KR101692311B1 - Road Guide System Based On Voice - Google Patents

Road Guide System Based On Voice Download PDF

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Publication number
KR101692311B1
KR101692311B1 KR1020150055059A KR20150055059A KR101692311B1 KR 101692311 B1 KR101692311 B1 KR 101692311B1 KR 1020150055059 A KR1020150055059 A KR 1020150055059A KR 20150055059 A KR20150055059 A KR 20150055059A KR 101692311 B1 KR101692311 B1 KR 101692311B1
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South Korea
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terminal
voice
wifi
information
node
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KR1020150055059A
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Korean (ko)
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KR20160124951A (en
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양기성
김기우
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(주)뉴웰파워
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers
    • G01C21/3626—Details of the output of route guidance instructions
    • G01C21/3629—Guidance using speech or audio output, e.g. text-to-speech
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers
    • G01C21/3697—Output of additional, non-guidance related information, e.g. low fuel level
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L13/00—Speech synthesis; Text to speech systems
    • G10L13/02—Methods for producing synthetic speech; Speech synthesisers

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Traffic Control Systems (AREA)
  • Navigation (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice guidance system, and more particularly, to a voice guidance system having a voice guidance terminal, a location information node installed in public facilities on the street, and a wireless data transmission system such as RFID or WiFi And a character conversion engine and a voice conversion engine are mounted on the node or a terminal communicating data with a wireless data transmission system such as RFID or WiFi, and a wireless data transmission system such as RFID, WiFi, etc., So that the user can walk or guide the route through the voice to the desired direction or destination of the transportation weak person such as the visually handicapped person or provide the location guidance as well as the voice guidance service for the facility object which the transportation weak person intends to use when walking to the destination Based route guidance system that enables safe walking and movement of people with disabilities. It is.

Description

[0001] The present invention relates to a voice guidance system,

The present invention relates to a voice-based route guidance system for a traffic impaired such as a visually impaired person, and more particularly, to a voice-based route guidance system for a visually impaired person, By combining the character conversion technique for converting information into characters and the voice conversion technology for converting characters into voice, the user can be guided or guided to the desired direction or destination of the traffic. Based route guidance system capable of providing a location guidance and voice guidance service for a facility object to be provided.

We use buses, subways, and sidewalks as the means of transportation for social activities. Transportation underprivileges, such as the visually impaired, have a high jaw, which is common in buses, bus stops, underground stations, Or a wide clearance, a smooth road surface, and the like.

In addition, traffic abbreviations represent people who often have to suffer inconveniences in the above-mentioned traffic environment, and those who must move despite the inconvenience.

In particular, blind people are people who have vision problems such as low vision, unilateral blindness, vision deficit, blindness, etc., who can not see their eyes. Most of them are performing positional movements using assistive devices such as canes, There are many cases in which an injured person is injured due to a lack of detection information such as an obstacle and the like.

Braille blocks for pedestrians and pedestrians for pedestrians are installed on the pedestrian roads for the traffic disadvantages of the visually handicapped people. However, they are very ineffective. Recently, Technologies have been proposed.

For example, in Japanese Unexamined Patent Application Publication No. 2002-024983, a braille block equipped with an RFID tag, a receiving device for reading information of the RFID tag, and guide means for generating route guidance information based on the information read by the receiving device Wherein each of the braille blocks has an RFID tag in which a predetermined number is recorded so that a moving direction can be known through the receiving device, The RFID tag information of the RFID tag is stored and the blind is guided through the input path.

In addition, an RFID or NFC tag carrying route guidance information is installed in the braille block, an RF reader is installed in a stick used by the visually impaired, and a voice guidance is provided to the information read by the RF reader Are proposed.

However, the risk of blindness is followed by the accident, the technology of precise positioning and direction is not available, and blind people are still uncomfortable.

Korean Registered Patent No. 10-1501062 (Feb.

Disclosure of Invention Technical Problem [8] The present invention has been devised to solve the above-described problems and to provide a wireless data transmission system such as RFID or WiFi to receive location information and route guidance information and to convert received information into text By combining the character conversion technology and the voice conversion technology for converting the characters into voice, it is possible to guide or guide the voice to the direction or the destination of the desired direction of the traffic. In addition, the position of the facility object And to provide a voice guidance system capable of providing a voice guidance service and a voice guidance service.

The present invention converts RFID tag information to text or converts information received via WiFi to text and outputs characters through voice conversion (TTS) technology, Based route guidance system that can provide a route guidance service by voice in cooperation with each location information node (Node).

The present invention includes a voice guidance terminal held by a traffic weak person, a location information node installed in a public facility on the street, and an RFID tag attached to a facility object, and wireless data transmission such as RFID or WiFi The present invention provides a voice guidance system for providing a voice guidance service for a safe walking of a weak person through a configuration utilizing the system.

In order to achieve the above object, the voice-based guidance system according to the present invention is a mobile device to be held by a traffic weak person including a visually handicapped person, and can communicate data with a node or an RFID tag through a wireless data transmission system of RFID or WiFi And the information transmitted from the node or the RFID tag is finally output by voice using a character conversion engine and a voice conversion engine mounted on the vehicle so that the traveling direction or the destination information or the information of the facility object, ; The data communication network is installed in public facilities such as a sidewalk, and is provided to be capable of data communication with the terminal. Data communication with the terminal includes present location information including a location of a traffic abbreviation, Lt; / RTI > And a radio frequency identification tag attached to a facility object to be used when the traffic weak is walking to a destination, the RFID tag being capable of data communication with the terminal and transmitting the information of the facility object to the terminal.

Here, the terminal manages data communication through the wireless data transmission system of WiFi or RFID with the node or the RFID tag, as well as a terminal management unit for power management; A device driver unit for controlling input / output of the terminal management unit and performing audio control for outputting audio; A character conversion engine for generating a sentence by searching, searching and decoding the corresponding character code with respect to information transmitted from the node or the RFID tag, and processing the mapping table; And a voice conversion engine for automatically analyzing sentences generated through the character conversion engine and converting the sentences into voice through synthesis of voice signals.

Here, the character conversion engine may include an RFID character code DB used for converting the tag information received from the RFID tag into a character matched to the tag information; An RFID decoding unit for decoding a character matched to the tag information extracted through the RFID character code DB to produce a mapping table; A character code DB for WiFi used to convert SSID information received from the node into a character matched thereto; A WiFi decoding unit for decoding a character matched to the SSID information detected through the WiFi character code DB to generate a mapping table; And a sentence generation unit for generating a sentence by combining the mapping table created through the RFID decoding unit or the WiFi decoding unit.

Here, the speech conversion engine may include a language analyzer for automatically analyzing a type of a sentence generated through the character conversion engine; A rhyme generator for generating a rhyme suitable for sentences analyzed through the language analyzer; And a speech synthesizer for synthesizing the sentence and the rhyme to generate a speech signal.

Here, the language analyzer may include a preprocessor for separating and processing a word in a sentence generated through the character conversion engine; A morpheme analyzer for analyzing the morpheme in the individual processed phrases through the preprocessor; And a parser that parses a sentence generated through the character conversion engine according to a grammar rule and examines and determines whether or not the sentence matches the grammar, wherein the prosody generator generates a sentence A phonetic converter for generating a phoneme corresponding to a minimum unit of sound; A synthesis unit selector for selecting a unit for synthesis of a phoneme generated through the phonetic transducer; And a duration controller for controlling a tone length through synthesis of the phoneme.

Here, the SS may include an SSID receiver for receiving, from a node, SSID information having an SSID used as an identifier of an access point for WiFi in data communication with the node; An SSID analyzer for analyzing SSID information received through the SSID receiver and recognizing and locating a cell space of a current terminal; A sensor detection unit for detecting a signal strength (RSS) of WiFi used for receiving the SSID information; And an RSS analyzer for analyzing the signal intensity of the WiFi detected through the sensor detector and recognizing and identifying the cell space of the current terminal and recognizing the moving direction of the terminal.

Here, the terminal management unit may include: a power management unit for managing power of the terminal; A WiFi protocol for enabling and managing data communication with the node; And RFID reader management for enabling data communication with the RFID tag and managing the data communication.

Here, the node may include an RF channel status recognition unit for recognizing a radio wave environment in an installation space; A cell power planning unit for supplying power necessary for the propagation environment in the installation space; An interference avoiding cell setting unit for smoothly maintaining coexistence with a surrounding communication environment and avoiding interference with each other; And a network management unit for managing the connection with a correct access point to securely support a WiFi connection.

Here, a terminal is provided between the terminal and the node so that data can be communicated for information transmission when the terminal approaches the node within 5 m, and the terminal is provided between the terminal and the RFID tag so that data can be communicated for information transmission when the terminal is within 1 m .

Here, the facility object includes a braille board, a palm-faced board, and a palm-faced pad.

According to the present invention, location information and route guidance information are received wirelessly using a wireless data transmission system such as RFID, WiFi, etc., and transmitted through a voice information terminal equipped with a character conversion engine and a voice conversion engine, And it is also possible to provide the location guidance and voice guidance service for the facility object to be used in walking to the destination by the traffic weak person.

The present invention relates to a voice information terminal device, a location information node installed in a public facility on the street, and an RFID tag attached to a facility object. The system includes a wireless data transmission system such as RFID or WiFi It is possible to provide a voice-based indoor / outdoor safe walking guide service for a traffic weak person through wireless data communication utilizing the wireless data communication.

The present invention can provide a social welfare service for the visually impaired and the like, provide a guidance service for location guidance and safe walking by voice, and useful for providing a voice guidance navigator Can be achieved.

1 is a block diagram of a voice guidance system according to an embodiment of the present invention.
FIG. 2 is a block diagram for explaining location information and direction recognition in a voice-based route guidance system according to an embodiment of the present invention.
3 is an exemplary diagram for explaining a character and voice conversion technique by communication between a node and a terminal in a voice-based route guidance system according to an embodiment of the present invention.
FIG. 4 is a diagram for explaining a character and voice conversion technique by communication between an RFID tag and a terminal in a voice-based route guidance system according to an embodiment of the present invention.
5 is a schematic flowchart illustrating a voice-based route guidance method using a voice-based route guidance system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

The voice-based route guidance system according to the embodiment of the present invention is a route guidance system for constructing a social welfare-based service using public facilities for a traffic impaired such as a visually handicapped person and providing a service for location guidance and safe walking by voice.

1 to 4, a voice-based route guidance system according to an embodiment of the present invention includes a terminal 100, a node 200, and an RFID tag 300.

The terminal 100 is a mobile device to be owned by a traffic disadvantaged person including the visually impaired and is capable of communicating data with the node 200 or the RFID tag 300 through a wireless data transmission system of RFID or WiFi, The information transmitted from the RFID tag 300 or the RFID tag 300 is finally output by voice using the character conversion engine 130 and the voice conversion engine 140, And is a voice guidance content smart device for voice guidance of object information.

At this time, the terminal 100 basically has an operating system (O / S) for operating a mobile device, and a speaker for outputting voice is mounted.

The terminal 100 manages data communication through the wireless data transmission system of WiFi or RFID with the node 200 or the RFID tag 300 as well as the terminal management unit 110 for power management A device driver 120 for controlling the input and output of the terminal management unit 110 as well as audio control for outputting audio information and information transmitted from the node 200 or the RFID tag 300 A character conversion engine 130 for generating a sentence by searching and extracting the corresponding character code with respect to a character string (or tag information) and decoding the character code and processing the mapping table, and a text analysis engine 130 for automatically analyzing sentences generated through the character conversion engine 130, And a voice conversion engine 140 that converts voice to voice immediately.

The terminal management unit 110 includes a power management 111 for managing the power of the terminal 100, a WiFi protocol 112 for enabling and managing data communication with the node 200, And an RFID reader management 113 for enabling data communication with the tag 300 and managing the data communication.

The device driver 120 includes an audio control driver 121 for controlling audio for audio output from the terminal 100, a power control driver 122 for controlling the power of the terminal 100, A WiFi driver 123 for controlling a WiFi connection between the terminal 100 and the node 200 and an RFID reader driver 123 for controlling the connection between the terminal 100 and the RFID tag 300 and information recognition (Not shown).

The character conversion engine 130 includes an RFID character code DB 131 for use in converting tag information received from the RFID tag 300 into characters matched with the tag information, An RFID decoding unit 132 for decoding a character matched to the tag information extracted through the decoding unit 131 to generate a mapping table, and a decoding unit 132 for converting the SSID information received from the node 200 into a character A WiFi decoding unit 134 for decoding a character matched to the SSID information detected through the WiFi character code DB 133 to generate a mapping table, And a sentence generation unit 135 for generating a sentence by combining the mapping tables created through the decoding unit 132 for the WiFi or the decoding unit 134 for WiFi.

Here, the tag information may be coded information, which is the route guidance information of the RFID tag 300 attached to the facility object to be used while the transportation weak is walking.

Here, the service set identifier (SSID) can be defined as a service set identifier. As an identifier (ID) for distinguishing each wireless network, only devices having the same SSID can communicate with each other on a network. When a different SSID is input for each AP, the user can select and use the corresponding network according to the SSID input to the LAN card, and the WiFi connection The name of each access point (AP).

That is, the SSID (Service Set Identifier) is an identifier of an access point defined by a communication standard of a wireless LAN such as WiFi, and can avoid confusion when there are a plurality of access points in the same space.

Accordingly, the SSID information used in the present invention may be data that can be transmitted to the terminal 100 held by the weak in traffic through WiFi or the like, and may be referred to as location information and route guidance information of the node 200 , And coded information.

Accordingly, the character conversion engine 130 decodes information and coded information received from the node 200 or the RFID tag 300, creates a mapping table, and combines them to generate a sentence for guidance.

3 and 4, when the terminal 100 receives SSID information or Tag information from the node 200 or the RFID tag 300, the terminal 100 decodes the coded information of the SSID information or the tag information, A mapping table is created and a combination of these is created to generate a sentence for guiding the route.

For example, "There is a toilet on the right side", "There is a stairway in front of 1m ahead", "There is a toilet on the right side in front of 1m", "There is a door on the left side in front of 10m ahead." The node 200 or the RFID tag 300 can generate a sentence for guiding the route.

The speech conversion engine 140 converts characters to speech and is also referred to as a TTS (Text To Speech) engine. The speech conversion engine 140 includes a language analyzer 141 for automatically analyzing the types of sentences generated through the character conversion engine 130, A rhyme generator 142 for generating a rhyme suitable for the sentence analyzed through the language analyzer 141, and a speech synthesizer 143 for synthesizing the sentence and the rhyme to generate a speech signal .

Here, the language analyzer 141 includes a preprocessor 141a for separating and processing a word in a sentence generated through the character conversion engine 130, and a preprocessor 141a for analyzing the morpheme in the individual processed phrases through the preprocessor A parser 141c as a parser for parsing and analyzing a sentence generated through the character conversion engine 130 according to a grammar rule and checking whether the sentence matches the grammar, May be included.

Here, the rhythm generator 142 may include a phoneme converter 142a for generating a phoneme, which is a minimum unit of sound, for a sentence generated through the character conversion engine 130, A synthesis unit selector 142b for selecting a unit for synthesizing the generated phonemes and a duration controller 142c for controlling the sound length through synthesis of the phonemes .

Accordingly, the terminal 100 analyzes the sentence generated through the voice conversion engine 140, directly converts the sentence into a voice signal, and outputs voice, thereby guiding and guiding the voice through the voice.

For example, "There is a toilet on the right side", "There is a stairway in front of 1m ahead", "There is a toilet on the right side in front of 1m", "There is a door on the left side in front of 10m ahead." The user can guide the user through the information provided by the node 200 or the RFID tag 300 by voice.

In addition, the SS 100 has an SSID receiver 151 for receiving SSID information having an SSID used as an identifier of an access point for WiFi in data communication with the node 200 from the node 200, And can provide direction information in a cell environment.

To this end, an SSID analyzer 152 for analyzing SSID information transmitted from the node 200 through the SSID receiver 151 and recognizing and locating a cell space of the current terminal 100, A sensor detection unit 153 for detecting received signal strength RSS of WiFi used for receiving SSID information transmitted from the node 200 through the SSID receiving unit 151, 153 for analyzing the signal intensity of WiFi detected by the mobile terminal 100 and recognizing the cell space of the current terminal 100 and recognizing the position of the cell space and recognizing the moving direction of the terminal 100 Lt; / RTI >

Herein, the cell refers to an area covered by one base station in mobile communication, and is a cell space through which the terminal 100 accesses the node 200 or the RFID tag 300 The current position and the moving direction can be grasped.

Here, the RSS analyzing unit 154 receives the signal intensity of the WiFi detected from the sensor detecting unit 153, analyzes how much the signal is attenuated before or immediately before, and estimates the distance to the access point of each WiFi The position and direction of the current terminal 100 can be recognized using the position of the access point of each WiFi and the calculated distance.

That is, the terminal 100 recognizes a cell space in which the current terminal is located and recognizes a gait using the SSID information transmitted and received from each node 200 through the above configuration, It is possible to recognize the direction of the current terminal and to provide location guidance and route guidance service by voice to the traffic weak person as well as provide more accurate service.

The node 200 is one or more functional units connected to a path for transmitting data in a data communication network. The node 200 can be defined as a configuration pointing to a branch point of a communication network or a connection point of a terminal. The node 200 is installed in public facilities A plurality of data communication networks are provided and are installed at a certain distance.

The node 200 is provided to be able to perform wireless data communication with the terminal 100. The node 200 transmits current location information including its current location information through wireless data communication with the terminal 100, And wirelessly transmits the data to the terminal 100.

At this time, the node 200 is provided to transmit data to the terminal 100 by utilizing a wireless transmission system of WiFi, and is provided with SSID information. In addition to the ID, location information and route guidance information are recorded.

Here, it is preferable that the node 200 is configured to be able to provide the location information of the vulnerable area through cell planning.

To this end, the node 200 includes an RF channel status recognition unit 210 for recognizing the propagation environment in the installation space for each node, a cell power planning unit 210 for supplying power necessary for the propagation environment in the installation space An interference avoiding cell setting unit 230 for smoothly maintaining coexistence between neighboring communication environments and avoiding inter-node (inter-node) interference, and an interference avoiding cell setting unit 230 for ensuring a connection with a correct access point for WiFi connection And a network management unit 240 for managing the network management unit 240 so as to support the network management.

At this time, the node 200 may include a cell antenna planning unit 250, a Wi-Fi control unit 260, and a planned cell configuration unit 270.

The RFID tag 300 is a radio wave identifier attached to a facility object to be used when walking to a destination, and is capable of wireless data communication with the terminal 100, and transmits information about the facility object to the terminal 100, .

At this time, the RFID tag 300 may be composed of an RFID chip and an RFID antenna. In the RFID chip, the identification ID and the route guidance information of the facility object are recorded.

Herein, the facility object includes a braille board, a palm-sized board, a palm-sized palm tree, and other facilities used by other traffic-impaired persons.

Between the terminal 100 and the node 200 is provided a wireless data communication for information transmission when the terminal 100 approaches the node 200 within 5 m and the terminal 100 and the RFID tag 300 It is preferable that the terminal 100 is capable of wireless data communication for information transmission when it is within 1 m.

The voice-based route guidance method using the voice-based route guidance system according to the embodiment of the present invention will be described with reference to FIG.

First, a voice and / or audio terminal is installed in a public facility such as a visually impaired person so as to enable wireless data communication with the terminal, and the RFID tag is connected to the terminal And establishes a voice-based route guidance system by attaching the abbreviated person to a facility object to be used when walking to a destination (S110).

At this time, it is assumed that the terminal, the node, and the RFID tag have the above-described configuration.

When the SSID is moved to a node or RFID tag, the SSID information is transmitted from the SSID to the node or the RFID tag, Or Tag information (S120).

Here, when the terminal receives the SSID information from the node, the terminal converts the coded SSID information into a character and converts it into a mapping table, thereby generating a sentence for a route guidance such as a traveling direction or a destination And synthesizes the voice signal and outputs it as voice (S130).

At this time, the traffic abbreviation is walked and moved by the route guidance service at the corresponding point output through the terminal, and the traffic abbreviation having the terminal can move to a desired direction or destination through voice guidance.

Herein, in the case where the terminal receives SSID information from a node, the terminal analyzes the SSID information received from the node and recognizes and locates the cell space of the current terminal, (RSS) of the WiFi used for reception of the mobile station, analyzes and recognizes the cell space of the current mobile station, and recognizes the moving direction of the mobile station .

Through the addition, the direction information can be provided in the established cell environment, and more accurate guidance service can be provided.

When the terminal receives Tag information from the RFID tag, the terminal generates a character conversion and mapping table by decoding the coded Tag information, and generates a sentence for the position and route guidance of the facility object through the conversion In addition, the voice signal is synthesized and outputted as voice (S140).

At this time, the location guidance service for the facility object to be used by the transportation weak can be provided through the guidance service outputted through the terminal through the voice.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to be illustrative, Substitution can be made, which will be within the technical scope of the present invention.

100: terminal 110:
120: Device driver section 130: Character conversion engine
140: voice conversion engine 200: node
300: RFID tag

Claims (10)

delete A mobile device to be held by a transportation weak person including a visually impaired person and being capable of data communication with a node 200 or an RFID tag 300 through a wireless data transmission system of RFID or WiFi, The information transmitted from the terminal 300 is finally output by voice using the character conversion engine 130 and the voice conversion engine 140 mounted on the vehicle, so that the traveling direction, the destination information, A terminal 100 for performing a predetermined function; A data communication network installed in a public facility on the street including a sidewalk. The data communication network is provided for data communication with the terminal 100 and includes current location information including data on the location of a traffic abbreviation through data communication with the terminal 100, A node 200 for transmitting route guidance information to the terminal 100; An RFID reader (300) for data communication with the terminal (100) and transmitting information of a facility object to the terminal (100), the radio wave identifier being attached to a facility object to be used in walking to a destination. ;
The terminal (100)
A terminal management unit 110 for managing data communication through the wireless data transmission system of WiFi or RFID with the node 200 or the RFID tag 300, as well as for power management;
A device driver 120 for controlling input / output of the terminal management unit 110 and audio control for outputting audio;
A character conversion engine 130 for generating a sentence by searching, extracting and decoding the corresponding character code with respect to information transmitted from the node 200 or the RFID tag 300, and processing the mapping table;
A voice conversion engine 140 for automatically analyzing sentences generated through the character conversion engine 130 and converting the sentences into sounds through voice synthesis; Wherein the voice guidance system comprises: 3. The method of claim 2,
The character conversion engine (130)
An RFID character code DB 131 used to convert the tag information received from the RFID tag 300 into a character matched to the tag information;
An RFID decoding unit 132 for decoding a character matched to the tag information extracted through the RFID character code DB 131 to generate a mapping table;
A character code DB 133 for WiFi used for converting the SSID information received from the node 200 into a character matched with the SSID information;
A WiFi decoding unit 134 for decoding a character matched to the SSID information detected through the WiFi character code DB 133 to generate a mapping table;
A sentence generation unit 135 for generating a sentence by combining the mapping tables created through the RFID decoding unit 132 or the WiFi decoding unit 134; Wherein the voice guidance system comprises: 3. The method of claim 2,
The voice conversion engine (140)
A language analyzer 141 for automatically analyzing the type of the sentence generated through the character conversion engine 130;
A rhyme generator 142 for generating a rhyme suitable for sentences analyzed through the language analyzer 141;
A speech synthesizer 143 for synthesizing the sentence and the rhyme to generate a speech signal; Wherein the voice guidance system comprises: 5. The method of claim 4,
The language analyzer 141,
A preprocessor 141a for separating and processing the words in a sentence generated through the character conversion engine 130;
A morpheme analyzer 141b for analyzing the morpheme in the individual processed word through the preprocessor;
A parser 141c which is a parser for parsing the sentence generated through the character conversion engine 130 according to grammar rules and examining and determining whether the sentence matches the grammar; / RTI >
The rhythm generator (142)
A phonetic converter 142a for converting a sentence generated through the character conversion engine into a phoneme which is a minimum unit of sound;
A synthesis unit selector 142b for selecting a unit for synthesis of a phoneme generated through the phonetic transducer;
A duration controller 142c for controlling a sound length through synthesis of the phoneme; Wherein the voice guidance system comprises: 3. The method of claim 2,
The terminal (100)
An SSID receiver 151 for receiving from the node 200 SSID information having an SSID used as an identifier of an access point for WiFi in data communication with the node 200;
An SSID analyzer 152 for analyzing the SSID information received through the SSID receiver and recognizing and locating a cell space of the current terminal 100;
A sensor detecting unit 153 for detecting a signal strength (RSS) of WiFi used for receiving the SSID information;
An RSS analyzing unit 154 for recognizing the cell space of the current terminal 100 by analyzing the signal intensity of the WiFi detected through the sensor detecting unit and recognizing the position of the cell space and recognizing the moving direction of the terminal 100; Further comprising: a voice-based navigation system; 3. The method of claim 2,
The terminal management unit 110,
A power management (111) for managing power of the terminal (100);
A WiFi protocol 112 for enabling and managing data communication with the node 200;
An RFID reader management 113 for enabling and managing data communication with the RFID tag 300; Wherein the voice guidance system comprises: 3. The method of claim 2,
The node (200)
An RF channel condition recognition unit 210 for recognizing a propagation environment in an installation space;
A cell power planning unit 220 for supplying power required for the propagation environment in the installation space;
An interference avoiding cell setting unit 230 for maintaining coexistence with the surrounding communication environment smoothly and avoiding interference with each other;
A network management unit 240 for managing the connection with a correct access point to securely support a connection for a WiFi connection; Wherein the voice guidance system comprises: delete delete
KR1020150055059A 2015-04-20 2015-04-20 Road Guide System Based On Voice KR101692311B1 (en)

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