KR101398065B1 - The mathod of saving data on rfid and transmitting-receiving the data for the navigation system to guide the blind - Google Patents

Abstract

The present invention relates to information storage of an RFID tag for visually impaired people navigation system and a method for transceiving the same which include an RFID tag, which is installed in the pedestrian passage of visually impaired people and has a storage space for inputting information for notifying direction, distance and unique name; a receiver for receiving information of the RFID tag while moving along the visually impaired people; and an output device which is connected to the receiver for outputting the information with voice. In the storage space of the RFID tag, navigation information which comprises: a first arbitrary code for displaying one coordinate information and direction, to which an arbitrary X and Y coordinate values are inputted, in at least two directions; and a second arbitrary code for displaying unique name and descriptive word. The receiver selects predetermined navigation information according to the coordination information, recognizes the first and second codes, converts the codes with the unique name into a sentence and outputs the sentence through the output device. Therefore, the installation of RFID tag to all the braille blocks by reducing the installation costs since the amount of information which is to be stored in the RFID tag using a reservation word. Based on the same, the information storage of an RFID tag for visually impaired people navigation system and the method for transceiving the same which make the stable use possible without interconnecting to a separate navigation system such as GPS can be provided.

Description

[0001] The present invention relates to a method and a device for storing information of an RFID tag for a visually handicapped route guidance system and a method for transmitting and receiving the RFID tag,

The present invention relates to a method for storing information and transmitting / receiving information using an arbitrary code reserved in an arbitrary sentence in an RFID tag for a visually impaired person's guide system.

As a social welfare base for the visually impaired, braille blocks are installed on the walkways for road guiding and safe walking, and the installation of such braille blocks is expected to expand to more areas. In recent years, technologies have been proposed in which an RFID tag containing information is mounted on the braille block, a receiver is installed in a stick used by the visually impaired, and the information read by the receiver is voiced.

Japanese Unexamined Patent Application Publication No. 2002-024983 (Feb. 25, 2002) discloses a navigation system for a visually impaired person, which includes a braille block equipped with an RFID tag, a receiver for reading information of the RFID tag, And guide means for generating route guidance information based on the information read by the device. At this time, the RFID tags in which the predetermined number is recorded are arranged in each of the braille blocks, so that the moving direction can be known through the receiving device, and the guide means is provided with the RFID Tag information, and guides the visually impaired by the input path.

As another example, Japanese Unexamined Patent Application Publication No. 2003-091794 (Mar. 23, 2003) discloses an RFID tag in which a unique ID owned by a visually impaired person is recorded and an ID of the RFID tag to guide a visually impaired person to a destination Braille blocks. At this time, the braille block includes a central processing unit for outputting the voice data stored in the memory according to the address of the blind person after identifying the ID, a voice output unit for outputting the voice information to be output, As shown in Fig.

In the former case, the RFID tag is installed in all the braille blocks on the path. In the latter case, the RFID tag is installed in the braille block located at an intersection, a branch point, or a danger point. This difference is deeply related to the installation cost. In the former case, only the location information in which a predetermined number or letter is arranged needs to be stored. Therefore, the RFID tag can be installed in all braille blocks by using an RFID tag having a small storage capacity. '*** on the left, *** on the right, *** on the front, *** on the rear.' Or 'There is *** on the left, so be careful.' And so on. Therefore, the RFID tag is limited to a main place using an expensive RFID tag having a large storage capacity. In the latter case, since a central processing unit and a battery are required to process especially a large amount of information, a lot of manufacturing and supplying costs are incurred.

In addition, the above-mentioned conventional art has a limiting factor that it basically provides route guiding information means such as GPS and guides the route safely in connection with the RFID tag when a departure place and a destination are inputted.

In order to solve this problem, it is necessary to store more information and to transmit and receive it stably, while allowing the RFID tag having low storage capacity and low price to be mounted on all Braille blocks. There is no systematic method for providing information.

In recent years, in constructing a route guidance system for the visually impaired, it is possible to reduce the cost incurred in replacing the existing Braille block with the Braille block equipped with the RFID tag, There has been proposed a technique of directly applying an adhesive synthetic resin together with the RFID tag on a road surface or a structure to install a tag. For example, the RFID tag is embedded at regular intervals while directly applying the adhesive synthetic resin in parallel with the braille block on the road surface, or the groove is formed on the road surface, and the synthetic resin is filled in the state where the RFID tag is embedded . This technique is a basis for constructing a road guidance system for the visually impaired, either in parallel with the existing braille block installed on the walkway or independently.

The present invention reduces the amount of information to be stored in an RFID tag by using a code reserved in an arbitrary sentence, and based on this information, it is possible to store information of the RFID tag for a visually impaired person's guidance system, And a method for transmitting and receiving the same.

The present invention relates to an RFID tag which is installed on a walking path of a visually impaired person and has a storage space for inputting information for informing directions, distances and distinguished names, a receiving device for receiving information of the RFID tag while moving with the visually impaired person, A method for storing and transmitting / receiving information of an RFID tag for a visually impaired person's way guidance system, the method comprising the steps of: receiving an arbitrary X, Y coordinate One coordinate information into which a value is input; And at least two directional guidance information combined with an arbitrary first code indicating a direction and an arbitrary second code indicating a specific name and a descriptor input into the sentence are input, And recognizes the first code and the second code, converts the first code and the second code into a reserved sentence together with the unique name, and transmits the converted sentence to the output device.

The storage space of the RFID tag may include a first sector to which coordinate information is input; And two or more second sectors to which the route guidance information is inputted.

The coordinate information includes an identification value for distinguishing between an RFID tag installed in a branch point or a dangerous area and an RFID tag installed on a straight path, and the receiving device recognizes the identification value and is an RFID tag having a selected identification value And transmits the signal to the output device, and the output device receives the signal and expresses it as a beep or vibration.

The coordinate information includes a zone value for distinguishing upper and lower layers of an area or a building, and the receiving device recognizes the zone value and transmits the route guide information according to the coordinate information to an output device.

The coordinate information includes an alarm value indicating that the RFID tag is installed at a branch point or a dangerous area. The receiving device recognizes the alarm value and transmits a signal indicating that the RFID tag has an alarm value to the output device. The output device receives the signal and displays it as a beep or vibration.

The receiving device includes: an antenna for receiving information stored in the RFID tag; A computing unit for determining the front, rear, left, and right according to the acceleration and deceleration of the coordinate information, and selecting and recognizing the corresponding guidance information; A storage unit for storing each sentence reserved for the first and second codes; And a conversion unit that converts the selected route guidance information into a sentence by substituting the information stored in the storage unit and transmits the sentence to an output device.

The receiving device includes buttons for selecting the front, back, left, and right directions, and recognizes the front, rear, left, and right directions according to the addition and subtraction of the coordinate information, Lt; / RTI >

The RFID tag is supplied with advertisement information which is combined with an arbitrary first code indicating a direction and an arbitrary unique code inputted into a sentence and an arbitrary second code indicating a descriptor.

The receiving device and the output device are installed in a walking stick, which is a walking aid for a visually impaired person.

According to the method of storing and transmitting information of the RFID tag for the visually handicapped route guidance system of the present invention, it is possible to reduce the amount of information to be stored in the RFID tag by using a reserved code in an arbitrary sentence, Accordingly, it is possible to provide a convenient route guidance to the visually handicapped person, and it is possible to use the route conveniently without connecting with a separate route guidance system such as GPS.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a conventional route guidance system for a visually impaired person.
FIG. 2 is an exemplary view showing an arrangement of an RFID tag to which the present invention is applied. FIG.
3 is an exemplary view showing a storage space of an RFID tag to which the present invention is applied.
FIG. 4 is an exemplary view showing a first sector of the RFID tag storage space to which the present invention is applied; FIG.
FIG. 5 is an exemplary view illustrating route guidance information for a second sector of the RFID tag storage space to which the present invention is applied; FIG.
6 and 7 are block diagrams showing an embodiment of the present invention.
8 is a block diagram showing a transmitting / receiving method to which the present invention is applied.

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, a method of storing information and transmitting / receiving information of an RFID tag for a visually impaired passenger guidance system of the present invention includes a storage space for inputting information for informing directions, distances, A receiver 200 for receiving the information of the RFID tag while moving together with the blind person and an output device 300 connected to the receiver and outputting information recognized by the receiver by voice, To a visually impaired person.

At this time, the RFID tag 100 is installed on each of the braille blocks 10a and 10b on the walkway, for example, as shown in FIG. 1, or embedded on the road surface such as a crosswalk along with the adhesive synthetic resin 10c. As another embodiment, the adhesive synthetic resin 10c may be formed in parallel with the existing braille blocks 10a and 10b on the walkway. As shown in FIG. 2, the braille blocks 10a and 10b are divided into a linear shape installed on a straight path and a point shape installed in a branch point or a dangerous area. The RFID tag in which information about the front, back, right, and left four directions are stored can be mounted on the pointed braille block 10a, and in the case of the linear braille block, one RFID tag Can be mounted.

In addition, the receiving apparatus 200 is installed in a staff 20, which is a walking aid tool for a disabled person, and includes an antenna for receiving information of an RFID tag installed at the lower end of the staff, To the output device.

In addition, the output device 300 may include a speaker, an earphone, or a vibrator installed in a staff member, which is a walking aid tool for a disabled person.

In the navigation system for the visually impaired, the RFID tag 100 according to the present invention includes a first code for displaying one coordinate information and a direction for inputting arbitrary X, Y coordinate values into a storage space, And an arbitrary second code for expressing a predicate are input in at least two directions.

As shown in FIG. 2, the coordinate values of the coordinate information are, for example, (0, 0), (0, 4), (0, 5), ..., and (1,4), (2,4), (3,4) ..... on the X axis. Therefore, when the blind person moves from (0,0) point to (0,5) point, the forward direction becomes (0,5) and the rightward direction becomes (1,4) according to successive increase of y value. Conversely, when moving from (0,5) to (0,0), the forward direction becomes (0,0) and the (1,4) becomes the left direction according to the successive decrease of the y value. As described above, when the coordinate information passes through two or more blocks, the x-axis or y-axis is incremented or decremented forward, and the left and right sides are designated with reference to the coordinate information, so that the guidance information in the corresponding direction can be accurately guided.

The coordinate information includes an identification value for distinguishing the RFID tag 100 installed on a branch point or a dangerous area from the RFID tag 100 installed on a straight path. In other words, as described above, the braille block can be generally divided into a point type installed in a branch point or a dangerous area and a linear type installed on a straight path. In the RFID tag 100 installed in the point type braille block 10a, (0, 3), J (0, 4), J (0, 5),... That include an identification value of J before the coordinate value as shown in FIG. 4, (1, 4), S (2, 4), S (3, 4) ..... including an identification value S in front of the coordinate value in the RFID tag 100 installed in the block 10b will be. The identification value input together with the coordinate information is transmitted to the output device 300 by a signal indicating that the RFID tag 100 having the selected identification value is recognized by the receiving device 200 described later. Therefore, for example, a signal is generated in the point-type braille block 10a installed at a branching point or a dangerous area, and the signal is outputted as a beep or vibration through the output device 300. Therefore, Guidance information can be obtained.

The coordinate information includes zone values for distinguishing upper and lower layers of a region or a building as shown in FIGS. 4, 6, and 7 as another embodiment. Since the zone value is prevented from being increased as many as the number of the braille blocks installed in the area having a large coordinate value, efficient operation can be performed, and the RFID tags 100 installed inside the building are overlapped So that the navigation system can be operated more conveniently. Such a zone value may be provided together with, for example, the coordinate values. As shown in FIG. 6, three-digit numbers 001 and 002 in front of coordinate information of the RFID tag 100 installed in the first zone and the second zone By dividing each zone or layer, even if the same coordinate information as J (0, 5) is used, the receiving apparatus 200 distinguishes the same. At this time, the zone value can be used from 1 to 127, for example.

As shown in FIG. 4, the coordinate information includes an alarm value indicating that the RFID tag is installed at a branch point or a dangerous area. The alarm value input together with the coordinate information may be represented by '0' or '1', for example. Accordingly, the receiver 200 recognizes the alarm value and transmits a signal indicating that the RFID tag 100 has the selected alarm value to the output device 300. For example, In the point-type braille block 10a installed in the dangerous area, a signal according to the alarm value '1' is generated. Since the signal is outputted as a signal or vibration through the output device 300, It can be prevented.

As shown in FIG. 4, the coordinate information uses 2 bytes to store the coordinate value, 1 byte to store the identification value and the zone value, and 1 byte to store the alarm value.

As shown in FIG. 2, the route guidance information is stored in each RFID tag 100 of the braille blocks 10a and 10b installed in the subway of the Kangnam station, for example, to the exit direction 1, the elevator direction, Direction guidance information for two directions of the elevator and the second exit are inputted to the S (3,4), and the guidance information for the first exit and the platform is inputted to the S (5,2) On the other hand, the route guidance information for four directions of the exit # 1, the elevator, the platform, and the # 2 exit are inputted to the J (5,4). At this time, the information on the route is 'There is an elevator in front of 1 meter', 'The exit is at exit 2,' and 'There is exit 1 at the direction you selected'. And 'there is a platform in the direction indicated.' In the form of a sentence, if necessary, 'Please note.' Or 'Please press the acoustic signal button'. Therefore, since a large amount of storage space is required for inputting all the route guidance information into the RFID tag 100, codes reserved for sentences are used as a means for reducing the storage space. Therefore, the route guidance information of the present invention can be expressed by, for example, an arbitrary first code indicating '1 meter ahead', 'forward', 'selected direction', or 'indicated direction' , And a descriptive phrase such as' yes', 'direction', 'please note', or 'please press a sound signal button', for example, in a sentence such as' exit ',' elevator ',' And a second code indicating a second code. Here, the first and second codes are combined, for example, by one or more digits or letters as shown in FIG. As shown in FIG. 5, 13 characters are required to be input when the existing route guidance information is input. On the other hand, when a reserved code is used as a sentence, a first code 4, Since one second code (1) is input, it is possible to save a lot of information storage space compared to the existing route guidance information. At this time, according to the method of inputting the conventional route guidance information, for example, since more than 12 Korean characters are used, an additional 24 bytes of storage space is required beyond the storage capacity. Thus, the first and second codes and the reserved sentences can be associated with each other as shown in the lower part of FIG. Therefore, not only the storage space of the entire RFID tag can be reduced, more route guidance information can be input, and the storage space with a large capacity can be used more efficiently as the storage space reduced in inputting the one guidance information. Meanwhile, as an embodiment of the present invention, the RFID tag 100 is provided with an arbitrary first code for indicating a direction, an arbitrary unique name inputted in a sentence, and advertisement information combined with an arbitrary second code for expressing a descriptor, . That is, as shown in FIG. 2, there are a lot of shopping streets on the left and right of the moving section of the subway. Of those, '****', which requires an advertisement, 'And' **** is on the right ', so that the blind can use it.

As shown in FIG. 3, the storage space of the RFID tag 100 is divided into a first sector to which the coordinate information is input and a second sector to which the guidance information is input, . That is, the linear braille block 10b is provided with two second sectors for inputting the front and rear directional guidance information, and the pointed braille block 10a is provided with four The second sector is provided. The coordinate information of the second sector stores coordinate values, identification values, zone values, or alarm values described above as shown in FIG.

The receiving apparatus 200 of the present invention selects the route guidance information according to the acceleration / deceleration of the coordinate information, recognizes the first code and the second code, converts the first code and the second code into a sentence with a proper name, Lt; / RTI > That is, since the y-axis coordinate value continuously increases when moving from the exit # 1 of the receiving device 200, for example, the receiving device 200 is in the direction of the landing direction, and when moving in the elevator direction, As shown in FIG.

When the route guidance information is selected in accordance with the addition or the subtraction of the coordinate information, for example, the information (1) in the form of '(4) Elevator (1)' including the first code 4 and the second code And then translates the sentence according to the pre-stored code of each reserved word into "There is an elevator in front". The route guidance information converted into the sentence form is transmitted to an output device such as a microphone or an earphone. 8, the receiving apparatus 200 determines whether the receiving antenna 200 is a normal antenna 210 for receiving stored information of the RFID tag 100, A storage unit 230 for storing a sentence corresponding to the first and second codes, and a storage unit 230 for storing the selected route guidance information into a sentence by substituting the information stored in the storage unit For example, a conversion unit 240 such as a TTL (voice synthesis) engine, which transmits the data to an output device. Such a configuration is installed on a walking stick, which is a walking aid tool for the visually impaired.

The receiving apparatus 200 includes a button unit 250 for selecting the front, back, left, and right directions, and recognizes the forward, backward, leftward, and rightward directions according to the addition and subtraction of the coordinate information, And transmits the guidance information of the RFID tag to the output device. That is, in the braille block equipped with the RFID tag in which the coordinate information is J (5, 4), a signal indicating the branch point is generated as described above. In this case, the blind person needs to move back and forth It is possible to obtain the guidance information for the four directions by pressing the button with ease. At this time, the user recognizes the acceleration / deceleration of the coordinates and recognizes the front / back and left / right directions. For example, if a blind person moving toward the landing direction in the direction of the first exit direction presses the left button, There is an elevator on the left side ".

In addition, the receiving apparatus 200 may recognize the identification value, the zone value, and the alarm value and transmit the corresponding guidance information to the output device as described above. For example, the receiving apparatus 200 may receive the identification value And transmits to the output device a signal indicating that the RFID tag has the selected identification value. The output device receives the signal and exposes the signal as a beep or vibration, recognizes the zone value, Transmits the information to the output device, recognizes the alarm value, and transmits a signal indicating the RFID tag having the selected alarm value to the output device, and the output device receives the signal and displays it as a beep or vibration.

The output device 300 directly transmits route guidance information to a visually impaired person through voice or vibration. The output device 300 includes a speaker, an earphone, or a vibrator. As described above, the output device 300 is installed on a walking stick, which is a walking aid tool for a visually impaired person.

Therefore, according to the present invention, an amount of information to be stored in an RFID tag can be reduced by using a reserved code in an arbitrary sentence, so an inexpensive RFID tag can be installed on all the walkways, And can be used conveniently without linking with a separate navigation system such as GPS.

10a; Point Braille Block 10b: Linear Braille Block
10c: Adhesive synthetic resin
20: Staff
100: RFID tag
200: receiving apparatus 210: antenna
220: Operation unit 230:
240: conversion section 250: button section
300: Output device

Claims (9)

An RFID tag having a storage space for inputting information for indicating a direction, a distance, and a proper name while being installed on a walkway of a visually impaired person, a receiving device for receiving information of the RFID tag while moving with the visually impaired person, A method of storing and transmitting / receiving an RFID tag for a visually impaired person's guidance system, the method comprising:
The storage space of the RFID tag may include a first sector in which one coordinate information into which arbitrary X and Y coordinate values are input and an arbitrary first code indicating a direction and an arbitrary first code indicating an arbitrary name and a descriptor 2 code, wherein at least two directions of at least two directions are input, and the coordinate information includes an RFID tag installed in a branch point or a dangerous area and an RFID tag installed on a straight path An identification value, an alarm value indicating that the RFID tag is installed at the fork or the danger zone, and a zone value for distinguishing upper and lower layers of the area or the building,
Wherein the receiving device selects the set route guidance information according to the increment or decrement of the coordinate value, recognizes the first code and the second code, converts the first code and the second code into a reserved sentence with a unique name, and transmits the reserved sentence to the output device, And transmits a signal indicating the RFID tag having the selected identification value to the output device, recognizes the alarm value, and transmits a signal indicating the RFID tag having the selected alarm value to the output device, And transmits the guidance information according to the coordinate information to the output device,
Wherein the output device outputs the information as voice and displays the identification value or the alarm value signal as a beep or vibration. The information storage device of the RFID tag for the visually impaired person, Way.
delete delete delete delete The apparatus of claim 1,
An antenna for receiving information stored in the RFID tag;
A computing unit for determining the front, rear, left, and right according to the acceleration and deceleration of the coordinate information, and selecting and recognizing the corresponding guidance information;
A storage unit for storing each sentence reserved for the first and second codes; And
And a conversion unit for converting the selected route guidance information into a sentence by substituting the information stored in the storage unit and transmitting the converted sentence to an output device. And a transmitting and receiving method thereof.
[2] The apparatus of claim 1, wherein the receiving device is provided with a button portion for selecting the front, back, left,
And recognizes the front, rear, left, and right directions according to the addition and subtraction of the coordinate information, and transmits the RFID tag's route guidance information to the direction of the selected button to the output device. And transmitting and receiving the same.
delete The method of claim 1, wherein the receiving device and the output device are installed on a walking stick, which is a tool for the blind.

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