JP2001155287A - System for supporting electromagnetic assistance walk by visually disabled person - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a walk assistance system by which a visually disabled person smoothly walks. SOLUTION: A concentric circular magnetic field is generated in the circumference of a loop antenna outgoing route 2 by a signal current from a loop amplifier 1. In the meantime, a loop antenna incoming route 3 passes through an iron pipe 4 so that the generated magnetic field hardly leaks outside the pipe 4. Then the signal current is introduced to the guidance coil of a loop ear 6 attached to the visually disabled person 5 by the magnetic field generated from the route 2 and a signal is amplified and inputted to an earphone attached to the disabled person 5 as announcement by voice, etc. Thus an installing work is easy and the person 5 does not mistake a destination owing to guidance by voice.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has the configuration shown in FIGS. 1 and 2, and is devised for the purpose of assisting a visually impaired person to walk when going outside. For example, in the case of a station, install a PVC pipe on the section from the ticket gate to the platform, on the ceiling or under the floor as an outbound route, and attach an iron pipe on the return route,
A loop antenna is laid inside and connected to a loop amplifier. When a loop antenna, a home number or a destination guidance announcement of a train is recorded intermittently on an endless tape at an interval of about 5 seconds, the audio is fed from the tape deck to the loop antenna via a loop amplifier as a sound current. This is a walking assistance system for the visually impaired, who can go to the target home or the like without mistake by using the voice from the loop ears worn by the visually impaired. On the other hand, in the case of a hospital, in the same way as the former, the target voice current flows to the loop ear by magnetic induction from the section from the reception to each medical department, the loop antenna laid under the ceiling or under the floor of the corridor, and the target You can go to the medical department without mistake. In addition, since this method uses electromagnetic induction, noise is not included in the signal of the loop ear, and the SN ratio is very good, so that it is very excellent such that there is no discomfort even if the earphone is worn for a long time. . Currently, it is difficult to continuously lay the section from the ticket gate to the platform of blind studs used at stations and the like, and it is too complicated to understand at large stations. In a hospital or the like, it is difficult to implement this method for the purpose of the corridor. Also, it is difficult for visually impaired persons themselves to confirm mistakes themselves. However, the method for guiding the visually impaired walking by the electromagnetically guided walking assistance system of the present invention is that, when the ceiling surface is used, the installation work is simple, and the user can be continuously guided to the target location by noise-free voice. Make no mistakes. Further, by devising, it is possible to flow various living information from the loop antenna. In this way, unlike the method using blind studs, this electromagnetically guided walking assistance system is a revolutionary, man-free, reliable and accurate method that enables the visually impaired to obtain walking security and various information. It is a walking guide method for the visually impaired.

[Brief description of the drawings]

FIG. 1 is an outline and configuration diagram of an electromagnetically guided walking assistance system for the visually impaired.

[Fig. 1-1] Cross-sectional view of the ceiling antenna laying method

FIG. 1-2 Cross-sectional view of the method of laying an antenna under the floor

[Explanation of symbols]

 Reference Signs List 1 loop amplifier 2 loop antenna outward path 3 loop antenna return path 4 iron pipe 5 visually impaired 6 loop ear 7 floor

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[Procedure amendment]

[Submission date] February 28, 2000 (200.2.2
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

[Fig. 1-1] Cross-sectional view of the ceiling antenna laying method

FIG. 1-2 Cross-sectional view of the method of laying an antenna under the floor

[Explanation of Codes] Loop amplifier 2. Loop antenna outward path 3. 3. Loop antenna return path Iron pipe 5. Visually impaired person 6. Loop year 7. Floor

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG. 1-1

FIG. 1-2

Claims (1)

[Claims] It is very difficult for a visually impaired person with normal hearing to go to a destination at a specific place such as a station, a hospital, a school or an airport. This is an apparatus using electromagnetic induction invented to solve such inconvenience. In this device, the visually impaired person guides the electromotive force to the induction coil of the loop ear attached to the body by electromagnetic induction using a magnetic field generated from the loop antenna attached to the loop amplifier, and the amplified signal is passed through the earphone to the visually impaired person. This is a system that transmits to the ears as a signal such as voice and assists the visually impaired in walking. This system can be used in stations, hospitals, schools, airports, pedestrian crossings and sidewalks, where people come and go.