CN201912401U - Local area positioning and navigation system and device for blind persons - Google Patents

Local area positioning and navigation system and device for blind persons Download PDF

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Publication number
CN201912401U
CN201912401U CN 201020671825 CN201020671825U CN201912401U CN 201912401 U CN201912401 U CN 201912401U CN 201020671825 CN201020671825 CN 201020671825 CN 201020671825 U CN201020671825 U CN 201020671825U CN 201912401 U CN201912401 U CN 201912401U
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CN
China
Prior art keywords
unit
rfid
wireless signal
signal
code
Prior art date
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CN 201020671825
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Chinese (zh)
Inventor
邹稷
王丽荣
白端元
王晓丽
张猛
宋雅娟
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长春大学
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Priority to CN 201020671825 priority Critical patent/CN201912401U/en
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Publication of CN201912401U publication Critical patent/CN201912401U/en

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Abstract

The utility model relates to a local area positioning and navigation system and device for blind persons, which belongs to the field of electronics. The system comprises an RFID (radio frequency identification) wireless signal positioning unit, an RFID wireless signal code reading unit and a corresponding external device. The RFID wireless signal positioning unit is arranged in a scene which needs to perform navigation and has the main functions of positioning and inquiring an RFID electronic tag so as to get information of a corresponding position or an object; and the RFID wireless signal code reading unit, a real-time map display unit, a voice feedback unit and an advancing route planning unit are solidified in a hand-held terminal device, after the relevant information of the RFID electronic tag is obtained, a program can automatically plan an advancing route in the scene in addition to giving out the position and the detailed information of the specific RFID electronic tag, and further display on the hand-held device after optimization. The system has the advantages of compact structure, precision in positioning, excellent route planning capability, detailedness of display, timeliness of voice feedback, and the like.

Description

Blind in local location and navigation system and device

Technical field

This utility model relates to electrical type, be particularly related to a kind of blind with local location and navigation system and device, especially refer to the advantage of performance intelligent navigation and voice forecast, solve the accessible walking of blind person and localized blind in the local scope with local location and navigation system and device.

Background technology

Blind person's quantity is 3,700 ten thousand people by the year ends 2009 whole world, and VI total number of persons is 16,100 ten thousand people, and wherein 12,400 ten thousand people suffer from low vision.The blind person needs society to give them more care and treatment as a specific group in the society, and they can better be lived on one's own life.But amblyopia crowd is owing to visual disturbance, and self lives and is subjected to very big restriction, and is especially difficult aspect trip.For many years, various circles of society have taked a series of measures to blind person's trip, and the sidewalk for visually impaired people has been laid in a lot of cities, and the part city has simple speech guide system, but also falls far short apart from the ideal of the accessible walking of blind person.Present blind with the navigation apparatus, such as bland person walking stick, navigation rod, the blind waveguided shoe of band speaker, blind man navigation instrument etc.But because the residing environment difference of blind person, the demand difference, the ancillary support equipment or the apparatus that solve each level blind person walking disorder fully can't be provided, therefore develop the accessible system of blind person that satisfies under the specific environment and have realistic meaning, relevant technology can be promoted, and is expected to progressively realize the accessible walking of blind person.

It is core that native system is intended adopting the RFID electronic tag, solves accessible walking of blind person and localized problem in the local scope.This project achievement can be directly used in the place that amblyopia crowd such as school for the blind concentrates, and can expand to townie each corner in the future.Therefore, the research of native system is significant to promoting the blindman quality.The research of native system meets the requirement of building a harmonious socialist society, and great application prospect and social benefit are arranged.

The utility model content

It is a kind of blind in local location and navigation system and device that the purpose of this utility model is to provide, solve blind person and the trip inconvenience of amblyopia crowd in a kind of fixedly local scope, the advantage of performance intelligent navigation and voice forecast solves accessible walking of blind person and localized problem in the local scope.

This utility model mainly is to receive RFID electronic module tag unit by portable handheld terminal device and associated transmissions to constitute.

Wherein, the RFID electronic module tag unit of associated transmissions reception comprises: RFID wireless signal positioning unit, RFID wireless signal are read the planning unit of code element, real-time map display unit, voice feedback unit, course.

Wherein, handheld terminal apparatus is made up of RFID built-in aerial, display screen, navigation key, function button, power key, wired earphone jack, display lamp;

The display location of main display interface is used for route, interdependent node position, nodal information and the relative article information of display operation project, navigation in the portable handheld terminal device; The interface of main menu that main display interface shows is used for all functions module of caller, and the user also can be by shortcut icon visit navigation way, node location, nodal information and the relevant information of below in each page;

The function button of portable handheld terminal device comprises on and off switch button, brightness regulation, volume adjusting, navigation key, acknowledgement key, return key;

Wherein the RFID wireless location unit in the RFID electronic module tag unit is made up of RFID electronic tag and correlation unit; Wireless signal is read code element, the planning unit of map display unit, voice feedback unit, course all solidifies in handheld terminal apparatus in real time.

RFID wireless signal positioning unit comprises:

Receive and transmit the antenna that the RFID wireless signal is read the code element signal;

Produce the RFID electronic tag of radiofrequency signal;

Convert dc source to read the RF signal that code element brings by the RFID wireless signal, and through big electric capacity storage power, again through the voltage stabilizing modulating unit, with analog digital and the D/A conversion unit that stabilized power source is provided;

Interfering signal is removed to take out the demodulating unit of real modulation signal;

The RFID wireless signal is read the signal that code element sends, send back data according to its requirement and read the voltage stabilizing modulating unit of code element logic control element, built-in storage for the RFID wireless signal;

As system's computing and deposit the recognition data built-in storage;

The data that logic control circuit is sent out are loaded into antenna behind the signal modulating unit, give the voltage stabilizing modulating unit that wireless signal is read code element again.

Wireless signal is read code element and is comprised:

Be used for sending wireless signal to the RFID electronic tag, and receive the antenna that responds data by the RFID electronic tag;

Through the small-signal that the RFID electronic tag is brought, repeated transmission is given the demodulating unit of microprocessor processes;

Carry out the analog digital and the D/A conversion unit of AD/DA conversion;

The RFID electronic tag is passed the number of delivering letters back, and the data of gained are returned microprocessor to application program;

Storage user program and memory of data;

The system frequency generator of the operating frequency of generation system;

Produce the phase place lock-bit loop of the required signal of radio frequency;

The signal loading that will send the RFID electronic tag to the wireless signal carrier wave and give and deliver to modulating unit;

Be used for and the Peripheral Interface of computer interconnection.

The signal of corresponding frequencies can be responded to and be sent automatically to the RFID signal label, and use the RFID active electronic label.

Map is stored in the map unit, calls when reading for signal.

Voice are stored in the voice unit, call corresponding voice when reading for signal.

RFID wireless signal positioning unit will be arranged in the scene that needs navigation.Major function is the information that location and inquiry RFID electronic tag obtain relevant position or article.The RFID wireless signal is read the planning unit of code element, real-time map display unit, voice feedback unit, course, all solidify in the handheld terminal device, after the relevant information that obtains the RFID electronic tag, program is except providing residing orientation of concrete RFID electronic tag and details, can also plan the course in this scene automatically, be optimized the back and on handheld device, shown.The terminal of this navigator is the hand-held machine, and will call and handle corresponding orientation, classification, voice messaging, also will in time respond user's operation, and information such as managing pattern-user interface (GUI), user clock and storage.In addition, also to communicate and interface with each peripheral components.Adopt that volume is little, speed fast, have better, autgmentability and portable real-time embedded operating system then become inevitable choice.Consider (SuSE) Linux OS open source code fully, and hardware compatibility is better, can be transplanted on the different processor, can select (SuSE) Linux OS for use and finish design by flush bonding processor.

The outside of hand-held device is provided with bluetooth earphone and transmits interface and wired earphone interface, shows main interface and relevant control button.Bluetooth earphone and wired earphone are the voice feedback output device, after the RFI electronic tag on certain position or the article is triggered, signal feedback is given handheld terminal, handheld terminal sends user according to voice signal in the middle of the RFID electronic tag 12 feedback signals triggering voice feedback unit 4 acquisition sound banks to by bluetooth earphone or wired earphone.

Finder of the present utility model is: send signal by handheld device, RFID electronic tag responder received signal, RFID responder coupling feedback signal, the RFID wireless signal that feedback signal is sent back in the handheld terminal is read in the code element, wireless signal is read inquiry and the planning that the code element responder reads the laggard walking along the street line of node signal, and the route that planning is good is delivered to the main interface display of handheld terminal; The route that planning simultaneously is good has corresponding coupling voice messaging to mate, and voice signal is delivered to earphone use for user.

The advantage of this utility model patent provides the special arrangement to location of the precision navigation in blind person and a kind of local scope of amblyopia crowd and information feedback, solve accessible walking of blind person and localized problem in the local scope, can be directly used in the place of concentrating, and be expected to expand to townie each corner such as amblyopia crowds such as schools for the blind.Therefore, this device is significant to the promotion of the raising of blindman quality and the community's well-being.

Description of drawings

Fig. 1 is this utility model internal structure logical relation block diagram.

Fig. 2 is this utility model finder block diagram.

Figure number sequence number implication:

1.RFID wireless signal positioning unit, 11. antennas, 12.RFID electronic tag, 13. demodulating units, 14.AD/DA (analog digital and digital simulation) converting unit, 15. voltage stabilizing modulating units, 16. logic control elements, 17. built-in storagies, 18. modulating units; 2.RFID wireless signal is read code element (code reader), 21. and is read element antenna, 22. demodulating units, 23. microprocessors, 24. memorizeies, 25. system frequency generators, 26. phase place lock-bit loops, 27. modulating units, 28. AD/DA (analog digital and digital simulation) converting unit; 3. in real time map display unit, 4. voice feedback unit, 5. course planning unit.

The specific embodiment

As shown in Figure 1, blindly form by antenna 11, RFID electronic tag 12, demodulating unit 13, AD/DA (analog digital and digital simulation) converting unit 14, voltage stabilizing modulating unit 15, logic control element 16, built-in storage 17 and modulating unit 18 by RFID wireless signal positioning unit 1, all solidify in the middle of handheld device with local location and navigation system.Be provided with bluetooth earphone in the handheld device outside and transmit interface and wired earphone interface, show main interface and relevant control button.

The RFID wireless signal is read code element (code reader) the 2nd, forms by reading element antenna 21, demodulating unit 22, microprocessor 23, memorizer 24, system frequency generator 25, phase place lock-bit loop 26, modulating unit 27, AD/DA (analog digital and digital simulation) converting unit 28.

RFID wireless signal positioning unit 1 is arranged in the scene that needs navigation.Major function is the information that inquiry RFID electronic tag 12 obtains relevant position or article.The RFID wireless signal is read the planning unit 5 of code element 2, real-time map display unit 3, voice feedback unit 4, course, all solidify in the handheld terminal device, after the relevant information that obtains RFID electronic tag 12, program is except providing concrete RFID electronic tag 12 residing orientation and details, can also plan the course in this scene automatically, be optimized the back and on portable equipment, shown.

The terminal of this navigator is the hand-held machine, and will call and handle corresponding orientation, classification, voice messaging, also will in time respond user's operation, and information such as managing pattern-user interface (GUI), user clock and storage.In addition, also to communicate and interface with each peripheral components.Adopt that volume is little, speed fast, have better, autgmentability and portable real-time embedded operating system then become inevitable choice.Consider (SuSE) Linux OS open source code fully, and hardware compatibility is better, can be transplanted on the different processor, can select (SuSE) Linux OS for use and finish design by flush bonding processor.

The outside is provided with bluetooth earphone and transmits interface and wired earphone interface in the handheld terminal device, shows main interface and relevant control button.Bluetooth earphone and wired earphone are the voice feedback outut device, after the RFID electronic tag circuit on certain position or the article is triggered, signal feedback is given handheld terminal, handheld terminal sends user according to voice signal in the middle of the RFID electronic tag 12 feedback signals triggering voice feedback unit 4 acquisition sound banks to by bluetooth earphone or wired earphone.

As shown in Figure 2, finder of the present utility model is: by " handheld device is sent signal a ", " RFID electronic tag responder received signal b ", " RFID responder Coupled Feedback signal c ", the RFID wireless signal that feedback signal is sent back in the handheld terminal is read in the code element, wireless signal is read code element " responder reads contact point signal d ", carries out " inquiry of route and planning e " then on the one hand, and the route that planning is good is delivered to " the main interface display f " of handheld terminal; The route that planning simultaneously is good has accordingly " coupling voice messaging g " to mate, and voice signal " is delivered to earphone h " use for user.

Claims (3)

  1. One kind blind in local location and navigation system and device, it is characterized in that: mainly be to receive RFID electronic module tag unit by portable handheld terminal device and associated transmissions to constitute;
    Wherein, the RFID electronic module tag unit of associated transmissions reception comprises: RFID wireless signal positioning unit, RFID wireless signal are read the planning unit of code element, real-time map display unit, voice feedback unit, course;
    Wherein, handheld terminal apparatus is made up of RFID built-in aerial, display screen, navigation key, function button, power key, wired earphone jack, display lamp;
    The display location of main display interface is in the portable handheld terminal device.
  2. 2. according to claim 1 blind with local location and navigation system and device, it is characterized in that:
    Wherein the RFID wireless location unit in the RFID electronic module tag unit is made up of RFID electronic tag and correlation unit; Wireless signal is read code element, the planning unit of map display unit, voice feedback unit, course all solidifies in handheld terminal apparatus in real time, and wherein RFID wireless signal positioning unit comprises:
    Receive and transmit the antenna that the RFID wireless signal is read the code element signal;
    The RFID electronic tag;
    Convert dc source to read the RF signal that code element brings by the RFID wireless signal, and,, provide stable power to analog digital and D/A conversion unit again through the voltage stabilizing modulating unit through big electric capacity storage power;
    Interfering signal is removed to take out the demodulating unit of real modulation signal;
    The RFID wireless signal is read the signal that code element sends, send back data according to its requirement and read the voltage stabilizing modulating unit of code element logic control element, built-in storage for the RFID wireless signal;
    The RFID wireless signal is read the signal that code element sends, send back data according to its requirement and read the logic control element of code element for the RFID wireless signal;
    As system's computing and deposit recognition data device's memory reservoir;
    The data that logic control circuit is sent out are loaded into antenna behind the signal modulating unit, give the voltage stabilizing modulating unit that wireless signal is read code element again.
  3. 3. according to claim 1 blind with local location and navigation system and device, it is characterized in that wireless signal reads code element and comprise:
    Be used for sending wireless signal to the RFID electronic tag, and receive the antenna that responds data by the RFID electronic tag;
    Through the small-signal that the RFID electronic tag is brought, repeated transmission is given the demodulating unit of microprocessor processes;
    Carry out the analog digital and the D/A conversion unit of AD/DA conversion;
    Simultaneously the RFID electronic tag is passed the number of delivering letters back, and the data of gained are returned microprocessor to application program;
    Storage user program and memory of data;
    The system frequency generator of the operating frequency of generation system;
    Produce the phase place lock-bit loop of the required signal of radio frequency;
    The signal loading that will send the RFID electronic tag to the wireless signal carrier wave and give and deliver to modulating unit.
CN 201020671825 2010-12-21 2010-12-21 Local area positioning and navigation system and device for blind persons CN201912401U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201020671825 CN201912401U (en) 2010-12-21 2010-12-21 Local area positioning and navigation system and device for blind persons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201020671825 CN201912401U (en) 2010-12-21 2010-12-21 Local area positioning and navigation system and device for blind persons

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278169A (en) * 2013-05-14 2013-09-04 渤海大学 Intelligent blind path guiding system and method used in public building
CN103295106A (en) * 2013-06-19 2013-09-11 大连民族学院 Intelligent information managing device
GB2502549A (en) * 2012-05-30 2013-12-04 Ibm Navigation system
CN103505344A (en) * 2012-06-29 2014-01-15 新昌县冠阳技术开发有限公司 Device guiding the blind wirelessly and intelligently
CN103599637A (en) * 2013-10-14 2014-02-26 苏州边枫电子科技有限公司 Rag baby having remote warming function
CN104306139A (en) * 2014-10-24 2015-01-28 南京理工大学 Blind people going out voice assisting tactile stick system based on RFID and navigation method of blind people going out voice assisting tactile stick system
CN105403222A (en) * 2015-12-08 2016-03-16 江苏科技大学 ROS based multi-blind guide robot and map building method in unknown environment
CN107728614A (en) * 2017-09-21 2018-02-23 南京中高知识产权股份有限公司 Blind person's guided robot and its method of work

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2502549A (en) * 2012-05-30 2013-12-04 Ibm Navigation system
US9710564B2 (en) 2012-05-30 2017-07-18 International Business Machines Corporation Providing location and spatial data about the physical environment
CN103505344A (en) * 2012-06-29 2014-01-15 新昌县冠阳技术开发有限公司 Device guiding the blind wirelessly and intelligently
CN103278169A (en) * 2013-05-14 2013-09-04 渤海大学 Intelligent blind path guiding system and method used in public building
CN103278169B (en) * 2013-05-14 2015-12-02 渤海大学 The intelligent blind route guidance system used in public building and bootstrap technique
CN103295106A (en) * 2013-06-19 2013-09-11 大连民族学院 Intelligent information managing device
CN103599637A (en) * 2013-10-14 2014-02-26 苏州边枫电子科技有限公司 Rag baby having remote warming function
CN104306139A (en) * 2014-10-24 2015-01-28 南京理工大学 Blind people going out voice assisting tactile stick system based on RFID and navigation method of blind people going out voice assisting tactile stick system
CN105403222A (en) * 2015-12-08 2016-03-16 江苏科技大学 ROS based multi-blind guide robot and map building method in unknown environment
CN107728614A (en) * 2017-09-21 2018-02-23 南京中高知识产权股份有限公司 Blind person's guided robot and its method of work

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110803

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