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A smart phone-based blind person identification and guided blind-guiding method

A smartphone, guided technology for personal safety

Active Publication Date: 2019-03-22
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the present situation of blind people and the popularity of smart phones, the present invention uses smart phones to solve these problems for blind people

Method used

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  • A smart phone-based blind person identification and guided blind-guiding method
  • A smart phone-based blind person identification and guided blind-guiding method
  • A smart phone-based blind person identification and guided blind-guiding method

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Experimental program
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Effect test

Embodiment Construction

[0069] In terms of identity recognition: the blind person puts the mobile phone in his pocket or holds it in his hand, and the acceleration sensor of the mobile phone records the three-axis acceleration sequence collected by the user, and obtains the eigenvalue of the sequence as the user's relevant behavioral characteristics, and uses the DTW algorithm to analyze the characteristics The data is trained and categorized to identify blind people.

[0070] In terms of navigation and positioning: when the user is indoors, because the indoor GPS signal cannot be received well, the acceleration sensor and gyroscope of the mobile phone can assist the blind in path navigation; outdoors, use GPS navigation.

[0071] specific plan:

[0072] First, train the smart phone of the blind person so that the mobile phone of the blind person can recognize the identity of the owner. Sudden changes, after the mobile phone falls to the ground, the mobile phone is in a static state at this time, an...

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Abstract

The invention discloses a blind identification and guiding-type blind guiding method based on an intelligent mobile phone. Firstly, the intelligent mobile phone of the blind is trained, the mobile phone of the blind can identify the identity of the owner, after the mobile phone falls on the ground, the mobile phone at the moment is in a static state, data of a built-in acceleration sensor remain constantly unchanged, the fact that the mobile phone falls accidently is judged, the mobile phone then makes beep sounds, and the blind can follow the beep sounds to find the mobile phone; and if the mobile phone is stolen by another person, data of the built-in acceleration sensor still change, alarming information is automatically given to a guardian, and separation from the mobile phone is reminded to the guardian. The walking path of the blind is navigated, the guardian takes the blind to walk the usual path for one time, and the path is recorded. The popular intelligent mobile phone is used for realizing blind identification and navigation, the practicability is strong, and the cost is low.

Description

technical field [0001] The invention belongs to the field of personal safety, and in particular relates to a smart phone-based blind person identification and guided blind-guiding method. Background technique [0002] According to a survey on December 12, 2014, according to the assessment of the International Guide Dog Federation, the ideal ratio of visually impaired people to guide dogs is 100:1. But at present, there are about 17.31 million visually impaired people in the country, and there are only about 70 guide dogs. And the training cost of a guide dog is between 120,000 and 150,000 yuan. In real life, the public space faced by blind people and guide dogs is also greatly restricted. Above-mentioned various factors cause guide dog and can not obtain great popularization. To a certain extent, the emergence of guide dogs has not brought good news to most blind people. [0003] With the continuous development of science and technology, smartphones are no longer limited ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/725H04L9/32G01C21/16
CPCG01C21/16H04L9/3231H04M1/72403H04M1/72454H04M1/72481
Inventor 郇战万彩艳李晨徐义梦杨翰文
Owner CHANGZHOU UNIV
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