KR20090012388A - Method and system for providing traffic information of blind persons - Google Patents

Abstract

A traffic information system and a method for the blind are provided to service the guide voice regardless of the ambient noise to the blind by using the log information of the blind managed in the main server. A traffic information system comprises an RFID tag(110), a Bluetooth terminal(120), a signal lamp system(200) and a main server(300). The encrypted EPC code according to the profile of the blind is recorded In the RFID tag. The Bluetooth terminal outputs the voice corresponding to the radio frequency signal received in the Bluetooth mode. The signal lamp system transmits the voice signals of the traffic information and additional information to the Bluetooth terminal. The signal lamp system outputs through the voice output unit. The signal lamp system provides the log information about the blind. The main server manages the log information to the database and performs the proper action by using the log information when the blind is in an emergency situation.

Description

Traffic Guidance System for the Visually Impaired and Method thereof

The present invention relates to a traffic guidance system and method for the visually impaired, and more particularly, not only can provide a guide voice according to traffic information to the visually impaired, but also can provide a guide voice regardless of ambient noise. The present invention relates to a traffic guidance system and method for visually impaired persons, who are prevented from listening to traffic information about visually impaired people who may be malicious to people around them.

Today, due to the increase in social income and the increasing interest in welfare, traffic guides have been proposed to allow normal traffic activities such as blind people.

A general traffic guide embeds a memory card inside a braille block or a sidewalk block that enables a blind person to check whether a danger zone or a crosswalk is detected by using a tactile touch or the like. After the sensor is attached to the sensor, the sensor detects the danger or departure of the road to the visually impaired by generating a vibration or alarm sound when the memory card is approached.

In this general case, it is only possible to inform the visually impaired about the danger or departure of the road, but it is not possible to provide more specific guidance, such as where the current location is or whether it is possible to reach the desired destination if you continue in the current direction. Do.

In addition, if a specific guide is given to the visually impaired by outputting a guide voice through the speaker, people around the audience can also listen together, and the surrounding people can also identify the destination of the visually impaired. For example, they are more likely to be exposed to crimes such as pickpockets.

As a conventional technology for solving the above problems, Korean Patent Laid-Open Publication No. 10-2006-0057152 discloses a "broadcasting voice guide system for the visually impaired", which broadcasts a traffic signal situation based on a sensor signal detecting an RFID card possessed by a visually impaired person. Proposed system to inform.

However, in the prior art, it is possible to simply obtain traffic information of the current location of the visually impaired person, and in case an emergency occurs in the visually impaired person, the surrounding people should request extra help.

Further, since only the traffic information of the location where the RFID terminal is installed is outputted, there is no method for managing personal information or location information for the visually impaired, and therefore, quick actions cannot be taken when an emergency occurs.

In addition, since the guide voice according to the traffic information of the corresponding location is stored in each RFID terminal, the position of the RFID terminal cannot be moved, and if the RFID terminal fails, the guide voice according to the corresponding position is directly applied to the RFID terminal to be replaced. Must be set

Therefore, the present invention was devised to solve the above problems, and can provide a guide voice according to traffic information to the visually impaired, and can provide a guide voice regardless of ambient noise, It is an object of the present invention to provide a traffic guidance system and a method for visually impaired persons who cannot listen to traffic information for visually impaired people who are malicious to use.

Since the present invention manages the log information of the visually impaired through the main server, it is an object of the present invention to provide a traffic guide system and method for the visually impaired that can respond quickly and appropriately when an emergency situation occurs.

Another object of the present invention is to provide a traffic guide system and a method for the visually impaired, which are easy to change or newly install a location of a traffic light system that provides additional information as well as traffic information for the visually impaired.

According to an aspect of the present invention, a traffic guide system for the visually impaired includes an RFID tag in which an encrypted EPC code is recorded according to personal information of the visually impaired, and is worn by the visually impaired, and is a Bluetooth system. Bluetooth terminal for outputting a voice corresponding to the RF signal received by the RFID tag, when the RFID tag is approached, receives the EPC code and converts it into a tag value, to identify the personal information corresponding to the tag value, to the traffic information A traffic light system which transmits a signal of a traffic guidance voice according to the traffic guidance and additional information according to the additional information to the Bluetooth terminal, or outputs it through an audio output unit, and provides log information for the visually impaired; And the traffic guidance voice according to the location where the traffic light system is installed. If service within the voice, and by managing the log information to the database, which the emergency has occurred to the visually impaired, a main server to respond, based on the log information.

The traffic light system includes: an RFID terminal for receiving an RF signal from the RFID tag, converting the signal into a tag value, grasping the personal information, and providing the traffic guidance voice and the additional guidance voice; a traffic light output unit for outputting a traffic light state; And a traffic light control unit controlling the traffic light state of the traffic light output unit.

The RFID terminal includes an identification information storage unit for storing personal information corresponding to a tag value, a guide voice storage unit for storing the traffic guidance voice and an additional guide voice, and a signal for transmitting the signal to the Bluetooth terminal. A Bluetooth module, a voice output unit for outputting each guide voice, a plurality of RF antennas for receiving the RF signal from the RFID tag, and a signal processing unit for converting the RF signal received from each RF antenna into a tag value. And identifying the personal information corresponding to the tag value converted by the signal processor, selecting the respective guide voices, and transmitting the guide voices through the Bluetooth module when the visually impaired person carries the Bluetooth terminal. If not carrying the Bluetooth terminal, and output through the voice output unit, It includes the instructions for transmitting the control group the log information to the main server, such that parts of the network interface transmits the log information to the main server via a wired / wireless network.

Each of the RF antennas is implemented with at least one directional antenna, and tunes according to the feature and the situation, and adjusts the gain of the RF antenna according to the climate by systematically adjusting the gain to adjust the recognition rate. To increase reception sensitivity.

The personal information may include at least one of a name, a resident number, a disability number, a disability level, a type of disability, a guide dog, an address, a telephone number, a mobile phone number, and a Bluetooth terminal.

The traffic guidance voice is a voice corresponding to at least one or more of the location information of the traffic light system, the name of a place, a passing / going direction, a street address, a name of a nearby building, or a signal state.

The additional guidance voice is a voice corresponding to any one or more of local information, weather information or event information.

The main server generates a registration unit for registering the personal information about the visually impaired through a computer terminal, an encrypted EPC code according to the personal information registered through the registration unit, and generates the RFID tag in which the EPC code is recorded. A tag issuing unit for outputting and distributing to the visually impaired, a system management unit for setting environment information corresponding to a location where the location of the traffic light system is changed or newly installed, and a plurality of traffic light systems connected through a wired / wireless network. And a database for storing log information received from the traffic light system and a traffic guidance voice and an additional guidance voice set in the above.

The system manager sets at least one environment information of a local address, a database connection string, an IP address, or a COM port of the traffic light system.

The log information is at least one of personal information, traffic information, and time information of the visually impaired person.

The RFID tag is attached to a wand possessed by the visually impaired, and the Bluetooth terminal is implemented by embedding a Bluetooth function in an earphone that can be worn on the ear of the visually impaired.

According to another aspect of the present invention, there is provided a traffic guide method for the visually impaired, comprising: registering personal information about a visually impaired person whose main server is registered, and receiving an RFID tag in which an EPC code according to the personal information is recorded Distributing, receiving an RF signal from an RFID tag accessed by the traffic light system, converting the RF signal into a tag value, identifying corresponding personal information, and providing a traffic guidance voice for the visually impaired. And selecting an additional guide voice, determining whether the Bluetooth terminal is in the personal information, and if a) is possessed, securing a channel in a Bluetooth manner to transmit each guide voice, and b) not carrying it. And outputting the guide voices through a voice output unit, and log information of the visually impaired main server. Transmitted, and a step in which the main server manages the log information of the visually impaired.

The step of registering the personal information, name, resident number, disability number, disability level, disability type, presence of guide dog, address, telephone number, mobile phone number or Bluetooth terminal through the registration screen output to the computer terminal Register at least one input.

The EPC code is encrypted to prevent leakage of the personal information.

The traffic guidance voice and the additional guidance voice are directly set and stored in the traffic light system or downloaded from the main server.

The transmission / output of the traffic guidance voice transmits / outputs a voice corresponding to at least one or more of location information of the traffic light system, a name of a place, a passing / going direction, a number of addresses, a name of a nearby building, or a signal state.

The transmission / output of the additional guidance voice transmits / outputs a voice corresponding to any one or more pieces of information of local information, weather information, or event information.

The traffic guidance method for the visually impaired may include setting, by the main server, at least one or more environment information among a local address, a database connection string, an IP address, or a COM port of the traffic light system when the location of the traffic light system is changed or newly installed. It further includes.

 The traffic guidance method for the visually impaired may include: when an emergency occurs in the visually impaired while the main server manages log information including at least one of personal information, traffic information, and time information of the visually impaired person; The method may further include coping with the log information.

As described above, according to the present invention, it is possible not only to provide the guide voice according to the traffic information to the visually impaired, but also to provide the guide voice regardless of the ambient noise, which may be used maliciously by the surrounding people. It is possible to prevent the traffic information for the visually impaired and to manage the log information of the visually impaired through the main server, it is possible to respond quickly and appropriately in the event of an emergency for the visually impaired.

Further, since the main server remotely configures each traffic light system, it is easy to change the location or newly install the traffic light system that provides not only traffic information but also additional information to the visually impaired.

In addition, according to the present invention, it is possible to prevent inconveniences and accident accidents for the visually impaired in advance, and can provide more convenience to airports, public offices, subway stations, etc. in using the facilities for the disabled.

In addition, according to the present invention, the log information for the visually impaired by the database can be linked with other systems, the movement path and activity radius of the visually impaired and the distribution of housing can also be investigated by statistics.

In addition, according to the present invention, not only the disabled but also the elderly can easily walk by simply purchasing and registering a stick with an RFID tag, and can be applied to various marketing by transmitting in real time from various traffic information and additional information. .

Hereinafter, with reference to the accompanying drawings, a traffic guide system and a method for the blind according to the present invention will be described in detail.

1 is a block diagram illustrating a traffic guidance system for the visually impaired according to the present invention.

Referring to FIG. 1, the traffic guidance system according to the present invention includes an RFID tag 110 distributed to a plurality of visually impaired people, a plurality of Bluetooth terminals 120 worn by each visually impaired person, and a traffic light system. And a main server 300.

The RFID tag 110 records the personal information of the visually impaired registered in the main server 300 as an EPC code and distributes the information to the visually impaired, and transmits an RF signal to the traffic light system 200 through the RF communication method.

The Bluetooth terminal 120 may be implemented by embedding a Bluetooth function in a voice output means such as an earphone, for example, a voice corresponding to a signal received in a Bluetooth manner from the traffic light system 200, for example, guidance corresponding to traffic information and additional information. Output voice.

2 illustrates an example in which an RFID tag and a Bluetooth terminal are worn by a visually impaired person. As shown in FIG. 2, the RFID tag 110 is a tool used by the visually impaired, for example, a cane 10. ), And the Bluetooth terminal 120 may be equipped with a Bluetooth function in the earphone, for example, to be worn by the visually impaired.

Therefore, the visually impaired person may attach to a tool (stick 10) using the RFID tag 110 to reduce the risk of loss and carry it without additional management. In addition, the user can listen to the guided voice through the earphone, so that the guided voice can be clearly heard even in a noisy environment of the surrounding environment, and to prevent people around the visually disabled from listening to the traffic information. Can be.

The traffic light system 200 stores the guide voice of traffic information and additional information corresponding to the tag value corresponding to the RF signal received from the RFID tag 110, and receives the RF signal from the RFID tag 110 approaching by the RF method. It receives and converts it into a tag value and outputs a guide voice corresponding to the tag value.

At this time, the traffic light system 200 transmits the guide voice to the Bluetooth terminal 120 in a Bluetooth manner, or in case the visually impaired does not have the Bluetooth terminal 120, a voice output unit such as a speaker (not shown) ( 216).

In addition, the traffic light system 200 may output additional information such as local information, weather information, and pedestal information of the corresponding area, in addition to the guide voice for the visually impaired.

In addition, the traffic light system 200 registers by transmitting log information such as personal information, traffic information, and time information for the visually impaired to the main server 300 after outputting the guide voice for the visually impaired.

In addition, the traffic light system 200 may be implemented by embedding the RFID terminal 210 in a traffic light installed in an environment such as a crosswalk or a crosswalk.

On the other hand, the traffic light system 200 according to the present invention can be implemented by embedding the RFID terminal 210 in the traffic light 20 installed in the crosswalk or crossing.

The main server 300 receives a plurality of pieces of personal information about the visually impaired and writes them to the RFID tag 110 to distribute the RFID tag 110 to the visually impaired.

The main server 300 manages log information such as traffic information corresponding to the locations of the plurality of traffic light systems 200 connected through a network and personal information of the visually impaired through the database 340. In addition, when an emergency situation occurs to the visually impaired, the main server 300 may report the personal information and the location information of the visually impaired, by using appropriate log information, for example, reporting to 119.

In addition, when the location of the traffic light system 200 is changed, the main server 300 changes and sets the guide voice for the corresponding location to facilitate the location change of the traffic light system 200.

3 is a block diagram for explaining in detail the traffic light system according to the present invention.

Referring to FIG. 3, the traffic light system 200 according to the present invention includes an RFID terminal 210, a traffic light output unit 230 for outputting a state of the traffic light 20, for example, a red light, a blue light, and the like. And a traffic light control unit 220 for controlling the traffic light 20 of the output unit 230. The RFID terminal 210 includes an RF antenna 211, a signal processing unit 212, a guide control unit 213, and yes. It includes a network interface unit 214, a Bluetooth module 215, a voice output unit 216, an identification information storage unit 217, and a guide voice storage unit 218.

Such, the traffic light system 200 may be implemented with an RFID terminal 210 including an RF antenna 211 in the traffic light, as shown in Figure 2b, the RF antenna 211 protrudes to the outside, Other components may be implemented in a traffic light terminal box (not shown).

In addition, the musk of the RFID tag 110 and the RFID terminal 210 applied to the present invention may be defined as follows.

1) RFID tag 110: RFID tag 110 can use a sticker (Sticker) RFID tag that can be read / write in the 900Mhz band, card type, coin type, etc. can also be used, and the following Table 1 Likewise, the international standard GEN2 is supported and its specifications are shown in Table 1 below.

Frequency 915 MHz Total memory 512bit (User area 384bit) or more EAS function Self-built Data Re-Writeable 100,000 times / 10 years or more Anti-collision 32EA / sec Working temperature -25'C to 70'C

2) RFID terminal 210: as a basic equipment for reading / writing data to the RFID tag 110, interlocked with the RFID tag 110 of the 900Mhz band, it is possible to filter information from the RFID tag 110, It may have the specifications as shown in Table 2.

Specifications sheath Length: 35.6 cm (14 in.) Width: 23.1 cm (9.1 in.) Height: 9.53 cm (3.75 in.) Environment Operating Temperature: 25 ℃ ~ 70 ℃ (13 ℉ ~ 158 ℉) Storage Temperature: 30 ℃ ~ 75 ℃ (22 ℉ ~ 167 ℉) Humidity: 10% to 90% (Noncondensing) Enclosure: IP53 Standard Features Communication interface options: Ethernet 10 / 100BaseT or Wireless 802.11g Operating system: Open Source Linux version 2.4.23 Input / output circuits: Four input (040VDC) and four output (048VDC .5 amp) circuits, 500ma 12VDC power Antenna connection Four Reverse SMA, 20dB software controller Power 110 240 VAC auto ranging, Power over Ethernet for controller (option) Power Supply is internal and included Duty Cycle: 100% RFID Frequency Ranges 869 and 915 MHz Tag Air Interfaces Intellitag G1 (Fairchild G1) ISO 180006b (Philips icode HSL) Philips Version 1.19EPCglobal UHF Gen 2 Protocols ANSI INCITS 256: 2001 Intermec Basic Reader Interface Connection to network Ethernet, 802.11G or 802.3 wired Software Device and Software Management: UC Davis NetSNMPDHCP client Telnet server Intermec ICCE / ICCU (config settings) IBM Tivoli IBM WebSphere Everyplace Device Manager Wavelink Avalanche Accessories 802.11g radio, antennas, antenna cables, mounting bracket Standards AIAG B11ANS INCITS 256: 1999 (R2001) Parts 2, 3.1 & 4.2 ANSI MH10.8.4 ISO / IEC CD18000 Part 4 ISO / IEC WD18000 Part 6 Part number F5UA20300000004 RFID Reader, Fixed, EPC global Gen 2 only, FCC, Ethernet (this is one of multiple unique configurations

The RF antenna 211 receives the RF signal from the approaching RFID tag 110.

The RF antenna 211 is preferably installed properly so that the shadow area that does not receive the RF signal from the approaching RFID tag 110 is not formed.

For example, when the intensity of the RF signal propagation is weakened, such as inclement weather, the main server 300 may adjust the radio wave reception sensitivity of the RF antenna 211 of the corresponding traffic light system 200.

The RF antenna 211 may acquire two kinds of up / down pairs by using the characteristics of the directional antenna to obtain a radio wave reception sensitivity which is further improved when the two antennas are used according to the corresponding sidewalk block at a differential angle.

4A to 4C illustrate an RF antenna according to the present invention. As shown in FIG. 4A, the flow of various RF signals of the RF antenna 211, which is a basic directional antenna, is performed with respect to the ground or an object. Refraction causes the RF signal of the corresponding RFID tag 110 to be read.

However, since various propagation or interference may occur according to the characteristics of the sidewalk block, a phenomenon such as FIGS. 4B and 4C occurs.

FIG. 4B illustrates an enhanced effect in which the main RF signal and the sub-RF signal are synchronized by reflection so that the RF signal of the RFID tag 110 of the corresponding portion is read more well, and FIG. 4C shows the main RF signal. And a sub-RF signal overlapping with each other, the RF signal of the RFID tag 110 is not read in the corresponding region (shading area).

As described above, the shaded area where the RF antenna 211 cannot read the RF signal from the RFID tag 110 may occur according to the terrain or the object of the area where the RF antenna 211 is to be installed. 211) should be measured and set up according to the features of the area.

4D and 4E illustrate the reception sensitivity of an RF antenna which is a directional antenna, and the reception sensitivity of the directional antenna is sensitive in almost one direction, so that one or more multiple, for example, 4R RF antennas 211 are shown. It is installed to tune the RF antenna 211 according to the feature and the situation, and to adjust the gain (Gain) systematically to the situation, and adjust the sensitivity of the RF antenna 211 according to the climate to adjust the recognition rate The reception sensitivity of the RF antenna 211 can be optimized.

The Bluetooth module 215 may transmit the guide voice from the traffic light system 200 to the Bluetooth terminal 120 in a Bluetooth manner. That is, the Bluetooth module 215 transmits a sound signal corresponding to the guide voice to the Bluetooth terminal 120 in a Bluetooth manner.

The voice output unit 216 may be implemented as a speaker, and outputs a guide voice according to traffic information and additional information under the control of the guide controller 213.

The guide voice storage unit 218 is a guide voice according to the traffic information, for example, "now red light. Please cross over later", "now blue light. You may skip", "blue light blinks". Please wait for the next signal, etc., as well as the location of the traffic guidance voice and traffic light system 200, such as location information, name of the place, passing / going directions, street address, name of a nearby building, etc. The additional guide voice according to the additional information is stored.

The traffic light system 200 may directly receive and store a traffic guide voice and an additional guide voice stored in the guide voice storage 218 or may download and store it from the main server 300.

The identification information storage unit 217 stores identification information according to a tag value recorded in the RFID tag 110, for example, personal information of a visually impaired person.

That is, since the tag value recorded in the RFID tag 100 is recorded by the tag issuing unit 320 of the main server 300 as an encrypted EPC code, the tag value corresponding to the tag value can be identified. Stores identification information.

In this case, the personal information of the visually impaired may be a name, a resident number, a disabled number, a disability level, a type of disability, whether a guide dog exists, an address, a phone number, a mobile phone number, and a Bluetooth terminal.

Meanwhile, the signal processor 212 converts the RF signal of the RFID tag 110 received through the RF antenna 211 into a tag value.

The traffic light control unit 220 controls an output state of the traffic light output unit 230, for example, a lighting state of a red light and a blue light, according to a preset algorithm.

The guide control unit 213 grasps the identification information corresponding to the tag value converted from the signal processing unit 212 in the identification information storage unit 217, and according to the output state of the traffic light output unit 230, the signal state, the position information, Provide the visually impaired voice with a traffic guidance voice including the name of the place, a passing / going direction, a street address, the name of a nearby building, or an additional guidance voice according to additional information.

In this case, the guide control unit 213 transmits the transmission channel through the Bluetooth module 215 when the visually impaired person possesses the Bluetooth terminal 220 according to whether the Bluetooth terminal 220 is present in the personal information of the visually impaired person according to the tag value. To secure the traffic guidance voice and the additional guidance voice, and if not carrying the Bluetooth terminal 220, outputs the traffic guidance voice and the additional guidance voice through the voice output unit.

On the other hand, the guide control unit 213 registers the personal information of the visually handicapped person accessed through the network interface unit 214 to the main server 300. That is, the guide control unit 213 transmits log information of the visually impaired to the main server 300.

The log information transmitted from the guide controller 213 to the main server 300 may be personal information, location information, time information, etc. of the visually impaired.

Therefore, the traffic light system 200 according to the present invention may transmit various kinds of guide voices to the Bluetooth terminal 120 or output the voice information through the voice output unit 216, and log information of the visually impaired main server 300. ) To be managed by the database 340.

5 is a block diagram illustrating a main server according to an exemplary embodiment of the present invention.

Referring to FIG. 5, the main server 300 according to the present invention is connected to a computer terminal 400 that allows an administrator to manage a traffic guidance system, and includes a register 310, a tag issuer 320, and a system manager. 330 and database 340.

The database 340 stores traffic information and additional information for each location of the plurality of traffic light systems 200 connected to the main server 300, and logs information about the visually impaired received from each traffic light system 200. Save it.

The registration unit 310 receives and registers the personal information about the visually impaired.

The tag issuing unit 320 generates an EPC code according to the personal information input through the registration unit 310, outputs the RFID tag 210, and distributes the RFID tag 110 to the visually impaired.

For example, access to the registration unit 310 through the computer terminal 400 to register the personal information for the blind.

FIG. 6A illustrates a screen for registering personal information about a visually impaired person. As illustrated in FIG. 6A, an administrator may identify personal information about a visually impaired person (ie, name, resident number, disabled number, and disability). The register, the type of disability, the presence or absence of a guide dog, an address, a telephone number, a mobile phone number and the presence of a Bluetooth terminal 120 is registered in the registration unit 310.

When the tag issuing unit 320 registers the personal information of the visually impaired through the registration unit 310, the tag issuing unit 320 generates an EPC code according to the personal information. At this time, the tag issuing unit 320 encrypts the EPC code in order to prevent leakage of personal information of the visually impaired.

The tag issuing unit 320 outputs the RFID tag 110 in which the encrypted EPC code is written to the visually impaired person, and carries only the RFID tag 210 to which the visually impaired person is distributed. Guidance voice may be provided from the system 200.

The system manager 330 manages traffic information and additional information for each location of the plurality of traffic light systems 200 to be connected. For example, when the location of the traffic light system 200 is changed or newly installed, the system manager 330 sets traffic information and additional information according to the location where the corresponding traffic light system 200 is installed.

FIG. 6B illustrates an initial screen in which a main server and a traffic light system are connected. As illustrated in FIG. 6B, when the traffic light system 200 approaches the RFID tag 110, an RF signal is received from the RFID tag 110. It connects to the main server 300 while receiving. That is, the traffic light system 200 connects to the main server 300 when the RFID tag 110 approaches.

The administrator may check whether the traffic light output unit 230 of the traffic light system 200 is correctly operated through the initial screen of the computer terminal 400, and the screen of the traffic light shape is automatically changed as the traffic light changes. You can check for errors and more.

FIG. 6C illustrates a screen in which a traffic light system reads an RFID tag. When the traffic light system 200 reads an RFID tag 110, the main server 300 stores log information about the visually impaired database (see FIG. 6C). 340, the traffic information and the additional information are provided to the visually impaired through the traffic light system 200.

At this time, the main server 300 transmits the traffic information and additional information according to the location of the corresponding traffic light system 200 stored in the database 340 to the traffic light system 200 in real time, or provides the traffic light system 200. Control to provide a guide voice stored in the traffic light system 200.

For example, when the RFID tag 110 is read, the traffic light system 200 may output a guide voice of a current location, output a guide voice of a traffic light state, and then output weather information.

Since the state of the traffic light shown on the screen of FIG. 6C is a red light, the visually impaired person may output a traffic guidance voice and additional information such as "It is now a red light. Please cross over later," and wait until the traffic light turns blue. .

FIG. 6D illustrates a state screen in which the traffic light of the traffic light system is changed. As shown in FIG. 6D, when the traffic light changes from red light to blue light, a guide voice such as "now blue light. Output

In addition, the traffic light system 200 may simultaneously transmit guide voices to a plurality of visually impaired persons. That is, the guide voice may be output to both "Hong Gil-dong" and "Gap-d" on the illustrated screen.

FIG. 6E illustrates a screen of a system manager managing a traffic light system. As shown in FIG. 6E, the location of the traffic light system 200 is changed or environmental information corresponding to a newly installed location, for example, If a local address, a database connection string, an IP address, a COM port, or the like is input, the system manager 330 may download and set traffic information and additional information corresponding to the location of the traffic light system 200.

7 is a diagram illustrating a method of distributing an RFID tag in a traffic guide method for the visually impaired according to an exemplary embodiment of the present invention.

Referring to FIG. 7, the main server 300 receives personal information about the visually impaired through the registration unit 310 (S 100).

The personal information of the visually impaired person registered with the main server 300 may include a name, a resident number, a handicapped number, a disability level, a type of disability, a guide dog, an address, a phone number, a mobile phone number, and a presence of a Bluetooth terminal 120. Can be.

The tag issuing unit 320 of the main server 300 generates an encrypted EPC code based on the personal information of the blind (S 110).

The tag issuing unit 320 outputs the RFID tag 110 in which the EPC code is recorded, and distributes the RFID tag 110 to the visually impaired person (S 120).

8 is a flowchart illustrating a traffic guidance method for the visually impaired according to an exemplary embodiment of the present invention.

Referring to FIG. 8, when the RFID tag 110 approaches, the traffic light system 200 receives a signal from the RFID tag 110 (S200).

At this time, since the RF antenna 211 of the traffic light system 200 is a directional antenna, one or more, for example, 4R RF antenna 211 is installed to tune the RF antenna 211 according to the feature and the situation ( Tunning, and gain is systematically adjusted to suit the situation, and the sensitivity of the RF antenna 211 is adjusted according to the climate to increase the recognition rate to optimize the reception sensitivity of the RF antenna 211.

The traffic light system 200 converts a signal read from the RFID tag 110 into a tag value (S 210).

The traffic light system 200 checks the identification information corresponding to the tag value, and if the person having the RFID tag 110 is visually impaired, the traffic light system 200 checks the traffic light state of the traffic light output unit 230 (S220).

The traffic light system 200 waits to select the traffic guidance voice and additional information from the guide voice storage 218 (S230).

The traffic light system 200 checks the possession of the Bluetooth terminal 120 (S 240), if the possession of the Bluetooth terminal 120, and transmits traffic guidance voice, additional information, etc. through the Bluetooth module 215 ( If it is not carried out at S250, the Bluetooth terminal 120, and outputs the traffic guidance voice, additional information, etc. through the voice output unit 216 (S260).

In addition, the traffic light system 200 transmits log information about the visually impaired to the main server 300 (S 270). In this case, the log information may be personal information, traffic information, time information, and the like.

The main server 300 manages log information for the visually impaired in the database 340 and, when an emergency situation occurs for the visually impaired, performs appropriate measures using the log information (S280).

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

1 is a block diagram illustrating a traffic guidance system for the blind according to the present invention.

2 is a view showing an example in which the visually impaired wearing a RFID tag and a Bluetooth terminal according to the present invention.

Figure 3 is a block diagram for explaining in detail the traffic light system according to the present invention.

4A to 4C are diagrams for explaining the RF antenna according to the present invention.

4D and 4E show reception sensitivity of an RF antenna as a directional antenna.

5 is a block diagram illustrating a main server according to a preferred embodiment of the present invention.

6A is a diagram for explaining a screen for registering personal information about a visually impaired person;

6B is a view showing an initial screen to which a main server and a traffic light system are connected.

Fig. 6C is a diagram showing a screen in which the traffic light system reads the RFID tag.

FIG. 6D illustrates a state screen in which a traffic light of the traffic light system is changed. FIG.

6E illustrates a screen in which a system manager manages a traffic light system.

7 is a flowchart illustrating a method of distributing an RFID tag in a traffic guide method for the visually impaired according to an exemplary embodiment of the present invention.

8 is a flowchart illustrating a traffic guidance method for the visually impaired according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: RFID tag 120: Bluetooth terminal

200: traffic light system 210: RFID terminal

211: RF antenna 212: signal processing unit

213: guide control unit 214: network interface unit

215: Bluetooth module 216: Voice output unit

217: identification information storage unit 218: guide voice storage unit

220: traffic light control unit 230: traffic light output unit

300: main server 310: register

320: tag issuing unit 330: system management unit

340: Database

Claims (8)

In traffic guidance system for the visually impaired, An RFID tag 110 in which an encrypted EPC code according to personal information of the visually impaired is recorded; A Bluetooth terminal 120 worn by the visually impaired person and outputting a voice corresponding to an RF signal received in a Bluetooth manner; When the RFID tag 110 approaches, the EPC code is received and converted into a tag value, the personal information corresponding to the tag value is identified, and the additional guide voice based on the traffic information and the additional guide voice based on the additional information are received. A traffic light system 200 which transmits a signal to the Bluetooth terminal 120 or outputs it through a voice output unit and provides log information for the visually impaired; Distributing the RFID tag 110 to the blind, providing the traffic guidance voice and the additional guidance voice according to the location where the traffic light system 200 is installed, and managing the log information as a database, In case an emergency occurs, the traffic information system for the visually impaired, including; main server (300) for coping with the log information. The traffic light system of claim 1, wherein An RFID terminal (210) for receiving the RF signal from the RFID tag (110), converting it into a tag value, grasping the personal information, and providing the traffic guidance voice and the additional guidance voice; A traffic light output unit 230 for outputting a traffic light state; And a traffic light control unit 220 for controlling the traffic light state of the traffic light output unit 230. The RFID terminal 210, An identification information storage unit 217 for storing personal information corresponding to a tag value; A guide voice storage unit 218 for storing the traffic guide voice and the additional guide voice; A Bluetooth module 215 for transmitting a signal to the Bluetooth terminal 120 in the Bluetooth manner; A voice output unit 216 for outputting the guide voices; A plurality of RF antennas (211) for receiving the RF signal from the RFID tag (110); A signal processor (212) for converting the RF signal received from each RF antenna (211) into a tag value; Grasp the personal information corresponding to the tag value converted by the signal processor 212, select each of the guide voices, and when the visually impaired person carries the Bluetooth terminal 120, The guide control unit 213 for transmitting through the module 215 and outputting the voice terminal 216 when not carrying the Bluetooth terminal 215 and transmitting the log information to the main server 300. )Wow; And a network interface unit (214) for transmitting the log information to the main server (300) through a wired / wireless network. The method of claim 2, The RFID tag 110 is attached to the cane possessed by the blind, The Bluetooth terminal 120, the Bluetooth function is built into the earphone that can be worn on the ear of the visually impaired, Each of the RF antennas 211 may be implemented with at least one directional antenna, and may be tuned according to a feature and a situation, and the gain of the RF antenna 211 may be adjusted according to a climate by systematically adjusting gains. Traffic guidance system for the visually impaired, characterized by optimizing the reception sensitivity by adjusting the sensitivity to increase the recognition rate. The method of claim 3, wherein The personal information may include at least one of a name, a resident number, a disability number, a disability level, a type of disability, a guide dog, an address, a phone number, a mobile phone number, or a Bluetooth terminal 120 of the visually impaired person. The traffic guidance voice is a voice corresponding to at least one or more of the location information of the traffic light system 200, the name of a place, a passing / going direction, a street address, a name of a nearby building, or a signal state, The additional guide voice is a voice corresponding to any one or more of local information, weather information or event information. The method of claim 1, The main server 300, A registration unit 310 for registering the personal information about the visually impaired through the computer terminal 400; A tag issuing unit (320) for generating an encrypted EPC code according to the personal information registered through the registration unit (310), outputting the RFID tag (110) in which the EPC code is recorded, and distributing it to the blind; A system manager 330 for changing the location of the traffic light system 200 or setting environment information corresponding to a newly installed location; A traffic guide voice and an additional guide voice set in a plurality of traffic light systems 200 connected through wired / wireless networks, and a database 340 for storing log information received from each traffic light system 200. Is composed by The log information comprises at least one of personal information, traffic information, and time information of the visually impaired person. The system manager (330), the traffic guidance system for the visually impaired to set at least one or more environmental information of the local address, database connection string, IP address or COM port of the traffic light system (200). In traffic guidance method for the visually impaired, Receiving registration information about the visually impaired at which the main server is registered (S100); Distributing an RFID tag in which the EPC code according to the personal information is recorded to the visually impaired person (S110 and S120); Receiving an RF signal from an RFID tag to which the traffic light system approaches (S200); Converting the RF signal into a tag value and identifying corresponding personal information (S210, S220); Selecting a traffic guidance voice and an additional guidance voice to be provided to the visually impaired (S230); In the personal information, it is determined whether a Bluetooth terminal is possessed (S240), and if it is possessed, a channel is secured by a Bluetooth method, and the respective guide voices are transmitted (S250). Transmitting / outputting steps (S240, S250, S260) of traffic guidance voice outputting the voice (S260); And transmitting the log information of the visually impaired to a main server, and managing, by the main server, log information of the visually impaired (S270, S280). The method of claim 6, The step of receiving the personal information (S100), through the registration screen output to the computer terminal, name, resident number, disability number, disability class, disability type, presence or absence of guide dog, address, telephone number, mobile phone number or Bluetooth terminal Receives and registers at least one of the possession, The transmitting / outputting step (S240, S250, S260) of the traffic guidance voice corresponds to at least one or more of the location information of the traffic light system, the name of a place, a passing / going direction, a street address, a name of a nearby building, or a signal state. A traffic guide method for the visually impaired, characterized by transmitting and outputting voice. The method of claim 7. The traffic guidance method, Setting, by the main server, at least one or more environment information among a local address, a database connection string, an IP address, or a COM port of the traffic light system when the location of the traffic light system is changed or newly installed; Coping with the main server based on the log information when an emergency occurs in the visually impaired person while managing log information including at least one of personal information, traffic information, and time information of the visually impaired person; Traffic guidance method for the visually impaired further comprising.

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