KR-20260063772-A - Guiding apparatus for blind person

Abstract

The present invention provides a guidance device for the visually impaired that generates a magnetic field from a magnetic field generating means along a road surface, generates a changed magnetic field at locations requiring a change of direction or stopping, such as intersections or crosswalks, and detects this to provide safe route guidance to the visually impaired. The device comprises: a magnetic field generating means positioned along a road and generating a magnetic field, but generating a changed magnetic field at a point ahead of an intersection or crosswalk; a magnetic field sensing means positioned on a guide cane carried by the visually impaired and detecting the magnetic field generated by the magnetic field generating means to output a corresponding signal; and a notification means outputting a walking guidance signal to the user according to the signal output by the magnetic field sensing means.

Inventors

• 류태준
• 문도원
• 강준서
• 박지순

Assignees

• 류태준
• 문도원
• 강준서
• 박지순

Dates

Publication Date

20260507

Application Date

20241031

Claims (6)

1. A magnetic field generating means arranged along the road surface and generating a magnetic field, but generating a changed magnetic field at a point ahead of a fork or crosswalk; A magnetic field sensing means disposed on a guide cane carried by a visually impaired person, which detects a magnetic field generated by the magnetic field generating means and outputs a corresponding signal; and A guidance device for the visually impaired comprising a notification means that outputs a walking guidance signal to the user according to a signal output from the above-mentioned magnetic field sensing means.
2. In paragraph 1, The above magnetic field generating means is, A guide device for the visually impaired installed together with luminous paving blocks.
3. In paragraph 1, The above magnetic field sensing means is, A magnetic field receiving unit that receives a magnetic field generated by the above magnetic field generating means and outputs a signal corresponding to the received magnetic field, and A guidance device for the visually impaired comprising a judgment unit that determines a fork in the road or a crosswalk based on a signal output from the magnetic field receiving unit and outputs a corresponding signal.
4. In paragraph 3, The above magnetic field receiving unit is, A guide device for the visually impaired including a graphene hole sensor.
5. In paragraph 3, A plurality of installation grooves are formed in the end of the guide stick so that the magnetic field receiving end can be inserted and installed, and The above magnetic field receiving unit is, A guide device for the visually impaired, formed in the shape of a capsule and installed by being inserted into the above-mentioned installation groove.
6. In paragraph 1, The above notification means is, A guidance device for the visually impaired characterized by providing notifications through haptic responses.

Description

Guiding apparatus for blind person The present invention relates to a guidance device for the visually impaired, and more specifically, to a guidance device for the visually impaired capable of providing way guidance to the visually impaired by detecting a magnetic field generated by a magnetic field generating device arranged along a road surface. It is common to use guide canes for the visually impaired to ensure safe walking and navigation. In addition, guide blocks for the visually impaired are being installed along sidewalks to ensure safe walking and navigation for the visually impaired. Guide paving blocks for the visually impaired are cement blocks installed on sidewalks in a rectangular shape with vibrant colors. Guide structures, such as dots or linear protrusions, are formed on the surface, enabling the visually impaired to walk by finding the direction indicated by the guide structures using a guide cane or similar device. However, there are cases where tactile paving blocks intended for the visually impaired are damaged due to negligence in maintenance or removed due to complaints, resulting in a problem where the visually impaired cannot receive guidance via the paving blocks. In addition, various obstacles exist on sidewalks where tactile paving blocks for the visually impaired are installed, posing a problem that hinders pedestrian movement. In other words, if a store near a location where tactile paving blocks for the visually impaired are installed stacks certain items on the paving blocks, a visually impaired person who is unaware of this may bump into the stacked items while walking. In addition, road or building construction may cause construction materials to accumulate on guiding paving blocks, thereby obstructing the walking of visually impaired people. In addition, rental scooters, such as shared kickboards, are left abandoned on tactile paving blocks intended for the visually impaired, which can obstruct the walking of visually impaired people. There is a problem in that when a visually impaired person moves along tactile paving blocks using a guide cane or similar device and their movement is halted by the aforementioned obstacle, they lose their direction of walking and become disoriented, which consequently increases the risk of accidents. 10-2022-0081107 may be cited as an example of prior art for the present invention. FIG. 1 is a block diagram showing the configuration of a guidance device for the visually impaired according to one embodiment of the present invention. Figure 2 is a diagram showing the direction of the magnetic field generated in a solenoid coil. FIG. 3 is a diagram showing the magnetic field generated by the magnetic field generating means used in the present invention. FIG. 4 is a perspective view showing an example of a guide cane in which a magnetic field sensing means and a notification means used in the present invention are arranged. Figure 5 is a cross-sectional view along line AA of Figure 4. Preferred embodiments according to the present invention will be described in detail below with reference to the attached drawings. FIG. 1 is a block diagram showing the configuration of a guidance device for the visually impaired according to one embodiment of the present invention. Referring to FIG. 1, a guidance device (100) for a visually impaired person according to one embodiment of the present invention may include a magnetic field generating means (110), a magnetic field sensing means (120), and a notification means (130). A magnetic field generating means (110) is arranged along the road surface. The magnetic field generating means (110) generates a predetermined magnetic field. At this time, the magnetic field generating means (110) can change the direction of the magnetic field generated according to the direction of the path or the stopping position, etc., that guides the visually impaired person. First, let's examine the direction of the generated magnetic field. Figure 2 is a diagram showing the direction of the magnetic field generated in a solenoid coil. Referring to FIG. 2, it shows that when current flows along a solenoid coil (1) wound in a cylindrical shape, a magnetic field (2) directed in a predetermined direction is generated. As described above, by utilizing the principle that a magnetic field is generated in a predetermined direction from a solenoid coil, the direction of the magnetic field generated by the magnetic field generating means placed at each of the straight path, left fork, right fork, or cross intersection can be set differently. FIG. 3 is a diagram illustrating an example of the direction of magnetic field generation generated by the magnetic field generating means used in the present invention. Referring to FIG. 3, it is illustrated that first to fourth unit magnetic field generating means (110A, 110B, 110C, 110D) are arranged along the road. Additionally, it is illustrated that a fifth unit magnetic field generating means