JP6435482B2 - Dementia prediction system, dementia prediction program, and dementia prediction method - Google Patents

Description

  The present invention relates to a dementia prediction system for predicting dementia, a dementia prediction program, and a dementia prediction method, for example.

  In recent years, dementia of elderly living alone has become a problem. It is said that this dementia can be improved or delayed by curing the disease causing the dementia through early diagnosis.

  Regarding prediction of dementia, a cognitive function prediction system that predicts cognitive function has been proposed (see Patent Document 1). This system for predicting cognitive function is based on nonlinear regression analysis using the test score and the test time from the onset to the test date in the past cognitive function test for a large number of subjects. Estimate the prediction formula for predicting the test score, and execute the prediction formula by substituting the previous test result and the current test result of the subject subject into the obtained prediction formula. The future test score of the person is generated. As a result, the future cognitive function of each individual with dementia can be predicted more accurately, and the future cognitive function can be predicted using information specific to the subject. Yes.

  However, this cognitive function prediction system needs to individually test the subject. For this reason, it cannot be used unless it is noticed that there is a suspicion of dementia or an inspection action such as inspecting for the suspicion is not made in advance. That is, this cognitive function prediction system does not allow a family or the like to predict the possibility of dementia through the daily life of an elderly person living alone.

JP 2012-105795 A

  In view of the above-described problems, the present invention provides a dementia prediction system, a dementia prediction program, and a dementia that can predict the possibility of dementia of a subject without undergoing a test for dementia at a laboratory. The purpose is to provide foreseeing methods.

The present invention obtains a storage unit for storing the input information Readers contains historical data date is registered that the operation input to the target terminal for each of the subject, the historical data from the storage unit Based on the input information acquisition unit and the history data acquired by the input information acquisition unit, whether or not the number of multiple registrations multiple registration is greater than a predetermined determination value corresponds to a dementia possibility determination criterion A dementia possibility notifying unit that outputs a dementia warning message notifying that there is a possibility of dementia if it falls under the dementia possibility corresponding criteria. And the dementia possibility determination unit, based on the history data, for each of the subjects, the number of times of multiple registrations that are the number of days of operation input in a day out of a predetermined number of days And the multiple registration times If there is more than a preset judgment value, it is judged that notification of a dementia warning message is necessary, and if the number of multiple registrations is less than a preset judgment value, the number of days when the operation input is forgotten is forgotten When the number of forgotten registrations is greater than a determination value, it is determined that notification of a forgetfulness warning message is necessary, and when the number of forgotten registrations is less than the determination value, a standard deviation that is a variation in registration time within a predetermined number of days is calculated. A dementia prediction system, a program thereof, and a method thereof, which are configured to calculate and determine that notification of a physical condition warning message is necessary when the standard deviation is larger than a determination value .

  According to the present invention, it is possible to foresee the possibility of the subject's dementia without undergoing a test for dementia at a testing institution.

The system block diagram of a dementia prediction system. Explanatory drawing of a structure of the confirmation screen displayed on a supporter terminal. Explanatory drawing of the structure of the log | history screen displayed on a supporter terminal. The flowchart which shows operation | movement of a subject person terminal. The flowchart of the safety determination process which a server performs. The flowchart of the dementia determination process which a server performs. The flowchart of the browsing process which a server performs.

  The present inventors have studied how to prevent harmful effects caused by lonely death and dementia of subjects such as elderly people living alone. In order to prevent solitary death, it is effective to confirm that the subject is fine every day and to inform the supporters such as family members of the abnormality when there is an abnormality. Here, when the daily behavior of the subject is monitored by a method using a large number of sensors, there is a problem in that the privacy of the subject is infringed even if it is automatically detected whether the subject is normal or abnormal. In addition, frequent examinations to detect dementia have the problem of increasing the burden on supporters and subjects.

As a result of earnest research to solve these problems, the present inventors have promised to make regular inputs such as daily input for safety confirmation to inform the subject that they are well, The present system for predicting dementia using the input information input to the subject was invented. As a result, it was possible to confirm the safety while protecting the privacy of the subject, and to achieve both the multiple effects of being able to foresee dementia without carrying out regular examinations.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a system configuration diagram of a dementia prediction system 1. The dementia prediction system 1 includes a plurality of target person terminals 2, a power line 3, a host device 4, a server 5, a router 6, a management terminal 7, a communication network 8, and a plurality of supporter terminals 9. Among these, the host apparatus 4 and the server 5 constitute a management apparatus A.

  The target person terminal 2 is a terminal installed in the living space of a target person such as an elderly person. The target person terminal with a screen 2a and the simple target person terminal 2b, a portable tablet-type target terminal 2c. There are three types.

  The target person terminals 2a and 2b are installed by connecting to a power outlet in a living space of each household, for example, in a facility where a plurality of households live such as an apartment house. The target person terminals 2a and 2b each include a push button 26 (operation input unit) and a human sensor 28 for detecting a person such as an infrared array sensor, a distance measuring sensor, a pyroelectric sensor, and the like. , Information related to the operation input by the push button 26 and the detection signal from the human sensor 28 is stored in the storage unit, and communicates with the host device 4 through the power line 3 by the power line communication unit.

  The storage units of the target person terminals 2a and 2b store operation input data 23 (input information) for recording the date and time of pressing input, and mode data 24 indicating a notification mode and a non-notification mode. When the mode data 24 is the notification mode, the CPU modules of the target person terminals 2a and 2b cause the light emitting unit 25 to emit light when the time for pressing input is reached, and when the push button 26 is pressed, the light emitting unit configured by an LED lamp or the like. 25 is turned off. The light emitting unit 25 emits light indicating various states such as light emission indicating an operation input request state, light emission indicating an expired state, light emission indicating a normal state (or extinguishing). The push button 26 is provided with a return portion 27 (state return portion) such as a spring for returning from the pressed state to the non-pressed state.

  The power line communication unit of the target person terminals 2a and 2b performs power line carrier communication using the power line 3 as a communication line, and is configured by a low speed PLC module that performs communication in a low speed PLC (Power Line Communication) system. Yes. This low-speed PLC module superimposes a communication signal on a power line using a frequency band of 100 kHz to 400 kHz. Various modulation schemes can be used, but in this embodiment, a DCSK (Differential Code Shift Keying) modulation scheme that is resistant to power line noise is used. The low-speed PLC module also incorporates a noise countermeasure circuit. The low speed PLC module which acquired the technical standard conformity proof with such a structure is used.

  Further, the information terminal 22 such as a liquid crystal display for displaying characters is further provided in the subject terminal with screen 2a.

  The tablet type target terminal 2 c is configured by a tablet terminal having the same configuration as a general computer, and can be connected to the server 5 through a LAN and through a communication network 8. The tablet-type target terminal 2c displays the same button as the push button 26 on the screen displayed on the display unit and the same information display area as the information display unit 22 of the screen with the target person terminal 2a. The target person program 29 that performs the same operation as the target person terminals 2a and 2b is installed. Since this tablet type target terminal 2c is portable, it is not always necessary to be in the living space like the target terminal 2a, 2b.

  In this embodiment, three types of target terminal 2a with screen and simple target terminal 2b, which are dedicated terminals, and tablet type target terminal 2c, which is a general-purpose terminal, are used, but only one of these is used. Alternatively, various terminals can be used as the target person terminal 2 such as using other devices such as a smartphone or a notebook computer.

  The power line 3 is a power line to which power is supplied. In Japan, a 100 V household power line or the like is applicable. The power line 3 is a facility such as a housing complex, and is branched and connected from the switchboard to each living space in order to supply power from the switchboard to the living space of each household. Therefore, each living space is connected by this power line 3.

  The host device 4 includes a power line communication unit that performs communication through the power line 3, a CPU module that performs control operation, and an Ethernet (registered trademark) communication unit that performs communication, and transmits signals to the target person terminal 2 in accordance with instructions from the server 5. And the received signal is transmitted to the server 5.

  The CPU module of the host device 4 sequentially sends response requests to a plurality of target person terminals 2, a transmission process for transmitting a response signal returned in response to the response request process to the server 5, as necessary. A storage unit process for storing or reading information in the storage unit is executed. As the response request process, a pressing condition inquiry process that inquires the target person terminal 2 about the pressing condition of the pressing button 26, and a human sensor that inquires detection information by the human sensor 28 when the pressing button 26 is not pressed. The detection information inquiry process is executed.

In addition, the CPU module of the host device 4 performs polling communication using the host device 4 as a host and the target person terminals 2a and 2b as clients in communication processing through the power line communication unit. This makes it possible to meet the bus-type network topology and satisfy the real-time requirements for safety confirmation. The CPU module is configured to use a polling bidirectional communication protocol. Thereby, not only information collection from the subject person terminals 2a and 2b but also bidirectionality in which information for transmission such as regional information is transmitted from the host device 4 to the subject person terminal 2a is realized.
One host device 4 may be installed in the facility such as in the vicinity of the switchboard in a facility such as a housing complex. Accordingly, one host device 4 and a plurality of target person terminals 2 are installed in one facility, and these are electrically connected by the power line 3.

  The server 5 is composed of a general computer device. The computer device includes a control unit such as a CPU that performs control, a storage unit such as a hard disk that stores information, a medium processing unit that processes a medium such as a CD-ROM, and a communication unit that communicates using a method such as Ethernet (registered trademark). An output unit), an operation input unit such as a keyboard and a mouse for receiving an operation input, and a display unit such as a liquid crystal display or a CRT display for displaying an image. The server 5 communicates with the router 6 and the host device 4 through a communication unit. The storage unit is configured to store data in a flash memory, not a hard disk drive (HDD) using moving parts. This achieves robustness and cost reduction against failures such as power outages.

  The storage unit of the server 5 stores history data 5a, subject data 5b, a dementia prediction program 5c, a safety confirmation module 5d, and a browsing program 5e. In the history data 5a, information on pressing of the push button 26 on the subject person terminal 2 and detection information on the human sensor 28 are recorded with an ID for each subject as a history including date and time data. In the target person data 5b, necessary data related to the target person, such as the address and name of the target person, the e-mail address and the contact information of the support person, are stored together with the ID for each target person. The history data 5a and the target person data 5b are associated by an ID. The dementia prediction program 5c executes the safety confirmation module 5d and performs prediction and notification of dementia based on the aggregation of the results. The safety confirmation module 5d executes a process of notifying the supporter that it is safe when the push button 26 is pressed or a human sensor 28 senses a person, or that it is abnormal because it cannot be detected. . The browsing program 5e displays various information such as safety information and dementia prediction information on the screen of the supporter terminal 9 when the supporter accesses the supporter terminal 9.

  The router 6 is a device that can perform information communication through the communication network 8, and can be configured by an appropriate router that can communicate through the communication network 8, such as a mobile router such as a 3G router or a WiFi router.

  The management terminal 7 is a device that is operated by an administrator to perform maintenance and the like of the server 5. The management terminal 7 includes a general computer device similar to the server 5, and communicates with the server 5 through a communication unit.

  The communication network 8 can be an appropriate communication network such as a mobile communication line such as a 3G line or a communication line such as the Internet.

  The supporter terminal 9 can be configured by an appropriate terminal having at least a communication function, a display function, and an input function, such as a notebook computer 9a or a smartphone 9b configured by a general computer. A mode switching program 9 c is installed in the storage unit of each supporter terminal 9. This mode switching program 9c is a program for switching the mode data 24 of the subject person terminal 2 to either the notification mode or the non-notification mode in accordance with the operation input of the supporter. Although the mode switching program 9c is installed in the supporter terminal 9 to enable mode switching at a remote place, each target person terminal 2 is equipped with a mode switching button by hardware or software, and the target person terminal 2 may be configured to directly perform mode switching.

  2A is a configuration diagram of the confirmation screen 30 displayed on the display unit of the notebook computer 9a, and FIG. 2B is a configuration diagram of the confirmation screen 35 displayed on the display unit of the smartphone 9b.

  As shown in FIG. 2A, the confirmation screen 30 is a screen that is displayed by accessing the server 5 by a browser program, and includes a message display unit 31 and a history confirmation button 34.

  Various messages can be displayed on the message display unit 31. In this embodiment, three types of messages, a dementia warning message, a forgetfulness warning message, and a physical condition warning message are displayed.

  The dementia warning message is as shown in the figure. “Mr. XX is forgetting things. We recommend early diagnosis of dementia. First, try using the dementia check sheet. ? "And a dementia check URL 33. When the URL for dementia check 33 is selected, a web page for self-diagnosis that can determine the possibility of dementia is displayed by checking the check list.

  The forgetfulness warning message is composed of a message “Mr. XX is forgetting a little. Please check your physical condition.”

  The physical condition warning message is composed of a message “Mr. XX has changed her rhythm of life a little. Please check your physical condition.”

  As shown in FIG. 2B, the confirmation screen 35 is a screen for displaying a received mail by a mail program. The confirmation screen 35 is a message display section 36, a send button 37 for forwarding a message, and an edit button for editing the mail contents. 38 and a menu button 39 for accessing the history screen 40 (see FIG. 3).

  Similar to the message display unit 31 described above, the message display unit 36 displays various messages such as a dementia warning message, a forgetfulness warning message, and a physical condition warning message. It should be noted that, as a display for a smartphone, do not display dementia check for URL33 in dementia warning message, or "Greetings from Hello. Confirmation elderly safety system." At the beginning of each message and the like to add a variety of display It can be.

  FIG. 3A is a configuration diagram of a history screen 40 that displays a history of input by the subject pressing the push button 26 for safety confirmation, and FIG. 3B is an operation on the history screen 40. It is a block diagram which shows the state inside.

  The history screen 40 includes a previous period display button 41a for changing the displayed period to the previous period (previous month in the illustrated example) and the next period for changing the displayed period to the next period (next month in the illustrated example). A period display button 41b, a period display section 42 indicating a display period, a time list display section 43, a frequency list display section 46, a redetermination button 48 for redetermining the possibility of dementia, and a return button 49 And.

  The time list display unit 43 uses the vertical axis as the time and the horizontal axis as the date, and the safety information registration time, which is the input time by the push button 26, is set as the time mark 44 for a predetermined period (one month in the illustrated example). Display separately. For a date that has been input a plurality of times, a time mark 44 is displayed at an appropriately determined time such as the first input time, the last input time, or the intermediate time from the first input to the last input. Note that the time mark 44 may be displayed at all times input a plurality of times.

  The number-of-times list display unit 46 uses the vertical axis as the number of times and the horizontal axis as the date, and the safety information registration number that is the number of times of input by the push button 26 as a bar graph 47 for a predetermined period (one month in the illustrated example) for each date. indicate. The bar graph 47 is not displayed on the day when the number of inputs is zero.

  As shown in FIG. 3B, the horizontal axis date or bar graph 47 or time mark 44 is selected by the input device in the frequency list display unit 46 or the time list display unit 43 (touched by right mouse click or touch input). Then, the exclusion designation part 51 (unnecessary information exclusion part) is displayed on the screen. This exclusion designating part 51 can designate whether the input information of the selected date is “included in dementia determination” or “not included in dementia determination”. This makes it possible to perform the dementia determination again, for example, on days when there is no pressing input, excluding days when there are circumstances such as going out.

  FIG. 4 is a flowchart showing operations related to the push button 26 and the light emitting unit 25 among the operations executed by the CPU module of the target person terminal 2. This operation is executed under the promise that the subject person periodically presses the push button 26. The subject person, for example, always presses the push button 26 every day in the morning, and incorporates into his daily life an act of notifying a supporter such as a relative that he is well.

  The CPU module waits until the operation input request condition is satisfied and a pressing request is started (step S1: No). The press request is a notification request (a request for sending a spirit) requesting the supporter to be notified that the subject is well and is fine. The operation input request condition may be an appropriate condition such as receiving a pressing request start signal from the host device 4 or reaching a preset time (for example, 9 am).

  When it is time to start the pressing request (step S1: Yes), the CPU module accesses the mode data 24 of the storage unit and confirms whether the mode is a notification mode or a non-notification mode (step S2).

  In the notification mode (step S2: Yes), the CPU module issues a pressing request by turning on the light emitting unit 25 (step S3). In the non-notification mode (step S2: No), the CPU module proceeds to the next step S4. . The lighting of the light emitting unit 25 indicates that it is in an operation input request state, and can be appropriately turned on, for example, it is lit in blue or green.

  When the push button 26 is depressed by the subject (step S4: Yes), the CPU module stores the depression in the operation input data 23 of the storage unit (step S8). Here, for example, when the input terminal is the tablet-type target terminal 2c, if it can be determined that the input is performed at home by the GPS function, it is stored in the operation input data 23 as usual, and if it can be determined that the input is performed on the go, the extraordinary data Is preferably stored in the operation input data 23. In addition, if the target person is normally input at the target person terminal 2a with screen or the simple target person terminal 2b, the input by the target person terminals 2a and 2b is set as normal data and is input at the tablet type target person terminal 2c. The data may be stored in the operation input data 23 after being given an identifier that the data is extraordinary data.

  If the mode data 24 of the storage unit is the notification mode (step S9: Yes), the CPU module turns off the light emitting unit 25 to return to the normal state (step S10), and ends the process. If it is the non notification mode (step S9: No), the CPU module functions as a state return unit, and ends the process without instructing the light emitting unit 25 to change.

When the push button 26 is not pressed in step S4 (step S4: No), the CPU module waits until it is pressed if the pressing time limit has not passed (step S5: No).
If the pressing time limit has passed (step S5: Yes), the CPU module confirms the mode setting stored in the mode data 24 of the storage unit (step S6).

If it is notification mode (step S6: Yes), a CPU module will change the light emission classification of the light emission part 25 (step S7), and will return a process to step S4. This change in the light emission type is a change for notifying that the push button 26 is not pressed (that is, not notified that it is fine) and that the deadline has passed, and is different from the lighting in step S3. It is possible to select an appropriate light emission type, such as lighting with a different color such as red lighting or a different light emission state by flashing blue or green. The light emission in the non-pressed light emission type also has the meaning of notifying the subject that the human sensor 28 is operating.
If it is the non notification mode (step S6: No), the process returns to step S4 without instructing the light emission section 25 to change the light emission type.

  In this way, according to the mode setting stored in the mode data 24 of the storage unit, the CPU module changes the state of the light emitting unit 25 into the pressing request state (notification request state) and the non-pressing state (non-notification state). , And can be notified to the subject of which state it is. When the push button 26 is pressed, it is possible to shift to a pressing unnecessary state (normal state) in either the pressing request state (notification request state) or the non-pressing state (non-notifying state). Further, when the mode setting of the mode data 24 is the non notification mode, it is possible to notify the target person of which state the light emitting unit 25 is in without changing the state.

  FIG. 5 is a flowchart showing the operation of the safety determination process executed by the instruction of the safety confirmation module 5d installed in the server 5 among the operations of the dementia prediction system 1, and the control unit of the server 5 and the CPU of the host device 4 The operation | movement of the module and the CPU module of the subject terminal 2 is shown.

  The control unit of the server 5 waits until the confirmation start timing is reached (step S11: No). When the confirmation start timing is reached (step S1: Yes), one of the plurality of target person terminals 2 is pressed or not. A press presence / absence inquiry signal for inquiry is transmitted to the host device 4 (step S12). The confirmation start timing is preferably set to a timing when a sufficient time has elapsed since the pressing request is made at the subject person terminal 2, and is preferably set to a predetermined time (for example, noon).

  The CPU module of the host device 4 converts the pressing presence / absence inquiry signal received via Ethernet into a signal of the low-speed PLC method, and superimposes it on the power of the power line 3 and transfers it to the subject terminal 2 (step S13).

  The CPU module of the subject person terminal 2 reads out the operation input data 23 stored in the storage unit in accordance with the received low-speed PLC type press-inquiry inquiry signal (control signal) (step S14), and the host device via the power line 3 A low-speed PLC response signal is transmitted to 4 (step S15). Steps S14 to S15 are executed by the target person terminal 2 specified by the received press-inquiry inquiry signal, and the target terminal 2 not specified does not respond. Thereby, even if a plurality of target person terminals 2 are connected to the power line 3, communication is not disabled due to a collision. The response signal does not include information detected by the human sensor 28. Thereby, there is no information transmitted based on the detection of the human sensor 28, so that the privacy of the target person can be protected.

The CPU module of the host device 4 transfers the received response signal to the server 5 via the Ethernet (step S16).
The control unit of the server 5 stores the response signal in the storage unit (step S17).

  Until the reception of response signals for all the subject terminal 2 is completed (step S18: No), the control unit of the server 5 switches the designated subject terminal 2 to the next one (step S19), step Repeat processing is repeated to repeat S12 to S17.

  When response signals are received from all the target person terminals 2 (step S18: Yes), the control unit of the server 5 classifies the target person terminals 2 according to the type of the response signal (step S20). In this classification, the target terminal 2 in which the push button 26 is pressed is stored in the operation input data 23 is “normal”, and the push button 26 is pressed is not stored in the operation input data 23 The person terminal 2 can be classified as appropriate, for example, as “not pressed” or “abnormal”.

  The control unit of the server 5 functions as a safety confirmation information output unit, and outputs safety confirmation contents (safety confirmation information) such as “normal” and “abnormal” through the router 6 (step S21). The output at this time is an output in an appropriate method that can be confirmed even when the supporter is at a remote place, such as transmission in an e-mail format that can be received by the supporter terminal 9.

  The control unit of the server 5 sends a sensor inquiry signal for inquiring detection information from the human sensor 28 to one of the target person terminals 2 that has not been pressed to the host device 4 via the Ethernet. Processing is performed (step S22).

  The CPU module of the host device 4 converts the sensor inquiry signal received via Ethernet into a low-speed PLC signal, superimposes it on the power of the power line 3, and transfers it to the subject terminal 2 (step S23).

  The CPU module of the target person terminal 2 reads the detection information from the human sensor 28 and the operation input data 23 stored in the storage unit according to the received low-speed PLC type sensor inquiry signal (step S24). Then, a low-speed PLC response signal is transmitted to the host device 4 (step S25). Since these steps S24 to S25 are also executed only by the designated subject terminal 2 as in the above steps S14 to S15, communication is not disabled due to a collision.

The CPU module of the host device 4 transfers the received response signal to the server 5 via the Ethernet (step S26).
The control unit of the server 5 stores the response signal in the storage unit (step S27). Included in the response signal are detection information from the human sensor 28 and operation input data 23 indicating whether or not the press button 26 has been pressed. As a result, it can be confirmed that it has not been pressed but can be confirmed safely by the human sensor 28, since it has not been pressed, it has been reconfirmed, but it can be confirmed that the push button 26 has already been pressed, or the human sensor 28 remains unpressed. Since the person cannot be detected, it can be confirmed that there is a possibility of an abnormal state.

  Until all the inquiries to the unpressed target terminal 2 are completed (step S29: No), the designation is switched to the next terminal in the unpressed target terminal 2 (step S30), and steps S22 to S27 are performed at predetermined intervals. Repeat the process with. This predetermined interval can be set to an appropriate interval, for example, every hour.

  When response signals are received from all the unpressed target terminal 2 (step S29: Yes), the control unit of the server 5 classifies the target terminal 2 by the type of response signal (step S31). This classification is “safe movement” when movement of the subject is detected by the human sensor 28, and “safe rest” when the body temperature of the subject is detected as a normal range by the human sensor 28. Appropriate classification, such as “return to normal” when the operation input data 23 with the push button 26 pressed is received, and “danger” when the person is not detected by the human sensor 28. It can be. In addition, when the subject can be detected by the human sensor 28, it is processed as safe for safety confirmation. Further, if the human sensor 28 can detect the target person without pressing the push button 26, it is determined that the user has forgotten to press the button 26, and the human sensor 28 cannot detect the target person without pressing the push button 26. Exclude data to exclude from the dementia assessment due to possible causes such as absence.

  The control unit of the server 5 functions as a safety confirmation information output unit, and through the router 6, the safety confirmation contents (safety confirmation information) such as “safe movement”, “safety stationary”, “normal recovery”, “danger”, and the like. Output (step S32). The output at this time is an output in an appropriate method that can be confirmed even when the supporter is in a remote place, such as transmission in an e-mail format that can be received by the supporter terminal 9.

  The control unit of the server 5 ends the process if there is no unpressed target terminal 2 (step S33: No), and if it remains (step S33: Yes), it has passed the repeated time limit. It is determined whether there is any (step S34). This repetition time limit can be set to an appropriate predetermined period, for example, 48 hours, or 48 inquiries every other hour.

  If the repeated deadline has passed (step S34: Yes), the control unit of the server 5 ends the process, and if not overdue (step S34: No), the target terminal that has not pressed the push button 26 2 are arranged (step S35). At this time, the target terminal 2 that is classified as unpressed in step S20 is subjected to reset processing that excludes the target terminal 2 that is classified as normal return (that is, with a pressing operation) in step S31, so that the target that is not pressed The person terminal 2 is extracted.

  In step S35, the control unit of the server 5 determines the designated target person terminal 2 as one of the plurality of target person terminals 2 after arrangement, and returns the process to step S22. This iterative process is preferably executed at a predetermined interval such as once per hour.

  FIG. 6 is a flowchart showing the overall operation of the dementia prediction system 1 executed by the control unit of the server 5 in accordance with the instruction of the dementia prediction program 5c. Steps S41 to S42 are safety determination processing, and steps S44 to S54 are dementia determination processing.

  The control unit of the server 5 stands by until the safety determination time is reached (step S41: No), and when the safety determination time is reached (step S41: Yes), the safety determination processing (processing for the current day) described with FIG. 4 is executed. The result is stored in the storage unit (step S42).

  The control unit of the server 5 functions as an input information acquisition unit and reads the history data 5a (see FIG. 1) (step S43). If one month has elapsed since the start or the previous dementia determination process (step S44: Yes), the control unit of the server 5 executes the monthly process (first period process) of steps S45 to S50, If it has not elapsed (step S44: No), the process proceeds to step S51.

  The control unit of the server 5 determines the number of multiple registrations W, which is the number of multiple registrations performed during one month (a predetermined number of days) including the registration date (that is, the day when the push button 26 is pressed many times during one day). The number is calculated for each subject (step S45).

  The control unit of the server 5 functions as a dementia possibility determination unit, and determines whether or not the number of multiple registrations W is greater than a predetermined determination value (dementia possibility determination criterion) for each target person. When the number of multiple registrations W is larger than the determination value (step S46: Yes), step S47 is executed.

  The control unit of the server 5 functions as a dementia possibility notification unit, and a dementia warning message is sent to the supporter's email address registered in the subject data 5b of the subject whose multiple registration count W is greater than the determination value. Is transmitted as an e-mail (see FIG. 2B), and information for the confirmation screen 30 (see FIG. 2A) displayed when the WEB server of the server 5 is accessed by the browser of the supporter terminal 9 The dementia warning message is stored in the storage unit (step S47). This encourages relatives and others to make early diagnosis of the subject's dementia.

  The control unit of the server 5 forgets to register F, which is the number of times of forgetting registration within a month (a predetermined number of days) including the registration date (that is, the day when the user forgets to press the push button 26 within one month). Number) is calculated (step S48). When calculating the number of times of forgetting registration F, the day when the push button 26 is not pressed and the person is not detected by the human sensor 28 is due to absence or the like, and is not forgotten. Exclude from calculation.

  The control unit of the server 5 executes step S50 when the number of times of forgetting registration F is greater than the determination value (step S49: Yes), and skips step S50 when the number is less (step S49: No).

  The control unit of the server 5 sends an e-mail of forgetting warning message to the e-mail address of the supporter registered in the subject data 5b of the subject whose number of forgetting registration F is larger than the determination value (see FIG. 2B). And the forgetting warning message is stored in the storage unit as information for the confirmation screen 30 (see FIG. 2A) displayed when the WEB server of the server 5 is accessed by the browser of the supporter terminal 9 (see FIG. 2A). Step S50). This encourages relatives to check the subject's recent physical condition and forgetfulness.

  When one week (a predetermined number of days) has elapsed since the start or the previous dementia determination process (step S51: Yes), the control unit of the server 5 executes the weekly process (second period process) of steps S52 to S54. If it has not elapsed (step S51: No), the process is terminated.

  The control unit of the server 5 calculates a standard deviation S that is a variation in registration time in one week including the registration date (step S52). Here, when calculating the standard deviation S, it is preferable to calculate the standard deviation S by excluding data to which an identifier of extraordinary data is assigned. Thereby, it is possible to exclude from the determination target days that vary due to different environments.

  When the standard deviation S is larger than the determination value (step S53: Yes), the control unit of the server 5 executes step S54, and when the standard deviation S is smaller (step S53: No), the process ends.

  The control unit of the server 5 sends a physical condition warning message as an e-mail (see FIG. 2B) to the e-mail address of the supporter registered in the subject data 5b of the subject whose standard deviation S is larger than the determination value. The physical condition warning message is stored in the storage unit as information for the confirmation screen 30 (see FIG. 2A) displayed when the WEB server of the server 5 is accessed by the browser of the supporter terminal 9 while being transmitted (step) S54). This encourages relatives and others to check the subject's recent physical condition.

  FIG. 7 is a flowchart of an operation executed by the server 5 accessed by the browser of the supporter terminal 9 according to the browsing program 5e as a WEB server.

  The control unit of the server 5 stands by until there is an access by the supporter terminal 9 (step S61: No), and if there is an access (step S61: Yes), the message set as the target person of the supporter who has accessed. Is displayed on the confirmation screen 30 (see FIG. 2A) (step S62).

  If the history button 34 is not selected (step S63: No), the control unit of the server 5 waits until the process is ended (step S65: No), and ends the process (step S65).

  When the history button 34 is selected (step S63: Yes), the control unit of the server 5 displays the history screen 40 (see FIG. 3A) on the browser of the supporter terminal 9 (step S64).

  If it is not changed by the exclusion specifying unit 51 (see FIG. 3B) whether or not data of a certain day is included in the dementia determination by the operation of the supporter terminal 9 by the supporter (step S66: No), the process ends. The process waits until an operation is performed (step S70: No), and if an end operation is performed (step S70: Yes), the process is terminated.

  If changed (step S66: Yes), the control unit of the server 5 registers the changed content in the history data 5a of the storage unit (step S67), and if not judged again (step S68: No), step S70. Perform standby processing at.

  When the re-determination button 48 is selected (step S68: Yes), the control unit of the server 5 re-executes the dementia determination process (steps S44 to S54) described with reference to FIG. 6 (step S69), and proceeds to step S62. Go back and display the message after re-execution (dementia warning message, forgetfulness warning message, or physical condition warning message).

  With the above configuration and operation, the dementia prediction system 1 can confirm the safety of the subject and can predict the possibility of developing dementia without performing a special examination using the information on the safety confirmation. .

  That is, since the dementia prediction system 1 performs the safety determination process using the active safety confirmation method, it can be used mainly for the safety confirmation of the elderly in single-person households. Early diagnosis can be promoted. This will not only enable seniors to live their lives with peace of mind, it will also reduce the burden on cooperators and relatives related to support for the elderly.

Moreover, since the recognition chapter prediction system 1 executes the prediction of dementia after collecting the history data 5a for a predetermined number of days, it can make an accurate determination.
In addition, the cognitive chapter prediction system 1 gives priority to the output of the safety confirmation information over the output of the dementia prediction, so that the supporter is surely notified of the most important safety confirmation result without being buried in the dementia prediction result. can do.

  In addition, the operation input data 23 on the day when the target person cannot input or is difficult as in normal times, such as when inputting on the go, is excluded from the information used for the determination in step S52. Therefore, it is possible to execute a highly accurate determination by excluding the variation in input time due to the environment being different from daily life from the determination target.

  In addition, when calculating the number of forgetting registrations F, the days when the push button 26 is not pressed and the person sensor 28 is not detected are excluded from the calculation target, so the registration is forgotten. It is possible to make a highly accurate determination by excluding days when the push button 26 is not pressed due to a cause other than the above.

  In addition, a return unit 27 that returns even when the push button 26 is pressed is provided, and further, the notification mode and the non-notification mode can be set, so that the push button 26 is pressed in the non-notification mode. It is possible to prevent the subject from seeing the subject terminal 2. Accordingly, if the user does not remember pressing the push button 26, the push button 26 is pressed again to register multiple, and the prediction accuracy of dementia can be improved. In other words, if it can be confirmed by the light emitting unit 25 or the like that it has already been pressed, even if you forget whether or not it has been pressed, it will not lead to multiple registration, but by not being able to confirm this, it will lead to multiple registration and predict for dementia It becomes possible to do.

  In addition, processing is performed in the order of a dementia warning message, a forgetfulness warning message, and a physical condition warning message, and when one of the messages is decided to be notified, no other message is processed. Can be notified. That is, it is possible to prevent an important warning message from being buried in a minor warning message.

In addition, the supporter can easily confirm the safety without infringing on the privacy of the target person.
Since the configuration is such that the subject is informed that the subject is safe by pressing the push button 26, the behavior of the subject is not monitored, privacy is maintained for the subject, and safety is easily informed. In addition to being able to achieve both, it is possible to predict the possibility of dementia in daily life before taking a special test.

  In addition, since the communication between the target person terminal 2 and the host device 4 is performed by the power line 3, the target person can use only by inserting the power outlet 28 of the target person terminal 2 into the power outlet outlet in the living space. Anyone can easily use it without the need to pull cables.

  Also, in a housing complex, since one host device 4 is installed and the target person terminal 2 is installed in the living space of each home, the dementia prediction system 1 can be used easily and inexpensively. .

  Further, by using the power line carrier communication (PLC), the cost of the entire system including the network wiring can be reduced. In the case of notification by e-mail, the communication network 8 can also reduce the cost by using a low-speed 3G line.

  In addition, supporters such as residents of the residents' association, civilians, and remote families who support the elderly can check daily safety information by e-mail, etc., which can place an excessive burden on the supporter. Even if the supporter is in a remote place, the safety status of the target person can be immediately known.

  In addition, the possibility of dementia and forgetfulness can be determined and notified once a month, and the possibility of poor physical condition can be determined and notified once a week. It is possible to appropriately deal with sickness tests and poor physical condition. Moreover, since these notifications with low urgency are not performed every day, it is possible to prevent the supporter from feeling annoying by receiving messages every day.

  Moreover, since the target person terminal 2a with a screen is provided with the display unit 22 and can display information such as character information received from the server 5 via the host device 4, it feels that the elderly are being watched from the area. You can display regional information in the same way.

In this way, the low-priced dementia prediction system 1 that the elderly feel that is being watched from the community is provided, and the prevention of lonely death in collective housing such as public housing and temporary housing in disaster areas, relatives, etc. It can be useful for early detection of dementia in elderly people living alone who rarely meet.
In addition, the dementia prediction system 1 can play a part of the realization of a society where ICT can be healthy and live independently.

The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.
For example, although the host device 4 and the server 5 are configured separately, an integrated configuration using one computer may be used.

  In addition, the possibility of dementia is determined based on the number of times the subject has pressed down with the push button 26, the forgetfulness is determined based on the presence or absence of input, and poor physical condition is determined based on the input time. An appropriate determination may be made based on the presence / absence of input, the input time, the number of inputs, or a plurality thereof.

In addition, although the dementia warning, the forgetfulness warning, and the physical condition warning are performed after the safety confirmation is notified, the warning may be performed simultaneously with the safety confirmation. In the case of notification at the same time, it may be implemented by a method such as including the warning message in an e-mail that transmits the safety confirmation content.
Further, the change of the notification mode is not limited to the supporter terminal 9 but can be changed by an appropriate device such as the target person terminal 2, the server 5, or the management terminal 7.

  In addition, as a promise of regular input, one input request period is set to one day (more specifically in the morning), and the input is pressed once a day. An appropriate promise can be made, such as entering once every morning, noon, and evening. In this case, press input is classified according to the input request period (am and night, or am and day and night, etc.), and multiple registrations are performed for each input request period for the determination of multiple presses that affect dementia determination. It may be configured to detect and determine whether or not the number of multiple registrations W is greater than the calculated determination value.

  Moreover, the absence type registration function may be provided in the tablet type target person terminal 2c and / or the supporter terminal 9, and the absence day may be input in advance or after the absence day registration screen. In this case, it may be configured such that the absence date is not checked for safety and the input information on the absence date is not used for the dementia determination, the forgetfulness determination, or the physical condition determination. Thereby, the operation | work of safety confirmation can be made easy and the burden of a supporter can be reduced, and determination accuracy, such as a dementia determination, can be improved.

  The present invention can be used in a system for predicting the possibility of dementia under the promise of daily input in daily life, and in addition, the possibility of dementia based on periodic input by the subject side. It can be used in a system for predicting sex.

DESCRIPTION OF SYMBOLS 1 ... Dementia foreseeing system 5 ... Server 5c ... Dementia foreseeing program 26 ... Push button 27 ... Return part 28 ... Human sensor 51 ... Exclusion designation part

Claims (4)

A storage unit for storing input information including a history data date Readers manipulates input to the target terminal is registered for each of the subject,
An input information acquisition unit for acquiring the history data from the storage unit ;
Based on the history data acquired by the input information acquisition unit, it is determined whether the multiple registration number of multiple registrations is greater than a predetermined determination value, whether or not a dementia possibility determination criterion is met. A dementia possibility determination unit;
A dementia possibility notification unit that outputs a dementia warning message for notifying that there is a possibility of dementia if the dementia possibility corresponding criterion is satisfied ,
The dementia possibility determination unit,
Based on the history data, for each target person, to calculate the number of times of multiple registration, which is the number of days in which the operation input is repeated many times in one day out of the predetermined number of days,
When the number of multiple registrations is greater than a preset determination value, it is determined that notification of a dementia warning message is necessary,
When the number of multiple registrations is less than a predetermined determination value, the number of registration forgets, which is the number of days for which operation input is forgotten next, is calculated,
If the number of forgetting registration is greater than a judgment value, it is judged that notification of a forgetfulness warning message is necessary,
If the number of forgotten registrations is less than a determination value, a standard deviation that is a variation in registration time within a predetermined number of days is further calculated, and if the standard deviation is greater than a determination value, it is determined that notification of a physical condition warning message is necessary <<br/> Dementia prediction system. Processing is performed in the order of the dementia warning message, the forgetfulness warning message, and the physical condition warning message, and other messages are not processed when it is determined to notify any message. 1. The dementia prediction system according to 1. Computer
A storage unit for storing input information including a history data date Readers manipulates input to the target terminal is registered for each of the subject,
An input information acquisition unit for acquiring the history data from the storage unit ;
Based on the history data acquired by the input information acquisition unit, it is determined whether the multiple registration number of multiple registrations is greater than a predetermined determination value, whether or not a dementia possibility determination criterion is met. A dementia possibility determination unit;
If applicable to the dementia possibly relevant criteria, dementia potential notification section and then by function of outputting dementia warning message notifying that there is a possibility of dementia,
The dementia possibility determination unit,
Based on the history data, for each target person, to calculate the number of times of multiple registration, which is the number of days in which the operation input is repeated many times in one day out of the predetermined number of days,
When the number of multiple registrations is greater than a preset determination value, it is determined that notification of a dementia warning message is necessary,
When the number of multiple registrations is less than a predetermined determination value, the number of registration forgets, which is the number of days for which operation input is forgotten next, is calculated,
If the number of forgetting registration is greater than a judgment value, it is judged that notification of a forgetfulness warning message is necessary,
If the number of forgotten registrations is less than a determination value, a standard deviation that is a variation in registration time within a predetermined number of days is further calculated, and if the standard deviation is greater than a determination value, it is determined that notification of a physical condition warning message is necessary < Dementia prediction program. Using the dementia prediction system according to claim 1 or 2,
Stored in the storage unit input information Readers contains historical data date is registered that the operation input to the target terminal for each of the subject,
The history data is acquired from the storage unit by the input information acquisition unit,
Based on the history data acquired by the input information acquisition unit, whether or not the number of multiple registration multiple registrations is greater than a predetermined determination value is a dementia possibility determination criterion. Determined by the possibility determination unit,
A dementia prediction method that outputs a dementia warning message for notifying that there is a possibility of dementia by the dementia possibility notification unit, if the dementia possibility corresponding criteria are met,
The dementia possibility determination unit,
Based on the history data, for each target person, to calculate the number of times of multiple registration, which is the number of days in which the operation input is repeated many times in one day out of the predetermined number of days,
When the number of multiple registrations is greater than a preset determination value, it is determined that notification of a dementia warning message is necessary,
When the number of multiple registrations is less than a predetermined determination value, the number of registration forgets, which is the number of days for which operation input is forgotten next, is calculated,
If the number of forgetting registration is greater than a judgment value, it is judged that notification of a forgetfulness warning message is necessary,
If the number of forgotten registrations is less than a determination value, a standard deviation that is a variation in registration time within a predetermined number of days is further calculated, and if the standard deviation is greater than a determination value, it is determined that notification of a physical condition warning message is necessary. Dementia prediction method.

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