KR102540328B1 - walking guidance system - Google Patents

Abstract

The present invention relates to a walking guidance system, and more particularly, to a walking guidance system that provides walking guidance information based on an afterglow of a Raman transition material and a swing direction of a walking guidance device. According to the present invention, walking guidance information can be more accurately guided by using a Raman variable material and a sensor that detects shaking of a walking guide device. According to the present invention, walking guide information can be provided by painting smart paint, ie, a walking guide pattern, on an already installed braille block, thereby providing practical help for the visually impaired to walk on their own. In addition, since the present invention only needs to paint the walking guide pattern in a place where the braille block is not installed, the construction cost and construction period can be significantly reduced compared to the braille block, and the effect can be greatly increased. Since the present invention only needs to paint the Raman variant material in the form of paint, it is possible to reduce installation and maintenance costs compared to braille blocks.

Description

walking guidance system

The present invention relates to a walking guidance system, and more particularly, to a walking guidance system that provides walking guidance information based on an afterglow of a Raman transition material and a swing direction of a walking guidance device.

According to statistics, there are about 270,000 visually impaired people in Korea. In general, the visually impaired walks with the help of an assistant or a guide dog, or walks on their own using a cane and braille block for the visually impaired. Recently, a device for notifying the location of a crosswalk, a bus stop, etc. using a short-range communication terminal such as a beacon is being utilized, and a device for audibly notifying a signal of a crosswalk is also widely used.

However, there are various limitations for visually impaired people to find their destination and walk on their own without anyone's help using only the currently used convenience facilities for the visually impaired. Devices using beacons, etc., cannot tell the exact location of a specific facility or installation, and braille blocks are composed of a dotted block meaning stop and a linear block meaning progress, so they can provide information on why you need to stop. There is a downside to not having it.

Republic of Korea Patent Publication No. 10-2018-0120308 (published on October 10, 2018)

An object of the present invention is to provide a walking guidance system capable of safely and accurately walking to a destination by itself.

The object of the present invention is not limited to the above-mentioned object, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

A walking guide system according to the present invention includes a walking guide pattern formed of different Raman transition materials according to the type of structure, and a walking guide device for guiding the type of structure by emitting light to the walking guide pattern and reflecting the reflected afterglow.

The walking guide pattern includes a signal pattern formed of different Raman transition materials depending on the type of structure, and a guide pattern formed close to the signal pattern and formed of a Raman transition material.

The walking guide device includes a light source unit that emits light to a walking guide pattern and receives afterglow, a sensor that detects shaking of the walking guide device and generates shake information, and determines the type of structure from the afterglow received from the light source unit, and a control unit for determining and guiding the position of the structure based on shaking information.

The control unit determines the structure type based on the afterglow of the signal pattern, and determines the position of the structure in the left and right swing direction of the walking guide device according to the order of reception of the afterglow of the signal pattern and the afterglow of the guide pattern and motion information.

The walking guidance system according to the present invention may provide walking guidance information more accurately by using a Raman variable material and a sensor that detects shaking of the walking guidance device.

The walking guidance system according to the present invention can provide walking guidance information by painting a smart paint, that is, a walking guide pattern, on an already installed braille block, thereby providing practical help for the visually impaired to walk on their own. there is.

In addition, since the walking guidance system according to the present invention only needs to paint a walking guide pattern in a place where a braille block is not installed, the construction cost and construction period can be significantly reduced compared to the braille block, and the effect can be greatly increased.

Since the walking guidance system according to the present invention only needs to be painted with a Raman transition material in the form of paint, installation and maintenance costs can be reduced compared to braille blocks.

In addition to the effects described above, specific effects of the present invention will be described together while explaining specific details for carrying out the present invention.

1 is a conceptual diagram of a walking guidance system according to the present invention.
2 is a conceptual diagram of a walking guide pattern according to the present invention.
3 is an exemplary view of a walking guide pattern according to the present invention.
4 is a schematic exploded perspective view of the walking guide device according to the present invention.
5 is a schematic perspective view of a light source unit in the walking guide device according to the present invention.
6 is an exemplary view of a user's walking using the walking guidance system according to the present invention.

The above objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention. In describing the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

1 is a conceptual diagram of a walking guidance system according to the present invention.

As shown in FIG. 1, the walking guidance system according to the present invention includes a walking guide pattern 100 in which walking guide information is displayed as a Raman-variant material, the afterglow of the walking guide pattern 100, and sensed motion information. A walking guide device 200 for guiding walking by recognizing the walking guide information of the walking guide pattern 100 is included.

2 is a conceptual diagram of a walking guide pattern according to the present invention, and FIG. 3 is an exemplary view of a walking guide pattern according to the present invention.

The walking guide pattern 100 is a pattern composed of a Raman variable material to include walking guide information. As shown in FIG. 2 , the walking guide pattern 100 includes a signal pattern including walking guide information and a guide pattern formed on one side of the signal pattern.

The signal pattern includes information on the type of structure existing in a specific direction, that is, structure type information. In addition, in order to include structure type information, the signal pattern may indicate structure information using a special material, for example, a Raman shift material made of a rare earth element and causing a Raman shift. Here, the structure type in the structure type information includes, for example, a crosswalk, a crossroad, a bus stop, a chin, a crossroads, a door, an elevator, a staircase, a toilet, a shelter, an obstacle, an end of a sidewalk, and continuing (no structure). . In addition, different Raman transition materials may be used for the signal pattern depending on the type of structure. For example, as shown in FIG. 3, the first Raman transition material is an obstacle, the second Raman transition material is continuous progress, the third Raman transition material is a crosswalk, the fourth Raman transition material is a crossroads, and the fifth Raman transition material is a crossroads. Substances can be defined as sidewalk ends, etc.

The guide pattern displays the location of a structure included in the structure information of the signal pattern, that is, structure location information. To this end, the guide pattern exemplifies being located to the left or right of the signal pattern.

4 is a schematic exploded perspective view of a walking guide device according to the present invention, and FIG. 5 is a schematic perspective view of a light source unit in the walking guide device according to the present invention.

The walking guidance device 200 performs walking guidance by recognizing the Raman variable material. To this end, as shown in FIG. 4 , the walking guide device 200 includes a light source unit 210 for radiating light to the Raman transition material and receiving the afterglow reflected by the walking guide pattern 100, and the walking guide device 200. A sensor 220 for detecting the movement of the light receiver, a control unit 230 for providing walking guide information based on the afterglow received by the light receiver and the motion detected by the sensor 220, and a lens 300 provided on the front of the light source unit 210 , and a housing 400 that houses and protects the above-described components. Here, the lens includes a refractive lens 310 that refracts and evens the light emitted from the light source unit 210 and a cover 320 that protects the refractive lens 310 . In addition, the housing 400 is a cover covering the open lens 300 area of the first housing 410 and the second housing 420 coupled to each other and the coupled first housing 410 and the second housing 420. housing 430. Of course, this is just an example, and the shape of the lens 300 and the housing 400 may be different.

The light source unit 210 emits lights of different wavelengths to the outside of the walking guide device 200 and receives afterglow reflected from the emitted light by the walking guide pattern 100 . Here, the light source unit 210 includes a plurality of light source modules that emit light of different wavelengths and receive afterglow, as shown in FIG. 5, and the present embodiment includes three light source modules, that is, the first light source module. 211 and the second light source module 212 and the third light source module 213 are illustrated.

The first light source module 211 emits light in a different wavelength band from the second light source module 212 and the third light source module 213 and receives the afterglow. The first light source module 211 includes a first light emitting module emitting first light and a first light receiving module 211b receiving afterglow of the first light reflected by the walking guide pattern 100 . This embodiment illustrates that the first light source module 211 emits ultraviolet rays and receives afterglow. Accordingly, the first light emitting module may include an ultraviolet rays light emitting diode (UV LED) emitting ultraviolet rays, and the first light receiving module 211b may include a photodiode.

The second light source module 212 emits light in a wavelength range different from that of the first light source module 211 and the third light source module 213 and receives the afterglow. In addition, the second light source module 212 includes a second light emitting module 212a emitting second light and a second light receiving module 212b receiving afterglow of the second light reflected by the walking guide pattern 100. do. This embodiment illustrates that the second light emitting module 212a emits infrared rays, and accordingly, the second light emitting module 212a includes an IR LED (infrared ray light emitting diode) emitting infrared rays can do. Of course, the second light receiving module 212b may include a photodiode.

The third light source module 213 emits light in a different wavelength range from those of the first light source module 211 and the second light source module 212 and receives the afterglow. The third light source module 213 also includes a third light emitting module 213a that emits third light and a third light receiving module 213b that receives the afterglow. This embodiment illustrates that the third light emitting module 213a emits visible light, and thus, the third light emitting module 213a may include a light emitting diode (LED) emitting visible light. Of course, the third light receiving module 213b may also include a photodiode.

Meanwhile, in the above-described embodiment, three light source modules emitting light of different wavelengths were exemplified, but the present invention is not limited thereto. That is, the aforementioned light source unit 210 may include two light source modules emitting light of different wavelengths or four or more light source modules emitting light of different wavelengths. In addition, it is preferable that a shielding film such as a reflective cup is provided between one light source module and a pair of light receiving modules to prevent interference.

In addition, the aforementioned light source unit 100 should be capable of recognizing the walking guide pattern 100 even under sunlight reaching 20,000 to 30,000 lux on a sunny day at noon in midsummer. Therefore, in this embodiment, a sunshade cover (not shown) may be installed at the end of the walking guide device 200, and the luminance of the light source unit 100 should be sufficiently increased.

The sensor 220 detects the movement of the walking guide device 200 . In the present invention, the walking guide device 200 in the form of a stick is used by a user shaking it left and right while walking. Accordingly, the sensor 220 detects whether the user shakes the walking guide device 200 from left to right or from right to left while walking. These sensors 220 may detect movement of the walking guide device 200 by including a gyro sensor.

The controller 230 provides walking guide information based on the afterglow received from the light receiver and motion information detected by the sensor 220 . To this end, the controller 230 includes a light source control module 231 that controls the light source unit 210 to generate afterglow, and a walking guide information providing module 232 that provides walking guide information based on afterglow and motion information. do.

The light source control module 231 controls the operation of the light source unit 210 . Here, the light source control module 231 operates the light source unit 210 by applying battery power to the light source unit 210 upon receiving an operation input from the user. The control module of the light source unit 210 sequentially emits light from a plurality of light emitting modules included in the light source unit 210 . For example, after turning on and off the first light source module 211, the second light source module 212 may be turned on and off, and the third light source module 213 may be turned on and off. The light source control module 231 sequentially emits light from a plurality of light source modules when an operation command such as a number position is input from a user. Of course, since there is a problem of battery consumption, the present embodiment causes the light source control module 231 to operate the light source unit 210 only when the sensor 220 detects that the light source unit 210 is moving downward or shaking left and right. You can also let it go. However, if the light source unit 210 does not operate in the user's walking state due to a malfunction of the sensor 220, it may cause danger. Therefore, the light source control module 231 ) may reduce battery consumption by increasing blinking cycle intervals of a plurality of light emitting modules. The light source control module 231 may supply power in a pulse width modulation (PWM) method so that the light source unit 210 flickers and emits light.

The walking guide information providing module 232 provides walking guide information based on the afterglow received from the light receiving module of the light source unit 210 and the motion information received from the sensor 220 and the afterglow and motion information. To this end, the walking guide information providing module 232 may provide walking guide information through voice or vibration, including a speaker or a vibration motor. Of course, the present invention exemplifies that the walking guide device 200 itself generates voice or vibration, but is not limited thereto, and walking guide information may be provided with voice or vibration through a smart band worn on the wrist. In this case, the smart band can display walking guide information by vibrating along the wrist. For example, in the case of 'Continue', vibration may be allowed to proceed in one direction along the wristband of the smart band, and in the case of 'Crosswalk', vibration may be applied to only one side and the other side of the wristband of the smart band. As such, in the case of a smart band, vibration modules may be embedded in a wristband at regular intervals, and a plurality of vibration modules may be controlled so that a unique vibration pattern is applied according to unique walking guide information.

The walking guide information providing module 232 recognizes the afterglow of the signal pattern to determine the structure type information, and the position of the structure included in the signal pattern according to the position of the signal pattern and the guide pattern and the motion information of the sensor 220. can be displayed. For example, when the signal pattern includes intersection information, the guide pattern may indicate the location of the intersection. This makes it possible to determine whether the swing of the walking guide device 200 is from left to right or from right to left, so that the position of the structure can be determined based on the direction of movement of the user. This embodiment illustrates that the guide pattern is located on the left side and the signal pattern is located on the right side based on the user's walking direction. In addition, when the guide pattern is located on the left side and the signal pattern is located on the right side, the structure according to the signal pattern is located in the front, and in the opposite case, the structure is located in the rear side. Of course, when the structure is not located in the front of the user's walking direction, but is located in the right front or left front, it may be indicated by a method such as arranging the positions of the guide pattern and the signal pattern to be oblique. Also, for this purpose, the walking guide information providing module 232 may use structure type information according to the afterglow of the signal pattern previously stored in the memory and structure location information according to the position and motion information of the signal pattern and the guide pattern.

Meanwhile, the present invention may apply a short-range communication device such as Wi-Fi or a beacon to provide walking guidance information even in an area without the walking guidance pattern 100. In this case, the current location of the walking guide device 200 and the walking direction can be grasped through a change in the location with the corresponding short-range communication device, and structure type information and structure location information can be received and displayed as sound or vibration.

6 is an exemplary view of a user's walking using the walking guidance system according to the present invention.

Referring to FIG. 6, in the walking guidance system according to the present invention having the above-described structure, when applied to a road first, the first Raman variable material (material ①) 'continues (no structure)', and the second Raman variable material (② material) is defined as 'toilet', the third Raman variable material (material ③) is defined as 'bench', and the fourth Raman variable material (material ④) is defined as 'crossroads'.

First, when the walking guide device 200 receives an operation command from the user through a power switch or the like, the control unit 230 controls the battery power and applies it to the light source unit 210 . Thereafter, the user starts walking while shaking the walking guide device 200 in the form of a stick, that is, a cane, from side to side. The walking guide device 200 emits light toward the floor and receives reflected light. At this time, when the walking guide device 200 detects 'Continue' as the structure type information and the first Raman transition material (material No. ①) indicating the forward direction as the structure location information, the user informs the user that there is no structure ahead through sound or vibration. to be aware of In addition, while the user is walking by 'continue', when the walking guidance device 200 detects 'bench' as structure type information and a third Raman transition material (substance ③) pointing forward as structure location information, sound is heard. Vibration makes the user aware of the 'bench' ahead. In addition, as described above, when a short-range communication device is provided, structure type information, structure location information, location of the walking guide device 200, and walking direction information are obtained through the corresponding short-range communication device inside a building, etc. Vibration may be indicated.

As described above, according to the present invention, walking guidance information can be more accurately guided by using a Raman variable material and a sensor that detects shaking of the walking guidance device. According to the present invention, walking guide information can be provided by painting smart paint, ie, a walking guide pattern, on an already installed braille block, thereby providing practical help for the visually impaired to walk on their own. In addition, since the present invention only needs to paint the walking guide pattern in a place where the braille block is not installed, the construction cost and construction period can be significantly reduced compared to the braille block, and the effect can be greatly increased. Since the present invention only needs to paint the Raman variant material in the form of paint, it is possible to reduce installation and maintenance costs compared to braille blocks.

As described above, the present invention has been described with reference to the drawings illustrated, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various modifications are made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that variations can be made. In addition, although the operational effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the corresponding configuration should also be recognized.

100: walking guide pattern 200: walking guide device
210: light source unit 211: first light source module
211a: first light emitting module 211b: first light receiving module
212: second light source module 212a: second light emitting module
212b: second light receiving module 213: third light source module
213a: third light emitting module 213b: third light receiving module
220: sensor 230: control unit
231: light source control module 232: walking guidance information providing module
300: lens 310: refractive lens
320: cover 400: housing
410: first housing 420: second housing
430: cover housing

Claims (4)

A walking guide pattern formed of different ramen transition materials according to the type of structure;
A light source unit including a plurality of light source modules for sequentially emitting light of different wavelengths to the walking guide pattern and receiving afterglow, a sensor for detecting shaking of the walking guide device and generating shaking information, and receiving light from the light source unit A walking guide device including a control unit for determining a structure type based on the afterglow and determining a location of the structure based on the afterglow and the shaking information,
The control unit determines the type of structure from the afterglow of the signal pattern, and determines the position of the structure in the left and right swing direction of the walking guide device according to the sequence of light receiving of the afterglow of the signal pattern and the afterglow of the guide pattern, and the shaking information. guidance system.
According to claim 1,
The walking guide pattern,
Signal patterns formed of different Raman transition materials according to the type of structure;
A walking guidance system comprising a guide pattern formed close to the signal pattern and formed of a Raman transition material.
According to claim 2,
The signal pattern and the guide pattern are sequentially located,
Determining the position of the structure in the left and right swing direction of the walking guide device according to the order of reception of the afterglow of the signal pattern and the afterglow of the guide pattern and the shake information,
A walking guidance system for determining the position of the structure according to the positional arrangement between the signal pattern and the guide pattern. delete

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