 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 3, k = 3, and when the number of movements of the center of gravity is 5 or more, k = 5. f represents the number of times of bed leaving that occurred during the past k times of moving the center of gravity. d1, d2, d
3, d4, d5 are one before, two before, three before, four before, 5
The presence / absence of bed leaving at the time of moving the center of gravity immediately before is represented by 1: Bed leaving / 0: Bed leaving not occurring. A calculation example is shown below.

(Calculation Example 1) When the center of gravity moves to the small section (1, 2) from the direction belonging to the direction section area II, the content of the storage area P2 is 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 stored content of P2 in the initial state is P2. If (1, 2, 4, 3, 1, 0, 1, 0, 1), the stored content of P2 after the center of gravity shifts is 0 indicating that there is no getting out of bed, and d2 to d5 indicate the initial state. d1 to d4 is 1
Since they are shifted one by one, P2 (1, 2, 5, 2, 0,
1,0,1,0) and f = 2 and k = 5, so ρ
= 2/5 = 0.4. The d5 in the initial state is erased.

(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 content of P2 in the initial state is P2 (1, 2,
5, 2, 0, 1, 0, 1, 0), the stored content of P2 after the movement of the center of gravity is 1 indicating that there is leaving the bed, and d1
Since d1 to d4 in the initial state are shifted one by one into 2 to d5, P2 (1, 2, 5, 3, 1, 0, 1, 0, 1) is established, and f = 3, k = 5. Therefore, ρ = 3/5 = 0.6. The d5 in the initial state is erased.

In the present embodiment, the determining means determines whether or not the moving direction of the center of gravity is a predetermined direction with a high leaving probability based on the leaving probability ρ recalculated 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 erased and the latest data is adopted to recalculate the abnormality occurrence probability.
A state suitable for the current situation can be maintained at all times. As a result, the probability of leaving the bed that matches the current state of leaving the bed of the cared person can be maintained at all times, 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 and 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 condition for caring for a cared person occurs, in other words, an abnormality such as getting out of bed, end sitting and abnormal activity state occurs, this is indicated by the display means. It is displayed and care is given early.
The display content of the display means includes an abnormality occurrence display, a notification history display and a movement history display, but does not include an abnormality occurrence cause display. When the cause of the abnormality is displayed, the treatment necessary for nursing care can be prepared even earlier, so 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 flow chart for explaining a method of searching for the cause of occurrence of an abnormal endor or active state. The process moves from step k1 to step k2, and it is determined whether an end seat or an abnormal activity state has occurred. This determination is made by the end-seat detecting means or the active state detecting means, and if so, the process proceeds to step k3. Step k3
In the memory 25, the occurrence time of the edge seat or the abnormal activity state and the occurrence position on the bed are stored in the memory 25. Next step k4
Then, the amount of exercise, the number of times of exercise, and the rate of exercise for W3 hours before the occurrence of abnormality or end sitting are analyzed and stored in the memory 25. The W3 time is predetermined and is, for example, 3 minutes. The time of occurrence, the position of occurrence, the amount of exercise, the number of times of exercise, and the speed of exercise are calculation data related to the activity pattern of the care receiver, and are obtained by the data calculating means.

At step k5, this newly stored operation data is compared with the operation data stored before it, and at step k6 it is judged whether or not they match. The latter operation data that has already been stored is operation data related to a standard activity pattern at the time of occurrence of an end point or activity state abnormality, and is stored for each cause of occurrence of the end point or activity state abnormality. The standard activity pattern is composed of calculation data of time of occurrence, place, amount of exercise, number of exercises, and exercise speed, and the method of creating the standard activity pattern is described later. It is said that the new calculation data and the calculation data of the standard activity pattern match when all the conditions shown in Table 7 are satisfied, and both have a predetermined relationship. Steps k5 to k6 are performed by the relevance calculation means. If the determination in step k6 is affirmative, the process proceeds to step k7.

[0174]

[Table 7]

At step k7, the cause of occurrence corresponding to the relevant standard activity pattern is read out from the memory, and a signal indicating the cause is sent to the display means to inform the caregiver of the cause of abnormal end point or activity state. . Step k7
Is performed by the occurrence cause search means. If the caregiver determines that the cause of occurrence is appropriate, step k8
To step k9, a series of processes for creating a standard activity pattern is started. In step k9, the caregiver sets the cause of the new end seat or the abnormal activity state in the memory 25 via the cause data input means. At step k10, the time, place, amount of exercise, number of times of exercise, and exercise speed at the time of occurrence of abnormal end or activity state and the set cause thereof are sequentially stored in pairs. This processing is performed by classifying the activity data that satisfy all the conditions shown in Table 8 as the same as shown in Table 9 and storing them in the memory in the form of a table. The activity data is stored for the past N1 times by cause. N1 is 100, for example. Therefore, when the number of abnormalities to be stored exceeds N1, the oldest abnormality is erased, the latest abnormal data is stored, and the 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 the abnormal endor or activity state is analyzed, and at step k1.
In 2, a standard activity pattern is created from activity data when the cause of occurrence is the same or when activity status abnormality occurs. The standard activity pattern is created based on Table 9 by selecting the category with the largest number of activity data for each cause, and when the number of activity data belonging to that category is a% or more of the total activity data, the activity pattern is created. Is the standard activity pattern.
The a% is, for example, 30%, and the caregiver sets this value for each care recipient. When 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. In 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 for searching the cause of occurrence of leaving the bed. Since steps m1 to m15 of this flowchart are similar to steps k1 to k15 of the flowchart shown in FIG.
Only the differences are described, and the description of the rest is omitted. Figure 4
1 is different from FIG. 40 only in that the generation position is not used as activity data in FIG. 41.

As described above, the conditions (occurrence time, etc.) at the time of leaving the bed, the end seat and the abnormal activity state, the characteristics of the activity data before the occurrence (exercise amount, the number of exercises, the exercise speed) are the causes of occurrence at that time By associating them with each other, it is possible to infer the causes of bed leaving, end seating, and activity state abnormality that occurred in similar situations. As a result, for a cared person whose situation similar to that at the time of the occurrence of an abnormality has occurred in the past and the cause has been identified, the cause of the abnormality can be transmitted to the caregiver when the abnormality occurs. It will be possible.
As a result, it is possible to prepare for necessary treatment at the stage of occurrence of abnormality and reduce the burden of caregiver's care work.

For example, when a cared person who has a high probability of having an abnormal activity state due to urination at 0:00 to 1 o'clock has an abnormal activity state at 0 o'clock to 1 o'clock, the characteristics of the activity data immediately before the occurrence indicate that If the cause can be identified as "urination",
Communicate information such as "urination occurrence" to the care recipient. This allows the caregiver to prepare for urination treatment and care for the care recipient.

In this embodiment, the time of occurrence, the place of occurrence, the amount of exercise, the number of times of exercise, and the speed of exercise are used as the calculation data, but the present invention is not limited to this, and other items may be added. You may reduce the number of items.

In still another embodiment of the present invention, a mobile terminal 88 such as a mobile phone (see FIG. 1) is prepared. A caregiver carries these mobile terminals 88. When the caregiver is performing care work for the care receiver, there is a risk that the caregiver will not be present at the nurse station 5 provided with the display means 8. Even in such a case, in order to reliably transmit the alarm and the care support information to the caregiver, the second processing means 7 provides the warning 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.

Further, according to the present invention, a plurality of weight detecting elements provided in the lower part of the bed for the care-receiver for detecting the weight and the position of the center of gravity of the care-receiver on the bed are responsive to the outputs of the weight detecting elements. A center-of-gravity calculating means for calculating and a data calculating means responsive to the output of the center-of-gravity calculating means for calculating data relating to the position of the center-of-gravity over time, and responsive to the output of the data calculating means Responding to the output of the determination means and the determination means for determining whether to care for the person,
It is a care support device characterized by including display means which displays that a cared person should be cared for.

According to the present invention, depending on the activity status of the care receiver, the care support status for caring for the care receiver can be displayed and notified at the timing when the care is required.
According to the present invention, the weight can be detected by the plurality of weight detection elements provided at the bottom of the bed, and the weight of the care receiver on the bed can be detected by the weight detection element. Calculate and calculate the position of the caregiver's center of gravity,
The data calculation means calculates data relating to the position of the center of gravity with the lapse of time, based on this data, the judgment means judges whether or not to care for the care receiver, and the judgment result is displayed by 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 within a plane including the bed upper surface can be calculated and obtained.
In this way, grasp the activity status of the cared person in real time,
Obtaining nursing care support information according to the activity status, an alarm can be generated by the display means at a nurse station of a medical facility, for example, a hospital. This should also be performed at welfare facilities and homes. You can

The weight detection element can be realized in a relatively small size and is therefore inconspicuous. For the elderly with dementia, it is not preferable to place objects that are different from the daily life around them, and this interferes with care work. From this viewpoint, a weight detection element having an inconspicuous structure is preferable.

According to the present invention, the weight is detected by the plurality of weight detection elements provided in 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 on the bed is calculated, and the data regarding the position of the center of gravity with the passage of time is calculated by the data calculation means, and based on this data, it is determined whether or not the care recipient should be taken care of, and by the display means. , It is displayed that the cared person should be cared for, so the activity status of the cared person can be monitored and grasped in real time, automatically analyzed, and the caregiver who is a caregiver can be present at the cared person. It is possible to surely detect that the patient should go and give care, and display an alarm or the like, and thus, appropriate care can be given.

Further, according to the present invention, a plurality of weight detecting elements provided at the bottom of each of the plurality of care receiver beds for detecting the weight, and responding to the outputs of the weight detecting elements, the care receivers of the respective care persons on the beds are provided. A center of gravity calculating means for calculating the position of the center of gravity, a care detecting means for detecting that the care receiver should be in a care state in response to the output of each center of gravity calculating means, and an individual display area 56 for each bed. And a display unit for displaying a state corresponding to a bed to be cared for in each individual display area.

According to the present invention, the position of the center of gravity on the bed of each of the plurality of cared persons is calculated, and the care detecting means detects that each cared person should be cared for. , Is displayed by a display means installed in a room where a caregiver is present, such as a nurse station.
This display means has an individual display area for each bed.
As shown in FIG. 7 and FIGS. 33 to 35, it is possible to display the states in which the care receiver should be cared for each bed. 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 where he / she should be cared for, and the individual display area for each cared person is displayed. Since I made it possible to display,
A caregiver can easily perform care work for each of a plurality of care receivers.

Further, according to the present invention, the care detecting means detects that the detected weight is less than or equal to a predetermined value Wu in which the cared person is not on the bed, and a predetermined time period. Active state detecting means for detecting that the total value AL of the distances D in which the center of gravity moves on the bed within n is outside the range of a predetermined value which is the normal state of activity of the care-receiver, and the center of gravity on the bed. Is detected in the end-seat detection section that is the peripheral part of the bed, and the total value GM of the distances that the center of gravity moves on the bed within the predetermined time M, the care receiver turns over. It is characterized by having at least one of a turning over support detecting means for detecting that the value is less than a predetermined value G0 to be set.

According to the present invention, the state of caring for the cared person is, for example, at least one of leaving the bed, active state, end sitting, and turning over support request, and may be plural.

With regard to leaving the bed, a cared person such as an elderly person on the bed determines that it is dangerous when leaving the bed, and an alarm can be issued by the display means. For example, four weight detecting elements are provided for each bed, and the weight of the bed is 0.
When switching every 15 seconds, 0.
In 6 seconds a total of 4 weight sensing element outputs can be detected and stored in memory, thus every 0.6 seconds,
Data of the center of gravity of the cared person can be obtained. From 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 therebetween can be calculated based on the Pythagorean theorem. In this way, information on the moving distance D can be obtained every 0.6 seconds. For averaging, the information of the moving distance D is added five times, for example, to be AL, and the 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. Thus, the total value AL represents the total sum of the distances of movement of the center of gravity over a predetermined time n, for example, 3 seconds (= 0.6 × 5), and the total value AL is the unit time n, that is, for example, 3 seconds on the bed. It will be an indicator of the caregiver's activity,
This can be referred to as the activity level. The activity level is updated every 0.6 seconds, and by using this activity level, the cared person's activity status can be monitored. When the total value AL which is the activity level is not within the range of the predetermined value which is the normal normal activity state of the care receiver, the display means displays that the care is necessary.

The activity state of the cared person is the amount of movement of the center of gravity at a predetermined time n and represents the degree of activity of the cared person. For example, when an abnormal state occurs in which the cared person is excited 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. Further, when the total value AL, which is the activity level, is less than another predetermined value AL1 (AL <AL1), the cared person is in an abnormal state in which he or she is not rolling over at all and the activity level is low. Is detected, and by this, the care receiver displays that the inactive state is occurring by the display means.

Regarding the end seat, by recognizing the position of the center of gravity of the cared person on the bed, the cared person sitting on the bed edge, which is the peripheral part of the bed, can be detected. Especially when the time when the end seat is detected is midnight detected by the clock means, the cared person,
It is suspected that he is awake, even though he should be sleeping. This state is an abnormal state, and the cared person needs care.

[0196] The turning over support request is necessary at the nursing care site, in particular, to prevent the bedridden elderly from rubbing the floor. Floor rubs occur when the skin sandwiched between the bone and the bedding continues to be compressed. The most effective way to prevent floor rubs is to change the body position of the cared person by the caregiver. However, especially when the caregiver becomes thin at midnight, the work of changing the position of the care receiver is a heavy work. Therefore, when the position of the center of gravity of the care-receiver on the bed hardly moves for a predetermined time M, a turning over support request indicating that turning over is automatically required is displayed by the display means. As a result, the caregiver can perform efficient care without being bound by the schedule management for changing the position of the care receiver. In this way, when the care-receiver such as an old person does not move the center of gravity by turning over for a long time, it is determined that turning over support is necessary, and the display means displays it.

According to the present invention, it is possible to determine whether or not the care of each of a plurality of cared persons is necessary, based on bed leaving, activity state, end sitting, and turning over support request. You will be able to take care of you.

[0198]

According to the present invention, the data on the position of the center of gravity with the passage of time is obtained by calculating an activity pattern based on at least two of the amount of exercise, the number of exercises, and the exercise speed of the care-receiver. By comparing the activity pattern with a predetermined activity pattern, it is possible to judge whether the care receiver should be cared for and perform appropriate care.

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

According to the present invention, the stored contents of the memory are deleted and the new stored contents are updated every time a predetermined time elapses. The person's normal activity pattern can be obtained.

According to the present invention, when an abnormality such as getting out of bed, end sitting and abnormal activity state occurs, the cause can be transmitted to a caregiver, and necessary treatment can be prepared at the stage of abnormality occurrence. Therefore, the caregiver's burden of care work can be reduced.

According to the present invention, the calculation data relating to the activity pattern of the cared person is properly set, so that the activity pattern of the cared person can be properly grasped.

According to the present invention, when the moving area of the position of the center of gravity on the bed within the predetermined time is the predetermined section on the bed to be cared for, it means that the care receiver has an abnormality. Judgment, and thus, it becomes possible to care for the cared person at an early stage. According to the present invention, the memory stores the detection results of leaving the bed, activity state, end sitting, and turning over support request for a predetermined time, and the display unit displays the report history that is the stored content of the memory. Therefore, it is possible to know the frequency of requiring care for each care receiver. This makes it possible to easily prepare for the care of each care receiver. According to the present invention, each of the plurality of beds is provided with the gravity detecting means together with the weight detecting element, whereby the load of the arithmetic processing of the circuit subsequent to the gravity calculating means, for example, the data calculating means can be reduced. .

According to the present invention, when an abnormality such as leaving the bed, sitting at the end, and an abnormal activity state occurs, the cause can be transmitted to the caregiver, and necessary treatment can be prepared in the abnormality occurrence stage. Therefore, the caregiver's burden of care work can be reduced. According to the present invention, by displaying the locus of the position of the center of gravity on the bed with the passage of time by the display means, it is possible to know the time-dependent movement state of the cared person, and to grasp the state of the cared person. It is easy to do.

According to the present invention, when the cared person's center of gravity on the bed moves in a predetermined direction in which the cared person has a high probability of leaving the bed, the occurrence of bed leaving is predicted and displayed. Communicate to the caregiver by means. Therefore, it is possible to reliably prevent the caregiver from falling out of the bed when leaving the bed and the caregiver to fall or wander after leaving the bed.

According to the present invention, each small section is divided into a plurality of direction division areas, and the bed leaving occurrence probability ρ is set for each direction division area, so that the direction in which the cared person moves is detected. Then, from the direction segmented region to which the direction belongs, the bed leaving probability ρ in that direction can be obtained. Further, when the obtained ρ is equal to or larger than a predetermined value ρo, it can be determined that the direction is a direction having a high leaving probability. Therefore, it is possible to reliably predict the occurrence of leaving the bed with a simple configuration.

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

According to the present invention, the stored contents of the memory are updated to new stored contents by sequentially erasing the oldest stored combined data every time new combined data is stored. It is possible to further maintain the probability of leaving the bed that matches the current state of leaving the bed of the cared person.

[0209]

[0210]

According to the present invention, the first control means arranged in the vicinity of each bed has the center of gravity calculating means, the care detecting means and the first transmitting means, and therefore the wiring work can be easily performed. Together with the circuit following the care detecting means,
For example, the calculation load of the processing circuit for the display means can be reduced, and even when the number of cared persons increases, it is possible to display the judgment result that the cared person needs care in real time. it can.

According to the present invention, a plurality of types of conditions to be cared for by each cared person detected by the caring detection means are:
It is displayed in the individual display area of the display means, whereby it is possible to easily know what kind of state each care recipient is in, by looking at the display means. You will be able to provide appropriate care.

According to the present invention, only the state of the type selected by the selecting means is displayed among the plurality of types of care to be taken by each cared person, and thus the required type of care is provided for each cared person. It is possible to know only what should be done and it becomes easier to prepare for nursing care.

According to the present invention, since it is possible to output the care-taking state of the care-receiver to the terminal of the nurse call switch, the existing transmission line can be utilized, and the hospital room and the display means of the nurse station can be used. Installation costs can be reduced because there is no need to lay a dedicated cable for connection. Even if the care receiver cannot press the nurse call switch by his / her own will, the nurse station can be notified at the timing when the condition to be cared for is detected.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall 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 a care receiver monitoring device 3.

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

FIG. 5 is an enlarged perspective view of the bed 9.

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

FIG. 7 is a vertical cross-sectional view of the weight detection element 13.

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

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

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

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

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

FIG. 13 is a diagram showing a state in which the care-receiver 33 performs turning over monitoring on the bed 9.

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.

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

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

FIG. 17 is a diagram showing an entire display screen displayed by a 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 notification display selection screen 50.

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

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

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

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

FIG. 24 is a step b in FIG. 15 of the second processing means 7.
6 is a flowchart showing the activity state monitoring operation of No. 5 more specifically.

FIG. 25 is a flow chart for explaining the operation of extracting and calculating the feature pattern of the care recipient's activity pattern in step c2 of the care recipient in FIG. 24 by the second processing means 7.

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

FIG. 27 is a flowchart for explaining the operation of the processing circuit 7 that achieves 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 that achieves the above-described function B10 regarding prediction of leaving the bed.

29 is a flow chart for explaining a specific operation of the second processing means 7 that executes steps c8 to c10 of FIG. 24 that achieves the above-described function B10 related to prediction of leaving the bed.

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 of the care receiver in the bed leaving prediction section 74 on the bed 9.

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

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

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

FIG. 34 is a fourth embodiment of the present invention described above with reference to Table 1.
It is a figure which shows the display screen 78 of the display means 8 in a form.

FIG. 35 is a fifth embodiment of the present invention described above with reference to Table 1.
It is a figure which shows the display screen 78 of the display means 8 in a form.

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

FIG. 37 is a flow chart for explaining the operation of the activity pattern calculation means relating to the change of the normal activity pattern of the care receiver.

FIG. 38 is a flow chart for explaining the operation of the judgment means for monitoring the normal activity pattern of the cared person.

FIG. 39 is a flowchart for explaining a method of recalculating the probability of getting out of bed.

FIG. 40 is a flowchart for explaining a method of searching for a cause of occurrence when an abnormal end or active state occurs.

FIG. 41 is a flow chart for explaining a method for searching the cause of occurrence of getting out of bed.

[Explanation of symbols]

1 Care support device 3 Care receiver monitoring device 5 nurse station 6 Second transmission means 7 Second processing means 8,23 Display means 9 beds 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 Whole display screen 49 Bed-specific display screen 50 Notification display selection screen 51 Patient History Report Display Screen 52 Patient-specific movement history display screen 53 Patient database screen 73 Normal position 74 Departure prediction section 75 Edge detection section 83 bed selection switch 84 Notification selection switch 88 Mobile terminal

Continuation of front page (51) Int.Cl. ⁷ Identification code FI // G06F 17/60 126 A61B 5/10 310Z (72) Inventor Shoji Toyota 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo Kawasaki Heavy Industries Inside the Kobe factory (72) Inventor Osamu Habata 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo Kawasaki Heavy Industries, Ltd. Inside the Kobe factory (72) Hirofumi Matsuno 3 Higashi-kawasaki-cho, Chuo-ku, Kobe-shi, Hyogo 1-1-1 Kawasaki Heavy Industries, Ltd. Kobe factory (72) Inventor Tadashi Okada 3-2-1 Takatsukadai, Nishi-ku, Kobe-shi, Hyogo Prefecture 16 Kawaju Disaster Prevention Industry Co., Ltd. Kobe Headquarters / Headquarters factory (72) Inventor Gen Adachi No. 5-22, Chaenbacho, Akashi-shi, Hyogo, Yamato Seisaku Co., Ltd. (72) Inventor, Akio Hirose, 5-22, Chaenba-cho, Akashi, Akashi-shi, Hyogo (56) References 11-290394 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61G 7/00

Claims (24)

(57) [Claims] 1. A data calculation means for calculating data relating to the position of the center of gravity of the care-receiver on the bed over time, and in response to the output of the data calculation means,
The data calculation means includes a judgment means for judging whether or not to care for the cared person, and the data calculation means calculates the exercise quantity which is the sum of the distances moved on the bed within a predetermined time and the center of gravity on the bed. At least one of the number-of-movements calculation means for counting the number of times from when the robot starts moving to the stop and a movement speed calculation means for calculating the movement speed from when the center of gravity moves on the bed to when the center of gravity stops. An activity pattern calculation having two, and further responsive to at least two outputs of the amount-of-exercise calculation unit, the number-of-exercise calculation unit, and the movement-speed calculation unit, and calculating an activity pattern composed of a combination of the outputs. The determining means responds to the output of the activity pattern calculating means and determines whether the calculated activity pattern is a normal activity pattern of the care recipient. A care support device characterized by being turned off. 2. The activity pattern calculation means determines a predetermined time D for at least two outputs of the exercise amount calculation means, the exercise frequency calculation means and the exercise speed calculation means.
Memory for one period and the predetermined time D1 in response to the stored contents of the memory.
The average value calculating means for calculating the average value of each of the at least two outputs, and the normal activity pattern calculating means for calculating the normal activity pattern in response to the output of the average value calculating means. The care support according to claim 1, characterized in that, in response to the outputs of the activity pattern calculation means and the normal activity pattern calculation means, it is determined whether or not the activity pattern of the care receiver is the obtained normal activity pattern. apparatus. 3. Each time the memory newly stores the at least two outputs for a predetermined time D2 that is equal to or less than the time D1, the memory erases the oldest stored content for the time D2 to obtain a new stored content. The care support device according to claim 2, which is updated. 4. The cause data inputting means for inputting cause data indicating the cause of the occurrence of the state in which the care receiver should be cared for and the output of the judging means are determined to determine that the care receiver should be cared for. At this time, a memory for storing calculation data and cause data relating to the activity pattern of the care receiver by the data calculation means, and a memory when it is determined that the care recipient should be cared for in response to the output of the determination means. Associated calculation means for calculating whether or not the calculated data and the new calculated data stored in the new calculation data have a predetermined relationship, and store the new calculated data and memory in response to the output of the relationship calculation means. When it is related to the data being
4. An occurrence cause search means for reading out a cause of occurrence corresponding to the relevant data from a memory and sending a signal indicating the cause of occurrence to the display means.
The care support device described. 5. The calculated data is the time, the place, and the amount of exercise, the number of exercises, and the speed of exercise of the care receiver before the occurrence time of the state in which the care receiver should be cared for. The care support device according to claim 4. 6. A plurality of weight detecting elements for detecting the weight related to the bed, a center of gravity calculating means for calculating the position of the center of gravity of the care receiver on the bed in response to the output of the weight detecting elements, and a judging means. In response to the output of the caregiver, the data calculation means further includes a display means for indicating that the caregiver should be cared for, and the detected weight is a predetermined value indicating that the caregiver is not on the bed. Wake-up detection means for detecting that it is Wu or less, and a distance D that the center of gravity moves on the bed within a predetermined time n.
The total value AL of the active state detection means for detecting that the total value AL is outside the range of the predetermined value which is the normal activity state of the care-receiver, and the end seat detection in which the position of the center of gravity on the bed is the peripheral part of the bed. The total value GM of the end-seat detection means for detecting the presence in the section and the distance that the center of gravity moves on the bed within the predetermined time M is less than the predetermined value G0 for the care receiver to turn over. At least one of the turn-over support detecting means for detecting, and further, at least one output of the bed leaving detecting means, the activity state detecting means, the end seat detecting means, and the turn-over supporting detecting means is set for a predetermined time. 6. The care support device according to claim 1, further comprising a memory for storing data, wherein the display means displays the stored content of the memory. 7. 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. The care support device according to claim 6, wherein the care support device is displayed on the means. 8. The data calculation means stores the position of the center of gravity in a memory for a predetermined time, and the display means displays the locus of the position of the center of gravity stored in the memory. Or 7
The care support device described. 9. A data calculation means for calculating data relating to the position of the center of gravity of the care-receiver on the bed over time, and in response to the output of the data calculation means,
The data calculating means determines a moving area of the position of the center of gravity on the bed within a predetermined time, and the judging means determines the moving area obtained by the data calculating means. , A plurality of weight detection elements for determining whether the cared person is a predetermined section on the bed to be cared for and detecting the weight associated with the bed, and in response to the output of the weight detection elements, The data calculation means further includes a center of gravity calculating means for calculating the position of the center of gravity of the cared person, and a display means for responding to the output of the judging means and indicating that the care recipient should be cared for. Is a bed leaving detection means for detecting that the cared person is below a predetermined value Wu, which is a state where the cared person is not on the bed, and a distance D at which the center of gravity moves on the bed within a predetermined time n.
The total value AL of the active state detection means for detecting that the total value AL is outside the range of the predetermined value which is the normal activity state of the care-receiver, and the end seat detection in which the position of the center of gravity on the bed is the peripheral part of the bed. The total value GM of the end-seat detection means for detecting the presence in the section and the distance that the center of gravity moves on the bed within the predetermined time M is less than the predetermined value G0 for the care receiver to turn over. At least one of the turn-over support detecting means for detecting, and further, at least one output of the bed leaving detecting means, the activity state detecting means, the end seat detecting means, and the turn-over supporting detecting means is set for a predetermined time. Has a memory for storing data, the display means displays the stored contents of the memory, and a plurality of beds are provided. A weight detection element and a center of gravity computing means are provided for each bed. The data calculation unit calculates the data for each bed and displays the data on the display unit, and the data calculation unit stores the position of the center of gravity in the memory for a predetermined time, and the data is stored in the memory by the display unit. A nursing care support device characterized by displaying a locus of the position of the center of gravity that is present. 10. Data calculation means for calculating data relating to the position of the center of gravity of the care-receiver on the bed over time, and in response to the output of the data calculation means, said data
The data calculating means determines a moving area of the position of the center of gravity on the bed within a predetermined time, and the judging means determines the moving area obtained by the data calculating means. Is a predetermined area on the bed where the care recipient should be cared for, and the cause data inputting means for inputting the cause data indicating the cause of the occurrence of the condition for caring for the care recipient, and the judgment means In response to the output, when it is determined that the care recipient should be taken care of, a memory for storing the calculation data and the cause data related to the activity pattern of the care recipient by the data calculation means, and responding to the output of the determination means However, whether it is determined that the calculated data stored in the memory and the new calculated data have a predetermined relationship when it is determined that the care recipient should be taken care of. A relevance calculation means for calculating, in response to an output of the relevant computing unit, when there is a relevant to the data stored in the new operation data memory,
A care support device comprising: a cause search unit that reads out a cause corresponding to the related data from a memory and sends a signal indicating the cause to the display unit. 11. The calculated data includes a time, a place, and an amount of exercise, a number of exercises, and an exercise speed of the care receiver before the occurrence time of a state in which the care receiver should be cared for. The care support device according to claim 10. 12. A data calculation means for calculating data relating to the position of the center of gravity of the care receiver on the bed over time, and in response to the output of the data calculation means, the data
The data calculation means includes a determination means for determining whether or not to care for the care recipient, and the data calculation means detects a bed leaving prediction section detecting means for detecting that the position of the center of gravity on the bed is in a bed leaving prediction section which is a peripheral portion of the bed, In response to the output of the bed leaving prediction section detection means, when the position of the center of gravity is in the bed leaving prediction section, it has a moving direction detecting means for detecting the moving direction of the center of gravity, and the judging means responds to the output of the moving direction detecting means. Then, the care support device is characterized by determining whether the detected movement direction is a predetermined direction in which the care receiver has a high probability of leaving the bed. 13. The bed leaving 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 direction of movement of the center of gravity in the circumferential direction, and the bed leaving occurs in each direction section area. The probability ρ is set, the determination means obtains the detected leaving bed occurrence probability ρ in the moving direction based on the direction segmentation region to which the moving direction belongs, and the obtained leaving bed occurrence probability ρ in the moving direction is a predetermined value. 13. The care support apparatus according to claim 12, wherein the moving direction detected when ρo or more is determined as a predetermined direction having a high probability of leaving the bed. 14. A plurality of weight detecting elements for detecting weight related to the bed, a center of gravity calculating means for calculating a position of a center of gravity of a care receiver on the bed in response to an output of the weight detecting elements, and a judging means. In response to the output of the caregiver, the data calculation means further includes a display means for indicating that the caregiver should be cared for, and the detected weight is a predetermined value indicating that the caregiver is not on the bed. Wake-up detection means for detecting that it is Wu or less, and a distance D that the center of gravity moves on the bed within a predetermined time n.
The total value AL of the active state detection means for detecting that the total value AL is outside the range of the predetermined value which is the normal activity state of the care-receiver, and the end seat detection in which the position of the center of gravity on the bed is the peripheral part of the bed. The total value GM of the end-seat detection means for detecting the presence in the section and the distance that the center of gravity moves on the bed within the predetermined time M is less than the predetermined value G0 for the care receiver to turn over. At least one of the turn-over support detecting means for detecting, and further, at least one output of the bed leaving detecting means, the activity state detecting means, the end seat detecting means, and the turn-over supporting detecting means is set for a predetermined time. 14. The care support device according to claim 12 or 13, further comprising a memory for storing the data, and displaying the stored content of the memory by the display means. 15. 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. The care support device according to claim 14, wherein the care support device is displayed on the means. 16. The data calculation means stores the position of the center of gravity in a memory for a predetermined time, and the display means displays the locus of the position of the center of gravity stored in the memory. Or the care support device according to item 15. 17. The bed leaving detecting means for detecting that the detected weight is less than or equal to a predetermined value Wu which is a state in which the care receiver is not present on the bed, and the bed leaving predicting section. In response to the output of the detection means, a movement number calculation means for calculating the movement number k of the center of gravity in the predicted bed leaving section; And a probability calculation means for calculating the probability of bed leaving occurrence ρ (= f / k) for each moving direction of the center of gravity in response to the outputs of the movement number calculation means, the bed leaving number calculation means, and the movement direction detection means. The means is responsive to the outputs of the moving direction detecting means and the probability calculating means, and judges whether the detected moving direction is a predetermined direction in which the cared person has a high probability of leaving the bed. Care support apparatus according to claim 12 or 13, wherein that. 18. The probability calculation means is responsive to the outputs of the movement number calculation means and the bed leaving number calculation means, and each time the center of gravity moves in the predicted bed leaving section, the center of gravity movement number k and the care receiver's bed leaving number. The memory has a memory for sequentially storing the combination data of f, and the memory sequentially erases the oldest combination data and updates the new storage contents each time the combination data is newly stored. The care support device according to claim 17, wherein: 19. A cause data input means for inputting cause data indicating a cause of occurrence of a state in which a care recipient should be taken care of, and it is determined that the care recipient should be taken care of in response to the output of the determination means. At this time, a memory for storing calculation data and cause data relating to the activity pattern of the care receiver by the data calculation means, and a memory when it is determined that the care recipient should be cared for in response to the output of the determination means. Associated calculation means for calculating whether or not the calculated data and the new calculated data stored in the new calculation data have a predetermined relationship, and store the new calculated data and memory in response to the output of the relationship calculation means. When it is related to the data being
The care support device according to claim 3 or 4, further comprising: a cause search unit that reads out a cause corresponding to the relevant data from a memory and sends a signal indicating the cause to the display unit. 20. The calculated data includes a time, a place, and an amount of exercise, a number of exercises, and an exercise speed of the care recipient before the occurrence time of a state in which the care recipient should be cared for. The care support device according to claim 19. 21. A first control means is disposed near each bed, and the first control means responds to the center of gravity calculation means and the output of the center of gravity calculation means and is in a state in which a care recipient should be cared for. And a first transmission means for transmitting the output of the care detection means via a transmission line or a wireless means, and a second control means is arranged in the vicinity of the display means. 3. The second control means has a second transmission means connected to the first transmission means via a transmission line or a wireless means, and outputs the output of the second transmission means to the display means. , 3, 6-9, 17-20. 22. The care detecting means detects a plurality of types of care-requiring states, and the first control means, when at least one of the care-requiring states occurs, indicates the occurrence of the care-requiring state. 22. The care support device according to claim 21, wherein the signal is transmitted by the first transmission means, and the second control means displays the care state occurrence signal in the individual display area by the display means. 23. The care detecting means detects a plurality of types of care-requiring states, the second control means has means for selecting the kind of the state to be displayed by the display means, and the display means selects 23. The care support device according to claim 22, wherein only the state to be cared for selected by the means is displayed. 24. The bed for cared person is provided with a nurse call switch, and the state of the cared person to be cared for can be output to the terminal of the nurse call switch. The care support device described in one of them.