An intelligent guidance method and system for an indoor place for the blind

Abstract

The invention discloses an intelligent guiding method and system used for blind men in indoor places. The guiding system comprises a guiding server, destination terminals, radio frequency identification devices and guiding terminals carried by the blind men. According to the guiding method, when one blind man enters an identification area, the radio frequency identification device on an entrance obtains radio frequency ID information on the corresponding guiding terminal, transmits the radio frequency ID information to the guiding server and guides the blind man to the position where the guiding server is located, a destination is selected through a blind man keyboard connected with the guiding server, the guiding server sends guiding audio information, and the corresponding guiding terminal receives and plays the guiding audio information, so that the blind man walks according to guidance; the radio frequency identification device in the destination identifies and compares the audio information and sends audio information of the destination to complete path guidance. When the intelligent guiding system is used, the guiding audio information can be sent accurately, each blind man corresponds to one radio frequency ID, and identity information does not overlap, so that the guiding system can be used by multiple blind men at the same time; it is unnecessary to adopt a loudspeaker to broadcast the guiding audio information, and therefore the problem of disturbing residents due to broadcast is avoided.

Description

technical field [0001] The invention relates to the technical field of navigation for the blind, in particular to an intelligent guidance method and system for an indoor place for the blind. Background technique [0002] Blind people have great difficulties in traveling due to visual defects. With the advancement and development of science and technology, a variety of electronic products for blind people have appeared, mainly including the following categories. [0003] 1. Electronic guide dogs; electronic guide dogs use ultrasonic ranging technology, and the single-chip microcomputer sends pulse signals to each ultrasonic generator at regular intervals to make it emit ultrasonic waves forward, left, and right. According to the ultrasonic propagation speed and the time difference of the signal Calculate the distance between the electronic guide dog and the obstacle, and send a sound or vibration alarm signal to the blind. [0004] 2. Voice guide system for the blind; on Nov...

AI Technical Summary

Problems solved by technology

The advantage of this blind guide is that it is easy to scan (no need to swing the head), and it is easy to detect low-level obstacles, but the problem is still that it has a single function and can only realize the obstacle avoidance function.

[0006] The above types of electronic products provide great convenience for the travel of the blind, but they all focus on obstacle avoidance and have no path guidance function, so they cannot fully meet the travel needs of the blind.

[0007] In addition, the application number is 200810033637.5, and the name is a Chinese invention patent named a voice navigation method and system for the blind. The form of broadcasting, because in public places, if the sound is loud, it will cause noise, and if the sound is small, the blind will not be able to hear clearly, causing inconvenience

At the same time, due to the form of the broadcast, it is easy to be confused with the surrounding sound

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