JP4022890B2 - Life response judgment device - Google Patents

Description

  The present invention mainly relates to a life reaction determination apparatus for watching a resident in a private room of a care facility, and relates to a life reaction determination apparatus for efficiently determining abnormal or normal behavior in a short time for each watching item.

  For example, there are devices described in Patent Literature 1 to Patent Literature 3 as conventional devices for watching a resident of a private room in a care facility.

  Patent Document 1 relates to a living behavior monitoring system for a solitary person, regularly collects living behavior data for a long time of a solitary person, and finds abnormalities in living behavior of a solitary person at an early stage based on the collected data. In life rhythm diagnosis, it is a system that detects abnormalities in daily behavior patterns. For this reason, in Patent Document 1, a care mat distributed and arranged at a plurality of required locations in the solitary house a and the entrance / exit is provided, and a person's movement is detected by a pressure sensor of the care mat. When information that detects movement is sent to the center, the center determines whether there is an abnormality based on the received time-series data, past time-series data, or personal data such as medical history, and determines daily life rhythms. And a means for evaluating.

  Patent Document 2 relates to a behavioral capacity monitoring device, and is a device that allows a tendency to be detected before a monitoring target person such as an elderly person living alone cannot move. According to this apparatus, the average number of daily activities of the person A to be monitored is stored in a memory (storage means), and is monitored by a human sensor (human body detection means) installed in the house. Count the number of actual life movements of each person for each time period. Then, the excess / deficiency value of the actual number of times relative to the average number of times is accumulated by the processing unit, and the behavior ability of the target person is monitored based on the accumulated value. In addition, when the cumulative value becomes negative and the absolute value exceeds a predetermined value, the device determines that the degree of decline in behavioral ability has reached an abnormal range.

Patent Document 3 relates to a lifeline data processing system for a single resident, and is a system that can capture the behavior of a single resident and determine the daily state of the single resident. This system includes a data collection unit that collects lifeline data obtained from the reactions of a plurality of sensors, and a data analysis unit that analyzes the behavior of a single resident based on the data collected by the data collection unit. ing. Each sensor is a system installed at least one main living place in a resident residence alone.
JP 2000-57462 A JP 2002-342855 A JP 2004-46560 A

  In the conventional apparatus, the daily life rhythm of the cared person or the like is judged, and a problem remains in the means for judging whether or not it is normal. That is, as in the prior art, the means for determining whether or not the information is normal based on information such as no action or a decrease in action cannot be determined until an arbitrary set time has elapsed.

  For example, in the determination method in which it is determined that there is no action when there is no action throughout the day, an abnormality is determined only after it becomes clear that there is no action in 24 hours, so this determination takes at least 24 hours. . On the other hand, in the determination method in which action history information is stored in advance and this information is compared with the current action for determination, the accuracy of the determination depends on the action history information. However, it is difficult to accurately determine whether the action history information can be the basic information of a highly accurate determination criterion because there are individual differences in the stability of the action. In addition, the current behavior to be compared with the behavior history information requires a comparison with a series of behavior patterns because information is insufficient for a single behavior. As a result, it is difficult to combine action patterns necessary for accurate determination, and there is an inconvenience that requires time for determination.

  Further, according to the monitoring system described in Patent Document 1, after the movement of a person is detected by the pressure sensor of the care mat and this information is transmitted to the center, the center side receives the received time series data and the past time series. A judgment method is adopted in which the presence or absence of abnormality is judged based on data or personal data such as medical history, and daily life rhythm is judged and evaluated. Therefore, the information detected by the pressure sensor is the information source for all of this monitoring system, and the monitoring range is limited to the range of the care mat equipped with the pressure sensor, so it is impossible to watch daily activities It is.

  On the other hand, in the monitoring device described in Patent Document 2, as described above, the average number of times of the life activity of the person A to be monitored for each time zone is stored in a memory (storage means), and the actual number of times for the average number of times is stored. It accumulates the excess and deficiency values of the number of times. Therefore, in order to store this average number in the memory (storage means), the average number data collection period is set to, for example, 30 days. Then, since it is determined whether or not there is an abnormality based on the average number of times in the 30 days, at least 30 days are required for the monitoring device to make the original determination. As a result, there is an inconvenience that a long preparation period is required from the start of use to the actual start of use. Moreover, it is necessary to determine whether or not the 30 days during which the average number of times data is collected is a normal period for the monitoring target person.

  Furthermore, in patent document 3, it is a system provided with the data analysis part which analyzes the action of a single resident based on the collected data. The data used in this data analysis section uses collected data and basic data, and the collected data is data obtained by collecting lifeline signal data obtained from a plurality of sensors that react to the behavior of a single resident. Basic data, on the other hand, provides questions regarding sleep, waking up, going to bed, cooking, meals, cleaning, washing, bathing, and excretion, etc., which are the minimum activities necessary for a resident to continue living alone. This answer will be the basic data. In addition, ask a resident to wear a pedometer, and use the total number of steps per day and the number of steps before and after going out as basic data for analysis. Furthermore, the data analysis unit compares the collected data obtained from the data collection unit with a threshold value indicating the predetermined number of times as the basic data.

  That is, the system of Patent Document 3 analyzes the assumed histogram shape based on the collected data, compares it with the average histogram shape as basic data, and deviates significantly from the average shape. In addition, it is determined that the state is unusual. In such a system, since comprehensive judgment is made by combining different information such as collected data and basic data, it takes a considerable amount of time to reach the final judgment. Moreover, lifeline signal data that responds to actions, data obtained from questionnaires, or a combination of too many types of information as analysis data, such as the total number of steps per day and the number of steps before and after going out. is there. Therefore, depending on the combination method of these data, there is a possibility that the determination result may change greatly, and there remains a problem in the reliability of the analysis method.

  As described above, in the conventional apparatus, a lot of time is required for a preparation period for collecting data, and a lot of time is also required for data analysis for combining and comparing a plurality of types of data. As a result, many problems such as difficulty in accurate determination remain.

  Therefore, the present invention was created to solve the above-mentioned problems, enabling a quick preparation by shortening the preparation period, enabling quick determination without taking time for data analysis, and a plurality of types of data. It is an object of the present invention to provide a life response determination apparatus capable of accurate determination without combining the above.

In order to solve the problems of the art, the first means of the present invention is to set the watching items divided into items such as waking up, washing, eating, cleaning, resting, restroom, bathing, sleeping etc. The life reaction detection means 1 for detecting the start time and end time of the action for each watch item and the number of actions by the sensor installed for each watch item, and the output from the life reaction detection means 1 is input and stored for each watch item. The input information storage means 2 and, on the other hand, determination information consisting of a sensor number of a sensor installed for each watching item and a processing symbol indicating the action content for each watching item as the presence or absence of action or the excess or deficiency of action. When the determination information input means 6 to be input in advance, the determination information storage means 3 for storing the determination information input by the determination information input means 6, and the input information from the input information storage means 2 are shared. , An item-by-item information extraction unit 4 for extracting the determination information from the determination information storage unit 3, and performing an abnormality determination or a normal determination based on the input information and the determination information extracted by the item-by-item information extraction unit 4 Each determination means 5 is provided,
The item-by-item determination means 5
Between the start time and end time in the input information for each watch item ,
An action input variable that leads to two kinds of judgments with different judgment timings: a judgment that is judged to be normal when there is an action, and a judgment that is judged to be abnormal when there is no action ;
Judgment comparison reference variable consisting of the number of times of over- or under-action judgment for each watch item ,
A determination correction variable that makes the determination result of life response positive when abnormal, negative when normal ,
Polarity reversal variable for calculating the presence / absence of action, excess / insufficiency with the same formula ,
The determination result is obtained by a determination calculation formula based on .

The second means is provided with a determination result output means 7 for notifying the outside of the result determined by the item determining means 5 as means for solving the problem.

  According to claim 1 of the determination apparatus of the present invention, a monitoring item in which the state of daily activities is classified is set, and abnormality determination or normality determination is performed based on input information and determination information extracted by the item-by-item information extraction means 4 By providing the item-by-item determination means 5, it is possible to determine without using a past action pattern. As a result, a period for collecting past data is not necessary, and it can be used early with a small preparation period. Moreover, it is not necessary to compare the tendency with the past behavior, and early determination is possible by detection for each watching item. Furthermore, since determination information is provided for each watch item, the determination result output timing for each item can be easily predicted from the determination time setting.

In addition , by the item-by-item determination unit 5, a determination time between a determination that is determined to be normal when there is an action and a determination that is determined to be abnormal if there is no action between the start time and the end time in the input information for each watch item By making two different determinations, it is possible to make a quick determination without requiring time for data analysis. Therefore, if it is determined that the action is normal due to the presence of an action, the determination that the other action is not determined to be abnormal becomes unnecessary. Such a determination can be relieved by knowing the result early without waiting for an abnormality determination if a normal determination is made from the side of watching.

Further , the item-by-item determination means 5 obtains a determination result by a determination calculation formula based on an action input variable, a determination comparison reference variable, a determination correction variable, and a polarity reversal variable, and therefore combines many different types of data. An accurate determination can be made without any problem. Moreover, it is possible to know not only abnormal or normal two choices but also abnormal and normal levels from the result of the judgment calculation formula.

In Claim 2 , since the judgment result output means 7 for notifying the outside of the result judged by the item-by-item judgment means 5 is provided, the information of the care recipient can be grasped and reflected in the care management. It is. As a result, the constant monitoring by the determination apparatus of the present invention can contribute to relieving the psychological anxiety of the caregiver and the cared person.

  As described above, according to the present invention, the preparation period can be shortened to enable early use, data analysis can be performed quickly without requiring time, and accurate determination can be performed without combining multiple types of data. It produces various effects that have never been seen before.

  The best mode of the determination apparatus of the present invention sets watching items that divide the state of living behavior into items such as waking up, washing up, eating, cleaning, resting, toilets, bathing, sleeping and the like. Moreover, the living reaction detection means 1 which detects the start time and end time of action for every watch item, and the frequency | count of action with the sensor installed for every watch item is provided. Furthermore, an input information storage means 2 is provided for watching and outputting the output from the life reaction detection means 1 for each item. On the other hand, determination information in which determination information including sensor numbers of sensors installed for each of the watching items and processing contents indicating the action contents for each watching item, the presence / absence of the action, or the processing symbol indicating the excessive or insufficient action is input in advance. Input means 6 is provided. A determination information storage means 3 for storing the determination information input by the determination information input means 6 is provided. Furthermore, an item-by-item information extraction unit 4 for extracting input information from the input information storage unit 2 and extracting determination information from the determination information storage unit 3 is provided. Then, an item-by-item determination unit 5 that performs abnormality determination or normality determination based on the input information and the determination information extracted by the item-by-item information extraction unit 4 is provided. The item-by-item determination means 5 has a determination time between a determination that is determined to be normal when there is an action and a determination that is determined to be abnormal when there is no action between the start time and the end time in the input information for each watch item. Two different judgments are made. Further, the item-by-item determination means 5 achieves the original purpose by obtaining a determination result by a determination calculation formula based on an action input variable, a determination comparison reference variable, a determination correction variable, and a polarity reversal variable.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. In the device according to the present invention, watching items are set by classifying the state of living behavior into waking up, washing up, eating, cleaning, resting, toilet, bathing, sleeping, and the like. And it is an apparatus which judges whether action is normal or abnormal for every watching item. This determination is made by comparing input information obtained from actual behavior with determination information input in advance for each watching item.

  The input information is data obtained by a sensor installed for each watch item in the life reaction detection means 1, and detects the start time and end time of the action and the number of actions for each watch item. Install at least one sensor for each watch item, and install multiple sensors as necessary. The input information storage means 2 stores these data as input information.

  On the other hand, the determination information is information input in advance by the determination information input means 6. As this determination information, each sensor number and processing symbol of the sensor installed for each watch item is input and stored in the determination information storage means 3. This processing symbol is obtained by quantifying the action content for each watch item. For example, the presence of behavior is processing symbol 1, the absence of processing is processing symbol 2, the excessive behavior is processing symbol 3, and the lack of behavior is processing symbol 4.

Table 1 shows the relationship between processing symbols and determination methods.
In Table 1, the action shortage indicates that the number of actions is less than the number of determinations. On the other hand, “being excessive” indicates that the number of actions is larger than the number of determinations. In addition, the association between items means that if an action is detected within the overlapping time zone of other items with overlapping judgment time zones, it is considered that there is also an action in that item. When the action is not detected in the item and the action is detected in another item, the result is reflected in the item determination. The watching item having the inter-item association function is set as the processing symbol 5 or the processing symbol 6.

  In order to make a determination by comparing the input information obtained from the actual action with the determination information input in advance for each watching item in advance, the item-by-item information extraction unit 4 first reads the input information from the input information storage unit 2. The input information is taken out, and the judgment information is taken out from the judgment information storage means 3. Next, the item-by-item determination means 5 performs abnormality determination or normality determination based on these input information and determination information.

  In the item-by-item determination means 5, the determination time is different between a determination that is determined to be normal when there is an action and a determination that is determined to be abnormal when there is no action between the start time and the end time in the input information for each watch item. Make two judgments. Then, when either one can be determined first, the determination is terminated and the result is reported. For example, if wake-up confirmation is selected as a watch item, it is not possible to determine whether or not it is abnormal unless it is determined that there is no action (no wake-up) and wait until the watch end time. However, when two determinations are performed with different determination timings: a determination that is determined to be normal when there is an action and a determination that is determined to be abnormal when there is no action, it is determined that there is an action (wakes up) and is normal. When the determination is made, there is no need to wait until the watching end time. As a result, the notification timing can be shortened.

To make a determination by comparing the input information and the determination information, the determination result is obtained by the determination calculation formula of the item-by-item determination means 5. This determination calculation formula is as follows.
E = (ab−c) × d
E: As a result of judgment of life reaction, the numerical value indicates the degree of polarity whether it is abnormal or normal. E is a positive value (0, 1, 2,...) When abnormal, and E is a negative value (−1, −2,...) When normal. a ... comparison value a (behavior input variable), b ... comparison value b (determination comparison reference variable), c ... determination correction variable, variable for processing purpose that makes the result of E a positive value when abnormal and a negative value when normal . d: Polarity reversal variable, polarity variable for calculating the presence / absence of action and excess / insufficiency with the same formula.

Next, Table 2 shows the relationship between the determination processing symbol and the variable.

  In Table 2, Ni is the action input count value of the watching item, Nr is the determination count value of the watching item, and Nx is the action input addition value of each item in a time zone where the monitoring item and the determination time overlap.

Table 3 shows an example in which the determination result is obtained by the determination calculation formula.
In this table, the determination of watch item No. 0 (wake-up) is as follows.
E = (2-0-1) × −1 = −1
This results in normality and degree 1. In this determination, there is no input storage information from the original sensor No. 1, but it is determined that there is input storage information in the overlapping time zone of watching other items in association between items, and that there is no normality.
Similarly, the determination result of watch item No. 1 (washing surface) is as follows.
E = (4-0-1) × −1 = −3
This results in normality and degree 3. In this determination, sensor No. 2 has an action detection and is normal determination.
Similarly, the determination of watch item No. 2 (rest) is as follows.
E = (10−6 + 0) × 1 = 4
As a result, the degree of abnormality is 4. According to this determination, the rest is abnormal due to excessive behavior.

  FIG. 1 shows elements of processing that is determined from input information and determination information. Input memory information is not stored in chronological order, but when there is a sensor input, the sensor No. specified in the corresponding item in the watch time zone matches the sensor No. that has been entered. The input storage information is updated. If the determination information of the item includes a processing symbol for performing determination processing with sensor input action detection, the determination processing is performed subsequently. In addition, even when the current time is the last watching time, a determination process determined by the processing symbol of the item is performed.

  FIG. 2 shows a block diagram of the determination apparatus of the present invention. The life reaction detection means 1 detects a life reaction. The input information storage means 2 records the item number assigned to each watch item, the time zone set corresponding to the item number, and the action count value at the sensor number. The determination information storage unit 3 stores the determination information set by the setting information input unit of the determination information input unit 6. The item-by-item information extraction means 4 extracts information corresponding to the corresponding item from the input information storage and the determination information storage by a process determined by a processing symbol included in the determination information. The item-by-item determination means 5 performs determination from both sides of abnormality determination and normality determination with different determination timings from the action input information and the determination information of the corresponding item extracted by the item-by-item information extraction means 4, and determines the determination result. It is issued early, and the result of 2 life reaction judgment is abnormal or normal and its degree is obtained by original life reaction judgment calculation. The setting information input means 6 performs information input by button operation. The determination result output means 7 displays the determination result and outputs the determination result signal to an external device. This determination result output means notifies the result determined by the item determination means to the outside.

FIG. 3 shows the sensor and electrical configuration used in the determination apparatus of the present invention. In the figure, an input sensor 1 (a) is a human sensor and detects a human body action from an infrared ray change amount.
The input sensor 2 (b) is a door sensor and detects a human action from opening and closing of the door.
The input sensor 3 (c) is a toilet sensor, and detects human behavior from the amount of infrared change.
The input sensor 4 (d) is a bed leaving sensor and detects human behavior from a pressure change due to body weight.
The input sensor 5 (e) is a mat sensor, and detects human behavior from a pressure change due to body weight. The sensors connected to these input sensors 2 to 5 are not limited to the illustrated examples, and can be freely changed in each determination device.
The judgment output (f) is a no-voltage contact signal and outputs normal and abnormal results.
The input / output interface circuit unit (g) is a circuit that performs electrical condition matching by exchanging signals with the input / output device.
The display unit (h) displays detection information, determination information, determination result information, and the like.
The operation unit (i) inputs information operations using operation buttons.
The upper communication unit (j) is a serial communication line with the upper computer.
The control circuit unit (k) includes a CPU chip, a memory, and a peripheral circuit, and performs data control of the entire apparatus.
The power supply unit (l) supplies power to each part of the apparatus.

FIG. 4 shows an information format example of the determination apparatus of the present invention.
In the figure, symbol # 0 indicates a processing symbol and a determination processing classification. For example, 1 (present), 2 (none), 3 (excessive), 4 (insufficient), 5 (existing / ream), 6 (absence / ream).
Symbol # 1 indicates sensor designation. For example, specify an input sensor such as 1-5.
Symbol # 2 indicates the number of determinations. For example, 00-99.
Symbol # 3 indicates the minute setting of the watching end time. For example, 00-59.
Symbol # 4 indicates the time setting for the watching end time. For example, the symbol # 5 such as 00-24 indicates the minute setting of the watching start time. For example, 00-59.
Symbol # 6 indicates the time setting for watching start time. For example, 00-24.
Symbol # 7 indicates a watch item. For example, No. 0-9. Up to 10 items can be set from getting up to going to bed.
Symbol # 8 indicates a watch item group. For example, No. 0-9. Only the judgment process for the specified group is performed. Also, if you want to set different conditions depending on the day of the week or the situation of the care recipient, it is handled by grouping. For example, 0 is for weekdays and 1 is for holidays.
In this figure, the determination storage information number is marked as Dxxx (xxx = 000 to 999), and the input storage information number is marked as d xx (xx = 00 to 99).
The information amount is the symbols # 0 to # 6 and the information amount of input storage information 800 (byte) (= 8 (byte / item) × 10 (item / Gr.) × 10 (Gr.)).

FIG. 5 shows a flowchart of processing in the determination apparatus of the present invention.
In the figure, between the “end time?” To “life reaction determination”, two determinations are performed: determination based on action detection and determination based on end time. In the figure, a symbol “;” indicates a comment of the process described on the left. The comment on “Life Activity Count” indicates that if there is a sensor input that is behavior detection, the sensor No. specified in the corresponding item in the watch period matches the sensor No. that has been entered. The input storage information is updated. In “life reaction determination”, determination is made by a processing method determined by a determination symbol of determination information. In “Determination end?”, The determination ends when either normal or abnormal determination is made. In “determination result output”, a determination signal is output to the outside, and the determination result is displayed. In the “release process”, the count information is erased and initialized.

  6 and 7 show another embodiment using the determination apparatus of the present invention. That is, FIG. 6 is a conceptual diagram used for the welfare management system. In this figure, the host device collects the information on the network via the communication line of the determination device of the present invention, and constructs a welfare management system in combination with other management information. Further, if the transmission information is not the life reaction determination result but the behavior information itself, the care receiver behavior information in each room can be grasped and reflected in the care management.

  FIG. 7 shows an example in which the determination device of the present invention is used for a living alone life monitoring device. In this apparatus, a control means for receiving the output of the determination apparatus of the present invention and connecting to a fixed telephone or a mobile phone is added, so that a living alone life monitoring apparatus can be realized.

  It should be noted that the present invention is not limited to the above-described embodiments, and design changes and the like can be freely made without departing from the gist of the present invention.

It is a block diagram which shows one Example of the determination means in this invention. It is a block diagram which shows one Example of this invention determination apparatus. It is a block diagram which shows one Example of the sensor used with this invention determination apparatus. It is a conceptual diagram which shows the information format example of this invention determination apparatus. It is a flowchart which shows one Example of the process in this invention determination apparatus. It is a block diagram which shows the other Example using this invention determination apparatus. It is a block diagram which shows the other Example using this invention determination apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Life reaction detection means 2 Input information storage means 3 Judgment information storage means 4 Information extraction means for every item 5 Judgment means for every item 6 Judgment information input means 7 Judgment result output means

a Input sensor 1
b Input sensor 2
c Input sensor 3
d Input sensor 4
e Input sensor 5
f Judgment output
g Input / output interface circuit
h Display section
i Operation unit
j Upper communication part
k Control circuit
l Power supply

Claims (2)

Set up watching items that categorize living behavior into the following: waking up, washing, eating, cleaning, resting, toilet, bathing, sleeping, etc.
Life reaction detection means for detecting the start time and end time of the action for each watch item by the sensor installed for each watch item, the number of actions,
Input information storage means for watching and outputting the output from the life reaction detection means for each item;
On the other hand, determination information in which determination information including a sensor number of a sensor installed for each watching item and a processing symbol indicating the presence / absence of an action or an excess or deficiency of an action with a symbol is preliminarily input. Input means;
Determination information storage means for storing the determination information input by the determination information input means;
The input information is taken out from the input information storage means, and item-by-item information take-out means is taken out from the determination information storage means,
An item-by-item determination unit that performs abnormality determination or normality determination based on input information and determination information extracted by the item-by-item information extraction unit,
The item-by-item determination means includes
Behavior that leads to two types of judgments with different judgment timings: a judgment that is judged as normal when there is an action and a judgment that is judged as abnormal when there is no action between the start time and the end time in the input information for each watch item Input variables ,
Judgment comparison reference variable consisting of the number of times of over- or under-action judgment for each watch item ,
A determination correction variable that makes the determination result of life response positive when abnormal, negative when normal ,
Polarity reversal variable for calculating the presence / absence of action, excess / insufficiency with the same formula ,
A life reaction determination apparatus characterized by obtaining a determination result by a determination calculation formula based on the above . Vital reaction determination apparatus according to claim 1, characterized in that includes a judgment result output means for notifying the result of determination by the items each judging means to the outside.

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