CN211434017U

CN211434017U - Blind guiding stick

Info

Publication number: CN211434017U
Application number: CN201922079987.1U
Authority: CN
Inventors: 张晓晨; 张慧
Original assignee: Guangdong University of Technology
Current assignee: Guangdong University of Technology
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-09-08
Anticipated expiration: 2029-11-27

Abstract

The embodiment of the application discloses blind guiding stick includes: the crutch comprises a crutch body, a coding module and a detection module; the detection module and the coding module are both arranged on the stick body; the detection module comprises a camera, a microprocessor and a power supply device; the camera is in communication connection with the microprocessor; the coding module comprises a coding magnetic suction switch; the microprocessor is in communication connection with the coded magnetic attraction switch. According to the blind guiding stick, the detected obstacles are presented in a pattern combination mode, the blind can quickly judge the surrounding obstacles by touching and sensing the change of the encoder, the sharp touch sense of the blind is fully utilized, and the problem that the existing blind guiding stick cannot timely and safely convey the information of the obstacles is solved.

Description

Blind guiding stick

Technical Field

The application relates to the technical field of blind guiding tools, in particular to a blind guiding stick.

Background

The current mainstream blind guiding tools comprise a blind guiding stick and a blind guiding dog. Due to the high training cost and the limited applicability, the large-scale cultivation and the large-scale popularization of the guide dog are very difficult. The common blind guiding stick can detect the object in front in a physical contact mode, has low price and can be used as a supporting crutch. However, the general blind guiding stick has a single function, and a user cannot accurately judge the obstacle through the blind guiding stick, so that the user cannot accurately avoid the obstacle, thereby causing inconvenience in traveling and even danger. Although there is also intelligent guide stick at present, the running condition of intelligent guide software is limited, and such APP can only be downloaded and installed on the smart phone, but the smooth touch surface of the smart phone is not friendly to the blind, and when the intelligent guide stick is used, the blind intelligently moves according to the prompt of the guide system through voice, all contents take voice as a main prompt mode, and not only tells the blind how to walk on the road, but also tells the front of the blind whether to have roadblocks, the information content is too complex, the blind can be busy listening to the system and disperse attention, and ignore other important prompts (such as voice around the self environmental sound of the road).

Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a blind guiding stick to solve the problem that the existing blind guiding stick cannot timely and safely convey the information of the obstacle.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a blind guiding stick, which solves the problem that the existing blind guiding stick cannot timely and safely convey barrier information.

In view of the above, the present application provides a blind guiding stick, which includes a stick body, a coding module and a detection module;

the detection module and the coding module are both arranged on the stick body;

the detection module comprises a camera, a microprocessor and a power supply device;

the camera is in communication connection with the microprocessor;

the coding module comprises a coding magnetic suction switch;

the microprocessor is in communication connection with the coded magnetic attraction switch.

Preferably, the detection module further comprises a flash lamp, and the flash lamp is in communication connection with the camera.

Preferably, the device further comprises a warning device;

the warning device comprises a plurality of azimuth magnetic attraction switches for warning the position of the obstacle;

the warning device is in communication connection with the microprocessor;

the detection module further comprises microwave radar equipment, and the microwave radar equipment is in communication connection with the microprocessor.

Preferably, the warning device further comprises a human body magnetic attraction switch for warning the position of the barrier relative to the human body;

the human body magnetic attraction switch is arranged in the direction magnetic attraction switch.

Preferably, the detection module further comprises an infrared absorption spectrometer;

the infrared absorption spectrometer is in communication connection with the microprocessor.

Preferably, the earphone is also included;

the earphone is in communication connection with the microprocessor.

In the embodiment of this application, provide a blind guiding stick, include: the crutch comprises a crutch body, a coding module and a detection module; the detection module and the coding module are both arranged on the stick body; the detection module comprises a camera, a microprocessor and a power supply device; the camera is in communication connection with the microprocessor; the coding module comprises a coding magnetic suction switch; the microprocessor is in communication connection with the coded magnetic attraction switch. According to the blind guiding stick, the detected obstacles are presented in a pattern combination mode, the blind can quickly judge the surrounding obstacles by touching and sensing the change of the encoder, the sharp touch sense of the blind is fully utilized, and the problem that the existing blind guiding stick cannot timely and safely convey the information of the obstacles is solved.

Drawings

Fig. 1 is a schematic structural view of a blind guiding stick according to an embodiment of the present application;

FIG. 2 is a flow chart of the structure of an encoding module in the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a coded magnetic switch according to an embodiment of the present application;

FIG. 4 is a graph of the meaning of the encoded graph in the embodiment of the present application;

FIG. 5 is a schematic structural diagram of a detection module in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a warning device in an embodiment of the present application;

fig. 7 is a side view of a warning device in an embodiment of the present application.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The application designs a blind guiding stick, and considers that although the prior blind guiding stick technology can adopt advanced detection equipment to obtain complete data, the problem of how to effectively transmit the data to the blind person is not well solved. The blind guiding stick is designed by combining the characteristics of the existing detection device and the detection technology and the relative sensitivity of the touch feeling of the blind, the type and the position information of the barrier can be presented by adopting a method which can be quickly sensed by the blind, and the convenience of the blind in going out is facilitated.

For ease of understanding, please refer to fig. 1-7.

The blind guiding stick in the embodiment of the application comprises: the crutch comprises a crutch body 1, an encoding module 2 and a detection module 3; the detection module 3 and the coding module 2 are both arranged on the stick body 1; the detection module 3 comprises a camera 3-1, a microprocessor 3-4 and a power supply device 3-5; the camera 3-1 is in communication connection with the microprocessor 3-4; the coding module 2 comprises a coding magnetic suction switch 2-2; the microprocessor 3-4 is in communication connection with the coded magnetic attraction switch 2-2.

The camera 3-1 is used for monitoring and shooting surrounding obstacles, and sending monitoring and shooting results to the microprocessor 3-4 for judgment. The microprocessor 3-4 sends the judgment result to the coding module 2, so that the coding magnetic suction switch 2-2 presents different on-off states.

The magnetic switch can control the magnetic force to change the switch form according to the on-off state of the current, and the switch is particularly shown as whether the switch is convex or not. When no obstacle exists, the magnetic switch is in a horizontal state and does not have a bulge, and the magnetic switch is in a power-on state. When an obstacle signal is received, the magnetic switch is powered off, and the switch is raised to form touch stimulation. Fig. 3 and fig. 4 illustrate an encoding method of the encoding module 2 according to an embodiment of the present application (dark color is a convex state, and light color is a horizontal state). The method is used for coding several most common barriers which are most worried and prevented when the blind people walk in the investigation of the blind people. The coding classifies common obstacles, firstly, the obstacles are divided into convex obstacles 2-2-1 higher than the road surface and concave obstacles 2-2-2 lower than the ground, which are respectively represented by a triangle switch with an upward sharp corner and a triangle switch with a downward sharp corner. Four rectangular switches which are equally distributed are arranged below the triangular switch. The rectangular switches represent vehicle warnings 2-2-3, pedestrian warnings 2-2-4, pothole warnings 2-2-5, and step warnings 2-2-6 from left to right. The triangular switch and the rectangular switch have 6 switches, different switch code combinations represent different meanings, and specific combinations and meanings are shown in figure 4. The encoding method provided in the embodiment of the present application is only an exemplary example, and the specific encoding method may be re-encoded according to personal needs, which is not described herein again.

The blind guiding stick provided by the embodiment presents the detected obstacles in a pattern combination mode, the blind can quickly judge the surrounding obstacles by touching and feeling the change of the encoder, the sharp touch sense of the blind is fully utilized, and the problem that the existing blind guiding stick cannot timely and safely convey the information of the obstacles is solved.

On the basis of the above embodiment, the blind guiding stick is specifically described as follows:

the stick body 1 is a common metal or plastic hollow stick body. The model stick body shown in fig. 1 has a diameter of 3cm, a handle of 30cm and a length of 124cm, and can provide the function of a common blind-guiding stick without special functions, which means that similar blind-guiding sticks can be used in combination with other components in the present application.

The coding module 2 consists of an anti-skid bulge 2-1 at the palm, a coded magnetic attraction switch 2-2 at the fingertip and a clamping groove 2-3 of the stick body, a signal receiving module is arranged in the coding module, an electromagnet control group and a lithium battery charging group are used in a matched mode, and the function is to prompt the type of the blind person barrier through meaningful graphic coding. The antiskid bulges 2-1 are made of silica gel skin-friendly materials, have large friction force and play an antiskid role when the blind person grips the antiskid bulges. The stick body clamping groove 2-3 is used for fixing the coding module 2 on the stick body 1.

Referring to fig. 6 and 7, the portable electronic device further includes a warning device 4 and an earphone, wherein the earphone is in communication with the microprocessor 3-4.

The warning device 4 comprises a plurality of position magnetic attraction switches 4-1 for warning the position of the obstacle and a human body magnetic attraction switch 4-2 for warning the position of the obstacle relative to the human body, the human body magnetic attraction switch 4-2 is arranged inside the position magnetic attraction switch 4-1, and the warning device 4 is fixed on the crutch body 1 by matching with a blind crutch buckle 4-3. The warning device 4 is in communication connection with the microprocessor 3-4 and is used for warning the position and the height of barriers around the blind person relative to the blind person, and a lithium battery charging set is arranged in the warning device for combined use. When the warning device 4 is used, the warning device is taken out of the buckle, one hand is used for grasping, the palm passes through the annular band, and the small person faces the small person. The azimuth magnetic suction switch 4-1 is a circle of bulges surrounding the mannequin, when no obstacle exists, the azimuth magnetic suction switch 4-1 is horizontal, and the electromagnet is electrified and tightly sucked; when the obstacle azimuth information is received, the electromagnet switch at the corresponding position is powered off, and the switch bounces, so that the blind person is stimulated by touch, and the direction of the obstacle is known. The human body magnetic suction switch 4-2 is used for prompting the blind to keep the relative height of the barrier, the device divides the human body into five strip-shaped switches, namely a round head and four limbs and trunk, and the strip-shaped switches are connected with the electromagnet switch; when the obstacle azimuth information is received, the electromagnet switch at the corresponding position is powered off, the switch bounces, the blind person is stimulated by touch, and the knowledge of the height of the obstacle relative to the blind person is formed.

The detection module 3 further comprises a flash lamp, and the flash lamp is in communication connection with the camera 3-1. The camera 3-1 and the flash provide image input and illumination, and the obtained visual field information is subjected to scene capture, environment perception and light source perception by the microprocessor 3-4, the position of the user is determined, and the type and size of the obstacle are determined. The system also comprises a microwave radar device 3-2, wherein the microwave radar device 3-2 is in communication connection with the microprocessor 3-4 and is used for identifying the position of surrounding obstacles, transmitting the received distance information to the microprocessor 3-4, judging the position between the obstacle and a user, transmitting the position information larger than a preset distance (for example, 3m) to the warning device 4, carrying out voice reminding after the distance is smaller than the preset distance, and playing warning in an earphone. The device also comprises an infrared absorption spectrometer 3-3, wherein the infrared absorption spectrometer 3-3 is in communication connection with the microprocessor 3-4 and is used for assisting in judging the property of the barrier. The spectrometer can distinguish different materials by the infrared absorption degree of the materials, for example, plastic high polymer materials are generally inferred as billboard road barriers and the like, metal materials are generally inferred as vehicle railings and the like, organic materials are generally inferred as pedestrians, animals and trees and the like. The image information obtained according to the camera is added into the material discrimination of the infrared spectrum instrument, and the accuracy of analyzing the type of the barrier from the shape and the material is higher. The microprocessor 3-4 is used for integrating the collected image information, distance information and material information and then making judgment, and the processed information is displayed and broadcasted in voice through the movable coding switch 2-2, the warning device 4 and the earphone 5.

The terms "first," "second," "third," "fourth," and the like in the description of the application and the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A blind guiding stick is characterized by comprising a stick body, a coding module and a detection module;

the detection module and the coding module are both arranged on the stick body;

the camera is in communication connection with the microprocessor;

the coding module comprises a coding magnetic suction switch;

2. The blind guiding stick of claim 1, wherein the detection module further comprises a flash, the flash being communicatively coupled to the camera.

3. The blind guiding stick of claim 1, further comprising a warning device;

the warning device is in communication connection with the microprocessor;

4. The blind guiding stick of claim 3, wherein the warning device further comprises a magnetic switch for warning the position of the obstacle relative to the human body;

5. The blind guiding stick of claim 1, wherein the detection module further comprises an infrared absorption spectrometer;

6. The blind guide cane of claim 1 further comprising an earphone;

the earphone is in communication connection with the microprocessor.