KR102656649B1 - Safety system for the disabled using wearable devices - Google Patents

Abstract

According to the present invention, a safety system for the disabled using a wearable device that allows vehicle drivers and disabled people to recognize each other in order to reduce traffic accidents among socially disadvantaged disabled people is worn on the wrist of the disabled person and is installed in a first area where vehicles can operate. The wearable device radiates a signal at a first frequency when located at; and a safety device installed in the vehicle to receive a signal of the first frequency, determine the location of the disabled person based on the sensitivity of the signal, and display the location of the disabled person by mapping the determined location on a map. Includes, wherein the safety device radiates a signal of a second frequency when the vehicle is located within a reference distance from the disabled person, and the wearable device radiates a signal of a second frequency when the emitted signal of the second frequency is received, a first intensity, It is characterized in that the first vibration is generated at a first number of times and at a first time interval.

Description

Safety system for the disabled using wearable devices {Safety system for the disabled using wearable devices}

The present invention relates to a safety system for the disabled, and more specifically, to a safety system for the disabled using a wearable device.

Unless otherwise indicated herein, the matters described in this identification are not prior art to the claims of this application, and are not admitted to be prior art by being described in this identification.

Currently, as cars are not limited to simple means of transportation but are becoming a space, there is a need to consider not only car users but also things other than the space of the car. Things other than the space of cars include not only the roads on which cars drive, but also pedestrians.

According to 2019 statistics from the Ministry of Land, Infrastructure and Transport, 38.9% of traffic accident deaths in Korea occur while walking, and among these, visually impaired or hearing impaired people are at high risk of being in dangerous situations due to obstacles while walking.

In particular, among socially underprivileged people, the visually and hearing impaired are at high risk of traffic accidents because they are blind and deaf. There is a problem that vehicle drivers do not recognize people with visual and hearing impairments because their appearance is no different from that of the general public. Additionally, even if the vehicle driver recognizes that a visually impaired person is walking, there is a problem that an accident may occur because the visually impaired person cannot identify the vehicle.

The purpose of the present invention is to provide a safety system for the disabled using a wearable device that allows vehicle drivers and the disabled to recognize each other in order to reduce traffic accidents among the disabled, who are socially underprivileged.

In addition, the purpose of the present invention is to provide a safety system for the disabled using a wearable device that can minimize interference with other communication devices by transmitting and receiving through a specific frequency between the wearable device and the safety device installed in the vehicle.

In addition, the purpose of the present invention is to provide a safety system for the disabled using a wearable device that allows the disabled person to recognize the situation by generating different types of vibration for each situation.

The present invention is a safety system for the disabled using a wearable device that allows vehicle drivers and disabled people to recognize each other in order to reduce traffic accidents among socially vulnerable people with disabilities, which is worn on the wrist of the disabled person and includes a first area where the vehicle can operate. The wearable device radiates a signal at a first frequency when located at; and a safety device installed in the vehicle to receive a signal of the first frequency, determine the location of the disabled person based on the sensitivity of the signal, and display the location of the disabled person by mapping the determined location on a map. Includes, wherein the safety device radiates a signal of a second frequency when the vehicle is located within a reference distance from the disabled person, and the wearable device radiates a signal of a second frequency when the emitted signal of the second frequency is received, a first intensity, Characterized in generating a first vibration at a first number of times and at a first time interval,

The wearable device generates a virtual path that can guide the disabled person from the current location of the disabled person to the target location when a target location for the disabled person to move to is input, and the disabled person controls the direction of the virtual path and the width of the virtual path. Characterized in generating a second vibration at a second intensity, a second number of times, and a second time interval until it returns to the path when it deviates from at least one of the paths.

The wearable device is characterized in that it senses a sound and generates a third vibration at a third intensity, a third number of times, and a third time interval when a first word referring to the disabled person is sensed among the sensed sounds,

The wearable device collects activity data of the disabled person for a predetermined period of time, and based on the activity data, divides the activity zone of the disabled person into a first zone where the activity of the disabled person is enhanced and a second zone where the activity of the disabled person is reduced. It is classified into zones, and if no movement of the disabled person is detected in the first zone for a predetermined reference time, it is determined that an abnormality of the disabled person has occurred,

The activity data includes the number of activities counted as body movements per unit of time, and the wearable device classifies as the first zone a zone in which the number of activities of the disabled person is greater than the standard number among the activity zones, and the number of activities is It is characterized in that the area below the standard number is classified as the second area.

The present invention has the effect of enabling vehicle drivers and disabled people to recognize each other using wearable devices and safety devices, thereby preventing traffic accidents that may occur due to recognition by only the vehicle driver or the disabled person.

In addition, the present invention can minimize interference with other communication devices by transmitting and receiving through a specific frequency between the wearable device and the safety device installed in the vehicle, so that not only can the signal be transmitted and received without loss even in crowded areas, but this also allows This has the effect of improving system reliability between disabled people and vehicle drivers.

In addition, the present invention has the effect of enabling disabled people to recognize situations and cope with specific situations by generating different types of vibration for each situation.

Figure 1 is a diagram showing the configuration of a safety system for persons with disabilities using a wearable device according to an embodiment of the present invention.
Figure 2 is a diagram showing an example of Morse code-type vibration generated by the wearable device according to the present invention.
Figure 3 is a front perspective view of a wearable device according to an embodiment of the present invention.
Figure 4 is a front view showing the front of a wearable device according to an embodiment of the present invention.
Figure 5 is a rear perspective view of a wearable device according to an embodiment of the present invention.
Figure 6 is a rear view showing the back of the wearable device with the strap attached and removed according to an embodiment of the present invention.

In this specification, it should be noted that when adding reference numbers to components in each drawing, the same components are given the same number as much as possible even if they are shown in different drawings.

Meanwhile, the meaning of the terms described in this specification should be understood as follows. Singular expressions should be understood to include plural expressions unless the context clearly defines otherwise, and terms such as “first” and “second” are used to distinguish one element from another element. The scope of rights should not be limited by these terms. Terms such as “include” or “have” should be understood as not precluding the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

The term “at least one” should be understood to include all possible combinations from one or more related items. For example, “at least one of the first item, the second item, and the third item” means each of the first item, the second item, or the third item, as well as the first item, the second item, and the third item. It means a combination of all items that can be presented from two or more of them.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

Figure 1 is a diagram showing the configuration of a safety system for persons with disabilities (hereinafter referred to as "safety system") using a wearable device according to an embodiment of the present invention. As shown in FIG. 1, the safety system according to the present invention includes a wearable device 100 and a safety device 200.

The wearable device 100 according to the present invention can perform vehicle detection, route detection, and check for physical abnormalities to improve the safety of the disabled.

The wearable device 100 according to the present invention radiates a signal at a first frequency when located in a first area where a vehicle can be driven. Here, the first area refers to areas where vehicles can drive, such as roads, crosswalks, and alleys. The first frequency refers to the frequency allocated to the wearable device 100. The first frequency may be included in a frequency band different from the frequency band transmitted and received by a mobile phone, router, radio, etc., and may be a frequency for specifying only the wearable device 100. Unlike this embodiment, the first frequency may be included in the same frequency band as the frequency band transmitted and received by a mobile phone, router, radio, etc. However, when following this embodiment, the signal emitted by the wearable device 100 may include a packet that can identify the wearable device 100.

The signal of the first frequency emitted by the wearable device 100 according to the present invention can be received by the safety device 200 installed in the vehicle.

When the safety device 200 radiates a signal at a second frequency, the wearable device 100 can receive the signal at the second frequency. Here, when the second frequency is received, the wearable device 100 may determine that a vehicle exists within a certain range from the wearable device 100. The second frequency refers to the frequency allocated to the safety device 200. The second frequency may be included in a frequency band different from the frequency band transmitted and received by mobile phones, routers, radios, etc., and may be a frequency for specifying only the safety device 200.

Unlike this embodiment, the second frequency may be included in the same frequency band as the frequency band transmitted and received by a mobile phone, router, radio, etc. However, when following this embodiment, the signal emitted by the safety device 200 may include a packet that can identify the safety device 200.

In one embodiment, when a signal of a second frequency radiated from the safety device 200 is received, the wearable device 100 may generate a first vibration at a first intensity, a first number of times, and a first time interval. there is. Here, the first intensity refers to the intensity of the vibration, the first number refers to the number of times the vibration occurs, and the first time interval may refer to the interval between turning the vibration on and off. In one embodiment, vibrations may be provided in Morse code format through intensity, frequency, and time interval. For example, as shown in FIG. 2, the wearable device 100 can generate vibration by converting it into Morse code format. For example, in order to express 'ㄱ', the wearable device 100 generates vibration of intensity of 10 once, 1 second later generates vibration of intensity of 5 once, and 1 second later, vibration of intensity of 10 is generated. Generates once, and after 1 second, vibration with a strength of 10 is generated once. Accordingly, disabled people can recognize vibrations in the form of Morse code.

When following this embodiment, a disabled person can recognize that a vehicle is located nearby through the wearable device 100.

In one embodiment, the wearable device 100 may generate a virtual path that can guide the disabled person from the current location of the disabled person to the target location when the target location to which the disabled person will move is input.

In one embodiment, the wearable device 100 may measure the number of steps according to the moving distance of the disabled person during a predetermined period and calculate the average stride length per number of steps. The wearable device 100 can calculate the number of steps by dividing the moving distance from the current location to the target location by the average stride length, and provide the number of steps to the disabled person. At this time, the wearable device 100 may provide the step count by voice or provide the step count to the disabled person through a display. Accordingly, the present invention can assist the disabled person in determining whether to move to the relevant location according to the number of steps.

In one embodiment, if the disabled person deviates from at least one of the direction of the virtual path and the width of the virtual path, the wearable device 100 performs a second operation at a second intensity, a second number of times, and a second time interval until the disabled person returns to the path. Vibration may occur. Here, the wearable device 100 generates vibration at an intensity, frequency, and time interval different from the vibration detected by the vehicle, so that the wearable device 100 can move while recognizing the vehicle while moving the route.

In one embodiment, the wearable device 100 may provide a voice that can guide a virtual route. For example, when a disabled person starts, the wearable device 100 may provide a voice for directions, and when there is an obstacle, it may provide a voice indicating that there are obstacles nearby.

In one embodiment, the wearable device 100 can sense sound. For this purpose, the wearable device 100 may include a sound sensor. When a first word referring to a disabled person is sensed among the sensed sounds, the wearable device 100 may generate a third vibration at a third intensity, a third number of times, and a third time interval. For example, when the disabled person's name is “Cheolsu,” the wearable device 100 may generate a third vibration when the word “Cheolsu” is included among the sensed sounds.

In this way, the wearable device 100 according to the present invention generates a first vibration when a vehicle is detected, a second vibration when guiding along a virtual path, and a third vibration when a first word referring to a disabled person is sensed. It can occur. Accordingly, the present invention has the effect of providing cognitive means specialized for disabled people who have problems with some of their sense organs because their sense of touch is more developed than that of the general public.

In one embodiment, the wearable device 100 may collect activity data of a disabled person for a predetermined period of time. Here, activity data refers to data based on the movements of disabled people. In one embodiment, the activity data may include the number of activities counted as body movements per unit of time.

For example, if a disabled person's movement is detected 6,000 times in one hour, the wearable device 100 can count the number of activities as 100 times per minute.

In one embodiment, the wearable device 100 may classify activity zones of disabled people based on activity data. Specifically, the wearable device 100 can classify the activity zones of disabled people into first zones and second zones using activity data. Here, the first zone may mean a zone where the activity of the disabled person is enhanced, and the second zone may mean a zone where the activity of the disabled person is reduced. In one embodiment, the wearable device 100 may classify a zone in which the number of activities is greater than the standard number as a first zone, and classify a zone in which the number of activities is less than the standard number as a second zone. For example, the wearable device 100 may classify a zone where the number of activities is 100 or more times per minute as a first zone, and may classify a zone where the number of activities is less than 100 times per minute as a second zone.

In one embodiment, the wearable device 100 may determine that an abnormality has occurred when the movement of a disabled person less than a predetermined number of activities is detected during a predetermined reference time in the first zone. For example, the wearable device 100 may determine that an abnormality has occurred when the number of activities less than 50 times per minute for 10 minutes is detected in the first zone.

In one embodiment, the wearable device 100 may determine that an abnormality has occurred when movement less than a predetermined second number of activities is detected during a second predetermined reference time in the second zone. For example, the wearable device 100 may determine that an abnormality has occurred when the number of activities less than 10 times per minute is detected for 60 minutes in the second zone.

In this way, the wearable device 100 according to the present invention has the effect of preventing malfunction because it classifies zones based on activity data and determines differently whether the disabled person is abnormal for each zone.

The present invention uses a high standard to determine whether there is an abnormality in a disabled person for areas where movement is actively detected, such as outside the home or a gym, and uses a low standard for areas where only subtle movements can be detected, such as sleeping or sitting on a sofa. This determines whether the disabled person is abnormal. Accordingly, the present invention has the effect of maximizing the safety of disabled people by accurately detecting abnormalities.

If it is determined that an abnormality has occurred, the wearable device 100 according to the present invention transmits abnormality information to an external server (not shown). Here, external servers refer to servers of public institutions, police, fire departments, etc. that manage people with disabilities. Abnormal occurrence information may include location information of the disabled person.

The wearable device 100 according to the present invention is worn on the wrist of a disabled person. Figure 3 is a front perspective view of a wearable device according to an embodiment of the present invention. Figure 4 is a front view showing the front of a wearable device according to an embodiment of the present invention. The wearable device 100 includes a display and a strap, as shown in FIGS. 3 and 4 . The display can provide visual information directly to the disabled or provide audio through a built-in speaker.

The wearable device 100 may allow a disabled person to directly control settings through the display. For this purpose, the display may be a touch-sensitive display.

The wearable device 100 can be worn on the wrist of a disabled person through a strap. In one embodiment, magnets may be installed at both ends of the strap. Accordingly, the wearable device 100 according to the present invention can be worn on the wrist semi-automatically, thereby improving convenience.

Figure 5 is a rear perspective view of a wearable device according to an embodiment of the present invention. Figure 6 is a rear view showing the back of the wearable device with the strap attached and removed according to an embodiment of the present invention. As shown in FIGS. 5 and 6, the wearable device 100 may include a magnet for wireless charging. Here, a flat plate-shaped charger (not shown) may exist, and a magnet may be placed in the charger. In the present invention, charging can be performed by attaching the wearable device 100 to a flat plate-shaped charger. In this case, there is an effect that disabled people can easily charge without having to connect a power cord for separate charging.

In one embodiment, the wearable device 100 may include a solar battery. If this embodiment is followed, the wearable device 100 can be charged using sunlight.

In one embodiment, two fitting members each having rollers may be formed on the rear of the display of the wearable device 100. Two fitting members are formed to face each other on the outside of the rear of the display.

At this time, the two fitting members are bent in a 'ㄷ' shape, and a roller may be formed at one end facing the rear of the display. At this time, the gap between the roller and the back of the display may be narrowed by a predetermined thickness than the thickness of the strap. In this case, the strap may be made of a rubber material.

Accordingly, the wearable device 100 according to the present invention has the effect of allowing the strap to be easily replaced.

The safety device 200 according to the present invention is installed in a vehicle and receives a signal of a first frequency radiated from the wearable device 100. The safety device 200 can determine the location of the disabled person based on the sensitivity of the received signal. For example, the safety device 300 can measure the RSSI (Received Signal Strength Indicator) value of the received signal and determine the location through the Friis formula.

In one embodiment, the safety device 200 may map the determined location on a map. For example, the safety device 200 may display its location as a red dot on a map.

In one embodiment, the safety device 200 can display the location of the disabled person on a map and provide it to vehicle occupants. Here, the safety device 200 may include a display. The safety device 200 may be included in a navigation device installed in a vehicle, or may be installed separately in a vehicle.

The safety device 200 may emit a signal at a second frequency when the vehicle is located within a reference distance from the disabled person. Accordingly, the wearable device 100 receives a signal of the second frequency, and vibration is generated.

In this way, the present invention provides vehicle occupants with the location of the disabled person and allows the disabled person to recognize the vehicle by generating vibration, thereby enabling both sides to recognize each other, thereby minimizing the risk of a safety accident. There is.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the embodiments described in this specification and the configuration shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention. Since this is not the case, it should be understood that there may be various equivalents and modifications that can replace them at the time of filing this application. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the claims described later rather than the detailed description, and the meaning and scope of the claims and their All changes or modified forms derived from the equivalent concept should be construed as falling within the scope of the present invention.

100: Wearable device
200: Safety device

Claims (5)

In a safety system for the disabled using wearable devices,
The wearable device is worn on the wrist of the disabled person and radiates a signal at a first frequency when located in a first area where a vehicle can be driven; and
A safety device installed in the vehicle to receive a signal of the first frequency, determine the location of the disabled person based on the sensitivity of the signal, and display the location of the disabled person by mapping the determined location on a map; Including,
The safety device is,
When the vehicle is located within a reference distance from the disabled person, it radiates a signal of a second frequency,
The wearable device is,
To generate vibration by converting it into Morse code format, when the signal of the radiated second frequency is received, generate a first vibration at a first intensity, a first number of times, and a first time interval;
The wearable device is,
When the target location to which the disabled person will move is input, a virtual path that can guide the disabled person from the current location of the disabled person to the target location is created,
When the disabled person deviates from at least one of the direction of the virtual path and the width of the virtual path, generate a second vibration at a second intensity, a second number of times, and a second time interval until the disabled person returns to the path, and
The wearable device generates vibration at an intensity, frequency, and time interval different from the vibration detected by the vehicle.
The wearable device is,
Sensing a sound, and when a first word referring to the disabled person among the sensed sounds is sensed, a third vibration is generated at a third intensity, a third number, and a third time interval.
The wearable device is,
Collecting activity data of the disabled person for a predetermined period of time, and classifying the activity zone of the disabled person into a first zone where the activity of the disabled person is enhanced and a second zone where the activity of the disabled person is reduced based on the activity data, If no movement of the disabled person is detected for a predetermined reference time in the first zone, it is determined that an abnormality has occurred for the disabled person.
The second frequency is the frequency assigned to the safety device,
The second frequency may be included in a different frequency band from the frequency band transmitted and received by mobile phones, routers, and radios, and includes a frequency for specifying only safety devices,
If the signal emitted by the safety device includes a packet that can identify the safety device, the second frequency is included in the same frequency band as the frequency band transmitted and received by the mobile phone, router, and radio,
The wearable device is
During a predetermined period, the number of steps according to the distance traveled by the disabled person is measured, the average stride length per step is calculated, and the distance traveled from the current location to the target location is divided by the average stride length to calculate the number of steps and provided to the disabled person.
The wearable device provides the number of steps by voice or provides the number of steps to the disabled person through a display, thereby assisting the disabled person to determine whether to move to the corresponding location according to the number of steps. safety system
delete delete delete According to paragraph 1,
The activity data is,
Includes the number of activities counted as body movements per unit of time,
The wearable device is,
A safety system for the disabled using a wearable device, characterized in that among the activity zones, the zone where the number of activities of the disabled person is more than the standard number is classified as the first zone, and the zone where the number of activities is less than the standard number is classified as the second zone.