System for measuring daily life ability of dementia patient by using xr

Abstract

The present invention relates to a system for measuring daily life ability of a dementia patient. The system, which is a device worn on a patient or a guardian, comprises: a wearable device designed to communicate with a server and perform a function necessary for implementing extended reality (XR) content; a terminal capable of communicating with the server through a wired or wireless communication network; and the server for providing XR content enabling interaction through the wearable device while providing XR content capable of measuring daily life ability of a dementia patient, the server transmitting information on the result of measuring the daily life ability of the dementia patient to the terminal. The present invention can advantageously reduce costs and time required for the measurement process, enhance convenience for related personnel including patients and guardians, and improve the accuracy of evaluation.

Description

A system for measuring daily living abilities of dementia patients using XR

[0001] The present invention relates to a technique for measuring daily living abilities of dementia patients.

[0002] Dementia is a phenomenon in which cognitive functions such as memory, comprehension, and judgment decline due to brain activity deterioration caused by aging, various stresses, and feelings of loss.

[0003] In 2000, South Korea entered an aging society with 7.2% of the population aged 65 or older, and it is expected to become a super-aged society in 2026. Accordingly, the number of dementia patients is also increasing every year, reaching approximately 1 million in 2030 and approximately 2 million in 2050. Since 10-15% of patients with mild cognitive impairment, a precursor to dementia, develop dementia every year, the importance of early treatment through appropriate cognitive rehabilitation programs is increasing day by day. As South Korea enters a super-aged society, the incidence of mild cognitive impairment and dementia, which are geriatric diseases, is also steadily increasing.

[0004] As people age, their physical functions gradually decline, and among them, cognitive function, which is a representative high-level function of the brain, also declines with age. Cognitive impairment refers to impairment in cognitive functions (memory, executive function, and language function), and mild cognitive impairment refers to a state in which cognitive functions such as memory, executive function, and language function are mildly impaired. Approximately 10-20% of adults over the age of 65 suffer from mild cognitive impairment, a condition that represents an intermediate stage between the general cognitive decline that occurs with normal aging and the severe cognitive decline seen in dementia and Alzheimer's disease. Mild cognitive impairment is difficult to identify because patients with mild cognitive impairment are at least able to lead independent lives, making it difficult to differentiate it from cognitive decline due to normal aging.

[0005] Dementia is a degenerative neurological disease characterized by cognitive impairment that interferes with daily life and social function. Research has shown that individuals with early-onset mild cognitive impairment (MCI) have a lower rate of progression to dementia and often return to normal cognitive function. Because MCI can be caused by a variety of factors, expert evaluation and diagnosis are essential.

[0006] VR (Virtual Reality) refers to an artificial environment that resembles reality but is not real. In VR, the user's field of vision is completely blocked, and only a virtual world is visible. While "virtual reality" includes the word "reality," it is often called "virtual reality" to convey the idea of ​​a completely different reality, distinct from "reality." For example, in VR, a video captured with a 360-degree camera can be provided through an HMD (Head Mount Display).

[0007] Augmented Reality (AR) is a form of virtual reality that combines the user's visual perception of the real world with a virtual world with additional information, presenting it as a single image. AR, which complements the real world with a virtual one, utilizes a computer-generated virtual environment, but the real world itself plays a central role. The computer graphics provide additional information to the real environment, and by overlaying the 3D virtual image onto the live image the user is viewing, the distinction between the real world and the virtual screen is blurred.

[0008] While virtual reality uses virtual images for both the object itself and the background and environment, augmented reality (AR) is a technology that superimposes a 3D virtual image onto a real image or background to display it as a single image.

[0009] Augmented reality is also called mixed reality (MR), and it was first introduced to the world around 1990 when Boeing, an aircraft manufacturer, added virtual images to the airplane assembly process.

[0010] Augmented reality (AR) and virtual reality (VR) may seem similar, but they are clearly distinguished by whether the subject is imaginary or real. For example, in a VR fighting game, a character representing the user battles virtual enemies in a virtual space, while in an AR fighting game, the real user battles virtual enemies in a real space. Therefore, AR has the characteristic of offering a superior sense of realism compared to VR. Furthermore, while VR is generally used in specialized environments such as movies and videos, AR has become widespread enough to be utilized by the general public. For example, searching maps and locations online are also broadly considered AR.

[0011] XR (eXtended Reality) is similar in meaning to “augmented reality” in terms of words, but is technically interpreted in a completely different way, and is generally used to mean all of VR, AR, and MR.

[0012] Assessing the daily living abilities of dementia patients is essential for dementia-related diagnosis, and is also very important for assessing the patient's function in determining the level of disability.

[0013] Previously, tools such as S-ADL (Seoul-Activities of Daily Living) and S-IADL (Seoul-Instrumental Activities of Daily Living) were developed to evaluate the daily living abilities of dementia patients.

[0014] S-ADL (Seoul-Activities of Daily Living) is designed to assess the basic daily activities of dementia patients and evaluates activities necessary for caring for and maintaining the body (eating, walking, bathing, etc.).

[0015] S-IADL (Seoul-Instrumental Activities of Daily Living) diagnoses and evaluates instrumental activities of daily living, that is, activities that require more complex cognitive functions (such as using a telephone, managing money, and using public transportation).

[0016] The S-IADL consists of 15 items, each rated from 0 to 3, for a total score of 45. The tool is divided into "current performance ability" and "potential performance ability," with assessment and interpretation focusing on current performance. When a score of 8 or higher, the S-IADL, is used to diagnose dementia, it has a sensitivity of 83.3% and a specificity of 93.1%.

[0017] In the past, when evaluating the daily living abilities of dementia patients through S-ADL, S-IADL, etc., a professional psychologist met directly with the patient or guardian and conducted the evaluation through a questionnaire. However, this process was too cumbersome, costly, time-consuming, and inconvenient.

[0018] The present invention has been devised to solve the above problems, and its purpose is to provide a system that can easily and simply measure the daily life abilities of dementia patients using XR (extended reality) including VR, AR, and MR.

[0019] The purpose of the present invention is not limited to the purposes mentioned above, and other purposes not mentioned will be clearly understood by those skilled in the art from the description below.

[0020] To achieve the above purpose, the present invention relates to a system for measuring daily life ability of a dementia patient, and includes a wearable device that is worn by a patient or a guardian and communicates with a server and performs functions necessary for implementing XR (eXtended Reality) content, a terminal that can communicate with the server through a wired or wireless communication network, and a server that provides XR content that enables interaction through the wearable device, while providing XR content that can measure the daily life ability of a dementia patient, and transmits information on the results of measuring the daily life ability of a dementia patient to the terminal.

[0021] The above server can provide XR content configured to be suitable for an XR environment based on S-IADL (Seoul-Instrumental Activities of Daily Living) through the wearable device.

[0022] The above server conducts item-by-item tests through XR content, evaluates scores for each item using signals corresponding to patient or guardian interactions received from the wearable device while providing XR content, adds up the scores when tests for all items are completed, and uses the added scores to evaluate the daily living abilities of dementia patients.

[0023] The above server can diagnose the patient with dementia if the total score is above a predetermined standard.

[0024] According to the present invention, by measuring the daily living abilities of dementia patients using XR (extended reality) including VR, AR, and MR, it is possible to save the cost and time required for the measurement process, increase the convenience of patients, their caregivers, and other related personnel, and improve the accuracy of the evaluation.

[0025] Figure 1 is a conceptual schematic diagram of a system for measuring daily living abilities of a dementia patient using XR according to one embodiment of the present invention.

[0026] FIG. 2 illustrates an example of wearing a wearable device in a system for measuring daily life abilities of a dementia patient according to one embodiment of the present invention.

[0027] FIG. 3 is a flowchart illustrating a method for measuring daily life abilities in a system for measuring daily life abilities of a dementia patient using XR according to one embodiment of the present invention.

[0028] Figures 4 to 18 illustrate evaluation items in a system for measuring daily life abilities of dementia patients using XR according to one embodiment of the present invention.

[0029] Figure 1 is a conceptual schematic diagram of a system for measuring daily living abilities of a dementia patient using XR according to one embodiment of the present invention.

[0030] Referring to FIG. 1, a system for measuring daily life ability of a dementia patient using XR according to one embodiment of the present invention includes a wearable device (100), a server (200), and a terminal (300).

[0031] A wearable device (100) is a device worn by a patient or a guardian, communicates with a server (200), and performs functions necessary to implement XR (eXtended Reality) content.

[0032] In one embodiment of the present invention, a wearable device (100) may include an HMD (Head Mounted Display) worn on a patient's head to display XR content, a hand motion recognition sensor for recognizing the patient's hand motion, a body motion recognition sensor for recognizing the patient's body motion, etc. Here, the hand motion recognition sensor may be implemented as a Leap motion, and the body motion recognition sensor may be implemented as a Kinect.

[0033] FIG. 2 illustrates an example of wearing a wearable device in a system for measuring daily life abilities of a dementia patient according to one embodiment of the present invention.

[0034] In the embodiment of Fig. 2, it can be confirmed that the wearable device (100) is implemented as an HMD.

[0035] The terminal (300) is a terminal capable of communicating with the server (200) via a wired or wireless communication network, and is a terminal capable of receiving information on the results of measuring the daily living abilities of a dementia patient from the server (200). For example, the terminal (300) may include a cell phone, a smart phone, a mobile communication terminal, a tablet PC, a desktop computer, a laptop computer, etc.

[0036] The server (200) provides XR content that enables interaction through a wearable device (100), provides XR content that can measure the daily life ability of a dementia patient, and transmits information on the results of measuring the daily life ability of a dementia patient to a terminal (300).

[0037] In one embodiment of the present invention, the server (200) can provide XR content configured to be suitable for an XR environment based on S-IADL (Seoul-Instrumental Activities of Daily Living) through a wearable device (100).

[0038] The server (200) conducts item-by-item tests using XR content, evaluates scores for each item using signals corresponding to patient or guardian interactions received from a wearable device (100) while providing XR content, adds up the scores when all items are tested, and uses the added scores to evaluate the dementia patient's daily living abilities. At this time, the server (200) can diagnose the patient with dementia if the added score is above a predetermined standard.

[0039] FIG. 3 is a flowchart illustrating a method for measuring daily life abilities in a system for measuring daily life abilities of a dementia patient using XR according to one embodiment of the present invention.

[0040] Referring to FIG. 3, the server (200) provides XR content to the wearable device (100) to conduct an item-by-item test (S101, S103), and evaluates a score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing the XR content (S105).

[0041] Then, when the server (200) completes the test for all items, it adds up the scores and uses the total scores to evaluate the daily living ability of the dementia patient (S107).

[0042] The server (200) diagnoses the patient with dementia if the total score is higher than a predetermined standard (S109, S111). In one embodiment of the present invention, the server (200) can provide XR content configured to be suitable for an XR environment based on S-IADL (Seoul-Instrumental Activities of Daily Living) through a wearable device (100). At this time, the XR content can be implemented as content consisting of a total of 15 items, each item evaluated from 0 to 3 points, and the total score is 45 points. In addition, the server (200) can diagnose dementia if the total score is 8 points or higher.

[0043] The present invention is susceptible to various modifications and embodiments. Specific embodiments are illustrated and described in detail in the drawings. However, this is not intended to limit the present invention to specific embodiments, but rather to encompass all modifications, equivalents, and alternatives falling within the spirit and technical scope of the present invention.

[0044] The terminology used in this application is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, it should be understood that the terms "comprise" or "have" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0045] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0046] In addition, when describing with reference to the attached drawings, identical components will be assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted. When describing the present invention, if a detailed description of a related known technology is judged to unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

[0047] The present invention relates to a system for measuring daily living abilities of dementia patients.

[0048] In the present invention, XR (eXtended Reality) is a concept that includes VR (Virtual Reality), AR (Augmented Reality), and MR (Mixed Reality).

[0049] Figure 1 is a conceptual schematic diagram of a system for measuring daily living abilities of a dementia patient using XR according to one embodiment of the present invention.

[0050] Referring to FIG. 1, a system for measuring daily life ability of a dementia patient using XR according to one embodiment of the present invention includes a wearable device (100), a server (200), and a terminal (300).

[0051] A wearable device (100) is a device worn by a patient or a guardian, communicates with a server (200), and performs functions necessary to implement XR (eXtended Reality) content.

[0052] In one embodiment of the present invention, a wearable device (100) may include an HMD (Head Mounted Display) worn on a patient's head to display XR content, a hand motion recognition sensor for recognizing the patient's hand motion, a body motion recognition sensor for recognizing the patient's body motion, etc. Here, the hand motion recognition sensor may be implemented as a Leap motion, and the body motion recognition sensor may be implemented as a Kinect.

[0053] FIG. 2 illustrates an example of wearing a wearable device in a system for measuring daily life abilities of a dementia patient according to one embodiment of the present invention.

[0054] In the embodiment of Fig. 2, it can be confirmed that the wearable device (100) is implemented as an HMD.

[0055] The terminal (300) is a terminal capable of communicating with the server (200) via a wired or wireless communication network, and is a terminal capable of receiving information on the results of measuring the daily living abilities of a dementia patient from the server (200). For example, the terminal (300) may include a cell phone, a smart phone, a mobile communication terminal, a tablet PC, a desktop computer, a laptop computer, etc.

[0056] The server (200) provides XR content that enables interaction through a wearable device (100), provides XR content that can measure the daily life ability of a dementia patient, and transmits information on the results of measuring the daily life ability of a dementia patient to a terminal (300).

[0057] In one embodiment of the present invention, the server (200) can provide XR content configured to be suitable for an XR environment based on S-IADL (Seoul-Instrumental Activities of Daily Living) through a wearable device (100).

[0058] The server (200) conducts item-by-item tests using XR content, evaluates scores for each item using signals corresponding to patient or guardian interactions received from a wearable device (100) while providing XR content, adds up the scores when all items are tested, and uses the added scores to evaluate the dementia patient's daily living abilities. At this time, the server (200) can diagnose the patient with dementia if the added score is above a predetermined standard.

[0059] FIG. 3 is a flowchart illustrating a method for measuring daily life abilities in a system for measuring daily life abilities of a dementia patient using XR according to one embodiment of the present invention.

[0060] Referring to FIG. 3, the server (200) provides XR content to the wearable device (100) to conduct an item-by-item test (S101, S103), and evaluates a score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing the XR content (S105).

[0061] Then, when the server (200) completes the test for all items, it adds up the scores and uses the total scores to evaluate the daily living ability of the dementia patient (S107).

[0062] The server (200) diagnoses the patient with dementia if the total score is higher than a predetermined standard (S109, S111). In one embodiment of the present invention, the server (200) can provide XR content configured to be suitable for an XR environment based on S-IADL (Seoul-Instrumental Activities of Daily Living) through a wearable device (100). At this time, the XR content can be implemented as content consisting of a total of 15 items, each item evaluated from 0 to 3 points, and the total score is 45 points. In addition, the server (200) can diagnose dementia if the total score is 8 points or higher.

[0063]

[0064] Figures 4 to 18 illustrate evaluation items in a system for measuring daily life abilities of dementia patients using XR according to one embodiment of the present invention.

[0065] Figures 4 to 18 are examples of the contents of each item of XR content configured to be suitable for an XR environment based on S-IADL (Seoul-Instrumental Activities of Daily Living), and are examples of XR content consisting of a total of 15 items, each item evaluated from 0 to 3 points, and having a total score of 45 points.

[0066] In the present invention, the server (200) can provide XR content in two ways: patient XR content that evaluates the patient's direct interaction behavior in a given situation, and guardian XR content that allows guardians to respond to a questionnaire in a questionnaire format.

[0067] Figure 4 illustrates an example of a phone call item, designed to measure a patient's ability to use the phone. The scoring for this item is as follows:

[0068] *Call an unknown phone number through 114 guidance or by searching (0 points).

[0069] *You can call familiar phone numbers such as 119 or 112 (1 point).

[0070] *You can't make calls, but you can answer them when they come in (2 points).

[0071] *I can't make or receive calls at all (3 points).

[0072] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0073] Figure 5 illustrates an example of a shopping item. XR content is provided, depicting a scenario where a wearable device (100) requires the user to go to a supermarket and purchase five items. The five items are a toothbrush (KRW 3,000), a bag of apples (KRW 4,000), a bag of potatoes (KRW 5,000), soap (KRW 2,000), and milk (KRW 3,000). The score distribution for this item is as follows:

[0074] *Buy 5 items and pay the exact amount (0 points).

[0075] *Buy some of the 5 items and pay the exact amount (1 point).

[0076] *Failed to pay the exact amount (2 points).

[0077] *Unable to purchase any items (3 points).

[0078] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0079] Figure 6 illustrates an example of a food preparation / cooking item, wherein XR content depicting a kimchi stew-making situation is provided via a wearable device (100). Specifically, the server (200) demonstrates the recipe sequence for making kimchi stew and observes and evaluates the patient's movements. The recipe sequence is "cut kimchi, add pork, add vegetables, chop well, place in a bowl, and eat." The score distribution for this item is as follows.

[0080] *0 points if you follow the recipe order.

[0081] *1 point if you get 2 out of 4 recipes correct.

[0082] *2 points for getting 1 out of 4 recipes correct.

[0083] *3 points if none of them are implemented.

[0084] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0085] Figure 7 is an example of a housework task, showing a disorganized room and providing XR content in which the following tasks unfold: 1) tidying up the bedding, 2) tidying up the room - putting books on the floor back on the bookshelf, 3) tidying up the room - putting clothes hanging on a chair back where they belong, 4) getting a vacuum cleaner, plugging it in, and cleaning the room, 5) unplugging the used vacuum cleaner and putting it back in its place. The score distribution for this task is as follows.

[0086] *0 points if you complete all 5.

[0087] *1 point for performing 3-4 things.

[0088] *2 points for performing 1-2 things.

[0089] *3 points for performing 0.

[0090] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0091] Figure 8 is an example of items for using public transportation, and the specific XR contents are as follows.

[0092] If you are not driving, the server (200) provides XR content via the wearable device (100) that explains how to take a bus from point A to point B and confirms whether you can do so. Here, XR content is provided that unfolds in the following sequence: (1) confirming the bus number for the destination, (2) tapping a card, (3) riding the bus and pressing the bell when reaching the destination, and (4) tapping the card and getting off. The score distribution for this item is as follows.

[0093] * If you perform all four situations above ((1)~(4)), you will receive 0 points.

[0094] * 1 point for performing 2-3.

[0095] * 2 points for completing only 1.

[0096] * 3 points if not performed at all.

[0097] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0098] Figure 9 illustrates a short-distance outing item, providing XR content that provides a map and directions via a wearable device (100) and allows users to check whether they can walk to the destination. The specific details of the XR content provided are as follows.

[0099] 'Come out of the house, (1) walk 30 meters to the right, (2) when you come across a beauty salon, turn left and walk 50 meters. (3) You will see a bank on the right in the middle. If you go that way, (4) you will come to an intersection with a hospital. Turn left again at the intersection and you will see a mart right there.'

[0100] The score distribution for this item is as follows:

[0101] *0 points if you successfully reach your destination alone.

[0102] *1 point if you successfully complete 3 or more of the 4 ((1) to (4)) steps to reach your destination.

[0103] *2 points if you successfully reach your destination by 1-2 steps.

[0104] *3 points if none of the tasks are performed.

[0105] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0106] Figure 10 illustrates an item on taking medication regularly, providing XR content that allows users to check whether they are taking their medication regularly via a wearable device (100). More specifically, the XR content provided is "Taking Medication Regularly: Do you take your medication regularly and in the prescribed amount on your own at the prescribed time?" The scoring for this item is as follows.

[0107] *Take the correct amount of medication at the correct time without assistance (0 points).

[0108] *If you prepare medicine, take it on your own on time (1 point).

[0109] *If you tell them when to take their medicine, they take it by themselves (2 points).

[0110] *Every time you take your medicine, someone else must take care of it (3 points).

[0111] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0112] Figure 11 illustrates a self-management item, offering XR content asking, "Do you manage your own money, such as your allowance, utility bills, bankbook management, and property management?" The scoring for this item is as follows:

[0113] *Can manage money without help and knows how to use it (0 points).

[0114] *You can manage the small daily expenses (side dishes, household items) at home, but you need help with important matters such as paying utility bills or managing money (1 point).

[0115] *Only manages his / her own simple allowance (2 points).

[0116] *I don't manage my money at all (3 points).

[0117] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0118] Figure 12 illustrates the grooming and decoration items, providing XR content asking, "Do you do your own grooming, such as combing your hair, shaving, applying makeup, and cutting your nails?" The scoring for this item is as follows:

[0119] *Find tools (comb, cosmetics, nail clippers, etc.) and groom yourself without help from others (0 points).

[0120] *If you find the tools, he / she will comb, shave / apply makeup, cut his / her nails, etc. by himself / herself (1 point).

[0121] *Even if you find the tools, you will need help with one or two of these (2 points).

[0122] *I can't do all of these things without help from others (3 points).

[0123] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0124] Figure 13 illustrates an example of home appliance usage, with the XR content asking, "Do you use home appliances such as a TV, washing machine, vacuum cleaner, iron, or hair dryer?" The scoring for this item is as follows:

[0125] *It can be turned on and off, and operated by manipulating buttons (0 points).

[0126] *It can be turned on and off, but requires some assistance to operate (1 point).

[0127] *Only turning the power on and off is possible (2 points).

[0128] *Does not use electrical appliances and requires full assistance to use them (3 points).

[0129] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0130] Figure 14 illustrates an item on managing personal belongings, providing XR content asking, "Do you personally manage your personal belongings, such as clothing, glasses, wallet, keys, and cell phone?" The scoring for this item is as follows:

[0131] *Can put his / her belongings in the designated location and find them again without any help (0 points).

[0132] *Sometimes you can't find your belongings (1 point).

[0133] *I often have trouble finding my belongings (2 points).

[0134] *You must always be there to look for your belongings when you can't find them (3 points).

[0135] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0136] Figure 15 illustrates an example of a door lock item, which provides XR content asking, "Do you open or close the door correctly using a key or password?" The scoring for this item is as follows:

[0137] *I can lock doors without help from others (0 points).

[0138] *If you tell him to lock the door, he opens and locks the door by himself (1 point).

[0139] *Although I do check the text, I don't do it properly so I always have to check it (2 points).

[0140] *Does not lock the door (3 points).

[0141] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0142] Figure 16 illustrates an item on keeping promises and meetings, offering XR content asking, "Have you kept all kinds of pre-planned gatherings (such as company outings, picnics, family birthdays, and ancestral rites) with others?" The scoring for this item is as follows:

[0143] *I kept most of my promises by writing them down on my calendar or remembering them well (0 points).

[0144] *I generally remember things well, but sometimes I forget and fail to keep promises (1 point).

[0145] *On the day of the appointment or the day before, you need to be told the appointment time so that you can remember it (2 points).

[0146] *Despite being taught the promise, the child does not remember the promise itself (3 points).

[0147] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0148] Figure 17 illustrates an example of a recent event item, which provides XR content asking, "Do you talk about household events or important domestic news from the past month?" The scoring for this item is as follows:

[0149] *Speak from memory of things you heard indirectly or saw on TV (0 points).

[0150] *I often forget things I've heard, but I talk about things I've seen firsthand (1 point).

[0151] *There are times when I forget things I have seen in person and cannot talk about them (2 points).

[0152] *Cannot talk about recent events at all (3 points).

[0153] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0154] Figure 18 provides an example of leisure activities and hobbies. The XR content asks, "Do you engage in pastimes like playing Hwatu, Janggi, Baduk, knitting, or gardening, or do you engage in leisure activities like drinking or visiting senior centers?" The scoring for this item is as follows:

[0155] *Always doing hobbies you want without any help from others (0 points).

[0156] *I sometimes have hobbies (1 point).

[0157] *My hobbies are quite limited, so at best I go to a senior center and chat (2 points).

[0158] *Does not engage in leisure activities or hobbies (3 points).

[0159] The server (200) evaluates the score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device (100) while providing XR content.

[0160] In this way, in one embodiment of the present invention, XR content can be implemented as content consisting of a total of 15 items, each item being evaluated from 0 to 3 points, and the total score being 45 points.

[0161] And, the server (200) evaluates the score for each item, and when the test for each item is finished, the scores for all items are added up, and if the added score is higher than the standard value (e.g., 8 points), dementia can be diagnosed.

[0162] While the present invention has been described using several preferred embodiments, these embodiments are illustrative and not limiting. Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit and scope of the invention as set forth in the appended claims.

Claims

1. A wearable device worn by a patient or guardian, which communicates with a server and performs functions necessary to implement XR (eXtended Reality) content; A terminal capable of communicating with the server via a wired or wireless communication network; and A server that provides XR content that enables interaction through the wearable device, provides XR content that can measure the daily life ability of a dementia patient, and transmits the information on the results of measuring the daily life ability of a dementia patient to the terminal. A system for measuring daily living abilities of dementia patients, including 2. In claim 1, The above server is a system for measuring daily living abilities of dementia patients, characterized in that it provides XR content configured to be suitable for an XR environment based on S-IADL (Seoul-Instrumental Activities of Daily Living) through the wearable device.

3. In claim 2, A system for measuring daily living abilities of a dementia patient, characterized in that the server conducts a test for each item through XR content, evaluates a score for each item using a signal corresponding to the interaction of the patient or guardian received from the wearable device while providing the XR content, adds up the scores when the test for all items is completed, and uses the total score to evaluate the daily living abilities of the dementia patient.

4. In claim 3, The above server is a system for measuring daily living abilities of a dementia patient, characterized in that it diagnoses the patient with dementia if the total score exceeds a predetermined standard.

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