Intelligent blind person walking guide instrument and its walking guide method

It is a blind and intelligent technology, which is applied in the direction of walking aids, physical therapy, ophthalmology treatment, etc. It can solve the problems of inability to fully take care of the body, immature products, and insufficient attention, and achieve powerful functions, convenient operation, The effect of low cost

Inactive Publication Date: 2006-03-22
JINAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to insufficient attention and limited investment, there have been no mature products in this area.
At present, many products cannot fully take care of all parts of the body of blind people when walking

Method used

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  • Intelligent blind person walking guide instrument and its walking guide method
  • Intelligent blind person walking guide instrument and its walking guide method
  • Intelligent blind person walking guide instrument and its walking guide method

Examples

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0028] The measurement principle of the intelligent guide for the blind of the present invention is as follows:

[0029] The single-chip microcomputer generates a 40KHz square wave, and generates a section of ultrasonic waves through the ultrasonic transmitting probe. At the same time, the single-chip timer starts timing. The ultrasonic waves encounter obstacles in the air and are reflected by the ultrasonic receiving probe. The circuit detects the wave, generates an interrupt, and the microcontroller timer stops counting. The single-chip microcomputer processes the data, and calculates the distance of the obstacle according to the time difference from the transmission to the reception of the ultrasonic wave under the premise of the known ultrasonic sound velocity V, and...

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Abstract

The intelligent blind person walk guiding instrument consists of a main control module comprising main control circuit and upper ultrasonic detecting circuit, a phonetic warning module a radio transmission module and a vibration warning module connected via wires to the main control module, and ultrasonic detecting stick module wireless connected to the main control module. The present invention also provides the walk guiding method of the intelligent blind person walk guiding instrument, and the method includes sending out ultrasonic wave with the main control module and the ultrasonic detecting stick module, feeding the obstacle reflecting signal to the main control CPU to calculate the distance to the obstacle and sending out different phonetic warning signals or different frequency vibration signals based on the different orientations. The intelligent blind person walk guiding instrument has the features of powerful functions, small size, low cost, easy operation, etc.

Description

technical field [0001] The invention belongs to the technical field of information processing and control, and in particular relates to an intelligent navigator for the blind that assists the blind to walk and a navigation method for the navigator. Background technique [0002] There are more than 30 million visually impaired people in the world, and there are more than 8 million in China. When they walk, they usually rely on a cane to find their way. Every step of the road can only detect a limited number of points on the ground, not only the road conditions are not clear, but also the walking is very slow. In addition, the cane can only detect the ground conditions, but it is difficult to avoid the danger of the upper body colliding with obstacles. [0003] Foreign countries have now developed multiple electronic blind guides to assist the blind to walk. Most of these electronic blind guides have introduced electronic computers for signal proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F9/08A61H3/06
Inventor 陈美銮尹浩黎飘董博然陈武宗
Owner JINAN UNIVERSITY
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