Blind guide crutch based on ultrasonic ranging

A technology of ultrasound and crutches, used in crutches, appliances to help people walk, physical therapy, etc., can solve the problems of passers-by without reminders, blind people being injured, passers-by accidental collisions, etc.

Inactive Publication Date: 2014-03-19
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing blind-guide crutches only remind the blind themselves and have no reminding effect on passers-by, and easily cause passers-by to bump into blind people by mistake and cause blind people to be injured, the present invention proposes a blind-guide crutch based on ultrasonic distance measurement

Method used

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  • Blind guide crutch based on ultrasonic ranging
  • Blind guide crutch based on ultrasonic ranging
  • Blind guide crutch based on ultrasonic ranging

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specific Embodiment approach 1

[0017] Specific implementation mode 1. Combination figure 1 with figure 2 Illustrate this specific embodiment, the blind guide crutch based on ultrasonic ranging described in this specific embodiment comprises crutch bar 13, ultrasonic ranging module, single-chip microcomputer 9 and alarm circuit, and ultrasonic ranging module, single-chip microcomputer 9 and alarm circuit are all fixed on On the crutch rod 13, wherein, the ultrasonic distance measuring module is fixed on the front part of the crutch rod 13, and is 160mm-220mm away from the lower end of the crutch rod 13, and the upper end top of the crutch rod 13 is provided with components for identifying the direction; The signal end of the module is connected to the distance detection signal end of the single-chip microcomputer 9, and the alarm signal output end of the single-chip microcomputer 9 is connected to the alarm control signal input end of the alarm circuit.

[0018] In this embodiment, the single-chip microcom...

specific Embodiment approach 2

[0020] Specific embodiment 2. The difference between this specific embodiment and the blind-guiding crutch based on ultrasonic ranging described in specific embodiment 1 is that the part used to identify the direction is a long crutch handle with a spherical part at one end. 11. One end provided with a spherical part is the front part of the crutch rod 13 .

[0021] In this embodiment, a spherical component crutch handle 11 is provided at one end to realize the direction recognition component, so that the blind person can accurately grasp the direction of the crutch when holding the crutch, and then ensure that the ultrasonic distance measuring module on the crutch rod 13 is heading toward in front of. The middle part of the crutch handle 11 described in this embodiment can be designed as a concave structure, so that it feels more comfortable to hold.

specific Embodiment approach 3

[0022] Specific embodiment three, the difference between this specific embodiment and the blind guide crutch based on ultrasonic ranging described in specific embodiment one is that the ultrasonic ranging module includes a transmitting ultrasonic probe 2 and a receiving ultrasonic probe 1, and the transmitting ultrasonic probe 2 The sounding control signal input end of the single-chip microcomputer 9 is connected to the distance detection control signal output end, and the feedback signal output end of the ultrasonic probe 1 is connected to the distance detection signal input end of the single-chip microcomputer 9.

[0023] In this embodiment, the transmitting ultrasonic probe 2 is used to transmit ultrasonic waves forward, and the receiving ultrasonic probe 1 is used to receive reflected ultrasonic waves.

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Abstract

The invention relates to a blind guide crutch based on ultrasonic ranging, and relates to the field of blind guide crutches, aiming at solving the problem that a blind person is easily injured by being hit by a passerby by mistake since a traditional blind guide crutch has an effect of reminding the blind person only without a reminding effect on the passerby. The blind guide crutch based on the ultrasonic ranging comprises a crutch rod, an ultrasonic ranging module, a singlechip and an alarm circuit, wherein the ultrasonic ranging module, the singlechip and the alarm circuit are all fixed on the crutch rod; the ultrasonic ranging module is fixed at the front part of the crutch rod and is 160-220 mm away from the tail end of the lower part of the crutch rod; a part used for identifying a direction is arranged on the top of the upper end of the crutch rod; the signal end of the ultrasonic ranging module is connected with the distance detection signal end of the singlechip; the alarm signal output end of the singlechip is connected with the alarm control signal input end of the alarm circuit. The blind guide crutch disclosed by the invention is suitable for reminding the passerby and the blind person when the blind person walks.

Description

technical field [0001] The invention relates to the field of blind-guiding crutches, in particular to a blind-guiding crutch based on ultrasonic distance measurement. Background technique [0002] Blind people are a special group among the disabled. According to the World Health Organization, there are 40 to 45 million blind people in the world, and the number of low-vision people is three times that of blind people, about 140 million. my country is the country with the largest number of blind people in the world, with about 5 million blind people, accounting for 18% of the total number of blind people in the world. About 450,000 people are blind every year in our country. If the current trend continues to remain unchanged, the total number of blind people in our country is expected to increase by 4 times by 2020. Because it is difficult to domesticate guide dogs and the cost is high, most blind people in China still use traditional crutches. Therefore, it is very important...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61H3/06A61H3/02
Inventor 宗华刘冠君张云褚红军
Owner HARBIN INST OF TECH
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