KR102671552B1 - Fall accident prevention system of smart wheelchair and control method of the same - Google Patents

Abstract

The present invention uses an AI camera, a smart watch worn by a wheelchair occupant, and a fall prevention management server to identify the occupant's health status, falls, and emergency situations in real time, including the electrocardiogram, and to receive medical help from a guardian or nearby related organization as soon as necessary. Provides a fall accident prevention system and control method for smart wheelchairs. A fall accident prevention system for a smart wheelchair according to a suitable embodiment of the present invention includes an AI camera having a motion recognition function and a camera communication module that transmits captured images to a fall prevention management server, an emergency situation display, and an emergency situation voice output. A smart wheelchair equipped with a wheelchair monitor with built-in speakers; It is worn by the rider and has a location information collection unit that collects the rider's location information, an electrocardiogram measurement unit that measures the rider's real-time electrocardiogram, and a watch communication module that transmits the rider's fall information to the guardian's terminal and a fall prevention organization. smart watch; A fall prevention management server that analyzes images received from AI cameras to read emergency situations and communicates with a smart watch to receive location information, electrocardiogram information, and fall information of smart wheelchair occupants to determine the location and health status of the faller; And a guardian terminal that communicates with the fall prevention management server and receives the faller's location information and electrocardiogram information; and when the faller management server recognizes an emergency situation in real time, the smart watch worn by the passenger who fell from the smart wheelchair It is characterized by receiving location information, electrocardiogram information, and fall information from the device, analyzing the location information and health status, and then transmitting an emergency notification signal to the guardian terminal and a fall prevention organization through the watch communication module.

Description

Fall accident prevention system of smart wheelchair and control method of the same}

The present invention relates to a fall accident prevention system for a smart wheelchair and a control method thereof. In particular, the present invention relates to a fall accident prevention system for a smart wheelchair and a method for controlling the same. In particular, the health status, falls, and emergency situations of the occupant, such as the electrocardiogram, are monitored in real time through an AI camera, a smart watch worn by the wheelchair occupant, and a fall prevention management server. This is about a fall accident prevention system and control method for a smart wheelchair that can identify and immediately receive medical help from a guardian or a nearby related organization when necessary.

A person's physical condition is influenced by changes caused by aging itself, physical strength, current diseases and medications used. Weak or impaired physical condition increases the risk of falls. Falls occur due to physical conditions, environmental hazards, or potentially hazardous situations that impair mobility or balance. Falls most often occur when older adults whose motor skills or balance are impaired due to one or more physical conditions encounter environmental hazards. Therefore, it is necessary to respond early to wheelchair fall accidents and emergency situations that occur frequently among the elderly and those with mobility impairments (disabled people with limited mobility, patients in hospitals, etc.). In other words, preventive measures are required to minimize fall damage.

The technology behind the present invention is Korean Patent Registration No. 10-2056022 (Patent Document 1), which proposes a 'wheelchair fall accident response system'. This is so that if a user traveling on the road in a wheelchair has a fall accident due to the wheelchair overturning, etc., they can quickly notify the outside world of the fall accident and receive help. However, the above background technology makes it difficult to recognize obstacles or vehicle collisions that occur while moving and driving the wheelchair, cannot determine the risk of falling according to the occupant's electrocardiogram, and has difficulty tracking the user to a certain distance even after getting off the wheelchair. There are cases where you cannot receive prompt medical help from a guardian or emergency center.

Another technology that forms the background of the present invention is Korean Patent Registration No. 10-1860062 (Patent Document 2), which proposes a 'fall detection system and method.' In order to detect a fall of an object, a plurality of image streams for the object are received from an image collection device that collects images of the object, preprocessed to extract a plurality of posture information, and the object is preset based on the plurality of posture information. A system for checking whether the first condition for changing from the first posture to the second posture within a first time is satisfied, and if the first condition is satisfied, for checking whether the time for taking the second posture is more than a preset second time. It is checked whether condition 2 is satisfied, and if the second condition is satisfied, it is detected that the object has fallen and an alarm signal is generated. However, this background technology makes it difficult to collect images while moving in a wheelchair, and it is difficult to receive active medical help because it cannot check the occupant's biological health such as electrocardiogram or blood sugar.

Another technology behind the present invention is Korean Patent Publication No. 10-2022-0139547 (Patent Document 3), which proposes a 'fall prevention wheelchair for hospitals.' This is a wheelchair equipped with armrests on both sides of the seat where the user's arms rest. A safety bar is pulled out from the inside of the armrests to the outside and fastened to the user's abdomen, and a brake that unlocks the wheels when the safety bar is pulled out in conjunction with the safety bar. , and a footrest that is coupled to a plurality of links interlocked with the safety bar and protrudes forward from the lower part of the seat when the safety bar is withdrawn. However, this background technology has poor cushioning and lack of comfort in the seat area, there is a risk of slipping and falling because there is no anti-slip means, and there is no winter warming means to warm the buttocks and back of the occupant.

Korean Patent Registration No. 10-2056022 Korean Patent Registration No. 10-1860062 Korean Patent Publication No. 10-2022-0139547

The present invention uses an AI camera, a smart watch worn by a wheelchair occupant, and a fall prevention management server to identify the occupant's health status, falls, and emergency situations in real time, including the electrocardiogram, and to receive medical help from a guardian or nearby related organization as soon as necessary. The purpose is to provide a fall accident prevention system and control method for smart wheelchairs.

A fall accident prevention system for a smart wheelchair according to a suitable embodiment of the present invention includes an AI camera having a motion recognition function and a camera communication module that transmits captured images to a fall prevention management server, an emergency situation display, and an emergency situation voice output. A smart wheelchair equipped with a wheelchair monitor with built-in speakers; It is worn by the rider and has a location information collection unit that collects the rider's location information, an electrocardiogram measurement unit that measures the rider's real-time electrocardiogram, and a watch communication module that transmits the rider's fall information to the guardian's terminal and a fall prevention organization. smart watch; A fall prevention management server that analyzes images received from AI cameras to read emergency situations and communicates with a smart watch to receive location information, electrocardiogram information, and fall information of smart wheelchair occupants to determine the location and health status of the faller; And a guardian terminal that communicates with the fall prevention management server and receives the faller's location information and electrocardiogram information; and when the faller management server recognizes an emergency situation in real time, the smart watch worn by the passenger who fell from the smart wheelchair It is characterized by receiving location information, electrocardiogram information, and fall information from the device, analyzing the location information and health status, and then transmitting an emergency notification signal to the guardian terminal and a fall prevention organization through the watch communication module.

In addition, the passenger's smartwatch is characterized by further including a biorhythm processing unit that checks the person's blood sugar, electrocardiogram, heart rate, body temperature, and blood sugar and displays the corresponding values and graphs on a wheelchair monitor or tablet PC.

In addition, the AI camera features an infrared dynamic tracking unit that tracks the user's movements up to a certain distance through communication with the smartwatch carried even after getting off the smart wheelchair.

In addition, the fall prevention management server is characterized by including an image reading processing unit that reads images captured by an AI camera and recognizes obstacles and emergency situations.

In addition, the smart wheelchair is additionally installed with an air cushion to support the hips and back in the seating area, and the air cushion is designed to be concave so that the amount of air in the center is smaller than the edge to prevent the rider from sliding. It is characterized by a depression being formed.

In addition, an anti-slip film is attached to the upper surface of the air cushion to prevent the occupant from slipping, and the anti-slip film 162 is attached to a base film layer, a fabric layer formed on the base film layer, and the fabric layer. The formed non-slip layer is composed of a structure in which the non-slip layers are sequentially stacked, and the non-slip layer includes anti-slip particles.

In addition, in order to keep the rider's buttocks and back warm in the winter, the air cushion is further equipped with a heating film that generates heat by receiving power from a battery mounted on the smart wheelchair.

In addition, the control method of the fall accident prevention system for a smart wheelchair of the present invention includes the steps of recognizing obstacles and vehicle approach images captured during movement and driving through an AI camera mounted on the smart wheelchair; The smartwatch worn on the passenger's wrist collects the passenger's location information and transmits it to the fall prevention management server. At the same time, the passenger's ECG is checked with the smartwatch and at the same time, the ECG is checked with the wheelchair monitor installed on the smart wheelchair to check the passenger's condition. Monitoring the condition and transmitting and storing electrocardiogram measurements in real time to the passenger terminal, guardian terminal, and fall prevention management server; Through the fall prevention management server, the video received from the AI camera is analyzed to read the emergency situation, and the location information, electrocardiogram information, and fall information of the smart wheelchair occupant are transmitted through communication with the smart watch, and the location and health status of the faller are determined. Steps and; When a fall or emergency situation occurs in real time, transmitting an emergency notification signal from the fall prevention management server to the guardian terminal and the fall prevention agency.

In addition, when an emergency situation such as an obstacle or approaching vehicle is recognized, an alarm sound is generated through the wheelchair monitor, rider terminal, and guardian terminal installed in the smart wheelchair.

In addition, the smartwatch checks and stores the passenger's blood sugar level, heart rate, and electrocardiogram, and simultaneously displays a blood sugar graph on the wheelchair monitor.

In addition, the infrared dynamic tracking unit of the AI camera tracks the movement of the passenger up to a certain distance through communication with a smart watch or the passenger terminal even after the passenger gets off the smart wheelchair; If an unexpected situation such as falling from a wheelchair or falling while walking occurs and is confirmed during tracking, an SOS signal is sent from the fall prevention management server to fall prevention organizations such as the observation district office, 119 rescue team situation room, and emergency center to notify the emergency situation. It is characterized by further including ;.

According to the fall accident prevention system and control method for a smart wheelchair of the present invention, the health status such as electrocardiogram of the occupant and the fall and death status are monitored in real time through the AI camera mounted on the smart wheelchair, the smart watch worn by the wheelchair occupant, and the fall prevention management server. You can identify emergency situations and receive medical help from guardians or nearby related organizations as soon as necessary.

In addition, the location and vital information can be tracked up to a certain distance after getting off the wheelchair, allowing immediate medical help in the event of a fall or emergency.

In addition, the air cushion and anti-slip film installed on the wheelchair provide excellent seating comfort and prevent slipping, and a warm feeling can be obtained through heat generated by the heating film attached to the air cushion while moving or driving in the winter.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention along with the detailed description of the invention. Therefore, the present invention is limited to the matters described in the attached drawings. It should not be interpreted as limited.
1 is a configuration diagram of a fall accident prevention system for a smart wheelchair according to an embodiment of the present invention.
Figure 2 is a control flow diagram of the fall accident prevention system of Figure 1.
Figure 3 is a perspective view of the smart wheelchair applied to Figure 1.
Figure 4 is a front view of Figure 3.
Figure 5 is a cross-sectional view of the air cushion applied to the smart wheelchair of Figure 3.

Below, the present invention will be described in detail with reference to embodiments shown in the attached drawings, but the presented embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

The fall accident prevention system of a smart wheelchair according to an embodiment of the present invention includes a smart wheelchair 10, a smart watch 20, a fall prevention management server 30, and a guardian terminal 40, as shown in FIG. 1. The smart watch 20 and the fall prevention management server 30 are connected to the Internet to implement the Internet of Things (IOT).

The smart wheelchair 10 is equipped with an AI camera 12 having a motion recognition function and a camera communication module 121 that transmits captured images to the fall prevention management server 30. Therefore, the AI camera 12 is installed so that its height can be adjusted up and down, enabling 360-degree continuous shooting while recognizing motion. In addition, the AI camera 12 is equipped with an infrared dynamic tracking unit 122 so that the movement of the user (passenger) can be tracked to a certain distance through communication with the smart watch 20 carried even after the passenger gets off the smart wheelchair 10. is included. The wheelchair monitor 14 is supported and installed in the front of the smart wheelchair 10 so that the rider can freely change the viewing direction. The wheelchair monitor 14 displays emergency situations in letters or symbols and has a built-in speaker that outputs emergency sounds.

Meanwhile, the smart wheelchair 10 is additionally installed with an air cushion 16 filled with a certain air pressure at the seating area that supports the hips and back, as shown in FIGS. 3 to 5. At this time, the air cushion 16 is formed with a central recessed portion 161 for preventing sliding so as to form a concave shape so that the amount of air in the central portion is smaller than that of the edge portion in order to seat the occupant and prevent sliding. Therefore, the rider seated in the smart wheelchair (10) can obtain a stable riding cushion from the air cushion (16), and the buttocks and back are supported by the central depression 161 to prevent sliding, preventing them from being pushed out of the air cushion (16). Falls can be prevented.

In addition, an anti-slip film 162 may be additionally attached to the upper surface of the air cushion 16 to prevent the occupant from slipping. Anti-slip particles are applied to the surface of the anti-slip film 162. The anti-slip film 162 may be attached to the air cushion 16 by adhesive or sewing. Therefore, even for passengers who weigh a lot, the anti-slip film 162 provides friction, further reducing the risk of falling easily from the air cushion 16.

Specifically, the anti-slip film 162 may be composed of a structure in which a base film layer, a fabric layer formed on the base film layer, and a non-slip layer formed on the fabric layer are sequentially stacked. At this time, the non-slip layer may include the anti-slip particles.

The base film layer is the lowest layer of the anti-slip film 162 and may be a part that is adhered to the air cushion 16.

The base film layer has excellent durability and may be a waterproof film or a waterproof film material.

The base film layer is, for example, polyethylene film, linear low-density polyethylene film, polyvinyl chloride film (PVC film, polyvinyl chloride film), polyethylene terephthalate film (PET film, polyethyleneterephtalate film), and technical pan film. and OPP film (Oriented Polypropylene film).

For example, the base film layer is preferably made of a polyethylene film that has excellent water resistance, water resistance, chemical resistance, tensile resistance, and durability.

The fabric layer is a base fabric coated with a non-slip layer and is a layer in direct contact with the user's body, clothes, or skin, so it is desirable to minimize skin irritation to the user and to be made of an eco-friendly material in terms of health and hygiene. do.

The fabric layer may be made of materials such as, for example, cotton, linen, wool, polyester, silk, wool, nylon, acrylic, or polyurethane fabric.

For example, the fabric layer may be made of cotton material, but is not limited thereto.

The fabric layer is formed by lamination on the base film layer, and is preferably formed to have a thickness that is, for example, 2 to 3 times the thickness of the base film layer. The method of lamination is not particularly limited and may follow known techniques.

The non-slip layer may be formed on the surface of the fabric layer, and specifically, may be formed as a coating layer by applying and curing a non-slip composition containing the anti-slip particles.

The non-slip composition includes cypress tree rosin powder and cork powder, which are anti-slip particles, and can be specifically coated in a hemispherical three-dimensional shape with an average diameter of 1 to 4 mm.

The cypress tree rosin powder utilizes rosin, a natural material, and is harmless to the human body, eco-friendly, and exhibits non-slip properties. In addition, cypress tree, a natural antibacterial agent, has a strong antibacterial effect, relieves skin itchiness, and has a deodorizing effect, so it is helpful for the user's health and hygiene.

The cypress tree rosin powder can be manufactured, for example, by distilling natural rosin derived from cypress trees, extracting terbenyl oil, refining the remaining resinous rosin and the terbenyl oil together, cooling, and powdering them. there is. However, it is not limited to this, and can be manufactured according to known techniques for powdering rosin commonly used in the field.

The cork powder is a natural material, is environmentally friendly, and, together with the cypress tree rosin powder, exhibits non-slip properties, has appropriate hardness, and can improve durability.

For example, it is preferable that the cypress tree rosin powder and cork powder are mixed and used at a weight ratio of 1:0.2 to 0.3.

For example, anti-slip particles, which are a mixture of cypress tree rosin powder and cork powder, may be included in an amount of 40 to 70% by weight based on the total weight of the composition.

In addition, the non-slip composition may be coated on the fabric layer in the form of hemispherical particles, and may further include additional ingredients for adhesion and durability.

For example, the additional components may further include components such as binder, polyvinyl alcohol, soda, foaming agent, and solvent.

The binder specifically includes allyl methacrylate, aminopropyl acrylate, cyclohexyl acrylate, phenoxy acrylate, methoxyethyl acrylate, methoxydiethylene glycol acrylate, methoxypropylene acrylate, acrylonitrile, and hydroxyl acrylate. At least one polyacrylate-based resin selected from decyl methacrylate, ethyl methacrylate, benzyl methacrylate, ethylhexyl methacrylate, glycerol methacrylate, methyl methacrylic acid, methacrylic acid, and copolymers thereof Examples include, but are not limited to.

The soda may be selected from the group consisting of baking soda, baking powder, sodium bicarbonate (NaHCO3), soda ash (Na2CO3), caustic soda, or silicate soda (Na2SiO3).

The blowing agent is isopropyl chloride, isopentane, cyclopentane, butane, pentane, hexane, and/or heptane. and/or may be selected from the group consisting of mixtures thereof.

Meanwhile, the additional ingredients may further include antibacterial and antiviral ingredients derived from natural ingredients for the health and hygiene of the user. For example, it may be one or more selected from green tea extract, Sungram extract, mugwort extract, peppermint extract, Yulpi extract, citrus extract, and centella asiatica extract.

For example, the antibacterial and antiviral ingredient may be a mixture of 50% by weight of green tea extract and 50% by weight of peppermint extract.

In addition to the additional ingredients described above, the non-slip composition may further include any number of other commonly used additives.

In the non-slip composition, the additional ingredients may be included in an appropriate content range independently of each other within the remaining content range excluding the content range of the anti-slip particles, and are not particularly limited.

In addition, the manufacturing method of the non-slip composition and the specific manufacturing method of forming a hemispherical three-dimensional coating on the fabric layer are not particularly limited, and may follow known techniques commonly used in the field.

The anti-slip film 162 is the part that comes into the most contact with the user's clothes or skin, and in some cases, the surface where the base film layer and the air cushion 16 are adhered has an adhesive surface that allows attachment and detachment. It may be processed and separated from the air cushion 16 so that it can be washed multiple times.

In this case, in order to improve fastness after washing, a special coating layer may be further formed on the surface of the non-slip layer.

Meanwhile, a heating film 163 may be further installed on the air cushion 16 to keep the occupant's buttocks and back warm in the winter. At this time, the heating film 163 can generate heat by receiving power from a battery (not shown) mounted on the smart wheelchair 10. Of course, the heat generation operation of the heating film 163 can be performed by touching the monitor 14, or through the passenger terminal 18 or the guardian terminal 40.

The smartwatch 20 is worn on the passenger's wrist. The smart watch 20 includes a location information collection unit 201 that collects the passenger's location information, an electrocardiogram measurement unit 202 that measures the passenger's real-time electrocardiogram, and the fall information of the passenger through the guardian's terminal 40 and the fall information. It has a watch communication module (203) that transmits to the prevention agency (50).

In addition, the passenger's smart watch (20) has a biorhythm processor ( 204) may be further included.

Therefore, the smartwatch 20 can collect the passenger's location information and simultaneously measure and store real-time electrocardiogram, heart rate, and blood sugar. At this time, a certain portion of the measurement data is stored, and when the certain data is full, the past data is sequentially erased.

In addition, the smart watch 20 can immediately transmit the passenger's fall information to the guardian's terminal 40 and the fall prevention organization 50 through the watch communication module 203. The smartwatch 20 can generate fall information about the occupant from a built-in sensor (for example, an accelerometer sensor). Additionally, the passenger's fall information can be obtained from a pressure sensor installed in the smart wheelchair (10) or by analyzing the image obtained from the AI camera (12) using an algorithm in the fall prevention management server (30).

Here, the fall prevention organization 50 may be an observation district office, a 119 rescue team situation room, or an emergency center where a fall or emergency situation occurred.

The fall prevention management server 30 analyzes the video data received from the AI camera 12 through an algorithm and reads the emergency situation. The fall prevention management server 30 communicates with the smart watch 20 to receive location information, electrocardiogram information, and fall information of the occupant of the smart wheelchair 10, and determines the location and health status of the faller. The fall prevention management server 30 can be connected to the smart watch 20 through an Internet network. In addition, the fall prevention management server 30 is connected to the guardian terminal 40 through a base station and an Internet network. The fall prevention management server 30 may include an image reading processing unit 301 that reads images captured by the AI camera 12 and recognizes obstacles and emergency situations.

The guardian terminal 40 communicates with the fall prevention management server 30 to receive and store the faller's location information and electrocardiogram information. At this time, the guardian terminal 40 installs a fall prevention app connected to the actual system and communicates with the fall prevention management server 30.

Therefore, when recognizing an emergency situation in real time, the faller management server 30 receives location information, electrocardiogram information, and fall information from the smart watch 20 worn by the passenger who fell from the smart wheelchair 10, and receives location information. After analyzing the health status, an emergency notification signal can be transmitted to the guardian terminal 40 and the fall prevention organization 50 through the watch communication module 203.

The control flow of the fall accident prevention system of the smart wheelchair configured as described above will be sequentially explained with reference to FIG. 2.

First, the surrounding situation is captured while moving or driving through the AI camera 12 mounted on the smart wheelchair 10 (S10), and the captured images are used to check obstacles and vehicle approach images (S11).

At this time, when an emergency situation such as an obstacle or a vehicle approaching is recognized, an alarm sound is generated (S12) through the wheelchair monitor 14, the rider terminal 18, and the guardian terminal 40 installed on the smart wheelchair 10. Therefore, the rider can avoid colliding with an obstacle in advance, and the guardian can run to the smart wheelchair 10 or request medical help.

Next, the passenger's location information is collected using the smart watch (20) worn on the passenger's wrist and transmitted to the fall prevention management server (30), and at the same time, the passenger's electrocardiogram is checked using the smart watch (20) (S13). Then, the person's condition is monitored by checking the electrocardiogram using the wheelchair monitor (14) installed on the smart wheelchair (10), and the electrocardiogram measurements are sent to the rider terminal (18), guardian terminal (40), and fall prevention management server (30). Transmit and save in real time. (S14)

Here, the passenger's blood sugar level can be checked using the smart watch 20 and a blood sugar graph can be displayed on the wheelchair monitor 14 at the same time. Therefore, the occupant can check his/her health status through the wheelchair monitor (14) by checking blood sugar level in real time even while driving the supermarket wheelchair (10).

Next, the video received from the AI camera 12 is analyzed through the fall prevention management server 30 to read fall and emergency situations (S15) and communicate with the smart watch 20 to identify the occupants of the smart wheelchair 10. Location information, electrocardiogram information, and fall information are transmitted to analyze and determine the faller's location and health status. Here, the AI camera 12 and smart watch 20 are connected to the fall prevention management server 30 through the Internet, thereby implementing the Internet of Things (IOT).

Next, the occurrence of falls and emergency situations is confirmed in real time (S16), and when a fall or emergency situation occurs, an emergency SOS signal is sent from the fall prevention management server 30 to the guardian terminal 40 and the fall prevention agency 50. Transmit (S17).

Here, the infrared dynamic tracking unit 122 of the AI camera 12 monitors the rider's movement at a certain distance through communication with the smart watch 20 or the rider terminal 18 even after the rider gets off the smart wheelchair 10. Tracking steps may be included.

For example, the infrared dynamic tracking unit 122 can track the passenger's movement line up to a certain distance of about 2 to 30 meters. At this time, the passenger (the user who got off the smart wheelchair) can be distinguished from other people through the smart watch 20 worn on the user's wrist.

During this tracking process, if an unexpected situation (electrocardiogram and heart rate abnormality) such as falling from a wheelchair or falling while walking occurs and is confirmed, the fall prevention management server (30) sends a message to fall prevention organizations such as the observation district office, 119 rescue team situation room, and emergency center ( 50), an SOS signal is transmitted to notify of an emergency situation. Therefore, even if the rider leaves the smart wheelchair 10 and falls while walking, he or she can receive medical help, thereby preventing personal accidents.

So far, the present invention has been described in detail with reference to the presented embodiments, but those skilled in the art can make various variations and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by such variations and modifications, but is limited by the claims appended below.

10: Smart wheelchair
12: AI Camera
14: Wheelchair monitor
20: Smartwatch
30: Fall prevention management server
40: Guardian terminal

Claims (11)

An AI camera (12) with a motion recognition function and a camera communication module (121) that transmits the captured images to the fall prevention management server (30), a wheelchair monitor (14) with a built-in speaker that displays emergency situations and outputs emergency voice sounds. ) or a smart wheelchair (10) equipped with a tablet PC;
A location information collection unit 201 that is worn by the passenger and collects the passenger's location information, an electrocardiogram measurement unit 202 that measures the real-time electrocardiogram of the passenger, and a fall prevention device that collects the passenger's fall information with the guardian's terminal 40. A smart watch (20) having a watch communication module (203) that transmits data to the organization (50);
The emergency situation is read by analyzing the video received from the AI camera 12, and the location information, electrocardiogram information, and fall information of the occupant of the smart wheelchair 10 are transmitted through communication with the smart watch 20, and the location and health status of the faller are received. A fall prevention management server (30) that determines; and
It includes a guardian terminal (40) that communicates with the fall prevention management server (30) and receives location information and electrocardiogram information of the faller,
When recognizing an emergency situation in real time, the faller management server 30 receives location information, electrocardiogram information, and fall information from the smart watch 20 worn by the passenger who fell from the smart wheelchair 10, and receives location information and fall information. After analyzing the health condition, it is characterized in that an emergency situation notification signal is transmitted to the guardian terminal 40 and the fall prevention organization 50 through the watch communication module 203,
The smart wheelchair (10) is additionally installed with an air cushion (16) that supports the hips and back in the seating area, and the air cushion (16) has a smaller amount of air in the center than at the edges to ensure seating of the rider and prevent the rider from being pushed. A central depression 161 for preventing slipping is formed to form a concave shape,
The air cushion 16 is additionally equipped with an anti-slip film 162 on the upper surface to prevent the occupants from slipping.
The anti-slip film 162 is composed of a structure in which a base film layer, a fabric layer formed on the base film layer, and a non-slip layer formed on the fabric layer are sequentially stacked, and the non-slip layer contains anti-slip particles. Characteristically,
The base film layer is composed of a polyethylene film, and the fabric layer is made of a cotton material and is laminated on the base film layer, and is formed to have a thickness 2 to 3 times the thickness of the base film layer,
The non-slip layer includes anti-slip particles that are a mixture of cypress tree rosin powder and cork powder at a weight ratio of 1:0.2 to 0.3, and the anti-slip particles are hemispherical particles with an average diameter of 1 to 4 mm. Characterized by having a shape,
The non-slip layer further contains a binder, polyvinyl alcohol, soda, a foaming agent, and a solvent as additional ingredients, and further contains a mixture of 50% by weight of green tea extract and 50% by weight of peppermint extract as antibacterial and antiviral ingredients. A fall accident prevention system for smart wheelchairs. According to clause 1,
The passenger's smart watch 20 is further equipped with a biological rhythm processor 204 to check the person's blood sugar, electrocardiogram (ECG), heart rate, body temperature, and blood sugar and display the corresponding values and graphs on the wheelchair monitor 14 or tablet PC. A fall accident prevention system for a smart wheelchair, characterized in that it is included. According to clause 1,
The AI camera 12 includes an infrared dynamic tracking unit 122 that tracks the user's movements up to a certain distance through communication with the smart watch 20 carried even after getting off the smart wheelchair 10. Fall accident prevention system for smart wheelchairs. According to clause 1,
A fall accident prevention system for a smart wheelchair, characterized in that the fall prevention management server 30 includes an image reading processing unit 301 that reads images captured by the AI camera 12 and recognizes obstacles and emergency situations. delete delete According to clause 1,
To prevent fall accidents in a smart wheelchair, the air cushion (16) is further equipped with a heating film (163) that generates heat by receiving power from a battery mounted on the smart wheelchair to keep the rider's buttocks and back warm in the winter. system. Recognizing obstacles and vehicle approach images captured while moving and driving through the AI camera 12 mounted on the smart wheelchair 10;
The passenger's location information is collected using a smart watch (20) worn on the passenger's wrist and transmitted to the fall prevention management server (30). At the same time, the passenger's electrocardiogram is checked using the smart watch (20) and the smart wheelchair (10) is used. Step of monitoring the individual's condition by checking the electrocardiogram using the wheelchair monitor (14) installed in the wheelchair, and transmitting and storing the electrocardiogram measurements in real time to the passenger terminal (18), guardian terminal (40), and fall prevention management server (30). and;
The emergency situation is read by analyzing the video received from the AI camera 12 through the fall prevention management server 30, and the location information, electrocardiogram information, and fall information of the occupant of the smart wheelchair 10 are communicated with the smart watch 20. receiving the information and determining the location and health status of the faller;
When a fall or emergency situation occurs in real time, transmitting an emergency notification signal from the fall prevention management server 30 to the guardian terminal 40 and the fall prevention agency 50,
The smart wheelchair (10) is additionally installed with an air cushion (16) that supports the hips and back in the seating area, and the air cushion (16) has a smaller amount of air in the center than at the edges to ensure seating of the rider and prevent pushing. A central depression 161 for preventing slipping is formed to form a concave shape,
The air cushion 16 has an additional anti-slip film 162 attached to its upper surface to prevent the occupant from slipping.
The anti-slip film 162 is composed of a structure in which a base film layer, a fabric layer formed on the base film layer, and a non-slip layer formed on the fabric layer are sequentially stacked, and the non-slip layer contains anti-slip particles. Characterized by
The base film layer is composed of a polyethylene film, and the fabric layer is made of a cotton material and is laminated on the base film layer, and is formed to have a thickness 2 to 3 times the thickness of the base film layer,
The non-slip layer includes anti-slip particles that are a mixture of cypress tree rosin powder and cork powder at a weight ratio of 1:0.2 to 0.3, and the anti-slip particles are hemispherical particles with an average diameter of 1 to 4 mm. Characterized by having a shape,
The non-slip layer further contains a binder, polyvinyl alcohol, soda, a foaming agent, and a solvent as additional ingredients, and further contains a mixture of 50% by weight of green tea extract and 50% by weight of peppermint extract as an antibacterial and antiviral ingredient. A control method for the fall accident prevention system of a smart wheelchair. According to clause 8,
When an emergency situation such as an obstacle or approaching vehicle is recognized, the smart wheelchair is characterized in that it generates an alarm sound through the wheelchair monitor (14), the rider terminal (18), and the guardian terminal (40) installed on the smart wheelchair (10). Control method for fall accident prevention system. According to clause 8,
A control method of a fall accident prevention system for a smart wheelchair, characterized in that the passenger's blood sugar, heart rate, and electrocardiogram are checked and stored using the smart watch (20), and at the same time, a blood sugar graph is displayed on the wheelchair monitor (14). According to clause 8,
The infrared dynamic tracking unit 122 of the AI camera 12 tracks the movement of the rider up to a certain distance through communication with the smart watch 20 or the rider terminal 18 even after the rider gets off the smart wheelchair 10. steps and;
If an unexpected situation such as falling from a wheelchair or falling while walking occurs and is confirmed during tracking, an SOS signal is sent from the fall prevention management server (30) to the fall prevention organizations (50) such as the observation district office, 119 rescue team situation room, and emergency center. A control method of a fall accident prevention system for a smart wheelchair, further comprising the step of notifying an emergency situation.

Images