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A navigation system for the visually impaired an intelligent white cane. 2012

A Jin Fukasawa, and Kazusihge Magatani

In this paper, we describe about a developed navigation system that supports the independent walking of the visually impaired in the indoor space. Our developed instrument consists of a navigation system and a map information system. These systems are installed on a white cane. Our navigation system can follow a colored navigation line that is set on the floor. In this system, a color sensor installed on the tip of a white cane, this sensor senses a color of navigation line and the system informs the visually impaired that he/she is walking along the navigation line by vibration. This color recognition system is controlled by a one-chip microprocessor. RFID tags and a receiver for these tags are used in the map information system. RFID tags are set on the colored navigation line. An antenna for RFID tags and a tag receiver are also installed on a white cane. The receiver receives the area information as a tag-number and notifies map information to the user by mp3 formatted pre-recorded voice. And now, we developed the direction identification technique. Using this technique, we can detect a user's walking direction. A triaxiality acceleration sensor is used in this system. Three normal subjects who were blindfolded with an eye mask were tested with our developed navigation system. All of them were able to walk along the navigation line perfectly. We think that the performance of the system is good. Therefore, our system will be extremely valuable in supporting the activities of the visually impaired.

UI MeSH Term Description Entries
D010355 Patient Identification Systems Organized procedures for establishing patient identity, including use of bracelets, etc. Patient Tracking,Identification System, Patient,Identification Systems, Patient,Patient Identification System,Patient Trackings,System, Patient Identification,Systems, Patient Identification,Tracking, Patient,Trackings, Patient
D002183 Canes Sticks used as walking aids. The canes may have three or four prongs at the end of the shaft. Walking Sticks,Cane,Stick, Walking,Sticks, Walking,Walking Stick
D004867 Equipment Design Methods and patterns of fabricating machines and related hardware. Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
D012656 Self-Help Devices Devices, not affixed to the body, designed to help persons having musculoskeletal or neuromuscular disabilities to perform activities involving movement. Assistive Devices,Assistive Technology,Assistive Device,Assistive Technologies,Device, Assistive,Device, Self-Help,Devices, Assistive,Devices, Self-Help,Self Help Devices,Self-Help Device,Technologies, Assistive,Technology, Assistive
D012682 Sensory Aids Devices and materials used to extend the functioning of the senses, most often including materials adapted for those having visual or hearing impairments and also includes materials that have been translated from one sensory mode to another. (ERIC https://eric.ed.gov/?qt Aid, Sensory,Aids, Sensory,Sensory Aid
D013813 Therapy, Computer-Assisted Computer systems utilized as adjuncts in the treatment of disease. Computer-Assisted Therapy,Protocol-Directed Therapy, Computer-Assisted,Computer-Assisted Protocol-Directed Therapy,Therapy, Computer-Assisted Protocol-Directed,Computer Assisted Protocol Directed Therapy,Computer Assisted Therapy,Computer-Assisted Protocol-Directed Therapies,Computer-Assisted Therapies,Protocol Directed Therapy, Computer Assisted,Protocol-Directed Therapies, Computer-Assisted,Therapies, Computer-Assisted,Therapies, Computer-Assisted Protocol-Directed,Therapy, Computer Assisted,Therapy, Computer Assisted Protocol Directed
D057233 Radio Frequency Identification Device Machine readable patient or equipment identification device using radio frequency from 125 kHz to 5.8 Ghz. Radio Frequency Identification,RFID
D059015 Wireless Technology Techniques using energy such as radio frequency, infrared light, laser light, visible light, or acoustic energy to transfer information without the use of wires, over both short and long distances. Technologies, Wireless,Technology, Wireless,Wireless Technologies
D019544 Equipment Failure Analysis The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices. Materials Failure Analysis,Prosthesis Failure Analysis,Analysis, Equipment Failure,Analysis, Materials Failure,Analysis, Prosthesis Failure,Analyses, Equipment Failure,Analyses, Materials Failure,Analyses, Prosthesis Failure,Equipment Failure Analyses,Failure Analyses, Equipment,Failure Analyses, Materials,Failure Analyses, Prosthesis,Failure Analysis, Equipment,Failure Analysis, Materials,Failure Analysis, Prosthesis,Materials Failure Analyses,Prosthesis Failure Analyses
D019987 Visually Impaired Persons Persons with loss of vision such that there is an impact on activities of daily living. Blind Persons,Persons with Visual Impairments,Visually Disabled Persons,Blind Person,Disabled Person, Visually,Disabled Persons, Visually,Impaired Person, Visually,Impaired Persons, Visually,Person, Blind,Person, Visually Disabled,Person, Visually Impaired,Persons, Blind,Persons, Visually Disabled,Persons, Visually Impaired,Visually Disabled Person,Visually Impaired Person

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