Wearable ultrasonic guiding equipment

Abstract

The invention provides wearable ultrasonic guiding equipment. The wearable ultrasonic guiding equipment comprises a plurality of ultrasonic wave receiving and transmitting units, a plurality of mounting brackets, a walking parameter detection module, a road condition analyzing and automatic alarm parameter regulating module, an alarm module and a power supply module, wherein the plurality of ultrasonic wave receiving and transmitting units are used for transmitting ultrasonic waves and receiving ultrasonic echo waves reflected by a barrier; the plurality of mounting brackets are used for mounting the ultrasonic wave receiving and transmitting units and worn on corresponding body parts of a blind user; the walking parameter detection module is used for acquiring walking parameters of the blind user; the road condition analyzing and automatic alarm parameter regulating module is used for judging the existence of the barrier in the front and the change of ground flatness and acquiring barrier meeting time when the blind user is walking at a current speed through the walking parameters; the alarm module is used for sending barrier existence information and corresponding alarm information to the blind user; and the power supply module is used for supplying power to each module. The device can liberate two hands of a blind person when the blind person is walking, can fully detect the barriers in front of the body of the blind person and the ground and makes an early alarm by using an audio signal which represents the time when the blinder user meets the barrier when the blinder user is walking at the current speed, so that the walking safety of the blinder person is ensured.

Description

technical field [0001] The invention relates to the technical field of walking assistance for the blind, and more specifically relates to a wearable ultrasonic blind guiding device. Background technique [0002] In order to solve the inconvenience of blind people traveling, especially the problem of avoiding obstacles on the road, the currently widely used mobility assistance systems for the blind are guide dogs and guide sticks. [0003] Guide dogs need long-term strict training, are expensive and have a limited working life. In addition, they need to cooperate with the blind for a long time to obtain a better guiding effect, so they are difficult to use widely in practice. [0004] Guide sticks can be divided into traditional guide sticks and electronic guide sticks. Traditional blind guide sticks are simple in structure, just ordinary wooden sticks or sticks made of other materials, and their main function is to detect fixed obstacles within 0.5 meters ahead by blind peo...

AI Technical Summary

Problems solved by technology

[0005] However, due to the limited height of the blind guide stick, it is not easy to detect the half-height obstacles in the air; as for using the distance information from the blind person to the obstacle for alarm, the blind person's perception of the distance itself is not accurate, and it will also be affected by the blind person's walking speed. When walking too slowly, the blind will cause unnecessary worry due to premature alarm, and when walking too fast, it will cause collision accidents due to untimely alarm. The continuous tapping of the stick can only be detected, and it is easy to miss; in addition, no matter whether using a guide stick or a guide dog, the blind person needs to occupy one hand.

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