KR101428716B1 - Granted a unique number to the RFID / NFC the algorithm raised block visually impaired induction system - Google Patents

Abstract

The present invention relates to an algorithm raised block visually impaired person guide system and a guide method in which a serial number is provided for RFID/NFC. According to the present invention, an RFID/NFC tag that is disposed in a block or a road line is wirelessly recognized when a visually impaired person walks along the block or the road line so that a traveling direction can be notified by voice along with voice information as to the traveling direction according to direction change during traveling direction change. Also, position sound information as to a branch point, a stand-by point, a destination point and the like on a walking flow and sound information as to a danger area can be provided. The present invention includes a raised block that is disposed on a road or indoors; an RFID/NFC tag including specific algorithm data in which order and position values are set in the raised block so that a position according to the traveling direction can be sounded with the position value read through communication with a stick in the direction in which the visually impaired person moves; and a block formed of an intersection block at a part where raised blocks cross each other so that the current position of the visually impaired person can be apprehended. When communication is performed between the stick of the visually impaired person and the RFID/NFC of the two or more raised blocks disposed in the road, the visually impaired person is notified of the left, the right, the front, the back, the branch point, the stand-by point, and the danger area by the stick and a situation according to the direction is notified even during a movement in the traveling direction or a reverse direction. Accordingly, the movement of the visually impaired person can be facilitated.

Description

Technical Field [0001] The present invention relates to a guidance system and a guidance method for a visually impaired person with a braille block,

[0001] The present invention relates to an information guidance system and a guidance method of an algorithm for assigning a unique number to an RFID / NFC tag, and more particularly, RFID / NFC tag wirelessly recognizes the progress direction as a voice, notifies the progress direction of the RFID / NFC tag, as well as provides the progress direction information according to the direction change at the change of the progress direction and outputs the location voice information such as the bifurcation point, And an algorithm for assigning a unique number to an RFID / NFC tag capable of providing voice information in a dangerous area.

In general, for the visually impaired to move, the protruding portion of the guide block on the floor is sensed by the staff to recognize the position and the danger. However, this method does not know the precise current position and the direction in which the user wants to go, and it is inevitable to obtain the positional information from the surrounding people in the first place. Therefore, the first place needs someone to guide the location.

At present, attention is required such as crossing gate, subway entrance and exit, stairs, etc., and guidance blocks are added in the middle of the sidewalk blocks to guide them to specific locations.

However, such a conventional guide block is made of materials and shapes different from general floor materials such as rubber, stainless steel, plastic, and magnetism, and allows the visually impaired to perceive the protruding portion with a stick or foot. In addition, he or she visually senses the sense of touch by tapping or dragging the stick.

In this way, the types of messages delivered to the visually impaired are largely classified into three types, and the actual visuals are classified into three types: There is a problem in that the detection speed is slow, uncomfortable, and not precise when the handicapped is guided to the desired place only by the touch when they walk and is guided safely.

The provision of information for the visually impaired can only be conducted using auditory information such as voice or sound and tactile feedback such as braille. Auditory information transfer is faster and more accurate than tactile information transfer. There are many researches on how to receive the position information that the visually impaired can obtain.

Meanwhile, as a prior art related to a gait guide device for the visually impaired, a Korean registered utility model 20-0203332 is equipped with an ultrasonic wave generating device and a vibration device on a stick to detect peripheral obstacles by using ultrasonic waves, There has been proposed a guide mechanism. However, such an ultrasonic wave guiding apparatus can detect obstacles in proximity positions, but can not distinguish between moving persons and fixed obstacles in a place where many people are present, which can cause disturbance and confusion.

In order to solve this problem, the RFID tag is mounted on the block and the RFID tag is read in a noncontact manner so that the voice guidance can be performed. However, since the infrared ray reflection path is formed in the guide path, Korean Patent Laid-Open Publication No. 10-0647069 discloses a technique of detecting a front, rear, left, and right directions of a cane and guiding the progress direction by voice.

Korean Patent No. 10-0647069 discloses a conventional gait guidance system for a visually impaired person which stores information on the directions of forward, backward, left and right directions on a block installed on a walkway, stores the braille block RFID tag, And radiates a radio signal through the antenna of the RFID reader to read information from the adjacent RFID tag to guide the voice.

In such a configuration, the gait guide device for a visually impaired person has a direction guiding tag in each of front, back, left, and right directions embedded in a block so that the reader reads in two voices in duplicate to guide the directions of front, back, left and right The problem that can not be raised was raised.

In addition, such a gait guidance device for the visually impaired can not provide normal walking guidance because it gives the same voice guidance as when going backward, forward, backward, leftward and rightward, , And the voice guidance is the same as before when going backward, forward, backward, leftward or rightward. Therefore, it is impossible to know how far the diverging point and the dangerous area are, .

In order to solve the above problems, the present invention provides a method of detecting an RFID / NFC tag installed in a braille block when a visually impaired person follows a braille block, wirelessly notifying a progress direction of the braille block, It is an object of the present invention to provide a guidance system for a visually impaired person with a braille block in which a unique number is assigned to an RFID / NFC tag for notifying the progress of a conversion.

In addition, when at least two communications are made with RFID / NFC tags of a blind block carried by a visually impaired person and a braille block installed on a sidewalk, the direction in which the visually impaired person moves forward, And an RFID / NFC tag for transmitting and presenting the RFID / NFC tag.

In addition, the present invention is characterized in that, in order to avoid confusion of a visually impaired person when a staff member approaches a braille block arranged in a lateral direction, a braille block is provided with a unique number in an RFID / NFC tag Algorithm Braille block The purpose of this guide is to provide a visually impaired guidance system.

In addition, the present invention can be applied to an RFID / NFC tag which comprises a braille block of a visually impaired person's guidance system as a band-shaped coating line, and an RFID / NFC tag / NFC tag with Braille Block Blind Block Visually Impaired Guidance System.

The RFID / NFC tag having an algorithm in which the order number and the position value are set so as to read the data value through communication with the wand according to the moving direction of the visually impaired person, And the algorithm of the data value of at least two or more Braille blocks is communicated through the communication between the braille block and the staff consisting of the intersection block at the intersection of the braille blocks so as to grasp the current position of the visually impaired person, And a method of guiding a braille block blind person with an identification number assigned to an RFID / NFC.

In order to accomplish the above object, the present invention provides an algorithm guidance system for braille blocks and visually impaired persons, the braille block being provided with a unique number to an RFID / NFC tag, An RFID / NFC tag in which specific algorithm data having a sequence number and a position value set therein is read in order to read a position value by communicating with a stick according to a direction in which a visually impaired person moves, and to inform a position along the progress direction; A block including an intersection block is formed at a portion where the braille block intersects so as to grasp the current position of the blind person; Wherein the tag communicates with a stick possessed by the visually impaired person and outputs an algorithm of the direction of the proceeding according to a signal in which the sequence number is input in the forward direction or a signal in which the sequence number is input in the reverse direction. Brain block Braille block Visually impaired guide guidance system is provided.

The present invention relates to an algorithm for assigning a unique number to an RFID / NFC tag, the method comprising: reading a position value through communication with a wand according to a moving direction of a visually impaired person; In order to grasp the current position of the visually impaired, an RFID / NFC tag in which an algorithm of order number and position value is set is installed, and at least two And the algorithm of the data value of the braille block is read out and the progress direction of the visually impaired person is voiced. The method provides the braille block blind person guidance method with the unique number assigned to the RFID / NFC tag.

The present invention relates to an algorithm for assigning a unique number to an RFID / NFC tag, the method comprising: reading a position value through communication with a wand according to a moving direction of a visually impaired person; In order to identify the current position of the visually impaired, a braille block consisting of an intersection block and a cane are communicated at the intersection of the braille block so that at least two positions And the algorithm of the data value is read and the progress direction of the visually impaired person is transmitted by voice. The present invention provides an algorithm for assigning a unique number to an RFID / NFC tag.

The present invention detects a tag installed on a block wirelessly when a visually impaired person follows a block of a braille, notifies a progress direction by voice and knows a progress direction of a direction change when the progress direction is switched. It is effective.

In addition, when at least two communications are made with the RFID tag of the braille block carried by the blind person and the cane carried by the visually impaired person, Since the direction is transmitted by voice, even if the user advances in the forward direction or the backward direction, the traveling direction along the direction is indicated, so that the movement is very convenient.

When the data values of the progress blocks are input in the reverse order, the unique number algorithm information of the backward direction is transmitted through the staff by voice, so that the current position can be accurately grasped There is an effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a state in which a braille block is installed in an algorithm guide braille block blind user with an identification number assigned to an RFID / NFC tag according to the present invention.
FIG. 2 is a view showing another embodiment of a braille block in a guide braille block blind guide guidance system in which a unique number is assigned to an RFID / NFC tag according to the present invention. FIG.
FIG. 3 is a block diagram showing a wand configuration of an algorithm guide braille block blind user guidance system in which a unique number is assigned to an RFID / NFC tag according to the present invention.
FIG. 4A is a block diagram showing a circuit configuration of a guide braille block visually impaired guide guidance system wand with an algorithm in which a unique number is assigned to an RFID / NFC tag according to the present invention. FIG.
FIG. 4B is a block diagram showing another embodiment of FIG. 4A. FIG.
Fig. 5 is a configuration diagram showing another embodiment in which the braille block of Fig. 1 is installed. Fig.
FIG. 6 is a diagram showing another embodiment of a braille block in a braille block blind guide guidance system installed with an identification number assigned to an RFID / NFC tag according to the present invention. FIG.
FIG. 7A is a block diagram showing a configuration of another embodiment of a wand of an algorithm guide braille block blind person guidance guidance system in which a unique number is assigned to an RFID / NFC tag according to the present invention. FIG.
FIG. 7B is a configuration diagram showing another embodiment of FIG. 7A. FIG.

An algorithm guide braille block blind person guidance identification system with RFID / NFC according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of a Braille block blind block installed in a guide braille block blind person guidance guidance system having an RFID / NFC according to an embodiment of the present invention. FIG. FIG. 3 is a block diagram showing a configuration of a wand of a braille block blind guide guidance system according to an embodiment of the present invention, in which a unique number is assigned to an RFID / NFC according to an embodiment of the present invention. FIG. 4A is a block diagram showing a circuit configuration of an intelligent braille block blind person guidance guiding system wand having a unique number assigned to an RFID / NFC tag according to the present invention, and FIG. 4B is a block diagram FIG. 5 is a configuration diagram showing another embodiment in which the braille block of FIG. 1 is installed, and FIG. 6 is a diagram showing the configuration of the RFID / FIG. 7 is a block diagram of a braille block blind person guidance guidance system according to the present invention, in which a unique number is assigned to the RFID / NFC. Fig. 7B is a configuration diagram showing another embodiment of Fig. 7A. Fig.

1, a braille block 10 installed on a sidewalk is installed, an RFID / NFC tag 12 is installed on the braille block 10, And a stick which communicates with the installed RFID / NFC tag 12 and guides the direction to the visually impaired.

An intersection block 11 is provided at a point where the braille block 10 intersects with the traveling direction of the visually handicapped person and the intersection block 11 is also provided with an RFID / (12) are installed in the same manner.

Although the braille block 10 is shown in the form of a block in the drawing, the braille block is not limited to a rectangular shape but may be formed into a long strip-shaped coating line (not shown) (Not shown) may be made of a material adaptable to the environment, that is, a material that can be recycled as a synthetic resin, or the like.

As shown in FIGS. 1 and 2, the braille block 10 is installed in various forms such as a '+' shape or a 'T' shape in which a row or a row is combined with a row and a row. Are configured differently depending on the place where they are installed.

The RFID / NFC tag 12 installed in the braille block 10 is not limited to K1, K2, K3, K4, etc. as shown in the drawing, and is not limited to '00 A 000001, 00 A 000002, 00 A 000003 , 00 A 000004 ', and so forth.

In the case of '00 A 000001', '00' is a number having fixed algorithm information. In the case of '00 to nn', a specific number is input and a pedestrian crossing, a stairway, a revolving door, Women's toilets, etc.

The data of '00 to nn' are used to guide fixed facilities by inputting an arbitrary number to facilities fixedly installed at a specific location.

That is, the stationary guidance voice data between 00 and nn is stored in the memory through the designated text, and the voice guidance is given to the city so that the disabled person can grasp the position of the fixed facilities.

The characters after '00' are arbitrarily assigned arbitrary alphabetical numbers from A to Z, and are used for identification of the type or position of the braille block according to the installed location, '000001' is arbitrarily fixed from '0 to 99999' The notification text is specified and the corresponding text data is input.

The data '000001 ~ 99999' is used to input data for a position along the progress direction.

When the sequential data is input from 00001 to 00002 and 00003, the control section, which will be described below, determines which direction the visually impaired person is proceeding and judges the direction in which direction the user is proceeding based on the determined data. .

By inputting the information of the RFID / NFC tag 12 sequentially in at least two or more pieces of data along the traveling direction as described above, do.

3 and 4A, the wand 20 includes an antenna 21 for reading information of the RFID / NFC tag 12 embedded in the braille block 10, an antenna 21 for reading information of the RFID / NFC tag 12 embedded in the braille block 10, A battery 24 for supplying power to each electronic device and a battery 24 installed at an upper portion of the staff 20 so that a blind person can listen to a walking guidance message An earphone 26 connected to the earphone jack 25 for the visually impaired to listen to the gait guide message and a circuit board 27 provided with each electronic device.

The wand 20 includes an antenna 21 for receiving the intersection zone and the walking zone information by radio transmission and reception with the RFID / NFC tag 12, and a braille block 11 received from the antenna 21, An RF signal sensing unit 28 for sensing and processing the information of the intersection block 12 and an A / D converter 29 for converting the sensed signal from the tag signal sensing unit 28 into a digital signal, And the data of the Braille block 10 and the data of the braille block 10 when passing through the general walking area among the data of the Braille block 11 and the intersection block 11 converted into the digital signal from the A / D converter 29 And guides the destination in the direction of the voice.

A control unit (30) for controlling the data algorithm according to the reverse direction to output a voice guidance message when the visually impaired person advances in the reverse direction of the progress direction, and a voice memory (33) having voice data for transmitting the voice guidance message according to the direction An audio processing unit 32 for synthesizing and outputting a voice message stored in the voice memory 33 under the control of the control unit 30; An oscillator 23 for generating vibration under the control of the control unit 30 and a buzzer 34 for generating an effect sound under the control of the control unit 30. [

The present invention is not limited to the configuration shown in FIG. 3 and FIG. 4A. If necessary, the obstacle detecting sensor 34, the camera 35, and the recording / storing unit 36 may be additionally configured.

Referring again to FIG. 4A, the description of the same configuration will be omitted because it is redundant, and only the additional configuration will be described.

An obstacle detection sensor 34 for detecting whether an obstacle is present in the front as shown in FIG. 4B, a camera 35 for photographing a situation of an obstacle or a sidewalk located at the front, And a recording storage unit 36 for storing the recording data.

The obstacle detecting sensor 34 senses an obstacle to prevent the obstacle from being hindered by an obstacle located in front of the obstacle or to prevent the obstacle from being damaged by the obstacle.

In the case of the camera 35, when a problem such as an accident occurs in the course of a walker walking in one direction, the camera 35 shoots the image and the shot image is stored through the recording and storing unit 36 do.

5 and 6, it can be installed in a plurality of forms such as two or three lines so that the blind block 11 can be grasped by a visually impaired person while communicating with a wand of a blind person have.

The RFID / NFC tag 12 stores not only algorithm information but also data combined with arbitrary letters and numbers so as to grasp its position through communication with the staff.

The unique algorithm is used as information indicating the set area. When the data is applied to the cane by setting the letters and numbers according to the direction of the progress, etc., And guide the user through the voice so that the user can know the situation of the direction of the proceeding.

Then, the algorithm and the designated letters and numbers are converted into a voice file in advance and stored in the staff 20, and the staff 20 approaches the braille block 10 and receives data composed of a predetermined algorithm and letters and numbers .

The cane 20 compares the stored data with input data and converts the corresponding data into voice to inform the blind. At this time, if specific data such as K1, K2, K3, K4, etc. are input, Compares input data with stored data and outputs information corresponding thereto.

For example, in K1, K is proceeding in a free direction. The current road situation informs the visually impaired that the driver is walking on a flat sidewalk. In case of K2, which direction is proceeding, In the case of K3, a voice is output to warn the user that he / she is proceeding to the same step as described above and has a step down on the front.

As described above, K1 and the like are described as one example, and the contents of the direction of the alphabet in which direction and the data of the back digits and the sidewalk according to the progress direction are set in advance, and the RFID / NFC tag 12 ), So that the cane 20 can receive it and read it.

As described above, the setting of the specific data can be performed by variously changing the type of the algorithm according to the place of manufacture or installation.

Namely, in order to increase the convenience of the visually impaired (dangerous area, crosswalk, downhill, uphill, downhill, uphill, etc.), a specific algorithm is formed in various forms and recorded in the RFID / NFC tag 12 of the braille block .

Again, if the visually impaired person crosses at least two canes 20 with the braille block 10 having the RFID / NFC tag 12 installed on the sidewalk, as shown in the figure, The wirelessly input data is analyzed and the visually impaired is notified by voice through the analyzed data.

That is, if at least two or more braille blocks 10 are communicated with the staff 20, it is determined that the current blind person is moving in the staff, and at the same time, .

For example, if the visually impaired person has fixed the wand 20 on one braille block 10, the contents of the progress direction are not notified because the change in the data value applied by the RFID / NFC tag 12 There is no way to tell the direction of progress.

However, when the wand 20 passes two to three or more Braille blocks 10, the data values stored in the RFID / NFC tag 12 are continuously input, and the staff 20 Since the blind person judges that the blind person is moving, the moving direction is informed by voice.

When the visually impaired person moves forward, even when the staff 20 moves to the braille block 10 provided in the lateral direction of one of the braille blocks, no voice guidance is made with respect to the traveling direction as described above.

This makes it possible to position the wand in another braille block 10 neighboring in the lateral direction in the process of the visually impaired person, so that the data value of the changed braille block 10 is input, , The value for the visually impaired can not be guided by voice because it may be confused.

When at least two data values of the RFID / NFC tag 12 of the braille block 10 are input, the blind person is voiced to the blind person.

If the visually handicapped person is walking and turning back, the direction guidance according to the traveling direction and the direction guidance due to the reverse traveling are guided in the same manner NFC tag 12 of the braille block 10 only when at least two or more data items are received, the direction of travel is guided to the visually impaired person, and at this time, Guides the direction of the destination when the user proceeds in the reverse direction, not to guide the direction of the forward direction, so as to grasp whether or not the visually impaired person is going in the direction to which the user wants to go.

When the RFID / NFC tag 12 receives two or more pieces of data, the RFID / NFC tag 12 guides the traveling direction of the RFID / NFC tag 12 in the reverse direction of the traveling direction. ) Is analyzed by the cane 20, and the direction is guided in the reverse direction.

It is not limited to the method of previously storing data in the RFID / NFC tag 12 installed in the braille block 10, receiving the stored data at the staff 20, analyzing the data and informing the blind person , A method of inputting a position value to the braille block 10 and guiding the blind person by the input position value can be performed.

In the case of the RFID / NFC tag 12 installed in the braille block 10, data to which X, Y position values are additionally given can be inputted.

The positional value stored in the RFID / NFC tag 12 of the braille block 10 can be determined by adding or subtracting its value.

That is, the progress direction and the front, rear, left, and right positions are determined according to the positional value of X and Y. This means that the front, back, left, and right sides of the block stored in the RFID / NFC tag 12 built in the braille block 10 The position information is stored in the cane 20 while the position information is relatively changed according to the moving direction.

For example, when the braille block 10 shown in FIG. 1 or 2 moves in the left or right direction at the intersection, the staff moves to the braille block 10 installed in the lateral direction in the figure, The controller 10 sequentially applies data of K1 and data of K2 to the staff 20 and judges that the staff 20 has increased the Y value of the position through the applied data, .

As described above, according to the change of the X and Y values, it is possible to grasp whether the blind person is facing forward or backward, and can accurately guide the direction of the blind.

FIG. 7 is a block diagram showing a configuration of another embodiment of a walking stick of an algorithm guide braille block blind person guidance guidance system in which a unique number is assigned to an RFID / NFC tag according to the present invention.

The robot shown in Fig. 7 allows the robot 20 to be coupled to the wand 20 with the configuration of the present application filed by the present applicant, and will be described in order to facilitate the understanding of those skilled in the art.

The braille block 10 described in Figs. 1 and 2 is not limited to the above-described configuration, and a coating line made of a synthetic resin material can be provided on the sidewalk in the form of a strip.

An RFID / NFC tag 12 is installed in the braille block 10 so as to enable wireless communication with a specific algorithm code so as to inform the visually impaired.

A wand 20 to which the robot 40 is coupled is configured to communicate with the RFID / NFC tag 12 installed in the braille block 10.

The robot 40 has a body 41 formed in a predetermined shape and a coupling groove 41 is formed on the body 41 so that the wand 20 can be coupled to the body 41.

A plurality of wheels 43 are installed on the lower portion of the body 41 so that the robot 40 can be moved forward or rearward and a body 43 provided with the wheels 43 is driven to drive the wheels 43 A motor 44 is installed.

A robot controller 45 is arranged inside the body 41 to control the driving of the motor 44.

A signal corresponding to the operation of the switch 23 is applied to the robot controller 45 and the motor 44 is driven by the applied signal to turn the body 41 An obstacle detector 46 is installed on one side of the body 41 to detect other obstacles in the movement of the robot 40 when the robot 40 is moved in a predetermined direction by rotating the wheel 43 installed on the obstacle detector 46 are under the control of the robot controller 45.

When the body 41 is moved in one direction, the presence or absence of an obstacle is detected through the obstacle sensor 46 provided on the body 41, and at the same time, communication with the RFID / NFC tag 12 installed in the braille block 10 The RFID / NFC reader 47 is installed on the inner bottom surface of the body 41. [

The operation of the guidance braille block blind guide guidance system in which the unique number is assigned to the RFID / NFC configured as described above is as follows.

The wand 20 is inserted into the engaging groove 42 formed in the body 41 of the robot 40 and placed in the braille block 10 so that the visually impaired person can move to the predetermined position, 47 are communicated via wireless communication.

The RFID / NFC tag 12 is installed in the braille block 10 and when a signal is transmitted from the RFID / NFC reader 47 installed in the body 41, the braille block 10 The RFID / NFC tag 12 installed in the RFID / NFC tag 12 is activated to wirelessly apply a specific algorithm value inherent to the RFID / NFC tag 12.

The robot controller 47 analyzes the signal according to the specific value applied by the radio. At this time, the RFID / NFC tag 12 wirelessly transmits at least two specific values to the RFID / NFC tag 12, And outputs it as a voice so as to know whether it is proceeding.

When the process proceeds in the reverse direction, the robot controller 47 wirelessly transmits at least two specific algorithm values to the RFID / NFC tag 12 as described above, and analyzes the position of the RFID / NFC tag 12 in the reverse direction of the traveling direction .

At this time, it is determined whether or not an obstacle is present through the obstacle detector 46 installed at one side of the body 41, and it is determined that there is an obstacle It is transmitted by voice to prevent accidents.

When the visually impaired person moves with the robot 40 installed on one side of the wand, the robot 40 moves while pushing the robot 40 with the wand 20 and drives the motor 44 provided inside the body 41, So that the wheel 43 mounted on the lower portion of the body 41 can be rotated and moved.

That is, the user is guided by the robot 40 coupled to the cane 20 and moved.

The present invention is not limited to the configuration shown in FIG. 7A, but can be implemented differently as shown in FIG. 7B, and the configuration thereof will be described.

The robot 40 will not be described with respect to the same configuration in the configuration shown in FIG. 7A, and the configuration will be described only for the other configurations.

A camera for recognizing a variety of images is mounted on the front, left, right, and rear surfaces of the body 41 of the robot 40. The camera includes a body 41 of the robot 40, It is determined whether or not it has departed from the line.

The camera 48 installed in the body 41 of the robot captures the braille block 10 and reads the captured image in the controller 30 to determine whether the braille block 10 has deviated from the braille block.

The reading is performed by binarizing the image photographed by the camera 48 and determining whether the body 41 of the robot 40 has deviated from the braille block 10 by using the binarized data.

When the body 41 is separated from the braille block 10, the driving of the motor 44 installed on the body 41 is controlled so as to be located inside the braille block 10 in accordance with the direction in which the blind person advances, (40).

As described above, the RFID / NFC tag 12 signal installed in the braille block 10 is received and the position of the RFID / NFC tag 12 is detected. At the same time, if a signal in the forward direction or a signal in the reverse direction is input So that the direction of the visually impaired person can be grasped in which direction the starting person can move to the desired position.

Therefore, the visually impaired person can wirelessly detect the RFID / NFC tag 12 installed in the braille block 10, notify the progress direction by voice, and know the progress direction of the direction change when the progress direction is changed. There are advantages.

When the data values of the Braille block 10 are inputted in the reverse order, the reverse direction direction specific number algorithm information is transmitted through the staff 20 by voice, It is possible to accurately grasp the progress position.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

10: Braille block 11: Intersection block
12: RFID / NFC tag 20: cane
21: antenna 22: hooked
23: Switch 24: Battery
25: earphone jack 26: earphone
27: circuit board 28: RF tag signal sensing unit
29: A / D changing section 30:
31: memory 32: audio processor
33: voice memory 34: obstacle detection sensor
35: camera 36: recording /
40: robot 41: body
42: engaging groove 43: wheel
44: Motor 45: With robot control
46: Obstacle detector 47: RFID / NFC reader

Claims (8)

delete delete delete delete An algorithm for assigning a unique number to an RFID / NFC tag, the method comprising:
An RFID / NFC tag in which a sequence number or a positional value algorithm or coordinate value is set is installed in the braille block so that the position value can be read through the communication with the wand according to the direction in which the visually impaired person moves, ,
Wherein the braille block includes an intersection block at a portion where the braille block intersects so as to grasp the current position of the blind person,
When at least two communications are made between the RFID / NFC tag and the staff of each braille block, the algorithm or coordinate values set in at least two RFID / NFC tags are read through the communication to indicate the direction in which the visually impaired person proceeds When the algorithm values of the Braille block are inputted in the reverse order, the algorithm or the coordinate value according to the reverse direction is input to the staff, and the progress direction information on the braille block is transmitted from the staff to the voice. Wherein the RFID / NFC tag has a unique number assigned to the RFID / NFC tag.
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