WO2011068347A2

WO2011068347A2 - Braille block rfid tag for walking guidance for a visually impaired person, and method for manufacturing same

Info

Publication number: WO2011068347A2
Application number: PCT/KR2010/008529
Authority: WO
Inventors: 김성제
Original assignee: (주) 부성 리싸이클링
Priority date: 2009-12-01
Filing date: 2010-11-30
Publication date: 2011-06-09
Also published as: WO2011068347A3; KR100998263B1

Abstract

The present invention relates to a Braille block RFID tag for walking guidance for a visually impaired person, which enables an RFID reader to wirelessly sense the RFID tag mounted on a Braille block and lead the visually impaired person to the destination when the visually impaired person walks along the Braille block. The present invention also relates to a method for manufacturing the Braille block RFID tag. According to the present invention, the Braille block RFID tag for walking guidance for a visually impaired person enables the RFID reader to sense the RFID tag even when a cane strays from the Braille block by a distance of 5 cm or more while the visually impaired person swings the cane in the upward, downward, left or right directions and the cane is not close to the Braille block, wherein the Braille block RFID tag comprises: a PCB (15), which has a thickness of 0.32 mm and which has an upper surface on which an antenna (12) and an RFID chip (14) are mounted; transparent PVC films (16a, 16b) thermally bonded to the upper and lower surfaces of the PCB (15), respectively, up to a thickness of 0.05 to 0.1 mm; white PVC films (17a, 17b) thermally bonded to the respective transparent PVC films (16a, 16b) up to a thickness of 0.01 to 0.2 mm; transparent PVC films (18a, 18b) thermally bonded to the respective white PVC films (17a, 17b) up to a thickness of 0.01 to 0.2 mm; said antenna (12), in which the starting points of two strands of coils are connected together, and the two strands start from the respective starting points, pass through the center of the PCB (15), and are wound outwardly or inwardly along the periphery of the PCB (15) by three turns (six lines) in parallel, and the ends of the two strands are connected together so as to form a loop-shaped coil on the PCB (15); and said RFID chip (14), which is electrically connected to the starting point and to the ending point of the antenna (12), and mounted on the PCB (15) such that the RFID chip (14) overlaps with the antenna (12). The Braille block RFID tag of the present invention is advantageous in that the RFID reader for a visually impaired person senses the RFID tag and leads the visually impaired person to the destination if the distance between the cane and the RFID tag does not exceed 15 cm, even when the cane strays from the Braille block by a distance of 5 cm or more while the visually impaired person swings the cane in the upward, downward, left or right directions and the cane is not close to the Braille block.

Description

Braille Block RDF Tag for Visually Impaired Pedestrian Guide and Manufacturing Method Thereof

The present invention relates to a braille block RF tag for the visually impaired pedestrian guidance, more specifically, when the visually impaired walk along the braille block, wirelessly detects the RE tag mounted on the braille block in the RFID reader to guide the walking direction The present invention relates to a braille block RF tag for visually impaired walking guidance and a method of manufacturing the same.

In general, in order to move the visually impaired by moving the sense of protrusion of the guide block on the floor with a stick to recognize the location and risk of movement. However, this method does not know the exact current location and the direction to go, and the first place to go to get the location information from the people around. Therefore, the first place you go needs someone to guide you.

At present, induction blocks are used in the middle of sidewalk blocks to require attention or guide to specific locations, such as crossings, subway entrances and exits, and stairs.

However, such a conventional induction block is to use a material different from the general floor material such as rubber, stainless steel, plastic, magnetic material, etc., and visually impaired people to detect the protruding part with a cane or foot. In addition, the visually impaired person can be detected by sound or sensation while tapping or dragging his wand.

Visually impaired people can sense sensationally only by the shape of the protrusion on the block that is shaken up and down with a cane. As such, the types of messages transmitted to the visually impaired are largely classified into three types. There is a problem that the speed of detection is slow and inconvenient and inaccurate in deriving to a desired place and safe guidance only by these messages during walking.

The provision of information for the visually impaired is possible only through the transmission of auditory information such as voice or sound and the use of tactile sense such as braille. Acoustic information delivery is faster and more accurate than tactile information delivery. Many methods for receiving the location information that the visually impaired can obtain themselves have been studied.

On the other hand, as a prior art for the pedestrian guide mechanism for the visually impaired, Korean Utility Model Registration No. 20-0203332 is equipped with an ultrasonic generator and a vibrator on the wand to detect surrounding obstacles by ultrasonic waves, and to drive the vibrator when detecting the obstacles. Guidance mechanisms have been proposed to announce that there is. However, the guide device using the ultrasonic wave can detect and inform the obstacle in the proximity position, but there is a problem in that there are many people who can not distinguish between the moving person and the fixed obstacle, rather it interferes and causes confusion.

In order to solve this problem, the RFID tag is mounted on the braille block and the RFID tag can be read in a non-contact manner to provide voice guidance, but an infrared reflector is formed in the induction furnace to detect the reflection induction furnace regardless of contact or non-contact with the wand. A technology for adding a function capable of providing a warning and providing guidance information and a danger warning located in a progress direction is disclosed in Korean Patent Laid-Open Publication No. 10-2009-0020857.

In the conventional pedestrian guide system for the blind, disclosed in Korean Patent Laid-Open Publication No. 10-2009-0020857, an RFID tag is mounted on a braille block installed on a pedestrian path and an RFID reader is mounted on a lower part of a cane for the disabled. It emits a signal and reads information from an adjacent RFID tag to guide walking.

In the conventional walking guide system for the visually impaired, the antenna of the RFID tag mounted on the braille block has a structure in which four wires are wound in parallel on the outer periphery of 100 × 100 mm in length on a polyester film (PET film) as shown in FIG. To have. However, the visually impaired person moves along the braille block while swinging the wand up, down, left, and right. At this time, in the structure of the antenna of this RFID tag of the visually impaired pedestrian guide system, when the visually impaired person walks and swings the visually impaired cane up, down, left and right, and does not move within 5cm or less, the RFID mounted on the visually impaired cane There was a problem that can not guide the walk of the visually impaired because the reader does not detect the RFID tag.

In addition, when the antenna of the RFIF tag is placed in a state where a metal plate or a glass plate is laid on the floor, a radio signal radiated from the RFID reader is passed to the glass plate or a metal plate, thereby preventing the RFID tag from being recognized by the RFID reader.

An object of the present invention is to visually impair the walking guide of the visually impaired by detecting the RFID tag in the RFID reader even if the visually impaired swinging the cane up, down, left, and right to more than 5cm or close to the braille block To provide a braille block RF tag for and a method of manufacturing the same.

Another object of the present invention is to detect the RFID tag in the RFID reader even if the antenna tag of the RFID tag mounted on the braille block has a size of 200mm × 200mm and swings to the upper, lower, left, and right without moving closer to the braille block by more than 5 cm. The present invention provides a braille block RF tag and a method of manufacturing the same for pedestrians with visual impairments.

Braille block RF tag for visually impaired walking guidance according to an embodiment of the present invention for achieving the above object,

It has a thickness of 0.32mm, the antenna substrate and the RFID chip 14 is mounted on the upper surface of the PCB substrate 15, the PCB substrate 15 is heat so as to have a thickness of 0.05 ~ 0.1mm on the upper surface and the lower surface The

transparent PVC films

16a and 16b to be fused, the

white PVC films

17a and 17b to be respectively heat-sealed to have a thickness of 0.01 to 0.2mm on the

transparent PVC films

16a and 16b, and the white PVC film ( After connecting the starting point of the two-stranded

transparent PVC films

18a and 18b, which are respectively heat-sealed to have a thickness of 0.01 to 0.2 mm on the 17a and 17b, the two-coils are passed through the center from the starting point. An antenna 12 which mounts a loop-shaped coil on the PCB substrate 15 in which three turns (6 lines) are wound in parallel to the outer circumference in an outer direction or an inner direction and connects the end points of the two strands of coils. And the PCB substrate 15 to be electrically connected to start and end points of the antenna 12 and overlap with the antenna 12, respectively. It is characterized by consisting of an RFID chip 14 mounted on the.

Braille block RF tag for visually impaired walking guidance according to another embodiment of the present invention for achieving the above object,

transparent PVC films

16a and 16b to be fused, the

white PVC films

transparent PVC films

16a and 16b, and the white PVC film ( 17a, 17b on the transparent PVC film (18a, 18b) that is respectively heat-sealed to have a thickness of 0.01 ~ 0.2mm, and the start point of the two strands of coil is connected to the outer peripheral portion from the start point of the two strands of coil The main antenna 12a for mounting a coil of a loop type on the PCB substrate 15 in which three turns (6 lines) are wound in parallel in a direction or an inward direction and connecting the end points of the two strands of coils; Coils formed on the PCB substrate 15 in the inner space where the coil of the loop shape of the main antenna 12a is not disposed. A plurality of booster antennas 13 mounted to induce the high frequency power signal radiated from the cane's antenna to the main antenna 12a, and electrically connected to start and end points of the antenna 12a, respectively; And an RFID chip 14 mounted on the PCB 15 so as to overlap with the PCB 15.

Method of manufacturing a braille block RF tag for visually impaired walking guidance according to an embodiment of the present invention for achieving the above object,

Mounting an antenna 12 and an RFID chip 14 on a PCB substrate 15 having a thickness of 0.32 mm, and an upper portion of the PCB substrate 15 on which the antenna 12 and the RFID chip 14 are mounted; Put the transparent PVC film (16a, 16b) having a thickness of 0.05 ~ 0.1mm on the surface and the lower surface, respectively, and heated for 20-30 minutes at 135 ~ 150 ℃ using a heat welding machine to the upper and lower surfaces of the PVC film (15) Fusing the

transparent PVC films

16a and 16b to the white PVC film having a thickness of 0.1 to 0.2 mm on the

transparent PVC films

16a and 16b fused to the upper and lower surfaces of the PVC film 15. (17a, 17b) and put in a heat fusion splicer, respectively, the step of fusing the white PVC film (17a, 17b) by heating for 20 to 30 minutes at 135 ~ 150 ℃, the fused white PVC film (17a, 17b) Cover each transparent PVC film (18a, 18b) having a thickness of 0.05 ~ 0.1mm on the top and heated for 20-30 minutes at 135 ~ 150 ℃ using a heat fusion machine when the transparent PVC film (18a, 18b) is fused It is characterized by made of an step.

The antenna 12

After connecting the starting points of the two strands of coils, three turns (6 lines) are wound in parallel to the outer circumferential portion or the inward direction on the PVC substrate 10 via the center from the starting point of the two strands of coils. It is characterized in that for mounting the coil of the loop form connecting the end points of the two strands of the coil.

Method for manufacturing a braille block RF tag for visually impaired walking guidance according to another embodiment of the present invention for achieving the above object,

Mounting the main antenna 12a and the plurality of booster antennas 13 and the RFID chip 14 on the PCB substrate 15 having a thickness of 0.32 mm, and the antenna 12a and the plurality of booster antennas 13 ) And the transparent PVC film (16a, 16b) having a thickness of 0.05 ~ 0.1mm on the upper surface and the lower surface of the PCB board 15 equipped with the RFID chip 14 and 135 ~ 150 ℃ using a heat sealer 20 to 30 minutes by heating the transparent PVC film (16a, 16b) to the upper surface and the lower surface of the PVC film 15 and the transparent PVC film fused to the upper and lower surfaces of the PVC film ( Put

white PVC films

17a and 17b having a thickness of 0.1 to 0.2 mm on 16a and 16b, respectively, put them in a heat fusion machine, and heat them at 135 to 150 ° C. for 20 to 30 minutes to produce

white PVC films

17a and 17b. The step of fusion, and put the transparent PVC film (18a, 18b) having a thickness of 0.05 ~ 0.1mm on the fused white PVC film (17a, 17b), respectively, 135 ~ 150 ℃ using a heat fusion machine Heated for 20 ~ 30 minutes characterized by made of an step of fusing a transparent PVC film (18a, 18b).

The antenna 12a connects the start points of the two strands of coils, and then turns three turns (6 lines in the outer or inward direction to the outer circumferential portion via the center from the start point of the two strands of coils on the PVC substrate 10. ) Is wound in parallel and is equipped with a loop-shaped coil connecting the end points of the two strands of coils,

The plurality of booster antennas 13 are characterized in that each of the spiral coils is mounted in an inner space in which the loop coils of the antenna 12a are not disposed.

According to the present invention, even if the visually impaired person swings the cane up, down, left and right, the distance between the cane and the RFID tag does not approach the braille block by more than 5cm, the RFID tag for the visually impaired is detected by the RFID reader for the visually impaired. There is an advantage that can guide the walk of the disabled.

In addition, the size of the antenna of the RFID tag mounted on the braille block is 200mm × 200mm, and swings up, down, left, and right to move more than 5cm and close the braille block without the proximity to the braille block. There is an advantage that can be detected.

1 is an antenna of an RFID tag mounted on a conventional braille block

2 is an explanatory diagram of a reflection induction furnace and an induction furnace embedded with an RFID tag according to the present invention;

Figure 3 is a schematic view of the cane for detecting induction furnace according to the present invention

4 is a block diagram of an induction furnace detecting apparatus according to the present invention

5 is a block diagram of a RFID tag detection voice guidance device according to the present invention

6 is a structural diagram of an RFID tag according to an embodiment of the present invention.

7 is a cross-sectional structural view of the PVC substrate 10 of FIG.

8 is an antenna structure diagram of an RFID tag according to another embodiment of the present invention

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings in which: FIG. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth. It should be noted that the embodiments of the present invention described below are merely for explaining the spirit of the present invention to those skilled in the art, and detailed descriptions of well-known functions and configurations in the art that may unnecessarily obscure the gist of the present invention are provided. Note that it is omitted.

2 is an explanatory diagram of an induction furnace embedded with a reflection induction furnace and an RFID tag according to the present invention;

3 is a schematic view of the cane for detecting induction furnace according to the present invention;

4 is a block diagram of an induction furnace detecting apparatus according to the present invention,

5 is a block diagram of an RFID tag detection voice guidance apparatus according to the present invention.

The present invention, the induction furnace 20 is applied to the bead glass for infrared reflection is installed on the pedestrian path, and embedded in each arbitrary position on the induction path 20 to store the guide information for each position, and contactless communication RFID tag 110 is installed to be accessible by; The RFID tag antenna 210 is installed on the lower end of the cane 200, and the infrared sensor unit is installed below the grip portion 201 of the cane 200 to irradiate infrared rays and infrared rays reflected from the induction furnace 20 Receiving and driving the vibrator 227 to drive the vibrator 227, the cane 200 and the power and communication connection cable to the jack, and connected to the antenna 210 by the wireless tag to receive the RFID tag It is configured as a portable guide device 300 for reading the information from the 110 and outputting a voice guidance message by the information of the RFID tag.

2, the present invention constitutes a reflection induction path 20 on a walking path for the visually impaired. The reflection induction furnace 20 applies bead glass so that infrared rays are clearly reflected from the general road surface, so that the visually impaired person can recognize the induction furnace.

In addition, in the guideway 20 installed on the pedestrian path as described above, the visually impaired person is guided by installing the RFID tag 110 embedded in the guideway 20 for each position where it is necessary to deliver a guide message to the visually impaired person. While moving along the furnace 20 is configured to receive voice information from the guide information from the RFID tag.

Figure 3 is a schematic diagram of the cane for the visually impaired according to the present invention.

An infrared sensor part including an infrared LED 225 and a light receiving diode 226 installed on the grip part 201 of the cane 200 is installed. The position of the infrared LED 225 is effective at the bottom of the grip portion 201, which does not interfere with the maintenance of the cane without being affected by reflection from the axis of the cane 200. The infrared rays from the infrared LED 225 directed to the road surface and irradiated to determine the width and the like of the accurate reflection induction furnace 20 need to be as narrow as possible and preferably have a diameter of several tens of centimeters at a position about 1 m away.

Therefore, in the reflection induction path 20, the vibrator of the cane 200 is retrospectively reflected in the incident direction according to the spherical bead glass and received by the light receiving diode 226 regardless of contact or non-contact. The vibrator 227 is driven to recognize whether the induction furnace has been separated.

Figure 4 is a configuration diagram of the induction furnace detection apparatus of the guide device for the blind according to the present invention.

The present invention is to install an infrared LED 225 and a light receiving diode 226 as an infrared sensor unit, to control the infrared transmission frequency of the infrared LED 225 and to detect the light receiving state of the light receiving diode 226. The control unit 224 to communicate with the portable guide device 300, and the oscillator 227 is installed in the grip portion 201 of the cane 200, the drive is controlled according to the light receiving state of the light receiving diode 226. do.

In addition, the present invention, in addition to the above configuration, the button 221 for controlling the operation of the user, the buzzer 222 for notifying the infrared operation state and outputting the alarm sound, and the visually impaired by the user's selection It is configured to further include a blinking LED 223 flashing control to inform. The buzzer 222 may output a short period of sound at a constant period irrespective of the user's manipulation to inform whether the infrared sensor unit is operating normally.

Here, the induction furnace detecting device 210 may be configured to supply power by attaching a separate battery, but is configured to receive operating power from the portable guide device 300 of the present invention. In addition, although not shown in the drawing, one or more buttons 221 may be installed, and the buzzer or the function of pressing the buzzer 222 only, the function of driving only the blinking LED 223, etc. It can be configured to drive each blinking LED.

In the case of configuring only one button, the control unit 224 analyzes the button press signal, and when it is pressed for a predetermined time or longer, operates the blinking LED for a predetermined time, and when it is pressed by a short touch type, causes one button to sound in a short cycle. Only the buzzer and the flashing LED can be distinguished and operated. Infrared operation is equipped with a separate on / off switch can be configured to turn on the entire power only when in use, as shown in the drawing without the on / off switch and the portable guide device 300 is automatically powered when the jack is connected Infrared operation can also be configured.

5 is a block diagram of a portable guide device for the blind according to the present invention. As shown therein, a plurality of RFID tags 110 for storing and providing guide information for the visually impaired; An antenna 210 installed on the cane 200 for the visually impaired to access the RFID tag 110 in a contactless wireless transmission and reception method; A portable guide device 300 that reads the RFID tag 110 information through the antenna 210 and provides voice guidance based on the information; It consists of.

The portable guide device (300) includes: an RFID reader (310) for reading information from an RFID tag (110) in proximity by radiating a radio signal through the antenna (210); A signal processor 320 which decodes the RFID tag 110 information read from the RFID reader 310 to generate a voice guide signal according to the corresponding information and includes an earphone output port 321 for voice output; A charging power unit 330 for charging and supplying external power connected to the external power port 321 to a charging battery to generate and supply operating power of each part of the portable guide device; Controls the operation of each part of the portable guide device to control the voice guidance output by the information of the RFID tag 110, and to establish a communication port 341 for communicating with an external device.

Compared with the control and communication unit 340 is configured.

According to the present invention configured as described above, the taxiway 20 is installed on the pedestrian path, and the RFID tag 110 is embedded in the taxiway 20 to provide a basic facility for guiding the visually impaired. In addition, the cane 200 for the visually impaired is equipped with an induction furnace sensor 220 for detecting the induction furnace 20 by installing an infrared sensor and a vibrator as shown in FIGS. An antenna 210 for attaching the tag 110 without contact is attached. Then, the portable guide device 300 is connected to the cane 200 and the jack to allow power supply and information transmission and reception with the RFID tag.

When the user (visually handicapped) connects the portable guide device 300 to the cane 200 to operate the portable guide device 300 (not shown in the drawing, but turns on the operation switch) in the prepared state, the portable device Power is supplied from the guide device 300 to the induction furnace sensor 220, and the control unit 245 of the induction furnace sensor 220 controls the infrared LED 225 at a constant frequency to emit infrared rays.

Infrared rays emitted from the infrared LED 225 are radiated to the induction furnace 20 and the general road surface, and the infrared rays reflected by the light receiving diode 226 are received. In this case, the intensity of the received infrared signal is weak when reflected only on the general road surface, and the infrared signal reflected by the induction furnace 20 is greater than that on the general road surface. Accordingly, when an infrared signal having a predetermined light receiving amount is received, the induction furnace 20 is recognized, and the vibrator 227 is driven at a predetermined light receiving amount or more. It is not necessary to continuously drive the vibrator 227, and it may be notified that the driving of the vibrator 227 is performed once every short time interval (for example, several seconds).

In addition, the controller 224 detects whether the induction furnace 20 is out of the induction furnace 20 by judging whether the infrared signal received from the light receiving diode 226 is compared with a predetermined reference value, and when the induction furnace 20 is departed for a predetermined time or more. The departure information is transmitted to the portable guide device 300 by induction, and the control and communication unit 340 of the portable guide device 300 receives the departure information from the induction path through the signal processor 320 to the 'induced departure from the voice message. 'Can be announced.

As described above, it is possible to move along the induction path 20 by using the infrared sensor function of the cane 200, and when the RFID tag 110 is buried while moving along the induction path 20, the antenna ( Induced electromotive force is induced in the RFID tag 110 by the radio signal radiated through the 210 to generate internal power for the tag, and also to read information recorded in the RFID tag 110 through contactless wireless transmission and reception.

In the present invention is configured to be connected / disconnected by a jack as a wired connection, the portable guide device 300 is provided with a charging power supply unit 330 using a charging battery power supply to supply the operating power.

The portable guide device 300 includes a button or a switch for a user's operation to allow the control and communication unit 340 to input an operation or to turn on / off the power output of the charging power supply unit 330. It is not shown in the drawings and will not be described.

The portable guide device 300 is used in connection with the antenna 210 installed in the cane 200 and detects the RFID tag 110 when moving while searching for a walking path using the cane 200. At this time, the control and communication unit 340 of the portable guide device 300 to control the RFID reader 310 to radiate a radio signal for reading the information of the RFID tag 110, to the radio signal radiated from the antenna 210 On the basis of reading the RFID tag 110 information.

The information of the RFID tag 110 is decoded by the signal processor 320, and the signal processor 320 generates a corresponding voice signal based on the decoded information and outputs the corresponding voice signal to the earphone.

The information of the RFID tag 110 stores the appropriate guide information for each location, for example, 'walking left', 'crosswalk', 'walking right', 'go forward', etc., Obstacles, location names, traffic lights, dangerous goods, surrounding conditions, etc. can be applied in various ways. This information is then stored in the tags through the user interface and uses a standardized code scheme to increase compatibility.

In this way, the information of the tag is read and the information is analyzed and then converted into voice data, and the information is visually informed to the ears of the visually impaired through the terminal and the earphone.

Therefore, the present invention can sense the taxiway through the wand to move along the taxiway, and can receive the guidance information from the RFID tag or wireless transceiver installed on the taxiway to receive voice guidance to go in the wrong direction or RFID It is not difficult to find a tag, can provide a variety of information, not only applied to the visually impaired cane, but also available for everything, such as cars, bicycles, strollers, wheelchairs, information communication that can be easily used anywhere, anytime It can be used as a personal portable terminal of the system.

As described above, the cane can be sensed through the cane 200 and move along the induction furnace 20, and can receive guidance by voice by obtaining guide information from an RFID tag or a wireless transceiver installed in the tag block 100 on the induction furnace. There is no difficulty in going in the wrong direction or finding an RFID tag, but when the visually impaired moves the cane 200 up, down, left and right along the taxiway 20, the height of lifting the cane 200 is 5Cm high. In this case, the RFID reader 310 mounted on the portable guide device 300 for the visually impaired may not detect the RFID tag 110 and thus the walking guide of the visually impaired cannot be guided so that the cane 200 is more than 5 cm from the ground. RFID tag that can detect the RFID tag 110 even if lifted was required. Therefore, the present invention implements an RFID tag that can detect the RFID tag 110 even when the cane 200 is lifted more than 5 cm from the ground because it cannot guide walking of the visually impaired person. The RFID tag will be described in detail.

A polyvinyl chloride substrate (hereinafter referred to as PVC substrate) 10,

After connecting the start points of the two strands of coils, the two strands of coils are wound in parallel to the outer circumferential portion of the two strands (6 lines) in parallel to the outer circumferential portion from the starting point and end points of the coils of the two strands. An antenna 12 for mounting a coil in a loop shape to connect the circuit board 15 to the PCB substrate 15;

It consists of an RFID (Radio Frequency Identification) chip (14) mounted on the PCB board 15 so as to be electrically connected to the start and end points of the antenna 12, respectively, and overlap with the antenna 12.

7 is a cross-sectional view of the PVC substrate 10 of FIG.

A PCB (Print Circuit Board) board 15 having a thickness of 0.32 mm and having an antenna and an RFID chip 14 mounted thereon;

And the

transparent PVC film

16a, 16b heat-sealed to have a thickness of 0.05 ~ 0.1mm in the upper and lower portions on the PCB substrate 15,

White PVC films (17a, 17b) and each heat-sealed to have a thickness of 0.01 ~ 0.2mm on the transparent PVC film (16a, 16b),

The

white PVC films

17a and 17b are composed of

transparent PVC films

18a and 18b which are respectively heat-sealed to have a thickness of 0.01 to 0.2 mm.

Referring to the process of manufacturing the PVC substrate 10, the antenna 12 and the RFID chip 14 is mounted on the PCB substrate 15 having a thickness of 0.32mm, 0.05 ~ 0.1 on the upper and lower surfaces Cover each of the

transparent PVC films

16a and 16b having a thickness of mm, and heat them at 135 to 150 ° C. for 20 to 30 minutes using a heat fusion machine to form the transparent PVC films 16a and 16 on the upper and lower surfaces of the PCB substrate 15. 16b) is fused. Put the

white PVC films

17a and 17b having a thickness of 0.1 to 0.2mm on the

transparent PVC films

16a and 16b fused to the upper and lower surfaces of the PCB substrate 15, respectively, and put them in a thermal fusion apparatus at 135 to 150 ° C. 20 to 30 minutes by heating the white PVC film (17a, 17b) to be fused. Put transparent PVC films (18a, 18b) having a thickness of 0.05 ~ 0.1mm on the fused white PVC film (17a, 17b), respectively, and heat for 20 to 30 minutes at 135 ~ 150 ℃ using a heat fusion machine transparent PVC The

films

18a and 18b are fused together.

The thickness of the

transparent PVC films

16a and 16b is 0.05 mm or less, the thickness of the

white PVC films

17a and 17b is 0.1 mm or less, and the thickness of the

transparent PVC films

18a and 18b is 0.05 mm or less. In this case, the characteristic of the antenna 12 is reduced and the sensing distance is shortened, so that the high frequency power radiated from the cane 200 is not received by the antenna 12 of the RFIF tag 110 at a distance of 15 cm.

The thickness of the

transparent PVC films

16a and 16b is 0.1 mm or more, the thickness of the

white PVC films

17a and 17b is 0.2 mm or more, and the thickness of the

transparent PVC films

18a and 18b is 0.1 mm or more. In this case, the thickness of the RFID tag 110 becomes thick, which causes a problem of thinning the thickness of the sidewalk block.

When the fusion temperature is lower than 135 ° C. when the

transparent PVC films

16a and 16b, the

white PVC films

17a and 17b, and the

transparent PVC films

18a and 18b are thermally fused, the film does not melt and the fusion temperature. When the temperature is 150 ° C. or higher, there is a problem in that the film melts and a poor fusion occurs.

After connecting the start points of the two strands of coils on the PVC substrate 10 manufactured as described above, the outer periphery or the inward direction of the outer circumferential portion of the coils of the two strands on the PVC substrate 10 is passed through the center portion. The turn (6 lines) is wound in parallel and connected so that the end points of the two strands of coils are electrically connected to each other, thereby installing an antenna 12 having a loop-shaped coil. Then, the PVC substrate 10 prevents the reflection loss of the antenna 12, thereby improving the characteristics of the resonance frequency, the antenna impedance, and the radiation efficiency, by the radio signal radiated through the antenna 210 installed in the cane 200. Induced electromotive force is induced in the antenna 12 of the RFID tag 110 to generate an internal power supply for the tag, and also to read information recorded in the RFID tag 110 by contactless wireless transmission and reception. At this time, even if the cane 200 swings up, down, left and right while moving away from 5 cm, the RFID tag 310 is mounted on the RFID reader 310 mounted on the portable guide device 300 only as long as the cane 200 is within a range of 15 cm. It can detect the walking guide of the visually impaired.

The RFID tag of the present invention is configured as shown in FIG. 6, but the other RFID tag of the present invention may be configured as shown in FIG. 8.

8 is an antenna structure diagram of an RFID tag according to another embodiment of the present invention.

Referring to FIG. 8, after connecting the starting points of the two strands of coils, three turns (6 lines) are wound in parallel to the outer circumferential portion or the inward direction from the starting point of the two strands of coils, and the coils of the two strands are wound. A main antenna 12a for mounting a loop-shaped coil connected to the end points of the PCB on the PCB 15;

The spiral coils are mounted on the PCB board 15 in the inner space where the loop coils of the main antenna 12a are not disposed, and the high frequency power signal radiated from the antenna of the cane is applied to the main antenna 12a. It consists of the some booster antenna 13 made to organically.

The high frequency power signal emitted from the antenna 210 of the cane 200 is radiated to the main antenna 12a and the booster antenna 13 when the visually impaired person swings the cane 200 up, down, left and right. At this time, the high-frequency power signal radiated to the booster antenna 13 is induced to the main antenna 12a to swing the cane 200 up, down, left and right, even if it is out of 5 cm and the cane 200 is within 15 cm. Once it detects the RFID tag 110 in the RFID reader 310 mounted on the portable guide device 300 can guide the walking of the visually impaired.

Although the present invention has been described in detail only with respect to the specific examples described, it will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and such variations and modifications are within the scope of the appended claims.

Claims

In the braille block RF tag for pedestrian guidance for the visually impaired,

A PCB substrate 15 having a thickness of 0.32 mm and having an antenna and an RFID chip 14 mounted thereon;

Transparent PVC films 16a and 16b heat-sealed to have a thickness of 0.05 to 0.1 mm on the upper and lower surfaces of the PCB substrate 15;

White PVC films (17a, 17b) and each heat-sealed to have a thickness of 0.01 ~ 0.2mm on the transparent PVC film (16a, 16b),

Transparent PVC films (18a, 18b) and each heat-sealed to have a thickness of 0.01 ~ 0.2mm on the white PVC film (17a, 17b) and

After connecting the start points of the two strands of coils, the two strands of coils are wound in parallel to the outer circumferential portion of the two strands (6 lines) in parallel to the outer circumferential portion from the starting point and end points of the coils of the two strands. An antenna 12 for mounting a loop-shaped coil for connecting the circuit board to the PCB 15;

Braille for visually impaired walking guidance, characterized in that it is composed of an RFID chip 14 is electrically connected to the start and end points of the antenna 12 and mounted on the PCB board 15 so as to overlap with the antenna 12, respectively. Block RF Tag.
In the braille block RF tag for pedestrians visually impaired,

A PCB substrate 15 having a thickness of 0.32 mm and having an antenna 12 and an RFID chip 14 mounted on an upper surface thereof;

Transparent PVC films 16a and 16b heat-sealed to have a thickness of 0.05 to 0.1 mm on the upper and lower surfaces of the PCB substrate 15;

White PVC films (17a, 17b) and each heat-sealed to have a thickness of 0.01 ~ 0.2mm on the transparent PVC film (16a, 16b),

Transparent PVC films (18a, 18b) and each heat-sealed to have a thickness of 0.01 ~ 0.2mm on the white PVC film (17a, 17b),

A loop in which three turns (6 lines) are wound in parallel in the outward or inward direction from the start point of the two-strand coils to the outer circumference from the start point of the two-strand coils, and the end points of the two-strand coils are connected. A main antenna 12a for mounting a coil of a shape on the PCB substrate 15;

The spiral coils are mounted on the PCB board 15 in the inner space where the loop coils of the main antenna 12a are not disposed, and the high frequency power signal radiated from the antenna of the cane is applied to the main antenna 12a. A plurality of booster antennas 13 to be organically

The visually impaired walking guide, characterized in that consisting of the RFID chip 14 is mounted on the PCB board 15 so as to be electrically connected to the start and end points of the main antenna (12a) and overlap with the antenna 12, respectively. Braille block RF tag for.
In the method of manufacturing a braille block RF tag for pedestrians visually impaired,

Mounting the antenna 12 and the RFID chip 14 on the PCB substrate 15 having a thickness of 0.32 mm,

Put the transparent PVC film (16a, 16b) having a thickness of 0.05 ~ 0.1mm on the upper surface and the lower surface of the PCB board 15 on which the antenna 12 and the RFID chip 14 are mounted, and using a heat sealer. Fusing the transparent PVC films 16a and 16b to the upper and lower surfaces of the PVC film 15 by heating at 135 to 150 ° C. for 20 to 30 minutes;

Put the white PVC film (17a, 17b) having a thickness of 0.1 ~ 0.2mm on the transparent PVC film (16a, 16b) fused to the upper surface and the lower surface of the PVC film (15) and put into a heat fusion machine 135 ~ Fusing the white PVC films 17a and 17b by heating at 150 ° C. for 20 to 30 minutes;

Put transparent PVC films 18a and 18b having a thickness of 0.05 to 0.1 mm on the fused white PVC films 17a and 17b, respectively, and heat them at 135 to 150 ° C. for 20 to 30 minutes using a heat welding machine. Braille block RF tag manufacturing method for the visually impaired walking guide, characterized in that the step consisting of fusion of the PVC film (18a, 18b).
The antenna of claim 3, wherein the antenna 12

After connecting the starting points of the two strands of coils, three turns (6 lines) are wound in parallel to the outer circumferential portion or the inward direction on the PVC substrate 10 via the center from the starting point of the two strands of coils. A method of manufacturing a braille block RF tag for visually impaired walking guidance, comprising: mounting a coil of a loop type connecting the end points of two coils.
In the method of manufacturing a braille block RF tag for pedestrians visually impaired,

Mounting the main antenna 12a and the plurality of booster antennas 13 and the RFID chip 14 on the PCB substrate 15 having a thickness of 0.32 mm;

Transparent PVC films 16a and 16b having a thickness of 0.05 to 0.1 mm on the upper and lower surfaces of the main substrate 12a and the plurality of booster antennas 13 and the PCB 15 on which the RFID chip 14 is mounted. And covering each of the transparent PVC films 16a and 16b on the upper and lower surfaces of the PVC film 15 by heating each at a temperature of 135 to 150 ° C. for 20 to 30 minutes using a heat welding machine.

Put the white PVC film (17a, 17b) having a thickness of 0.1 ~ 0.2mm on the transparent PVC film (16a, 16b) fused to the upper surface and the lower surface of the PVC film (15) and put into a heat fusion machine 135 ~ 150 Heating the film to 20 ° C. for 30 minutes to fuse the white PVC films 17a and 17b,

Put transparent PVC films (18a, 18b) having a thickness of 0.05 ~ 0.1mm on the fused white PVC film (17a, 17b), respectively, and heat for 20 to 30 minutes at 135 ~ 150 ℃ using a heat fusion machine transparent PVC Method for producing a braille block RF tag for visually impaired walking guidance, characterized in that the film (18a, 18b) is made of a fusion step.
The method according to claim 5,

The main antenna 12a is connected to the starting point of the two strands of coils, and then, on the PVC substrate 10, three turns (6) in the outer direction or the inward direction on the outer circumferential portion via the center portion from the starting point of the two strands of coils. Line) is wound in parallel and is equipped with a loop-shaped coil connecting the end points of the two strands of coils,

A plurality of booster antennas (13) is a method of manufacturing a braille block RF tag for visually impaired walking guidance, characterized in that each of the spiral coil is mounted in the inner space where the loop-shaped coil of the main antenna (12a) is not disposed.