KR100751819B1 - The guide system for the blind - Google Patents

Abstract

The present invention relates to a road guide system for the visually impaired, and more specifically, to inform the location information of the visually impaired by the RF communication between the road guide cover block and the wireless sensing wand, the direction of the destination and the guidance message by voice. It is about a navigation system. According to the configuration of the present invention, the coil antenna of the road guide marker block receives the wireless power wave applied from the outside, generates induction electromotive force, and uses it as the power required by itself. A road guide marker block for retransmitting to the outside through an antenna; And applying a predetermined radio wave to the road guide cover block to induce activation of the road guide cover block, receiving location information transmitted from the road guide cover block, and performing a predetermined process to guide the road through the voice output means. A wireless sensing wand for outputting voice information; Characterized in that, by providing the information on the progress direction and information of the specific location to the visually impaired pedestrian by voice informs the current accurate location information, the direction of the destination and guidance message, can safely walk to the destination Provide effect.

Route guidance, location information, direction information, wireless sensing stick, route guide block, RF communication

Description

Direction system {THE GUIDE SYSTEM FOR THE BLIND}

1 is a view of the installation of a special walkway block for the blind according to the prior art

2 is a block diagram of a road guidance system according to the present invention

Figure 3 is a block diagram of a road guidance system according to the present invention

4 is a flow chart of a road guidance system according to the present invention

Figure 5 is a first embodiment applying the road guidance system according to the invention to the subway platform

Figure 6 is a second embodiment of the road guidance system according to the present invention applied to the corner

FIG. 7 is a third exemplary embodiment in which the road guidance system according to the present invention is applied to a crossroad of an underpass.

8 is a fourth embodiment in which the road guidance system according to the present invention is applied to a railroad crossing.

* Explanation of symbols for the main parts of the drawings

100 : wireless sensor wand

110 antenna portion 120 decoder

130: micom 140: voice synthesis unit

150: sound output means 160: power supply means

170: power switch 180: vibration generating means

200 : road guide sign block

210: coil antenna 230: IC chip

231 control unit 233 memory unit

The present invention relates to a road guide system for the visually impaired. More specifically, the road guide for informing the location information of the visually impaired, the direction suggestion and the guidance message by RF communication between the road guide cover block and the wireless sensing wand. It's about the system.

Conventionally, a number of applications for the road guidance system for the visually impaired other than the Republic of Korea Utility Model Registration No. 20-0248371 "blind guided walkway block".

The design is as shown in Figure 1, the cover plate 20 is formed of a synthetic resin to cover the surface of the cement sidewalk block 10 is formed of a synthetic resin to guide the convex protrusions 21 or transverse protrusions on the surface Form a dragon protrusion.

Therefore, the above invention is easier to produce than the induction protrusion on the sidewalk block itself, and is easy to install, and the cushion is better than the cement product, so that the touch of the foot is soft when used. This feature is easy to manage.

However, this is because blind people are not provided with information on the direction of travel and specific location information while walking, and they cannot secure safe walking to their destinations, and it is impossible to detect dangerous areas. In addition, in the case of crossings or platforms, since the sidewalk block is located at the end, there is a problem in that there is a risk of fatal life if one step is misplaced.

Accordingly, it is an object of the present invention to provide a road guidance system for safely walking to a destination by allowing the visually impaired pedestrian to easily hear the current location information, a direction indication of the destination, and a guidance message.

Still another object of the present invention is to provide a road guidance system for guiding a safety zone by providing a danger guidance message to a pedestrian when a visually impaired pedestrian enters a danger zone.

Way guidance system according to an aspect of the present invention for achieving the above object,

A road guide marker block for generating an induced electromotive force by receiving a wireless power wave applied from the outside through the coil antenna, and reading the position-related information previously stored in the memory according to the operation and resending it to the outside through the coil antenna; And by applying a predetermined radio wave to the road guidance beacon block, to induce the activation of the road guide beacon block and receiving the location information transmitted from the road guide beacon block through the predetermined process to guide the way through the voice output means A wireless sensing wand for outputting voice information; Characterized in that consists of.

In detail, the road guide marker block may include a memory unit in which position information capable of being output by being operated according to an induced electromotive force generated through the coil antenna is embedded; A built-in coil antenna installed inside the cover block to generate an induced electromotive force by receiving a predetermined wireless power wave from the wireless sensing wand; A control unit for reading out position information stored in the memory and controlling the transmission to a wireless sensing stick through a coil antenna; Characterized in that consists of.

In addition, the wireless sensing wand includes an antenna unit for transmitting a predetermined radio frequency to the coil antenna of the block to transmit the induced electromotive force and receive position information; A microcomputer that converts the position information data transmitted from the antenna unit into a digital signal, controls a decoder and a device for comparing, analyzing, and decrypting with a predetermined encryption algorithm, and outputs a control signal corresponding thereto as necessary; A voice synthesizer for converting and synthesizing the location related information into a road guide voice signal according to the control signal of the microcomputer; Voice output means for outputting a road guide voice conversion signal received from the voice synthesizer to an external sound output device; And power supply means for supplying predetermined operating power to the microcomputer. Characterized in that consists of.

In addition, the power supplied to the overall device of the wireless sensing wand is located at the handle of the wireless sensing wand or at the end of the wireless sensing wand can be externally controllable so that power can be supplied when contacting the road guide marker block. Power switch; It is characterized in that it is further included.

In addition, the vibration generating means is built in a predetermined position inside the wireless sensing wand, generating a vibration in accordance with the control signal of the microcomputer when the frequency generated from the antenna of the road guide sign block; It is characterized in that it is further included.

In addition, the transmission and reception distance between the antenna portion of the wireless sensing wand and the coil antenna of the road guide marker block is characterized in that about 10 ~ 20Cm so as not to cross the adjacent road guide marker block.

In addition, the memory is characterized in that the contactless EEPROM (Electrical Erasable Programmable Read Only Memory) to FLASH memory, which is easy to store, modify, and change location information, direction information, and guide information even when power is not provided.

In addition, the surface of the road guide sign block is characterized in that it is made of a functional material to withstand a certain temperature, contamination, waterproof, warpage, impact.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a road guidance system according to the present invention, Figure 3 is a block diagram of a road guidance system according to the present invention.

As shown in Figures 2 to 3, the road guidance system is composed of a wireless sensing wand 100 and the road guide cover block 200, the wireless sensing wand 100 is an antenna unit 110, decoder 120 ), The microcomputer 130, the voice synthesizer 140, the voice output means 150, the power supply means 160, the power switch 170, and the vibration generating means 180.

Meanwhile, the road guide marker block 200 includes a built-in coil antenna (hereinafter, referred to as a coil antenna) 210 and an IC chip 230, and the IC chip 230 includes a control unit 231 and a memory unit 233. The coil antenna 210 and the IC chip 230 may be installed inside the block to prevent damage by external temperature, humidity, and other environments.

The road guide marker block 200 receives the wireless power propagation from the wireless sensing wand 100 through the coil antenna 210 to generate induced electromotive force and uses it as its own power required for operation. Read the pre-stored location-related information has a function to send to the wireless sensing stick 100 through the coil antenna (210).

The coil antenna 210 embedded in the road guide sign block 200 generates an induced electromotive force by receiving a wireless power propagation from the wireless sensing stick 100, or wirelessly detects location-related information according to the induced electromotive force. Although it functions to send to the cane 100, in the figure of Figure 2 is provided in the form of a layered rectangular coil on the block having a rectangular shape, the shape of the coil antenna 210 corresponding to the present invention is to propagate from the outside If the arrangement for optimal transmission and reception is possible, various forms such as a circle can be used. In some cases, it is also possible to use radio wave detection sensors having the function of the coil antenna 210, which can also be said to fall within the scope of the present invention. have.

An integrated circuit (IC) chip 230 embedded in the road guide marker block 200 is an integrated circuit including a controller 231 and a memory unit 233, and location information and various road guides are provided in the memory unit 233. Information is embedded in the form of text or numeric data, and the control unit 231 has a function of reading or transmitting location information and various road guide information data stored in the memory unit 233 to the coil antenna 210. It also functions to control the transmission of the location information and the various road guide information. In detail, the information embedded in the memory unit 233 is described by way of example, and the location information includes 'Seoul City Hall Main Gate Entrance', 'Gwanghwamun Crossroad', 'Gangbuk-gu Office Crosswalk', 'Guro-dong 000-00 Address', and the like. It refers to the same Hangul complete code and numeric code data, and the road guide information refers to Hangul complete code and numeric code data such as 'There is a crosswalk in front of 30m right', 'Right side is Gwanghwamun Post Office and left side is US Embassy'.

In addition, the memory unit 233 is preferably a non-contact EEPROM that is easy to store, modify, and change various types of input data even when power is not supplied. It may be included in the scope of the invention.

The wireless sensing wand 100 applies a predetermined radio wave to the road guide cover block 200 to induce activation of the road guide cover block 200 and at the position received from the road guide cover block 200. It functions to output the road guide voice information to the voice output means 150 through a predetermined processing process, each of the parts (110 to 180) described later in the inside of the wireless sensing wand (100) to the structure of the wand It is preferable to be installed to suit, the shape of the wireless sensing wand 100 is not limited to the stick shape shown in Figure 2, that can be variously implemented in the form of a multi-stage folding type, hook type, T-shape, and the like. It would be desirable.

The antenna unit 110 of the wireless sensing wand 100 generates an induced electromotive force by applying a predetermined radio frequency to the coil antenna 210 of the road guide marker block 200, and the road guide marker block 200. ) To receive various location information in the form of wireless data. In addition, in the present invention, the antenna unit 110 is shown as a coil-type antenna is used, but is not limited thereto, and in some cases, magnetic sensing sensors having a function of a coil antenna may be used.

The decoder 120 compares, analyzes, and interprets the data received from the antenna unit 110 through a predetermined encryption algorithm to extract data only in a normal case.

The microcomputer 130 may store a plurality of signal patterns that can be detected in advance, and may receive a position-related data from the decoder 120 and then output a control signal corresponding thereto to control the entire system. do.

The voice synthesis unit 140 converts the location information signal according to the control signal input of the microcomputer 130 into a road guide voice signal or synthesizes the control signal of the microcomputer 130 into road guide voice signals. It has a function to output to the means 150.

The voice output means 150 functions to output a road guide voice signal received from the voice synthesizer 140 to the outside, and may use a voice signal and a specific sound generator, and the voice output means 150. Is preferably a sound generating device such as a buzzer, a speaker, and an earphone.

The power supply means 160 has a function of supplying a predetermined power to the microcomputer 130 or each part, may use a battery, may be installed or built into the inside or outside of the wireless sensing wand (100). However, it is preferable that the inside of the wireless sensing support is preferably not exposed to the unnecessary protrusion on the appearance.

The power switch 170 is a switch function for manually or automatically adjusting the power supply means 160, but preferably in the form of a switch having a power ON / OFF function, in some cases power It is also preferable that a switch type whose supply amount of is adjustable.

The vibration generating means 180 in principle to generate a vibration in accordance with the control signal received from the microcomputer 130, the transfer of the auxiliary function and position information of the voice output means 150 from the ambient noise Vibration generating device is provided in case of being affected, and such vibration is caution information vibration to alert attention such as branch point (eg intersection), waiting point (eg platform), and starting point (eg start of stairs). In some cases, the voice output means 150 and the vibration generating means 180 are used together to provide an optimum signal transmission effect to the user.

4 is a flowchart of a road guidance system according to the present invention. As shown, when a predetermined wireless power propagation is applied to the road guide marker block by the wireless sensor wand (S10), the road guide marker block is applied to the wireless power propagation from the antenna unit of the wireless sensor can generate the induced electromotive force ( S20).

The road guide marker block reads the location-related information stored in advance using the induced electromotive force as a necessary power (S30), and the position-related information corresponding to the induced electromotive force through a coil antenna provided inside the road guide marker block. Send to the wireless sensing stick (S40).

The wireless sensing member receiving the position related information (S50) converts the position information data in the form of an analog signal into a digital signal and compares, analyzes, and decodes a decoder to output a control signal (S60), and the position information To convert the road guidance voice signal, the synthesis (S70) process, and outputs the voice signal to the external sound output means (S80).

FIG. 5 is a first embodiment in which the road guidance system according to the present invention is applied to a subway platform. In the case of moving from the direction 'A' to 'J1', first, the visually impaired person is a walkway block of 'J _A' as a wireless sensory bag. Will be pointed out. At this time, the direction information stored in 'J _A' is heard, and the visually impaired person recognizes that there is a certain distance from the 'J _A' direction to the current point. If the visually impaired person moves further in the direction of 'J _A' and then presses 'J1' sidewalk block, he / she hears the message (eg, "It is dangerous to go further. Please step back or move to the side.") The visually impaired person can change direction and move in the 'B' or 'C' direction. In addition, after looking at the sidewalk blocks in the direction of 'J _A' , 'J _B' , and 'J _C' at the 'J1' point, the target progress direction can be reset.

6 is a second embodiment in which the road guidance system according to the present invention is applied to a corner of a street. In the case of moving from the direction 'A' to the direction 'J1', first, the sidewalk block of 'J _A' is described as a wireless sensory stick. do. At this time, the direction information stored in 'J _A' is heard, and the visually impaired person recognizes that there is a certain distance from the 'J _A' direction to the current point. In addition, if the visually impaired person moves further in the direction of 'J _{A', he /} she will see the 'J1' sidewalk block. At this time, the visually impaired person will hear a guidance message (eg, “a corner corner”). You will be able to reset the direction.

7 is a third embodiment in which the road guidance system according to the present invention is applied to a crossroad of an underpass, when going from the 'A' direction to the 'J1' direction, the first visually impaired person walks on the 'J _{A' with} the wireless sensory stick. The block is shown. At this time, the direction information stored in 'J _A' is heard, and the visually impaired person recognizes that there is a certain distance from the 'J _A' direction to the current point. The visually impaired person moves one sidewalk block and applies the 'J1' sidewalk block. At this time, the visually impaired person hears a message (eg, "intersection point") and the visually impaired person 'J _A' , ' After looking at the sidewalk blocks in the direction of J _{B '} and' J _{C '} , the target progress directions (' A ',' B ',' C 'and' D ') can be reset.

8 is a fourth embodiment in which the road guidance system according to the present invention is applied to a crosswalk, and when a visually impaired person is located at a 'J _A' or 'J _B' position, a guide message of a wireless road guide sign placed at each position ( For example, "This is Mokdong Girls' High School Crossing in front of the main entrance."), And the blind person waits for a walking signal when the direction of their walking destination is correct, and crosses after listening to the signal of a separately provided traffic light. If the crossing direction is not correct, go to the 'J1' point, look at the sidewalk block of 'J _C' or 'J _D' , listen to the direction information, and then cross the street in the desired direction ('J _A' or 'J _B' Waits for a walking signal.

While specific embodiments of the present invention have been described and illustrated above, it will be apparent that the present invention may be embodied in various modifications by those skilled in the art. Such modified embodiments should not be understood individually from the technical spirit or the prospect of the present invention, but should fall within the claims appended to the present invention.

Therefore, the present invention provides the pedestrian with information about the direction of travel and information of a specific location to inform the current location information, and has the advantage of safe walking to the destination.

In addition, when a pedestrian enters a dangerous area, there is an advantage that can guide the visually impaired pedestrians to guide the safety area.

Claims (8)

In the road guidance system for the blind, A road guide marker block for generating an induced electromotive force by receiving a wireless power wave applied from the outside through the coil antenna, and reading the position-related information previously stored in the memory according to the operation and resending it to the outside through the coil antenna; And By applying a predetermined radio wave to the road guide beacon block, inducing the activation of the road guide beacon block, receiving the location information transmitted from the road guide beacon block, and receiving a road guide voice through a voice output means through a predetermined process. A wireless sensing stick that outputs information; Consisting of, The memory is characterized in that the contactless EEPROM (Electrical Erasable Programmable Read Only Memory) or FLASH memory, which is easy to store, modify, and change location information, direction information, and guidance information even when power is not provided. The surface of the road guide sign block is a road guidance system, characterized in that made of a functional material to withstand a certain temperature, contamination, waterproof, warpage, impact. The method according to claim 1, The road guide cover block, A memory unit having a built-in position information capable of being operated according to the induced electromotive force generated through the coil antenna; A built-in coil antenna installed inside the cover block to generate an induced electromotive force by receiving a predetermined wireless power wave from the wireless sensing wand; A control unit for reading out position information stored in the memory and controlling the transmission to a wireless sensing stick through a coil antenna; Route guidance system, characterized in that consisting of. The method according to claim 1, The wireless sensing wand, An antenna unit which transmits a predetermined radio frequency to the coil antenna of the block to transmit induced electromotive force and receives position information; A microcomputer that converts the position information data transmitted from the antenna unit into a digital signal, controls a decoder and a system for comparing, analyzing, and decrypting with a predetermined encryption algorithm, and outputs a control signal corresponding thereto as necessary; A voice synthesizer for converting and synthesizing the location related information into a road guide voice signal according to the control signal of the microcomputer; Voice output means for outputting a road guide voice conversion signal received from the voice synthesizer to an external sound output device; And power supply means for supplying predetermined operating power to the microcomputer. Route guidance system, characterized in that consisting of. The method according to claim 3, Power switch externally controllable so that the power supplied to the overall device of the wireless sensing wand is located at the handle of the wireless sensing wand or at the end of the wireless sensing wand so that power can be supplied when contacting the road guide marker block. ; Route guidance system characterized in that it further comprises. The method according to claim 3, Vibration generating means is built in a predetermined position inside the wireless sensing wand, and generates a vibration according to the control signal of the microcomputer when the frequency generated from the antenna of the road guide marker block is detected; The route guidance system further comprises. The method according to claim 2 or 3, The transmission and reception distance between the antenna portion of the wireless sensing wand and the coil antenna of the road guidance marker block is about 10 to 20 cm, so that the road guidance system characterized in that there is no interference with other adjacent road guidance marker block. delete delete

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