WO2015084066A1

WO2015084066A1 - Method for storing, transmitting, and receiving information of rfid tag for road guidance system for visually impaired person

Info

Publication number: WO2015084066A1
Application number: PCT/KR2014/011808
Authority: WO
Inventors: 김지훈
Original assignee: (주)부성 리싸이클링; 김지훈
Priority date: 2013-12-04
Filing date: 2014-12-04
Publication date: 2015-06-11
Also published as: JP6179745B2; JP2016541065A; KR101398065B1; CN105793907A

Abstract

The present invention relates to a method for storing, transmitting and receiving information of an RFID tag for a road guidance system for a visually impaired person, the system comprising: an RFID tag which is provided on a pedestrian sidewalk for a visually impaired person, and which has a storage space for inputting information for indicating direction, distance, and unique names; a reception device for receiving the information of the RFID tag by being moving together with the blind person; and an output device connected to the reception device to output the information as a voice, wherein: one piece of coordinate information to which random X and Y coordinate values are inputted and road guidance information having at least two directions and combined with a first random code for indicating directions and a second random code for indicating a random unique name and a descriptive word, are inputted into the storage space of the RFID tag; and the reception device selects road guidance information set according to adjustment of the coordinate information, recognizes the first code and the second code so as to convert the codes into a sentence with a unique name, and transmits the sentence to the output device.

Description

Information Storage and Transmitting / Receiving Method of RFID Tag for Visually Impaired Road Guide System

The present invention relates to a method for storing information and transmitting and receiving information using an arbitrary code reserved in an arbitrary sentence in an RFID tag for a visually impaired road guidance system.

As a social welfare foundation for the visually impaired, there are braille blocks on the pedestrian path for road guidance and safety walking, and the installation of these braille blocks will expand to more areas. Recently, technologies for mounting an RFID tag containing information in the braille block, installing a receiving device on a cane used by the visually impaired, and guiding information read from the receiving device by voice have been proposed.

As such, as an example of a route guidance system for the visually impaired, Japanese Patent Laid-Open No. 2002-024983 (2002.01.25.) Includes a braille block equipped with an RFID tag, a receiving device for reading information of the RFID tag, and the reception. Guide means for generating route guidance information based on the information read from the device. At this time, each braille block has an RFID tag with a predetermined unique number recorded therein so as to know the direction of movement through the receiving device, and the guide means has an RFID of each braille block based on geographic information such as a map. It stores tag information and guides the visually impaired to the input path.

As another example, Japanese Laid-Open Patent Publication No. 2003-091794 (2003.03.28.) Reads an RFID tag having a unique ID owned by a blind person and an ID of the RFID tag to guide the destination where the blind person wants to go. Consists of braille blocks. In this case, the braille block is supplied with a memory for storing the voice data and the ID, and a central processing unit for outputting the voice data stored in the memory according to the destination of the visually impaired, and a voice output unit for outputting the voice information to be output. It consists of a power supply unit.

Looking at these two prior arts, it can be seen that in the former case, the RFID tag is installed in all of the braille blocks on the path, and in the latter case, the RFID tag is installed only in the braille blocks located at intersections, branch points, or dangerous points. This difference is intimately related to the installation cost. In the former case, since only the location information with a predetermined number or letter is stored, it can be installed in all Braille blocks using a low-cost RFID tag with low storage capacity. For 'left on ***, right on ****, front on *** and rear on ***.' Or 'You need *** because it is on the left.' Since relatively large amounts of information need to be stored, expensive RFID tags with large storage capacities are installed only in major places. In the latter case, since a central processing unit and a battery have to be configured to process a lot of information, a lot of costs are incurred in production and supply.

In addition, the prior art is basically provided with a road guidance information means such as GPS, there is a limiting element to safely guide the road in connection with the RFID tag when the starting point and destination.

In order to solve this problem, it is necessary to store more information and reliably transmit and receive information while allowing it to be mounted on all Braille blocks using a low-cost and low-capacity RFID tag. No systematic method has been provided.

On the other hand, recently, in constructing a road guidance system for the visually impaired, it is possible to reduce the cost incurred when replacing an old Braille block with a Braille block equipped with an RFID tag. In order to install a tag, a technique of directly applying an adhesive synthetic resin together with the RFID tag on a road surface or a structure has been proposed. For example, embedding the RFID tag at equal intervals while directly applying an adhesive synthetic resin in parallel with the braille block on the road surface, or forming a groove on the road surface and filling the synthetic resin in the state where the RFID tag is embedded. . This technology is the basis for building a road guidance system for the visually impaired by installing it independently or in parallel with existing Braille blocks installed on pedestrian paths.

The present invention reduces the amount of information to be stored in the RFID tag by using a code reserved in any sentence, and based on this information storage of the RFID tag for the visually impaired road guidance system for the convenient way for the visually impaired and It is to provide a method for transmitting and receiving thereof.

The present invention is installed on a walking path of the visually impaired and the RFID tag having a storage space for inputting information for informing the direction, distance, unique name, and receiving device for receiving the information of the RFID tag while moving with the visually impaired and the In the information storage and transmitting and receiving method of the RFID tag for the visually impaired road guidance system comprising an output device connected to a receiving device for outputting the information by voice, in the storage space of the RFID tag arbitrary X, Y coordinates One coordinate information into which a value is input; And road guidance information of at least two directions combined with any first code indicating a direction and any unique name inputted with a sentence and any second code indicating a predicate, and the receiving apparatus receives the coordinate information. After selecting the set road guidance information according to the addition and decrease of the first code and the second code is recognized and converted into a reserved sentence with a unique name and transmits it to the output device.

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

The coordinate information includes an identification value for distinguishing an RFID tag installed at a branch point or a dangerous area from 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. A signal to be displayed is transmitted to the output device, and the output device receives the signal and expresses it with a beep or vibration.

The coordinate information includes an area value for distinguishing an upper or lower floor of an area or a building, and the receiving device recognizes the area value and transmits road guidance information based on 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, and the receiving device recognizes the alarm value and transmits a signal indicating that the RFID tag has a selected alarm value to the output device. The output device receives the signal and expresses it with a beep or vibration.

The receiving device includes an antenna for receiving stored information of the RFID tag; An operation unit that determines front, rear, left and right, and selects and recognizes road guidance information according to the coordinate information; A storage unit for storing each sentence reserved for the first and second codes; And a converting unit converting the selected road guidance information into information stored in the storage unit and converting the selected road guide information into a sentence and transmitting the converted path information to an output device.

The receiving device includes a button for selecting the front, rear, left, and right directions, and outputs the road guide information of the RFID tag for the direction of the selected button by recognizing the front, rear, left, and right directions according to the increment of the coordinate information. To the device.

The RFID tag is inputted with an arbitrary first code indicating a direction and an arbitrary unique name input in a sentence and an arbitrary second code indicating a predicate.

The receiver and the output device are installed in a walking stick, which is an auxiliary walking tool for the visually impaired.

According to the method of storing information and transmitting / receiving information of the RFID tag for the visually impaired road guidance system of the present invention, a cheap RFID tag is installed on all pedestrian paths because the amount of information to be stored in the RFID tag is reduced by using a code reserved for an arbitrary sentence. It is possible, and based on this, it is possible to use the convenient way for the visually impaired without being associated with a separate road guidance system such as GPS.

1 is a block diagram showing a conventional road guidance system of a conventional blind.

Figure 2 is an illustration showing the arrangement of the RFID tag to which the present invention is applied.

3 is an exemplary view showing a storage space of an RFID tag to which the present invention is applied.

4 is an exemplary view showing a first sector of an RFID tag storage space to which the present invention is applied.

FIG. 5 is an exemplary view showing road guidance information for a second sector of an RFID tag storage space to which the present invention is applied. FIG.

6 and 7 is a block diagram showing an embodiment of the present invention.

8 is a block diagram illustrating a transmission and reception method to which the present invention is applied.

Information storage and RFID transmission method of the RFID tag for the visually impaired road guidance system of the present invention is installed on the pedestrian path as shown in Figure 1 while the storage space to input the information to inform the direction, distance, unique name Receiving apparatus 200 for receiving the information of the RFID tag while moving together with the RFID tag 100 and the visually impaired and the output device 300 connected to the receiving device and outputs the information recognized by the receiving device as a voice Applied to the road guidance system for the blind.

At this time, the RFID tag 100 is installed on each

braille block

10a, 10b on the pedestrian path as shown in FIG. 1, or embedded with the adhesive synthetic resin 10c on the road surface such as a crosswalk. As another example, the adhesive synthetic resin 10c may be formed to be parallel to the existing

braille blocks

10a and 10b on the pedestrian path. As illustrated in FIG. 2, the

braille blocks

10a and 10b are divided into a linear line installed on the advanced route and a dotted line installed at a branch point or a dangerous area. The linear braille blocks 10b include two front and rear directions. The RFID tag storing information about the braille block 10a may be equipped with an RFID tag storing information about four directions in the front, rear, left, and right directions, and in the case of a linear braille block, one RFID tag at a predetermined interval, such as 2 or 3 spaces. Can be mounted.

In addition, the receiving device 200 is installed in the cane 20, which is a walking aid for the disabled as an embodiment, and is installed at the bottom of the can include an antenna for receiving the information of the RFID tag and the received information Transfer to the output device.

In addition, the output device 300 is configured as a speaker, earphone or vibrator is installed in the cane as a walking aid for the disabled as an embodiment.

The RFID tag 100 of the present invention in such a system for guiding a blind person is an arbitrary first name and any unique name indicating one coordinate information and a direction in which an arbitrary X and Y coordinate value is input to a storage space. And road guidance information in at least two directions combined with any second code indicating a predicate.

The coordinate values of the coordinate information are (0,3), (0,4), (0,5) ... in the y-axis from any starting point (0,0), for example, as shown in FIG. ...., arranged on the X-axis as (1,4), (2,4), (3,4) ..... Therefore, when the visually impaired person moves from the point (0,0) to the point (0,5), the front becomes (0,5) and the right side becomes (1,4) according to the continuous increase of the y value. On the contrary, when moving from the point (0,5) to the point (0,0), the front becomes (0,0) and the (1,4) becomes left according to the continuous decrease of the y value. As described above, the coordinate information is an acceleration direction of the x-axis or the y-axis when two or more blocks pass through each other, and the left and right sides are designated based on the coordinate information to accurately guide the road guidance information in the corresponding direction.

The coordinate information includes, for example, an identification value for distinguishing the RFID tag 100 installed at a branch point or a dangerous area from the RFID tag 100 installed on a straight path. That is, as mentioned above, the braille block may be classified into a linear type installed on a straight path and a point type normally installed at a branch point or a dangerous area, and the RFID tag 100 installed in the braille block 10a is illustrated in FIG. 2. And J (0,3), J (0,4), J (0,5) ... including the identification value J before the coordinate value, as shown in FIG. The RFID tag 100 installed in the block 10b includes S (1,4), S (2,4), S (3,4) ..... which include the identification value S before the coordinate value. will be. As such, the identification value input together with the coordinate information causes the reception apparatus 200 to be described later to recognize and transmit a signal indicating that the RFID tag 100 has the selected identification value to the output apparatus 300. Therefore, for example, a signal is generated in a braille block 10a installed at a branch point or a dangerous area, and the signal is output as a beep or vibration through the output device 300, so that the visually impaired person pays more attention or needs a path. Guide information can be obtained.

As another example, the coordinate information includes an area value for distinguishing an upper or lower floor of an area or a building, as illustrated in FIGS. 4 and 6 and 7. The zone value prevents the coordinates from growing as large as the number of all Braille blocks installed in a large area, so that efficient operation is achieved. In particular, since the distinction is made between floors, the RFID tags 100 installed inside the building are overlapped. Installation without a road guide system makes the operation more convenient. Such a zone value may be provided together with the coordinate value, for example, and the three-digit numbers 001 and 002 in front of the coordinate information of the RFID tag 100 installed in the 1 zone and the 2 zone as shown in FIG. By distinguishing each zone or floor, even if the same coordinate information of J (0,5) is used, the reception apparatus 200 distinguishes it. In this case, the zone value may be used, for example, from 1 to 127.

As another example, the coordinate information includes an alarm value indicating that the RFID tag is installed at a branch point or a dangerous area as shown in FIG. 4. As such, the alarm value input together with the coordinate information may be displayed as '0' or '1', for example. Therefore, the receiving device 200 to be described later recognizes the alarm value and transmits a signal indicating that the RFID tag 100 having the selected alarm value to the output device 300, for example, such as a crosswalk or stairs In the braille block 10a installed in the hazardous area, a signal according to the alarm value '1' is generated, and the signal is output as a beep or vibration through the output device 300, so that the visually impaired person pays more attention to an accident. It can be prevented.

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

The way information is stored in each RFID tag 100 of the braille blocks (10a, 10b) installed in the Gangnam subway, for example, as shown in Figure 2 exit 1, elevator direction, platform direction, exit 2 In order to guide the direction, S (3, 4) is inputted the road guidance information for the two directions of the elevator and exit 2, S (5, 2) is inputted the road guidance information for exit 1 and platform On the other hand, J (5, 4) is the road guidance information for the four directions of exit 1, elevator, platform and exit 2. At this time, the route information is 'the elevator is 1 meter ahead', 'the front is toward exit 2', 'the exit is 1'. And 'There is a platform in the direction indicated.' It is provided in the form of a sentence, and if necessary, please be careful. Or ancillary text "Please press the sound signal button". Therefore, since a lot of storage space is required to input all of the road guide information in the RFID tag 100, a code reserved as a sentence is used as a means for reducing this. Accordingly, the road guidance information of the present invention is an arbitrary first code for displaying a direction such as 'one meter ahead', 'forward', 'in a selected direction' or 'in a designated direction', and the like. Proper names, such as "exit", "elevator", "destination platform" and "exit 2", and predicates such as "is", "direction", "please be careful" or "press sound signal button" Is combined with an arbitrary second code indicating. In this case, the first and second codes are combined with one or more digits or letters, for example, as shown in FIG. 3. In contrast, as shown in FIG. 5, when inputting the existing road guide information, 13 characters should be input, whereas when using a code reserved as a sentence, one first code (4) and 5 characters and Since only one second code 1 is inputted, the storage space of the information can be greatly reduced compared to the existing road guide information. In this case, according to the conventional method of inputting the road guide information, since more than 12 characters of Korean characters are used, the storage capacity of 24 bytes is inevitably required beyond the storage capacity. Thus, the first and second codes and reserved sentences may correspond to each other as shown in the lower part of FIG. 5. Therefore, the amount of storage space of the entire RFID tag can be reduced or more road guidance information can be input as much as the storage space is reduced in inputting one way guidance information, and a large capacity storage space can be utilized more efficiently. Meanwhile, as an embodiment of the present invention, the RFID tag 100 is inputted with an arbitrary first code indicating a direction and an arbitrary unique name input as a sentence and an arbitrary second code indicating a predicate. Can be. That is, as shown in FIG. 2, there are many shopping malls located on the left and right of the moving section of the subway, and among the companies '****' requiring advertisements, there are '****' on the left side according to the front and rear direction. ',' **** is on the right 'is to enter the advertisement to make it available to the blind.

As shown in FIG. 3, the storage space of the RFID tag 100 is divided into a first sector into which the coordinate information is input and two or more second sectors into which the road guide information is input. To facilitate this. That is, the linear braille block 10b is provided with two second sectors for inputting directions information in two directions, and the braille block 10a includes four directions for inputting directions in four directions. Second sectors are provided. Coordinate values, identification values, zone values, or alarm values described above are stored in the coordinate information of the second sector as shown in FIG. 4.

The reception apparatus 200 according to the present invention selects the set road guidance information according to the addition or decrease of the coordinate information, recognizes the first code and the second code, converts them into sentences together with unique names, and then outputs them to the output device 300. To send. That is, the receiving device 200 is in the direction of the landing because the y-axis coordinate value continuously increases when moving from exit 1, for example, and the x-axis coordinate value is changed when the elevator device moves in the elevator direction. It is to choose directions information for.

When the road guide information is selected as the coordinate information is added or decreased as described above, for example, as shown in FIG. 5, the information is formed in the form of '(4) elevator 1' including the first first code 4 and the second code 1. After recognizing this, it will solve the sentence according to each pre-stored code and convert it to 'there is an elevator in front.' The road guide information converted into the sentence form is transmitted to an output device such as a microphone or earphone. Therefore, as shown in FIG. 8, the reception apparatus 200 determines front, rear, left, and right sides according to the general antenna 210 and the coordinate information of the coordinate information to receive the stored information of the RFID tag 100 as shown in FIG. The operator 220 selects and recognizes the route guidance information, the storage unit 230 storing the sentences corresponding to the first and second codes, and converts the selected route guidance information into the sentence by substituting the stored information into the sentence. Thereafter, a conversion unit 240 such as, for example, a TTL (speech synthesis) engine for transmitting it to the output device is provided. This configuration is to be installed on the walking stick, a walking aid for the visually impaired.

On the other hand, the receiving device 200 is provided with a button unit 250 for selecting the front, rear, left, right directions, while recognizing the front, rear, left and right directions according to the addition or subtraction of the coordinate information for the direction of the selected button The route guidance information of the RFID tag is transmitted to the output device. That is, in the braille block equipped with the RFID tag with the coordinate information J (5,4), a signal indicating a branch point is generated as described above. In this case, the visually impaired person needs to move back, forth, left, and right to check each direction of the branch point. You can get directions in 4 directions by simply pressing the button. In this case, the coordinates of the coordinates are recognized to recognize the front, rear, left, and right directions. For example, when the visually impaired person who moves toward the platform in exit 1 presses the left button, the platform is automatically moved in front of the coordinate information. There is an elevator on the left '.

In addition, the receiver 200 may recognize the identification value, the zone value, and the alarm value as described above, and transmit the road guide information according to the identification value. For example, the receiver 200 may identify the identification value. Recognizes and transmits a signal indicating that the RFID tag having a selected identification value to the output device, the output device receives the signal and expresses it with a beep or vibration, and recognizes the zone value to guide the way according to the coordinate information It transmits information to an output device, and recognizes the alarm value and transmits a signal indicating that it is an RFID tag having a selected alarm value to the output device, and the output device receives the signal and expresses it with a beep or vibration.

The output device 300 directly delivers the road guide information to the visually impaired through voice or vibration, and includes a speaker, earphone, or vibrator. The output device 300 is installed in the walking stick as a walking aid for the visually impaired as described above.

Therefore, according to the present invention, since the amount of information to be stored in the RFID tag is reduced by using a code reserved in an arbitrary sentence, an inexpensive RFID tag can be installed on all pedestrian paths, and thus a convenient way to guide the visually impaired is possible. It can be used conveniently without being connected to a separate road guidance system such as GPS.

Claims

An RFID tag having a storage space for inputting information for informing a direction, a distance, and a unique name while being installed on a walking path of a visually impaired person, and a receiving device and the receiving device for receiving information of an RFID tag while moving together with the visually impaired person; In the information storage and transmitting and receiving method of the RFID tag for the visually impaired road guidance system comprising an output device for outputting the information by voice,

The storage space of the RFID tag may include any first code indicating a first sector and a direction into which one coordinate information into which an arbitrary X and Y coordinate value is input, and an arbitrary first name and a predicate. Two or more second sectors in which at least two directions of the road guidance information are combined into two codes are input, wherein the coordinate information is for distinguishing the RFID tag installed at the branch point or the dangerous area from the RFID tag installed on the straight path. An identification value and an alarm value indicating that the RFID tag is installed at the branch point or the dangerous area and an area value for distinguishing the upper and lower floors of the area or building,

The receiving apparatus selects the set road guidance information according to the increment of the coordinate value, recognizes the first code and the second code, converts them into reserved sentences with unique names, and transmits them to the output device. Transmitting a signal indicating that the RFID tag has a selected identification value by recognizing a value to the output device, transmitting a signal indicating the RFID tag having a selected alarm value by recognizing the alarm value, to the output device, Recognize the value and transmit the road guide information according to the coordinate information to the output device,

The output device outputs the information as a voice, and receives the signal of the identification value or the alarm value and expresses the signal as a beep or a vibration. Way.
The method according to claim 1, wherein the receiving device

An antenna for receiving information stored in the RFID tag;

An operation unit that determines front, rear, left and right, and selects and recognizes road guidance information according to the coordinate information;

A storage unit for storing each sentence reserved for the first and second codes; And

Storing the information of the RFID tag for the visually impaired road guidance system, comprising: a conversion unit for converting the selected road guidance information into information stored in the storage unit and converting the sentence into an output device. And a method for transmitting and receiving the same.
The method of claim 1, wherein the receiving device is provided with a button for selecting the front, rear, left, right directions,

Recognizing the front, rear, left and right directions according to the addition or subtraction of the coordinate information, the RFID tag information storage for the visually impaired road guide system, characterized in that for transmitting the road guide information of the RFID tag for the direction of the selected button and How to send and receive it.
The method of claim 1, wherein the receiving device and the output device for storing information and transmitting and receiving the RFID tag for the visually impaired road guide system, characterized in that installed on the walking stick for the visually impaired.