KR20220097616A - Smart shoes and care system for dementia patient - Google Patents

Abstract

The present invention relates to smart shoes and a system for care of patients with dementia, comprising: a sensing module; a communication module; a management server; and a guardian terminal. According to the present invention, when applied to patients in the early stages of dementia or patients suspected of dementia, dementia can be predicted, such that early treatment and prevention of dementia can be performed, and missing people due to dementia can be found at an early stage.

Description

Smart shoes and system for the care of dementia patients {SMART SHOES AND CARE SYSTEM FOR DEMENTIA PATIENT}

The present invention relates to a dementia patient management system, and in particular, it is possible to maximize the wearing rate by mounting the detection module on the outsole or insole of the shoe, and it is possible to detect whether or not wandering using a gait pattern in real time, as well as falling and It relates to smart shoes and systems for caring for dementia patients that can detect safety accidents such as falls and respond immediately.

Dementia caused by various causes, such as Alzheimer's disease and cerebrovascular disease, is accompanied by cognitive dysfunction. Therefore, although there is a difference in degree, in many cases it is difficult for patients to maintain their daily life by themselves, so thorough protection of caregivers is required. It is becoming a social problem.

To this end, a dementia patient is put on a walking sensor or a dementia identification tag, which is a type of portable location tracking device, and when the dementia patient deviates from the protection range, the location of the wandering sensor worn by the patient is tracked or the discoverer checks the identification tag, etc. method has been proposed.

However, the conventionally proposed loitering sensors such as bracelets, necklaces or smart watches have the disadvantage that dementia patients can easily remove them from their bodies, and in particular, dementia patients themselves or their guardians are reluctant to expose their dementia to others. Bracelets, necklaces, etc. are reluctant to wear, so there is a problem that the wear rate is remarkably low. In addition, in the case of a smart watch, there is a problem that the price is relatively high and the battery life time is relatively short.

Above all, since the conventional wandering sensor judges whether a person is wandering based on the current location of the dementia patient, it cannot be recognized immediately when wandering in the safe area, and only after checking the accumulated movement path Therefore, there is a problem that the safety of dementia patients cannot be guaranteed even within a safe area, and there is a disadvantage that early detection or prevention of dementia is impossible.

Furthermore, it is not possible to detect frequent safety accidents such as falls or falls of dementia patients, so countermeasures are urgently needed.

Patent Registration No. 10-1483288

Therefore, an object of the present invention is to maximize the wear rate by installing the sensing module on the outsole or insole of the shoe, and to minimize the manufacturing and maintenance cost to maximize the penetration rate, thereby preventing and managing dementia as well as early detection of missing persons due to dementia. It is to provide smart shoes and systems for the care of dementia patients.

In addition, another object of the present invention is that it is possible to determine with high reliability whether walking, falling, or falling based on acceleration data, so that the type and number of sensors can be minimized to reduce manufacturing costs. To provide smart shoes and systems.

In addition, another object of the present invention is to provide a smart shoe and system for the care of dementia patients that can respond to emergency situations by transmitting abnormalities to the emergency rescue server even when a notification signal is not confirmed from the guardian's terminal when an abnormal situation such as wandering occurs. is to provide

The above object, according to an embodiment of the present invention, a sensing module for measuring raw data (raw data) when the wearer of the shoe walks; a communication module for transmitting the raw data to the outside; a management server that determines whether or not the wearer walks on the basis of the received raw data; When it is determined that the wearer's loitering gait is determined, a guardian terminal that receives a notification signal from the management server; includes, wherein the raw data includes acceleration data in the x, y and z axes measured when the wearer walks, and , the management server, based on the raw data, the wearer's stride length, step width, steps per minute (cadence), a first walk comprising at least one of walking speed (walking speed) When the gait direction calculated from three consecutive gaits based on the calculation of the state information and the first gait state information is changed more than three times in ten consecutive gaits, it is determined as the loitering gait and the notification to the guardian terminal This is achieved by smart shoes and systems for caring for dementia patients that transmit signals.

On the other hand, the above object, according to another embodiment of the present invention, a sensing module for measuring raw data when the wearer of the shoe walks; a communication module for transmitting the raw data to the outside; a management server that determines the wearer's fall based on the received raw data; When it is determined that the wearer falls, a guardian terminal that receives a notification signal from the management server; includes, wherein the detection module is provided with a 3-axis (x, y, z) acceleration sensor that detects the wearer's movement, When the first signal value calculated based on the raw data is greater than or equal to a set first reference value, the management server determines the wearer's movement and calculates a second signal value based on the raw data, and the second signal value Smart shoes and systems for caring for dementia patients that determine a fall and transmit the notification signal to the guardian terminal when the third signal value based on the raw data is less than or equal to the set third reference value during the set reference time when it is greater than or equal to the set second reference value is also achieved by

Here, the first signal value is provided as a voltage value generated according to the acceleration generated by the acceleration sensor in each axis (x, y, z), and the first reference value is whether the wearer moves in response to the generated voltage value is provided as a threshold voltage value for judging, the second signal value is provided as a measured acceleration value measured for each axis, and the second reference value determines the wearer's fall motion in response to the second signal value is provided as a threshold acceleration value for It may be provided as a minimum acceleration value after a fall for the wearer to determine whether the movement is less than a reference value after determining the movement of the fall in response to the measured acceleration value after the fall.

On the other hand, the above object, according to another embodiment of the present invention, a sensing module for measuring raw data (raw data) when the wearer of the shoe walks; a communication module for transmitting the raw data to the outside; a management server that determines the wearer's fall based on the received raw data; When it is determined that the wearer falls, a guardian terminal that receives a notification signal from the management server; Including, wherein the raw data includes acceleration data in the x, y and z axes measured when the wearer walks, the The management server calculates the x-axis acceleration change amount and the y-axis acceleration change amount based on the raw data, and at least one of the respective x-axis acceleration change amount or the y-axis acceleration change amount exceeds each set threshold acceleration change amount. It is also achieved by smart shoes and systems for caring for dementia patients that determine and transmit the notification signal to the guardian terminal.

In addition, the above object, according to another embodiment of the present invention, a sensing module for measuring raw data when the wearer of the shoe walks; a communication module for transmitting the raw data to the outside; a management server that determines the wearer's fall based on the received raw data; When it is determined that the wearer falls, a guardian terminal that receives a notification signal from the management server; Including, wherein the raw data includes acceleration data in the x, y and z axes measured when the wearer walks, the The management server calculates an average angular velocity change per second from the accumulated acceleration data, determines that the real-time angular velocity change in real time calculated from the received acceleration data falls over the average acceleration change, and transmits the notification signal to the guardian terminal. This is also achieved by smart shoes and systems for caring for dementia patients.

On the other hand, the above object, according to another embodiment of the present invention, a sensing module for measuring raw data when the wearer of the shoe is walking, a communication module, and whether the wearer walks loaming based on the raw data a smart shoe in which the control unit for determining is mounted on either the outsole or the insole of the shoe; a management server communicating with the communication module through a wired/wireless network; When it is determined that the wearer's loitering gait is determined, a guardian terminal that receives a notification signal from the management server; includes, wherein the raw data includes acceleration data in the x, y and z axes measured when the wearer walks, and , the controller, based on the raw data, the wearer's stride length, step width, steps per minute (cadence), a first walking state comprising at least one of walking speed (walking speed) Information is calculated and, based on the first gait state information, if the gait direction calculated from three consecutive gaits is changed 3 or more times in ten consecutive gaits, it is determined as the loitering gait, and through the management server It is also achieved by smart shoes and systems for caring for dementia patients that transmit the notification signal to the guardian's terminal.

On the other hand, the above object, according to another embodiment of the present invention, a sensing module for measuring raw data when the wearer of the shoe is walking, a communication module, and determining a fall of the wearer based on the raw data a smart shoe in which the control unit is mounted on either the outsole or the insole of the shoe; a management server communicating with the communication module through a wired/wireless network; When it is determined that the wearer falls, a guardian terminal that receives a notification signal from the management server; includes, wherein the detection module is provided with a 3-axis (x, y, z) acceleration sensor that detects the wearer's movement, When the first signal value calculated based on the raw data is greater than or equal to a set first reference value, the controller determines that the wearer is moving and calculates a second signal value based on the raw data, and the second signal value is Dementia patient care that transmits the notification signal to the guardian terminal through the management server by judging as a fall if the third signal value based on the raw data is less than or equal to the set third reference value during the set reference time when it is greater than or equal to the set second reference value It is also achieved by smart shoes and systems for

In each of the above-described embodiments, the detection module further includes a GPS sensor, and the management server is provided to confirm whether the notification signal transmitted to the guardian terminal is confirmed, and a confirmation limit set after transmitting the notification signal When the notification signal is not confirmed by the guardian terminal during the reference period, the stored personal information of the wearer and the current location information of the wearer measured by the GPS sensor may be transmitted to the emergency rescue server.

In each of the above-described embodiments, the sensing module and the communication module may be installed in any one of an outsole of the shoe or an insole that is mounted and detached inside the shoe.

In each of the above-described embodiments, further comprising a battery for supplying power to the sensing module and the communication module, wherein the battery is provided to be replaceable, is provided to be chargeable by an external power source, or further comprises a piezoelectric element It may be provided in any one of the methods of charging the battery by an energy recovery method using the piezoelectric element.

Therefore, according to the smart shoe and system for caring for dementia patients according to the present invention, the sense of rejection is minimized by mounting the sensing module on the outsole or insole of the shoe. It can be applied to footwear and maximizes the wear rate and dissemination rate, so it has the advantage of preventing and managing dementia as well as early detection of missing persons due to dementia.

In addition, according to the smart shoe and system for caring for dementia patients according to the present invention, it is possible to determine with high reliability whether walking, falling, or falling based on acceleration data, so the manufacturing cost can be reduced by minimizing the type and number of sensors. can save

In addition, when applied to patients with early stage dementia or suspected patients, it is possible to predict dementia, enabling early treatment and prevention of dementia. have.

In addition, according to the smart shoes and system for caring for dementia patients according to the present invention, when an abnormal situation such as wandering occurs, even if a notification signal is not confirmed from the guardian's terminal, it is possible to respond to an emergency by transmitting the abnormality to the emergency rescue server. There are advantages.

1 is a block diagram of a smart shoe and system for caring for a dementia patient according to an embodiment of the present invention;
2 is a perspective view of a smart shoe according to an embodiment of the present invention;
3 is a plan view of a smart shoe insole according to an embodiment of the present invention;
4 is a flowchart showing the steps of detecting and determining a fall according to an embodiment of the present invention;
5 to 7 are screen examples of a guardian terminal in which functions of smart shoes and systems for caring for dementia patients according to various embodiments of the present invention are implemented.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The following embodiments are provided so that the technical spirit of the present invention can be clearly and completely understood, and the present invention is not limited to the presented embodiments and may be embodied in various other forms.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention.

That is, in this specification, the singular expression includes the plural expression unless the context clearly dictates otherwise. In addition, in this specification, terms such as 'comprising' or 'having' are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other It is not intended to exclude the possibility of the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof, and should therefore be construed as not excluding them unless specifically stated otherwise for such exclusion.

~1~, ~2~, etc. described in this specification are only referred to to distinguish different components from each other, are not limited to the order of manufacture, and the names do not match in the detailed description and claims of the invention it may not be

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. Accordingly, when an element is referred to as "connected to" another element, it may be directly connected to the other element, unless the expression is "directly connected to" the other element. It should be construed that the component may exist. Also, in the specification, the singular includes the plural unless specifically stated otherwise in the text.

Meanwhile, all terms (including technical and scientific terms) used basically have the same meanings as commonly understood by those of ordinary skill in the art to which the present invention belongs, unless otherwise defined. However, each of the terms to be described later is defined in consideration of the function in the embodiment of the present invention, which may vary depending on the intention or custom of the user or operator, so a clear definition of the term is based on the content throughout this specification. should be interpreted first.

Hereinafter, each embodiment will be described with reference to the drawings schematically showing the embodiments of the present invention.

1 shows the configuration of a smart shoe and system 1 for caring for a dementia patient according to an embodiment of the present invention.

A smart shoe and system 1 for caring for a dementia patient according to this embodiment includes a smart shoe 10 equipped with a sensing module 11 and a communication module 13, a smart shoe 10 through a wired/wireless communication network network, and It includes a connected management server 30 and a guardian terminal 50, and an emergency rescue server 40 may be additionally provided.

The smart shoe 10 includes a sensing module 11 and a communication module 13 .

In the smart shoe 10 according to the present invention, the sensing module 11 and the communication module 13 may be provided on the outsole 102 of the shoe as shown in FIG. 2, or the insole ( It may be provided on the insole, insole, 101). Here, FIG. 3 shows a case in which the substrate (M, including the sensing module 11 and the communication module 13) is provided on the insole 101, and this module M is the outsole 102 of FIG. can also be provided.

As in the latter case, when the sensing module 11 and the communication module 13 are provided in the insole 101 of the shoe, the wearer can use the insole 101 in various shoes, thereby maximizing the utility and cost. This has the advantage of being reduced.

Accordingly, the smart shoes and system for caring for dementia patients according to the present invention increase the wearing rate by mounting them on the outsole or insole of the smart shoe, and in particular, when provided in the insole, it can be applied to various shoes, thereby economically advantageous.

Hereinafter, 'smart shoes' in this specification includes all cases applied to the outsole and the insole, unless there is a special exception.

On the other hand, as shown in FIG. 3, when the sensing module 11, the communication module 13, the battery 15, which will be described later, the piezoelectric element 17, etc. are integrated into a single board M, etc., manufacturing and It is easy to install, so it is possible to minimize the manufacturing cost, and there is an effect that the degree of freedom in design is improved, such as adding various sensors or controllers. The substrate M may be provided as, for example, a flexible substrate or a film, and may include a plurality of wirings.

The sensing module 11 measures raw data when the shoe wearer walks.

In the present invention, the raw data is based on acceleration data along the x, y, and z axes, and an angular velocity or an inclination angle in each axis may be calculated through the acceleration data, or additionally other types of sensors can also be added.

In the detection module 11, various types of sensors may be provided in various numbers, and one type may be provided in plurality.

The detection module 11 may include, for example, a motion sensor.

The motion sensor detects the position or movement of the smart shoe 10 , and may be specifically provided as an acceleration sensor or a gyro sensor.

An acceleration sensor that can be used in a motion sensor is a device that converts an acceleration change in one direction into an electrical signal, and is usually configured by mounting two or three axes in one package. The gyro sensor is a sensor that measures angular velocity, and may detect a direction returned to a reference direction. Pitch, roll, and yaw can be calculated from the sensing data of the motion sensor, and other features can be extracted.

The detection module 11 may further include a GPS sensor. The GPS sensor measures the current location of the wearer wearing the smart shoes 10 . The current location of the wearer can be checked in real time through the guardian terminal 50 through the management server 30, and can receive a notification signal when out of the safe zone. In addition, it may be used for health management purposes such as daily, weekly or monthly exercise amount and exercise distance of dementia patients.

The communication module 13 transmits the raw data to the management server 30 through a wired/wireless network.

The communication module 13 may be provided without limitation using a variety of known types and communication protocols. For example, according to a communication standard such as Bluetooth, Radio Frequency Indentification (RFID), Ultra Wideband (UFD), ZigBee, Lora module, etc., it may be network-connected with other electronic devices or servers. Here, when the Lora module (Long Range), which is a low-power long-distance communication protocol, is used, there is an advantage of reducing power consumption to increase battery usage time and reduce communication costs.

On the other hand, a controller for controlling the detection module 11 and the communication module 13 may be provided separately, in this case, the controller may be configured separately, but the detection module 11 or the communication module 13 and one chip It may be configured in the form of a chip, or it may be mounted on a single substrate.

The smart shoe 10 may further include a battery 15 for supplying power to the sensing module 11 and the communication module 13 .

The battery 15 may be provided to be replaceable, or may be provided to be charged in various ways such as wired or wireless (including contact or non-contact) to an external power source. Alternatively, the piezoelectric element 17 may be additionally provided to recover the pressure applied to the piezoelectric element 17 as energy when the wearer walks, and it may be provided as a method of self-charging.

Meanwhile, the smart shoe 10 according to the present invention may further include a memory (not shown) for storing various data such as raw data measured by the sensing module 11 and/or data for state determination. have.

The guardian terminal 50 receives the notification signal from the management server 30 . The guardian terminal 50 may be provided with a variety of known devices, for example, may be provided with a mobile phone, a smart phone, a tablet PC, or a computer.

When the guardian terminal 50 is provided with a smartphone or tablet PC, it is portable and thus the notification signal can be checked at all times, and additional information such as the wearer's current location and detection record of wandering can be displayed in real time through the touch screen. There are advantages to be found.

For example, various types of applications may be installed in the guardian terminal 50 to efficiently utilize the smart shoes and system 1 for caring for dementia patients according to the present invention, and as shown in FIG. 5 , Through the application, the safe zone departure record, the wandering detection record, or the fall or fall detection record can be implemented in real time or to check the history.

The management server 30 receives the raw data from the communication module 13, calculates various types of gait information based on this, determines the wearer's wandering, falls, or falls according to the set criteria, and informs the guardian terminal of this. .

Hereinafter, the mutual operation process of each of the above-described components will be described separately for each embodiment.

The smart shoe and system 1 for caring for a dementia patient according to the first embodiment of the present invention transmit raw data measured through the sensing module 11 mounted on the smart shoe 10 through the communication module 13 . It is transmitted to the management server 30, and the management server 30 determines whether or not the wearer is loitering based on the raw data, and when it is determined that the wearer is loaming, a notification signal is transmitted to the guardian terminal 50.

In the present embodiment, the raw data measured by the sensing module 11 is provided as acceleration data in the x, y, and z axes measured when the wearer walks.

The management server 30 receives the three-axis acceleration data and calculates first gait state information related to the gait pattern of the wearer.

The first walking state information includes any one or two or more of a stride length, a step width, a number of steps per minute (cadence), and a walking speed. Here, the management server 30, the gait (or the gait, the distance between the wearer's one heel to the next same heel), the stride length (or guarantee, the distance between one heel and the other heel) ), the number of steps per minute (or the number of steps per minute, the number of steps per minute) and the walking speed (the value obtained by dividing the stride length by the set time) are calculated and stored by time, and the wearer's gait through the accumulated data The temporal change of the pattern can be traced.

Alternatively, the management server 30 may perform machine learning using the analysis module on the accumulated data of multiple wearers, and use these results to determine whether a specific wearer has dementia, predict dementia, or determine whether dementia worsens Also, the type of dementia (eg, Alzheimer's disease, alcoholism, vitamin deficiency or vascular dementia, etc.) may be determined.

The management server 30, based on the first gait state information, when the gait direction calculated from the wearer's three consecutive gaits is changed three or more times in ten consecutive gaits, it can be determined as a wandering gait.

Here, the criterion for determining the loitering gait can be changed and adjusted according to various conditions, such as the wearer's state or geographical characteristics where the wearer is located. For example, the number of gait changes determined as wandering gait may be increased or decreased according to the wearer's degree of dementia progression. Alternatively, the management server 30 may determine the dementia stage according to the wandering gait frequency, and automatically set the number of gait changes set according to the determined dementia stage.

When the management server 30 determines that it is loitering, it transmits a notification signal whether the wearer is roaming to the set guardian terminal 50, and the guardian checks whether or not roaming through the guardian terminal 50, and a dedicated application, etc. It can respond by checking the wearer's location.

Accordingly, according to the smart shoe and system for caring for a dementia patient according to the first embodiment of the present invention, it is possible to determine with high reliability whether to walk or not based on the acceleration data, so the manufacturing cost is minimized by minimizing the type and number of sensors while reducing the cost, the penetration rate can be improved.

In addition, when applied to patients with early stage dementia or suspected patients, it is possible to predict dementia, enabling early treatment and prevention of dementia. have

On the other hand, the management server 30 may be provided to check whether the notification signal transmitted to the guardian terminal 50 is confirmed. For example, when a notification signal is transmitted by text (mms, etc.) from the management server 30 to the guardian terminal 50, when the guardian terminal 50 confirms the text, a reception confirmation signal is transmitted to the management server 30 It can also be sent to Alternatively, when a dedicated application is installed in the guardian terminal 50, when the guardian terminal 50 accesses the dedicated application according to the notification signal, the management server 30 may determine that the notification signal has been confirmed.

The management server 30 may transmit the notification signal to the emergency rescue server 40 if the notification signal is not confirmed by the guardian terminal 50 during the confirmation threshold set after the notification signal transmission.

The confirmation limit criterion may be provided in various ways, for example, it may be set as the confirmation limit time until the guardian terminal 50 confirms the notification signal after the notification signal is transmitted. Accordingly, when the notification signal is not confirmed until the confirmation limit time has elapsed, the management server 30 may transmit the wearer's personal information and the wearer's current location information stored to the emergency rescue server 40 . . (Here, the detection module 11 may further include a GPS sensor.)

Alternatively, the confirmation limit criterion may be provided, for example, by the number of loitering limits. Accordingly, although the wearer's wandering is repeated three or more times and the management server 30 transmits the notification signal, the notification signal from the guardian terminal 50 until the limited number of times (for example, the wandering repeats 5 times) If not confirmed, the management server 30 may transmit the wearer's personal information and the wearer's current location information stored to the emergency rescue server 40 .

Here, of course, the confirmation limit criterion may be provided in various ways other than the above-described examples, and the transmission contents transmitted by the management server 30 to the emergency rescue server 40 are also various information that can identify the wearer and the current location as much as possible. (For example, the wearer's photo, name, guardian contact information, etc.) may be provided as a matter of course.

Meanwhile, as shown in FIG. 7 , whether the emergency message is sent or not may be provided so that the guardian can select it through the guardian terminal 50 .

Here, the emergency rescue server 40 is provided as a server of an institution that can respond to an emergency situation of a dementia patient, such as, for example, a 112 server or a 119 server.

Hereinafter, the configuration related to the above-described emergency rescue may be equally applied to each embodiment to be described later.

Accordingly, according to the smart shoes and system for caring for dementia patients according to the first embodiment of the present invention, when an abnormal situation such as wandering occurs, even when a notification signal is not confirmed from the guardian's terminal, the abnormality is transmitted to the emergency rescue server situation can be dealt with.

A smart shoe and system 1 for caring for a dementia patient according to a second embodiment of the present invention transmits raw data measured through the sensing module 11 mounted on the smart shoe 10 through the communication module 13 . It is transmitted to the management server 30 , and the management server 30 determines whether the wearer has fallen based on the raw data, and when it is determined that the wearer has fallen, a notification signal is transmitted to the guardian terminal 50 .

Hereinafter, descriptions overlapping with those in the first embodiment will be omitted, and differences in the present embodiment will be mainly described.

In the present embodiment, the sensing module 11 may be provided as a 3-axis (x, y, z) acceleration sensor that detects the movement of the wearer.

Here, the management server 30 may determine the wearer's fall by using the raw data detected by the acceleration sensor, such as acceleration measurement values in each direction of the x, y, and z axes, or voltage values measured when the acceleration occurs.

When the management server 30 determines the wearer's fall using the raw data, various measured values or various calculated values calculated therefrom may be used, and various methods using these may be used.

For example, the management server 30 first determines whether the wearer is walking, and if excessive movement greater than a set value is determined while walking, preliminarily determines the fall, and then the wearer's movement after the fall is maintained for a set time. If it is not detected, it can be judged as a fall.

When the embodiment is described in detail using FIG. 4 , first, the management server 30 determines that the wearer is walking when the first signal value calculated based on the raw data is greater than or equal to the set first reference value. Confirm (S10). This is to improve the reliability of the fall determination since most falls occur when the wearer is moving, such as walking, but this step can be omitted if necessary.

Here, the first signal value is provided as a voltage value generated according to the acceleration generated by the acceleration sensor in each axis (x, y, z), and the first reference value is whether the wearer moves in response to the generated voltage value It may be provided as a threshold voltage value for determining . For example, if the generated voltage value has an average voltage value of 1.6V when no acceleration occurs in the acceleration sensor (ie, no movement of the wearer), the first reference value is, for example, the average It can be set to 1.7V, which is close to the voltage value. Accordingly, when the first signal value (generated voltage value) exceeds the first reference value (threshold voltage value), the management server 30 determines that the wearer is walking.

Next, when it is determined that the wearer is walking, the management server 30 calculates a second signal value based on the raw data, and if the second signal value is greater than or equal to a set second reference value, it is preliminarily determined to fall (S20).

The second signal value may be provided in various types, for example, it may be provided as a measured acceleration value measured for each axis. In this case, the second reference value may be provided as a threshold acceleration value for determining the wearer's falling motion in response to the second signal value. Here, the first signal value and the second signal value compare the voltage value or acceleration value of each of the three axes individually with the corresponding first and second reference values (for example, the x-axis generated voltage value and the x-axis threshold voltage value), but various modifications are possible, such as calculating the average value of the voltage values (or acceleration values) of each of the three axes to compare. The second reference value can be set in various ways, and can be adjusted post-mortem by tracking the second signal value in case of a fall accident occurring from a plurality of dementia patients.

When the management server 30 preliminarily determines the fall, it is determined whether the wearer's movement occurs for a set time (S40). In general, in the case of a fall, it is usually impossible to walk normally due to physical damage or fainting of the wearer, so it is determined as a fall only when there is no movement or weak movement below the standard by detecting the wearer's movement. .

For example, when the fall motion is determined in step S20, the management server 30 operates a timer (S30), and the third signal value measured (or calculated) for the set reference time To is less than the third reference value. In this case, the fall is the final decision.

Here, the third signal value may be provided as a post-fall measurement acceleration value measured for the reference time after the second signal value exceeds the second reference value, and the third reference value is the post-fall measurement acceleration value Correspondingly, it may be provided as a minimum acceleration value after a fall for determining whether the wearer's movement is less than or equal to a reference value after determining the movement of the fall.

Of course, the third signal value may be provided as a measured voltage value in the same manner as the first signal value in addition to the measured acceleration value. In this case, the third reference value is also provided as a threshold voltage value. For example, the third reference value may be provided to be the same as the first reference value or to be set higher than the first reference value, and the value may be adjusted in various ways.

In this embodiment, the management server 30 can detect a fall in various methods other than the above-described examples. For example, the management server 30 receives the 3-axis acceleration data to determine the wearer's gait pattern and It is possible to calculate the related second gait state information.

The second gait state information can be provided in various ways, for example, one or more of the corrected acceleration (g), angular velocity change per second, or angular change amount corrected in units of gravitational acceleration (g) based on the raw data. may include

Accordingly, the management server 30 may determine a fall if any one of the calculated second gait state information is equal to or greater than the set fall reference value.

That is, in the case of a fall, a different aspect from the normal gait pattern appears, for example, a gait speed greater than or equal to the normal gait speed is calculated, or a gait greater than the normal gait distance or a direction different from the normal gait direction (perpendicular to the ground). direction, etc.), so the fall reference value of each second gait state information is set accordingly, and if a gait greater than the fall reference value is calculated for any one of the second gait state information, it can be determined as a fall. have.

The fall reference value may be provided in various ways, for example, the average second gait state information may be calculated from the accumulated raw data of the wearer and the fall reference value may be set therefrom, and in the case of past falls of multiple wearers, the The fall reference value may be set from the second walking state information. (See Fig. 4 (b))

The fall reference value set by the various methods described above may be, for example, the corrected acceleration is 2.5 g or more, the angular velocity change per second is 100 degree/s or more, or the angular change amount is 22 degrees or more.

Thereafter, the configuration of the notification signal transmission from the management server 30 to the guardian terminal 50 and the transmission configuration to the emergency rescue server 40 are applied in the same manner as in the above-described embodiment, so a description thereof will be omitted.

The smart shoe and system 1 for caring for a dementia patient according to the third embodiment of the present invention transmits raw data measured through the sensing module 11 mounted on the smart shoe 10 through the communication module 13 . It is transmitted to the management server 30, and the management server 30 determines whether the wearer has fallen based on the raw data, and when it is determined that the wearer has fallen, a notification signal is transmitted to the guardian terminal 50.

Hereinafter, descriptions overlapping with those in the first embodiment will be omitted, and differences in the present embodiment will be mainly described.

In the present embodiment, the raw data measured by the sensing module 11 is provided as acceleration data in the x, y, and z axes measured when the wearer walks.

Accordingly, the management server 30 calculates an x-axis acceleration change amount and a y-axis acceleration change amount based on the raw data, and at least one of the respective x-axis acceleration change amount or y-axis acceleration change amount exceeds each set threshold acceleration change amount. , can be judged by the fall.

Here, all of the acceleration variations of the three axes may be used, but various changes are possible, such as using only one or two of them. For example, in general, when a fall occurs, the amount of acceleration change in the x-axis or y-axis direction is relatively large, so only the amount of acceleration change in the x-axis and y-axis directions can be used.

)이 사용될 수 있는 등 다양한 종류로 변환하여 이용할 수 있다. In addition, the SVM (Sum Vector Magnitude) value (

) can be used and converted into various types.

On the other hand, a method for detecting a fall in the management server 30 can be provided in various ways, for example, the management server 30 calculates an average angular velocity change per second or an average angular change amount from the accumulated acceleration data, If any one of the real-time angular velocity change amount per second or the real-time angular change amount calculated from the received acceleration data is equal to or greater than the average angular velocity change amount per second or the average angular change amount, it may be determined as falling. This shows a different aspect from the normal gait pattern when the wearer falls, for example, when an angle change more than the angle required for normal walking appears when the wearer falls forward or backward, the amount of change in angular velocity is also different depending on the falling speed will occur In addition, in the case of falling to the side, the angular direction itself may be changed, or an uncalculated angular velocity change amount may be detected.

Therefore, in order to determine the fall using the acceleration data, it may be necessary to calculate the average angular velocity change per second, the average angular change amount, or reference data for the angular direction from the accumulated raw data of the wearer. Alternatively, the average angular velocity change per second or the average angular change amount may be calculated with reference to the raw data when multiple wearers fall over. It goes without saying that various methods other than the above-described embodiments may be used as the method of setting the average angular velocity change amount per second or the average angular change amount.

Thereafter, the configuration of the notification signal transmission from the management server 30 to the guardian terminal 50 and the transmission configuration to the emergency rescue server 40 are applied in the same manner as in the above-described embodiment, so a description thereof will be omitted.

The smart shoe and system 1 for caring for dementia patients according to the fourth embodiment of the present invention transmits the current location data measured through the sensing module 11 mounted on the smart shoe 10 to the communication module 13 . It is transmitted to the management server 30 through When out of the safe zone, it transmits the notification signal to the guardian terminal (50).

Hereinafter, descriptions overlapping with those in the first embodiment will be omitted, and differences in the present embodiment will be mainly described.

In this embodiment, the detection module 11 is provided with a GPS sensor, the raw data is provided with latitude and longitude data measured by the GPS sensor, and the management server 30 calculates the raw data according to the actual map, The current position data converted to the coordinate values for the current position is calculated.

Accordingly, as shown in FIG. 6 , since the guardian can check the wearer's current location and movement path in the guardian terminal 50 , there is an advantage in that the management of the dementia patient is easy in real time.

In addition, the guardian can set a safe zone (dong, address, etc.) through the guardian terminal 50, and the management server 30 sends the notification signal when the current location data calculated in real time is out of the safe zone. It can be transmitted to the terminal 50 .

Thereafter, the configuration of the notification signal transmission from the management server 30 to the guardian terminal 50 and the transmission configuration to the emergency rescue server 40 are applied in the same manner as in the above-described embodiment, so a description thereof will be omitted.

The smart shoe and system 1 for caring for dementia patients according to the fifth embodiment of the present invention process the raw data in the smart shoe 10 itself or use it to calculate new data to walk, fall or fall judge etc.

To this end, in this embodiment, on the basis of the raw data together with the sensing module 11 and the communication module 13 in either the outsole 102 or the insole 101 of the shoe, the wearer's abnormal behavior (loaming walking, falling) , including a control unit (not shown) for determining (falling, etc.).

In this embodiment, the specific operation of the control unit is different from the operation performed by the management server 30 in the first to fourth embodiments described above, except that the subject is different, but the content is the same, and thus the redundant description thereof will be omitted. decide to do

On the other hand, in this embodiment, the raw data measured by each sensing module 11, the data processed and calculated by each control unit corresponding thereto, the determination result and history of the abnormal behavior, etc. are identification information of the smart shoe 10 may be transmitted and stored separately to the management server 30 together with the management server 30 and the communication module 13 It is provided to enable setting and adjustment of the control unit of each smart shoe 10 through the .

On the other hand, as described above, the processing of the raw data and the determination of the abnormal behavior may all be performed in either the smart shoe 10 or the management server 30, but the function may be distributed to each. Of course. For example, data processing and variable calculation are performed by the control unit of each smart shoe 10 , and when transmitted to the management server 30 , the management server 30 may determine the abnormal behavior.

Although the present invention has been described with reference to limited examples and drawings, the present invention is not limited thereto, and the technical idea and claims of the present invention are provided by those of ordinary skill in the art to which the present invention belongs. It goes without saying that various modifications and variations are possible within the equivalent range.

1: Smart shoes and systems for the care of dementia patients
10: Smart Shoes
101: insole 102: outsole
11: detection module 13: communication module
15: battery 17: piezoelectric element
30: management server 40: emergency rescue server
50: guardian terminal

Claims (10)

a sensing module for measuring raw data when a shoe wearer walks;
a communication module for transmitting the raw data to the outside;
a management server that determines whether or not the wearer walks on the basis of the received raw data;
When it is determined that the wearer's loitering walk is determined, a guardian terminal receiving a notification signal from the management server; Containing,
The raw data includes acceleration data in x, y and z axes measured when the wearer walks,
The management server, based on the raw data, the wearer's stride length, step width, steps per minute (cadence), a first walking state comprising at least one of walking speed (walking speed) Information is calculated, and when the gait direction calculated from three consecutive gaits based on the first gait state information is changed 3 or more times in 10 consecutive gaits, it is determined as the loitering gait and the notification signal to the guardian terminal Smart shoes and systems for caring for dementia patients that transmit a sensing module for measuring raw data when a shoe wearer walks;
a communication module for transmitting the raw data to the outside;
a management server that determines the wearer's fall based on the received raw data;
When it is determined that the wearer falls, a guardian terminal that receives a notification signal from the management server; Containing,
The detection module is provided with a 3-axis (x, y, z) acceleration sensor that detects the movement of the wearer,
When the first signal value calculated based on the raw data is greater than or equal to a set first reference value, the management server determines that the wearer is moving and calculates a second signal value based on the raw data, and the second signal value Smart shoes and system for caring for dementia patients that determine a fall and transmit the notification signal to the guardian terminal when the third signal value based on the raw data is less than or equal to the set third reference value during the set reference time when it is greater than or equal to the set second reference value . 3. The method of claim 2,
The first signal value is provided as a generated voltage value according to the acceleration generated by the acceleration sensor in each axis (x, y, z), and the first reference value determines whether the wearer moves in response to the generated voltage value is provided as a threshold voltage value for It is provided as a threshold acceleration value, and the third signal value is provided as a post-fall measurement acceleration value measured during the reference time after the second signal value exceeds the second reference value, and the third reference value is after the fall. A smart shoe and system for caring for a dementia patient provided as a minimum acceleration value after a fall for determining whether a movement is less than a reference value after the wearer determines the movement of the fall in response to the measured acceleration value. a sensing module for measuring raw data when a shoe wearer walks;
a communication module for transmitting the raw data to the outside;
a management server that determines the wearer's fall based on the received raw data;
When it is determined that the wearer falls, a guardian terminal that receives a notification signal from the management server; including,
The raw data includes acceleration data in x, y and z axes measured when the wearer walks,
The management server calculates an x-axis acceleration change amount and a y-axis acceleration change amount based on the raw data, and at least one of the respective x-axis acceleration change amount or y-axis acceleration change amount exceeds each set threshold acceleration change amount, falling Smart shoes and systems for caring for dementia patients that determine to transmit the notification signal to the guardian terminal. a sensing module for measuring raw data when a shoe wearer walks;
a communication module for transmitting the raw data to the outside;
a management server that determines the wearer's fall based on the received raw data;
When it is determined that the wearer falls, a guardian terminal that receives a notification signal from the management server; including,
The raw data includes acceleration data in x, y and z axes measured when the wearer walks,
The management server calculates an average angular velocity change per second from the accumulated acceleration data, determines that the real-time angular velocity change per second calculated from the received acceleration data falls over the average acceleration change, and sends the notification signal to the guardian terminal Smart shoes and systems for caring for dementia patients. A sensing module for measuring raw data when the wearer of the shoe is walking, a communication module, and a control unit for determining whether the wearer is loitering based on the raw data are mounted on either the outsole or the insole of the shoe with smart shoes;
a management server communicating with the communication module through a wired/wireless network;
When it is determined that the wearer's loitering walk is determined, a guardian terminal receiving a notification signal from the management server; Containing,
The raw data includes acceleration data in x, y and z axes measured when the wearer walks,
The control unit, based on the raw data, the wearer's stride length, step width (step width), steps per minute (cadence), first gait state information including at least one of walking speed (walking speed) , and if the gait direction calculated from three consecutive gaits based on the first gait state information is changed 3 or more times in 10 consecutive gaits, it is determined as the loitering gait, and the guardian through the management server Smart shoes and systems for caring for dementia patients that transmit the notification signal to a terminal. A sensing module for measuring raw data when a wearer of a shoe is walking, a communication module, and a control unit for determining a fall of the wearer based on the raw data are mounted on either the outsole or the insole of the shoe. shoes;
a management server communicating with the communication module through a wired/wireless network;
When it is determined that the wearer falls, a guardian terminal that receives a notification signal from the management server; Containing,
The detection module is provided with a 3-axis (x, y, z) acceleration sensor that detects the movement of the wearer,
When the first signal value calculated based on the raw data is greater than or equal to a set first reference value, the controller determines that the wearer's movement is the same and calculates a second signal value based on the raw data, and the second signal value is Dementia patient care to transmit the notification signal to the guardian terminal through the management server by judging as a fall if the third signal value based on the raw data is less than or equal to the set third reference value during the set reference time when it is greater than or equal to the set second reference value smart shoes and systems for 8. The method according to any one of claims 1 to 7,
The detection module further comprises a GPS sensor,
The management server is provided to confirm whether the notification signal transmitted to the guardian terminal is confirmed, and when the notification signal is not confirmed in the guardian terminal during the confirmation threshold set after the notification signal transmission, the stored wearer Smart shoes and systems for caring for dementia patients that transmit personal information of the wearer and the current location information of the wearer measured by the GPS sensor to an emergency rescue server. 6. The method according to any one of claims 1 to 5,
The sensing module and the communication module are installed on either an outsole of the shoe or an insole that is mounted and detached inside the shoe and a smart shoe and system for caring for a dementia patient. 8. The method according to any one of claims 1 to 7,
Further comprising a battery for supplying power to the detection module and the communication module,
The battery is provided to be replaceable, is provided to be charged by an external power source, or further includes a piezoelectric element to charge the battery by an energy recovery method using the piezoelectric element. Dementia patient care smart shoes and systems for

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